Liquid cooling energy storage equipment

Abstract

According to the technical scheme, the liquid cooling energy storage equipment is characterized by comprising a top cover, a base and a cabinet body; the top cover detachably covers the top of the cabinet body; the base is detachably mounted at the bottom of the cabinet body; the top cover is matched with the base and the cabinet body to form a closed cavity; an energy storage module, a liquid cooling module for cooling the energy storage module, a dual-mode fire-fighting module and a control module are mounted in the cavity; the control module is electrically connected with the energy storage module, the liquid cooling module and the dual-mode fire-fighting module; by adopting a heat dissipation mode of liquid cooling heat dissipation, the problem of low system use efficiency caused by poor heat dissipation performance of an existing air cooling heat dissipation mode can be solved; meanwhile, the design scheme of the dual-mode fire-fighting system is adopted, the fire-proof emergency processing capacity of the energy storage equipment can be effectively improved, and the fire-fighting potential safety hazards of the energy storage equipment are effectively reduced; and a detachable assembly mode of the top cover and the base is adopted, so that a user can conveniently maintain and repair the energy storage equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage equipment, and more specifically, to a liquid-cooled energy storage equipment. Background Art

[0002] Energy storage equipment is a device used in various power generation systems to realize DC / AC power conversion. The energy storage part of existing energy storage equipment mostly uses lithium batteries stacked and connected with copper bars, and uses air cooling equipment to cool the lithium batteries; and most existing energy storage equipment is energy storage equipment that is only equipped with a gas fire fighting system or a water fire fighting system; for example, the invention patent with patent number: CN202311751974.9 discloses an energy storage integrated machine that uses air cooling equipment for heat dissipation and is only equipped with a single gas fire fighting system; but the heat dissipation method of using air cooling equipment to dissipate heat from the energy storage equipment has poor heat dissipation effect, and it is easy to blow dust in the air and accumulate on the energy storage device inside the energy storage equipment, reducing the service life of the energy storage equipment; and the design method of being equipped with a single gas fire fighting system makes the fire emergency response capability of the energy storage equipment low, and there is a greater fire safety hazard; for this reason, we propose a type of liquid-cooled energy storage equipment. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a liquid-cooled energy storage device to solve the technical problems existing in the above-mentioned background technology.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: a liquid-cooled energy storage device, comprising: a top cover, a base, and a cabinet; the top cover is detachably arranged on the top of the cabinet; the base is detachably installed on the bottom of the cabinet; the top cover cooperates with the base and the cabinet to form a closed chamber; an energy storage module, a liquid cooling module for cooling the energy storage module, a dual-mode fire protection module, and a control module are installed in the chamber; the control module is electrically connected to the energy storage module, the liquid cooling module and the dual-mode fire protection module respectively.

[0005] Optionally, the dual-mode fire-fighting module includes: a fire-fighting gas cylinder, a three-way joint, a water supply pipeline, a fire-fighting pipeline, an output pipeline compatible with the energy storage module, and a plurality of nozzles; a water pipe joint compatible with the delivery pipeline is provided on the base; the water pipe joint is connected with the water supply pipeline; the two input ends of the three-way joint are respectively connected with the fire-fighting gas cylinder and the water supply pipeline; the output end of the three-way joint is connected with the fire-fighting pipeline; the output end of the fire-fighting pipeline is connected with the output pipeline; a plurality of the nozzles are installed at the output end of the output pipeline, and their output ends are all facing the energy storage module; electric one-way valves are provided on the output end of the fire-fighting gas cylinder and the output end of the water supply pipeline; the electric one-way valve is electrically connected to the control module.

[0006] Optionally, it further includes at least one composite smoke detector; the composite smoke detector is electrically connected to the control module.

[0007] Optionally, the energy storage module includes: a rectifier, a plurality of battery packs, an access bin, and a distribution component; a mounting frame is provided in the cabinet; the access bin is installed on one side of the mounting frame; a main AC circuit breaker is provided in the access bin; a plurality of battery packs are installed on the mounting frame in sequence from top to bottom; the rectifier is installed on the mounting frame and is located below the lowest battery pack; the distribution component is installed on the rack; the batteries can be electrically connected to the distribution component, rectifier, main AC circuit breaker and control module respectively; the output end of the nozzle faces the battery pack.

[0008] Optionally, the liquid cooling module includes: a circulating water tank, a water pump, and a cooling pipeline; the circulating water tank is connected to the input end of the cooling pipeline through the water pump; the cooling pipeline is wound on the mounting frame, and the output end of the cooling pipeline is connected to the circulating water tank; the water pump is electrically connected to the control module.

[0009] Optionally, the top cover includes: a support plate; bosses are provided on the front and rear sides of the support plate; an upwardly protruding arc-shaped protrusion is provided in the gap between the two bosses; two installation grooves are provided on the left and right sides of the support plate; installation holes for hanging rings to pass through are provided on the installation grooves; the support plate is connected to the cabinet body through the hanging rings; at least one reinforcing rib is provided on the arc-shaped protrusion; the two ends of the reinforcing rib are respectively perpendicular to the two bosses; the top of the arc-shaped protrusion is flush with the boss.

[0010] Optionally, an angle P between tangent lines of arc edges of the arc surfaces on both sides of the arc-shaped protrusion is 173°-179°; and a thickness of the support plate is 45mm-55mm.

[0011] Optionally, a front door and a rear door are respectively provided on the front and rear sides of the cabinet body; door locks are provided on the front and rear doors of the cabinet; and heat insulation cotton is provided on the lower end surface of the top cover, the inner side of the front door, the inner side of the rear door and the inner side surfaces of the left and right sides of the cabinet body.

[0012] Optionally, a plurality of heat dissipation holes are provided on the front door and the rear door of the cabinet; at least one louver is provided on the inner side of the front door and the rear door of the cabinet; the louver is connected to the heat dissipation holes; and filter cotton is provided on the inner side of the louver.

[0013] Optionally, the control module includes: a controller and an installation shell; the controller is installed in the installation shell; the controller is electrically connected to the energy storage module, the liquid cooling module and the dual-mode fire protection module respectively.

[0014] In summary, the present invention has the following beneficial effects: by adopting the heat dissipation mode of liquid cooling, the problem of poor heat dissipation performance in the existing air cooling mode, which leads to low system utilization efficiency, can be solved; at the same time, the design scheme of the dual-mode fire protection system can effectively improve the fire emergency response capability of the energy storage equipment and effectively reduce the fire safety hazards of the energy storage equipment; the top cover adopts the structural form of a middle slope + two side bosses, the middle slope can make the rainwater quickly divert to both sides, and the two side bosses can control the rainwater to the left and right sides of the top cover, avoiding the top rainwater from flowing to the front and rear sides of the energy storage cabinet, which can effectively reduce the rainwater flow of the front and rear doors of the cabinet, and reduce the moisture from invading the cabinet through the front and rear door panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an assembly diagram of the present invention;

[0016] Figure 2 It is a schematic diagram of the structure of the present invention when assembled;

[0017] Figure 3 It is a schematic diagram of the positional relationship between the rectifier and various components in the present invention;

[0018] Figure 4 It is a structural schematic diagram of the fire protection module in the present invention;

[0019] Figure 5 It is a schematic diagram of the structure of the top cover in the present invention;

[0020] Figure 6 yes Figure 5 sectional view of .

[0021] In the figure: 1. top cover; 101. support plate; 102. boss; 103. arc-shaped protrusion; 104. mounting hole; 105. lifting ring; 106. mounting groove; 107. reinforcing rib; 2. base; 3. cabinet; 4. chamber; 5. energy storage module; 501. rectifier; 502. battery pack; 503. access compartment; 504. power distribution unit; 505. main AC circuit breaker; 6. liquid cooling module; 601. circulating water tank; 602. cooling pipeline; 7. Dual-mode fire-fighting module; 701. Fire-fighting gas cylinder; 702. Three-way connector; 703. Water pipeline; 704. Fire-fighting pipeline; 705. Sprinkler; 706. Electric one-way valve; 707. Composite smoke detector; 708. Water pipe connector; 8. Control module; 801. Mounting shell; 802. Controller; 9. Mounting bracket; 10. Cabinet front door; 11. Cabinet rear door; 12. Insulation cotton; 13. Door lock; 14. Heat dissipation hole; 15. Shutters. DETAILED DESCRIPTION

[0022] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. Several embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0024] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "vertical", "horizontal", "left", "right", "above", "below" and similar expressions are for illustrative purposes only, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] The present invention provides a liquid-cooled energy storage device, such as Figure 1-6 As shown, it includes: a top cover 1, a base 2, and a cabinet 3; the top cover 1 is detachably arranged on the top of the cabinet 3; the base 2 is detachably installed at the bottom of the cabinet 3; the top cover 1 cooperates with the base 2 and the cabinet 3 to form a closed chamber 4; an energy storage module 5, a liquid cooling module 6 for cooling the energy storage module 5, a dual-mode fire protection module 7, and a control module 8 are installed in the chamber 4; the control module 8 is electrically connected to the energy storage module 5, the liquid cooling module 6 and the dual-mode fire protection module 7 respectively; by adopting the heat dissipation mode of liquid cooling, the problem of poor heat dissipation performance in the existing air cooling heat dissipation mode, which leads to low system utilization efficiency, can be solved; at the same time, the design scheme of the dual-mode fire protection system can effectively improve the fire emergency response capability of the energy storage equipment and effectively reduce the fire safety hazards of the energy storage equipment; and the detachable assembly mode of the top cover 1 and the base 2 can be conveniently used for maintenance and repair work.

[0027] Furthermore, the dual-mode fire fighting module 7 includes: a fire fighting gas cylinder 701, a three-way joint 702, a water delivery pipeline 703, a fire fighting pipeline 704, an output pipeline adapted to the energy storage module 5, and a plurality of nozzles 705; a water pipe joint 708 adapted to the delivery pipeline is provided on the base 2; the water pipe joint 708 is connected to the water delivery pipeline 703; the two input ends of the three-way joint 702 are respectively connected to the fire fighting gas cylinder 701 and the water delivery pipeline; the output end of the three-way joint 702 is connected to the The fire-fighting pipeline 704 is connected; the output end of the fire-fighting pipeline 704 is connected to the output pipeline; a plurality of the nozzles 705 are installed at the output end of the output pipeline, and their output ends are all facing the energy storage module 5; the output end of the fire-fighting gas cylinder 701 and the output end of the water supply pipeline 703 are both provided with an electric one-way valve 706; the electric one-way valve 706 is electrically connected to the control module 8; and it also includes at least one composite smoke detector 707; the composite smoke detector 707 is electrically connected to the control module 8.

[0028] In this embodiment, if Figure 2-4As shown, the water pipe connector 708 is a water pipe connector 708 for connecting an external high-pressure water pipe so as to deliver high-pressure fire-fighting water to the water delivery pipeline 703; during assembly, the input end of the fire-fighting pipeline 704 is connected and communicated with the fire-fighting gas cylinder 70111 and the water delivery pipeline 703 respectively through the three-way connector 702, and its output end is an output end composed of multiple output pipelines designed in parallel, and a plurality of nozzles 705 are installed on the output end of the fire-fighting pipeline 704, and the output ends of the plurality of nozzles 705 correspond to the battery packs 502 facing the energy storage module 5 respectively; at the same time, the output end of the fire-fighting gas cylinder 701 and the output end of the water delivery pipeline 703 are both provided with electric one-way valves 706. By respectively providing the electric one-way valves 706 on the output end of the water delivery pipeline 703 and the output end of the fire-fighting gas cylinder 701, it is possible to prevent the fire-fighting gas from flowing out of the energy storage cabinet through the water delivery pipe, and at the same time, it is possible to avoid the external water source from flowing through the fire-fighting pipeline 704 and the three-way connector 702 when the external water source is connected. When the composite smoke detector 707 in the device detects an increase in the concentration of combustible gases such as smoke or carbon monoxide, the control module 8 issues an instruction to preferentially open the electric one-way valve 706 on the output end of the fire cylinder 701, and spray the fire gas from the fire pipeline 704 to each battery pack 502 on the energy storage module 5, squeeze out the abnormal gas and dilute the concentration of combustible gas in the storage cabinet. When the fire accident cannot be controlled after the fire cylinder 701 gas spray is completed, the control module 8 controls the electric one-way valve 706 on the output end of the water pipeline 703 to open, and directly inject water into the cabinet through an external water source, and flow into the battery pack 502 through the fire pipeline 704 for fire fighting. At the same time, the nozzle 705 at the output end of the fire pipeline 704 will also continue to spray to cool down and extinguish the fire inside the energy storage cabinet; the overall operation can realize the linkage of water fire fighting and gas fire fighting, and effectively improve the fire safety performance of the energy storage cabinet.

[0029] Furthermore, the energy storage module 5 includes: a rectifier 501, a plurality of battery packs 502, an access compartment 503, and a distribution component 504; a mounting frame 9 is provided in the cabinet 3; the access compartment 503 is installed on one side of the mounting frame 9; a main AC circuit breaker 505 is provided in the access compartment 503; a plurality of battery packs 502 are installed on the mounting frame 9 in sequence from top to bottom; the rectifier 501 is installed on the mounting frame 9 and is located below the lowest battery pack 502; the distribution component 504 is installed on the rack; the battery can be electrically connected to the distribution component 504, the rectifier 501, the main AC circuit breaker 505 and the control module 8 respectively; the output end of the nozzle 705 faces the battery pack 502; Figure 1-3As shown, by setting a distribution component 504, it is used to integrate the distribution system and the battery management system; by setting a main AC circuit breaker 505, it is used to connect the mains power and the load; the strong current of the mains power and the weak current of the secondary control are separated, which can effectively avoid the mutual interference between the strong and weak currents.

[0030] Furthermore, the liquid cooling module 6 includes: a circulating water tank 601, a water pump, and a cooling pipeline 602; the circulating water tank 601 is connected to the input end of the cooling pipeline 602 through the water pump; the cooling pipeline 602 is wound on the mounting frame 9, and the output end of the cooling pipeline 602 is connected to the circulating water tank 601; the water pump is electrically connected to the control module 8.

[0031] In this embodiment, if Figure 1-3 As shown, the cooling pipeline 602 is wound around the mounting frame 9 on which the energy storage module 5 is mounted, and is in close contact with the battery pack 502 in the energy storage module 5, so as to take away the heat generated by the battery pack 502 during operation, and cool and dissipate the heat of the battery pack 502.

[0032] Furthermore, the top cover 1 includes: a support plate 101; bosses 102 are provided on both the front and rear sides of the support plate 101; an arc-shaped protrusion 103 protruding upward is provided in the gap between the two bosses 102; two mounting grooves 106 are provided on the left and right sides of the support plate 101; a mounting hole 104 for a hanging ring 105 to pass through is opened on the mounting groove 106; the support plate 101 is connected to the cabinet body 3 through the hanging ring 105; the arc-shaped protrusion 103 is provided with at least one reinforcing rib 107; the two ends of the reinforcing rib 107 are respectively perpendicular to the two bosses 102; the angle P between the arc edge tangents of the arc surface on both sides of the arc-shaped protrusion 103 is 173°-179°; the top of the arc-shaped protrusion 103 is flush with the boss 102; the thickness of the support plate 101 is 45mm-55mm.

[0033] In this embodiment, if Figure 1-3 and Figure 5-6As shown, the support plate 101 is a square cover plate, and the support plate 101 cooperates with the pull ring through the mounting holes 104 on the left and right sides thereof to connect and install the support plate 101 on the cabinet body 3, so that the user can remove the top cover 1; the upper end surface of the top cover 1 adopts a structure of a middle bevel + two side bosses 102, and the middle bevel allows rainwater to quickly flow to the left and right sides of the top cover 1, and the bosses 102 on both sides can control the rainwater to be directed to the left and right sides of the top cover 1, so as to prevent the rainwater on the top cover 1 from flowing to the front and rear sides of the energy storage cabinet, reduce the rainwater flow of the front and rear doors of the cabinet body 3, and reduce the moisture from invading the cabinet body 3 through the front and rear door panels; affect the normal use of the energy storage device and reduce the service life of the energy storage device; in this embodiment, the angle P between the arc edge tangents of the arc surface on both sides of the arc-shaped protrusion 103 is 173°-17 9°, the thickness of the support plate 101 is 45mm-55mm; in the specific assembly process, the user can adjust the angle P between the arc edge tangents of the arc surface on both sides of the arc-shaped protrusion 103, and then cooperate with the support plate 101 to adjust the thickness of the top cover 1 structure, while ensuring the drainage effect, the structural strength of the top cover 1 can be further strengthened; in this embodiment, the top of the arc-shaped protrusion 103 is set to be flush with the boss 102 to reduce the overflow of water from the front and rear sides of the top cover 1, so as to avoid the situation where the rainwater flow is too large, because the boss 102 is higher than the arc-shaped protrusion 103, causing the rainwater to overflow directly from the front and rear sides of the top cover 1; in other embodiments, the top of the arc-shaped protrusion 103 can be set to be lower than the boss 102.

[0034] Furthermore, the cabinet body 3 is provided with a front door 10 and a rear door 11 on the front and rear sides respectively; the front door 10 and the rear door 11 are provided with door locks 13; the lower end surface of the top cover 1, the inner side of the front door 10, the inner side of the rear door 11 and the inner side surfaces of the left and right sides of the cabinet body 3 are provided with heat insulation cotton 12; Figure 1-2 As shown, a front door 10 and a rear door 11 are provided to facilitate maintenance and repair of the energy storage equipment; heat insulation cotton 12 is provided on a total of five surfaces, including the inner sides of the front and rear doors, the inner surfaces of the left and right sides of the energy storage cabinet, and the lower end surface of the top cover 1, which can effectively prevent the influence of heat outside the cabinet on the inside of the cabinet, maintain the relative temperature balance inside the cabinet, and avoid the generation of condensed water.

[0035] Furthermore, a plurality of heat dissipation holes 14 are provided on the front door 10 and the rear door 11; at least one louver 15 is provided on the inner side of the front door 10 and the rear door 11; the louver 15 is connected to the heat dissipation holes 14; and filter cotton is provided on the inner side of the louver 15.

[0036] In this embodiment, if Figure 1-2As shown, a plurality of heat dissipation holes 14 can be used to further improve the heat dissipation capacity of the energy storage device to ensure the normal operation of the device; by setting filter cotton, the dustproof effect of the cabinet 3 can be effectively improved, and the dustproof and waterproof performance of the cabinet 3 can be improved.

[0037] Optionally, in the present embodiment, waterproof adhesive strips that fit the cabinet body 3 are provided on both the cabinet front door 10 and the cabinet rear door 11 for sealing, so as to ensure the waterproof and dustproof effect of the cabinet body 3 .

[0038] Furthermore, the control module 8 includes: a controller 802 and an installation shell 801; the controller is installed in the installation shell 801; the controller 802 is electrically connected to the energy storage module 5, the liquid cooling module 6 and the dual-mode fire protection module 7 respectively; specifically, as Figure 2 and 4 As shown, the controller 802 may be a single chip microcomputer, MCU, PLC or the like with electrical components that work in an orderly manner. In this embodiment, an MCU is selected.

[0039] A liquid-cooled energy storage device of the present invention can solve the problem of poor heat dissipation performance and low system efficiency in the existing air-cooled heat dissipation mode by adopting a liquid-cooled heat dissipation method; at the same time, a dual-mode fire protection system design can effectively improve the fire emergency response capability of the energy storage device and effectively reduce the fire safety hazards of the energy storage device; the top cover 1 adopts a structure of a middle slope + two side bosses 102, the middle slope can make rainwater quickly divert to both sides, and the two side bosses 102 can control the rainwater to be directed to the left and right sides of the top cover 1, avoiding the top rainwater from flowing to the front and rear sides of the energy storage cabinet, which can effectively reduce the rainwater flow of the front and rear doors of the cabinet body 3 and reduce the moisture from invading the cabinet through the front and rear door panels.

[0040] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A liquid-cooled energy storage device, comprising: A top cover, a base, and a cabinet; characterized in that the top cover is detachably mounted on the top of the cabinet; the base is detachably mounted on the bottom of the cabinet; the top cover cooperates with the base and the cabinet to form a closed chamber; an energy storage module, a liquid cooling module for cooling the energy storage module, a dual-mode fire protection module, and a control module are installed in the chamber; the control module is electrically connected to the energy storage module, the liquid cooling module, and the dual-mode fire protection module, respectively.

2. A liquid-cooled energy storage device according to claim 1, characterized in that: The dual-mode fire-fighting module includes: a fire-fighting gas cylinder, a three-way joint, a water supply pipeline, a fire-fighting pipeline, an output pipeline compatible with the energy storage module, and a plurality of nozzles; a water pipe joint compatible with the delivery pipeline is provided on the base; the water pipe joint is connected with the water supply pipeline; the two input ends of the three-way joint are respectively connected with the fire-fighting gas cylinder and the water supply pipeline; the output end of the three-way joint is connected with the fire-fighting pipeline; the output end of the fire-fighting pipeline is connected with the output pipeline; a plurality of nozzles are installed at the output end of the output pipeline, and their output ends are all facing the energy storage module; electric one-way valves are provided on the output end of the fire-fighting gas cylinder and the output end of the water supply pipeline; the electric one-way valve is electrically connected to the control module.

3. A liquid-cooled energy storage device according to claim 2, characterized in that: It also includes at least one composite smoke detector; the composite smoke detector is electrically connected to the control module.

4. A liquid-cooled energy storage device according to claim 2, characterized in that: The energy storage module includes: a rectifier, several battery packs, an access compartment, and a distribution component; a mounting frame is arranged in the cabinet; a main AC circuit breaker is arranged in the access compartment; a main AC circuit breaker is arranged in the access compartment; several battery packs are installed on the mounting frame in sequence from top to bottom; the rectifier is installed on the mounting frame and is located below the lowest battery pack; the distribution component is installed on the frame; the battery can be electrically connected to the distribution component, rectifier, main AC circuit breaker and control module respectively; the output end of the nozzle faces the battery pack.

5. A liquid-cooled energy storage device according to claim 4, characterized in that: The liquid cooling module includes: a circulating water tank, a water pump, and a cooling pipeline; the circulating water tank is connected to the input end of the cooling pipeline through the water pump; the cooling pipeline is wound on the mounting frame, and the output end of the cooling pipeline is connected to the circulating water tank; the water pump is electrically connected to the control module.

6. The liquid-cooled energy storage device according to claim 1, characterized in that: The top cover includes: a support plate; bosses are provided on the front and rear sides of the support plate; an arc-shaped protrusion protruding upward is provided in the gap between the two bosses; two installation grooves are provided on the left and right sides of the support plate; installation holes for hanging rings to pass through are opened on the installation grooves; the support plate is connected to the cabinet body through the hanging ring; at least one reinforcing rib is provided on the arc-shaped protrusion; the two ends of the reinforcing rib are respectively perpendicular to the two bosses; the top of the arc-shaped protrusion is flush with the boss.

7. A liquid-cooled energy storage device according to claim 6, characterized in that: The angle P between the arc edge tangents of the arc surfaces on both sides of the arc-shaped protrusion is 173°-179°; the thickness of the support plate is 45mm-55mm.

8. The liquid-cooled energy storage device according to claim 1, characterized in that: The front and rear sides of the cabinet body are respectively provided with a front door and a rear door; the front and rear doors are both provided with door locks; the lower end surface of the top cover, the inner side of the front door, the inner side of the rear door and the inner side surfaces of the left and right sides of the cabinet body are all provided with heat insulation cotton.

9. A liquid-cooled energy storage device according to claim 8, characterized in that; The front door and the rear door of the cabinet are both provided with a plurality of heat dissipation holes; the inner sides of the front door and the rear door of the cabinet are both provided with at least one louver; the louver is connected with the heat dissipation holes; and filter cotton is provided on the inner sides of the louver.

10. The liquid-cooled energy storage device according to claim 1, characterized in that: The control module includes: a controller and an installation shell; the controller is installed in the installation shell; the controller is electrically connected to the energy storage module, the liquid cooling module and the dual-mode fire protection module respectively.

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