CN219492526U - Compressor, thermal management system and electric automobile - Google Patents

Abstract

The utility model relates to a compressor, which comprises a scroll assembly, a top cover, a rack and a lower shell, wherein the top cover, the rack and the lower shell are sequentially connected, a first cavity is formed in the lower shell, an air inlet penetrating through the wall thickness of the lower shell is formed in the lower shell, and a first groove communicated with the top end of the lower shell is formed in the inner wall of one side of the lower shell, which is close to the rack; the frame comprises a disc piece and a support piece connected with the disc piece, one side, close to the support piece, of the disc piece is abutted to the upper end of the lower shell, a first through hole penetrating through the thickness of the disc piece is formed in the disc piece, the support piece is located in the first cavity and is provided with a first gap with the inner wall of the lower shell, and the first gap is used for transmitting refrigerant gas input by the air inlet to the first through hole; a second cavity is formed in the top cover, a vortex disc assembly is arranged in the top cover, a second gap is formed between the inner wall of the top cover and the vortex disc assembly, and the second gap transmits the refrigerant gas input by the first through hole to the vortex disc assembly; the vortex disc component compresses refrigerant gas to form high-temperature high-pressure gas, so that production cost and lightweight design are guaranteed, and the amount of gas entering the vortex disc component is increased.

Description

Compressor, thermal management system and electric automobile

Technical Field

The utility model relates to the technical field of automobiles, in particular to a compressor, a thermal management system and an electric automobile.

Background

In the new energy electric automobile, the thermal management system is used as an important component of the new energy electric automobile, the stability of the thermal management system influences the overall performance of the new energy electric automobile, the compressor is used as a core part of the thermal management system, and the important index of the refrigerating capacity of the compressor determines whether the thermal management system can operate efficiently and reliably or not on one hand, and plays an important role in the cruising mileage of the electric automobile on the other hand.

The refrigerating capacity of the compressor refers to the capacity of compressing low-temperature low-pressure refrigerant gas into high-temperature high-pressure gas, and as shown in fig. 1, the compressor comprises a scroll assembly, a top cover, a rack and a lower shell which are sequentially arranged, the lower shell is provided with an air inlet penetrating through the wall thickness of the lower shell, and a first cavity is formed in the lower shell; the frame comprises a disc piece and a support piece connected with the disc piece, the support piece is arranged in the first cavity and has a first gap with the inner wall of the lower shell, one side, close to the support piece, of the disc piece is abutted against the upper end of the lower shell, and a first through hole penetrating through the thickness of the disc piece is formed in the disc piece; the vortex disc assembly is installed in the top cover, a second gap is formed between the vortex disc assembly and the inner wall of the top cover, refrigerant gas enters from the air inlet, flows into the second gap along the first gap and the first through hole and then enters the vortex disc assembly, and the vortex disc assembly compresses the refrigerant gas to form high-temperature and high-pressure gas. It can be seen that the first air flow channel formed by the first gap, the first through hole and the second gap influences the air quantity of the refrigerant air entering the vortex plate assembly, thereby influencing the volumetric efficiency of the compressor and finally influencing the refrigerating capacity and performance of the compressor.

Currently, increasing the capacity of a compressor is mainly performed by increasing the volumetric efficiency of the compressor, which is generally performed by increasing the gas quantity of the refrigerant gas entering the scroll assembly. As shown in fig. 2, the current method for increasing the amount of refrigerant gas flowing into the scroll assembly through the first gas flow passage includes providing a larger-sized first through hole in the disc member, and in order to be able to better fit with the first through hole, the first gap needs to be simultaneously enlarged, and the size of the lower casing is mainly enlarged toward the first radial direction of the compressor, i.e., the a direction in the drawing, but this results in an increase in weight and volume of the compressor, and also increases the production cost.

Disclosure of Invention

Accordingly, it is necessary to provide a compressor, a thermal management system, and an electric vehicle, which solve the problem that it is difficult to increase the amount of gas entering the scroll assembly while ensuring the production cost and the lightweight design.

A compressor, includes scroll assembly, top cap, frame and the lower casing that connects gradually, wherein:

the lower shell is internally provided with a first cavity, an air inlet penetrating through the wall thickness of the lower shell is formed, and a first groove is formed in the inner wall of one side of the lower shell, which is close to the rack and is communicated with the top end of the lower shell;

the frame comprises a disc piece and a support piece connected with the disc piece, one side, close to the support piece, of the disc piece is abutted to the upper end of the lower shell, a first through hole penetrating through the thickness of the disc piece is formed in the disc piece, the support piece is located in the first cavity and is provided with a first gap with the inner wall of the lower shell, and the first gap is used for transmitting refrigerant gas input by the air inlet to the first through hole;

a second cavity is formed in the top cover, the vortex disc assembly positioned in the second cavity is arranged in the top cover, a second gap is formed between the inner wall of the top cover and the vortex disc assembly, and the second gap is used for transmitting the refrigerant gas input by the first through hole to the vortex disc assembly;

the scroll assembly is configured to compress the refrigerant gas to form a high temperature and high pressure gas.

Above-mentioned compressor, through setting up first clearance, first through-hole and second clearance formation be used for carrying the first air current passageway of refrigerant gas to the vortex dish subassembly, the vortex dish subassembly compresses the refrigerant gas of input into high temperature high pressure gas and realizes the refrigeration of compressor, and support piece and lower shells inner wall's space is first clearance, for the mode that the whole size of casing increased first clearance under the expansion, the mode that is close to the frame through the casing down is compared to prior art, this application is through seting up first recess on one side inner wall that the casing is close to the frame down, the top of casing under first recess intercommunication, the thickness that the casing is close to frame side down has been reduced, the first clearance of support piece and lower casing top part has been increased promptly, the gas flow of refrigerant gas that has flowed into to first through-hole through first clearance has been increased, thereby the gas volume of refrigerant gas that has got into the vortex dish subassembly, the size of casing under need not wholly be enlarged, lightweight design has been guaranteed, manufacturing cost has been reduced.

In one embodiment, a second groove is formed in the inner wall of one side, close to the rack, of the top cover, and the second groove is communicated with the bottom end of the top cover.

In one embodiment, orthographic projections of the first through hole on the lower shell and the top cover are respectively located in the first gap and the second gap.

In one embodiment, a side, close to the outer end of the disc, of the hole wall of the first through hole is a first hole wall, and the first hole wall and the first slot wall of the first slot and the second slot wall of the second slot are located on the same straight line.

In one embodiment, the first groove wall is a first inclined plane, one end of the first groove wall, which is close to the rack, is a first end, one end of the first groove wall, which is far away from the rack, is a second end, and a distance from the first end to the outer side of the lower shell is smaller than a distance from the second end to the outer side of the lower shell.

In one embodiment, the second groove wall is a second inclined plane, one end of the second groove wall, which is close to the rack, is a third end, one end of the second groove wall, which is far away from the rack, is a fourth end, and the distance from the third end to the outer side of the top cover is smaller than the distance from the fourth end to the outer side of the top cover.

In one embodiment, the arrangement direction of the top cover, the rack and the lower shell is a first direction, and the two sides of the first hole wall along the first direction are respectively overlapped with the first end and the third end in a one-to-one correspondence manner.

In one embodiment, a second hole wall opposite to the first hole wall in the first through hole is set to be a third inclined plane, one end of the third inclined plane, which is close to the top cover, is a fifth end, one end of the third inclined plane, which is far away from the top cover, is a sixth end, and the distance from the fifth end to the center line of the rack is greater than the distance from the sixth end to the center line of the rack.

The second embodiment of the utility model also discloses a thermal management system comprising the compressor according to any of the above embodiments.

According to the heat management system, the compressor is arranged in the heat management system, the first gap, the first through hole and the second gap are formed in the compressor to form the first airflow channel for conveying the refrigerant gas to the vortex disc assembly, the vortex disc assembly compresses the input refrigerant gas into high-temperature high-pressure gas to realize refrigeration of the compressor, and the gap between the support piece and the inner wall of the lower shell is the first gap.

The third embodiment of the utility model also discloses an electric automobile, which comprises the thermal management system of the second embodiment.

According to the electric automobile, the heat management system with the compressor is arranged in the electric automobile, the first gap, the first through hole and the second gap are formed in the compressor to form the first airflow channel for conveying the refrigerant gas to the vortex disc assembly, the vortex disc assembly compresses the input refrigerant gas into high-temperature high-pressure gas to realize refrigeration of the compressor, and the gap between the support piece and the inner wall of the lower shell is the first gap.

Drawings

FIG. 1 is a schematic diagram of a prior art compressor;

FIG. 2 is a schematic view of another prior art compressor;

FIG. 3 is a schematic view of a compressor according to the present utility model;

FIG. 4 is a cross-sectional view taken along the A-A plane in FIG. 3;

FIG. 5 is a schematic view of the lower housing of FIG. 3;

FIG. 6 is a schematic view of the top cover of FIG. 3;

FIG. 7 is a schematic view of the frame structure of FIG. 3;

FIG. 8 is a schematic view of a second compressor provided by the present utility model;

FIG. 9 is a schematic view of the lower housing of FIG. 8;

FIG. 10 is a schematic view of the top cover of FIG. 8;

FIG. 11 is a schematic view of a third compressor provided by the present utility model;

fig. 12 is a schematic view of the frame structure in fig. 11.

Wherein:

10. a compressor; a. a first radial direction;

100. a scroll assembly; 110. a fixed scroll; 111. an air suction groove; 112. an exhaust hole; 120. a movable scroll; 130. a compression chamber;

200. a top cover; 210. a second cavity; 220. a second mounting hole; 230. a second groove; 231. a second groove wall;

300. a frame; 310. a disc member; 311. a first through hole; 3111. a first aperture wall; 3112. a second aperture wall; 312. a second through hole; 320. a support;

400. a lower housing; 410. an air inlet; 420. a first cavity; 430. a first groove; 431. a first groove wall; 440. a first mounting hole;

500. a first gap; 600. a second gap; 700. a first fastener.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The following describes the technical scheme provided by the embodiment of the utility model with reference to the accompanying drawings.

As shown in fig. 3, 4, 5, 6 and 7, an embodiment of the present utility model provides a compressor 10 applied to an electric vehicle, wherein the compressor 10 includes a scroll assembly 100, a top cover 200, a frame 300 and a lower housing 400 connected in sequence, wherein:

the lower casing 400 is internally provided with a first cavity 420, the lower casing 400 is provided with an air inlet 410 penetrating through the wall thickness of the lower casing 400, the inner wall of one side of the lower casing 400, which is close to the frame 300, is provided with a first groove 430, the first groove 430 is communicated with the top end of the lower casing 400, when the lower casing 400 is specifically arranged, the air inlet 410 is used for introducing refrigerant gas, the first groove 430 is generally an annular groove, one end surface of the lower casing 400, which is close to the frame 300, is provided with a first mounting hole 440, and the first mounting hole 440 and the first groove 430 are arranged at intervals;

the frame 300 comprises a disc member 310 and a support member 320 connected with the disc member 310, one side of the disc member 310, which is close to the support member 320, is abutted against the upper end of the lower shell 400, a first through hole 311 penetrating through the thickness of the disc member is formed in the disc member 310, the support member 320 is positioned in a first cavity 420 and is provided with a first gap 500 with the inner wall of the lower shell 400, the first gap 500 is used for transmitting refrigerant gas input by an air inlet 410 to the first through hole 311, when the frame is specifically arranged, a first groove 430 is positioned in the first gap 500, the orthographic projection of the first through hole 311 on the lower shell 400 is at least partially positioned in the first gap 500, a second through hole 312 penetrating through the thickness of the disc member 310 is formed in the disc member, the second through hole 312 and the first through hole 311 are arranged at intervals, and the second through hole 312 and the first mounting hole 440 are arranged opposite to each other;

the second cavity 210 is formed in the top cover 200, the scroll assembly 100 positioned in the second cavity 210 is arranged on the top cover 200, a second gap 600 is formed between the inner wall of the top cover 200 and the scroll assembly 100, the second gap 600 is used for transmitting the refrigerant gas input by the first through hole 311 to the scroll assembly 100, when the device is specifically arranged, the orthographic projection of the first through hole 311 on the top cover 200 is at least partially positioned in the second gap 600, a second mounting hole 220 is formed on one end surface of the top cover 200, which is close to the frame 300, the second mounting hole 220 is opposite to the second through hole 312, and the first fastener 700 sequentially passes through the second mounting hole 220, the second through hole 312 and the first mounting hole 440 to fix the top cover 200, the frame 300 and the lower shell 400 into a whole;

the scroll assembly 100 is used to compress a refrigerant gas to form a high temperature and high pressure gas. When the device is specifically arranged, the vortex disc assembly 100 comprises a static vortex disc 110 and an movable vortex disc 120, the static vortex disc 110 is arranged in the top cover 200, the static vortex disc 110 is provided with an air suction groove 111, the center of the static vortex disc 110 is also provided with an air exhaust hole 112, one side of the static vortex disc 110, which is away from the top cover 200, is provided with the movable vortex disc 120 matched with the static vortex disc 110, a compression cavity 130 is formed between the static vortex disc 110 and the movable vortex disc 120, and during specific operation, the air suction groove 111 sucks the refrigerant gas from the second gap 600 into the compression cavity 130, and then the volume of the compression cavity 130 is reduced along with eccentric rotation of the static vortex disc 110 and the movable vortex disc 120, and the refrigerant gas is compressed into high-temperature high-pressure gas to be exhausted from the air exhaust hole 112.

In the above-mentioned compressor 10, the first air flow channel for delivering the refrigerant gas to the scroll assembly 100 is formed by providing the first gap 500, the first through hole 311 and the second gap 600, the scroll assembly 100 compresses the inputted refrigerant gas into the high-temperature and high-pressure gas to realize the refrigeration of the compressor 10, and the gap between the support member 320 and the inner wall of the lower housing 400 is the first gap 500, compared with the prior art in which the first gap is increased by enlarging the overall size of the lower housing, the first groove 430 is formed on the inner wall of the side of the lower housing 400 close to the frame 300, the first groove 430 is communicated with the top end of the lower housing 400, the thickness of the lower housing 400 close to the frame 300 is reduced, that is, the first gap 500 between the support member 320 and the top end portion of the lower housing 400 is increased, the gas flow of the refrigerant gas flowing into the first through hole 311 through the first gap 500 is increased, thereby increasing the gas amount of the refrigerant gas entering the scroll assembly 100, the lower housing 400 does not need to be enlarged, the lightweight design is ensured, and the production cost is reduced.

In the prior art, the way to increase the amount of refrigerant gas entering the scroll assembly also includes enlarging the second gap by enlarging the size of the top cover in the first radial direction of the compressor, i.e., the direction a in the drawing, but this also results in an increase in weight and volume of the compressor, and an increase in production cost.

In order to reduce the production cost and ensure the light weight design, in a preferred embodiment, a second groove 230 is formed on the inner wall of one side of the top cover 200, which is close to the frame 300, and the second groove 230 is communicated with the bottom end of the top cover 200. When the structure is specifically provided, the second groove 230 is generally an annular groove, the second groove 230 and the second mounting hole 220 are arranged at intervals, the second groove 230 is located in the second gap 600, through the arrangement, the thickness of the top cover 200, which is close to one side of the frame 300, is conveniently reduced, namely, the second gap 600 between the scroll assembly 100 and the bottom end portion of the top cover 200 is increased, the second groove 230 is matched with the first groove 430 and the first through hole 311 with corresponding enlarged size, and the size of a first airflow channel formed by the first gap 500, the first through hole 311 and the second gap 600 and used for conveying the refrigerant gas to the scroll assembly 100 is increased, so that the gas amount of the refrigerant gas entering the scroll assembly 100 is increased, the size of the lower shell 400 does not need to be integrally enlarged, the lightweight design is ensured, and the production cost is reduced.

To facilitate the flow of the refrigerant gas and increase the amount of the refrigerant gas entering the scroll assembly 100, in a preferred embodiment, the orthographic projections of the first through hole 311 in the lower housing 400 and the top cover 200 are located 5 in the first gap 500 and the second gap 600, respectively. With the above arrangement, the first through hole 311 is located at the first position

The gaps 500 and 600 ensure the smoothness of the first gas flow channel, and facilitate the flow of gas.

It should be noted that, the first gap 500 is also an air flow channel of the lower housing 400, the first through hole 311 is also an air flow channel of the rack 300, and the second gap 600 is also an air flow channel of the top cover 200, which is the first in the prior art

The size of the gap 500 and the size of the second gap 600 are larger than those of the first through hole 311, and the abrupt change of the first gas flow channel exists in the process 0 of the refrigerant gas flow, so that the throttling effect is easily generated, thereby causing the suction of the refrigerant gas

Suction pressure loss.

In order to prevent the occurrence of the throttling phenomenon, specifically, one side of the hole wall of the first through hole 311, which is close to the outer end of the disk, is a first hole wall 3111, and the first hole wall 3111 and the first and second groove walls 431 and 430 of the first groove 430

The second groove wall 231 of the groove 230 is located on the same straight line. When the first groove wall 431 and the second groove wall 231 are both linear in specific arrangement, through the arrangement, when the refrigerant gas flows along the first gap 500, the first through hole 311 and the second gap 600, the first groove wall 431, the first hole wall 3111 and the second groove 230 are positioned on the same straight line, no abrupt change of the first air flow channel exists, the throttling effect is weakened, the suction pressure loss is effectively reduced, and the working efficiency of the compressor 10 is improved.

As shown in fig. 8, 9 and 10, more specifically, in order to guide the flow of the refrigerant gas, the first groove wall 431 is a first inclined surface, and the first groove wall 431 is a first inclined surface at one end close to the frame 300

At one end, the first groove wall 431 is a second end at an end far from the frame 300, and a distance from the first end to the outer side of the lower housing 400 is smaller than a distance from the second end to the outer side of the lower housing 400. It will be appreciated that the first groove 430 may also be considered as a beveled chamfer of the top edge of the inner wall of the lower housing 400, and through the above arrangement, the refrigerant gas is facilitated to flow into the first through hole 311 along the first beveled surface, thereby reducing suction pressure loss, increasing suction efficiency, and improving efficiency of the compressor 10.

In order to facilitate the refrigerant gas to flow into the scroll assembly 100 more quickly, further, the second groove wall 231 is a second inclined surface, one end of the second groove wall 231 close to the frame 300 is a third end, one end of the second groove wall 231 far away from the frame 300 is a fourth end, and the distance from the third end to the outer side of the top cover 200 is smaller than the distance from the fourth end to the outer side of the top cover 200.

In order to accelerate the flow of the refrigerant gas through the first gas flow channel, further, the arrangement direction of the top cover 200, the rack 300 and the lower housing 400 is the first direction, and two sides of the first hole wall 3111 along the first direction are respectively overlapped with the first end and the third end in a one-to-one correspondence manner. Through the above arrangement, the refrigerant gas flows into the first hole wall 3111 along the first inclined plane, and flows into the scroll assembly 100 along the second inclined plane from the first hole wall 3111, so that on one hand, no abrupt change of the first air flow channel exists, the throttling effect is weakened, the suction pressure loss is effectively reduced, the working efficiency of the compressor 10 is improved, and on the other hand, the refrigerant gas is more quickly guided to flow into the scroll.

As shown in fig. 11 and 12, in order to increase the inflow rate of the refrigerant gas in the first through hole 311, more specifically, the second hole wall 3112 of the first through hole 311, which is opposite to the first hole wall 3111, is provided as a third inclined surface, one end of the third inclined surface, which is close to the top cover 200, is a fifth end, one end of the third inclined surface, which is far from the top cover 200, is a sixth end, and a distance from the fifth end to the center line of the frame 300 is greater than a distance from the sixth end to the center line of the frame 300. As will be understood, the third inclined plane is parallel to the first inclined plane, and the end surface of the disc member 310 facing away from the supporting member 320 is the supporting surface of the movable vortex plate 120, so that by the above arrangement, the air inlet flow rate of the refrigerant gas of the first through hole 311 is increased while the supporting surface is ensured, and the slow change of the air flow rate along the inclined plane when the refrigerant gas passes through the first through hole 311 is realized, so that the pressure loss is reduced.

A second embodiment of the present utility model provides a thermal management system comprising a compressor 10 as described in any of the embodiments above.

In the above thermal management system, by providing the compressor 10 in the thermal management system, the first gap 500, the first through hole 311 and the second gap 600 are provided in the compressor 10 to form the first airflow channel for delivering the refrigerant gas to the scroll assembly 100, the scroll assembly 100 compresses the input refrigerant gas into the high-temperature and high-pressure gas to realize the refrigeration of the compressor 10, and the gap between the support member 320 and the inner wall of the lower housing 400 is the first gap 500, compared with the manner of increasing the first gap by enlarging the overall size of the lower housing in the prior art, the present application reduces the thickness of the lower housing 400 near the side of the frame 300 by providing the first groove 430 on the inner wall of the side of the lower housing 400 near the frame 300, i.e. increases the first gap 500 between the support member 320 and the top end portion of the lower housing 400, thereby increasing the gas amount of the refrigerant gas flowing into the first through hole 311, eliminating the need of enlarging the overall size of the lower housing 400, ensuring the lightweight design, and reducing the production cost.

The third embodiment of the utility model provides an electric automobile, which comprises the thermal management system of the second embodiment.

In the above electric automobile, by providing the heat management system with the compressor 10 in the electric automobile, the first gap 500, the first through hole 311 and the second gap 600 are provided in the compressor 10 to form the first air flow channel for delivering the refrigerant gas to the scroll assembly 100, the scroll assembly 100 compresses the inputted refrigerant gas into the high-temperature and high-pressure gas to realize the refrigeration of the compressor 10, and the gap between the support 320 and the inner wall of the lower housing 400 is the first gap 500, compared with the prior art in which the size of the whole lower housing 400 is enlarged to increase the first gap, the first groove 430 is provided on the inner wall of the side of the lower housing 400 close to the frame 300, and the first groove 430 is communicated with the top end of the lower housing 400, so that the thickness of the side of the lower housing 400 close to the frame 300 is reduced, that is, the first gap 500 of the top end portion of the support 320 and the lower housing 400 is increased, and the air flow of the refrigerant gas flowing into the first through the first gap 311 is increased, thereby increasing the air quantity of the refrigerant gas entering the scroll assembly 100, and the size of the whole lower housing 400 is not required to be enlarged, and the size of the whole lower housing 400 is reduced, and the production cost is reduced.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The utility model provides a compressor, its characterized in that includes scroll assembly, top cap, frame and the lower casing that connects gradually, wherein:

the lower shell is internally provided with a first cavity, an air inlet penetrating through the wall thickness of the lower shell is formed, and a first groove is formed in the inner wall of one side of the lower shell, which is close to the rack and is communicated with the top end of the lower shell;

the frame comprises a disc piece and a support piece connected with the disc piece, one side, close to the support piece, of the disc piece is abutted to the upper end of the lower shell, a first through hole penetrating through the thickness of the disc piece is formed in the disc piece, the support piece is located in the first cavity and is provided with a first gap with the inner wall of the lower shell, and the first gap is used for transmitting refrigerant gas input by the air inlet to the first through hole;

a second cavity is formed in the top cover, the vortex disc assembly positioned in the second cavity is arranged in the top cover, a second gap is formed between the inner wall of the top cover and the vortex disc assembly, and the second gap is used for transmitting the refrigerant gas input by the first through hole to the vortex disc assembly;

the scroll assembly is configured to compress the refrigerant gas to form a high temperature and high pressure gas.

2. The compressor of claim 1, wherein a second groove is formed in an inner wall of one side of the top cover, which is close to the frame, and the second groove is communicated with the bottom end of the top cover.

3. The compressor of claim 1, wherein orthographic projections of the first through hole in the lower housing and the top cover are located in the first gap and the second gap, respectively.

4. The compressor of claim 2, wherein a side of the wall of the first through hole, which is adjacent to the outer end of the disc, is a first wall of the hole, and the first wall of the hole is on the same line as the first wall of the first groove and the second wall of the second groove.

5. The compressor of claim 4, wherein the first groove wall is a first inclined surface, an end thereof adjacent to the frame is a first end, an end thereof remote from the frame is a second end, and a distance from the first end to an outside of the lower housing is smaller than a distance from the second end to the outside of the lower housing.

6. The compressor of claim 5, wherein the second groove wall is a second inclined surface, an end of the second groove wall, which is close to the frame, is a third end, an end of the second groove wall, which is far away from the frame, is a fourth end, and a distance from the third end to the outer side of the top cover is smaller than a distance from the fourth end to the outer side of the top cover.

7. The compressor of claim 6, wherein the arrangement direction of the top cover, the frame and the lower housing is a first direction, and the first hole walls are respectively overlapped with the first end and the third end in one-to-one correspondence along two sides of the first direction.

8. The compressor of claim 4, wherein a second hole wall of the first through hole, which is opposite to the first hole wall, is provided with a third inclined surface, one end of the third inclined surface, which is close to the top cover, is provided with a fifth end, one end of the third inclined surface, which is far away from the top cover, is provided with a sixth end, and a distance from the fifth end to a center line of the frame is greater than a distance from the sixth end to the center line of the frame.

9. A thermal management system comprising a compressor as claimed in any one of claims 1 to 8.

10. An electric vehicle comprising the thermal management system of claim 9.