Fluid management assembly and thermal management system

Abstract

The application discloses a fluid management assembly, which comprises a base, a first heat exchanger in sealing connection with a first side of the base, and a second heat exchanger in sealing connection with a second side of the base; the base has a first chamber and a second chamber which are not in communication with each other in the base; the first heat exchanger has a first flow channel and a second flow channel which are not in communication with each other in the first heat exchanger; and the second heat exchanger has a third flow channel. In the fluid management assembly, the first flow channel is in communication with the first chamber, the second flow channel is in communication with the second chamber, and the first chamber and the second chamber are respectively in communication with the third flow channel. By arranging the first chamber and the second chamber which are not in communication with each other in the base, when the fluid management assembly is applied to a system in operation, the first flow channel is in communication with the third flow channel through the first chamber, the second flow channel is in communication with the third flow channel through the second chamber, the system pipeline is omitted or shortened, the structure of the fluid management assembly is compact, and the fluid management assembly occupies a small space.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fluid management, and particularly relates to a fluid management assembly and a thermal management system. BACKGROUND

[0002] The thermal management system comprises a plurality of components, and the plurality of components are connected into the system through pipelines, and the pipelines are used to realize the communication between the components. In the related art, an intermediate heat exchanger is used to exchange heat between the high-temperature refrigerant before throttling and the low-temperature refrigerant after throttling and evaporation. The outlet of the high-temperature refrigerant of the intermediate heat exchanger, the inlet of the expansion valve, the outlet of the expansion valve and the inlet of the evaporator, and the outlet of the evaporator and the low-temperature refrigerant inlet of the intermediate heat exchanger are connected through pipelines. The long pipelines occupy a certain space, so that the components of the system occupy a large space. The inventor believes that there is a need for improvement. SUMMARY

[0003] In view of the above problems in the related art, the present application provides a fluid management assembly and a thermal management system with a compact structure.

[0004] In order to achieve the above-mentioned purpose, the following technical scheme is adopted in the present application: a fluid management assembly, comprising: a first heat exchanger, a second heat exchanger and a base, the base comprising a first side and a second side, the first side and the second side being located on opposite sides of the thickness direction of the base respectively, the first heat exchanger being in sealing connection with the first side, and the second heat exchanger being in sealing connection with the second side; the base having a first cavity and a second cavity, the first cavity and the second cavity being isolated from each other in the base; the first heat exchanger having a first flow channel and a second flow channel, the first flow channel and the second flow channel being not communicated with each other in the first heat exchanger, the first cavity being in communication with the first flow channel, and the second cavity being in communication with the second flow channel; the second heat exchanger having a third flow channel, one side of the third flow channel being in communication with the first cavity, and the other side of the third flow channel being in communication with the second cavity.

[0005] In the fluid management assembly of the present application, the first cavity is in communication with the first flow channel, the second cavity is in communication with the second flow channel, and the first cavity and the second cavity are respectively in communication with the third flow channel. By arranging the first cavity and the second cavity which are not communicated with each other in the base, when the fluid management assembly is applied to a system in operation, the first flow channel is communicated with the third flow channel through the first cavity, the second flow channel is communicated with the third flow channel through the second cavity, the system pipeline is omitted or shortened, so that the structure of the fluid management assembly is compact and occupies a small space.

[0006] Also provided is a heat management system, comprising an outdoor heat exchanger and the fluid management assembly as described above, the fluid management assembly having a first interface and a second interface, the first flow channel being capable of communicating the first interface and the first through hole, the second flow channel being capable of communicating the second chamber and the second interface, the first interface being in communication with an interface of the outdoor heat exchanger, and the second interface being in communication with another interface of the outdoor heat exchanger.

[0007] In the present application, when the heat management system is in operation, the first interface of the fluid management assembly is in communication with an interface of the outdoor heat exchanger, the second interface of the fluid management assembly is in communication with another interface of the outdoor heat exchanger, the first interface is in communication with the first flow channel, and the second interface is in communication with the second flow channel, so that the system pipeline is omitted or shortened through the fluid management assembly, thereby making the structure of the heat management system more compact. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 is a structural schematic diagram of an embodiment of the fluid management assembly of the present application;

[0009] Figure 2 is Figure 1 is a structural schematic diagram of the fluid management assembly from another angle;

[0010] Figure 3 is Figure 1 is a structural schematic diagram of the fluid management assembly after hiding some components;

[0011] Figure 4 is Figure 3 is a structural schematic diagram of the fluid management assembly from another angle;

[0012] Figure 5 is Figure 3 is an exploded structural schematic diagram of the fluid management assembly;

[0013] Figure 6 is Figure 3 is an exploded structural schematic diagram of the fluid management assembly from another angle;

[0014] Figure 7 is Figure 3 is a cutaway structural schematic diagram of the fluid management assembly;

[0015] Figure 8 is Figure 3 is a cutaway structural schematic diagram of the fluid management assembly;

[0016] Figure 9 is Figure 3 is a cutaway structural schematic diagram of the fluid management assembly;

[0017] Figure 10 isFigure 3 Cutaway view of the fluid management assembly shown;

[0018] Figure 11 is Figure 3 Cutaway view of the fluid management assembly shown;

[0019] Figure 12 is Figure 1 Cutaway view of the fluid management assembly shown with some components hidden;

[0020] Figure 13 is Figure 12 Cutaway view of the fluid management assembly shown;

[0021] Figure 14 is Figure 12 Another cutaway view of the fluid management assembly shown;

[0022] Figure 15 is Figure 12 Cutaway view of the fluid management assembly shown;

[0023] Figure 16 is Figure 12 Cutaway view of the fluid management assembly shown;

[0024] Figure 17 is Figure 12 Cutaway view of the fluid management assembly shown;

[0025] Figure 18 is a schematic diagram of a cooling mode embodiment of the thermal management system of the present application;

[0026] Figure 19 is a schematic diagram of a heating mode embodiment of the thermal management system of the present application. DETAILED DESCRIPTION

[0027] The exemplary embodiments will be described in detail herein with reference to the attached drawings; Figure 1 is a schematic diagram of a cooling mode embodiment of the thermal management system of the present application.

[0028] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0029] It should be understood that the use of "first", "second", and "third" words and similar words of distinction in the present application specification and claims do not indicate any order, number or importance, but are only used to distinguish different components. Similarly, "one" or "a" and similar words do not indicate a quantity limitation, but indicate the presence of at least one; "multiple" indicates a quantity of two or more. Unless otherwise indicated, "front", "back", "lower" and / or "upper" and similar words are for ease of description only and are not limited to a position or spatial orientation. "Include" or "contain" and similar words mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects.

[0030] The fluid management assembly of the example embodiment of the present application will be described in detail below with reference to the accompanying drawings. The features in the following embodiments and implementations can be supplemented or combined with each other without conflict.

[0031] According to a specific embodiment of the fluid management assembly 100 of the present application, with reference to Figures 1 to 11 , the fluid management assembly 100 comprises a first heat exchanger 5, a second heat exchanger 6 and a base 13, the base 13 is connected with the first heat exchanger 5, and the base 13 is connected with the second heat exchanger 5.

[0032] With reference to Figures 1 to 7 , in this embodiment, the first heat exchanger 5 is a plate heat exchanger. The first heat exchanger 5 comprises a plurality of plates, each plate is substantially rectangular in shape, each plate has a corner hole at each corner, and the corner holes of the plurality of plates are aligned to form a first channel 55, a second channel 53, a third channel 56 and a fourth channel 54. The plurality of plates are stacked to form a first flow channel and a second flow channel in the first heat exchanger 5, which are inter-plate channels. The first channel 55 and the fourth channel 54 are connected by the first flow channel. The second channel 53 and the third channel 56 are connected by the second flow channel. The structure and working principle of the plate heat exchanger are well known to those skilled in the art, and will not be described herein. The internal structure of the plate stack of the plate heat exchanger is not shown in the drawings.

[0033] The first heat exchanger 5 comprises a first surface 58 and a second surface 57, the first surface 58 is located on one side of the thickness direction of the first heat exchanger 5, and the second surface 57 is located on the other side of the first heat exchanger 5. In this embodiment, the first surface 58 is fixedly connected with the base 13, so that the first heat exchanger 5 and the base 13 are installed together. In some other embodiments, the first heat exchanger 5 and the base 13 can also be installed together through a connecting block, and the first heat exchanger 5 and the base 13 are fixedly connected with the connecting block respectively.

[0034] With reference to Figure 7 ,Figure 15 and Figure 16 The fluid management assembly 100 further comprises a communication pipe 12, which is sealingly connected with the first heat exchanger 5. In the embodiment, the communication pipe 12 is cooperated with the second channel 53, and at least a part of the communication pipe 12 is located in the second channel 53. The second channel 53 penetrates the first heat exchanger 5 along the thickness direction of the first heat exchanger 5, and one opening of the second channel 53 is located on the first surface 58, and the other opening of the second channel 53 is located on the second surface 57. A part of the communication pipe 12 is located in the second channel 53, and the opening of the second channel 53 on the second surface 57 is spaced apart from the communication pipe 12. The communication pipe 12 is sealingly connected with the first surface 58, and the communication pipe 12 blocks the opening of the second channel 53 on the first surface 58. The communication pipe 12 penetrates the first heat exchanger 5 along the thickness direction of the first heat exchanger 5, and the lumen of the communication pipe 12 is not communicated with the second channel 53 in the first heat exchanger 5.

[0035] In the embodiment, the cross section of the communication pipe 12 is substantially T-shaped, and the communication pipe 12 comprises a first part 121, a second part 122, and a third part 123 connecting the first part 121 and the second part 122. The first part 121, the third part 123, and the second part 122 are sequentially arranged along the thickness direction of the first heat exchanger 5. The inner cavity of the third part 123 is communicated with the inner cavities of the first part 121 and the second part 122. The first part 121 and the second part 122 are both located outside the second channel 53, and the third part 123 is located in the second channel 53. The first part 121 is extended outward from the end part of the third part 123, and the size of the first part 121 is larger than the size of the third part 123, and the size of the third part 123 is larger than the size of the opening of the second channel 53. The first part 121 is sealingly connected with the first surface 58 of the first heat exchanger 5, and the first part 121 blocks one end of the second channel 53 close to the base 13. The inner cavity of the first part 121 is communicated with the outside of the first heat exchanger 5. The second part 122 is extended outward from the other end part of the third part 123 to the second channel 53, and the size of the first part 121 is the same as the size of the third part 123. The third part 123 is spaced apart from the hole wall forming the second channel 53, and the third part 123 is located in the second channel 53 without affecting the flow of the fluid in the second channel 53.

[0036] The first hole 55, the fourth hole 54 and the third hole 56 extend along the thickness direction of the first heat exchanger 5 and pass through one of the first surface 58 and the second surface 57. In the embodiment, the openings of the first hole 55 and the third hole 56 are located on the first surface 58, and the opening of the fourth hole 54 is located on the second surface 57. The first hole 55 and the third hole 56 are located on the same side of the length direction of the first heat exchanger 5, and the first hole 55 and the third hole 56 are respectively located on two sides of the width direction of the first heat exchanger 5. The second hole 53 and the fourth hole 54 are located on the same side of the length direction of the first heat exchanger 5, and the second hole 53 and the fourth hole 54 are respectively located on two sides of the width direction of the first heat exchanger 5. The first hole 55 and the fourth hole 54 are located on the same side of the width direction of the first heat exchanger 5, and the first hole 55 and the fourth hole 54 are respectively located on two sides of the length direction of the first heat exchanger 5. The second hole 53 and the third hole 56 are located on the same side of the width direction of the first heat exchanger 5, and the second hole 53 and the third hole 56 are respectively located on two sides of the length direction of the first heat exchanger 5. The first hole 55 and the second hole 53 are diagonally distributed, and the fourth hole 54 and the third hole 56 are diagonally distributed. The length direction of the first heat exchanger 5 is defined as the height direction, the height of the first hole 55 and the third hole 56 is the same, and the height of the second hole 53 and the fourth hole 54 is the same. In other embodiments, the first hole 55, the second hole 53, the third hole 56 and the fourth hole 54 can be arranged as needed.

[0037] In some other embodiments, the communication pipe 12 can be in the shape of a "one" character, the opening of the second hole 53 on the first surface 58 is blocked by other components, and the communication pipe 12 is sealingly connected with the components. In some other embodiments, the first part 121 and the second part 122 can also be located in the second hole 53, the communication pipe 12 communicates with the outside of the first heat exchanger 5 through other connecting components, or the end part of the communication pipe 12 directly interfaces with other components without extending out of the second hole 53.

[0038] In some other embodiments, the communication pipe 12 cooperates with the fourth hole 54, the fourth hole 54 passes through the first heat exchanger 5 along the thickness direction of the first heat exchanger 5, at least part of the communication pipe 12 is located in the fourth hole 54, the communication pipe 12 blocks the opening of the fourth hole 54 on the first surface 58, the communication pipe 12 has a spacing between the opening of the fourth hole 54 on the second surface 57 and the communication pipe 12, and the communication pipe 12 has a spacing between the hole wall forming the fourth hole 54. At this time, the second hole 53 only passes through the second surface 57, and the opening of the second hole 53 is located on the second surface 57. The cooperation mode of the communication pipe 12 and the fourth hole 54 is the same as the cooperation mode of the communication pipe 12 and the second hole 53 described above, and the relevant description can be referred to.

[0039] In some other embodiments, the communication pipe 12 is in cooperation with the first hole channel 55, the first hole channel 55 penetrates the first heat exchanger 5 along the thickness direction of the first heat exchanger 5, the communication pipe 12 is at least partially located in the first hole channel 55, the communication pipe 12 blocks the opening of the first hole channel 55 at the second surface 57, the communication pipe 12 has a spacing between the opening of the first hole channel 55 at the first surface 58, and the communication pipe 12 has a spacing between the hole wall forming the first hole channel 55. At this time, the second hole channel 53 only penetrates the second surface 57, and the opening of the second hole channel 53 is located at the second surface 57. In some other embodiments, the communication pipe 12 can also be in cooperation with the third hole channel 56, and the cooperation structure is the same as that when the communication pipe 12 cooperates with the first hole channel 55, and the relevant description can be referred to. The communication pipe 12 is at least partially located in the hole channel, so the hole channel cooperating with the communication pipe 12 is the accommodation hole channel. In some other embodiments, the communication pipe 12 is an integral structure with the outermost plate of the first heat exchanger 5, and the outermost plate of the first heat exchanger 5 extends to form the communication pipe 12.

[0040] As shown in Figures 1 to 6 , the base 13 is a hexahedral structure, and with reference to the placement direction of Figure 5 , the base 13 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 of the base 13 and the bottom surface of the base 13 are respectively located at opposite sides in the height direction of the base 13, the left side surface of the base 13 and the right side surface of the base 13 are respectively located at opposite sides in the width direction of the base 13, and the front side surface of the base 13 and the rear side surface of the base 13 are respectively located at opposite sides in the thickness direction of the base 13. The first surface 58 of the first heat exchanger 5 is sealingly connected to the front side surface of the base 13. In some other embodiments, the base 13 can also not be a hexahedral structure, as long as it does not affect the connection with other components, and the present application is not limited thereto.

[0041] In the present embodiment, the base 13 includes a first recessed portion 131, a fifth recessed portion 132, and a second recessed portion 133. The first recessed portion 131 is formed by inwardly recessing a portion of the front side surface of the base 13, the fifth recessed portion 132 is formed by inwardly recessing a portion of the bottom wall of the first recessed portion 131, and the cavity of the first recessed portion 131 and the cavity of the fifth recessed portion 132 are in communication. The second recessed portion 133 is formed by inwardly recessing another portion of the front side surface of the base 13, and the cavity of the first recessed portion 131 and the cavity of the second recessed portion 133 are not in communication in the base 13.

[0042] The slot of the first recessed portion 131, the slot of the fifth recessed portion 132 and the slot of the second recessed portion 133 all face the first surface 58 of the first heat exchanger 5, and the edges of the slot of the first recessed portion 131 and the edges of the slot of the second recessed portion 133 are respectively in sealing connection with the first surface 58 of the first heat exchanger 5. The bottom wall of the first recessed portion 131, the bottom wall of the fifth recessed portion 132 and the bottom wall of the second recessed portion 133 are all arranged in a spaced manner from the first surface 58, and the bottom wall of the fifth recessed portion 132 is farther away from the first surface 58 than the bottom wall of the first recessed portion 131. The cavity of the first recessed portion 131 includes a space between the first surface 58 of the first heat exchanger 5, the side wall of the first recessed portion 131 and the bottom wall of the first recessed portion 131, and a space between the bottom wall of the first recessed portion 131 and the first surface 58 corresponding to the fifth recessed portion 132. The cavity of the fifth recessed portion 132 is located in space between the bottom wall of the first recessed portion 131 and the bottom wall of the fifth recessed portion 132. The cavity of the second recessed portion 133 includes a space between the first surface 58 of the first heat exchanger 5, the side wall of the second recessed portion 133 and the bottom wall of the second recessed portion 133.

[0043] The first recessed portion 131 and the fifth recessed portion 132 jointly constitute a stepped structure, specifically, the base portion 13 includes a first tread, a second tread, a third tread, a first kick and a second kick, the first kick connects the first tread and the second tread, and the second kick connects the second tread and the third tread. Among them, the first tread is a part of the front side of the base portion 13, the first kick is the side wall surface of the first recessed portion 131, the second tread is the bottom wall surface of the first recessed portion 131, the second kick is the side wall surface of the fifth recessed portion 132, and the third tread is the bottom wall surface of the fifth recessed portion 132. The first tread of the base portion 13 is in sealing connection with the first surface 58 of the first heat exchanger 5.

[0044] With reference to Figure 5 and Figure 7 In the embodiment, the base portion 13 is in concave-convex cooperation with the first heat exchanger 5, specifically, the first surface 58 of the first heat exchanger 5 is recessed in a direction away from the base portion 13, and the front side of the base portion 13 is convex in a direction close to the first heat exchanger 5, and the convex part of the base portion 13 is accommodated in the recessed part of the first heat exchanger 5. The end surface of the convex part of the base portion 13 is a plane, and the end surface of the recessed part of the first heat exchanger 5 is also a plane, and the two planes are in sealing connection, thereby realizing the sealing connection between the first heat exchanger 5 and the base portion 13.

[0045] In some other embodiments, the first heat exchanger 5 and the base 13 are mounted together by a connecting plate, the connecting plate is provided with a first through hole corresponding to the first recessed part 131, so that the first through hole is also part of the cavity of the first recessed part 131, and the side wall forming the first through hole is also part of the side wall of the first recessed part 131, and the slot of the first recessed part 131 is located on the connecting plate. The connecting plate is provided with a second through hole corresponding to the second recessed part 133, so that the second through hole is also part of the cavity of the second recessed part 133, and the side wall forming the second through hole is also part of the side wall of the second recessed part 133, and the slot of the second recessed part 133 is located on the connecting plate.

[0046] With reference to Figure 5 , Figure 6 and Figure 8 , the base 13 has a first through hole 201, a second through hole 202, and an assembly through hole 203. The first through hole 201 extends along the thickness direction of the base 13, and the opening of the first through hole 201 is located on the front side of the base 13. The second through hole 202 extends along the thickness direction of the base 13, and the opening of the second through hole 202 is located on the back side of the base 13. The assembly through hole 203 extends along the length direction of the base 13, and the opening of the assembly through hole 203 is located on the top surface of the base 13. The first through hole 201 and the second through hole 202 are respectively in communication with the assembly through hole 203, and the connection port of the first through hole 201 and the assembly through hole 203 is defined as a first port, and the connection port of the second through hole 202 and the assembly through hole 203 is defined as a second port. The axial extension direction of the assembly through hole 203 is defined as the height direction, and the heights of the first port and the second port are different. In this embodiment, the first port is farther away from the bottom surface of the base 13 than the second port.

[0047] In some possible embodiments, with reference to Figure 5 and Figure 9 , the base 13 further has a sixth through hole 204, which includes a hole section extending along the thickness direction of the base 13 and a hole section extending along the height direction of the base 13, and the two hole sections are in communication with each other. The opening of the hole section extending along the thickness direction of the base 13 is located on the front side of the base 13, and the opening of the hole section extending along the length direction of the base 13 is located on the top surface of the base 13. The top surface of the base 13 has an interface part for docking with other components.

[0048] The lumen of the communication pipe 12 is in communication with the groove cavity of the first groove portion 131, the first hole passage 55, the first through hole 201 and the sixth through hole 204 are respectively in communication with the groove cavity of the fifth groove portion 132, and the third hole passage 56 is in communication with the groove cavity of the second groove portion 133. The openings of the first through hole 201 and the sixth through hole 204 are located on the bottom wall of the fifth groove portion 132, the bottom wall of the fifth groove portion 132 is substantially in the shape of a waist, and the openings of the first through hole 201 and the sixth through hole 204 are respectively located on both sides of the length direction of the bottom wall of the fifth groove portion 132. The opening of the first hole passage 55 located on the first surface 58 is correspondingly arranged on the fifth groove portion 132, and in the plane perpendicular to the thickness direction of the first heat exchanger 5, the projection of the opening of the first hole passage 55 located on the first surface 58, the projection of the opening of the first through hole 201 located on the third tread, the projection of the opening of the sixth through hole 204 located on the third tread, and the projection of the opening of the communication pipe 12 close to the base 13 all fall within the projection contour of the first tread, the projection of the second groove portion 133 is located outside the projection contour of the first tread, the projection of the opening of the first hole passage 55 located on the first surface 58 falls within the projection of the third tread, and the projection of the opening of the communication pipe 12 close to the base 13 falls within the projection of the second tread. The groove cavities of the first groove portion 131 and the fifth groove portion 132 can be used for collecting fluid or distributing fluid. The fifth groove portion 132 can increase the volume of the chamber and facilitate the flow of fluid.

[0049] In some other embodiments, the base 13 can not be provided with the fifth groove portion 132, and the openings of the first through hole 201 and the sixth through hole 204 are located on the bottom wall of the first groove portion 131. In some other embodiments, the base 13 can not be provided with the sixth through hole 204, and the communication between the groove cavity of the first groove portion 131 and the outside of the fluid management assembly 100 is realized by other means.

[0050] In some possible embodiments, referring to Figure 5 and Figure 8 , the fluid management assembly 100 further comprises a first valve 82, the first valve 82 is in sealing connection with the base 13, the first valve 82 is installed on the top surface of the base 13, part of the first valve 82 is located in the assembly through hole 203, and the first valve 82 controls the communication or cutoff between the first through hole 201 and the second through hole 202. Optionally, the first valve 82 is an electronic expansion valve, and the first valve 82 has a communication state, a cutoff state and a throttling state. The structure and working principle of the electronic expansion valve are well known to those skilled in the art, and will not be described herein. The spool structure of the electronic expansion valve is not shown in the drawings.

[0051] Referring to Figures 6 to 8The first heat exchanger 5, the base 13, and the second heat exchanger 6 are sequentially arranged along the thickness direction of the base 13. The base 13 comprises a first side surface 136 and a second side surface 137, which are respectively located on opposite sides of the base 13 in the thickness direction, the first heat exchanger 5 is sealingly connected to the first side surface 136, and the second heat exchanger 6 is sealingly connected to the second side surface 137. The first side surface 136 is the front side surface of the base 13, and the second side surface 137 is the rear side surface of the base 13.

[0052] With reference to Figure 6 and Figure 7 In the embodiment, the base 13 is in concave-convex cooperation with the second heat exchanger 6. Specifically, the surface of the second heat exchanger 6 is concave in the direction away from the base 13, and the rear side surface of the base 13 is convex in the direction close to the second heat exchanger 6. The convex part of the base 13 is accommodated in the concave part of the second heat exchanger 6. The end surface of the convex part of the base 13 is a plane, and the end surface of the concave part of the second heat exchanger 6 is also a plane. The two planes are sealingly connected, thereby realizing the sealing connection between the second heat exchanger 6 and the base 13.

[0053] In the embodiment, the second heat exchanger 6 is a plate heat exchanger. The second heat exchanger 6 comprises a plurality of plate pieces, which are substantially rectangular. Each plate piece has a corner hole at each corner. The corner holes of the plurality of plate pieces are aligned to form a fifth passage 63, a sixth passage 64, a seventh passage 65, and an eighth passage 66. The plurality of plate pieces are stacked to form a third flow channel and a fourth flow channel in the second heat exchanger 6, which are plate-to-plate channels. The fifth passage 63 and the sixth passage 64 are connected through the third flow channel. The seventh passage 65 and the eighth passage 66 are connected through the fourth flow channel. The structure and working principle of the plate heat exchanger are known to those skilled in the art, and will not be described herein. The internal structure of the plate pieces of the plate heat exchanger is not shown in the drawings.

[0054] In this embodiment, the openings of the fifth passage 63 and the sixth passage 64 are located on the side of the second heat exchanger 6 close to the base 13, and the openings of the seventh passage 65 and the eighth passage 66 are located on the side of the second heat exchanger 6 away from the base 13. The fifth passage 63 and the seventh passage 65 are located on the same side of the length direction of the second heat exchanger 6, and the fifth passage 63 and the seventh passage 65 are located on the two sides of the width direction of the second heat exchanger 6, respectively. The sixth passage 64 and the eighth passage 66 are located on the same side of the length direction of the second heat exchanger 6, and the sixth passage 64 and the eighth passage 66 are located on the two sides of the width direction of the second heat exchanger 6, respectively. The fifth passage 63 and the sixth passage 64 are located on the same side of the width direction of the second heat exchanger 6, and the fifth passage 63 and the sixth passage 64 are located on the two sides of the length direction of the second heat exchanger 6, respectively. The seventh passage 65 and the eighth passage 66 are located on the same side of the width direction of the second heat exchanger 6, and the seventh passage 65 and the eighth passage 66 are located on the two sides of the length direction of the second heat exchanger 6, respectively. The fifth passage 63 and the eighth passage 66 are diagonally distributed, and the sixth passage 64 and the seventh passage 65 are diagonally distributed. The length direction of the second heat exchanger 6 is defined as the height direction, the height of the fifth passage 63 and the seventh passage 65 is the same, and the height of the sixth passage 64 and the eighth passage 66 is the same. In other embodiments, the fifth passage 63, the sixth passage 64, the seventh passage 65, and the eighth passage 66 can be arranged as needed.

[0055] The base 13 further comprises a fourth recessed portion 135 and a third recessed portion 134, the fourth recessed portion 135 is formed by inwardly recessing a part of the rear side surface of the base 13, and the third recessed portion 134 is formed by inwardly recessing another part of the rear side surface of the base 13, the cavity of the fourth recessed portion 135 and the cavity of the third recessed portion 134 are not communicated in the base 13. The openings of the fourth recessed portion 135 and the third recessed portion 134 are both towards the second heat exchanger 6, the edges of the openings of the fourth recessed portion 135 and the third recessed portion 134 are respectively sealedly connected with the surface of the second heat exchanger 6, and the bottom wall of the third recessed portion 134 and the surface of the second heat exchanger 6 have a spacing, and the bottom wall of the fourth recessed portion 135 and the surface of the second heat exchanger 6 have a spacing. The cavity of the fourth recessed portion 135 comprises the space between the surface of the second heat exchanger 6, the side wall of the fourth recessed portion 135 and the bottom wall of the fourth recessed portion 135. The cavity of the third recessed portion 134 comprises the space between the surface of the second heat exchanger 6, the side wall of the third recessed portion 134 and the bottom wall of the third recessed portion 134. The cavity of the fourth recessed portion 135 is communicated with the sixth passage 64, and the cavity of the third recessed portion 134 is respectively communicated with the fifth passage 63 and the second through hole 202.

[0056] The base 13 has a third through hole 205 and a fourth through hole 206, which are not communicated in the base 13, and extend along the width direction of the base 13, respectively, and the openings of the third through hole 205 and the fourth through hole 206 are located on the left side of the base 13. The third through hole 205 is communicated with the groove cavity of the second groove portion 133, and the opening of the third through hole 205 is located on the side wall of the second groove portion 133. The fourth through hole 206 is communicated with the groove cavity of the fourth groove portion 135, and the opening of the fourth through hole 206 is located on the side wall of the fourth groove portion 135.

[0057] In the embodiment, the fifth groove portion 132 and the second groove portion 133 are arranged along the width direction of the base 13, and the fifth groove portion 132 is away from the right side of the base 13 relative to the second groove portion 133. The fourth groove portion 135 and the third groove portion 134 are arranged along the length direction of the base 13, and the third groove portion 134 is away from the bottom surface of the base 13 relative to the fourth groove portion 135. The assembly through hole 203 and the sixth through hole 204 are arranged along the width direction of the base 13, and the assembly through hole 203 is away from the right side of the base 13 relative to the sixth through hole 204. The third through hole 205 and the fourth through hole 206 are arranged along the thickness direction of the base 13. The first groove portion 131 and the second groove portion 133 are not communicated in the base 13, and the fourth groove portion 135 and the third groove portion 134 are not communicated in the base 13, but in order to realize the communication relationship between the base 13 and the first heat exchanger 5 and the second heat exchanger 6, the first through hole 201, the second through hole 202, the sixth through hole 204, the third through hole 205, the fourth through hole 206 and the assembly through hole 203 are concentrated in the area of the base 13 close to the top surface of the base 13, so the position distribution of the above-mentioned through holes needs to be designed to meet the above-mentioned conditions.

[0058] The first through hole 201, the second through hole 202 and the assembly through hole 203 are located on the same side of the sixth through hole 204 in the width direction of the base 13. The length direction of the first heat exchanger 5 is defined as the height direction, the third through hole 205 and the fourth through hole 206 have the same height, the fifth groove portion 132, the third groove portion 134, the first through hole 201, the second through hole 202, the sixth through hole 204 and the assembly through hole 203 are located on the same side of the third through hole 205 in the height direction, and the third through hole 205 is closer to the bottom surface of the base 13. Since the first hole channel 55 and the third hole channel 56 have the same height, the first hole channel 55 is arranged corresponding to the first groove portion 131, therefore, in order to make the third through hole 205 communicated with the third hole channel 56, the second groove portion 133 is substantially in the shape of a long strip, and the bottom wall of the second groove portion 133 extends along the length direction of the first heat exchanger 5, for guiding the fluid to flow in the direction close to the top surface of the base 13.

[0059] In some possible embodiments, with reference to Figure 3 ,Figure 4 、 Figure 10 and Figure 11 The fluid management assembly 100 further comprises a gas-liquid separator 10, which comprises a cover 102, a barrel 101, and a gas-liquid separation component 103. The cover 102 is arranged at one end of the barrel 101 in the length direction, and is sealingly connected to the barrel 101. The other end of the barrel 101 away from the cover 102 is sealingly arranged. The gas-liquid separation component 103 is fixedly connected to the cover 102, and part of the gas-liquid separation component 103 is located in the inner cavity of the barrel 101. The gas-liquid separator 10 is arranged beside the base 13 in the width direction, and the cover 102 is sealingly connected to the base 13.

[0060] The cover 102 has an inlet passage 105 and an outlet passage 104. The fourth through hole 206 is in communication with the inlet passage 105, and the third through hole 205 is in communication with the outlet passage 104. The inlet passage 105 is in communication with the inner cavity of the barrel 101, the inner cavity of the barrel 101 is in communication with the inlet of the gas-liquid separation component 103, and the outlet of the gas-liquid separation component 103 is in communication with the outlet passage 104. After the fluid flows through the gas-liquid separator 10, the liquid refrigerant is stored in the inner cavity of the barrel 101, and the gaseous refrigerant flows out of the gas-liquid separator 10 from the outlet passage 104. The structure and working principle of the gas-liquid separator 10 are known to those skilled in the art, and will not be described here. The structure of the gas-liquid separation component 103 in the drawings is one possible embodiment, and other structures that can achieve the function of gas-liquid separation can also be used, and the present application is not limited. In some other embodiments, the barrel 101 is sealingly connected to the base 13, and part of the base 13 extends outward to realize the function of the cover 102. The fourth through hole 206 is the inlet passage 105, and the third through hole 205 is the outlet passage 104.

[0061] In some possible embodiments, referring to Figures 3 to 11The fluid management assembly 100 further comprises a multi-pass device 7, which comprises a main body 75 and a switching part 76 in sealing connection with the main body 75, and the switching part 76 is partially located in the inner cavity of the main body 75. The main body 75 has a first interface channel 71, a second interface channel 72, a third interface channel 73 and a fourth interface channel 74, which are respectively open at the circumferential side of the main body 75 and can be used for interfacing with other components. The multi-pass device 7 has a first state and a second state. In the first state, the first interface channel 71 is in communication with the second interface channel 72, and the third interface channel 73 is in communication or cut-off with the fourth interface channel 74. In the second state, the first interface channel 71 is in communication with the fourth interface channel 74, and the second interface channel 72 is in communication with the third interface channel 73. The switching between the first state and the second state is realized by the switching part 76. Optionally, the multi-pass device 7 is a four-way valve, and the structure and working principle of the four-way valve are well known to those skilled in the art, which will not be described herein. The internal structure of the four-way valve is not shown in the drawings.

[0062] The base 13 has a fifth through hole 207 extending along the width direction of the base 13, which is in communication with the groove cavity of the fourth recessed part 135 and the third interface channel 73. In some other embodiments, the multi-pass device 7 can not be provided with a separately formed main body 75, and the switching part 76 is installed on the base 13 in sealing connection with the mounting part. A part of the base 13 extends outward to realize the function of the main body 75.

[0063] Referring to Figure 3 In the embodiment, the multi-pass device 7 and the gas-liquid separator 10 are respectively located on the opposite sides of the base 13 in the width direction. Specifically, the multi-pass device 7 cooperates with the right side surface of the base 13, and the gas-liquid separator 10 cooperates with the left side surface of the base 13. The openings of the fourth through hole 206 and the fifth through hole 207 are located on the side wall of the fourth recessed part 135, and the groove cavity of the fourth recessed part 135 can be used for collecting fluid or distributing fluid. In other embodiments, the multi-pass device 7 can cooperate with the left side surface of the base 13, and the gas-liquid separator 10 can cooperate with the right side surface of the base 13, which is not limited in the present application.

[0064] In some possible embodiments, referring to Figure 6 , Figure 7 , Figure 9 and Figure 11 The base 13 further has a seventh through hole 208 extending along the length direction of the base 13, one opening of the seventh through hole 208 is located on the side wall of the fourth recessed part 135, and the other opening of the seventh through hole 208 is located on the bottom surface of the base 13. The seventh through hole 208 is in communication with the groove cavity of the fourth recessed part 135 and the outside of the fluid management assembly 100.

[0065] In summary, the plurality of through holes and the plurality of groove cavities of the base 13 form the first chamber and the second chamber which are not communicated with each other in the base 13. The first chamber includes the first through hole 201, the second through hole 202, the assembly through hole 203, the sixth through hole 204, the groove cavity of the first recessed portion 131, the groove cavity of the fifth recessed portion 132, and the groove cavity of the third recessed portion 134. The second chamber includes the third through hole 205, the fourth through hole 206, the fifth through hole 207, the seventh through hole 208, the groove cavity of the second recessed portion 133, and the groove cavity of the fourth recessed portion 135.

[0066] In some possible embodiments, referring to Figure 1 , Figure 2 , and Figures 12 to 17 , the fluid management assembly further includes a block portion 11, and the block portion 11 and the first heat exchanger 5 are installed together. In this embodiment, the block portion 11 is a hexahedral structure, referring to the placement direction of Figure 13 , the block portion 11 includes a top surface, a bottom surface, a left side surface, a right side surface, a front side surface, and a back side surface. The top surface and the bottom surface of the block portion 11 are respectively located on opposite sides in the height direction of the block portion 11, the left side surface and the right side surface of the block portion 11 are respectively located on opposite sides in the width direction of the block portion 11, and the front side surface and the back side surface of the block portion 11 are respectively located on opposite sides in the thickness direction of the block portion 11. The second surface 57 of the first heat exchanger 5 is sealingly connected to the back side surface of the block portion 11. In some other embodiments, the block portion 11 can also not be a hexahedral structure, as long as the connection between components can be achieved, which is not limited in the present application.

[0067] Referring to Figures 15 to 17The block portion 11 has a first hole 111, a second hole 112, a third hole 113, and a first mounting hole 117. The first hole 111 communicates with the second channel 53, and the second hole 112 communicates with the lumen of the communication pipe 12. The communication pipe 12 is fixedly connected to the block portion 11, and a part of the communication pipe 12 is located in the second hole 112. The pipe wall of the communication pipe 12 is sealingly connected to the hole wall forming the second hole 112. The first hole 111 penetrates the block portion 11 along the thickness direction of the block portion 11, and one opening of the first hole 111 is located on the front side of the block portion 11, and the other opening of the first hole 111 is located on the back side of the block portion 11. The second hole 112 extends along the thickness direction of the block portion 11, and the opening of the second hole 112 is located on the back side of the block portion 11. The third hole 113 extends along the width direction of the block portion 11, and the opening of the third hole 113 is located on the right side of the block portion 11. The first mounting hole 117 extends along the height direction of the block portion 11, and the opening of the first mounting hole 117 is located on the top surface of the block portion 11. The second hole 112 and the third hole 113 respectively communicate with the first mounting hole 117. The connection port of the second hole 112 and the first mounting hole 117 is defined as a third port, and the connection port of the third hole 113 and the first mounting hole 117 is defined as a fourth port. The height direction is the axial extension direction of the first mounting hole 117, and the heights of the third port and the fourth port are different. In this embodiment, the third port is farther away from the bottom surface of the block portion 11 than the fourth port.

[0068] The block portion 11 includes a groove portion 116, which is formed by inwardly recessing part of the back side of the block portion 11. The groove opening of the groove portion 116 faces the first heat exchanger 5, and in this embodiment, the edge of the groove opening of the groove portion 116 is sealingly connected to the second surface 57 of the first heat exchanger 5. In other words, the groove cavity of the groove portion 116 includes the space between the second surface 57 of the first heat exchanger 5, the side wall of the groove portion 116, and the bottom wall of the groove portion 116. In this embodiment, the opening of the first hole 111 on the back side of the block portion 11 and the opening of the second hole 112 on the back side of the block portion 11 are both located on the bottom wall of the groove portion 116. The first hole 111 communicates with the groove cavity of the groove portion 116, and the second hole 112 does not communicate with the groove cavity of the groove portion 116. A part of the communication pipe 12 is located in the groove cavity of the groove portion 116. It should be understood that before the communication pipe 12 is assembled with the block portion 11, the first hole 111 and the second hole 112 can communicate through the groove cavity of the groove portion 116, but after the communication pipe 12 is assembled with the block portion 11, the communication pipe 12 blocks the opening of the second hole 112 on the bottom wall of the groove portion 116. Therefore, in the entire fluid management assembly 100, the second hole 112 does not communicate with the groove cavity of the groove portion 116, and the second hole 112 and the first hole 111 are isolated from each other in the block portion 11.

[0069] The bottom wall of the groove portion 116 is substantially waist-shaped, and the openings of the first hole 111 on the rear side of the block portion 11 and the second hole 112 on the rear side of the block portion 11 are respectively located on both sides of the length direction of the bottom wall of the groove portion 116. In some other embodiments, the first heat exchanger 5 is mounted together with the block portion 11 through a connecting block, and the connecting block is provided with a third through hole corresponding to the groove portion 116 on the block portion 11, so that the third through hole is also part of the groove cavity of the groove portion 116, and the side wall forming the third through hole is also part of the side wall of the groove portion 116, and the slot of the groove portion 116 is located on the connecting block.

[0070] In this application, the block portion 11 is located on one side of the first heat exchanger 5 in the thickness direction, and the base portion 12 is located on the other side of the first heat exchanger 5 in the thickness direction. The second hole 53 is arranged corresponding to the opening of the second surface 57 and the slot of the groove portion 116, the second hole 53 communicates with the groove cavity of the groove portion 116, and the first hole 111 also communicates with the groove cavity of the groove portion 116, so as to realize the communication between the second hole 53 and the first hole 111. The communication pipe 12 is partially accommodated in the groove cavity of the groove portion 116 and partially accommodated in the second hole 112, and the communication pipe 12 is sealingly connected with the hole wall forming the second hole 112, so as to realize the communication between the lumen of the communication pipe 12 and the second hole 112. The first through hole 201, the sixth through hole 204, the lumen of the communication pipe 12 and the first hole 55 all communicate with the groove cavity of the first groove portion 131, and the mutual communication of the first through hole 201, the sixth through hole 204, the lumen of the communication pipe 12 and the first hole 55 can be realized through the groove cavity of the first groove portion 131. The lumen of the communication pipe 12 does not communicate with the second hole 53 in the first heat exchanger 5, and the first hole 111 does not communicate with the second hole 112 in the block portion 11, forming two flow paths that do not communicate with each other in the fluid management assembly 100. The communication pipe 12 is arranged in the second hole 53, and the part of the communication pipe 12 located in the second hole 53 does not contact the hole wall forming the second hole 53, which can shorten the length of the connecting pipeline between the components on the other side of the first heat exchanger 5 in the thickness direction and the block portion 11, but does not affect the communication between the second hole 53 and the first hole 111 of the block portion 11. The communication pipe 12 is at least partially located in the second hole 53, which reduces the occupied space of the fluid management assembly 100, makes the structure of the fluid management assembly 100 compact, and occupies small space.

[0071] In some possible embodiments, with reference to Figure 12 and Figure 15The fluid management assembly 100 further comprises a second valve 83, which is sealingly connected to the block portion 11. The second valve 83 is mounted on the top surface of the block portion 11 and partially located in the first mounting hole 117. The second valve 83 controls the communication or cutoff of the second hole 112 and the third hole 113. Optionally, the second valve 83 is an electronic expansion valve. The second valve 83 has a communication state, a cutoff state and a throttling state. The structure and working principle of the electronic expansion valve are well known to those skilled in the art and will not be described herein. The spool structure of the electronic expansion valve is not shown in the drawings.

[0072] The block portion 11 further has a fourth hole 114, a fifth hole 115 and a second mounting hole 118. The fourth hole 114 is substantially T-shaped. The fifth hole 115 is substantially L-shaped. The fourth hole 114 includes a hole channel extending along the width direction of the block portion 11 and a hole channel extending along the height direction of the block portion 11. The two hole channels are in communication with each other. The opening of the hole channel extending along the width direction of the block portion 11 is located on the left side surface of the block portion 11. The opening of the hole channel extending along the height direction of the block portion 11 is located on the top surface of the block portion 11. The fifth hole 115 includes a hole channel extending along the thickness direction of the block portion 11 and a hole channel extending along the height direction of the block portion 11. The two hole channels are in communication with each other. The opening of the hole channel extending along the thickness direction of the block portion 11 is located on the back surface of the block portion 11. The opening of the hole channel extending along the height direction of the block portion 11 is located on the top surface of the block portion 11. The second mounting hole 118 extends along the width direction of the block portion 11. The second mounting hole 118 is substantially parallel to the third hole 113. The fourth hole 114 is in communication with the second mounting hole 118.

[0073] In some possible embodiments, with reference to Figure 11 and Figure 17The fluid management assembly 100 further comprises a drying device 9, which is mounted with the block portion 11 and is arranged along the width direction of the block portion 11. In the embodiment, the drying device 9 comprises a cavity portion 91, a cover portion 92 and a drying component (not shown in the figure), the drying component is located in the inner cavity of the cavity portion 91, the cover portion 92 is arranged at one end of the cavity portion 91 in the length direction, the cavity portion 91 and the cover portion 92 are sealingly connected, the other end of the cavity portion 91 away from the cover portion 92 is sealingly arranged, and the end of the cover portion 92 away from the cavity portion 91 is fixedly connected with the block portion 11. The cover portion 92 has two through holes respectively communicating with the inner cavity of the cavity portion 91, one of the through holes communicates with the fourth hole 114, and the other of the through holes communicates with the fifth hole 115, one of the two through holes serves as the inlet of the drying device 9, and the other of the two through holes serves as the outlet of the drying device 9. After the fluid flows through the drying device 9, the fluid can be dried and part of impurities can be filtered out. The fifth hole 115 is arranged opposite to the opening of the fourth hole 54 on the second surface 57, and the fifth hole 115 communicates with the fourth hole 54 of the first heat exchanger 5. In some other embodiments, the cover portion 92 and the block portion 11 are an integral structure, the cavity portion 91 is directly sealingly connected with the block portion 11, the block portion 11 realizes the function of the cover portion 92, the fourth hole 114 and the fifth hole 115 respectively directly communicate with the inner cavity of the cavity portion 91, one of the fourth hole 114 and the fifth hole 115 serves as the inlet of the drying device 9, and the other of the fourth hole 114 and the fifth hole 115 serves as the outlet of the drying device 9.

[0074] In some possible embodiments, referring to Figure 11 and Figure 17 The fluid management assembly 100 further comprises a third valve 84, at least part of the third valve 84 is located in the second mounting hole 118, and the third valve 84 controls the third hole 113 and the fourth hole 114 to communicate or be cut off. The third hole 113 and the fourth hole 114 respectively communicate with the second mounting hole 118, the connection port of the third hole 113 and the second mounting hole 118 is defined as a fifth port, the connection port of the fourth hole 114 and the second mounting hole 118 is defined as a sixth port, the height direction is defined as the axial extension direction of the second mounting hole 118, and the fifth port and the sixth port are different in height.

[0075] In this embodiment, the third valve member 84 is a one-way valve, and the third valve member 84 is entirely located in the second mounting hole 118. Specifically, the third valve member 84 includes a blocking portion 841, an elastic portion 842, and a limiting portion 843, the limiting portion 843 is in limiting connection with the hole wall forming the second mounting hole 118, thereby limiting the displacement of the limiting portion 843 in the axial direction of the first mounting hole 117, one end of the elastic portion 842 is connected with the limiting portion 843, and the other end of the elastic portion 842 is connected with the blocking portion 841, and the blocking portion 841 can move in the axial direction of the first mounting hole 117. When the pressure of the fluid in the third hole 113 is greater than the pressure of the fluid in the fourth hole 114, the elastic portion 842 is compressed, the blocking portion 841 is spaced apart from the hole wall forming the second mounting hole 118, and the third hole 113 is in communication with the fourth hole 114; when the pressure of the fluid in the third hole 113 is less than the pressure of the fluid in the fourth hole 114, the elastic portion 842 rebounds, the periphery of the blocking portion 841 is circumferentially sealed with the hole wall forming the second mounting hole 118, and the third hole 113 is not in communication with the fourth hole 114. In some other embodiments, the third valve member 84 is a stop valve or an electronic expansion valve, and the third valve member 84 is partially located in the second mounting hole 118. According to the communication requirement of the system, when the third hole 113 needs to be in communication with the fourth hole 114, the control valve core opens the valve port, so that the third hole 113 is in communication with the fifth hole 115; when the third hole 113 needs to be cut off, the control valve core closes the valve port, so that the third hole 113 is cut off from the fifth hole 115.

[0076] With reference to Figure 12The block portion 11, the drying device 9 and the second valve 83 in the embodiment are located on the same side of the thickness direction of the first heat exchanger 5, the second valve 83 and the drying device 9 are located on the same side of the height direction of the block portion 11, and the communication pipe 12 has a part located in the second hole channel 53 and another part located in the second hole 112. The arrangement of the components is compact, and the size along the thickness direction of the first heat exchanger 5 and the size along the width direction of the block portion 11 are as small as possible, so that the structure of the fluid management assembly 100 is compact and occupies a small space. In addition, the block portion 11, the drying device 9, the second valve 83, the third valve 84, the first heat exchanger 5 and the communication pipe 12 are installed together, the second hole channel 53 is in communication with the first hole 111, the lumen of the communication pipe 12 is in communication with the second hole 112, the inner cavity of the drying device 9 is in communication with the fourth hole channel 54 and the fourth hole 114, the second valve 83 is arranged between the second hole 112 and the third hole 113, the third valve 84 is arranged between the third hole 113 and the fourth hole 114, the communication and cutoff between the components are realized through the design of the internal passage of the block portion 11, the system pipeline is simplified, the pipeline length of the system is shortened, and the flow resistance can be reduced. The first hole 111, the third hole 113 and the fourth hole 114 are arranged on the block portion 11 and are in communication with the outside, respectively face different directions of the block portion 11, the fluid management assembly 100 is convenient to connect with other components, the external space is reasonably utilized, the system pipeline is simplified, and the system is beneficial to miniaturization.

[0077] In some possible embodiments, referring to Figure 1 and Figure 2 , the fluid management assembly 100 further comprises a compressor 1 and a connecting pipeline 14, one end of the connecting pipeline 14 is in sealing connection with the block portion 11, and the other end of the connecting pipeline 14 is in sealing connection with the compressor 1. The connecting pipeline 14 blocks the opening of the first hole 111 located on the front side surface of the block portion 11, and the lumen of the connecting pipeline 14 is in communication with the first hole 111 of the block portion 11 and the inlet of the compressor 1. The compressor 1 is in sealing connection with the multi-way device 7, the shell of the compressor 1 is fixedly connected with the main body portion of the multi-way device 7, and the outlet of the compressor 1 is in communication with the first interface channel 71 of the multi-way device 7. The structure and working principle of the compressor 1 are known to those skilled in the art, and will not be described herein.

[0078] The fluid management assembly 100 in the above embodiment can be applied to a thermal management system, such as a vehicle thermal management system, a household thermal management system or a commercial thermal management system.

[0079] In the embodiment, the structure of the fluid management assembly 100 is taken as an example, as shown in Figure 1 , such as Figure 18 and Figure 19As shown, the various components of the thermal management system are connected by pipes to form two systems, namely a refrigerant system and a coolant system 300, which are isolated from each other. The refrigerant system circulates refrigerant, and the coolant system 300 circulates coolant. The refrigerant can be R134A or carbon dioxide or other heat exchange medium, and the coolant can be a mixture of ethanol and water or other cooling medium. The refrigerant system includes an indoor condenser 2, an indoor evaporator 3, an outdoor heat exchanger 4, a fourth valve 81, a fifth valve 85, and a fluid management assembly 100. The above components can be indirectly connected by pipes or valves, or integrated into an integral structure. The coolant system 300 includes a motor, a battery, a power component, and a low-temperature water tank, which can achieve thermal management of the motor, the battery, and the power component. The waste heat of the motor, the battery, and the power component can be discharged to the atmosphere or recovered to the refrigerant system. According to the system requirements, the connection state of the coolant system 300 is switched. The coolant system 300 has multiple connection modes, and the specific structure of the coolant system 300 is not shown in this application.

[0080] In this embodiment, the first heat exchanger 5 and the second heat exchanger 6 are both plate heat exchangers. The first heat exchanger 5 includes a first heat exchange part 51 and a second heat exchange part 52, both of which are provided with flow channels. The flow channels of the first heat exchange part 51 and the second heat exchange part 52 are isolated from each other in the first heat exchanger 5, and the fluid in the first heat exchange part 51 and the fluid in the second heat exchange part 52 can exchange heat. The refrigerant in a certain section of the refrigerant system can exchange heat with the refrigerant in another section of the same circuit through the first heat exchanger 5. The flow channel of the first heat exchange part 51 includes a first hole 55, a fourth hole 54, and a first flow channel. The flow channel of the second heat exchange part 52 includes a second hole 53, a third hole 56, and a second flow channel.

[0081] The second heat exchanger 6 includes a third heat exchange part 61 and a fourth heat exchange part 62, both of which are provided with flow channels. The flow channels of the third heat exchange part 61 and the fourth heat exchange part 62 are isolated from each other, and the fluid in the third heat exchange part 61 and the fluid in the fourth heat exchange part 62 can exchange heat. The refrigerant in the refrigerant system can exchange heat with the coolant in the coolant system 300 through the second heat exchanger 6. The flow channel of the third heat exchange part 61 includes a fifth hole 63, a sixth hole 64, and a third flow channel. The flow channel of the fourth heat exchange part 62 includes a seventh hole 65, an eighth hole 66, and a fourth flow channel.

[0082] In the refrigerant system, the first port of the outdoor heat exchanger 4 is in communication with the second interface channel 72, and the second port of the outdoor heat exchanger 4 is in communication with the third hole 113 of the fluid management assembly 100. The first port of the indoor condenser 2 is in communication with the fourth interface channel 74, and the second port of the indoor condenser 2 is in communication with the first port of the fifth valve 85, and the second port of the fifth valve 85 is in communication with the fourth hole 114. The fifth valve 85 controls the communication or cutoff of the second port of the indoor condenser 2 and the fourth hole 114, and the fifth valve 85 is optionally a one-way valve, a cutoff valve, or an electronic expansion valve. The outlet of the fourth valve 81 is in communication with the inlet of the indoor evaporator 3, the inlet of the fourth valve 81 is in communication with the sixth through hole 204 of the fluid management assembly 100, and the outlet of the indoor evaporator 3 is in communication with the seventh through hole 208 of the base 13. Optionally, the fourth valve 81 is an electronic expansion valve, and the fourth valve 81 has a throttling state and a cutoff state. In some possible embodiments, the fifth valve 85 and the block body 11 can be installed together, and the fourth valve 81 and the base 13 can be installed together, further improving the integration of the thermal management system.

[0083] The thermal management system provided by the embodiments of the present application can be applied to an electric vehicle. The electric vehicle has an air conditioning box 200 for heat exchange with air in a passenger cabin. The indoor condenser 2 and the indoor evaporator 3 are arranged in the air conditioning box 200, and are used for heat exchange with air in the air conditioning box 200 to adjust the temperature of the passenger cabin. The indoor condenser 2 is located on the downstream side of the air flow relative to the indoor evaporator 3. The air conditioning box 200 is provided with a fan and an air door. The fan is used to guide the flow of air in the air conditioning box 200, and the air door is used to control the amount of air flowing through the indoor condenser 2. In the refrigeration mode, the air door is closed, and the indoor condenser 2 does not participate in heat exchange. The outdoor heat exchanger 4 and the low-temperature water tank are arranged near the front air grille of the vehicle. The outdoor heat exchanger 4 and the low-temperature water tank are used for heat exchange with the atmosphere, and are used to release or absorb heat from the atmosphere. A fan device is arranged to guide the flow of air. The indoor condenser 2, the indoor evaporator 3, the outdoor heat exchanger 4, and the low-temperature water tank are all air-cooled heat exchangers, and are all used for heat exchange with air. The structure of the air-cooled heat exchanger is well known to those skilled in the art, and will not be described herein.

[0084] The thermal management system of the embodiments has multiple working modes, including a heating mode and a refrigeration mode. In the embodiments, Figure 18 for an embodiment of the refrigeration mode of the thermal management system, Figure 19 for an embodiment of the heating mode of the thermal management system, the thick solid line in the figure indicates that the refrigerant circulates, the arrow indicates the flow direction of the refrigerant, and the gray dashed line indicates that the refrigerant does not circulate. The thermal management system of the embodiments is not only suitable for vehicles, but also suitable for other heat exchange systems that need heat management. For ease of description, the description of the present application is described by taking application to a vehicle as an example.

[0085] Referring to Figure 18 In the cooling mode, the fourth valve 81 and the first valve 82 are throttled, the second valve 83 and the fifth valve 85 are closed, the third valve 84 is conducted, the first port passage 71 and the second port passage 72 are communicated, and the third port passage 73 and the fourth port passage 74 are closed when the multi-pass device 7 is in the first state. The outlet of the compressor 1, the multi-pass device 7, the outdoor heat exchanger 4, the third valve 84, the drying device 9, the first heat exchange part 51, the fourth valve 81, the indoor evaporator 3, the gas-liquid separator 10, the second heat exchange part 52, and the inlet of the compressor 1 are sequentially communicated, and the outlet of the compressor 1, the multi-pass device 7, the outdoor heat exchanger 4, the third valve 84, the drying device 9, the first heat exchange part 51, the first valve 82, the third heat exchange part 61, the gas-liquid separator 10, the second heat exchange part 52, and the inlet of the compressor 1 are sequentially communicated, and the two refrigerants exchange heat in the first heat exchanger 5, and the refrigerant and the cooling liquid exchange heat through the second heat exchanger 6.

[0086] Specifically, in the fluid management assembly 100, the refrigerant from the compressor 1 flows from the first interface channel 71 to the second interface channel 72, and then flows out of the fluid management assembly 100 from the second interface channel 72. The refrigerant flowing out of the second interface channel 72 flows through the outdoor heat exchanger 4, releases heat to the atmosphere at the outdoor heat exchanger 4, and the temperature of the refrigerant is lowered, and then enters the fluid management assembly 100 again from the third hole 113. At this time, the second valve 83 and the fifth valve 85 are closed, and the third valve 84 is open. Inside the fluid management assembly 100, the refrigerant flows through the third hole 113, the second mounting hole 118, the fourth hole 114, the drying device 9, the fifth hole 115, the fourth channel 54, the first flow channel, and the first channel 55 in sequence. The refrigerant flowing out of the first channel 55 is divided into two paths through the groove cavities of the first groove part 131 and the fifth groove part 132. One path flows out of the fluid management assembly 100 from the sixth through hole 204, and then flows to the fourth valve 81. The refrigerant throttled by the fourth valve 81 flows into the indoor evaporator 3, and the passenger compartment refrigeration is achieved. The refrigerant flowing out of the indoor evaporator 3 flows into the fluid management assembly 100 again from the seventh through hole 208. The other path flows to the first valve 82 through the first through hole 201. The refrigerant throttled by the first valve 82 flows through the second through hole 202, the groove cavity of the third groove part 134, the fifth channel 63, the third flow channel, and the sixth channel 64 in sequence. In the second heat exchanger 6, the refrigerant in the third heat exchange part 61 exchanges heat with the cooling liquid in the fourth heat exchange part 62, and the cooling of the cooling liquid is achieved, which can be used for cooling the battery or the motor. The refrigerant flowing in from the seventh through hole 208 and the refrigerant flowing out of the sixth channel 64 are merged through the groove cavity of the fourth groove part 135, and then flow into the gas-liquid separator 10 from the fourth through hole 206. After gas-liquid separation, the liquid refrigerant is stored in the gas-liquid separator 10, and the gaseous refrigerant flows out of the gas-liquid separator 10. The refrigerant flowing out of the gas-liquid separator 10 flows through the third through hole 205, the groove cavity of the second groove part 133, the third channel 56, the second flow channel, the second channel 53, the groove cavity of the groove part 116, and the first hole 111 in sequence. The refrigerant flowing out of the first hole 111 flows to the inlet of the compressor 1 through the pipe cavity of the connecting pipeline 14. The compressor 1 re-compresses the refrigerant, and the cycle continues. In the first heat exchanger 5, the high-temperature refrigerant in the first heat exchange part 51 exchanges heat with the low-temperature refrigerant in the second heat exchange part 52, thereby improving the system performance.

[0087] It should be understood that when the fifth valve 85 is a one-way valve, although there is refrigerant flowing on both sides of the fifth valve 85, the high-pressure refrigerant before throttling flows in the fourth hole 114, and the low-pressure refrigerant after throttling flows in the groove cavity of the fourth groove part 135. Due to the pressure difference, the fifth valve 85 will not be open, and there will be no cross-flow phenomenon. When the fifth valve 85 is a stop valve or an electronic expansion valve, the fifth valve 85 is in a closed state.

[0088] In other refrigeration modes, the first valve 82 is closed, the heat exchange between the refrigerant and the coolant liquid is not realized, and only the refrigeration of the passenger compartment is realized. Alternatively, the fourth valve 81 is closed, the heat exchange at the passenger compartment is not realized, and only the cooling of the coolant liquid is realized, which can be used for the cooling of the motor or the battery.

[0089] Referring to Figure 19 In the heating mode, the third valve 84 and the fourth valve 81 are closed, the fifth valve 85 is turned on, the second valve 83 and the first valve 82 are throttled, the first interface channel 71 and the fourth interface channel 74 are communicated, and the second interface channel 72 and the third interface channel 73 are communicated when the multi-way device 7 is in the second state. The outlet of the compressor 1, the multi-way device 7, the indoor condenser 2, the fifth valve 85, the drying device 9, the first heat exchange part 51, the second valve 83, the outdoor heat exchanger 4, the multi-way device 7, the gas-liquid separator 10, the second heat exchange part 52, and the inlet of the compressor 1 are sequentially communicated, and the outlet of the compressor 1, the multi-way device 7, the indoor condenser 2, the fifth valve 85, the drying device 9, the first heat exchange part 51, the first valve 82, the third heat exchange part 61, the multi-way device 7, the gas-liquid separator 10, the second heat exchange part 52, and the inlet of the compressor 1 are sequentially communicated.

[0090] Specifically, in the fluid management assembly 100, the refrigerant from the compressor 1 flows from the first interface channel 71 to the fourth interface channel 74, and then flows out of the fluid management assembly 100 from the fourth interface channel 74. The refrigerant flowing out of the fourth interface channel 74 flows through the indoor condenser 2, exchanges heat with the cabin air at the indoor condenser 2, realizes cabin heating, and then enters the fluid management assembly 100 again from the fourth hole 114. At this time, the second valve 83 throttles, the third valve 84 is cut off, and the fifth valve 85 is turned on. Inside the fluid management assembly 100, the refrigerant flows through the fourth hole 114, the drying device 9, the fifth hole 115, the fourth hole channel 54, the first flow channel, and the first hole channel 55 in turn. The refrigerant flowing out of the first hole channel 55 is divided into two paths through the first groove part 131 and the fifth groove part 132. One path of the refrigerant flows to the communication pipe 12, then enters the second hole 112, throttles through the second valve 83, and then flows out of the fluid management assembly 100 from the third hole 113. The refrigerant flowing out of the third hole 113 flows through the outdoor heat exchanger 4, absorbs heat from the atmospheric environment at the outdoor heat exchanger 4, and then enters the fluid management assembly 100 again from the second interface channel 72. In the fluid management assembly 100, the refrigerant flows from the second interface channel 72 to the third interface channel 73, and then flows into the groove cavity of the fourth groove part 135 from the fifth through-hole 207. The other path of the refrigerant flows to the first valve 82 through the first through-hole 201, throttles through the first valve 82, and then flows into the groove cavity of the fourth groove part 135 through the second through-hole 202, the groove cavity of the third groove part 134, the fifth hole channel 63, the third flow channel, and the sixth hole channel 64 in turn. In the second heat exchanger 6, the refrigerant in the third heat exchange part 61 exchanges heat with the cooling liquid in the fourth heat exchange part 62, and the refrigerant obtains heat from the cooling liquid, which can be used for waste heat recovery of the battery and / or the motor. The refrigerant flowing in from the fifth through-hole 207 and the refrigerant flowing in from the sixth hole channel 64 converge in the groove cavity of the fourth groove part 135, and then flow into the gas-liquid separator 10 from the fourth through-hole 206. After gas-liquid separation, the liquid refrigerant is stored in the gas-liquid separator 10, and the gaseous refrigerant flows out of the gas-liquid separator 10. The refrigerant flowing out of the gas-liquid separator 10 flows through the third through-hole 205, the groove cavity of the second groove part 133, the third hole channel 56, the second flow channel, the second hole channel 53, the groove cavity of the slot part 116, and the first hole 111 in turn, and then flows out of the first hole 111 to the inlet of the compressor 1 through the pipe cavity of the connecting pipe 14. The compressor 1 re-compresses the refrigerant, and the cycle continues. In the first heat exchanger 5, the high-temperature refrigerant in the first heat exchange part 51 exchanges heat with the low-temperature refrigerant in the second heat exchange part 52, thereby improving system performance.

[0091] It should be understood that although the two sides of the third valve 84 have refrigerant flowing, the fourth hole 114 flows high-pressure refrigerant before throttling, and the third hole 113 flows low-pressure refrigerant after throttling. Due to the pressure difference, the second mounting hole 118 is not in communication with the third hole 113, and there is no cross-flow phenomenon.

[0092] In other heating modes, the first valve 82 is closed, the refrigerant has no heat exchange with the coolant, and only absorbs heat from the atmosphere. Alternatively, the second valve 83 is closed, there is no heat exchange at the outdoor heat exchanger 4, and heat is obtained from the coolant, which can achieve waste heat recovery of the motor and / or battery. Alternatively, the fourth valve 81 throttles, and the refrigerant flowing out of the first hole 55 is divided into three paths. In addition to the two paths of refrigerant described above, a path of refrigerant flows out of the sixth through hole 204 of the fluid management assembly 100, then throttles through the fourth valve 81, and then flows into the indoor evaporator 3 to achieve passenger cabin heating and dehumidification. The refrigerant flowing out of the indoor evaporator 3 flows into the groove cavity of the fourth groove part 135 through the seventh through hole 208, and then converges with the other two paths of refrigerant, and then flows into the gas-liquid separator 10.

[0093] As described above, the present application integrates most of the components in the thermal management system into the fluid management assembly 100, and arranges the components compactly. Specifically, the multi-pass device 7 and the gas-liquid separator 10 are respectively located on opposite sides in the width direction of the base 13, the first heat exchanger 5 and the second heat exchanger 6 are respectively located on opposite sides in the thickness direction of the base 13, the base 13 and the block part 11 are respectively located on opposite sides in the thickness direction of the first heat exchanger 5, the block part 11 is arranged relatively lower, the drying device 9 and the second valve 83 are located on the same side in the height direction of the block part 11, the openings of the sixth through hole 204 and the seventh through hole 208 are respectively arranged on opposite sides in the length direction of the base 13, the components are distributed around each other, the circumferential space of each component is reasonably utilized, the communication between the inner cavities of each component is achieved through the base 13 and the block part 11, the components are close to each other, the system pipeline is omitted or shortened, the flow resistance is reduced, and the thermal management system is miniaturized.

[0094] In the present application, the "connection" between two components can be direct connection or connection through a pipeline. The two components can only have a pipeline therebetween, or can have a valve or other component therebetween in addition to the pipeline. Similarly, the "communication" between two components in the present application can be direct communication or communication through a pipeline. The two components can only have a pipeline therebetween, or can have a valve or other component therebetween in addition to the pipeline. The "heights of the two through holes / holes / hole channels are the same" means that the central axes of the through holes / holes / hole channels are the same. In the present application, the exterior of the fluid management assembly 100 is mentioned several times. The multiple exteriors can refer to the same space or different spaces, which is determined according to the design of the system.

[0095] The above description is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present application, which does not depart from the content of the technical solution of the present application, still belongs to the scope of the technical solution of the present application.

Claims

1. A fluid management component, characterized in that, include: A first heat exchanger, a second heat exchanger, and a base, wherein the base includes a first side and a second side, the first side and the second side being located on opposite sides in the thickness direction of the base, the first heat exchanger being sealed to the first side, and the second heat exchanger being sealed to the second side. The base has a first chamber and a second chamber, which are isolated from each other within the base; the first heat exchanger has a first flow channel and a second flow channel, which are not interconnected within the first heat exchanger; the first chamber is connected to the first flow channel, and the second chamber is connected to the second flow channel; the second heat exchanger has a third flow channel, with the first chamber connected to one side of the third flow channel and the second chamber connected to the other side of the third flow channel. The base includes a first groove and a second groove. The openings of the first groove and the second groove are both located on the first side. There is a gap between the bottom wall of the first groove and the first heat exchanger, and there is a gap between the bottom wall of the second groove and the first heat exchanger. The first chamber includes the cavity of the first groove, and the first flow channel communicates with the cavity of the first groove. The second chamber includes the cavity of the second groove, and the second flow channel communicates with the cavity of the second groove.

2. The fluid management component as claimed in claim 1, characterized in that, The first chamber includes a first through hole, a second through hole, and an assembly through hole. The first through hole communicates with the first flow channel, the second through hole communicates with the third flow channel, and the first through hole and the second through hole are respectively connected to the assembly through hole. The fluid management assembly further includes a first valve, which is sealed to the base. A portion of the first valve is located in the assembly through hole, and the first valve controls the connection and disconnection between the first through hole and the second through hole.

3. The fluid management component as described in claim 2, characterized in that, The second chamber includes a third through hole and a fourth through hole, the third through hole and the fourth through hole being isolated from each other within the base, the third through hole communicating with the second flow channel, and the fourth through hole communicating with the third flow channel; The fluid management assembly further includes a cylinder and a gas-liquid separation component. The cylinder is connected to the base. At least a portion of the gas-liquid separation component is located within the inner cavity of the cylinder. The fourth through hole communicates with the inner cavity of the cylinder. The inner cavity of the cylinder communicates with the inlet of the gas-liquid separation component. The outlet of the gas-liquid separation component communicates with the third through hole.

4. The fluid management component as claimed in claim 3, characterized in that, The first through hole, the assembly through hole, and the second through hole are arranged sequentially along the thickness direction of the base, and the third through hole and the fourth through hole are arranged along the thickness direction of the base; The length direction of the base is defined as the height direction. The third through hole and the fourth through hole have the same height. In the length direction of the base, the first through hole, the second through hole and the assembly through hole are located on the same side of the third through hole. The height of the first through hole is different from the height of the third through hole, the height of the second through hole is different from the height of the third through hole, and the height of the assembly through hole is different from the height of the third through hole.

5. The fluid management component as described in claim 1 or 2, characterized in that, The first heat exchanger is in a concave-convex fit with the base.

6. The fluid management component as claimed in claim 3, characterized in that, The second heat exchanger is in a concave-convex fit with the base; The base includes a third groove and a fourth groove. The openings of the third and fourth grooves are both located on the second side. There is a gap between the bottom wall of the third groove and the second heat exchanger, and there is a gap between the bottom wall of the fourth groove and the second heat exchanger. The first chamber includes the cavity of the third groove, and the second chamber includes the cavity of the fourth groove. One side of the third flow channel and the second through hole are respectively connected to the cavity of the third groove, and the other side of the third flow channel and the fourth through hole are respectively connected to the cavity of the fourth groove.

7. The fluid management component as claimed in claim 3, characterized in that, The fluid management component also includes a multi-port device, which includes a main body and a switching part. The main body is connected to the base or is an integral structure. A portion of the switching part is located in the inner cavity of the main body, and the switching part is sealed to the main body. The main body has a first interface channel, a second interface channel, a third interface channel, and a fourth interface channel. The third interface channel is connected to the second chamber. The multi-channel device has a first state and a second state. When the multi-channel device is in the first state, the first interface channel is connected to the second interface channel, and the third interface channel is connected to the fourth interface channel. When the multi-channel device is in the second state, the first interface channel is connected to the fourth interface channel, and the third interface channel is connected to the second interface channel. The reversing unit controls the multi-channel device to be in the first state or the second state.

8. The fluid management component as claimed in claim 7, characterized in that, The base includes a fourth groove, the opening of which is located on the second side, and the bottom wall of the fourth groove has a gap with the second heat exchanger; The second chamber includes a fifth through hole and a groove cavity of the fourth recessed portion. The fifth through hole is connected to the third interface channel, and the fourth through hole, the fifth through hole, and the third flow channel are respectively connected to the groove cavity of the fourth recessed portion.

9. The fluid management component as claimed in claim 5, characterized in that, The fluid management component further includes a connecting pipe that extends through the first heat exchanger along its thickness direction. The lumen of the connecting pipe is not connected to either the first flow channel or the second flow channel within the first heat exchanger. The first heat exchanger has a receiving channel that extends through the first heat exchanger along its thickness direction. A portion of the connecting pipe is located within the receiving channel. The lumen of the connecting pipe is not connected to the receiving channel within the first heat exchanger. The lumen of the connecting pipe is connected to the groove cavity of the first groove portion.

10. A thermal management system, characterized in that, The device includes an outdoor heat exchanger and a fluid management component as described in any one of claims 1-9, the fluid management component having a first interface and a second interface, the first flow channel connecting the first interface and the first chamber, the second flow channel connecting the second chamber and the second interface, the first interface being connected to one interface of the outdoor heat exchanger, and the second interface being connected to another interface of the outdoor heat exchanger.

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