CN217495781U

CN217495781U - Thermal management system and vehicle

Info

Publication number: CN217495781U
Application number: CN202221802218.5U
Authority: CN
Inventors: 高锃
Original assignee: Xiaomi Automobile Technology Co Ltd
Current assignee: Xiaomi Automobile Technology Co Ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-09-27
Anticipated expiration: 2032-07-12

Abstract

The utility model relates to a thermal management system and vehicle, this thermal management system includes first integrated module and second integrated module, first integrated module includes first body piece and sets up in the compressor of first body piece, be provided with at least one runner in the first body piece, and set up first opening and second opening on the first body piece, first opening links to each other with the refrigerant export of compressor, the second opening links to each other with the refrigerant entry of compressor, the second integrated module includes second body piece and sets up in the first heat exchanger of second body piece, be provided with at least one runner in the second body piece, and set up third opening and fourth opening on the second body piece, the third opening links to each other with the refrigerant import of first heat exchanger, the fourth opening links to each other with the refrigerant export of first heat exchanger, wherein, the first opening is used for linking to each other with the third opening. Therefore, pipelines for connecting each thermal management device in the thermal management system are reduced, the structure of the thermal management system is simplified, and the occupied space is reduced.

Description

Thermal management system and vehicle

Technical Field

The present disclosure relates to the field of vehicle technologies, and in particular, to a thermal management system and a vehicle.

Background

An air conditioning system is an important component of an automobile, and is capable of changing a temperature environment inside the automobile to enable a driver and passengers to obtain a good driving experience. The heat management devices in the prior art heat pipe system are distributed in a scattered manner by pipelines, for example, a condenser, an expansion valve, and a switching valve, and are connected by the pipelines. The design has the technical defects of complex pipeline arrangement, high occupied space and troublesome assembly.

SUMMERY OF THE UTILITY MODEL

The present disclosure is directed to a thermal management system and a vehicle, which solve the problems of the related art.

To achieve the above objects, the present disclosure provides a thermal management system comprising a first integrated module and a second integrated module;

the first integrated module comprises a first body block and a compressor arranged in the first body block, at least one flow channel is arranged in the first body block, a first opening and a second opening are arranged on the first body block, the first opening is connected with a refrigerant outlet of the compressor, and the second opening is connected with a refrigerant inlet of the compressor;

the second integrated module comprises a second body block and a first heat exchanger arranged on the second body block, at least one flow channel is arranged in the second body block, a third opening and a fourth opening are arranged on the second body block, the third opening is connected with a refrigerant inlet of the first heat exchanger, and the fourth opening is connected with a refrigerant outlet of the first heat exchanger;

wherein the first opening is used for being connected with the third opening.

Optionally, a refrigerant outlet of the compressor is connected to the first opening through a flow passage in the first body block, a refrigerant inlet of the compressor is connected to the second opening through a flow passage in the first body block, and/or,

and a refrigerant inlet of the first heat exchanger is connected with the third opening through a flow channel in the second body block, and a refrigerant outlet of the first heat exchanger is connected with the fourth opening through a flow channel in the second body block.

Optionally, the second integrated module further comprises a first expansion valve;

the first expansion valve is provided in the second body block, and the first expansion valve is provided in a flow passage between the third opening and a refrigerant inlet of the first heat exchanger.

Optionally, the thermal management system further comprises a third integrated module;

the third integrated module comprises a third body block and a second heat exchanger arranged on the third body block, at least one flow channel is arranged in the third body block, a fifth opening and a sixth opening are arranged on the third body block, the fifth opening is connected with a refrigerant inlet of the second heat exchanger, and the sixth opening is connected with a refrigerant outlet of the second heat exchanger;

wherein the fifth opening is used for being connected with the fourth opening.

Optionally, the refrigerant inlet of the second heat exchanger is communicated with the fifth opening through a flow channel in the third body block, and the refrigerant outlet of the second heat exchanger is connected with the sixth opening through a flow channel in the third body block.

Optionally, the third integrated module further comprises a second expansion valve;

the second expansion valve is provided in the third body block, and the second expansion valve is provided in a flow passage between the fifth opening and a refrigerant inlet of the second heat exchanger.

Optionally, the thermal management system further comprises a fourth integrated module;

the fourth integrated module comprises a fourth body block and a condenser arranged in the fourth body block, at least one flow channel is arranged in the fourth body block, a seventh opening and an eighth opening are arranged on the fourth body block, the seventh opening is connected with a refrigerant inlet of the condenser, and the eighth opening is connected with a refrigerant outlet of the condenser;

the seventh opening is used for being connected with the first opening, and the eighth opening is used for being connected with the third opening.

Optionally, the refrigerant inlet of the condenser is communicated with the seventh opening through a flow passage in the fourth body block, and the refrigerant outlet of the condenser is communicated with the eighth opening through a flow passage in the fourth body block.

Optionally, the thermal management system further comprises a fifth integrated module;

the fifth integrated module comprises a fifth body block and a first switch valve and a second switch valve which are arranged on the fifth body block;

the fifth body block is provided with at least one flow channel, a ninth opening, a tenth opening, an eleventh opening and a twelfth opening, and the ninth opening, the tenth opening and the eleventh opening are communicated through the flow channel in the fifth body block;

the first on-off valve is disposed on a flow passage between the ninth opening and the tenth opening, and the second on-off valve is disposed on a flow passage between the ninth opening and the eleventh opening;

the ninth opening is used for being connected with the first opening, the tenth opening is used for being communicated with the third opening, the eleventh opening is used for being communicated with the seventh opening, and the twelfth opening is used for being connected with the eighth opening;

wherein any one of the first integrated module, the second integrated module, and the fourth integrated module is provided to be capable of being stacked with the fifth integrated module.

Optionally, the fifth integrated module further comprises a third expansion valve;

a thirteenth opening is formed in the fifth body block, the thirteenth opening is connected with the ninth opening through a flow passage, and the thirteenth opening is used for being connected with the second opening;

the third expansion valve is provided in the fifth body block, and the third expansion valve is located in a flow passage between the ninth opening and the thirteenth opening.

Optionally, the fifth integrated module further comprises a gas-liquid separator;

the gas-liquid separator is provided in the fifth body block, and the gas-liquid separator is located in a flow passage between the refrigerant outlet of the third expansion valve and the thirteenth opening.

Optionally, the fifth integrated module further comprises a third on/off valve;

a fourteenth opening is formed in the fifth body block and is used for being connected with the fourth opening;

the third switch valve is arranged on the fifth body block, and is positioned on a flow passage between the thirteenth opening and the liquid inlet of the gas-liquid separator.

the fifth integrated module comprises a fifth body block and a third expansion valve arranged in the fifth body block;

the fifth body block is provided with at least one flow channel, the fifth body block is provided with a ninth opening, a thirteenth opening, a fourteenth opening, a fifteenth opening and a sixteenth opening, the ninth opening is connected with the thirteenth opening through the flow channel, and the fourteenth opening is connected with the fifteenth opening through the flow channel;

the third expansion valve is provided in the fifth body block, and the third expansion valve is located in a flow passage between the ninth opening and the thirteenth opening;

the ninth opening is used for being connected with the first opening, the thirteenth opening is used for being connected with the second opening, the fourteenth opening is used for being connected with the fourth opening, the fifteenth opening is used for being connected with the fifth opening, and the sixteenth opening is used for being connected with the sixth opening;

wherein any one of the first integrated module, the second integrated module, and the third integrated module is provided to be stackable with the fifth integrated module.

Optionally, the thermal management system further comprises a third expansion valve;

and a refrigerant inlet of the third expansion valve is connected with a refrigerant outlet of the compressor, and a refrigerant outlet of the third expansion valve is connected with a refrigerant inlet of the compressor.

According to another aspect of the present disclosure, a vehicle is provided that includes the vehicle thermal management system described above.

In the thermal management system provided by the disclosure, thermal management of a room (such as a driving cabin of a vehicle) can be realized by communicating corresponding thermal management devices. For example, when the passenger compartment needs to be heated, the first opening on the first body block and the third opening on the second body block can be communicated, so that the refrigerant outlet of the compressor and the refrigerant inlet of the first heat exchanger are communicated, and the high-temperature and high-pressure gaseous refrigerant flowing into the first heat exchanger from the refrigerant outlet of the compressor releases heat in the condenser in the first heat exchanger, so as to heat the passenger compartment. At this time, the first heat exchanger functions as an indoor condenser.

Moreover, the thermal management system adopts a modular design, so that the overall design and the overall spatial layout of each module of the thermal management system are favorably realized, the pipelines for connecting each thermal management device in the thermal management system are favorably reduced, the structure of the thermal management system is simplified, the occupied space is reduced, and the assembly of the thermal management system is favorably realized. In addition, when the thermal management system is applied to vehicles, the operation of correspondingly adjusting the position relation between the integrated modules is relatively convenient due to the modular design aiming at different vehicle types. Moreover, due to the modular design, the distance between each integrated module and the corresponding connecting structure is shorter, so that pipelines used for connecting different heat management devices in the heat management system can be reduced, or the length of the pipelines can be shortened, and the occupied space of the whole heat management system can be reduced.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the principles of the disclosure and not to limit the disclosure. In the drawings:

FIG. 1 is a schematic structural view of a thermal management system according to an embodiment of the present disclosure, in which flow channels are shown in dashed lines;

FIG. 2 is a schematic structural diagram of a fifth integrated module of the thermal management system provided by an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a fifth integrated module of a thermal management system provided by another embodiment of the present disclosure, in which only a portion of the runners are shown;

FIG. 4 is a pressure-enthalpy diagram for a time in the cabin cooling mode of the thermal management system provided by one embodiment of the present disclosure;

FIG. 5 is a pressure-enthalpy diagram for the second drive-cabin cooling mode of the thermal management system provided by one embodiment of the present disclosure;

FIG. 6 is a pressure-enthalpy diagram for the third cabin cooling mode of the thermal management system provided by one embodiment of the present disclosure;

FIG. 7 is a pressure-enthalpy diagram for a time of a cabin heating mode for a thermal management system provided by an embodiment of the present disclosure;

FIG. 8 is a pressure-enthalpy diagram for the second heating mode of the cabin provided by one embodiment of the present disclosure;

fig. 9 is a pressure-enthalpy diagram for the thermal management system provided by one embodiment of the present disclosure in the cabin heating mode three.

Description of the reference numerals

10-a first integrated module; 11-first bulk piece; 111-a first opening; 112-a second opening; 12-a compressor; 20-a second integrated module; 21-second body block; 211-third opening; 212-a fourth opening; 22-a first heat exchanger; 23-a first expansion valve; 30-a third integrated module; 31-third body block; 311-fifth opening; 312-a sixth opening; 32-a second heat exchanger; 33-a second expansion valve; 40-a fourth integrated module; 41-fourth body block; 411-seventh opening; 412-eighth opening; 42-a condenser; 50-a fifth integrated module; 51-fifth body block; 511-ninth opening; 512-tenth opening; 513-an eleventh opening; 514-twelfth opening; 515-a thirteenth opening; 516-a fourteenth opening; 517-a fifteenth opening; 518-sixteenth opening; 52-first on-off valve; 53-a second on-off valve; 54-a third expansion valve; 55-a third on-off valve; 56-gas-liquid separator; 60-flow channel; 70-pipeline.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative and explanatory of the disclosure and are not restrictive thereof.

In the present disclosure, the terms "first, second, etc. are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-3, the present disclosure provides a thermal management system and a vehicle having the same. The thermal management system comprises a first integrated module 10 and a second integrated module 20, wherein the first integrated module 10 comprises a first body block 11 and a compressor 12 arranged on the first body block 11, at least one flow passage 60 is arranged in the first body block 11, a first opening 111 and a second opening 112 are arranged on the first body block 11, the first opening 111 is connected with a refrigerant outlet of the compressor 12, and the second opening 112 is connected with a refrigerant inlet of the compressor 12. The second integrated module 20 comprises a second body block 21 and a first heat exchanger 22 arranged on the second body block 21, at least one flow channel 60 is arranged in the second body block 21, a third opening 211 and a fourth opening 212 are arranged on the second body block 21, the third opening 211 is connected with a refrigerant inlet of the first heat exchanger 22, and the fourth opening 212 is connected with a refrigerant outlet of the first heat exchanger 22, so that the refrigerant from the refrigerant outlet of the first heat exchanger 22 can be led out of the second body block 21. Wherein the first opening 111 is adapted to be connected to the third opening 211 to communicate the refrigerant outlet of the compressor 12 with the refrigerant inlet of the first heat exchanger 22.

In the thermal management system provided by the disclosure, thermal management of a room (such as a driving cabin of a vehicle) can be realized by communicating corresponding thermal management devices. For example, when it is necessary to heat the cabin, the first opening 111 of the first body block 11 may be connected to the third opening 211 of the second body block 21, so as to communicate the refrigerant outlet of the compressor 12 with the refrigerant inlet of the first heat exchanger 22, and the condenser 42 in the first heat exchanger 22 releases heat from the high-temperature and high-pressure gaseous refrigerant flowing into the first heat exchanger 22 from the refrigerant outlet of the compressor 12, thereby heating the cabin. At this time, the first heat exchanger 22 serves as the indoor condenser 42. The refrigerant condensed by the first heat exchanger 22 can flow out of the second bulk block 21 through the fourth opening 212.

Moreover, the thermal management system adopts a modular design, so that the overall design and the overall spatial layout of each module of the thermal management system are facilitated, pipelines for connecting each thermal management device in the thermal management system are reduced, the structure of the thermal management system is simplified, the occupied space is reduced, and the assembly of the thermal management system is facilitated. Specifically, the compressor 12 and the first heat exchanger 22 are integrated in the first body block 11 and the second body block 21, respectively, and when the compressor and the first heat exchanger are mounted, corresponding flow passages, openings, and the like can be designed in the first body block 11 and the second body block 21 as required. In addition, when the thermal management system is applied to vehicles, due to the fact that the thermal management system is of a modular design, operation of correspondingly adjusting the position relation between the integrated modules is relatively convenient for different vehicle types. Moreover, due to the modular design, the distance between each integrated module and the corresponding connecting structure is shorter, so that pipelines used for connecting different heat management devices in the heat management system can be reduced, or the length of the pipelines can be shortened, and the occupied space of the whole heat management system can be reduced.

In the present disclosure, the vehicle may be a conventional fuel automobile, a hybrid automobile, a pure electric automobile, and a fuel cell automobile, which is not limited by the present disclosure.

In addition, the thermal management system of the present disclosure may be applied to any other devices suitable for using the thermal management system, besides vehicles, and the present disclosure is not limited thereto.

In the present disclosure, the refrigerant outlet of the compressor 12 and the first opening 111 may be connected through a flow passage provided in the first body block 11, or may be connected through a short pipe provided separately. Similarly, the refrigerant inlet of the compressor 12 and the second opening 112 may be connected through a flow passage provided in the first body block 11, or may be connected through a short pipe provided separately, which is not limited in the present disclosure. Alternatively, as shown in fig. 1, in one embodiment of the present disclosure, the refrigerant outlet of the compressor 12 is connected to the first opening 111 through the flow passage 60 in the first body block 11, and the refrigerant inlet of the compressor 12 is connected to the second opening 112 through the flow passage 60 in the first body block 11. Therefore, the structure of the first integrated module 10 is simplified, so that the integration degree of the thermal management system can be further improved, the usage amount of the pipeline 70 is reduced, and the structure of the thermal management system is simplified.

In the present disclosure, the refrigerant inlet of the first heat exchanger 22 and the third opening 211 may be connected to each other through a flow passage provided in the second body block 21, or may be connected to each other through a short pipe provided separately. Similarly, the refrigerant outlet of the first heat exchanger 22 and the fourth opening 212 may be connected through a flow passage provided in the second body block 21, or may be connected through a short pipe separately provided, which is not limited in the present disclosure. Alternatively, as shown in fig. 1, in one embodiment of the present disclosure, the refrigerant inlet of the first heat exchanger 22 is connected to the third port 211 through the flow passage 60 in the second body block 21, and the refrigerant outlet of the first heat exchanger 22 is connected to the fourth port 212 through the flow passage 60 in the second body block 21. Therefore, the structure of the second integrated module 20 is simplified, so that the integration degree of the thermal management system can be further improved, the usage amount of the pipeline 70 is reduced, and the structure of the thermal management system is simplified.

Alternatively, as shown in fig. 1, in an embodiment of the present disclosure, the second integrated module 20 further includes a first expansion valve 23, the first expansion valve 23 is disposed at the second body block 21, and the first expansion valve 23 is disposed on the flow passage 60 between the third opening 211 and the refrigerant inlet of the first heat exchanger 22. For opening and closing the flow passage 60 between the third opening 211 and the refrigerant inlet of the first heat exchanger 22, or for throttling and depressurizing the refrigerant in the flow passage 60 between the third opening 211 and the refrigerant inlet of the first heat exchanger 22.

By providing the first expansion valve 23 directly on the second body block 21, a pipe connecting the first expansion valve 23 can be omitted, which is advantageous in simplifying the structure of the second integrated module 20 and the structure of the thermal management system. In addition, by providing the first expansion valve 23, the first heat exchanger 22 can be used as an indoor evaporator, which is advantageous for cooling the indoor space. Specifically, the first expansion valve 23 may throttle and depressurize the refrigerant entering the interior thereof, the refrigerant processed by the first expansion valve 23 is a low-temperature and low-pressure refrigerant, and the low-temperature and low-pressure refrigerant may be evaporated and absorb heat in the first heat exchanger 22, so that the driving cabin of the vehicle may be cooled.

The second body block 21 may have a first socket for receiving the first expansion valve 23, and the first socket may be connected to the third opening 211 and the refrigerant inlet of the first heat exchanger 22.

Optionally, as shown in fig. 1, in an embodiment of the present disclosure, the thermal management system further includes a third integrated module 30, the third integrated module 30 includes a third body block 31 and a second heat exchanger 32 disposed in the third body block 31, at least one flow channel 60 is disposed in the third body block 31, and a fifth opening 311 and a sixth opening 312 are disposed in the third body block 31, the fifth opening 311 is connected to a refrigerant inlet of the second heat exchanger 32, and the sixth opening 312 is connected to a refrigerant outlet of the second heat exchanger 32 for guiding the refrigerant from the second heat exchanger 32 out of the third body block 31. Wherein the fifth opening 311 is used to connect with the fourth opening 212.

Here, the second heat exchanger 32 may be used with the first heat exchanger 22 to increase the thermal management mode of the thermal management system and to increase the thermal management efficiency.

For example, the first heat exchanger 22 may be used as an indoor condenser and the second heat exchanger 32 may be used as an indoor evaporator, and the second heat exchanger 32 may be used in combination to cool the cabin. Specifically, referring to fig. 1, a refrigerant outlet of the compressor 12 may be connected to a refrigerant inlet of the first heat exchanger 22, and the refrigerant may be sequentially passed through the compressor 12, the first heat exchanger 22, the first expansion valve 23, and the second heat exchanger 32. The refrigerant can release heat in the first heat exchanger 22 and undergo a throttling and pressure reducing action of the first expansion valve 23, enabling the refrigerant to evaporate and absorb heat in the second heat exchanger 32 to reduce the temperature of the cabin.

It is understood that, in addition to throttling and depressurizing the refrigerant flowing out of the first heat exchanger 22 through the first expansion valve 23 disposed in the first body block 11, in other embodiments of the present disclosure, throttling and depressurizing may be performed through an expansion valve installed in another position, which is not limited by the present disclosure.

In addition, because the second heat exchanger 32 is arranged, the first heat exchanger 22 and the second heat exchanger 32 can be used as indoor evaporators to evaporate and absorb heat by arranging an expansion valve (such as a second expansion valve 33) at the upstream of the refrigerant inlet of the second heat exchanger 32, so that the heat exchange area of the heat exchangers is increased, and the refrigeration effect of the refrigerant in the riding cabin is improved.

In the present disclosure, the refrigerant inlet of the second heat exchanger 32 and the fifth opening 311 may be connected through a flow passage provided in the third body block 31, or may be connected through a short pipe provided separately. Similarly, the refrigerant outlet of the second heat exchanger 32 and the sixth opening 312 can be connected through the flow passage 60 in the third body block 31, or can be connected through another short pipe, which is not limited by the disclosure. Alternatively, as shown in fig. 1, in one embodiment of the present disclosure, the refrigerant inlet of the second heat exchanger 32 communicates with the fifth opening 311 through the flow passage 60 in the third body block 31, and the refrigerant outlet of the second heat exchanger 32 communicates with the sixth opening 312 through the flow passage 60 in the third body block 31. Therefore, the structure of the third integrated module 30 is simplified, the integration degree of the thermal management system is further improved, the usage amount of pipelines is reduced, and the structure of the thermal management system is simplified.

Alternatively, as shown in fig. 1, in an embodiment of the present disclosure, the third integrated module 30 further includes a second expansion valve 33, the second expansion valve 33 is disposed at the third body block 31, and the second expansion valve 33 is disposed at the flow passage 60 between the fifth opening 311 and the refrigerant inlet of the second heat exchanger 32, for opening or closing the flow passage 60 between the fifth opening 311 and the refrigerant inlet of the second indoor heat exchanger. Or the refrigerant in the flow passage 60 between the fifth opening 311 and the refrigerant inlet of the second heat exchanger 32 is throttled and depressurized.

By providing the second expansion valve 33 directly in the third body block 31, a pipe connecting the second expansion valve 33 can be omitted, which is advantageous in simplifying the structure of the third integrated module 30 and the thermal management system. Further, by providing the second expansion valve 33, the second heat exchanger 32 can be used as an indoor evaporator to cool the indoor space.

Moreover, with the arrangement, the first heat exchanger 22 and the second heat exchanger 32 can be used as indoor evaporators at the same time without additionally arranging expansion valves, and the refrigeration effect can be improved. Specifically, the refrigerant entering the first expansion valve 23 may be throttled and depressurized, and the refrigerant processed by the first expansion valve 23 is low-temperature and low-pressure refrigerant, which may be evaporated and absorb heat in the first heat exchanger 22. The refrigerant flowing out of the first heat exchanger 22 can also be subjected to throttling and pressure reduction by the second expansion valve 33 so as to be evaporated in the second heat exchanger 32 to absorb heat again, and thus, the effect of refrigerating the cab can be improved.

A second insertion port for inserting the second expansion valve 33 may be formed in the third body block 31, and the second insertion port is configured to communicate with the fifth opening 311 and the refrigerant inlet of the second heat exchanger 32.

Alternatively, as shown in fig. 1, in an embodiment of the present disclosure, the thermal management system may further include a fourth integrated module 40, the fourth integrated module 40 includes a fourth body block 41 and a condenser 42 disposed in the fourth body block 41, at least one flow channel 60 is disposed in the fourth body block 41, and a seventh opening 411 and an eighth opening 412 are disposed on the fourth body block 41, the seventh opening 411 is connected to a refrigerant inlet of the condenser 42, and the eighth opening 412 is connected to a refrigerant outlet of the condenser 42, wherein the seventh opening 411 is used to be connected to the first opening 111 to communicate a refrigerant outlet of the compressor 12 with a refrigerant inlet of the condenser 42, the eighth opening 412 is used to be connected to the third opening 211 to communicate a refrigerant outlet of the condenser 42 with the third opening 211, so that the refrigerant flowing out from the refrigerant outlet of the condenser 42 is directly introduced into the refrigerant inlet of the first heat exchanger 22, alternatively, the refrigerant flowing out of the refrigerant outlet of the condenser 42 is introduced into the refrigerant inlet of the first heat exchanger 22 through the first expansion valve 23.

By directly integrating the condenser 42 on the fourth body block 41 and connecting the fourth body block 41 with the first body block 11 and the second body block 21, the connection of the compressor 12 with the condenser 42, the first heat exchanger 22 and the first expansion valve 23 is realized, the arrangement is convenient, and the reduction of pipelines is facilitated.

Additionally, by using the condenser 42 with the first heat exchanger 22, the first expansion valve 23, etc., it is beneficial to increase the thermal management mode of the thermal management system.

For example, when the passenger compartment needs to be refrigerated, the high-temperature and high-pressure gaseous refrigerant flowing out of the refrigerant outlet of the compressor 12 may be introduced into the condenser 42, so that the refrigerant releases heat in the condenser 42 to form a medium-temperature and high-pressure liquid refrigerant, and thus, the medium-temperature and high-pressure liquid refrigerant may be subjected to the throttling and pressure-reducing action of the first expansion valve 23 to form a low-temperature and low-pressure liquid refrigerant, so that the refrigerant may be evaporated and absorb heat in the first heat exchanger 22 to refrigerate the passenger compartment.

It is understood that, in addition to throttling and depressurizing the refrigerant flowing out of the condenser 42 through the first expansion valve 23 provided in the second body block 21, the refrigerant may be throttled and depressurized through expansion valves installed at other positions in other embodiments of the present disclosure, which is not limited by the present disclosure.

In the present disclosure, the refrigerant inlet of the condenser 42 and the seventh opening 411 may be connected through a flow passage provided in the fourth body block 41, or may be connected through a separate short pipe. Similarly, the refrigerant outlet of the condenser 42 and the eighth opening 412 may be connected by a flow passage provided in the fourth body block 41, or by a separate short pipe, which is not limited in the present disclosure. Alternatively, as shown in fig. 1, in one embodiment of the present disclosure, the refrigerant inlet of the condenser 42 communicates with the seventh opening 411 through the flow passage 60 in the fourth body block 41, and the refrigerant outlet of the condenser 42 communicates with the eighth opening 412 through the flow passage 60 in the fourth body block 41. Therefore, the structure of the fourth integration module 40 is simplified, so that the integration degree of the thermal management system can be further improved, the use amount of pipelines is reduced, and the structure of the thermal management system is simplified.

Optionally, as shown in fig. 1, in an embodiment of the present disclosure, the thermal management system further includes a fifth integrated module 50, the fifth integrated module 50 may include a fifth body block 51 and a first switch valve 52 and a second switch valve 53 both disposed on the fifth body block 51, at least one flow channel 60 is disposed on the fifth body block 51, a ninth opening 511, a tenth opening 512, an eleventh opening 513 and a twelfth opening 514 are disposed on the fifth body block 51, and the ninth opening 511 and the eleventh opening 513 are connected through the flow channel 60 in the fifth body block 51.

The first switching valve 52 is disposed on the flow passage 60 between the ninth opening 511 and the tenth opening 512 for connecting or blocking the flow passage 60 between the ninth opening 511 and the tenth opening 512, and the second switching valve 53 is disposed on the flow passage 60 between the ninth opening 511 and the eleventh opening 513, so that the second switching valve 53 is used for connecting or blocking the flow passage 60 between the ninth opening 511 and the eleventh opening 513.

The ninth opening 511 is for being connected to the first opening 111 for communicating the refrigerant outlet of the compressor 12 with the refrigerant inlet of the first switching valve 52, the tenth opening 512 is for being communicated with the third opening 211 for communicating the refrigerant outlet of the first switching valve 52 with the refrigerant inlet of the first expansion valve 23 or the first heat exchanger 22, and the eleventh opening 513 is for being communicated with the seventh opening 411 for communicating the refrigerant outlet of the second switching valve 53 with the refrigerant inlet of the indoor condenser 42.

Wherein any one of the first integrated module 10, the second integrated module 20, and the fourth integrated module 40 is provided to be able to stack the fifth integrated modules 50 on each other. In other words, any one of the first integrated module 10, the second integrated module 20, and the fourth integrated module 40 may be attached to the fifth integrated module 50 and directly connected thereto. Thus, the pipeline and space can be saved. Alternatively, the third integrated module 30 may be provided to enable the fifth integrated modules 50 to be stacked one on another.

The first switch valve 52 and the second switch valve 53 are directly integrated on the fifth body block 51, and the fifth body block 51 is connected with the first body block 11, the second body block 21, the third body block 31 and the fourth body block 41, so that the first switch valve 52 and the second switch valve 53 are connected with heat management devices such as the compressor 12, the condenser 42, the first heat exchanger 22 and the first expansion valve 23, the arrangement is convenient, and pipelines and the like are reduced.

In addition, the first switching valve 52 and the second switching valve 53 are controlled to be opened and closed, so that a flow path through which the refrigerant passes can be controlled, and different heat management modes can be selected as required.

For example, referring to fig. 1, by controlling the opening and closing of the first and

second switching valves

52 and 53, the refrigerant flowing out of the refrigerant inlet of the compressor 12 may be made to flow into one of the condenser 42 and the first expansion valve 23, or into both the condenser 42 and the first expansion valve 23.

The fifth body block 51 may be formed with a third insertion port for inserting the first switching valve 52, which is provided to communicate with the flow passage 60 between the ninth opening 511 and the tenth opening 512. In addition, the fifth body block 51 may be formed with a fourth insertion port for inserting the second switching valve 53, which is provided to communicate with the flow passage 60 between the ninth opening 511 and the eleventh opening 513.

Optionally, as shown in fig. 1, the fifth integrated module 50 may further include a third expansion valve 54, the fifth body block 51 is provided with a thirteenth opening 515, the thirteenth opening 515 is connected to the ninth opening 511 through the flow passage 60, and the thirteenth opening 515 is adapted to be connected to the second opening 112 to be connected to the refrigerant inlet of the compressor 12, the third expansion valve 54 is provided in the fifth body block 51, and the third expansion valve 54 is located on the flow passage 60 between the ninth opening 511 and the twelfth opening 514 for conducting, intercepting or throttling-down the refrigerant flowing through the flow passage 60 between the ninth opening 511 and the twelfth opening 514.

The reduction of piping is also facilitated by integrating the third expansion valve 54 also in the fifth body block 51. Further, in the present embodiment, since the ninth opening 511 is provided for connecting to the first opening 111 and the thirteenth opening 515 is provided for connecting to the second opening 112, it corresponds to providing a bypass flow path between the refrigerant inlet and the refrigerant outlet of the compressor 12. When the passenger compartment needs to be warmed and the outside environment temperature is low, the third expansion valve 54 may be opened, so that a portion of the refrigerant flowing out of the refrigerant outlet of the compressor 12 can be returned to the refrigerant inlet of the compressor 12 via the third expansion valve 54, and the portion of the refrigerant is returned to the compressor 12 together with another refrigerant which has released heat via the first heat exchanger 22 and/or the second heat exchanger 32. Since the temperature of the refrigerant flowing back to the compressor 12 from the third expansion valve 54 is high, it mixes with the low-temperature refrigerant flowing back to the compressor 12 via the refrigerant outlet of the first heat exchanger 22 and/or the second heat exchanger 32, raising the temperature of the refrigerant returning to the compressor 12 as a whole. Therefore, based on the heat bypass effect, the temperature of the refrigerant entering the refrigerant inlet of the compressor 12 can be increased, the density of the refrigerant is increased, the mass flow is increased, the compressor 12 can operate at a higher rotating speed, the heating capacity of the heat management system is increased, the heat management system can normally work when the temperature of the external environment is lower, namely, the working temperature range of the heat management system can be expanded, and the requirement for heating the passenger compartment can be met. For example, the operating temperature of the thermal management system may be ramped down to-30 ℃.

Compared with the technical scheme that PTC auxiliary heating is adopted under a low-temperature environment to cause large power consumption in the related technology, the heat management system provided by the disclosure heats the driving cabin under a low-temperature condition by utilizing the self structure, and can carry out auxiliary heating without adopting PTC, so that the power consumption is favorably reduced. The third expansion valve 54 can perform a certain throttling, cooling and depressurizing function on the refrigerant flowing through the third expansion valve, so as to avoid the damage to the compressor 12 caused by the overhigh pressure and temperature of the refrigerant.

In this case, the fifth body block 51 may be formed with a fifth insertion port for inserting the third expansion valve 54, which is provided to communicate with the flow passage 60 between the ninth opening 511 and the thirteenth opening 515.

It is to be understood that, in addition to the integration of the third expansion valve 54 in the fifth body block 51 as described above, the third expansion valve 54 may not be integrated in the fifth body block 51, and the refrigerant inlet of the third expansion valve 54 may be connected to the first opening 111 of the first body block 11 using a pipe and the refrigerant outlet of the third expansion valve 54 may be connected to the second opening of the first body block 11 using a pipe. That is, in the present disclosure, there is one third expansion valve 54, and a refrigerant inlet of the third expansion valve 54 is connected to a refrigerant outlet of the compressor 12, and a refrigerant outlet of the third expansion valve 54 is connected to a refrigerant inlet of the compressor 12.

Alternatively, as shown in fig. 1, in an embodiment of the present disclosure, the fifth integrated module 50 may further include a gas-liquid separator 56, the gas-liquid separator 56 is disposed at the fifth body block 51, and the gas-liquid separator 56 is located on the flow passage 60 between the refrigerant outlet of the third expansion valve 54 and the thirteenth opening 515. By providing the corporation separator in the fifth body block 51, it is not necessary to separately provide the gas-liquid separator 56 with a mounting bracket or the like, which is advantageous in simplifying the structure. Meanwhile, the integration is convenient for saving occupied space.

The refrigerant outlet of the third expansion valve 54 may be connected to the inlet of the gas-liquid separator 56 through the flow passage 60 in the fifth body block 51 or another pipeline, which is not limited in the present disclosure, for example, the refrigerant outlet of the third expansion valve 54 may be connected to the first inlet of the gas-liquid separator 56 through the flow passage 60 in the fifth body block 51.

Optionally, as shown in fig. 1, in an embodiment of the present disclosure, the fifth integrated module 50 may further include a third on-off valve 55, the fifth body block 51 is provided with a fourteenth opening 516, the fourteenth opening 516 is configured to be connected to the fourth opening 212, the third on-off valve 55 is disposed on the fifth body block 51, and the third on-off valve 55 is located on the flow channel 60 between the thirteenth opening 515 and the liquid inlet of the gas-liquid separator 56, so as to be used for conducting or blocking the flow channel 60 between the thirteenth opening 515 and the liquid inlet of the gas-liquid separator 56.

By directly integrating the third on/off valve 55 on the fifth body block 51, the pipeline saving is facilitated, and the structure of the fifth integrated module 50 and the thermal management system is simplified.

Further, by providing the third on/off valve 55, the third on/off valve 55 can be opened when the refrigerant at the refrigerant outlet of the first heat exchanger 22 needs to be introduced into the gas-liquid separator 56, and the third on/off valve 55 can be closed when the refrigerant is not needed.

Alternatively, as shown in fig. 1, in one embodiment of the present disclosure, a fifteenth opening 517 and a sixteenth opening 518 are provided on the fifth body block 51, the fifteenth opening 517 is communicated with the fourteenth opening 516, the fifteenth opening 517 is used for being connected with the fifth opening 311, and the sixteenth opening 518 is used for being connected with the sixth opening 312.

Wherein any one of the first integrated module 10, the second integrated module 20, and the third integrated module 30 is provided to be stackable with the fifth integrated module 50. In other words, any one of the first integrated module 10, the second integrated module 20, the third integrated module 30, and the fourth integrated module 40 may be attached to the fifth integrated module 50 and directly connected thereto. Thus, the pipeline can be saved.

Optionally, as shown in FIG. 1, a gas-liquid separator 56 is also located in the flow passage 60 between the sixteenth opening 518 and the thirteenth opening 515 of the fifth body block 51. In this way, the refrigerant flowing out of the refrigerant outlet of the second heat exchanger 32 can be subjected to gas-liquid separation by the gas-liquid separator 56. That is, the refrigerant integrated in the fifth body block 51 can simultaneously perform gas-liquid separation of the refrigerant flowing through the first heat exchanger 22, the second heat exchanger 32, and the third expansion valve 54, thereby saving the number of separators.

It is understood that in other embodiments of the present disclosure, the sixth opening 312 of the second body block 21 may be connected to the refrigerant inlet of the compressor 12 by other gas-liquid separators that are not integrated into the second module.

In the present disclosure, specific distribution positions of the first switching valve 52, the second switching valve 53, the third expansion valve 54, and the gas-liquid separator 56 on the fifth body block 51 may be determined based on a specific shape of the fifth body block 51 and a specific position of the flow passage 60 inside thereof, and the present disclosure is not limited thereto. Alternatively, referring to fig. 2, in an embodiment of the present disclosure, the first on-off valve 52, the second on-off valve 53, the third on-off valve 55, the third expansion valve 54, and the gas-liquid separator 56 are arranged substantially in a long shape in the left-right direction of the drawing. In particular, the gas-liquid separator 56, the third expansion valve 54, the first on-off valve 52, and the second on-off valve 53 are arranged in this order in the left-right direction in the drawing.

Referring to fig. 3, in another embodiment of the present disclosure, the first on-off valve 52, the second on-off valve 53, the third on-off valve 55, the third expansion valve 54, and the gas-liquid separator 56 are substantially square in the drawing. In particular, the third expansion valve 54, the first switching valve 52, and the second switching valve 53 are arranged in this order in the vertical direction in the drawing.

In the present disclosure, the first integrated module 10, the second integrated module 20, the third integrated module 30, the fourth integrated module 40, and the fifth integrated module 50 may be directly connected to each other, that is, the first body block 11, the second body block 21, the third body block 31, the fourth body block 41, and the fifth body block 51 may be stacked on each other, and may be integrally bonded to each other by a fastener or a structural adhesive, and the corresponding openings of the respective body blocks may be aligned with each other.

As shown in fig. 1, the first integrated module 10, the second integrated module 20, the third integrated module 30, the fourth integrated module 40, and the fifth integrated module 50 may be connected to each other by a pipe, that is, the first body block 11, the second body block 21, the third body block 31, the fourth body block 41, and the fifth body block 51 may be connected to each other by a pipe 70, which is not limited in the present disclosure.

For example, the connection modes of the modules can be six types as follows: first, the first, second, third and fourth

integrated modules

10, 20, 30 and 40 are connected to the fifth integrated module 50 through pipes 70, and for example, referring to fig. 1, the first, second, third and fourth body blocks 11, 21, 31 and 41 are connected to the fifth body block 51 through pipes 70. Secondly, the first and fourth

integrated modules

10 and 40 are connected to the fifth integrated module 50 through the pipe 70, and the second and third

integrated modules

20 and 30 are directly connected to the integrated module assembly module, for example, the first and fourth body blocks 11 and 41 and the fifth body block 51 are stacked on each other, and the second and third body blocks 21 and 31 are connected to the fifth body block 51 through the pipe 70. Third, the fourth integrated module 40 is connected to the fifth integrated module 50 through the pipeline 70, and the first integrated module 10, the second integrated module 20, and the third integrated module 30 are directly connected to the fifth integrated module 50, for example, the fourth body block 41 is connected to the fifth body block 51 through the pipeline 70. The first body block 11, the second body block 21, the third body block 31, and the fifth body block 51 are stacked on each other. Fourth, the first, third and fourth

integrated modules

10, 30 and 40 are connected to the integrated fifth integrated module 50 through the pipe 70, and the second integrated module 20 is directly connected to the fifth integrated module 50, for example, the first, third and fourth body blocks 11, 31 and 41 are connected to the fifth body block 51 through the pipe 70, and the second and fifth body blocks 51 are stacked on each other. The fifth, first integrated module 10, second integrated module 20, and fourth integrated module 40 are connected to the fifth integrated module 50 via a conduit 70, and the third integrated module 30 is directly connected to the fifth integrated module 50. Sixth, the fourth integrated module 40 is omitted, and the first, second, and third

integrated modules

10, 20, and 30 are directly connected to the fifth integrated module 50. That is, the first body block 11, the second body block 21, the third body block 31, and the fifth body block 51 are stacked on one another.

In the embodiment shown in fig. 1, the fifth body block 51 is located at the center, and the first body block 11, the second body block 21, the third body block 31, the fourth body block 41, and the fifth body block 51 are located at the periphery of the fifth body block 51. It is understood that in other embodiments of the present disclosure, the first body block 11, the second body block 21, the third body block 31, the fourth body block 41 and the fifth body block 51 may have any other suitable arrangement, and the present disclosure is not limited thereto.

In addition, the present disclosure does not limit the specific type of refrigerant, and for example, the refrigerant may be tetrafluoroethane R134a, tetrafluoropropene R1234yf, carbon dioxide refrigerant R744, propane refrigerant R290, and the like. Optionally, when the thermal management system does not have the condenser 42, R134a, R1234yf, R744 and R290 may be selected. When the condenser 42 is provided with the condenser 42, R134a, R1234yf may be used as the refrigerant in consideration of compatibility.

The operation of the thermal management system according to the embodiment of the present disclosure in several typical operation modes will be described in detail below with reference to fig. 1 to 9, taking a vehicle as an example.

The following typical modes of operation of the thermal management system are described in detail: the control system comprises a first cabin cooling mode, a second cabin cooling mode, a third cabin cooling mode, a first cabin heating mode, a second cabin heating mode and a third cabin heating mode. Fig. 4 to 9 show pressure-enthalpy diagrams in the respective modes, in which the ordinate is the logarithmic value lnp of the absolute pressure and the abscissa is the specific enthalpy value h. In fig. 4 to 6, the difference between h1 and h4 is the cooling capacity per unit flow rate. In fig. 7 to 9, the difference between h2 and h3 is the amount of heating per unit flow rate.

First, a driving cabin cooling mode I

This mode may be performed when the cabin needs to be cooled. Taking the thermal management system shown in fig. 1 as an example, the flow process of the refrigerant in this mode is:

after being compressed by the compressor 12, the refrigerant enters the condenser 42 through the second on-off valve 53 to be condensed, the condensed refrigerant enters the first expansion valve 23 to be throttled and decompressed, so that the low-temperature and low-pressure liquid refrigerant is evaporated and absorbs heat in the first heat exchanger 22 to refrigerate the passenger compartment, and then the refrigerant returns to the refrigerant inlet of the compressor 12 through the third on-off valve 55 and the gas-liquid separator 56, thereby completing the cycle.

In this mode, the first on-off valve 52, the second expansion valve 33, and the third expansion valve 54 are all closed, the second on-off valve 53 and the third on-off valve 55 are opened, and the opening degree of the first electronic expansion valve can be adjusted according to the supercooling degree of the condenser 42.

In this mode, the specific flow path of the refrigerant may be: the refrigerant outlet of the compressor 12 → the first opening 111 in the first body block 11 → the ninth opening 511 in the fifth body block 51 → the second on-off valve 53 → the eleventh opening 513 in the fifth body block 51 → the seventh opening 411 in the fourth body block 41 → the condenser 42 → the eighth opening 412 in the fourth body block 41 → the twelfth opening 514 in the fifth body block 51 → the tenth opening 512 in the fifth body block 51 → the third opening 211 in the second body block 21 → the first expansion valve 23 → the first heat exchanger 22 → the fourth opening 212 in the second body block 21 → the fourteenth opening 516 in the fifth body block 51 → the third on-off valve 55 → the gas-liquid separator 56 → the thirteenth opening 515 in the fifth body block 51 → the second opening 112 in the first body block 11 → the refrigerant inlet of the compressor 12.

In this mode and in the following modes, the individual blocks may be connected to one another by pipes.

Second, driving cabin cooling mode two

This mode may be performed when the cabin needs to be cooled, especially when the cooling needs to be large. Taking the thermal management system shown in fig. 1 as an example, the flow process of the refrigerant in this mode is:

after being compressed by the compressor 12, the refrigerant enters the condenser 42 through the second switching valve 53 to be condensed, and the condensed refrigerant enters the first expansion valve 23 to be throttled and decompressed, so that the low-temperature and low-pressure liquid refrigerant is evaporated and absorbs heat in the first heat exchanger 22, and the refrigeration of the driving cabin is realized. Then, the low-temperature low-pressure two-phase refrigerant enters the second expansion valve 33 for throttling and depressurizing again, so that the low-temperature low-pressure liquid refrigerant absorbs heat in the second heat exchanger 32, and further refrigeration of the driving cabin is realized. Thereafter, the refrigerant returns to the refrigerant inlet of the compressor 12 through the gas-liquid separator 56, completing the cycle. So, through promoting the heat exchanger area, promote evaporation capacity, and then promote the refrigerating output, promoted refrigeration effect, as shown in figure 5, under this mode, the refrigerating output under the unit flow is greater than the refrigerating output under the unit flow that figure 4 shows.

In this mode, the first on-off valve 52, the third on-off valve 55, and the third expansion valve 54 are all closed, the second on-off valve 53, the first expansion valve 23, and the second expansion valve 33 are opened, and the opening degrees of the first expansion valve 23 and the second expansion valve 33 may be adjusted according to the supercooling degree of the condenser 42.

In this mode, the specific flow path of the refrigerant may be: the refrigerant outlet of the compressor 12 → the first opening 111 in the first body block 11 → the ninth opening 511 in the fifth body block 51 → the second switching valve 53 → the eleventh opening 513 in the fifth body block 51 → the seventh opening 411 in the fourth body block 41 → the condenser 42 → the eighth opening 412 in the fourth body block 41 → the twelfth opening 514 in the fifth body block 51 → the tenth opening 512 in the fifth body block 51 → the third opening 211 in the second body block 21 → the first expansion valve 23 → the first heat exchanger 22 → the fourth opening 212 in the second body block 21 → the fourteenth opening 516 in the fifth body block 51 → the fifteenth opening 517 in the fifth body block 51 → the fifth opening 311 in the third body block 31 → the second expansion valve 33 → the second heat exchanger 32 → the sixth opening 312 in the third body block 31 → the sixth opening 518 in the fifth body block 51 → the seventh opening 516 in the fifth body block 51 → the second opening 515 → the second expansion valve 112 → the second heat exchanger 32 → the sixth opening 312 in the third body block 31 → the seventh opening 518 in the fifth body block 51 → the seventh opening 518 → the seventh opening of the fifth body block 51 → the seventh opening 515 of the second expansion valve 33 → the second compression A refrigerant inlet of the machine 12.

Third, driving cabin cooling mode three

after being compressed by the compressor 12, the refrigerant enters the condenser 42 through the second switching valve 53 to be condensed, and the condensed refrigerant enters the first expansion valve 23 to be throttled and decompressed, so that the low-temperature and low-pressure liquid refrigerant is evaporated and absorbs heat in the first heat exchanger 22, and the refrigeration of the driving cabin is realized. And then the refrigerant enters the second heat exchanger 32 through the second expansion valve 33 to absorb heat, so that the refrigeration of the driving cabin is further realized, wherein the second expansion valve 33 is in a fully open state at the moment, and the throttling and pressure reducing effects on the refrigerant are not realized. Thereafter, the refrigerant returns to the refrigerant inlet of the compressor 12 through the gas-liquid separator 56, completing the cycle. So, through promoting the heat exchanger area, promote the evaporation capacity, and then promote the refrigerating output, promoted the refrigeration effect. As shown in fig. 6, in this mode, the cooling capacity per flow rate is larger than that shown in fig. 4.

In this mode, the first on-off valve 52, the third on-off valve 55, and the third expansion valve 54 are all closed, the second on-off valve 53, the first expansion valve 23, and the second expansion valve 33 are opened, the opening degree of the first expansion valve 23 can be adjusted according to the supercooling degree of the condenser 42, and the second expansion valve 33 is in the fully open state.

Fourth, heating mode of driving cabin

This mode can be performed when the cabin needs to be heated, especially when the ambient temperature is greater than > -15 ℃. Taking the thermal management system shown in fig. 1 as an example, the flow process of the refrigerant in this mode is:

after being compressed by the compressor 12, the refrigerant sequentially passes through the first switching valve 52 and the first expansion valve 23, at this time, the first expansion valve 23 is in a fully open state, the refrigerant is not throttled and depressurized, the high-temperature and high-pressure refrigerant enters the first heat exchanger 22 through the first expansion valve 23, heat is released in the first heat exchanger 22, and heating of the driving cabin is achieved. Then, the refrigerant enters the second expansion valve 33, and through the pressure reducing and throttling action of the second expansion valve 33, the low-temperature and low-pressure two-phase refrigerant enters the second heat exchanger 32 to absorb heat, and then enters the gas-liquid separator 56, and finally enters the refrigerant inlet of the electric compressor 12, thereby completing a heating cycle.

In this mode, the second on-off valve 53, the third on-off valve 55, and the third expansion valve 54 are all closed, the first on-off valve 52, the first expansion valve 23, and the second expansion valve 33 are all open, the first expansion valve 23 is fully open, and the opening degree of the second expansion valve 33 can be adjusted according to the supercooling degree of the first heat exchanger 22.

In this mode, the specific flow path of the refrigerant may be: the refrigerant outlet of the compressor 12 → the first opening 111 in the first body block 11 → the ninth opening 511 in the fifth body block 51 → the first switching valve 52 → the tenth opening 512 in the fifth body block 51 → the third opening 211 in the second body block 21 → the first expansion valve 23 → the first heat exchanger 22 → the fourth opening 212 in the second body block 21 → the fourteenth opening 516 in the fifth body block 51 → the fifteenth opening 517 in the fifth body block 51 → the fifth opening 311 in the third body block 31 → the second expansion valve 33 → the second heat exchanger 32 → the sixth opening 312 in the third body block 31 → the sixteenth opening 518 in the fifth body block 51 → the gas-liquid separator 56 → the thirteenth opening 515 in the fifth body block 51 → the second opening 112 in the first body block 11 → the refrigerant inlet of the compressor 12.

Fifth, heating mode of driving cabin

This mode can be performed when the cabin needs to be heated, especially when the ambient temperature is greater than > -20 ℃. Taking the thermal management system shown in fig. 1 as an example, the flow process of the refrigerant in this mode is:

after the refrigerant is compressed by the compressor 12, the high-temperature and high-pressure refrigerant is divided into two parts, wherein the first part sequentially passes through the first switch valve 52 and the first expansion valve 23, at this time, the first expansion valve 23 is in a fully open state, the refrigerant is not throttled and depressurized, the high-temperature and high-pressure refrigerant enters the first heat exchanger 22 through the first expansion valve 23, heat is released in the first heat exchanger 22, and heating of the driving cabin is realized. Then, the first part of refrigerant enters the second expansion valve 33, passes through the pressure reduction and throttling action of the second expansion valve 33, enters the second heat exchanger 32 for absorbing heat at low temperature and low pressure, and then enters the gas-liquid separator 56; at this time, the second part of the refrigerant enters the gas-liquid separator 56 through the third expansion valve 54, is mixed with the first part of the refrigerant, and finally enters the refrigerant inlet of the electric compressor 12, thereby completing one heating cycle, i.e., a low-temperature heating cycle. Due to the bypass effect, the heating effect of the heat management system can be improved. As shown in fig. 8, in this mode, the heating amount per flow rate is larger than that shown in fig. 7.

In this mode, the second and

third switching valves

53 and 55 are closed, the first switching valve 52, the first expansion valve 23, the second expansion valve 33, and the third expansion valve 54 are opened, the first expansion valve 23 is fully opened, and the opening degree of the second expansion valve 33 is adjusted according to the supercooling degree of the condenser 42.

In this mode, the refrigerant first passes through the refrigerant outlet of the compressor 12, the first opening 111 of the first body block 11 and the ninth opening 511 of the fifth body block 51 in this order, and then the first partial refrigerant specific flow path may be: the first open-close valve 52 → the tenth opening 512 in the fifth body block 51 → the third opening 211 in the second body block 21 → the first expansion valve 23 → the first heat exchanger 22 → the fourth opening 212 in the second body block 21 → the fourteenth opening 516 in the fifth body block 51 → the fifteenth opening 517 in the fifth body block 51 → the fifth opening 311 in the third body block 31 → the second expansion valve 33 → the second heat exchanger 32 → the sixth opening 312 in the third body block 31 → the sixteenth opening 518 in the fifth body block 51 → the gas-liquid separator 56 → the thirteenth opening 515 in the fifth body block 51 → the second opening 112 in the first body block 11 → the refrigerant inlet of the compressor 12.

The second portion refrigerant specific flow path may be: third expansion valve 54 → gas-liquid separator 56 → the thirteenth opening 515 of the fifth body block 51 → the second opening 112 in the first body block 11 → the refrigerant inlet of the compressor 12.

Sixth, heating mode for passenger compartment

This mode can be performed when the cabin needs to be heated, especially when the ambient temperature is greater than > -30 ℃. Taking the thermal management system shown in fig. 1 as an example, the flow process of the refrigerant in this mode is:

after the refrigerant is compressed by the compressor 12, the high-temperature and high-pressure refrigerant is divided into two parts, wherein the first part sequentially passes through the first switch valve 52 and the first expansion valve 23, at this time, the first expansion valve 23 is in a fully open state, the refrigerant is not throttled and depressurized, the high-temperature and high-pressure refrigerant enters the first heat exchanger 22 through the first expansion valve 23, heat is released in the first heat exchanger 22, and heating of the driving cabin is realized. Thereafter, the first part of the refrigerant enters the gas-liquid separator 56 through the third on/off valve 55; in addition, the second part of the refrigerant enters the gas-liquid separator 56 through the third expansion valve 54, is mixed with the first part of the refrigerant, and finally enters the refrigerant inlet of the electric compressor 12 to complete a heating cycle, i.e., a low-temperature heating cycle. Due to the bypass effect, the heating effect of the heat management system can be improved. As shown in fig. 9, in this mode, the heating amount per flow rate is larger than that shown in fig. 7.

In this mode, the second on-off valve 53 and the second expansion valve 33 are both closed, the first on-off valve, the third on-off valve 55, the first expansion valve 23, and the third expansion valve 54 are all open, and the first expansion valve 23 is fully open. The second expansion valve 33 adjusts the opening degree according to the supercooling degree of the condenser 42.

In this mode, the refrigerant first passes through the refrigerant outlet of the compressor 12, the first opening 111 of the first body block 11 and the ninth opening 511 of the fifth body block 51 in this order, and then the first partial refrigerant specific flow path may be: the first on-off valve 52 → the tenth opening 512 in the fifth body block 51 → the third opening 211 in the second body block 21 → the first expansion valve 23 → the first heat exchanger 22 → the third on-off valve 55 → the gas-liquid separator 56 → the thirteenth opening 515 of the fifth body block 51 → the second opening 112 in the first body block 11 → the refrigerant inlet of the compressor 12.

The first and second portions of the refrigerant are mixed by controlling the opening time of the third expansion valve 54, and then the mixed refrigerant enters the refrigerant inlet of the compressor 12.

It is to be understood that in the present disclosure, in addition to the above-described exemplary modes, the thermal management system may have any suitable thermal management mode based on the specific structure of the thermal management system provided by the present disclosure, and the present disclosure is not limited thereto.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the disclosure does not separately describe various possible combinations.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A thermal management system comprising a first integrated module and a second integrated module;

wherein the first opening is used for being connected with the third opening.

2. The thermal management system of claim 1, wherein a refrigerant outlet of the compressor is connected to the first opening via a flow passage in the first body block, a refrigerant inlet of the compressor is connected to the second opening via a flow passage in the first body block, and/or,

3. The thermal management system of claim 2, wherein the second integrated module further comprises a first expansion valve;

4. The thermal management system of claim 1, further comprising a third integrated module;

wherein the fifth opening is used for being connected with the fourth opening.

5. The thermal management system of claim 4 wherein the refrigerant inlet of the second heat exchanger communicates with the fifth opening through a flow passage in the third body block and the refrigerant outlet of the second heat exchanger communicates with the sixth opening through a flow passage in the third body block.

6. The thermal management system of claim 5, wherein the third integrated module further comprises a second expansion valve;

7. The thermal management system of any of claims 1-6, further comprising a fourth integrated module;

8. The thermal management system of claim 7 wherein the refrigerant inlet of the condenser communicates with the seventh opening through a flow passage in the fourth body block and the refrigerant outlet of the condenser communicates with the eighth opening through a flow passage in the fourth body block.

9. The thermal management system of claim 7, further comprising a fifth integrated module;

the fifth integrated module comprises a fifth body block, and a first switch valve and a second switch valve which are arranged in the fifth body block;

10. The thermal management system of claim 9, wherein the fifth integrated module further comprises a third expansion valve;

11. The thermal management system of claim 10, wherein the fifth integrated module further comprises a gas-liquid separator;

the gas-liquid separator is provided in the fifth body block, and the gas-liquid separator is located on a flow passage between the refrigerant outlet of the third expansion valve and the thirteenth opening.

12. The thermal management system of claim 11, wherein the fifth integrated module further comprises a third on/off valve;

13. The thermal management system of claim 6, further comprising a fifth integrated module;

wherein any one of the first integrated module, the second integrated module, and the third integrated module is provided to be capable of being stacked with the fifth integrated module.

14. The thermal management system of any of claims 1-6, 13, further comprising a third expansion valve;

15. A vehicle comprising a thermal management system according to any of claims 1-14.