Immersed energy storage system and cooling regulation method

Abstract

The present application relates to an immersion energy storage system and a cooling and regulating method. The system includes a temperature detection unit, a control unit and a regulating unit; a liquid inlet and a liquid outlet are provided on the same side wall of the box body, the box body is separated into a first box body cavity and a second box body cavity by an isolation component, the liquid inlet and the liquid outlet are located in different box body cavities, a flow channel hole is provided between the first box body cavity and the second box body cavity, and a coolant flow channel is formed between the first box body cavity and the second box body cavity through the flow channel hole; the temperature detection unit is used to detect the cell temperature of the battery module; the control unit is used to match the current working mode indicated by each cell temperature for the regulating unit when it is determined that there is a target cell temperature greater than a preset cell temperature threshold among the cell temperatures, and control the regulating unit to be in the current working mode; the regulating unit is used to regulate the coolant circulating in the coolant flow channel in the current working mode. The use of this system can improve the regulating effect of the battery pack cooling regulation.

Description

Technical Field

[0001] The present application relates to the technical field of submerged energy storage, and in particular to an submerged energy storage system and a cooling and regulating method. Background Art

[0002] With the continuous development of science and technology, in the field of energy storage, immersion coolant technology has been widely used due to its characteristics of high heat dissipation efficiency, high heat dissipation stability and low heat dissipation cost. In conventional immersion coolant energy storage methods, cooling components are usually combined with coolant to guide the coolant to circulate between the inlet and outlet of the battery pack to achieve battery cooling, such as liquid cooling plates or liquid cooling pipelines.

[0003] At present, in the process of coolant flow in the battery pack, after the coolant enters the battery pack body through the liquid inlet, the fixed cooling component guides the coolant immersed in the body to flow naturally, and finally discharges it through the liquid outlet. However, due to the large coolant immersion area in the battery pack body, the coolant temperature difference in different coolant immersion intervals is large when the coolant flows slowly in the body, which makes it easy for flow dead zones to appear in the coolant reflux or blockage areas. Therefore, the current battery pack cooling adjustment has a poor adjustment effect. Summary of the invention

[0004] Based on this, it is necessary to provide an immersion energy storage system, method, computer device and computer-readable storage medium for improving the cooling effect of battery packs in order to solve the above technical problems.

[0005] In a first aspect, the present application provides an immersion energy storage system, the system comprising a temperature detection unit, a control unit and an adjustment unit installed in a battery pack, the control unit being communicatively connected to the temperature detection unit and the adjustment unit respectively, wherein the battery pack comprises a box, a plurality of battery modules and an isolation assembly disposed in the box, the box and the isolation assembly being fixedly connected, the battery modules being arranged at intervals in the box, and a cooling liquid for immersing the battery modules is disposed in the box; wherein,

[0006] A liquid inlet and a liquid outlet are provided on the same side wall of the box body, the box body is separated into a first box body cavity and a second box body cavity by the isolation component, the liquid inlet is located in the first box body cavity, the liquid outlet is located in the second box body cavity, a flow channel hole is provided between the first box body cavity and the second box body cavity, a coolant flow channel is formed between the first box body cavity and the second box body cavity through the flow channel hole, and the coolant circulates along the coolant flow channel from the liquid inlet to the liquid outlet;

[0007] The temperature detection unit is used to detect the temperature of the battery cells of each battery module;

[0008] The control unit is configured to, when determining that there is a target cell temperature greater than a preset cell temperature threshold among the cell temperatures, match the current working mode indicated by each of the cell temperatures to the adjustment unit, and control the adjustment unit to be in the current working mode;

[0009] The regulating unit is used to regulate the coolant circulating in the coolant flow channel in the current working mode.

[0010] In a second aspect, the present application further provides an immersion energy storage method, which is applied to an immersion energy storage system, wherein the system includes a temperature detection unit, a control unit, and an adjustment unit installed in a battery pack, wherein the control unit is respectively communicated with the temperature detection unit and the adjustment unit, wherein the battery pack includes a box, a plurality of battery modules, and an isolation component disposed in the box, wherein the box and the isolation component are fixedly connected, the battery modules are arranged at intervals in the box, and a cooling liquid for immersing the battery modules is disposed in the box; wherein,

[0011] A liquid inlet and a liquid outlet are provided on the same side wall of the box body, the box body is separated into a first box body cavity and a second box body cavity by the isolation component, the liquid inlet is located in the first box body cavity, the liquid outlet is located in the second box body cavity, a flow channel hole is provided between the first box body cavity and the second box body cavity, a coolant flow channel is formed between the first box body cavity and the second box body cavity through the flow channel hole, and the coolant circulates along the coolant flow channel from the liquid inlet to the liquid outlet; the method comprises:

[0012] Detecting the battery cell temperature of each of the battery modules by the temperature detection unit;

[0013] When determining, by the control unit, that there is a target cell temperature greater than a preset cell temperature threshold among the cell temperatures, matching the current working mode indicated by each of the cell temperatures for the regulating unit, and controlling the regulating unit to be in the current working mode;

[0014] The coolant circulating in the coolant flow channel is regulated by the regulating unit in the current working mode.

[0015] In a third aspect, the present application also provides a computer device for use in an immersion energy storage system, the system comprising a temperature detection unit, a control unit and an adjustment unit installed in a battery pack, the control unit being communicatively connected to the temperature detection unit and the adjustment unit respectively, wherein the battery pack comprises a box body, a plurality of battery modules and an isolation assembly disposed in the box body, the box body and the isolation assembly being fixedly connected, the battery modules being arranged at intervals in the box body, and a cooling liquid for immersing the battery modules in the box body; wherein a liquid inlet is disposed on the same side wall of the box body and a liquid outlet, the box body is separated into a first box body cavity and a second box body cavity by the isolation component, the liquid inlet is located in the first box body cavity, the liquid outlet is located in the second box body cavity, a flow channel hole is provided between the first box body cavity and the second box body cavity, a coolant flow channel is formed between the first box body cavity and the second box body cavity through the flow channel hole, and the coolant circulates along the coolant flow channel from the liquid inlet to the liquid outlet; the computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

[0016] The temperature of each battery cell of the battery module is detected by the temperature detection unit; when it is determined that there is a target battery cell temperature greater than a preset battery cell temperature threshold among the battery cell temperatures, the control unit matches the current working mode indicated by each battery cell temperature for the adjustment unit, and controls the adjustment unit to be in the current working mode; the coolant circulating in the coolant flow channel is adjusted by the adjustment unit in the current working mode.

[0017] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which is applied to an immersion energy storage system, the system comprising a temperature detection unit, a control unit and an adjustment unit installed in a battery pack, the control unit being communicatively connected to the temperature detection unit and the adjustment unit respectively, wherein the battery pack comprises a box, a plurality of battery modules and an isolation assembly arranged in the box, the box and the isolation assembly being fixedly connected, the battery modules being arranged at intervals in the box, and a cooling liquid for immersing the battery modules being arranged in the box; wherein a liquid inlet and a liquid outlet are arranged on the same side wall of the box, the box is separated into a first box cavity and a second box cavity by the isolation assembly, the liquid inlet is located in the first box cavity, the liquid outlet is located in the second box cavity, a flow channel hole is provided between the first box cavity and the second box cavity, a cooling liquid flow channel is formed between the first box cavity and the second box cavity through the flow channel hole, and the cooling liquid circulates along the cooling liquid flow channel from the liquid inlet to the liquid outlet; when the computer program is executed by the processor, the following steps are implemented:

[0018] The temperature of each battery cell of the battery module is detected by the temperature detection unit; when it is determined that there is a target battery cell temperature greater than a preset battery cell temperature threshold among the battery cell temperatures, the control unit matches the current working mode indicated by each battery cell temperature for the adjustment unit, and controls the adjustment unit to be in the current working mode; the coolant circulating in the coolant flow channel is adjusted by the adjustment unit in the current working mode.

[0019] In a fifth aspect, the present application further provides a computer program product, including a computer program, which is applied to an immersion energy storage system, wherein the system includes a temperature detection unit, a control unit and an adjustment unit installed in a battery pack, wherein the control unit is respectively communicated with the temperature detection unit and the adjustment unit, wherein the battery pack includes a box, a plurality of battery modules and an isolation component arranged in the box, wherein the box and the isolation component are fixedly connected, each of the battery modules is arranged at intervals in the box, and a cooling liquid for immersing each of the battery modules is arranged in the box; wherein a liquid inlet and a liquid outlet are arranged on the same side wall of the box, the box is separated into a first box cavity and a second box cavity by the isolation component, the liquid inlet is located in the first box cavity, the liquid outlet is located in the second box cavity, a flow channel hole is provided between the first box cavity and the second box cavity, a cooling liquid flow channel is formed between the first box cavity and the second box cavity through the flow channel hole, and the cooling liquid circulates along the cooling liquid flow channel from the liquid inlet to the liquid outlet; when the computer program is executed by a processor, the following steps are implemented:

[0020] The temperature of each battery cell of the battery module is detected by the temperature detection unit; when it is determined that there is a target battery cell temperature greater than a preset battery cell temperature threshold among the battery cell temperatures, the control unit matches the current working mode indicated by each battery cell temperature for the adjustment unit, and controls the adjustment unit to be in the current working mode; the coolant circulating in the coolant flow channel is adjusted by the adjustment unit in the current working mode.

[0021] The above-mentioned immersion energy storage system and cooling regulation method are configured with a temperature detection unit, a control unit and a regulation unit installed in the battery pack in the immersion energy storage system, wherein the temperature detection unit is used to obtain the cell temperatures of multiple battery modules in the box, and the control unit is used to match the current working mode indicated by each cell temperature for the regulation unit when it is determined that there is a target cell temperature greater than a preset cell temperature threshold among the cell temperatures, and control the regulation unit to be in the current working mode, and the regulation unit is used to regulate the coolant circulating in the coolant flow channel in the current working mode. Since the control unit can control the regulation unit to work in a corresponding working mode according to the real-time cell temperature of the battery module in the battery pack box, and the battery pack box is isolated into a first box cavity and a second box cavity by an isolation component, and there is a flow channel hole between the first box cavity and the second box cavity, it is possible to design the space of the battery pack box so that the liquid inlet and the liquid outlet located on the same side wall of the battery pack box are A directional coolant flow channel is formed between the inlets in the case, so that the coolant injected into the inlet can flow naturally in the battery pack case according to the coolant flow channel. At the same time, the coolant in the battery pack can circulate from the inlet of the battery pack to the outlet under the regulation of the regulating unit with a flow capacity stronger than the natural flow, thereby achieving the purpose of alleviating the coolant temperature difference between different areas in the battery pack by enhancing the turbulent intensity of the coolant. Furthermore, since the battery modules are arranged at intervals in the case, it is ensured that the surface of the battery cells in the battery pack can be fully infiltrated. Therefore, the coolant can be fully heat exchanged through the designated coolant flow channel under the regulation of the regulating unit, thereby overcoming the technical defect that due to the large coolant immersion area in the battery pack case, the coolant temperature difference in different coolant immersion intervals is large when the coolant flows slowly in the case, which makes it easy to have a flow dead zone in the coolant reflux or blockage area. Therefore, the regulation effect of the battery pack cooling regulation is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of component modules of an immersion energy storage system in one embodiment;

[0024] Figure 2 A schematic diagram of the structure of a battery pack of an immersion energy storage system in one embodiment;

[0025] Figure 3A schematic diagram of the flow direction of a coolant flow channel of an immersion energy storage system in one embodiment;

[0026] Figure 4 A schematic diagram of the structure of an isolation component of an immersion energy storage system in one embodiment;

[0027] Figure 5 It is a schematic diagram of the structure of a first isolation component supporting a battery module of an immersion energy storage system in one embodiment;

[0028] Figure 6 A schematic diagram of the structure of a regulating unit of an immersion energy storage system in one embodiment;

[0029] Figure 7 A schematic diagram of a cooling adjustment method in one embodiment;

[0030] Figure 8 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] It is understood that the terms "first", "second", etc. used in the present invention may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor without departing from the scope of the present invention. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0034] It can be understood that the “connection” in the following embodiments should be understood as “connected”, “communication connection”, etc., if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0035] It can be understood that “at least one” means one or more, “plurality” means two or more, and “at least a portion of an element” means a part or all of an element.

[0036] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0037] In an exemplary embodiment, Figure 1 As shown, an immersion energy storage system is provided, which includes a temperature detection unit 11, a control unit 12 and an adjustment unit 14 installed in a battery pack 13, wherein the control unit 12 is respectively communicated with the temperature detection unit 11 and the adjustment unit 14, wherein the battery pack 13 includes a box 131, a plurality of battery modules 132 and an isolation component 133 disposed in the box 131, the box 131 and the isolation component 133 are fixedly connected, the battery modules 132 are arranged at intervals in the box, and a cooling liquid 134 for immersing the battery modules 132 is disposed in the box 131; wherein A liquid inlet 21 and a liquid outlet 22 are provided on the same side wall of the box body 131. The box body 131 is separated into a first box body cavity 1331 and a second box body cavity 1332 by an isolation component 133. The liquid inlet 21 is located in the first box body cavity 1331, and the liquid outlet 22 is located in the second box body cavity 1332. A flow channel hole 31 is provided between the first box body cavity 1331 and the second box body cavity 1332. A coolant flow channel is formed between the first box body cavity 1331 and the second box body cavity 1332 through the flow channel hole, and the coolant 134 circulates along the coolant flow channel from the liquid inlet 21 to the liquid outlet 22.

[0038] It is understandable that energy storage systems are usually based on battery modules (battery clusters). Each battery module contains multiple battery packs, and multiple battery cells are connected in series in the battery pack. During the charging and discharging process of the battery cells, a large amount of heat will be generated in the battery pack. Since the natural heat dissipation capacity of the battery cells cannot maintain the temperature within the working range, the battery pack needs to be cooled in order to prevent thermal runaway, maintain battery performance and extend battery life. That is, the cooling is adjusted by an external cooling system. At present, the commonly used cooling adjustment methods are air cooling and liquid cooling. Among them, the liquid cooling adjustment method can have a more significant heat exchange capacity due to its full contact with the battery. Therefore, the current liquid cooling adjustment method is the mainstream method for cooling battery cells in energy storage systems.

[0039] In conventional technology, a liquid cooling plate or a liquid cooling group pipeline is usually arranged on the battery pack box, and then the coolant flows under the constraint of the liquid cooling plate or the liquid cooling pipeline, and exchanges paths after contacting the battery cells in the battery pack, or the battery pack box is filled with an insulating immersion cooling medium, wherein the insulating immersion cooling medium in the box can completely immerse the battery cells in the battery pack, so that the cooling medium can directly contact the battery cells for heat exchange. However, due to the large internal space area of ​​the box and the limitation of the coolant flow capacity, the above cooling adjustment methods will cause the battery pack to have uneven heat exchange problems in different areas, and the area in the battery pack where there is a lack of coolant flow will also cause the phenomenon of flow dead zone. Especially for battery packs with the inlet and outlet arranged on the same side wall of the box body, the area between the inlet and the outlet may form a flow dead zone during the temperature exchange process, resulting in uneven temperature control of the overall battery module in the battery pack. That is, the coolant enters the battery pack and flows. If the flow heat dissipation capacity is not considered inside the battery pack and the coolant flow channel is not arranged in a targeted manner, it will cause flow dead zones in the battery pack, poor heat exchange efficiency and large temperature differences of cooling media in different areas. It can be seen that the current internal cooling adjustment of the battery through the immersion liquid cooling system cannot control the temperature difference uniformity of the battery pack as a whole, that is, the current adjustment effect of the battery pack coolant is poor.

[0040] Among them, the temperature detection unit 11 refers to a temperature detection device for detecting the temperature of the battery cells of each battery module, which can be specifically a temperature sensor or an infrared thermometer, etc., wherein the number of the temperature detection units 11 can be one or more. When the number of the temperature detection units 11 and the number of the battery modules 132 are not equal, the temperature detected by the temperature detection unit 11 can represent the battery cell temperature of any battery module 132 in the corresponding area. For example, in an implementable manner, it is assumed that there are 6 groups of battery modules, namely battery modules A, B, C, D, E and F, and there are 3 temperature sensors, namely temperature sensors x, y and z. Then, the temperature sensor x can be used to detect the battery cell temperature of battery module A and battery module B, the temperature sensor y can be used to detect the battery cell temperature of battery module C and battery module D, and the temperature sensor z can be used to detect the battery cell temperature of battery module E and battery module F. The installation position of the temperature sensor can be determined by the placement position of one or more battery modules detected by it in the battery pack 13. It can be understood that this embodiment does not specifically limit the installation position of the temperature detection unit 11. The temperature detection unit 11 can be installed on the surface of the battery module 132 in the battery pack 13, and can also be installed on the outer surface of the battery pack 13.

[0041] The control unit 12 refers to the control center of the immersed energy storage system, which is used to trigger the cooling adjustment of the immersed energy storage system. It can be a control terminal or a controller, etc. Further, the control unit 12 can be used to determine the size relationship between each battery cell temperature and a preset battery cell temperature threshold, and when each battery cell temperature has a target battery cell temperature greater than the preset battery cell temperature threshold, the current working mode indicated by each battery cell temperature is matched for the adjustment unit 14, and the adjustment unit 14 is controlled to be in the current working mode, wherein the preset battery cell temperature threshold is set by the user according to the needs, and the target battery cell temperature refers to a battery cell temperature greater than the preset battery cell temperature threshold. Since the control unit 12 is connected to the temperature detection unit 11 in communication, the control unit 12 can receive the temperature detection signal. The cell temperature of each battery module 132 transmitted by the temperature detection unit 11. It can be understood that the control unit 12 can periodically receive the cell temperature of each battery module 132 detected by the temperature detection unit 11, and can also actively request to obtain the cell temperature of each battery module 132 detected by the temperature detection unit 11. The cell temperatures of different battery modules 132 can jointly feedback the real-time heat situation in the battery pack 13. When a target cell temperature greater than a preset cell temperature threshold appears in the battery pack 13, it indicates that each battery module 132 of the battery pack 13 is overheated during the charging and discharging process, and then it is necessary to activate the cooling adjustment mechanism of this embodiment to adjust the cell temperature of each battery module 132 in the battery pack 13, wherein the target cell temperature can be specifically one or more.

[0042] The regulating unit 14 refers to a device for regulating the flow capacity of the coolant 134, which can be specifically a guide impeller, a circulating pump and an ejector. It can be understood that the regulating unit 14 directly acts on the coolant 134 that immerses each battery module 132. When the regulating unit 14 is in a working state, the speed and direction of the circulating flow of the coolant 134 are changed, thereby improving the heat exchange capacity of the coolant 134, and ultimately being able to regulate the battery cell temperature of each battery module 132 to be below a preset battery cell temperature threshold. The regulating unit 14 is communicatively connected to the control unit 12, and the control unit 12 can control the current working mode of the regulating unit 14, wherein the working parameters of the regulating unit 14 under different working modes are The number is different. For example, in one feasible method, it is assumed that the regulating unit 14 is a guide vane, and the working modes include three working modes: first gear, second gear and third gear. The speeds of the guide vanes corresponding to different working modes are different. Then, when it is determined that the regulating unit needs to work, the temperatures of each battery cell jointly indicate which working mode the guide vane is in. For example, the control unit 12 can count the average values ​​of the temperatures of each battery cell, and then use the average values ​​of the temperatures of each battery cell as the real-time working temperature of the battery pack 13, and determine the temperature range in which the real-time working temperature is located. Finally, the current working mode of the regulating unit 14 is queried through the mapping relationship between the temperature range in which the real-time working temperature of the battery pack 13 is located and the working mode.

[0043] It can be understood that during the charging and discharging process of each battery module 132, if the control unit 12 detects that the battery cell temperature of each battery module 132 is less than or equal to the preset battery cell temperature, the real-time operating temperature in the battery pack 13 is controllable, and the heat exchange effect will not be affected by the flow dead zone phenomenon, and the adjustment unit 12 can be in the off mode. If the control unit 12 detects that there is at least one battery cell temperature greater than the preset battery cell temperature threshold among the battery cell temperatures of each battery module 132, the battery pack 13 is overheated, and the control unit 12 controls the adjustment unit 14 to be in the working mode to improve the heat exchange capacity of the coolant 134 by reducing the flow dead zone phenomenon in the box body 131. Among them, this embodiment does not limit the installation position of the adjustment unit 14 in the battery pack 13, that is, the adjustment unit can be installed in the internal box body 131 of the battery pack 13, and can also be installed on the external side wall of the battery pack 13.

[0044] The battery pack 13 is a structure in which each battery module 132 is placed. The battery pack 13 is isolated from the external space by the box 131. The battery pack 13 can be an integrated sealed structure. Figure 2 , Figure 2 1 is a schematic diagram of the structure of a battery pack, which can also be a detachable sealing structure composed of a box cover and a box seat, wherein a liquid inlet 21 and a liquid outlet 22 are provided on the first side wall of the battery pack 13, and the box 41 and the box seat 42 are fixedly connected. For example, in an operative embodiment, the box cover and the box seat are mechanically fixedly connected by bolts, and the internal space of the box 131 can be used to place an isolation component 133 and each battery module 132. The isolation component 133 is used to isolate the box 131 into a first box cavity 1331 and a second box cavity 1332. The liquid inlet 21 and the liquid outlet 22 on the same side wall of the box are connected by the isolation component 13 3 are isolated in different box cavities. It can be understood that the cavity volumes of the first box cavity 1331 and the second box cavity 1332 can be the same or different, depending on the setting position of the isolation component 133. The isolation component 133 is fixedly connected to the side wall of the box body 131. The liquid inlet 21 and the liquid outlet 22 can be set on any side wall of the box body at the same time. The relative position relationship between the liquid inlet 21 and the liquid outlet 22 is not specifically limited. For example, the liquid inlet 21 can be located above the liquid outlet 22, or below the liquid outlet 22, and the liquid inlet 21 and the liquid outlet 22 can be located on the same axis or not.

[0045] In the existing energy storage system, the box body is not separated into different box body cavities by the isolation component 133, that is, the box body space is an integrated space, and an inlet and outlet flow channel is formed between the liquid inlet 21 and the liquid outlet 22 located on the same side wall of the box body. Since the liquid inlet direction of the liquid inlet 21 is completely opposite to the direction of the liquid outlet 22, a blockage or a flow dead zone will occur at the inlet and outlet flow channel. At the same time, a flow channel hole 31 is provided between the first box body cavity 1331 and the second box body cavity 1332, and the coolant 134 injected from the liquid inlet 21 can flow out from the liquid outlet 22 after fully circulating in the first box body cavity 1331 and the second box body cavity 1332, wherein the flow channel hole 31 can be provided on the isolation component 133, and the isolation component 133 can be either an integrated sealing structure with the flow channel hole 31 or a spliced ​​sealing structure with the flow channel hole 31. The number and arrangement of the flow holes 31 are not specifically limited. For example, in one practicable embodiment, the isolation component 133 is an isolation plate having a circular through hole of a preset aperture size at the center position, wherein the area of ​​the isolation plate is the same as the area of ​​the side wall of the battery pack case, and the circular through hole of the preset aperture size is the flow hole 31, and then the coolant 134 forms a coolant flow channel in the battery pack 13 through the first case cavity 1331, the second case cavity 1332 and the flow hole 31, that is, the coolant 34 is fully circulated in the first case cavity 1331 and is collected in the flow hole 31, and is fully circulated in the second case cavity 1332 and is collected in the second case cavity 1332. Therefore, a designated coolant flow channel is formed in the battery pack by the setting of the isolation component, so that when the adjustment unit is working in the current working mode, the coolant can flow in the battery pack based on the designated coolant flow channel.

[0046] As an example, the coolant is injected into the first box cavity of the battery pack through a liquid inlet arranged on the side wall of the box, and then flows based on the coolant flow channel formed between the first box cavity and the second box cavity through the flow channel hole arranged on the isolation component, that is, first, the flow channel from the liquid inlet through the first box cavity is collected at the flow channel hole, and then the flow channel from the flow channel hole through the second box cavity is collected at the liquid outlet on the same side wall of the box as the liquid inlet. In this process, the temperature sensor is used to detect the cell temperatures of different battery modules arranged at intervals in the box in real time, and the cell temperatures of each battery module are sent to the control terminal, and the control terminal determines the size relationship between each cell temperature and a preset cell temperature threshold, and then the control terminal determines the temperature of each cell. When there is a target cell temperature greater than a preset cell temperature threshold in the temperature range, that is, when it is determined through the control terminal that the battery pack needs to be cooled and adjusted, the average temperature of each cell is calculated, and the average value is used as the real-time operating temperature of the battery pack, and the control terminal uses the temperature range in which the real-time operating temperature is located as an index to query the current working mode of the adjustment unit, and the control terminal controls the adjustment unit to adjust from the initial working mode to the current working mode, and finally, when the adjustment unit works in the current working mode, the coolant flow channel is adjusted to circulate the coolant, wherein the adjustment unit and each battery module are located in the same box cavity of the box, that is, the adjustment unit and each battery module are located in the first box cavity or the second box cavity.In this way, when any battery module in the battery pack overheats, the control unit can match the current working mode of the regulating unit, and the control unit can control the regulating unit to work in the current working mode. At the same time, when the regulating unit works in the current working mode, the coolant in the battery pack where the battery modules are immersed can circulate along the coolant flow channel formed by the flow channel holes between the first box cavity and the second box cavity under the action of the regulating unit. Since the liquid inlet and the liquid outlet located on the same side wall of the box are respectively located in different box cavities of the battery pack box, the coolant can fully circulate along the coolant flow channel with flow directionality in the box space of the battery pack through the design of the internal space structure of the battery pack box. At the same time, the coolant in the battery pack can be Under the regulation of the regulating unit, the coolant circulates from the liquid inlet to the liquid outlet of the battery pack with a flow capacity stronger than the natural flow, thereby achieving the purpose of alleviating the coolant temperature difference between different areas in the battery pack by enhancing the turbulent intensity of the coolant. Furthermore, since the battery modules are arranged at intervals in the box, it is ensured that the surface of the battery cells in the battery pack can be fully wetted. Therefore, the coolant can be fully heat exchanged through the designated coolant flow channel under the regulation of the regulating unit, thereby overcoming the technical defect that due to the large coolant immersion area in the battery pack box, the coolant temperature difference in different coolant immersion intervals is large when the coolant flows slowly in the box, which makes it easy to have a flow dead zone in the coolant reflux or blockage area. Therefore, the regulation effect of the battery pack cooling regulation is improved.

[0047] In an exemplary embodiment, the regulating unit is fixed to the first box cavity, each battery module is placed in the second box cavity, and the flow channel hole is set on the isolation component; wherein,

[0048] The liquid inlet 21 and the liquid outlet 22 are located on the first side wall of the box body, the first distance between the flow channel hole and the first side wall of the box body 131 is smaller than the second distance between the flow channel hole and the second side wall, the first side wall and the second side wall are opposite to each other, the cooling liquid 134 circulates in the first main flow channel arranged in the first direction in the first box body, the cooling liquid 134 circulates in the second main flow channel arranged in the second direction between the first box body cavity and the second box body cavity, and the cooling liquid 134 circulates in the third main flow channel arranged in the third direction in the second box body cavity, the first direction, the second direction and the third direction are different, the first main flow channel, the second main flow channel and the third main flow channel together constitute the cooling liquid flow channel, refer to Figure 3 , Figure 3 Schematic diagram showing the flow direction of the coolant flow channel, wherein 51 is the first direction, 52 is the second direction, and 53 is the third direction.

[0049] In the case where the adjustment unit 14 and each battery module 132 are both arranged in the internal space of the battery pack 13, the adjustment unit 14 can more directly change the flow capacity of the coolant, and then for the consideration of the internal space utilization of the battery pack 13, the adjustment unit 14 and each battery module 132 can be arranged in different box cavities of the battery pack 13, wherein the adjustment unit 14 is fixed to the first box cavity 1331, and each battery module 132 is placed in the second box cavity 1332 at intervals from each other. The fixed connection method of the adjustment unit 14 and the first box cavity 1331 can specifically be a connection method such as welding or bolt connection, and the placement of each battery module 132 in the second box cavity 1332 is not limited to the embodiment. Specifically defined, for example, each battery module 132 can be placed in rows, columns, or rows and columns in the second box cavity, and the flow channel holes are arranged on the isolation component. For example, in one feasible method, the first box cavity 1331 and the second box cavity 1332 isolated by the isolation component 133 are distributed left and right based on the horizontal plane, wherein the left side is the first box cavity 1331, and the right side is the second box cavity 1332, and the isolation component 133 is an isolation plate spanning the first box cavity 1331 and the second box cavity, wherein the isolation component 133 is parallel to the first side wall of the box 131, and the first side wall and the second side wall are opposite to each other, that is, the isolation plate is parallel to the first side wall and parallel to the second side wall.

[0050] It can be understood that the flow path length of the coolant 134 in different box cavities depends on the distance between the flow path hole set on the isolation component 133 and the box side wall. In order to ensure that the coolant can fully circulate in different box cavities, the flow path hole 31 set on the isolation component 133 needs to consider the relative position relationship between the flow path hole 31 and the liquid inlet 21 and the liquid outlet 22, that is, the first distance between the flow path hole 31 and the second side wall is set to be smaller than the second distance between the flow path hole 31 and the first side wall. For example, in one feasible method In the formula, it is assumed that the isolation component 133 is an isolation plate, and a flow channel hole 31 is arranged on the isolation plate, and the isolation plate is parallel to the first side wall of the box body and parallel to the second side wall, wherein a first perpendicular distance between the isolation plate and the first side wall is greater than a second perpendicular distance between the isolation plate and the second side wall, that is, a flow channel hole 31 on the isolation plate is arranged at the far end of the liquid inlet 21 and the liquid outlet 22, and thus there is a sufficiently long flow channel length in the first box body cavity 1331 and the second box body cavity 1332 for sufficient circulation of the coolant 134.

[0051] The coolant flow channel inside the battery pack 13 is composed of a first main channel, a second main channel and a third main channel, wherein the first main channel is a flow channel for the coolant 134 arranged along a first direction in the first box cavity 1331, the second main channel is a flow channel for the coolant 134 arranged along a second direction between the first box cavity 1331 and the second box cavity 1332, and the third main channel is a flow channel for the coolant 134 arranged along a third direction between the second box cavity 1332. It can be understood that the flow channel length of the second main channel depends on the thickness of the isolation plate, and the flow channel lengths of the first main channel and the third main channel both depend on the second distance. The first direction, the second direction and the third direction are all different, wherein the first direction and the third direction are opposite, the second direction is different from the first direction and different from the third direction. For example, in an operative method, the first direction is perpendicular to the bottom wall of the battery pack and downward, the second direction is parallel to the horizontal plane where the bottom wall of the battery pack is located, and the third direction is perpendicular to the bottom wall of the battery pack and upward.

[0052] As an example, the coolant is injected into the first box cavity of the battery pack through a liquid inlet arranged on the side wall of the box, wherein the first box cavity is fixedly installed with a regulating unit, and then flows based on the coolant flow channel formed between the first box cavity and the second box cavity through a flow channel hole arranged on the isolation component, wherein the flow channel hole is arranged at the far end of the liquid inlet and the liquid outlet, and then the flow through the flow channel of the second box cavity through the flow channel hole is gathered at the liquid outlet on the same side wall of the box as the liquid inlet, wherein each battery module is immersed in the second box cavity and arranged at intervals, and in this process, the battery cell temperature of different battery modules in the second box cavity is detected in real time by a temperature sensor, and the battery cell temperature of each battery module is sent to the control terminal, and then The control terminal determines the relationship between the temperature of each battery cell and the preset battery cell temperature threshold, and then determines that there is a target battery cell temperature greater than the preset battery cell temperature threshold among the battery cell temperatures, that is, when the control terminal determines that the battery pack needs to be cooled and adjusted, the average value of the temperature of each battery cell is calculated, and the average value is used as the real-time operating temperature of the battery pack, and the control terminal uses the temperature range of the real-time operating temperature as an index to query the current working mode of the adjustment unit, and the control terminal controls the adjustment unit to adjust from the initial working mode to the current working mode, and finally adjusts the coolant flow channel to circulate the coolant when the adjustment unit works in the current working mode.

[0053] In this embodiment, the adjustment unit and each battery module are spatially isolated in different box cavities of the battery pack, thereby avoiding the technical defects of poor heat exchange uniformity between different areas where each battery module is placed when the adjustment unit is in the current working mode, and the adjustment unit occupying the placement and arrangement space of each battery module. At the same time, the flow channel hole set on the isolation component is set on the side away from the side wall where the liquid inlet and the liquid outlet are located, so that the coolant has sufficient flow channel length in different box cavities of the battery pack for the circulation of the coolant. Therefore, the coolant injected from the liquid inlet can increase the time for heat exchange between the coolant and each battery module in the process of circulating through the three main channels designed in different directions inside the battery pack. Moreover, each battery module is located in the same box cavity, which can ensure the uniformity of heat dissipation of different battery modules by the coolant. Therefore, in addition to avoiding the situation of flow dead zones in the coolant reflux or blockage area, the regulation effect of battery pack cooling regulation is further improved from the dimension of heat exchange capacity.

[0054] In an exemplary embodiment, any battery module 132 includes a plurality of battery cells, and the battery cells are arranged at intervals; wherein,

[0055] The third main channel includes a first branch channel formed by the gaps between the battery modules 132, a second branch channel formed by the gaps between the battery cells, and a third branch channel formed on the top of each battery cell, wherein the flow directions of the first branch channel and the second branch channel are perpendicular to each other, and the flow directions of the first branch channel and the third branch channel are parallel to each other.

[0056] It should be noted that the battery module is composed of multiple battery cells. The staggered arrangement of different battery modules in the second box cavity can allow the coolant flowing in the battery pack to infiltrate the outer surfaces of the battery cells to a certain extent. However, adjacent battery cells of the same battery module may not be infiltrated by the circulating coolant due to the lack of gaps. To ensure that the battery cells in the battery module can be fully infiltrated, a specific bypass channel design can be performed in the second box cavity where each battery module is placed. That is, the battery cells in the battery module are firstly arranged at intervals. Since the battery modules in the second box cavity are also arranged at intervals, gaps are ensured between the battery cells in the battery pack and between the battery cells and the inner wall of the battery pack box. The coolant flowing into the second box cavity from the channel hole forms different bypass channels through different gaps, and flows through different battery cells in the second box cavity through the bypass channels and then converges at the liquid outlet, thereby completing the heat exchange of different battery cells in the second box cavity.

[0057] The third main flow channel is composed of a first branch flow channel, a second branch flow channel and a third branch flow channel, wherein the number of flow channels of the first branch flow channel is determined by the number of modules of the battery module. For example, when the number of modules of the battery module is two groups, a first branch flow channel is formed between the battery modules. There are multiple types of second branch flow channels. The flow direction of the second branch flow channel is not specifically limited in this embodiment. For example, the flow direction of the second branch flow channel can be parallel to the preset horizontal direction, perpendicular to the preset horizontal direction, or at a certain angle to the preset horizontal direction.

[0058] As an example, after the coolant flows into the second box cavity from the second main channel between the first box cavity and the second box cavity, the coolant circulates toward the liquid outlet located on the first side wall of the second box cavity through multiple first branch channels in lateral flow directions formed by the gaps between the battery modules, multiple second branch channels in longitudinal flow directions formed by the gaps between the battery cells, and multiple third branch channels in lateral flow directions formed on the tops of the battery cells, wherein the first branch channel and the third branch channel are located in different spaces of the second box cavity, and the flow directions of the first branch channel and the third branch channel are parallel and the same to each other.

[0059] In this embodiment, when the regulating unit regulates the circulation of the coolant in the coolant flow channel in the current working mode, when the coolant circulates to the second box cavity through the first box cavity and the flow channel hole, the coolant disperses and flows in the first branch channel, the second branch channel and the third branch channel to form the third main flow, thereby ensuring that the coolant flowing through different branch channels can fully infiltrate each battery module placed in the second box cavity, so as to realize the directional third main flow channel designed in the second box cavity, enhance the heat exchange capacity of the coolant in the second box cavity, and further improve the regulation effect of the battery pack cooling regulation by increasing the direct contact area between the coolant and each battery cell of the battery module.

[0060] In an exemplary embodiment, the isolation assembly 133 includes a first isolation component 61 and a second isolation component 62, the box body 131 and the first isolation component 61 are fixedly connected, the second isolation component 62 is detachably connected to the box body 131 and the first isolation component 61, respectively, and the flow channel hole is inlaid by the second side wall and the first isolation component; wherein,

[0061] The first isolation component 61 is used to isolate each battery module 132 from the adjustment unit 14, and the second isolation component is used to isolate the box body 131 from the external space.

[0062] It should be noted that when there is a cell failure, damage or performance degradation in each battery module in the battery pack, the cell with abnormal working performance needs to be replaced. Therefore, in order to facilitate the loading and unloading of the cell, a contact space between the inside and outside of the box can be reserved when designing the battery pack box seat. At the same time, in order to adapt to the different design requirements of the liquid inlet and outlet arranged in the battery pack box, it is necessary to provide different types of isolation components in the isolation assembly to ensure that the coolant still flows in a directional coolant flow channel inside the battery pack. For example, in a In an operative manner, the isolation assembly is composed of a first isolation component and a second isolation component, wherein the first isolation component is used to isolate the internal space of the battery pack case into a non-enclosed first case cavity and a second case cavity, wherein the first case cavity is fixed with an adjustment unit, and the second case cavity is provided with each battery module. It can be understood that in order to allow the coolant in the first case cavity and the second case cavity to flow naturally, a flow channel hole needs to be provided between the first case cavity and the second case cavity. Considering the complexity of the processing technology, the flow channel hole can be provided by the first isolation component and the second side of the battery pack case. The first isolating component is formed by structural coupling between the walls, that is, a notch is reserved on the first isolating component, and the notch side is placed away from the first side wall, and the first isolating component is fixedly connected to the first side wall and the second side wall of the box body respectively, so that a flow channel hole is formed by inlaying the first isolating component and the second side wall away from the liquid inlet and the liquid outlet, ensuring that the coolant between the first box body cavity and the second box body cavity can flow normally. In addition, the second isolating component is used to isolate the internal space and the external space of the box body. The second isolating component can be specifically an upper baffle, and the second isolating component and the box body are detachably connected, that is, when the battery cells of each battery module can work normally, the isolation assembly composed of the first isolating component and the second isolating component can ensure that the coolant can still flow from the liquid inlet to the liquid outlet according to the directional coolant flow channel, and when the battery cells of each battery module need to be replaced, the battery cells of each battery module can be directly exposed to the external space by removing the second isolating component, so as to facilitate the direct replacement of the battery cells, wherein the detachable connection method between the second isolating component and the box body can be specifically a detachable connection method fixedly connected by bolts, refer to Figure 4 , Figure 4 Schematic diagram showing the composition structure of the isolation assembly, wherein 61 is a first isolation component, which may be a support structure, and 62 is a second isolation component, which may be a front baffle.

[0063] As an example, the liquid inlet and the liquid outlet are arranged on the top wall of the battery pack. When designing the internal structure of the battery pack box, an isolation plate with a rectangular notch reserved in the short axis direction can be designed, and the isolation plate can be vertically fixed to the battery pack box, wherein the overall area of ​​the isolation plate is smaller than the side wall area of ​​the battery pack box, and the short axis of the reserved rectangular notch fits the bottom wall of the battery pack, so that when the coolant in the first box cavity flows to the second box cavity, it can be realized through the rectangular flow channel hole formed by the bottom wall of the battery pack and the first isolation component. In addition, the top surface of the battery pack is composed of the second isolation component "upper baffle", which is detachably fixed to the box seat of the battery pack, thereby facilitating the disassembly of the second isolation component to replace the battery cell placed in the second box cavity.

[0064] In this embodiment, the internal structure of the battery pack is designed by arranging isolation components with different functions. While isolating the internal space of the battery pack from the external space, it is ensured that the internal structure of the battery pack still has embedded flow channel holes and cooling liquid flow channels for directionally flowing cooling liquid in the internal space of the battery pack. In the normal charging and discharging process of the battery cells of each battery module, the flow channel holes embedded in the first isolation component and the inner wall of the battery pack case enable the cooling liquid to fully exchange heat through the designated cooling liquid flow channel under the regulation of the regulating unit, thereby improving the regulating effect of the battery pack cooling regulation. When the battery cells of each battery module cannot be charged and discharged normally, the purpose of flexibly replacing the battery cells can be achieved by removing and installing the second isolation component.

[0065] In an exemplary embodiment, the first isolation component includes a first support plate and a second support plate arranged at intervals, the first support plate is fixedly connected to the third side wall of the box body, the third side wall is adjacent to the first side wall and the second side wall, one end of the second support plate is fixedly connected to the isolation component and the first side wall respectively, the other end of the second support plate extends to the second side wall along a preset direction and is fixedly connected, each battery module includes a first battery module and a second battery module; wherein the first battery module is jointly supported by the first support plate and the second support plate, the second battery module is supported by the second support plate, the flow channel hole includes a first main flow channel hole and a second main flow channel hole, the first main flow channel hole is jointly inlaid by the first support plate, the bottom wall of the first battery module, the second support plate and the second side wall, and the second main flow channel hole is jointly inlaid by the second support plate, the bottom wall of the second battery module and the second side wall.

[0066] It should be noted that in order to meet the design requirements of designing the liquid inlet and the liquid outlet on different side walls of the battery pack, the isolation component needs to provide other functions in addition to the isolation function. For example, when the liquid inlet and the liquid outlet arranged on the same side wall of the battery pack need to be isolated in the longitudinal direction, the internal space of the battery pack box needs to be isolated into a first box cavity in the lower half and a second box cavity in the upper half. At this time, in addition to the isolation capability of providing the internal space of the battery pack, the isolation component also needs to provide support capability. That is, the first isolation component can be specifically a support plate, and each battery module located in the second box cavity is placed Placed on the support plate, further, in order to allow the coolant to completely infiltrate the surface of the battery cells of each battery module during the flow process, the first isolation component can be designed to be composed of different types of support plates, wherein the different types of support plates are arranged at intervals to ensure that the surface of the battery cell in contact with the support plate can have a certain surface area infiltrated with the coolant, wherein the area of ​​the surface of the battery cell in contact with the support plate infiltrated with the coolant is determined by the interval between the first support plate and the second support plate, the first support plate can specifically be a "right-angle" plate, and the second support plate can specifically be an "I-shaped" plate to provide high support strength, refer to Figure 5 , Figure 5 Schematic diagram showing the structure of the first isolation component supporting the battery module, wherein 611 is the first support plate, 612 is the second support plate, 1321 is the first battery module, and 1322 is the second battery module.

[0067] It can be understood that, considering the deployment cost of the first isolation component, the flow channel hole can be formed by inlaying the surface of the battery cell in contact with the support plate, the side wall of the box body and the support plate based on the placement position relationship between the battery module and the support plate, wherein the placement position relationship between the battery module and the support plate can specifically include a first placement position relationship in which the battery module is placed between the first support plate and the second support plate, and a second placement position relationship in which the battery module is placed between different second support plates, and the battery modules placed in different placement position relationships are divided into a first battery module and a second battery module, that is, the first battery module is supported by the first support plate and the second support plate, and the second battery module is supported by the second support plate, thereby forming a flow channel hole in the first box body cavity and the second box body cavity. A first main flow channel hole and a second main flow channel hole of different types, wherein the first main flow channel hole is formed by inlaying the first support plate, the bottom of the first battery module, the second support plate and the second side wall, and the second main flow channel hole is formed by inlaying the second support plate, the bottom wall of the second battery module and the second side wall, so that the cooling liquid between the first box cavity and the second box cavity can circulate through the first main flow channel hole and the second main flow channel hole, wherein the first support plate is fixedly connected to the third side wall of the box, the third side wall is the side wall connecting the first side wall and the second side wall in the box, and the third side wall is adjacent to the first side wall and the second side wall respectively, one end of the second support plate is fixedly connected to the isolation assembly and the first side wall respectively, and the other end of the second support plate extends to the second side wall along a preset direction and is fixedly connected.

[0068] In this embodiment, when designing the first isolation component, the first support plate and the second support plate are arranged at intervals, and the first support plate and the second support plate complete the isolation of the liquid inlet and the liquid outlet, as well as the support of each battery module, and form a first main flow channel hole formed by the first support plate, the bottom wall of the first battery module, the second support plate and the second side wall inlaid together in the internal space of the battery pack, and form a second main flow channel hole formed by the second support plate, the bottom wall and the second side wall of the second battery module inlaid together, so that a coolant flow channel with directional flow can be formed inside the battery pack box through the first main flow channel hole and the second main flow channel hole. At the same time, the spacing between the first support plate and the second support plate can ensure that the surface of the battery cell in contact with the support plate is infiltrated by the coolant circulating inside the battery pack, that is, the purpose of ensuring that the battery cells of each battery module placed in the second box cavity are infiltrated by the coolant can be achieved, so the adjustment effect of the battery pack cooling adjustment is further improved.

[0069] In an exemplary embodiment, the battery pack further includes a filling component, the filling component is streamlined, the filling component is fixed in the first box cavity, and the first center position of the filling component and the second center position of the flow channel hole are located on the same straight line; wherein,

[0070] The filling component is parallel to the fixed direction of the first box body cavity and the flow direction of the flow channel hole, and a gap is left between the filling component and the isolation component, wherein the filling component is used to guide the coolant flowing from the first box body cavity to the flow channel hole.

[0071] It should be noted that, in order to reduce the amount of coolant filled in the first box cavity, a filling component can be arranged in the first box cavity, wherein the filling component is fixedly arranged in the first box cavity, and the filling component can specifically be a raised filling structure. Furthermore, the filling component is designed to be streamlined and symmetrically arranged with the flow channel hole, thereby reducing the confluence area of ​​the first box cavity at the flow channel hole to accelerate the flow rate of the coolant flowing from the first box cavity to the second box cavity. The first center position of the filling component and the second center position of the flow channel hole are located on the same straight line. Specifically, the center of mass of the filling component and the hole center of the flow channel hole are located on the same axis, wherein the filling component is in the first The fixing direction of a box cavity is parallel to the flow direction of the flow channel hole, and a gap is left between the filling component and the isolation component, that is, it is ensured that the filling component is fixed in the first box cavity directly below the flow channel hole, and the coolant in the first box cavity can flow into the flow channel hole through the gap between the filling component and the isolation component to circulate normally to the second box cavity, wherein the filling component can be used to guide the coolant in the first box cavity to flow to the flow channel hole between the first box cavity and the second box cavity, and the gap height between the filling component and the isolation component is greater than the thickness of the isolation component, so that the coolant flow per unit area directly below the flow channel hole is greater than the coolant flow through the flow channel hole.

[0072] This embodiment fixes a filling component with a guiding function in the first box cavity, thereby reducing the amount of coolant filling in the first box cavity and guiding the coolant in the first box cavity to flow into the flow channel hole at a faster speed when the adjustment unit is working. Therefore, while further improving the adjustment effect of the battery pack cooling adjustment, the adjustment cost of the battery pack cooling adjustment is reduced.

[0073] In an exemplary embodiment, the regulating unit includes a first guide impeller and a second guide impeller, which are symmetrically installed on both sides of a placement axis centerline corresponding to each battery module, and the placement axis centerline is perpendicular to the placement direction of each battery module.

[0074] It should be noted that when the regulating unit works in different working modes, the convection effect of the coolant in the first box cavity and the second box cavity can be improved through the specific setting of the regulating unit position. At the same time, the setting of multiple guide impellers can reduce the working time of the guide impellers, thereby improving the working flexibility of the regulating unit. For example, in an implementable manner, in a first preset time period, the coolant circulating in the coolant flow channel can be adjusted by the first guide impeller alone in the current working mode, and in a second preset time period, the coolant circulating in the coolant flow channel can be adjusted by the second guide impeller alone in the current working mode. In a third preset time period, the coolant circulating in the coolant flow channel can be adjusted by the first guide impeller and the second guide impeller together in the current working mode, wherein the placement axis centerline can specifically be the axis where the placement center is located, and the placement axis centerline is perpendicular to the placement direction of each battery module. For example, in an implementable manner, each battery module is placed in a horizontal array in the second box cavity, and the placement axis centerline is a vertical line of the placement center point of the horizontal array. Figure 6 , Figure 6 Schematic diagram showing the composition structure of the regulating unit, wherein 31 indicated in the figure is a first guide impeller, and 32 is a second guide impeller.

[0075] In this embodiment, an adjustment unit consisting of a first guide impeller and a second guide impeller is symmetrically arranged on both sides of the center line of the placement axis indicated by each battery module. The working state of the first guide impeller and / or the second guide impeller can be adapted to the current working mode of the adjustment unit, thereby reducing the working time or workload of the first guide impeller and / or the second guide impeller. At the same time, the first guide impeller and the second guide impeller arranged at different positions can also improve the convection capacity of the coolant at the corresponding position of the second box cavity. Therefore, this embodiment improves the working life of the adjustment unit while further improving the adjustment effect of the battery pack cooling adjustment.

[0076] In an exemplary embodiment, the battery pack also includes a flow channel hole valve, which is fixedly installed on the first isolation component, and one flow channel hole corresponds to one flow channel hole valve, wherein the flow channel hole valve includes a first flow channel hole valve and a second flow channel hole valve, the first flow channel hole valve is used to open and close the first main flow channel hole, and the flow channel hole valve is used to open and close the second main flow channel hole, and the first opening of the first flow channel hole valve is smaller than the second opening of the second flow channel hole valve.

[0077] It should be noted that when the regulating unit regulates the coolant circulating in the coolant flow channel in the current working mode, a corresponding flow channel hole valve can be set near the flow channel hole, and the control unit controls the flow channel hole valve to present different openings when the regulating unit performs cooling regulation in different working modes. It can be understood that when the temperature of the single cell located in the second box cavity is too high, for any flow channel hole valve, increasing the opening of the flow channel hole valve can increase the amount of coolant circulating through the flow channel hole corresponding to the flow channel hole valve, wherein the opening and closing states of multiple flow channel hole valves are also determined by the working mode of the regulating unit. For example, in one feasible method, assuming that there are 5 flow channel holes and 5 flow channel hole valves, when the control unit controls the regulating unit to be in working mode 1, the five flow channel hole valves can be synchronously controlled to be open. State, when the control unit controls the regulating unit to be in working mode 2, any three of the five channel orifice valves are synchronously controlled to be in an open state, and the other channel orifice valves are in a closed state. When the control unit controls the regulating unit to be in working mode 3, any one of the five channel orifice valves is synchronously controlled to be in an open state, and the other channel orifice valves are in a closed state. It can be understood that the opening priority of the first channel orifice valve is greater than the opening priority of the second channel orifice valve, that is, if the working mode adapted to the regulating unit only requires one type of channel orifice valve to be in an open state, the first channel orifice valve is in an open state; if two types of channel orifice valves are required to be in an open state, both the first channel orifice valve and the second channel orifice valve are in an open state, and the first opening of the first channel orifice valve is greater than the second opening of the second channel orifice valve.

[0078] It should be noted that when the channel hole valve is designed to be installed on the first isolation component, the channel hole valve can be installed on the side of the second box cavity or on the side of the first box cavity. It can be understood that when the channel hole valve is installed on the first box cavity side, the gap between the filling assembly and the first isolation component needs to take into account the space occupied by the channel hole valve to ensure that there is always a gap for the coolant to flow through the channel hole between the first box cavity and the second box cavity during the opening and closing process of the channel hole valve. When the channel hole valve is installed on the second box cavity side, it is necessary to reserve installation space for the channel hole valve when arranging each battery module.

[0079] As an example, the control unit matches the current working mode indicated by the temperatures of each battery cell for the adjustment unit, and synchronously queries the channel orifice valve setting strategy that matches the current working mode, and then when the control adjustment unit is in the current working mode, the control unit synchronously adjusts the opening and closing states of each channel orifice valve according to the channel orifice valve setting strategy, wherein the channel orifice valve setting strategy includes the opening and closing relationship between the first channel orifice valve and the second channel orifice valve and the opening degree of the channel orifice valve in the open state.

[0080] In this embodiment, by fixedly installing the flow channel hole valve on the first isolation component in the battery pack, and then when there are multiple flow channel holes between the first box cavity and the second box cavity, the working number and working state of the flow channel hole valve are adjusted in real time based on the current working mode of the adjustment unit, so as to achieve the purpose of controlling the flow rate of the coolant circulating between the first box cavity and the second box cavity through the flow channel hole, that is, the coolant flow rate of the flow channel hole is adjusted in real time based on the working mode of the adjustment unit, so as to avoid the situation where the battery cell temperature drops suddenly due to excessive coolant flow rate. Therefore, while laying the foundation for improving the adjustment effect of the battery pack cooling adjustment, the stability of the battery pack cooling adjustment is improved.

[0081] In an exemplary embodiment, referring to Figure 7 , a cooling adjustment method is provided. This embodiment uses the method applied to a terminal as an example, wherein the terminal may be, but is not limited to, a personal computer, a laptop computer, a smart phone, a tablet computer, an Internet of Things device, and a portable wearable device. The Internet of Things device may be a smart speaker, a smart TV, a smart air conditioner, a smart car device, a projection device, etc. The portable wearable device may be a smart watch, a smart bracelet, a head-mounted device, etc. The head-mounted device may be a virtual reality (VR) device, an augmented reality (AR) device, smart glasses, etc. It is understandable that the method may also be applied to a server, and may also be applied to a system including a terminal and a server, and may be implemented through the interaction between the terminal and the server. In this embodiment, an immersion energy storage system is deployed on the terminal, and the cooling and regulating system includes a temperature detection unit, a control unit and a regulating unit installed on the battery pack, and the control unit is respectively communicated with the temperature detection unit and the regulating unit, wherein the battery pack includes a box, a plurality of battery modules and an isolation component arranged in the box, the box and the isolation component are fixedly connected, and each battery module is arranged at intervals in the box, and a cooling liquid for immersing each battery module is arranged in the box; wherein a liquid inlet and a liquid outlet are arranged on the same side wall of the box, and the box is separated into a first box cavity and a second box cavity by the isolation component, the liquid inlet is located in the first box cavity, and the liquid outlet is located in the second box cavity, and a flow channel hole is provided between the first box cavity and the second box cavity, and a cooling liquid flow channel is formed between the first box cavity and the second box cavity through the flow channel hole, and the cooling liquid circulates along the cooling liquid flow channel from the liquid inlet to the liquid outlet, and the method includes steps 202-206, wherein:

[0082] Step 202, detecting the cell temperature of each battery module by a temperature detection unit;

[0083] It should be noted that the cooling regulation method provided in this embodiment is used to control the above-mentioned immersion energy storage system to regulate the circulation flow of the cooling liquid.

[0084] Step 204 , when the control unit determines that there is a target cell temperature greater than a preset cell temperature threshold among the cell temperatures, the control unit matches the current working mode indicated by the cell temperatures and controls the control unit to be in the current working mode.

[0085] Step 206: regulating the coolant circulating in the coolant flow channel in the current working mode through the regulating unit.

[0086] As an example, steps 202 to 206 include: detecting the cell temperatures of different battery modules arranged at intervals in the box in real time through a temperature sensor, and sending the cell temperature of each battery module to the control terminal, and then determining the relationship between each cell temperature and a preset cell temperature threshold through the control terminal, and then determining through the control terminal that there is a target cell temperature greater than the preset cell temperature threshold among the cell temperatures, that is, when the control terminal determines that the battery pack needs to be cooled and adjusted, counting the average value of each cell temperature, and using the average value as the real-time operating temperature of the battery pack, and querying the current working mode of the adjustment unit through the control terminal using the temperature range of the real-time operating temperature as an index, and controlling the adjustment unit through the control terminal to adjust from the initial working mode to the current working mode, and finally adjusting the coolant flow channel to circulate the coolant when the adjustment unit is working in the current working mode.

[0087] In the cooling and regulating method provided in the present embodiment, since the control unit can control the regulating unit to work in a corresponding working mode according to the real-time cell temperature of the battery module in the battery pack case, and the battery pack case is isolated into a first case cavity and a second case cavity by an isolation component, and there is a flow channel hole between the first case cavity and the second case cavity, it is possible to form a directional coolant flow channel in the case between the liquid inlet and the liquid outlet located on the same side wall of the battery pack case through the spatial design of the battery pack case, so that the coolant injected into the liquid inlet can flow naturally in the battery pack case according to the coolant flow channel. At the same time, the coolant in the battery pack can be regulated by the regulating unit with a flow capacity stronger than the natural flow. The liquid inlet of the battery pack circulates to the liquid outlet, thereby achieving the purpose of alleviating the temperature difference of the coolant between different areas in the battery pack by enhancing the turbulence intensity of the coolant. Furthermore, since the battery modules are arranged at intervals in the box, it is ensured that the surface of the battery cells in the battery pack can be fully wetted. Therefore, the coolant can be fully exchanged with heat through the designated coolant flow channel under the regulation of the adjustment unit, thereby overcoming the technical defect that due to the large coolant immersion area in the battery pack box, the coolant temperature difference in different coolant immersion intervals is large when the coolant flows slowly in the box, which makes it easy to have a flow dead zone in the coolant reflux or blockage area. Therefore, the adjustment effect of the battery pack cooling adjustment is improved.

[0088] In an exemplary embodiment, the current working mode indicated by the temperatures of the battery cells is matched to the regulating unit, including:

[0089] Obtain the first temperature range in which the target battery cell temperature is currently located; fuse the temperatures of the battery cells to obtain the overall temperature of the battery pack, and determine the second temperature range in which the overall temperature is located; predict the current operating temperature of the battery pack based on the first temperature range and the second temperature range, wherein the first temperature range and the second temperature range belong to different temperature range division standards; query the current operating mode of the adjustment unit based on the current operating temperature.

[0090] It should be noted that the target cell temperature feedback is the highest temperature of the single cell in each battery module, which cannot describe the overall heating condition of the battery pack during the charging and discharging process. In order to accurately match the current working mode for the adjustment unit, the single cell temperature of the battery pack and the overall dimension of the battery pack are used as indicators to jointly predict or evaluate the current working temperature of the battery pack, and match the current working mode based on the current working temperature. Among them, the first temperature range and the second temperature range are basic data indicators for objectively feedback the current working temperature of the battery pack from the two dimensions of the single cell and the battery pack as a whole. There is a first mapping relationship between the first temperature range and the target cell temperature. For example, 50°C belongs to the working range v1, and 60°C is in the working range v2. There is a second mapping relationship between the first temperature range and the target cell temperature. For example, 40°C belongs to the working range t1, and 45°C belongs to the working range t2. It can be understood that the first temperature range and the second temperature range belong to different temperature range division standards.

[0091] As an example, the control unit uses the target battery cell temperature as an index to query the first temperature range in which the target battery cell temperature is currently located; the control unit obtains the average value of the temperatures of each battery cell, takes the average value of the temperatures of each battery cell as the overall temperature of the battery pack, and uses the overall temperature as an index to query the second temperature range in which the overall temperature is currently located; the control unit constructs a first temperature index corresponding to the first temperature range and a second temperature index corresponding to the second temperature range, and inputs the first temperature index and the second temperature index into a preset temperature prediction model to predict the current operating temperature of the battery pack, wherein the first temperature index and the second temperature index can be different specific temperature values; the control unit uses the current operating temperature as an index to query the current operating mode of the adjustment unit.

[0092] This embodiment constructs the first temperature index and the second temperature index under different data dimensions by objectively feeding back the actual operating temperature of the battery pack through the maximum single cell temperature and the overall average cell temperature, and uses the preset temperature prediction model with the first temperature index and the second temperature index as input data to predict the actual operating temperature of the battery pack, and finally matches the actual operating temperature with the corresponding current operating mode, thereby achieving the purpose of accurately controlling the actual current operating mode of the battery pack, and thus laying a foundation for improving the adjustment effect of battery pack cooling regulation.

[0093] In an exemplary embodiment, the regulating unit includes a first guide impeller and a second guide impeller, the first guide impeller and the second guide impeller are symmetrically mounted on both sides of a center line of a placement axis corresponding to each battery module, and the center line of the placement axis is perpendicular to the placement direction of each battery module; regulating the coolant circulating in the coolant flow channel by the regulating unit in the current working mode includes one of the following:

[0094] The first guide impeller is used to adjust the coolant circulating in the coolant flow channel in the current working mode; the second guide impeller is used to adjust the coolant circulating in the coolant flow channel in the current working mode; the first guide impeller and the second guide impeller are used together to adjust the coolant circulating in the coolant flow channel in the current working mode

[0095] As an example, the coolant circulates in the coolant flow channel through the first guide impeller at a first rotational speed adapted to the current operating mode; the coolant circulates in the coolant flow channel through the second guide impeller at a first rotational speed adapted to the current operating mode; the coolant circulates in the coolant flow channel through the first guide impeller and the second guide impeller together at the first rotational speed adapted to the current operating mode.

[0096] In this embodiment, an adjustment unit consisting of a first guide impeller and a second guide impeller is symmetrically arranged on both sides of the center line of the placement axis indicated by each battery module. The working state of the first guide impeller and / or the second guide impeller can be adapted to the current working mode of the adjustment unit, thereby reducing the working time or workload of the first guide impeller and / or the second guide impeller. At the same time, the first guide impeller and the second guide impeller arranged at different positions can also improve the convection capacity of the coolant at the corresponding position of the second box cavity. Therefore, this embodiment improves the working life of the adjustment unit while further improving the adjustment effect of the battery pack cooling adjustment.

[0097] In an exemplary embodiment, the regulating unit is fixed to the first box cavity, each of the battery modules is placed in the second box cavity, and the flow channel hole is provided on the isolation assembly; wherein,

[0098] The liquid inlet and the liquid outlet are located on the first side wall of the box body, a first distance between the flow channel hole and the second side wall of the box body is smaller than a second distance between the flow channel hole and the first side wall, the first side wall and the second side wall are opposite to each other, the coolant circulates in a first main flow channel arranged along a first direction in the first box body cavity, the coolant circulates in a second main flow channel arranged along a second direction between the first box body cavity and the second box body cavity, and the coolant circulates in a third main flow channel arranged along a third direction in the second box body cavity, the first direction, the second direction and the third direction are different, and the first main flow channel, the second main flow channel and the third main flow channel together constitute the coolant flow channel.

[0099] In an exemplary embodiment, any of the battery modules comprises a plurality of battery cells, and the battery cells are arranged at intervals; wherein,

[0100] The third main flow channel includes a first branch channel formed by the gaps between the battery modules, a second branch channel formed by the gaps between the battery cells, and a third branch channel formed on the top of each battery cell, wherein the flow directions of the first branch channel and the second branch channel are perpendicular to each other, and the flow directions of the first branch channel and the third branch channel are parallel to each other.

[0101] In an exemplary embodiment, the isolation assembly includes a first isolation component and a second isolation component, the box body and the first isolation component are fixedly connected, the second isolation component is detachably connected to the box body and the first isolation component respectively, and the flow channel hole is inlaid by the second side wall and the first isolation component; wherein,

[0102] The first isolation component is used to isolate each of the battery modules and the adjustment unit, and the second isolation component is used to isolate the box and the external space.

[0103] In an exemplary embodiment, the first isolation component includes a first support plate and a second support plate arranged at intervals, the first support plate is fixedly connected to the third side wall of the box body, the third side wall is adjacent to the first side wall and the second side wall, one end of the second support plate is respectively fixedly connected to the isolation component and the first side wall, the other end of the second support plate extends to the second side wall along a preset direction and is fixedly connected, each of the battery modules includes a first battery module and a second battery module; wherein,

[0104] The first battery module is jointly supported by the first support plate and the second support plate, the second battery module is supported by the second support plate, the flow channel hole includes a first main flow channel hole and a second main flow channel hole, the first main flow channel hole is jointly inlaid by the first support plate, the bottom wall of the first battery module, the second support plate and the second side wall, and the second main flow channel hole is jointly inlaid by the second support plate, the bottom wall of the second battery module and the second side wall.

[0105] In an exemplary embodiment, the battery pack further includes a filling component, the filling component is streamlined, the filling component is fixed in the first box cavity, and the first center position of the filling component and the second center position of the flow channel hole are located on the same straight line; wherein,

[0106] The filling component is parallel to the fixing direction of the first box cavity and the flow direction of the flow channel hole, and a gap is left between the filling component and the isolation component, wherein the filling component is used to guide the coolant in the first box cavity to flow to the flow channel hole.

[0107] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0108] Based on the same inventive concept, the embodiment of the present application also provides a computer device for implementing the cooling adjustment method involved above. The computer device may be a terminal, and its internal structure diagram may be as shown in FIG. Figure 8As shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, near field communication (NFC) or other technologies. When the computer program is executed by the processor, a cooling adjustment method is implemented. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0109] Those skilled in the art will understand that Figure 8 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0110] In one embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above method embodiments when executing the computer program.

[0111] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0112] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0113] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0114] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0115] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0116] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An immersion energy storage system, characterized in that: The system includes a temperature detection unit, a control unit, and an adjustment unit installed in a battery pack, wherein the control unit is respectively in communication with the temperature detection unit and the adjustment unit, wherein the battery pack includes a box, a plurality of battery modules, and an isolation component disposed in the box, wherein the box and the isolation component are fixedly connected, wherein the battery modules are arranged at intervals in the box, and wherein a cooling liquid for immersing the battery modules is disposed in the box; wherein, A liquid inlet and a liquid outlet are provided on the same side wall of the box body, the box body is separated into a first box body cavity and a second box body cavity by the isolation component, the liquid inlet is located in the first box body cavity, the liquid outlet is located in the second box body cavity, a flow channel hole is provided between the first box body cavity and the second box body cavity, a coolant flow channel is formed between the first box body cavity and the second box body cavity through the flow channel hole, and the coolant circulates along the coolant flow channel from the liquid inlet to the liquid outlet; The temperature detection unit is used to detect the temperature of the battery cells of each battery module; The control unit is configured to, when determining that there is a target cell temperature greater than a preset cell temperature threshold among the cell temperatures, match the current working mode indicated by each of the cell temperatures to the adjustment unit, and control the adjustment unit to be in the current working mode; The regulating unit is used to regulate the coolant circulating in the coolant flow channel in the current working mode, wherein the regulating unit is fixed to the first box cavity, each of the battery modules is placed in the second box cavity, the flow channel hole is arranged on the isolation component, the isolation component includes a first isolation component and a second isolation component, the box and the first isolation component are fixedly connected, the second isolation component is detachably connected to the box and the first isolation component respectively, and the flow channel hole is inlaid by the second side wall of the box and the first isolation component; wherein, The first isolation component is used to isolate each of the battery modules and the adjustment unit, and the second isolation component is used to isolate the box and the external space.

2. The system according to claim 1, characterized in that The liquid inlet and the liquid outlet are located on the first side wall of the box body, a first distance between the flow channel hole and the second side wall of the box body is smaller than a second distance between the flow channel hole and the first side wall, the first side wall and the second side wall are opposite to each other, the coolant circulates in a first main flow channel arranged along a first direction in the first box body cavity, the coolant circulates in a second main flow channel arranged along a second direction between the first box body cavity and the second box body cavity, and the coolant circulates in a third main flow channel arranged along a third direction in the second box body cavity, the first direction, the second direction and the third direction are different, and the first main flow channel, the second main flow channel and the third main flow channel together constitute the coolant flow channel.

3. The system according to claim 2, characterized in that Any of the battery modules comprises a plurality of battery cells, and the battery cells are arranged at intervals; wherein, The third main flow channel includes a first branch channel formed by the gaps between the battery modules, a second branch channel formed by the gaps between the battery cells, and a third branch channel formed on the top of each battery cell, wherein the flow directions of the first branch channel and the second branch channel are perpendicular to each other, and the flow directions of the first branch channel and the third branch channel are parallel to each other.

4. The system according to claim 1, characterized in that The first isolation component includes a first support plate and a second support plate arranged at intervals, the first support plate is fixedly connected to the third side wall of the box body, the third side wall is adjacent to the first side wall and the second side wall, one end of the second support plate is respectively fixedly connected to the isolation component and the first side wall, the other end of the second support plate extends to the second side wall along a preset direction and is fixedly connected, each of the battery modules includes a first battery module and a second battery module; wherein, The first battery module is jointly supported by the first support plate and the second support plate, the second battery module is supported by the second support plate, the flow channel hole includes a first main flow channel hole and a second main flow channel hole, the first main flow channel hole is jointly inlaid by the first support plate, the bottom wall of the first battery module, the second support plate and the second side wall, and the second main flow channel hole is jointly inlaid by the second support plate, the bottom wall of the second battery module and the second side wall.

5. The system according to claim 2, characterized in that The battery pack further includes a filling component, which is streamlined and fixed in the first box cavity, and a first center position of the filling component and a second center position of the flow channel hole are located on the same straight line; wherein, The filling component is parallel to the fixing direction of the first box cavity and the flow direction of the flow channel hole, and a gap is left between the filling component and the isolation component, wherein the filling component is used to guide the coolant in the first box cavity to flow to the flow channel hole.

6. The system according to claim 5, characterized in that A gap height between the filling component and the isolation component is greater than a thickness of the isolation component.

7. The system according to claim 1, characterized in that The regulating unit includes a first guide impeller and a second guide impeller, and the first guide impeller and the second guide impeller are symmetrically installed on both sides of the center line of the placement axis corresponding to each of the battery modules, and the center line of the placement axis is perpendicular to the placement direction of each of the battery modules.

8. A cooling and regulating method, characterized in that: Applied to an immersion energy storage system, the system includes a temperature detection unit, a control unit and an adjustment unit installed in a battery pack, the control unit is respectively connected to the temperature detection unit and the adjustment unit for communication, wherein the battery pack includes a box, a plurality of battery modules and an isolation component arranged in the box, the box and the isolation component are fixedly connected, the battery modules are arranged at intervals in the box, and a cooling liquid for immersing the battery modules is arranged in the box; wherein, A liquid inlet and a liquid outlet are provided on the same side wall of the box body, the box body is separated into a first box body cavity and a second box body cavity by the isolation component, the liquid inlet is located in the first box body cavity, the liquid outlet is located in the second box body cavity, a flow channel hole is provided between the first box body cavity and the second box body cavity, a coolant flow channel is formed between the first box body cavity and the second box body cavity through the flow channel hole, and the coolant circulates along the coolant flow channel from the liquid inlet to the liquid outlet, wherein the regulating unit is fixed to the first box body cavity, each of the battery modules is placed in the second box body cavity, the flow channel hole is provided on the isolation component, the isolation component includes a first isolation component and a second isolation component, the box body and the first isolation component are fixedly connected, the second isolation component is detachably connected to the box body and the first isolation component respectively, and the flow channel hole is inlaid by the second side wall of the box body and the first isolation component; wherein the first isolation component is used to isolate each of the battery modules and the regulating unit, and the second isolation component is used to isolate the box body from the external space; the method includes: Detecting the battery cell temperature of each of the battery modules by the temperature detection unit; When determining, by the control unit, that there is a target cell temperature greater than a preset cell temperature threshold among the cell temperatures, matching the current working mode indicated by each of the cell temperatures for the regulating unit, and controlling the regulating unit to be in the current working mode; The coolant circulating in the coolant flow channel is regulated by the regulating unit in the current working mode.

9. The method according to claim 8, characterized in that The step of matching the current working mode indicated by the temperatures of the battery cells to the regulating unit includes: Acquire a first temperature range in which the target battery core temperature is currently located; The temperatures of the battery cells are merged to obtain the overall temperature of the battery pack, and a second temperature interval of the overall temperature is determined, wherein the overall temperature of the battery pack is an average value of the temperatures of the battery cells of the battery pack; Predicting a current operating temperature of the battery pack according to the first temperature interval and the second temperature interval, wherein the first temperature interval and the second temperature interval belong to different temperature interval division standards, and the current operating temperature is used to characterize a current overall heating condition of the battery pack during the charging and discharging process; According to the current operating temperature, the current operating mode of the regulating unit is queried.

10. The method according to claim 8, characterized in that The regulating unit comprises a first guide vane and a second guide vane, wherein the first guide vane and the second guide vane are symmetrically mounted on two sides of a center line of a placement axis corresponding to each of the battery modules, and the center line of the placement axis is perpendicular to a placement direction of each of the battery modules; The step of regulating the coolant circulating in the coolant flow channel by the regulating unit in the current working mode includes one of the following: regulating the coolant circulating in the coolant flow channel by the first guide impeller in the current working mode; regulating the coolant circulating in the coolant flow channel by the second guide impeller in the current working mode; The coolant circulating in the coolant flow channel is regulated by the first guide vane and the second guide vane together in the current working mode.

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