Torque compensation components, electric components and electrical equipment

Abstract

The present invention provides a torque compensation component, an electric component and an electrical device. The torque compensation component is used for the electric component. The electric component includes a support and a rotating shaft. The torque compensation component includes: a first magnetic component, the first magnetic component includes a first core and a first compensation component, the first core is connected to the support, and the first compensation component is connected to the first core; a second magnetic component, the second magnetic component includes a second core and a second compensation component, the second core is connected to the rotating shaft, and the second compensation component is connected to the second core; wherein the second compensation component is arranged on one side of the first compensation component, and the first compensation component and the second compensation component generate mechanical effects through a magnetic field. The torque compensation component provided by the present invention can realize torque compensation through the structure of the electric component itself.

Description

Technical Field

[0001] The invention relates to the technical field of compressors, and in particular to a torque compensation component, an electric component and electrical equipment. Background Art

[0002] At present, in the related technology, when the compressor compresses gas, the gas resistance torque changes periodically, causing the compressor load torque to fluctuate periodically. However, since the output torque of the compressor drive motor is a constant value, the compressor has torque imbalance, which in turn causes the compressor speed to fluctuate. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention provides a torque compensation component.

[0005] A second aspect of the present invention provides an electric component.

[0006] A third aspect of the present invention provides an electrical device.

[0007] In view of this, a first aspect of the present invention provides a torque compensation component, which is used for an electric component, the electric component includes a support and a rotating shaft, and the torque compensation component includes: a first magnetic component, the first magnetic component includes a first iron core and a first compensation component, the first iron core is connected to the support, and the first compensation component is connected to the first iron core; a second magnetic component, the second magnetic component includes a second iron core and a second compensation component, the second iron core is connected to the rotating shaft, and the second compensation component is connected to the second iron core; wherein the second compensation component is arranged on one side of the first compensation component, and the first compensation component and the second compensation component generate a compensation torque through the action of a magnetic field.

[0008] In this technical solution, there is an air gap between the first magnetic component and the second magnetic component, the first magnetic component is connected to the support of the electric component, and the second magnetic component is connected to the rotating shaft of the electric component, so that when the electric component is working, the electric component drives the piston to rotate and compress the gas, and the second magnetic component also rotates synchronously and rotates relative to the first magnetic component to achieve the installation and fixation of the first magnetic component and the second magnetic component. When the electric component is working, the compensation torque is generated by the magnetic attraction and repulsion between the first compensation component and the second compensation component or the interaction force between the magnetic component and the magnetic teeth, so that the torque can be compensated by the structure of the electric component itself, so that the output torque of the electric component can change with the gas compression process of the electric component, avoid the situation of torque imbalance of the electric component, reduce the speed fluctuation of the electric component, thereby reducing vibration and noise, especially when the electric component works at low frequency and low speed, it can better reduce the speed fluctuation of the electric component, reduce vibration and noise, and thus improve the low-frequency performance of the electric component.

[0009] In addition, the single-cylinder compressor has the advantages of simple structure and low cost, and can be widely used in refrigeration equipment such as air conditioners and refrigerators. Especially when the electric component is a single-cylinder compressor, due to the large load torque fluctuation of the single-cylinder compressor, if torque compensation is not performed, there will be obvious speed fluctuation problems, generating vibration and noise and reducing reliability, seriously affecting the low-frequency performance of the compressor. The present application compensates the torque of the compressor through a torque compensation component, thereby better reducing speed fluctuations, reducing vibration and noise, and improving the low-frequency performance of the single-cylinder compressor.

[0010] Moreover, compared with the conventional method of generating compensation torque by regulating the motor current through electronic control, there is no need to introduce additional compensation current, nor will it cause a decrease in the efficiency of the electric drive system, and the required torque compensation can be met.

[0011] The number of poles formed by the permanent magnets in the first magnetic component and the second magnetic component is 1 or the number of pole pairs is 1, and the number of teeth formed by the protruding cores in the first magnetic component and the second magnetic component is 1. The magnetic poles of the first magnetic component and the second magnetic component interact with each other, or the magnetic poles and the teeth interact with each other to form a compensation torque. For each rotation of the electric component, the fundamental wave period number of the compensation torque is 1.

[0012] When the electric component is running, the second magnetic component rotates synchronously with the electric component and rotates relative to the first magnetic component. When the magnetic pole or tooth on the second magnetic component approaches the magnetic pole or tooth on the first magnetic component, the second magnetic component and the first magnetic component form a positive torque through the action of magnetic attraction, repulsion or the interaction between the magnetic component and the magnetic tooth; when the magnetic pole or tooth on the second magnetic component moves away from the magnetic pole or tooth on the first magnetic component, the direction of the magnetic attraction, repulsion or the interaction between the magnetic component and the magnetic tooth changes to form a reverse torque. Thus, an alternating torque with periodic changes in direction and magnitude is generated. The compensation torque changes by one cycle every time the electric component rotates one circle.

[0013] In addition, in the above technical solution provided by the present invention, the electric component may also have the following additional technical features:

[0014] In a technical solution of the present invention, the first compensation component is arranged in a fan shape; the second compensation component is arranged in a ring shape or a fan shape.

[0015] In this technical solution, the shape of the first compensation component is fan-shaped, and the second compensation component is annular or fan-shaped, so that the circumferential angle between the first compensation component and the second compensation component is less than 360 degrees, so that when the second compensation component approaches the first compensation component, a positive torque is formed between the second compensation component and the first compensation component through the magnetic attraction, repulsion, or the interaction force between the magnetic component and the magnetic tooth portion; when the second compensation component moves away from the first compensation component, the direction of the magnetic attraction, repulsion, or the interaction force between the magnetic component and the magnetic tooth portion is reversed, forming a reverse torque, and then forming a compensation torque.

[0016] Specifically, the arrangement of the first compensation component and the second compensation component is flexible and diverse, including but not limited to a coreless structure, a Halbach array structure, a surface-mounted structure in which the permanent magnet is installed on the surface of the core, and a built-in structure in which the permanent magnet is installed in the core slot, that is, the permanent magnet arrangement of conventional permanent magnet motors can be easily transplanted and used.

[0017] In a technical solution of the present invention, the first magnetic component is located on one side of the second magnetic component in the radial direction of the rotating shaft.

[0018] In this technical solution, the first magnetic component is arranged on one side of the second magnetic component in the radial direction of the rotating shaft, so that the structure is not arranged on the stator component and the rotor component of the electric component, and thus will not affect the function of the electric component, and can generate compensating torque when the electric component is running.

[0019] Specifically, at least one of the first compensation component and the second compensation component contains a permanent magnet, and the other contains a protruding iron core and / or a permanent magnet; wherein the permanent magnet forms a magnetic pole, and the protruding iron core forms a tooth. The circumferential angle occupied by the magnetic pole or the tooth of at least one of the first compensation component and the second compensation component is less than 360 degrees.

[0020] Specifically, the arrangement of the permanent magnets in the first compensation component and the second compensation component is flexible and diverse, including but not limited to a coreless structure, a Halbach array structure, a surface-mounted structure in which the permanent magnets are installed on the surface of the core, and a built-in structure in which the permanent magnets are installed in the core slots, that is, the permanent magnet arrangement methods of conventional permanent magnet motors can be easily transplanted and used.

[0021] Specifically, the structural styles of the teeth in the first compensation component and the second compensation component are flexible and diverse, and it is only necessary to form a protrusion in the air gap so that the air gap magnetic permeability in the circumferential direction is unevenly distributed; in particular, according to the above definition, an iron core with uniform thickness occupying a certain range of circumferential angles relative to the air in the circumferential direction also belongs to the tooth.

[0022] The magnetic flux directions of the magnetic fields formed by the first compensation component and the second compensation component in the air gap are both radial, and the magnetic flux path is closed in a plane orthogonal to the rotation axis.

[0023] Specifically, the permanent magnets in the first compensation component and the second compensation component can be omitted, and the poles of the omitted permanent magnets are changed into teeth, which interact with the poles of the other permanent magnets to form compensation torque.

[0024] In a technical solution of the present invention, the first core is fan-shaped, the first compensation component is arranged along the inner wall of the first core; the second compensation component is arranged along the outer wall of the second core; and there is a gap between the first compensation component and the second compensation component.

[0025] In this technical solution, the first core is fan-shaped, so that the first core can also be arranged outside the second compensation component, and the first compensation component is arranged on the inner wall of the first core, and the second compensation component is arranged on the outer wall of the second core, so as to realize the installation and fixation of the first compensation component and the second compensation component. Since there is a gap between the first compensation component and the second compensation component, the second compensation component can generate magnetic attraction, repulsion or interaction between the magnetic component and the magnetic tooth portion in the air gap when approaching the first compensation component, thereby generating a compensation torque.

[0026] In a technical solution of the present invention, the first magnetic component and the second magnetic component are arranged along the axial direction of the rotating shaft.

[0027] In this technical solution, the first magnetic component is arranged on one side of the second magnetic component in the axial direction of the rotating shaft, so that the structure is not arranged on the stator component and the rotor component of the electric component, and thus will not affect the function of the electric component, and can achieve compensating torque when the electric component is running.

[0028] Specifically, at least one of the first compensation component and the second compensation component contains a permanent magnet, and the other contains a protruding iron core and / or a permanent magnet; wherein the permanent magnet forms a magnetic pole, and the protruding iron core forms a tooth. The circumferential angle occupied by the magnetic pole or the tooth of at least one of the first compensation component and the second compensation component is less than 360 degrees.

[0029] Specifically, the magnetic flux directions of the magnetic fields formed by the first compensation component and the second compensation component in the air gap are both axial, and the magnetic flux path is closed in a curved surface parallel to the rotation axis.

[0030] In one technical solution of the present invention, the first core is fan-shaped, and the first compensation component is arranged on at least one side of the first core in the axial direction; the second core is annular or fan-shaped, and the second compensation component is arranged on at least one side of the second core in the axial direction, opposite to the first compensation component; there is a gap between the first compensation component and the second compensation component.

[0031] In this technical solution, the first compensation component is fan-shaped and arranged on at least one side of the first iron core in the axial direction, and the second compensation component is arranged on at least one side of the second iron core in the axial direction, opposite to the first compensation component, and there is a gap between the first compensation component and the second compensation component, so that when the second compensation component approaches the first compensation component, magnetic attraction, repulsion or interaction between the magnetic component and the magnetic tooth portion can be generated, thereby generating a compensation torque.

[0032] Specifically, when the first compensation component wraps the second compensation component, the second compensation component can be arranged on both sides of the second core, and the first compensation component is arranged on the inner side of the first core.

[0033] In a technical solution of the present invention, there are multiple second compensation components, which are respectively arranged on both sides of the second core in the axial direction; there are two groups of first magnetic components, which are respectively arranged on both sides of the second magnetic component in the axial direction.

[0034] In this technical solution, there are multiple second compensation components, which are respectively arranged on both sides of the second iron core in the axial direction; there are two groups of first magnetic components, which are respectively arranged on both sides of the second magnetic component in the axial direction, so that the magnetic attraction and repulsion between the first compensation component and the second compensation component or the interaction between the magnetic component and the magnetic tooth portion can produce a larger compensation torque.

[0035] Specifically, the number of the second compensation component is one, which is respectively arranged on both sides of the second core in the axial direction; the number of the first magnetic components is two groups, which are respectively arranged on both sides of the second magnetic components in the axial direction.

[0036] Specifically, there are two second compensation components, which are respectively arranged on both sides of the second core in the axial direction; there are two groups of first magnetic components, which are respectively arranged on both sides of the second magnetic component in the axial direction.

[0037] In a technical solution of the present invention, the first cores of the two groups of first magnetic components are of an integrated structure.

[0038] In this technical solution, the first cores of the two groups of first magnetic components are of an integrated structure, so that the first magnetic component can wrap the second magnetic component therein, thereby making the assembly process simpler, making the structure more stable, and also allowing the first compensation components in the two groups of first magnetic components to be installed on one first core.

[0039] In a technical solution of the present invention, there are multiple first compensation components, which are respectively arranged on both sides of the first core in the axial direction; there are two groups of second magnetic components, which are respectively arranged on both sides of the first magnetic component in the axial direction.

[0040] In this technical solution, there are multiple first compensation components, which are respectively arranged on both sides of the first iron core in the axial direction; there are two groups of second magnetic components, which are respectively arranged on both sides of the first magnetic component in the axial direction, so that the magnetic attraction and repulsion between the first compensation component and the second compensation component or the interaction between the magnetic component and the magnetic tooth portion can produce a larger compensation torque.

[0041] Specifically, there is one first compensation component, which is disposed on both sides of the first core in the axial direction; and there are two groups of second magnetic components, which are disposed on both sides of the first magnetic component in the axial direction.

[0042] Specifically, there are two first compensation components, which are respectively arranged on both sides of the first core in the axial direction; and there are two groups of second magnetic components, which are respectively arranged on both sides of the first magnetic component in the axial direction.

[0043] In one technical solution of the present invention, the first compensation component includes a group of first magnetic components; the second compensation component includes at least two groups of second magnetic components, and the at least two groups of second magnetic components are arranged at intervals along the circumference of the second core; wherein, when the second magnetic component rotates relative to the first magnetic component, at least two groups of second magnetic components alternately act with a group of first magnetic components.

[0044] In this technical solution, the first compensation component includes a group of first magnetic components; the second compensation component includes at least two groups of second magnetic components, and the at least two groups of second magnetic components are arranged at intervals along the circumference of the second core; wherein, when the second magnetic component rotates relative to the first magnetic component, at least two groups of second magnetic components act alternately on a group of first magnetic components, so that the number of poles of the first compensation component is 1, and the number of poles of the second compensation component is 2 (the number of pole pairs is 1), and the fundamental wave period number of the generated compensation torque is still 1. Compared with only one group of first compensation components and only one group of second compensation components, during the operation of the electric component, the second compensation component is rotated to achieve alternating action with the first transmission component, thereby making the generated compensation torque larger.

[0045] Specifically, the first compensation component includes a group of first magnetic components; the second compensation component includes at least four groups of second magnetic components, and the at least four groups of second magnetic components are arranged at intervals along the circumference of the second core; wherein, when the second magnetic component rotates relative to the first magnetic component, the at least four groups of second magnetic components alternately act on the one group of first magnetic components.

[0046] Specifically, the first compensation component includes a group of first magnetic components; the second compensation component includes at least six groups of second magnetic components, and the at least six groups of second magnetic components are arranged at intervals along the circumference of the second core; wherein, when the second magnetic component rotates relative to the first magnetic component, the at least six groups of second magnetic components alternately act on the one group of first magnetic components.

[0047] Specifically, the first compensation component includes a group of first magnetic components; the second compensation component includes at least multiple groups of second magnetic components, and at least multiple groups of second magnetic components are arranged at intervals along the circumference of the second core; wherein, when the second magnetic component rotates relative to the first magnetic component, at least multiple groups of second magnetic components alternately act on the group of first magnetic components.

[0048] In one technical solution of the present invention, the first compensation component includes at least one first magnetic component; and / or the second compensation component includes at least one second magnetic component.

[0049] In this technical solution, the first compensation component includes at least one first magnetic component; the second compensation component includes at least one second magnetic component, so that the structure can constitute a multi-section composite structure, thereby making it possible to conveniently adjust the harmonic content of the compensation torque.

[0050] Specifically, the first compensation component includes two first magnetic components; the second compensation component includes two second magnetic components, and the two first magnetic components and the two second magnetic components may be arranged in a staggered combination.

[0051] Specifically, the first compensation component includes three first magnetic components; the second compensation component includes three second magnetic components, and the three first magnetic components and the three second magnetic components may be arranged in a staggered combination.

[0052] Specifically, the first compensation component includes a plurality of first magnetic components; the second compensation component includes a plurality of second magnetic components, and the plurality of first magnetic components and the plurality of second magnetic components may be arranged in a staggered combination.

[0053] In a technical solution of the present invention, there are multiple groups of first magnetic components, which are arranged axially; there are multiple groups of second magnetic components, which are arranged axially.

[0054] In this technical solution, the first magnetic component and the second magnetic component are arranged in multiple groups and arranged along the axial direction, thereby achieving the effect of increasing the compensation torque.

[0055] In a technical solution of the present invention, one of the first compensation component and the second compensation component is a magnetic component, and the other compensation component is a magnetically conductive tooth.

[0056] In this technical solution, the first compensation component and the second compensation component, one compensation component is a magnetic component, and the other compensation component is a magnetic tooth, that is, the magnetic tooth is a magnetic material that can interact with the magnetic component. When the electric component is running, when the second rotating component rotates close to the first rotating component, due to the attraction between the magnetic component and the metal, the magnetic component has an attractive force on the magnetic tooth, thereby generating a compensating torque.

[0057] Specifically, the first compensation component is a magnetic component, and the second compensation component is a magnetic tooth. When the electric component is running, when the second rotating component rotates close to the first rotating component, due to the attraction between the magnetic component and the magnetic tooth, the first compensation component has an attractive force on the second compensation component, thereby generating a compensation torque.

[0058] Specifically, the second compensation component is a magnetic component, and the first compensation component is a magnetic tooth. When the electric component is running, when the second rotating component rotates close to the first rotating component, due to the attraction between the magnetic component and the magnetic tooth, the second compensation component has an attractive force on the first compensation component, thereby generating a compensation torque.

[0059] Specifically, the arrangement of the permanent magnets in the first compensation component and the second compensation component is flexible and diverse, including but not limited to a coreless structure, a Halbach array structure, a surface-mounted structure in which the permanent magnets are installed on the surface of the core, and a built-in structure in which the permanent magnets are installed in the core slots, that is, the permanent magnet arrangement methods of conventional permanent magnet motors can be easily transplanted and used.

[0060] Specifically, the structural styles of the teeth in the first compensation component and the second compensation component are flexible and diverse, and it is only necessary to form a protrusion in the air gap so that the air gap magnetic permeability in the circumferential direction is unevenly distributed; in particular, according to the above definition, an iron core with uniform thickness occupying a certain range of circumferential angles relative to the air in the circumferential direction also belongs to the tooth.

[0061] A second aspect of the present invention provides an electric component, including the above-mentioned torque compensation component, so that the electric component has all the beneficial effects of any of the above-mentioned technical solutions.

[0062] In this technical solution, there is an air gap between the first magnetic component and the second magnetic component, the first magnetic component is connected to the support member of the electric component, and the second magnetic component is connected to the rotating shaft of the electric component, so that when the electric component is working, the electric component drives the piston to rotate and compress the gas, and the second magnetic component also rotates synchronously and rotates relative to the first magnetic component to achieve the installation and fixation of the first magnetic component and the second magnetic component. When the electric component is working, the compensation torque is generated by the magnetic attraction and repulsion between the first magnetic component and the second magnetic component or the interaction between the magnetic component and the magnetically conductive teeth, so that the torque can be compensated through the structure of the electric component itself, so that the output torque of the electric component can change with the gas compression process of the electric component, avoiding the situation of torque imbalance in the electric component, reducing the speed fluctuation of the electric component, thereby reducing vibration and noise, especially when the electric component is working at low frequency and low speed, it can better reduce the speed fluctuation of the electric component, reduce vibration and noise, and thus improve the low-frequency performance of the electric component.

[0063] In addition, the single-cylinder compressor has the advantages of simple structure and low cost, and can be widely used in refrigeration equipment such as air conditioners and refrigerators. Especially when the electric component is a single-bar compressor, due to the large load torque fluctuation of the single-cylinder compressor, if torque compensation is not performed, there will be obvious speed fluctuation problems, generating vibration and noise and reducing reliability, seriously affecting the low-frequency performance of the compressor. The present application compensates the torque of the compressor through a torque compensation component, thereby better reducing speed fluctuations, reducing vibration and noise, and improving the low-frequency performance of the single-cylinder compressor.

[0064] Moreover, compared with the conventional method of generating compensation torque by regulating the motor current through electronic control, there is no need to introduce additional compensation current, nor will it cause a decrease in the efficiency of the electric drive system, and the required torque compensation can be met.

[0065] The number of poles formed by the permanent magnets in the first magnetic component and the second magnetic component is 1 or the number of pole pairs is 1, and the number of teeth formed by the protruding cores in the first magnetic component and the second magnetic component is 1. The magnetic poles of the first magnetic component and the second magnetic component interact with each other, or the magnetic poles and the teeth interact with each other to form a compensation torque. For each rotation of the electric component, the fundamental wave period number of the compensation torque is 1.

[0066] When the electric component is running, the second magnetic component rotates synchronously with the electric component and rotates relative to the first magnetic component. When the magnetic pole or tooth on the second magnetic component approaches the magnetic pole or tooth on the first magnetic component, the second magnetic component and the first magnetic component form a positive torque through the magnetic attraction, repulsion, or the interaction between the magnetic pole and the magnetic tooth; when the magnetic pole or tooth on the second magnetic component moves away from the magnetic pole or tooth on the first magnetic component, the direction of the magnetic attraction, repulsion, or the interaction between the magnetic component and the magnetic tooth changes to form a reverse torque. Thus, an alternating torque with a periodic change in direction and magnitude is generated. The compensation torque changes by one cycle every time the electric component rotates one circle.

[0067] In one technical solution of the present invention, the support member is a shell, and the electric component also includes: a stator, which is arranged in the shell and connected to the shell; a rotor, which is inserted in the stator and the rotating shaft is inserted in the rotor; a cylinder, which includes a cylinder body and a piston, the cylinder body is connected to the shell, and the piston is connected to the rotating shaft.

[0068] In this technical solution, the stator is arranged in the shell and connected to the shell, the rotor is inserted in the stator, and the rotating shaft is inserted in the rotor; the cylinder includes a cylinder body and a piston, the cylinder body is connected to the shell, and the piston is connected to the rotating shaft, thereby realizing the installation and fixation of the stator, rotor and rotating shaft. When the electric component is running, the stator and the rotor generate torque according to the principle of permanent magnet synchronous motor, thereby providing initial power for the electric component cylinder to drive the piston to rotate and compress the gas.

[0069] The third aspect of the present invention provides an electrical device, including the above-mentioned electric component, so that the electrical device has all the beneficial effects of any of the above-mentioned technical solutions.

[0070] In this technical solution, there is an air gap between the first magnetic component and the second magnetic component, the first magnetic component is connected to the support of the electric component, and the second magnetic component is connected to the rotating shaft of the electric component, so that when the electric component is working, the electric component drives the piston to rotate and compress the gas, and the second magnetic component also rotates synchronously and rotates relative to the first magnetic component to achieve the installation and fixation of the first magnetic component and the second magnetic component. When the electric component is working, the compensation torque is generated by the magnetic attraction and repulsion between the first magnetic component and the second magnetic component or the interaction between the magnetic component and the magnetically conductive teeth, so that the torque can be compensated through the structure of the electric component itself, so that the output torque of the electric component can change with the gas compression process of the electric component, avoiding the torque imbalance of the electric component, reducing the speed fluctuation of the electric component, thereby reducing vibration and noise, especially when the electric component is working at low frequency and low speed, the speed fluctuation of the electric component can be better reduced, reducing vibration and noise, thereby improving the low-frequency performance of the electric component.

[0071] In addition, the single-cylinder compressor has the advantages of simple structure and low cost, and can be widely used in refrigeration equipment such as air conditioners and refrigerators. Especially when the electric component is a single-bar compressor, due to the large load torque fluctuation of the single-cylinder compressor, if torque compensation is not performed, there will be obvious speed fluctuation problems, generating vibration and noise and reducing reliability, seriously affecting the low-frequency performance of the compressor. The present application compensates the torque of the compressor through a torque compensation component, thereby better reducing speed fluctuations, reducing vibration and noise, and improving the low-frequency performance of the single-cylinder compressor.

[0072] Moreover, compared with the conventional method of generating compensation torque by regulating the motor current through electronic control, there is no need to introduce additional compensation current, nor will it cause a decrease in the efficiency of the electric drive system, and the required torque compensation can be met.

[0073] The number of poles formed by the permanent magnets in the first magnetic component and the second magnetic component is 1 or the number of pole pairs is 1, and the number of teeth formed by the protruding cores in the first magnetic component and the second magnetic component is 1. The magnetic poles of the first magnetic component and the second magnetic component interact with each other, or the magnetic poles and the teeth interact with each other to form a compensation torque. For each rotation of the electric component, the fundamental wave period number of the compensation torque is 1.

[0074] When the electric component is running, the second magnetic component rotates synchronously with the electric component and rotates relative to the first magnetic component. When the magnetic pole or tooth on the second magnetic component approaches the magnetic pole or tooth on the first magnetic component, the second magnetic component and the first magnetic component form a positive torque through magnetic attraction, repulsion, or the interaction between the magnetic component and the magnetic teeth; when the magnetic pole or tooth on the second magnetic component moves away from the magnetic pole or tooth on the first magnetic component, the direction of the magnetic attraction, repulsion, or the interaction between the magnetic component and the magnetic teeth changes to reverse, forming a reverse torque. Thus, an alternating torque with a periodic change in direction and magnitude is generated. The compensation torque changes by one cycle every time the electric component rotates one circle.

[0075] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0077] Figure 1 One of the schematic diagrams of a torque compensation assembly and an electric assembly according to an embodiment of the present invention is shown;

[0078] Figure 2 One of the schematic diagrams of a torque compensation assembly according to one embodiment of the present invention is shown;

[0079] Figure 3 One of the schematic diagrams of a torque compensation assembly according to one embodiment of the present invention is shown;

[0080] Figure 4 One of the schematic diagrams of a torque compensation assembly according to one embodiment of the present invention is shown;

[0081] Figure 5 One of the schematic diagrams of a torque compensation assembly according to one embodiment of the present invention is shown;

[0082] Figure 6 One of the schematic diagrams of a torque compensation assembly according to one embodiment of the present invention is shown;

[0083] Figure 7 One of the schematic diagrams of a torque compensation assembly according to one embodiment of the present invention is shown;

[0084] Figure 8 One of the schematic diagrams of a torque compensation assembly according to one embodiment of the present invention is shown;

[0085] Fig. 9One of the schematic diagrams of a torque compensation assembly according to one embodiment of the present invention is shown;

[0086] Fig.10 One of the schematic diagrams of a torque compensation assembly according to one embodiment of the present invention is shown;

[0087] Fig.11 One of the schematic diagrams of a torque compensation assembly according to one embodiment of the present invention is shown;

[0088] Fig.12 One of the schematic diagrams of a torque compensation assembly according to one embodiment of the present invention is shown;

[0089] Fig.13 One of the schematic diagrams of an electrical device according to an embodiment of the present invention is shown;

[0090] in, Figures 1 to 13 The corresponding relationship between the reference numerals and component names in the figure is:

[0091] 100 torque compensation component, 110 first magnetic component, 112 first iron core, 114 first compensation component, 120 second magnetic component, 122 second iron core, 124 second compensation component, 200 electric component, 202 rotating shaft, 204 housing, 206 stator, 208 rotor, 210 cylinder. DETAILED DESCRIPTION

[0092] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0093] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0094] Refer to the following Figures 1 to 13 A torque compensation assembly, an electric assembly and an electrical device according to some embodiments of the present invention are described.

[0095] Embodiment 1:

[0096] The present invention provides a torque compensation component 100, which is used for an electric component 200. The electric component 200 includes a support member and a rotating shaft 202. The torque compensation component 100 includes: a first magnetic component 110, the first magnetic component 110 includes a first iron core 112 and a first compensation component 114, the first iron core 112 is connected to the support member, and the first compensation component 114 is connected to the first iron core 112; a second magnetic component 120, the second magnetic component 120 includes a second iron core 122 and a second compensation component 124, the second iron core 122 is connected to the rotating shaft 202, and the second compensation component 124 is connected to the second iron core 122; wherein the second compensation component 124 is arranged on one side of the first compensation component 114, and the first compensation component 114 and the second compensation component 124 generate a compensation torque through the action of a magnetic field.

[0097] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, there is an air gap between the first magnetic component 110 and the second magnetic component 120, the first magnetic component 110 is connected to the support member of the electric component 200, and the second magnetic component 120 is connected to the rotating shaft 202 of the electric component 200, so that when the electric component 200 is working, the electric component 200 drives the piston to rotate and compress the gas, and the second magnetic component also rotates synchronously and rotates relative to the first magnetic component, thereby realizing the installation and fixation of the first magnetic component 110 and the second magnetic component 120. When the electric component 200 is working, the compensatory torque is generated by the magnetic attraction, repulsion or interaction between the first magnetic component 110 and the second magnetic component 120 or the interaction between the magnetic component and the teeth, and then the torque compensation can be achieved through the structure of the electric component 200 itself, so that the output torque of the electric component 200 can change with the gas compression process of the electric component 200, avoiding the torque imbalance of the electric component 200, reducing the speed fluctuation of the electric component 200, and thus reducing vibration and noise. Especially when the electric component 200 is working at low frequency and low speed, the speed fluctuation of the electric component 200 can be better reduced, and the vibration and noise can be reduced, thereby improving the low-frequency performance of the electric component 200.

[0098] In addition, the single-cylinder compressor has the advantages of simple structure and low cost, and can be widely used in refrigeration equipment such as air conditioners and refrigerators. Especially when the electric component 200 is a single-cylinder compressor, due to the large load torque fluctuation of the single-cylinder compressor, if torque compensation is not performed, there will be obvious speed fluctuation problems, generating vibration and noise and reducing reliability, seriously affecting the low-frequency performance of the compressor. The present application compensates the torque of the compressor through the torque compensation component 100, thereby better reducing the speed fluctuation, as well as reducing vibration and noise, and improving the low-frequency performance of the single-cylinder compressor.

[0099] Moreover, compared with the conventional method of generating compensation torque by regulating the motor current through electronic control, there is no need to introduce additional compensation current, nor will it cause a decrease in the efficiency of the electric drive system, and the required torque compensation can be met.

[0100] The number of poles formed by the permanent magnets in the first magnetic assembly 110 and the second magnetic assembly 120 is 1 or the number of pole pairs is 1, and the number of teeth formed by the protruding cores in the first magnetic assembly 110 and the second magnetic assembly 120 is 1. The magnetic poles of the first magnetic assembly 110 and the second magnetic assembly 120 interact with each other, or the magnetic poles and the teeth interact with each other to form a compensation torque. For each rotation of the electric assembly 200, the fundamental wave period number of the compensation torque is 1.

[0101] When the electric component 200 is running, the second magnetic component 120 rotates synchronously with the electric component 200 and rotates relative to the first magnetic component 110. When the magnetic pole or tooth on the second magnetic component 120 approaches the magnetic pole or tooth on the first magnetic component 110, the second magnetic component 120 and the first magnetic component 110 form a positive torque through magnetic attraction, repulsion, or the interaction between the magnetic component and the magnetic teeth; when the magnetic pole or tooth on the second magnetic component 120 is away from the magnetic pole or tooth on the first magnetic component 110, the direction of the magnetic attraction, repulsion, or the interaction between the magnetic component and the magnetic teeth is reversed to form a reverse torque. Thus, an alternating torque with a periodic change in direction and magnitude is generated. The compensation torque changes by one cycle every time the electric component 200 rotates one circle.

[0102] Embodiment 2:

[0103] This embodiment provides a torque compensation assembly 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0104] The present invention provides a torque compensation assembly 100, wherein the first compensation component 114 is arranged in a fan shape; and the second compensation component 124 is arranged in a ring shape or a fan shape.

[0105] like Figure 2 and Figure 3As shown, in this embodiment, the shape of the first compensation component 114 is fan-shaped, and the second compensation component 124 is annular or fan-shaped, so that the circumferential angle of the first compensation component 114 and the second compensation component 124 is less than 360 degrees, so that when the second compensation component 124 approaches the first compensation component 114, a positive torque is formed between the second compensation component 124 and the first compensation component 114 through the magnetic attraction, repulsion, or the interaction force between the magnetic component and the magnetic teeth; when the second compensation component 124 moves away from the first compensation component 114, the direction of the magnetic attraction, repulsion, or the interaction force between the magnetic component and the magnetic teeth is reversed to form a reverse torque, thereby forming a compensation torque.

[0106] Specifically, the arrangement of the first compensation component 114 and the second compensation component 124 is flexible and diverse, including but not limited to a coreless structure, a Halbach array structure, a surface-mounted structure in which the permanent magnet is installed on the surface of the core, and a built-in structure in which the permanent magnet is installed in the core slot, that is, the permanent magnet arrangement of conventional permanent magnet motors can be easily transplanted and used.

[0107] Embodiment three:

[0108] This embodiment provides a torque compensation assembly 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0109] The present invention provides a torque compensation assembly 100 , wherein a first magnetic assembly 110 is located on one side of a second magnetic assembly 120 in a radial direction of a rotating shaft 202 .

[0110] like Figure 4 As shown, in this embodiment, the first magnetic component 110 is arranged on one side of the second magnetic component 120 in the radial direction of the rotating shaft 202, so that the structure is not arranged on the stator 206 component and the rotor 208 component of the electric component 200, and thus will not affect the function of the electric component 200, and can achieve the generation of compensating torque when the electric component 200 is running.

[0111] Specifically, at least one of the first compensation component 114 and the second compensation component 124 contains a permanent magnet, and the other contains a protruding iron core and / or a permanent magnet; wherein the permanent magnet forms a magnetic pole, and the protruding iron core forms a tooth. The circumferential angle occupied by the magnetic pole or the tooth of at least one of the first compensation component 114 and the second compensation component 124 is less than 360 degrees.

[0112] Specifically, the arrangement of the permanent magnets in the first compensation component 114 and the second compensation component 124 is flexible and diverse, including but not limited to a coreless structure, a Halbach array structure, a surface-mounted structure in which the permanent magnets are installed on the surface of the core, and a built-in structure in which the permanent magnets are installed in the core slots, that is, the permanent magnet arrangement methods of conventional permanent magnet motors can be easily transplanted and used.

[0113] Specifically, the structural styles of the teeth in the first compensation component 114 and the second compensation component 124 are flexible and diverse, and it is only necessary to form a protrusion in the air gap so that the air gap magnetic permeability in the circumferential direction is unevenly distributed; in particular, according to the above definition, an iron core with uniform thickness occupying a certain range of circumferential angles relative to the air in the circumferential direction also belongs to the tooth.

[0114] The magnetic flux directions of the magnetic fields formed by the first compensation component 114 and the second compensation component 124 in the air gap are both radial, and the magnetic flux path is closed in a plane orthogonal to the rotation axis 202 .

[0115] Specifically, the permanent magnets in the first compensation component 114 and the second compensation component 124 can be omitted, and the poles of the omitted permanent magnets are changed into teeth, which interact with the poles of the other permanent magnets to form compensation torque.

[0116] Embodiment 4:

[0117] This embodiment provides a torque compensation assembly 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0118] The present invention provides a torque compensation component 100, wherein the first core 112 is fan-shaped, the first compensation component 114 is arranged along the inner wall of the first core 112; the second compensation component 124 is arranged along the outer wall of the second core 122; and there is a gap between the first compensation component 114 and the second compensation component 124.

[0119] like Figure 4 As shown, in this embodiment, the first core 112 is fan-shaped, so that the first core 112 can also be arranged outside the second compensation component 124, and the first compensation component 114 is arranged on the inner wall of the first core 112, and the second compensation component 124 is arranged on the outer wall of the second core 122, so as to realize the installation and fixation of the first compensation component 114 and the second compensation component 124. Since there is a gap between the first compensation component 114 and the second compensation component 124, the second compensation component 124 can generate magnetic attraction, repulsion or interaction between the magnetic component and the magnetic teeth in the air gap when approaching the first compensation component 114, thereby generating a compensation torque.

[0120] Embodiment five:

[0121] This embodiment provides a torque compensation assembly 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0122] The present invention provides a torque compensation assembly 100 , wherein a first magnetic assembly 110 and a second magnetic assembly 120 are arranged along the axial direction of a rotating shaft 202 .

[0123] like Figure 5 and Figure 6 As shown, in this embodiment, in this technical solution, the first magnetic component 110 is arranged on one side of the second magnetic component 120 in the axial direction of the rotating shaft 202, so that the structure is not arranged on the stator 206 component and the rotor 208 component of the electric component 200, and thus will not affect the function of the electric component 200, and can achieve the generation of compensating torque when the electric component 200 is running.

[0124] Specifically, at least one of the first compensation component 114 and the second compensation component 124 contains a permanent magnet, and the other contains a protruding iron core and / or a permanent magnet; wherein the permanent magnet forms a magnetic pole, and the protruding iron core forms a tooth. The circumferential angle occupied by the magnetic pole or the tooth of at least one of the first compensation component 114 and the second compensation component 124 is less than 360 degrees.

[0125] Specifically, the magnetic flux directions of the magnetic fields formed by the first compensation component 114 and the second compensation component 124 in the air gap are both axial, and the magnetic flux path is closed in a curved surface parallel to the rotating shaft 202 .

[0126] Embodiment six:

[0127] This embodiment provides a torque compensation assembly 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0128] The present invention provides a torque compensation component 100, wherein the first core 112 is fan-shaped, and the first compensation component 114 is arranged on at least one side of the first core 112 in the axial direction; the second core 122 is annular or fan-shaped, and the second compensation component 124 is arranged on at least one side of the second core 122 in the axial direction, and is arranged opposite to the first compensation component 114; and there is a gap between the first compensation component 114 and the second compensation component 124.

[0129] In this embodiment, in this technical solution, the first compensation component 114 is fan-shaped and arranged on at least one side of the first core 112 in the axial direction, and the second compensation component 124 is arranged on at least one side of the second core 122 in the axial direction, opposite to the first compensation component 114, and there is a gap between the first compensation component 114 and the second compensation component 124, so that when the second compensation component 124 approaches the first compensation component 114, a magnetic attraction, repulsion or interaction between the magnetic component and the magnetic teeth is generated, thereby generating a compensation torque.

[0130] Specifically, when the first compensation component 114 wraps the second compensation component 124 therein, the second compensation component 124 may be disposed on both sides of the second core 122 , and the first compensation component 114 is disposed on the inner side of the first core 112 .

[0131] Embodiment seven:

[0132] This embodiment provides a torque compensation assembly 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0133] The present invention provides a torque compensation component 100, wherein the number of second compensation components 124 is multiple and respectively arranged on both sides of the second core 122 in the axial direction; the number of first magnetic components 110 is two groups and respectively arranged on both sides of the second magnetic component 120 in the axial direction.

[0134] like Figure 7 and Figure 8 As shown, in this embodiment, the number of second compensation components 124 is multiple, and they are respectively arranged on both sides of the second core 122 in the axial direction; the number of first magnetic components 110 is two groups, and they are respectively arranged on both sides of the second magnetic component 120 in the axial direction, so that the magnetic attraction, repulsion force between the first compensation component 114 and the second compensation component 124, or the interaction between the magnetic component and the magnetic teeth can produce a larger compensation torque.

[0135] Specifically, there is one second compensation component 124 , which is disposed on both sides of the second core 122 in the axial direction; there are two groups of first magnetic components 110 , which are disposed on both sides of the second magnetic component 120 in the axial direction.

[0136] Specifically, there are two second compensation components 124 , which are respectively disposed on both sides of the second core 122 in the axial direction; there are two groups of first magnetic components 110 , which are respectively disposed on both sides of the second magnetic component 120 in the axial direction.

[0137] Embodiment eight:

[0138] This embodiment provides a torque compensation assembly 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0139] The present invention provides a torque compensation component 100 , wherein the first cores 112 of the two groups of first magnetic components 110 are of an integrated structure.

[0140] like Figure 8 and Fig. 9 As shown, in this embodiment, the first cores 112 of the two groups of first magnetic components 110 are an integrated structure, so that the first magnetic component 110 can wrap the second magnetic component 120 therein, thereby making the assembly process simpler and the structure more stable, and also allowing the first compensation components 114 in the two groups of first magnetic components 110 to be installed on one first core 112.

[0141] Embodiment nine:

[0142] This embodiment provides a torque compensation assembly 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0143] The present invention provides a torque compensation component 100, wherein the number of first compensation components 114 is multiple and respectively arranged on both sides of the first core 112 in the axial direction; the number of second magnetic components 120 is two groups and respectively arranged on both sides of the first magnetic component 110 in the axial direction.

[0144] In this embodiment, there are multiple first compensation components 114, which are respectively arranged on both sides of the first core 112 in the axial direction; there are two groups of second magnetic components 120, which are respectively arranged on both sides of the first magnetic component 110 in the axial direction, so that the magnetic attraction, repulsion force between the first compensation component 114 and the second compensation component 124 or the interaction between the magnetic components and the magnetic teeth can produce a larger compensation torque.

[0145] Specifically, there is one first compensation component 114 , which is disposed on both sides of the first core 112 in the axial direction; there are two groups of second magnetic components 120 , which are disposed on both sides of the first magnetic component 110 in the axial direction.

[0146] Specifically, there are two first compensation components 114 , which are respectively disposed on both sides of the first core 112 in the axial direction; there are two groups of second magnetic components 120 , which are respectively disposed on both sides of the first magnetic component 110 in the axial direction.

[0147] Embodiment ten:

[0148] This embodiment provides a torque compensation assembly 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0149] The present invention provides a torque compensation component 100, wherein the first compensation component 114 includes a group of first magnetic components; the second compensation component 124 includes at least two groups of second magnetic components, and the at least two groups of second magnetic components are arranged at intervals along the circumference of the second iron core 122; wherein, when the second magnetic component 120 rotates relative to the first magnetic component 110, at least two groups of second magnetic components alternately act with a group of first magnetic components.

[0150] like Fig.10 and Fig.11 As shown, in this embodiment, the first compensation component 114 includes a group of first magnetic components; the second compensation component 124 includes at least two groups of second magnetic components, and the at least two groups of second magnetic components are arranged at intervals along the circumference of the second core 122; wherein, when the second magnetic component 120 rotates relative to the first magnetic component 110, at least two groups of second magnetic components act alternately on a group of first magnetic components, so that the number of poles of the first compensation component 114 is 1, and the number of poles of the second compensation component 124 is 2 (the number of pole pairs is 1), and the fundamental wave period number of the generated compensation torque is still 1. Compared with only one group of first compensation components 114 and only one group of second compensation components 124, during the operation of the electric component 200, the second compensation component 124 is rotated to achieve alternating action with the first transmission component, thereby making the generated compensation torque larger.

[0151] Specifically, the first compensation component 114 includes a group of first magnetic components; the second compensation component 124 includes at least four groups of second magnetic components, and the at least four groups of second magnetic components are arranged at circumferential intervals along the second core 122; wherein, when the second magnetic component 120 rotates relative to the first magnetic component 110, at least four groups of second magnetic components alternately act on one group of first magnetic components.

[0152] Specifically, the first compensation component 114 includes a group of first magnetic components; the second compensation component 124 includes at least six groups of second magnetic components, and the at least six groups of second magnetic components are arranged at circumferential intervals along the second core 122; wherein, when the second magnetic component 120 rotates relative to the first magnetic component 110, at least six groups of second magnetic components alternately act on one group of first magnetic components.

[0153] Specifically, the first compensation component 114 includes a group of first magnetic components; the second compensation component 124 includes at least multiple groups of second magnetic components, and at least multiple groups of second magnetic components are arranged at circumferential intervals along the second core 122; wherein, when the second magnetic component 120 rotates relative to the first magnetic component 110, at least multiple groups of second magnetic components alternately act on a group of first magnetic components.

[0154] Embodiment eleven:

[0155] This embodiment provides a torque compensation assembly 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0156] The present invention provides a torque compensation assembly 100, wherein the first compensation component 114 includes at least one first magnetic component; and / or the second compensation component 124 includes at least one second magnetic component.

[0157] In this embodiment, the first compensation component 114 includes at least one first magnetic component; the second compensation component 124 includes at least one second magnetic component, so that the structure can constitute a multi-section composite structure, thereby making it possible to conveniently adjust the harmonic content of the compensation torque.

[0158] Specifically, the first compensation component 114 includes two first magnetic components; the second compensation component 124 includes two second magnetic components, and the two first magnetic components and the two second magnetic components may be arranged in a staggered combination.

[0159] Specifically, the first compensation component 114 includes three first magnetic components; the second compensation component 124 includes three second magnetic components, and the three first magnetic components and the three second magnetic components may be arranged in a staggered combination.

[0160] Specifically, the first compensation component 114 includes a plurality of first magnetic components; the second compensation component 124 includes a plurality of second magnetic components, and the plurality of first magnetic components and the plurality of second magnetic components may be arranged in a staggered combination.

[0161] Embodiment 12:

[0162] This embodiment provides a torque compensation assembly 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0163] The present invention provides a torque compensation component 100, wherein the number of first magnetic components 110 is multiple, and the multiple groups of first magnetic components 110 are arranged axially; the number of second magnetic components 120 is multiple, and the multiple groups of second magnetic components 120 are arranged axially.

[0164] like Fig.12 As shown, in this embodiment, the first magnetic assembly 110 and the second magnetic assembly 120 are arranged in multiple groups and arranged along the axial direction, thereby achieving the effect of increasing the compensation torque.

[0165] Embodiment 13:

[0166] This embodiment provides a torque compensation assembly 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0167] The present invention provides a torque compensation component 100, wherein one of the first compensation component 114 and the second compensation component 124 is a magnetic component, and the other compensation component is a magnetically conductive tooth.

[0168] like Fig. 9 As shown, in this embodiment, the first compensation component 114 and the second compensation component 124, one compensation component is a magnetic component, and the other compensation component is a magnetic tooth, that is, the magnetic tooth is a magnetic material that can interact with the magnetic component. When the electric component 200 is running, when the second rotating component rotates close to the first rotating component, due to the attraction between the magnetic component and the magnetic tooth, the magnetic component has an attraction to the magnetic tooth, thereby generating a compensation torque.

[0169] Specifically, the first compensation component 114 is a magnetic component, and the second compensation component 124 is a magnetic tooth. When the electric component 200 is running, when the second rotating component rotates close to the first rotating component, due to the attraction between the magnetic component and the magnetic tooth, the first compensation component 114 has an attractive force on the second compensation component 124, thereby generating a compensation torque.

[0170] Specifically, the second compensation component 124 is a magnetic component, and the first compensation component 114 is a magnetic tooth. When the electric component 200 is running, when the second rotating component rotates close to the first rotating component, due to the attraction between the magnetic component and the magnetic tooth, the second compensation component 124 has an attractive force on the first compensation component 114, thereby generating a compensation torque.

[0171] Specifically, the arrangement of the permanent magnets in the first compensation component 114 and the second compensation component 124 is flexible and diverse, including but not limited to a coreless structure, a Halbach array structure, a surface-mounted structure in which the permanent magnets are installed on the surface of the core, and a built-in structure in which the permanent magnets are installed in the core slots, that is, the permanent magnet arrangement methods of conventional permanent magnet motors can be easily transplanted and used.

[0172] Specifically, the structural styles of the teeth in the first compensation component 114 and the second compensation component 124 are flexible and diverse, and it is only necessary to form a protrusion in the air gap so that the air gap magnetic permeability in the circumferential direction is unevenly distributed; in particular, according to the above definition, an iron core with uniform thickness occupying a certain range of circumferential angles relative to the air in the circumferential direction also belongs to the tooth.

[0173] Embodiment 14:

[0174] The present invention provides an electric component 200, including the above-mentioned torque compensation component 100, so the electric component 200 has all the beneficial effects of any of the above-mentioned technical solutions.

[0175] like Fig.13 As shown, in this embodiment, there is an air gap between the first magnetic component 110 and the second magnetic component 120, the first magnetic component 110 is connected to the support member of the electric component 200, and the second magnetic component 120 is connected to the rotating shaft 202 of the electric component 200, so that when the electric component 200 is working, the electric component 200 drives the piston to rotate and compress the gas, and the second magnetic component also rotates synchronously and rotates relative to the first magnetic component, thereby realizing the installation and fixation of the first magnetic component 110 and the second magnetic component 120. When the electric component 200 is working, the compensatory torque is generated by the magnetic attraction, repulsion or interaction between the first magnetic component 110 and the second magnetic component 120, and the torque can be compensated through the structure of the electric component 200 itself, so that the output torque of the electric component 200 can change with the gas compression process of the electric component 200, thereby avoiding the torque imbalance of the electric component 200, reducing the speed fluctuation of the electric component 200, and thus reducing vibration and noise. Especially when the electric component 200 is working at low frequency and low speed, the speed fluctuation of the electric component 200 can be better reduced, and the vibration and noise can be reduced, thereby improving the low-frequency performance of the electric component 200.

[0176] In addition, the single-cylinder compressor has the advantages of simple structure and low cost, and can be widely used in refrigeration equipment such as air conditioners and refrigerators. Especially when the electric component 200 is a single-cylinder compressor, due to the large load torque fluctuation of the single-cylinder compressor, if torque compensation is not performed, there will be obvious speed fluctuation problems, generating vibration and noise and reducing reliability, seriously affecting the low-frequency performance of the compressor. The present application compensates the torque of the compressor through the torque compensation component 100, thereby better reducing the speed fluctuation, as well as reducing vibration and noise, and improving the low-frequency performance of the single-cylinder compressor.

[0177] Moreover, compared with the conventional method of generating compensation torque by regulating the motor current through electronic control, there is no need to introduce additional compensation current, nor will it cause a decrease in the efficiency of the electric drive system, and the required torque compensation can be met.

[0178] The number of poles formed by the permanent magnets in the first magnetic assembly 110 and the second magnetic assembly 120 is 1 or the number of pole pairs is 1, and the number of teeth formed by the protruding cores in the first magnetic assembly 110 and the second magnetic assembly 120 is 1. The magnetic poles of the first magnetic assembly 110 and the second magnetic assembly 120 interact with each other, or the magnetic poles and the teeth interact with each other to form a compensation torque. For each rotation of the electric assembly 200, the fundamental wave period number of the compensation torque is 1.

[0179] When the electric component 200 is running, the second magnetic component 120 rotates synchronously with the electric component 200 and rotates relative to the first magnetic component 110. When the magnetic pole or tooth on the second magnetic component 120 approaches the magnetic pole or tooth on the first magnetic component 110, the second magnetic component 120 and the first magnetic component 110 form a positive torque through magnetic attraction, repulsion, or the interaction between the magnetic component and the magnetic teeth; when the magnetic pole or tooth on the second magnetic component 120 is away from the magnetic pole or tooth on the first magnetic component 110, the direction of the magnetic attraction, repulsion, or the interaction between the magnetic component and the magnetic teeth is reversed to form a reverse torque. Thus, an alternating torque with a periodic change in direction and magnitude is generated. The compensation torque changes by one cycle every time the electric component 200 rotates one circle.

[0180] Embodiment 15:

[0181] This embodiment provides an electric component 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0182] The present invention provides an electric component 200, the support member is a shell 204, and the electric component 200 also includes: a stator 206, the stator 206 is arranged in the shell 204 and connected to the shell 204; a rotor 208, the rotor 208 is inserted in the stator 206, and the rotating shaft 202 is inserted in the rotor 208; a cylinder 210, the cylinder 210 includes a cylinder body and a piston, the cylinder body is connected to the shell 204, and the piston is connected to the rotating shaft 202.

[0183] like Fig.13As shown, in this embodiment, the stator 206 is arranged in the shell 204 and connected to the shell 204, the rotor 208 is inserted in the stator 206, and the rotating shaft 202 is inserted in the rotor 208; the cylinder 210 includes a cylinder body and a piston, the cylinder body is connected to the shell 204, and the piston is connected to the rotating shaft 202, thereby realizing the installation and fixation of the stator 206, the rotor 208 and the rotating shaft 202. When the electric component 200 is running, the stator 206 and the rotor 208 generate torque according to the principle of a permanent magnet synchronous motor, thereby providing initial power for the cylinder of the electric component 200 to drive the piston to rotate and compress the gas.

[0184] Embodiment 16:

[0185] The present invention provides an electrical device, including the above-mentioned electric component 200, so the electric component 200 has all the beneficial effects of any of the above-mentioned technical solutions.

[0186] like Fig.13 As shown, in this embodiment, there is an air gap between the first magnetic component 110 and the second magnetic component 120, the first magnetic component 110 is connected to the support member of the electric component 200, and the second magnetic component 120 is connected to the rotating shaft 202 of the electric component 200, so that when the electric component 200 is working, the electric component 200 drives the piston to rotate and compress the gas, and the second magnetic component also rotates synchronously and rotates relative to the first magnetic component, thereby realizing the installation and fixation of the first magnetic component 110 and the second magnetic component 120. When the electric component 200 is working, the compensatory torque is generated by the magnetic attraction, repulsion or interaction between the first magnetic component 110 and the second magnetic component 120, and the torque can be compensated through the structure of the electric component 200 itself, so that the output torque of the electric component 200 can change with the gas compression process of the electric component 200, thereby avoiding the torque imbalance of the electric component 200, reducing the speed fluctuation of the electric component 200, and thus reducing vibration and noise. Especially when the electric component 200 is working at low frequency and low speed, the speed fluctuation of the electric component 200 can be better reduced, and the vibration and noise can be reduced, thereby improving the low-frequency performance of the electric component 200.

[0187] In addition, the single-cylinder compressor has the advantages of simple structure and low cost, and can be widely used in refrigeration equipment such as air conditioners and refrigerators. Especially when the electric component 200 is a single-cylinder compressor, due to the large load torque fluctuation of the single-cylinder compressor, if torque compensation is not performed, there will be obvious speed fluctuation problems, generating vibration and noise and reducing reliability, seriously affecting the low-frequency performance of the compressor. The present application compensates the torque of the compressor through the torque compensation component 100, thereby better reducing the speed fluctuation, as well as reducing vibration and noise, and improving the low-frequency performance of the single-cylinder compressor.

[0188] Moreover, compared with the conventional method of generating compensation torque by regulating the motor current through electronic control, there is no need to introduce additional compensation current, nor will it cause a decrease in the efficiency of the electric drive system, and the required torque compensation can be met.

[0189] The number of poles formed by the permanent magnets in the first magnetic assembly 110 and the second magnetic assembly 120 is 1 or the number of pole pairs is 1, and the number of teeth formed by the protruding cores in the first magnetic assembly 110 and the second magnetic assembly 120 is 1. The magnetic poles of the first magnetic assembly 110 and the second magnetic assembly 120 interact with each other, or the magnetic poles and the teeth interact with each other to form a compensation torque. For each rotation of the electric assembly 200, the fundamental wave period number of the compensation torque is 1.

[0190] When the electric component 200 is running, the second magnetic component 120 rotates synchronously with the electric component 200 and rotates relative to the first magnetic component 110. When the magnetic pole or tooth on the second magnetic component 120 approaches the magnetic pole or tooth on the first magnetic component 110, the second magnetic component 120 and the first magnetic component 110 form a positive torque through magnetic attraction, repulsion, or the interaction between the magnetic component and the magnetic teeth; when the magnetic pole or tooth on the second magnetic component 120 is away from the magnetic pole or tooth on the first magnetic component 110, the direction of the magnetic attraction, repulsion, or the interaction between the magnetic component and the magnetic teeth is reversed to form a reverse torque. Thus, an alternating torque with a periodic change in direction and magnitude is generated. The compensation torque changes by one cycle every time the electric component 200 rotates one circle.

[0191] In the claims, specification and drawings of the present invention, the term "multiple" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, which is only for the purpose of more conveniently describing the present invention and making the description process simpler, rather than indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation, so these descriptions cannot be understood as limiting the present invention; the terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the specific circumstances of the above data.

[0192] In the claims, specification and drawings of the present invention, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification and drawings of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0193] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A torque compensation component, characterized in that: The torque compensation assembly is used for an electric assembly, the electric assembly includes a support and a rotating shaft, and the torque compensation assembly includes: A first magnetic component, the first magnetic component comprising a first core and a first compensation component, the first core is connected to the support member, and the first compensation component is connected to the first core; a second magnetic component, the second magnetic component comprising a second core and a second compensation component, the second core is connected to the rotating shaft, and the second compensation component is connected to the second core; Wherein, the second compensation component is arranged on one side of the first compensation component, and the first compensation component and the second compensation component generate a compensation torque through the action of a magnetic field; The first compensation component is arranged in a fan shape; The second compensation component is arranged in a ring shape or a fan shape; The circumferential angle of the first compensating component and the second compensating component is less than 360°; The first magnetic component and the second magnetic component are arranged along the axial direction of the rotating shaft; The first core is fan-shaped, and the first compensation component is arranged on at least one side of the first core in the axial direction; The second core is annular or fan-shaped, and the second compensation component is arranged on at least one side of the second core in the axial direction and is arranged opposite to the first compensation component; A gap is formed between the first compensation component and the second compensation component.

2. The torque compensation assembly according to claim 1, characterized in that: There are multiple second compensation components, which are respectively arranged on both sides of the second core in the axial direction; The number of the first magnetic components is two, which are respectively arranged on two sides of the second magnetic component in the axial direction.

3. The torque compensation assembly according to claim 2, characterized in that: The first cores of the two groups of the first magnetic components are an integrated structure.

4. The torque compensation assembly according to claim 1, characterized in that: There are multiple first compensation components, which are respectively arranged on both sides of the first core in the axial direction; The number of the second magnetic components is two, and they are respectively arranged on two sides of the first magnetic component in the axial direction.

5. The torque compensation assembly according to any one of claims 1 to 4, characterized in that: The first compensating component includes a set of first magnetic components; The second compensation component comprises at least two groups of second magnetic components, and the at least two groups of second magnetic components are arranged at intervals along the circumferential direction of the second core; Wherein, when the second magnetic component rotates relative to the first magnetic component, the at least two groups of second magnetic components act alternately with the group of first magnetic components.

6. The torque compensation assembly according to any one of claims 1 to 4, characterized in that: The first compensating component comprises at least one first magnetic component; and / or The second compensation component includes at least one second magnetic component.

7. The torque compensation assembly according to any one of claims 1 to 4, characterized in that: The number of the first magnetic components is multiple, and the multiple groups of the first magnetic components are arranged along the axial direction; The number of the second magnetic components is multiple, and the multiple groups of the second magnetic components are arranged along the axial direction.

8. The torque compensation assembly according to any one of claims 1 to 4, characterized in that: Of the first compensating component and the second compensating component, one compensating component is a magnetic component, and the other compensating component is a magnetically conductive tooth.

9. An electric component, characterized in that: Comprising a torque compensation assembly as claimed in any one of claims 1 to 8.

10. The electric component according to claim 9, characterized in that: The support member is a housing, and the electric assembly further comprises: A stator, the stator is disposed in the housing and connected to the housing; A rotor, wherein the rotor is inserted in the stator, and the rotating shaft is inserted in the rotor; The cylinder comprises a cylinder body and a piston, wherein the cylinder body is connected to the housing, and the piston is connected to the rotating shaft.

11. An electrical device, characterized in that: Comprising the electric component as claimed in claim 9 or 10.

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