Compressor and air conditioner

Abstract

The application provides a compressor and an air conditioner, the compressor comprising: a shell, an inside of the shell being provided with a positioning structure, the positioning structure dividing the inside of the shell into a first containing cavity and a second containing cavity; a stator core, the stator core being arranged in the first containing cavity, and at least part of the positioning structure being connected with a first end of the stator core; a snap ring assembly, the snap ring assembly being arranged in the first containing cavity, the snap ring assembly comprising a plurality of clamping portions, the snap ring assembly being connected with a second end of the stator core through the clamping portions, and a first backflow channel being formed between adjacent clamping portions and between part of an outer wall of the stator core and part of a surface of the first containing cavity; and a pump body assembly, the pump body assembly being arranged in the second containing cavity, and the first backflow channel being arranged in communication with the second containing cavity. The path of vibration transmission of the stator core to the shell can be blocked, an efficient oil return channel can be constructed to improve the oil return efficiency of the compressor, and the problems of excessive vibration and noise of the motor part of the compressor and low heat dissipation efficiency of the motor can be solved.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more specifically, to a compressor and an air conditioner. Background Technology

[0002] As customer expectations for user experience continue to rise, so too are the requirements for noise and vibration control in air conditioning compressors. Low noise and low vibration are now key design considerations for air conditioning compressors. One of the main sources of vibration in a compressor is the motor. During operation, the electromagnetic force exerted by the motor acts on the air gap between the stator and rotor, generating rotational force waves or pulsating force waves, causing the motor stator to vibrate. Currently, most compressors use an interference fit between the motor stator and the compressor housing. The vibration of the motor stator is transmitted through the compressor housing, thus radiating vibration and generating noise.

[0003] There is currently no effective solution to the above problems. Summary of the Invention

[0004] The main objective of this invention is to provide a compressor and an air conditioner to solve the problems of excessive vibration and noise in the motor part of the compressor in the prior art, as well as low heat dissipation efficiency of the motor.

[0005] To achieve the above objectives, according to one aspect of the present invention, a compressor is provided, comprising: a housing, wherein a positioning structure is disposed inside the housing, the positioning structure dividing the interior of the housing into a first receiving cavity and a second receiving cavity; a stator core, wherein the stator core is disposed within the first receiving cavity, and at least a portion of the positioning structure is connected to a first end of the stator core; a retaining ring assembly, wherein the retaining ring assembly is disposed within the first receiving cavity, the retaining ring assembly including a plurality of retaining portions, the retaining ring assembly being connected to a second end of the stator core through the retaining portions, and a first return channel being formed between adjacent retaining portions and a portion of the outer wall of the stator core and a portion of the surface of the first receiving cavity; and a pump body assembly, wherein the pump body assembly is disposed within the second receiving cavity, and the first return channel is disposed in communication with the second receiving cavity.

[0006] Furthermore, the positioning structure includes multiple positioning teeth spaced apart circumferentially along the housing, with the length direction of each positioning tooth extending along the axial direction of the housing, and the stator core connected to the housing through the multiple positioning teeth.

[0007] Furthermore, the outer circumferential surface of the stator core is provided with multiple ribs, each rib having a first positioning groove at its first end that mates with the positioning teeth, and a second positioning groove at its second end that mates with the snap-fit ​​part.

[0008] Furthermore, the retaining ring assembly includes: a retaining ring body, the outer peripheral surface of the retaining ring body is provided with multiple retaining parts, the multiple retaining parts are protruding at both ends of the retaining ring body, and in the retaining parts facing the stator core, two adjacent retaining parts are arranged with the retaining ring body and the stator core to form a confluence port, and the confluence port is connected to the first return channel.

[0009] Furthermore, multiple guide strips are provided on the inner circumferential surface of the retaining ring body, which are used to guide the refrigerant to the manifold.

[0010] Furthermore, multiple guide strips are set up one-to-one with multiple snap-fit ​​parts.

[0011] Furthermore, at least one of the multiple guide strips includes multiple guide component segments, and at least two adjacent guide component segments are arranged at an angle.

[0012] Furthermore, a groove is formed between adjacent ribs, and a second return channel is formed between the groove and the surface of the first receiving cavity. The first return channel and the second return channel are connected through a confluence port.

[0013] Furthermore, an outlet is formed between the adjacent positioning teeth and the stator core, and the second receiving cavity is connected to the second return channel through the outlet.

[0014] Furthermore, the inner diameter of the second receiving cavity, the inner diameter of the retaining ring body, the distance from the groove wall of the first positioning groove on the side near the geometric center of the stator core to the geometric center of the stator core, and the distance from the groove wall of the second positioning groove on the side near the geometric center of the stator core to the geometric center of the stator core are all R1. The inner diameter of the first receiving cavity and the outer diameter of the retaining ring body are both R2. The distance from the groove wall of the first positioning groove on the side away from the geometric center of the stator core to the geometric center of the stator core, and the distance from the groove wall of the second positioning groove on the side away from the geometric center of the stator core to the geometric center of the stator core are both R3. The outer diameter of the stator core is R, where R1 < R3 < R < R2.

[0015] Furthermore, R2-R>1mm, and / or R3-R1>2mm, and / or R-R3>1mm.

[0016] According to another aspect of the present invention, an air conditioner is provided, including a compressor, wherein the compressor is the compressor described above.

[0017] According to the technical solution of this invention, the compressor includes a housing, a stator core, a retaining ring assembly, and a pump body assembly. A positioning structure divides the interior of the housing into a first receiving cavity and a second receiving cavity. The stator core is disposed within the first receiving cavity, and at least a portion of the positioning structure is connected to the first end of the stator core. The retaining ring assembly is disposed within the first receiving cavity and includes multiple retaining portions. The retaining ring assembly is connected to the second end of the stator core through these retaining portions. A first return flow channel is formed between adjacent retaining portions and a portion of the outer wall of the stator core, as well as a portion of the surface of the first receiving cavity. The pump body assembly is disposed within the second receiving cavity, and the first return flow channel... The compressor is configured to communicate with the second receiving cavity and connected to the stator core via a positioning structure and retaining ring assembly. This creates a gap between the stator core and the housing, blocking the path of stator core vibration transmitted to the housing. This significantly reduces radial vibration and noise in the compressor motor. Furthermore, the first return channel is configured to communicate with the second receiving cavity, creating a highly efficient and rapid oil return channel. This improves the compressor's oil return efficiency, reduces wear on pump body parts, and extends service life. At the same time, the gap between the stator and the housing increases the stator's heat dissipation area, improving heat dissipation capacity and solving the problems of excessive vibration and noise in the compressor motor and low motor heat dissipation efficiency. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 A schematic diagram of the structure of a first embodiment of a compressor according to the present invention is shown;

[0020] Figure 2 A schematic diagram of a second embodiment of a compressor according to the present invention is shown;

[0021] Figure 3 A schematic diagram of a third embodiment of a compressor according to the present invention is shown;

[0022] Figure 4 A schematic diagram of a fourth embodiment of a compressor according to the present invention is shown;

[0023] Figure 5 A schematic diagram of a fifth embodiment of a compressor according to the present invention is shown;

[0024] Figure 6 A schematic diagram of a sixth embodiment of a compressor according to the present invention is shown;

[0025] Figure 7 The invention is shown Figure 1 Enlarged view of point A.

[0026] The above figures include the following reference numerals:

[0027] 10. Shell; 11. First receiving cavity; 12. Second receiving cavity;

[0028] 13. Positioning structure; 131. Positioning teeth;

[0029] 141. First return channel; 142. Second return channel; 143. Confluence port; 144. Outlet port;

[0030] 20. Stator core;

[0031] 21. Raised rib; 211. First positioning groove; 212. Second positioning groove

[0032] 22. Groove;

[0033] 30. Snap ring assembly; 300. Snap ring body; 31. Snap-fit ​​part; 32. Guide bar. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0037] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0038] Combination Figures 1 to 7 In a specific embodiment of the present invention, a compressor is provided.

[0039] Specifically, the compressor includes: a housing 10, the housing 10 having a positioning structure 13 inside, the positioning structure 13 dividing the interior of the housing 10 into a first receiving cavity 11 and a second receiving cavity 12; a stator core 20, the stator core 20 being disposed within the first receiving cavity 11, at least a portion of the positioning structure 13 being connected to a first end of the stator core 20; a retaining ring assembly 30, the retaining ring assembly 30 being disposed within the first receiving cavity 11, the retaining ring assembly 30 including a plurality of retaining parts 31, the retaining ring assembly 30 being connected to a second end of the stator core 20 through the retaining parts 31, and a first return channel 141 being formed between adjacent retaining parts 31 and a portion of the outer wall of the stator core 20 and a portion of the surface of the first receiving cavity 11; and a pump body assembly, the pump body assembly being disposed within the second receiving cavity 12, the first return channel 141 being configured to communicate with the second receiving cavity 12.

[0040] Combination Figures 1 to 3In this embodiment, the compressor includes a housing 10, a stator core 20, a retaining ring assembly 30, and a pump body assembly. The housing 10 has a positioning structure 13 inside, which divides the interior of the housing 10 into a first receiving cavity 11 and a second receiving cavity 12. The stator core 20 is disposed in the first receiving cavity 11, and at least a portion of the positioning structure 13 is connected to the first end of the stator core 20. The retaining ring assembly 30 is disposed in the first receiving cavity 11 and includes multiple engaging portions 31. The retaining ring assembly 30 is connected to the second end of the stator core 20 through the engaging portions 31. The connection between the stator core 20 and the housing 10 via the positioning structure 13 and the retaining ring assembly 30 creates a gap between the stator core 20 and the housing 10. The gap blocks the path of vibration transmission from the stator core 20 to the housing 10, thereby significantly reducing radial vibration and noise in the compressor motor. Furthermore, a first return channel 141 is formed between adjacent snap-fit ​​parts 31 and part of the outer wall of the stator core 20, as well as the surface of part of the first receiving cavity 11. The pump body assembly is disposed within the second receiving cavity 12, and the first return channel 141 is connected to the second receiving cavity 12, constructing a highly efficient and rapid oil return channel. This improves the compressor's oil return efficiency, reduces wear on pump body parts, and extends service life. Simultaneously, the gap between the stator and the housing increases the stator's heat dissipation area, improving heat dissipation capacity and solving the problems of excessive vibration and noise in the compressor motor and low motor heat dissipation efficiency.

[0041] Furthermore, the positioning structure 13 includes a plurality of positioning teeth 131 spaced circumferentially along the housing 10, with each positioning tooth 131 extending along the axial direction of the housing 10 in its longitudinal direction. The stator core 20 is connected to the housing 10 via the plurality of positioning teeth 131. Figure 3 As shown, in this embodiment, the positioning structure 13 includes a plurality of positioning teeth 131 spaced circumferentially along the housing 10, combined with Figure 1 As shown, this arrangement leaves a gap between the stator core 20 and the housing 10, thereby blocking the path of vibration transmission from the stator core 20 to the housing 10, which can significantly reduce radial vibration and noise in the compressor motor section.

[0042] Furthermore, the outer peripheral surface of the stator core 20 is provided with a plurality of ribs 21, the first end of each rib 21 is provided with a first positioning groove 211 that cooperates with the positioning teeth 131, and the second end of each rib 21 is provided with a second positioning groove 212 that cooperates with the snap-fit ​​part 31.

[0043] Combination Figures 4 to 5As shown, in the above embodiment, the first end of the rib 21 is engaged with the positioning tooth 131 by the first positioning groove 211, and the second end of the rib 21 is engaged with the snap-fit ​​part 31 by the second positioning groove 212. The snap-fit ​​fixing method replaces the interference heat sleeve method to fasten the stator core 20, so that when the stator core 20 is fixed to the housing 10, a gap is left between the stator core 20 and the housing 10, which can effectively reduce the radial vibration and noise of the compressor motor part.

[0044] Furthermore, the retaining ring assembly 30 includes: a retaining ring body 300, the outer peripheral surface of the retaining ring body 300 is provided with a plurality of retaining portions 31, the plurality of retaining portions 31 are protrudingly disposed at both ends of the retaining ring body 300, and in the retaining portions 31 facing the stator core 20, two adjacent retaining portions 31 are arranged with the retaining ring body 300 and the stator core 20 to form a confluence port 143, and the confluence port 143 is connected to the first return channel 141.

[0045] Combination Figure 6 and Figure 7 As shown, in the above embodiment, in the snap-fit ​​portion 31 facing the stator core 20, two adjacent snap-fit ​​portions 31 are arranged with the snap ring body 300 and the stator core 20 to form a manifold 143. The manifold 143 is connected to the first return channel 141. This arrangement facilitates the flow of refrigerant into the snap ring assembly 30 into the first return channel 141 through the manifold 143.

[0046] In another embodiment of the present invention, the thickness of the snap-fit ​​portion 31 at the end near the protrusion 21 is less than the thickness of the snap-fit ​​portion 31 at the end away from the protrusion 21, so that the end of the snap-fit ​​portion 31 away from the protrusion 21 allows the refrigerant to flow better into the first return channel 141, and the end of the snap-fit ​​portion 31 near the protrusion 21 better conducts the refrigerant through the manifold 143 into the first return channel 141.

[0047] Furthermore, a plurality of guide strips 32 are provided on the inner circumferential surface of the retainer body 300. The guide strips 32 are used to guide the refrigerant to the manifold 143. In this embodiment, this arrangement helps to guide the refrigerant flowing into the retainer assembly 30 to the manifold 143 through the guide strips 32, and from the manifold 143 into the first return channel 141, which helps the refrigerant to return quickly and increases the heat dissipation area.

[0048] Furthermore, multiple guide strips 32 are provided in a one-to-one correspondence with multiple snap-fit ​​parts 31. Combined with... Figure 6 As shown, in the above embodiment, this configuration can enhance the flow guiding effect of the guide strip 32 and improve the refrigerant return efficiency of the compressor.

[0049] Furthermore, at least one of the plurality of guide strips 32 includes a plurality of guide component segments, and at least two adjacent guide component segments are arranged at an angle. Figure 6 As shown, in this embodiment, two adjacent flow guide groups can be configured as an inverted V-shaped structure, which facilitates the flow of refrigerant from the flow guide strip 32 to the manifold 143, and then into the first return channel 141, so that the refrigerant can quickly return.

[0050] Furthermore, a groove 22 is formed between adjacent ribs 21, and a second return channel 142 is formed between the groove 22 and the surface of the first receiving cavity 11. The first return channel 141 and the second return channel 142 are connected through a confluence port 143. Figure 1 , Figures 4 to 7 As shown, a second return channel 142 is formed between the groove 22 and the surface of the first receiving cavity 11. The first return channel 141 and the second return channel 142 are connected through the manifold 143. This arrangement increases the heat dissipation area while ensuring the refrigerant return efficiency of the compressor, improves the heat dissipation capacity of the stator core 20, and further increases the reliability of the compressor.

[0051] Furthermore, an outlet 144 is formed between adjacent positioning teeth 131 and stator core 20, and the second receiving cavity 12 is connected to the second return channel 142 through the outlet 144. This arrangement allows the refrigerant to quickly return from the second return channel 142 to the second receiving cavity 12 through the outlet 144, ensuring the lubrication effect of the pump assembly and improving the practicality of the compressor.

[0052] Furthermore, the inner diameter of the second receiving cavity 12, the inner diameter of the retaining ring body 300, the distance from the groove wall of the first positioning groove 211 near the geometric center of the stator core 20 to the geometric center of the stator core 20, and the distance from the groove wall of the second positioning groove 212 near the geometric center of the stator core 20 to the geometric center of the stator core 20 are all R1. The inner diameter of the first receiving cavity 11 and the outer diameter of the retaining ring body 300 are both R2. The distance from the groove wall of the first positioning groove 211 away from the geometric center of the stator core 20 to the geometric center of the stator core 20, and the distance from the groove wall of the second positioning groove 212 away from the geometric center of the stator core 20 to the geometric center of the stator core 20 are both R3. The outer diameter of the stator core 20 is R, where R1 < R3 < R < R2. This configuration allows for the use of a larger housing 10 in the compressor motor section to accommodate a stator core 20 with a larger outer diameter than the pump body assembly, thereby providing greater output torque and improving compressor performance.

[0053] Furthermore, R2-R>1mm, R3-R1>2mm, and R-R3>1mm. Specifically, R2-R>1mm ensures a sufficiently large gap between the stator core 20 and the housing 10 to significantly reduce radial vibration; R3-R1>2mm ensures the compressor's structural stability and prevents deformation; and R-R3>1mm ensures the tightness of the stator with the housing and retaining rings. The gap between the stator core 20 and the housing 10 creates a highly efficient and rapid oil return channel, greatly improving the compressor's oil return efficiency, ensuring lubrication of pump components, and increasing the heat dissipation area, thus enhancing the stator's heat dissipation capacity.

[0054] In another embodiment of the invention, the height of the positioning tooth 131 is equal to the height of the snap-fit ​​portion 31, which is H1. The depth of the first positioning groove 211 and the depth of the second positioning groove are both H2, wherein H1-H2≥2mm. This arrangement facilitates the flow of refrigerant from the manifold 143 and the outlet 144 into the second return channel 142 and the second receiving cavity 12, ensuring sufficient channel area for the manifold 143 and the outlet 144, guaranteeing the oil return speed, and improving the practicality of the compressor.

[0055] In another embodiment of the present invention, an air conditioner is provided, including a compressor, which is the compressor in the above embodiment.

[0056] Specifically, the compressor includes: a housing 10, the housing 10 having a positioning structure 13 inside, the positioning structure 13 dividing the interior of the housing 10 into a first receiving cavity 11 and a second receiving cavity 12; a stator core 20, the stator core 20 being disposed within the first receiving cavity 11, at least a portion of the positioning structure 13 being connected to a first end of the stator core 20; a retaining ring assembly 30, the retaining ring assembly 30 being disposed within the first receiving cavity 11, the retaining ring assembly 30 including a plurality of retaining parts 31, the retaining ring assembly 30 being connected to a second end of the stator core 20 through the retaining parts 31, and a first return channel 141 being formed between adjacent retaining parts 31 and a portion of the outer wall of the stator core 20 and a portion of the surface of the first receiving cavity 11; and a pump body assembly, the pump body assembly being disposed within the second receiving cavity 12, the first return channel 141 being configured to communicate with the second receiving cavity 12.

[0057] Combination Figures 1 to 3In this embodiment, the compressor includes a housing 10, a stator core 20, a retaining ring assembly 30, and a pump body assembly. The housing 10 has a positioning structure 13 inside, which divides the interior of the housing 10 into a first receiving cavity 11 and a second receiving cavity 12. The stator core 20 is disposed in the first receiving cavity 11, and at least a portion of the positioning structure 13 is connected to the first end of the stator core 20. The retaining ring assembly 30 is disposed in the first receiving cavity 11 and includes multiple engaging portions 31. The retaining ring assembly 30 is connected to the second end of the stator core 20 through the engaging portions 31. The connection between the stator core 20 and the housing 10 via the positioning structure 13 and the retaining ring assembly 30 creates a gap between the stator core 20 and the housing 10. The gap blocks the path of vibration transmission from the stator core 20 to the housing 10, thereby significantly reducing radial vibration and noise in the compressor motor. Furthermore, a first return channel 141 is formed between adjacent snap-fit ​​parts 31 and part of the outer wall of the stator core 20, as well as the surface of part of the first receiving cavity 11. The pump body assembly is disposed within the second receiving cavity 12, and the first return channel 141 is connected to the second receiving cavity 12, constructing a highly efficient and rapid oil return channel. This improves the compressor's oil return efficiency, reduces wear on pump body parts, and extends service life. Simultaneously, the gap between the stator and the housing increases the stator's heat dissipation area, improving heat dissipation capacity and solving the problems of excessive vibration and noise in the compressor motor and low motor heat dissipation efficiency.

[0058] The positioning structure 13 includes a plurality of positioning teeth 131 spaced circumferentially along the housing 10, combined with Figure 1 As shown, this arrangement leaves a gap between the stator core 20 and the housing 10, thereby blocking the path of vibration transmission from the stator core 20 to the housing 10, which can significantly reduce radial vibration and noise in the compressor motor section.

[0059] The first end of the protruding rib 21 is engaged with the positioning tooth 131 through the first positioning groove 211, and the second end of the protruding rib 21 is engaged with the snap-fit ​​part 31 through the second positioning groove 212. The snap-fit ​​fixing method replaces the interference heat sleeve method to fasten the stator core 20, so that when the stator core 20 is fixed to the housing 10, a gap is left between the stator core 20 and the housing 10, which can effectively reduce the radial vibration and noise of the compressor motor part.

[0060] The inner circumferential surface of the retainer body 300 is provided with multiple guide strips 32, which are used to guide the refrigerant to the manifold 143. In this embodiment, this arrangement helps to guide the refrigerant flowing into the retainer assembly 30 to the manifold 143 through the guide strips 32, and from the manifold 143 into the first return channel 141, which helps the refrigerant to return quickly and increases the heat dissipation area.

[0061] A groove 22 is formed between adjacent ribs 21, and a second return channel 142 is formed between the groove 22 and the surface of the first receiving cavity 11. The first return channel 141 and the second return channel 142 are connected through a confluence port 143. Figure 1 , Figures 4 to 7 As shown, a second return channel 142 is formed between the groove 22 and the surface of the first receiving cavity 11. The first return channel 141 and the second return channel 142 are connected through the manifold 143. This arrangement increases the heat dissipation area while ensuring the refrigerant return efficiency of the compressor, improves the heat dissipation capacity of the stator core 20, and further increases the reliability of the compressor.

[0062] An outlet 144 is formed between adjacent positioning teeth 131 and stator core 20, and the second receiving cavity 12 is connected to the second return channel 142 through the outlet 144. This arrangement allows the refrigerant to quickly return from the second return channel 142 to the second receiving cavity 12 through the outlet 144, ensuring the lubrication effect of the pump assembly and improving the practicality of the compressor.

[0063] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0064] The compressor includes a housing 10, a stator core 20, a retaining ring assembly 30, and a pump body assembly. The housing 10 has an internal positioning structure 13 that divides the interior of the housing 10 into a first receiving cavity 11 and a second receiving cavity 12. The stator core 20 is disposed within the first receiving cavity 11, and at least a portion of the positioning structure 13 is connected to the first end of the stator core 20. The retaining ring assembly 30 is disposed within the first receiving cavity 11 and includes multiple engaging portions 31. The retaining ring assembly 30 is connected to the second end of the stator core 20 through the engaging portions 31. The connection between the positioning structure 13 and the retaining ring assembly 30 and the stator core 20 creates a gap between the stator core 20 and the housing 10, preventing blockage. The path of vibration transmission from the stator core 20 to the housing 10 is optimized, thereby significantly reducing radial vibration and noise in the compressor motor section. Furthermore, a first return channel 141 is formed between adjacent snap-fit ​​portions 31 and a portion of the outer wall of the stator core 20, as well as the surface of a portion of the first receiving cavity 11. The pump assembly is disposed within the second receiving cavity 12, and the first return channel 141 is connected to the second receiving cavity 12, constructing a highly efficient and rapid oil return channel. This improves the compressor's oil return efficiency, reduces wear on pump parts, and extends service life. Simultaneously, the gap between the stator and the housing increases the stator's heat dissipation area, enhancing heat dissipation capacity and solving the problems of excessive vibration and noise in the compressor motor section and low motor heat dissipation efficiency.

[0065] The compressor refrigerant carried above the stator core 20 during operation flows through the first return channel 141 and the guide bar 32 to the confluence port 143, and then through the second return channel 142 back to the lower end of the stator core 20. It then flows into the second receiving cavity 12 through the outlet 144 and back to the pump body assembly, reducing the wear of pump body assembly parts and extending the service life of the compressor.

[0066] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0067] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0068] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A compressor, characterized in that, include: The housing (10) has a positioning structure (13) inside, which divides the interior of the housing (10) into a first receiving cavity (11) and a second receiving cavity (12). Stator core (20), the stator core (20) is disposed in the first receiving cavity (11), and at least part of the positioning structure (13) is connected to the first end of the stator core (20); A retaining ring assembly (30) is disposed in the first receiving cavity (11). The retaining ring assembly (30) includes a plurality of retaining parts (31). The retaining ring assembly (30) is connected to the second end of the stator core (20) through the retaining parts (31). A first return channel (141) is formed between adjacent retaining parts (31) and a portion of the outer wall of the stator core (20) and a portion of the surface of the first receiving cavity (11). A pump body assembly is disposed within the second receiving cavity (12), and the first return channel (141) is disposed in communication with the second receiving cavity (12); The retaining ring assembly (30) includes a retaining ring body (300). The outer peripheral surface of the retaining ring body (300) is provided with a plurality of retaining parts (31). Two adjacent retaining parts (31) are arranged with the retaining ring body (300) and the stator core (20) to form a confluence port (143). The confluence port (143) is connected to the first return channel (141). The outer peripheral surface of the stator core (20) is provided with a plurality of ribs (21). Adjacent ribs (21) form a groove (22). The groove (22) is arranged with the surface of the first receiving cavity (11) to form a second return channel (142). The first return channel (141) and the second return channel (142) are connected through the confluence port (143). The positioning structure (13) includes a plurality of positioning teeth (131) spaced circumferentially along the housing (10). The length direction of each positioning tooth (131) extends along the axial direction of the housing (10). The stator core (20) is connected to the housing (10) through the plurality of positioning teeth (131). An outlet (144) is formed between adjacent positioning teeth (131) and the stator core (20). The second receiving cavity (12) is connected to the second return channel (142) through the outlet (144).

2. The compressor according to claim 1, characterized in that, Each of the ribs (21) has a first positioning groove (211) at its first end that mates with the positioning tooth (131), and a second positioning groove (212) at its second end that mates with the snap-fit ​​part (31).

3. The compressor according to claim 2, characterized in that, Multiple locking portions (31) are protrudingly disposed at both ends of the retaining ring body (300) and in the locking portions (31) facing the stator core (20).

4. The compressor according to claim 3, characterized in that, The inner circumferential surface of the retaining ring body (300) is provided with a plurality of guide strips (32), which are used to guide the refrigerant to the manifold (143).

5. The compressor according to claim 4, characterized in that, The multiple guide strips (32) are provided in a one-to-one correspondence with the multiple snap-fit ​​parts (31).

6. The compressor according to claim 4, characterized in that, At least one of the plurality of guide strips (32) includes a plurality of guide component segments, and at least two adjacent guide component segments are arranged at an angle to each other.

7. The compressor according to claim 4, characterized in that, The inner diameter of the second receiving cavity (12), the inner diameter of the retaining ring body (300), the distance from the groove wall of the first positioning groove (211) near the geometric center of the stator core (20) to the geometric center of the stator core (20), and the distance from the groove wall of the second positioning groove (212) near the geometric center of the stator core (20) to the geometric center of the stator core (20) are all R1. The inner diameter of the first receiving cavity (11) and the outer diameter of the retaining ring body (300) are both R2. The distance from the groove wall of the first positioning groove (211) away from the geometric center of the stator core (20) to the geometric center of the stator core (20), and the distance from the groove wall of the second positioning groove (212) away from the geometric center of the stator core (20) to the geometric center of the stator core (20) are all R3. The outer diameter of the stator core (20) is R, where R1 < R3 < R < R2.

8. The compressor according to claim 7, characterized in that, R2-R>1mm, and / or, R3-R1>2mm, and / or, R-R3>1mm.

9. An air conditioner, comprising a compressor, characterized in that, The compressor is the compressor described in any one of claims 1 to 8.

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