Thermal management system, battery swapping station, and thermal management method

Abstract

A thermal management system (100), a battery swapping station (1000), and a thermal management method. The thermal management system (100) comprises a coolant system (10), a refrigerant system (20) and a control device (80). The coolant system (10) has a coolant circulating therein and comprises a first heat exchange part (11), a second heat exchange part (12) and a third heat exchange part (13); the first heat exchange part (11) is configured to exchange heat with a plurality of positions to be heat-exchanged of the battery swapping station (1000); the second heat exchange part (12) is configured to exchange heat with a charging device (500) for said plurality of positions; and the third heat exchange part (13) is configured to exchange heat with air. The refrigerant system (20) exchanges heat with the coolant in the first heat exchange part (11) and the third heat exchange part (13), respectively. The control device (80) is configured to control start-stop and operation states of the first heat exchange part (11), the second heat exchange part (12), the third heat exchange part (13) and the refrigerant system (20) on the basis of air temperature of an environment where the thermal management system (100) is located, a preset temperature interval and heat exchange amounts required at said plurality of positions. The coolant system (10) and the refrigerant system (20) perform heat exchange for the battery swapping station (1000).

Description

Thermal management system, battery swapping station and thermal management methods

[0001] Cross-reference to related applications

[0002] This application claims priority and benefit from the following patent applications, the entire contents of which are incorporated herein by reference:

[0003] A Chinese patent application, filed on August 28, 2024 with the China National Intellectual Property Administration, with application number 202411194970.X and title "Thermal Management System, Battery Swapping Station and Thermal Management Method". Technical Field

[0004] This application relates to the field of battery technology, and in particular to a thermal management system, a battery swapping station, and a thermal management method. Background Technology

[0005] With the development of new energy technologies, batteries have been widely used in various technical fields. During use, batteries output energy by discharging. When the battery's energy is depleted, it needs to be recharged to replenish its energy. Currently, most batteries are recharged through battery swapping stations.

[0006] In related technologies, in order to ensure the effective operation of the battery swapping station, a heat exchange system is installed in the station to maintain the station at the optimal operating temperature. However, existing heat exchange systems are complex in structure and have high energy consumption. Summary of the Invention

[0007] In view of the above problems, this application provides a thermal management system, a battery swapping station, and a thermal management method, which solves the problems of complex structure and high energy consumption of existing heat exchange systems.

[0008] The first aspect of this application discloses a thermal management system for a battery swapping station. The battery swapping station includes multiple locations for heat exchange, including battery clusters, battery compartments, a control room, and charging devices. The thermal management system includes:

[0009] The coolant system circulates coolant and includes a first heat exchange section, a second heat exchange section and a third heat exchange section. The first heat exchange section is configured to exchange heat with the battery cluster, the battery compartment and the duty room respectively. The second heat exchange section is configured to exchange heat with the charging device and the third heat exchange section is configured to exchange heat with the air.

[0010] The refrigerant system contains refrigerant circulating within it, which can exchange heat with the coolant in the first heat exchange section and the coolant in the third heat exchange section, respectively.

[0011] The control device is electrically connected to the coolant system and the refrigerant system respectively. The control device is configured to control the start-up, shutdown and operation status of the first heat exchange section, the second heat exchange section, the third heat exchange section and the refrigerant system according to the ambient temperature of the thermal management system, the preset temperature range and the heat exchange required by multiple heat exchange locations.

[0012] Specifically, the thermal management system in this application can exchange heat with the battery swapping station through a set of coolant and refrigerant systems, thereby simplifying the structure of the thermal management system and effectively reducing energy consumption.

[0013] A second aspect of this application proposes a battery swapping station, which includes:

[0014] Thermal management system, the thermal management system is based on the above thermal management system;

[0015] The system includes multiple heat exchange locations, including a battery compartment, a duty room, a charging device, and a battery cluster. The battery compartment, duty room, and battery cluster are respectively configured to exchange heat with the first heat exchange section of the coolant system in the thermal management system, and the charging device is configured to exchange heat with the second heat exchange section of the coolant system.

[0016] Specifically, in this application, the thermal management system of the battery swapping station can exchange heat at multiple heat exchange locations of the station through a single coolant system and refrigerant system, thereby simplifying the structure of the thermal management system and effectively reducing energy consumption.

[0017] A third aspect of this application proposes a thermal management method, implemented through the aforementioned battery swapping station, comprising:

[0018] Obtain environmental parameters of the environment where the battery swapping station is located;

[0019] Get the current parameters of the battery swapping station;

[0020] Based on the heat exchange requirements in the current parameters and / or the air temperature in the environmental parameters being within the preset temperature range, the thermal management system is controlled to execute the preset control strategy corresponding to the preset temperature range and heat exchange requirements. The preset control strategy includes the first heat exchange section, the second heat exchange section, the third heat exchange section of the coolant system, and the start-up, shutdown, and operating status of the refrigerant system.

[0021] The thermal management method of this application embodiment controls the thermal management system to execute a preset control strategy corresponding to the preset temperature range and heat exchange demand based on the heat exchange demand in the current parameters and / or the air temperature in the environmental parameters being within a preset temperature range. This can better utilize the external environment to exchange heat at the battery swapping station, thereby reducing system energy consumption, improving the system's energy-saving performance, and reducing the overall energy consumption of the thermal management system.

[0022] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0023] Figure 1 schematically shows a simplified structural diagram of a battery swapping station according to one embodiment of this application;

[0024] Figure 2 is an enlarged structural diagram of the first part of the simplified structural diagram shown in Figure 1.

[0025] Figure 3 is an enlarged structural diagram of the second part of the simplified structural diagram shown in Figure 1.

[0026] Figure 4 is an enlarged structural diagram of the third part of the simplified structural diagram shown in Figure 1.

[0027] Figure 5 is an enlarged structural diagram of the fourth part of the simplified structural diagram shown in Figure 1.

[0028] Figure 6 shows the operation of the coolant system and refrigerant system in the thermal management system of the battery swapping station described in Figure 1 in the first mode (the part that does not participate in operation is indicated by the dotted line in the figure);

[0029] Figure 7 shows the operation of the coolant system and refrigerant system in the first sub-mode of the second mode in the thermal management system of the battery swapping station described in Figure 1 (the part that is not in operation in Figure 1 is not shown in Figure 7);

[0030] Figure 8 shows the operation of the coolant system and refrigerant system in the second sub-mode of the second mode in the thermal management system of the battery swapping station described in Figure 1 (the part that is not in operation in Figure 1 is not shown in Figure 8);

[0031] Figure 9 shows the coolant system in the thermal management system of the battery swapping station described in Figure 1 operating in thermal storage mode (the part that is not in operation in Figure 9 is not shown in Figure 7);

[0032] Figure 10 shows the operation of the coolant system in the thermal management system of the battery swapping station described in Figure 1 in low-temperature wake-up mode (the part that is not running in Figure 1 is not shown in Figure 10);

[0033] Figure 11 shows the operation of the coolant system in the thermal management system of the battery swapping station described in Figure 1 in the first mixed heating mode (the part that is not in operation in Figure 1 is not shown in Figure 11);

[0034] Figure 12 shows the operation of the coolant system in the thermal management system of the battery swapping station described in Figure 1 in the second mixed heating mode (the part that is not in operation in Figure 1 is not shown in Figure 12);

[0035] Figure 13 shows the operation of the coolant system in the thermal management system of the battery swapping station described in Figure 1 in the third hybrid heating mode (the part that is not in operation in Figure 1 is not shown in Figure 13);

[0036] Figure 14 schematically shows a structural block diagram of a thermal management system according to one embodiment of this application;

[0037] Figure 15 schematically illustrates a flowchart of a thermal management method according to one embodiment of this application.

[0038] The reference numerals in the attached diagram are as follows: 1000, Battery swapping station; 100, Thermal management system; 200, Battery cluster; 300, Battery compartment; 400, Duty room; 500, Charging device; 600, Water intake well; 10, Coolant system; 11, First heat exchange section; 111, First heat exchange component; 1111, First heat exchanger; 11111, First main pipeline; 11112, Branch pipeline; 11113, First control valve; 11114, Second main pipeline; 1112, First main pipeline; 1113, Second main pipeline; 1114, Expansion container; 1115, Third main pipeline; 1116, Branch pipeline; 1117, First drive pump; 1118, First temperature sensor; 1119, Heating element; 11191, Check valve; 11192, Third temperature sensor; 112. Second heat exchange assembly; 1121. First three-way valve; 1122. First tube; 1123. Second tube; 1124. Third tube; 1125. Second drive pump; 1126. Second three-way valve; 1127. Fifth tube; 1128. Fourth tube; 1129. Second heat exchange element; 11291. Third heat exchange element; 11292. Seventh tube; 11293. Sixth tube; 12. Second heat exchange section; 121. First pipeline; 122. Second pipeline; 123. Third pipeline; 124. Branch pipeline; 125. Second control valve; 126. Third drive pump; 127. Second temperature sensor; 13. Third heat exchange section; 131. Heat dissipation pipeline; 132. Radiator; 133. Cooling fan; 134. Third control valve; 14. Fourth heat exchange section; 141. First heat exchange pipeline; 142. Second heat exchange pipeline; 143. Heat exchange branch; 144. Fourth control valve; 145. Fourth drive pump; 146. Eighth temperature sensor; 15. Four-way reversing valve; 20. Refrigerant system; 21. Refrigerant assembly; 211. Second heat exchanger; 212. First heat exchanger; 213. Compressor; 214. Four-way valve; 30. First liquid collector; 31. Fourth temperature sensor; 40. Connecting pipeline; 50. On / off valve; 60. Second liquid collector; 61. Fifth temperature sensor; 70. Water cooling assembly; 71. Water storage tank; 72. Heat exchange component; 73. First water pipe; 74. Second water pipe; 75. Three-way control valve; 76. Third water pipe; 77. Fourth water pipe; 78. 79. Sixth temperature measuring element; 791. Water supply pump; 792. Seventh temperature measuring element; 793. Overflow pipe; 794. Drain pipe; 795. Drain valve; 796. Cleaning water gun; 80. Control device. Detailed Implementation

[0039] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0041] Currently, judging from market trends, battery applications are becoming increasingly widespread. Batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of battery applications, market demand is also constantly increasing.

[0042] In related technologies, batteries output energy by discharging during use. When the battery's energy is depleted, it needs to be recharged to replenish its energy. Currently, batteries are mostly recharged through battery swapping stations. To ensure the effective operation of battery swapping stations, heat exchange systems are installed to maintain the station at its optimal operating temperature. However, existing heat exchange systems are complex in structure and consume a lot of energy.

[0043] To address the aforementioned issues, the thermal management system of this application includes a coolant system, a refrigerant system, and a control device. The coolant system circulates coolant and includes a first heat exchange section, a second heat exchange section, and a third heat exchange section. The first heat exchange section exchanges heat with multiple locations requiring heat exchange, the second heat exchange section exchanges heat with charging devices at multiple locations requiring heat exchange, and the third heat exchange section exchanges heat with air. The refrigerant system circulates refrigerant, which can exchange heat with the coolant in both the first and third heat exchange sections. The control device is electrically connected to both the coolant system and the refrigerant system. The control device is configured to control the start-up, shutdown, and operating status of the first, second, and third heat exchange sections and the refrigerant system based on the ambient air temperature, a preset temperature range, and the required heat exchange capacity of the multiple locations requiring heat exchange. This thermal management system can exchange heat between the battery swapping station and a single coolant and refrigerant system, thereby simplifying the structure of the thermal management system and effectively reducing energy consumption.

[0044] Batteries that are charged via charging stations can be used, but are not limited to, in electrical devices such as vehicles, ships, or aircraft. A power system for such an electrical device can be constructed using battery cells and batteries as described in this application.

[0045] In addition, electrical devices that use batteries that are charged at charging stations as a power source can include, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc.

[0046] For example, a battery swapping station can be an energy station that charges and quickly swaps the batteries of electric vehicles. The battery swapping process involves removing the battery to be charged from the electric vehicle after it enters the station, and immediately installing another fully charged battery. The station then charges the battery to be charged. During charging, the battery generates heat and requires cooling. The thermal management system provided in this application embodiment can be used to cool the charging power battery, and can also be used to manage the thermal performance of the entire battery swapping station.

[0047] In this application, the battery swapping station has multiple heat exchange locations during operation. These locations include a battery compartment, a battery cluster, a charging device, and a duty room. There are multiple battery clusters, each containing an array of multiple batteries. The battery clusters are electrically connected to the charging device and provide power to it. The charging device charges the batteries to be charged. The duty room is for staff to be on duty.

[0048] In some embodiments of this application, as shown in Figures 1 to 5, the first aspect of this application proposes a thermal management system 100 for a battery swapping station 1000. The thermal management system 100 includes a coolant system 10, a refrigerant system 20, and a control device 80. The coolant system 10 circulates coolant and includes a first heat exchange section 11, a second heat exchange section 12, and a third heat exchange section 13. The first heat exchange section 11 is configured to exchange heat with the battery cluster 200, the battery compartment 300, and the duty room 400, respectively. The second heat exchange section 12 is configured to exchange heat with the charging device 500. The third heat exchange section 13 is configured to exchange heat with the air. The refrigerant system 20 is circulated with refrigerant, which can exchange heat with the coolant in the first heat exchange section 11 and the coolant in the third heat exchange section 13 respectively. The control device 80 is electrically connected to the coolant system 10 and the refrigerant system 20 respectively. The control device 80 is configured to control the start-up, shutdown and operation status of the first heat exchange section 11, the second heat exchange section 12, the third heat exchange section 13 and the refrigerant system 20 according to the ambient temperature of the environment where the thermal management system 100 is located, the preset temperature range and the amount of heat exchange required by multiple heat exchange locations.

[0049] Furthermore, the first heat exchange section 11 is configured to exchange heat with the battery cluster 200, the battery compartment 300, and the duty room 400 respectively, meaning that the first heat exchange section 11 can heat or cool the battery cluster 200, the battery compartment 300, and the duty room 400. Specifically, the first heat exchange section 11 can simultaneously perform cooling or heating operations on the battery cluster 200, the battery compartment 300, and the duty room 400, or it can perform cooling operations on the battery cluster 200 while simultaneously performing heating operations on the battery compartment 300 and the duty room 400.

[0050] Meanwhile, the heat exchange arrangement between the second heat exchange section 12 and the charging device 500 means that the coolant circulating in the second heat exchange section 12 can exchange heat with the charging device 500 to reduce the temperature rise of the charging device 500, thereby reducing the failure rate of the charging device 500.

[0051] The third heat exchange section 13 and the air heat exchange setting means that the coolant flowing in the third heat exchange section 13 can exchange heat with the outside air, thereby adjusting the temperature of the coolant.

[0052] It should be noted that, in this application, the coolant can be water, alcohol, or a mixture of water and alcohol, etc.

[0053] Specifically, in this application, the thermal management system 100 includes a coolant system 10 and a refrigerant system 20. The battery swapping station 1000 includes multiple locations to be heat exchanged. The battery swapping station 1000 is heat exchanged through the coolant system 10 and the refrigerant system 20, thereby simplifying the structure of the thermal management system 100 and effectively reducing energy consumption.

[0054] In some embodiments of this application, as shown in Figures 1 and 5, the coolant system 10 further includes a first liquid collector 30, a second liquid collector 60, a fourth heat exchange section 14, a connecting pipe 40, and an on / off valve 50 electrically connected to the control device 80. The second heat exchange section 12, the third heat exchange section 13, and the fourth heat exchange section 14 are respectively connected in parallel to the first liquid collector 30 and the second liquid collector 60. The coolant in the fourth heat exchange section 14 can exchange heat with the refrigerant in the refrigerant system 20. The first liquid collector 30 and the second liquid collector 60 are connected through the connecting pipe 40. The on / off valve 50 is provided on the connecting pipe 40 and is used to control the on / off of the connecting pipe 40.

[0055] Specifically, the first liquid collecting unit 30 and the second liquid collecting unit 60 are connected by a connecting pipe 40. The second heat exchange section 12, the third heat exchange section 13, and the fourth heat exchange section 14 are connected in parallel to the first liquid collecting unit 30 and the second liquid collecting unit 60, respectively. The connection between the first liquid collecting unit 30 and the second liquid collecting unit 60 is controlled by the on / off valve 50 on the connecting pipe 40. When the third heat exchange section 13 is not in use, the on / off valve 50 is opened to connect the first liquid collecting unit 30 and the second liquid collecting unit 60. When the third heat exchange section 13 is in use, the on / off valve 50 is closed to disconnect the first liquid collecting unit 30 and the second liquid collecting unit 60.

[0056] It should be understood that the on / off valve 50 is a switching valve, and the control device 80 is electrically connected to the switching valve. The control device 80 can control the on / off valve 50 to perform the opening or closing action.

[0057] Specifically, in the coolant system 10 of this application, connecting pipes and on / off valves 50 are used to control whether the third heat exchange section 13 is connected to the first heat exchange section 11, the second heat exchange section 12 and the fourth heat exchange section 14, so that the heat released by the power swapping station 1000 can be stored and utilized, thereby effectively reducing energy consumption.

[0058] It should be noted that a fourth temperature measuring element 31 is provided on the first liquid collecting element 30. The fourth temperature measuring element 31 can effectively obtain the temperature of the coolant at the position of the first liquid collecting element 30, so that the control device 80 can accurately control the thermal management system 100 according to the temperature, thereby effectively improving the control accuracy.

[0059] In addition, a fifth temperature measuring element 61 is provided on the second liquid collecting element 60. The fifth temperature measuring element 61 can effectively obtain the temperature of the coolant at the position of the second liquid collecting element 60, so that the control device 80 can accurately control the thermal management system 100 according to the temperature, thereby effectively improving the control accuracy.

[0060] In some embodiments of this application, the first liquid collection component 30 is an insulated box.

[0061] In this application, the insulated box has a certain volume, thereby enabling it to store coolant. At the same time, the insulated box has heat preservation capabilities. The insulated box includes a box body and an insulation structure (such as insulation cotton or insulation foam). The box body is used to store coolant, and the insulation structure is located on the outside of the box body. The insulation structure is used to prevent the coolant inside the insulated box from exchanging heat with the external environment, thereby maintaining the coolant temperature. In turn, the stored heat can be applied to the thermal management system 100 to reduce the system's energy consumption.

[0062] Specifically, in this application, the first liquid collection unit 30 is configured as an insulation box, thereby enabling the storage of heat and using the stored heat to heat the parts of the battery swapping station 1000 that need to be heated, further reducing energy consumption.

[0063] In some embodiments of this application, as shown in Figures 1 and 4, the refrigerant system 20 includes at least one set of refrigerant components 21. The refrigerant components 21 include a refrigerant circulation pipeline, and a compressor 213, a first heat exchanger 212, and a second heat exchanger 211 respectively disposed on the refrigerant circulation pipeline. The first heat exchanger 212 is thermally connected to the first heat exchange section 11, and the second heat exchanger 211 is thermally connected to the third heat exchange section 13. The compressor 213 is used to drive the refrigerant to flow in the circulation pipeline.

[0064] Specifically, when the refrigerant assembly 21 is running, the compressor 213 compresses the refrigerant and drives it to flow in the circulation path formed by the refrigerant assembly 21. The first heat exchanger 212 and the second heat exchanger 211 are respectively connected to the circulation path. One of them is an evaporator and the other is a condenser. When the refrigerant circulates to the position of the first heat exchanger 212, the refrigerant can exchange heat with the coolant in the first heat exchange section 11. When the refrigerant circulates to the position of the second heat exchanger 211, the refrigerant can exchange heat with the coolant in the fourth heat exchange section 14.

[0065] It should be noted that the refrigerant assembly 21 also includes components such as a bidirectional drying filter, an electronic expansion valve, a temperature sensor, a pressure sensor, and a drying bottle. Through the cooperation of the components in the refrigerant assembly 21, heat absorption and heat release operations are achieved through phase change, thereby assisting the first heat exchange section 11 in completing the heat exchange operation of the power exchange station 1000.

[0066] In this application, a refrigerant assembly 21 is provided, and the refrigerant assembly 21 is used to exchange heat with the coolant in the coolant system 10, so that the temperature of the coolant can effectively meet the heat exchange requirements of the battery swapping station 1000.

[0067] It should be noted that in this application, the refrigerant assembly 21 can be one, two, three, four, five, six, seven, eight, etc. When there are multiple refrigerant assemblies 21, they are connected in parallel. When the refrigerant system 20 needs to run, the number of refrigerant assemblies 21 in operation can be determined according to the heat exchange requirements, thereby reducing the energy consumption of the refrigerant assemblies 21 during operation. In addition, based on the different usage times of the refrigerant assemblies 21, refrigerant assemblies 21 with shorter usage times can be selected first, thereby reducing the failure rate of the refrigerant assemblies 21.

[0068] In some embodiments of this application, as shown in Figures 1 and 4, the refrigerant assembly 21 is in multiple groups, and at least a portion of the refrigerant assembly 21 also includes a four-way valve 214. The four-way valve 214 is electrically connected to the control device 80 and is used to switch the flow direction of the refrigerant in the refrigerant circulation pipeline so that the first heat exchanger 212 and the second heat exchanger 211 switch between the condenser and the evaporator.

[0069] Specifically, among the multiple refrigerant components 21, at least a portion of the refrigerant components 21 include a four-way valve 214. The refrigerant components 21 with the four-way valve 214 can adjust their operating mode by switching the direction of the four-way valve 214. For example, in cooling mode, the first heat exchanger 212 acts as an evaporator and the second heat exchanger 211 acts as a condenser; in heating mode, the first heat exchanger 212 acts as a condenser and the second heat exchanger 211 acts as an evaporator. Switching the direction of the four-way valve 214 allows the refrigerant components 21 to switch between cooling and heating modes.

[0070] In this application, by providing a four-way valve 214 in the refrigerant assembly 21, the refrigerant assembly 21 can have both cooling and heating modes to meet the cooling or heating needs of the coolant.

[0071] It should be noted that among the multiple refrigerant components 21, a portion of the refrigerant components 21 include a four-way valve 214, while another portion of the refrigerant components 21 do not include a four-way valve 214. This arrangement can effectively reduce manufacturing costs while meeting usage requirements.

[0072] In some embodiments of this application, as shown in FIG1, the coolant system 10 further includes a four-way reversing valve 15. The first heat exchange section 11 and the second heat exchange section 12 are respectively connected to the four-way reversing valve 15. The four-way reversing valve 15 is electrically connected to the control device 80. The four-way reversing valve 15 includes a first state and a second state that can be switched between each other. In the first state, the first heat exchange section 11 and the second heat exchange section 12 are disconnected from each other and form two coolant circulation paths. In the second state, the first heat exchange section 11 and the second heat exchange section 12 are connected and form a coolant circulation path.

[0073] Specifically, a four-way reversing valve 15 is disposed between the first heat exchange section 11 and the second heat exchange section 12. The four-way reversing valve 15 is used to switch between the first state and the second state to realize whether the first heat exchange section 11 and the second heat exchange section 12 are connected.

[0074] The first heat exchange section 11 has a first coolant circulation path, and the second heat exchange section 12 has a second coolant circulation path. The first coolant circulation path and the second coolant circulation path are respectively connected to the four-way reversing valve 15. When the four-way reversing valve 15 is in the first state, the first coolant circulation path and the second coolant circulation path are not connected to each other. At this time, the coolant in the first coolant circulation path circulates in the first coolant circulation path, and the coolant in the second coolant circulation path circulates in the second coolant circulation path. When the four-way reversing valve 15 is in the second state, the first coolant circulation path and the second coolant circulation path are connected. At this time, the coolant circulates in the first coolant circulation path and the second coolant circulation path.

[0075] It should be noted that the four-way reversing valve 15 is provided with a first flow channel and a second flow channel. The first flow channel and the second flow channel are not connected to each other. In the first state, the two ends of the first flow channel are connected to the first coolant circulation path, and the two ends of the second flow channel are connected to the second coolant circulation path, so as to realize that the first coolant circulation path and the second coolant circulation path are disconnected from each other. In the second state, the two ends of the first flow channel are connected to one end of the first coolant circulation path and one end of the second coolant circulation path, and the two ends of the second flow channel are connected to the other end of the first coolant circulation path and the other end of the second coolant circulation path, so as to realize that the first coolant circulation path and the second coolant circulation path are connected to each other.

[0076] In this application, a four-way reversing valve 15 is provided. The four-way reversing valve 15 switches between a first state and a second state, thereby enabling the first heat exchange section 11 and the second heat exchange section 12 of the coolant system 10 to be connected or disconnected, so that the coolant system 10 can effectively meet the heat exchange requirements of the battery swapping station 1000.

[0077] In some embodiments of this application, as shown in FIG2, the first heat exchange section 11 includes a first heat exchange component 111 and a second heat exchange component 112. The first heat exchange component 111 is connected to the four-way reversing valve 15 and is thermally connected to the first heat exchanger 212. The first heat exchange component 111 is used to exchange heat with the battery cluster 200. The second heat exchange component 112 is arranged in parallel with the first heat exchange component 111. The second heat exchange component 112 is used to exchange heat with the battery compartment 300 and the duty room 400.

[0078] Specifically, in this application, multiple heat exchange components are set up, and heat exchange is achieved at different locations of the power swapping station 1000 by using multiple heat exchange components, so that multiple locations of the power swapping station 1000 that need heat exchange can be heat exchanged, thereby meeting the heat exchange requirements of the power swapping station 1000.

[0079] In some embodiments of this application, as shown in FIG2, the first heat exchange assembly 111 includes a first heat exchange device, a first main pipeline 1112, a second main pipeline 1113, an expansion container 1114, a third main pipeline 1115, multiple branch pipelines 1116, and multiple first drive pumps 1117. The first heat exchange device is used for thermally conductive connection with the battery cluster 200. The outlet of the first heat exchange device is connected to a four-way reversing valve 15 through the first main pipeline 1112, and one end of the second main pipeline 1113 is connected to a four-way valve 214. The expansion vessel 1114 is connected to the other end of the second main pipeline 1113, and the third main pipeline 1115 is connected to the inlet of the first heat exchanger. The expansion vessel 1114 is connected to the third main pipeline 1115 through multiple branch pipelines 1116. The number of branch pipelines 1116 is the same as the number of first heat exchangers 212. The branch pipelines 1116 are connected to the first heat exchangers 212. Each branch pipeline 1116 is equipped with a first drive pump 1117, and each first drive pump 1117 is electrically connected to the control device 80.

[0080] Specifically, the first heat exchange device is thermally connected to the battery in the battery cluster 200. The inlet and outlet of the first heat exchange device are connected to the first main pipeline 1112 and the third main pipeline 1115, respectively. The first main pipeline 1112 and the second main pipeline 1113 are respectively connected to the four-way reversing valve 15. Multiple branch pipelines 1116 are connected in parallel to the second main pipeline 1113 and the third main pipeline 1115. The opening and closing of the branch pipeline 1116 is controlled by the first drive pump 1117 on each branch pipeline 1116.

[0081] The expansion container 1114 is located between the second pipe 122 and multiple branch pipes 1116. The expansion container 1114 can be used to divert the coolant and reduce the flow pattern of coolant in the multiple branch pipes 1116.

[0082] In this application, the first heat exchange component 111 is configured so that the number of branch pipes 1116 that can be opened can be set according to the needs, thereby effectively reducing energy consumption while meeting the heat exchange requirements.

[0083] It should be noted that each branch pipe 1116 is also equipped with a one-way valve 11191. The one-way valve 11191 is unidirectionally open from the expansion container 1114 to the third main pipe 1115. The one-way valve 11191 can reduce the backflow of cooling.

[0084] The expansion container 1114 is equipped with a vent, a third temperature sensor 11192, a liquid level sensor, and a drain valve. The vent is located at the top of the expansion container 1114 to allow any gas mixed in with the coolant entering the container to be discharged promptly, reducing the risk of reduced heat exchange efficiency due to gas contamination. The third temperature sensor 11192 (e.g., a temperature sensor or thermometer) effectively measures the temperature of the coolant in the expansion container 1114, enabling effective control of the thermal management system 100. The liquid level sensor accurately determines the liquid level in the expansion container 1114, allowing for timely replenishment of coolant when the level is insufficient. The drain valve effectively discharges coolant when the level exceeds a set threshold, reducing the risk of thermal expansion due to excessive coolant.

[0085] In addition, in this application, the first drive pump 1117 is an adjustable speed drive pump, and the flow rate of the branch pipe 1116 is adjusted by adjusting the speed of the first drive pump 1117.

[0086] In some embodiments of this application, as shown in FIG2, the first heat exchange assembly 111 further includes a first temperature measuring element 1118 and a heating element 1119. The first temperature measuring element 1118 is disposed on the third main pipeline 1115 and electrically connected to the control device 80. The first temperature measuring element 1118 is used to detect the temperature of the coolant flowing through the third main pipeline 1115. The heating element 1119 is disposed on the third main pipeline 1115 and electrically connected to the control device 80. The heating element 1119 is used to heat the coolant flowing through the third main pipeline 1115.

[0087] Specifically, in this application, the first temperature measuring element 1118 can effectively obtain the temperature of the coolant at the location of the third main pipeline 1115, so that the control device 80 can adjust the control strategy according to the temperature of the coolant to meet the heat exchange requirements of the battery swapping station 1000. The heating element 1119 is provided to heat the coolant under low temperature conditions, so as to use the heated coolant to heat up the batteries in the battery cluster 200, thereby meeting the operation requirements of the battery swapping station 1000.

[0088] It should be noted that in this application, the first temperature measuring element 1118 can be a temperature sensor or thermometer, etc., and the heating element 1119 can be a heating wire or PCT (Positive Temperature Coefficient), etc.

[0089] In some embodiments of this application, as shown in Figures 1 to 10, the first heat exchange device includes a first main pipe 11111, a second main pipe 11114, multiple branch pipes 11112, multiple first heat exchange components, and multiple first control valves 11113. The first main pipe 11111 is connected to a third main pipe 1115, the second main pipe 11114 is connected to the first main pipe 1112, and the multiple branch pipes 11112 are connected in parallel between the first main pipe 11111 and the second main pipe 11114. The number of branch pipes 11112 is the same as the number of battery clusters 200. Each branch pipe 11112 is provided with a first heat exchange component, which is used for thermally conductive connection with the battery clusters 200. Each branch pipe 11112 is provided with a first control valve 11113, which is electrically connected to the control device 80 and is used for opening and closing the branch pipe 11112.

[0090] Specifically, the battery swapping station 1000 includes multiple battery clusters 200 arranged in a row, and each battery cluster 200 is provided with a first heat exchanger to exchange heat with the battery cluster 200.

[0091] It should be understood that the first heat exchanger can be a plate heat exchanger or a finned heat exchanger, etc. In addition, the first control valve 11113 is an adjustable solenoid valve, which regulates the flow rate of coolant in the first heat exchanger by adjusting the opening of the first control valve.

[0092] In this application, by configuring the first heat exchange device, the first heat exchange device can be adapted to the layout of the battery cluster 200 in the battery swapping station 1000. By controlling the first control valve 11113 on different branch pipes 11112, the first heat exchange device can fully meet the heat exchange requirements of the battery cluster 200, thereby effectively improving the heat exchange effect and enabling the battery cluster 200 to operate stably and efficiently.

[0093] In some embodiments of this application, as shown in FIG2, the second heat exchange assembly 112 includes a first three-way valve 1121, a first pipe body 1122, a second pipe body 1123, a third pipe body 1124, a second drive pump 1125, a second three-way valve 1126, at least one second heat exchange element 1129, a fourth pipe body 1128, at least one third heat exchange element 11291, a fifth pipe body 1127, a sixth pipe body 11293, and a seventh pipe body 11292. The first three-way valve 1121 is electrically connected to the control device 80, and the control device 80 is capable of... The connection path of the first three-way valve 1121 is controlled. One end of the first pipe 1122 is connected to the second heat exchange section 12, and the connection position is located downstream of the charging device 500. The other end of the first pipe 1122 is connected to the first interface of the first three-way valve 1121. One end of the first pipe 1122 is connected to the first main pipe 11111. The other end of the first pipe 1122 is connected to the second interface of the first three-way valve 1121. One end of the third pipe 1124 is connected to the third interface of the first three-way valve 1121. The second drive pump 11... 25 is mounted on the third pipe body 1124 and electrically connected to the control device 80. The other end of the third pipe body 1124 is connected to the first interface of the second three-way valve 1126. The second three-way valve 1126 is electrically connected to the control device 80, and the control device 80 can control the connection path of the second three-way valve 1126. At least one second heat exchanger 1129 is used to be installed in the duty room 400 of multiple heat exchange locations and is used to exchange heat with the duty room 400. The second interface of the second three-way valve 1126 is connected to at least one second three-way valve 1126 through the fourth pipe body 1128. The inlets of the two heat exchangers 1129 are connected. At least one third heat exchanger 11291 is installed inside the battery compartment 300 and is used to exchange heat with the battery compartment 300. The third port of the second three-way valve 1126 is connected to at least one third heat exchanger 11291 through the fifth pipe body 1127. The outlet of at least one third heat exchanger 11291 is connected to the first main pipeline 1112 through the sixth pipe body 11293. The outlet of at least one second heat exchanger 1129 is connected to the sixth pipe body 11293 through the seventh pipe body 11292.

[0094] Specifically, the control device 80 controls the first three-way valve 1121 and the second three-way valve 1126 respectively, and selects the connection path of the first three-way valve 1121 and the second three-way valve 1126 according to the heat exchange requirements to meet the heat exchange requirements of the duty room 400 and the battery compartment 300. By setting the second heat exchange component 112, the second heat exchange component 112 can realize heat exchange of the duty room 400 and the battery compartment 300 so that the temperature of the duty room 400 and the battery compartment 300 meets the requirements.

[0095] It should be noted that the second heat exchanger 1129 includes a first heat exchange core and a first fan. The number of first heat exchange cores is at least one and is set in the duty room 400 and exchanges heat with the duty room 400. The first fan is set adjacent to the first heat exchange core and uses the first fan to drive airflow to exchange heat with the first heat exchange core, so as to improve the heat exchange efficiency.

[0096] The third heat exchanger 11291 includes a second heat exchange core and a second fan. The number of second heat exchange cores is at least one and is disposed in the battery compartment 300 and exchanges heat with the duty room 400. The second fan is disposed adjacent to the second heat exchange core and uses the second fan to drive airflow to exchange heat with the second heat exchange core to improve the heat exchange efficiency.

[0097] In addition, a temperature sensor is installed in the duty room 400 to detect the current temperature of the duty room 400.

[0098] At the same time, a temperature sensor is also installed inside the battery compartment 300, and the temperature inside the battery compartment 300 is detected by the temperature sensor.

[0099] Furthermore, in this application, the second drive pump 1125 is an adjustable speed drive pump, and the flow rate of the branch pipe 1116 is adjusted by adjusting the speed of the second drive pump 1125.

[0100] In some embodiments of this application, as shown in Figures 1 and 3, the second heat exchange section 12 includes a first pipe 121, a second pipe 122, a third pipe 123, multiple fourth heat exchange elements, multiple branch pipes 124, multiple second control valves 125, a third drive pump 126, and a second temperature measuring element 127. One end of the first pipe 121 is connected to the second liquid collecting element 60, and the other end of the first pipe 121 is connected to the four-way reversing valve 15. One end of the second pipe 122 is connected to the four-way reversing valve 15, and one end of the third pipe 123 is connected to the first liquid collecting element 30. The first pipe body 1122 is connected to the third pipe 123, and the multiple branch pipes 124 are connected in parallel to the second pipe 121. Between pipe 22 and the third pipe 123, the number of branch pipes 124 is the same as the number of charging cabinets in the charging device 500. Each branch pipe 124 is equipped with a fourth heat exchanger, which is used to conduct heat to the charging cabinet. Each branch pipe 124 is equipped with a second control valve 125, which is electrically connected to the control device 80 and is used to control the on / off state of the branch pipe 124. A third drive pump 126 is installed on the third pipe 123 and is electrically connected to the control device 80. A second temperature sensor 127 is installed on the third pipe 123 and is electrically connected to the control device 80. The second temperature sensor 127 is used to detect the temperature of the coolant flowing through the third pipe 123.

[0101] Specifically, the battery swapping station 1000 includes multiple sets of charging cabinets arranged in a row. Each set of charging cabinets is equipped with a fourth heat exchanger to exchange heat with the charging cabinet.

[0102] It should be understood that the fourth heat exchanger can be a plate heat exchanger or a finned heat exchanger, etc. Additionally, the second control valve 125 is an adjustable solenoid valve; adjusting the opening of the second control valve regulates the flow rate of the coolant in the fourth heat exchanger.

[0103] Furthermore, in this application, the third drive pump 126 is an adjustable speed drive pump, and the flow rate of the branch pipe 1116 is adjusted by regulating the rotational speed of the third drive pump 126. Meanwhile, the second temperature sensing element 127 can be a temperature sensor or thermometer, etc.

[0104] In this application, by configuring the second heat exchange section 12, the second heat exchange section 12 can exchange heat with the heat exchange device, thereby reducing the temperature rise of the charging device 500 and thus reducing the failure rate of the charging device 500.

[0105] In some embodiments of this application, as shown in Figures 1 and 5, the third heat exchange section 13 includes at least one heat dissipation pipe 131, a radiator 132, and a third control valve 134. At least one heat dissipation pipe 131 is connected between the first liquid collection element 30 and the second liquid collection element 60. Each heat dissipation pipe 131 is provided with a radiator 132, which is electrically connected to the control device 80. Each heat dissipation pipe 131 is provided with a third control valve 134, which is electrically connected to the control device 80 and is used to control the on / off state of the heat dissipation pipe 131.

[0106] Specifically, in this application, a third heat exchange section 13 is provided, which can be used to exchange heat between the coolant and the outside air, thereby enabling the battery swapping station 1000 to be cooled in a low-temperature environment by using the view of the outside environment, and thus further reducing energy consumption.

[0107] It should be noted that the radiator 132 can be a finned structure or a plate structure. In this application, the radiator 132 is a finned structure, which can increase the heat exchange area and further improve the heat exchange efficiency.

[0108] In addition, the third heat exchange section 13 also includes a cooling fan 133. Each heat sink 132 is equipped with a corresponding cooling fan 133. The cooling fan 133 can increase the airflow rate, thereby further improving the heat dissipation efficiency.

[0109] Furthermore, the aforementioned cooling fan 133 can be a fixed-speed fan or an adjustable-speed fan. In this application, the cooling fan 133 is an adjustable-speed fan, which can reduce energy consumption.

[0110] In addition, the third control valve 134 is an adjustable solenoid valve, which adjusts the flow rate of coolant in radiator 132 by adjusting the opening of the third control valve.

[0111] In some embodiments of this application, as shown in Figures 1 and 5, the fourth heat exchange section 14 includes a first heat exchange pipe 141, a second heat exchange pipe 142, multiple heat exchange branches 143, a fourth control valve 144, and a fourth drive pump 145. One end of the first heat exchange pipe 141 is connected to the first liquid collector 30, and one end of the second heat exchange pipe 142 is connected to the second liquid collector 60. Multiple heat exchange branches 143 are connected in parallel between the first heat exchange pipe 141 and the second heat exchange pipe 142. The number of heat exchange branches 143 is the same as the number of first heat exchangers 212. Each first heat exchanger 212 is connected to another first heat exchanger 212. Each heat exchange branch 143 is provided with a fourth control valve 144, which is electrically connected to the control device 80 and is used to control the on / off state of the heat exchange branch 143. The fourth drive pump 145 is located on the second heat exchange pipe 142 and is electrically connected to the control device 80.

[0112] Specifically, in the fourth heat exchange section 14, the number of heat exchange branches 143 is consistent with the number of refrigerant components 21 in the refrigerant system 20, and they are set in a one-to-one correspondence. When the refrigerant components 21 are running, the corresponding heat exchange branches 143 are started at the same time to exchange heat with the refrigerant components 21 using the heat exchange branches 143, so as to meet the operating requirements of the refrigerant components 21. Whether the heat exchange branches 143 are connected is controlled by the fourth control valve 144.

[0113] Specifically, in this application, a fourth heat exchange section 14 is provided to exchange heat with the refrigerant assembly 21 of the refrigerant system 20, and through...

[0114] It should be noted that the third control valve 134 is an adjustable solenoid valve, and the flow rate of coolant in radiator 132 is adjusted by adjusting the opening of the third control valve.

[0115] In addition, in this application, the fourth drive pump 145 is an adjustable speed drive pump, and the flow rate of the heat exchange branch 143 is adjusted by adjusting the speed of the fourth drive pump 145.

[0116] Furthermore, an eighth temperature sensor 146 is provided on the second heat exchange pipe 142. This eighth temperature sensor 146 effectively obtains the temperature of the coolant at the location of the second heat exchange pipe 142, allowing the control device 80 to accurately control the thermal management system 100 based on this temperature, thereby effectively improving control accuracy. The eighth temperature sensor 146 can be a temperature sensor or a thermometer, etc.

[0117] In some embodiments of this application, as shown in Figures 1 to 10, the thermal management system 100 further includes a water-cooling component 70, which is thermally connected to the fourth heat exchange section 14.

[0118] Specifically, in this application, a water-cooling component 70 is provided, and the water-cooling component 70 exchanges heat with the refrigerant system 20 through the fourth heat exchange section 14, thereby reducing the condensing temperature of the refrigerant system 20 and thus improving the coefficient of performance of the thermal management system 100.

[0119] In some embodiments of this application, as shown in Figures 1 and 3, the water-cooled assembly 70 includes a water storage tank 71, a heat exchange component 72, a first water pipe 73, and a second water pipe 74. The water storage tank 71 is used to store groundwater. The heat exchange component 72 includes a first channel and a second channel. The first channel and the second channel are not connected to each other but can conduct heat to each other. The first channel is connected to the second heat exchange pipeline 142. One end of the first water pipe 73 is connected to the water storage tank 71, and the other end of the first water pipe 73 is connected to one end of the second channel. One end of the second water pipe 74 is connected to the other end of the second channel, and the other end of the second water pipe 74 is connected to the water storage tank 71.

[0120] Specifically, when the water-cooled assembly 70 is running, the water in the water storage tank 71 circulates between the second channel and the water storage tank 71. When the coolant from the fourth part passes through the first channel, the coolant exchanges heat with the water to regulate the temperature of the coolant. The water-cooled assembly 70 is configured such that the water in the water storage tank 71 can exchange heat for the refrigerant system 20 and the coolant system 10, thereby reducing energy consumption.

[0121] It should be noted that the heat exchange section can be a plate heat exchanger or a shell and tube heat exchanger, etc.

[0122] Furthermore, in this application, the water storage tank 71 is equipped with a seventh temperature measuring element 791. This seventh temperature measuring element 791 effectively obtains the temperature of the coolant within the water storage tank 71, allowing the control device 80 to accurately control the thermal management system 100 based on this temperature, thereby effectively improving control accuracy. The seventh temperature measuring element 791 can be a temperature sensor or a thermometer, etc.

[0123] In addition, the water storage tank 71 is equipped with an overflow pipe 792, a drain pipe 793, a drain valve 794, and a cleaning water gun 795. One end of the drain pipe 793 is connected to the bottom of the water storage tank 71, and the other end is connected to the cleaning water gun. The drain valve 794 is installed on the drain pipe 793 and electrically connected to the control device 80. One end of the overflow pipe 792 is connected to the top of the water storage tank 71, and the other end is connected to the drain pipe 793 (the connection point is located between the drain valve 794 and the cleaning water gun). The overflow pipe 792 is used to control the water level of the water storage tank 71, and the cleaning water gun is used to perform cleaning operations on the battery swapping station 1000.

[0124] In some embodiments of this application, as shown in Figures 1 and 3, the water-cooling assembly 70 further includes a three-way control valve 75, a third water pipe 76, a fourth water pipe 77, and a water supply pump 79. The three-way control valve 75 is electrically connected to a control device 80, which can control the connection path of the three-way control valve 75. The other end of the second water pipe 74 is connected to the first interface of the three-way control valve 75. The second interface of the three-way control valve 75 is connected to the water storage tank 71 through the third water pipe 76. The third interface of the three-way control valve 75 is connected to the water intake well 600 through the fourth water pipe 77. The water supply pump 79 is located on the third water pipe 76 and is used to supply water from the water intake well 600 to the water storage tank 71.

[0125] Specifically, in this application, the water-cooled component 70 is configured to use water from the water storage tank 71 or the water intake well 600 to exchange heat for the refrigerant system 20 and the coolant system 10, thereby further reducing energy consumption.

[0126] It should be noted that the control device 80 controls the three-way control valve 75 and selects the path of the three-way control valve 75 according to the heat exchange requirements in order to meet the heat exchange requirements of the coolant passing through the heat exchange component 72.

[0127] In addition, in this application, the water supply pump 79 is an adjustable speed drive pump, and the water flow rate is adjusted by adjusting the speed of the water supply pump 79.

[0128] Furthermore, a sixth temperature measuring element 78 is provided on the second water pipe 74. This sixth temperature measuring element 78 effectively obtains the temperature of the coolant at the location of the second water pipe 74, allowing the control device 80 to accurately control the thermal management system 100 based on this temperature, thereby effectively improving control accuracy. The sixth temperature measuring element 78 can be a temperature sensor or a thermometer, etc.

[0129] As shown in Figure 1, the second aspect of this application proposes a battery swapping station 1000, which includes a thermal management system 100 and multiple heat exchange locations. The thermal management system 100 is as described above. The multiple heat exchange locations include a battery compartment 300, a duty room 400, a charging device 500, and a battery cluster 200 within the battery compartment 300. The battery compartment 300, the duty room 400, and the battery cluster 200 are respectively configured to exchange heat with a first heat exchange portion 11 in the coolant system 10 of the thermal management system 100, and the charging device 500 is configured to exchange heat with a second heat exchange portion 12 in the coolant system 10.

[0130] Specifically, in this application, the thermal management system 100 of the battery swapping station 1000 can exchange heat at multiple heat exchange locations of the battery swapping station 1000 through a set of coolant system 10 and refrigerant system 20, thereby simplifying the structure of the thermal management system 100 and effectively reducing energy consumption.

[0131] As shown in Figures 6 to 15, a third aspect of this application proposes a thermal management method, which is implemented through the battery swapping station 1000 described above. The thermal management method includes:

[0132] S10: Obtain environmental parameters of the environment where the battery swapping station 1000 is located.

[0133] Specifically, in the thermal management system 100 of the battery swapping station 1000, an acquisition component is set on the battery swapping station 1000. The acquisition component includes, but is not limited to, acquiring environmental parameters of the location of the battery swapping station 1000. The acquisition component includes, but is not limited to, an externally installed temperature acquisition element (including, but not limited to, a temperature sensor). The temperature detection element is used to detect the air temperature of the environment where the battery swapping station 1000 is located, so that the control device 80 can start the refrigerant system 20 as needed according to the air temperature, thereby effectively reducing energy consumption while meeting the heat exchange requirements of the battery swapping station 1000.

[0134] S20: Get the current parameters of battery swapping station 1000.

[0135] Specifically, the acquisition components include, but are not limited to, acquiring the heat exchange requirements of the battery, battery compartment 300, duty room 400, and charging device 500 in the battery swapping station 1000, so that the control device 80 can control the coolant system 10 and the refrigerant system 20 according to the heat exchange requirements of different locations, so as to meet the heat exchange requirements of the battery, battery compartment 300, duty room 400, and charging device 500, thereby meeting the heat exchange requirements of the battery swapping station 1000.

[0136] S30: Based on the heat exchange requirements in the current parameters and / or the air temperature in the environmental parameters belonging to the preset temperature range, control the thermal management system 100 to execute the preset control strategy corresponding to the preset temperature range and heat exchange requirements. The preset control strategy includes the start-up, shutdown and operation status of the first heat exchange section 11, the second heat exchange section 12, the third heat exchange section 13 of the coolant system 10 and the refrigerant system 20.

[0137] Specifically, the control device 80 receives the air temperature from the environmental parameters, and also receives the heat exchange requirements of the battery, battery compartment 300, duty room 400 and charging device 500. The preset temperature range is a settable numerical range. The preset temperature range is set in different numerical ranges, and the coolant system 10 and refrigerant are controlled according to the air temperature belonging to the preset temperature range and the heat exchange requirements.

[0138] For example, if the acquired air temperature is within a preset temperature range that is less than zero degrees, the heat exchange requirement of the battery and charging device 500 is cooling, while the heat exchange requirement of the duty room 400 and the battery compartment 300 is heating. Therefore, the control device 80 controls the corresponding pipelines and valves of the refrigerant system 20 and the coolant assembly to make the refrigerant assembly 21 and the coolant assembly operate, thereby meeting the heat exchange requirements of the battery swapping station 1000.

[0139] For example, if the obtained air temperature is within a preset temperature range, which is greater than zero degrees, the heat exchange demand of the battery, charging device 500, duty room 400 and battery compartment 300 is for cooling. The control device 80 controls the corresponding pipelines and valves of the refrigerant system 20 and coolant components to make the refrigerant component 21 and coolant components operate, thereby meeting the heat exchange demand of the battery swapping station 1000.

[0140] It should be understood that when the control device 80 controls the coolant system 10 and the refrigerant system 20, it can rely on one or both of the following conditions: the air temperature is within the preset temperature range and the heat exchange requirement in the current parameters.

[0141] The thermal management method of this application embodiment controls the thermal management system 100 to execute the preset control strategy corresponding to the preset temperature range and heat exchange demand based on the heat exchange demand in the current parameters and / or the air temperature in the environmental parameters belonging to the preset temperature range. This can better utilize the external environment to exchange heat on the battery swapping station 1000, thereby reducing system energy consumption, improving the system's energy-saving performance, and reducing the overall energy consumption of the thermal management system 100.

[0142] As shown in Figure 6, in some embodiments of this application, step S30 specifically includes the following steps:

[0143] S31: Determine whether the air temperature belongs to the first preset temperature range, where the first preset temperature range is [10℃, 40℃].

[0144] Specifically, the control device 80 compares the ambient temperature of the environment where the battery swapping station 1000 is located with the first preset temperature range, and controls the refrigerant system 20 and the coolant system 10 based on the comparison result.

[0145] It is important to understand that during the comparison process, the air temperature is compared with the two endpoints of the first preset temperature range, that is, the air temperature is compared with 10℃ and 40℃ respectively. When 10℃≤ air temperature and air temperature≤40℃, the air temperature is determined to belong to the first preset temperature range. When the air temperature<10℃ or the air temperature is greater than 40℃, the air temperature is determined not to belong to the first preset temperature range.

[0146] S32: Based on the fact that the air temperature is within the first preset temperature range, and the heat exchange requirements of the battery compartment 300, battery cluster 200, duty room 400 and charging device 500 are all for cooling, control the coolant system 10 and refrigerant system 20 to operate in the first mode.

[0147] When the temperature falls within the first preset temperature range, the specific temperature range can be 10℃, 13℃, 16℃, 19℃, 20℃, 23℃, 26℃, 29℃, 30℃, 33℃, 36℃, 39℃, or 40℃.

[0148] Specifically, since the first preset temperature range is [10℃, 40℃], it indicates that the air temperature is at a relatively high value, that is, the environment in which the battery swapping station 1000 is located is a high temperature environment. In order for the battery swapping station 1000 to operate stably in a high temperature environment, the battery compartment 300, battery cluster 200, duty room 400 and charging device 500 of the battery swapping station 1000 need to be cooled to reach a suitable operating temperature. Based on this, the coolant system 10 and the refrigerant system 20 are switched to the first mode so that the battery compartment 300, battery cluster 200, duty room 400 and charging device 500 can exchange heat through the refrigerant system 20, coolant system 10 and the external environment, so that the battery compartment 300, battery cluster 200, duty room 400 and charging device 500 can reach a suitable operating temperature, thereby improving the energy-saving performance of the system and reducing the overall energy consumption of the thermal management system 100.

[0149] In some embodiments of this application, step S32 specifically includes the following steps:

[0150] S321: Control the four-way reversing valve 15 in the coolant system 10 to switch to the first state, so that the first heat exchange section 11 and the second heat exchange section 12 are disconnected from each other, so that the first heat exchange section 11 forms a closed circulation path.

[0151] Specifically, the four-way reversing valve 15 includes a first flow channel and a second flow channel. The first flow channel and the second flow channel are not connected to each other. When the control device 80 controls the four-way reversing valve 15, the four-way reversing valve 15 can change direction. When the first heat exchange part 11 is connected to both ends of the first flow channel and the second heat exchange part 12 is connected to both ends of the second flow channel, the four-way reversing valve 15 is in the first state. When one end of the first flow channel is connected to the first heat exchange part 11 and the other end of the first flow channel is connected to the second heat exchange part 12, and one section of the second flow channel is connected to the first heat exchange part 11 and the other end of the second flow channel is connected to the second heat exchange part 12, the four-way reversing valve 15 is in the second state.

[0152] When the first flow channel refrigerant system 20 and the coolant system 10 are running in the first mode, the four-way reversing valve 15 needs to be controlled. By switching the four-way reversing valve 15 to the first state, the first heat exchange section 11 and the second heat exchange section 12 are disconnected. The first heat exchange section 11 forms a closed circulation path. In this closed circulation path, the coolant circulates and uses the circulating coolant to exchange heat with the battery, battery compartment, charging device 500 and duty room 400 respectively, so as to reduce the temperature of the battery, battery compartment, charging device 500 and duty room 400.

[0153] S322: Control the second heat exchange section 12 to be connected to the third heat exchange section 13 through the first liquid collector 30 and the second liquid collector 60 of the coolant system 10, and control the fourth heat exchange section 14 of the coolant system 10 to be connected to the third heat exchange section 13 through the first liquid collector 30 and the second liquid collector 60.

[0154] Specifically, when the refrigerant system 20 and the coolant system 10 are in the first mode, the on / off valve 50 on the connecting pipe 40 between the first liquid collector 30 and the second liquid collector 60 is controlled so that the on / off valve 50 is in the closed state. At this time, the first liquid collector 30 and the second liquid collector 60 cannot be connected through the connecting pipe.

[0155] The second heat exchange section 12, the third heat exchange section 13, and the fourth heat exchange section are arranged in parallel on the first liquid collector 30 and the second liquid collector 60. At this time, the second heat exchange section 12 can be connected to the third heat exchange section 13 through the first liquid collector 30 and the second liquid collector 60, and the fourth heat exchange section 14 can be connected to the third heat exchange section 13 through the first liquid collector 30 and the second liquid collector 60. In addition, the second heat exchange section 12 can also be connected to the fourth heat exchange section 14 through the first liquid collector 30 and the second liquid collector 60 respectively.

[0156] S323: Control at least a portion of the refrigerant components 21 in the refrigerant system 20 to operate in cooling mode.

[0157] Specifically, in the first mode, the first heat exchange section 11 provides heat exchange and cooling for the battery, battery compartment 300, and duty room 400; the refrigerant system 20 provides heat exchange and cooling for the first heat exchange section 11; the second heat exchange section 12 provides cooling for the charging device 500; the third heat exchange section 13 provides heat exchange and cooling for the second heat exchange section 12; and simultaneously, the third heat exchange section 13 provides heat exchange and cooling for the refrigerant system 20 through the fourth heat exchange section 14. When the refrigerant system 20 provides cooling for the first heat exchange section 11, at least a portion of the multiple refrigerant components 21 in the refrigerant system 20 operate in cooling mode.

[0158] S324: Control the coolant to circulate in the first heat exchange section 11 and exchange heat with the first heat exchanger 212 of the refrigerant assembly 21 to reduce the temperature of the coolant, and use the cooled coolant to cool the battery cluster 200, battery compartment 300 and duty room 400.

[0159] Specifically, when operating in the first mode, the refrigerant assembly 21 is in a cooling mode. The first heat exchanger 212 of the refrigerant assembly 21 is an evaporator, which exchanges heat with the coolant in the first heat exchange section 11 to reduce the temperature of the coolant passing through the evaporator. The second heat exchanger 211 of the refrigerant assembly 21 is a condenser. When the refrigerant flows through the condenser, the coolant in the fourth heat exchange section 14 exchanges heat with the refrigerant to reduce the temperature of the refrigerant. When the coolant after heat exchange in the fourth section circulates to the third heat exchange section 13, it exchanges heat with the air through the radiator 132 of the third section to reduce the temperature of the coolant.

[0160] S325: Control the third drive pump 126 of the second heat exchange section 12 to start and run at a preset speed so that the coolant circulates in the second heat exchange section 12 and the third heat exchange section 13 and uses the coolant to cool the charging device 500.

[0161] Specifically, the second heat exchange section 12 is connected to the third heat exchange section 13. The coolant circulates between the second heat exchange section 12 and the third heat exchange section 13. The coolant exchanges heat with the charging device 500 at the location of the charging device 500, and the charging device 500 is cooled. The temperature of the coolant rises, and the cooled coolant circulates to the third heat exchange section 13 to exchange heat with the air, thereby lowering the temperature of the coolant. The lowered temperature then participates in the cooling of the charging device 500.

[0162] The coolant circulating in the second heat exchange section 12 and the third heat exchange section 13 is driven by the third drive pump 126, and the flow rate of the coolant is controlled by controlling the rotation speed of the third drive pump 126. When the heat exchange demand of the charging device 500 is high, the rotation speed of the third drive pump 126 is increased; when the heat exchange demand of the charging device 500 is low, the rotation speed of the third drive pump 126 is decreased; if the charging device 500 does not need to cool, the third drive pump 126 is turned off. By controlling the third drive pump 126, it can be turned on as needed, thereby reducing energy consumption and shortening the operating time of the third drive pump 126.

[0163] The preset speed of the third drive pump 126 is set according to the specific heat dissipation requirements.

[0164] S326: Control the fourth drive pump 145 of the fourth heat exchange section 14 to start and run at a preset speed so that the coolant circulates in the third heat exchange section 13 and the fourth heat exchange section 14 so as to use the coolant to cool the second heat exchanger 211 of the refrigerant assembly 21.

[0165] Specifically, the fourth heat exchange section 14 is connected to the third heat exchange section 13. The coolant circulates between the fourth heat exchange section 14 and the third heat exchange section 13. The coolant exchanges heat with the refrigerant assembly 21 in the fourth heat exchange section 14, and the refrigerant in the refrigerant assembly 21 is cooled, causing the coolant temperature to rise. The cooled coolant then circulates to the third heat exchange section 13 to exchange heat with the air, causing the coolant temperature to drop. The cooled coolant then participates again in cooling the refrigerant in the refrigerant assembly 21.

[0166] The coolant circulating in the fourth heat exchange section 14 and the third heat exchange section 13 is driven by the fourth drive pump 145. The flow rate of the coolant is controlled by controlling the speed of the fourth drive pump 145. When the heat exchange demand of the refrigerant in the refrigerant assembly 21 is high, the speed of the fourth drive pump 145 is increased; when the heat exchange demand of the refrigerant in the refrigerant assembly 21 is low, the speed of the fourth drive pump 145 is decreased; if the refrigerant in the refrigerant assembly 21 does not need to cool, the fourth drive pump 145 is turned off. By controlling the fourth drive pump 145, it can be turned on as needed, thereby reducing energy consumption and shortening the operating time of the fourth drive pump 145.

[0167] The preset speed of the fourth drive pump 145 is set according to specific heat dissipation requirements.

[0168] S327: Match the number of connected heat dissipation pipes 131 in the third heat exchange section 13 according to the liquid inlet temperature of the third heat exchange section 13.

[0169] Specifically, the third heat exchange section 13 is used to exchange heat between the coolant and the air. During the heat exchange process of the coolant in the third heat exchange section, the heat exchange is carried out through the radiators 132 on each heat dissipation pipe 131. When the heat dissipation of the coolant is large, a large number of heat dissipation pipes 131 need to be opened. When the heat dissipation of the coolant is small, a small number of heat dissipation pipes 131 need to be opened. When the coolant does not need to dissipate heat, all heat dissipation pipes 131 of the third section can be closed.

[0170] The factor that determines the number of cooling pipes 131 to be opened is the inlet temperature of the third heat exchange section 13. This inlet temperature is obtained by a temperature measuring element installed on the second liquid collector 60. The number of cooling pipes 131 to be opened is determined by the measured temperature of the coolant in the second liquid collector 60. When the temperature is high, the number of cooling pipes 131 to be opened increases, and when the temperature is low, the number of cooling pipes 131 to be opened decreases.

[0171] S328: Based on the number of connected heat dissipation pipes 131, control the opening of the third control valve 134 on the corresponding heat dissipation pipe 131 and the opening of the cooling fan 133 of the radiator 132 of the corresponding third heat exchange section 13, and operate at a preset speed.

[0172] Specifically, during the heat exchange process of the third heat exchange section 13, the number of connected heat dissipation pipes 131 is determined by the coolant temperature at the second liquid collector 60. When the heat dissipation pipes 131 are started, the control device 80 controls the third control valve 134 to open the corresponding heat dissipation pipe 131. At this time, the radiator 132 on the heat dissipation pipe 131 exchanges heat with the coolant, and the cooling fan 133 corresponding to the radiator 132 runs. When the speed of the cooling fan 133 is high, the radiator 132 has a strong heat dissipation capacity for the coolant, which can improve the heat dissipation efficiency. When the speed of the cooling fan 133 is slow, the radiator 132 has a poor heat dissipation capacity for the coolant, which can reduce the heat dissipation efficiency. The preset speed of the cooling fan 133 is set according to the specific heat dissipation requirements.

[0173] Specifically, the four-way reversing valve 15 is switched to the first state, so that the first heat exchange section 11 forms separate coolant circulation paths. The third heat exchange section 13 is connected to the second heat exchange section 12 and the fourth heat exchange section 14 respectively. During operation, the first heat exchanger 212 of the refrigerant system 20 cools the coolant in the first heat exchange section 11. The cooled coolant circulates in the first heat exchange section 11 to cool the battery cluster 200, the battery compartment 300 and the duty room 400. The coolant in the third heat exchange section 13 also cools the second heat exchanger 211 of the refrigerant system 20 through the fourth heat exchange section 14. At the same time, the coolant in the third heat exchange section 13 cools the charging device 500 through the second heat exchange section 12.

[0174] Based on the above, while effectively cooling the battery cluster 200, battery compartment 300, duty room 400 and charging device 500, the external environment can be fully utilized, thus improving the energy-saving performance of the system and reducing the overall energy consumption of the thermal management system 100.

[0175] In some embodiments of this application, step S324 specifically includes the following steps:

[0176] S3241: Control the first three-way valve 1121 in the first heat exchange section 11 so that the first port of the first three-way valve 1121 is disconnected from the second heat exchange section 12, the second port of the first three-way valve 1121 is connected to the third main pipeline 1115 of the first heat exchange component 111 in the first heat exchange section 11, and the second port of the first three-way valve 1121 is connected to the third port of the first three-way valve 1121.

[0177] Specifically, the first heat exchange section 11 includes a first heat exchange component 111 and a second heat exchange component 112. The first heat exchange component 111 exchanges heat with the batteries in the battery cluster 200, and the second heat exchange component 112 exchanges heat with the battery compartment 300 and the duty room 400. The second heat exchange component 112 includes a first three-way valve 1121 and a second three-way valve 1126. The first three-way valve 1121 is used to control whether the second heat exchange component 112 is connected to the second heat exchange section 12 and / or the first heat exchange component 111, and the second three-way valve 1126 is used to control whether the heat exchange section of the duty room 400 is connected to the heat exchange section of the battery compartment 300.

[0178] In the first mode, the second heat exchange component 112 is connected in parallel with the first main pipeline 1112 and the third main pipeline 1115 of the first heat exchange component 111. The second heat exchange component 112 is disconnected from the second heat exchange section 12 so that the coolant in the first heat exchange component 111 after exchanging heat with the refrigerant component 21 can exchange heat with the battery in the battery cluster 200, the duty room 400 and the battery compartment 300 respectively, so as to achieve cooling of the battery, the duty room 400 and the battery compartment 300.

[0179] S3242: Control the second three-way valve 1126 in the first heat exchange section 11 so that the first port, the second port and the third port of the second three-way valve 1126 are connected in pairs.

[0180] Specifically, by controlling the second three-way valve 1126, the heat exchange part of the second heat exchange assembly 112 for the duty room 400 and the heat exchange part for the battery compartment 300 are connected in parallel, so that the coolant can exchange heat with the battery compartment 300 and the duty room 400 respectively.

[0181] S3243: Based on the heat exchange required by the battery cluster 200, battery compartment 300 and duty room 400, determine the number of branch pipes 1116 to be opened in the first heat exchange component 111 of the first heat exchange section 11.

[0182] Specifically, the number of branch pipes 1116 to be opened is determined based on the heat exchange, and the number of refrigerant components 21 to be opened is matched according to the number of branch pipes 1116 to reduce energy consumption. At the same time, it can extend the service life and reliability of the first drive pump 1117 and reduce the maintenance cost of the first drive pump 1117.

[0183] S3244: Based on the number of branch pipes 1116 that are opened, control the first drive pump 1117 on each branch pipe 1116 to open and run at a preset speed.

[0184] Specifically, the first drive pump 1117 on the designated branch pipe 1116 operates at a preset speed. When the heat exchange demand of the battery, the control room 400, and the battery compartment 300 is high, the speed of the first drive pump 1117 is increased; when the heat exchange demand of the first drive pump 1117 is low, the speed of the first drive pump 1117 is decreased. By controlling the first drive pump 1117, it can be turned on as needed, thereby reducing energy consumption and shortening the operating time of the first drive pump 1117.

[0185] The preset speed of the first drive pump 1117 is set according to the specific heat dissipation requirements.

[0186] S3245: Based on the number of branch pipes 1116 that are open, control the refrigerant component 21 corresponding to the opened branch pipe 1116 to start and operate in cooling mode.

[0187] Specifically, the number of branch pipes 1116 to be opened is determined based on the heat exchange, and the number of refrigerant components 21 to be opened is matched according to the number of branch pipes 1116 to reduce energy consumption. At the same time, it can extend the service life and reliability of the first drive pump 1117 and reduce the maintenance cost of the first drive pump 1117.

[0188] In some embodiments of this application, step S30 specifically includes the following steps:

[0189] S33: Determine whether the air temperature belongs to the second preset temperature range, where the second preset temperature range is [-40℃, 5℃].

[0190] Specifically, the control device 80 compares the ambient temperature of the environment where the battery swapping station 1000 is located with the second preset temperature range, and controls the refrigerant system 20 and the coolant system 10 based on the comparison results.

[0191] It is important to understand that during the comparison process, the air temperature is compared with the two endpoints of the second preset temperature range, that is, the air temperature is compared with -40℃ and 5℃ respectively. When -40℃ ≤ air temperature and air temperature ≤ 5℃, the air temperature is determined to be within the second preset temperature range. When the air temperature < -40℃ or the air temperature is greater than 5℃, the air temperature is determined not to be within the second preset temperature range.

[0192] S34: Based on the fact that the air temperature is within the second preset temperature range, the heat exchange requirement of the battery cluster 200 and the charging device 500 is cooling, while the heat exchange requirement of the battery compartment 300 and the duty room 400 is heating. The control system 10 and the refrigerant system 20 are operated in the second mode.

[0193] When the temperature falls within the second preset temperature range, the specific temperatures can be -40℃, -37℃, -33℃, -30℃, -27℃, -23℃, -20℃, -17℃, -13℃, -10℃, -7℃, -3℃, 0℃, 3℃, or 5℃.

[0194] Specifically, since the second preset temperature range is [-40℃, 5℃], it indicates that the air temperature is at a relatively high value, that is, the environment in which the battery swapping station 1000 is located is a low temperature environment. The batteries of the battery cluster 200 and the charging device 500 of the battery swapping station 1000 need to be cooled to reach a suitable operating temperature. At the same time, the battery compartment 300 and the duty room 400 of the battery swapping station 1000 need to be heated to reach a suitable operating temperature. Based on this, the coolant system 10 and the refrigerant system 20 are switched to the second mode so that the battery compartment 300, battery cluster 200, duty room 400 and charging device 500 can be heat-exchanged through the refrigerant system 20, the coolant system 10 and the external environment, so that the battery compartment 300, battery cluster 200, duty room 400 and charging device 500 can reach a suitable operating temperature, thereby improving the energy-saving performance of the system and reducing the overall energy consumption of the thermal management system 100.

[0195] In some embodiments of this application, step S34 specifically includes the following steps:

[0196] S341: Compare air temperature with a temperature threshold, wherein the temperature threshold is within a second preset temperature range.

[0197] The second preset temperature range is [-40℃, 5℃], and the temperature threshold is within the second preset temperature range, specifically -30℃, -27℃, -23℃, -20℃, -17℃, -13℃, -10℃, -5℃, -3℃, 0℃, and 3℃.

[0198] S342: Control the coolant system 10 and refrigerant system 20 to operate in the first sub-mode based on the air temperature being less than or equal to the temperature threshold.

[0199] S343: Based on the temperature being greater than the temperature threshold, control the coolant system 10 and the refrigerant system 20 to operate in the second sub-mode.

[0200] Specifically, a temperature threshold is set within the second preset temperature range, the air temperature is compared with the temperature threshold, and the coolant system 10 and refrigerant system 20 are controlled to operate in the first sub-mode or the second sub-mode based on the comparison result. This can improve the control accuracy and reduce the energy consumption of the thermal management system 100.

[0201] As shown in Figure 7, in some embodiments of this application, step S342 specifically includes the following steps:

[0202] S3421: Control the four-way reversing valve 15 in the coolant system 10 to switch to the second state so that the first heat exchange section 11 and the second heat exchange section 12 are connected to each other.

[0203] Specifically, when the first flow channel refrigerant system 20 and the coolant system 10 are running in the second mode, the four-way reversing valve 15 needs to be controlled. By switching the four-way reversing valve 15 to the second state, the first heat exchange section 11 and the second heat exchange section 12 are connected. The first heat exchange section 11, the second heat exchange section 12 and the third heat exchange section 13 form a closed circulation path. In this closed circulation path, the coolant circulates and uses the circulating coolant to exchange heat with the battery, battery compartment, charging device 500 and duty room 400 respectively, so that the battery and charging device 500 are cooled and the battery compartment and duty room 400 are heated.

[0204] S3422: Shut down the refrigerant system 20.

[0205] In the first sub-mode of the second mode, the temperature is low, and the entire system can be cooled by air. Therefore, the refrigerant system 20 is shut down, which can effectively reduce energy consumption.

[0206] S3423: Disconnect the first liquid collector 30 and the second liquid collector 60 in the control coolant system 10.

[0207] Specifically, the on / off valve 50 on the control connection pipe 40 is turned off, thereby disconnecting the first liquid collector 30 and the second liquid collector 60 from each other, and connecting the second heat exchange section 12 with the third heat exchange section 13 so that the coolant in the second heat exchange section 12 can circulate to the third heat exchange section 13 to exchange heat with the air.

[0208] S3424: The control unit connects the second heat exchange section 12 to the third heat exchange section 13 via the first liquid collector 30 and the second liquid collector 60. By connecting the third heat exchange section 13 to the second heat exchange section 12 via the first liquid collector 30 and the second liquid collector 60, the number of heat dissipation pipes 131 in the third heat exchange section 13 can be reduced while still satisfying heat exchange requirements, thereby effectively reducing energy consumption.

[0209] S3425: Control the coolant to circulate in the circulation path formed by the first heat exchange section 11, the second heat exchange section 12 and the third heat exchange section 13, so as to cool the battery cluster 200 and the charging device 500, and to heat the battery compartment 300 and the duty room 400.

[0210] In some embodiments of this application, step S3425 specifically includes the following steps:

[0211] S34251: Control the first three-way valve 1121 in the first heat exchange section 11, so that the first port of the first three-way valve 1121 is connected to the second heat exchange section 12, the second port of the first three-way valve 1121 is disconnected from the third main pipeline 1115 of the first heat exchange component 111 in the first heat exchange section 11, and the first port is connected to the third port of the first three-way valve 1121.

[0212] Specifically, in the first sub-mode of the second mode, the second heat exchange component 112 is disconnected from the first main pipeline 1112 of the first heat exchange component 111. The second heat exchange component 112 and the third main pipeline 1115 are respectively connected to the third pipeline 123 and the second heat exchange section 12. The second heat exchange component 112 is disconnected from the second heat exchange section 12 so that the coolant after being cooled by the third heat exchanger 11291 only cools the battery, and the coolant after exchanging heat with the charging device 500 heats the duty room 400 and the battery compartment 300.

[0213] S34252: Control the second three-way valve 1126 in the first heat exchange section 11 so that the first port, the second port and the third port of the second three-way valve 1126 are connected in pairs.

[0214] Specifically, by controlling the second three-way valve 1126, the heat exchange part of the second heat exchange assembly 112 for the duty room 400 and the heat exchange part for the battery compartment 300 are connected in parallel, so that the coolant can exchange heat with the battery compartment 300 and the duty room 400 respectively.

[0215] S34253: Determine the number of branch pipes 1116 to be opened in the first heat exchange component 111 of the first heat exchange section 11 based on the heat exchange required by the battery cluster 200.

[0216] Specifically, the number of branch pipes 1116 to be opened is determined based on the heat exchange, and the number of refrigerant components 21 to be opened is matched according to the number of branch pipes 1116 to reduce energy consumption. At the same time, it can extend the service life and reliability of the first drive pump 1117 and reduce the maintenance cost of the first drive pump 1117.

[0217] S34254: Based on the number of branch pipes 1116 that are opened, control the first drive pump 1117 on each branch pipe 1116 to open and run at a preset speed.

[0218] Specifically, the first drive pump 1117 on the designated branch pipe 1116 operates at a preset speed. When the heat exchange demand of the battery, the control room 400, and the battery compartment 300 is high, the speed of the first drive pump 1117 is increased; when the heat exchange demand of the first drive pump 1117 is low, the speed of the first drive pump 1117 is decreased. By controlling the first drive pump 1117, it can be turned on as needed, thereby reducing energy consumption and shortening the operating time of the first drive pump 1117.

[0219] The preset speed of the first drive pump 1117 is set according to the specific heat dissipation requirements.

[0220] S34255: Based on the heat exchange required by the battery compartment 300 and the duty room 400, control the second drive pump 1125 in the second heat exchange component 112 of the first heat exchange section 11 to start and run at a preset speed.

[0221] Specifically, when the second drive pump 1125 is running, the coolant after heat exchange with the charging unit is drawn to the position of the first three-way valve 1121. The coolant enters the second three-way valve 1126 through the first three-way valve 1121 and is distributed to the duty room 400 and the battery compartment 300 through the second three-way valve 1126, so as to use the coolant to heat the duty room 400 and the battery compartment 300.

[0222] When the heat exchange demand of the duty room 400 and the battery compartment 300 is high, the second drive pump 1125 is controlled to increase its speed. When the heat exchange demand of the second drive pump 1125 is low, the second drive pump 1125 is controlled to decrease its speed. By controlling the second drive pump 1125, the second drive pump 1125 can be turned on as needed, thereby reducing energy consumption and reducing the running time of the second drive pump 1125.

[0223] The preset speed of the second drive pump 1125 is set according to the specific heat dissipation requirements.

[0224] S34256: Based on the heat exchange required by the charging device 500, control the third drive pump 126 of the second heat exchange section 12 to start and run at a preset speed.

[0225] Specifically, when the heat exchange demand of the charging device 500 is high, the speed of the third drive pump 126 is increased; when the heat exchange demand of the third drive pump 126 is low, the speed of the third drive pump 126 is reduced. By controlling the third drive pump 126, the third drive pump 126 can be turned on as needed, thereby reducing energy consumption and reducing the running time of the third drive pump 126.

[0226] The preset speed of the third drive pump 126 is set according to the specific heat dissipation requirements.

[0227] S34257: Match the number of connected heat dissipation pipes 131 in the third heat exchange section 13 according to the liquid inlet temperature of the third heat exchange section 13.

[0228] Specifically, the third heat exchange section 13 is used to exchange heat between the coolant and the air. During the heat exchange process of the coolant in the third heat exchange section, the heat exchange is carried out through the radiators 132 on each heat dissipation pipe 131. When the heat dissipation of the coolant is large, a large number of heat dissipation pipes 131 need to be opened. When the heat dissipation of the coolant is small, a small number of heat dissipation pipes 131 need to be opened. When the coolant does not need to dissipate heat, all heat dissipation pipes 131 of the third section can be closed.

[0229] The factor that determines the number of cooling pipes 131 to be opened is the inlet temperature of the third heat exchange section 13. This inlet temperature is obtained by a temperature measuring element installed on the second liquid collector 60. The number of cooling pipes 131 to be opened is determined by the measured temperature of the coolant in the second liquid collector 60. When the temperature is high, the number of cooling pipes 131 to be opened increases, and when the temperature is low, the number of cooling pipes 131 to be opened decreases.

[0230] S34258: Based on the number of connected heat dissipation pipes 131, control the opening of the third control valve 134 on the corresponding heat dissipation pipe 131 and the opening of the cooling fan 133 of the radiator 132 of the corresponding third heat exchange section 13, and run it at a preset speed.

[0231] Specifically, during the heat exchange process of the third heat exchange section 13, the number of connected heat dissipation pipes 131 is determined by the coolant temperature at the second liquid collector 60. When the heat dissipation pipes 131 are started, the control device 80 controls the third control valve 134 to open the corresponding heat dissipation pipe 131. At this time, the radiator 132 on the heat dissipation pipe 131 exchanges heat with the coolant, and the cooling fan 133 corresponding to the radiator 132 runs. When the speed of the cooling fan 133 is high, the radiator 132 has a strong heat dissipation capacity for the coolant, which can improve the heat dissipation efficiency. When the speed of the cooling fan 133 is slow, the radiator 132 has a poor heat dissipation capacity for the coolant, which can reduce the heat dissipation efficiency. The preset speed of the cooling fan 133 is set according to the specific heat dissipation requirements.

[0232] Specifically, the four-way reversing valve 15 is switched to the second state, connecting the first heat exchange section 11 and the second heat exchange section 12. At this time, the ambient temperature can meet the cooling requirements of the batteries in the battery cluster 200 and the charging device 500. Meanwhile, the heat generated by the charging device 500 during charging can meet the heating requirements of the battery compartment 300 and the duty room 400. Therefore, under the premise of shutting off the refrigerant system 20, by controlling the relevant pipe valves of the coolant system 10, the heat exchange requirements of the battery cluster 200, the battery compartment 300, the duty room 400 and the charging device 500 are effectively met, thereby effectively reducing the energy consumption of the thermal management system 100.

[0233] As shown in Figure 8, in some embodiments of this application, step S343 specifically includes the following steps:

[0234] S3431: Control the four-way reversing valve 15 in the coolant system 10 to switch to the second state so that the first heat exchange section 11 and the second heat exchange section 12 are connected to each other.

[0235] Specifically, when the first flow channel refrigerant system 20 and the coolant system 10 are running in the second mode, the four-way reversing valve 15 needs to be controlled. By switching the four-way reversing valve 15 to the second state, the first heat exchange section 11 and the second heat exchange section 12 are connected. The first heat exchange section 11, the second heat exchange section 12 and the third heat exchange section 13 form a closed circulation path. In this closed circulation path, the coolant circulates and uses the circulating coolant to exchange heat with the battery, battery compartment, charging device 500 and duty room 400 respectively, so that the battery and charging device 500 are cooled and the battery compartment and duty room 400 are heated.

[0236] S3432: Control at least a portion of the refrigerant components 21 in the refrigerant system 20 to operate in cooling mode. In the second sub-mode of the second mode, the air temperature is insufficient to meet the cooling requirements of the coolant, therefore the refrigerant system 20 is operated to meet the system's heat exchange requirements.

[0237] S3433: Disconnect the first collector 30 and the second collector 60 in the coolant system 10. Specifically, control the on / off valve 50 on the connecting pipe 40 to be in the off state, thereby disconnecting the first collector 30 and the second collector 60 from each other, and thus connecting the second heat exchange section 12 and the third heat exchange section 13 so that the coolant in the second heat exchange section 12 can circulate to the third heat exchange section 13 to exchange heat with the air.

[0238] S3434: The control unit connects the second heat exchange section 12 to the third heat exchange section 13 via the first liquid collector 30 and the second liquid collector 60. By connecting the third heat exchange section 13 to the second heat exchange section 12 via the first liquid collector 30 and the second liquid collector 60, the number of heat dissipation pipes 131 in the third heat exchange section 13 can be reduced while still meeting heat exchange requirements, thereby effectively reducing energy consumption.

[0239] S3435: Control the coolant to circulate in the circulation path formed by the first heat exchange section 11, the second heat exchange section 12 and the third heat exchange section 13, so as to cool the battery cluster 200 and the charging device 500, and to heat the battery compartment 300 and the duty room 400.

[0240] Specifically, the four-way reversing valve 15 is switched to the second state, connecting the first heat exchange section 11 and the second heat exchange section 12. At this time, the ambient temperature can meet the cooling requirements of the charging device 500, but the ambient temperature is insufficient to meet the cooling requirements of the batteries in the battery cluster 200. Based on this, at least some of the refrigerant components 21 in the refrigerant system 20 are started, and the refrigerant components 21 are used to assist in cooling the batteries in the battery cluster 200. The third heat exchange section 13 cools down the operating refrigerant components 21 through the fourth heat exchange section 14. The heat generated by the charging device 500 during the charging process can meet the heating requirements of the battery compartment 300 and the duty room 400. The cold door component assists the coolant component in heat exchange, which can reduce the running time of the refrigerant component 21, thereby effectively reducing the energy consumption of the thermal management system 100.

[0241] In some embodiments of this application, step S3435 specifically includes the following steps:

[0242] S34351: Control the first three-way valve 1121 in the first heat exchange section 11, so that the first port of the first three-way valve 1121 is connected to the second heat exchange section 12, the second port of the first three-way valve 1121 is disconnected from the third main pipeline 1115 of the first heat exchange component 111 in the first heat exchange section 11, and the first port is connected to the third port of the first three-way valve 1121.

[0243] Specifically, in the second sub-mode of the second mode, the second heat exchange component 112 is disconnected from the first main pipeline 1112 of the first heat exchange component 111, and the second heat exchange component 112 and the third main pipeline 1115 are respectively connected to the third pipeline 123 and the second heat exchange section 12. The second heat exchange component 112 is disconnected from the second heat exchange section 12 so that the coolant after being cooled by the third heat exchanger 11291 only cools the battery, and the coolant after exchanging heat with the charging device 500 heats the duty room 400 and the battery compartment 300.

[0244] S34352: Control the second three-way valve 1126 in the first heat exchange section 11 so that the first port, the second port and the third port of the second three-way valve 1126 are connected in pairs.

[0245] Specifically, by controlling the second three-way valve 1126, the heat exchange part of the second heat exchange assembly 112 for the duty room 400 and the heat exchange part for the battery compartment 300 are connected in parallel, so that the coolant can exchange heat with the battery compartment 300 and the duty room 400 respectively.

[0246] S34353: Determine the number of branch pipes 1116 to be opened in the first heat exchange component 111 of the first heat exchange section 11 based on the heat exchange required by the battery cluster 200.

[0247] Specifically, the number of branch pipes 1116 to be opened is determined based on the heat exchange, and the number of refrigerant components 21 to be opened is matched according to the number of branch pipes 1116 to reduce energy consumption. At the same time, it can extend the service life and reliability of the first drive pump 1117 and reduce the maintenance cost of the first drive pump 1117.

[0248] S34354: Based on the number of branch pipes 1116 that are opened, control the first drive pump 1117 on each branch pipe 1116 to open and run at a preset speed.

[0249] Specifically, the first drive pump 1117 on the designated branch pipe 1116 operates at a preset speed. When the heat exchange demand of the battery, the control room 400, and the battery compartment 300 is high, the speed of the first drive pump 1117 is increased; when the heat exchange demand of the first drive pump 1117 is low, the speed of the first drive pump 1117 is decreased. By controlling the first drive pump 1117, it can be turned on as needed, thereby reducing energy consumption and shortening the operating time of the first drive pump 1117.

[0250] The preset speed of the first drive pump 1117 is set according to the specific heat dissipation requirements.

[0251] S34355: Based on the fact that the heat exchange required by the battery cluster 200 is greater than the amount of coolant supplied, at least a portion of the refrigerant components 21 corresponding to the opened branch pipes 1116 are controlled to start and operate in cooling mode. By operating the refrigerant components 21, the coolant in the first heat exchange component 111 is further cooled, so that the coolant can meet the cooling requirements of the battery.

[0252] S34356: Based on the heat exchange required by the battery compartment 300 and the duty room 400, control the second drive pump 1125 in the second heat exchange component 112 of the first heat exchange section 11 to start and run at a preset speed.

[0253] S34357: Based on the heat exchange required by the charging device 500, control the third drive pump 126 of the second heat exchange section 12 and the fourth drive pump 145 of the fourth heat exchange section 14 to start and run at a preset speed.

[0254] Specifically, in the second sub-mode, the air temperature cannot completely cool the coolant in the first heat exchange component 111. Therefore, at least a portion of the refrigerant components 21 need to be activated. When the refrigerant components 21 are running, the fourth heat exchange section 14, driven by the fourth drive pump 145, circulates the coolant between the third heat exchange section 13 and the fourth heat exchange section 14. When the heat exchange demand of the battery is high, the speed of the fourth drive pump 145 is increased. When the heat exchange demand of the fourth drive pump 145 is low, the speed of the fourth drive pump 145 is decreased. By controlling the fourth drive pump 145, it can be turned on as needed, thereby reducing energy consumption and shortening the running time of the fourth drive pump 145.

[0255] The preset speed of the fourth drive pump 145 is set according to specific heat dissipation requirements.

[0256] S34358: Match the number of connected heat dissipation pipes 131 in the third heat exchange section 13 according to the liquid inlet temperature of the third heat exchange section 13.

[0257] Specifically, the third heat exchange section 13 is used to exchange heat between the coolant and the air. During the heat exchange process of the coolant in the third heat exchange section, the heat exchange is carried out through the radiators 132 on each heat dissipation pipe 131. When the heat dissipation of the coolant is large, a large number of heat dissipation pipes 131 need to be opened. When the heat dissipation of the coolant is small, a small number of heat dissipation pipes 131 need to be opened. When the coolant does not need to dissipate heat, all heat dissipation pipes 131 of the third section can be closed.

[0258] The factor that determines the number of cooling pipes 131 to be opened is the inlet temperature of the third heat exchange section 13. This inlet temperature is obtained by a temperature measuring element installed on the second liquid collector 60. The number of cooling pipes 131 to be opened is determined by the measured temperature of the coolant in the second liquid collector 60. When the temperature is high, the number of cooling pipes 131 to be opened increases, and when the temperature is low, the number of cooling pipes 131 to be opened decreases.

[0259] S34359: Based on the number of connected heat dissipation pipes 131, control the opening of the third control valve 134 on the corresponding heat dissipation pipe 131 and the opening of the cooling fan 133 of the radiator 132 of the corresponding third heat exchange section 13, and operate at a preset speed.

[0260] Specifically, during the heat exchange process of the third heat exchange section 13, the number of connected heat dissipation pipes 131 is determined by the coolant temperature at the second liquid collector 60. When the heat dissipation pipes 131 are started, the control device 80 controls the third control valve 134 to open the corresponding heat dissipation pipe 131. At this time, the radiator 132 on the heat dissipation pipe 131 exchanges heat with the coolant, and the cooling fan 133 corresponding to the radiator 132 runs. When the speed of the cooling fan 133 is high, the radiator 132 has a strong heat dissipation capacity for the coolant, which can improve the heat dissipation efficiency. When the speed of the cooling fan 133 is slow, the radiator 132 has a poor heat dissipation capacity for the coolant, which can reduce the heat dissipation efficiency. The preset speed of the cooling fan 133 is set according to the specific heat dissipation requirements.

[0261] Specifically, the four-way reversing valve 15 is switched to the second state, so that the first heat exchange section 11 and the second heat exchange section 12 are connected. At this time, the ambient temperature can meet the cooling requirements of the charging device 500, but the ambient temperature is insufficient to meet the cooling requirements of the batteries in the battery cluster 200. On this basis, in the second sub-mode of the coolant system 10 and the refrigerant system 20, by operating at least a portion of the refrigerant components 21 and controlling the relevant pipe valves of the coolant system 10, the heat exchange requirements of the battery cluster 200, the battery compartment 300, the duty room 400 and the charging device 500 are effectively met, thereby effectively reducing the energy consumption of the thermal management system 100.

[0262] As shown in Figure 9, in some embodiments of this application, the thermal management method further includes:

[0263] S40: Based on the charging operation of the charging device 500 in the operating parameters reaching the near-end stage, control the refrigerant system 20 to operate in cooling mode and control the coolant system 10 to operate in heat storage mode.

[0264] Specifically, based on big data analysis of system operation, when the battery swapping station 1000 is charging the battery to be charged, the control device 80 uses the coolant system 10 to recover and store the heat generated during the charging process of the charging device 500 when the charging operation is about to end, so that the stored energy can be used in the process of the thermal management system 100 running again, thereby further reducing the energy consumption of the thermal management system 100.

[0265] In some embodiments of this application, step S40 specifically includes the following steps:

[0266] S41: Control the four-way reversing valve 15 in the coolant system 10 to switch to the first state, so that the first heat exchange section 11 and the second heat exchange section 12 are disconnected from each other, so that the first heat exchange section 11 forms a closed circulation path.

[0267] S42: The first liquid collector 30 and the second liquid collector 60 in the control coolant system 10 are connected.

[0268] S43: Control the operation of the first heat exchange section 11 and control the refrigerant component 21 of the refrigerant system 20 to operate in the cooling mode, so that the first heat exchanger 212 of the refrigerant component 21 exchanges heat with the coolant in the first heat exchange section 11 to reduce the temperature of the coolant and use the cooled coolant to cool the battery cluster 200.

[0269] S44: Control the third drive pump 126 of the second heat exchange section 12 to start and run at a preset speed so that the coolant flows in the circulation loop formed by the second heat exchange section 12, the first liquid collector 30 and the second liquid collector 60, and uses the coolant to cool the charging device 500.

[0270] Specifically, the four-way reversing valve 15 is switched to the first state, so that the first heat exchange section 11 and the second heat exchange section 12 are disconnected from each other. At this time, the battery in the battery cluster 200 and the charging device 500 need to be cooled. The first heat exchange section 11 forms a closed flow path, and the running refrigerant component 21 cools the coolant in the first heat exchange section 11. After cooling, the battery is cooled. The heat generated by the charging device 500 is exchanged with the coolant in the second heat exchange section 12 and stored in the first liquid collection component 30, which is a heat preservation box. This realizes the recovery and storage of the heat released by the charging device 500, so that the stored energy can be used in the process of the thermal management system 100 running again, thereby further reducing the energy consumption of the thermal management system 100.

[0271] In some embodiments of this application, step S44 specifically includes the following steps:

[0272] S441: Control the first three-way valve 1121 in the first heat exchange section 11 so that the first port of the first three-way valve 1121 is disconnected from the second heat exchange section 12.

[0273] S442: Control the second drive pump 1125 in the second heat exchange assembly 112 of the first heat exchange section 11 to shut down.

[0274] S443: Determine the number of branch pipes 1116 to be opened in the first heat exchange component 111 of the first heat exchange section 11 based on the heat exchange required by the battery cluster 200.

[0275] S444: Based on the number of branch pipes 1116 that are opened, control the first drive pump 1117 on each branch pipe 1116 to open and run at a preset speed.

[0276] S445: Based on the number of branch pipes 1116 that are open, control at least a portion of the refrigerant components 21 corresponding to the opened branch pipes 1116 to start and operate in cooling mode.

[0277] Specifically, in heat storage mode, the temperature of the battery compartment 300 and the duty room 400 is suitable. At this time, the second drive pump 1125 is turned off, so that the second heat exchange component 112 in the first heat exchange section 11 does not participate in operation, thereby reducing energy consumption. The number of branch pipes 1116 to be opened is determined based on the heat exchange required by the battery cluster 200, and the number of refrigerant components 21 to be opened is matched according to the number of branch pipes 1116 to reduce energy consumption. At the same time, the service life and reliability of the first drive pump 1117 can be extended, and the maintenance cost of the first drive pump 1117 can be reduced.

[0278] As shown in Figures 10 to 15, in some embodiments of this application, the thermal management method further includes:

[0279] S50: Receives a restart command and responds to the restart command.

[0280] S60: Based on the current parameters that the downtime is greater than or equal to the preset time, the coolant temperature is less than the first preset temperature, and the battery temperature in the battery cluster 200 is less than the second preset temperature, control the coolant system 10 to switch to low-temperature wake-up mode to heat the battery cluster 200, battery compartment 300, and duty room 400, wherein both the first preset temperature and the second preset temperature are less than zero, and the first preset temperature is less than the second preset temperature.

[0281] S70: Based on the current parameters, the downtime is greater than or equal to the preset time. The first liquid collector 30 is a heat preservation box. The temperature of the coolant in the first liquid collector 30 is greater than the third preset temperature, and the temperature of the battery in the battery cluster 200 is less than the second preset temperature. Control the coolant system 10 to switch to the first mixed heating mode to heat the battery cluster 200, battery compartment 300, and duty room 400. The third preset temperature is greater than zero.

[0282] S80: Based on the current parameters that the downtime is greater than or equal to the preset time, the temperature of the coolant in the first liquid collector 30 is less than the fourth preset temperature, and the temperature of the battery in the battery cluster 200 is less than the second preset temperature, the coolant system 10 is controlled to switch to the second mixed heating mode to heat the battery cluster 200, battery compartment 300, and duty room 400, wherein the fourth preset temperature is greater than zero and less than the third preset temperature;

[0283] S90: Based on the current parameters that the downtime is greater than or equal to the preset time, the temperature of the coolant in the first liquid collector 30 is less than the fifth preset temperature, and the temperature of the battery in the battery cluster 200 is less than the second preset temperature, the coolant system 10 is controlled to switch to the third mixed heating mode to heat the battery cluster 200, battery compartment 300, and duty room 400, wherein the fifth preset temperature is less than the second preset temperature.

[0284] It should be understood that in this application, the preset duration can be 3 hours, 5 hours, 8 hours, 12 hours, 16 hours, 24 hours, etc.

[0285] The specific values ​​of the first preset temperature can be calibrated as needed, for example, -20℃. The specific values ​​of the second preset temperature can be calibrated as needed, for example, 0℃. The specific values ​​of the third preset temperature can be calibrated as needed, for example, 20℃. The specific values ​​of the fourth preset temperature can be calibrated as needed, for example, 15℃. The specific values ​​of the fifth preset temperature can be calibrated as needed, for example, -5℃.

[0286] Specifically, when the thermal management system 100 is started for the second time, the operating mode is set according to the shutdown duration and the temperature of the coolant. This can improve the control accuracy and reduce the energy consumption of the thermal management system 100.

[0287] As shown in Figure 10, in some embodiments of this application, step S60 specifically includes the following steps:

[0288] S61: Control the four-way reversing valve 15 in the coolant system 10 to switch to the first state so that the first heat exchange section 11 and the second heat exchange section 12 are disconnected from each other, so that the first heat exchange section 11 forms a closed circulation path.

[0289] S62: Control the first three-way valve 1121 in the first heat exchange section 11 so that the first port of the first three-way valve 1121 is disconnected from the second heat exchange section 12, the second port of the first three-way valve 1121 is connected to the third main pipeline 1115 of the first heat exchange component 111 in the first heat exchange section 11, and the second port of the first three-way valve 1121 is connected to the third port of the first three-way valve 1121.

[0290] S63: Control the second three-way valve 1126 in the first heat exchange section 11 so that the first port, the second port and the third port of the second three-way valve 1126 are connected in pairs.

[0291] S64: Control the heating element 1119 of the first heat exchange component 111 in the first heat exchange section 11 to start and run.

[0292] S65: Control the first drive pump 1117 on each branch pipe 1116 of the first heat exchange section 11 to start and run at a preset speed.

[0293] S66: Control the second drive pump 1125 of the second heat exchange component 112 in the first heat exchange section 11 to start and run at a preset speed.

[0294] Specifically, in the low-temperature wake-up mode, the batteries in the battery cluster 200, the duty room 400, and the battery compartment 300 all require heating. At this time, the ambient temperature cannot meet the operation of the refrigerant system 20, so the coolant cannot perform the heating operation. The heating element 1119 is used to heat the coolant to raise its temperature, and the heated coolant is used to heat the batteries in the battery cluster 200, the battery compartment 300, and the duty room 400, thereby meeting the start-up requirements of the thermal management system 100.

[0295] As shown in Figure 11, in some embodiments of this application, step S70 specifically includes the following:

[0296] S71: Control the four-way reversing valve 15 in the coolant system 10 to switch to the second state so that the first heat exchange section 11 and the second heat exchange section 12 are connected to each other.

[0297] S72: The first liquid collector 30 and the second liquid collector 60 in the control coolant system 10 are connected.

[0298] S73: Control the first three-way valve 1121 in the first heat exchange section 11 so that the first port of the first three-way valve 1121 is disconnected from the second heat exchange section 12, the second port of the first three-way valve 1121 is connected to the third main pipeline 1115 of the first heat exchange component 111 in the first heat exchange section 11, and the second port of the first three-way valve 1121 is connected to the third port of the first three-way valve 1121.

[0299] S74: Control the second three-way valve 1126 in the first heat exchange section 11 so that the first port, the second port and the third port of the second three-way valve 1126 are connected in pairs.

[0300] S75: Control the first drive pump 1117 on each branch pipe 1116 of the first heat exchange section 11 to start and run at a preset speed.

[0301] S76: Control the second drive pump 1125 of the second heat exchange component 112 in the first heat exchange section 11 to start and run at a preset speed.

[0302] S77: Control the third drive pump 126 of the second heat exchange section 12 to start and run at a preset speed.

[0303] Specifically, in the first hybrid heating mode, the batteries in the battery cluster 200, the duty room 400, and the battery compartment 300 all require heating, while the charging device 500 requires cooling. The four-way reversing valve 15 is switched to the second state, so that the coolant flows in the first heat exchange section 11 and the second heat exchange section 12. The refrigerant system 20 is shut off. The heat released by the charging device 500 and the heat stored in the first liquid collection component 30 of the insulation box are circulated to the first heat exchange section 11 through the coolant. The first heat exchange section 11 heats the batteries in the battery cluster 200, the battery compartment 300, and the duty room 400, thereby achieving full utilization of heat and reducing the energy consumption of the thermal management system 100.

[0304] As shown in Figure 12, in some embodiments of this application, step S80 specifically includes the following:

[0305] S801: Control the four-way reversing valve 15 in the coolant system 10 to switch to the first state, so that the first heat exchange section 11 and the second heat exchange section 12 are disconnected from each other, so that the first heat exchange section 11 forms a closed circulation path.

[0306] S802: The first liquid collector 30 and the second liquid collector 60 in the control coolant system 10 are connected.

[0307] S803: Control the first three-way valve 1121 in the first heat exchange section 11 so that the first port of the first three-way valve 1121 is disconnected from the second heat exchange section 12, the second port of the first three-way valve 1121 is connected to the third main pipeline 1115 of the first heat exchange component 111 in the first heat exchange section 11, and the second port of the first three-way valve 1121 is connected to the third port of the first three-way valve 1121.

[0308] S804: Control the second three-way valve 1126 in the first heat exchange section 11 so that the first port, the second port and the third port of the second three-way valve 1126 are connected in pairs.

[0309] S805: Based on the heat exchange required by the battery cluster 200, battery compartment 300 and duty room 400, determine the number of branch pipes 1116 to be opened in the first heat exchange component 111 of the first heat exchange section 11.

[0310] S806: Based on the number of branch pipes 1116 that are opened, control the first drive pump 1117 on each branch pipe 1116 to open and run at a preset speed.

[0311] S807: Based on the number of branch pipes 1116 that are opened, control the refrigerant assembly 21 corresponding to the opened branch pipe 1116 to start and operate in cooling mode, so that the coolant circulates in the first heat exchange section 11 and exchanges heat with the first heat exchanger 212 of the refrigerant assembly 21 to increase the temperature of the coolant, and use the heated coolant to heat the battery cluster 200, battery compartment 300 and duty room 400.

[0312] S808: Control the second drive pump 1125 of the second heat exchange component 112 in the first heat exchange section 11 to start and run at a preset speed.

[0313] S809: Control the third drive pump 126 of the second heat exchange section 12 to start and run at a preset speed.

[0314] S810: The fourth drive pump 145 of the fourth heat exchange section 14 in the control coolant system 10 is turned on and runs at a preset speed so that the coolant circulates in the third heat exchange section 13 and the fourth heat exchange section 14 so as to use the coolant to heat the second heat exchanger 211 of the refrigerant assembly 21.

[0315] Specifically, in the second hybrid heating mode, the batteries in the battery cluster 200, the duty room 400, and the battery compartment 300 all require heating, while the charging device 500 requires cooling. The four-way reversing valve 15 is switched to the first state, and the first heat exchange section 11 and the second heat exchange section 12 are disconnected from each other. The refrigerant assembly 21 operates to heat the coolant in the first heat exchange section 11, so as to use the heated coolant to heat the battery compartment 300, the battery cluster 200, and the duty room 400. The second heat exchange section 12 is connected to the fourth heat exchange section 14, and the coolant exchanges heat with the charging device 500 at the location of the charging device 500 to reduce the temperature of the charging device 500. The coolant after exchanging heat with the charging device 500 circulates to the fourth heat exchange section 14 to exchange heat with the refrigerant assembly 21 to cool down through the refrigerant assembly 21. This configuration enables the thermal management system 100 to meet the heat exchange needs of different locations in the battery swapping station 1000, thereby reducing energy waste and effectively lowering the energy consumption of the thermal management system 100.

[0316] As shown in Figure 13, in some embodiments of this application, step S90 specifically includes the following steps:

[0317] S901: Control the four-way reversing valve 15 in the coolant system 10 to switch to the first state so that the first heat exchange section 11 and the second heat exchange section 12 are disconnected from each other, so that the first heat exchange section 11 forms a closed circulation path.

[0318] S902: The first liquid collector 30 and the second liquid collector 60 in the control coolant system 10 are connected.

[0319] S903: Control the first three-way valve 1121 in the first heat exchange section 11 so that the first port of the first three-way valve 1121 is disconnected from the second heat exchange section 12, the second port of the first three-way valve 1121 is connected to the third main pipeline 1115 of the first heat exchange component 111 in the first heat exchange section 11, and the second port of the first three-way valve 1121 is connected to the third port of the first three-way valve 1121.

[0320] S904: Control the second three-way valve 1126 in the first heat exchange section 11 so that the first port, the second port and the third port of the second three-way valve 1126 are connected in pairs.

[0321] S905: Based on the heat exchange required by the battery cluster 200, battery compartment 300 and duty room 400, determine the number of branch pipes 1116 to be opened in the first heat exchange component 111 of the first heat exchange section 11.

[0322] S906: Based on the number of branch pipes 1116 that are opened, control the first drive pump 1117 on each branch pipe 1116 to open and run at a preset speed.

[0323] S907: Based on the number of branch pipes 1116 that are opened, control the refrigerant component 21 corresponding to the opened branch pipe 1116 to start and operate in cooling mode, so that the coolant circulates in the first heat exchange section 11 and exchanges heat with the first heat exchanger 212 of the refrigerant component 21 to increase the temperature of the coolant, and use the heated coolant to heat the battery cluster 200, battery compartment 300 and duty room 400.

[0324] S908: Control the second drive pump 1125 of the second heat exchange component 112 in the first heat exchange section 11 to start and run at a preset speed.

[0325] S909: Control the third drive pump 126 of the second heat exchange section 12 to start and run at a preset speed.

[0326] S910: The fourth drive pump 145 of the fourth heat exchange section 14 in the control coolant system 10 is turned on and runs at a preset speed so that the coolant circulates in the third heat exchange section 13 and the fourth heat exchange section 14 so as to heat the second heat exchanger 211 of the refrigerant assembly 21 using the coolant.

[0327] S911: Control the operation of the water-cooling component 70 in the coolant system 10. The coolant in the fourth heat exchange section 14 exchanges heat with the cooling water in the heat exchange component 72 of the water-cooling component 70, so that the coolant is heated at the location of the heat exchange component 72.

[0328] Specifically, in the third hybrid heating mode, the batteries in the battery cluster 200, the duty room 400, and the battery compartment 300 all require heating. Since the external environment cannot exchange heat with the refrigerant system 20, the four-way reversing valve 15 is switched to the first state, disconnecting the first heat exchange section 11 and the second heat exchange section 12. The refrigerant assembly 21 operates and heats the coolant in the first heat exchange section 11 through the first heat exchanger 212. The heated coolant is then used to heat the battery compartment 300, battery cluster 200, and duty room 400. The water-cooling assembly 70 is activated. After the fourth heat exchange section 14 exchanges heat with the water-cooling assembly 70, the temperature of the coolant rises. The heated coolant is then used to cool the second heat exchanger 211 of the refrigerant assembly 21. This configuration allows the thermal management system 100 to meet the heat exchange needs of different locations in the battery swapping station 1000, thereby reducing energy waste and effectively lowering the energy consumption of the thermal management system 100.

[0329] In some embodiments of this application, the step of controlling the operation of the water-cooling assembly 70 in the coolant system 10, and the coolant in the fourth heat exchange section 14 exchanging heat in the heat exchange component 72 of the water-cooling assembly 70 to raise the temperature of the coolant at the location of the heat exchange component 72, includes:

[0330] If the temperature of the cooling water in the water storage tank 71 of the water-cooling assembly 70 is greater than the first preset value, the first port of the three-way control valve 75 in the water-cooling assembly 70 is disconnected from the second port and connected to the third port.

[0331] The water supply pump 79 of the water-cooled component 70 is controlled to operate so that cooling water circulates between the heat exchange component 72 and the water storage tank 71;

[0332] According to the fact that the temperature of the cooling water in the water storage tank 71 is less than the second preset value, the first port of the three-way control valve 75 in the water cooling component 70 is connected to the second port and disconnected from the third port, wherein the second preset value is less than the first preset value.

[0333] The water supply pump 79 of the water-cooling component 70 is controlled to operate so that the cooling water in the water intake well 600 flows into the water storage tank 71 through the heat exchange component 72.

[0334] Specifically, in the third hybrid heating mode, the batteries in the battery cluster 200, the duty room 400, and the battery compartment 300 all require heating. Since the external environment cannot exchange heat with the refrigerant system 20, the four-way reversing valve 15 is switched to the first state, disconnecting the first heat exchange section 11 and the second heat exchange section 12. The refrigerant assembly 21 operates and heats the coolant in the first heat exchange section 11 through the first heat exchanger 212. The heated coolant is then used to heat the battery compartment 300, battery cluster 200, and duty room 400. The water-cooling assembly 70 is activated. After the fourth heat exchange section 14 exchanges heat with the water-cooling assembly 70, the temperature of the coolant rises. The heated coolant is then used to cool the second heat exchanger 211 of the refrigerant assembly 21. This configuration allows the thermal management system 100 to meet the heat exchange needs of different locations in the battery swapping station 1000, thereby reducing energy waste and effectively lowering the energy consumption of the thermal management system 100.

[0335] Specifically, the water-cooling component 70 can be configured to selectively use water from the water storage tank 71 or underground water, thereby making full use of the water-cooling component 70 to cool the refrigerant component 21, so that the refrigerant component 21 can operate stably.

[0336] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application.

[0337] In the embodiments of this application, as shown in Figures 1 to 5, this application proposes a thermal management system 100 for a battery swapping station 1000. The battery swapping station 1000 includes multiple locations for heat exchange, including a battery cluster 200, a battery compartment 300, a duty room 400, and a charging device 500. The thermal management system 100 includes a coolant system 10, a refrigerant system 20, and a control device 80. The coolant system 10 circulates coolant and includes a first heat exchange section 11, a second heat exchange section 12, and a third heat exchange section 13. The first heat exchange section 11 exchanges heat with the battery cluster 200, the battery compartment 300, and the duty room 400, respectively. The system is configured to exchange heat between the second heat exchange section 12 and the charging device 500, and between the third heat exchange section 13 and the air. The refrigerant system 20 is internally circulated with refrigerant, which can exchange heat with the coolant in the first heat exchange section 11 and the coolant in the third heat exchange section 13. The control device 80 is electrically connected to the coolant system 10 and the refrigerant system 20. The control device 80 is configured to control the start-up, shutdown, and operating status of the first heat exchange section 11, the second heat exchange section 12, the third heat exchange section 13, and the refrigerant system 20 based on the ambient temperature of the environment where the thermal management system 100 is located, the preset temperature range, and the amount of heat exchange required by multiple heat exchange locations.

[0338] Furthermore, the coolant system 10 also includes a first liquid collector 30, a second liquid collector 60, a fourth heat exchange section 14, a connecting pipe 40, and an on / off valve 50 electrically connected to the control device 80. The second heat exchange section 12, the third heat exchange section 13, and the fourth heat exchange section 14 are connected in parallel to the first liquid collector 30 and the second liquid collector 60, respectively. The coolant in the fourth heat exchange section 14 can exchange heat with the refrigerant in the refrigerant system 20. The first liquid collector 30 and the second liquid collector 60 are connected through the connecting pipe 40. The on / off valve 50 is installed on the connecting pipe 40 and is used to control the on / off state of the connecting pipe 40. The first liquid collector 30 is an insulation box.

[0339] Furthermore, the refrigerant system 20 includes at least one set of refrigerant components 21. Each refrigerant component 21 includes a refrigerant circulation pipeline, and a compressor 213, a first heat exchanger 212, and a second heat exchanger 211 respectively disposed on the refrigerant circulation pipeline. The first heat exchanger 212 is thermally connected to a first heat exchange section 11, and the second heat exchanger 211 is thermally connected to a third heat exchange section 13. The compressor 213 drives the refrigerant to flow in the circulation pipeline. Multiple sets of refrigerant components 21 are included, and at least a portion of the refrigerant components 21 also include a four-way valve 214. The four-way valve 214 is electrically connected to the control device 80 and is used to switch the flow direction of the refrigerant in the refrigerant circulation pipeline, thereby switching the first heat exchanger 212 and the second heat exchanger 211 between a condenser and an evaporator.

[0340] Furthermore, the coolant system 10 also includes a four-way reversing valve 15. The first heat exchange section 11 and the second heat exchange section 12 are respectively connected to the four-way reversing valve 15. The four-way reversing valve 15 is electrically connected to the control device 80. The four-way reversing valve 15 includes a first state and a second state that can be switched between each other. In the first state, the first heat exchange section 11 and the second heat exchange section 12 are disconnected from each other and form two coolant circulation paths. In the second state, the first heat exchange section 11 and the second heat exchange section 12 are connected and form a coolant circulation path.

[0341] Furthermore, the first heat exchange section 11 includes a first heat exchange component 111 and a second heat exchange component 112. The first heat exchange component 111 is connected to the four-way reversing valve 15 and is thermally connected to the first heat exchanger 212. The first heat exchange component is used to exchange heat with the battery cluster 200. The second heat exchange component 112 is arranged in parallel with the first heat exchange component 111. The second heat exchange component 112 is used to exchange heat with the battery compartment 300 and the duty room 400.

[0342] Furthermore, the first heat exchange assembly 111 includes a first heat exchange device, a first main pipeline 1112, a second main pipeline 1113, an expansion container 1114, a third main pipeline 1115, multiple branch pipelines 1116, multiple first drive pumps 1117, a first temperature measuring element 1118, and a heating element 1119. The first heat exchange device is used for thermally conductive connection with the battery cluster 200. The outlet of the first heat exchange device is connected to a four-way reversing valve 15 through the first main pipeline 1112, and one end of the second main pipeline 1113 is connected to a four-way valve 214. The expansion vessel 1114 is connected to the other end of the second main pipeline 1113, and the third main pipeline 1115 is connected to the inlet of the first heat exchanger. The expansion vessel 1114 is connected to the third main pipeline 1115 through multiple branch pipelines 1116. The number of branch pipelines 1116 is the same as the number of first heat exchangers 212. The branch pipelines 1116 are connected to the first heat exchangers 212. Each branch pipeline 1116 is equipped with a first drive pump 1117, and each first drive pump 1117 is electrically connected to the control device 80. A first temperature measuring element 1118 is installed on the third main pipeline 1115 and electrically connected to the control device 80. The first temperature measuring element 1118 is used to detect the temperature of the coolant flowing through the third main pipeline 1115. A heating element 1119 is installed on the third main pipeline 1115 and electrically connected to the control device 80. The heating element 1119 is used to heat the coolant flowing through the third main pipeline 1115.

[0343] The first heat exchange device includes a first main pipe 11111, a second main pipe 11114, multiple branch pipes 11112, multiple first heat exchange components, and multiple first control valves 11113. The first main pipe 11111 is connected to the third main pipe 1115, the second main pipe 11114 is connected to the first main pipe 1112, and the multiple branch pipes 11112 are connected in parallel between the first main pipe 11111 and the second main pipe 11114. The number of branch pipes 11112 is the same as the number of battery clusters 200. Each branch pipe 11112 is equipped with a first heat exchange component, which is used for thermal connection with the battery clusters 200. Each branch pipe 11112 is equipped with a first control valve 11113, which is electrically connected to the control device 80 and is used for opening and closing the branch pipe 11112.

[0344] Furthermore, the second heat exchange assembly 112 includes a first three-way valve 1121, a first pipe body 1122, a second pipe body 1123, a third pipe body 1124, a second drive pump 1125, a second three-way valve 1126, at least one second heat exchange element 1129, a fourth pipe body 1128, at least one third heat exchange element 11291, a fifth pipe body 1127, a sixth pipe body 11293, and a seventh pipe body 11292. The first three-way valve 1121 is electrically connected to the control device 80, and the control device 80 is capable of controlling the first three-way valve 1121. The connection path of 121 is as follows: one end of the first pipe 1122 is connected to the second heat exchange section 12, and the connection position is located downstream of the charging device 500; the other end of the first pipe 1122 is connected to the first interface of the first three-way valve 1121; one end of the first pipe 1122 is connected to the first main pipe 11111; the other end of the first pipe 1122 is connected to the second interface of the first three-way valve 1121; one end of the third pipe 1124 is connected to the third interface of the first three-way valve 1121; and the second drive pump 1125... The third tube 1124 is installed on the third tube body 1124 and electrically connected to the control device 80. The other end of the third tube 1124 is connected to the first interface of the second three-way valve 1126. The second three-way valve 1126 is electrically connected to the control device 80, and the control device 80 can control the connection path of the second three-way valve 1126. At least one second heat exchanger 1129 is installed in the duty room 400 and is used to exchange heat with the duty room 400. The second interface of the second three-way valve 1126 is connected to at least one second heat exchanger 1129 through the fourth tube 1128. The inlet of 29 is connected, and at least one third heat exchanger 11291 is installed in the battery compartment 300 and used to exchange heat with the battery compartment 300. The third port of the second three-way valve 1126 is connected to at least one third heat exchanger 11291 through the fifth pipe body 1127. The outlet of at least one third heat exchanger 11291 is connected to the first main pipeline 1112 through the sixth pipe body 11293. The outlet of at least one second heat exchanger 1129 is connected to the sixth pipe body 11293 through the seventh pipe body 11292.

[0345] Furthermore, the second heat exchange section 12 includes a first pipe 121, a second pipe 122, a third pipe 123, multiple branch pipes 124, multiple fourth heat exchange components, multiple second control valves 125, a third drive pump 126, and a second temperature measuring component 127. One end of the first pipe 121 is connected to the second liquid collecting unit 60, and the other end of the first pipe 121 is connected to the four-way reversing valve 15. One end of the second pipe 122 is connected to the four-way reversing valve 15, and one end of the third pipe 123 is connected to the first liquid collecting unit 30. The first pipe body 1122 is connected to the third pipe 123. Multiple branch pipes 124 are connected in parallel to the second pipe 122 and the third pipe 123. Between 23, the number of branch pipes 124 is consistent with the number of charging cabinets in the charging device 500. Each branch pipe 124 is equipped with a fourth heat exchanger, which is used for thermal connection with the charging cabinet. Each branch pipe 124 is equipped with a second control valve 125, which is electrically connected to the control device 80 and controls the on / off state of the branch pipe 124. A third drive pump 126 is installed on the third pipe 123 and is electrically connected to the control device 80. A second temperature measuring element 127 is installed on the third pipe 123 and is electrically connected to the control device 80. The second temperature measuring element 127 is used to detect the temperature of the coolant flowing through the third pipe 123.

[0346] Furthermore, the third heat exchange section 13 includes at least one heat dissipation pipe 131, a radiator 132, and a third control valve 134. At least one heat dissipation pipe 131 is connected between the first liquid collector 30 and the second liquid collector 60. Each heat dissipation pipe 131 is provided with a radiator 132, which is electrically connected to the control device 80. Each heat dissipation pipe 131 is provided with a third control valve 134, which is electrically connected to the control device 80 and is used to control the on / off state of the heat dissipation pipe 131.

[0347] Furthermore, the fourth heat exchange section 14 includes a first heat exchange pipe 141, a second heat exchange pipe 142, multiple heat exchange branches 143, a fourth control valve 144, and a fourth drive pump 145. One end of the first heat exchange pipe 141 is connected to the first liquid collector 30, and one end of the second heat exchange pipe 142 is connected to the second liquid collector 60. Multiple heat exchange branches 143 are connected in parallel between the first heat exchange pipe 141 and the second heat exchange pipe 142. The number of heat exchange branches 143 is the same as the number of first heat exchangers 212. Each first heat exchanger 212 is connected to another first heat exchanger 212. Each heat exchange branch 143 is provided with a fourth control valve 144. The fourth control valve 144 is electrically connected to the control device 80 and is used to control the on / off state of the heat exchange branch 143. The fourth drive pump 145 is located on the second heat exchange pipe 142 and is electrically connected to the control device 80.

[0348] Furthermore, the thermal management system 100 also includes a water-cooled component 70, which is thermally connected to the fourth heat exchange section 14. The water-cooled component 70 includes a water storage tank 71, a heat exchange component 72, a first water pipe 73, and a second water pipe 74. The water storage tank 71 is used to store groundwater. The heat exchange component 72 includes a first channel and a second channel. The first channel and the second channel are not connected to each other but can conduct heat to each other. The first channel is connected to the second heat exchange pipeline 142. One end of the first water pipe 73 is connected to the water storage tank 71. The other end of the second water pipe 74 is connected to one end of the second channel and the other end of the second water pipe 74 is connected to the water storage tank 71.

[0349] Furthermore, the water-cooling assembly 70 also includes a three-way control valve 75, a third water pipe 76, a fourth water pipe 77, and a water supply pump 79. The three-way control valve 75 is electrically connected to the control device 80, which can control the connection path of the three-way control valve 75. The other end of the second water pipe 74 is connected to the first interface of the three-way control valve 75. The second interface of the three-way control valve 75 is connected to the water storage tank 71 through the third water pipe 76. The third interface of the three-way control valve 75 is connected to the water intake well 600 through the fourth water pipe 77. The water supply pump 79 is located on the third water pipe 76 and is used to supply water from the water intake well 600 to the water storage tank 71.

[0350] Specifically, the thermal management system 100 in this application can exchange heat with the battery swapping station 1000 through a coolant system 10 and a refrigerant system 20, thereby simplifying the structure of the thermal management system 100 and effectively reducing energy consumption.

[0351] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

A thermal management system for a battery swapping station, the station comprising multiple locations for heat exchange, each location including a battery cluster, a battery compartment, a control room, and a charging device, wherein... The thermal management system includes: The coolant system circulates coolant and includes a first heat exchange section, a second heat exchange section, and a third heat exchange section. The first heat exchange section is configured to exchange heat with the battery cluster, the battery compartment, and the duty room, respectively. The second heat exchange section is configured to exchange heat with the charging device, and the third heat exchange section is configured to exchange heat with the air. The refrigerant system contains refrigerant circulating within it, which can exchange heat with the coolant in the first heat exchange section and the coolant in the third heat exchange section, respectively. The control device is electrically connected to the coolant system and the refrigerant system respectively. The control device is configured to control the start-up, shutdown and operation status of the first heat exchange section, the second heat exchange section, the third heat exchange section and the refrigerant system according to the ambient temperature of the environment where the thermal management system is located, the preset temperature range and the amount of heat exchange required by the plurality of heat exchange locations. The thermal management system as described in claim 1, wherein, The coolant system further includes a first liquid collector, a second liquid collector, a fourth heat exchange section, a connecting pipe, and an on / off valve electrically connected to the control device. The second, third, and fourth heat exchange sections are connected in parallel to the first and second liquid collectors, respectively. The coolant in the fourth heat exchange section can exchange heat with the refrigerant in the refrigerant system. The first and second liquid collectors are connected through the connecting pipe. The on / off valve is located on the connecting pipe and is used to control the on / off state of the connecting pipe. The thermal management system as described in claim 2, wherein, The first liquid collection device is an insulated box. The thermal management system as described in claim 2 or 3, wherein, The refrigerant system includes at least one set of refrigerant components. The refrigerant components include a refrigerant circulation pipeline and a compressor, a first heat exchanger, and a second heat exchanger respectively disposed on the refrigerant circulation pipeline. The first heat exchanger is thermally connected to the first heat exchange section, and the second heat exchanger is thermally connected to the third heat exchange section. The compressor is used to drive the refrigerant to flow in the circulation pipeline. The thermal management system as described in claim 4, wherein, The refrigerant assembly comprises multiple sets, and at least a portion of the refrigerant assembly further includes a four-way valve. The four-way valve is electrically connected to the control device and is used to switch the flow direction of the refrigerant in the refrigerant circulation pipeline, so that the first heat exchanger and the second heat exchanger switch between the condenser and the evaporator. The thermal management system as described in claim 4, wherein, The coolant system also includes a four-way reversing valve. The first heat exchange section and the second heat exchange section are respectively connected to the four-way reversing valve. The four-way reversing valve is electrically connected to the control device. The four-way reversing valve includes a first state and a second state that can be switched between each other. In the first state, the first heat exchange section and the second heat exchange section are disconnected from each other and form two coolant circulation paths. In the second state, the first heat exchange section and the second heat exchange section are connected and form one coolant circulation path. The thermal management system as described in claim 6, wherein, The first heat exchange section includes: The first heat exchange component is connected to the four-way reversing valve and thermally connected to the first heat exchanger. The first heat exchange component is used to exchange heat with the battery cluster. The second heat exchange component is arranged in parallel with the first heat exchange component, and the second heat exchange component is used to exchange heat between the battery compartment and the duty room. The thermal management system as described in claim 7, wherein, The first heat exchange component includes: A first heat exchange device is used to be thermally connected to the battery cluster; The first main pipeline connects the outlet of the first heat exchanger to the four-way reversing valve via the first main pipeline. The second main pipeline, one end of which is connected to the four-way valve; An expansion container, wherein the expansion container is connected to the other end of the second main pipeline; The third main pipeline is connected to the inlet of the first heat exchanger. Multiple branch pipes are provided, and the expansion vessel is connected to the third main pipe through the multiple branch pipes. The number of branch pipes is the same as the number of the first heat exchangers, and the branch pipes are connected to the first heat exchangers. Multiple first drive pumps are provided, with one first drive pump on each of the branch pipes, and each first drive pump is electrically connected to the control device. The thermal management system as described in claim 8, wherein, The first heat exchange component also includes: A first temperature measuring element is disposed on the third main pipeline and electrically connected to the control device. The first temperature measuring element is used to detect the temperature of the coolant flowing through the third main pipeline. A heating element is disposed on the third main pipeline and electrically connected to the control device. The heating element is used to heat the coolant flowing through the third main pipeline. The thermal management system as described in claim 8 or 9, wherein, The first heat exchange device includes: The first main pipeline is connected to the third main pipeline; The second main pipeline is connected to the first main pipeline; Multiple branch pipes are connected in parallel between the first main pipe and the second main pipe, and the number of branch pipes is the same as the number of battery clusters; Multiple first heat exchangers are provided, and each of the branch pipes is provided with a first heat exchanger. The first heat exchanger is used to be thermally connected to the battery cluster. Multiple first control valves are provided, with one first control valve on each of the branch pipes. The first control valve is electrically connected to the control device and is used to open or close the branch pipe. The thermal management system as described in claim 10, wherein, The second heat exchange component includes: A first three-way valve is electrically connected to the control device, and the control device is capable of controlling the connection path of the first three-way valve. The first tube has one end connected to the second heat exchange section and the connection position is located downstream of the charging device, and the other end of the first tube is connected to the first interface of the first three-way valve. The second pipe body, one end of the first pipe body is connected to the first main pipe, and the other end of the first pipe body is connected to the second interface of the first three-way valve. The third pipe body, one end of which is connected to the third interface of the first three-way valve; The second drive pump is mounted on the third pipe body and is electrically connected to the control device. The second three-way valve, the other end of the third pipe body is connected to the first interface of the second three-way valve, the second three-way valve is electrically connected to the control device, and the control device can control the connection path of the second three-way valve; At least one second heat exchanger, the at least one second heat exchanger being disposed in the duty room and for exchanging heat with the duty room; The fourth tube body connects the second port of the second three-way valve to the inlet of the at least one second heat exchanger through the fourth tube body. At least one third heat exchanger, the at least one third heat exchanger being disposed within the battery compartment and for exchanging heat with the battery compartment; The fifth tube body, through which the third port of the second three-way valve is connected to the at least one third heat exchanger; The outlet of the at least one third heat exchanger is connected to the first main pipeline through the sixth tube. The outlet of the at least one second heat exchanger is connected to the sixth tube through the seventh tube. The thermal management system as described in claim 11, wherein, The second heat exchange section includes: The first pipeline has one end connected to the second liquid collection element and the other end connected to the four-way reversing valve. The second pipeline, one end of which is connected to the four-way reversing valve; The third pipeline, one end of which is connected to the first liquid collecting device, and the first pipe body is connected to the third pipeline; Multiple branch pipelines are connected in parallel between the second pipeline and the third pipeline, and the number of branch pipelines is the same as the number of charging cabinets in the charging device. Multiple fourth heat exchangers are provided, with one fourth heat exchanger on each of the branch pipes, and the fourth heat exchangers are used for thermally conductive connection with the charging cabinet; Multiple second control valves are provided, with one second control valve on each of the branch pipelines. The second control valve is electrically connected to the control device and is used to control the on / off state of the branch pipeline. A third drive pump is installed on the third pipeline and is electrically connected to the control device. The second temperature measuring element is disposed on the third pipeline and electrically connected to the control device. The second temperature measuring element is used to detect the temperature of the coolant flowing through the third pipeline. The thermal management system according to any one of claims 2 to 12, wherein, The third heat exchange section includes: At least one heat dissipation pipe is connected between the first liquid collection device and the second liquid collection device; A radiator is provided on each of the aforementioned heat dissipation pipes, and the radiator is electrically connected to the control device; A third control valve is provided on each of the heat dissipation pipes. The third control valve is electrically connected to the control device and is used to control the on / off state of the heat dissipation pipe. The thermal management system according to any one of claims 4 to 13, wherein, The fourth heat exchange section includes: The first heat exchange pipeline, one end of which is connected to the first liquid collecting element; The second heat exchange pipeline has one end connected to the second liquid collection element; Multiple heat exchange branches are connected in parallel between the first heat exchange pipeline and the second heat exchange pipeline. The number of heat exchange branches is the same as the number of the first heat exchangers. Each first heat exchanger is connected to one first heat exchanger. A fourth control valve is provided on each of the heat exchange branches. The fourth control valve is electrically connected to the control device and is used to control the on / off state of the heat exchange branch. A fourth drive pump is located on the second heat exchange pipeline and is electrically connected to the control device. The thermal management system as described in claim 14, wherein, The thermal management system also includes a water-cooling component, which is thermally connected to the fourth heat exchange section. The thermal management system as described in claim 15, wherein, The water-cooling assembly includes: A water storage tank, the water storage tank being used to store groundwater; A heat exchange component, comprising a first channel and a second channel, wherein the first channel and the second channel are not connected to each other but can conduct heat to each other, and the first channel is connected to the second heat exchange pipeline; The first water pipe has one end connected to the water storage tank and the other end connected to one end of the second channel. The second water pipe has one end connected to the other end of the second channel, and the other end connected to the water storage tank. The thermal management system as described in claim 16, wherein, The water-cooling assembly also includes: A three-way control valve is electrically connected to the control device, which is capable of controlling the connection path of the three-way control valve. The other end of the second water pipe is connected to the first interface of the three-way control valve. The third water pipe connects the second interface of the three-way control valve to the water storage tank. The fourth water pipe connects the third port of the three-way control valve to the water intake well. A water supply pump is installed in the third water pipe and is used to supply water from the intake well to the water storage tank. A type of battery swapping station, wherein, The battery swapping station includes: A thermal management system, wherein the thermal management system is the thermal management system according to any one of claims 1 to 17; The system includes multiple heat exchange locations, including a battery compartment, a duty room, a charging device, and a battery cluster. The battery compartment, the duty room, and the battery cluster are respectively configured to exchange heat with a first heat exchange section in the coolant system of the thermal management system, and the charging device is configured to exchange heat with a second heat exchange section in the coolant system. A thermal management method, implemented through the battery swapping station of claim 18, wherein, The thermal management method includes: Obtain the environmental parameters of the environment where the battery swapping station is located; Obtain the current parameters of the battery swapping station; Based on the heat exchange demand in the current parameters and / or the air temperature in the environmental parameters being within a preset temperature range, the thermal management system is controlled to execute a preset control strategy corresponding to the preset temperature range and the heat exchange demand. The preset control strategy includes the first heat exchange section, the second heat exchange section, the third heat exchange section of the coolant system, and the start-up, shutdown, and operating status of the refrigerant system. The thermal management method as described in claim 19, wherein, Based on the heat exchange demand in the current parameters and / or the air temperature in the environmental parameters being within a preset temperature range, the thermal management system is controlled to execute a preset control strategy corresponding to the preset temperature range and the heat exchange demand. The preset control strategy includes the steps of starting / stopping and maintaining the operating status of the first heat exchange section, the second heat exchange section, the third heat exchange section of the coolant system, and the refrigerant system. Determine whether the air temperature belongs to a first preset temperature range, wherein the first preset temperature range is [10℃, 40℃]; Based on the fact that the air temperature falls within the first preset temperature range, and that the heat exchange requirements of the battery compartment, the battery cluster, the duty room, and the charging device are all for refrigeration, the control system for the coolant system and the refrigerant system is operated in the first mode. The thermal management method as described in claim 20, wherein, The step of controlling the coolant system and refrigerant system to operate in the first mode based on the fact that the air temperature belongs to a first preset temperature range, and that the heat exchange requirements of the battery compartment, the battery cluster, the duty room, and the charging device are all refrigeration, includes: The four-way reversing valve in the coolant system is switched to the first state to disconnect the first heat exchange section and the second heat exchange section from each other, so that the first heat exchange section forms a closed circulation path. The second heat exchange section is connected to the third heat exchange section through the first and second liquid collectors of the coolant system, respectively; and the fourth heat exchange section of the coolant system is connected to the third heat exchange section through the first and second liquid collectors, respectively. Control at least a portion of the refrigerant components in the refrigerant system to operate in cooling mode; The coolant is controlled to circulate in the first heat exchange section and exchange heat with the first heat exchanger of the refrigerant assembly to reduce the temperature of the coolant, and the cooled coolant is used to cool the battery cluster, the battery compartment and the duty room. The third drive pump of the second heat exchange section is controlled to start and run at a preset speed so that the coolant circulates in the second heat exchange section and the third heat exchange section, and the coolant is used to cool the charging device. The fourth drive pump of the fourth heat exchange section is controlled to start and run at a preset speed so that the coolant circulates in the third heat exchange section and the fourth heat exchange section, so as to cool the second heat exchanger of the refrigerant assembly using the coolant. The number of connected heat dissipation pipes in the third heat exchange section is matched according to the liquid inlet temperature of the third heat exchange section. Based on the number of connected heat dissipation pipes, the third control valve on the corresponding heat dissipation pipe is opened, and the cooling fan of the radiator in the corresponding third heat exchange section is turned on and runs at a preset speed. The thermal management method as described in claim 21, wherein, The step of controlling the circulation of coolant in the first heat exchange section and exchanging heat with the first heat exchanger of the refrigerant assembly to reduce the temperature of the coolant, and using the cooled coolant to cool the battery cluster, the battery compartment, and the duty room, includes: Control the first three-way valve in the first heat exchange section to disconnect the first port of the first three-way valve from the second heat exchange section, connect the second port of the first three-way valve to the third main pipeline of the first heat exchange component in the first heat exchange section, and connect the second port of the first three-way valve to the third port of the first three-way valve. Control the second three-way valve in the first heat exchange section so that the first port, the second port and the third port of the second three-way valve are connected in pairs; The number of branch pipes to be opened in the first heat exchange component of the first heat exchange section is determined based on the heat exchange required by the battery cluster, the battery compartment, and the duty room. Based on the number of branch pipes opened, control the first drive pump on each branch pipe to open and operate at a preset speed; Based on the number of branch pipes opened, the refrigerant components corresponding to the opened branch pipes are controlled to start and operate in cooling mode. The thermal management method according to any one of claims 19 to 22, wherein, Based on the heat exchange demand in the current parameters and / or the air temperature in the environmental parameters being within a preset temperature range, the thermal management system is controlled to execute a preset control strategy corresponding to the preset temperature range and the heat exchange demand. The preset control strategy includes the steps of starting / stopping and maintaining the operating status of the first heat exchange section, the second heat exchange section, the third heat exchange section of the coolant system, and the refrigerant system. Determine whether the air temperature belongs to the second preset temperature range, wherein the second preset temperature range is [-40℃, 5℃]; Based on the fact that the air temperature falls within the second preset temperature range, the heat exchange requirement of the battery cluster and the charging device is cooling, while the heat exchange requirement of the battery compartment and the duty room is heating. The control system for the coolant system and the refrigerant system operates in the second mode. The thermal management method as described in claim 23, wherein, In the step of controlling the operation of the coolant system and refrigerant system in the second mode, based on the premise that the air temperature falls within the second preset temperature range, the heat exchange requirement of the battery cluster and the charging device is cooling, and the heat exchange requirement of the battery compartment and the duty room is heating, the following steps are included: Compare the air temperature with a temperature threshold, wherein the temperature threshold is within the second preset temperature range; Based on the air temperature being less than or equal to the temperature threshold, the coolant system and refrigerant system are controlled to operate in the first sub-mode; Based on the air temperature being greater than the temperature threshold, the coolant system and refrigerant system are controlled to operate in the second sub-mode. The thermal management method as described in claim 23 or 24, wherein, The step of controlling the operation of the coolant system and refrigerant system in the first sub-mode based on the air temperature being less than or equal to the temperature threshold includes: The four-way reversing valve in the coolant system is switched to the second state so that the first heat exchange section and the second heat exchange section are connected to each other; Shut down the refrigerant system; The first and second liquid collectors in the coolant system are disconnected. The second heat exchange section is connected to the third heat exchange section via the first liquid collecting element and the second liquid collecting element, respectively. The coolant is controlled to circulate in a circulation path formed by the first heat exchange section, the second heat exchange section and the third heat exchange section, so as to cool the battery cluster and the charging device, and to heat the battery compartment and the duty room. The thermal management method as described in claim 25, wherein, The steps of controlling the coolant to circulate in a circulation path formed by the first heat exchange section, the second heat exchange section, and the third heat exchange section to cool the battery cluster and the charging device, and to heat the battery compartment and the duty room using the coolant, include: Control the first three-way valve in the first heat exchange section, so that the first port of the first three-way valve is connected to the second heat exchange section, the second port of the first three-way valve is disconnected from the third main pipeline of the first heat exchange component in the first heat exchange section, and the first port is connected to the third port of the first three-way valve. Control the second three-way valve in the first heat exchange section so that the first port, the second port and the third port of the second three-way valve are connected in pairs; Based on the heat exchange required by the battery cluster, determine the number of branch pipes to be opened in the first heat exchange component of the first heat exchange section. Based on the number of branch pipes opened, control the first drive pump on each branch pipe to open and operate at a preset speed; Based on the required heat exchange capacity of the battery compartment and the duty room, the second drive pump in the second heat exchange component of the first heat exchange section is controlled to start and run at a preset speed. Based on the heat exchange required by the charging device, the third drive pump of the second heat exchange section is controlled to start and run at a preset speed; The number of connected heat dissipation pipes in the third heat exchange section is matched according to the liquid inlet temperature of the third heat exchange section. Based on the number of connected heat dissipation pipes, the third control valve on the corresponding heat dissipation pipe is opened, and the cooling fan of the radiator in the corresponding third heat exchange section is turned on and runs at a preset speed. The thermal management method according to any one of claims 23 to 26, wherein, The step of controlling the coolant system and refrigerant system to operate in the second sub-mode based on the air temperature being greater than the temperature threshold includes: The four-way reversing valve in the coolant system is switched to the second state so that the first heat exchange section and the second heat exchange section are connected to each other; Control at least a portion of the refrigerant components in the refrigerant system to operate in cooling mode; The first and second liquid collectors in the coolant system are disconnected. The second heat exchange section is connected to the third heat exchange section via the first liquid collecting element and the second liquid collecting element, respectively. The coolant is controlled to circulate in a circulation path formed by the first heat exchange section, the second heat exchange section and the third heat exchange section, so as to cool the battery cluster and the charging device, and to heat the battery compartment and the duty room. The thermal management method as described in claim 27, wherein, The steps of controlling the coolant to circulate in a circulation path formed by the first heat exchange section, the second heat exchange section, and the third heat exchange section to cool the battery cluster and the charging device, and to heat the battery compartment and the duty room using the coolant, include: Control the first three-way valve in the first heat exchange section, so that the first port of the first three-way valve is connected to the second heat exchange section, the second port of the first three-way valve is disconnected from the third main pipeline of the first heat exchange component in the first heat exchange section, and the first port is connected to the third port of the first three-way valve. Control the second three-way valve in the first heat exchange section so that the first port, the second port and the third port of the second three-way valve are connected in pairs; Based on the heat exchange required by the battery cluster, determine the number of branch pipes to be opened in the first heat exchange component of the first heat exchange section. Based on the number of branch pipes opened, control the first drive pump on each branch pipe to open and operate at a preset speed; Based on the fact that the heat exchange required by the battery cluster is greater than the amount of coolant supplied, at least a portion of the refrigerant components corresponding to the opened branch pipes are controlled to start and operate in cooling mode; Based on the required heat exchange capacity of the battery compartment and the duty room, the second drive pump in the second heat exchange component of the first heat exchange section is controlled to start and run at a preset speed. Based on the heat exchange required by the charging device, the third drive pump of the second heat exchange section and the fourth drive pump of the fourth heat exchange section are controlled to start and run at a preset speed. The number of connected heat dissipation pipes in the third heat exchange section is matched according to the liquid inlet temperature of the third heat exchange section. Based on the number of connected heat dissipation pipes, the third control valve on the corresponding heat dissipation pipe is opened, and the cooling fan of the radiator in the corresponding third heat exchange section is turned on and runs at a preset speed. The thermal management method according to any one of claims 19 to 28, wherein, The thermal management method further includes: When the charging operation of the charging device reaches the near-end stage according to the operating parameters, the refrigerant system is controlled to operate in refrigeration mode, and the coolant system is controlled to operate in heat storage mode. The thermal management method as described in claim 29, wherein, The steps of controlling the refrigerant system to operate in cooling mode and controlling the coolant system to operate in heat storage mode when the charging operation of the charging device reaches the near-end stage according to the operating parameters include: The four-way reversing valve in the coolant system is switched to the first state to disconnect the first heat exchange section and the second heat exchange section from each other, so that the first heat exchange section forms a closed circulation path. The first and second liquid collectors in the coolant system are connected. The first heat exchange section is controlled to operate, and the refrigerant components of the refrigerant system are controlled to operate in cooling mode, so that the first heat exchanger of the refrigerant components exchanges heat with the coolant in the first heat exchange section to reduce the temperature of the coolant, and the cooled coolant is used to cool the battery cluster. The third drive pump of the second heat exchange section is controlled to start and run at a preset speed so that the coolant flows in the circulation loop formed by the second heat exchange section, the first liquid collector and the second liquid collector, and the charging device is cooled by the coolant. The thermal management method as described in claim 30, wherein, The steps of controlling the operation of the first heat exchange section and controlling the refrigerant assembly of the refrigerant system to operate in cooling mode, so that the first heat exchanger of the refrigerant assembly exchanges heat with the coolant in the first heat exchange section to reduce the temperature of the coolant, and using the cooled coolant to cool the battery cluster, include: Control the first three-way valve in the first heat exchange section so that the first port of the first three-way valve is disconnected from the second heat exchange section; The second drive pump in the second heat exchange component of the first heat exchange section is shut down; Based on the heat exchange required by the battery cluster, determine the number of branch pipes to be opened in the first heat exchange component of the first heat exchange section. Based on the number of branch pipes opened, control the first drive pump on each branch pipe to open and operate at a preset speed; Based on the number of branch pipes opened, at least a portion of the refrigerant components corresponding to the opened branch pipes are controlled to start and operate in cooling mode. The thermal management method according to any one of claims 19 to 31, wherein, The thermal management method further includes: Receive a restart command and respond to the restart command; Based on the current parameters that the downtime is greater than or equal to a preset time, the coolant temperature is less than a first preset temperature, and the battery temperature in the battery cluster is less than a second preset temperature, the coolant system is controlled to switch to a low-temperature wake-up mode to heat the battery cluster, the battery compartment, and the duty room. The first preset temperature and the second preset temperature are both less than zero, and the first preset temperature is less than the second preset temperature. Based on the current parameters, the downtime is greater than or equal to the preset time, the first liquid collection unit is an insulated box, the temperature of the coolant in the first liquid collection unit is greater than the third preset temperature, and the temperature of the battery in the battery cluster is less than the second preset temperature, the coolant system is controlled to switch to the first mixed heating mode to heat the battery cluster, the battery compartment, and the duty room, wherein the third preset temperature is greater than zero; Based on the current parameters, the shutdown duration is greater than or equal to a preset duration, the temperature of the coolant in the first liquid collection unit is less than a fourth preset temperature, and the temperature of the battery in the battery cluster is less than a second preset temperature. The coolant system is controlled to switch to a second mixed heating mode to heat the battery cluster, the battery compartment, and the duty room. The fourth preset temperature is greater than zero and less than the third preset temperature. Based on the current parameters, the shutdown duration is greater than or equal to a preset duration, the temperature of the coolant in the first liquid collector is less than a fifth preset temperature, and the temperature of the battery in the battery cluster is less than a second preset temperature. The coolant system is then controlled to switch to a third mixed heating mode to heat the battery cluster, the battery compartment, and the duty room, wherein the fifth preset temperature is less than the second preset temperature. The thermal management method as described in claim 32, wherein, Based on the current parameters that the shutdown duration is greater than or equal to a preset duration, the coolant temperature is less than a first preset temperature, and the battery temperature in the battery cluster is less than a second preset temperature, the coolant system is controlled to switch to a low-temperature wake-up mode to heat the battery cluster, the battery compartment, and the duty room. The step where both the first and second preset temperatures are less than zero, and the first preset temperature is less than the second preset temperature, includes: The four-way reversing valve in the coolant system is switched to the first state to disconnect the first heat exchange section and the second heat exchange section from each other, so that the first heat exchange section forms a closed circulation path. Control the first three-way valve in the first heat exchange section to disconnect the first port of the first three-way valve from the second heat exchange section, connect the second port of the first three-way valve to the third main pipeline of the first heat exchange component in the first heat exchange section, and connect the second port of the first three-way valve to the third port of the first three-way valve. Control the second three-way valve in the first heat exchange section so that the first port, the second port and the third port of the second three-way valve are connected in pairs; The heating element of the first heat exchange component in the first heat exchange section is started and operated. The first drive pump on each branch pipe of the first heat exchange section is turned on and runs at a preset speed. The second drive pump of the second heat exchange component in the first heat exchange section is turned on and runs at a preset speed. The thermal management method as described in claim 32 or 33, wherein, Based on the current parameters, where the shutdown duration is greater than or equal to a preset duration, the first liquid collection unit is an insulated box, the temperature of the coolant in the first liquid collection unit is greater than a third preset temperature, and the temperature of the batteries in the battery cluster is less than a second preset temperature, the coolant system is controlled to switch to a first mixed heating mode to heat the battery cluster, the battery compartment, and the duty room. The step where the third preset temperature is greater than zero includes: The four-way reversing valve in the coolant system is switched to the second state so that the first heat exchange section and the second heat exchange section are connected to each other; The first and second liquid collectors in the coolant system are connected. Control the first three-way valve in the first heat exchange section to disconnect the first port of the first three-way valve from the second heat exchange section, connect the second port of the first three-way valve to the third main pipeline of the first heat exchange component in the first heat exchange section, and connect the second port of the first three-way valve to the third port of the first three-way valve. Control the second three-way valve in the first heat exchange section so that the first port, the second port and the third port of the second three-way valve are connected in pairs; The first drive pump on each branch pipe of the first heat exchange section is turned on and runs at a preset speed. The second drive pump of the second heat exchange component in the first heat exchange section is controlled to start and run at a preset speed. The third drive pump of the second heat exchange section is turned on and runs at a preset speed. The thermal management method according to any one of claims 32 to 34, wherein, The step of controlling the coolant system to switch to a second hybrid heating mode to heat the battery cluster, the battery compartment, and the duty room, based on the current parameters that the shutdown duration is greater than or equal to a preset duration, the temperature of the coolant in the first liquid collector is less than a fourth preset temperature, and the temperature of the battery in the battery cluster is less than a second preset temperature, includes: The four-way reversing valve in the coolant system is switched to the first state to disconnect the first heat exchange section and the second heat exchange section from each other, so that the first heat exchange section forms a closed circulation path. The first and second liquid collectors in the coolant system are connected. Control the first three-way valve in the first heat exchange section to disconnect the first port of the first three-way valve from the second heat exchange section, connect the second port of the first three-way valve to the third main pipeline of the first heat exchange component in the first heat exchange section, and connect the second port of the first three-way valve to the third port of the first three-way valve. Control the second three-way valve in the first heat exchange section so that the first port, the second port and the third port of the second three-way valve are connected in pairs; The number of branch pipes to be opened in the first heat exchange component of the first heat exchange section is determined based on the heat exchange required by the battery cluster, the battery compartment, and the duty room. Based on the number of branch pipes opened, control the first drive pump on each branch pipe to open and operate at a preset speed; Based on the number of branch pipes opened, the refrigerant assembly corresponding to the opened branch pipes is controlled to start and operate in cooling mode, so that the coolant circulates in the first heat exchange section and exchanges heat with the first heat exchanger of the refrigerant assembly to increase the temperature of the coolant, and the heated coolant is used to heat the battery cluster, the battery compartment and the duty room. The second drive pump of the second heat exchange component in the first heat exchange section is controlled to start and run at a preset speed. The third drive pump of the second heat exchange section is controlled to start and run at a preset speed; The fourth drive pump of the fourth heat exchange section in the coolant system is turned on and runs at a preset speed to make the coolant circulate in the third heat exchange section and the fourth heat exchange section, so as to use the coolant to heat up the second heat exchanger of the refrigerant assembly. The thermal management method according to any one of claims 32 to 35, wherein, If, based on the current parameters, the shutdown duration is greater than or equal to a preset duration, the temperature of the coolant in the first liquid collector is less than a fifth preset temperature, and the temperature of the battery in the battery cluster is less than a second preset temperature, the coolant system is controlled to switch to a third mixed heating mode to heat the battery cluster, the battery compartment, and the duty room. The step of determining that the fifth preset temperature is less than the second preset temperature includes: The four-way reversing valve in the coolant system is switched to the first state to disconnect the first heat exchange section and the second heat exchange section from each other, so that the first heat exchange section forms a closed circulation path. The first and second liquid collectors in the coolant system are connected. Control the first three-way valve in the first heat exchange section to disconnect the first port of the first three-way valve from the second heat exchange section, connect the second port of the first three-way valve to the third main pipeline of the first heat exchange component in the first heat exchange section, and connect the second port of the first three-way valve to the third port of the first three-way valve. Control the second three-way valve in the first heat exchange section so that the first port, the second port and the third port of the second three-way valve are connected in pairs; The number of branch pipes to be opened in the first heat exchange component of the first heat exchange section is determined based on the heat exchange required by the battery cluster, the battery compartment, and the duty room. Based on the number of branch pipes opened, control the first drive pump on each branch pipe to open and operate at a preset speed; Based on the number of branch pipes opened, the refrigerant assembly corresponding to the opened branch pipes is controlled to start and operate in cooling mode, so that the coolant circulates in the first heat exchange section and exchanges heat with the first heat exchanger of the refrigerant assembly to increase the temperature of the coolant, and the heated coolant is used to heat the battery cluster, the battery compartment and the duty room. The second drive pump of the second heat exchange component in the first heat exchange section is controlled to start and run at a preset speed. The third drive pump of the second heat exchange section is controlled to start and run at a preset speed; The fourth drive pump of the fourth heat exchange section in the coolant system is turned on and runs at a preset speed so that the coolant circulates in the third heat exchange section and the fourth heat exchange section, so as to use the coolant to heat the second heat exchanger of the refrigerant assembly. The operation of the water-cooling components in the control coolant system is controlled. The coolant in the fourth heat exchange section exchanges heat with the cooling water in the heat exchange component of the water-cooling component, so that the coolant is heated at the location of the heat exchange component. The thermal management method as described in claim 36, wherein, In the step of controlling the operation of the water-cooled assembly in the coolant control system, the coolant in the fourth heat exchange section exchanges heat with the heat exchange component of the water-cooled assembly to raise the temperature of the coolant at the location of the heat exchange component, including: If the temperature of the cooling water in the water storage tank of the water-cooling assembly is greater than a first preset value, the first port of the three-way control valve in the water-cooling assembly is disconnected from the second port and connected to the third port. Control the operation of the water supply pump of the water-cooling component to circulate the cooling water between the heat exchange component and the water storage tank; Based on the fact that the temperature of the cooling water in the water storage tank is less than a second preset value, the first port of the three-way control valve in the water cooling assembly is connected to the second port and disconnected from the third port, wherein the second preset value is less than the first preset value; Control the operation of the water supply pump of the water-cooling component so that the cooling water in the water intake well flows into the water storage tank through the heat exchange component.

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