CN219509820U - Electric compressor and vehicle - Google Patents

Abstract

The utility model discloses an electric compressor and a vehicle, and relates to the technical field of compressors. The liquid storage shell is connected with the main shell, a liquid storage cavity is formed in the liquid storage shell, and the liquid storage shell is provided with an air inlet and an air outlet which are communicated with the liquid storage cavity; the two ends of the partition board are respectively connected to the inner wall of the liquid storage cavity and divide the liquid storage cavity into a first cavity and a second cavity, the first cavity is positioned at one side of the air inlet, the second cavity is positioned at one side of the air outlet, and at least part of the partition board is vertically or obliquely arranged and forms a communication port for communicating the first cavity with the second cavity; the filter screen is connected with the partition board and covers the communication port. According to the utility model, the vertical or inclined filter screen is arranged, so that impurities on the filter screen can fall to the bottom of the first cavity automatically, and the adhesion of the impurities on the filter screen is effectively reduced, thereby improving the air suction efficiency of the electric compressor and improving the operation reliability of the electric compressor.

Description

Electric compressor and vehicle

Technical Field

The utility model relates to the technical field of compressors, in particular to an electric compressor and a vehicle.

Background

In the running process of the electric compressor, after the liquid reservoir sucks the refrigerant, the refrigerant is filtered by the filter screen and then enters the air suction port of the pump body assembly for compression. After long-time operation, impurities in the refrigerant can gather on the surface of the filter screen. Particularly in the field of automobile air conditioning, the interior of an air conditioning system is mostly provided with hoses and is mostly connected by threads; therefore, more impurities exist in the air conditioning system, and when the impurities are paved on the whole filter screen, the air suction efficiency of the electric compressor can be greatly reduced, and a great risk is caused to the operation reliability of the electric compressor.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the electric compressor which can effectively reduce the adhesion of impurities on the filter screen and improve the running stability of the compressor.

The utility model also provides a vehicle with the electric compressor.

An electric compressor according to an embodiment of the first aspect of the present utility model includes: a main housing; the liquid storage shell is connected with the main shell, a liquid storage cavity is formed in the liquid storage shell, and the liquid storage shell is provided with an air inlet and an air outlet which are communicated with the liquid storage cavity; the baffle is arranged in the liquid storage cavity, two ends of the baffle are respectively connected to the inner wall of the liquid storage cavity, the liquid storage cavity is divided into a first cavity and a second cavity, the first cavity is positioned at one side of the air inlet, the second cavity is positioned at one side of the air outlet, and at least part of the baffle is vertically or obliquely arranged and is provided with a communication port for communicating the first cavity with the second cavity; the filter screen is arranged in the liquid storage cavity, connected with the partition plate and covered at the communication port.

The electric compressor provided by the embodiment of the utility model has at least the following beneficial effects:

through setting up the baffle with the reservoir and separate into the first cavity that is located air inlet one side and the second cavity that is located air outlet one side, at least part of baffle is perpendicular or the slope sets up and is formed with the intercommunication mouth, and intercommunication mouth department covers has the filter screen, and the filter screen is perpendicular or the slope is provided with the impurity on being favorable to the filter screen and drops to the bottom of first cavity voluntarily, effectively reduces the impurity and adheres to on the filter screen to electric compressor's suction efficiency has been improved, electric compressor's operational reliability is promoted.

According to some embodiments of the utility model, the screen is located above the intersection of the axis of the intake port and the baffle.

According to some embodiments of the utility model, the electric compressor further comprises a foot for supporting the main casing, and an extension line of the filter screen intersects with a plane of a lower end face of the foot, and an intersection angle a is defined at a side facing the air inlet, wherein the intersection angle a is greater than 0 ° and less than 90 °.

According to some embodiments of the utility model, a lower end surface of the screen is located in the first cavity, and an upper end surface of the screen is located in the second cavity.

According to some embodiments of the utility model, the separator is a straight plate, a bent plate, or a connected multi-section plate.

According to some embodiments of the utility model, a portion of the wall surface of the liquid storage case is spaced apart from a corresponding wall surface of the main case along the axial direction of the main case.

According to some embodiments of the utility model, a thermal insulation material is filled between a part of the wall surface of the liquid storage shell and the corresponding wall surface of the main shell.

According to some embodiments of the utility model, the electric compressor further comprises a connecting pipe and a pump body assembly, wherein the pump body assembly is installed in the main shell, an air suction channel is formed in the connecting pipe, and the air suction channel is communicated with the air outlet of the liquid storage shell and the air suction port of the pump body assembly; along the radial direction of the main shell, part of the wall surface of the connecting pipe is arranged at intervals with the corresponding wall surface of the main shell.

According to some embodiments of the utility model, a thermal insulation material is filled between a portion of the wall surface of the connection pipe and a corresponding wall surface of the main housing.

A vehicle according to an embodiment of the second aspect of the utility model includes the electric compressor described in the above embodiment.

The vehicle provided by the embodiment of the utility model has at least the following beneficial effects:

adopt the electric compressor of first aspect embodiment, electric compressor separates the reservoir into the first cavity that is located air inlet one side and the second cavity that is located air outlet one side through setting up the baffle, and the at least part of baffle is perpendicular or the slope sets up and is formed with the intercommunication mouth, and intercommunication mouth department covers there is the filter screen, and the filter screen is perpendicular or the slope sets up the impurity on being favorable to the filter screen to drop to the bottom of first cavity voluntarily, effectively reduces the impurity and adheres to on the filter screen to electric compressor's breathing in efficiency has been improved, electric compressor's operational reliability is promoted.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic view showing a structure of an electric compressor according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of the motor-driven compressor shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view of the reservoir of FIG. 1;

FIG. 4 is a schematic cross-sectional view of a reservoir housing of an electric compressor according to another embodiment of the present utility model;

fig. 5 is a schematic structural view of a vehicle according to an embodiment of the present utility model.

Reference numerals:

an electric compressor 1000;

a main housing 100; a motor housing 110; a motor cavity 111; a pump body housing 120; a pump chamber 121; a support 130;

a motor assembly 200; a stator 210; a rotor 220;

a pump body assembly 300; a crankshaft 310; the suction port 320;

a liquid storage case 400; a reservoir 410; a first cavity 411; a second cavity 412; an air inlet 420; an air outlet 430; a spacer 440; a screen 450;

a connection pipe 500; a suction channel 510;

a foot 600.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1, an electric compressor 1000 according to an embodiment of the present utility model is applied to an air conditioning system of a vehicle. The electric compressor 1000 is a core component of an air conditioning system, the electric compressor 1000 compresses a refrigerant and discharges the refrigerant, the refrigerant sequentially passes through a condenser, a throttling device and an evaporator, and finally the refrigerant reenters the electric compressor 1000 to realize refrigerant circulation. The refrigerant realizes the air conditioning of the environment in the vehicle through evaporation heat absorption and condensation heat release.

Referring to fig. 1 and 2, an electric compressor 1000 according to an embodiment of the present utility model includes a main housing 100, a motor assembly 200, and a pump body assembly 300. The main housing 100 includes a motor housing 110, a pump housing 120, and a support bracket 130. The motor casing 110 is fixedly connected with the pump casing 120 through the support 130, the support 130 is clamped between the motor casing 110 and the pump casing 120, for example, the support 130, the motor casing 110 and the pump casing 120 can be fixedly connected through bolts. The pump body housing 120 has a pump body cavity 121 formed therein, and the pump body assembly 300 is fixedly mounted to the supporting frame 130 and is positioned in the pump body cavity 121. A motor chamber 111 is formed in the motor housing 110, and the motor assembly 200 is installed in the motor chamber 111. The motor assembly 200 includes a stator 210 and a rotor 220, the stator 210 being fixedly coupled to an inner wall of the motor cavity 111. The pump body assembly 300 includes a crankshaft 310, the crankshaft 310 extending to the motor cavity 111 and being fixedly connected with rotation; under the driving action of the motor assembly 200, the crankshaft 310 rotates and performs the suction, compression and discharge processes of the pump body assembly 300.

Referring to fig. 1 and 2, the motor-driven compressor 1000 according to the embodiment of the present utility model further includes a liquid storage case 400 and a foot 600, the liquid storage case 400 being fixedly coupled to the main housing 100. The feet 600 may be provided on the reservoir housing 400 and the main housing 100, as well as on other locations of the motor-driven compressor 1000. The foot 600 functions to support the motor-driven compressor 1000, and to achieve a fixed connection of the motor-driven compressor 1000 and the vehicle. The lower end surface of the foot 600 is a mounting plane, and is generally mounted by a horizontal plane.

Referring to fig. 3, it can be appreciated that a liquid storage chamber 410 is formed in the liquid storage case 400. The reservoir housing 400 is provided with an air inlet 420 and an air outlet 430 communicating with the reservoir chamber 410. The liquid storage cavity 410 is provided with a separator 440, and two ends of the separator 440 are respectively connected to the inner wall of the liquid storage cavity 410. The partition 440 divides the liquid storage chamber 410 into a first chamber 411 and a second chamber 412. The first cavity 411 is located at one side of the air inlet 420, and the second cavity 412 is located at one side of the air outlet 430. At least a portion of the plate section of the spacer 440 is vertically disposed or obliquely disposed with respect to the lower end surface of the foot 600, and the portion of the plate section of the spacer 440 is formed with a communication port that communicates with the first and second cavities 411 and 412. It is understood that the communication port may be a hole formed in the partition 440, or may be a notch formed by spacing two adjacent plate segments of the partition 440. Of course, the spacer 440 may be a straight plate and may be disposed vertically as a whole or inclined as a whole.

It will be appreciated that a filter screen 450 is also provided within the reservoir 410. The filter 450 is fixedly connected to the partition 440, and the filter 450 covers the communication port. Therefore, the filter screen 450 can be vertically or obliquely installed, which is beneficial to the impurity on the filter screen 450 to automatically drop to the bottom of the first cavity 411, and effectively reduces the adhesion of the impurity on the filter screen 450, thereby improving the air suction efficiency of the electric compressor 1000 and improving the operation reliability of the electric compressor 1000.

It is appreciated that the filter 450 may be made of a metal material, such as steel, which is structurally stable, durable, and facilitates the downward sliding of impurities.

Referring to fig. 3 and 4, it is understood that the screen 450 is located above the intersection of the axis of the air inlet 420 and the baffle 440. Therefore, the refrigerant can be prevented from being directly sprayed onto the surface of the filter 450 when entering the first cavity 411 from the air inlet 420, and the liquid refrigerant can be prevented from directly entering the air outlet 430 from the filter 450, so that the electric compressor 1000 is prevented from being impacted. But also avoids the long-term adhesion of foreign substances to the filter screen 450 under pressure and reduces the occurrence of deformation of the filter screen 450. The location of the screen 450 above the intersection also enables the screen 450 to be positioned higher than the location of the trash deposit, avoiding the deposit from clogging the screen 450.

Referring to fig. 3, it can be understood that the extension line of the filter screen 450 intersects the plane of the lower end surface of the foot 600, and defines an intersection angle a on the side facing the air inlet 420, where the intersection angle a satisfies: a is more than 0 DEG and less than 90 deg. When the above parameter range is satisfied, the impurity is attached to the lower end surface of the filter screen 450, and the impurity falls off the lower portion of the first cavity 411 due to the inclination of the filter screen 450, so as to prevent the impurity from being attached to the filter screen 450, thereby causing the blockage of the filter screen 450. And the greater the relative slope of the screen 450, the more advantageous the efficiency of the shedding of contaminants from the screen 450.

Referring to fig. 3, it can be appreciated that the lower end surface of the filter screen 450 is positioned in the first cavity 411, and the upper end surface of the filter screen 450 is positioned in the second cavity 412. I.e. the first cavity 411 is located below the sieve 450 and the second cavity 412 is located above the sieve 450. Therefore, the refrigerant flow entering the first cavity 411 is diffused from bottom to top to the second cavity 412, so that the probability that impurities adhere to the filter screen 450 can be effectively reduced, the probability that the impurities block the filter screen 450 is reduced, the air suction efficiency of the electric compressor 1000 is improved, and the operation reliability of the electric compressor 1000 is improved.

Referring to fig. 3 and 4, it will be appreciated that the spacer 440 is a straight plate for ease of processing and demolding.

As another embodiment, the spacer 440 may be a bent plate, or a multi-stage plate formed by connecting a plurality of bent plates or straight plates. When a curved plate or a multi-section plate is used as the spacer 440, the filter 450 may be disposed on a portion of the curved plate or the multi-section plate.

Referring to fig. 2, the motor-driven compressor 1000 of the embodiment of the present utility model further includes a connection pipe 500. The connection pipe 500 is fixedly connected to the main housing 100, and an air suction passage 510 is formed in the connection pipe 500. One end of the suction channel 510 communicates with the liquid storage chamber 410, and the other end of the suction channel 510 communicates with the suction port 320 of the pump body assembly 300. The low-temperature low-pressure refrigerant enters the liquid storage cavity 410 from the air inlet 420, impurities are filtered by the filter screen 450, then are discharged from the air outlet 430 and enter the air suction port 320 of the pump body assembly 300 through the air suction channel 510, the pump body assembly 300 compresses the low-temperature low-pressure refrigerant, then the high-temperature high-pressure refrigerant is discharged to the pump body cavity 121 through the air outlet of the pump body assembly 300, and finally the high-temperature high-pressure refrigerant is discharged through the outlet of the pump body shell 120. The inside of the liquid storage chamber 410 is thus formed as a low-temperature low-pressure chamber, and the motor chamber 111 and the pump body chamber 121 in the main housing 100 are formed as high-temperature high-pressure chambers.

The heat exchange between the motor chamber 111 and the reservoir chamber 410 may cause the pump body assembly 300 to suck air to overheat, thereby reducing the energy efficiency of the motor-driven compressor 1000. In order to solve the above-mentioned problems, referring to fig. 2, in the axial direction of the main housing 100, the electric compressor 1000 according to the embodiment of the present utility model sets a part of the wall surface of the liquid storage housing 400 and the corresponding wall surface of the motor housing 110 at intervals, that is, by forming an air heat insulation layer between the motor cavity 111 and the liquid storage cavity 410, the heat conduction between the motor cavity 111 and the liquid storage cavity 410 is effectively limited, the heat exchange between the two cavities is reduced, the refrigerant in the liquid storage cavity 410 is ensured to be at a lower temperature, and the energy efficiency of the electric compressor 1000 is improved.

As another embodiment, a thermal insulation material is filled between a portion of the wall surface of the liquid storage case 400 and the corresponding wall surface of the motor case 110. The heat insulating material can further limit heat conduction between the motor cavity 111 and the liquid storage cavity 410, ensure that the refrigerant in the liquid storage cavity 410 is at a lower temperature, and improve the energy efficiency of the electric compressor 1000. The heat insulating material can be made of a material with low heat conductivity coefficient, such as plastic and the like; porous materials, heat reflective materials, or vacuum materials may also be used.

Referring to fig. 2, it can be appreciated that, in order to further reduce the suction superheat of the pump body assembly 300, a portion of the wall surface of the connection pipe 500 is spaced apart from the corresponding wall surface of the main housing 100 in the radial direction of the main housing 100. I.e. by forming an air insulating layer between the motor cavity 111 and the suction channel 510. Because the motor cavity 111 is a high-temperature high-pressure cavity and the air suction channel 510 is a low-temperature low-pressure cavity, the air heat insulation layer can effectively limit heat conduction between the motor cavity 111 and the air suction channel 510, ensure that the refrigerant in the air suction channel 510 is at a lower temperature, and improve the energy efficiency of the electric compressor 1000.

It is understood that the heat insulating material is filled between a portion of the wall surface of the connection pipe 500 and the corresponding wall surface of the motor case 110. The heat insulating material can further limit heat conduction between the motor cavity 111 and the suction channel 510, ensure that the refrigerant entering the suction port 320 of the pump body assembly 300 is at a lower temperature, and improve the energy efficiency of the electric compressor 1000. The heat insulating material can be made of a material with low heat conductivity coefficient, such as plastic and the like; porous materials, heat reflective materials, or vacuum materials may also be used.

It will be appreciated that as another example, the motor housing 110 and the connection pipe 500 may be integrally formed, and a closed compartment is configured between the motor housing 110 and the connection pipe 500, i.e., a compartment is formed between an inner wall of the suction channel 510 and an inner wall of the motor chamber 111. The compartment may be evacuated to limit heat transfer between the motor compartment 111 and the suction channel 510 for better thermal insulation. The heat insulation material can be filled in the compartment, the heat insulation material can be made of a material with poor heat conduction effect, and the heat insulation material can further limit the heat conduction between the motor cavity 111 and the air suction channel 510, so that a good heat insulation effect is realized.

Referring to fig. 5, a vehicle of an embodiment of the present utility model includes the motor-driven compressor 1000 of the above embodiment. It can be appreciated that the vehicle according to the embodiment of the present utility model may be a new energy vehicle such as an electric vehicle, a hybrid vehicle, or a fuel vehicle such as a gasoline vehicle, which is not particularly limited herein.

The motor-driven compressor 1000 may be applied to an air conditioning system of a vehicle to provide air conditioning for cooling or heating an environment within the vehicle. The electric compressor 1000 of the embodiment of the present utility model may be a rotary compressor.

According to the vehicle provided by the embodiment of the utility model, the electric compressor 1000 of the embodiment of the first aspect is adopted, the electric compressor 1000 adopts the electric compressor 1000 of the embodiment of the first aspect, the electric compressor 1000 divides the liquid reservoir into the first cavity 411 positioned at one side of the air inlet 420 and the second cavity 412 positioned at one side of the air outlet 430 through the arrangement of the partition plate 440, at least part of the partition plate 440 is vertically or obliquely arranged and is provided with the communication port, the filter screen 450 is covered at the communication port, the vertical or oblique arrangement of the filter screen 450 is beneficial to the impurity on the filter screen 450 from automatically falling to the bottom of the first cavity 411, and the adhesion of the impurity on the filter screen 450 is effectively reduced, so that the air suction efficiency of the electric compressor 1000 is improved, and the operation reliability of the electric compressor 1000 is improved.

Since the vehicle adopts all the technical solutions of the electric compressor 1000 of the above embodiment, at least all the beneficial effects brought by the technical solutions of the above embodiment are provided, and will not be described in detail herein.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. An electric compressor, comprising:

a main housing;

the liquid storage shell is connected with the main shell, a liquid storage cavity is formed in the liquid storage shell, and the liquid storage shell is provided with an air inlet and an air outlet which are communicated with the liquid storage cavity;

the baffle is arranged in the liquid storage cavity, two ends of the baffle are respectively connected to the inner wall of the liquid storage cavity, the liquid storage cavity is divided into a first cavity and a second cavity, the first cavity is positioned at one side of the air inlet, the second cavity is positioned at one side of the air outlet, and at least part of the baffle is vertically or obliquely arranged and is provided with a communication port for communicating the first cavity with the second cavity;

the filter screen is arranged in the liquid storage cavity, connected with the partition plate and covered at the communication port.

2. The motor-driven compressor according to claim 1, wherein: the filter screen is located above the intersection of the axis of the air inlet and the partition plate.

3. The motor-driven compressor according to claim 1, wherein: the electric compressor further comprises a bottom foot used for supporting the main shell, an extension line of the filter screen intersects with a plane where the lower end face of the bottom foot is located, an intersection angle a which is located on one side facing the air inlet is defined as a, and the intersection angle a is larger than 0 degrees and smaller than 90 degrees.

4. The motor-driven compressor according to claim 1, wherein: the lower end face of the filter screen is positioned in the first cavity, and the upper end face of the filter screen is positioned in the second cavity.

5. The motor-driven compressor according to claim 1, wherein: the partition board is a straight board, a bent board or a plurality of connected boards.

6. The motor-driven compressor according to claim 1, wherein: along the axial direction of the main shell, part of the wall surface of the liquid storage shell is arranged at intervals with the corresponding wall surface of the main shell.

7. The motor-driven compressor according to claim 6, wherein: and heat insulation materials are filled between part of the wall surfaces of the liquid storage shell and the corresponding wall surfaces of the main shell.

8. The motor-driven compressor according to claim 1, wherein: the electric compressor further comprises a connecting pipe and a pump body assembly, the pump body assembly is arranged in the main shell, an air suction channel is formed in the connecting pipe, and the air suction channel is communicated with an air outlet of the liquid storage shell and an air suction port of the pump body assembly; along the radial direction of the main shell, part of the wall surface of the connecting pipe is arranged at intervals with the corresponding wall surface of the main shell.

9. The motor-driven compressor according to claim 8, wherein: and heat insulation materials are filled between part of the wall surfaces of the connecting pipes and the corresponding wall surfaces of the main shell.

10. The vehicle is characterized in that: comprising an electric compressor according to any one of claims 1 to 9.