Abrégé

A silencer, a compressor and a refrigeration device. The silencer (10) comprises a housing (100) and an air suction member (200). A silencing cavity (110) is provided in the housing (100), the housing (100) being provided with an inlet (120) leading to the silencing cavity (110); the air suction member (200) is connected to the housing (100); one end of the air suction member (200) is provided with a plurality of air inlets (211), while the other end thereof is provided with an air outlet (214), air inlet channels (212) being formed in the directions from each air inlet (211) to the air outlet (214); the multiple air inlet channels (212) each lead to the air outlet (214), the air outlet (214) leading to the inlet (120).

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

The present application relates to the technical field of motor control, and discloses a compressor vibration suppression method and device, a compressor, and a storage medium. The method of the present invention comprises: determining an observed rotating speed by means of a position observer of a compressor; determining an estimated rotating speed according to a quadrature-axis current instruction outputted by a rotating speed loop PI controller of the compressor; determining observed torque on the basis of the observed rotating speed and the estimated rotating speed; and determining a compensation current instruction on the basis of the observed torque, and according to the compensation current instruction, controlling a motor system of the compressor to perform vibration suppression.

Classes IPC  ?

• H02P 21/05 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ spécialement adaptés pour amortir les oscillations des moteurs, p. ex. pour la réduction du pompage
• H02P 21/13 - Commande par observateurs, p. ex. en utilisant des observateurs de Luenberger ou des filtres de Kalman
• H02P 21/22 - Commande du courant, p. ex. en utilisant une boucle de commande
• H02P 21/20 - Estimation du couple
• 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 21/18 - Estimation de la position ou de la vitesse

Abrégé

The present application discloses a compressor control method, apparatus and device, and a storage medium. The compressor control method comprises: acquiring a current vertical current component of a compressor; on the basis of the current vertical current component, calculating an actually observed rotating speed and corresponding actually observed torque by means of a preset mechanical calculation model, and reducing a data feedback error caused by mechanical scaling vibration during low-frequency operation; compensating for the vertical current component of the compressor on the basis of the actually observed torque and a torque compensation coefficient; and driving the operation of the compressor on the basis of the compensated vertical current component within a next operation period.

Classes IPC  ?

• H02P 21/05 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ spécialement adaptés pour amortir les oscillations des moteurs, p. ex. pour la réduction du pompage
• F04B 49/06 - Commande utilisant l'électricité
• F04B 49/20 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes en modifiant la vitesse d'entraînement
• H02P 21/22 - Commande du courant, p. ex. en utilisant une boucle de commande
• H02P 21/13 - Commande par observateurs, p. ex. en utilisant des observateurs de Luenberger ou des filtres de Kalman
• 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

Abrégé

The present application relates to a compressor control method and apparatus, and a device and a storage medium. In the present application, when a compressor operates in an open-loop drive control mode at the initial startup, the feedback rotation speed of the compressor during operation is acquired, and when the feedback rotation speed is at the maximum, the operation mode of the compressor is switched to a closed-loop control mode.

Classes IPC  ?

• F04B 49/06 - Commande utilisant l'électricité

Abrégé

The present application relates to a compressor control method and apparatus, and a device and a storage medium. The method in the present application comprises: compiling statistics on the minimum rotation speed error of a compressor during operation, and a corresponding target phase compensation value; then, on the basis of a mechanical frequency harmonic component and the minimum rotation speed error, generating a mechanical frequency harmonic component amplitude; and on the basis of the mechanical frequency harmonic component amplitude and the target phase compensation value, compensating for a vertical current component of the compressor by means of a preset current compensation model.

Classes IPC  ?

• F04B 49/06 - Commande utilisant l'électricité
• F04B 49/20 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes en modifiant la vitesse d'entraînement
• H02P 23/14 - Estimation ou adaptation des paramètres des moteurs, p. ex. constante de temps du rotor, flux, vitesse, courant ou tension
• H02P 23/04 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur spécialement adaptés pour amortir les oscillations des moteurs, p. ex. pour la réduction du pompage

Abrégé

The present application relates to a compressor control method, apparatus and device, and a storage medium. In the present application, a rotational speed error of a compressor during operation and a torque error corresponding to the rotational speed error are obtained, then a current compensation amount corresponding to the torque error is calculated by means of a preset current compensation model, and a current loop of the compressor is compensated on the basis of the current compensation amount and an initial current corresponding to a preset velocity loop instruction.

Classes IPC  ?

• H02P 23/14 - Estimation ou adaptation des paramètres des moteurs, p. ex. constante de temps du rotor, flux, vitesse, courant ou tension

Abrégé

A silencing structure and a compressor. The silencing structure comprises a body part and a communicating part, wherein the body part has a silencing cavity, and an air suction port and an air outlet which are in communication with the silencing cavity; and the communicating part is arranged in the silencing cavity and comprises an air channel, an air intake end and an air output end of the air channel both being in communication with the silencing cavity, the air intake end of the communicating part being arranged towards the air suction port, and the air output end of the communicating part being arranged towards the air outlet. By means of the silencing structure, the flow resistance of an airflow can be weakened to a great extent, thereby solving the problems of the flow resistance being large, the continuity being poor, and the refrigeration performance being affected when the airflow flows through a silencer.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

The present application provides a refrigerating system and a control method and control apparatus therefor, and a refrigerating device. The refrigerating system comprises: a compressor; a condenser; a freezing evaporator; a refrigeration evaporator; a first piping assembly connecting the compressor, the freezing evaporator and the refrigeration evaporator; a second piping assembly connecting the condenser to the first piping assembly; a third piping assembly connecting the refrigeration evaporator to the second piping assembly; a first three-way valve connected to the first piping assembly and the second piping assembly; a second three-way valve arranged on the first piping assembly; and a third three-way valve arranged on the second piping assembly and connected to the third piping assembly; wherein in a defrosting mode, the first piping assembly is opened, the first three-way valve blocks the second piping assembly from the first piping assembly, and the third three-way valve blocks the second piping assembly from the first piping assembly and blocks the second piping assembly from the third piping assembly. The method can improve the defrosting efficiency, reduce the temperature difference of a freezing compartment, and prevent the temperature of a refrigeration compartment from rising during defrosting.

Classes IPC  ?

• F25D 11/02 - Dispositifs autonomes déplaçables associés à des machines frigorifiques, p. ex. réfrigérateurs ménagers avec compartiments de refroidissement à des températures différentes
• F25B 47/02 - Cycles de dégivrage

Abrégé

Provided in the present application are a refrigeration system and a control method and control device therefor, and a refrigeration apparatus. The refrigeration system comprises: a compressor; a condenser; a freezing evaporator, which cools a freezing chamber; a refrigerating evaporator, which cools a refrigerating chamber; a first pipeline assembly, which brings the compressor, the freezing evaporator and the refrigerating evaporator into communication with one another; a second pipeline assembly, which connects the condenser to the compressor and the freezing evaporator; a third pipeline assembly, which connects the refrigerating evaporator to the second pipeline assembly; a first three-way valve, which is connected to the first pipeline assembly and the second pipeline assembly; a second three-way valve, which is arranged on the first pipeline assembly; and a third three-way valve, which is connected to the second pipeline assembly and the third pipeline assembly, wherein in a defrosting mode, the first pipeline assembly is opened, the first three-way valve blocks the second pipeline assembly from the first pipeline assembly, and the third three-way valve blocks the third pipeline assembly from the second pipeline assembly. The method can prevent the temperature in the refrigerating chamber from rising back up during defrosting, and prevent the temperature of a side plate from being too low due to a low-temperature refrigerant in the condenser.

Classes IPC  ?

• F25D 11/02 - Dispositifs autonomes déplaçables associés à des machines frigorifiques, p. ex. réfrigérateurs ménagers avec compartiments de refroidissement à des températures différentes
• F25D 19/00 - Disposition ou montage des groupes frigorifiques dans les dispositifs
• F25D 21/06 - Enlèvement du givre
• F25D 29/00 - Disposition ou montage de l'appareillage de commande ou de sécurité

Abrégé

A rotor structure (202), a motor (200), and a compressor. The rotor structure (202) comprises: multiple rotor laminations (204), the multiple rotor laminations (204) being stacked. Each rotor lamination (204) is provided with a shaft hole (214) and first mounting slots (2062) and second mounting slots (2064) uniformly disposed around the axis of the shaft hole (214). The shape of the first mounting slots (2062) is different from the shape of the second mounting slots (2064), and the circumferential positions of the first mounting slots (2062) are different from the circumferential positions of the second mounting slot (2064). A first magnet (2082) is disposed in each first mounting slot (2062), and a second magnet (2084) is disposed in each second mounting slot (2064). The diameter of the shaft hole (214) is a fourth radial dimension, the shortest distance between each first mounting slot (2062) and the axis is a fourth dimension, and the range of the ratio between the fourth dimension and the fourth radial dimension is greater than 1 and less than 1.2.

Classes IPC  ?

• H02K 1/22 - Parties tournantes du circuit magnétique
• H02K 1/276 - Aimants encastrés dans le noyau magnétique, p. ex. aimants permanents internes [IPM]

Abrégé

Provided in the embodiments of the present application are a stator structure, an electric motor and a compressor. The stator structure comprises a plurality of stator punching sheets, which are stacked. Each stator punching sheet comprises a stator yoke and a plurality of stator teeth arranged on the stator yoke, wherein the plurality of stator teeth are circumferentially distributed around the axis of a stator iron core, and a winding groove is formed between any two adjacent stator teeth; and the ends of the plurality of stator teeth away from the stator yoke form a first virtual circle having a diameter of a first radial size, and the ends of the winding grooves away from the stator yoke form a second virtual circle having a diameter of a second radial size, the second radial size being greater than half of the first radial size. In the technical solution of the present application, electromagnetic loss of the electric motor can be reduced, thus improving the efficiency, stability and output performance of the electric motor.

Classes IPC  ?

• H02K 1/22 - Parties tournantes du circuit magnétique
• H02K 1/276 - Aimants encastrés dans le noyau magnétique, p. ex. aimants permanents internes [IPM]
• H02K 1/12 - Parties fixes du circuit magnétique

Abrégé

An exhaust assembly, a compressor, and a refrigeration device. The exhaust assembly (100) comprises: a crankcase (102), a plurality of exhaust cylinders (1022) being provided in the crankcase (102), each exhaust cylinder (1022) being in communication with a cylinder surface of the crankcase (102); a plurality of exhaust cylinder covers (104), each exhaust cylinder cover (104) being detachably connected to one exhaust cylinder (1022); and an exhaust tube (106), wherein part of the exhaust tube (106) passes between at least two exhaust covers (104), and part of the exhaust tube (106) extends outwards from one exhaust cylinder cover (104). By means of the arrangement of the plurality of exhaust cylinders (1022) and the exhaust tube (106), gas flows can be mixed, and gases from the two exhaust cylinders (1022) can offset each other, thereby alleviating exhaust pulsation and reducing exhaust noise.

Classes IPC  ?

• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide

Abrégé

A compressor and a refrigeration device are provided. The compressor includes a cylinder body and a piston assembly. The cylinder body has a first air suction hole at a cylinder cover of the cylinder body. The piston has a top dead center located close to the cylinder cover of the cylinder body and a bottom dead center located away from the cylinder cover of the cylinder body in a movement stroke. A distance between the top dead center and the bottom dead center is S. The cylinder body or the piston has a second air suction hole. The second air suction hole is configured to connect to the operating cavity when the piston moves to a predetermined position. The distance between the piston at the predetermined position and the top dead center is L1, where L1>0.5 S.

Classes IPC  ?

• F04B 19/22 - Autres pompes à déplacement positif du type à piston alternatif
• F25B 31/02 - Groupes moto-compresseurs

Abrégé

A refrigeration system and a refrigeration device are provided. The refrigeration system includes a circulation circuit. The circulation circuit includes a main flow path, and a first branch and a second branch that are connected to the main flow path and are connected in parallel. The main flow path is provided with a condenser and a compressor. The condenser has an output end in communication with an end of the first branch and an end of the second branch. The compressor has two suction holes in communication with another end of the first branch and another end of the second branch, respectively. The first branch and the second branch are provided with a first evaporator and a second evaporator, respectively.

Classes IPC  ?

• F25B 41/20 - Disposition des soupapes, p. ex. de soupapes marche-arrêt ou de soupapes de régulation de débit
• F25B 5/02 - Machines, installations ou systèmes à compression, avec plusieurs circuits d'évaporateurs, p. ex. pour faire varier la puissance frigorifique disposés en parallèle

Abrégé

The present application discloses a motor structure and a compressor. The motor structure comprises a stator assembly (1) and a rotor assembly (2). The stator assembly (1) comprises a plurality of stator cores (111) spaced apart in the circumferential direction, the plurality of stator cores (111) define a rotating space, and each stator core (111) comprises a plurality of I-shaped laminations (1110) stacked in the radial direction. The rotor assembly (2) comprises a rotating shaft (21) and rotor discs (22) connected to end portions of the rotating shaft (21), the rotating shaft (21) passes through the rotating space, and the two rotor discs (22) are respectively arranged at two axial ends of the stator assembly (1). The stator core (111) of the motor structure saves approximately 50% of the silicon steel material required compared to a stator core formed by stacking entire laminations, thereby effectively reducing the costs of the motor. The provision of the rotor discs (22) can increase the rotational inertia of the rotor assembly (2), so that low-frequency vibration can be effectively reduced and the motor can operate in a low-speed state.

Classes IPC  ?

• H02K 1/12 - Parties fixes du circuit magnétique

Abrégé

Disclosed in the present application are a reciprocating compressor and a refrigeration apparatus. The reciprocating compressor comprises a crankcase, a crankshaft, a rotor assembly, a piston, a connecting rod and a piston pin, wherein the crankcase comprises a crankshaft seat and a cylinder seat, the crankshaft penetrates the crankshaft seat, and a first friction pair which come into contact with each other are arranged between the crankshaft and the crankshaft seat; the rotor assembly is connected to the crankshaft, and a second friction pair which come into contact with each other are arranged between the rotor assembly and the crankshaft seat; the piston is movably arranged in the cylinder seat; one end of the connecting rod is connected to the crankshaft, the other end of the connecting rod is connected to the piston, and a third friction pair which come into contact with each other are arranged between the connecting rod and the piston; the piston pin penetrates the piston, and a fourth friction pair which come into contact with each other are arranged between the piston pin and the connecting rod; and a lubricating structure is arranged in at least one of the first friction pair, the second friction pair, the third friction pair and the fourth friction pair.

Classes IPC  ?

• F04B 39/02 - Lubrification

Abrégé

Provided in the present application are a heat exchange system and a refrigeration apparatus. The heat exchange system comprises a compressor, a first three-way element, a condenser, a first throttling member, an evaporator, a second three-way element and a second throttling member, wherein the compressor comprises a suction port and a discharge port; the first three-way element comprises a first port, a second port and a third port; the second three-way element comprises a fourth port, a fifth port and a sixth port; when the heat exchange system is in a refrigeration mode, the discharge port and the condenser are in communication with each other by means of the first port and the second port, and the evaporator and the suction port are in communication with each other by means of the fourth port and the fifth port; and when the heat exchange system is in a defrosting mode, the discharge port and the evaporator are in communication with each other by means of the first port and the third port, and the second throttling member and the suction port are in communication with each other by means of the fourth port and the sixth port.

Classes IPC  ?

• F25B 13/00 - Machines, installations ou systèmes à compression, à cycle réversible

Abrégé

A rotor, an electric motor and a compressor. The rotor comprises a rotor core (100), first permanent magnets (200) and second permanent magnets (300). The rotor core (100) is provided with a plurality of first slots (130) and a plurality of second slots (140), which are arranged in a staggered manner in the circumferential direction of the rotor core. A plurality of first permanent magnets (200) are provided, and the number of the first permanent magnets is consistent with that of the first slots (130); the first permanent magnets (200) are correspondingly mounted in the first slots (130); and the magnetizing direction of the first permanent magnets (200) is the radial direction of the rotor core (100). A plurality of second permanent magnets (300) are provided, and the number of the second permanent magnets (300) is consistent with that of the second slots (140); the second permanent magnets (300) are correspondingly mounted in the second slots (140); the magnetizing direction of the second permanent magnets (300) is the tangential direction of the rotor core (100); a plane perpendicular to the magnetizing direction of the second permanent magnets (300) serves as a projection plane; and projections of the second permanent magnets (300) and the first permanent magnets (200), which are adjacent to the second permanent magnets, in the projection plane at least partially overlap.

Classes IPC  ?

• H02K 1/276 - Aimants encastrés dans le noyau magnétique, p. ex. aimants permanents internes [IPM]

Abrégé

A gas-liquid separator and a refrigerating system. The gas-liquid separator (1) comprises: a container (11), which is of an integrated structure; an input pipe (12), one end of the input pipe (12) extending into the container (11), and the input pipe (12) being used for inputting a gas-liquid mixture into the container (11); and at least one functional member, which is mounted in an inner cavity of the container (11), the functional member being used for filtering and/or guiding and/or separating a fluid. After the functional member is mounted in the inner cavity of the container (11), two opposite ends of the container (11) are respectively spun and shrunk inwards in a radial direction to form a gas outlet (111) and a liquid outlet (112). According to the gas-liquid separator (1), the whole container (11) can be designed into an integrated structure, segmented design is not required, the structure of the container (11) is simplified, and the manufacturing process of the container (11) is also simplified.

Classes IPC  ?

• F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquidesDispositions pour la vaporisation des résidus de fluides frigorigènes, p. ex. par la chaleur

Abrégé

Disclosed are a stator lamination (1), a motor, a compressor and a stator lamination arrangement structure. An outer peripheral wall of a stator yoke (11) of the stator lamination (1) comprises two first side walls (15) and two second side walls (16), a first side wall (15) comprising two first planes (151), two inclined planes (153) and a second plane (152); one first plane (151), one inclined plane (153), the second plane (152), and the other inclined plane (153) are connected to the other first plane (151) in sequence, the first planes (151) and the second plane (152) being parallel to each other, the second plane (152) being disposed distant from a rotor hole (14) relative to the first planes (151), and the first planes (151) and the inclined planes (153) being disposed forming an included angle.

Classes IPC  ?

• H02K 1/12 - Parties fixes du circuit magnétique
• H02K 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 15/02 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques

Abrégé

Provided in the present application are a dynamic vibration absorber, a compressor and a refrigeration and heating device. The dynamic vibration absorber (10) comprises: a plurality of vibration absorption structures (11), wherein each vibration absorption structure (11) comprises mass blocks (112) and cantilevers (111) supporting the mass blocks (112), each mass block (112) being integrally formed on one end of one corresponding cantilever (111), and each cantilever (111) being resilient; and a support portion (12), wherein the end of each cantilever (111) away from the mass block (112) is connected to the support portion (12). When the support portion (12) is installed on an object to be subjected to vibration isolation, the mass blocks (112) vibrate to absorb vibration energy from said object so as to reduce the vibration thereof. In addition, according to a frequency range of the frequency of said object, the mass blocks (112) having corresponding masses and the cantilevers (111) having corresponding lengths and widths are provided on the support portion (12), thereby actively reduce vibration of the corresponding frequency range; the vibration reduction effect is better.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

The present application provides a suction muffler, a compressor, and an electrical device. The suction muffler comprises a silencing cavity, a communication channel, an air intake pipe, and an air discharge pipe. The silencing cavity comprises a first chamber and a second chamber. The communication channel is in communication with the first chamber and the second chamber, and the communication channel has a channel inlet and a channel outlet. The air intake pipe has a first inlet and a first outlet. The air discharge pipe has a second inlet and a second outlet. The first outlet is arranged to be directly opposite to and spaced apart from the channel inlet. The channel outlet is arranged to be directly opposite to and spaced apart from the second inlet. In the suction muffler provided by the present application, the first outlet of the air intake pipe is arranged to be directly opposite to the channel inlet of the communication channel, and the channel outlet of the communication channel is arranged to be directly opposite to the second inlet of the air discharge pipe, so as to reduce the resistance of an airflow from the air intake pipe and the communication channel to the air discharge pipe, improving air suction efficiency. Moreover, the first outlet and the channel inlet are spaced apart, and the channel outlet and the second inlet are spaced apart, so as to improve the noise reduction performance of the suction muffler.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 39/16 - FiltrageDéshumidification
• G10K 11/16 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général

Abrégé

A compression cylinder, a compressor and a refrigeration apparatus. The compression cylinder (100) comprises a cylinder body (1) and a piston assembly (2), wherein a first air suction hole (11) is provided at the bottom of a working cavity (1a) of the cylinder body (1), and a second air suction hole (12) is provided in a side wall of the cylinder body. The piston assembly (2) comprises a piston (21) movably provided in the working cavity (1a), and in a movement stroke, the piston (21) has a top dead center located at the bottom of an inner cavity of the cylinder body (1) and a bottom dead center away from the bottom of the inner cavity of the cylinder body (1). The second air suction hole (12) comprises a tapered hole section (12a), and the tapered hole section (12a) is tapered from an outer side of the cylinder body (1) to an inner side thereof. According to the compression cylinder, the tapered hole section (12a) is set to be in a tapered form, so that the aperture of the side of the second air suction hole (12) that is close to an inner wall of the cylinder body can be set within a set range, and the input flow of supplementary air reaches the standard; in addition, the inner diameter of the tapered hole section (12a) is gradually reduced, so that there is no obvious sudden change in the flow resistance, and therefore the flow resistance can be reduced while the air supplement amount is ensured.

Classes IPC  ?

• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide

Abrégé

A compression cylinder, a compressor, and a refrigeration device. The compression cylinder (100) comprises a cylinder body (1), a piston assembly (2), and a cushioning structure (3), the cylinder body (1) comprises a working chamber (1a) provided inside the cylinder body (1), a first air suction hole (1b) is provided at the bottom of the working chamber (1a), and the side wall is provided with a second air suction hole (1c); the piston assembly (2) comprises a piston (21) movably provided in the working chamber (1a), and a movement travel of the piston (21) has a first stop point located at the bottom of the working chamber (1a) and a second stop point away from the bottom of the working chamber; the cushioning structure (3) has a cushioning chamber (3a), the cushioning chamber (3a) is communicated with the second air suction hole (1c) and is communicated with a second air suction inner pipe (4), and the second air suction inner pipe (4) is configured to be in communication with a second air suction outer pipe (230). The compression cylinder (100) has an energy storage function by means of the volume of the cushioning chamber (3a), thereby reducing airflow pulsation in a second air suction flow channel, and improving the overall performance of the compression cylinder (100).

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

The present application discloses a compressor and a refrigeration device. The compressor comprises a cylinder body and a piston assembly, and a first air suction hole is arranged on a cylinder cover of the cylinder body; during movement strokes, a piston is provided with a top dead center located close to the cylinder cover of the cylinder body and a bottom dead center distant from the cylinder cover of the cylinder body, the distance between the top dead center and the bottom dead center is S, a second air suction hole is arranged on the cylinder body or the piston, the second air suction hole is configured to communicate with a working chamber when the piston moves to a set position, and when the piston is at the set position, the distance between the piston and the top dead center is L1, and L1>0.5S.

Classes IPC  ?

• F04B 39/06 - RefroidissementChauffagePrévention du gel
• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide

Abrégé

A refrigeration system (100) and a refrigeration device. The refrigeration system (100) comprises a circulation loop; the circulation loop comprises a main flow path (21), and a first branch (22) and a second branch (23) that are connected to the main flow path (21) and arranged in parallel; a condenser (3) and a compressor (1) are arranged on the main flow path (21); an output end of the condenser (3) is communicated with one end of the first branch (22) and one end of the second branch (23); two air suction holes (1a, 1b) are formed on the compressor (1); the two air suction holes (1a, 1b) of the compressor (1) are correspondingly communicated with the other end of the first branch (22) and the other end of the second branch (23); and the first branch (22) and the second branch (23) are correspondingly provided with a first evaporator (41) and a second evaporator (42).

Classes IPC  ?

• F25B 5/02 - Machines, installations ou systèmes à compression, avec plusieurs circuits d'évaporateurs, p. ex. pour faire varier la puissance frigorifique disposés en parallèle
• F25B 31/02 - Groupes moto-compresseurs

Abrégé

A crankshaft, an inverter compressor and a refrigeration device are provided. The crankshaft has a main shaft, a crank, and a crank shaft at an end of the main shaft through the crank. The main shaft has an oil suction inner chamber, and an oil distribution channel penetrating the crank shaft. An outer wall surface of the main shaft has a first spiral oil groove and a second spiral oil groove. One end of each of the first spiral oil groove and a second spiral oil groove is in communication with the oil suction inner chamber. Another end of the first spiral oil groove and another end of the second spiral oil groove are formed as a first hole channel and a second hole channel in communication with the oil distribution channel, respectively.

Classes IPC  ?

• F04B 53/18 - Lubrification
• F04B 53/00 - Parties constitutives, détails ou accessoires non prévus dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
• F16C 3/14 - Particularités relatives au graissage
• F25B 31/00 - Aménagements des compresseurs

Abrégé

The invention relates to a hermetically encapsulated refrigerant compressor comprising a housing having a bottom part and a cover, the cover being connectable to the bottom part, an electrical connection piece penetrating the housing and a piston pump which is arranged in the housing and can be electrically connected to a control unit via the connection piece. The cover of the housing has a through opening in which the electrical connection piece is arranged. The housing is configured in such a way that, when the housing is open, the piston pump can be inserted into the cover of the housing and is connectable to the electrical connection piece.

Classes IPC  ?

• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
• F04B 35/04 - Pompes à piston spécialement adaptées aux fluides compressibles et caractérisées par les moyens d'entraînement de leurs organes de travail ou par leur combinaison avec les machines motrices ou moteurs qui les entraînent ou bien par leurs adaptations à cet effet, non prévues ailleurs les moyens étant électriques
• F04B 39/14 - Dispositions permettant un montage ou démontage commodes

Abrégé

Disclosed in the present application are a crankshaft, an inverter compressor and a refrigeration device. The crankshaft comprises a main shaft (10), a crank (20), and a crank shaft (30) mounted on one end of the main shaft (10) by means of the crank (20), wherein the main shaft (10) is provided with an oil suction inner cavity (11) and a distribution oil channel (12) that penetrates the crank shaft (30); an outer wall face of the main shaft (10) is provided with a first spiral oil groove (13) and a second spiral oil groove (14) which each have one end in communication with the oil suction inner cavity (11); and the other ends of the first spiral oil groove (13) and the other end of the second spiral oil groove (14) are respectively provided with a first hole channel (151) and a second hole channel (162) which are in communication with the distribution oil channel (12), the two hole channels having an approximately equal deflection depth and outlet area. In this way, when the crankshaft is rotated forward or reversely at the same speed, it is possible to ensure an approximately equal supply of lubricating oil through the two spiral oil grooves, thus achieving an approximately equal amount of oil supply to the crankshaft during forward and reverse rotation at the same speed.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 39/02 - Lubrification
• F16C 3/14 - Particularités relatives au graissage

Abrégé

An air suction silencer, a compressor, and a household appliance. The air suction silencer (10) comprises a housing (200) and a partitioning assembly (300); the housing (200) is provided with a silencing cavity (202); the partitioning assembly (300) is provided in the silencing cavity (202) and partitions the silencing cavity (202) into a first cavity body (202a) and a second cavity body (202b), the partitioning assembly (300) is provided with a first flow channel (302) and second flow channels (304), and the first flow channel (302) and the second flow channels (304) are all communicated with the first cavity body (202a) and the second cavity body (202b); a height difference exists between the end surface of the first flow channel (302) away from the second cavity (202b) and the end surfaces of the second flow channels (304) away from the second cavity (202b), and/or a height difference exists between the end surface of the first flow channel (302) away from the first cavity (202a) and the end surfaces of the second flow channels (304) away from the first cavity (202a).

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

A cylinder assembly and a compressor having the cylinder assembly are provided. The cylinder assembly has a cylinder body, a valve assembly, a cylinder cover, a muffler, and a pressing cap. The valve assembly is arranged in the cylinder body. A sealing ring is arranged between the cylinder cover and the valve assembly. The muffler and the cylinder cover are integrally formed. The pressing cap is connected to the cylinder body. The cylinder cover is located between the cylinder body and the pressing cap, such that the pressing cap fixes the cylinder cover on the cylinder body.

Classes IPC  ?

• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 39/10 - Adaptation ou aménagement des organes de distribution

Abrégé

A connecting structure, an exhaust silencer, a silencer and a compressor are provided. The connecting structure has a connecting housing and an exhaust pipe assembly. The connecting housing has a silencing chamber and a sealing portion. One end of the exhaust pipe assembly passes through the sealing portion and extends into the silencing chamber. Another end of the exhaust pipe assembly is arranged outside the connecting housing. Thus, the silencing chamber is in communication with an outside space of the connecting housing through the exhaust pipe assembly.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F01N 1/08 - Silencieux caractérisés par leur principe de fonctionnement réduisant l'énergie des gaz évacués par étranglement ou tourbillon
• F01N 13/08 - Autres aménagements ou adaptations des tubulures d'échappement
• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
• F04B 39/14 - Dispositions permettant un montage ou démontage commodes
• F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles

Abrégé

A refrigerant compressor (1) having a crankshaft (3) arranged in a crankshaft casing (2), a cylinder (5), a connecting rod (4) and a piston (6), the crankshaft (3) having a crankpin (7) and the piston (6) having a gudgeon pin bore (8), and the crankshaft casing (2) having a cylinder recess (10) in which the cylinder (5) is received, at least partially, in a force-fitting and/or form-fitting manner. The cylinder recess (10) has an opening (12) for the connecting rod (4) to pass through the crankshaft casing (2), the connecting rod (4) having an upper connecting rod eye (13) and a lower connecting rod eye (14), the connecting rod (4) being connected to the piston (6) by means of a piston pin (9) inserted into the gudgeon pin bore (8) and the upper connecting rod eye (13), and the lower connecting rod eye (14) being connected to the crankpin (7). The cylinder (5) has a continuous cylinder internal wall (15) and the connecting rod (4) is a one-piece connecting rod (4).

Classes IPC  ?

• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
• F04B 39/14 - Dispositions permettant un montage ou démontage commodes

Abrégé

A suction muffler is provided. The suction muffler has a housing assembly, at least one partition plate and a first tube. The housing assembly defines a cavity and has a suction port and a discharge port. The partition plate is provided in the cavity to divide the cavity into at least two muffler cavities. The two muffler cavities each has a first muffler cavity and a second muffler cavity. The partition plate defines a penetrating hole to communicate the first muffler cavity with the second muffler cavity. The suction port corresponds to the first muffler cavity. The first tube has a portion provided in the first muffler cavity. One end of the first tube is in communication with the suction port. The other end of the first tube passes through the partition plate and is in communication with the second muffler cavity.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

A crankshaft is provided. The crankshaft has a first shaft, a second shaft and a first crank arm. A first oil passage is formed in the first shaft along an axis direction of the shaft. A second oil passage is formed in the second shaft along an axis direction of the shaft. The first crank arm is configured to be connected between the first shaft and the second shaft. The first crank arm is provided with a third oil passage. The third oil passage is configured to communicate the first oil passage and the second oil passage. The second shaft is eccentrically provided relative to the axis of the first shaft. A compressor having the crankshaft and a refrigeration device having the compressor are also provided.

Classes IPC  ?

• F16C 3/14 - Particularités relatives au graissage
• F04B 35/04 - Pompes à piston spécialement adaptées aux fluides compressibles et caractérisées par les moyens d'entraînement de leurs organes de travail ou par leur combinaison avec les machines motrices ou moteurs qui les entraînent ou bien par leurs adaptations à cet effet, non prévues ailleurs les moyens étant électriques
• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 53/00 - Parties constitutives, détails ou accessoires non prévus dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
• F04B 53/18 - Lubrification

Abrégé

A suction muffler. The suction muffler comprises a housing assembly (1), at least one partition plate (4), and a first pipeline (5); the housing assembly (1) is internally provided with a cavity, and the housing assembly (1) is provided with a suction port (2) and an exhaust port (3); the at least one partition plate (4) is provided in the cavity to partition the cavity into at least two muffling cavities, the at least two muffling cavities comprise a first muffling cavity (13) and a second muffling cavity (14), the at least one partition plate (4) is provided with a through hole (41) to connecting the first muffling cavity (13) and the second muffling cavity (14), and the suction port (2) corresponds to the first muffling cavity (13); at least part of the first pipeline (5) is provided in the first muffling cavity (13), one end of the first pipeline (5) is communicated with the suction port (2), and the other end of the first pipeline (5) passes through the at least one partition plate (4) to be communicated with the second muffler cavity (14).

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

A piston assembly (1), a compressor assembly, and a refrigeration device (3). The piston assembly (1) comprises: a piston (102); and a valve sheet (106), which is disposed at one end of the piston (102), the valve sheet (106) comprising a valve tongue (112) and a valve sheet body (110) provided with a mounting port (108). The valve tongue (112) is connected to the valve sheet body (110), and at least part of the valve tongue (112) is disposed within the mounting port (108), a contour of at least part of the mounting port (108) matches a circumferential contour of one end of the piston (102) near the valve sheet (106). In the piston assembly (1), because the valve sheet (106) is disposed in the mounting port (108), the contour of the mounting port (108) matches the circumferential contour of the end of the piston (102) near the valve sheet (106), and the piston assembly (1) thus reduces noise generated by fluid excitation of the valve sheet (106). For the refrigeration device (3), a cooperation groove is provided on an end surface of the piston (102) near the valve sheet (106), so that a gap between the piston (102) and the valve sheet (106) can be reduced, and thus improving the refrigeration capacity, and thereby achieving the dual objective of improving refrigeration performance and reducing noise.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 53/10 - ClapetsAgencement des clapets

Abrégé

A piston assembly for a compressor assembly is provided. The piston assembly has a piston and a valve sheet. The valve sheet is arranged at an end of the piston. The valve sheet has a valve sheet body with a mounting port, and a valve tongue connected to the valve sheet body. At least part of the valve tongue is arranged in the mounting port. At least part of a contour of the mounting port matches with a circumferential contour of one end of the piston close to the valve sheet.

Classes IPC  ?

• F04B 39/10 - Adaptation ou aménagement des organes de distribution
• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

Provided is a compressor structure (1), comprising: a housing (11), with an accommodating chamber (110) being formed within the housing (11); an electric motor (12) arranged in the accommodating chamber (110), with two axial ends of the electric motor (12) being respectively provided with a winding (121); and a crankcase (13) arranged in the accommodating chamber (110), the crankcase (13) being arranged at one end of the electric motor (12), and the crankcase (13) being internally provided with a crankshaft which is in transmission connection with the electric motor (12), wherein the winding (121) at the end of the electric motor (12) close to the crankcase (13) is provided with a recess portion (1211) which is recessed towards the other end in the axial direction of the electric motor (12), and part of the crankcase (13) is arranged in a space enclosed by the recess portion (1211). Further provided is a refrigeration device. By means of the compressor structure, part of the crankcase (13) is arranged in the space enclosed by the recess portion (1211) to allow the whole crankcase (13) to be sunk, such that the size of the whole compressor structure in the axial direction of the electric motor can be reduced without affecting the sizes of the crankcase (13) and the electric motor (12) inside, which facilitates the miniaturization of the compressor.

Classes IPC  ?

• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

Disclosed are a buffer structure and a refrigeration device. The buffer structure (1) comprises: a vibration reduction body (12), wherein a clamping portion (122) is formed at one end of the vibration reduction body (12), and a buffer hole (124) is provided in the vibration reduction body (12) and penetrates the two end faces thereof; and at least one transverse vibration reduction hole (14), which is provided in the vibration reduction body (12) and each transverse vibration reduction hole (14) is provided at one side of the buffer hole (124) in the radial direction of the buffer hole (124). By means of the structure, vibration perpendicular to the axis direction of the transverse vibration reduction hole (14) is weakened, such that the transmission of transverse vibration from an object to be buffered to a device where a connecting member (26) is connected is reduced, and the transverse vibration reduction performance is improved.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

A gas cylinder assembly and a compressor having said gas cylinder assembly. The gas cylinder assembly comprises a cylinder body (1), a valve assembly (2), a cylinder cover (3), a noise muffler (8), and a press cover (5); the valve assembly (2) is arranged within the cylinder body (1), a seal ring (4) is provided between the cylinder cover (3) and the valve assembly (2), the noise muffler (8) and the cylinder cover (3) are integrally formed, the press cover (5) is connected to the cylinder body (1), and the cylinder cover (3) is located between the cylinder body (1) and the press cover (5), so as to facilitate the press cover (5) in fixing the cylinder cover (3) onto the cylinder body (1). The present gas cylinder assembly has unique advantages such as a good sealing effect, a low number of parts, low manufacturing difficulty and costs, and no deformation of the cylinder cover and the cylinder body.

Classes IPC  ?

• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide

Abrégé

The invention relates to a hermetically encapsulated refrigerant compressor (1) comprising a cylinder (3), a piston (4) arranged in the cylinder (3), said piston having a piston axis (4a), a valve plate (5) having a suction valve opening (6) and a discharge valve (7), a cylinder head (8) on the side of the valve plate (5) facing away from the cylinder (3), a cylinder head cover (10) which has an outlet for compressed refrigerant, and a muffler (12). A connecting piece (11) is arranged on the side of the valve plate (5) facing away from the cylinder (3) as an inlet for refrigerant to be suctioned in, wherein the connecting piece (11) has a first end (11a) that is arranged on the suction valve opening (6) and a second end (11b). The connecting piece (11) is inclined relative to the piston axis (4a) at a maximum inclination angle (α) of between -45° and +45°. The muffler (12) has a housing (12a) having an intake opening (12b) into which the second end (11b) of the connecting piece (11) opens.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide

Abrégé

The invention relates to a hermetically encapsulated refrigerant compressor (100) comprising: a housing (10) having a lower part (11) and a cover (12), wherein the cover (12) can be connected to the lower part (11); an electrical connector (30) that passes through the housing (10); and a piston pump (40) that is located in the housing (10) and can be electrically connected to a control unit via the connector (30). The cover (12) of the housing (10) has a through-opening (12a) in which the electrical connector (30) is located. The housing (10) is designed such that, when the housing (10) is open, the piston pump (40) can be inserted into the cover (12) of the housing (10) and connected to the electrical connector (30).

Classes IPC  ?

• F04B 35/04 - Pompes à piston spécialement adaptées aux fluides compressibles et caractérisées par les moyens d'entraînement de leurs organes de travail ou par leur combinaison avec les machines motrices ou moteurs qui les entraînent ou bien par leurs adaptations à cet effet, non prévues ailleurs les moyens étant électriques
• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
• F04B 39/14 - Dispositions permettant un montage ou démontage commodes

Abrégé

A crankshaft (100), comprising a first shaft (110), a second shaft (130), and a first crank arm (120). A first oil passage (111) is formed in the first shaft (110) along an axis direction thereof; a second oil passage (131) is formed in the second shaft (130) along an axis direction thereof; the first crank arm (120) is configured to be connected between the first shaft (110) and the second shaft (130), the first crank arm (120) is provided with a third oil passage (121), and the third oil passage (121) is configured communicate the first oil passage (111) and the second oil passage (131); the second shaft (130) is eccentrically provided relative to the axis of the first shaft (110). According to actual displacement requirements of a compressor, the relative position of the second shaft (130) and the first shaft (110) can be adjusted to adjust the eccentricity, so that the crankshaft can adapt to displacement requirements of different compressors, and the crankshaft is easy to process and manufacture. Also disclosed are the compressor comprising the crankshaft, and a refrigeration device comprising the compressor.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 35/04 - Pompes à piston spécialement adaptées aux fluides compressibles et caractérisées par les moyens d'entraînement de leurs organes de travail ou par leur combinaison avec les machines motrices ou moteurs qui les entraînent ou bien par leurs adaptations à cet effet, non prévues ailleurs les moyens étant électriques
• F16C 3/14 - Particularités relatives au graissage

Abrégé

A crankshaft (100), comprising: a first shaft (110), a second shaft (130), a first crank arm (120), a second crank arm (140) and a recess portion (121). The first crank arm (120) is provided at one end of the first shaft (110), a first oil channel (111) is provided on the first crank arm (120), and the first oil channel (111) penetrates the first shaft (110); the second crank arm (140) is provided at one end of the second shaft (130), a second oil channel (131) is provided on the second crank arm (140), and the second oil channel (131) penetrates the second shaft (130); and the recess portion (121) is provided on an end surface of the first crank arm (120) far from the first shaft (110) or on an end surface of the second crank arm (140) far from the second shaft (130), the second crank arm (140) being used for connecting to the first crank arm (120), such that the recess portion (121) communicates with the first oil channel (111) and the second oil channel (131). The recess portion (121) stores lubricating oil and supplies oil to the second oil channel (131), which may improve the oil supply effect. The relative positions of the second shaft (130) and the first shaft (110) may be adjusted according to actual displacement requirements of a compressor to thereby adjust the eccentricity, such that the crankshaft may adapt to the displacement requirements of different compressors and is easy to machine and manufacture. The present invention also relates to a compressor that comprises a crankshaft and a refrigeration device that comprises a compressor.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 39/02 - Lubrification
• F04B 35/04 - Pompes à piston spécialement adaptées aux fluides compressibles et caractérisées par les moyens d'entraînement de leurs organes de travail ou par leur combinaison avec les machines motrices ou moteurs qui les entraînent ou bien par leurs adaptations à cet effet, non prévues ailleurs les moyens étant électriques
• F16C 3/14 - Particularités relatives au graissage
• F25B 1/02 - Machines, installations ou systèmes à compression à cycle irréversible à compresseur alternatif
• F25B 31/00 - Aménagements des compresseurs

Abrégé

A connecting structure, an exhaust silencer, an exhaust, and a compressor, the connecting structure comprising: a connecting shell (10), a silencing cavity (12) being formed in the connecting shell (10), and a sealing part (14) being formed in the silencing cavity (12); and an exhaust pipe assembly (20), the exhaust pipe assembly (20) being detachably connected to the sealing part (14), one end of the exhaust pipe assembly (20) passing through the sealing part (14) and extending into the silencing cavity (12), and the other end of the exhaust pipe assembly (20) being disposed outside the connecting shell (10) such that the silencing cavity (12) and the outside space of the connecting shell (10) are connected by means of the exhaust pipe assembly (20). By means of the present technical solution, the exhaust pipe assembly (20) and the sealing part (14) are detachably connected, enabling the use of different materials whilst meeting the usage requirements of the connecting shell (10) and the exhaust pipe (22), reducing material costs.

Classes IPC  ?

• F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

A crankshaft assembly, a compressor and a refrigeration device are provided. The crankshaft assembly has an eccentric shaft component, a spindle component and a main screw oil pump. The eccentric shaft component has an eccentric cavity, and the spindle component has a first cavity communicated with the eccentric cavity. A first through-hole and a second through-hole in a first spindle are each communicated with the first cavity. An outer surface of the first spindle is provided with a first spiral oil groove connecting the first through-hole and the second through-hole. An outer surface of the main screw oil pump is provided with a second spiral oil groove along its length direction, and a spiral direction of the second spiral oil groove is opposite that of the first spiral oil groove.

Classes IPC  ?

• F01C 1/24 - "Machines" ou machines motrices à piston rotatif du type à contre-engrènement, c.-à-d. avec mouvement en sens opposé des organes coopérants aux points d'engagement
• F03C 2/00 - Moteurs à piston rotatif
• F03C 4/00 - Moteurs à piston oscillant
• F04C 15/00 - Parties constitutives, détails ou accessoires des "machines", des pompes ou installations de pompage non couverts par les groupes
• F04C 2/00 - Machines ou pompes à piston rotatif
• F04C 2/16 - Machines ou pompes à piston rotatif du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis

Abrégé

A silencing device and a compressor having the silencing device are disclosed. The silencing device has a housing. An air inlet and an air outlet are provided to the housing. An air flow channel is provided in the housing for allowing air communication between the air inlet and the air outlet. An oil hole is provided in the housing for discharging oil from the housing. An oil guide part is arranged on the outside of the housing and at a position downstream of the oil hole in the moving direction of the oil, such that the oil drips from the housing after flowing from the oil hole to the oil guide part.

Classes IPC  ?

• F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage
• F04D 29/063 - Lubrification spécialement adaptée aux pompes pour fluides compressibles

Abrégé

Disclosed are a pump body assembly (100) for a reciprocating-type compressor, and a reciprocating-type compressor (200) with the pump body assembly (100). The pump body assembly (100) comprises a crankcase (1), a piston (2), a crankshaft (3), and a connection rod (4), wherein a first end (41) of the connection rod (4) defines a first hole (411), and a second end (42) thereof defines a second hole (421); the crankcase (1) is provided with a first plane (10), and the first plane (10) passes through the central axis (120a) of an air cylinder bore, and is perpendicular to the central axis (110a) of a crankshaft hole; the connection rod (4) is provided with a second plane (40), and the second plane (40) passes through the center of the first hole (411) and the center of the second hole (421), and is perpendicular to both the central axis of the first hole (411) and the central axis of the second hole (421); and the first plane (10) and the second plane (40) are parallel to each other or overlap each other. The pump body assembly (100) has a stable structure, and can be run in a reliable manner.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide

Abrégé

Disclosed are a silencing device and a compressor. The silencing device comprises: a housing (1), wherein an air inlet (10) and an air outlet (12) are provided on the housing (1), the housing (1) is internally provided with an air flow channel (14), and the air inlet (10) and the air outlet (12) are in communication with each other by means of the air flow channel (14); an oil hole (2) provided in the housing (1) for discharging oil from the housing (1); and an oil guide part (3) arranged on the housing (1) and located outside the housing (1), wherein the oil guide part (3) is arranged below the oil hole (2) in the direction of the dripping of oil, such that the oil drips after flowing from the oil hole (2) to the oil guide part (3). The oil guide part (3) increases the surface adsorption force of the oil, such that the oil can better converge; and when reaching a certain gravity, a converged oil drop quickly drips into an oil pool of a compressor, such that the oil discharge amount of the compressor can be effectively reduced, and stable internal oil circulation is ensured, thereby facilitating a reduction in the noise of the compressor.

Classes IPC  ?

• F04C 29/06 - Étouffement du bruit
• F04C 29/02 - LubrificationSéparation du lubrifiant
• F04B 53/04 - Drainage

Abrégé

A plug assembly includes a plug body defining at least one mounting through hole and at least one a connecting post passing through the mounting through hole. Each connecting post has a first end located in the mounting through hole to be configured for plug-in connection with a terminal of a compressor, and a second end extending beyond the mounting through hole to be configured for connection with a control board. A compressor starter can include the plug assembly. A compressor assembly can include the compressor starter.

Classes IPC  ?

• F16B 19/00 - Chevilles à têteGoupilles, y compris celles réalisées par déformation d'élémentsRivets
• F16B 13/08 - Chevilles ou autres dispositifs fixés à des parois ou autres emplacements par insertion dans des trous préparés à cet effet avec parties s'agrippant dans le trou ou derrière la paroi après insertion les parties s'agrippant étant distinctes du dispositif et amenées dans leur position finale sans opération manuelle ultérieure
• F16B 19/02 - Chevilles ou manchons pour positionner les parties de machines, p. ex. goupilles coniques à encoche, goupilles de montage, manchons, bagues excentriques d'ajustement
• F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
• H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes

Abrégé

An eccentric sleeve for a crankshaft of a compressor, a crankshaft, a crankshaft assembly, and a compressor are provided. The crankshaft has a main shaft, a counterbalance and an eccentric shaft. The main shaft and the eccentric shaft are provided at two sides of the counterbalance and arranged eccentrically. The main shaft is internally provided with a main lubrication oil passage. An outer circumferential wall of the eccentric shaft is provided with an oil leakage hole in fluid communication with the main lubrication oil passage. The eccentric sleeve is fitted over the eccentric shaft. An outer circumferential wall of the eccentric sleeve is provided with a shaft flow hole extending through the outer circumferential wall in a thickness direction of the eccentric sleeve.

Classes IPC  ?

• F02B 75/00 - Autres moteurs, p. ex. moteurs monocylindriques
• F16J 1/14 - Liaison avec les organes d'entraînement avec les bielles, c.-à-d. liaisons articulées à pivotement
• F04B 49/12 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes en modifiant la course des organes de travail
• F04B 39/02 - Lubrification
• F02B 75/04 - Moteurs avec distances variables entre les pistons et les culasses aux positions du point mort haut
• F16J 7/00 - Tiges de piston, c.-à-d. tiges liées rigidement au piston

Abrégé

A crankshaft component (100), a compressor, and a refrigeration device. The crankshaft component (100) comprises an eccentric shaft part (10), a main shaft part (20), and a main spiral pump (40). The eccentric shaft part (10) comprises an eccentric cavity (110); the main shaft part (20) has a first cavity (210); the first cavity (210) is communicated with the eccentric cavity (110); a first through hole (211) and a second through hole (212) on a first main shaft (21) are respectively communicated with the first cavity (210); the outer surface of the first main shaft (21) is provided with a first spiral oil groove (213) connected to the first through hole (211) and the second through hole (212); the outer surface of the main spiral pump (40) is provided, along the length direction thereof, with a second spiral oil groove (41) having an opposite direction of turning with the first spiral oil groove (213).

Classes IPC  ?

• F04B 39/02 - Lubrification
• F16C 3/14 - Particularités relatives au graissage
• F16C 3/10 - Vilebrequins formés de plusieurs parties, p. ex. réunis par soudure

Abrégé

Disclosed are a rotor for an electric motor, an electric motor, and a compressor. The rotor includes: a rotor core (1), provided with a shaft hole (11) and four magnet grooves (12); and four permanent magnets (2), disposed in corresponding magnet grooves, each permanent magnet including a first surface (21) and a second surface (22). When viewed from a projection surface, the first surface has an arc segment (211), and the second surface has a plurality of straight segments connected in sequence. A thickness H of each permanent magnet on a corresponding magnetic pole centerline, a length L of the second surface projected on the projection surface, and a radius R of the rotor core satisfying the following relationships: 0.24≤H/R≤0.26 and 1.07≤L/R≤1.11.

Classes IPC  ?

• H02K 1/27 - Noyaux rotoriques à aimants permanents
• H02K 1/28 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor
• F25B 31/02 - Groupes moto-compresseurs

Abrégé

A cylinder head (100) of a piston type compressor and a piston type compressor, the cylinder head (100) comprising a metal outer cover (1) and an isolation inner cover (3), wherein the metal outer cover (1) covers the outside of the isolation inner cover (3), and the isolation inner cover (3) is made of a heat insulation material which has good heat insulation performance, such that the temperature of gas suctioned during the working process by the compressor having the cylinder head (100) may not be excessively high. The present invention has a stable refrigerating capability and a higher energy efficiency ratio.

Classes IPC  ?

• F04C 29/06 - Étouffement du bruit
• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide

Abrégé

A plug assembly (100), a compressor starter (200), and a compressor assembly (300). The plug assembly (100) comprises a plug body (1) and at least one connecting column (2). The plug body (1) is provided thereon with at least one mounting through hole (10). The connecting column (2) runs through the mounting through hole (10). One end of each connecting column (2) is arranged within the mounting through hole (10) and is suitable for being plugged and connected to a cable connecting end (2011) of a compressor (201); the other end of each connecting column (2) extends beyond the mounting through hole (10) and is suitable for being connected to a control board (101).

Classes IPC  ?

• H01R 13/04 - Broches ou lames destinées à coopérer avec des alvéoles
• H01R 13/46 - SoclesBoîtiers
• H01R 31/06 - Pièces intermédiaires pour joindre deux pièces de couplage, p. ex. adaptateur

Abrégé

An eccentric bushing (2) for a crankshaft of a compressor, a crankshaft (1), a crankshaft assembly (100), and a compressor. The crankshaft (1) comprises a spindle (12), a counterbalance (11), and an eccentric shaft (13); the spindle (12) and the eccentric shaft (13) are respectively provided at two sides of the counterweight (11) in an eccentric manner; a main lubricating oil path (123) is provided in the spindle (12); an oil leakage port (131) communicated with the main lucubrating oil path (123) is provided on the outer peripheral wall of the eccentric shaft (13); the eccentric bushing (2) is sleeved on the eccentric shaft (13) and opposite to the oil leakage port (131); the outer peripheral wall of the eccentric bushing (2) is provided with an axial flow port (21) passing through the eccentric bushing (2) along the thickness direction thereof.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 39/02 - Lubrification

Abrégé

A compression mechanism of a reciprocating compressor, the compression mechanism (100) comprising a crankshaft (2), a piston (4), a crankshaft eccentric sleeve (5), and a locking mechanism. The crankshaft (2) has an eccentric part (21), and the two ends of a connecting rod (3) are respectively a crankshaft connecting part (31) and a piston connecting part (32), the crankshaft connecting part (31) being sleeved over the eccentric part (21). The crankshaft eccentric sleeve (5) is sleeved between the crankshaft connecting part (31) and the eccentric part (21). The locking mechanism is arranged between the crankshaft eccentric sleeve (5) and the crankshaft (2); when the crankshaft (2) rotates in a different direction, the locking mechanism can lock the crankshaft eccentric sleeve (5) at different angles of the crankshaft (2), so that the stroke of the piston (4) is different. The compression mechanism has a dual refrigerating capacity. Also disclosed is a reciprocating compressor.

Classes IPC  ?

• F04B 49/12 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes en modifiant la course des organes de travail
• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

Disclosed are a stator (100), an electric motor and a refrigerator compressor. The stator (100) comprises: a stator core (1); an insulation cylinder (2) and a mounting point (3), the insulation cylinder (2) comprising a placement part (21) and a mounting part (22), and the placement part (21) being provided with a wire through hole (213); a stator winding (4), multiple windings (41) of the stator winding (4) being wound through the wire through hole (213) on an outer peripheral wall of the placement part (21); and multiple anti-collision protruding blocks (5), the multiple anti-collision protruding blocks (5) being spaced apart and disposed on the outer peripheral wall of the placement part (21), each winding (41) being correspondingly provided with at least one anti-collision protruding block (211) provided radially directly opposite the mounting point (3), and an outer peripheral wall of the anti-collision protruding block (211) extending beyond the winding (41).

Classes IPC  ?

• H02K 1/14 - Noyaux statoriques à pôles saillants
• H02K 3/34 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement entre conducteurs ou entre conducteur et noyau, p. ex. isolement d'encoches
• H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p. ex. façonnées pour former des boîtes à connexions ou à bornes

Abrégé

Disclosed are a rotor used for an electric motor, an electric motor and a compressor. The rotor comprises: a rotor core (1), with a shaft hole (11) and four magnet grooves (12) being provided on the rotor core; and four permanent magnets (2), the four permanent magnets being disposed in corresponding magnet grooves, and the permanent magnets comprising a first surface (21) and a second surface (22), wherein a projection on a base face of the first surface comprises a circular arc segment (211), and a projection on a base face of the second surface is formed of multiple linear segments connected in succession, the thickness H of the permanent magnets on a corresponding magnetic pole centre line, the length L projected in the base face of the second surface, and the radius R of the rotor core meeting the following relations: 0.24 ≤ H/R ≤ 0.26 and 1.07 ≤ L/R ≤ 1.11.

Classes IPC  ?

• H02K 1/27 - Noyaux rotoriques à aimants permanents

Abrégé

An oiling assembly (100) for a refrigerator compressor and a compressor having same. The oiling assembly (100) for a refrigerator compressor comprises an oiling blade (1) and an oil pump housing (2). An oil discharge hole (11) and an air discharge hole (12) are provided on the oiling blade (1). An oil inlet channel (13) eccentrically provided relative to a rotation axis of a crankshaft of the compressor is defined inside the oiling blade (1). An inner cavity (21) is defined inside the oil pump housing (2), and the oil pump housing (2) is provided with an oil inlet hole (22), an oil discharge connection hole (23), and an air discharge connection hole (24). The oil discharge connection hole (23) is in communication with the oil discharge hole (11). The air discharge connection hole (24) is in communication with the air discharge hole (12).

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 39/02 - Lubrification

Abrégé

A cylinder support (100) for a reciprocating compressor and a compressor having the same. The cylinder support (100) is generally formed in a cylindrical shape. The cylinder support (100) has a through hole (1) penetrating therethrough along an axial direction thereof and suitable for mounting a cylinder. The cylinder support (100) is made of a metal plate, and two ends of the metal plate are connected in a head-to-end manner to form a cylindrical shape.

Classes IPC  ?

• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
• F16J 10/00 - Cylindres de moteurs ou d'appareils analoguesParticularités des corps creux en général, p. ex. des corps cylindriques

Abrégé

A frame (100) for a reciprocating compressor and a compressor having the same. The frame (100) for the reciprocating compressor comprises: a bearing bracket (1), the bearing bracket (1) comprising a mounting plate (11) and two support brackets (12), both the mounting plate (11) and the two support brackets (12) made of metal plates, the support brackets (12) formed as flat plates and disposed perpendicularly to and below the mounting plate (11) to support the mounting plate (11), the mounting plate (11) provided with a mounting hole (111) thereon; a bearing (2), made of a metal tube and mounted in the mounting hole (111).

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 35/04 - Pompes à piston spécialement adaptées aux fluides compressibles et caractérisées par les moyens d'entraînement de leurs organes de travail ou par leur combinaison avec les machines motrices ou moteurs qui les entraînent ou bien par leurs adaptations à cet effet, non prévues ailleurs les moyens étant électriques

Abrégé

Disclosed are a crankshaft for a reciprocating compressor, the crankshaft comprising: a main shaft (1), a counter shaft (2) and a crank arm (3), the main shaft (1) and the counter shaft (2) being respectively arranged on two sides of the crank arm (3), the two sides of the crank arm (3) being respectively provided with a first counter bore (31) and a second counter bore (32), the main shaft (1) being installed in the first counter bore (31), and the counter shaft (2) being installed in the second counter bore (32), wherein a reciprocating compressor has the crankshaft. The main shaft (1), the counter shaft (2) and the crank arm (3) being separate parts enables the crankshaft to be formed simply and to be machined easily. Compared with traditional casting processes, the mass, the material cost and the machining cost of the crankshaft can be reduced; and the power of the reciprocating compressor during operation is reduced at least to a certain extent, improving the reliability of the reciprocating compressor.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F16C 3/06 - Vilebrequins

Abrégé

Disclosed are a variable-frequency rotor used in a reciprocating compressor, and a compressor having same. The variable-frequency rotor used in the reciprocating compressor comprises an iron rotor core (100), wherein the iron rotor core (100) is provided with a central hole (2) and a plurality of magnet grooves (1), each of the magnet grooves (1) is respectively generally formed to be an arc-shaped groove curved inwards along a radial direction of the iron rotor core, a contour line on a side, adjacent to the central hole (2), of the arc-shaped groove forms an inner contour line (11), a contour line on a side, away from the central hole, of the arc-shaped groove forms an outer contour line (12), and the radius of curvature in the middle part of the inner contour line (11) is greater than the radii of curvature at two ends of the inner contour line; and magnets, wherein the magnets are adapted to be installed in the magnet grooves (1).

Classes IPC  ?

• H02K 1/27 - Noyaux rotoriques à aimants permanents

Abrégé

A compressor and a refrigeration system having the same are provided. The compressor includes a crankcase, a thrust bearing and a crankshaft. The crankcase is formed with a crankshaft hole therein and provided with a mounting protrusion at an upper end thereof. The crankshaft hole runs upward through the mounting protrusion. The thrust bearing is fitted over the mounting protrusion. The crankshaft is rotatably disposed within the crankshaft hole, has a thrust part, and is formed with an oil supply passage therein. A lower end face of the thrust part is abutted against an upper end face of the thrust bearing. A cavity is defined by the mounting protrusion, the thrust bearing and the thrust part. A through hole is formed in a peripheral wall of the crankshaft for communicating the oil supply passage with the cavity.

Classes IPC  ?

• F25B 1/02 - Machines, installations ou systèmes à compression à cycle irréversible à compresseur alternatif
• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 39/02 - Lubrification
• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
• F16C 3/14 - Particularités relatives au graissage
• F16C 3/08 - Vilebrequins faits d'une seule pièce
• F16C 9/02 - Paliers de vilebrequin
• F16C 19/12 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges axiales principalement pour recevoir l'extrémité d'un arbre ou d'un autre organe, p. ex. crapaudines

Abrégé

Provided are a piston compressor (100) and a refrigerating system having same. The piston compressor comprises a crankcase (10), a thrust bearing (20), and a crankshaft (30), wherein the crankcase (10) is provided with a crankshaft hole (11), an installation protrusion (12) is provided at an upper end of the crankcase (10), and the crankshaft hole (11) extends upwards through the installation protrusion (12); the thrust bearing (20) is fitted around the outside of the installation protrusion (12); the crankshaft (30) is rotatably provided within the crankshaft hole (11), a thrust portion (31) is provided on the crankshaft (30), a lower end surface of the thrust portion (31) bears against an upper end surface of the thrust bearing (20), and an oil circuit (32) is formed within the crankshaft (30), with a cavity (40) being formed between the installation protrusion (12), the thrust bearing (20) and the trust portion (31), and a through hole (41) being formed on the circumferential wall of the crankshaft (30) for intercommunication between the oil circuit (32) and the cavity (40).

Classes IPC  ?

• F04B 39/02 - Lubrification
• F16C 3/14 - Particularités relatives au graissage

Abrégé

A crankshaft for a reciprocating compressor and the reciprocating compressor provided with the same. The crankshaft (100) comprises a main shaft (110), a crank (120), and an eccentric block (130). The main shaft (110) and the crank (120) are respectively disposed on two sides of the eccentric block (130), the main shaft (110) and the eccentric block (130) are welded and fixed, and the crank (120) and the eccentric block (130) are welded and fixed.

Classes IPC  ?

• F16C 3/10 - Vilebrequins formés de plusieurs parties, p. ex. réunis par soudure
• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

A compressor (100) comprises a housing (1), and comprises a compressor pump body (2), a machine frame (3) and a motor (5) that are disposed in the housing (1). A stator positioning portion (8) is formed on a stator (52) of the motor (5). A machine frame positioning portion matching the stator positioning portion (8) is disposed on the machine frame (3). A height limiting portion (7) is disposed on the machine frame (3) and abuts against the upper surface of the stator (52).

Classes IPC  ?

• F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
• F04B 53/16 - Carcasses d'enveloppeCylindresChemises de cylindre ou culassesConnexions des tubulures pour fluide