09 - Appareils et instruments scientifiques et électriques
Produits et services
Motor controllers, namely, a downloadable software featuring an algorithm for controlling motors; frequency converters; none of the aforesaid goods relating to the aeronautical field, and in particular helicopters and rotorcraft
2.
Method for controlling a synchronous reluctance electric motor
A method (29) for controlling a synchronous reluctance electric motor (2) is suggested, wherein the electric voltage (7) that is applied to the synchronous reluctance electric motor (2) is controlled, and wherein the control of said electric voltage (7) is based on the electric current (14) in the d-q-reference frame (25, 26).
H02P 21/00 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ
H02P 21/06 - Commande basée sur le flux rotorique impliquant l’utilisation de détecteurs de position ou de vitesse du rotor
H02P 9/10 - Commande s'exerçant sur le circuit d'excitation de la génératrice afin de réduire les effets nuisibles de surcharges ou de phénomènes transitoires, p. ex. application, suppression ou changement brutal de la charge
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
H02P 21/22 - Commande du courant, p. ex. en utilisant une boucle de commande
H02P 25/092 - Convertisseurs spécialement adaptés pour la commande des moteurs à réluctance
A method for controlling an electric motor (such as a synchronous reluctance electric motor) is suggested, in which the torque angle in the d-q-reference frame is at least in part and/or at least at times varied depending on at least one working condition of the electric motor.
Embodiments of the invention provide a variable frequency drive system and a method of controlling a pump driven by a motor with the pump in fluid communication with a fluid system. The drive system and method can provide one or more of the following: a sleep mode, pipe break detection, a line fill mode, an automatic start mode, dry run protection, an electromagnetic interference filter compatible with a ground fault circuit interrupter, two-wire and three-wire and three-phase motor compatibility, a simple start-up process, automatic password protection, a pump out mode, digital input/output terminals, and removable input and output power terminal blocks.
H02P 1/24 - 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 collecteur
H02P 25/04 - Moteurs monophasés, p. ex. moteurs à condensateur
F04D 15/00 - Commande, p. ex. régulation de pompes, d'installations ou de systèmes de pompage
H02H 7/08 - 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 moteurs dynamo-électriques
H02H 1/04 - Dispositions pour prévenir la réponse à des conditions transitoires anormales, p. ex. à la foudre
5.
METHOD FOR CONTROLLING A SYNCHRONOUS RELUCTANCE ELECTRIC MOTOR
A method (29) for controlling a synchronous reluctance electric motor (2) is suggested, wherein the electric voltage (7) that is applied to the synchronous reluctance electric motor (2) is controlled, and wherein the control of said electric voltage (7) is based on the electric current (14) in the d-q-reference frame (25, 26).
H02P 21/00 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ
H02P 21/06 - Commande basée sur le flux rotorique impliquant l’utilisation de détecteurs de position ou de vitesse du rotor
H02P 25/02 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de moteur ou par des détails de structure caractérisés par le type de moteur
A control circuit for driving an electric motor is described in which the control circuit includes a power factor correction circuit. The power factor correction circuit has a DC-link voltage. The control circuit is configured such that the DC-link voltage is set to the higher of the voltage level required by the power factor correction circuit and the voltage level required by the electric motor.
H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions
H02M 1/42 - Circuits ou dispositions pour corriger ou ajuster le facteur de puissance dans les convertisseurs ou les onduleurs
H02P 23/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur
A method for controlling an electric motor (such as a synchronous reluctance electric motor) is suggested, in which thelorque angle in the d-q-reference frame is at least in part and/or at least at times varied depending on at least one working condition of the electric motor.
H02P 21/00 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ
H02P 21/06 - Commande basée sur le flux rotorique impliquant l’utilisation de détecteurs de position ou de vitesse du rotor
H02P 25/02 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de moteur ou par des détails de structure caractérisés par le type de moteur
The present invention relates to a motor controller employing bootstrap-capacitor supplies and in particular to the situation where the bootstrap supplies have to be charged, while the motor controller is connected to a spinning and energized motor. The present invention introduces a method of recharging based on choosing a recharging sequence from a set of recharging sequences, where the choice depends on the state of the connected motor and in particular on the back-EMF voltages of the motor.
H03K 17/567 - Circuits caractérisés par l'utilisation d'au moins deux types de dispositifs à semi-conducteurs, p. ex. BIMOS, dispositifs composites tels que IGBT
H02P 1/02 - Dispositions de démarrage de moteurs électriques ou de convertisseurs dynamo-électriques Détails
H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions
H02P 6/18 - Dispositions de circuits pour détecter la position sans éléments séparés pour détecter la position
The present invention relates to a method for regulating a set of first noise harmonics from a permanent magnet machine operatively connected to a power supply unit, the method comprising the step of injecting a second set of harmonics into a representation of a drive current provided to the electronic device in order to regulate at least part of the noise harmonics of the first set, wherein the harmonics of the second set is/are different from the noise harmonics of the first set. The invention further relates to a power supply unit for performing the method of the present invention.
H02P 25/02 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de moteur ou par des détails de structure caractérisés par le type de moteur
H02P 29/00 - Dispositions pour la régulation ou la commande des moteurs électriques, adaptées à des moteurs à courant alternatif et à courant continu
A cooling system for a power module (or some other power electronics device) is described, the cooling system having a closed flow path for circulating a cooling fluid, the flow path having a pressure that is reduced to below atmospheric pressure. The cooling fluid is circulated along the flow path to provide cooling of the power module. The flow path is delimited from the exterior environment by a space provided between the flow path and the exterior environment, said space being sealed off from the cooling flow path, and said space being sealed off towards the exterior environment. The flow path has a pressure below atmospheric pressure and the space between the flow path and the exterior environment is evacuated and typically has a pressure lower than the pressure in the flow path.
A method for determining the state of an electric motor (2) is suggested, wherein in a first step (14) a preliminary state of said electric motor (2) is determined, characterised in that it is determined (25), whether a refined determination (31, 38, 41) of the state of said electric motor (2) has to be made.
A method for controlling an electric motor (2) is suggested, wherein at least one design limit of the electric motor (2) is complied with by controlling an increase and/or a decrease of the rotational speed of the electric motor (2).
H02P 29/02 - Protection contre les surcharges sans interruption automatique de l’alimentation
H02P 3/18 - Dispositions pour l'arrêt ou le ralentissement de moteurs, génératrices électriques ou de convertisseurs dynamo-électriques pour arrêter ou ralentir individuellement un moteur dynamo-électrique ou un convertisseur dynamo-électrique pour arrêter ou ralentir un moteur à courant alternatif
H02P 23/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur
H02P 21/00 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ
The present invention relates to a method for suppressing one or more harmonic currents in a power supply network, said harmonic currents being generated by one or more loads operationally connected to said power supply network, the method comprising the steps of providing an active power filter comprising an electronic inverter comprising a number of controllable switches, said electronic inverter being operatively connected to an LCL-filter forming part of said active power filter, and providing PWM control signals to each of said controllable switches in response to a particular harmonic current or particular harmonic currents to be suppressed in the power supply network, said PWM control signals varying in response to a value of at least one measured electrical parameter. Moreover, the present invention relates to an active power filter suitable for carrying out the before-mentioned method.
The present invention relates to a motor controller employing bootstrap- capacitor supplies and in particular to the situation where the bootstrap supplies have to be charged, while the motor controller is connected to a spinning and energized motor. The present invention introduces a method of recharging based on choosing a recharging sequence from a set of recharging sequences, where the choice depends on the state of the connected motor and in particular on the back-EMF voltages of the motor.
H03K 17/567 - Circuits caractérisés par l'utilisation d'au moins deux types de dispositifs à semi-conducteurs, p. ex. BIMOS, dispositifs composites tels que IGBT
H02P 1/02 - Dispositions de démarrage de moteurs électriques ou de convertisseurs dynamo-électriques Détails
H03K 17/06 - Modifications pour assurer un état complètement conducteur
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
H02M 1/084 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques utilisant un circuit de commande commun à plusieurs phases d'un système polyphasé
H02P 6/18 - Dispositions de circuits pour détecter la position sans éléments séparés pour détecter la position
09 - Appareils et instruments scientifiques et électriques
Produits et services
Motors and engines except for land vehicles; hydraulic and pneumatic controls for machines, engines or motors; drives for motors; variable speed drives; and servo drives for motors Motor control system comprised of one or more of electric power supply units, electric power controllers, electrical and electronic power controllers, software for controlling motors, electronic speed controllers, inverters, converters, and frequency converters; electric power supply units; electric power controllers; electrical and electronic power controllers; software for controlling motors; electronic speed controllers; electronic control systems for machines; inverters and converters, including frequency converters
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
Produits et services
Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus. Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
Produits et services
Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus. Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
18.
ELECTRIC POWER SUPPLY SYSTEM COMPRISING POWER MODULES COUPLED IN PARALLEL
The present invention relates to an electric power supply system comprising at least two power modules (7, 8, 9, 10) coupled in parallel and comprising a first power module (7) comprising a first control means adapted to control the operation of at least the first power module, and a second power module (8) comprising a second control means adapted to control the operation of at least the second power module and wherein the power modules are configured to operate in a manner coordinated with other power modules, the operation of each power module including switching the power module on and/or off if demand so requires. The present invention further relates to a method for carrying out the present invention.
H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs
09 - Appareils et instruments scientifiques et électriques
Produits et services
Motors other than for land vehicles; electrical engines other than for land vehicles; driving motors other than for land vehicles; servomotors; inverter motors not for land vehicles; gear motors not for land vehicles; linear motors; synchronous motors not for land vehicles; gear motors not for land vehicles; starter motors; electric motors for machines; electric motors for machines with a digital servo drive controller; electric starter motors; inverter motors not for land vehicles; motor starters; soft starters for motors; drives for industrial machines; drives for direct current motors; drives for alternating current motors; drives for motors with speed controls; servo drives for motors; engine parts, namely, motor contacts; high frequency power spindles with high frequency electric converters and power supply units; pneumatic and hydraulic controls and fittings for the aforesaid goods Electric and electronic apparatus and instruments for the control, regulating and testing of drives and motors; electronic power supplies for electric motors; inverters; frequency converters; computer software for controlling motors; operating software for programmable devices; automatic program controls for industrial automation, and operating software therefor; electric control panels; electronic speed controls; control units for regulating start-up electrical motors; electronic controls for motors; electronic servomotor controllers; electronic motor switches for switching off motors; power supplies
20.
Method for detecting a fault in an induction machine
09 - Appareils et instruments scientifiques et électriques
Produits et services
Motors, other than for land vehicles; servo drives for motors, other than for land vehicles; gear drives for machines; variable speed drives for use with fluid pumping systems; drives for motors, other than for land vehicles; drives for machines not computer drives; variable frequency speed drives for motors, other than for land vehicles; and variable speed drives for machines electronic controls for motors, other than for land vehicles; inverters and converters; frequency converters
09 - Appareils et instruments scientifiques et électriques
Produits et services
Software featuring an algorithm for controlling motors; inverters and converters, none of the aforesaid goods relating to the aeronautical field, and in particular helicopters and rotorcraft
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Motors; Electrical engines; Driving motors; Servomotors; Inverter motors; Gear motors; Linear motors; Linear motors; Synchronous motors; Synchronous motors; Motor starters; Soft starters; Drives for industrial machines; Drives for direct current motors; Drives for alternating current motors; Drives with speed controls; Servo drives; Motor contacts; Power supply devices; Controls and fittings for the aforesaid goods, included in class 7. Electric and electronic apparatus and instruments, in particular for the control, regulating and testing of drives and motors; Electronic power supplies, in particular for electric motors; Inverters; Frequency converters; Computer software; Software systems; Software for programmable devices; Program controls for industrial automation, and computer software therefor; Control panels; Speed controls. Technical consultancy and services rendered by engineers or other highly qualified experts in the fields of electric motors and electronic control systems therefor; Documentation of images and/or measurement data in connection with the aforesaid services; Providing and analysis of construction data and technical data, namely measurement data for machines, electric drives, converters, transmission gears and electric motors for machines; Programming of data processing equipment; Computer systems analysis.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Motor controllers, including an algorithm (software) for controlling motors; frequency converters; none of the aforesaid goods relating to the aeronautical field, and in particular helicopters and rotorcraft.
25.
Method for driving a pulse width modulated controller
The present invention relates to a method for generating an electric control signal for controlling one or more switching elements of an inverter for driving an electric machine, such as a motor, the method comprising the steps of providing an electric control signal comprising a control frequency and a corresponding control period, dividing a first control period of said electric control signal into a plurality of switching periods, and providing a first switching PWM pulse within a first switching period of a first control period, and providing a second switching PWM pulse within a second switching period of said first control period, wherein the first switching PWM pulse is a minimum-filtered PWM pulse, and wherein the second switching PWM pulse is a corrected PWM pulse. The present invention further relates to an electronic control signal provided according to the before-mentioned method, and to an electronic control system for providing the before-mentioned method.
G05B 11/28 - Commandes automatiques électriques dans lesquelles le signal de sortie est un train d'impulsions utilisant la modulation de hauteur d'impulsionsCommandes automatiques électriques dans lesquelles le signal de sortie est un train d'impulsions utilisant la modulation de largeur d'impulsions
26.
Electronic device and frequency converter of motor
A frequency converter for driving a motor, includes a circuit board, having at least one first heat-generating element mounted thereon; a heat sink, connected to the at least one first heat-generating element; a fan, facing the heat sink; and a bracket, for positioning the at least one heat-generating element relative to the heat sink and the circuit board. The frequency converter includes a separating member for separating at least one portion of at least one second heat-generating element from the circuit board to prevent the cooling air guided to the at least one second heat-generating element from flowing to the circuit board. The frequency converter includes an airflow guiding member for guiding the cooling air from the fan to the heat sink and the at least one second heat-generating element and a flow guiding gate dispensing more airflow to the region corresponding to the at least one first heat-generating element.
The present invention provides an electronic device, comprising: a circuit board having at least one first heat-generating element and at least one second heat-generating element mounted thereon; a heat sink connected to said at least one first heat-generating element; a fan facing said heat sink; and an airflow guiding member placed between said fan and said heat sink for guiding the cooling air from said fan to said heat sink and said at least one second heat-generating element respectively. Said electronic device may further comprise a separating member for separating a main body of said at least one second heat-generating element from said circuit board, so as to prevent the cooling air guided to said at least one second heat-generating element from flowing to said circuit board; a bracket for separating said at least one first heat-generating element from other elements on said circuit board, so as to thermally insulate between them; and a flow-guiding gate guiding the airflow from said fan, and dispensing more airflow flow through the region on the heat sink corresponding to at least one first heat-generating element.
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
Produits et services
Machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; incubators for eggs. Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus. Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
Produits et services
Machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; incubators for eggs. Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus. Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
30.
METHOD FOR DETECTING AN ERROR IN AN INDUCTION MACHINE
A method for detecting an error in an induction machine is provided, wherein current components are evaluated in a fixed flux, particularly fixed rotor flux coordinate system. In this way, it is supposed to be possible to detect errors in a timely manner. For this purpose, it is provided that a flux-forming current component (ivekd) is subjected to a frequency analysis in the fixed flux, particularly fixed rotor flux coordinate system.
H02H 7/08 - 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 moteurs dynamo-électriques
The present invention relates to a method for generating an electric control signal for controlling one or more switching elements of an inverter for driving an electric machine, such as a motor, the method comprising the steps of providing an electric control signal comprising a control frequency and a corresponding control period, dividing a first control period of said electric control signal into a plurality of switching periods, and providing a first switching PWM pulse within a first switching period of a first control period, and providing a second switching PWM pulse within a second switching period of said first control period, wherein the first switching PWM pulse is a minimum-filtered PWM pulse, and wherein the second switching PWM pulse is a corrected PWM pulse. The present invention further relates to an electronic control signal provided according to the before-mentioned method, and to an electronic control system for providing the before-mentioned method.
H02M 7/5395 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur avec commande automatique de la forme d'onde ou de la fréquence de sortie par modulation de largeur d'impulsions
H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions
32.
ELECTRONIC DEVICE AND FREQUENCY CONVERTER OF MOTOR
The present invention provides an electronic device, comprising: a circuit board having at least one first heat-generating element and at least one second heat-generating element mounted thereon; a heat sink connected to said at least one first heat-generating element; a fan facing said heat sink; and an airflow guiding member placed between said fan and said heat sink for guiding the cooling air from said fan to said heat sink and said at least one second heat-generating element respectively. Said electronic device may further comprise a separating member for separating a main body of said at least one second heat-generating element from said circuit board, so as to prevent the cooling air guided to said at least one second heat-generating element from flowing to said circuit board; a bracket for separating said at least one first heat-generating element from other elements on said circuit board, so as to thermally insulate between them; and a flow-guiding gate guiding the airflow from said fan, and dispensing more airflow flow through the region on the heat sink corresponding to at least one first heat-generating element.
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
H01L 23/467 - Dispositions pour le refroidissement, le chauffage, la ventilation ou la compensation de la température impliquant le transfert de chaleur par des fluides en circulation par une circulation de gaz, p. ex. d'air
H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif
33.
ELECTRONIC DEVICE AND FREQUENCY CONVERTER OF MOTOR
The present invention provides a frequency converter for driving a motor, comprising: a circuit board, having at least one first heat-generating element mounted thereon; a heat sink, connected to the at least one first heat-generating element; a fan, facing the heat sink; and a bracket, for positioning the at least one heat-generating element relative to the heat sink and the circuit board. The frequency converter further comprises: a separating member for separating the at least one portion of the main body of the at least one second heat-generating element from the circuit board, so as to prevent the cooling air guided to the at least one second heat-generating element from flowing to the circuit board; an airflow guiding member placed between the fan and the heat sink, for guiding the cooling air flowed from the fan to the heat sink and the at least one second heat-generating element respectively; and a flow guiding gate guiding the airflow from the fan to the heat sink, and dispensing more airflow to flow through the region corresponding to the at least one first heat-generating element.
H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif
H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
34.
DEVICE FOR ACCOMMODATING AT LEAST ONE ELECTRONIC COMPONENT
The invention relates to a device for accommodating at least one electronic component (21, 22), especially a circuit board or printed circuit. Said device comprises a tubular accommodating body (8) having an inner wall (16) against which a cooling body (18) for the electronic component (21, 22) rests, said electronic body being fixable in the tubular accommodating body (8) by means of a wedge element (70). The aim of the invention is to provide a device which is easy to handle and is lightweight. For this purpose, the wedge element (70) interacts with a holding element (40) which forms, together with the cooling body (18) and the electronic component, a preassembled unit and which can be introduced into the tubular accommodating body (8) and fixed in the tubular accommodating body (8) together with the wedge element (70).
A conveyor (11) is indicated, with a circulating conveyor belt which is designed as a chain belt with a plurality of links interconnected in an articulated manner and is deflected about a first deflecting arrangement (12) at one end of a conveying section and about a second deflecting arrangement (14) at the other end of the conveying section, the conveyor belt (1) having an upper strand (16) and a lower strand (17) between the two deflecting arrangements (12, 14). It is desirable to extend conveying possibilities. For this purpose, a drive (18) acts on the lower strand (17) with in each case a predetermined distance (19, 20) to the two deflecting arrangements (12, 14).
B65G 23/10 - Tambours, rouleaux ou roues disposés entre les extrémités des transporteurs
B65G 17/08 - Transporteurs comportant un élément de traction sans fin, p. ex. une chaîne transmettant le mouvement à une surface porteuse de charges continue ou sensiblement continue, ou à une série de porte-charges individuelsTransporteurs à chaîne sans fin dans lesquels des chaînes constituent la surface portant la charge avec une surface portante formée par une série de maillons, de plaques ou plates-formes reliés entre eux, p. ex. longitudinaux la surface étant formée par l'élément de traction
