Compressor

Abstract

The utility model provides a compressor. The compressor comprises a front shell; the first end of the middle shell is connected with the front shell to form an exhaust cavity, and an air inlet is formed in the shell wall of the second end of the middle shell; the rear shell is connected with the second end of the middle shell, the first side face, facing the middle shell, of the rear shell is provided with an auxiliary bearing seat located in the center, a section of arc-shaped slope area surrounding the auxiliary bearing seat and a plane area which shrinks inwards in the direction away from the middle shell, and the second side face of the rear shell is provided with a control cavity for containing a heating component. The slope area is connected with the air inlet and the plane area, the plane area is provided with a first side located in the exhaust cavity and a second side located in the control cavity, a heating component is arranged on the second side of the plane area, and part of refrigerant entering the exhaust cavity flows along the slope area in a wall attaching mode to reach the first side of the plane area so as to dissipate heat of the heating component. According to the utility model, the heat dissipation efficiency of heating components can be obviously enhanced, the pressure loss of refrigerants is reduced, the running performance of the compressor is improved, and the service life of the compressor is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of refrigeration equipment, in particular to a compressor. Background Art

[0002] The compressor controller integrates a variety of heating elements, and the overall temperature is relatively high. It only relies on conventional shell heat conduction to dissipate heat, which has low heat dissipation performance and can easily affect the service life of the compressor and may cause damage to the controller.

[0003] At present, the existing technologies for compressor heat dissipation include: Patent CN115013287A, which forms a channel from the air inlet through the chamber to the air outlet, and one or more fins divide the channel into several flow channels. One end of the fin is set close to the air inlet, and one end of the fin is bent in the direction of the air inlet. The fin is streamlined, and the curvature of at least a part of the fin is consistent with the curvature of the inner wall of the adjacent air inlet cavity. The patent uses the refrigerant to flow from the air inlet through the middle shell and the air outlet to the exhaust channel. During this period, the refrigerant exchanges heat with the rear shell in the flow channel, and the rear shell absorbs a large amount of heat emitted from the core power device installation area, thereby reducing the temperature of the entire controller, improving the service life of the compressor, and avoiding damage to the controller. In patent CN115013287A, there is a certain height difference between the refrigerant inlet and the bottom of the rear shell, and the refrigerant cannot completely reach the bottom of the shell, and may be sucked into the compression chamber before reaching the position of the heating component, resulting in low heat exchange efficiency and poor heat dissipation effect.

[0004] In the prior art, when the compressor refrigerant enters the cavity from the inlet and impacts the motor assembly, the lower half of the refrigerant flows into the guide groove of the rear shell. However, when there is a large drop between the inlet and the heat-generating component in the axial direction, the refrigerant can hardly flow into the bottom of the guide groove, and the refrigerant flow rate at the bottom of the guide groove is very small, which seriously reduces the cooling effect on the bottom of the guide groove.

[0005] Therefore, the utility model provides a compressor. Utility Model Content

[0006] In view of the problems in the prior art, the purpose of the present invention is to provide a compressor that overcomes the difficulties of the prior art, can significantly enhance the heat dissipation efficiency of heat-generating components, reduce the pressure loss of the refrigerant, and improve the operating performance and service life of the compressor.

[0007] An embodiment of the utility model provides a compressor, comprising:

[0008] front shell;

[0009] A middle shell, wherein a first end of the middle shell is connected to the front shell to form an exhaust cavity for accommodating the motor assembly, and a shell wall of a second end of the middle shell is provided with an air inlet;

[0010] A rear shell is connected to the second end of the middle shell, and the rear shell is provided with a centrally located auxiliary bearing seat, an arc-shaped slope area surrounding the auxiliary bearing seat, and a plane area that shrinks inward in a direction away from the middle shell on the first side surface of the middle shell facing the rear shell. A control chamber for accommodating heating components is provided on the second side surface of the rear shell away from the middle shell, and the slope area connects the air inlet and the plane area. The plane area has a first side located in the exhaust chamber and a second side located in the control chamber. The heating component is arranged on the second side of the plane area, and at least part of the refrigerant entering the exhaust chamber from the air inlet flows along the wall of the slope area to reach the first side of the plane area, so as to dissipate heat from the heating component through heat exchange with the plane area.

[0011] Preferably, it also includes: a plurality of guide fins protruding from the first side surface of the rear shell, the guide fins sequentially passing through the slope area and the first side of the plane area, the guide fins separating the slope area and the plane area into a plurality of refrigerant guide chute, and the guide fins transferring the heat of the first side of the plane area along the surface of the refrigerant guide chute.

[0012] Preferably, the guide fins each have a concentric arc trajectory surrounding the auxiliary bearing seat.

[0013] Preferably, the angles between the slope bottom surface of each of the refrigerant diverting chute and the plane where the planar area is located are the same.

[0014] Preferably, the angle between the slope bottom surface of the refrigerant guide chute and the plane where the planar area is located ranges from 15° to 30°.

[0015] Preferably, the closer the slope bottom surface of the refrigerant diversion chute is to the auxiliary bearing seat, the smaller the angle between the slope bottom surface of the refrigerant diversion chute and the plane where the planar area is located; the farther the slope bottom surface of the refrigerant diversion chute is from the auxiliary bearing seat, the larger the angle between the slope bottom surface of the refrigerant diversion chute and the plane where the planar area is located.

[0016] Preferably, the angle between the innermost circle of the refrigerant diversion chute and the plane where the planar area is located is 15°, and the angle between the outermost circle of the refrigerant diversion chute and the plane where the planar area is located is 30°.

[0017] Preferably, the motor assembly and the inlet of the refrigerant guide chute each occupy a local space of the refrigerant direct injection channel formed based on the air inlet.

[0018] Preferably, a first end of the slope area is connected to a local edge of the air inlet closest to the rear shell, and a second end of the slope area is connected to an overlapping area of ​​a projection of the heat-generating component based on the plane area.

[0019] Preferably, at least a portion of the surface of the heat-generating component is in face-to-face contact with the second side surface of the planar area.

[0020] The compressor of the utility model can significantly enhance the heat dissipation efficiency of heat-generating components, reduce the pressure loss of the refrigerant, and improve the operating performance and service life of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objectives and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

[0022] Figure 1 It is an axial cross-sectional view of the compressor of the present utility model.

[0023] Figure 2 It is a radial cross-sectional view of the compressor of the present utility model.

[0024] Figure 3 It is a cross-sectional view of the innermost guide groove in the compressor of the present utility model.

[0025] Figure 4 It is a cross-sectional view of the outermost guide groove in the compressor of the present invention.

[0026] Figure 5 It is a schematic diagram of the upper end of the middle slope section of the compressor of the present utility model.

[0027] Figure 6 It is a schematic diagram of the lower end of the middle slope section of the compressor of the present utility model.

[0028] Reference numerals

[0029] 1 Middle shell

[0030] 2 Back cover

[0031] 3. Heat generating components

[0032] 4 Slope area

[0033] 5 Plane area

[0034] 6 Air Inlet

[0035] 7 Motor assembly

[0036] 8 Guide fins

[0037] 13 Auxiliary bearing seat

[0038] 14 Refrigerant diversion chute DETAILED DESCRIPTION

[0039] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. Instead, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0040] Figure 1 It is an axial cross-sectional view of the compressor of the present utility model. Figure 2 FIG. 2 is a radial cross-sectional view of the compressor of the utility model. Figures 1 to 2 As shown, the compressor of the utility model comprises: a front shell (not shown in the figure), a middle shell 1, and a rear shell 2. Among them, the first end of the middle shell 1 is connected to the front shell to form an exhaust chamber for accommodating the motor assembly 7, and the shell wall of the second end of the middle shell 1 is provided with an air inlet 6. The rear shell 2 is connected to the second end of the middle shell 1, and the rear shell 2 is provided with a central auxiliary bearing seat 13, a circular arc-shaped slope area 4 around the auxiliary bearing seat 13, and a plane area 5 that shrinks inward in the direction away from the middle shell 1 on the first side of the middle shell 1. The rear shell 2 is provided with a control chamber for accommodating the heating element 3 on the second side away from the middle shell 1. The slope area 4 connects the air inlet 6 and the plane area 5. The plane area 5 has a first side located in the exhaust chamber and a second side located in the control chamber. The heating element 3 is arranged on the second side of the plane area 5. At least part of the refrigerant entering the exhaust chamber from the air inlet 6 flows along the wall of the slope area 4 to reach the first side of the plane area 5, so as to dissipate the heat of the heating element 3 through heat exchange with the plane area 5. Since the compressor controller integrates a variety of heating elements, the overall temperature is high. Low heat dissipation performance can easily affect the service life of the compressor and may also cause damage to the controller. The utility model uses imported low-temperature refrigerant to guide the refrigerant to the bottom of the rear shell, and uses the bottom of the rear shell as a heat conduction medium. The refrigerant exchanges heat with the rear shell and takes away the heat of the heat-generating components on the back of the rear shell. In the area close to the power module, the utility model has a downhill trend in the guide groove to guide the refrigerant closer to the back of the power module to improve the cooling effect.

[0041] In a preferred embodiment, it further comprises: a plurality of guide fins 8 protruding from the first side surface of the rear shell 2, the guide fins 8 sequentially passing through the first side of the slope area 4 and the plane area 5, the guide fins 8 separating the slope area 4 and the plane area 5 into a plurality of refrigerant guide chute 14, and the guide fins 8 transferring the heat of the first side of the plane area 5 along the surface of the refrigerant guide chute 14. The refrigerant guide chute 14 formed by the guide fins 8 in the utility model can provide a corresponding flow channel for the flow of the refrigerant, and ensure that the flow channel is a combination of a straight groove body and an arc groove body, so as not to reduce the pressure and flow rate of the refrigerant. The guide fins 8 are integrally formed on the first side of the rear shell 2, and can more fully extend the heat of the first side of the plane area 5 to the refrigerant guide chute 14. The bottom surface (slope surface) of each refrigerant guide chute 14 and the inner side surface of the groove body of the refrigerant guide chute 14 (the side surface of the guide fins 8) can form a heat dissipation surface, which greatly increases the heat dissipation area of ​​the first side of the plane area 5, and also increases the bottom flow rate of the refrigerant guide chute 14, so that the refrigerant can take away a large amount of heat through heat exchange during the flow along the refrigerant guide chute 14, thereby achieving a stronger heat dissipation effect on the heat-generating components 3. Moreover, compared with the conventional plane guide chute, the refrigerant guide chute 14 (inclined guide chute) formed by the guide fins 8 and the slope area 4 is more conducive to enhancing the state of the refrigerant flowing based on the wall of the slope area 4, avoiding the refrigerant from leaving the refrigerant guide chute 14 too early, and further enhancing the effect of guiding the refrigerant to the plane area 5 for heat dissipation.

[0042] In a preferred embodiment, one end of the guide fin 8 extends to the air inlet 6, and the other end passes through the arc-shaped slope area 4 and the plane area 5 in sequence, ensuring that the refrigerant guide groove 14 can be connected to the air inlet 6, and the refrigerant guide groove 14 can completely cover the entire slope area 4 and the entire plane area 5, but is not limited to this.

[0043] In a preferred embodiment, the guide fins 8 all have concentric arc tracks around the auxiliary bearing seat 13, but the present invention is not limited thereto.

[0044] In a preferred embodiment, the angles between the slope bottom surface of each refrigerant diverting chute 14 and the plane where the plane area 5 is located are the same, but not limited thereto.

[0045] In a preferred embodiment, the angle between the slope bottom surface of the refrigerant guide chute 14 and the plane where the plane area 5 is located ranges from 15° to 30°, but is not limited thereto.

[0046] In a preferred embodiment, the angle between the slope bottom surface of the refrigerant diversion chute 14 closer to the auxiliary bearing seat 13 and the plane where the plane area 5 is located is smaller. The angle between the slope bottom surface of the refrigerant diversion chute 14 farther away from the auxiliary bearing seat 13 and the plane where the plane area 5 is located is larger. In this embodiment, since the length of the refrigerant diversion chute 14 closer to the auxiliary bearing seat 13 is shorter, the angle between its corresponding slope bottom surface and the plane where the plane area 5 is located is smaller; conversely, since the length of the refrigerant diversion chute 14 farther away from the auxiliary bearing seat 13 is longer, the angle between its corresponding slope bottom surface and the plane where the plane area 5 is located is larger, so as to avoid the refrigerant from leaving the refrigerant diversion chute 14 too early and enhance the cooling effect of the outer ring, but it is not limited to this.

[0047] Figure 3 It is a cross-sectional view of the innermost guide groove in the compressor of the present utility model. Figure 4 is a cross-sectional view of the outermost guide groove in the compressor of the utility model. In a preferred embodiment, see Figure 3 , 4 In a preferred embodiment, the angle a between the innermost slope of the slope area 4 and the plane where the plane area 5 is located is 15°, and the angle b between the outermost slope of the slope area 4 and the plane where the plane area 5 is located is 30°, but not limited to this.

[0048] In a preferred embodiment, the inlet of the motor assembly 7 and the refrigerant diversion chute 14 each occupy a partial space of the refrigerant direct injection channel formed based on the air inlet 6. In this embodiment, when the refrigerant is directly injected into the control chamber from the air inlet 6, a part of it is directly injected into the motor assembly 7, and the other part directly enters the refrigerant diversion chute 14, thereby realizing the diversion of the refrigerant and realizing the separate cooling of different cooling objects, thereby improving the utilization efficiency of the refrigerant.

[0049] Figure 5 It is a schematic diagram of the upper end of the middle slope section of the compressor of the present utility model. Figure 6 Schematic diagram of the lower end of the middle slope section of the compressor of the utility model. In a preferred embodiment, see Figure 5 , 6 The first end of the slope area 4 is close to the local edge of the air inlet 6 away from the front shell side, so as to guide more refrigerant into the refrigerant guide chute 14. The second end of the slope area 4 is close to the overlapping area of ​​the projection of the heat-generating component 3 based on the plane area 5, so as to enhance the effect of heat exchange, but not limited to this.

[0050] In a preferred embodiment, at least a portion of the surface of the heat generating component 3 is in face-to-face contact with the second side surface of the planar region 5, but the invention is not limited thereto. Specific implementation methods of the present invention are as follows:

[0051] The compressor of the utility model is applied to a vehicle-mounted horizontal compressor, comprising: a front shell (not shown in the figure), a middle shell 1, a rear shell 2 and a plurality of guide fins 8. The first end of the middle shell 1 is connected to the front shell to form an exhaust cavity for accommodating a motor assembly 7, and the shell wall of the second end of the middle shell 1 is provided with an air inlet 6. The rear shell 2 is connected to the second end of the middle shell 1, and a secondary bearing seat 13 is arranged at the center of the first side surface of the rear shell 2 facing the middle shell 1. A control chamber for accommodating the heating element 3 is arranged on the second side of the rear shell 2 facing away from the middle shell 1. The first side surface of the rear shell 2 facing the middle shell 1 is also provided with an arc-shaped slope area 4 surrounding the secondary bearing seat 13 and a plane area 5 that shrinks inward in a direction away from the middle shell 1. The slope area 4 connects the air inlet 6 and the plane area 5. The plane area 5 has a first side located in the exhaust cavity and a second side located in the control chamber. The heating element 3 is arranged on the second side of the plane area 5. At least part of the refrigerant entering the exhaust cavity from the air inlet 6 flows along the wall of the slope area 4 to reach the first side of the plane area 5, so as to dissipate heat from the heating element 3 through heat exchange with the plane area 5. The guide fin 8 protrudes from the first side surface of the rear shell 2, and the guide fin 8 passes through the first side of the slope area 4 and the plane area 5 in sequence. The guide fin 8 divides the slope area 4 and the plane area 5 into a plurality of refrigerant guide chute 14, and the guide fin 8 transfers the heat of the first side of the plane area 5 along the surface of the refrigerant guide chute 14. One end of the guide fin 8 extends to the air inlet 6, and the other end passes through the arc-shaped slope area 4 and the plane area 5 in sequence, ensuring that the refrigerant guide chute 14 can be connected to the air inlet 6, and the refrigerant guide chute 14 can completely cover the entire slope area 4 and the entire plane area 5. The guide fins 8 all have concentric arc trajectories around the auxiliary bearing seat 13. The angle between the slope bottom surface of the refrigerant guide chute 14 and the plane where the plane area 5 is located ranges from 15° to 30°. The closer the refrigerant diversion chute 14 is to the auxiliary bearing seat 13, the smaller the angle between the slope bottom surface and the plane where the plane area 5 is located. The farther the refrigerant diversion chute 14 is from the auxiliary bearing seat 13, the larger the angle between the slope bottom surface and the plane where the plane area 5 is located. In this embodiment, since the length of the refrigerant diversion chute 14 closer to the auxiliary bearing seat 13 is shorter, the angle between its corresponding slope bottom surface and the plane where the plane area 5 is located is smaller; conversely, since the length of the refrigerant diversion chute 14 farther from the auxiliary bearing seat 13 is longer, the angle between its corresponding slope bottom surface and the plane where the plane area 5 is located is larger, so as to avoid the refrigerant from leaving the refrigerant diversion chute 14 too early and enhance the cooling effect of the outer ring. The angle a between the innermost circle slope of the slope area 4 and the plane where the plane area 5 is located is 15°, and the angle b between the outermost circle slope of the slope area 4 and the plane where the plane area 5 is located is 30°.The entrances of the motor assembly 7 and the refrigerant diversion chute 14 each occupy a local space of the refrigerant direct injection channel formed based on the air inlet 6. When the refrigerant is directly sprayed into the control chamber from the air inlet 6, a part of it is directly sprayed to the motor assembly 7, and the other part directly enters the refrigerant diversion chute 14, thereby realizing the diversion of the refrigerant and realizing the separate cooling of different cooling objects, thereby improving the utilization efficiency of the refrigerant. The first end of the slope area 4 is close to the local edge of the air inlet 6 away from the front shell side, so as to guide more refrigerant into the refrigerant diversion chute 14. The second end of the slope area 4 is close to the overlapping area of ​​the projection of the heating element 3 based on the plane area 5, thereby enhancing the effect of heat exchange. At least part of the surface of the heating element 3 is in face-to-face contact with the second side of the plane area 5.

[0052] The refrigerant guide chute 14 formed by the guide fins 8 in this embodiment can not only provide a corresponding flow channel for the flow of the refrigerant, and ensure that the flow channel is a combination of a straight groove body and an arc groove body, but also increase the bottom flow velocity of the refrigerant guide chute 14, so as not to reduce the pressure and flow velocity of the refrigerant in the control chamber. The guide fins 8 are integrally formed on the first side of the rear shell 2, and can more fully extend the heat of the first side of the plane area 5 to the refrigerant guide chute 14. The bottom surface (slope surface) of each refrigerant guide chute 14 and the inner side surface of the groove body of the refrigerant guide chute 14 (the side surface of the guide fin 8) can form a heat dissipation surface, which greatly increases the heat dissipation area of ​​the first side of the plane area 5, so that the refrigerant can take away a large amount of heat through heat exchange during the flow along the refrigerant guide chute 14, thereby achieving a stronger heat dissipation effect on the heat-generating components 3.

[0053] When the compressor refrigerant enters the exhaust chamber from the air inlet 6, the upper half of the refrigerant (entering from the upper area of ​​the air inlet 6 away from the slope area 4) flows directly to the motor assembly 7 (also has a cooling effect on the motor assembly 7), and the lower half of the refrigerant is guided by the slope area 4 and flows along the wall, thereby flowing into the refrigerant guide groove 14 of the rear shell 2. The utility model has a large slope design for the shell bottom of the rear shell 2 (which is also the bottom of the refrigerant guide chute 14) at the starting point below the air inlet 6, and the slope range is controlled within 30°. The starting position of the upper end of the slope is close to the air inlet 6, and the ending position of the lower end of the slope is close to the location of the heat-generating components (plane area 5), ​​so that the refrigerant flows along the slope wall of the refrigerant guide chute 14, and the outer surface (including) and the plane area 5 of the entire refrigerant guide chute 14 are cooled over a large area, so that the rectification of the refrigerant fluid is greatly improved, especially at the bottom of the refrigerant guide chute 14. The flow velocity becomes larger, and at the same time, the refrigerant is guided in the guide chute to flow to the location of the heat-generating components, thereby improving the overall heat dissipation effect.

[0054] The slope area 4 in the utility model can improve the rectification of the refrigerant, reduce pressure loss, and improve performance; the large slope is conducive to increasing the bottom flow velocity, improving heat dissipation, and has a wide range of applications. Compressors of various displacements, structures, and refrigerants can adopt this structure. The upper end starting position of the slope area 4 in the utility model is close to the inlet, and the lower end ending position of the slope is close to the location of the heat-generating components. (The best solution if structural conditions permit is: the upper end of the slope is close to the inlet, and the lower end of the slope is close to the heat-generating components.) The slope in the utility model makes the refrigerant adhere to the wall and rectify, and the guide groove guides the refrigerant to flow to the heat-generating components. In summary, the purpose of the utility model is to provide a compressor that can significantly enhance the heat dissipation efficiency of the heat-generating components, reduce the pressure loss of the refrigerant, and improve the operating performance and service life of the compressor.

[0055] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A compressor, characterized in that: include: front shell; A middle shell (1), wherein a first end of the middle shell (1) is connected to the front shell to form an exhaust cavity for accommodating a motor assembly (7), and a shell wall at a second end of the middle shell (1) is provided with an air inlet (6); A rear shell (2) is connected to the second end of the middle shell (1); the rear shell (2) is provided with a centrally located auxiliary bearing seat (13), a circular arc-shaped slope area (4) surrounding the auxiliary bearing seat (13), and a plane area (5) shrinking inward in a direction away from the middle shell (1) on a first side surface of the middle shell (1); a control chamber for accommodating a heating element (3) is provided on a second side surface of the rear shell (2) away from the middle shell (1); the slope area (4) is connected to the air inlet (6) and the plane area (5); the plane area (5) has a first side located at the exhaust cavity and a second side located at the control chamber; the heating element (3) is arranged on the second side of the plane area (5); at least part of the refrigerant entering the exhaust cavity from the air inlet (6) flows along the wall of the slope area (4) to reach the first side of the plane area (5), so as to dissipate heat from the heating element (3) through heat exchange with the plane area (5).

2. The compressor according to claim 1, characterized in that Also includes: A plurality of guide fins (8) protrude from a first side surface of the rear shell (2), and the guide fins (8) sequentially pass through the slope area (4) and the first side of the plane area (5), and the guide fins (8) separate the slope area (4) and the plane area (5) into a plurality of refrigerant guide chute (14), and the guide fins (8) transfer the heat of the first side of the plane area (5) along the surface of the refrigerant guide chute (14).

3. The compressor according to claim 2, characterized in that The guide fins (8) all have concentric arc tracks surrounding the auxiliary bearing seat (13).

4. The compressor according to claim 2, characterized in that The angles between the slope bottom surface of each of the refrigerant diverting chute (14) and the plane where the planar area (5) is located are the same.

5. The compressor according to claim 4, characterized in that The value range of the angle between the slope bottom surface of the refrigerant diversion chute (14) and the plane where the plane area (5) is located is 15° to 30°.

6. The compressor according to claim 2, characterized in that The closer the sloped bottom surface of the refrigerant diversion chute (14) is to the auxiliary bearing seat (13), the smaller the angle between the sloped bottom surface of the refrigerant diversion chute (14) and the plane where the planar area (5) is located; the farther the sloped bottom surface of the refrigerant diversion chute (14) is from the auxiliary bearing seat (13), the larger the angle between the sloped bottom surface of the refrigerant diversion chute (14) and the plane where the planar area (5) is located.

7. The compressor according to claim 6, characterized in that The angle between the innermost circle of the refrigerant diversion chute (14) and the plane where the planar area (5) is located is 15°, and the angle between the outermost circle of the refrigerant diversion chute (14) and the plane where the planar area (5) is located is 30°.

8. The compressor according to claim 2, characterized in that The inlet of the motor assembly (7) and the inlet of the refrigerant guide chute (14) each occupy a local space of the refrigerant direct injection channel formed based on the air inlet (6).

9. The compressor according to claim 1, characterized in that The first end of the slope area (4) is connected to the local edge of the air inlet (6) on the side closest to the rear shell (2), and the second end of the slope area (4) is connected to the overlapping area of ​​the projection of the heat-generating component (3) based on the plane area (5).

10. The compressor according to claim 1, characterized in that At least a portion of the surface of the heat-generating component (3) is in face-to-face contact with the second side surface of the planar area (5).

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