Compressor

Abstract

The utility model provides a compressor. The compressor comprises a front shell, a middle shell and a rear shell, the first end of the middle shell is connected with the front shell to form an exhaust cavity. The shell wall of 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, a section of arc-shaped slope area, a plane area and flow guide fins, the flow guide fins pass through the slope area and the plane area, and refrigerant flow guide chutes are formed between the flow guide fins. The second side face, deviating from the middle shell, of the rear shell is provided with a control cavity for containing the heating component, the refrigerant flow guide skewed slots and the projection, based on the first side face, of the heating component form overlapping areas respectively, and the heat dissipation areas corresponding to the refrigerant flow guide skewed slots comprise the overlapping areas. The sectional area of a groove body inlet of each refrigerant flow guide inclined groove and the area of the corresponding heat dissipation area are increased in the forward direction. 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 CN220227173U provides a compressor and a vehicle, the compressor includes: a control component, a boost component, a shell and a spacer; the shell is provided with a housing chamber; the spacer is provided in the housing chamber, and the spacer is used to separate the housing chamber into a first sub-housing chamber and a second sub-housing chamber that are connected along the axial direction of the shell; the boost component is provided in the second sub-housing chamber; wherein the control component is provided on the side wall of the first sub-housing chamber away from the second sub-housing chamber, and the first sub-housing chamber is provided with a guide channel and an air inlet connected to the guide channel, the projection of the guide channel along the axial direction overlaps with the projection of the control component along the axial direction, and the guide channel is connected to the second sub-housing chamber. Through the above method, the working efficiency and reliability of the compressor can be effectively improved. Based on this method, when the compressor takes in low-pressure refrigerant gas along the air inlet, the low-pressure refrigerant gas will flow along the guide channel through the area where the control component is located, and then enter the second sub-containing chamber, thereby effectively preventing the low-pressure refrigerant gas from being directly introduced into the second sub-containing chamber, and thus enabling the low-pressure refrigerant gas to effectively dissipate heat to the control component, thereby improving the working efficiency and reliability of the compressor.

[0005] Patent CN115013287A, this patent forms a channel from the air inlet through the chamber to the air outlet, one or more fins divide the channel into several flow channels, one end of the fin is arranged close to the air inlet, 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. This patent uses refrigerant to flow from the air inlet through the middle shell, the air outlet to the exhaust channel for discharge. 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, increasing the service life of the compressor, and avoiding damage to the controller.

[0006] 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 components 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. In addition, the inlet ends of the arc-shaped guide fins of the above two patents are also evenly spaced, and the flow distribution in each flow channel will vary with the angle or position of the air inlet, without considering that the flow distribution should meet the heat dissipation requirements.

[0007] Therefore, the utility model provides a compressor. Utility Model Content

[0008] 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.

[0009] An embodiment of the utility model provides a compressor, comprising:

[0010] front shell;

[0011] 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;

[0012] 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, a plane area shrinking inward in a direction away from the middle shell, and guide fins on the first side surface of the rear shell facing the middle shell. The guide fins pass through the slope area and the plane area in sequence, and a number of coolant guide grooves surrounding the auxiliary bearing seat are formed between the guide fins. A control chamber for accommodating heat-generating components is provided on the second side surface of the rear shell away from the middle shell, and the coolant guide grooves and the heat-generating components respectively form overlapping areas based on the projection of the first side surface, and the heat dissipation area corresponding to the coolant guide grooves at least includes the overlapping area, and the cross-sectional area of ​​the slot inlet of each coolant guide groove is positively increased with the area of ​​the corresponding heat dissipation area.

[0013] Preferably, the slope area connects the air inlet and the plane area, the plane area has a first side located at the exhaust chamber and a second side located at the control chamber, the heat-generating component is arranged on the second side of the plane area, 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 the heat of the heat-generating component through heat exchange with the plane area.

[0014] Preferably, the width of the coolant diverting chute located in the slope area increases positively with the area of ​​the overlapping area, and the width of the coolant diverting chute located in the plane area is the same.

[0015] Preferably, the guide fins each have a concentric arc trajectory surrounding the auxiliary bearing seat.

[0016] Preferably, when the heat-generating component has an edge region that does not overlap with the coolant guide chute, the area of ​​the heat dissipation region of the coolant guide chute closest to the region is equal to the sum of the areas of the corresponding overlapping region and the edge region.

[0017] Preferably, the edge region overlaps the secondary bearing seat based on a projection of the first side surface.

[0018] Preferably, it includes a first refrigerant guide chute, a second refrigerant guide chute, and a third refrigerant guide chute which surround the auxiliary bearing seat from the inside to the outside in sequence, and the first refrigerant guide chute in the slope area is partially occupied by the auxiliary bearing seat.

[0019] Preferably, the guide fin transfers the heat of the first side of the planar area along the surface of the refrigerant guide chute, and part of the refrigerant entering the exhaust chamber from the air inlet flows along the wall of the refrigerant guide chute and passes through the slope area and the planar area in sequence, taking away the heat from the surface of the refrigerant guide chute, so as to perform heat exchange with the overlapping area of ​​the heat-generating components to dissipate heat.

[0020] Preferably, the refrigerant flow rate passing through the slot inlet of each refrigerant diversion chute increases positively with the area of ​​the heat dissipation region corresponding to the refrigerant diversion chute.

[0021] Preferably, the closer the refrigerant guide chute is to the auxiliary bearing seat, the larger the chute inlet width is.

[0022] 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

[0023] 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.

[0024] Figure 1 It is a radial cross-sectional view of the compressor of the present utility model.

[0025] Figure 2 It is an axial cross-sectional view of the compressor of the present utility model.

[0026] Figure 3 for Figure 1 Enlarged schematic diagram of the middle tank inlet.

[0027] Figure 4 for Figure 1 An enlarged schematic diagram of the overlapping area between the refrigerant diversion chute and the heat-generating components.

[0028] Reference numerals

[0029] 1 Middle shell

[0030] 2 Back cover

[0031] 3. Heat generating components

[0032] 31 Marginal Area

[0033] 32 First overlapping area

[0034] 33 Second overlapping area

[0035] 4 Slope area

[0036] 41 First tank inlet

[0037] 42 Second tank inlet

[0038] 43 Third tank inlet

[0039] 44 First refrigerant diversion chute

[0040] 45 Second refrigerant diversion chute

[0041] 46 Third refrigerant diversion chute

[0042] 47 First refrigerant branch

[0043] 48 Second refrigerant branch

[0044] 49 Third refrigerant branch

[0045] 5 Plane area

[0046] 6 Air Inlet

[0047] 7 Motor assembly

[0048] 8 Guide fins

[0049] 13 Auxiliary bearing seat DETAILED DESCRIPTION

[0050] 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.

[0051] Figure 1 It is a radial cross-sectional view of the compressor of the present utility model. Figure 2 It is an axial cross-sectional view of the compressor of the present utility model. Figure 3 for Figure 1 Enlarged schematic diagram of the middle tank inlet. Figure 4 for Figure 1 An enlarged schematic diagram of the overlapping area between the refrigerant diversion chute and the heat-generating components. Figures 1 to 4 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. 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. The rear shell 2 is provided with a centrally located secondary bearing seat 13, a circular arc-shaped slope area 4 surrounding the secondary bearing seat 13, a plane area 5 shrinking inward in the direction away from the middle shell 1, and guide fins 8 on the first side of the rear shell 2 facing the middle shell 1. The guide fins 8 pass through the slope area 4 and the plane area 5 in turn. A number of refrigerant guide chute surrounding the secondary bearing seat 13 are formed between the guide fins 8. The second side of the rear shell 2 away from the middle shell 1 is provided with a control chamber for accommodating the heating element 3. The refrigerant guide chute and the heating element 3 form overlapping areas based on the projection of the first side. The heat dissipation area corresponding to the refrigerant guide chute at least includes the overlapping area. The cross-sectional area of ​​the slot inlet (the first slot inlet 41, the second slot inlet 42, and the third slot inlet 43) of each refrigerant guide chute is positively increased with the area of ​​the corresponding heat dissipation area. Since the compressor controller integrates a variety of heating elements, the overall temperature is high. Low heat dissipation performance is easy to 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. The utility model sets the effective width of each arc-shaped guide groove entrance according to the overlapping area or heat dissipation requirements of each arc-shaped guide groove and the heat-generating components. The larger the overlapping area or heat dissipation requirements, the larger the width of the arc-shaped guide groove entrance, thereby improving the cooling effect.

[0052] In a preferred embodiment, 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 heat generating component 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 heat generating component 3 through heat exchange with the plane area 5.

[0053] In a preferred embodiment, the width of the coolant diverting chute located in the slope area 4 increases positively with the area of ​​the overlapping area, and the width of the coolant diverting chute located in the plane area 5 is the same, but not limited thereto.

[0054] 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.

[0055] In a preferred embodiment, when the heat-generating component 3 has an edge area that does not overlap with the refrigerant diversion chute, the area of ​​the heat dissipation area of ​​the refrigerant diversion chute closest to the area is equal to the sum of the areas of the corresponding overlapping area and the edge area. In some small compressors, due to limited internal space, the heat-generating component 3 cannot completely overlap with the refrigerant diversion chute, but will overlap with other devices or components. Therefore, the utility model is fully compatible with the layout relationship of various heat-generating components 3, and the heat of the edge area of ​​the heat-generating component 3 that does not overlap with the refrigerant diversion chute is allocated to the refrigerant of the refrigerant diversion chute closest to the edge area to take away. Therefore, the refrigerant diversion chute must be configured with the corresponding slot width or cross-sectional area according to the sum of the areas of the corresponding overlapping area and the edge area, so as to adapt to the complex heat dissipation requirements in highly integrated small horizontal compressors and achieve better heat dissipation effects.

[0056] In a preferred embodiment, the edge area overlaps with the auxiliary bearing seat 13 based on the projection of the first side surface, but is not limited thereto.

[0057] In a preferred embodiment, the first refrigerant guide groove 44, the second refrigerant guide groove 45, and the third refrigerant guide groove 46 are sequentially arranged around the auxiliary bearing seat 13 from the inside to the outside, and the first refrigerant guide groove 44 in the slope area 4 is partially occupied by the auxiliary bearing seat 13, but it is not limited to this.

[0058] In a preferred embodiment, the guide fins 8 transfer the heat of the first side of the plane area 5 along the surface of the refrigerant guide chute, and part of the refrigerant entering the exhaust chamber from the air inlet 6 flows along the wall of the refrigerant guide chute and passes through the slope area 4 and the plane area 5 in sequence, taking away the heat from the surface of the refrigerant guide chute to perform heat exchange with the overlapping area of ​​the heat-generating components 3 to dissipate heat, but this is not limited to this.

[0059] In a preferred embodiment, the refrigerant flow rate (the first refrigerant branch 47, the second refrigerant branch 48, and the third refrigerant branch 49) passing through the trough inlet of each refrigerant diversion chute increases positively with the area of ​​the heat dissipation region corresponding to the refrigerant diversion chute.

[0060] In a preferred embodiment, the coolant guide chute closer to the auxiliary bearing seat 13 has a larger slot inlet width, but the present invention is not limited thereto.

[0061] Moreover, the refrigerant guide chute formed by the guide fins 8 in the utility model can not only provide a corresponding flow channel for the flow of the refrigerant, but also 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 middle shell 1, and can more fully extend the heat of the first side of the plane area 5 to transfer the refrigerant guide chute. The bottom surface (slope surface) of each refrigerant guide chute and the inner side surface of the groove body of the refrigerant guide chute (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, so that the refrigerant can take away a large amount of heat through heat exchange during the flow along the refrigerant guide chute, thereby achieving a stronger heat dissipation effect on the heat-generating components 3. Moreover, compared with the conventional plane guide groove, the refrigerant guide groove (inclined guide groove) formed by the combination of the guide fins 8 and the slope area 4 is more conducive to enhancing the state of the refrigerant flowing along the wall based on the slope area 4, avoiding the refrigerant from leaving the refrigerant guide groove too early, and further enhancing the effect of guiding the refrigerant to the plane area 5 for heat dissipation.

[0062] The specific implementation of the utility model is as follows:

[0063] The utility model is a vehicle-mounted horizontal compressor, comprising: a front shell (not shown in the figure), a middle shell 1, and a rear shell 2. 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 the first side surface of the rear shell 2 facing the middle shell 1 is provided with a centrally located auxiliary bearing seat 13, a circular arc-shaped slope area 4 surrounding the auxiliary bearing seat 13, a plane area 5 shrinking inward in the direction away from the middle shell 1, and guide fins 8. The guide fins 8 pass through the slope area 4 and the plane area 5 in sequence, and a number of refrigerant diversion chute surrounding the auxiliary bearing seat 13 are formed between the guide fins 8. The second side surface of the rear shell 2 away from the middle shell 1 is provided with a control chamber for accommodating the heating element 3, and the refrigerant diversion chute and the heating element 3 form overlapping areas based on the projection of the first side surface respectively, and the heat dissipation area corresponding to the refrigerant diversion chute at least includes the overlapping area, and the cross-sectional area of ​​the slot inlet (the first slot inlet 41, the second slot inlet 42, and the third slot inlet 43) of each refrigerant diversion chute is positively increased with the area of ​​the corresponding heat dissipation area. 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 heat-generating component 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 heat from the heat-generating component 3 through heat exchange with the plane area 5. The groove width of the refrigerant guide chute located in the slope area 4 increases positively with the area of ​​the overlapping area, and the groove width of the refrigerant guide chute located in the plane area 5 is the same. The guide fins 8 all have concentric arc trajectories around the auxiliary bearing seat 13. When the heat-generating component 3 has an edge area that does not overlap with the refrigerant guide chute, the area of ​​the heat-dissipating area of ​​the refrigerant guide chute closest to the area is equal to the sum of the areas of the corresponding overlapping area and the edge area. The edge area overlaps with the auxiliary bearing seat 13 based on the projection of the first side surface. The first refrigerant guide chute 44, the second refrigerant guide chute 45, and the third refrigerant guide chute 46 surround the auxiliary bearing seat 13 from the inside to the outside. The first refrigerant guide chute 44 in the slope area 4 is partially occupied by the auxiliary bearing seat 13. The guide fin 8 transfers the heat of the first side of the plane area 5 along the surface of the refrigerant guide chute. Part of the refrigerant entering the exhaust cavity from the air inlet 6 flows along the wall of the refrigerant guide chute and passes through the slope area 4 and the plane area 5 in turn, taking away the heat on the surface of the refrigerant guide chute to exchange heat with the overlapping area of ​​the heat-generating component 3 to dissipate heat. The refrigerant flow rate (the first refrigerant branch 47, the second refrigerant branch 48, and the third refrigerant branch 49) passing through the slot inlet of each refrigerant guide chute is positively increased with the area of ​​the heat dissipation area corresponding to the refrigerant guide chute. The closer the refrigerant guide chute is to the auxiliary bearing seat 13, the larger the slot inlet width is.Since the spatial layout of the vehicle-mounted horizontal compressor is very limited, the heat-generating component 3 cannot completely overlap with the refrigerant diversion chute, but may overlap with other devices or components. Therefore, the utility model is fully compatible with the layout relationships of various heat-generating components 3. The heat of the edge area of ​​the heat-generating component 3 that does not overlap with the refrigerant diversion chute is taken away by the refrigerant of the refrigerant diversion chute closest to the edge area. Therefore, the refrigerant diversion chute must be configured with the corresponding trough width or cross-sectional area according to the sum of the areas of the corresponding overlapping area and the edge area, so as to adapt to the complex heat dissipation requirements in the highly integrated small horizontal compressor and achieve better heat dissipation effect.

[0064] When the compressor refrigerant enters the control chamber from the air inlet 6, it is first divided by the guide fins 8 to enter the first slot inlet 41, the second slot inlet 42, and the third slot inlet 43 of each guide slot in turn, and then flows to the plane area 5 where the heat-generating component 3 is located under the guidance of the arc-shaped first refrigerant guide chute 44, the second refrigerant guide chute 45, and the third refrigerant guide chute 46, thereby achieving a cooling effect. Among them, the flow slot inlet is located at the refrigerant inlet position, and the position of the guide slot inlet fin and its effective width are designed according to the overlapping area of ​​each arc-shaped guide slot and the heat-generating component or the required heat dissipation area.

[0065] For example: the third refrigerant diversion chute 46 has almost no overlapping area with the heat-generating components, so it can be considered that the heat dissipation requirement of the third refrigerant diversion chute 46 is almost zero. The first refrigerant diversion chute 44 and the second refrigerant diversion chute 45 are almost identical to the first overlapping area 32 and the second overlapping area 33 of the heat-generating components. However, since the edge area 31 of the secondary bearing seat and the heat-generating component also needs to rely on the refrigerant of the first refrigerant diversion chute 44 to carry away heat, it can be considered that "the first overlapping area 32 and the edge area 31 are both the first heat dissipation requirement area of ​​the first refrigerant diversion chute 44". Therefore, the heat dissipation requirement of the first refrigerant diversion chute 44 is greater than that of the second refrigerant diversion chute 45.

[0066] It can be seen that: the heat dissipation requirement of the first refrigerant diversion chute 44>the heat dissipation requirement of the second refrigerant diversion chute 45>the heat dissipation requirement of the third refrigerant diversion chute 46≈0. Therefore, the utility model can design the fin position according to the heat dissipation requirement, control the inlet flow distribution, and design the effective width of the diversion chute inlet.

[0067] Let's first look at the third refrigerant guide chute 46: Since the third refrigerant guide chute 46 has almost no overlapping area with the heat-generating components, the starting position of the guide fin between the third refrigerant guide chute 46 and the second refrigerant guide chute 45 is set at the inlet edge, so that the flow rate is distributed to the first refrigerant guide chute 44 and the second refrigerant guide chute 45 as much as possible, and some of the refrigerant that leaks from the second refrigerant guide chute 45 enters the third refrigerant guide chute 46 (weak heat dissipation demand, low demand for refrigerant).

[0068] Let's look at the first refrigerant diversion chute 44 and the second refrigerant diversion chute 45: Since the first refrigerant diversion chute 44 needs to meet the heat dissipation requirements of the "first overlapping area 32 and the edge area 31" at the same time, and [the area of ​​the "first overlapping area 32" + the area of ​​the "edge area 31"] ≈ [the area of ​​the "second overlapping area 33" × 3], the first effective width of the entrance of the first refrigerant diversion chute 44 is set to be about 3 times the second effective width of the entrance of the second refrigerant diversion chute 45. The flow distribution meets the demand, so that each diversion chute has a different cooling effect, but the final temperature is similar, achieving reasonable heat dissipation and improving the overall cooling effect.

[0069] The utility model can set the position of the fin at the inlet of the guide groove and its effective width according to the overlapping area or heat dissipation required area of ​​each arc-shaped guide groove and the heat-generating component, control the inlet flow distribution, achieve reasonable heat dissipation, and improve the overall cooling effect. The overlapping area ratio of each guide groove and the heat-generating component (or the ratio of the heat dissipation required area) is designed to be consistent with the effective width ratio of the guide groove inlet (or the flow distribution ratio). That is, the first effective width / the second effective width≈(the area of ​​the first overlapping area 32+the area of ​​the edge area 31) / the area of ​​the second overlapping area 33.

[0070] In a variation, the ratio of the effective widths of the guide groove inlets may also be determined by the ratio of the required heat dissipation areas, for example: first effective width / second effective width≈first required heat dissipation area / second required heat dissipation area, but not limited thereto.

[0071] The large slope 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 utility model has a slope design on the bottom of the shell: the starting position of the upper end of the slope is close to the inlet, and the ending position of the lower end of the slope is close to the location of the heating 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 heating components.) The slope in the utility model makes the refrigerant adhere to the wall for rectification, and the guide groove guides the refrigerant to flow to the heating components.

[0072] 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.

[0073] 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), a plane area (5) shrinking inward in a direction away from the middle shell (1), and guide fins (8); the guide fins (8) pass through the slope area (4) and the plane area (5) in sequence; a plurality of coolant guide grooves surrounding the auxiliary bearing seat (13) are formed between the guide fins (8); a control chamber for accommodating a heating element (3) is provided on the second side of the rear shell (2) away from the middle shell (1); the coolant guide groove and the heating element (3) respectively form overlapping areas based on the projection of the first side; the heat dissipation area corresponding to the coolant guide groove at least includes the overlapping area; and the cross-sectional area of ​​the slot inlet of each coolant guide groove increases positively with the area of ​​the corresponding heat dissipation area.

2. The compressor according to claim 1, characterized in that The slope area (4) connects the air inlet (6) and the plane area (5), and the plane area (5) has a first side located at the exhaust chamber and a second side located at the control chamber. The heat generating component (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 heat from the heat generating component (3) through heat exchange with the plane area (5).

3. The compressor according to claim 1, characterized in that The groove width of the coolant diverting chute located in the slope area (4) increases positively with the area of ​​the overlapping area, and the groove width of the coolant diverting chute located in the plane area (5) is the same.

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

5. The compressor according to claim 1, characterized in that When the heat-generating component (3) has an edge region that does not overlap with the coolant diverting chute, the area of ​​the heat dissipation region of the coolant diverting chute closest to the region is equal to the sum of the areas of the corresponding overlapping region and the edge region.

6. The compressor according to claim 5, characterized in that The edge region overlaps the auxiliary bearing seat (13) based on a projection of the first side surface.

7. The compressor according to claim 6, characterized in that It comprises a first refrigerant guide chute (44), a second refrigerant guide chute (45), and a third refrigerant guide chute (46) which surround the auxiliary bearing seat (13) from the inside to the outside in sequence, and the first refrigerant guide chute (44) in the slope area (4) is partially occupied by the auxiliary bearing seat (13).

8. The compressor according to claim 7, characterized in that The guide fin (8) transfers the heat of the first side of the plane area (5) along the surface of the refrigerant guide chute. Part of the refrigerant entering the exhaust chamber from the air inlet (6) flows along the wall of the refrigerant guide chute and passes through the slope area (4) and the plane area (5) in sequence, taking away the heat from the surface of the refrigerant guide chute, so as to perform heat exchange with the overlapping area of ​​the heat-generating component (3) to dissipate heat.

9. The compressor according to claim 1, characterized in that The refrigerant flow rate passing through the slot inlet of each refrigerant diversion chute increases positively with the area of ​​the heat dissipation region corresponding to the refrigerant diversion chute.

10. The compressor according to claim 1, characterized in that The closer the refrigerant guide chute is to the auxiliary bearing seat (13), the greater the chute inlet width is.

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