A vehicle control device includes power supply terminal units, load terminal units, a first power supply line section, a second power supply line section, and a trunk cutoff circuit. The power supply terminal units are electrically connected to the power supply units. The load terminal units are electrically connected to the load units. The first power supply line section is electrically connected to a first power supply terminal included in the power supply terminal units. The second power supply line section is electrically connected to a second power supply terminal included in the power supply terminal units. The trunk cutoff circuit electrically connects the first power supply line section to the second power supply line section, and electrically disconnects the first power supply line section from the second power supply line section based on abnormality of at least one of a current value and a voltage value.
H02H 3/16 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à un courant de défaut à la terre ou à la masse
B60R 16/03 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques pour l'alimentation des sous-systèmes du véhicule en énergie électrique
H02H 3/04 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion Détails avec signalisation ou supervision additionnée à la déconnexion, p. ex. pour indiquer que l'appareil de protection a fonctionné
H02H 3/087 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge pour des systèmes à courant continu
H02H 3/10 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge sensibles de plus à quelque autre condition électrique anormale
H02H 3/20 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à un excès de tension
An electronic control unit receives power from multiple supplies and distributes the power to loads. The electronic control unit has power terminals for the supplies, load terminals for the loads, and wiring with a main line between a first and second power terminal. Branch lines connect the main line to each load terminal. Disconnect circuits are installed on the main line and on each branch line, and can be switched between conducting (connected) and non-conducting (disconnected) states by a controller. The disconnect circuits include a main-line disconnect circuit, load disconnect circuits on the branch lines, and first and second power disconnect circuits on respective main-line sections. When the controller in the electronic control unit detects an abnormal condition based on current and/or voltage, the controller disconnects the main line and at least one terminal circuit to cut off power.
H02H 3/10 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge sensibles de plus à quelque autre condition électrique anormale
A device includes a first system conductor supplying a first load from a first power source, a second system conductor supplying a second load from a second power source, and an inter-system conductor supplies the first power source to the second load or the second power source to the first load. First and second series-connected switches share a common connection terminal coupled to ground through a resistive element. A circuit measures first, second, and third voltages of the first system conductor, the second system conductor, and the common connection terminal, respectively, to ground; determines a conduction fault of at least one switch based on whether the first and/or second voltage differs from the third voltage under switch on/off states; and determines a cutoff fault based on whether the third voltage is at least a threshold value.
H02H 7/22 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour appareillage de distribution, p. ex. système de barre omnibusCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour dispositifs de commutation
This electromagnetic relay comprises: a case (10) in which a housing chamber (10a) is formed; first and second terminals (90a, 90b) that are formed from an electroconductive material and are exposed to the outside of the case; a switch (55) that establishes electrical connection between the first terminal and the second terminal as a result of movable contacts (51a, 51b, 51c) coming into contact with fixed contacts (40a, 40b, 40c), and that electrically disconnects the first terminal and the second terminal as a result of the movable contacts being separated from the fixed contacts; an electromagnetic coil (31) that is housed in the housing chamber and that, by being energized, generates a magnetic force for displacing the movable contacts; and an isolation wall (70) that suppresses the flow of water vapor toward the switch side, the water vapor occurring due to heat generated by the electromagnetic coil in association with energization.
A vehicle state notification device (1) comprises a vehicle state estimation unit (7) and a sounding control unit (8). The vehicle state estimation unit (7) estimates a traveling state of a vehicle, on the basis of information input from sensors (3-6) mounted on the vehicle. The sounding control unit (8) performs control to make a sound for a driver who drives the vehicle and a surrounding environment of the vehicle, in accordance with the traveling state of the vehicle estimated by the vehicle state estimation unit (7).
A control apparatus includes an H-bridge circuit, a wire connected in series with an electrical load, first and second control units, first and second rise amount calculation units, and a wire temperature calculation unit. The H-bridge circuit includes four switches arranged between high and low potential nodes, with first and second common connection terminals. The first control unit activates the first and fourth switches, passing a first current through the wire and load; the second control unit activates the second and third switches, passing a second current. The first and second rise amount calculation units determine the wire's temperature rise based on the respective currents during each operation. The wire temperature calculation unit calculates the wire's temperature by integrating the temperature rise amounts from both operations.
H02H 9/02 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion sensibles à un excès de courant
H02P 7/03 - Dispositions pour réguler ou commander la vitesse ou le couple de moteurs électriques à courant continu pour commander le sens de rotation des moteurs à courant continu
This electromagnetic relay comprises: an electromagnetic coil (21) that generates a magnetic force by being energized; a first contact part (14); and a second contact part (121) that comes into contact with or separates from the first contact part as the electromagnetic coil is switched between being energized and not being energized, thereby opening/closing an energization path. In addition, the electromagnetic relay also comprises: a case (30) that accommodates the electromagnetic coil, the first contact part, and the second contact part therein; and heat-conducting members (44, 45) disposed outside the case. The heat-conducting members have one surface (441, 451) joined to the case and the other surface (442, 452) provided on the opposite side to the one surface and exposed to a space (30b) around the case, and have a higher thermal conductivity than the case.
This sound generation device (20), which is used in a vehicle (10) and executes a sound generation program, comprises an energy sound generation unit (202). The energy sound generation unit (202) acquires a value pertaining to a remaining energy amount (Me) of the vehicle (10). In addition, the energy sound generation unit (202) generates a sound pertaining to the remaining energy amount (Me) by adjusting the amplitude, frequency, and production time of the sound on the basis of the value pertaining to the remaining energy amount (Me). Furthermore, the energy sound generation unit (202) produces the generated sound.
A notification device (30) used in a vehicle (10) and executing a notification program includes a helmet information output unit (302). The helmet information output unit (302) receives radio waves from a helmet (60) having a transmitter (602) for transmitting radio waves, acquires a value relating to a load (Wc) applied to the vehicle (10) by the helmet (60), an occupant including the driver of the vehicle (10), and luggage loaded in the vehicle (10), and outputs information relating to the helmet (60) on the basis of the received radio waves and the value relating to the load (Wc).
G08B 21/24 - Alarmes aide-mémoire, p. ex. alarmes contre la perte
A42B 3/30 - Montage de postes radio ou de systèmes de communication
B60R 25/30 - Détection relative au vol ou autres événements relatifs aux systèmes antivol
B60R 25/102 - Équipements ou systèmes pour empêcher ou signaler l’usage non autorisé ou le vol de véhicules actionnant un dispositif d’alarme un signal étant envoyé vers un lieu distant, p. ex. signal radio transmis à un poste de police, à une entreprise de sécurité ou au propriétaire du véhicule
An electromagnetic relay includes a pair of fixed contact terminals arranged; a movable contact terminal that approaches the pair of fixed contact terminals and separates therefrom, thereby making a portion between the pair of fixed contact terminals conducted or cutoff; a contact part between the pair of fixed contact terminals and the movable contact; a contact terminal housing that accommodates the pair of fixed contact terminals, the movable contact terminal and the contact part, the contact terminal housing including an arc extinguishing chamber; and a magnet that produces magnetic field causing the arc to be extended and guiding the arc to the arc extinguishing chamber. In the contact terminal housing, a communication hole is provided, being formed at a portion positioned in a predetermined direction relative to the contact part, the communication hole causing the arc extinguishing chamber to communicate with outside the arc extinguishing chamber.
An electromagnetic relay (1) comprises a contact part (2) and an electromagnet part (3). The electromagnet part (3) is an electromagnet device. In an off state of the electromagnet part (3), a movable element core (33) is at the illustrated base position. In an on state, the electromagnet part (3) moves the movable element core (33) in a first direction (AD1). The electromagnetic relay (1) has a magnetic bias device (8). The magnetic bias device (8) attracts the movable element core (33) in a second direction (AD2) with the magnetic force of a permanent magnet (81). The magnetic bias device (8) applies a biasing force to the movable element core (33) most strongly at the base position of the movable element core (33). However, as the movable element core (33) moves in the first direction AD1, the biasing force is rapidly lost. The magnetic bias device (8) suppresses incorrect behavior in an off state.
An electromagnetic relay includes a case defines an accommodating space, and a base defines the accommodating space together with the case. A coil is disposed in the accommodating space and generates electromagnetic force when energized. A pair of fixed contactors with one end disposed in the accommodating space and fixed to the base while the other end protrudes outside the accommodating space. The fixed contactors each have a fixed contact. A movable contactor is disposed in the accommodating space and driven by the electromagnetic force generated by the coil to make or break contact with the fixed contacts. The movable contactor includes a movable contact. An adsorbent is disposed within the accommodating space at a location different from a contact point between the fixed contact and the movable contact.
H01H 50/04 - Montage complet de relais ou d'éléments de relais sur un support ou à l'intérieur d'une enveloppe
H01H 51/06 - Armature mobile entre deux positions limites de repos se déplaçant dans une direction à la suite de l'excitation de l'électro-aimant et retournant, après désexcitation de celui-ci, à sa position de départ, grâce à l'énergie emmagasinée pendant le déplacement dans la première direction, p. ex. en utilisant un ressort, en utilisant un aimant permanent par gravité
A volume control device is included in a sound generation system, and the sound generation system controls a sound generator to generate a sound based on sound data. The volume control device controls a volume of the sound data, and includes at least one of (i) a circuit and (ii) a processor with a memory storing computer program code executable by the processor. The at least one of the circuit and the processor is configured to cause the volume control device to: store and accumulate, in a storage, target volumes repeatedly set at a predetermined period; and sequentially determine, as the volume of the sound data, a moving average of the target volumes accumulated in the storage during a predetermined average target period.
A sound generation control device is configured to select, as a selection basic waveform table, one of multiple basic waveform tables stored in advance in a storage; select, as a selection frequency table, one of multiple frequency tables stored in advance in the storage; obtain a frequency applied waveform by transforming the basic waveform in a time axis direction so that a time width of the basic waveform of the selection basic waveform table becomes one period of a playback frequency of the selection frequency table; and generate, as generation waveform data, a waveform in which the frequency applied waveform is repeated successively.
A sound generation control device is configured to: acquire an input waveform as a basis of sound data; determine whether the input waveform includes an excess portion; generate an absolute value waveform in response to determining that the input waveform includes the excess portion; generate a peak hold waveform based on the absolute value waveform; generate a gain curve; execute a smoothing process on the gain curve to generate a smoothen gain curve; generate sound data by multiplying a delayed input waveform by the smoothen gain curve. The delayed input waveform is obtained by shifting the input waveform by a predetermined waveform delay time. Then the generated sound data is output from a sound output unit.
A speaker 10 comprises a first terminal 50A and a second terminal 50B. The first terminal 50A has a first pin-shaped connection part 51A that extends toward one side in the X-direction, and the second terminal 50B has a second pin-shaped connection part 51B that extends toward one side in the X direction. The first mating terminal 90A is connected, from one side in the Y direction, to the first pin-shaped connection part 51A. The second mating terminal 90B is connected, from one side in the Y direction, to the second pin-shaped connection part 51B. The speaker 10 further comprises a protection wall 60 for protecting the pair of pin-shaped connection parts 51A, 51B.
A first movable element (22) has a first movable contact (22a) disposed on one side in one direction (D1) relative to a first fixed contact (14a) and a second movable contact (22b) disposed on the one side in the one direction relative to a second fixed contact (16a). A second movable element (24) has a third movable contact (24a) disposed on the one side in the one direction relative to a third fixed contact (18a) and a fourth movable contact (24b) disposed on the one side in the one direction relative to a fourth fixed contact (20a). A movable support (30) supports the first movable element with a first elastic body (26) therebetween, supports the second movable element with a second elastic body (28) therebetween, and is provided so as to be capable of reciprocating movement between a first position and a second position shifted toward the one side in the one direction from the first position. The first elastic body allows the first movable element to rock relative to the movable support, and the second elastic body allows the second movable element to rock relative to the movable support.
H01H 1/50 - Moyens pour accroître la pression de contact, empêcher la vibration des contacts, maintenir ensemble les contacts après l'entrée en contact, ou pour ramener les contacts à la position d'ouverture
An electromagnetic relay includes a case having an accommodating space that is open to an outside through an opening, and a base fitted into the case and closing the opening. The case or the base has a flame extinguishing hole for extinguishing a flame. The accommodating space accommodates a coil, a pair of fixed contactors and a movable contactor, and communicates with the outside through the flame extinguishing hole. A sealing member covers the flame extinguishing hole to make the accommodating space a sealed space and suppress intrusion of gas from the outside to an inside of the accommodating space. A moisture-absorbing member is arranged in the accommodating space to absorb water vapor within the accommodating space.
An electromagnetic relay (1) has a contact part (2) and an electromagnetic part (3). The contact part (2) has a pair of fixed contacts (21, 22) and a movable contact (23). The contact part (2) partitions an arc-extinguishing chamber (5) by means of a partition member (6). The partition member (6) includes a capsule member (61) and a plate member (36) of the electromagnetic part (3). The capsule member (61) is made of ceramic. The plate member (36) is made of iron. The electromagnetic relay (1) is provided with a permanent magnet (7). The permanent magnet (7) provides a drive magnetic field for stretching arcs (AK1, AK2) in the arc-extinguishing chamber (5). The plate member (36) has a recess (45). The recess (45) is capable of receiving the stretched arcs (AK1, AK2). The recess (45) expands the arc-extinguishing chamber (5).
A wiper control device includes: a wiper element; and a drive unit configured to control on/off of the wiper element. The drive unit is configured to decelerate a wiper by switching the wiper element from on to off to stop power supply from the wiper element to a motor of the wiper when a wiper angle reaches a deceleration start angle. The drive unit is configured to resume the power supply from the wiper element to the motor by switching the wiper element from off to on after the wiper angle reaches the deceleration start angle.
In an electromagnetic relay device, a plunger causes a movable member to reciprocate to cause a movable contact to abut onto or separate from a stationary contact. A solenoid unit includes an electromagnetic coil, a stationary core, and a movable core. The stationary core includes a plate member located in front of the electromagnetic coil. The plate member is arranged to overlap the electromagnetic coil when viewed in a reciprocation direction of the plunger. The stationary core has a stationary inside portion located inside the electromagnetic coil. The plate member and the stationary inside portion are integrated with each other. The stationary core has a joint surface between the outer peripheral surface of the stationary inside portion and the rear-side surface of the plate member. The joint surface is curved convexly with respect to the plunger to constitute a stationary curved surface.
This method for manufacturing a vehicular notification device involves: preparing a workpiece of a vehicle notification device including a sounding body having a sounding function and a sound collection function, a data calculation unit, a data correction unit, and a sounding control unit for controlling the sounding body on the basis of first sound source data corrected by the data correction unit; preparing an inspection device for sounding from an inspection sounding body on the basis of second sound source data; sounding from the inspection sounding body on the basis of the second sound source data in the inspection device; and obtaining correction data by means of the data calculation unit on the basis of the second sound source data and an output signal output from the sounding body when the sound from the inspection sounding body is collected by the sounding body of the workpiece. A sound pressure, which is generated from the sounding body by the control of the sounding control unit and based on the corrected first sound source data, is the sound pressure of the sounding body, and the correction data is set so as to compensate for attenuation of the sound pressure of the sounding body caused by the structure of a vehicle in order to bring the sound pressure of the sounding body at a prescribed location around the vehicle close to a target sound pressure.
This sound generation device for a vehicle is mounted on an automobile, and comprises: a sound generation body (100) that has both a sound generation function for generating sound toward the surroundings of the automobile, and a sound collection function for outputting an output signal indicating sound collected from the surroundings of the automobile; a recording unit (172) in which sound source data corresponding to a predetermined sound is recorded; a collected sound determination unit (S310, S330) that determines whether or not the sound collected by the sound generation body is the predetermined sound, on the basis of the output signal outputted from the sound generation body; and a sound generation control unit (S320, S360, S360A) that, if the collected sound determination unit determines that the sound collected by the sound generation body is the predetermined sound, controls the sound generation body so that sound is generated from the sound generation body, on the basis of the sound source data recorded in the recording unit.
B60R 11/02 - Autres aménagements pour tenir ou monter des objets pour postes radio, de télévision, téléphones, ou objets similairesDisposition de leur commande
This relay comprises: a case (10) which forms an accommodation chamber (10a) and has an inner wall (10b) exposed to the atmosphere in the accommodation chamber; fixed contacts (30a, 30b, 30c) that are accommodated in the accommodation chamber in a state of being exposed to the atmosphere in the accommodation chamber; movable contacts (51a, 51b, 51c) that are accommodated in the accommodation chamber in a state of being exposed to the atmosphere in the accommodation chamber and are configured to be able to come into contact with and separate from the fixed contacts; a first terminal and a second terminal (40a, 40b) that are exposed to the outside of the case; and heat conduction parts (20a, 20b, 20c, 20d, 20e) that have higher thermal conductivity than the case and are fixed to the case. The movable contacts are brought into contact with the fixed contacts to enable conduction between the first terminal and the second terminal, and the movable contacts are separated from the fixed contacts to disrupt conduction between the first terminal and the second terminal. The heat conduction parts promote heat radiation from the atmosphere in the accommodation chamber to the atmosphere outside the case through the inner wall.
In this electromagnetic relay, a movable member (16) is reciprocated along one direction (Da) in association with switching between energization and non-energization of an electromagnetic coil (21), and has a contact surface (161a) facing one side in the one direction. A stopper part (242) has an air hole (244) and a stopper surface (243) contacted by the contact surface when the movable member is moved to one side in the one direction. A movable contact (121) comes into contact with and separates from a fixed contact (14) as the movable member reciprocates. The air hole has an open end (244b) which is formed in the stopper surface and opened so as to face the contact surface in the one direction, and a hole opposite end (244a) which is a hole end on the opposite side to the open end and is open. In a state in which the contact surface is separated from the stopper surface, the air passing through the air hole is less likely to flow when flowing from the open end to the hole opposite end than when flowing from the hole opposite end to the open end.
H01H 50/30 - Dispositions mécaniques en vue d'empêcher ou d'amortir les vibrations ou les chocs, p. ex. par équilibrage de l'armature
H01H 50/20 - Éléments mobiles de circuits magnétiques, p. ex. armature mobiles à l'intérieur de la bobine et sensiblement longitudinalement par rapport à l'axe de celle-ciÉléments mobiles de circuits magnétiques, p. ex. armature mobiles coaxialement à la bobine
A resistance element (Rs) is connected between a common connection terminal (T3) and ground. An electronic control device (5): turns on a first switch (SW1), turns off a second switch (SW2), determines whether or not a first voltage (V1) and a third voltage (Vr) do not match and determines whether or not the energization function of the first switch has failed; turns on the second switch, turns off the first switch, determines whether the second voltage and the third voltage do not match and determines whether or not the energization function of the second switch has failed; turns on the first and second switches, determines whether or not at least one of the first and second voltages does not match the third voltage, and determines whether or not the energization function of at least one of the first and second switches has failed; and turns off the first and second switches, determines whether or not the third voltage is equal to or greater than the threshold value and determines whether or not the cutoff function of at least one of the first and second switches has failed.
H02H 3/06 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion Détails avec reconnexion automatique
H02H 7/18 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour pilesCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour accumulateurs
H02H 7/20 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour équipement électronique
H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
A power distribution ECU (100) is a control device for a vehicle that is used in the vehicle and controls the distribution of power supplied from a plurality of power source parts (110) to a plurality of load parts (120). The power distribution ECU (100) comprises a plurality of power source terminals (10), a plurality of load terminals (20), a first power source line part (31), a second power source line part (32), and a trunk line breaker circuit (70). The power source terminals (10) are electrically connected to the power source parts (110). The load terminals (20) are electrically connected to the load parts (120). The first power source line part (31) is electrically connected to a first power source terminal (11). The second power source line part (32) is electrically connected to a second power source terminal (12). The trunk line breaker circuit (70) cuts off electrical connection between the first power source line part (31) and the second power source line part (32) on the basis of an abnormality in at least one of a current value and a voltage value.
B60R 16/02 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques
B60R 16/03 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques pour l'alimentation des sous-systèmes du véhicule en énergie électrique
H02H 7/00 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail
H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
An ECU (20) is provided with a control unit (70) that controls a cutoff circuit (50). The cutoff circuit (50) includes a cutoff circuit (50C) provided on a trunk line (41), cutoff circuits (50A1, 50B1) provided corresponding to terminals (30A1, 30B1) connected to power supplies (10), and cutoff circuits (50A2, 50A3, 50B2, 50B3) provided corresponding to terminals (30A2, 30A3, 30B2, 30B3) connected to loads (11). When at least one of a current flowing through the cutoff circuit (50) and a voltage of power supply wiring (40) satisfies a predetermined abnormality detection condition, the control unit (70) controls some of the plurality of cutoff circuits (50A1, 50A2, 50A3, 50B1, 50B2, 50B3) and the cutoff circuit (50C) to be in a cutoff state.
H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
H02H 7/18 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour pilesCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour accumulateurs
An electromagnetic relay includes a sealed housing, a fixed contact, a movable element having a movable contact, a shaft, a movable core, a fixed core, a return spring, an electromagnetic coil and a sleeve. The shaft is slidably inserted in a through-hole formed in the fixed core. The sleeve has a support part supporting the movable core so as to define a position of the movable core relative to the fixed core when no magnetic attraction acts therebetween. At a front end of the sleeve, there is formed a position adjustment part for adjusting a positional relationship between the fixed core and the support part during the direct or indirect fixing of the sleeve to the fixed core.
A wiper control device includes an acquisition unit and an estimation unit. The estimation unit is configured to acquire a value related to a current flowing through a wiper motor that drives a wiper configured to reciprocate between a first position and a second position. The estimation unit is configured to estimate a wiper angle, which is a rotation angle of the wiper, based on a current ripple in the current flowing through the wiper motor. The current ripple has a periodicity corresponding to driving of the wiper motor.
An electromagnetic relay (10) comprises a pair of fixed contacts (11, 13) that are arranged at a prescribed interval, a mobile contact (15, 17) that moves toward and away from the pair of fixed contacts to allow or block conduction between the pair of fixed contacts, a contact housing (20, 21, 31, 32) that houses contact parts (13, 15) of the pair of fixed contacts and the mobile contact and has an arc-extinguishing chamber (22) that is a space into which arcs that arise between the fixed contacts and the mobile contact are drawn, and an electromagnet that generates a magnetic field that draws the arcs in a prescribed direction to guide the arcs to the arc-extinguishing chamber. The contact housing has formed therein a communication hole (40) that allows the arc-extinguishing chamber to communicate with the outside of the arc-extinguishing chamber at a position that is further in the prescribed direction than the contact parts.
This electromagnetic relay includes: a pair of fixed contactors; a movable contactor (15) that approaches and separates from the pair of fixed contactors in a first direction (D1), and that can rotate around a predetermined axis (C1) extending in the first direction; a housing in which an arc-extinguishing chamber is formed; contact members (31, 36) that are connected to a member that rotates together with the movable contactor and that protrude in a second direction (D2) perpendicular to the first direction; and contacted members (41, 46) which are connected to the housing and in which recesses (42, 47), into which tip portions (31a, 36a) of the contact members are inserted, are formed. A clearance (A) is set between an outer surface of the tip portions of the contact members and an inner surface of the recesses. When the movable contactor rotates around the predetermined axis, outer surfaces of the tip portions of the contact members contact an inner surface disposed in a third direction (D3) perpendicular to the first direction and the second direction with respect to the contact members in the recesses, and the rotation of the movable contactor is thereby restricted.
A sound generator includes a sound generating body that generates sound, and a housing that houses the sound generating body. The housing includes a base having a base outer cylindrical portion and a partition wall, which is joined with a sound generating body, provided inside the base outer cylindrical portion, a cover that covers an opening on a front side of the base outer cylindrical portion, and a case that covers an opening on a rear side of the base outer cylindrical portion. The case includes a case rear portion arranged to face the opening of the base outer cylindrical portion, and a case width adjustment portion provided in an extending manner from the case rear portion. The case is joined to the base outer cylindrical portion at an end of the case width adjustment portion.
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
This sound volume control device is included in a sound production system (8) in which a sound production body (80) produces sound on the basis of sound production data (Dsd), and controls the sound volume (Vp) of the sound production data. The sound volume control device comprises a target sound volume storage unit (181) that sequentially stores and accumulates target sound volumes (d) repeatedly set in a prescribed cycle (T1). The sound volume control device also comprises a sound volume determination unit (183) that sequentially determines, as the sound volume of the sound generation data, a moving average of target sound volumes over a prescribed average target period (Tav) among the target sound volumes accumulated by the target sound volume storage unit.
In the present invention, if an input waveform (Win) includes an excess portion (EX) in which the absolute value of a level (Lv) exceeds a limiter threshold value (Th), then an absolute value waveform generation unit (S03) generates an absolute value waveform (Wab) obtained by converting the level into the absolute value of the level in the input waveform. A peak retention waveform generation unit (S04) generates a peak retention waveform (Wp) on the basis of the absolute value waveform. A gain curve generation unit (S05) generates a gain curve (Wgn) indicating the relationship between a gain (Gn) obtained on the basis of the level in the peak retention waveform and an input waveform time (Tm). A smoothing processing unit (S06) obtains, by smoothing processing, a smooth gain curve (Wsgn) based on the gain curve. A sound production data generation unit (S07, S08) generates sound production data by multiplying a delay input waveform (Wind), in which the input waveform is shifted to the time plus side (Dtp), by the smooth gain curve.
H03G 11/04 - Niveau de limitation dépendant de l'intensité du signalNiveau de limitation dépendant de l'intensité de la porteuse sur laquelle le signal est modulé
B60Q 5/00 - Agencement ou adaptation des dispositifs de signalisation acoustique
According to the present invention, a sound generation entity generates sound on the basis of generated waveform data (Da). A basic waveform selection unit (30) selects one basic waveform table from among a plurality of basic waveform tables (301a) that each has a basic waveform (301b) that is a waveform of a sound to be a basis of generated waveform data, and that are stored in advance, as a selected basic waveform table (TB1). A frequency selection unit (32) selects, as a selected frequency table (TB2), one frequency table from among a plurality of frequency tables (321a) representing a relation between a reproduction frequency (fb), which is the number of repetitions per unit time, in a case in which the basic waveform is assumed to be deformed and repeated, and elapsed time. A frequency application unit (34) generates, as generated waveform data, a waveform (341) in which a frequency application waveform (34a) repeatedly continues, the frequency application waveform (34a) being obtained by deforming the basic waveform in a temporal axis direction (Dt) such that a temporal width (Tfa) of the basic waveform of the selected basic waveform table is one cycle (Tfb) of the reproduction frequency of the selected frequency table.
This electromagnetic relay is provided with: a case (10) that forms a housing space (104); a base (12) that forms the housing space together with the case; a coil (18) that is disposed in the housing space and that generates electromagnetic force when energized; a pair of fixed contact elements one end side of which is disposed in the housing space and fixed to the base, and the other end side of which protrudes outside the housing space, the pair of fixed contact elements including a fixed contact (16); and a movable contact element which is disposed in the housing space and has a movable contact (40) that is driven by the electromagnetic force generated by the coil to come into and out of contact with the fixed contact. An adsorbent (50) is disposed in a location different from a location where the fixed contact and the movable contact in the housing space in at least one of the fixed contact and the movable contact contact with each other.
A wiper controller includes an acquirer and a determiner. The acquirer acquires a value related to an electric current flowing through a wiper motor driving a wiper reciprocating between a first position and a second position. The determiner determines that a position of the wiper is either the first position or the second position based on a temporal change of the electric current flowing through the wiper motor.
A flame-quenching hole (50) that provides communication between an accommodating space (104) and the outside thereof and that quenches flame is formed in a case (10), and the case (10) is provided with a sealing member (60) that covers the flame-quenching hole to make the accommodating space a sealed space, and which suppresses entry of gas into the accommodating space from the outside. Further, a moisture absorbent member (70) for absorbing water vapor in the accommodating space is provided in the accommodating space.
A proximity alarm device includes a microcomputer, a speaker, an electric board, and a board temperature sensor housed in a housing of the proximity alarm device. The board temperature sensor is mounted on a sensor mounting surface of the electric board, and outputs board temperature information indicating the detected board temperature to the microcomputer. An arithmetic unit of the microcomputer estimates and calculates the speaker temperature based on the board temperature information, and a correcting unit corrects the approach notification sound based on the estimated and calculated speaker temperature.
B60Q 5/00 - Agencement ou adaptation des dispositifs de signalisation acoustique
G10K 9/12 - Dispositifs dans lesquels le son est produit par la vibration d'un diaphragme ou un élément analogue, p. ex. cornes de brume, avertisseurs de véhicule ou vibreurs fonctionnant électriquement
In an electromagnetic relay (1), a plunger (2) causes a moving element (3) to advance and retract so that a fixed contact (41) and a movable contact (31) are brought into and out of contact with each other. A solenoid portion (5) advances and retracts the plunger (2). The solenoid portion (5) includes an electromagnetic coil (53), a fixed core (51), and a movable core (52). The fixed core (51) includes a plate portion (511). The plate portion (511) is disposed closer to the front side (Z1) than the electromagnetic coil (53), and is formed to overlap the electromagnetic coil (53) when viewed from an advancing/retracting direction (Z) of the plunger (2). The plate portion (511) and a fixed inside portion (512) of the fixed core (51) are integrally formed. In the fixed core (51), a fixed curved surface (513) is formed between an outer peripheral surface of the fixed inside portion (512) and a back surface of the plate portion (511), the fixed curved surface (513) being curved to protrude on the plunger (2) side.
H01H 50/20 - Éléments mobiles de circuits magnétiques, p. ex. armature mobiles à l'intérieur de la bobine et sensiblement longitudinalement par rapport à l'axe de celle-ciÉléments mobiles de circuits magnétiques, p. ex. armature mobiles coaxialement à la bobine
An electrical device includes a housing, a drive unit arranged inside the housing a substrate arranged inside the housing, and a terminal electrically connecting the substrate with an external portion outside the housing. On the substrate, a circuit driving the drive unit is formed. The terminal includes a terminal protrusion exposed from an inner wall surface of the housing and protruding toward the substrate. The terminal is connected to the substrate at an end portion of the terminal protrusion. The substrate is fixed inside the housing by a first substrate attachment portion and a second substrate attachment portion arranged at a position farther from a connecting portion between the terminal and the substrate than the first substrate attachment portion. The second substrate attachment portion has higher flexibility than the first substrate attachment portion.
A relay control device controls an operation of a relay circuit, which is disposed between a battery and an electric load, and the relay circuit is sealed in a case of a battery pack. The relay circuit includes: a first main relay disposed in a first conduction path which is connected to a first terminal of the battery; a second main relay disposed in a second conduction path which is connected to a second terminal of the battery; and a pre-charge relay connected to the second conduction path in parallel with the second main relay. The relay control device turns on the pre-charge relay, the first main relay, and the second main relay in order, and then turns off the pre-charge relay, the first main relay, and the second main relay in order.
H03K 17/687 - Commutation ou ouverture de porte électronique, c.-à-d. par d'autres moyens que la fermeture et l'ouverture de contacts caractérisée par l'utilisation de composants spécifiés par l'utilisation, comme éléments actifs, de dispositifs à semi-conducteurs les dispositifs étant des transistors à effet de champ
B60L 58/10 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries
H01H 47/00 - Circuits autres que ceux appropriés à une application particulière du relais et prévue pour obtenir une caractéristique de fonctionnement donnée ou pour assurer un courant d'excitation donné
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
This electromagnetic relay (1) comprises a sealing housing (2), stationary contacts (31), a movable element (4) that has movable contacts (41), a shaft (5), a movable core (61), a stationary core (62), a return spring (63), an electromagnetic coil (64), and a sleeve (7). The shaft (5) is inserted in a slidable manner through a through-hole (621) that is formed in the stationary core (62). The sleeve (7) has a support portion (71) that supports the movable core (61) such that the position of the movable core (61) relative to the stationary core (62) is defined, in a state of not being affected by a magnetic attraction force. Formed on the front end portion of the sleeve (7) is a position adjustment portion (11) for adjusting the positional relationship between the stationary core (62) and the support portion (71) when the sleeve (7) is directly or indirectly secured to the stationary core (62).
An electric device includes an electric board having a board hole, a housing accommodating the electric board, a shaft portion disposed in the housing and inserted into the board hole, a recessed portion disposed in the housing, and a bonding portion. The bonding portion is interposed between the shaft portion and the recessed portion and between the recessed portion and a hole peripheral portion of the electric board that forms a peripheral edge of the board hole, and bonds the shaft portion, the hole peripheral portion, and the recessed portion. The board hole has a size such that a radial gap is provided between the hole peripheral portion of the electric board and the shaft portion.
An electric device includes a sounding body, a sound source storing unit storing actual use sound sources, a correction value storing unit, a sound pressure correction unit, and a control unit. The correction value storing unit stores correction values for correcting the actual use sound sources, respectively, so that respective sound pressures of the actual use sound sources reproduced from the sounding body are brought close to respective target values when the actual use sound sources are reproduced by the sounding body. The sound pressure correction unit obtains corrected actual use sound sources by correcting the actual use sound sources with the corresponding correction values. The control unit synthesizes the corrected actual use sound sources and controls the sounding body to reproduce a synthesized actual use sound source from the sounding body.
A notification sound generation device includes a speaker, a controller, a resistor, and a correction unit. The speaker is configured to generate a notification sound to surroundings of a vehicle. The controller is configured to output a sound signal that causes the speaker to generate the notification sound. The resistor has a resistance value corresponding to a correction amount for correcting a sound pressure variation of the speaker or a resistance value corresponding to a sound pressure value of the speaker. The correction unit is configured to correct the sound signal based on a physical quantity correlated with the resistance value of the resistor.
This sound generator comprises a sound generating body (6) for generating a sound, and a housing (1) accommodating the sound generating body, wherein: the housing is configured from a base (2) including a base outer cylinder portion (21) and a separating wall (22) which is provided inside the base outer cylinder portion and to which the sound generating body is joined, a cover (3) covering an opening portion on a front surface side of the base outer cylinder portion, and a case (4) covering an opening portion on a rear surface side of the base outer cylinder portion; the case comprises a case rear surface portion (41) disposed so as to face the opening portion in the base outer cylinder portion, and a case width adjusting portion (42) provided upright from the case rear surface portion; and the case is joined to the base outer cylinder portion at an edge portion of the case width adjusting portion.
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
A wiper drive device includes: a wiring connected to a wiper motor; a drive element configured to apply a voltage to the wiper motor through the wiring by being turned on so as to rotate the wiper motor; a braking element configured to brake the wiper motor by being turned on when the drive element is turned off so as to flow a current corresponding to a rotational energy of the wiper motor; and a determination unit configured to determine that the braking element is abnormal when a time period from when the wiper motor is braked to when an electric potential of the wiring becomes equal to or less than a predetermined threshold potential is longer than a predetermined value which is the time period in case where the braking element is normal.
A housing (11) of this proximity alarm device accommodates a microcomputer (32), a speaker (20), an electric board (30) and a board temperature sensor (36) that are comprised by the proximity alarm device. The board temperature sensor, which is mounted on a sensor mounting surface of the electric board, outputs board temperature information indicating a detected board temperature to the microcomputer. An arithmetic unit (32d) of the microcomputer arithmetically estimates a speaker temperature on the basis of the board temperature information, and a correction unit (32e) corrects an approximate alarm sound on the basis of the arithmetically-estimated speaker temperature.
B60Q 5/00 - Agencement ou adaptation des dispositifs de signalisation acoustique
G10K 9/12 - Dispositifs dans lesquels le son est produit par la vibration d'un diaphragme ou un élément analogue, p. ex. cornes de brume, avertisseurs de véhicule ou vibreurs fonctionnant électriquement
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
51.
ELECTRICAL DEVICE AND MANUFACTURING METHOD FOR ELECTRICAL DEVICE
A workpiece (10A) of this electrical device comprises a sound generator and a control unit. Upon receiving a command signal from a controller (110) to cause a test sound to be outputted by the sound generator, the control unit controls the sound generator so that a marker sound is outputted by the sound generator, before the test sound is to be outputted by the sound generator. The marker sound is a sound for notifying a sound pressure test device (130) of a timing at which to begin measuring the sound pressure of the test sound. The sound pressure test device determines the timing at which to begin measuring the sound pressure of the test sound on the basis of a timing at which a detection unit (120) detected the marker sound, and then begins measuring the sound pressure of the test sound generated by the sound generator at the determined timing.
This electric device comprises a sounding body (30), a sound source recording unit (54) in which a plurality of actually used sound sources are recorded, a correction value recording unit (54), a sound pressure correction unit (120), and control units (S130, S140). The correction value recording unit records a plurality of correction values for correcting the plurality of actually used sound sources so that the sound pressures of the plurality of actually used sound sources played back from the sounding body are each brought closer to a target value when the plurality of actually used sound sources are each reproduced in the sounding body. The sound pressure correction unit determines a plurality of post-correction actually used sound sources obtained by correcting the plurality of actually used sound sources using the corresponding correction values. The control units control the sounding body such that the plurality of post-correction actually used sound sources are combined and reproduced from the sounding body.
This electric device is provided with: an electric board (7) having a board hole (7a); a housing in which to accommodate the electric board; a shaft section (30) arranged inside the housing and inserted through the board hole; a recess (44) arranged inside the housing; and a bonded part (45). The bonded part is interposed between the shaft part and the recess as well as between a hole edge part (73) of the board that forms the edge of the board hole and the recess, and bonds the shaft part, the hole edge part, and the recess. The board hole is sized so as to create a radial clearance between the hole edge part of the electric board and the shaft part.
An electromagnetic relay device includes a mover, a plunger, and a solenoid unit that causes the plunger to reciprocate. The mover includes a movable contact movable to abut onto or separate from a stationary contact. The plunger causes the mover to reciprocate to accordingly cause the movable contact to abut onto or separate from the stationary contact. A heat-resistant member is interposed between the insulator and the mover. The plunger enables indirect abutment onto the mover through the insulator and the heat-resistant member. A heat-resistant temperature of the heat-resistant member is set to be higher than that of the insulator.
A press-fit fixing portion fixes a drive unit and a relay unit by press-fitting a claw portion and the recess portion. A sealing member is provided on an outside of the relay unit and the drive unit. An inner cover forms a sealed space for sealing an arc-extinguishing gas together with the sealing member. An electromagnetic relay is configured to make it possible both an adjustment of a press-fitting amount of the claw portion and the recess portion and an adjustment of the gap between a ceramic insulator at an end of a shaft and a movable element by making each of the relay unit and the drive unit in a manufacturing process to the same state as in when a magnetizing coil is energized.
In an electromagnetic relay device, a mover includes a movable contact movable to abut onto and separate from a stationary contact through a contact region defined between the movable and the stationary contacts. A plunger causes the mover to reciprocate to accordingly cause the movable contact to abut onto or separate from the stationary contact. A solenoid unit of the electromagnetic relay device includes an electromagnetic coil, a movable core, and a support member that slidably supports an outer peripheral surface of a slidable contact portion of the movable core. A movable wall member is located between the slidable contact portion and the contact region. The movable wall member reciprocates together with the plunger. The movable wall member is arranged to occupy a region in the electromagnetic relay device. The region contains at least the slidable contact portion when viewed in the reciprocation direction.
H01H 50/60 - Contact mobile combiné rigidement avec un élément mobile de circuit magnétique
H01H 50/20 - Éléments mobiles de circuits magnétiques, p. ex. armature mobiles à l'intérieur de la bobine et sensiblement longitudinalement par rapport à l'axe de celle-ciÉléments mobiles de circuits magnétiques, p. ex. armature mobiles coaxialement à la bobine
H01H 50/36 - Éléments immobiles de circuit magnétique, p. ex. culasse
A relay controller (6) controls operation of a relay circuit (5) which is provided between a battery (4) and an electric load (2) and is housed in an airtight manner inside a case (31) of a battery pack (3) equipped with the battery (4). The relay circuit is equipped with: a first main relay (511) provided to a first current route (501), which is the current route connected to a first terminal among a first terminal (41) and a second terminal (42), which constitute a pair of terminals in the battery; a second main relay (512) provided to a second current route (502), which is a current route connected to said second terminal; and a pre-charge relay (513) which is connected to the second current route in parallel to the second main relay. The relay controller turns on the pre-charge relay, the first main relay and the second main relay, in this order, and thereafter, turns off the pre-charge relay, the first main relay and the second main relay, in this order.
H01H 9/54 - Circuits non adaptés à une application particulière du dispositif de commutation non prévus ailleurs
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
B60L 50/60 - Propulsion électrique par source d'énergie intérieure au véhicule utilisant de la puissance de propulsion fournie par des batteries ou des piles à combustible utilisant de l'énergie fournie par des batteries
B60L 58/10 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries
H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
H01H 47/00 - Circuits autres que ceux appropriés à une application particulière du relais et prévue pour obtenir une caractéristique de fonctionnement donnée ou pour assurer un courant d'excitation donné
A sound output device includes a waveform output unit and a sounding body. The waveform output unit is configured to output a sound waveform that includes a second waveform generated by a frequency modulation to a first waveform having a desired center frequency. The sounding body is configured to generate a sound corresponding to the sound waveform output from the waveform output unit.
H04R 3/04 - Circuits pour transducteurs pour corriger la fréquence de réponse
B60Q 5/00 - Agencement ou adaptation des dispositifs de signalisation acoustique
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
This electromagnetic relay is provided with: an outer cover (8) which has a box shape, while being provided with an opening in one surface; a base (6) which is arranged within the opening so as to form a storage space (S) together with the outer cover (8); and an adsorbent (100) which adsorbs a siloxane that is generated by bonding of silicon and oxygen. The outer cover (8) and the base (6) form a case; and the external space of the case and the storage space (S) are in communication with each other. The adsorbent (100) is arranged in a path that brings the storage space (S) and the external space of the case, which comprises the outer cover (8) and the base (6), into communication with each other. This electromagnetic relay is able to suppress conduction failure due to penetration of a siloxane without sealing the storage space.
Provided is an electrical device comprising a case (1), a drive unit (63) disposed inside the case (1), a substrate (7) which is disposed inside the case (1) and which has a circuit for driving the drive unit (63) formed thereon, and a terminal (5) that electrically connects the substrate (7) and the outside of the case (1). The terminal (5) comprises a terminal protrusion (51) that protrudes toward the substrate (7) being exposed from the inner wall surface of the case (1), and the terminal (5) is connected to the substrate (7) at the end of the terminal protrusion (51). As a result, the occurrence of defects can be suppressed while minimizing manufacturing costs.
A washer control device includes a computer configured to: monitor a motor current value that is a value of electric current supplied to a washer motor; acquire an energization time for which the electric current is supplied to the washer motor; and calculate a usage amount of a washer fluid from the motor current value and the energization time, and calculate, as a margin of the washer fluid, a remaining amount of the washer fluid in a washer tank based on the usage amount.
This notification sound generation device is provided with: a loudspeaker (21) that generates a notification sound in the surroundings of a vehicle; a control unit (10) that outputs, to the loudspeaker, a sound signal for generating the notification sound; a resistor (22) having a resistance value corresponding to a correction amount for correcting variations in sound pressure of the loudspeaker or a resistance value corresponding to a sound pressure value of the loudspeaker; and a correction unit (S104) that corrects the sound signal on the basis of a physical amount correlating to the resistance value of the resistor.
A load control device includes a power supply terminal connected to a power source via a fuse, a load driver configured to drive loads by electric power supplied from the power source via the fuse and the power supply terminal, a current detector configured to detect load currents that flow through the loads, respectively, and a controller. The controller is configured to calculate a total current that flows through the fuse based on the load currents detected by the current detector, calculate a physical quantity correlating with the total current and related to a connecting member that connects between the fuse and the power supply terminal in response to that the total current is equal to or higher than a predetermined current value, and limit at least one of the load currents in response to that the physical quantity is equal to or greater than a reference value.
An audio output device includes PWM output devices, a weighting unit, a mixer, and an amplifier. The PWM output devices divide audio data into multiple parts including an upper bit part to a lower bit part, and output the multiple parts of the audio data as PWM outputs. The weighting unit weights the PWM outputs from the PWM output devices. The mixer synthesizes the PWM outputs after being weighted. The amplifier supplies an electric current to a sounding body in accordance with a synthesis result by the mixer to cause the sounding body to emit a sound.
A sound generator includes a sound generating body, a base, a protection wall, and an erected wall. The sound generating body includes a diaphragm and a driving portion. The base includes a base tubular portion and a partition wall defining a sound hole. The diaphragm and the partition wall divide an inner space of the base tubular portion into a first space and a second space. The protection wall is disposed away from the partition wall and the erected wall connects between the protection wall and the base tubular portion. The protection wall, the erected wall, and the partition wall defines a sound emission space in communication with the first space through the sound hole. The protection wall and the erected wall define an emission hole through which the sound exits.
Provided is a piezoelectric acoustic component with which the sound pressure difference between a first resonant frequency and an intermediate resonant frequency and the sound pressure difference between the intermediate resonant frequency and a third resonant frequency can be reduced, and furthermore with which a sound pressure of at least 80 dB can be obtained and a frequency range can, to a certain degree, be arbitrarily changed. A first and a second protruding part 14 A and 14 B, which protrude in a direction that follows an outer circumferential part of a circular piezoelectric element 15 and is separated from a first virtual line PL1 along a second virtual line PL2, are formed on a pair of long sides 13 Aa and 13 Ab of a non-fixed portion 13 of a piezoelectric acoustic element. In addition, a first and a second recessed part 14 Ca and 14 Cd and a third and a fourth recessed part 14 Cc and 14 Cb, which protrude toward the first virtual line PL1, are formed adjacent to the first and the second protruding parts 14 A, 14 B on the pair of long sides 13 Aa and 13 Ab of the non-fixed portion 13.
G10K 9/122 - Dispositifs dans lesquels le son est produit par la vibration d'un diaphragme ou un élément analogue, p. ex. cornes de brume, avertisseurs de véhicule ou vibreurs fonctionnant électriquement utilisant des moyens d'entraînement piézo-électriques
67.
SOUND EMITTING DEVICE, MOUNTING STRUCTURE FOR SOUND EMITTING DEVICE, AND VEHICLE WITH SOUND EMITTING DEVICE MOUNTED THERETO
This sound emitting device is provided with a sound emitter (7) for generating sound, and a housing (1) having an inner space with the sound emitter disposed therein and having formed therein a sound-releasing hole (84) opening the inner space to the atmosphere. An upright wall (36) is formed on an outer surface of the housing around the sound-releasing hole. Sound generated by the sound emitter is emitted externally through the sound-releasing hole and the inside of the upright wall. In a mounting structure for the sound emitting device, the sound emitting device is disposed such that the upright wall opposes a vehicle-side sound-releasing hole (101) formed in a vehicle. A vehicle has the sound emitting device mounted thereto by the mounting structure of the sound emitting device.
In the present invention, a press-fit fixing part (30) fixes a drive part (10) and a relay part (2) by press-fitting a claw portion (31) and a recess portion (32). A sealing member (40) is provided outside the relay part (20) and the drive part (10). An inner cover (60) forms a sealed space for sealing arc-extinguishing gas together with the sealing member (40). This electromagnetic relay (1) is configured to cause the relay part (20) and the drive part (10) to respectively have the same states as those during the energization of an excitation coil (11), and adjust a press-fit amount of the claw part (31) and the recess part (32) and adjust a gap (Gs) between an insulator (18) on an end section of a shaft (15) and a mover (23).
An electromagnetic relay (1) comprises a movable element (3), a plunger (2), and a solenoid portion (5) for causing the plunger (2) to advance and retract. The movable element (3) includes a movable contact (31) that comes into and out of contact with a fixed contact (41). The plunger (2) causes the movable element (3) to advance and retract so that the fixed contact (41) and the movable contact (31) come into and out of contact with each other. The solenoid portion (5) includes an electromagnetic coil (53), a movable core (51), and a support member (61) slidably supporting an outer peripheral surface (511) of the movable core (51). A movable wall portion (7) that advances and retracts with the plunger (2) is provided between a sliding-contact portion (54) between the support member (61) and the movable core (51) and a contact portion (11) between the fixed contact (41) and the movable contact (31) in an advance/retract direction (Z) of the plunger (2). The movable wall portion (7) is disposed in a region including at least the sliding-contact portion (54) when viewed from the advance/retract direction (Z).
An electromagnetic relay (1) includes: a moving element (5); a plunger (2); and a solenoid member (4) that causes the plunger (2) to advance and retreat. The moving element (5) has movable contacts (51) that make contact with and separate from fixed contacts (61). The plunger (2) causes the moving element (5) to advance and retreat so that the fixed contacts (61) and the movable contacts (51) make contact with and separate from each other. The plunger (2) is configured so as to abut the moving element (5) via an insulating member (31) and a heat resistant member (32). The heat resistant member (32) is interposed between the insulating member (31) and the moving element (5). The heat resistant temperature of the heat resistant member (32) is higher than that of the insulating member (31).
A power supply circuit for supplying power to an electric load of a vehicle includes a relay and a relay control circuit. The relay is configure to be turned on when enabling the supply of power to the electric load and configured to be turned off when interrupting the supply of power to the electric load. The relay control circuit is configured to turn on the relay when an ignition of the vehicle is on regardless of a state of an operation part that is to be operated by a driver to operate the electric load.
H01H 9/30 - Moyens pour éteindre ou empêcher des arcs entre pièces traversées par le courant
H02H 7/22 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour appareillage de distribution, p. ex. système de barre omnibusCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour dispositifs de commutation
B60L 3/04 - Coupure de l'alimentation en énergie en cas de fausse manœuvre
H01H 47/02 - Circuits autres que ceux appropriés à une application particulière du relais et prévue pour obtenir une caractéristique de fonctionnement donnée ou pour assurer un courant d'excitation donné en vue de modifier le fonctionnement du relais
B60R 16/023 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques pour la transmission de signaux entre des parties ou des sous-systèmes du véhicule
B60R 16/03 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques pour l'alimentation des sous-systèmes du véhicule en énergie électrique
A voice output device comprises a waveform output unit (2) that outputs a voice waveform, and a sounding body (3) that generates voice corresponding to the voice waveform output from the waveform output unit. The waveform output unit outputs a voice waveform including a second waveform generated by frequency-modulating a first waveform having a desired center frequency.
A contact point device includes a first contactor, an oscillation supporting portion, and a second contactor. The first contactor has an outer side surface shaped in a column that surrounds a central axis. The oscillation supporting portion supports the first contactor to allow the central axis to oscillate. The second contactor is disposed opposite to the first contactor. One of the first contactor and the second contactor includes a plurality of first contact portions provided to surround the central axis on a plane perpendicular to the central axis, and the other includes a second contact portion provided to protrude toward a space surrounded by the plurality of the first contact portions. The second contact portion has a contact surface which is a curved surface exposed toward the space to surround the central axis.
An electromagnetic relay includes a movable element, a movable yoke, a fixed yoke, a movable section, and a stopper. The movable element includes a movable contact point. The movable yoke is connected to the movable element to move together with the movable element. The movable section includes a movable core made of an inorganic magnetic material and a shaft made of an inorganic material. The fixed yoke is made of an inorganic magnetic material and disposed between the movable core and the movable yoke. The stopper protrudes from either one of the fixed yoke or the movable section toward the other to contact with the other when the movable section moves toward the fixed yoke. The stopper is integrally formed with the either one of the fixed yoke or the movable section.
When a power failure does not occur, power supply to a first terminal of a wiper motor is performed by a first battery, and power supply to a second terminal of the wiper motor is performed by a second battery. When a power failure occurs in one of the first battery or the second battery, power supply to the wiper motor is performed by the other battery that is not in power failure.
B60S 1/08 - Essuie-glaces ou analogues, p. ex. grattoirs caractérisés par l'entraînement entraînés électriquement
H02P 1/18 - Dispositions de démarrage de moteurs électriques ou de convertisseurs dynamo-électriques pour faire démarrer des machines dynamo- électriques ou des convertisseurs dynamo-électriques pour faire démarrer individuellement un moteur à courant continu
B60R 16/033 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques pour l'alimentation des sous-systèmes du véhicule en énergie électrique caractérisé par l'utilisation de cellules électriques ou de batteries
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
H02P 1/02 - Dispositions de démarrage de moteurs électriques ou de convertisseurs dynamo-électriques Détails
An electromagnetic coil through which current is passed to generate a magnetic flux, a fixed core, a movable core, a magnetic spring disposed between the cores and, and a yoke are provided. The magnetic spring includes a magnetic substance, and biases the movable core in a direction in which the movable core is separated from the fixed core in a Z direction. Additionally, the magnetic spring includes a leaf spring member including the magnetic substance and spirally wound, and a central portion of the magnetic spring is located biased toward one side in the Z direction compared to a peripheral portion of the magnetic spring. When the movable core is attracted to the access position, the magnetic spring is prevented from being deformed to a minimum spring length corresponding to a width of the leaf spring member.
An electromagnetic relay includes: an excitation coil; a movable core; a movable contactor that operates by following the movable core; a fixed contactor that is in contact with the movable contactor when the excitation coil is energized; a base that supports the fixed contactor; a fixed yoke fixed to the base; a moving yoke; a first pressing spring that biases the moving yoke toward the movable contactor; and a second pressing spring that biases the movable contactor such that the movable contactor and the fixed contactor are in contact with each other. The moving yoke is disposed to be in contact with a surface of the movable contactor opposite from the fixed contactor and to oppose the fixed yoke through the movable contactor. The moving yoke is provided to be able to contact and separate from the movable contactor.
An alarm apparatus mounted on a vehicle is provided to output an alarm sound around the vehicle. The alarm apparatus generates a sound wave signal having a frequency that is hardly masked by an environmental sound, and outputs an alarm sound based on the sound wave signal.
A piezoelectric sounding element includes a diaphragm made of metal and a piezoelectric element provided on at least one surface of the diaphragm. A non-fixed portion of the diaphragm includes the pair of long sides facing each other, a pair of short sides, shorter than the long sides, that face each other, and a pair of recesses, provided in the pair of long sides, that protrude so as to approach each other. The piezoelectric element is provided in a region between the pair of recesses of the diaphragm and the contour shapes of the non-fixed portion of the diaphragm and the piezoelectric element are defined so as to be symmetric with respect to a first imaginary line that bisects the pair of short sides and symmetric with respect to a second imaginary line that bisects the pair of long sides.
An electromagnetic relay has a contact device and an electromagnet device. An electromagnetic relay has stators which are a pair of rod-like members, and a mover. The mover may face the side of the stator. A housing supports the stator and accommodates the mover. A yoke is fixed to the housing so as to face the movable facing surface and contains a soft magnetic material.
H01H 1/54 - Moyens pour accroître la pression de contact, empêcher la vibration des contacts, maintenir ensemble les contacts après l'entrée en contact, ou pour ramener les contacts à la position d'ouverture par force magnétique
H01H 9/44 - Moyens pour éteindre ou empêcher des arcs entre pièces traversées par le courant utilisant des aimants de soufflage
H01H 1/58 - Connexions électriques avec ou entre contactsBornes
An ultrasonic wave output apparatus includes at least one ultrasonic wave output unit and a vibration portion. The ultrasonic wave output unit is configured to output ultrasonic waves corresponding to an input signal from a sound wave output surface along a predetermined travel direction. The vibration portion has a vibration surface parallel to the sound wave output surface and set at a distance nλ from the sound wave output surface, where n is an integer of 0 or more and λ is the wavelength of the ultrasonic waves, and is a plate-like member that surrounds the periphery of the ultrasonic wave output unit in directions at right angles to the travel direction, and is configured to transmit vibration produced by the ultrasonic wave output unit to the vibration surface.
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
G10K 11/34 - Procédés ou dispositifs pour transmettre, conduire ou diriger le son pour focaliser ou pour diriger le son, p. ex. balayage par commande électrique de systèmes de transducteurs, p. ex. en dirigeant un faisceau acoustique
An ultrasonic wave output device includes a plurality of ultrasonic wave output units and an overlapping range change unit. The plurality of ultrasonic wave output units are arranged along a horizontal direction in a vehicle. Each of the plurality of ultrasonic wave output units emits an audible sound generated with ultrasonic waves, which have a same phase, to corresponding one of a plurality of sound areas. The plurality of sound areas indicate predetermined areas. The overlapping range change unit changes a range of an overlapping area, which indicates an area on which the plurality of sound areas overlap, in response to an external instruction.
B60Q 5/00 - Agencement ou adaptation des dispositifs de signalisation acoustique
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
A sound generator that generates sound by vibrating a diaphragm includes: a housing including a first space opened to the atmosphere by a sound emission hole and a second space separated from the first space by the diaphragm; and a shield plate disposed in the first space to face the diaphragm while being separated from the diaphragm. When the diaphragm is displaced toward the first space by a pressure difference between the first space and the second space, the diaphragm comes in contact with the shield plate to limit deformation of the diaphragm.
An electromagnetic relay includes a base frame including a main body supporting a fixed element, and a bottom plate having a plate thickness direction in an extending direction orthogonal to a central-axis line direction. An intermediate cover includes a covering plate facing a contact mechanism unit. An outer cover includes a top plate facing the bottom plate across the contact mechanism unit, and a first side plate extending from one end of the top plate and facing the covering plate. A first gap between the covering plate and the bottom plate in the extending direction and a second gap between the covering plate and the top plate in the extending direction are arranged to be substantially symmetric across the covering plate in the extending direction, the first gap and the second gap being on the first side plate.
H01H 9/44 - Moyens pour éteindre ou empêcher des arcs entre pièces traversées par le courant utilisant des aimants de soufflage
H01H 1/54 - Moyens pour accroître la pression de contact, empêcher la vibration des contacts, maintenir ensemble les contacts après l'entrée en contact, ou pour ramener les contacts à la position d'ouverture par force magnétique
An electromagnetic relay includes: an exciting coil; a movable core driven by the exciting coil; a movable contactor having a first movable contact and a second movable contact to operate with the movable core; a first fixed terminal having a first fixed contact with which the first movable contact abuts when the movable contactor is moved by energizing the exciting coil; and a second fixed terminal having a second fixed contact with which the second movable contact abuts when the movable contactor is moved by energizing the exciting coil. An inclination angle of a central axis of the first movable contact with respect to a central axis of the first fixed contact and an inclination angle of a central axis of the second movable contact with respect to a central axis of the second fixed contact are inclined in opposite directions from each other.
An electromagnetic relay includes: a coil; a housing that supports the coil; a non-movable portion supported by the housing and including a fixed core and a fixed magnetic path defining member; and a movable portion provided to be reciprocally movable along a center axis line of the coil according to an energization state of the coil. The movable portion includes a movable core disposed to face the fixed core along the center axis line. The movable portion integrally has a flange portion protruding in a coil radial direction perpendicular to the center axis line to define a separation distance and/or a facing area in a magnetic gap between the fixed magnetic path defining member and the movable core by abutting against the non-movable portion.
H01H 9/00 - Détails de dispositifs de commutation non couverts par
H01H 50/20 - Éléments mobiles de circuits magnétiques, p. ex. armature mobiles à l'intérieur de la bobine et sensiblement longitudinalement par rapport à l'axe de celle-ciÉléments mobiles de circuits magnétiques, p. ex. armature mobiles coaxialement à la bobine
H01H 50/36 - Éléments immobiles de circuit magnétique, p. ex. culasse
H01H 50/00 - Détails des relais électromagnétiques
H01H 50/34 - Moyens de réglage des limites de mouvementMoyens mécaniques de réglage de la force de retour
A position detection system is provided as including (i) a sound wave apparatus in a predetermined designated area and (ii) a detection terminal. The sound wave apparatus transmits a sound wave on which position information including a position of its own is superimposed as a detection sound wave. The detection terminal receives the detection sound wave, acquires the position information superimposed on the received detection sound wave, and stores the acquired position information as information indicating the position of the designated area.
G01S 7/00 - Détails des systèmes correspondant aux groupes , ,
G01S 15/32 - Systèmes pour mesurer la distance uniquement utilisant la transmission d'ondes continues, soit modulées en amplitude, en fréquence ou en phase, soit non modulées
E04H 6/42 - Dispositifs ou dispositions particulières aux garages, non couverts ailleurs, p. ex. dispositifs de blocage, dispositifs de sécurité
E04H 6/18 - Garages pour de nombreux véhicules avec moyens mécaniques pour déplacer ou élever les véhicules avec des moyens de transport uniquement dans le sens vertical ou indifféremment dans le sens vertical et horizontal
G08G 1/14 - Systèmes de commande du trafic pour véhicules routiers indiquant des places libres individuelles dans des parcs de stationnement
G01S 15/42 - Mesure simultanée de la distance et d'autres coordonnées
When a power failure does not occur, power supply to a first terminal of a wiper motor is performed by a first battery, and power supply to a second terminal of the wiper motor is performed by a second battery. When a power failure occurs in one of the first battery or the second battery, power supply to the wiper motor is performed by the other battery that is not in power failure.
B60R 16/03 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques pour l'alimentation des sous-systèmes du véhicule en énergie électrique
B60S 1/08 - Essuie-glaces ou analogues, p. ex. grattoirs caractérisés par l'entraînement entraînés électriquement
H02P 1/18 - Dispositions de démarrage de moteurs électriques ou de convertisseurs dynamo-électriques pour faire démarrer des machines dynamo- électriques ou des convertisseurs dynamo-électriques pour faire démarrer individuellement un moteur à courant continu
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
B60R 16/033 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques pour l'alimentation des sous-systèmes du véhicule en énergie électrique caractérisé par l'utilisation de cellules électriques ou de batteries
H02P 1/02 - Dispositions de démarrage de moteurs électriques ou de convertisseurs dynamo-électriques Détails
A stationary core is in an exciting coil. A yoke covers an outer periphery and an axial end of the exciting coil to form a magnetic circuit and has an opening portion. The movable core faces the stationary core through the opening portion and is attracted toward the stationary core on energization of the exciting coil. A return spring urges the movable core against the attraction direction. A first gap is formed between the stationary core and the movable core on deenergization of the exciting coil. A second gap is formed between the yoke and the movable core on deenergization of the exciting coil. The second gap allows the yoke and the movable core to generate an attractive force therebetween on energization of the exciting coil. The return spring is made of a magnetic material to magnetically bridge the first gap or the second gap.
An overcurrent protection device is to be provided between a power supply and a load circuit including an electric load and an electric wire electrically connected with each other, and includes a switching element, a current detector, a characteristic estimation portion, and a controller. The switching element switches flowing and interrupting of a load current that flows from the power supply to the electric load. The current detector detects the load current. The characteristic estimation portion estimates a thermal characteristic of the electric wire based on the load current detected by the current detector. The controller outputs an overcurrent protection signal for interrupting the load current so as to protect the load circuit from an overcurrent to the switching element based on the thermal characteristic estimated by the characteristic estimation portion and the load current detected by the current detector.
H02H 3/087 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge pour des systèmes à courant continu
H02H 5/04 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions non électriques normales de travail avec ou sans reconnexion sensibles à une température anormale
B60R 16/02 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques
H02H 3/093 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge avec des moyens de temporisation
H02H 3/10 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge sensibles de plus à quelque autre condition électrique anormale
B60R 16/03 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques pour l'alimentation des sous-systèmes du véhicule en énergie électrique
H02H 6/00 - Circuits de protection de sécurité sensibles à des changements indésirables des conditions non électriques normales de travail et utilisant des dispositifs simulateurs de l'appareil protégé, p. ex. utilisant des images thermiques
H02H 7/22 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour appareillage de distribution, p. ex. système de barre omnibusCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour dispositifs de commutation
An electromagnetic relay includes a mobile component movable at time of energization and de-energization of a coil, and a fixed component immovable at the time of energization and de-energization of the coil. A damping space is provided between the mobile component and the fixed component and changes in volume with the movement of the mobile component. A gap provided between the mobile component and the fixed component serves as a passage that allows gas to flow into or out of the damping space when the damping space changes in volume. A size of the gap is set such that a pressure is generated in the damping space to cause a damping force acting on the mobile component when the damping space changes in volume.
A driving support device for a vehicle uses a right speaker and a left speaker for providing audio information useful for driving to the right ear and left ear of a driver. Among the audio information useful for driving, speech guidance with the use of a voice is provided exclusively from the right speaker to the right ear of the driver.
G10L 25/48 - Techniques d'analyse de la parole ou de la voix qui ne se limitent pas à un seul des groupes spécialement adaptées pour un usage particulier
H04S 7/00 - Dispositions pour l'indicationDispositions pour la commande, p. ex. pour la commande de l'équilibrage
H04S 5/00 - Systèmes pseudo-stéréophoniques, p. ex. dans lesquels les signaux d'un canal supplémentaire sont dérivés du signal monophonique par déphasage, retardement ou réverbération
93.
Vehicular annunciation device and method for notifying proximity of a vehicle having an ultrasonic speaker
An electromagnetic alarm device includes a current interrupter to interrupt an electricity supply to a coil on application of a self-excited voltage to oscillate a diaphragm with a moving core to generate a first alarm sound including a fundamental tone at a first predetermined frequency, when a switch is manipulated by an occupant. A proximity notification device includes an ultrasonic speaker to emit an ultrasonic wave, which is generated by implementing ultrasonic modulation on a proximity notification sound, to an outside of the vehicle for notifying a pedestrian of proximity of the vehicle, according to a traveling state of the vehicle and/or when a sensor detects a pedestrian. The ultrasonic speaker emits an ultrasonic wave, which is generated by implementing ultrasonic modulation on a second alarm sound including a fundamental tone at a second frequency, when the switch is manipulated.
A vehicle presence notification apparatus notifies a presence of a vehicle by providing easily-perceivable and less uncomfortable notification sound outside of the vehicle. The vehicle presence notification apparatus includes: a speaker and a controller. The controller is configured to cause the speaker to generate the notification sound that simultaneously has (i) at least one fundamental high frequency, which is easily perceivable, but annoying to human ears; and (ii) at least one auxiliary low frequency, which is less than the at least one fundamental high frequency and has a harmonic relation with the at least one fundamental high frequency.
B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction
G01S 15/00 - Systèmes utilisant la réflexion ou la reradiation d'ondes acoustiques, p. ex. systèmes sonar
B60T 7/16 - Organes d'attaque de la mise en action des freins par déclenchement automatiqueOrganes d'attaque de la mise en action des freins par déclenchement non soumis à la volonté du conducteur ou du passager provoqués par une commande à distance, c.-à-d. moyens de mise en action non montés sur le véhicule
H03B 29/00 - Production de courants et de tensions de bruit
A vehicle presence alert apparatus for alerting a target object to a presence of the vehicle via an alert sound with a frequency in an audible range is disclosed. The vehicle presence alert apparatus includes: a sound emitter configured to (i) cause a carrier wave with a frequency in an ultrasonic range to carry the alert sound, and (ii) emit the carrier wave carrying the alert sound as a radiation wave toward the target object; a sound receiver configured to receive a reflected wave, the reflected wave being generated due to reflection of the radiation wave by the target object; and relative velocity calculation means for calculating a relative velocity of the target object with respect to the vehicle based on a frequency of the radiation wave and a frequency of the reflected wave.
A vehicle existence informing device is configured to inform existence of a vehicle by using a warning sound at a frequency in an audible range. A speaker array includes at least two speakers arranged so that oscillation directions of oscillators of the at least two speakers substantially coincide with each other. The speaker array is configured to radiate a warning sound in air on a carrier wave, which is at a frequency in an ultrasonic range. A phase control unit is configured to advance and delay a phase of a sound wave radiated from one of the at least two speakers with respect to a phase of a sound wave radiated from another of the at least two speakers.
H04B 1/00 - Détails des systèmes de transmission, non couverts par l'un des groupes Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
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