Thermal management system and energy storage system

Abstract

This application discloses a thermal management system and an energy storage system, belonging to the field of thermal management for energy storage systems. The thermal management system includes: a heat exchange cycle, comprising a first path (drive pump, heat exchanger, and load flow path); and a heat exchange medium storage tank, with a first port selectively connected to the heat exchange cycle and a second port connected to the heat exchange cycle, and the heat exchange medium storage tank is equipped with a heater. According to the thermal management system of this application, by setting up a heat exchange medium storage tank, gas can be effectively collected and quickly discharged, improving exhaust efficiency. By setting up a heater in the heat exchange medium storage tank, the heat exchange medium can be heated, maintaining a suitable operating temperature for the load at low temperatures and reducing the risk of localized overheating of the heat exchange medium. By selectively connecting the first port of the heat exchange medium storage tank to the heat exchange cycle, the absorption of cold energy by the heat exchange medium in the heat exchange cycle by the heat exchange medium in the heat exchange medium storage tank can be reduced, reducing cold energy waste and heat dissipation delay, and reducing the flow resistance of the thermal management system and the energy consumption of the drive pump.

Description

Technical Field

[0001] This application belongs to the field of thermal management technology for energy storage systems, and particularly relates to a thermal management system and an energy storage system. Background Technology

[0002] In energy storage systems, energy storage devices in low-temperature environments typically require heaters to heat the heat exchange medium to ensure operation within a suitable temperature range. These systems often integrate the heaters directly into the piping of the thermal management system. However, the presence of the heater increases flow resistance in the thermal management system, leading to increased pump energy consumption and reduced overall system efficiency. Furthermore, the heater's location and structural limitations within the piping can cause localized overheating of the heat exchange medium.

[0003] In addition, the relevant energy storage system requires a long time to exhaust the heat exchange medium containing the doped gas, resulting in low exhaust efficiency. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the related art. To this end, this application proposes a thermal management system that can reduce the flow resistance of the thermal management system and improve the heat exchange efficiency of the thermal management system.

[0005] In a first aspect, this application provides a thermal management system, comprising: The heat exchange cycle includes the drive pump, the first path of the heat exchanger, and the load flow path; A heat exchange medium storage tank, wherein a first port of the heat exchange medium storage tank is selectively connected to the heat exchange cycle, a second port of the heat exchange medium storage tank is connected to the heat exchange cycle, and the heat exchange medium storage tank is equipped with a heater.

[0006] According to the thermal management system of this application, by setting up a heat exchange medium storage tank, the gas mixed in the heat exchange medium can be collected in the heat exchange medium storage tank and discharged. The exhaust operation is quick and efficient. By setting up a heater in the heat exchange medium storage tank, the heat exchange medium can be heated, allowing the energy storage device to maintain a suitable operating temperature in a low-temperature environment and reducing the risk of local heat exchange medium overheating. By setting the first port of the heat exchange medium storage tank to be selectively connected to the heat exchange cycle, when the load needs to dissipate heat, the heat exchange medium in the heat exchange medium storage tank can reduce the absorption of cold energy by the heat exchange medium in the heat exchange cycle, reducing cold energy waste and heat dissipation response time. At the same time, it can also reduce the flow resistance of the thermal management system and the energy consumption of the drive pump.

[0007] According to one embodiment of this application, the outlet of the drive pump is connected to the inlet of the first path of the heat exchanger, the outlet of the first path of the heat exchanger is connected to the inlet of the load flow path, the outlet of the load flow path is connected to the inlet of the drive pump, one of the outlet of the load flow path and the inlet of the drive pump is selectively connected to the first port of the heat exchange medium storage tank, and the other of the outlet of the load flow path and the inlet of the drive pump is connected to the second port of the heat exchange medium storage tank.

[0008] According to one embodiment of this application, the thermal management system further includes: a three-way valve, wherein a first valve port of the three-way valve is connected to the outlet of the load flow path, a second valve port of the three-way valve is connected to the inlet of the drive pump, a third valve port of the three-way valve is connected to the first port of the heat exchange medium storage tank, and the second port of the heat exchange medium storage tank is connected between the second valve port of the three-way valve and the inlet of the drive pump, or the second port of the heat exchange medium storage tank is connected between the first valve port of the three-way valve and the outlet of the load flow path.

[0009] According to one embodiment of this application, the three-way valve is a proportional valve, and the flow ratio between the second valve port and the third valve port of the three-way valve is adjustable, or the flow ratio between the first valve port and the third valve port of the three-way valve is adjustable.

[0010] According to one embodiment of this application, the thermal management system further includes: A first control valve is connected to the heat exchange cycle and is located between the connection point between the first port of the heat exchange medium storage tank and the heat exchange cycle and the connection point between the second port of the heat exchange medium storage tank and the heat exchange cycle. The second control valve is connected between the first port of the heat exchange medium storage tank and the connection point of the heat exchange cycle to the first port of the heat exchange medium storage tank.

[0011] According to one embodiment of this application, the heat exchange medium storage tank is provided with an exhaust valve.

[0012] According to one embodiment of this application, the thermal management system has an exhaust working mode, in which the heat exchange medium storage tank is connected in series with the heat exchange cycle, and the exhaust valve is opened.

[0013] According to one embodiment of this application, The thermal management system further includes a refrigerator, which is connected to the heat exchanger via a second connection. or, The second path of the heat exchanger is an air flow path, used to connect to the external environment.

[0014] According to one embodiment of this application, The thermal management system has a cooling mode. In the cooling mode, the first port of the heat exchange medium storage tank is disconnected from the heat exchange cycle, the heater is turned off, and the second path of the heat exchanger is used to cool the first path of the heat exchanger. And / or, The thermal management system has a heating mode. In the heating mode, the first port of the heat exchange medium storage tank is connected to the heat exchange circulation, the heater is turned on, and the second port of the heat exchanger is turned off.

[0015] Secondly, this application provides an energy storage system, comprising: Thermal management system as described in any of the above; An energy storage device, wherein the load flow path is used to exchange heat for the energy storage device.

[0016] According to the energy storage system provided in the embodiments of this application, by adopting the above-mentioned thermal management system, the gas doped in the heat exchange medium can be collected in the heat exchange medium storage tank and discharged. The exhaust operation is short and efficient. It can heat the heat exchange medium, allowing the energy storage device to maintain a suitable operating temperature in a low-temperature environment. It can also reduce the risk of local heat exchange medium temperature being too high. When the load needs to dissipate heat, the heat exchange medium in the heat exchange medium storage tank can reduce the absorption of cold energy of the heat exchange medium in the heat exchange cycle, reduce cold energy waste and heat dissipation response time, and at the same time reduce the flow resistance of the thermal management system and the energy consumption of the drive pump.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is one of the structural schematic diagrams of the thermal management system provided in the embodiments of this application; Figure 2 This is a second schematic diagram of the structure of the thermal management system provided in the embodiments of this application; Figure 3 This is the third schematic diagram of the thermal management system provided in the embodiments of this application; Figure 4 This is the fourth schematic diagram of the thermal management system provided in the embodiments of this application.

[0019] Figure label: Thermal Management System 100; Heat exchange medium storage tank 110, heater 111, exhaust valve 112; Drive pump 120, heat exchanger 130, three-way valve 140, first control valve 141, second control valve 142, refrigerator 150, load flow path 160. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] The following is for reference. Figures 1-4 This application describes an energy storage system and a thermal management system 100 according to embodiments thereof.

[0022] An energy storage system is an integrated system that converts electrical energy into other forms of energy, such as chemical energy, thermal energy, or mechanical energy, for storage, and releases it back into electrical energy when needed.

[0023] The energy storage system includes a thermal management system 100 and energy storage devices. In addition, the energy storage system may also include an energy conversion and control system, safety protection devices, and monitoring and communication modules.

[0024] A thermal management system 100 refers to a system that uses active or passive control methods, such as cooling, heating, or insulation, to transfer, distribute, and dissipate heat inside and around an energy storage device in order to maintain the operating temperature of the energy storage device within a safe and efficient range.

[0025] Energy storage devices are physical devices that store input energy in a specific medium through physical mechanisms such as electrochemical, mechanical, or electromagnetic methods, and release it when needed.

[0026] The energy storage device includes a load, which is the object in the thermal management system 100 that requires heat exchange.

[0027] In the energy storage device, the load flow path 160 is used for heat exchange in the energy storage device. In other words, the load flow path 160 has a heat exchange function and can exchange or heat the energy storage device.

[0028] This application also provides a thermal management system 100.

[0029] like Figures 1-4 As shown, the thermal management system 100 includes a heat exchange cycle and a heat exchange medium storage tank 110.

[0030] The heat exchange cycle is a closed loop in the thermal management system 100 that enables heat transfer. It can transfer the heat generated by the energy storage device to the outside world through the flowing heat exchange medium, or transfer the heat generated by the outside world to the energy storage device.

[0031] The heat exchange medium can be deionized water, ethylene glycol aqueous solution, or brine, etc.

[0032] like Figures 1-4 As shown, the heat exchange cycle includes a drive pump 120, a first path of a heat exchanger 130, and a load flow path 160.

[0033] The drive pump 120 is a centrifugal or positive displacement fluid transport device that applies kinetic energy to a fluid through impeller rotation, converting its mechanical energy into fluid pressure energy. The drive pump 120 can overcome pipeline resistance, such as friction loss and valve pressure drop, to provide flow power for the heat exchange medium and maintain the flow rate of the heat exchange medium in the heat exchange cycle.

[0034] Heat exchanger 130 is a dual-path heat exchanger with a first path and a second path, and the two paths can be isolated for heat exchange.

[0035] When the heat exchange medium flows through the first path of the heat exchanger 130, it can absorb the coldness of the medium in the second path of the heat exchanger 130 and transfer the heat to the medium in the second path of the heat exchanger 130.

[0036] When the heat exchange medium flows through the load flow path 160, it can absorb the cold or heat of the load and transfer the heat or cold to the load, causing the load temperature to decrease or increase, thereby enabling the energy storage device to operate within a suitable temperature range.

[0037] In the heat exchange cycle, the drive pump 120 drives the heat exchange medium to flow. When the heat exchange medium flows through the first path of the heat exchanger 130, it absorbs the cold energy of the medium in the second path of the heat exchanger 130 and cools down. When the heat exchange medium flows through the load flow path 160, it absorbs the heat of the load and heats up.

[0038] The heat exchange medium storage tank 110 is a liquid storage container. For example, when the heat exchange medium is deionized water, the heat exchange medium storage tank 110 can be a water tank.

[0039] The heat exchange medium storage tank 110 provides space to accommodate volume changes in the heat exchange medium caused by temperature variations, reducing the risk of excessively high or low pipeline pressure. Simultaneously, the heat exchange medium storage tank 110 can replenish the heat exchange medium for the heat exchange cycle.

[0040] In addition, when the heat exchange medium containing the gas flows through the heat exchange medium storage tank 110, because the gas density is lower than that of the liquid, the bubbles will naturally rise to the top space of the heat exchange medium storage tank 110, thereby separating the heat exchange medium and the gas within the heat exchange medium storage tank 110.

[0041] By ensuring the flow path of the heat exchange medium in the thermal management system 100 is open, gas can be retained in the heat exchange medium storage tank 110. Discharging the gas from the heat exchange medium storage tank 110 completes the venting operation of the thermal management system 100. During almost one complete cycle of heat exchange medium flow, the vast majority of gas can be retained in the heat exchange medium storage tank 110. This method of venting from the heat exchange medium storage tank 110 is time-efficient and highly effective.

[0042] The heat exchange medium storage tank 110 has a first port and a second port.

[0043] The first port and the second port of the heat exchange medium storage tank 110 can be at least one of the following: Firstly, such as Figure 1 and Figure 3 As shown, the first port of the heat exchange medium storage tank 110 is the inlet, and the first port of the heat exchange medium storage tank 110 is the outlet.

[0044] like Figure 1 and Figure 3 As shown, the first port of the heat exchange medium storage tank 110 is selectively connected to the heat exchange cycle, and the second port of the heat exchange medium storage tank 110 is connected to the heat exchange cycle.

[0045] Specifically, a flow path switching device exists between the first port of the heat exchange medium storage tank 110 and the heat exchange circulation pipeline, allowing the heat exchange medium storage tank 110 to be connected to or disconnected from the heat exchange circulation. When the flow path switching device connects the first port of the heat exchange medium storage tank 110 to the heat exchange circulation, the heat exchange medium in the heat exchange circulation can flow into the first port of the heat exchange medium storage tank 110 and flow out through the second port of the heat exchange medium storage tank 110 and merge back into the heat exchange circulation; when the flow path switching device does not connect the first port of the heat exchange medium storage tank 110 to the heat exchange circulation, the heat exchange circulation operates independently, the heat exchange medium in the heat exchange circulation does not flow into the first port of the heat exchange medium storage tank 110, and the heat exchange medium storage tank 110 can replenish liquid and maintain pressure for the heat exchange circulation through the second port of the heat exchange medium storage tank 110.

[0046] Secondly, such as Figure 2 and Figure 4 As shown, the first port of the heat exchange medium storage tank 110 is the outlet, and the first port of the heat exchange medium storage tank 110 is the inlet.

[0047] like Figure 2 and Figure 4 As shown, the first port of the heat exchange medium storage tank 110 is selectively connected to the heat exchange cycle, and the second port of the heat exchange medium storage tank 110 is connected to the heat exchange cycle.

[0048] Specifically, a flow path switching device exists between the first port of the heat exchange medium storage tank 110 and the heat exchange circulation pipeline, allowing the heat exchange medium storage tank 110 to be connected to or disconnected from the heat exchange circulation. When the flow path switching device connects the first port of the heat exchange medium storage tank 110 to the heat exchange circulation, the heat exchange medium in the heat exchange circulation can flow into the second port of the heat exchange medium storage tank 110, and then flow out through the first port of the heat exchange medium storage tank 110 and merge back into the heat exchange circulation. When the flow path switching device does not connect the first port of the heat exchange medium storage tank 110 to the heat exchange circulation, the heat exchange circulation operates independently, no heat exchange medium flows out of the first port of the heat exchange medium storage tank 110, and the heat exchange medium storage tank 110 can replenish liquid and maintain pressure for the heat exchange circulation through the second port of the heat exchange medium storage tank 110.

[0049] like Figure 1 and Figure 3 As shown, the heat exchange medium storage tank 110 is equipped with a heater 111.

[0050] Heater 111 is a heating element that can heat the heat exchange medium in the heat exchange medium storage tank 110. Heater 111 can be an electric heating tube or an electromagnetic induction heater, etc.

[0051] When the ambient temperature is low and the load requires heating, the heater 111 can heat the heat exchange medium in the heat exchange medium storage tank 110, and the flow path switching device can connect the first port of the heat exchange medium storage tank 110 with the heat exchange cycle. In this way, the heat exchange medium in the heat exchange cycle can flow into the heat exchange medium storage tank 110 and be heated by the heater 111. The high-temperature heat exchange medium in the heat exchange medium storage tank 110 can flow into the heat exchange cycle and transfer heat to the load flow path 160, thereby enabling the energy storage device to maintain a suitable operating temperature in low-temperature environments.

[0052] In related technologies, the heat exchange medium storage tank is directly connected in series in the heat exchange circulation loop, and the heat exchange medium needs to flow through the heat exchange medium storage tank to complete the heat exchange cycle. When the load requires heat dissipation, the flow of the heat exchange medium through the heat exchange medium storage tank will cause unnecessary cold loss and response lag, and will also increase the flow resistance of the thermal management system, requiring the drive pump to consume more energy to maintain the medium circulation.

[0053] The heat exchange medium storage tank 110 provided in this embodiment can be selectively connected to the heat exchange cycle through its first port. When the ambient temperature is low and the load requires heating, the first port of the heat exchange medium storage tank 110 can be connected to the heat exchange cycle, allowing the heat exchange medium from the heat exchange cycle to flow into the heat exchange medium storage tank 110 and be heated by the heater 111. When the load requires heat dissipation, the connection between the first port of the heat exchange medium storage tank 110 and the heat exchange cycle can be disconnected. The heat exchange medium storage tank 110 can then perform liquid replenishment and pressure maintenance only through its second port, reducing the absorption of cold energy by the heat exchange medium in the heat exchange cycle by the heat exchange medium in the heat exchange medium storage tank 110, thus reducing cold energy waste and heat dissipation response time. This also reduces the flow resistance of the thermal management system 100 and the energy consumption of the drive pump 120.

[0054] The working principle of the thermal management system 100 provided in this application embodiment is as follows: When the load needs to dissipate heat, the drive pump 120 drives the heat exchange medium to flow. When the heat exchange medium flows through the first path of the heat exchanger 130, it absorbs the cold energy of the medium in the second path of the heat exchanger 130 and cools down. When the heat exchange medium flows through the load flow path 160, it absorbs the heat of the load and heats up. The flow path switching device does not connect the first port of the heat exchange medium storage tank 110 with the heat exchange cycle. The heat exchange medium storage tank 110 can replenish the heat exchange cycle and maintain pressure through the second port of the heat exchange medium storage tank 110.

[0055] When the load needs to be heated, such as in a low-temperature environment, the drive pump 120 drives the heat exchange medium to flow. When the heat exchange medium flows through the load flow path 160, it absorbs the cold energy of the load and cools down. The flow path switching device connects the first port of the heat exchange medium storage tank 110 with the heat exchange cycle. The heat exchange medium flows into the heat exchange medium storage tank 110 and is heated by the heater 111.

[0056] When the thermal management system 100 exhausts gas, the drive pump 120 drives the heat exchange medium containing the doped gas to flow. The flow path switching device connects the first port of the heat exchange medium storage tank 110 with the heat exchange cycle. The heat exchange medium containing the doped gas flows into the heat exchange medium storage tank 110. The gas automatically floats up and gathers at the top of the heat exchange medium storage tank 110. The gas gathered at the top of the heat exchange medium storage tank 110 is discharged from the heat exchange medium storage tank 110.

[0057] According to the thermal management system 100 provided in the embodiments of this application, by setting a heat exchange medium storage tank 110, the gas doped in the heat exchange medium can be collected in the heat exchange medium storage tank 110 and discharged. The exhaust work is time-saving and efficient. By setting a heater 111 in the heat exchange medium storage tank 110, the heat exchange medium can be heated, so that the energy storage device can maintain a suitable operating temperature in a low-temperature environment and reduce the risk of local heat exchange medium temperature being too high. By setting the first port of the heat exchange medium storage tank 110 to be selectively connected to the heat exchange cycle, the heat exchange medium in the heat exchange medium storage tank 110 can be prevented from absorbing the cold energy of the heat exchange medium in the heat exchange cycle when the load needs to dissipate heat, reducing cold energy waste and heat dissipation response time. At the same time, it can also reduce the flow resistance of the thermal management system 100 and the energy consumption of the drive pump 120.

[0058] Correspondingly, according to the energy storage system provided in the embodiments of this application, by adopting the above-mentioned thermal management system 100, the gas doped in the heat exchange medium can be collected in the heat exchange medium storage tank 110 and discharged. The exhaust operation is short and efficient. It can heat the heat exchange medium, allowing the energy storage device to maintain a suitable operating temperature in a low-temperature environment. It can also reduce the risk of local heat exchange medium temperature being too high. When the load needs to dissipate heat, it can reduce the absorption of cold energy by the heat exchange medium in the heat exchange cycle by the heat exchange medium in the heat exchange medium storage tank 110, reduce cold energy waste and heat dissipation response time, and at the same time reduce the flow resistance of the thermal management system 100 and the energy consumption of the drive pump 120.

[0059] In some embodiments, such as Figures 1-4 As shown, the outlet of the drive pump 120 is connected to the inlet of the first path of the heat exchanger 130, the outlet of the first path of the heat exchanger 130 is connected to the inlet of the load flow path 160, and the outlet of the load flow path 160 is connected to the inlet of the drive pump 120.

[0060] In other words, the first path of the drive pump 120 and heat exchanger 130 can be connected to the load flow path 160 in sequence.

[0061] In this way, the drive pump 120 pushes the heat exchange medium to flow. The heat exchange medium enters the first path of the heat exchanger 130, then flows into the load flow path 160, and then flows into the drive pump 120.

[0062] Of course, the position of the drive pump 120 in the heat exchange cycle is not limited.

[0063] One of the outlets of the load flow path 160 and the inlet of the drive pump 120 can be selectively connected to the first port of the heat exchange medium storage tank 110, and the other of the outlets of the load flow path 160 and the inlet of the drive pump 120 can be connected to the second port of the heat exchange medium storage tank 110.

[0064] The connection between the first port and the second port of the heat exchange medium storage tank 110 is in at least one of the following situations: Firstly, such as Figure 1 and Figure 3 As shown, the outlet of the load flow path 160 can be selectively connected to the first port of the heat exchange medium storage tank 110, and the inlet of the drive pump 120 is connected to the second port of the heat exchange medium storage tank 110.

[0065] When the outlet of the load flow path 160 is connected to the first port of the heat exchange medium storage tank 110, the drive pump 120, the first path of the heat exchanger 130, the load flow path 160, and the heat exchange medium storage tank 110 can be connected sequentially. In this way, the drive pump 120 pushes the heat exchange medium to flow, and the heat exchange medium flows into the first path of the heat exchanger 130, then into the load flow path 160, then into the heat exchange medium storage tank 110, and then into the drive pump 120.

[0066] Secondly, such as Figure 2 and Figure 4 As shown, the inlet of the drive pump 120 can be selectively connected to the first port of the heat exchange medium storage tank 110, and the outlet of the load flow path 160 is connected to the second port of the heat exchange medium storage tank 110.

[0067] When the inlet of the drive pump 120 is connected to the first port of the heat exchange medium storage tank 110, the drive pump 120, the first path of the heat exchanger 130, the load flow path 160, and the heat exchange medium storage tank 110 can be connected sequentially. In this way, the drive pump 120 pushes the heat exchange medium to flow, and the heat exchange medium flows into the first path of the heat exchanger 130, then into the load flow path 160, then into the heat exchange medium storage tank 110, and then into the drive pump 120.

[0068] In this embodiment, the flow path switching device can be at least one of the following structural forms: First, the flow path switching device is a three-way valve 140.

[0069] In this embodiment, such as Figure 1 and Figure 2 As shown, the thermal management system 100 may include a three-way valve 140.

[0070] Three-way valves can be solenoid valves, manual valves such as ball valves or gate valves, electric valves or pneumatic valves, etc.

[0071] The three-way valve 140 has three valve ports: a first valve port, a second valve port, and a third valve port.

[0072] The connection configuration of the three-way valve and the heat exchange medium storage tank 110 is at least one of the following: Firstly, such as Figure 1As shown, the first port of the three-way valve 140 is connected to the outlet of the load flow path 160, the second port of the three-way valve 140 is connected to the inlet of the drive pump 120, and the third port of the three-way valve 140 is connected to the first port of the heat exchange medium storage tank 110. The first port and the third port of the three-way valve 140 can be selectively connected. The second port of the heat exchange medium storage tank 110 is connected between the second port of the three-way valve 140 and the inlet of the drive pump 120.

[0073] In this embodiment, the first port of the three-way valve 140 is the inlet of the three-way valve 140, which can receive the heat exchange medium from the load flow path 160. The second port of the three-way valve 140 is the outlet of the three-way valve 140, which, when connected, can guide the heat exchange medium to the drive pump 120. The third port of the three-way valve 140 is the outlet of the three-way valve 140, which, when connected, can guide the heat exchange medium to the first port of the heat exchange medium storage tank 110.

[0074] The first port of the three-way valve 140 and the third port of the three-way valve 140 may or may not be connected.

[0075] When the first valve port of the three-way valve 140 is connected to the third valve port of the three-way valve 140, the heat exchange medium from the load flow path 160 flows into the first valve port of the three-way valve 140 and can flow into the heat exchange medium storage tank 110 through the third valve port of the three-way valve 140; or, the heat exchange medium from the load flow path 160 flows into the first valve port of the three-way valve 140, a part of which can flow into the heat exchange medium storage tank 110 through the third valve port of the three-way valve 140, and another part of which can flow into the drive pump 120 through the second valve port of the three-way valve 140.

[0076] When the first valve port of the three-way valve 140 is not connected to the third valve port of the three-way valve 140, the heat exchange medium from the load flow path 160 flows into the first valve port of the three-way valve 140 and can flow into the drive pump 120 through the second valve port of the three-way valve 140.

[0077] The first port of the heat exchange medium storage tank 110 is the inlet, and the second port of the heat exchange medium storage tank 110 is the outlet.

[0078] like Figure 1 As shown, the second port of the heat exchange medium storage tank 110 is connected between the second valve port of the three-way valve 140 and the inlet of the drive pump 120. Thus, when the first valve port of the three-way valve 140 is connected to the third valve port of the three-way valve 140, the heat exchange medium of the heat exchange cycle can flow into the first port of the heat exchange medium storage tank 110 through the three-way valve 140, and the heat exchange medium in the heat exchange medium storage tank 110 flows into the heat exchange cycle through the second port of the heat exchange medium storage tank 110.

[0079] In some embodiments, the three-way valve 140 can be a switching valve. That is, the first valve port of the three-way valve 140 is connected to the second valve port but not to the third valve port, or the first valve port of the three-way valve 140 is connected to the third valve port but not to the second valve port. In this way, the heat exchange medium from the load flow path 160 flows into the first valve port of the three-way valve 140, and then flows into the drive pump 120 through the second valve port of the three-way valve 140, or flows into the heat exchange medium storage tank 110 through the third valve port of the three-way valve 140.

[0080] In some embodiments, the three-way valve 140 can be a proportional valve. That is, the flow ratio between the second and third ports of the three-way valve 140 is adjustable. In other words, after the heat exchange medium from the load flow path 160 flows into the first port of the three-way valve 140, it can flow into the drive pump 120 through the second port of the three-way valve 140 or into the heat exchange medium storage tank 110 through the third port of the three-way valve 140 in an appropriate ratio. For example, when the heating demand of the load is large, the proportion of heat exchange medium flowing to the third port of the three-way valve 140 can be increased, so that more heat exchange medium is heated in the heat exchange medium storage tank 110; when the heating demand of the load is small, the proportion of heat exchange medium flowing to the third port of the three-way valve 140 can be decreased, so that less heat exchange medium is heated in the heat exchange medium storage tank 110.

[0081] Secondly, such as Figure 2 As shown, the first valve port of the three-way valve 140 is connected to the outlet of the load flow path 160, the second valve port of the three-way valve 140 is connected to the inlet of the drive pump 120, and the third valve port of the three-way valve 140 is connected to the first port of the heat exchange medium storage tank 110. The second valve port and the third valve port of the three-way valve 140 can be selectively connected. The second port of the heat exchange medium storage tank 110 is connected between the first valve port of the three-way valve 140 and the outlet of the load flow path 160.

[0082] In this embodiment, the first port of the three-way valve 140 is the inlet of the three-way valve 140, which can receive the heat exchange medium from the load flow path 160. The second port of the three-way valve 140 is the outlet of the three-way valve 140, which can guide the heat exchange medium to the drive pump 120 when connected. The third port of the three-way valve 140 is the inlet of the three-way valve 140, which can receive the heat exchange medium from the heat exchange medium storage tank 110 when connected.

[0083] The second valve port of the three-way valve 140 may or may not be connected to the third valve port of the three-way valve 140.

[0084] When the second port of the three-way valve 140 is connected to the third port of the three-way valve 140, the heat exchange medium in the heat exchange medium storage tank 110 can flow into the heat exchange cycle through the first port of the heat exchange medium storage tank 110.

[0085] When the second valve port of the three-way valve 140 is not connected to the third valve port of the three-way valve 140, the heat exchange medium flowing into the drive pump 120 through the second valve port of the three-way valve 140 is entirely from the heat exchange medium in the load flow path 160.

[0086] The first port of the heat exchange medium storage tank 110 is the outlet, and the second port of the heat exchange medium storage tank 110 is the inlet.

[0087] like Figure 2 As shown, the second port of the heat exchange medium storage tank 110 is connected between the first port of the three-way valve 140 and the outlet of the load flow path 160. Thus, when the second port of the three-way valve 140 is connected to the third port of the three-way valve 140, the heat exchange medium of the heat exchange cycle can flow into the second port of the heat exchange medium storage tank 110, while the heat exchange medium in the heat exchange medium storage tank 110 flows into the heat exchange cycle from the first port of the heat exchange medium storage tank 110 through the third port of the three-way valve 140.

[0088] In some embodiments, the three-way valve 140 can be a switching valve. That is, the second valve port of the three-way valve 140 is connected to the first valve port but not to the third valve port, or the second valve port of the three-way valve 140 is connected to the third valve port but not to the first valve port. In this way, the heat exchange medium from the load flow path 160 flows into the first valve port of the three-way valve 140 and then flows into the drive pump 120 through the second valve port of the three-way valve 140, or the heat exchange medium from the heat exchange medium storage tank 110 flows into the third valve port of the three-way valve 140 and then flows into the drive pump 120 through the second valve port of the three-way valve 140.

[0089] In some embodiments, the three-way valve 140 can be a proportional valve. That is, the flow ratio between the first port and the third port of the three-way valve 140 is adjustable. In other words, the heat exchange medium from the load flow path 160 and the heat exchange medium from the heat exchange medium storage tank 110 can flow into the first port and the third port of the three-way valve 140 respectively in an appropriate ratio, and then flow out of the third port of the three-way valve 140. For example, when the heating demand of the load is large, the proportion of heat exchange medium flowing into the third port of the three-way valve 140 from the heat exchange medium storage tank 110 can be increased, so that more heated heat exchange medium flows out of the heat exchange medium storage tank 110; when the heating demand of the load is small, the proportion of heat exchange medium flowing into the third port of the three-way valve 140 from the heat exchange medium storage tank 110 can be decreased, so that less heated heat exchange medium flows out of the heat exchange medium storage tank 110.

[0090] Second, the flow path switching device consists of two independent control valves.

[0091] In this embodiment, such as Figure 3 and Figure 4 As shown, the thermal management system 100 includes a first control valve 141 and a second control valve 142.

[0092] The first control valve 141 and the second control valve 142 are both valves with two valve ports, and can be solenoid valves, manual valves such as ball valves or gate valves, electric valves or pneumatic valves, etc.

[0093] The connection configurations of the first control valve 141, the second control valve 142, and the heat exchange medium storage tank 110 are at least one of the following: Firstly, a first control valve 141 is connected to the heat exchange cycle and is located between the connection point of the first port of the heat exchange medium storage tank 110 and the heat exchange cycle, and between the connection point of the second port of the heat exchange medium storage tank 110 and the heat exchange cycle. A second control valve 142 is connected between the connection point of the first port of the heat exchange medium storage tank 110 and the first port of the heat exchange medium storage tank 110. The inlet and outlet of the second control valve 142 are selectively connected. The first port of the heat exchange medium storage tank 110 is connected to the outlet of the second control valve 142, and the second port of the heat exchange medium storage tank 110 is connected between the outlet of the first control valve 141 and the inlet of the drive pump 120.

[0094] In this embodiment, the first control valve 141 is capable of receiving heat exchange medium from the load flow path 160 and directing the heat exchange medium to the drive pump 120.

[0095] The second control valve 142 can receive the heat exchange medium from the load flow path 160 and guide the heat exchange medium to the heat exchange medium storage tank 110.

[0096] The inlet and outlet of the second control valve 142 can be selectively connected.

[0097] When the inlet and outlet of the second control valve 142 are connected, the heat exchange medium of the heat exchange cycle can flow part or all of it to the heat exchange medium storage tank 110.

[0098] When the inlet and outlet of the second control valve 142 are not connected, the heat exchange medium in the heat exchange cycle continues to flow in the heat exchange cycle.

[0099] The first port of the heat exchange medium storage tank 110 is the inlet, and the second port of the heat exchange medium storage tank 110 is the outlet.

[0100] like Figure 3 As shown, the first port of the heat exchange medium storage tank 110 is connected to the outlet of the second control valve 142, and the second port of the heat exchange medium storage tank 110 is connected between the outlet of the first control valve 141 and the inlet of the drive pump 120. Thus, when the inlet and outlet of the second control valve 142 are connected, the heat exchange medium of the heat exchange cycle can flow into the first port of the heat exchange medium storage tank 110 through the second control valve 142, and the heat exchange medium in the heat exchange medium storage tank 110 flows into the heat exchange cycle through the second port of the heat exchange medium storage tank 110.

[0101] In some embodiments, the first control valve 141 and the second control valve 142 can be on / off control valves. That is, the first control valve 141 and the second control valve 142 only have on / off functions.

[0102] In some embodiments, the first control valve 141 and the second control valve 142 can be regulating control valves. In this way, the flow ratio of the heat exchange medium flowing out of the first control valve 141 and the flow ratio of the heat exchange medium flowing out of the second control valve 142 can be adjusted.

[0103] Secondly, the first control valve 141 is connected to the heat exchange cycle and is located between the connection point of the first port of the heat exchange medium storage tank 110 and the heat exchange cycle, and between the connection point of the second port of the heat exchange medium storage tank 110 and the heat exchange cycle. The second control valve 142 is connected between the connection point of the first port of the heat exchange medium storage tank 110 and the heat exchange cycle, and between the first port of the heat exchange medium storage tank 110 and the first port of the heat exchange medium storage tank 110. The inlet and outlet of the second control valve 142 can be selectively connected. The first port of the heat exchange medium storage tank 110 is connected to the inlet of the second control valve 142, and the second port of the heat exchange medium storage tank 110 is connected between the inlet of the first control valve 141 and the outlet of the load flow path 160.

[0104] In this embodiment, the first control valve 141 is capable of receiving heat exchange medium from the load flow path 160 and directing the heat exchange medium to the drive pump 120.

[0105] The second control valve 142 can receive heat exchange medium from the heat exchange medium storage tank 110 and direct the heat exchange medium to the drive pump 120.

[0106] The inlet and outlet of the second control valve 142 can be selectively connected.

[0107] When the inlet and outlet of the second control valve 142 are connected, the heat exchange medium in the heat exchange medium storage tank 110 can flow into the heat exchange cycle.

[0108] When the inlet and outlet of the second control valve 142 are not connected, the heat exchange medium storage tank 110 can replenish water and maintain pressure for the heat exchange circulation through the second port of the heat exchange medium storage tank 110.

[0109] The first port of the heat exchange medium storage tank 110 is the outlet, and the second port of the heat exchange medium storage tank 110 is the inlet.

[0110] like Figure 3As shown, the first port of the heat exchange medium storage tank 110 is connected to the inlet of the second control valve 142, and the second port of the heat exchange medium storage tank 110 is connected between the inlet of the first control valve 141 and the outlet of the load flow path 160. Thus, when the inlet and outlet of the second control valve 142 are connected, the heat exchange medium of the heat exchange cycle can flow into the second port of the heat exchange medium storage tank 110, while the heat exchange medium in the heat exchange medium storage tank 110 flows into the heat exchange cycle through the first port of the heat exchange medium storage tank 110 and the second control valve 142.

[0111] In some embodiments, the first control valve 141 and the second control valve 142 can be on / off control valves. That is, the first control valve 141 and the second control valve 142 only have on / off functions.

[0112] In some embodiments, the first control valve 141 and the second control valve 142 can be regulating control valves. In this way, the flow ratio of the heat exchange medium flowing out of the first control valve 141 and the flow ratio of the heat exchange medium flowing out of the second control valve 142 can be adjusted.

[0113] In some embodiments, such as Figures 1-4 As shown, the heat exchange medium storage tank 110 is equipped with an exhaust valve 112.

[0114] The exhaust valve 112 is a gas emission device.

[0115] The vent valve 112 can be installed on the top of the heat exchange medium storage tank 110. In this way, the gas floating in the heat exchange medium storage tank 110 can be discharged from the top of the vent valve 112, and the risk of accidental discharge of heat exchange medium can be reduced.

[0116] The exhaust valve 112 can be a mechanically openable valve, which opens the exhaust channel when the gas pressure in the heat exchange medium storage tank 110 reaches the opening threshold.

[0117] The exhaust valve 112 can also be an electrically operated valve, which opens the exhaust passage via a control system command.

[0118] In some embodiments, the thermal management system 100 has an exhaust operation mode.

[0119] When the thermal management system 100 needs to discharge gas from the pipeline of the thermal management system 110 during commissioning, repair fluid maintenance, or periodic venting operations, the thermal management system 100 enters the venting mode.

[0120] In exhaust operation mode, the heat exchange medium storage tank 110 is connected in series with the heat exchange cycle.

[0121] In other words, during exhaust operation, the first valve and the second valve of the three-way valve 140 can be disconnected, or the inlet and outlet of the first control valve 141 can be disconnected. Thus, the other flow paths in the heat exchange cycle—namely, the first path of the drive pump 120, the heat exchanger 130, and the load flow path 160—are connected in series with the heat exchange medium storage tank 110. The heat exchange medium containing the doped gas flows between the drive pump 120, the first path of the heat exchanger 130, the load flow path 160, and the heat exchange medium storage tank 110. When the heat exchange medium containing the doped gas flows through the heat exchange medium storage tank 110, the gas rises to the top of the heat exchange medium storage tank 110, thereby separating from the heat exchange medium.

[0122] In exhaust mode, exhaust valve 112 is open.

[0123] In exhaust mode, gas accumulates at the top of the heat exchange medium storage tank 110, and the gas is discharged from the heat exchange medium storage tank 110 to the thermal management system 100 through the exhaust valve 112.

[0124] The working principle of the thermal management system 100 provided in this embodiment in exhaust mode is as follows: The drive pump 120, the first path of the heat exchanger 130, the load flow path 160, and the heat exchange medium storage tank 110 are connected in series. The drive pump 120 drives the heat exchange medium containing the doped gas to flow, allowing it to flow into the heat exchange medium storage tank 110 through the first path of the heat exchanger 130 and the load flow path 160. In the heat exchange medium storage tank 110, the gas automatically rises and accumulates at the top, and the gas at the top of the heat exchange medium storage tank 110 is discharged through the exhaust valve 112.

[0125] In this embodiment, the second connection of the heat exchanger 130 can be at least one of the following: Firstly, the second path of the heat exchanger 130 is connected to the refrigerator 150.

[0126] In this embodiment, such as Figures 1-4 As shown, the thermal management system 100 includes a cooler 150.

[0127] The cooler 150 is a device in the thermal management system 100 used for actively removing heat.

[0128] like Figures 1-4 As shown, the refrigerator 150 is connected to the heat exchanger 130 via a second connection.

[0129] The refrigeration unit 150 can be a compressor cycle, which includes a second path of the heat exchanger 130. The cooling capacity can be transferred from the second path of the heat exchanger 130 to the first path of the heat exchanger 130 by means of the compressor driving the refrigerant to circulate.

[0130] The cooler 150 can also be other types of refrigeration elements, such as magnetic refrigeration elements or thermoelectric refrigeration elements.

[0131] The cooling effect is better when the second path of the heat exchanger 130 is connected to the refrigerator 150.

[0132] Secondly, the second path of heat exchanger 130 is connected to the outside air.

[0133] In this embodiment, the heat exchanger 130 is a wind-liquid heat exchanger.

[0134] The first path of the heat exchanger 130 is the heat exchange medium flow path, and the second path of the heat exchanger 130 is the air flow path, which is used to connect to the external environment.

[0135] The cooling capacity of the air in the second path of heat exchanger 130 can be transferred to the heat exchange medium in the first path of heat exchanger 130. This process can be achieved using cooling methods such as condenser fan, natural convection, or ambient airflow.

[0136] The cooling cost is lower when the second path of the heat exchanger 130 is connected to the outside air.

[0137] In some embodiments, the thermal management system 100 has a cooling operating mode.

[0138] When the load requires heat dissipation, the thermal management system 100 enters the cooling mode.

[0139] In the cooling mode, the first port of the heat exchange medium storage tank 110 is disconnected from the heat exchange cycle, the heater 111 is turned off, and the second path of the heat exchanger 130 is used to cool the first path of the heat exchanger 130.

[0140] In the cooling mode, the heat exchange medium storage tank 110 is not connected in series to the heat exchange cycle, and the heat exchange cycle is replenished and pressure is maintained only through the second port of the heat exchange medium storage tank 110.

[0141] In the cooling operation mode, the thermal management system 100 provided in this embodiment: The first path of the drive pump 120 and the heat exchanger 130 is connected in series with the load flow path 160. The first port of the heat exchange medium storage tank 110 is not connected to the heat exchange cycle, and the second port of the heat exchange medium storage tank 110 is connected to the heat exchange cycle. The heater 111 is turned off, and the second path of the heat exchanger 130 is used to cool the first path of the heat exchanger 130.

[0142] The drive pump 120 drives the heat exchange medium to flow. When the heat exchange medium flows through the first path of the heat exchanger 130, it absorbs the cold energy of the refrigerant or air in the second path of the heat exchanger 130 and cools down. When the heat exchange medium flows through the load path 160, it absorbs the heat of the load and heats up. The heat exchange medium then flows into the drive pump 120, thus completing the heat exchange cycle. The heat exchange medium storage tank 110 can replenish the liquid and maintain the pressure of the heat exchange cycle through its second port.

[0143] The thermal management system 100 has a heating operation mode.

[0144] When the load requires heat absorption, such as in a low-temperature environment, the thermal management system 100 enters the heating mode.

[0145] In heating mode, the first port of the heat exchange medium storage tank 110 is connected to the heat exchange cycle, the heater 111 is turned on, and the second port of the heat exchanger 130 is turned off.

[0146] In the heating mode, the heat exchange medium storage tank 110 can be connected in parallel or in series to the heat exchange cycle.

[0147] In the heating operation mode, the thermal management system 100 provided in this embodiment: The first path of the drive pump 120 and heat exchanger 130, the load flow path 160 and the heat exchange medium storage tank 110 are connected in series. The first path of the drive pump 120 and heat exchanger 130 and the load flow path 160 are connected in series, and the heat exchange medium storage tank 110 is connected in parallel between the inlet of the drive pump 120 and the outlet of the load flow path 160. The heater 111 is turned on and the second path of the heat exchanger 130 is turned off.

[0148] The drive pump 120 drives the heat exchange medium to flow. The heat exchange medium flows through the first path of the heat exchanger 130 but does not absorb the cold energy of the second path of the heat exchanger 130. When the heat exchange medium flows through the load flow path 160, it absorbs the cold energy of the load and cools down. All or part of the heat exchange medium flows into the heat exchange medium storage tank 110. The heat exchange medium in the heat exchange medium storage tank 110 absorbs the heat provided by the heater 111 and heats up. The heat exchange medium flows into the drive pump 120 to complete the heat exchange cycle.

[0149] The following is combined Figures 1-4 A thermal management system 100 according to an embodiment of this application is described.

[0150] The thermal management system 100 includes a heat exchange medium storage tank 110, a heater 111, an exhaust valve 112, a drive pump 120, a heat exchanger 130, and a load.

[0151] The thermal management system 100 has three operating modes: cooling mode, heating mode, and exhaust mode.

[0152] In the cooling operation mode, the thermal management system 100 provided in this embodiment: The first path of the drive pump 120 and the heat exchanger 130 is connected in series with the load flow path 160. The first port of the heat exchange medium storage tank 110 is not connected to the heat exchange cycle, and the second port of the heat exchange medium storage tank 110 is connected to the heat exchange cycle. The heater 111 is turned off, and the second path of the heat exchanger 130 is used to cool the first path of the heat exchanger 130.

[0153] The drive pump 120 drives the heat exchange medium to flow. When the heat exchange medium flows through the first path of the heat exchanger 130, it absorbs the cold energy of the refrigerant or air in the second path of the heat exchanger 130 and cools down. When the heat exchange medium flows through the load path 160, it absorbs the heat of the load and heats up. The heat exchange medium then flows into the drive pump 120, thus completing the heat exchange cycle. The heat exchange medium storage tank 110 can replenish the liquid and maintain the pressure of the heat exchange cycle through its second port.

[0154] In the heating operation mode, the thermal management system 100 provided in this embodiment: The first path of the drive pump 120 and heat exchanger 130, the load flow path 160 and the heat exchange medium storage tank 110 are connected in series. The first path of the drive pump 120 and heat exchanger 130 and the load flow path 160 are connected in series, and the heat exchange medium storage tank 110 is connected in parallel between the inlet of the drive pump 120 and the outlet of the load flow path 160. The heater 111 is turned on and the second path of the heat exchanger 130 is turned off.

[0155] The drive pump 120 drives the heat exchange medium to flow. The heat exchange medium flows through the first path of the heat exchanger 130 but does not absorb the cold energy of the second path of the heat exchanger 130. When the heat exchange medium flows through the load flow path 160, it absorbs the cold energy of the load and cools down. All or part of the heat exchange medium flows into the heat exchange medium storage tank 110. The heat exchange medium in the heat exchange medium storage tank 110 absorbs the heat provided by the heater 111 and heats up. The heat exchange medium flows into the drive pump 120 to complete the heat exchange cycle.

[0156] In the exhaust operation mode, the thermal management system 100 provided in this embodiment: The drive pump 120, the first path of the heat exchanger 130, the load flow path 160 are connected in series with the heat exchange medium storage tank 110, the heater 111 is turned off, and the second path of the heat exchanger 130 is turned off.

[0157] The drive pump 120 drives the heat exchange medium containing the doped gas to flow, allowing it to flow into the heat exchange medium storage tank 110 through the first path and load flow path 160 of the heat exchanger 130. In the heat exchange medium storage tank 110, the gas automatically rises and accumulates at the top of the tank, and the gas at the top of the tank is discharged through the exhaust valve 112.

[0158] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0159] In the description of this application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0160] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0161] In the description of this application, "multiple" means two or more.

[0162] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0163] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0164] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0165] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A thermal management system (100), characterized in that, include: The heat exchange cycle includes a drive pump (120), a first path of a heat exchanger (130), and a load flow path (160). A heat exchange medium storage tank (110) is provided with a heater (111), the first port of which is selectively connected to the heat exchange cycle, the second port of which is connected to the heat exchange cycle, and the heat exchange medium storage tank (110) is provided with a heater (111).

2. The thermal management system (100) according to claim 1, characterized in that, The outlet of the drive pump (120) is connected to the inlet of the first path of the heat exchanger (130), the outlet of the first path of the heat exchanger (130) is connected to the inlet of the load flow path (160), the outlet of the load flow path (160) is connected to the inlet of the drive pump (120), one of the outlet of the load flow path (160) and the inlet of the drive pump (120) is selectively connected to the first port of the heat exchange medium storage tank (110), and the other of the outlet of the load flow path (160) and the inlet of the drive pump (120) is connected to the second port of the heat exchange medium storage tank (110).

3. The thermal management system (100) according to claim 2, characterized in that, The thermal management system (100) further includes: a three-way valve (140), the first port of the three-way valve (140) being connected to the outlet of the load flow path (160), the second port of the three-way valve (140) being connected to the inlet of the drive pump (120), the third port of the three-way valve (140) being connected to the first port of the heat exchange medium storage tank (110), and the second port of the heat exchange medium storage tank (110) being connected between the second port of the three-way valve (140) and the inlet of the drive pump (120) or the second port of the heat exchange medium storage tank (110) being connected between the first port of the three-way valve (140) and the outlet of the load flow path (160).

4. The thermal management system (100) according to claim 3, characterized in that, The three-way valve (140) is a proportional valve, and the flow ratio between the second valve port and the third valve port of the three-way valve (140) is adjustable, or the flow ratio between the first valve port and the third valve port of the three-way valve (140) is adjustable.

5. The thermal management system (100) according to claim 2, characterized in that, The thermal management system (100) further includes: The first control valve (141) is connected to the heat exchange cycle and is located between the connection point of the first port of the heat exchange medium storage tank (110) and the heat exchange cycle and the connection point of the second port of the heat exchange medium storage tank (110) and the heat exchange cycle. The second control valve (142) is connected between the first port of the heat exchange medium storage tank (110) and the connection point of the heat exchange cycle to the first port of the heat exchange medium storage tank (110).

6. The thermal management system (100) according to claim 1, characterized in that, The heat exchange medium storage tank (110) is equipped with an exhaust valve (112).

7. The thermal management system (100) according to claim 6, characterized in that, The thermal management system (100) has an exhaust working mode. In the exhaust working mode, the heat exchange medium storage tank (110) is connected in series to the heat exchange cycle, and the exhaust valve (112) is opened.

8. The thermal management system (100) according to claim 1, characterized in that, The thermal management system (100) further includes a cooler (150) which is connected to the heat exchanger (130) via a second path. or, The second path of the heat exchanger (130) is an air flow path, used to connect to the external environment.

9. The thermal management system (100) according to any one of claims 1-8, characterized in that, The thermal management system (100) has a cooling working mode. In the cooling working mode, the first port of the heat exchange medium storage tank (110) is disconnected from the heat exchange cycle, the heater (111) is turned off, and the second path of the heat exchanger (130) is used to cool the first path of the heat exchanger (130). And / or, The thermal management system (100) has a heating working mode. In the heating working mode, the first port of the heat exchange medium storage tank (110) is connected to the heat exchange cycle, the heater (111) is turned on, and the second port of the heat exchanger (130) is turned off.

10. An energy storage system, characterized in that, include: Thermal management system (100) as described in any one of claims 1-9; An energy storage device, wherein the load flow path (160) is used to exchange heat for the energy storage device.

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