CN117774593A - Thermal management assembly and thermal management system - Google Patents

Abstract

The application discloses thermal management subassembly, including first heat exchanger, second heat exchanger and basal portion, first heat exchanger and second heat exchanger respectively with basal portion fixed connection, the projection of first heat exchanger on the plane of perpendicular to first direction and the projection of second heat exchanger on the plane of perpendicular to first direction overlap at least partially, first heat exchanger and second heat exchanger set up side by side along the second direction, the size of second heat exchanger in the third direction is greater than the size in the second direction and the size in the first direction, second direction and third direction mutually perpendicular. The first heat exchanger is located on a smaller side of the second heat exchanger, which is advantageous in reducing the size of the thermal management assembly in the first direction.

Description

Thermal management assembly and thermal management system

Technical Field

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

Background

The thermal management system comprises a plurality of functional components, the functional components are connected and communicated through pipelines, and at least a part of the functional components are integrated together to form a thermal management assembly in order to reduce pipelines. In the related art, the first heat exchanger and the second heat exchanger are fixedly connected with the base, the projection of the first heat exchanger on the plane vertical to the first direction is at least partially overlapped with the projection of the second heat exchanger on the plane vertical to the first direction, the projection of the first heat exchanger on the plane vertical to the second direction is at least partially overlapped with the projection of the second heat exchanger on the plane vertical to the second direction, the dimension of the second heat exchanger in the third direction is smaller than the dimension in the second direction and the dimension in the first direction, and the first heat exchanger is positioned on one side of the second heat exchanger with the largest dimension.

Disclosure of Invention

It is an object of the present application to provide a thermal management assembly and a thermal management system that facilitate reducing the size of the thermal management assembly in a first direction.

In order to achieve the above purpose, the present application adopts the following technical scheme:

a thermal management assembly comprising a first heat exchanger, a second heat exchanger, and a base, the first heat exchanger, and the second heat exchanger being fixedly connected with the base, respectively;

the projection of the first heat exchanger on a plane perpendicular to a first direction is at least partially coincident with the projection of the second heat exchanger on a plane perpendicular to the first direction, the projection of the first heat exchanger on a plane perpendicular to a second direction is at least partially coincident with the projection of the second heat exchanger on a plane perpendicular to the second direction, the dimension of the second heat exchanger in the third direction is greater than the dimension in the second direction and the dimension in the first direction, and the first direction, the second direction and the third direction are mutually perpendicular.

In this application, the size of second heat exchanger in the third direction is greater than the size in the second direction and the size in the first direction, and first heat exchanger is located the less one side of second heat exchanger size, is favorable to reducing the size of thermal management subassembly in the first direction.

In order to achieve the above purpose, the present application further adopts the following technical scheme: a thermal management system comprises a compressor, a first indoor heat exchanger, a second indoor heat exchanger and the thermal management assembly;

the outlet of the compressor can be communicated with the inner cavity of the base, the inlet of the compressor can be communicated with the inner cavity of the first heat exchanger, one port of the first indoor heat exchanger can be communicated with the inner cavity of the first heat exchanger, the other port of the first indoor heat exchanger can be communicated with the inner cavity of the base, one port of the second indoor heat exchanger can be communicated with the inner cavity of the base, and the other port of the second indoor heat exchanger can be communicated with the inner cavity of the first heat exchanger.

The heat management system is applied to the heat management assembly, the compressor, the first indoor heat exchanger and the second indoor heat exchanger are respectively communicated with the heat management assembly, the size of the second heat exchanger in the third direction is larger than that of the second heat exchanger and that of the first heat exchanger in the third direction, and the first heat exchanger is located on one side of the second heat exchanger with smaller size, so that the size of the heat management assembly in the first direction is reduced.

Drawings

FIG. 1 is a schematic perspective view of one embodiment of a thermal management assembly of the present application;

FIG. 2 is a schematic perspective view of another angle of an embodiment of a thermal management assembly of the present application;

FIG. 3 is a schematic perspective view of yet another angle of an embodiment of a thermal management assembly of the present application;

FIG. 4 is a schematic perspective view of another embodiment of a thermal management assembly of the present application;

FIG. 5 is a schematic perspective view of a further embodiment of a thermal management assembly of the present application;

FIG. 6 is an exploded view of one embodiment of a thermal management assembly of the present application;

FIG. 7 is a schematic view of an exploded view of another angle of an embodiment of a thermal management assembly of the present application;

FIG. 8 is a schematic view of an exploded construction of an embodiment of a base of the present application;

FIG. 9 is a schematic perspective view of an embodiment of a base of the present application;

FIG. 10 is a schematic perspective view of an embodiment of a valve island of the present application;

FIG. 11 is a schematic perspective view of another angle of an embodiment of a valve island of the present application;

FIG. 12 is a schematic perspective view of one embodiment of a valve island of the present application;

FIG. 13 is a schematic perspective view of an embodiment of a connecting bridge of the present application;

FIG. 14 is a perspective structural schematic view of the connecting bridge shown in FIG. 13;

FIG. 15 is a schematic view of another perspective view of an embodiment of a connecting bridge of the present application;

FIG. 16 is a perspective structural schematic view of an embodiment of a connecting bridge of the present application;

FIG. 17 is a system diagram of an embodiment of a thermal management system of the present application in a cooling mode;

FIG. 18 is a system diagram of an embodiment of a thermal management system of the present application in a cooling and battery cooling mode;

FIG. 19 is a system diagram of an embodiment of a thermal management system of the present application in a heating mode.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the terms "first," "second," and the like, as used in the specification and the claims herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one; "plurality" means two and more than two. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded.

The thermal management assembly of the exemplary embodiments of the present application is described in detail below with reference to the accompanying drawings. The features of the examples and embodiments described below may be supplemented or combined with one another without conflict.

According to one possible embodiment of the thermal management assembly of the present application, referring to fig. 1 to 3, the thermal management assembly comprises a first heat exchanger 1, a first heat exchanger 2, a second heat exchanger 3 and a base 20, the first heat exchanger 1, the first heat exchanger 2 and the second heat exchanger 3 being fixedly connected with the base 20, respectively. The projection of the first heat exchanger 1 onto a plane perpendicular to the first direction Y coincides at least partly with the projection of the second heat exchanger 3 onto a plane perpendicular to the first direction Y, the projection of the first heat exchanger 2 onto a plane perpendicular to the second direction X coincides at least partly with the projection of the second heat exchanger 3 onto a plane perpendicular to the second direction X, the first heat exchanger 1 and the second heat exchanger 3 are arranged side by side along the first direction Y, the first heat exchanger 2 and the second heat exchanger 3 are arranged side by side along the second direction X, the dimension of the second heat exchanger 3 in the third direction Z is larger than the dimension in the second direction X and the dimension in the first direction Y, the second direction X and the third direction Z are mutually perpendicular. The first heat exchanger 1 is located on the side of the second heat exchanger 3 where the size is smaller, and the first heat exchanger 2 is located on the other side of the second heat exchanger 3 where the size is smaller, which is advantageous for reducing the size of the thermal management assembly in the first direction Y.

The first heat exchanger 1, the first heat exchanger 2 and the second heat exchanger 3 are fixedly connected with different sides of the base 20 respectively, the base 20 is provided with a plurality of flow paths, the inner cavity of the first heat exchanger 2 and the inner cavity of the second heat exchanger 3 are communicated through one flow path of the base 20, and the inner cavity of the first heat exchanger 1 is communicated with the other flow path of the base 20. The first heat exchanger 1, the first heat exchanger 2 and the second heat exchanger 3 are arranged circumferentially, with a substantially L-shaped distribution or a T-shaped distribution. The first heat exchanger 1 and the first heat exchanger 2 are respectively positioned at two sides of the second heat exchanger 3 with smaller size, the peripheral side spaces of the first heat exchanger 1, the first heat exchanger 2 and the second heat exchanger 3 are reasonably utilized, and the communication among the inner cavity of the first heat exchanger 1, the inner cavity of the first heat exchanger 2 and the inner cavity of the second heat exchanger 3 is realized through the base 20. The first heat exchanger 1, the first heat exchanger 2 and the second heat exchanger 3 are close to each other, so that a connecting pipeline is omitted or shortened, the flow resistance can be reduced, and the occupied space of the heat management assembly is reduced.

In some possible embodiments, referring to fig. 1 to 3, the first heat exchanger 1 has a dimension in the third direction Z that is greater than the dimension in the second direction X and the dimension in the first direction Y, and the first heat exchanger 2 has a dimension in the third direction Z that is greater than the dimension in the second direction X and the dimension in the first direction Y. In an alternative embodiment, the first heat exchanger 1 has a dimension in the first direction Y that is greater than the dimension in the second direction X, the first heat exchanger 2 has a dimension in the first direction Y that is greater than the dimension in the second direction X, and the second heat exchanger 3 has a dimension in the first direction Y that is greater than the dimension in the second direction X. Further, the second heat exchanger 3 is located on the smaller side of the first heat exchanger 1, and the second heat exchanger 3 is located on the smaller side of the first heat exchanger 2, so that the structural arrangement of the first heat exchanger 1, the first heat exchanger 2 and the second heat exchanger 3 is compact and reasonable, and the occupied space of the heat management assembly is further reduced.

In some possible embodiments, referring to fig. 1-3, the thermal management assembly includes a reservoir 4, the first heat exchanger 1, the first heat exchanger 2, the second heat exchanger 3, and the reservoir 4 are each fixedly connected to the base 20, and an interior cavity of the reservoir 4 is in communication with an interior cavity of the base 20. The projection of the reservoir 4 onto a plane perpendicular to the first direction Y and the projection of the first heat exchanger 2 onto a plane perpendicular to the first direction Y at least partly coincide, the projection of the reservoir 4 onto a plane perpendicular to the second direction X and the projection of the first heat exchanger 1 onto a plane perpendicular to the second direction X at least partly coincide, the reservoir 4 and the first heat exchanger 2 are arranged side by side in the first direction Y, the reservoir 4 and the first heat exchanger 1 are arranged side by side in the second direction X, and the reservoir 4 is located between the angles formed by the first heat exchanger 1, the first heat exchanger 2 and the second heat exchanger 3. The first heat exchanger 1, the first heat exchanger 2, the second heat exchanger 3 and the liquid reservoir 4 are fixedly connected with different sides of the base 20 respectively, and the first heat exchanger 1, the first heat exchanger 2, the second heat exchanger 3 and the liquid reservoir 4 are arranged in a surrounding mode and are distributed in a square or rectangular mode. The communication among the inner cavities of the first heat exchanger 1, the inner cavities of the first heat exchanger 2, the inner cavities of the second heat exchanger 3 and the inner cavities of the liquid accumulator 4 is realized through the base 20 by reasonably utilizing the peripheral side spaces of the first heat exchanger 1, the first heat exchanger 2, the second heat exchanger 3 and the liquid accumulator 4. The first heat exchanger 1, the first heat exchanger 2, the second heat exchanger 3 and the liquid reservoir 4 are mutually close, a pipeline is omitted or shortened, the flow resistance can be reduced, and the occupied space of the heat management assembly is reduced.

In an alternative embodiment, the size of the reservoir 4 in the third direction Z is larger than the size in the second direction X, and the size of the reservoir 4 in the third direction Z is larger than the size in the first direction Y. The first heat exchanger 1 and the first heat exchanger 2 are positioned on two sides of the smaller size of the liquid reservoir 4, the liquid reservoir 4 is positioned on one side of the smaller size of the first heat exchanger 2, the liquid reservoir 4 is positioned on one side of the smaller size of the first heat exchanger 1, and the distribution forms enable the structural arrangement of the first heat exchanger 1, the first heat exchanger 2, the second heat exchanger 3 and the liquid reservoir 4 to be more compact and reasonable, so that the occupied space of the heat management assembly is further reduced.

Referring to fig. 8 and 9, the base 20 includes a valve island 7 and a connection bridge 6, the connection bridge 6 and the valve island 7 are connected to each other, and the valve island 7 is located at one side of the connection bridge 6 in the length direction. The length direction of the connecting bridge 6 is parallel or coincident with the third direction Z, the width direction of the connecting bridge 6 is parallel or coincident with the first direction Y, and the thickness direction of the connecting bridge 6 is parallel or coincident with the second direction X. The dimensions of the valve island 7 in the third direction Z are smaller than in the first direction Y and in the second direction X. The dimensions of the connecting bridge 6 in the third direction Z are larger than in the first direction Y and in the second direction X. The connecting bridge 6 is located on one side with smaller size of the valve island 7, the valve island 7 is located on one side with larger size of the connecting bridge 6, and the connecting bridge 6 and the valve island 7 are distributed in a T shape, so that each structural part distributed on the periphery of the base 20 is more compact in structure, and occupation space of the thermal management assembly is reduced. In alternative embodiments, the base 20 may include only the valve island 7. In alternative embodiments, the base 20 may also comprise only the connecting bridge 6. In an alternative embodiment, the base 20 comprises both the connecting bridge 6 and the valve island 7. There is no particular limitation herein, and is selected according to the use requirements of the thermal management assembly.

In some possible embodiments, referring to fig. 3, each structural component of the thermal management assembly includes a top surface, a bottom surface, a left side surface, a right side surface, a front side surface, and a rear side surface. The top and bottom surfaces of each structural member are located on opposite sides of each structural member in the third direction Z, the left and right sides of each structural member are located on opposite sides of each structural member in the second direction X, and the front and rear sides of each structural member are located on opposite sides of each structural member in the first direction Y.

The dimensions of the first heat exchanger 2 in the third direction Z, the dimensions of the second heat exchanger 3 in the third direction Z and the dimensions of the connecting bridge 6 in the third direction Z are substantially identical, the dimensions of the first heat exchanger 2 in the first direction Y, the dimensions of the second heat exchanger 3 in the first direction Y and the dimensions of the connecting bridge 6 in the first direction Y are substantially identical. The right side of the connecting bridge 6 is fixedly connected with the left side of the first heat exchanger 2, and the left side of the connecting bridge 6 is fixedly connected with the right side of the second heat exchanger 3. The distribution forms enable the top surface of the first heat exchanger 2, the top surface of the second heat exchanger 3 and the top surface of the connecting bridge 6 to be approximately in the same plane, and the bottom surface of the first heat exchanger 2, the bottom surface of the second heat exchanger 3 and the bottom surface of the connecting bridge 6 to be approximately in the same plane, so that the process can be simplified.

The dimensions of the first heat exchanger 1 in the third direction Z are larger than the dimensions of the first heat exchanger 2 in the third direction Z and the dimensions of the second heat exchanger 3 in the third direction Z. The bottom surface of the valve island 7 is fixedly connected with the top surface of the connecting bridge 6, and the front side surface of the first heat exchanger 1 is fixedly connected with the rear side surface of the valve island 7. The size of the liquid reservoir 4 in the third direction Z is smaller than the size of the first heat exchanger 2 in the third direction Z and the size of the second heat exchanger 3 in the third direction Z, and the top surface of the liquid reservoir 4 is fixedly connected with the bottom surface of the valve island 7. The liquid reservoir 4 is arranged in the triangular space formed by the first heat exchanger 1, the first heat exchanger 2 and the second heat exchanger 3, the first heat exchanger 1, the first heat exchanger 2, the second heat exchanger 3, the liquid reservoir 4, the connecting bridge 6 and the valve island 7 are orderly arranged according to the size characteristics of the liquid reservoir 4, the assembly and the fixation of each structural component of the heat management assembly are facilitated, the space can be effectively utilized, the structural arrangement is more compact and reasonable, and the occupied space of the heat management assembly is reduced.

Referring to fig. 6 to 7, the first heat exchanger 1 has a first port 11, a second port 12, a third port 13, and a fourth port 14, the first port 11, the third port 13, and the fourth port 14 are located on the same side, and the second port 12 is located on opposite sides of the first heat exchanger 1 from the first port 11. In this embodiment, when applied to the thermal management system, the first interface 11, the third interface 13 and the fourth interface 14 are respectively communicated with external spaces of different thermal management assemblies, and the second interface 12 is communicated with the inner cavity of the base 20. The first heat exchanger 1 has a first flow passage and a second flow passage which are isolated from each other in the first heat exchanger 1, the first port 11 and the second port 12 communicate through the first flow passage, and the third port 13 and the fourth port 14 communicate through the second flow passage. Optionally, when the heat exchange device is applied to a heat management system, the heat exchange medium flowing in the first flow channel is a refrigerant, the heat exchange medium flowing in the second flow channel is a cooling liquid, and the refrigerant flowing in the first flow channel and the cooling liquid flowing in the second flow channel exchange heat in the first heat exchanger 1.

Referring to fig. 6 to 7, the first heat exchanger 2 has a first port 21, a second port 22, a third port 23, and a fourth port 24, the second port 22, the third port 23, and the fourth port 24 are located on the same side, and the first port 21 and the second port 22 are located on opposite sides of the first heat exchanger 2. In the present embodiment, when applied to the thermal management system, the first port 21 communicates with the external space of the thermal management assembly, and the second port 22, the third port 23, and the fourth port 24 communicate with the inner cavity of the base 20, respectively. The first heat exchanger 2 has a third flow passage and a fourth flow passage which are isolated from each other in the first heat exchanger 2, the first port portion 21 and the second port portion 22 communicate through the third flow passage, and the third port portion 23 and the fourth port portion 24 communicate through the fourth flow passage. Optionally, when the heat exchange medium heat exchanger is applied to the heat management system, the heat exchange mediums flowing in the third flow channel and the fourth flow channel are refrigerants, the refrigerants flowing in different sections in the same loop in the third flow channel and the fourth flow channel are refrigerants, and the two paths of refrigerants exchange heat in the first heat exchanger 2, so that the heat exchange efficiency of the heat management system can be improved.

Referring to fig. 6 to 7, the second heat exchanger 3 has a first connection port 31, a second connection port 32, a third connection port 33, and a fourth connection port 34, the first connection port 31 and the second connection port 32 being located on the same side, the third connection port 33 and the fourth connection port 34 being located on the same side, the first connection port 31 and the third connection port 33 being located on opposite sides of the second heat exchanger 3. The first connection port 31 and the second connection port 32 communicate with different external spaces of the thermal management assembly, respectively, and the third connection port 33 and the fourth connection port 34 communicate with the inner cavity of the base 20, respectively. The second heat exchanger 3 has a fifth flow passage and a sixth flow passage which are isolated from each other in the second heat exchanger 3, the first connection port 31 and the second connection port 32 communicate through the fifth flow passage, and the third connection port 33 and the fourth connection port 34 communicate through the sixth flow passage. Optionally, when the heat exchange device is applied to the heat management system, the heat exchange medium flowing in the sixth flow channel is a refrigerant, the heat exchange medium flowing in the fifth flow channel is a cooling liquid, and the refrigerant flowing in the sixth flow channel and the cooling liquid flowing in the fifth flow channel exchange heat in the second heat exchanger 3. The structure and working principle of the double-channel heat exchanger are well known to those skilled in the art, and are not repeated in the present application.

Referring to fig. 6 to 7, the reservoir 4 has a first interface portion 41 and a second interface portion 42, the second interface portion 42 communicating with the inner cavity of the base 20, the first interface portion 41 communicating with the thermal management assembly external space. The reservoir 4 includes a cover 43 and a cylinder 44, and the cover 43 and the cylinder 44 are hermetically connected. The first interface 41 and the second interface 42 are provided to the cover 43; alternatively, the first interface 41 is provided in the cylinder 44, and the second interface 42 is provided in the cover 43. In an alternative embodiment, the cover 43 is assembled and fixed with the cylinder 44, and the cover 43 and the cylinder 44 are provided with internal threaded holes, and are rotationally fixed with the internal threads of the internal threaded holes through the external threads of the bolts. In an alternative embodiment, the cover 43 and the base 20 are of unitary construction. In alternative embodiments, the reservoir 12 may also be provided with a gas-liquid separation assembly, in which case the reservoir 12 may act as a gas-liquid separator. In an alternative embodiment, the liquid reservoir 12 may further include an inner cylinder and an outer cylinder, wherein a gas-liquid separation member is disposed in the inner cylinder, and a heat exchange tube is disposed in an interlayer cavity between the inner cylinder and the outer cylinder, so as to exchange heat between the high-pressure side refrigerant and the low-pressure side refrigerant.

Referring to fig. 4 and 13 to 16, the connection bridge 6 is at least partially located between the first heat exchanger 2 and the second heat exchanger 3, the first heat exchanger 2 and the second heat exchanger 3 are fixedly connected to both sides of the connection bridge 6 in the second direction X, and the inner cavity of the first heat exchanger 2 and the inner cavity of the second heat exchanger 3 are communicated through the inner cavity of the connection bridge 6. Specifically, the connection bridge 6 has a first passage 614, a second passage 615, and a third passage 616, the first passage 614 and the second passage 615 communicate with each other in the connection bridge 6, and the second passage 615 and the third passage 616 are isolated from each other in the connection bridge 6. The first channel 614 communicates with the second port 22 of the first heat exchanger 2 and the fourth connection port 34 of the second heat exchanger 3, the second channel 615 communicates with the external space of the thermal management assembly, and the third channel 616 communicates with the third port 23 of the first heat exchanger 2. In an alternative embodiment, referring to fig. 18, the first channel 614 extends in the thickness direction of the connection bridge 6 and penetrates both sides of the connection bridge 6, and the second channel 615 extends in the width direction of the connection bridge 6 and penetrates one side of the connection bridge 6. In an alternative embodiment, the central axis of the first channel 614 is perpendicular to the central axis of the second channel 615, the first channel 614 and the second channel 615 form a T-shaped channel, the pipe connection between the first heat exchanger 2 and the second heat exchanger 3 is shortened, and the process is simple.

Referring to fig. 13 to 16, the connection bridge 6 further has a fourth channel 617 and a fifth channel 618, the fourth channel 617 being in communication with the fourth port 24 of the first heat exchanger 2, the fifth channel 618 being in communication with the third connection port 33 of the second heat exchanger 3, the second channel 615, the third channel 616, the fourth channel 617 and the fifth channel 618 being isolated from each other in the connection bridge 6. The surface of the connecting bridge 6 has a first communication port 61, a second communication port 62 and a third communication port 63, the first communication port 61, the second communication port 62 and the third communication port 63 being located on different sides of the connecting bridge 6, respectively. The second communication port 62 and the third communication port 63 communicate through the first passage 614, the second communication port 62 communicates with the second port portion 22 of the first heat exchanger 2, the third communication port 63 communicates with the fourth connection port 34 of the second heat exchanger 3, and the first communication port 61 communicates with the external space of the thermal management assembly.

The first channel 614 and the second channel 615 are communicated with each other in the connecting bridge 6, the second channel 615, the third channel 616, the fourth channel 617 and the fifth channel 618 are isolated from each other in the connecting bridge 6, and part of the second channel 615, the third channel 616, the fourth channel 617 and the fifth channel 618 can be communicated with the external space of the thermal management assembly, so that the first heat exchanger 2 and the second heat exchanger 3 positioned at two opposite sides of the connecting bridge 6 are communicated through the internal channels of the connecting bridge 6, which is beneficial to reducing the pipeline connection between the first heat exchanger 2 and the second heat exchanger 3, and the connecting bridge 6, the first heat exchanger 2 and the second heat exchanger 3 form a plurality of channels for the circulation of heat exchange medium.

Referring to fig. 13 to 16, the surface of the connection bridge 6 has a fourth communication port 64, a fifth communication port 65, and a sixth communication port 66, the fourth communication port 64, the fifth communication port 65, and the sixth communication port 66 being located on the same side of the connection bridge 6, and the first communication port 61, the second communication port 62, the third communication port 63, and the fourth communication port 64 being located on different sides of the connection bridge 6, respectively. The surface of the connecting bridge 6 has a seventh communication port 67, an eighth communication port 68, and a ninth communication port 69, the second communication port 62, the seventh communication port 67, and the eighth communication port 68 are located on the same side of the connecting bridge 6, and the third communication port 63 and the ninth communication port 69 are located on the same side of the connecting bridge 6. The fourth communication port 64 and the seventh communication port 67 communicate through a third passage 616, the fifth communication port 65 and the eighth communication port 68 communicate through a fourth passage 617, and the sixth communication port 66 and the ninth communication port 69 communicate through a fifth passage 618. The ninth communication port 69 communicates with the inner cavity of the second heat exchanger 3, the seventh communication port 67 communicates with the third port portion 23 of the first heat exchanger 2, and the eighth communication port 68 communicates with the fourth port portion 24 of the first heat exchanger 2. The reasonable partial passage opening that sets up connecting bridge 6 is located the different sides of connecting bridge 6, can be used to communicate different structural component, and the reasonable partial passage opening that sets up connecting bridge 6 is located the same side of connecting bridge 6, can be used to communicate the different interfaces of same structural component, and the reasonable distribution position that sets up the passage opening of connecting bridge 6 is favorable to reducing the piping connection of thermal management subassembly to reduce thermal management subassembly's occupation space.

Referring to the placement position of fig. 13, the connecting bridge 6 includes a top surface, a bottom surface, a left side surface, a right side surface, a front side surface, and a rear side surface, the top surface and the bottom surface of the connecting bridge 6 are respectively located at opposite sides of the connecting bridge 6 along the third direction Z, the left side surface and the right side surface of the connecting bridge 6 are respectively located at opposite sides of the connecting bridge 6 along the second direction X, and the front side surface and the rear side surface of the connecting bridge 6 are respectively located at opposite sides of the connecting bridge 6 along the first direction Y. The second communication port 62, the seventh communication port 67 and the eighth communication port 68 are located on the right side face of the connection bridge 6 and communicate with the inner cavity of the first heat exchanger 2. The first communication port 61 is located at the front side of the connection bridge 6 and communicates with the external space of the thermal management assembly. The fourth communication port 64, the fifth communication port 65 and the sixth communication port 66 are located on the top surface of the connection bridge 6 and communicate with the inner cavity of the valve island 7. The third communication port 63 and the ninth communication port 69 are positioned on the left side surface of the connecting bridge 6 and are communicated with the inner cavity of the second heat exchanger 3.

Referring to fig. 13 and 15, the connection bridge 6 has a first groove portion 610 and a second groove portion 611, the groove opening of the first groove portion 610 and the groove opening of the second groove portion 611 are substantially elongated and are each substantially distributed along the length direction of the connection bridge 6, the first groove portion 610 is formed by recessing a portion of a face of the connection bridge 6 facing the first heat exchanger 2 inward, the second groove portion 611 is formed by recessing a portion of a face of the connection bridge 6 facing the second heat exchanger 3 inward, the groove cavities of the first groove portion 610 and the groove cavities of the second groove portion 611 are isolated from each other in the connection bridge 6, the groove opening of the first groove portion 610 faces the first heat exchanger 2, and the groove opening of the second groove portion 611 faces the second heat exchanger 3. The groove cavity of the first groove part 610 is located between the side of the first heat exchanger 2 facing the connecting bridge 6 and the connecting bridge 6, and the groove cavity of the second groove part 611 is located between the side of the second heat exchanger 3 facing the connecting bridge 6 and the connecting bridge 6. In the assembly process, the first heat exchanger 2 and the second heat exchanger 3 are fixedly connected with the connecting bridge 6 respectively, the edge of the notch of the first groove portion 610 is in sealing connection with one face of the first heat exchanger 2 facing the connecting bridge 6, and the edge of the notch of the second groove portion 611 is in sealing connection with one face of the second heat exchanger 3 facing the connecting bridge 6. The fourth channel 617 includes the slot cavities of the first slot portion 610 and the fifth channel 618 includes the slot cavities of the second slot portion 611. The first and second groove portions 610 and 611 may be of any shape and size. The fifth communication port 65 and the eighth communication port 68 on the different sides of the connection bridge 6 can be communicated by the arrangement of the first groove portion 610, thereby realizing the communication between the inner cavities of the first heat exchanger 2 and the inner cavities of the valve islands 7 on the different sides of the connection bridge 6. The sixth communication port 66 and the ninth communication port 69 on the different sides of the connection bridge 6 can be communicated by the provision of the second groove portion 611, so that the second heat exchanger 3 on the different sides of the connection bridge 6 is communicated with the inner chamber of the valve island 7. By providing the first groove portion 610 and the second groove portion 611, the number of holes punched inside the connection bridge 6 can be reduced, so that the manufacturing difficulty of the connection bridge 6 can be reduced.

Referring to fig. 13, the connection bridge 6 includes a first notch portion 612 and a second notch portion 613, and the first notch portion 612 and the second notch portion 613 are each provided separately from the internal passage of the connection bridge 6. The first notch 612 and the second notch 613 are located on opposite sides of the width direction of the connection bridge 6, and the first notch 612 and the second notch 613 may be any shape, and alternatively, the first notch 612 and the second notch 613 are substantially U-shaped. Alternatively, the first notch portion 612 and the second notch portion 613 are symmetrically arranged on the connecting bridge, and the connecting bridge 6 is substantially in an "i" shape.

In alternative embodiments, the connecting bridge 6 comprises only the first notch portion 612, or the connecting bridge 6 comprises only the second notch portion 613. The provision of the first notch portion 612 and/or the second notch portion 613 on the basis of ensuring the wall thickness of the internal passage of the connection bridge 6, that is, on the basis of ensuring the pressure resistance of the connection bridge 6, can reduce the weight of the thermal management assembly and the material cost. In an alternative embodiment, the connecting bridge 6 may be provided with holes to reduce the weight of the thermal management assembly and reduce the material cost. It is to be understood that the shape, number, position and size of the notch or hole provided in the connection bridge 6 are not particularly limited herein, as long as the pressure resistance of the connection bridge 6 can be ensured, and are selected according to the actual situation.

Referring to fig. 4, the size of the connection bridge 6 in the length direction thereof is larger than the size in the width direction thereof, and the size of the connection bridge 6 in the width direction thereof is larger than the size in the thickness direction thereof. The first heat exchanger 2 and the second heat exchanger 3 are respectively located at two opposite sides of the connecting bridge 6 in the thickness direction, and the first heat exchanger 2, the connecting bridge 6 and the second heat exchanger 3 are sequentially arranged along the second direction X. The first heat exchanger 2, the second heat exchanger 3 and the connecting bridge 6 are reasonably arranged according to the size characteristics of the first heat exchanger 2, the second heat exchanger 3 and the connecting bridge 6, and the first heat exchanger 2 and the second heat exchanger 3 are positioned on two sides of the connecting bridge 6 with smaller size, so that space can be effectively utilized, and the occupied space of the thermal management assembly is reduced.

Referring to fig. 5 and 10 to 12, the valve island 7 has a first passage 720 and a second passage 721, the first passage 720 and the second passage 721 being isolated from each other in the valve island 7, the surface of the valve island 7 having a first passage port 71 and a second passage port 72, the first passage port 71 and the second passage port 72 being located on different sides of the valve island 7, the first passage port 71 being in communication with the first passage 720, the first passage port 71 being in communication with the second port 12 of the first heat exchanger 1, the second passage port 72 being in communication with the second passage 721, the second passage port 72 being in communication with the second port 42 of the reservoir 4.

Referring to fig. 5 and 10 to 12, the valve island 7 further has a third passage 722, a fourth passage 723, a fifth passage 724, and a sixth passage 725, and in the valve island 7, the second passage 721 is isolated from the first passage 720, the third passage 722, the fourth passage 723, the fifth passage 724, and the sixth passage 725, and a part of the first passage 720, the second passage 721, the third passage 722, the fourth passage 723, the fifth passage 724, and the sixth passage 725 may communicate with an external space of the thermal management assembly. The first heat exchanger 1 and the reservoir 4 are fixedly connected with the valve island 7, respectively. The inner cavity of the first heat exchanger 1 is communicated with the inner passage of the valve island 7, and the inner cavity of the liquid reservoir 4 is communicated with the inner passage of the valve island 7, so that the pipeline connection between the first heat exchanger 1 and the liquid reservoir 4 is reduced. The valve island 7, the first heat exchanger 1 and the liquid reservoir 4 form a plurality of passages for the circulation of heat exchange media, and the plurality of passages are communicated with the outer space of the thermal management assembly, so that the practicability of the thermal management assembly can be improved, and the application scene of the thermal management assembly is enriched.

Referring to fig. 5 and 10 to 12, the surface of the valve island 7 has a third channel port 73, a fourth channel port 74, a fifth channel port 75, a sixth channel port 76 and a seventh channel port 77, the second channel port 72, the fourth channel port 74, the fifth channel port 75 and the sixth channel port 76 are located on the same side of the valve island 7, and the first channel port 71, the second channel port 72, the third channel port 73 and the seventh channel port 77 are located on different sides of the valve island 7. The first passage 720 communicates with the first passage opening 71, the second passage 721 communicates with the second passage opening 72 and the sixth passage opening 76, the third passage 722 communicates with the third passage opening 73, the fifth passage 724 communicates with the fifth passage opening 75, and the sixth passage 725 communicates with the seventh passage opening 77. The reasonable partial passage openings for setting the valve island 7 are positioned on different sides of the valve island 7 and can be used for communicating different structural components, the reasonable partial passage openings for setting the valve island 7 are positioned on the same side of the valve island 7 and can be used for communicating different interfaces of the same structural component, and the reasonable distribution positions of the passage openings for setting the valve island 7 are beneficial to reducing the pipeline connection of the thermal management assembly, so that the occupation space of the thermal management assembly is reduced.

In some embodiments, referring to fig. 3 and 12, the thermal management assembly includes a valve cartridge assembly 5, the valve cartridge assembly 5 being mounted with and sealingly connected to the valve island 7, the valve cartridge assembly 5 controlling the opening and closing of at least two passages in the valve island 7. In this embodiment, the valve core assembly 5 includes a first valve core 51, a second valve core 52, a third valve core 53 and a fourth valve core 54, the valve island 7 has a first installation cavity 78, a second installation cavity 79, a third installation cavity 710 and a fourth installation cavity 711, the first valve core 51, the second valve core 52, the third valve core 53 and the fourth valve core 54 are installed on the same side of the valve island 7, the first valve core 51 is at least partially installed in the first installation cavity 78, the second valve core 52 is at least partially installed in the second installation cavity 79, the third valve core 53 is at least partially installed in the third installation cavity 710, the fourth valve core 54 is at least partially installed in the fourth installation cavity 711, and the first valve core 51, the second valve core 52, the third valve core 53 and the fourth valve core 54 are respectively in sealing connection with the valve island 7. The first spool 51 controls the on-off of the fifth passage 724 and the sixth passage 725, the second spool 52 controls the on-off of the fourth passage 723 and the fifth passage 724, the third spool 53 controls the on-off of the third passage 722 and the fourth passage 723, and the fourth spool 54 controls the on-off of the first passage 720 and the third passage 722. Depending on the design of the thermal management system and the design of the thermal management assembly, in some other embodiments, the valve cartridge assembly 5 includes at least one of the first valve cartridge 51, the second valve cartridge 52, the third valve cartridge 53, and the fourth valve cartridge 54, the valve island 7 having at least one of the first mounting cavity 78, the second mounting cavity 79, the third mounting cavity 79, and the fourth mounting cavity 79, and the arrangement of the internal passages and ports of the valve island 7 is correspondingly adaptable.

Referring to fig. 10, the valve island 7 has a first groove 712 and a second groove 713, the first groove 712 and the second groove 713 being isolated from each other in the valve island 7, the notch of the first groove 712 and the notch of the second groove 713 being located on the same side of the valve island 7. The notches of the first groove 712 and the notches of the second groove 713 are substantially L-shaped. The second groove 713 is located on opposite sides of the valve island 7 from the spool assembly 5. The third passageway 722 includes the slot cavity of the first groove 712, and the second passageway 721 includes the slot cavity of the second groove 713.

In some embodiments, referring to fig. 8 and 10, the thermal management assembly includes a base plate 715, the base plate 715 having first, second, third, and fourth holes 716, 717, 718, and 719 disposed at intervals, each of the first, second, third, and fourth holes 716, 717, 718, and 719 extending in a thickness direction of the base plate 715 and penetrating both sides of the base plate 715 in the thickness direction. The first groove 712 and the second groove 713 are formed by recessing a part of a side of the valve island 7 facing the bottom plate 715 inward, and during the assembly process, the bottom plate 715 is fixedly connected with the valve island 7, the edge of the notch of the first groove 712 is in sealing connection with one side of the bottom plate 715, and the edge of the notch of the second groove 713 is in sealing connection with the same side of the bottom plate 715. The fourth passage port 74 and the sixth communication port 66 communicate with the first hole 716, the fifth passage port 75 and the fifth communication port 65 communicate with the second hole 717, the sixth passage port 76 and the fourth communication port 64 communicate with the third hole 718, respectively, and the fourth hole 719 communicates with the second passage port 72. By fixedly connecting the bottom plate 715 with the valve island 7, the edges of the notch of the first groove 712 and the edges of the notch of the second groove 713 are in sealing connection with one side surface of the bottom plate 715, and the manufacturing process of the valve island 7 can be simplified.

Referring to fig. 10, the valve island 7 further has an opening 714, the opening 714 and the internal passage of the valve island 7 are isolated from each other, the opening 714 may be of any shape, and alternatively, the opening 714 is substantially U-shaped. The provision of the opening 714 in addition to ensuring the wall thickness of the internal passage of the valve island 7, that is, in addition to ensuring the pressure resistance of the valve island 7, can reduce the weight of the thermal management assembly and the material cost. In alternative embodiments, the valve island 7 may also be provided with holes to reduce the weight of the thermal management assembly and reduce material costs. It is to be understood that the shape, number, position and size of the openings 714 or holes provided in the valve island 7 are not particularly limited herein, as long as the pressure resistance of the valve island 7 can be ensured, and are selected according to the actual situation.

The thermal management system is mainly used for managing the cold and heat so as to meet the requirements of the cold and heat, such as the cooling/heating requirements of the space in the cabin, the cooling requirements of the motor, the heating/cooling requirements of the battery, and the like. Wherein a part of the cold/heat is supplied by means such as running a refrigerant circulation circuit, starting a heater, the cooling liquid itself carrying the cold, and the like, and a part of the heat is obtained by means such as recovering the other part of the cold/heat. The part of the components in the thermal management system are integrated to form the thermal management assembly, and it can be understood that the components and the positions of the components of the thermal management assembly can be adjusted according to actual requirements, so that the functions of the components are not affected.

The thermal management assembly according to the technical solution of the present application may have various embodiments, where at least one embodiment may be applied to a vehicle thermal management system, at least one embodiment may be applied to other thermal management systems such as a household thermal management system or a commercial thermal management system, and the following description will take the thermal management assembly applied to the vehicle thermal management system as an example with reference to the accompanying drawings, where the fluid is a refrigerant and a cooling liquid, and the refrigerant may be R134a or CO2 or another form of refrigerant, and the cooling liquid may be a mixed solution of ethanol and water or another cooling medium.

In one possible embodiment, referring to fig. 17 to 19, in combination with fig. 1 to 16, the thermal management system comprises the thermal management assembly of any of the embodiments described above, further comprising a compressor 8, a first indoor heat exchanger 9 and a second indoor heat exchanger 10, this embodiment being described taking the thermal management assembly as an example comprising all the components shown in fig. 1 to 3. The first heat exchanger 1 is used as a water-cooled condenser for exchanging heat between the refrigerant and the cooling liquid in the cooling liquid loop in the cooling mode, and the cooling liquid in the cooling liquid loop can exchange heat with the atmospheric environment. The first heat exchanger 2 is used as an intermediate heat exchanger and is used for exchanging heat between the high-temperature refrigerant and the low-temperature refrigerant, so that the heat exchange efficiency of the system is improved. The second heat exchanger 3 serves as a battery cooler or a waste heat recoverer for heat exchanging the refrigerant with the coolant of the battery coolant circuit, which exchanges heat with the battery, thereby performing thermal management on the battery. The first indoor heat exchanger 9 serves as a condenser for heating the air on the peripheral side thereof. The second indoor heat exchanger 10 functions as an evaporator for cooling the air on the peripheral side thereof. In the figure, the solid line indicates a communication state, the arrow indicates a direction in which the refrigerant/cooling liquid flows, and the broken line indicates that the passage is in a closed state. In this application, the heat dissipation coolant loop and the battery coolant loop may be in communication, may also be isolated from each other, and may be selected according to the design of the thermal management system.

The air door is arranged beside the first indoor heat exchanger 9, so that whether air flows through the first indoor heat exchanger 9 or not and the air quantity flowing through the first indoor heat exchanger 9 can be controlled, and whether heat exchange exists at the first indoor heat exchanger 9 or not and the heat exchange effect of the first indoor heat exchanger 9 can be controlled. Similarly, a damper may be disposed beside the second indoor heat exchanger 10 to control whether there is heat exchange at the second indoor heat exchanger 10 and to control the heat exchange effect of the second indoor heat exchanger 10. In some embodiments, a damper may be provided, and the damper is located between the first indoor heat exchanger 9 and the second indoor heat exchanger 10, where the first indoor heat exchanger 9 is located at the downstream side of the second indoor heat exchanger 10 where the air flows, and the damper controls whether there is air flowing through the first indoor heat exchanger 9 and controls the amount of air flowing through the first indoor heat exchanger 9, and whether the damper is opened or closed, the air may flow through the second indoor heat exchanger 10.

Referring to fig. 1 to 17, the compressor 8, the first indoor heat exchanger 9 and the second indoor heat exchanger 10 are respectively connected with a thermal management assembly, and may be directly connected or may be connected through a pipe. The outlet of the compressor 8 is connected to the third port 73, the inlet of the compressor 8 is connected to the first port 21 of the first heat exchanger 2, the inlet of the first indoor heat exchanger 9 is connected to the first port 11 of the first heat exchanger 1, the outlet of the first indoor heat exchanger 9 is connected to the first port 41 of the reservoir 4, the inlet of the second indoor heat exchanger 10 is connected to the seventh port 77 of the valve island 7, and the outlet of the second indoor heat exchanger 10 is connected to the first port 61 of the connection bridge 6. The third port 13 and the fourth port 14 of the first heat exchanger 1 are connected to a heat-dissipating coolant circuit, and the first connection port 31 and the second connection port 32 of the second heat exchanger 3 are connected to a battery coolant circuit.

In this application, it is to be understood that the thermal management system includes a first valve 511, a second valve 521, a third valve 531, and a fourth valve 541. Specifically, the first valve spool 51 and the valve island 7 constitute a first valve 511, the first valve 511 having a shut-off state and a throttle state; the second spool 52 and the valve island 7 constitute a second valve 521, the second valve 521 having a shut-off state and a throttle state; the third valve core 53 and the valve island 7 constitute a third valve 531, and the third valve 531 has an all-on state, a shut-off state, and a throttle state; the fourth spool 54 and the valve island 7 constitute a fourth valve 541, and the fourth valve 541 has an all-pass state and a throttle state.

Referring to fig. 17, in combination with fig. 1 to 16, when only the passenger compartment has a cooling demand, the thermal management system is in a cooling mode, the fourth valve 541 is in an all-on state, the second valve 521 and the third valve 531 are in an off state, the first valve 511 is in a throttled state, and the compressor 8, the fourth valve 541, the first heat exchanger 1, the first indoor heat exchanger 9, the accumulator 4, the first heat exchanger 2, the first valve 511, and the second indoor heat exchanger 10 are in communication to form a refrigerant circuit.

The flow path of the refrigerant in the cooling mode is as follows: the high-temperature and high-pressure refrigerant discharged from the compressor 8 flows into the thermal management assembly from the third passage port 73, and then flows out of the thermal management assembly from the first port 11; then, after the refrigerant flowing out of the first port 11 flows through the first indoor heat exchanger 9, it flows into the thermal management assembly again from the first port 41, at which time the damper is closed so that the first indoor heat exchanger 9 does not exchange heat with air, and then flows out of the thermal management assembly again from the seventh passage port 77; the refrigerant flowing out of the seventh passage port 77 flows into the second indoor heat exchanger 10, and the second indoor heat exchanger 10 exchanges heat with air to realize passenger cabin refrigeration; the refrigerant heat-exchanged with the air flows into the thermal management assembly again from the first communication port 61, then flows out of the thermal management assembly from the first port 21, then flows into the compressor 8, and the compressor 8 compresses the refrigerant to a high temperature and a high pressure, thus circulating.

During the flow from the third port 73 to the first port 11, the refrigerant flows through the fourth mounting chamber 711 in which the fourth valve element 54 is located and the first flow passage of the first heat exchanger 1 in this order, and in the first heat exchanger 1, the refrigerant in the first flow passage exchanges heat with the coolant in the second flow passage, and the refrigerant temperature decreases.

During the flow of the first interface 41 to the seventh passage port 77, the refrigerant flows from the first interface 41 into the accumulator 4, the liquid refrigerant flowing through the accumulator 4 is stored in the accumulator 4, and the gaseous refrigerant flows from the second interface 42 out of the accumulator 4; the gaseous refrigerant flows into the fourth flow passage of the first heat exchanger 2, and in the first heat exchanger 2, the refrigerant in the fourth flow passage exchanges heat with the refrigerant in the third flow passage, the temperature of the refrigerant in the fourth flow passage decreases, then the refrigerant flowing out from the fourth port 24 flows through the first valve element 51 to be throttled, and then the refrigerant flows out of the thermal management assembly from the seventh passage port 77.

During the flow of the first communication port 61 to the first port portion 21, the refrigerant flows into the third flow passage of the first heat exchanger 2, then exchanges heat with the refrigerant in the fourth flow passage, and then flows out of the thermal management assembly.

Referring to fig. 18, in combination with fig. 1 to 16, when both the passenger compartment and the battery have cooling requirements, the thermal management system is in a passenger compartment and battery co-cooling mode, and the connection state of the thermal management system in the passenger compartment and battery co-cooling mode is substantially the same as the connection state of the thermal management system in the cooling mode, except that: the second valve 521 is in a throttled state and the coolant of the battery coolant circuit exchanges heat with the refrigerant of the refrigerant system through the second heat exchanger 3. The compressor 8, the fourth valve 541, the first heat exchanger 1, the first indoor heat exchanger 9, the accumulator 4, the first heat exchanger 2, the first valve 511, and the second indoor heat exchanger 10 are in communication to form a refrigerant circuit. The compressor 8, the fourth valve 541, the first heat exchanger 1, the first indoor heat exchanger 9, the accumulator 4, the first heat exchanger 2, the second valve 521, and the second heat exchanger 3 are communicated to form a refrigerant circuit.

Specifically, the refrigerant flowing out of the fourth port 24 is divided into two flow paths: one path of refrigerant flows through the first valve core 51 to be throttled, then flows out of the thermal management assembly from the seventh passage port 77, flows into the second indoor heat exchanger 10 from the seventh passage port 77, exchanges heat with air by the second indoor heat exchanger 10 to realize passenger cabin refrigeration, flows into the thermal management assembly again from the first communication port 61, and flows into the third flow passage of the first heat exchanger 2; the other refrigerant flows through the second valve core 52 to be throttled, and then flows into the sixth flow passage of the second heat exchanger 3, and in the second heat exchanger 3, the refrigerant in the sixth flow passage exchanges heat with the cooling liquid in the fifth flow passage, and the cooling liquid is reduced in temperature and can be used for cooling a liquid battery or a motor, and then flows into the third flow passage of the first heat exchanger 2, exchanges heat with the refrigerant in the fourth flow passage, and then flows out of the thermal management assembly.

It will be appreciated that when only the battery has a cooling requirement, the first valve 511 may be switched to an off state as compared to the passenger compartment and battery co-cooling mode.

Referring to fig. 19, when the thermal management system is in the heating mode in combination with fig. 1 to 16, the fourth valve 541 is in the full-on state, the first valve 511 and the third valve 531 are in the off state, the second valve 521 is in the throttled state, and the compressor 8, the fourth valve 541, the first heat exchanger 1, the first indoor heat exchanger 9, the accumulator 4, the first heat exchanger 2, the second valve 521, and the second heat exchanger 3 are in communication to form a refrigerant circuit.

The flow path of the refrigerant in the heating mode is as follows: the high-temperature and high-pressure refrigerant discharged from the compressor 8 flows into the thermal management assembly from the third passage port 73, and then flows out of the thermal management assembly from the first port 11; then, the refrigerant flowing out of the first port 11 flows through the first indoor heat exchanger 9, the first indoor heat exchanger 9 exchanges heat with air to heat the passenger compartment, the refrigerant after heat exchange with air flows into the thermal management assembly again from the first port 41, then flows out of the thermal management assembly from the first port 21, then flows into the compressor 8, and the compressor 8 compresses the refrigerant to a high temperature and a high pressure again, and the cycle is thus performed.

During the flow from the third port 73 to the first port 11, the refrigerant flows through the fourth installation chamber 711 in which the fourth valve element 54 is located and the first flow passage of the first heat exchanger 1 in this order, but the first heat exchanger 1 does not participate in heat exchange.

During the flow of the first interface 41 to the first interface 21, the refrigerant flows from the first interface 41 into the accumulator 4, the liquid refrigerant flowing through the accumulator 4 is stored in the accumulator 4, and the gaseous refrigerant flows out of the accumulator 4 from the second interface 42; the gaseous refrigerant flows into the fourth flow passage of the first heat exchanger 2, and in the first heat exchanger 2, the refrigerant in the fourth flow passage exchanges heat with the refrigerant in the third flow passage, the temperature of the refrigerant in the fourth flow passage decreases, and then the refrigerant flows through the second valve element 52 to be throttled. The refrigerant then flows into the sixth flow passage of the second heat exchanger 3, and in the second heat exchanger 3, the refrigerant in the sixth flow passage exchanges heat with the coolant in the fifth flow passage, and heat is acquired from the cooling circuit. The refrigerant then flows into the third flow passage of the first heat exchanger 2, exchanges heat with the refrigerant in the fourth flow passage, and then flows out of the thermal management assembly.

In some possible embodiments, in the low-temperature heating condition, a part of the refrigerant with higher temperature is introduced into the sixth channel of the second heat exchanger 3 through the branch where the third valve 531 is located, so as to realize air supplementing and enthalpy increasing.

In some possible embodiments, the fourth valve 541 is in a throttled state to enhance the heat transfer capability of the thermal management system.

In some possible embodiments, the thermal management system further comprises a check valve 551, the check valve 551 having a function of forward conducting and reverse blocking. The check valve 551 is disposed between the first communication port 61 and the second indoor heat exchanger 10, one end of the check valve 551 is connected to the outlet of the second indoor heat exchanger 10, and the other end of the check valve 551 is connected to the first communication port 61. The check valve 551 allows the refrigerant to flow from the second indoor heat exchanger 10 to the first communication port 61, but not from the first communication port 61 to the second indoor heat exchanger 10.

It should be understood that in the present application, the "connection" between two components may be a direct connection, or may be a connection through a pipeline, where only a pipeline may be disposed between two components, or a valve or other components may be disposed between two components besides a pipeline. Likewise, in the present application, "communication" between two components may be direct communication, or may be through a pipeline, where two components may be only in pipeline communication, or may be in communication after a valve or other components are further disposed between the two components. In this application, reference is made to an external space of the thermal management assembly, and a plurality of external parts may refer to the same space, or may refer to different spaces, which is determined according to the design of the system.

It should be understood that the integral structure in the present application refers to a component manufactured by stamping, extruding, machining, etc. using a complete piece of material, and is not subjected to a joining process such as brazing, gluing, etc. The means for fixedly connecting and mounting together in this application includes, but is not limited to, at least one of brazing, gluing, stent fastening, and the like.

The foregoing description is not intended to limit the preferred embodiments of the present application, but is not intended to limit the scope of the present application, and any simple modification, equivalent variation and variation of the above embodiments according to the technical matter of the present application can be made by any person skilled in the art without departing from the scope of the technical solution of the present application.

Claims (10)

1. The heat management assembly is characterized by comprising a first heat exchanger, a second heat exchanger and a base, wherein the first heat exchanger, the first heat exchanger and the second heat exchanger are fixedly connected with the base respectively;

The projection of the first heat exchanger on a plane perpendicular to a first direction is at least partially coincident with the projection of the second heat exchanger on a plane perpendicular to the first direction, the projection of the first heat exchanger on a plane perpendicular to a second direction is at least partially coincident with the projection of the second heat exchanger on a plane perpendicular to the second direction, the dimension of the second heat exchanger in the third direction is greater than the dimension in the second direction and the dimension in the first direction, and the first direction, the second direction and the third direction are mutually perpendicular.

2. The thermal management assembly of claim 1, further comprising a reservoir fixedly connected to the base;

the base is provided with a plurality of flow paths, the inner cavity of the first heat exchanger and the inner cavity of the second heat exchanger are communicated through one flow path of the base, the inner cavity of the first heat exchanger is communicated with the other flow path of the base, and the inner cavity of the liquid reservoir is communicated with the other flow path of the base;

the projection of the liquid reservoir on a plane perpendicular to the first direction and the projection of the first heat exchanger on a plane perpendicular to the first direction are at least partially overlapped, the projection of the liquid reservoir on a plane perpendicular to the second direction and the projection of the first heat exchanger on a plane perpendicular to the second direction are at least partially overlapped, and the liquid reservoir is positioned among included angles formed by the first heat exchanger, the first heat exchanger and the second heat exchanger.

3. The thermal management assembly of claim 2, wherein a dimension of the reservoir in the third direction is greater than a dimension in the first direction, the dimension of the reservoir in the third direction being greater than a dimension in the second direction.

4. The thermal management assembly of claim 1, wherein the first heat exchanger has a dimension in the third direction that is greater than the dimension in the second direction and the dimension in the first direction, the first heat exchanger having a dimension in the third direction that is greater than the dimension in the second direction and the dimension in the first direction.

5. The thermal management assembly of claim 4, wherein the first heat exchanger has a dimension in the first direction that is greater than a dimension in the second direction, the first heat exchanger having a dimension in the first direction that is greater than a dimension in the second direction.

6. The thermal management assembly of claim 1, wherein the first heat exchanger has a first port, a second port, a third port, and a fourth port, the first port, the third port, and the fourth port being on the same side, the second port being on opposite sides of the first heat exchanger from the first port, the second port being in communication with an interior cavity of the base, the first port, the third port, and the fourth port being in communication with different exterior spaces of the thermal management assembly, respectively;

The first heat exchanger has a first flow passage and a second flow passage, the first flow passage and the second flow passage are isolated from each other in the first heat exchanger, the first port and the second port communicate through the first flow passage, and the third port and the fourth port communicate through the second flow passage.

7. The thermal management assembly of claim 1, wherein the first heat exchanger has a first port, a second port, a third port, and a fourth port, the second port, the third port, and the fourth port being on the same side, the first port being on opposite sides of the first heat exchanger from the second port, the first port being in communication with an exterior space of the thermal management assembly, the second port, the third port, and the fourth port being in communication with an interior cavity of the base, respectively;

the first heat exchanger is provided with a third flow passage and a fourth flow passage, the third flow passage and the fourth flow passage are mutually isolated in the first heat exchanger, the first opening part and the second opening part are communicated through the third flow passage, and the third opening part and the fourth opening part are communicated through the fourth flow passage.

8. The thermal management assembly of claim 1, wherein the second heat exchanger has a first connection port, a second connection port, a third connection port, and a fourth connection port, the first connection port and the second connection port being on the same side, the third connection port and the fourth connection port being on the same side, the first connection port and the third connection port being on opposite sides of the second heat exchanger, the first connection port and the second connection port each communicating with a different external space of the thermal management assembly, the third connection port and the fourth connection port each communicating with an internal cavity of the base;

the second heat exchanger is provided with a fifth runner and a sixth runner, the fifth runner and the sixth runner are mutually isolated in the second heat exchanger, the first connecting port and the second connecting port are communicated through the fifth runner, and the third connecting port and the fourth connecting port are communicated through the sixth runner.

9. The thermal management assembly of claim 2, wherein the reservoir has a first interface portion and a second interface portion, the second interface portion in communication with the interior cavity of the base portion, the first interface portion in communication with the thermal management assembly exterior space;

The liquid storage device comprises a cover body and a cylinder body, wherein the cover body is fixedly connected with the cylinder body, and the first interface part and the second interface part are arranged on the cover body; or, the first interface part is arranged on the cylinder body, and the second interface part is arranged on the cover body.

10. A thermal management system comprising a compressor, a first indoor heat exchanger, a second indoor heat exchanger, and a thermal management assembly according to any one of claims 1 to 9;

the outlet of the compressor can be communicated with the inner cavity of the base, the inlet of the compressor can be communicated with the inner cavity of the first heat exchanger, one port of the first indoor heat exchanger can be communicated with the inner cavity of the first heat exchanger, the other port of the first indoor heat exchanger can be communicated with the inner cavity of the base, one port of the second indoor heat exchanger can be communicated with the inner cavity of the base, and the other port of the second indoor heat exchanger can be communicated with the inner cavity of the first heat exchanger.