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 the second end of the middle shell is provided with an air inlet; 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, an arc-shaped slope area and a plane area, the second side face, deviating from the middle shell, of the rear shell is provided with a control cavity for containing a heating element, and the slope area is connected with the air inlet and the plane area; a heating component is arranged on the second side of the control cavity in the plane area; the inclined flow guide cover is arranged in the exhaust cavity, the inclined flow guide cover covers the local area, close to the air inlet, of the slope area, the inclined flow guide cover and the slope area are at least encircled to jointly form an inclined flow guide header pipe, and the refrigerant flows in the inclined flow guide header pipe to reach the first side of the plane area. 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] The existing technologies for compressor heat dissipation are:

[0004] Patent CN214617019U adds a baffle to the bottom cover to guide the flow of the condensing agent, so that the condensing agent entering from the air inlet can pass through the baffle into the bearing of the bearing seat, and then be transferred to the PCB controller through the thermal grease, which plays a role in rapid heat dissipation and improves the service life of the scroll compressor. Among them, the baffle is in the shape of a spiral fin, which guides and aggregates the condensing agent, thereby improving the efficiency of the condensing agent entering the bearing seat.

[0005] Patent CN117536877A is divided into two flow channels through the deflector (it can also be divided into more flow channel outlets as needed), and the deflector has a first deflector outlet, which cooperates with the inlet of the inflow channel to allow the refrigerant in the refrigerant flow channel to flow into the first sub-flow channel. The deflector also has a second deflector outlet to allow the refrigerant in the refrigerant flow channel to flow into the second sub-flow channel. Among them, the cross-sectional area of ​​the first deflector outlet is larger than the cross-sectional area of ​​the second deflector outlet, so that more refrigerant can flow into the first sub-flow channel. Since the first sub-flow channel runs through the auxiliary bearing seat to dissipate heat, and the second sub-flow channel only dissipates heat around the auxiliary bearing seat on the surface of the rear shell body, the first sub-flow channel has a better heat dissipation effect, and mainly dissipates heat for the more important power module of the compressor, so more refrigerant is required.

[0006] Since patent CN214617019U only adds a baffle at the bottom cover, this design limits the scope of heat dissipation optimization. After the refrigerant enters the cavity, due to the suction of the compression chamber, the refrigerant cannot flow completely in the spiral guide plate and flows to the compression chamber early, limiting the overall heat dissipation effect.

[0007] Patent CN117536877A adopts a right-angle transition design, which may cause greater turbulence and eddy currents in the refrigerant flow process. The right-angle transition is prone to cause flow instability, affecting the rectification and cooling effect of the guide cover.

[0008] Therefore, the utility model provides a compressor. Utility Model Content

[0009] 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.

[0010] An embodiment of the utility model provides a compressor, comprising:

[0011] front shell;

[0012] 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;

[0013] a rear shell connected to the second end of the middle shell, the rear shell being provided with a centrally located auxiliary bearing seat, an arc-shaped sloped area surrounding the auxiliary bearing seat, and a plane area retracted inwardly away from the middle shell on a first side surface of the rear shell facing the middle shell, a control chamber for accommodating a heating element being provided on a second side surface of the rear shell away from the middle shell, the sloped area connecting the air inlet and the plane area, the plane area having a first side located at the exhaust chamber and a second side located at the control chamber, and the heating element being provided on the second side of the plane area; and

[0014] An inclined air guide cover is arranged in the exhaust chamber, and covers a local area of ​​the slope area close to the air inlet. The inclined air guide cover at least surrounds the slope area to form an inclined air guide main pipe, so that the refrigerant flows along the inclined air guide main pipe to reach the first side of the plane area.

[0015] Preferably, the first side of the rear shell is provided with a plurality of guide fins passing through the slope area and the plane area, a plurality of refrigerant guide inclined grooves surrounding the auxiliary bearing seat are formed between the guide fins, and the inclined guide main pipe separated by the guide fins forms a plurality of inclined guide sub-tubes.

[0016] Preferably, the inclined flow guide cover includes a first radial surface, an axial surface and a second radial surface, the axial surface and the first radial surface together enclose the air inlet to form a first inclined air channel, and the refrigerant flows along the axial surface to enter the inlet of the inclined flow guide tube.

[0017] Preferably, the fan-shaped second radial surface covers the partial notch of the refrigerant guide chute to form the inclined guide tubes arranged in concentric arcs, and the central angle corresponding to the fan-shaped area of ​​the second radial surface ranges from 90° to 180°.

[0018] Preferably, an inner rounded corner transition is formed between the first radial surface and the axial surface, and an outer rounded corner transition is formed between the axial surface and the second radial surface.

[0019] Preferably, it further comprises a sub-air ductor, which is arranged on the first radial surface and protrudes toward the side away from the axial surface, and the sub-air ductor covers a local area of ​​the air inlet away from the slope area.

[0020] Preferably, the angle between the axial plane and the rotation axis is in the range of 5° to 45°, and the angle between the second radial plane and the plane where the planar area is located is in the range of 5° to 45°.

[0021] Preferably, the guide fins all have concentric circular arc trajectories around the secondary bearing seat, and the guide fins transfer the heat of the first side of the planar area along the surface of the refrigerant guide chute, and the angle between the sloped bottom surface of the refrigerant guide chute and the plane where the planar area is located ranges from 15° to 30°.

[0022] Preferably, the first end of the slope area is in close contact with the local edge of the air inlet on the side closest to the rear shell, and the second end of the slope area is in close contact with the overlapping area of ​​the projection of the heat-generating component based on the plane area.

[0023] 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.

[0024] 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

[0025] 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.

[0026] Figure 1 This is a radial cross-sectional view of the first compressor of the utility model.

[0027] Figure 2 This is an axial cross-sectional view of the first compressor of the utility model.

[0028] Figure 3 It is a schematic diagram of the inclined air guide cover in the first compressor of the utility model.

[0029] Figure 4 It is a cross-sectional view of the oblique air guide cover in the first compressor of the utility model.

[0030] Figure 5 This is an axial cross-sectional view of the second compressor of the utility model.

[0031] Figure 6It is a schematic diagram of the inclined air guide cover in the second compressor of the utility model.

[0032] Reference numerals

[0033] 1 Middle shell

[0034] 2 Back cover

[0035] 3. Heat generating components

[0036] 4 Slope area

[0037] 5 Plane area

[0038] 6 Air Inlet

[0039] 7 Motor assembly

[0040] 8 Guide fins

[0041] 9 Tilt deflector

[0042] 9' tilted deflector

[0043] 90 Coverage Area

[0044] 91 First radial surface

[0045] 92 Axial surface

[0046] 93 Second radial surface

[0047] 94 First side

[0048] 95 Second side

[0049] 96 Raised air deflector

[0050] 10 Auxiliary bearing seat

[0051] 11 Refrigerant diversion chute

[0052] 12 Inclined guide tube DETAILED DESCRIPTION

[0053] 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.

[0054] Figure 1 This is a radial cross-sectional view of the first compressor of the utility model. Figure 2 This is an axial cross-sectional view of the first compressor of the utility model. Figure 3It is a schematic diagram of the inclined air guide cover in the first compressor of the utility model. Figure 4 It is a cross-sectional view of the oblique air guide cover in the first compressor of the utility model. Figures 1 to 4 As shown, the first compressor of the utility model comprises: a front shell (not shown in the figure), a middle shell 1, a rear shell 2 and an inclined air guide cover 9. 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 first side of the rear shell 2 facing the middle shell 1 is provided with a central auxiliary bearing seat 10, a circular arc-shaped slope area 4 surrounding the auxiliary bearing seat 10 and a plane area 5 that shrinks inward in the direction away from the middle shell 1, and the second side of the rear shell 2 facing away from the middle shell 1 is provided with a control chamber for accommodating the heating element 3, 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, and the heating element 3 is arranged on the second side of the plane area 5. The inclined air guide cover 9 is arranged in the exhaust cavity, and covers a local area of ​​the slope area 4 close to the air inlet 6. The inclined air guide cover 9 at least surrounds the slope area 4 to form an inclined air guide main pipe, so that the refrigerant flows along the inclined air guide main pipe to reach the first side of the plane area 5. The utility model uses imported low-temperature refrigerant, and transports the refrigerant to the bottom of the rear shell through the cooperation of the inclined air guide cover 9 and the slope area 4 in a closed pipeline structure. The bottom of the rear shell is used as a heat conduction medium, and the refrigerant exchanges heat with the surface of the rear shell to take away the heat of the heat generating components 3 on the back of the rear shell.

[0055] In a preferred embodiment, the first side surface of the rear shell 2 is provided with a plurality of guide fins 8 passing through the slope area 4 and the plane area 5, a plurality of refrigerant guide grooves 11 surrounding the auxiliary bearing seat 10 are formed between the guide fins 8, and a plurality of inclined guide sub-tubes 12 are formed by the inclined guide main pipe separated by the guide fins 8, but not limited to this.

[0056] In a preferred embodiment, the inclined air guide cover 9 includes a first radial surface 91, an axial surface 92 and a second radial surface 93. The axial surface 92 and the first radial surface 91 together enclose the air inlet 6 to form a first inclined air duct. The refrigerant flows along the wall of the axial surface 92 to enter the inlet of the inclined air guide tube 12. The cross-section of the air guide cover body in the utility model has a three-section continuous streamlined structure, which is beneficial for the refrigerant to run in a direction closer to the bottom of the guide groove, thereby improving the cooling effect, but is not limited to this.

[0057] In a preferred embodiment, the fan-shaped second radial surface 93 covers the partial notch of the refrigerant guide groove to form an inclined guide tube 12 arranged in concentric arcs, and the central angle c corresponding to the fan-shaped area of ​​the second radial surface 93 ranges from 90° to 180°, but is not limited thereto.

[0058] In a preferred embodiment, an inner chamfered transition is formed between the first radial surface 91 and the axial surface 92 , and an outer chamfered transition is formed between the axial surface 92 and the second radial surface 93 , but the present invention is not limited thereto.

[0059] In a preferred embodiment, the angle a between the axial surface 92 and the rotation axis ranges from 5° to 45°, but is not limited thereto.

[0060] In a preferred embodiment, the angle b between the second radial surface 93 and the plane where the planar area 5 is located ranges from 5° to 45°, but is not limited thereto.

[0061] In a preferred embodiment, the guide fins 8 have concentric arc trajectories around the secondary bearing seat 10, and the guide fins 8 transfer the heat of the first side of the planar area 5 along the surface of the refrigerant guide groove 11. The angle d between the slope bottom surface of the refrigerant guide groove 11 and the plane where the planar area 5 is located ranges from 15° to 30°, but is not limited to this.

[0062] In a preferred embodiment, the angle b between the second radial surface 93 and the plane where the planar area 5 is located is equal to the angle d between the slope bottom surface of the refrigerant guide groove 11 and the plane where the planar area 5 is located, so that the second radial surface 93 and the slope area 4 are parallel to each other to achieve smoother flow, improve the refrigerant rectification, and reduce pressure loss, but not limited to this.

[0063] In a preferred embodiment, the first end of the slope area 4 is close 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 close to the overlapping area of ​​the projection of the heat-generating component 3 based on the plane area 5, but not limited to this.

[0064] 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 present invention is not limited thereto.

[0065] Figure 5 This is an axial cross-sectional view of the second compressor of the utility model. Figure 6 It is a schematic diagram of the inclined air guide cover in the second compressor of the utility model. Figure 5 and 6As shown, since the air inlet 6 is a circular through hole, in order to better restrain the refrigerant flowing out of the air inlet 6, in a modified example, the inclined guide cover 9' of the second compressor of the utility model, in addition to the first radial surface 91, the axial surface 92, and the second radial surface 93, also includes a sub-guide cover 96, which is arranged on the first radial surface 91 and protrudes to the side away from the axial surface 92. The sub-guide cover 96 covers the local area of ​​the air inlet 6 away from the slope area 4, thereby strengthening the guidance of the refrigerant flowing into the local area of ​​the air inlet 6 away from the slope area 4 through the sub-guide cover 96, so that more refrigerant enters the inclined guide main pipe to enhance the heat dissipation effect on the heat-generating components. In addition, the height of the axial surface 92 can also be appropriately reduced, which is conducive to enhancing the guidance of the refrigerant, but not limited to this.

[0066] The utility model relates to a deflector design, which is in the form of a three-stage continuous streamline fan-shaped inclined deflector 9, including a first radial surface 91, an axial surface 92 and a second radial surface 93. The inclined deflector 9 is used to guide the refrigerant after entering the rear shell cavity, and its flow direction is to be pressed into the bottom of the rear shell, and then enter the refrigerant diversion chute (to prevent the refrigerant from leaving the bottom of the rear shell too early), and flow to the area corresponding to the heat-generating component 3 in the refrigerant diversion chute to effectively take away the heat, thereby achieving the purpose of heat dissipation. The first radial surface 91 envelops the air intake of the shell and is arranged above the air inlet to ensure that all the refrigerant can flow into the interior of the deflector. (In this case, due to avoiding the motor mounting bolts, the first radial surface 91 is lowered on both sides, but the middle air inlet is still kept at a high position to ensure that it is above the air inlet) The axial surface 92 is designed with an inclined angle a (5°<a<45°) with the vertical direction, so that the imported refrigerant can flow into the second radial surface 93 along the axial surface 92 attachment wall. The first radial surface 91 and the axial surface 92 are transitioned by inner chamfers, and the second radial surface 93 and the axial surface 92 are transitioned by outer chamfers, and the fillet angles are not less than R2, so as to achieve smoother flow, improve the rectification of the refrigerant, and reduce pressure loss. The second radial surface 93 is designed with an inclined angle b (5°<b<45°) with the horizontal direction to ensure that the refrigerant can flow smoothly into the guide groove and flow along the guide groove to the heating device, thereby taking away heat. In order to achieve the best drainage and heat dissipation effect, the bottom surface of the guide groove can be designed as a slope, which cooperates with the inclination angle of the second radial surface 93 to make it tilt in the same direction, thereby minimizing the pressure loss. In addition, the central angle c corresponding to the fan-shaped guide cover is controlled between 90° and 180°, and the first fan end surface (first side 94) and the second fan end surface (second side 95) can be selected according to the heat dissipation requirements. Single-sided blocking, single-sided opening or both-sided opening design, the refrigerant flows out from the opening. (In this case, the end face of the first fan face is blocked, and the end face of the second fan face is open. The refrigerant flows out from the opening of the end face of the second fan face and flows along the guide groove to the heating device.) Through the above design, the effective pressure injection of the refrigerant and the effective heat dissipation of the heat can be achieved.

[0067] The specific implementation of the utility model is as follows:

[0068] refer to Figures 1 to 4In the compressor of the utility model, the first end of the middle shell 1 is connected to the front shell to form an exhaust cavity 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 10, a circular arc-shaped slope area 4 surrounding the auxiliary bearing seat 10, 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 cavity and a second side located in the control cavity, and the heating element 3 is arranged on the second side of the plane area 5. The inclined air guide 9 is arranged in the exhaust cavity, and the inclined air guide 9 covers a local area of ​​the slope area 4 close to the air inlet 6. The inclined air guide 9 is at least surrounded by the slope area 4 to form an inclined air guide main pipe together, so that the refrigerant flows along the inclined air guide main pipe to reach the first side of the plane area 5. The first side surface of the rear shell 2 is provided with a plurality of guide fins 8 passing through the slope area 4 and the plane area 5, and a plurality of coolant guide chute 11 surrounding the auxiliary bearing seat 10 are formed between the guide fins 8, and the inclined guide main pipe separated by the guide fins 8 forms a plurality of inclined guide sub-pipes 12. The inclined guide cover 9 includes a first radial surface 91, an axial surface 92, a second radial surface 93 and a sub-guide cover 96. The axial surface 92 and the first radial surface 91 together enclose the air inlet 6 to form a first inclined air passage. The sub-guide cover 96 is arranged on the first radial surface 91 and protrudes toward the side away from the axial surface 92. The sub-guide cover 96 covers the local area of ​​the air inlet 6 away from the slope area 4, so that the sub-guide cover 96 strengthens the guidance of the coolant flowing from the local area of ​​the air inlet 6 away from the slope area 4, so that more coolant enters the inclined guide main pipe to improve the heat dissipation effect on the heat-generating components. The fan-shaped second radial surface 93 covers the partial notch of the refrigerant guide chute to form an inclined guide tube 12 arranged in concentric arcs. The angle range of the central angle c corresponding to the fan-shaped area of ​​the second radial surface 93 is 90° to 180°, for example: 95°. An inner chamfered transition is formed between the first radial surface 91 and the axial surface 92, and an outer chamfered transition is formed between the axial surface 92 and the second radial surface 93. The value range of the angle a between the axial surface 92 and the rotation axis is 5° to 45°, for example: 30°. The value range of the angle b between the second radial surface 93 and the plane where the planar area 5 is located is 5° to 45°, for example: 30°. The guide fins 8 all have concentric arc trajectories around the auxiliary bearing seat 10. The guide fins 8 transfer the heat of the first side of the planar area 5 along the surface of the coolant guide chute 11. The angle d between the slope bottom surface of the coolant guide chute 11 and the plane where the planar area 5 is located ranges from 15° to 30°, for example, 25°. The guide fins 8 and the auxiliary bearing seat 10 are integrally formed on the first side surface of the rear shell 2.The angle b between the second radial surface 93 and the plane where the plane area 5 is located is equal to the angle d between the slope bottom surface of the refrigerant diversion chute 11 and the plane where the plane area 5 is located, so that the second radial surface 93 and the slope area 4 are parallel to each other to enhance the flow rate of each inclined guide sub-tube 12. The first end of the slope area 4 is close to the local edge of the side of the air inlet 6 closest to the rear shell 2, and 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, and at least a part of the surface of the heat-generating component 3 and the second side surface of the plane area 5 form a face-to-face fit.

[0069] The utility model can optimize the flow path of the refrigerant through the three-stage continuous streamline design of the deflector cover, allowing the refrigerant to run closer to the bottom direction of the deflector groove, thereby improving the heat dissipation efficiency and effectively reducing the temperature of the controller heating element. The optimized streamline form in the utility model reduces the resistance and energy loss inside the fluid, reduces the energy consumption of the system, and helps to save energy. The continuous streamline structure in the utility model helps to reduce the turbulence phenomenon inside the fluid, thereby reducing the noise generated by the system, making the equipment run more smoothly and quietly. The utility model is flexibly designed according to specific application requirements and can be applied to different types of scroll compressors or other equipment, improving the versatility and applicability of the product.

[0070] In summary, the purpose of the utility model is to provide a compressor that 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.

[0071] 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) connected to the second end of the middle shell (1); the rear shell (2) is provided with a centrally located auxiliary bearing seat (10), a circular arc-shaped slope area (4) surrounding the auxiliary bearing seat (10), and a plane area (5) shrinking inward in a direction away from the middle shell (1) on a first side surface of the rear shell (2) facing 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 provided on the second side of the plane area (5); and An inclined air guide cover (9) is arranged in the exhaust chamber, and the inclined air guide cover (9) covers a local area of ​​the slope area (4) close to the air inlet (6). The inclined air guide cover (9) at least surrounds the slope area (4) to form an inclined air guide main pipe, so that the refrigerant flows along the inclined air guide main pipe to reach the first side of the plane area (5).

2. The compressor according to claim 1, characterized in that The first side surface of the middle shell (1) of the rear shell (2) is provided with a plurality of guide fins (8) passing through the slope area (4) and the plane area (5), a plurality of refrigerant guide inclined grooves (11) surrounding the auxiliary bearing seat (10) are formed between the guide fins (8), and the inclined guide main pipe separated by the guide fins (8) forms a plurality of inclined guide sub-tubes (12).

3. The compressor according to claim 2, characterized in that The inclined flow guide cover (9) includes a first radial surface (91), an axial surface (92) and a second radial surface (93); the axial surface (92) and the first radial surface (91) together surround the air inlet (6) to form a first inclined air passage; the refrigerant flows along the wall of the axial surface (92) to enter the inlet of the refrigerant guide chute of the inclined flow guide tube (12).

4. The compressor according to claim 3, characterized in that The fan-shaped second radial surface (93) covers the local notch of the refrigerant guide groove to form the inclined guide tube (12) arranged in concentric arcs, and the central angle corresponding to the fan-shaped area of ​​the second radial surface (93) ranges from 90° to 180°.

5. The compressor according to claim 3, characterized in that An inner rounded corner transition is formed between the first radial surface (91) and the axial surface (92), and an outer rounded corner transition is formed between the axial surface (92) and the second radial surface (93).

6. The compressor according to claim 3, characterized in that It also includes a sub-air deflector (96) which is arranged on the first radial surface (91) and protrudes toward a side away from the axial surface (92), and the sub-air deflector (96) covers a local area of ​​the air inlet (6) away from the slope area (4).

7. The compressor according to claim 3, characterized in that The angle between the axial surface (92) and the rotation axis is in the range of 5° to 45°, and the angle between the second radial surface (93) and the plane where the planar area (5) is located is in the range of 5° to 45°.

8. The compressor according to claim 2, characterized in that The guide fins (8) all have concentric arc trajectories around the secondary bearing seat (10), and the guide fins (8) transfer the heat of the first side of the planar area (5) along the surface of the refrigerant guide chute (11). The angle between the slope bottom surface of the refrigerant guide chute (11) and the plane where the planar area (5) is located ranges from 15° to 30°.

9. The compressor according to claim 1, characterized in that The first end of the slope area (4) is in close contact with 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 in close contact with 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).

Images