Agent-side thermal management assembly and direct-cooling direct-heat thermal management system

By designing high-temperature, medium-temperature, and low-temperature zones in the thermal management system and setting perforated heat insulation tapes in adjacent zones, the problem of insufficient integration and layout flexibility in the existing technology has been solved, realizing a highly integrated and flexible thermal management system suitable for various vehicle models.

CN224375275UActive Publication Date: 2026-06-19DONGFENG MOTOR CO LTD DONGFENG NISSAN PASSENGER VEHICLE CO

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGFENG MOTOR CO LTD DONGFENG NISSAN PASSENGER VEHICLE CO
Filing Date
2025-06-23
Publication Date
2026-06-19

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  • Figure CN224375275U_ABST
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Abstract

This utility model discloses a refrigerant-side thermal management assembly, including a flow channel plate and a heat exchanger. The heat exchanger is mounted on the flow channel plate, which includes a high-temperature zone, a medium-temperature zone, and a low-temperature zone. A perforated heat insulation strip is provided between the high-temperature zone, the medium-temperature zone, and the low-temperature zone. This utility model also discloses a direct-cooling / direct-heating thermal management system, including a water-side thermal management assembly and a refrigerant-side thermal management assembly. In this utility model, the refrigerant-side thermal management assembly is divided into a high-temperature zone, a low-temperature zone, and a medium-temperature zone, and a perforated heat insulation strip is provided between adjacent zones to minimize harmful heat transfer by the refrigerant and improve the system's cooling capacity. The direct-cooling / direct-heating thermal management system of this utility model has a high degree of integration, and the water-side and refrigerant-side components can be combined or separated to operate independently, offering high flexibility and adaptability in layout.
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Description

Technical Field

[0001] This utility model relates to the technical field of vehicle thermal management systems, and more particularly to a flux-side thermal management assembly and a direct-cooling / direct-heating thermal management system. Background Technology

[0002] In the existing technology, the main layout or structural forms of thermal management systems are decentralized, independently integrated water-side system, independently integrated agent-side system, and fully integrated water-side and agent-side systems.

[0003] Among these options, distributed layout offers high flexibility but low integration, numerous pipelines, heavy weight, large space occupation, and high cost. Single-sided independent integrated layout has fewer pipelines, moderate cost, and moderate layout flexibility, but still involves many dispersed valves and pipelines, making it a less than optimal solution in terms of space and cost. Fully integrated layout offers the highest integration and lowest cost, but poor layout flexibility, generally unsuitable for smaller engine compartment spaces, such as PHEV and REEV models. In particular, CTC models' integrated modules are developed based on indirect liquid-cooled battery systems and are not suitable for direct-cooled battery systems.

[0004] Therefore, it is necessary to design a highly integrated, flexible, and adaptable agent-side thermal management assembly and a direct-cooling / direct-heating thermal management system. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a highly integrated, flexible, and adaptable agent-side thermal management assembly and a direct-cooling and direct-heating thermal management system.

[0006] The present invention provides a heat management assembly for a heat exchanger, comprising a flow channel plate and a heat exchanger. The heat exchanger is mounted on the flow channel plate, which includes a high-temperature zone, a medium-temperature zone, and a low-temperature zone. A perforated heat insulation strip is provided between the high-temperature zone, the medium-temperature zone, and the low-temperature zone.

[0007] Furthermore, the low-temperature zone is located between the high-temperature zone and the medium-temperature zone.

[0008] Furthermore, the high-temperature zone includes a first shut-off valve, a second shut-off valve, a first throttle valve, and a temperature sensor. The first throttle valve is disposed between the first shut-off valve and the second shut-off valve, and the temperature sensor is disposed between the first shut-off valve and the first throttle valve.

[0009] Furthermore, the high-temperature zone also includes a first interface, a second interface, and a third interface, wherein the first interface and the second interface are used to connect to the battery, and the third interface is used to connect to the indoor condenser inlet;

[0010] The first interface and the second interface are connected to the first throttle valve, and the third interface is connected to the second shut-off valve.

[0011] Furthermore, the low-temperature zone includes a second throttle valve, a first check valve, and a third shut-off valve, with the first check valve located between the second throttle valve and the third shut-off valve.

[0012] Furthermore, the low-temperature zone also includes a fourth interface, a fifth interface, a sixth interface, and a seventh interface. The fourth interface is used to connect to the gas-liquid separator, the fifth interface is used to connect to the evaporator outlet, and the sixth and seventh interfaces are used to connect to the battery cold plate.

[0013] The fourth interface is connected to the second throttle valve, the fifth interface is connected to the first check valve, and the sixth interface is connected to the third shut-off valve.

[0014] Furthermore, the intermediate temperature zone also includes a third throttle valve, a fourth throttle valve, a fifth throttle valve, a sixth throttle valve, a second check valve, a third check valve, a fourth shut-off valve, and a fifth shut-off valve;

[0015] The third throttle valve is located on one side of the second check valve, the fourth throttle valve is located below the second check valve, the fourth throttle valve is located above the fifth throttle valve, the third check valve is located below the fifth throttle valve, the sixth throttle valve is located below the third check valve, the fourth shut-off valve is located below the third throttle valve, and the fifth shut-off valve is located below the fourth shut-off valve.

[0016] Furthermore, the medium-temperature zone also includes an eighth interface, a ninth interface, and a tenth interface. The eighth interface is used to connect to the evaporator inlet, the ninth interface is used to connect to the indoor condenser outlet, and the tenth interface is used to connect to the indoor condenser inlet.

[0017] The present invention also provides a direct cooling and direct heating thermal management system, including a water-side thermal management assembly, and further including the agent-side thermal management assembly described in any of the above claims.

[0018] Furthermore, the water-side thermal management assembly and the agent-side thermal management assembly are either connected as a single unit or separated.

[0019] The above technical solution has the following beneficial effects:

[0020] In this invention, the refrigerant-side thermal management system is divided into a high-temperature zone, a low-temperature zone, and a medium-temperature zone, and a perforated heat insulation strip is installed between adjacent zones to minimize harmful heat transfer by the refrigerant and improve the system's cooling capacity. This direct-cooling and direct-heating thermal management system features high integration, and the water-side and refrigerant-side systems can be combined or separated for independent operation, offering high flexibility and adaptability in its layout. Attached Figure Description

[0021] The disclosure of this utility model will become more readily understood by referring to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0022] Figure 1 This is a schematic diagram of the agent-side thermal management assembly in one embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the valve body on the agent-side thermal management assembly in one embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the interface on the front of the agent-side thermal management assembly in one embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the sixth and seventh interfaces in one embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the interface on the back of the agent-side thermal management assembly in one embodiment of the present invention;

[0027] Figure 6 This is a perspective view of a direct cooling and direct heating thermal management system according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the water-side thermal management assembly in one embodiment of the present invention.

[0029] Reference table for attached figures:

[0030] Agent-side thermal management assembly 100:

[0031] Flow channel plate 10:

[0032] High-temperature zone A: First shut-off valve 101, second shut-off valve 102, first throttle valve 106, temperature sensor 117, first interface 201, second interface 202, third interface 203;

[0033] Low temperature zone C: Second throttle valve 107, first check valve 112, third shut-off valve 103, fourth port 204, fifth port 205, sixth port 206, seventh port 207;

[0034] Medium temperature zone B: Third throttle valve 108, fourth throttle valve 109, fifth throttle valve 110, sixth throttle valve 111, second check valve 113, third check valve 114, fourth shut-off valve 104, fifth shut-off valve 105, eighth port 208, ninth port 209, tenth port 210;

[0035] Heat exchanger 20;

[0036] Water-side thermal management assembly 200. Detailed Implementation

[0037] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0038] It is readily understood that, based on the technical solution of this utility model, various structural and implementation methods can be interchanged by those skilled in the art without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0039] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0040] In some embodiments of this utility model, such as Figure 1 — Figure 2 As shown, the agent-side thermal management assembly includes a flow channel plate 10 and a heat exchanger 20. The heat exchanger 20 is mounted on the flow channel plate 10. The flow channel plate 10 includes a high-temperature zone A, a medium-temperature zone B, and a low-temperature zone C. A perforated heat insulation strip is provided between the high-temperature zone A, the medium-temperature zone B, and the low-temperature zone C.

[0041] Specifically, such as Figure 1 As shown, the flow channel plate 10 is divided into a high-temperature zone A, a medium-temperature zone B, and a low-temperature zone C according to different refrigerant working conditions. Perforated heat insulation strips are provided between adjacent zones to separate them, thereby minimizing harmful heat transfer of the refrigerant and improving the cooling power of the system.

[0042] like Figure 2 As shown, the heat exchanger 20 is connected to the flow channel plate 10, and the heat exchanger 20 provides a place for heat exchange between the refrigerant and the coolant.

[0043] Furthermore, such as Figure 1 As shown, the low-temperature zone C is located between the high-temperature zone A and the medium-temperature zone B.

[0044] Furthermore, such as Figure 2 As shown, the high-temperature zone A includes a first shut-off valve 101, a second shut-off valve 102, a first throttle valve 106, and a temperature sensor 117. The first throttle valve 106 is disposed between the first shut-off valve 101 and the second shut-off valve 102, and the temperature sensor 117 is disposed between the first shut-off valve 101 and the first throttle valve 106.

[0045] The first shut-off valve 101 and the second shut-off valve 102 are used to change the refrigerant flow direction, the first throttle valve 106 is used to change the refrigerant flow direction and reduce the refrigerant pressure, and the temperature sensor 117 is used to monitor the refrigerant status.

[0046] High-temperature zone A integrates components related to high-temperature refrigerant, which facilitates the flow of refrigerant in high-temperature zone A and avoids heat transfer from high-temperature refrigerant to other refrigerants.

[0047] Furthermore, such as Figure 3 As shown, the high-temperature zone A also includes a first interface 201, a second interface 202 and a third interface 203. The first interface 201 and the second interface 202 are used to connect the battery, and the third interface 203 is used to connect the indoor condenser inlet.

[0048] The first interface 201 and the second interface 202 are connected to the first throttle valve 106, and the third interface 203 is connected to the second shut-off valve 102.

[0049] High-temperature zone A is supplied with high-temperature refrigerant from the battery through the first interface 201 and the second interface 202, and then flows into the indoor condenser through the third interface 203. The indoor condenser cools the high-temperature refrigerant.

[0050] Furthermore, such as Figure 2 As shown, the low-temperature zone C includes a second throttle valve 107, a first check valve 112, and a third shut-off valve 103. The first check valve 112 is located between the second throttle valve 107 and the third shut-off valve 103.

[0051] The second throttle valve 107 is used to change the refrigerant flow direction and reduce the refrigerant pressure, the first check valve 112 is used to control the unidirectional flow of refrigerant, and the third shut-off valve 103 is used to change the refrigerant flow direction.

[0052] The low-temperature zone C integrates components related to the low-temperature refrigerant, which facilitates the flow of the refrigerant in the low-temperature zone C and avoids heat transfer from the low-temperature refrigerant to other refrigerants.

[0053] Furthermore, such as Figure 3 — Figure 4 As shown, the low-temperature zone C also includes a fourth interface 204, a fifth interface 205, a sixth interface 206, and a seventh interface 207. The fourth interface 204 is used to connect to the gas-liquid separator, the fifth interface 205 is used to connect to the evaporator outlet, and the sixth interface 206 and the seventh interface 207 are used to connect to the battery cold plate.

[0054] The fourth interface 204 is connected to the second throttle valve 107, the fifth interface 205 is connected to the first check valve 112, and the sixth interface 206 is connected to the third shut-off valve 103.

[0055] The low-temperature zone C is connected to the battery via the sixth interface 206 and the seventh interface 207, allowing low-temperature refrigerant to be introduced into the battery for cooling. The low-temperature refrigerant flows from the evaporator into the fifth interface 205. The low-temperature refrigerant also flows from the fourth interface 204 into the gas-liquid separator.

[0056] Furthermore, such as Figure 2 As shown, the medium temperature zone B also includes a third throttle valve 108, a fourth throttle valve 109, a fifth throttle valve 110, a sixth throttle valve 111, a second check valve 113, a third check valve 114, a fourth shut-off valve 104, and a fifth shut-off valve 105.

[0057] The third throttle valve 108 is located on one side of the second check valve 113, the fourth throttle valve 109 is located below the second check valve 113, the fourth throttle valve 109 is located above the fifth throttle valve 110, the third check valve 114 is located below the fifth throttle valve 110, the sixth throttle valve 111 is located below the third check valve 114, the fourth shut-off valve 104 is located below the third throttle valve 108, and the fifth shut-off valve 105 is located below the fourth shut-off valve 104.

[0058] Among them, the third throttle valve 108, the fourth throttle valve 109, the fifth throttle valve 110 and the sixth throttle valve 111 change the refrigerant flow direction and reduce the refrigerant pressure, the second one-way valve 113 and the third one-way valve 114 control the unidirectional flow of refrigerant, and the fourth shut-off valve 104 and the fifth shut-off valve 105 are used to change the refrigerant flow direction.

[0059] The medium-temperature zone B integrates the relevant components for the medium-temperature refrigerant, which facilitates the flow of the refrigerant in the medium-temperature zone B and avoids heat transfer from the medium-temperature refrigerant to other refrigerants.

[0060] Furthermore, such as Figure 3 and Figure 5 As shown, the medium temperature zone B also includes an eighth interface 208, a ninth interface 209, and a tenth interface 210. The eighth interface 208 is used to connect to the evaporator inlet, the ninth interface 209 is used to connect to the indoor condenser outlet, and the tenth interface 210 is used to connect to the indoor condenser inlet.

[0061] Among them, the medium temperature zone B is connected to the indoor condenser through the ninth interface 209 and the tenth interface 210, and the medium temperature refrigerant is supplied into the indoor condenser.

[0062] Better, such as Figure 5 As shown, the high-temperature zone A also includes an eleventh interface 211 and a twelfth interface 212, wherein the eleventh interface 211 is used to connect to the external condenser inlet, and the twelfth interface 212 is used to connect to the compressor outlet.

[0063] In this embodiment, the refrigerant-side thermal management assembly 100 integrates 18 valve bodies and isolates the three temperature zones through a perforated heat insulation strip to prevent heat transfer between the refrigerants.

[0064] In some embodiments of the present invention, such as Figures 6-7 As shown, the direct cooling and direct heating thermal management system includes a water-side thermal management assembly 200, and also includes a solvent-side thermal management assembly 100 in any of the above embodiments.

[0065] In this embodiment, the direct cooling and direct heating thermal management system retains only the actuator and integrates the control circuit into a separate domain controller to achieve "brainless" control, thereby reducing the overall size and cost.

[0066] Furthermore, the water-side thermal management assembly 200 and the agent-side thermal management assembly 100 can be connected as one unit or separated.

[0067] Specifically, the interface structure between the water-side thermal management assembly 200 and the agent-side thermal management assembly 100 adopts a universal design, compatible with both combined and independent use. Therefore, the water-side thermal management assembly 200 and the agent-side thermal management assembly 100 can be coupled together via bolts, or they can be separated into two modules for independent use depending on the installation environment and usage requirements. This greatly improves the flexibility and adaptability of component layout, and the possible application combinations include:

[0068] (1) For models with a single large and independent complete space in the engine compartment (such as the new EV platform model CTC), an integrated solution is adopted, with water-side and agent-side coupling, which has the highest integration and the best cost.

[0069] (2) For vehicle models with more than one complete independent space in the cabin, but each independent space is relatively small (such as the existing platform model 623), a solution of two independent components, water-side module and agent-side module, is adopted.

[0070] (3) For models with only a small, complete, and independent space in the engine compartment (such as the hybrid platform model 631), a solution of water-side module + agent-side distributed arrangement or agent-side module + water-side distributed arrangement is adopted.

[0071] This invention can combine or separate the water-side and agent-side components for independent operation, offering high flexibility in layout and adaptability to multiple platforms such as EV, PHEV, or REEV.

[0072] The above description is merely the principle and preferred embodiment of this utility model. It should be noted that, for those skilled in the art, several other modifications can be made based on the principle of this utility model, and these modifications should also be considered within the protection scope of this utility model.

Claims

1. A heat management assembly for agent side, comprising a flow channel plate and a heat exchanger, the heat exchanger being mounted on the flow channel plate, characterized in that, The flow channel plate includes a high-temperature zone, a medium-temperature zone, and a low-temperature zone, and a perforated insulating heat strip is provided between the high-temperature zone, the medium-temperature zone, and the low-temperature zone.

2. The agent-side thermal management assembly according to claim 1, characterized in that, The low-temperature zone is located between the high-temperature zone and the medium-temperature zone.

3. The agent-side thermal management assembly according to claim 2, characterized in that, The high-temperature zone includes a first shut-off valve, a second shut-off valve, a first throttle valve, and a temperature sensor. The first throttle valve is disposed between the first shut-off valve and the second shut-off valve, and the temperature sensor is disposed between the first shut-off valve and the first throttle valve.

4. The agent-side thermal management assembly according to claim 3, characterized in that, The high-temperature zone also includes a first interface, a second interface, and a third interface. The first interface and the second interface are used to connect to the battery, and the third interface is used to connect to the indoor condenser inlet. The first interface and the second interface are connected to the first throttle valve, and the third interface is connected to the second shut-off valve.

5. The agent-side thermal management assembly according to claim 2, characterized in that, The low-temperature zone includes a second throttle valve, a first check valve, and a third shut-off valve, with the first check valve located between the second throttle valve and the third shut-off valve.

6. The agent-side thermal management assembly according to claim 5, characterized in that, The low-temperature zone also includes a fourth interface, a fifth interface, a sixth interface, and a seventh interface. The fourth interface is used to connect to the gas-liquid separator, the fifth interface is used to connect to the evaporator outlet, and the sixth and seventh interfaces are used to connect to the battery cold plate. The fourth interface is connected to the second throttle valve, the fifth interface is connected to the first check valve, and the sixth interface is connected to the third shut-off valve.

7. The agent-side thermal management assembly according to claim 2, characterized in that, The intermediate temperature zone also includes a third throttle valve, a fourth throttle valve, a fifth throttle valve, a sixth throttle valve, a second check valve, a third check valve, a fourth shut-off valve, and a fifth shut-off valve; The third throttle valve is located on one side of the second check valve, the fourth throttle valve is located below the second check valve, the fourth throttle valve is located above the fifth throttle valve, the third check valve is located below the fifth throttle valve, the sixth throttle valve is located below the third check valve, the fourth shut-off valve is located below the third throttle valve, and the fifth shut-off valve is located below the fourth shut-off valve.

8. The agent-side thermal management assembly according to claim 7, characterized in that, The medium-temperature zone also includes an eighth interface, a ninth interface, and a tenth interface. The eighth interface is used to connect to the evaporator inlet, the ninth interface is used to connect to the indoor condenser outlet, and the tenth interface is used to connect to the indoor condenser inlet.

9. A direct-cooling and direct-heating thermal management system, comprising a water-side thermal management assembly, characterized in that, It also includes the agent-side thermal management assembly as described in any one of claims 1-8.

10. The direct cooling and direct heating thermal management system according to claim 9, characterized in that, The water-side thermal management assembly and the agent-side thermal management assembly can be connected as one unit or separated.