A liquid cooling system for energy storage

Abstract

The present invention relates to the technical field of energy storage and cooling, and specifically discloses a liquid cooling system for energy storage, including a base plate, a surrounding plate, a cover plate and a liquid cooling mechanism, the liquid cooling mechanism including a liquid cooling battery pack, a liquid inlet pump group, a liquid discharge pipe group and a circulating water cooling cabin, the surrounding plate is fixedly connected to the base plate, a plurality of groups of liquid cooling battery packs are respectively arranged at the upper end of the base plate, the liquid inlet pump group is arranged at the upper end of the base plate, the liquid discharge pipe group is arranged at the upper end of the base plate, the circulating water cooling cabin is arranged at the upper end of the base plate, the output end of the liquid discharge pipe group is connected to the circulating water cooling cabin, the cover plate is arranged at the upper end of the surrounding plate, and the cover plate covers the surrounding plate. The above structural arrangement avoids the single cell being still in a high temperature environment, and cools down the temperature generated by the single cell without transmitting through the shell, thereby directly cooling down the inside of the battery, improving the cooling efficiency and the service life and performance of the battery.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage and cooling, and in particular to a liquid cooling system for energy storage. Background Art

[0002] At present, energy storage batteries are batteries that can store electrical energy and release it when needed. In power systems, energy storage batteries are often used to balance power systems, stabilize power grids and provide auxiliary services. The operating temperature range of the battery is usually between 0 and 55°C. Too high or too low temperature will affect the battery's service life and performance. Although insulation technology can effectively alleviate the impact of ambient temperature on the battery, it cannot alleviate the heat generation of the battery during use. Therefore, a temperature control mechanism is needed to adjust the battery's operating temperature.

[0003] The prior art CN116111229A provides a liquid cooling system for energy storage, which uses a water pump to transport cooling water between battery modules, absorbs the heat energy emitted by the battery modules and the heat energy in the battery panels, and continuously cools down through circulating water until the temperature inside the energy storage battery is at normal operating temperature.

[0004] However, in the prior art, the cooling circulation system is installed between the battery modules to absorb the heat emitted by the battery modules, but it cannot effectively cool down the single cells in the battery modules. The cooling efficiency is low, so that the single cells are still in a temperature environment that exceeds the normal working temperature. Summary of the invention

[0005] The purpose of the present invention is to provide a liquid cooling system for energy storage, aiming to solve the technical problem in the prior art that a cooling circulation system is installed between battery modules to absorb the heat emitted by the battery modules, but cannot effectively cool down the single cells in the battery modules, and the cooling efficiency is low, so that the single cells are still in a temperature environment that exceeds the normal working temperature.

[0006] To achieve the above-mentioned purpose, the present invention adopts a liquid cooling system for energy storage, comprising a base plate, a surrounding plate, a cover plate and a liquid cooling mechanism, wherein the liquid cooling mechanism comprises a liquid-cooled battery group, a liquid inlet pump group, a liquid discharge pipe group and a circulating water cooling cabin, the surrounding plate is fixedly connected to the base plate and is located at the upper end of the base plate, the number of the liquid-cooled battery groups is multiple, and the multiple groups of liquid-cooled battery groups are respectively arranged at the upper end of the base plate, the liquid inlet pump group is arranged at the upper end of the base plate, and the output end of the liquid inlet pump group is connected to the multiple groups of liquid-cooled battery groups, the liquid discharge pipe group is arranged at the upper end of the base plate, and the input end of the liquid discharge pipe group is connected to the multiple groups of liquid-cooled battery groups, the circulating water cooling cabin is arranged at the upper end of the base plate, and the input end of the liquid inlet pump group is connected to the circulating water cooling cabin, and the output end of the liquid discharge pipe group is connected to the circulating water cooling cabin, the cover plate is arranged at the upper end of the surrounding plate, and the cover plate covers the surrounding plate.

[0007] Among them, each group of the liquid-cooled battery pack includes a battery body, a battery shell, a copper plate, an aluminum nitride ceramic bin, a liquid inlet bin group and a liquid drainage bin. The battery shell is fixedly connected to the substrate and is located at the upper end of the substrate. The battery body is arranged inside the substrate. There are two copper plates, which are respectively fixedly connected to the battery shell and embedded in both sides of the battery shell. There are two aluminum nitride ceramic bins, each of which is embedded in one side of the corresponding copper plate. The liquid inlet bin group and the liquid drainage bin are respectively arranged on both sides of the battery shell, and the two ends of each aluminum nitride ceramic bin are respectively connected to the corresponding liquid inlet bin group and the liquid drainage bin.

[0008] Wherein, each group of the liquid-cooled battery packs also includes thermal conductive silicone grease, and the thermal conductive silicone grease is filled between each of the copper plates and the aluminum nitride ceramic chamber.

[0009] Among them, the liquid inlet tank group includes a liquid inlet tank body and a first solenoid valve, the liquid inlet tank body is fixedly connected to the battery shell and is located on one side of the battery shell, and the liquid inlet tank body is connected to the aluminum nitride ceramic tank, the number of the first solenoid valves is three, and the two ends of the three solenoid valves are respectively connected to the liquid inlet tank body and the liquid inlet pump group.

[0010] Wherein, the liquid inlet pump group includes a liquid inlet main pipe, a first liquid inlet pump, a second liquid inlet pump, a third liquid inlet pump, a second solenoid valve and a third solenoid valve, the liquid inlet main pipe is connected to multiple first solenoid valves, the two ends of the first liquid inlet pump are respectively connected to the liquid inlet main pipe and the circulating water cooling cabin, the second liquid inlet pump is connected to the circulating water cooling cabin, the two ends of the second solenoid valve are respectively connected to the second liquid inlet pump and the liquid inlet main pipe, the third liquid inlet pump is connected to the circulating water cooling cabin, and the two ends of the third solenoid valve are respectively connected to the third liquid inlet pump and the liquid inlet main pipe.

[0011] Among them, the liquid cooling system for energy storage also includes a mounting base plate, a cooling cover and a TEC thermocouple cooling sheet. The mounting base plate is fixedly connected to the circulating water cooling chamber and is located inside the circulating water cooling chamber. The cooling cover is fixedly connected to the mounting base plate, and the cooling cover covers the mounting base plate. There are multiple TEC thermocouple cooling sheets, each of which is fixedly connected to the mounting base plate and embedded in the mounting base plate, and the upper end of each TEC thermocouple cooling sheet is in contact with the cooling cover.

[0012] Among them, the liquid cooling system for energy storage also includes an air temperature sensor and a liquid temperature sensor. The number of the air temperature sensors is multiple, and each of the air temperature sensors is respectively arranged at the lower end of the cover plate. The liquid temperature sensor is fixedly connected to the circulating water cooling cabin and is located inside the circulating water cooling cabin.

[0013] The liquid cooling system for energy storage of the present invention integrates and installs a plurality of liquid-cooled battery packs through the base plate, the enclosure plate and the cover plate, stores coolant in the circulating water cooling cabin, pumps the coolant into the corresponding liquid-cooled battery pack through the liquid inlet pump group, and discharges the coolant in the liquid-cooled battery pack back into the circulating water cooling cabin through the discharge pipe group, thereby achieving circulation, and in the liquid-cooled battery pack, the single cell can be directly cooled to improve the cooling effect, while also avoiding the problems of conductivity and leakage. The above structural arrangement can achieve the purpose of cooling the energy storage system, and also cool the single cell, avoiding the single cell still being in a high-temperature environment, and cooling the temperature generated by the single cell without transmitting through the shell, thereby achieving direct cooling of the inside of the battery, thereby improving the cooling efficiency and the service life and performance of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic structural diagram of the first embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the internal structure of the first embodiment of the present invention.

[0017] Figure 3 It is a partial structural cross-sectional view of the first embodiment of the present invention.

[0018] Figure 4 It is a schematic diagram of the internal structure of the second embodiment of the present invention.

[0019] Figure 5 It is a structural cross-sectional view of the second embodiment of the present invention.

[0020] Figure 6 It is a schematic structural diagram of the third embodiment of the present invention.

[0021] Figure 7 It is a schematic diagram of the internal structure of the third embodiment of the present invention.

[0022] Figure 8 It is a structural cross-sectional view of the third embodiment of the present invention.

[0023] 101-substrate, 102-enclosure, 103-cover, 104-battery body, 105-battery shell, 106-copper plate, 107-aluminum nitride ceramic warehouse, 108-liquid inlet warehouse body, 109-first solenoid valve, 110-liquid discharge warehouse, 111-liquid inlet main pipe, 112-first liquid inlet pump, 113-second liquid inlet pump, 114-third liquid inlet pump, 115-second solenoid valve, 116-third solenoid valve, 117-liquid discharge pipe group, 118-circulating water cooling cabin, 119-thermal grease, 201-installation base plate, 202-cooling cover, 203-TEC thermocouple cooling sheet, 204-air temperature sensor, 205-liquid temperature sensor, 301-mesh plate, 302-filter plate, 303-drive radiator, 304-heat dissipation base plate, 305-heat dissipation fins. DETAILED DESCRIPTION

[0024] The first embodiment of the present application is:

[0025] See also Figures 1 to 3 ,in Figure 1is a schematic structural diagram of a first embodiment of the present invention, Figure 2 is a schematic diagram of the internal structure of the first embodiment of the present invention, Figure 3 It is a partial structural cross-sectional view of the first embodiment of the present invention.

[0026] The present invention provides a liquid cooling system for energy storage: comprising a base plate 101, a surrounding plate 102, a cover plate 103 and a liquid cooling mechanism, wherein the liquid cooling mechanism comprises a liquid-cooled battery pack, a liquid inlet pump group, a liquid discharge pipe group 117 and a circulating water cooling cabin 118, wherein the liquid-cooled battery pack comprises a battery body 104, a battery shell 105, a copper plate 106, an aluminum nitride ceramic warehouse 107, a liquid inlet warehouse group, a liquid discharge warehouse 110 and thermal grease 119, wherein the liquid inlet warehouse group comprises a liquid inlet warehouse body 108 and a first solenoid valve 109, wherein the liquid inlet pump group comprises a liquid inlet main pipe 111, a first liquid inlet pump 112, a second liquid inlet pump 113, a third liquid inlet pump 114, a second solenoid valve 115 and a third solenoid valve 116.

[0027] The enclosure 102 is fixedly connected to the substrate 101 and is located at the upper end of the substrate 101. The number of the liquid-cooled battery packs is multiple, and the multiple liquid-cooled battery packs are respectively arranged at the upper end of the substrate 101. The liquid inlet pump group is arranged at the upper end of the substrate 101, and the output end of the liquid inlet pump group is connected to the multiple liquid-cooled battery packs. The drain pipe group 117 is arranged at the upper end of the substrate 101, and the input end of the drain pipe group 117 is connected to the multiple liquid-cooled battery packs. The circulating water cooling cabin 118 is arranged at the upper end of the substrate 101, and the input end of the liquid inlet pump group is connected to the circulating water cooling cabin 118, and the output end of the drain pipe group 117 is connected to the The circulating water cooling cabin 118 is connected, the cover plate 103 is arranged at the upper end of the enclosure 102, and the cover plate 103 covers the enclosure 102, the substrate 101, the enclosure 102 and the cover plate 103 integrate and install multiple liquid-cooled battery packs, the circulating water cooling cabin 118 stores coolant, and the coolant is pumped into the corresponding liquid-cooled battery pack through the liquid inlet pump group, and the coolant in the liquid-cooled battery pack is discharged back to the circulating water cooling cabin 118 through the discharge pipe group 117, so as to achieve circulation, and in the liquid-cooled battery pack, the single battery can be directly cooled to improve the cooling effect, while also avoiding the problems of conductivity and leakage.

[0028] Secondly, the battery shell 105 is fixedly connected to the substrate 101 and is located at the upper end of the substrate 101. The battery body 104 is arranged inside the substrate 101. The number of the copper plates 106 is two. The two copper plates 106 are respectively fixedly connected to the battery shell 105 and are respectively embedded in the two sides of the battery shell 105. The number of the aluminum nitride ceramic bins 107 is two. Each of the aluminum nitride ceramic bins 107 is respectively embedded in one side of the corresponding copper plate 106. The liquid inlet bin group and the liquid drainage bin 110 are respectively arranged on both sides of the battery shell 105, and the two ends of each of the aluminum nitride ceramic bins 107 are respectively connected to the corresponding liquid inlet bin group and the liquid drainage bin 110. The battery body 104 generates electricity and emits a large amount of heat energy. The battery body 104 is sealed by the battery shell 105 and the copper plate 106. The copper plate 106 seals the battery shell 105 and improves the heat transfer efficiency. In order to avoid the conductive problem, the aluminum nitride ceramic warehouse 107 is arranged on one side of the copper plate 106 to act as an insulator. The coolant flows in the aluminum nitride ceramic warehouse 107 for water cooling. The battery body 104 generates heat and transfers it to the copper plate 106, and then transfers it to the aluminum nitride ceramic warehouse 107 by the copper plate 106, and the heat is taken away by the coolant. The liquid inlet tank is for the coolant to enter, and the liquid discharge tank 110 is for the coolant to discharge.

[0029] At the same time, the thermal grease 119 is filled between each of the copper plates 106 and the aluminum nitride ceramic bin 107. The thermal grease 119 fills the gap between the copper plates 106 and the aluminum nitride ceramic bin 107 to improve the thermal conductivity and reduce the amplitude of the aluminum nitride ceramic bin 107, thereby preventing the aluminum nitride ceramic bin 107 from being damaged due to high-frequency vibration.

[0030] In addition, the liquid inlet tank body 108 is fixedly connected to the battery shell 105 and is located on one side of the battery shell 105, and the liquid inlet tank body 108 is connected to the aluminum nitride ceramic tank 107. The number of the first solenoid valves 109 is three, and the two ends of the three solenoid valves are respectively connected to the liquid inlet tank body 108 and the liquid inlet pump group. The rate at which the coolant enters the liquid inlet tank body 108 can be adjusted through the first solenoid valve 109 to achieve the purpose of controlling the cooling efficiency.

[0031] Furthermore, the liquid inlet main pipe 111 is communicated with a plurality of the first solenoid valves 109, the two ends of the first liquid inlet pump 112 are respectively communicated with the liquid inlet main pipe 111 and the circulating water cooling chamber 118, the second liquid inlet pump 113 is communicated with the circulating water cooling chamber 118, the two ends of the second solenoid valve 115 are respectively communicated with the second liquid inlet pump 113 and the liquid inlet main pipe 111, the third liquid inlet pump 114 is communicated with the circulating water cooling chamber 118, the two ends of the third solenoid valve 116 are respectively communicated with the The third liquid inlet pump 114 is connected to the liquid inlet main pipe 111, the first liquid inlet pump 112 pumps the coolant of the circulating water cooling chamber 118 into the liquid inlet main pipe 111, and then pumps it into the liquid inlet tank body 108 through the liquid inlet main pipe 111, the second liquid inlet pump 113 and the second solenoid valve 115 form a secondary cooling efficiency to improve the circulation rate of the coolant, the third liquid inlet pump 114 and the third solenoid valve 116 form a tertiary cooling efficiency to further significantly improve the circulation rate of the coolant.

[0032] When using a liquid cooling system for energy storage of the present embodiment, the base plate 101, the enclosure 102 and the cover plate 103 are integrated and installed for a plurality of the liquid-cooled battery packs, the circulating water cooling chamber 118 stores the coolant, and the coolant is pumped into the corresponding liquid-cooled battery pack through the liquid inlet pump group, and the coolant in the liquid-cooled battery pack is discharged back into the circulating water cooling chamber 118 through the discharge pipe group 117, so as to achieve circulation, and in the liquid-cooled battery pack, the single battery can be directly cooled, thereby improving the cooling effect, and avoiding the problems of conductivity and leakage. The battery body 104 generates electricity and emits a large amount of heat energy at the same time. The battery body 104 is sealed by the battery shell 105 and the copper plate 106. The copper plate 106 seals the battery shell 105 and improves the heat transfer efficiency. If the conductive problem is not avoided, the aluminum nitride ceramic warehouse 107 is arranged on one side of the copper plate 106 to play an insulating role. The coolant flows in the aluminum nitride ceramic warehouse 107 for water cooling. The battery body 104 generates heat and transfers it to the copper plate 106, and then the copper plate 106 transfers it to the aluminum nitride ceramic The heat is taken away by the coolant in the tank 107, the coolant is fed into the liquid inlet tank, the coolant is discharged from the liquid discharge tank 110, the gap between the copper plate 106 and the aluminum nitride ceramic tank 107 is filled by the thermal grease 119, the heat conduction efficiency is improved, and the shock absorption effect is achieved, the amplitude generated by the aluminum nitride ceramic tank 107 is reduced, and the aluminum nitride ceramic tank 107 is prevented from being damaged by high-frequency vibration. The first liquid inlet pump 112 pumps the coolant of the circulating water cooling tank 118 into the liquid inlet main pipe 111, and then the liquid inlet main pipe 111 passes through the The first solenoid valve 109 pumps liquid into the liquid inlet tank body 108. If one of the first solenoid valves 109 is opened, it is a primary cooling. If the second liquid inlet pump 113 and the second solenoid valve 115 are opened, and two of the first solenoid valves 109 are opened at the same time, it is a secondary cooling. If the second liquid inlet pump 113, the third liquid inlet pump 114, the second solenoid valve 115 and the third solenoid valve 116 are opened, and three of the first solenoid valves 109 are opened at the same time, it is a triple cooling. It can be adjusted accordingly according to usage requirements and usage environment to achieve the purpose of energy saving and avoid waste of electricity caused by excessive cooling.

[0033] The second embodiment of the present application is:

[0034] Based on the first embodiment, please refer to Figure 4 and Figure 5 ,in Figure 4 is a schematic diagram of the internal structure of the second embodiment of the present invention, Figure 5 It is a structural cross-sectional view of the second embodiment of the present invention.

[0035] The present invention provides a liquid cooling system for energy storage, which also includes a mounting base plate 201 , a cooling cover 202 , a TEC thermocouple cooling sheet 203 , a liquid temperature sensor 205 and an air temperature sensor 204 .

[0036] The mounting base plate 201 is fixedly connected to the circulating water cooling chamber 118 and is located inside the circulating water cooling chamber 118. The cooling cover 202 is fixedly connected to the mounting base plate 201 and covers the mounting base plate 201. There are multiple TEC thermocouple cooling plates 203, each of which is fixedly connected to the mounting base plate 201 and embedded in the mounting base plate 201, and the upper end of each TEC thermocouple cooling plate 203 is in contact with the cooling cover 202. The TEC thermocouple cooling plates 203 are installed and placed through the mounting base plate 201 and the cooling cover 202, and the TEC thermocouple cooling plates 203 are started to cool their upper ends. The cooling cover 202 is in contact with the TEC thermocouple cooling plates 203 to absorb heat from the cooling cover 202 and the coolant, thereby achieving the purpose of cooling the coolant.

[0037] Secondly, there are multiple air temperature sensors 204, each of which is respectively arranged at the lower end of the cover plate 103. The liquid temperature sensor 205 is fixedly connected to the circulating water cooling chamber 118 and is located inside the circulating water cooling chamber 118. The air temperature sensor 204 detects the temperature of the upper end of the liquid-cooled battery pack, adjusts the cooling level according to the temperature range, and detects the temperature of the coolant in real time through the liquid temperature sensor 205, and controls the start and stop of the TEC thermocouple cooling plate 203 according to the temperature of the coolant.

[0038] When using a liquid cooling system for energy storage according to the present embodiment, the TEC thermocouple cooling sheet 203 is installed and placed through the installation base plate 201 and the cooling cover 202, the TEC thermocouple cooling sheet 203 is started to cool its upper end, the cooling cover 202 contacts the TEC thermocouple cooling sheet 203, absorbs heat from the cooling cover 202 and the coolant, and achieves the purpose of cooling the coolant, the air temperature sensor 204 detects the temperature of the upper end of the liquid-cooled battery pack, and adjusts the cooling level according to the temperature range, the temperature of the coolant is detected in real time by the liquid temperature sensor 205, and the TEC thermocouple cooling sheet 203 is controlled to be stopped and started according to the temperature of the coolant.

[0039] The third embodiment of the present application is:

[0040] Based on the second embodiment, please refer to Figures 6 to 8 ,in Figure 6 is a schematic structural diagram of a third embodiment of the present invention, Figure 7 is a schematic diagram of the internal structure of the third embodiment of the present invention, Figure 8 It is a structural cross-sectional view of the third embodiment of the present invention.

[0041] The present invention provides a liquid cooling system for energy storage: it also includes an exhaust component, a heat dissipation base plate 304 and heat dissipation fins 305, and the exhaust component includes a mesh plate 301, a filter plate 302 and a driving radiator 303.

[0042] There are multiple groups of exhaust components, each group of exhaust components is respectively embedded in the peripheral side of the enclosure 102, and the exhaust components discharge the hot air between the substrate 101, the enclosure 102 and the cover plate 103.

[0043] Secondly, the mesh plate 301 is fixedly connected to the enclosure 102 and embedded in one side of the enclosure 102. The filter plate 302 is fixedly connected to the enclosure 102 and located on one side of the mesh plate 301. The driving radiator 303 is fixedly connected to the enclosure 102 and located inside the enclosure 102. Filtering is performed through the mesh plate 301 and the filter plate 302 to prevent debris and dust from entering the interior of the enclosure 102. By opening the driving radiator 303, the hot air inside the enclosure 102 is discharged through the mesh plate 301 and the filter plate 302.

[0044] At the same time, there are multiple heat dissipation base plates 304, each of which is fixedly connected to the corresponding battery housing 105 and is respectively located at the upper end of the corresponding battery housing 105. There are multiple heat dissipation fins 305, each of which is fixedly connected to the corresponding heat dissipation base plate 304 and is respectively located at the upper end of the corresponding heat dissipation base plate 304. The heat dissipation capacity of the battery housing 105 can be improved through the heat dissipation base plate 304 and the heat dissipation fins 305, and the heat dissipation efficiency of the driving radiator 303 can be improved.

[0045] When using a liquid cooling system for energy storage according to the present embodiment, filtering is performed through the mesh plate 301 and the filter plate 302 to prevent debris and dust from entering the interior of the enclosure 102. The hot air inside the enclosure 102 is discharged through the mesh plate 301 and the filter plate 302 by opening the driving radiator 303. The driving radiator 303 is turned on for a period of time and then stopped, so that an air difference is formed between the inside and the outside of the enclosure 102, so that external air can enter the interior of the enclosure 102 through the mesh plate 301 and the filter plate 302. The heat dissipation base plate 304 and the heat dissipation fins 305 can improve the heat dissipation capacity of the battery housing 105 and improve the heat dissipation efficiency of the driving radiator 303.

[0046] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A liquid cooling system for energy storage, comprising a base plate, a shroud plate and a cover plate, characterized in that: Also includes a liquid cooling mechanism; The liquid cooling mechanism comprises a liquid-cooled battery pack, a liquid inlet pump group, a liquid discharge pipe group and a circulating water cooling cabin. The enclosure is fixedly connected to the base plate and is located at the upper end of the base plate. The number of the liquid-cooled battery packs is multiple, and the multiple liquid-cooled battery packs are respectively arranged at the upper end of the base plate. The liquid inlet pump group is arranged at the upper end of the base plate, and the output end of the liquid inlet pump group is communicated with the multiple liquid-cooled battery packs. The liquid discharge pipe group is arranged at the upper end of the base plate, and the input end of the liquid discharge pipe group is communicated with the multiple liquid-cooled battery packs. The circulating water cooling cabin is arranged at the upper end of the base plate, and the input end of the liquid inlet pump group is communicated with the circulating water cooling cabin, and the output end of the liquid discharge pipe group is communicated with the circulating water cooling cabin. The cover plate is arranged at the upper end of the enclosure plate, and the cover plate covers the enclosure plate; Each group of the liquid-cooled battery packs includes a battery body, a battery shell, a copper plate, an aluminum nitride ceramic bin, a liquid inlet bin group and a liquid drainage bin. The battery shell is fixedly connected to the substrate and is located at the upper end of the substrate. The battery body is arranged inside the substrate. There are two copper plates, which are respectively fixedly connected to the battery shell and embedded in both sides of the battery shell. There are two aluminum nitride ceramic bins, each of which is embedded in one side of the corresponding copper plate. The liquid inlet bin group and the liquid drainage bin are respectively arranged on both sides of the battery shell, and the two ends of each aluminum nitride ceramic bin are respectively connected to the corresponding liquid inlet bin group and the liquid drainage bin; The liquid inlet tank group includes a liquid inlet tank body and a first solenoid valve, the liquid inlet tank body is fixedly connected to the battery housing and is located on one side of the battery housing, and the liquid inlet tank body is communicated with the aluminum nitride ceramic tank, the number of the first solenoid valves is three, and the two ends of the three solenoid valves are respectively communicated with the liquid inlet tank body and the liquid inlet pump group; The liquid inlet pump group includes a liquid inlet main pipe, a first liquid inlet pump, a second liquid inlet pump, a third liquid inlet pump, a second solenoid valve and a third solenoid valve, the liquid inlet main pipe is communicated with a plurality of the first solenoid valves, two ends of the first liquid inlet pump are respectively communicated with the liquid inlet main pipe and the circulating water cooling cabin, the second liquid inlet pump is communicated with the circulating water cooling cabin, two ends of the second solenoid valve are respectively communicated with the second liquid inlet pump and the liquid inlet main pipe, the third liquid inlet pump is communicated with the circulating water cooling cabin, and two ends of the third solenoid valve are respectively communicated with the third liquid inlet pump and the liquid inlet main pipe; It also includes an exhaust component, a heat dissipation base plate and heat dissipation fins, the exhaust component includes a mesh plate, a filter plate and a driving radiator; the number of the exhaust components is multiple, and each group of the exhaust components is respectively embedded in the surrounding side of the enclosure, the mesh plate is fixedly connected to the enclosure and embedded in one side of the enclosure, the filter plate is fixedly connected to the enclosure and is located on one side of the mesh plate, the driving radiator is fixedly connected to the enclosure and is located inside the enclosure, the number of the heat dissipation base plates is multiple, each of the heat dissipation base plates is respectively fixedly connected to the corresponding battery shell and is respectively located at the upper end of the corresponding battery shell, the number of the heat dissipation fins is multiple, each of the heat dissipation fins is respectively fixedly connected to the corresponding heat dissipation base plate and is respectively located at the upper end of the corresponding heat dissipation base plate.

2. A liquid cooling system for energy storage according to claim 1, characterized in that: Each group of the liquid-cooled battery packs also includes thermally conductive silicone grease, which is filled between each of the copper plates and the aluminum nitride ceramic chamber.

3. A liquid cooling system for energy storage according to claim 1, characterized in that: The liquid cooling system for energy storage also includes a mounting base plate, a cooling cover and a TEC thermocouple cooling sheet. The mounting base plate is fixedly connected to the circulating water cooling chamber and is located inside the circulating water cooling chamber. The cooling cover is fixedly connected to the mounting base plate, and the cooling cover covers the mounting base plate. There are multiple TEC thermocouple cooling sheets, each of which is fixedly connected to the mounting base plate and embedded in the mounting base plate, and the upper end of each TEC thermocouple cooling sheet is in contact with the cooling cover.

4. A liquid cooling system for energy storage according to claim 3, characterized in that: The liquid cooling system for energy storage also includes an air temperature sensor and a liquid temperature sensor. There are multiple air temperature sensors, each of which is respectively arranged at the lower end of the cover plate. The liquid temperature sensor is fixedly connected to the circulating water cooling cabin and is located inside the circulating water cooling cabin.

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