Vehicle thermal management system and vehicle

Abstract

The application provides a vehicle thermal management system, comprising: a first solid-state elastic card refrigeration and heating group, provided with a first liquid outlet port A1 and a first liquid inlet port A3; a power system heat exchanger, which is thermally coupled with a power system of a vehicle, is provided with a liquid inlet port N1 and a liquid outlet port N2, the liquid inlet port N1 is connected with the first liquid outlet port A1 through a pipeline, and the liquid outlet port N2 is connected with the first liquid inlet port A3 through a pipeline; a second solid-state elastic card refrigeration and heating group, provided with a first liquid outlet port D1 and a first liquid inlet port D3; a passenger cabin heat exchanger, which is thermally coupled with a passenger cabin of the vehicle, is provided with a liquid inlet port M1 and a liquid outlet port M2, the liquid inlet port M1 is connected with the first liquid outlet port D1 through a pipeline, and the liquid outlet port M2 is connected with the first liquid inlet port D3 through a pipeline. The application does not need high global warming potential (GWP) refrigerant, reduces the negative influence on the environment, and meets the differentiated thermal management requirements by independently configuring the solid-state elastic card refrigeration and heating devices for the power system and the passenger cabin.

Description

Technical Field

[0001] This application relates to the field of vehicle technology. Specifically, this application relates to a vehicle thermal management system and a vehicle. Background Technology

[0002] In recent years, global attention to environmental protection and sustainable energy development has been increasing. Against this backdrop, electric vehicles, with their advantages of zero emissions and low noise, are gradually becoming the mainstream direction of the automotive industry. However, the thermal management system of electric vehicles, as a key technology to ensure vehicle performance, safety, and battery life, still faces many problems that urgently need to be solved.

[0003] Traditional electric vehicle thermal management systems mostly still use vapor compression technology. In this technology, high-global-warming (GWP) refrigerant formulations are used, which has a significant negative impact on the environment. Furthermore, it is difficult to meet the diverse thermal management needs of various components in new energy vehicles, such as the battery, motor, and passenger compartment, using a single refrigerant. Utility Model Content

[0004] Therefore, it is necessary to provide a vehicle thermal management system and a vehicle to address the aforementioned technical problems.

[0005] In a first aspect, this application provides a vehicle thermal management system, comprising:

[0006] The first solid-state spring-loaded cooling and heating unit is provided with a first liquid outlet port A1 and a first liquid inlet port A3;

[0007] The power system heat exchanger is thermally coupled to the vehicle's power system and has an inlet port N1 and an outlet port N2. The inlet port N1 is connected to the first outlet port A1 through a pipeline, and the outlet port N2 is connected to the first inlet port A3 through a pipeline.

[0008] The second solid-state spring-loaded cooling and heating unit is provided with a first liquid outlet port D1 and a first liquid inlet port D3;

[0009] The passenger compartment heat exchanger is thermally coupled to the passenger compartment of the vehicle and has an inlet port M1 and an outlet port M2. The inlet port M1 is connected to the first outlet port D1 through a pipeline, and the outlet port M2 is connected to the first inlet port D3 through a pipeline.

[0010] In one embodiment, a first radiator is also included, and the power system heat exchanger includes a power battery heat exchanger and / or an engine heat exchanger.

[0011] The first solid-state spring-loaded cooling and heating unit is also provided with a second liquid outlet port A2 and a second liquid inlet port A4;

[0012] The first radiator is provided with an inlet port X1 and an outlet port X2. The inlet port X1 is connected to the second outlet port A2 through a pipe, and the outlet port X2 is connected to the second inlet port A4 through a pipe.

[0013] The power battery heat exchanger is provided with a first liquid inlet port B1 and a first liquid outlet port B2. The first liquid inlet port B1 is connected to the first liquid outlet port A1 through a pipeline, and the first liquid outlet port B2 is connected to the first liquid inlet port A3 through a pipeline.

[0014] The engine heat exchanger is provided with a first liquid inlet port C1 and a liquid outlet port C2. The first liquid inlet port C1 is connected to the first liquid outlet port A1 through a pipeline, and the liquid outlet port C2 is connected to the first liquid inlet port A3 through a pipeline.

[0015] In one embodiment, the first inlet port B1 and the first inlet port C1 are respectively connected to the output end of the first control valve (102) through pipelines, and the input end of the first control valve (102) is connected to the first outlet port A1 through pipelines.

[0016] The flow rate of cold fluid delivered to the engine heat exchanger and the power battery heat exchanger is adjusted by adjusting the opening degree of the first control valve (102).

[0017] In one embodiment, the power battery heat exchanger is further provided with a second liquid inlet port B3 and a second liquid outlet port B4;

[0018] The second inlet port B3 is connected to the second output end of the first multi-way valve (104) through a pipeline, and the second input end of the first multi-way valve (104) is connected to the second outlet port A2 through a pipeline.

[0019] The first inlet port B1 is connected to the first output end of the first multi-way valve (104) through a pipeline, and the first input end of the first multi-way valve (104) is connected to the first outlet port A1 through a pipeline.

[0020] The second outlet port B4 is connected to the second inlet port A4 via a pipeline;

[0021] By controlling the first multi-way valve, the flow paths of the second outlet port A2 and the second inlet port B3 can be connected and the flow path of the first outlet port A1 and the first inlet port B1 can be blocked, or the flow paths of the second outlet port A2 and the second inlet port B3 can be blocked and the flow path of the first outlet port A1 and the first inlet port B1 can be connected.

[0022] In one embodiment, the first solid-state cartridge cooling and heating assembly includes a first solid-state cartridge cooling and heating device and a second solid-state cartridge cooling and heating device.

[0023] The first solid-state cartridge cooling and heating device is provided with a first liquid outlet port A. 11 and the first liquid inlet port A 31 The first inlet port C1 is connected to the first outlet port A via a pipeline. 11 The first outlet port C2 is connected to the first inlet port A via a pipeline. 31 connect;

[0024] The second solid-state cartridge cooling and heating device is provided with a first liquid outlet port A. 12 and the first liquid inlet port A 32 The first inlet port B1 is connected to the first outlet port A via a pipeline. 12 The first outlet port B2 is connected to the first inlet port A via a pipeline. 32 connect;

[0025] The power battery heat exchanger is also provided with a third liquid inlet port B5, which is connected to the first liquid outlet port A via a pipeline. 11 connect;

[0026] The engine heat exchanger is also provided with a third liquid inlet port C5, which is connected to the first liquid outlet port A via a pipeline. 12 connect.

[0027] In one embodiment, a second radiator is also included, the passenger compartment heat exchanger comprising an air conditioning heat exchanger, a refrigerator heat exchanger, and / or a seat heat exchanger;

[0028] The second solid-state spring-loaded cooling and heating unit is also provided with a second liquid outlet port D2 and a second liquid inlet port D4;

[0029] The second radiator is provided with an inlet port Y1 and an outlet port Y2. The inlet port Y1 is connected to the second outlet port D2 through a pipe, and the outlet port Y2 is connected to the second inlet port D4 through a pipe.

[0030] The refrigerator heat exchanger is provided with a first liquid inlet port E1 and a first liquid outlet port E2. The first liquid inlet port E1 is connected to the first liquid outlet port D1 through a pipeline, and the first liquid outlet port E2 is connected to the first liquid inlet port D3 through a pipeline.

[0031] The air conditioning heat exchanger is provided with a first liquid inlet port F1 and a liquid outlet port F2. The first liquid inlet port F1 is connected to the first liquid outlet port D1 through a pipeline, and the liquid outlet port F2 is connected to the first liquid inlet port D3 through a pipeline.

[0032] The seat heat exchanger is provided with a first liquid inlet port G1 and a liquid outlet port G2. The first liquid inlet port G1 is connected to the first liquid outlet port D1 through a pipeline, and the liquid outlet port G2 is connected to the first liquid inlet port D3 through a pipeline.

[0033] In one embodiment, the refrigerator heat exchanger is further provided with a second liquid inlet port E3 and a second liquid outlet port E4;

[0034] The second inlet port E3 is connected to the second output terminal of the second multi-way valve (106) through a pipeline, and the second input terminal of the second multi-way valve (106) is connected to the second outlet port D2 through a pipeline.

[0035] The first inlet port E1 is connected to the first output end of the second multi-way valve (106) through a pipeline, and the first input end of the second multi-way valve (106) is connected to the first outlet port D1 through a pipeline.

[0036] The second outlet port E4 is connected to the second inlet port D4 via a pipeline;

[0037] By controlling the second multi-way valve (106), the flow path of the second liquid outlet port D2 and the second liquid inlet port E3 can be connected and the flow path of the first liquid outlet port D1 and the first liquid inlet port E1 can be blocked, or the flow path of the second liquid outlet port D2 and the second liquid inlet port E3 can be blocked and the flow path of the first liquid outlet port D1 and the first liquid inlet port E1 can be connected.

[0038] In one embodiment, the second solid-state cartridge cooling and heating unit includes a third solid-state cartridge cooling and heating device, a fourth solid-state cartridge cooling and heating device, and a fifth solid-state cartridge cooling and heating device.

[0039] The third solid-state spring-loaded cooling and heating device is provided with a first liquid outlet port D. 11 and the first liquid inlet port D 31 The first inlet port F1 is connected to the first outlet port D via a pipeline. 11 The first outlet port F2 is connected to the first inlet port D via a pipeline. 31 connect;

[0040] The fourth solid-state spring-loaded cooling and heating device is provided with a first liquid outlet port D. 12 and the first liquid inlet port D 32The first inlet port E1 is connected to the first outlet port D via a pipeline. 12 The first outlet port E2 is connected to the first inlet port D via a pipeline. 32 connect;

[0041] The fifth solid-state spring-loaded cooling and heating device is provided with a first liquid outlet port D. 13 and the first liquid inlet port D 33 The first inlet port G1 is connected to the first outlet port D via a pipeline. 13 The first outlet port G2 is connected to the first inlet port D via a pipeline. 33 connect.

[0042] In one embodiment, the refrigerator heat exchanger is further provided with a second liquid inlet port E3, which is connected to the first liquid outlet port D via a pipeline. 11 connect;

[0043] The seat heat exchanger is also provided with a second liquid inlet port G3, which is connected to the first liquid outlet port D via a pipeline. 11 connect.

[0044] Secondly, this application also provides a vehicle including a vehicle thermal management system as described in any of the above embodiments, the vehicle thermal management system being used for thermal management of the vehicle's power system and passenger compartment.

[0045] The aforementioned vehicle thermal management system and vehicle, including the solid-state cartridge cooling and heating system, utilizes the elasto-thermal effect of solid materials—a solid-state phase change technology—to achieve cooling and heating. Its heat exchange fluid can be selected from liquids with low global warming potential (GWP) or environmentally friendly liquids (such as water), eliminating the need to rely on traditional high-GWP refrigerants and thus reducing negative environmental impact. In terms of system architecture, by independently configuring solid-state cartridge cooling and heating systems for the powertrain and cockpit respectively, distributed and personalized thermal management control is achieved. Each device can operate independently according to the temperature control requirements of its corresponding component, ensuring that both the powertrain and the passenger compartment are within their optimal temperature range, meeting differentiated thermal management needs. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the structure of a vehicle thermal management system in one embodiment;

[0047] Figure 2 In one embodiment, Figure 1 A schematic diagram showing the structure of the power system heat exchanger, which is divided into an engine heat exchanger and a power battery heat exchanger.

[0048] Figure 3 In one embodiment Figure 2A schematic diagram of the structure with the first control valve added in the middle;

[0049] Figure 4 This is a schematic diagram of a structure in which a first multi-way valve is added to the heat exchanger of the power system in one embodiment;

[0050] Figure 5 This is a schematic diagram of the structure of a first solid-state cartridge cooling and heating unit divided into a first solid-state cartridge cooling and heating device and a second solid-state cartridge cooling and heating device in one embodiment.

[0051] Figure 6 This is a schematic diagram of a passenger compartment heat exchanger in one embodiment, which is divided into an air conditioning heat exchanger, a seat heat exchanger, and a refrigerator heat exchanger.

[0052] Figure 7 This is a schematic diagram of a structure in which a second multi-way valve is added to the refrigerator heat exchanger in one embodiment;

[0053] Figure 8 This is a schematic diagram of a structure in one embodiment where the second solid-state cartridge cooling and heating unit is divided into a third solid-state cartridge cooling and heating device, a fourth solid-state cartridge cooling and heating device, and a fifth solid-state cartridge cooling and heating device.

[0054] Figure 9 This is a flowchart illustrating a vehicle thermal management method in one embodiment;

[0055] Figure 10 For one embodiment Figure 9 A detailed flowchart of step S10;

[0056] Figure 11 For one embodiment Figure 9 A detailed flowchart of step S20. Detailed Implementation

[0057] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0058] In the embodiments provided in this application, it should be understood that the disclosed methods and systems can be implemented in other ways. The system embodiments described below are merely illustrative. For example, the division of units and modules is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple units or modules can be combined, or integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the various components shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, and can be electrical, mechanical, or other forms.

[0059] In addition, each functional unit in the various embodiments of this application can be integrated into a single processor, or each unit can be a separate device, or two or more units can be integrated into a single device; each functional unit in the various embodiments of this application can be implemented in hardware or in the form of hardware plus software functional units.

[0060] Those skilled in the art will understand that all or part of the steps of the following method embodiments can be implemented by program instructions and related hardware. The aforementioned program instructions can be stored in a computer-readable storage medium. When the program instructions are executed, they perform the steps of the following method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, read-only memory (ROM), magnetic disks, or optical disks.

[0061] It should be understood that the use of terms such as "system," "device," "unit," and / or "module" in this application is merely one method of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0063] If a flowchart is used in this application, it is used to illustrate the operations performed by the system according to embodiments of this application. It should be understood that the preceding or following operations are not necessarily performed in exact order. Instead, the steps can be processed in reverse order or simultaneously. Furthermore, other operations can be added to these processes, or one or more steps can be removed from them.

[0064] It should also be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the article or device that includes the aforementioned element.

[0065] In one embodiment, such as Figure 1 As shown, a vehicle thermal management system is provided. The vehicle thermal management system includes:

[0066] The first solid-state spring-loaded cooling and heating unit is provided with a first liquid outlet port A1 and a first liquid inlet port A3;

[0067] The power system heat exchanger is thermally coupled to the vehicle's power system and has an inlet port N1 and an outlet port N2. The inlet port N1 is connected to the first outlet port A1 through a pipeline, and the outlet port N2 is connected to the first inlet port A3 through a pipeline.

[0068] The second solid-state spring-loaded cooling and heating unit is provided with a first liquid outlet port D1 and a first liquid inlet port D3;

[0069] The passenger compartment heat exchanger is thermally coupled to the passenger compartment of the vehicle and has an inlet port M1 and an outlet port M2. The inlet port M1 is connected to the first outlet port D1 through a pipeline, and the outlet port M2 is connected to the first inlet port D3 through a pipeline.

[0070] The first solid-state cartridge cooling and heating unit includes one or more first solid-state cartridge cooling and heating devices; the second solid-state cartridge cooling and heating unit includes one or more second solid-state cartridge cooling and heating devices. The operation of the first or second solid-state cartridge cooling and heating unit is controlled according to the target temperature set by the user. By adjusting the operating frequency of the driver, the faster the driver frequency, the faster the solid-state cartridge cooling and heating unit heats up or cools down, thereby ensuring that the temperature can quickly and accurately reach the value set by the user.

[0071] It should be noted that the solid-state cartridge cooling and heating device has two inlet ports and two outlet ports at each end. These ports are connected to heat exchangers via pipelines, allowing fluid to enter the heat exchangers for heat exchange and heat dissipation. Each solid-state cartridge cooling and heating device includes a solid-state cartridge mechanism and a driver. The driver loads or unloads the solid-state cartridge mechanism, causing it to release or absorb heat. A fluid circulation loop is set in the solid-state cartridge mechanism. During loading and unloading, the generated heat and cold are transferred to the fluid, causing it to heat up or cool down. The heated or cooled fluid then flows through the inlet ports to the heat exchangers in the power system and passenger compartment for heat dissipation, and finally flows back through the outlet ports. Since the solid-state cartridge material inevitably generates cold energy along with heat, when the heated fluid is utilized, the cooled fluid will inevitably be generated. At this time, the cooled fluid flows through the inlet ports into the radiator for heat dissipation and then flows back through the outlet ports. Similarly, after using the cooling fluid, there will definitely be a heated fluid. At this time, the heated fluid flows into the radiator to dissipate heat and then flows back through the outlet port.

[0072] Specifically, when the power system requires cooling or heating, the first solid-state cartridge cooling and heating unit is activated, generating cold or hot fluid as needed. This fluid is then transported to the power system heat exchanger via a flow path formed by the first outlet port A1 and the inlet port N1. The power system heat exchanger exchanges heat with the power system, achieving thermal management of the power system. After the heat exchange is completed, the heated or cooled fluid flows back to the first solid-state cartridge cooling and heating unit via a flow path formed by the outlet port N2 and the first inlet port A3.

[0073] Similarly, when the passenger cabin requires cooling or heating, the second solid-state cartridge cooling and heating unit is activated, generating cold or hot fluid as needed. This fluid is then transported to the passenger cabin heat exchanger via the flow path formed by the first outlet port D1 and the inlet port M1. The passenger cabin heat exchanger exchanges heat with the passenger cabin, achieving thermal management of the passenger cabin. After the heat exchange is completed, the heated or cooled fluid flows back to the second solid-state cartridge cooling and heating unit via the flow path formed by the outlet port M2 and the first inlet port D3.

[0074] In the aforementioned vehicle thermal management system, the solid-state cartridge cooling and heating device utilizes the elasto-thermal effect of solid materials—a solid-state phase change technology—to achieve cooling and heating. Its heat exchange fluid can be selected from liquids with low global warming potential (GWP) or environmentally friendly liquids (such as water), eliminating the need to rely on traditional high-GWP refrigerants and thus reducing negative environmental impact. In terms of system architecture, by independently configuring solid-state cartridge cooling and heating devices for the powertrain and passenger compartment, distributed and personalized thermal management control is achieved. Each device can operate independently according to the temperature control requirements of its corresponding component, ensuring that both the powertrain and passenger compartment are within their optimal temperature range, meeting differentiated thermal management needs.

[0075] Each unit can be independently adjusted according to local heat load and temperature requirements. (Separately via...)

[0076] In one embodiment, the vehicle thermal management system further includes a first radiator;

[0077] The first solid-state spring-loaded cooling and heating unit is also equipped with a second liquid outlet port A2 and a second liquid inlet port A4;

[0078] The first radiator has an inlet port X1 and an outlet port X2. The inlet port X1 is connected to the second outlet port A2 through a pipe, and the outlet port X2 is connected to the second inlet port A4 through a pipe.

[0079] Specifically, as mentioned above, after the power system completes heat exchange, the temperature of the fluid flowing through its heat exchanger increases or decreases accordingly, and it returns to the first solid-state cartridge cooling and heating unit. Subsequently, the heated or cooled fluid is transported to the first radiator for heat dissipation through the flow path formed by the second outlet port A2 and the inlet port X1. After heat dissipation, the fluid flows out from the outlet port X2 of the first radiator and flows back to the first solid-state cartridge cooling and heating unit through the second inlet port A4, achieving the purpose of recycling.

[0080] In one embodiment, such as Figure 2 As shown, the power system heat exchanger includes a power battery heat exchanger and / or an engine heat exchanger;

[0081] The power battery heat exchanger is provided with a first liquid inlet port B1 and a first liquid outlet port B2. The first liquid inlet port B1 is connected to the first liquid outlet port A1 through a pipeline, and the first liquid outlet port B2 is connected to the first liquid inlet port A3 through a pipeline.

[0082] The engine heat exchanger has a first inlet port C1 and an outlet port C2. The first inlet port C1 is connected to the first outlet port A1 through a pipeline, and the outlet port C2 is connected to the first inlet port A3 through a pipeline.

[0083] It can be understood that the power battery heat exchanger and the engine heat exchanger have a parallel fluid distribution structure, and their thermal management path is as follows: cold or hot fluid from the first outlet port A1 of the first solid-state refrigeration and heating unit is simultaneously or selectively delivered to the first inlet port B1 of the power battery heat exchanger and the first inlet port C1 of the engine heat exchanger through branch pipelines. After completing the heat exchange with the power battery and / or engine, the heated or cooled fluid flows out from the first outlet port B2 of the power battery heat exchanger and the outlet port C2 of the engine heat exchanger, respectively, and after merging, returns to the first solid-state refrigeration and heating unit through the first inlet port A3, thereby achieving coordinated thermal management of the power battery and / or engine.

[0084] Furthermore, in one embodiment, such as Figure 3 As shown, the first inlet port B1 and the first inlet port C1 are respectively connected to the output end of the first control valve 102 through pipelines, and the input end of the first control valve 102 is connected to the first outlet port A1 through a pipeline.

[0085] The flow rate of cold fluid delivered to the engine heat exchanger and the power battery heat exchanger is adjusted by adjusting the opening of the first control valve 102.

[0086] Specifically, in high-temperature environments such as summer, cooling is required to ensure that both the engine and the power battery operate at their optimal temperatures. When the temperature of the engine or the power battery exceeds a preset threshold, at least one of the first solid-state cartridge cooling and heating devices in the first solid-state cartridge cooling and heating assembly is activated to generate cold fluid. This cold fluid is then guided to the engine heat exchanger and the power battery heat exchanger for cooling. Considering that the engine and the power battery may require different levels of cooling, a first control valve 102 is added at the first liquid outlet port A1 to regulate the flow rate of the cold fluid to meet their respective cooling needs. This not only improves thermal management efficiency but also ensures full energy utilization, guaranteeing the vehicle's performance and reliability under high-temperature conditions.

[0087] In one embodiment, such as Figure 4 As shown, the power battery heat exchanger is also equipped with a second liquid inlet port B3 and a second liquid outlet port B4.

[0088] The second inlet port B3 is connected to the second output terminal of the first multi-way valve 104 via a pipeline, and the second input terminal of the first multi-way valve 104 is connected to the second outlet port A2 via a pipeline.

[0089] The first inlet port B1 is connected to the first output terminal of the first multi-way valve 104 through a pipeline, and the first input terminal of the first multi-way valve 104 is connected to the first outlet port A1 through a pipeline.

[0090] The second liquid outlet port B4 is connected to the second liquid inlet port A4 via a pipeline;

[0091] By controlling the first multi-way valve, the flow paths of the second outlet port A2 and the second inlet port B3 can be connected and the flow paths of the first outlet port A1 and the first inlet port B1 can be blocked, or the flow paths of the second outlet port A2 and the second inlet port B3 can be blocked and the flow paths of the first outlet port A1 and the first inlet port B1 can be connected.

[0092] Specifically, a first multi-way valve 104 is provided at the liquid inlet port of the power battery heat exchanger. With the help of the first multi-way valve 104, the power battery heat exchanger can be connected to both ends (i.e., the two liquid outlet ports) of the first solid-state spring-loaded cooling and heating unit at the same time, so that cold fluid or hot fluid can be flexibly connected according to actual needs.

[0093] For example, in low-temperature scenarios such as winter when the ambient temperature is low, a situation may arise where the engine needs cooling while the power battery needs heating. To address this, by operating the first multi-way valve 104, the flow path between the second liquid outlet port A2 and the second liquid inlet port B3 is connected, while the flow path between the first liquid outlet port A1 and the first liquid inlet port B1 is blocked. After the flow path is set, the solid-state cartridge cooling and heating device in the first solid-state cartridge cooling and heating unit can be activated. The cold fluid is transported along the flow path formed by the first liquid outlet port A1 and the first liquid inlet port C1 to the engine heat exchanger for cooling, while the hot fluid is transported along the flow path formed by the second liquid outlet port A2 and the second liquid inlet port B3 to the power battery heat exchanger to provide the necessary heat to the power battery.

[0094] In another application scenario, where the engine does not require cooling, but the power battery does require heating, refer to... Figure 3 As shown, by operating the first control valve 102, the first liquid outlet port A1 is connected to the first liquid inlet port B1 of the power battery heat exchanger, which can meet the heating requirements of the power battery.

[0095] In one embodiment, such as Figure 5 As shown, the first solid-state cartridge cooling and heating unit includes a first solid-state cartridge cooling and heating device and a second solid-state cartridge cooling and heating device.

[0096] The first solid-state cartridge cooling and heating device is equipped with a first liquid outlet port A. 11 and the first liquid inlet port A 31 The first inlet port C1 is connected to the first outlet port A via a pipeline. 11 The first outlet port C2 is connected to the first inlet port A via a pipeline. 31 connect;

[0097] The second solid-state spring-loaded cooling and heating device is equipped with a first liquid outlet port A. 12 and the first liquid inlet port A 32 The first inlet port B1 is connected to the first outlet port A via a pipeline. 12 The first outlet port B2 is connected to the first inlet port A via a pipeline. 32 connect;

[0098] The power battery heat exchanger is also equipped with a third liquid inlet port B5, which is connected to the first liquid outlet port A via a pipeline. 11 connect;

[0099] The engine heat exchanger is also equipped with a third liquid inlet port C5, which is connected to the first liquid outlet port A via a pipeline. 12 connect.

[0100] Specifically, the first solid-state cartridge cooling and heating unit includes multiple solid-state cartridge cooling and heating devices, such as... Figure 5 The system includes a first solid-state cartridge cooling and heating device and a second solid-state cartridge cooling and heating device. The first and second solid-state cartridge cooling and heating devices are respectively connected to the engine heat exchanger and the power battery heat exchanger. Under normal operating conditions, each device independently manages the thermal management of its connected heat exchanger. When one device malfunctions, for example, if the first solid-state cartridge cooling and heating device fails, the second solid-state cartridge cooling and heating device can be connected to the engine heat exchanger to ensure that the engine's thermal management is not affected. Similarly, when the second solid-state cartridge cooling and heating device malfunctions, corresponding measures can be taken to ensure the normal operation of the power battery's thermal management.

[0101] In addition, to further improve the reliability and stability of the system, a backup solid-state cartridge cooling and heating device can be set up to deal with the extreme situation where both devices fail at the same time.

[0102] In one embodiment, the vehicle thermal management system further includes a second radiator, and the passenger compartment heat exchanger includes an air conditioning heat exchanger, a refrigerator heat exchanger, and / or a seat heat exchanger.

[0103] The second solid-state spring-loaded cooling and heating unit is also equipped with a second liquid outlet port D2 and a second liquid inlet port D4;

[0104] The second radiator is provided with an inlet port Y1 and an outlet port Y2. The inlet port Y1 is connected to the second outlet port D2 through a pipe, and the outlet port Y2 is connected to the second inlet port D4 through a pipe.

[0105] The refrigerator heat exchanger is provided with a first liquid inlet port E1 and a first liquid outlet port E2. The first liquid inlet port E1 is connected to the first liquid outlet port D1 through a pipe, and the first liquid outlet port E2 is connected to the first liquid inlet port D3 through a pipe.

[0106] An air conditioning heat exchanger is provided with a first liquid inlet port F1 and a liquid outlet port F2. The first liquid inlet port F1 is connected to the first liquid outlet port D1 through a pipeline, and the liquid outlet port F2 is connected to the first liquid inlet port D3 through a pipeline.

[0107] The seat heat exchanger is provided with a first liquid inlet port G1 and a liquid outlet port G2. The first liquid inlet port G1 is connected to the first liquid outlet port D1 through a pipeline, and the liquid outlet port G2 is connected to the first liquid inlet port D3 through a pipeline.

[0108] Specifically, passenger cabins typically include air conditioning, refrigerators, and seat thermal management. Regarding this, firstly, such as... Figure 6As shown, a solid-state spring-loaded cooling and heating device is installed to achieve unified control of the air conditioner, refrigerator, and seat's thermal management. During actual operation, based on the user-set target temperature, the flow rate of fluid within the solenoid valve is controlled to flexibly distribute cooling or heating, ensuring that the temperatures of the air conditioner, refrigerator, and seat all meet the user's set requirements. Secondly, as... Figure 8 As shown, solid-state spring-loaded cooling and heating devices are independently installed in the vicinity of the air conditioner, refrigerator, and seats.

[0109] In addition, cooling capacity can be set according to usage frequency. For example, air conditioners are used more frequently, so they can be equipped with solid-state cartridge cooling and heating devices with higher cooling capacity; while refrigerators and seats are used less frequently, so they can be equipped with solid-state cartridge cooling and heating devices with lower cooling capacity.

[0110] To save energy, improve ease of use, and allow for device replacement in case of failure, at least three solid-state spring-loaded cooling and heating devices should be installed, such as... Figure 8 As shown, this is to ensure the stability and reliability of the system.

[0111] In one embodiment, the refrigerator heat exchanger is further provided with a second liquid inlet port E3 and a second liquid outlet port E4;

[0112] The second inlet port E3 is connected to the second output terminal of the second multi-way valve 106 via a pipeline, and the second input terminal of the second multi-way valve 106 is connected to the second outlet port D2 via a pipeline.

[0113] The first inlet port E1 is connected to the first output terminal of the second multi-way valve 106 via a pipeline, and the first input terminal of the second multi-way valve 106 is connected to the first outlet port D1 via a pipeline.

[0114] The second liquid outlet port E4 is connected to the second liquid inlet port D4 via a pipeline;

[0115] By controlling the second multi-way valve 106, the flow paths of the second outlet port D2 and the second inlet port E3 can be connected and the flow paths of the first outlet port D1 and the first inlet port E1 can be blocked, or the flow paths of the second outlet port D2 and the second inlet port E3 can be blocked and the flow paths of the first outlet port D1 and the first inlet port E1 can be connected.

[0116] Specifically, such as Figure 7As shown, when there is a heating demand in the air conditioner and seats (i.e., hot fluid flows through the area where the air conditioner and seats are located), the branch of the refrigerator heat exchanger is connected to the second radiator (at this time, cold fluid flows through the second radiator). A second multi-way valve 106 is installed at the liquid inlet port of the refrigerator heat exchanger. With the help of the second multi-way valve 106, the refrigerator heat exchanger can be connected to both ends (i.e., the two liquid outlet ports) of the second solid spring-loaded refrigeration and heating unit at the same time, so that cold fluid or hot fluid can be flexibly connected according to actual needs.

[0117] The specific flow path is as follows: By operating the second multi-way valve 106, the flow path between the second liquid outlet port D2 and the second liquid inlet port E3 is connected, while the flow path between the first liquid outlet port D1 and the first liquid inlet port E1 is blocked. After the flow path is set, the solid-state cartridge cooling and heating device in the second solid-state cartridge cooling and heating unit can be activated. The hot fluid is transported to the air conditioner heat exchanger and the seat heat exchanger for heating along the flow paths formed by the first liquid outlet port D1 and the first liquid inlet port F1 and the first liquid outlet port D1 and the first liquid inlet port G1, respectively. The cold fluid is transported to the refrigerator heat exchanger for cooling along the flow path formed by the second liquid outlet port D2 and the second liquid inlet port E3. In addition, by adjusting the flow rate of the cold fluid at the second radiator and the refrigerator heat exchanger, the cooling capacity of the refrigerator can be effectively and flexibly controlled to meet the requirements of the refrigerator's cooling effect in different scenarios.

[0118] In one embodiment, such as Figure 8 As shown, the second solid-state cartridge cooling and heating unit includes a third solid-state cartridge cooling and heating device, a fourth solid-state cartridge cooling and heating device, and a fifth solid-state cartridge cooling and heating device.

[0119] The third solid-state spring-loaded cooling and heating device is equipped with a first liquid outlet port D. 11 and the first liquid inlet port D 31 The first inlet port F1 is connected to the first outlet port D via a pipeline. 11 The first outlet port F2 is connected to the first inlet port D via a pipeline. 31 connect;

[0120] The fourth solid-state cartridge cooling and heating device is equipped with a first liquid outlet port D. 12 and the first liquid inlet port D 32 The first inlet port E1 is connected to the first outlet port D via a pipeline. 12 The first outlet port E2 is connected to the first inlet port D via a pipeline. 32 connect;

[0121] The fifth solid-state cartridge cooling and heating device is equipped with a first liquid outlet port D. 13 and the first liquid inlet port D 33 The first inlet port G1 is connected to the first outlet port D via a pipeline.13 The first outlet port G2 is connected to the first inlet port D via a pipeline. 33 connect.

[0122] Furthermore, the refrigerator heat exchanger is also equipped with a second liquid inlet port E3, which is connected to the first liquid outlet port D via a pipeline. 11 connect;

[0123] The seat heat exchanger is also equipped with a second liquid inlet port G3, which is connected to the first liquid outlet port D via a pipeline. 11 connect.

[0124] Specifically, in a practical application, when the air conditioner is in cooling mode, if the fourth solid-state cartridge cooling / heating device of the refrigerator malfunctions or the cooling temperature is too low, considering the relatively high frequency of air conditioner use, the third solid-state cartridge cooling / heating device with higher cooling capacity can be activated. The specific operation involves connecting the third solid-state cartridge cooling / heating device to the refrigerator's heat exchanger to provide cooling services to the refrigerator. Similarly, when a seat has a cooling (heat dissipation) requirement, this solution can also be used, that is, utilizing the third solid-state cartridge cooling / heating device to cool (dissipate heat) the seat.

[0125] In another practical application, when both the air conditioner and the seat require heating, if the fifth solid-state cartridge cooling and heating device equipped with the seat malfunctions, a third solid-state cartridge cooling and heating device with higher cooling capacity and heating function can be connected to the seat heat exchanger to provide heating for the seat. Meanwhile, there are two feasible solutions for the refrigerator's cooling needs. First, the refrigerator can use a fourth solid-state cartridge cooling and heating device; second, the refrigerator can also be connected to a branch of the second radiator (in which case cold fluid flows).

[0126] In one embodiment, such as Figure 2 As shown, the second solid-state cartridge cooling and heating unit is connected to the engine heat exchanger and the power battery heat exchanger. According to priority, the thermal management of the engine and power battery requires priority control. In extreme situations, such as malfunctions, extreme cold, or extreme heat, when the engine and power battery require more cooling capacity (malfunction or extremely hot ambient temperature), or the power battery requires more heating capacity (extremely cold ambient temperature), the hot or cold fluid from the second solid-state cartridge cooling and heating unit is controlled to flow into the engine and power battery to supplement their cooling capacity.

[0127] In another embodiment, the first solid-state cartridge cooling and heating unit is connected to an air conditioner, a refrigerator, and a seat. When the engine does not need to be cooled, the cooling capacity generated by the first solid-state cartridge cooling and heating unit can be supplied to the refrigerator (at extremely low temperatures or in case of malfunction) or the air conditioner, depending on the specific scenario.

[0128] In one embodiment, a vehicle is also provided. The vehicle includes a vehicle thermal management system as described in any of the above embodiments, the vehicle thermal management system being used for thermal management of the vehicle's powertrain and passenger compartment.

[0129] Based on the same inventive concept, in one embodiment, such as Figure 9 As shown, a vehicle thermal management method is also provided. This vehicle thermal management method includes:

[0130] Step S10: In response to the power system thermal management command, control the first solid-state cartridge cooling and heating unit to perform thermal management on the vehicle's power system; wherein, the first solid-state cartridge cooling and heating unit includes a first solid-state cartridge cooling and heating device.

[0131] Step S20: In response to the passenger compartment thermal management command, control the second solid-state cartridge cooling and heating unit to perform thermal management on the passenger compartment of the vehicle; wherein, the second solid-state cartridge cooling and heating unit includes a second solid-state cartridge cooling and heating device.

[0132] For details, please refer to the following: Figure 1 and Figure 9 When the power system requires cooling or heating, the first solid-state cartridge cooling and heating unit is activated, generating cold or hot fluid as needed. This fluid is then transported to the power system heat exchanger via the flow path formed by the first outlet port A1 and the inlet port N1. The power system heat exchanger exchanges heat with the power system, achieving thermal management of the power system. After the heat exchange is completed, the heated or cooled fluid flows back to the first solid-state cartridge cooling and heating unit via the flow path formed by the outlet port N2 and the first inlet port A3.

[0133] Similarly, when the passenger cabin requires cooling or heating, the second solid-state cartridge cooling and heating unit is activated, generating cold or hot fluid as needed. This fluid is then transported to the passenger cabin heat exchanger via the flow path formed by the first outlet port D1 and the inlet port M1. The passenger cabin heat exchanger exchanges heat with the passenger cabin, achieving thermal management of the passenger cabin. After the heat exchange is completed, the heated or cooled fluid flows back to the second solid-state cartridge cooling and heating unit via the flow path formed by the outlet port M2 and the first inlet port D3.

[0134] In the aforementioned vehicle thermal management methods, the solid-state spring-loaded refrigeration and heating device utilizes the elasto-thermal effect of solid materials—a solid-state phase change technology—to achieve cooling and heating. Its heat exchange fluid can be selected from liquids with low global warming potential (GWP) or environmentally friendly liquids (such as water), eliminating the need to rely on traditional high-GWP refrigerants, thereby reducing negative environmental impacts. In terms of system architecture, by independently configuring solid-state spring-loaded refrigeration and heating devices for the powertrain and cockpit respectively, distributed and personalized thermal management control is achieved. Each device can operate independently according to the temperature control requirements of its corresponding component, ensuring that both the powertrain and the passenger compartment are within their optimal temperature range, meeting differentiated thermal management needs.

[0135] In one embodiment, the powertrain includes an engine and / or a power battery. Based on this, as... Figure 10 As shown, step S10, "in response to the power system thermal management command, controlling the first solid-state cartridge cooling and heating unit to perform thermal management of the vehicle's power system," specifically includes:

[0136] Step S101: When the condition that the engine and / or power battery need to be cooled is triggered, at least one of the first solid-state cartridge cooling and heating devices in the first solid-state cartridge cooling and heating group is activated, and the cold fluid generated by the first solid-state cartridge cooling and heating device is delivered to the engine heat exchanger and / or power battery heat exchanger to cool the engine and / or power battery.

[0137] Step S103: When the ambient temperature is detected to meet the low temperature condition, if the engine needs to be cooled and the power battery needs to be heated, at least one of the first solid-state cartridge cooling and heating devices in the first solid-state cartridge cooling and heating group is activated, and the cold fluid generated by the first solid-state cartridge cooling and heating device is delivered to the engine heat exchanger, and the hot fluid generated is delivered to the power battery heat exchanger; if the engine does not need to be cooled and the power battery needs to be heated, at least one of the first solid-state cartridge cooling and heating devices in the first solid-state cartridge cooling and heating group is activated, and the hot fluid generated by the first solid-state cartridge cooling and heating device is delivered to the power battery heat exchanger to heat the power battery.

[0138] In an optional embodiment, step S101, "transporting the cold fluid generated by the first solid-state cartridge cooling and heating device to the engine heat exchanger and the power battery heat exchanger," specifically includes:

[0139] Step S1011: Monitor the actual temperature of the engine and the power battery, and calculate the temperature deviation between the actual temperature and the respective set target temperature.

[0140] In step S1013, if the temperature deviations of the two are different, the flow rate of the cold fluid delivered to the engine heat exchanger and the power battery heat exchanger is adjusted by adjusting the opening of the first control valve set in the corresponding flow path.

[0141] Specifically, please refer to Figure 3 In high-temperature environments such as summer, cooling is necessary to ensure that both the engine and the power battery operate at their optimal temperatures. When the temperature of the engine or the power battery exceeds a preset threshold, at least one of the first solid-state cartridge cooling and heating devices in the first solid-state cartridge cooling and heating assembly is activated to generate cold fluid. This cold fluid is then guided to the engine heat exchanger and the power battery heat exchanger for cooling. Considering that the engine and the power battery may require different levels of cooling, a first control valve 102 is added at the first liquid outlet port A1 to regulate the flow rate of the cold fluid to meet their respective cooling needs. This not only improves thermal management efficiency but also ensures full energy utilization, guaranteeing the vehicle's performance and reliability under high-temperature conditions.

[0142] In an optional embodiment, the power battery heat exchanger is provided with a first liquid inlet port B1 and a second liquid inlet port B3, which are respectively connected to the output end of a first multi-way valve through pipelines. The input end of the first multi-way valve is connected to the first liquid outlet port A1 and the second liquid outlet port A2 of the first solid-state cartridge cooling and heating device through pipelines. The first liquid outlet port A1 is also connected to the liquid inlet port C1 of the engine heat exchanger through pipelines. The first liquid inlet port B1 is used to receive cold or hot fluid delivered by the first solid-state cartridge cooling and heating device, and the second liquid inlet port B3 is used to receive hot or cold fluid delivered by the first solid-state cartridge cooling and heating device.

[0143] Based on this, step S103, "transporting the cold fluid generated by the first solid-state cartridge cooling and heating device to the engine heat exchanger, and the generated hot fluid to the power battery heat exchanger," specifically includes:

[0144] Step S1031: Control the first multi-way valve to connect the flow paths of the second liquid outlet port A2 and the second liquid inlet port B3, and block the flow paths of the first liquid outlet port A1 and the first liquid inlet port B1. The cold fluid generated by the first solid-state cartridge cooling and heating device is transported to the engine heat exchanger through the flow path formed by the first liquid outlet port A1 and the liquid inlet port C1, and the generated hot fluid is transported to the power battery heat exchanger through the flow path formed by the second liquid outlet port A2 and the second liquid inlet port B3.

[0145] Specifically, a first multi-way valve 104 (e.g., a solenoid valve) is installed at the liquid inlet port of the power battery heat exchanger. With the help of the first multi-way valve 104, the power battery heat exchanger can be connected to both ends (i.e., the two liquid outlet ports) of the first solid-state spring-loaded cooling and heating unit at the same time, so that cold fluid or hot fluid can be flexibly connected according to actual needs.

[0146] For example, in low-temperature scenarios such as winter when the ambient temperature is low, a situation may arise where the engine needs cooling while the power battery needs heating. To address this, by operating the first multi-way valve 104, the flow path between the second liquid outlet port A2 and the second liquid inlet port B3 is connected, while the flow path between the first liquid outlet port A1 and the first liquid inlet port B1 is blocked. After the flow path is set, the solid-state cartridge cooling and heating device in the first solid-state cartridge cooling and heating unit can be activated. The cold fluid is transported along the flow path formed by the first liquid outlet port A1 and the first liquid inlet port C1 to the engine heat exchanger for cooling, while the hot fluid is transported along the flow path formed by the second liquid outlet port A2 and the second liquid inlet port B3 to the power battery heat exchanger to provide the necessary heat to the power battery.

[0147] In another application scenario, where the engine does not require cooling, but the power battery does require heating, refer to... Figure 3 As shown, by operating the first control valve 102, the first liquid outlet port A1 is connected to the first liquid inlet port B1 of the power battery heat exchanger, which can meet the heating requirements of the power battery.

[0148] In one embodiment, there are multiple first solid-state cartridge cooling and heating devices, and the power system includes an engine and a power battery. Each first solid-state cartridge cooling and heating device is connected to a corresponding engine heat exchanger or power battery heat exchanger via a pipeline. Based on this, as... Figure 10 As shown, step S10, "in response to the power system thermal management command, controlling the first solid-state cartridge cooling and heating unit to perform thermal management of the vehicle's power system," specifically includes:

[0149] Step S102: Monitor the operating status of each first solid-state cartridge cooling and heating device;

[0150] Step S104: If any of the first solid-state cartridge cooling and heating devices malfunctions, the other normally operating first solid-state cartridge cooling and heating devices are connected to the engine heat exchanger or power battery heat exchanger connected to the malfunctioning first solid-state cartridge cooling and heating device, so as to continue to perform thermal management on the engine or power battery.

[0151] Step S106: If multiple first solid-state cartridge cooling and heating devices fail simultaneously, the backup first solid-state cartridge cooling and heating device is activated and connected to the engine heat exchanger and / or power battery heat exchanger to continue thermal management of the engine and / or power battery.

[0152] Specifically, the first solid-state cartridge cooling and heating unit includes multiple solid-state cartridge cooling and heating devices, such as... Figure 5The system includes a first solid-state cartridge cooling and heating device and a second solid-state cartridge cooling and heating device. The first and second solid-state cartridge cooling and heating devices are respectively connected to the engine heat exchanger and the power battery heat exchanger. Under normal operating conditions, each device independently manages the thermal management of its connected heat exchanger. When one device malfunctions, for example, if the first solid-state cartridge cooling and heating device fails, the second solid-state cartridge cooling and heating device can be connected to the engine heat exchanger to ensure that the engine's thermal management is not affected. Similarly, when the second solid-state cartridge cooling and heating device malfunctions, corresponding measures can be taken to ensure the normal operation of the power battery's thermal management.

[0153] In addition, to further improve the reliability and stability of the system, a backup solid-state cartridge cooling and heating device can be set up to deal with the extreme situation where both devices fail at the same time.

[0154] In one embodiment, the second solid-state cartridge cooling and heating device is one unit, and the passenger compartment includes air conditioning, seats, and / or a refrigerator. Based on this, as... Figure 11 As shown, step S20, "in response to the passenger compartment thermal management command, controlling the second solid-state cartridge cooling and heating unit to perform thermal management on the vehicle's passenger compartment," specifically includes:

[0155] In step S201, in response to a cooling or heating command for the air conditioner, seat, and / or refrigerator, the opening of the second control valve leading to the corresponding flow path is adjusted according to the target temperature set by the air conditioner, seat, and / or refrigerator, so as to regulate the flow rate of cold or hot fluid delivered to the air conditioner heat exchanger, seat heat exchanger, and / or refrigerator heat exchanger.

[0156] Specifically, passenger cabins typically include air conditioning, refrigerators, and seat thermal management. Regarding this, firstly, such as... Figure 6 As shown, a solid-state spring-loaded cooling and heating device is installed to achieve unified control of the thermal management of the air conditioner, refrigerator, and seat. During actual operation, based on the target temperature set by the user, the flow rate of the fluid in the second control valve (e.g., a solenoid valve) is controlled to flexibly distribute cooling or heating, ensuring that the temperatures of the air conditioner, refrigerator, and seat all meet the user's set requirements.

[0157] In one embodiment, the refrigerator heat exchanger is provided with a first liquid inlet port E1 and a second liquid inlet port E3, which are respectively connected to the output end of a second multi-way valve through pipelines. The input end of the second multi-way valve is connected to the first liquid outlet port D1 and the second liquid outlet port D2 of the second solid-state spring-loaded refrigeration and heating device through pipelines. The first liquid outlet port D1 is also connected to the liquid inlet port F1 of the air conditioner heat exchanger and the liquid inlet port G1 of the seat heat exchanger through pipelines. The first liquid inlet port E1 is used to receive cold or hot fluid delivered by the second solid-state spring-loaded refrigeration and heating device, and the second liquid inlet port E3 is used to receive hot or cold fluid delivered by the second solid-state spring-loaded refrigeration and heating device.

[0158] Based on this, such as Figure 11 As shown, step S20, "in response to the passenger compartment thermal management command, controlling the second solid-state cartridge cooling and heating unit to perform thermal management on the vehicle's passenger compartment," specifically includes:

[0159] In step S203, in response to the heating command for the air conditioner and / or the seat, and the cooling command for the refrigerator, the second multi-way valve is controlled to connect the flow path of the second liquid outlet port D2 and the second liquid inlet port E3, and block the flow path of the first liquid outlet port D1 and the first liquid inlet port E1. The hot fluid generated by the second solid spring cooling and heating device is transported to the air conditioner heat exchanger and the seat heat exchanger through the flow path formed by the first liquid outlet port D1 and the liquid inlet port F1 and the flow path formed by the first liquid outlet port D1 and the liquid inlet port G1, respectively. The cold fluid generated is transported to the refrigerator heat exchanger through the flow path formed by the second liquid outlet port D2 and the second liquid inlet port E3.

[0160] like Figure 7 As shown, when there is a heating demand in the air conditioner and seats (i.e., hot fluid flows through the area where the air conditioner and seats are located), the branch of the refrigerator heat exchanger is connected to the second radiator (at this time, cold fluid flows through the second radiator). A second multi-way valve 106 is installed at the liquid inlet port of the refrigerator heat exchanger. With the help of the second multi-way valve 106, the refrigerator heat exchanger can be connected to both ends (i.e., the two liquid outlet ports) of the second solid spring-loaded refrigeration and heating unit at the same time, so that cold fluid or hot fluid can be flexibly connected according to actual needs.

[0161] The specific flow path is as follows: By operating the second multi-way valve 106, the flow path between the second liquid outlet port D2 and the second liquid inlet port E3 is connected, while the flow path between the first liquid outlet port D1 and the first liquid inlet port E1 is blocked. After the flow path is set, the solid-state cartridge cooling and heating device in the second solid-state cartridge cooling and heating unit can be activated. The hot fluid is transported to the air conditioner heat exchanger and the seat heat exchanger for heating along the flow paths formed by the first liquid outlet port D1 and the first liquid inlet port F1 and the first liquid outlet port D1 and the first liquid inlet port G1, respectively. The cold fluid is transported to the refrigerator heat exchanger for cooling along the flow path formed by the second liquid outlet port D2 and the second liquid inlet port E3. In addition, by adjusting the flow rate of the cold fluid at the second radiator and the refrigerator heat exchanger, the cooling capacity of the refrigerator can be effectively and flexibly controlled to meet the requirements of the refrigerator's cooling effect in different scenarios.

[0162] In one embodiment, there are multiple second solid-state cartridge cooling and heating devices. The passenger compartment includes an air conditioner, seats, and a refrigerator. Each second solid-state cartridge cooling and heating device is connected to a corresponding air conditioner heat exchanger, seat heat exchanger, or refrigerator heat exchanger via a pipeline. The second solid-state cartridge cooling and heating device corresponding to the air conditioner is provided with a first liquid outlet port D. 11 Second outlet port D 21 First outlet port D 11 Connect it to the liquid inlet port F1 of the air conditioning heat exchanger via a pipeline.

[0163] Based on this, such as Figure 11 As shown, step S20, "in response to the passenger compartment thermal management command, controlling the second solid-state cartridge cooling and heating unit to perform thermal management on the vehicle's passenger compartment," specifically includes:

[0164] Step S202: In response to a cooling or heating command for the air conditioner, seat, and refrigerator, if the second solid-state spring-loaded cooling / heating device corresponding to the refrigerator and / or seat malfunctions or has insufficient capacity, the first liquid outlet port D is controlled. 11 It is connected to the refrigerator heat exchanger and / or the seat heat exchanger to allow the cold or hot fluid generated by the second solid-state cartridge refrigeration and heating device corresponding to the air conditioner to pass through the first liquid outlet port D. 11 It is delivered to the refrigerator heat exchanger and / or seat heat exchanger.

[0165] Specifically, such as Figure 8As shown, in a practical application, when the air conditioner is in cooling mode, if the fourth solid-state cartridge cooling / heating device equipped in the refrigerator malfunctions or the cooling temperature is low, considering the relatively high frequency of air conditioner use, the third solid-state cartridge cooling / heating device with higher cooling capacity can be activated. Specifically, the third solid-state cartridge cooling / heating device is connected to the refrigerator's heat exchanger to provide cooling services to the refrigerator. Similarly, when a seat has a cooling (heat dissipation) requirement, this solution can also be used, that is, the third solid-state cartridge cooling / heating device is used to cool (dissipate heat) the seat.

[0166] In one embodiment, such as Figure 11 As shown, step S20, "in response to the passenger compartment thermal management command, controlling the second solid-state cartridge cooling and heating unit to perform thermal management on the vehicle's passenger compartment," specifically includes:

[0167] In step S204, in response to heating commands for the air conditioner and seat, and cooling commands for the refrigerator, if the second solid-state spring-loaded cooling and heating device corresponding to the seat malfunctions or has insufficient heating capacity, the first liquid outlet port D is controlled. 11 It is connected to the seat heat exchanger so that the hot fluid generated by the second solid-state cartridge cooling and heating device corresponding to the air conditioner can be transferred through the first liquid outlet port D. 11 The liquid is delivered to the seat heat exchanger, and the second liquid outlet port D is controlled. 21 It is connected to the refrigerator heat exchanger so that the cold fluid generated by the second solid-state cartridge refrigeration and heating device corresponding to the air conditioner can be discharged through the second liquid outlet port D. 21 It is then transported to the refrigerator heat exchanger.

[0168] Specifically, when both the air conditioner and the seats require heating, if the fifth solid-state cartridge cooling and heating device equipped with the seat malfunctions, a third solid-state cartridge cooling and heating device with higher cooling capacity and heating function can be connected to the seat heat exchanger to provide heating for the seat. Meanwhile, there are two feasible solutions for the refrigerator's cooling needs. First, the refrigerator can use a fourth solid-state cartridge cooling and heating device; second, the refrigerator can also be connected to a branch of the second radiator (in which case cold fluid flows).

[0169] In one embodiment, the vehicle thermal management method further includes the following steps:

[0170] Step S30: If the power system is in an extreme operating condition or a fault state, the second solid-state cartridge cooling and heating unit is connected to the power system heat exchanger to supplement the cold or hot fluid generated by the second solid-state cartridge cooling and heating unit to the power system heat exchanger so as to prioritize the thermal management of the power system.

[0171] Step S40: If the power system does not require cooling or the passenger compartment is in an extreme operating condition or a fault state, the first solid-state cartridge cooling and heating unit is connected to the passenger compartment heat exchanger to deliver the cold fluid generated by the first solid-state cartridge cooling and heating unit to the passenger compartment heat exchanger.

[0172] Specifically, the second solid-state cartridge cooling and heating unit is connected to the engine heat exchanger and the power battery heat exchanger. According to priority, the thermal management of the engine and power battery needs to be controlled first. In extreme situations, such as malfunctions, extreme cold, or extreme heat, when the engine and power battery require more cooling capacity (malfunction or extremely hot ambient temperature), or the power battery requires more heating capacity (extremely cold ambient temperature), the hot or cold fluid from the second solid-state cartridge cooling and heating unit is controlled to flow into the engine and power battery to supplement their cooling capacity.

[0173] In another embodiment, the first solid-state cartridge cooling and heating unit is connected to an air conditioner, a refrigerator, and a seat. When the engine does not need to be cooled, the cooling capacity generated by the first solid-state cartridge cooling and heating unit can be supplied to the refrigerator (at extremely low temperatures or in case of malfunction) or the air conditioner, depending on the specific scenario.

[0174] The above description is merely a specific implementation of the embodiments of the present invention, but the protection scope of the embodiments of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the embodiments of the present invention should be included within the protection scope of the embodiments of the present invention. Therefore, the protection scope of the embodiments of the present invention should be determined by the protection scope of the claims.

Claims

1. A vehicle thermal management system, characterized in that, include: The first solid-state spring-loaded cooling and heating unit is provided with a first liquid outlet port A1 and a first liquid inlet port A3; The power system heat exchanger is thermally coupled to the vehicle's power system and has an inlet port N1 and an outlet port N2. The inlet port N1 is connected to the first outlet port A1 through a pipeline, and the outlet port N2 is connected to the first inlet port A3 through a pipeline. The second solid-state spring-loaded cooling and heating unit is provided with a first liquid outlet port D1 and a first liquid inlet port D3; The passenger compartment heat exchanger is thermally coupled to the passenger compartment of the vehicle and has an inlet port M1 and an outlet port M2. The inlet port M1 is connected to the first outlet port D1 through a pipeline, and the outlet port M2 is connected to the first inlet port D3 through a pipeline.

2. The vehicle thermal management system according to claim 1, characterized in that, It also includes a first radiator, wherein the power system heat exchanger comprises a power battery heat exchanger and / or an engine heat exchanger; The first solid-state spring-loaded cooling and heating unit is also provided with a second liquid outlet port A2 and a second liquid inlet port A4; The first radiator is provided with an inlet port X1 and an outlet port X2. The inlet port X1 is connected to the second outlet port A2 through a pipe, and the outlet port X2 is connected to the second inlet port A4 through a pipe. The power battery heat exchanger is provided with a first liquid inlet port B1 and a first liquid outlet port B2. The first liquid inlet port B1 is connected to the first liquid outlet port A1 through a pipeline, and the first liquid outlet port B2 is connected to the first liquid inlet port A3 through a pipeline. The engine heat exchanger is provided with a first liquid inlet port C1 and a liquid outlet port C2. The first liquid inlet port C1 is connected to the first liquid outlet port A1 through a pipeline, and the liquid outlet port C2 is connected to the first liquid inlet port A3 through a pipeline.

3. The vehicle thermal management system according to claim 2, characterized in that, The first liquid inlet port B1 and the first liquid inlet port C1 are respectively connected to the output end of the first control valve (102) through pipelines, and the input end of the first control valve (102) is connected to the first liquid outlet port A1 through pipelines. The flow rate of cold fluid delivered to the engine heat exchanger and the power battery heat exchanger is adjusted by adjusting the opening of the first control valve (102).

4. The vehicle thermal management system according to claim 2 or 3, characterized in that, The power battery heat exchanger is also provided with a second liquid inlet port B3 and a second liquid outlet port B4; The second inlet port B3 is connected to the second output end of the first multi-way valve (104) through a pipeline, and the second input end of the first multi-way valve (104) is connected to the second outlet port A2 through a pipeline. The first inlet port B1 is connected to the first output end of the first multi-way valve (104) through a pipeline, and the first input end of the first multi-way valve (104) is connected to the first outlet port A1 through a pipeline. The second outlet port B4 is connected to the second inlet port A4 via a pipeline; By controlling the first multi-way valve (104), the flow paths of the second liquid outlet port A2 and the second liquid inlet port B3 can be connected and the flow paths of the first liquid outlet port A1 and the first liquid inlet port B1 can be blocked, or the flow paths of the second liquid outlet port A2 and the second liquid inlet port B3 can be blocked and the flow paths of the first liquid outlet port A1 and the first liquid inlet port B1 can be connected.

5. The vehicle thermal management system according to claim 2, characterized in that, The first solid-state cartridge cooling and heating unit includes a first solid-state cartridge cooling and heating device and a second solid-state cartridge cooling and heating device. The first solid-state cartridge cooling and heating device is provided with a first liquid outlet port A. 11 and the first liquid inlet port A 31 The first inlet port C1 is connected to the first outlet port A via a pipeline. 11 The first outlet port C2 is connected to the first inlet port A via a pipeline. 31 connect; The second solid-state cartridge cooling and heating device is provided with a first liquid outlet port A. 12 and the first liquid inlet port A 32 The first inlet port B1 is connected to the first outlet port A via a pipeline. 12 The first outlet port B2 is connected to the first inlet port A via a pipeline. 32 connect; The power battery heat exchanger is also provided with a third liquid inlet port B5, which is connected to the first liquid outlet port A via a pipeline. 11 connect; The engine heat exchanger is also provided with a third liquid inlet port C5, which is connected to the first liquid outlet port A via a pipeline. 12 connect.

6. The vehicle thermal management system according to claim 1, characterized in that, It also includes a second radiator, wherein the passenger compartment heat exchanger includes an air conditioning heat exchanger, a refrigerator heat exchanger and / or a seat heat exchanger; The second solid-state spring-loaded cooling and heating unit is also provided with a second liquid outlet port D2 and a second liquid inlet port D4; The second radiator is provided with an inlet port Y1 and an outlet port Y2. The inlet port Y1 is connected to the second outlet port D2 through a pipe, and the outlet port Y2 is connected to the second inlet port D4 through a pipe. The refrigerator heat exchanger is provided with a first liquid inlet port E1 and a first liquid outlet port E2. The first liquid inlet port E1 is connected to the first liquid outlet port D1 through a pipeline, and the first liquid outlet port E2 is connected to the first liquid inlet port D3 through a pipeline. The air conditioning heat exchanger is provided with a first liquid inlet port F1 and a liquid outlet port F2. The first liquid inlet port F1 is connected to the first liquid outlet port D1 through a pipeline, and the liquid outlet port F2 is connected to the first liquid inlet port D3 through a pipeline. The seat heat exchanger is provided with a first liquid inlet port G1 and a liquid outlet port G2. The first liquid inlet port G1 is connected to the first liquid outlet port D1 through a pipeline, and the liquid outlet port G2 is connected to the first liquid inlet port D3 through a pipeline.

7. The vehicle thermal management system according to claim 6, characterized in that, The refrigerator heat exchanger is also provided with a second liquid inlet port E3 and a second liquid outlet port E4; The second inlet port E3 is connected to the second output terminal of the second multi-way valve (106) through a pipeline, and the second input terminal of the second multi-way valve (106) is connected to the second outlet port D2 through a pipeline. The first inlet port E1 is connected to the first output end of the second multi-way valve (106) through a pipeline, and the first input end of the second multi-way valve (106) is connected to the first outlet port D1 through a pipeline. The second outlet port E4 is connected to the second inlet port D4 via a pipeline; By controlling the second multi-way valve (106), the flow path of the second liquid outlet port D2 and the second liquid inlet port E3 can be connected and the flow path of the first liquid outlet port D1 and the first liquid inlet port E1 can be blocked, or the flow path of the second liquid outlet port D2 and the second liquid inlet port E3 can be blocked and the flow path of the first liquid outlet port D1 and the first liquid inlet port E1 can be connected.

8. The vehicle thermal management system according to claim 6, characterized in that, The second solid-state cartridge cooling and heating unit includes a third solid-state cartridge cooling and heating device, a fourth solid-state cartridge cooling and heating device, and a fifth solid-state cartridge cooling and heating device; The third solid-state spring-loaded cooling and heating device is provided with a first liquid outlet port D. 11 and the first liquid inlet port D 31 The first inlet port F1 is connected to the first outlet port D via a pipeline. 11 The first outlet port F2 is connected to the first inlet port D via a pipeline. 31 connect; The fourth solid-state spring-loaded cooling and heating device is provided with a first liquid outlet port D. 12 and the first liquid inlet port D 32 The first inlet port E1 is connected to the first outlet port D via a pipeline. 12 The first outlet port E2 is connected to the first inlet port D via a pipeline. 32 connect; The fifth solid-state spring-loaded cooling and heating device is provided with a first liquid outlet port D. 13 and the first liquid inlet port D 33 The first inlet port G1 is connected to the first outlet port D via a pipeline. 13 The first outlet port G2 is connected to the first inlet port D via a pipeline. 33 connect.

9. The vehicle thermal management system according to claim 8, characterized in that, The refrigerator heat exchanger is also provided with a second liquid inlet port E3, which is connected to the first liquid outlet port D via a pipeline. 11 connect; The seat heat exchanger is also provided with a second liquid inlet port G3, which is connected to the first liquid outlet port D via a pipeline. 11 connect.

10. A vehicle, characterized in that, The vehicle thermal management system includes any one of claims 1 to 9, wherein the vehicle thermal management system is used for thermal management of the vehicle's power system and passenger compartment.

Images