Thermal management system

Abstract

A thermal management system includes a coolant system including a first valve structure, a plurality of fluid branches and an internal branch, the first valve structure including an internal communication port and a plurality of valve ports, in the thermal management system, the internal communication port is communicated with the internal communication port through the internal branch, and the internal communication port is communicated with the internal branch through the internal branch. Each fluid branch comprises at least one heat exchanger, each valve port communicates with the fluid branch, and in any working mode of the thermal management system, the internal communicating port can communicate with at least two valve ports; therefore, the thermal management system is simplified.

Description

Technical Field

[0001] The present invention relates to the field of fluid management, and in particular to a thermal management system. Background Art

[0002] With the development of vehicles, the thermal management system requires more and more temperature management modes, and the design requirements for components and thermal management systems are becoming higher and higher. Summary of the Invention

[0003] An object of the present invention is to provide a thermal management system, which is conducive to simplifying the thermal management system.

[0004] On the one hand, an embodiment of the present invention provides a thermal management system, which includes a coolant system, the coolant system including a first valve structure, multiple fluid branches and an internal branch, the first valve structure including an internal connecting port and multiple valve ports, in the thermal management system, the internal connecting port is connected to the internal connecting port through the internal branch, each of the fluid branches includes at least one heat exchanger, and each of the valve ports is connected to the fluid branch, and in any working mode of the thermal management system, the internal connecting port can be connected to at least two of the valve ports.

[0005] According to the thermal management system provided by an embodiment of the present invention, the first valve structure is provided with an internal connecting port and multiple valve ports, and the internal connecting port is connected with the internal connecting port by setting an internal branch. In any working mode of the thermal management system, the internal connecting port can be connected with at least two valve ports, thereby enabling the internal connecting port to be connected with the corresponding fluid branch through the valve port. Compared with setting a complex valve structure to realize multiple connection relationships between corresponding valve ports, the thermal management system in the embodiment of the present invention has a simple structure.

[0006] On the other hand, an embodiment of the present invention also provides a thermal management system, which includes a coolant system, the coolant system including a first valve structure, multiple fluid branches and a second valve structure, the fluid branches including a first branch capable of exchanging heat with a power battery pack, a second branch capable of exchanging heat with a drive motor group, a third branch capable of exchanging heat with a passenger cabin, a fourth branch capable of exchanging heat with the external environment and a fifth branch capable of exchanging heat with the passenger cabin, the first valve structure has at least six valve ports, and the second valve structure has at least six connecting ports; the first branch, the third branch, the fourth branch and the fifth branch are all connected between the valve port and the connecting port, and the second branch is connected between two of the valve ports.

[0007] According to the thermal management system provided by an embodiment of the present invention, a first valve structure is provided with at least six valve ports, and a second valve structure is provided with at least six connecting ports, which are used to connect with five branches of different heat sources to be exchanged through the above-mentioned valve ports and connecting ports, thereby reducing the number of valve structures in the thermal management system, making the system connection relatively simple, and simplifying the thermal management system. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic block diagram of partial connections of a thermal management system provided by an embodiment of the present invention;

[0009] Figure 2 is a schematic block diagram of the connections of a thermal management system provided by another embodiment of the present invention;

[0010] Figure 3 yes Figure 1 A schematic block diagram of a connection of a first branch shown in FIG;

[0011] Figure 4 yes Figure 1 A schematic block diagram of a connection of a third branch shown in FIG;

[0012] Figure 5 yes Figure 1 A schematic block diagram of a fourth branch connection shown in FIG;

[0013] Figure 6 yes Figure 1 A schematic block diagram of a connection of a fifth branch shown in FIG;

[0014] Figure 7 yes Figure 1 A schematic block diagram of the connections of a thermal management system in a first operating mode is shown in FIG.

[0015] Figure 8 yes Figure 1 A schematic block diagram of a thermal management system in a second operating mode is shown;

[0016] Figure 9 yes Figure 1 A schematic block diagram of the connection of a thermal management system in a third operating mode is shown;

[0017] Figure 10 yes Figure 1 A schematic block diagram of the connection of a thermal management system in a fourth operating mode is shown;

[0018] Figure 11 yes Figure 1 A schematic block diagram of a thermal management system in a fifth operating mode is shown;

[0019] Figure 12 yes Figure 1A schematic block diagram of the connection of a thermal management system in a sixth operating mode is shown;

[0020] Figure 13 is a schematic diagram of the three-dimensional structure of a thermal management device provided by an embodiment of the present invention at a first angle;

[0021] Figure 14 is a schematic diagram of the three-dimensional structure of a thermal management device provided by an embodiment of the present invention at a second angle;

[0022] Figure 15 It is a schematic diagram of the three-dimensional structure of a thermal management device provided by an embodiment of the present invention at a third angle. DETAILED DESCRIPTION

[0023] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. As used herein, relational terms such as "first" and "second" are merely used to distinguish one component from another having the same name, and do not necessarily require or imply any actual relationship or order between these components.

[0024] like Figures 1 to 5 As shown, an embodiment of the present invention provides a thermal management system 1. The thermal management device provided by the embodiment of the present invention can be applied to the thermal management system 1. The thermal management system 1 can be a vehicle thermal management system 1, such as a new energy vehicle thermal management system 1.

[0025] As the functional requirements of the thermal management system 1 increase, the number of structural parts that need to exchange heat and the heat exchange modes that need to be met gradually increase. For example, in new energy vehicles, the passenger compartment needs to be heated or cooled. In some cases, the drive motor group also needs to be heated or cooled. At the same time, during the operation of the thermal management system 1, reducing the energy consumption of the thermal management system 1 is also a technical problem that needs to be solved urgently.

[0026] To solve the above problems, an embodiment of the present invention provides a thermal management system 1, which includes a coolant system 1000 and a refrigerant system 2000. The coolant system 1000 includes multiple heat exchangers, which can exchange heat with heat-exchanging elements. The fluid in the coolant system 1000 and the fluid in the refrigerant system 2000 can exchange heat, so that the fluid in the coolant system 1000 can exchange heat with the elements to be exchanged in each branch.

[0027] like Figure 1 and Figure 2As shown, the thermal management system 1 includes a coolant system 1000, which includes a first valve structure 100, multiple fluid branches 50, and an internal branch 570. The first valve structure 100 has an internal communication port 120 and multiple valve ports 110. For example, the first valve structure 100 has at least seven valve ports 110. In the thermal management system 1, the internal communication port 120 is connected to the internal communication port itself through the internal branch 570. At this time, the internal communication port 120 is not connected to the outside world through the internal branch 570. Each fluid branch 50 includes at least one heat exchanger 80, which can exchange heat with the element to be heat exchanged or the environment. Each valve port 110 is connected to the fluid branch 50. The first valve structure 100 has a first valve core structure. In any operating mode of the thermal management system 1, the internal communication port 120 can be connected to at least two valve ports 110 through the first valve core structure. Through the above arrangement, at least two valve ports 110 can be connected through the internal communication port 120, thereby forming a fluid loop in the fluid branch 50 connected to the valve ports 110, thereby facilitating fluid circulation.

[0028] Specifically, if Figure 1 As shown, the internal communication port 120 includes a first internal port 108 and a second internal port 109, which are connected via an internal branch 570. In any operating mode of the thermal management system 1, the first internal port 108 is connected to one valve port 110, and the second internal port 109 is connected to the other valve port 110. The internal branch 570 can be integrated with the first valve structure 100, or it can be a pipeline structure that connects the first internal port 108 and the second internal port 109. This arrangement facilitates communication between the internal communication port 120 and at least two valve ports 110 using a simple first valve core structure.

[0029] Furthermore, in some embodiments, the coolant system 1000 further includes a second valve structure 200 having a plurality of communication ports 210, for example, at least seven communication ports 210. One end of at least a portion of the fluid branches 50 is connected to the valve port 110, and the other end is connected to the communication port 210. By providing the first valve structure 100 and the second valve structure 200 to connect at least a portion of the fluid branches 50, and by independently operating the first valve structure 100 and the second valve structure 200, different switching modes between the multiple fluid branches 50 can be achieved, thereby facilitating the multiple thermal management modes of the thermal management system 1.

[0030] Specifically, if Figures 1 to 5As shown, in an embodiment of the present invention, the fluid branch 50 includes a first branch 510, a second branch 520, a third branch 530, a fourth branch 540, and a fifth branch 550, the valve port includes a first valve port 101, a second valve port 102, a third valve port 103, a fourth valve port 104, a fifth valve port 105, and a sixth valve port 106, and the second valve structure 200 includes a first connecting port 201, a second connecting port 202, a third connecting port 203, a fourth connecting port 204, a fifth connecting port 205 and a sixth connecting port 206.

[0031] The first branch 510 includes a first heat exchanger 81, which can be used to exchange heat with the power battery pack, for example, to heat or cool the power battery pack. The first valve port 101 is connected to the fifth communication port 205 at least through the first heat exchanger 81. The second branch 520 includes a second heat exchanger 82, which can be used to exchange heat with the drive motor group. The third valve port 103 and the fourth valve port 104 are connected at least through the second heat exchanger 82. The third branch 530 includes the third heat exchanger 83, the first coolant flow channel 841 in the fourth heat exchanger 84, and the second coolant flow channel 851 in the fifth heat exchanger 85. The fourth heat exchanger 84 and the fifth heat exchanger 85 can be coolers. The fifth valve port 105 is connected to the sixth connecting port 206 at least through the third heat exchanger 83. The fifth valve port 105 is connected to the first connecting port 201 at least through the first coolant flow channel 841. The fifth valve port 105 is connected to the second connecting port 202 through the second coolant flow channel 851. The third branch 530 can exchange heat with the passenger compartment, for example, to cool the passenger compartment. The fourth branch 540 includes the sixth heat exchanger 86, which can be a radiator that can dissipate heat to the external environment. The third connecting port 203 is connected to the sixth valve port 106 at least through the sixth heat exchanger 86. The fifth branch 550 has a first port 551, a second port 552, a third port 553 and a first heat exchange circuit. The first port 551 can be connected to the second port 552 through part of the first heat exchange circuit. The first port 551 can be connected to the third port 553. The first port 551 is connected to the second valve port 102, the second port 552 is connected to the third connecting port 203, and the third port 553 is connected to the fourth connecting port 204.

[0032] Further, in some embodiments, the fourth heat exchanger 84 also includes a first refrigerant flow channel 842, and the first refrigerant flow channel 842 and the first coolant flow channel 841 can exchange heat. The fifth heat exchanger 85 also includes a second refrigerant flow channel 852, and the second refrigerant flow channel 852 and the second coolant flow channel 851 can exchange heat. The refrigerant system 2000 includes the first refrigerant flow channel 842 and the second refrigerant flow channel 852, and the first refrigerant flow channel 842 and / or the second refrigerant flow channel 852 can be connected to the compressor in the refrigerant system 2000, so that the refrigerant in the first refrigerant flow channel 842 and the refrigerant in the second refrigerant flow channel 852 are at lower temperatures.

[0033] Please see further Figures 1 to 5 In some embodiments, the first branch 510 further includes a first pump assembly 91, and the first valve port 101 is connected to the first heat exchanger 81 via the first pump assembly 91. The second valve structure 200 further includes a seventh communication port 207. The first branch 510 has a first port 511, a second port 512, and a third port 513. The first port 511 is connected to the first valve port 101, and the first port 511 is connected to the second port 512 via the first pump assembly 91 and the first heat exchanger 81. The first port 511 is connected to the third port 513, and the third port 513 is connected to the seventh communication port 207.

[0034] To achieve circulation of the fluid in the fourth branch 540, in some embodiments, the fourth branch 540 further includes a second pump assembly 92. The fourth branch 540 has a first connection port 541, a second connection port 542, and a third connection port 543. The first connection port 541 is connected to the third connection port 203. The first connection port 541 is connected to the second connection port 542 through at least the second pump assembly 92 and the sixth heat exchanger 86. The second connection port 542 is connected to the sixth valve port 106. The first valve structure 100 further includes a seventh valve port 107. The third connection port 543 is connected to the seventh valve port 107. The first connection port 541 is connected to the second connection port 542 through at least the second pump assembly 92. This arrangement facilitates bypassing the sixth radiator 86 according to user needs.

[0035] like Figure 6 As shown, in some embodiments, the fifth branch 550 further includes a third valve structure 300, which has a first conduction port 301, a second conduction port 302, and a third conduction port 303. At least one of the second conduction port 302 and the third conduction port can communicate with the first conduction port 301. The first conduction port 301 communicates with the first port 551, the second conduction port 302 communicates with the first heat exchange circuit 554, and the third conduction port 303 communicates with both the third communication port 203 and the second pump assembly 92. The third port 553 is connected upstream of the second pump assembly 92. The first port 551 can overlap with the first conduction port 301 or be connected through a flow channel.

[0036] To achieve the heat exchange function of the first heat exchange circuit 554, in some embodiments, the first heat exchange circuit includes a seventh heat exchanger 87 and an eighth heat exchanger 88. The seventh heat exchanger 87 includes a third refrigerant flow channel 872 and a third coolant flow channel 871, which are capable of exchanging heat. The refrigerant system also includes a third refrigerant flow channel 872, and at least one of the first refrigerant flow channel 842 and the second refrigerant flow channel 852 can communicate with the third refrigerant flow channel 872. The seventh heat exchanger 87 can be an evaporator, and the eighth heat exchanger 88 can be a heater core, which can be used to heat the passenger compartment. The first heat exchange circuit 554 includes the eighth heat exchanger 88 and the third coolant flow channel 871. The first heat exchange circuit 554 further includes a third pump assembly 93. The second communication port 202 is connected to the seventh heat exchanger 87 at least through the third pump assembly 93. The communication port between the third port 553 and the first heat exchange circuit 554 is located downstream of the seventh heat exchanger 87. Furthermore, the communication port between the third port 553 and the first heat exchange circuit 554 is located upstream of the eighth heat exchanger 88. In this context, "one component is located upstream of another component" means that, along the direction of fluid flow, one component is located upstream of another component, and the fluid flows through the upstream component into the downstream component.

[0037] Please see further Figure 1 In some embodiments, the thermal management system 1 further includes a sixth branch 560 for replenishing coolant in the thermal management system 1 . The sixth branch 560 has a coolant replenishment port M7 . The coolant replenishment port M7 is connected upstream of the first pump assembly 91 ; and / or the coolant replenishment port M7 is connected upstream of the second pump assembly 92 ; and / or the coolant replenishment port M7 is connected upstream of the third pump assembly 93 .

[0038] In some embodiments, the first heat exchange circuit 554 also includes a one-way valve 555, which can unidirectionally open or close the first heat exchange circuit 554. The one-way valve 555 is located downstream of the seventh heat exchanger 87 and upstream of the eighth heat exchanger 88, or the one-way valve 555 is located downstream of the eighth heat exchanger 88 and downstream of the third pump assembly 93.

[0039] In some embodiments, the third branch 530 further includes a fourth pump assembly 94 , and the third heat exchanger 83 is connected to the fifth valve port 105 through the fourth pump assembly 94 .

[0040] In some embodiments, the first valve structure 100 further includes a first internal port 108 and a second internal port 109 , and the first internal port 108 and the second internal port 109 are always connected. The thermal management system 1 has at least one of the following operating modes:

[0041] like Figure 7 As shown, in the first operating mode, the first valve port 101 is connected to the second valve port 102, one of the sixth valve port 106 and the seventh valve port 107 is connected to the fourth valve port 104, the third valve port 103 is connected to the first internal port 108, the fifth valve port 105 is connected to the second internal port 109, the first conduction port 301 and the second conduction port 302 are connected, the fourth communication port 204 is connected to the fifth communication port 205, the first communication port 201, the second communication port 202, and the third communication port 203 are all connected, and the seventh communication port 207 and the sixth communication port 206 are both closed. This arrangement facilitates heating of the passenger compartment and the drive battery pack. At the same time, the fourth and fifth heat exchangers can simultaneously exchange heat with the drive motor, allowing for rapid cooling of the drive motor.

[0042] like Figure 8 As shown, in the second operating mode, the first valve port 101 is connected to the first internal port 108, the second internal port 109 is connected to the fourth valve port 104, the third valve port 103 is connected to the second valve port 102, one of the sixth valve port 106 and the seventh valve port 107 is connected to the fifth valve port 105, the first conduction port 301 and the second conduction port 302 are connected, the fourth communication port 204 is connected to the fifth communication port 205, the first communication port 201, the second communication port 202 and the third communication port 203 are all connected, and the seventh communication port 207 and the sixth communication port 206 are both closed. The above arrangement facilitates heating the passenger compartment and the power battery pack, thereby recovering waste heat from the drive motor group and further heating the power battery pack. At this time, the fourth heat exchanger 84 and the fifth heat exchanger 85 can dissipate heat to the environment through the sixth heat exchanger 86, thereby reducing the energy consumption of the thermal management system 1.

[0043] like Figure 9 As shown, in the third operating mode, the first valve port 101 is connected to the first internal port 108, the second internal port 109 is connected to the fourth valve port 104, the third valve port 103 is connected to the second valve port 102, one of the sixth valve port 106 and the seventh valve port 107 is connected to the fifth valve port 105, the first conduction port 301, the second conduction port 302 and the third conduction port are all connected, the first communication port 201 is connected to the sixth communication port 206, the second communication port 202 is connected to the fifth communication port 205, the third communication port 203 is connected to the fourth communication port 204, and the seventh communication port 207 is closed. Through the above arrangement, the passenger compartment can be cooled by the third heat exchanger 83, and the power battery pack can be heated at the same time, so that the waste heat of the drive motor group can be recovered and the power battery pack can be heated, thereby reducing the energy consumption of the thermal management system 1.

[0044] like Figure 10As shown, in the fourth operating mode, the first valve port 101 is connected to the first internal port 108, the third valve port 103 is connected to the second valve port 102, the fifth valve port 105 is connected to the second internal port 109, one of the sixth valve port 106 and the seventh valve port 107 is connected to the fourth valve port 104, the first conduction port 301, the second conduction port 302, and the third conduction port are all connected, the first communication port 201, the second communication port 202, and the fifth communication port 205 are connected, the third communication port 203 and the fourth communication port 204 are connected, and the seventh communication port 207 and the sixth communication port 206 are closed. Through the above configuration, the fourth heat exchanger 84 and the fifth heat exchanger 85 can both cool the power battery pack, allowing the power battery pack to cool rapidly. At the same time, the passenger compartment is heated via the eighth heat exchanger 88, and the heat generated by the drive motor group can be dissipated to the environment via the sixth heat exchanger 86.

[0045] like Figure 11 As shown, in the fifth operating mode, the first valve port 101 is connected to the first internal port 108, the third valve port 103 is connected to the second valve port 102, the fifth valve port 105 is connected to the second internal port 109, one of the sixth valve port 106 and the seventh valve port 107 is connected to the fourth valve port 104, the first conduction port 301, the second conduction port 302, and the third conduction port are all connected, the third communication port 203 is connected to the fourth communication port 204, the second communication port 202 is connected to the fifth communication port 205, the first communication port 201 is connected to the sixth communication port 206, and the seventh communication port 207 is closed. With the above arrangement, the passenger compartment can be cooled by the third heat exchanger 83, the power battery pack can be cooled by the fifth heat exchanger 85, and the heat generated by the drive motor group can be dissipated to the environment through the sixth heat exchanger 86.

[0046] like Figure 12 As shown, in the sixth operating mode, the first valve port 101 is connected to the first internal port 108, the third valve port 103 is connected to the second valve port 102, the fifth valve port 105 is connected to the second internal port 109, one of the sixth valve port 106 and the seventh valve port 107 is connected to the fourth valve port 104, the first conduction port 301, the second conduction port 302, and the third conduction port are all connected, the third communication port 203 is connected to the fourth communication port 204, the seventh communication port 207 is connected to the fifth communication port 205, and the second communication port 202, the first communication port 201, and the sixth communication port 206 are all connected. Through the above arrangement, the passenger compartment can be cooled by the third heat exchanger 83, the power battery pack can be self-circulated by using the first heat exchanger 81, and the heat generated by the drive motor group can be dissipated to the environment through the sixth heat exchanger 86.

[0047] In any of the above-mentioned operating modes, a detection component, such as a temperature sensor and / or a pressure sensor, may be provided upstream of the second pump assembly 92 for the fourth branch 540. The detection component detects the temperature and / or pressure of the fluid entering the fourth branch 540, and can selectively connect one of the sixth valve port 106 and the seventh valve port 107 to the other valve port. For example, when the detection component detects that the temperature of the fluid entering the fourth branch 540 is greater than the ambient temperature, the sixth valve port 106 may be connected to the other valve port, allowing the fluid entering the fourth branch 540 to dissipate heat through the sixth heat exchanger 86. When the detection component detects that the temperature of the fluid entering the fourth branch 540 is less than or equal to the ambient temperature, the seventh valve port 107 may be connected to the other valve port, and the sixth heat exchanger 86 may be bypassed.

[0048] To further simplify the thermal management system, the thermal management system 1 also includes a thermal management device, in which the first valve structure 100, the second valve structure 200, part of the first branch 510, part of the second branch 520, part of the third branch 530, part of the fourth branch 540, and part of the fifth branch 550 are all integrated into the thermal management device 70. For example, the first valve structure 100, the second valve structure 200, part of the first branch 510, part of the second branch 520, part of the third branch 530, part of the fourth branch 540, and part of the fifth branch 550 are all formed integrally in the thermal management device 70. The thermal management device has multiple interfaces, which are respectively connected to the first heat exchanger 81, the second heat exchanger 82, the third heat exchanger 83, the first coolant flow channel 841, and the second coolant flow channel 851.

[0049] Specifically, the first interface M1 of the thermal management device 70 provided in the embodiment of the present invention can be communicated with the inlet of the third heat exchanger 83, the second interface M2 can be communicated with the inlet of the first heat exchanger 81, the third interface M3 can be communicated with the outlet of the sixth heat exchanger 86, the fourth interface M4 can be communicated with the outlet of the second heat exchanger 82, the fifth interface M5 can be communicated with the outlet of the third heat exchanger 83, the sixth interface M6 can be communicated with the outlet of the first heat exchanger 81, the seventh interface M7 can be a coolant replenishment port, the eighth interface M8 can be communicated with the inlet of the sixth heat exchanger 86, and the ninth interface M9 can be The tenth interface M10 can be connected to the inlet of the second heat exchanger 82, the eleventh interface M11 can be connected to the inlet of the seventh heat exchanger 87, the twelfth interface M12 can be connected to the outlet of the fifth heat exchanger 85, the thirteenth interface M13 can be connected to the outlet of the fourth heat exchanger 84, the fourteenth interface M14 can be connected to the inlet of the fourth heat exchanger 84, the fifteenth interface M15 can be connected to the inlet of the fifth heat exchanger 85, the sixteenth interface M16 can be connected to the outlet of the seventh heat exchanger 87, and the seventeenth interface M17 can be connected to the inlet of the seventh heat exchanger 87.

[0050] In summary, according to the thermal management system 1 provided in an embodiment of the present invention, according to the thermal management system 1 provided in an embodiment of the present invention, the first valve structure 100 is provided with an internal connecting port 120 and multiple valve ports 110, and the internal connecting port 120 is connected with the internal connecting port 120 itself by setting an internal branch 570, and in any working mode of the thermal management system 1, the internal connecting port 120 can be connected with at least two valve ports 110, thereby enabling the internal connecting port 120 to be connected with the corresponding fluid branch 50 through the valve port 110. Compared with setting a complex valve structure to realize multiple connection relationships between corresponding valve ports, the thermal management system 1 in the embodiment of the present invention has a simple structure.

[0051] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. For example, with respect to the directional definitions of “front”, “back”, “left”, “right”, “up” and “down”, although this specification has described the present invention in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be modified, combined or replaced by equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A thermal management system (1), characterized in that The thermal management system (1) includes a coolant system (1000), the coolant system (1000) including a first valve structure (100), a plurality of fluid branches (50) and an internal branch (570), the first valve structure (100) having an internal communication port (120) and a plurality of valve ports (110), in the thermal management system (1), the internal communication port (120) is connected to the internal communication port through the internal branch (570), each of the fluid branches (50) includes at least one heat exchanger (80), each of the valve ports (110) is connected to the fluid branch (50), and in any working mode of the thermal management system (1), the internal communication port (120) can be connected to at least two of the valve ports (110).

2. The thermal management system (1) according to claim 1, characterized in that The internal communication port (120) includes a first internal port (108) and a second internal port (109), wherein the first internal port (108) and the second internal port (109) are connected via the internal branch (570). In any working mode of the thermal management system (1), the first internal port (108) is connected to one of the valve ports (110), and the second internal port (109) is connected to the other valve port (110).

3. A thermal management system (1), characterized in that The thermal management system (1) includes a coolant system (1000), the coolant system (1000) including a first valve structure (100), a plurality of fluid branches (50), and a second valve structure (200), the fluid branches (50) including a first branch (510) capable of exchanging heat with a power battery pack, a second branch (520) capable of exchanging heat with a drive motor pack, a third branch (530) capable of exchanging heat with a passenger cabin, a fourth branch (540) capable of exchanging heat with an external environment, and a fifth branch (550) capable of exchanging heat with the passenger cabin, the first valve structure (100) having at least six valve ports (110), and the second valve structure (200) having at least six communication ports (210); The first branch (510), the third branch (530), the fourth branch (540) and the fifth branch (550) are all connected between the valve port (110) and the connecting port (210), and the second branch (520) is connected between the two valve ports (110).

4. The thermal management system (1) according to any one of claims 1 to 3, characterized in that The coolant system (1000) further includes a second valve structure (200); the fluid branch (50) includes a first branch (510), a second branch (520), a third branch (530), a fourth branch (540), and a fifth branch (550); the valve port (110) includes a first valve port (101), a second valve port (102), a third valve port (103), a fourth valve port (104), a fifth valve port (105), and a sixth valve port (106); and the communication port (210) includes a first communication port (201), a second communication port (202), a third communication port (203), a fourth communication port (204), a fifth communication port (205), and a sixth communication port (206); The first branch (510) includes a first heat exchanger (81), the first valve port (101) is connected to the fifth connecting port (205) at least through the first heat exchanger (81), the second branch (520) includes a second heat exchanger (82), the third valve port (103) and the fourth valve port (104) are connected at least through the second heat exchanger (82), the third branch (530) includes the third heat exchanger (83), a first coolant flow channel (841) in the fourth heat exchanger (84) and a second coolant flow channel (851) in the fifth heat exchanger (85), the fifth valve port (105) is connected to the sixth connecting port (206) at least through the third heat exchanger (83), the fifth valve port (105) is connected to the first connecting port (201) at least through the first coolant flow channel (841), and the fifth valve port (105) is connected to the first connecting port (201) at least through the first coolant flow channel (841). The second coolant flow channel (851) is connected to the second communication port (202), the fourth branch (540) includes a sixth heat exchanger (86), the third communication port (203) is connected to the sixth valve port (106) at least through the sixth heat exchanger (86), the fifth branch (550) has a first port (551), a second port (552), a third port (553) and a first heat exchange circuit (554), the first port (551) can be connected to the second port (552) through a portion of the first heat exchange circuit (554), the first port (551) can be connected to the third port (553), the first port (551) is connected to the second valve port (102), the second port (552) is connected to the third communication port (203), and the third port (553) is connected to the fourth communication port (204).

5. The thermal management system (1) according to claim 4, characterized in that The first branch (510) further includes a first pump assembly (91), and the first valve port (101) is connected to the first heat exchanger (81) through the first pump assembly (91); The second valve structure (200) further includes a seventh communication port (207), the first branch (510) having a first port (511), a second port (512) and a third port (513), the first port (511) being in communication with the first valve port (101), the first port (511) being in communication with the second port (512) via the first pump assembly (91) and the first heat exchanger (81), the first port (511) being in communication with the third port (513), and the third port (513) being in communication with the seventh communication port (207).

6. The thermal management system (1) according to claim 5, characterized in that The fourth branch (540) further includes a second pump assembly (92). The fourth branch (540) has a first connection port (541), a second connection port (542), and a third connection port (543). The first connection port (541) is in communication with the third communication port (203). The first connection port (541) is in communication with the second connection port (542) at least through the second pump assembly (92) and the sixth heat exchanger (86). The second connection port (542) is in communication with the sixth valve port (106). The first valve structure (100) further includes a seventh valve port (107), the third connecting port (543) is in communication with the seventh valve port (107), and the first connecting port (541) is in communication with the second connecting port (542) at least through the second pump assembly (92).

7. The thermal management system (1) according to claim 6, characterized in that The fifth branch (550) further includes a third valve structure (300), the third valve structure (300) having a first conduction port (301), a second conduction port (302) and a third conduction port (303), at least one of the second conduction port (302) and the third conduction port (303) being capable of communicating with the first conduction port (301), the first conduction port (301) being communicated with the first port (551), the second conduction port (302) being communicated with the first heat exchange circuit, the third conduction port (303) being communicated with both the third communication port (203) and the second pump assembly (92), and the third port (553) being communicated with the upstream of the second pump assembly (92).

8. The thermal management system (1) according to claim 7, characterized in that The thermal management system (1) further includes a refrigerant system (2000), the fourth heat exchanger (84) further includes a first refrigerant flow channel (842), the first refrigerant flow channel (842) and the first coolant flow channel (841) are capable of exchanging heat, the fifth heat exchanger (85) further includes a second refrigerant flow channel (852), the second refrigerant flow channel (852) and the second coolant flow channel (851) are capable of exchanging heat, the refrigerant system (2000) includes the first refrigerant flow channel (842) and the second refrigerant flow channel (852), the first heat exchange circuit includes a seventh heat exchanger (87 ) and an eighth heat exchanger (88), the seventh heat exchanger (87) comprising a third refrigerant flow channel (872) and a third coolant flow channel (871), the third refrigerant flow channel (872) and the third coolant flow channel (871) being capable of exchanging heat, the refrigerant system further comprising the third refrigerant flow channel (872), at least one of the first refrigerant flow channel (842) and the second refrigerant flow channel (852) being capable of communicating with the third refrigerant flow channel (872), and the first heat exchange circuit (554) comprising the eighth heat exchanger (88) and the third coolant flow channel (871); The first heat exchange circuit (554) further includes a third pump assembly (93), the second connecting port (202) is connected to the seventh heat exchanger (87) at least through the third pump assembly (93), and the connecting port between the second port (552) and the first heat exchange circuit (554) is located downstream of the seventh heat exchanger (87).

9. The thermal management system (1) according to claim 8, characterized in that The thermal management system (1) further comprises a sixth branch (560), the sixth branch (560) being used to replenish the coolant in the thermal management system (1), the sixth branch (560) having a coolant replenishing port (M7); The coolant replenishing port (M7) is connected to the upstream of the first pump assembly (91); and / or, the coolant replenishing port (M7) is connected to the upstream of the second pump assembly (92); And / or, the coolant replenishing port (M7) is connected to the upstream of the third pump assembly (93).

10. The thermal management system (1) according to claim 8, characterized in that The first heat exchange circuit (554) further includes a one-way valve (555), which is capable of unidirectionally connecting or disconnecting the first heat exchange circuit (554). The one-way valve (555) is located downstream of the seventh heat exchanger (87) and upstream of the eighth heat exchanger (88), or the one-way valve (555) is located downstream of the eighth heat exchanger (88) and downstream of the third pump assembly (93).

11. The thermal management system (1) according to any one of claims 8 to 10, characterized in that The third branch (530) further includes a fourth pump assembly (94), and the third heat exchanger (83) is connected to the fifth valve port (105) through the fourth pump assembly (94).

12. The thermal management system (1) according to claim 11, characterized in that The internal communication port (120) includes a first internal port (108) and a second internal port (109), and the thermal management system (1) has at least one of the following working modes: In the first working mode, the first valve port (101) is in communication with the second valve port (102), one of the sixth valve port (106) and the seventh valve port (107) is in communication with the fourth valve port (104), the third valve port (103) is in communication with the first internal port (108), the fifth valve port (105) is in communication with the second internal port (109), the first conducting port (301) is in communication with the second conducting port (302), the fourth communicating port (204) is in communication with the fifth communicating port (205), the first communicating port (201), the second communicating port (202) and the third communicating port (203) are all in communication, and the seventh communicating port (207) and the sixth communicating port (206) are both closed; In the second working mode, the first valve port (101) is in communication with the first internal port (108), the second internal port (109) is in communication with the fourth valve port (104), the third valve port (103) is in communication with the second valve port (102), one of the sixth valve port (106) and the seventh valve port (107) is in communication with the fifth valve port (105), the first conducting port (301) is in communication with the second conducting port (302), the fourth communicating port (204) is in communication with the fifth communicating port (205), the first communicating port (201), the second communicating port (202) and the third communicating port (203) are all in communication, and the seventh communicating port (207) and the sixth communicating port (206) are both closed; In the third working mode, the first valve port (101) is connected to the first internal port (108), the second internal port (109) is connected to the fourth valve port (104), the third valve port (103) is connected to the second valve port (102), one of the sixth valve port (106) and the seventh valve port (107) is connected to the fifth valve port (105), the first conducting port (301), the second conducting port (302) and the third conducting port are all connected, the first communicating port (201) is connected to the sixth communicating port (206), the second communicating port (202) is connected to the fifth communicating port (205), the third communicating port (203) is connected to the fourth communicating port (204), and the seventh communicating port (207) is closed; In the fourth working mode, the first valve port (101) is connected to the first internal port (108), the third valve port (103) is connected to the second valve port (102), the fifth valve port (105) is connected to the second internal port (109), one of the sixth valve port (106) and the seventh valve port (107) is connected to the fourth valve port (104), the first conducting port (301), the second conducting port (302) and the third conducting port are all connected, the first communicating port (201), the second communicating port (202) and the fifth communicating port (205) are connected, the third communicating port (203) and the fourth communicating port (204) are connected, and the seventh communicating port (207) and the sixth communicating port (206) are closed; In the fifth working mode, the first valve port (101) is connected to the first internal port (108), the third valve port (103) is connected to the second valve port (102), the fifth valve port (105) is connected to the second internal port (109), one of the sixth valve port (106) and the seventh valve port (107) is connected to the fourth valve port (104), the first conducting port (301), the second conducting port (302) and the third conducting port are all connected, the third communicating port (203) is connected to the fourth communicating port (204), the second communicating port (202) and the fifth communicating port (205) are connected, the first communicating port (201) is connected to the sixth communicating port (206), and the seventh communicating port (207) is closed; In the sixth working mode, the first valve port (101) is connected to the first internal port (108), the third valve port (103) is connected to the second valve port (102), the fifth valve port (105) is connected to the second internal port (109), the sixth valve port (106) and one of the seventh valve port (107) are connected to the fourth valve port (104), the first conducting port (301), the second conducting port (302) and the third conducting port are all connected, the third communicating port (203) and the fourth communicating port (204) are connected, the seventh communicating port (207) and the fifth communicating port (205) are connected, and the second communicating port (202), the first communicating port (201) and the sixth communicating port (206) are all connected.

13. The thermal management system (1) according to claim 11, characterized in that The thermal management system (1) further comprises a thermal management device, wherein the first valve structure (100), the second valve structure (200), a portion of the first branch (510), a portion of the second branch (520), a portion of the third branch (530), a portion of the fourth branch (540), and a portion of the fifth branch (550) are all integrated into the thermal management device, and the thermal management device has a plurality of interfaces, which are respectively connected to the first heat exchanger (81), the second heat exchanger (82), the third heat exchanger (83), the first coolant flow channel (841), and the second coolant flow channel (851).

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