A lithium battery energy storage device with temperature control function

Abstract

The present application relates to lithium battery storage technical field, specifically to a kind of lithium battery energy storage device with temperature control function, comprising: main body, upper portion is provided with an open type opening and inside structure has the space for placing lithium battery energy storage;Temperature control component, it is installed in the inside of main body and part structure is contacted with lithium battery for cooling regulation control to lithium battery;Temperature control component structure is contacted with lithium battery and is set in the cooling pipe of lithium battery surface surrounding, multiple mounting racks are connected and fixed with the inside of main body and support cooling pipe, the present application is set by temperature control component, lithium battery is operated, water pump can be started, so that water pump can extract cooling liquid in storage tank by inlet pipe and flow into cooling pipe, cooling liquid in cooling pipe is flowed back into storage tank by its water outlet, so that the circulation of cooling liquid is used to heat dissipation treatment to lithium battery, avoid temperature too high, so as to reach temperature control effect.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery storage, and in particular to a lithium battery energy storage device with a temperature control function. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and a non-aqueous electrolyte solution. During the storage process of lithium batteries, the existing method is to place the lithium batteries in ordinary insulating boxes to avoid electric shock. Lithium battery energy storage devices are a device used to store electrical energy and release electrical energy when needed. They are usually composed of lithium-ion batteries. After the lithium battery is produced, it is necessary to use storage boxes to store lithium battery energy in batches to avoid long-term exposure of lithium batteries to the air.

[0003] To this end, someone has designed a storage device for lithium batteries (publication number CN218385493U), which includes a storage box, a top cover and an inner box. The top cover is movably set on the storage box, the inner box is set in the storage box, and a storage slot is provided in the inner box. The storage device preferably includes: guide rods, which are several in number and symmetrically arranged in the storage box; a sliding seat, which is movably set on the guide rods and connected to the top cover, and the sliding seat is connected to the storage box through an elastic member; a sealing system, which is set in the storage box and connected between the top cover and the storage box. The entire device has a high degree of automation and can replace the staff to seal the container for storing lithium batteries. There is no need for manual operation by the staff, which effectively prevents the lithium batteries from being corroded by long-term contact with the outside air and has a high protection factor.

[0004] However, although it can store and place lithium battery energy, lithium batteries tend to generate a certain amount of heat during long-term discharge operation, and this heat will tend to remain in the storage box and cannot be effectively dissipated, causing the internal temperature to continue to rise. When the temperature is high, its performance and use effect are poor, thereby affecting the operation of the lithium battery. Therefore, the inventors designed a method that can effectively control the heat generated internally during the operation of the lithium battery energy storage device, which is a common goal pursued by those skilled in the art.

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the present invention provides a lithium battery energy storage device with a temperature control function, which can effectively dissipate the heat retained in the storage space of the lithium battery when it is working, solving the problem that the temperature of the original lithium battery energy storage device is difficult to effectively regulate.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned purpose of effectively moving the food material in the material port, the present invention provides the following technical solutions:

[0009] A lithium battery energy storage device with temperature control function, comprising:

[0010] The main body has an open opening at the top and a space inside for accommodating lithium battery energy storage;

[0011] A temperature control component is installed inside the main body and has a portion of its structure in contact with the lithium battery for controlling the temperature of the lithium battery;

[0012] The temperature control component is constructed with a cooling pipe that is in contact with the lithium battery and is arranged around the surface of the lithium battery, a plurality of mounting brackets that are connected and fixed to the inside of the main body and support the cooling pipe, and a temperature sensor installed inside the main body for monitoring the ambient temperature of the placement space.

[0013] Optionally, the temperature control component includes a liquid storage tank, a water pump, a cooling pipe, a water inlet pipe and a heat sink. The liquid storage tank is installed in a storage space constructed inside the main body and stores coolant inside. The water pump is installed on the upper part of the liquid storage tank. One end of the cooling pipe is connected to the water outlet end of the water pump. The water outlet end of the water pump is connected to the water inlet pipe extending to the interior of the liquid storage tank. The heat sink is installed on the outside of the liquid storage tank through thermal grease and is located outside the main body.

[0014] Optionally, the other end of the cooling pipe penetrates into the interior of the liquid storage tank and its horizontal height is higher than the horizontal height of the water inlet end of the water inlet pipe.

[0015] Optionally, the water inlet and outlet of the cooling pipe both pass through the same mounting bracket on one side of the interior of the main body, the cooling pipe surrounds the surface of multiple mounting brackets, and the cooling pipe is a flexible hose.

[0016] Optionally, the interior of the main body is provided with multiple slots configured in the lower part, each of which is connected to a corresponding lithium battery, and the lithium battery is located between two adjacent mounting frames. A fixing for wiring arrangement is installed inside the main body, and the liquid storage tank is located between the fixing and the main body.

[0017] Optionally, a sealing cover is installed on the upper part of the main body, which is tightly fitted with the main body and has a height less than that of the main body. A limiting component for pressing and fixing the lithium battery and a transmission component for driving the limiting component to move are installed inside the sealing cover.

[0018] Optionally, the limiting assembly includes an elastic part, a movable part and a limiting part, the elastic part is vertically installed above the inside of the sealing cover, the movable part is movably installed at the lower end of the elastic part and is located on the inner side of the sealing cover, and the limiting parts are installed at the lower part of the movable part corresponding to the lithium battery and partially extend to the outside of the sealing cover.

[0019] Optionally, the transmission assembly includes a base, a first rotating shaft, a first rotating member, a handle, a second rotating shaft, a second rotating member, a first tooth, a second tooth and a protrusion, the base is protrudingly mounted on the upper part of the sealing cover, both ends of the first rotating shaft pass through the outside of the base and are rotatably connected to the inside of the base, the first rotating member is coaxially mounted on the surface of the first rotating shaft and is located inside the base, the first teeth are all arranged on the outer circumference of the first rotating member, the second rotating shaft is rotatably connected to the inside of the sealing cover, the second rotating member is coaxially mounted on the surface of the second rotating shaft and is located directly below the first rotating member, and the second tooth and the protrusion are both mounted on the outer circumference of the second rotating member.

[0020] Optionally, the handle is mounted on both ends of the first rotating shaft, the second gear is engaged with the first gear, and the protrusion is in contact with the movable part when the handle is in a horizontal state.

[0021] Optionally, the protrusion is arranged on the same side as the handle, and the height of the protrusion is greater than the height of the second tooth.

[0022] (3) Beneficial effects

[0023] Compared with the prior art, the present invention provides a lithium battery energy storage device with temperature control function, which has the following beneficial effects:

[0024] 1. The present invention provides a temperature control component. When the lithium battery is in operation, the water pump can be started to draw coolant from the liquid storage tank through the water inlet pipe and flow into the cooling pipe. The coolant in the cooling pipe then flows back into the liquid storage tank from its water outlet. The circulation of the coolant dissipates heat from the lithium battery, preventing the temperature from being too high, thereby achieving a temperature control effect. At this time, when the coolant circulates in the cooling pipe, the presence of the coolant can drive the cooling pipe to expand, so that the cooling pipe can better contact with the lithium battery. After the cooling pipe expands, it can further clamp and fix the lithium batteries. Furthermore, the cooling pipe through the flexible hose can also provide a certain buffer between the lithium batteries, reducing the vibration or shaking of the lithium batteries, thereby improving their stability.

[0025] 2. The present invention provides a limit assembly, so that when the lithium battery is stored, the sealing cover and the main body can be sealed by a snap or lock. When the sealing cover is buckled, the limit member inside the sealing cover corresponds to the lithium battery, thereby being able to press the lithium battery to a certain extent. During the closing process, the limit member can compensate for a certain height of the lithium battery through the movable member and the elastic member, avoiding the difficulty of closing due to mismatch and the lithium battery being subjected to large shaking when being carried and moved. At the same time, the lithium battery can be easily installed and removed, avoiding the need for frequent bolt tightening and disassembly.

[0026] 3. The present invention provides a transmission assembly. When the storage device is carried by the handle, the upward rotation of the handle causes the first rotating shaft to drive the first rotating member and the first tooth to rotate. The first tooth drives the second tooth meshing therewith and the second rotating member to rotate under the action of the second rotating shaft, thereby driving the protrusion on the surface of the second rotating member to move. During the rotation of the protrusion, the movable member and the limit member can be pushed downward to press and fix the lithium battery inside, thereby preventing the lithium battery pack from being shaken significantly when being carried by the handle and improving its stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the first overall structure of the device of the present invention;

[0028] Figure 2 Schematic diagram of the second overall structure of the device of the present invention;

[0029] Figure 3 It is a schematic diagram of the overall front cross-sectional structure of the device of the present invention;

[0030] Figure 4 It is a schematic diagram of the overall side sectional structure of the device of the present invention;

[0031] Figure 5 This is a schematic diagram of the cooling pipe connection structure of the device of the present invention;

[0032] Figure 6 The device of the present invention Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0033] In the figure: 1. Main body; 2. Sealing cover; 3. Heat sink; 4. Base; 5. Handle; 6. First rotating shaft; 7. Fixing part; 8. Lithium battery; 9. Liquid storage tank; 10. Elastic part; 11. Second rotating shaft; 12. Movable part; 13. Limiting part; 14. Slot; 15. Water pump; 16. Cooling pipe; 17. Water inlet pipe; 18. Mounting bracket; 19. First rotating part; 20. Bump; 21. First tooth; 22. Second tooth; 23. Temperature sensor; 24. Second rotating part. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example: See Figures 1 to 6 , an embodiment of the present invention provides a technical solution: a lithium battery energy storage device with a temperature control function, comprising: a main body 1, an open opening is provided on the upper part of which and a space for placing a lithium battery 8 for energy storage is constructed inside; a temperature control component, which is installed inside the main body 1 and has a partial structure in contact with the lithium battery 8 for cooling and regulating the lithium battery 8; the temperature control component is constructed with a cooling pipe 16 that contacts the lithium battery 8 and is arranged around the surface of the lithium battery 8, a plurality of mounting brackets 18 connected and fixed to the inside of the main body 1 and supporting the cooling pipe 16, and a temperature sensor 23 installed inside the main body 1 for monitoring the ambient temperature of the placement space.

[0036] When implementing the above scheme, the lithium battery pack can be placed in the main body 1, and there is but is not limited to an inverter constructed in the main body 1 for converting the DC power stored in the battery into AC power, and a control system for monitoring the energy status of the lithium battery pack to ensure the normal operation of the lithium battery. As a further implementation method, by installing a temperature control component inside the main body 1, the temperature control component can effectively absorb and dissipate the heat retained in the enclosed space of the main body 1, thereby regulating the internal temperature to prevent the temperature from staying inside and affecting the use and service life of the lithium battery 8. Furthermore, the installation of the temperature sensor 23 can monitor the temperature changes inside the battery pack in real time, which helps to promptly detect overheating or overcooling of the battery and take corresponding measures to reasonably control the operating temperature range of the battery, thereby improving the overall efficiency of the energy storage system, reducing energy loss and improving the stability and reliability of the system.

[0037] like Figure 1-3As shown, in this embodiment, the temperature control component includes a liquid storage tank 9, a water pump 15, a cooling pipe 16, a water inlet pipe 17 and a heat sink 3. The liquid storage tank 9 is installed in a storage space constructed inside the main body 1 and stores coolant inside. The water pump 15 is installed on the upper part of the liquid storage tank 9. One end of the cooling pipe 16 is connected to the water outlet end of the water pump 15. The water outlet end of the water pump 15 is connected to the water inlet pipe 17 extending to the inside of the liquid storage tank 9. The heat sink 3 is installed on the outside of the liquid storage tank 9 through thermal grease and is located outside the main body 1. Through this embodiment, the water pump 15 can extract the coolant in the liquid storage tank 9 through the water inlet pipe 17 and flow it into the cooling pipe 16 when it is working. The coolant in the cooling pipe 16 then flows back to the liquid storage tank 9 from its water outlet end. The circulating flow of the coolant can dissipate heat for the lithium battery 8 to avoid excessive temperature, thereby achieving a temperature control effect. At the same time, the heat sink 3 can effectively dissipate the heat adsorbed by the liquid storage tank 9 to the outside, to avoid heat remaining in the liquid storage tank 9 and affecting the heat dissipation effect on the lithium battery 8. Specifically, the water pump 15 can be replaced with a liquid pump that can extract cooling, so that it can drive the coolant in the liquid storage tank 9 and reverse circulation flow to achieve a cooling effect. Furthermore, an opening for replenishing the coolant in the liquid storage tank 9 and a corresponding sealing plug can be constructed on the surface of the liquid storage tank 9, so as to facilitate the replenishment or replacement of the coolant after long-term use to avoid affecting its heat dissipation effect.

[0038] like Figure 3 As shown, in this embodiment, in order to enable the coolant in the liquid storage tank 9 to circulate better, the other end of the cooling pipe 16 passes through the interior of the liquid storage tank 9 and its horizontal height is higher than the horizontal height of the water inlet end of the water inlet pipe 17. Specifically, the water inlet end of the water inlet pipe 17 needs to be much lower than the water level of the coolant in the liquid storage tank 9 to avoid difficulty in extracting the coolant in the liquid storage tank 9. At the same time, the water outlet end of the cooling pipe 16 needs to be higher than the horizontal height of the coolant on the basis of being higher than the horizontal height of the water inlet end of the water inlet pipe 17 to avoid the coolant in the liquid storage tank 9 from flowing back into the cooling pipe 16 when the water pump stops working to avoid residue.

[0039] like Figure 3 and Figure 5As shown, in this embodiment, in order to better cool and dissipate heat for the lithium battery 8, the water inlet and outlet ends of the cooling pipe 16 both pass through the same mounting bracket 18 on one side of the interior of the main body 1, and the cooling pipe 16 surrounds the surface of multiple mounting brackets 18. The cooling pipe 16 adopts a flexible hose. Through this embodiment, the mounting bracket 18 can effectively support and install the cooling pipe 16 to prevent it from loosening. One end of the mounting bracket 18 is fixed to the main body 1, and the other end is at a certain distance from the main body 1, so that the cooling pipe 16 can be better wrapped around the surface of the mounting bracket 18. Furthermore, both ends of the cooling pipe 16 pass through one of the mounting brackets 18, so that the cooling pipe 16 can better surround the surface of the lithium battery 8.

[0040] like Figure 2-5 As shown, in this embodiment, in order to better place the lithium battery 8, it is necessary to construct a component to support and isolate it in the main body 1. The interior of the main body 1 has multiple card slots 14 constructed at the lower part, each of which is correspondingly plugged with a lithium battery 8, and the lithium battery 8 is located between two adjacent mounting frames 18. The interior of the main body 1 is installed with a fixing member 7 for wiring layout, and the liquid storage tank 9 is located between the fixing member 7 and the main body 1. Through this embodiment, when the lithium battery 8 is placed, the lithium battery 8 can be directly and effectively inserted into the card slot 14, and the matching clearance of the card slot 14 can be consistent with the lithium battery 8. Adaptation allows for support and fixation, and also facilitates the disassembly and assembly of the lithium battery 8, avoiding the cumbersome disassembly and assembly caused by screw fixation under normal circumstances. Furthermore, the distance between two adjacent mounting frames 18 is greater than the width of the lithium battery 8, so that the mounting frame 18 can separate the lithium batteries to a certain extent to avoid mutual influence. An opening of a certain area is provided on the upper part of the fixing member 7, so that the circuits can be well laid out when the internal part of the device is connected, thereby avoiding circuit confusion. The liquid storage tank 9 is separated from the lithium battery 8 by the fixing member 7 to avoid affecting the lithium battery 8 when operating the liquid storage tank 9.

[0041] like Figure 1 、 Figure 3 and Figure 4As shown, in this embodiment, in order to avoid the main body 1 being open and difficult to protect the interior, a sealing cover 2 is installed on the upper part of the main body 1, which is tightly fitted with the main body 1 and has a height less than the height of the main body 1. A limiting component for pressing and fixing the lithium battery 8 and a transmission component for driving the limiting component to move are installed inside the sealing cover 2. Through this embodiment, the limiting component is a component that can move synchronously with the sealing cover 2, so that the sealing cover 2 can also limit and fix the lithium battery 8 inside the main body 1 during the covering process, so as to achieve further effects and make the sealing cover 2 no longer a simple covering. On the basis of the limiting component, the transmission component can gradually transmit the action to the limiting component to cooperate with the limiting component to move together. Specifically, the sealing cover 2 and the main body 1 can be sealed by means of existing snaps or locks to ensure that the main body 1 and the sealing cover 2 can be fixed and covered for protection.

[0042] like Figure 3-4 As shown, in this embodiment, the limiting assembly includes an elastic member 10, a movable member 12 and a limiting member 13. The elastic member 10 is vertically installed above the inside of the sealing cover 2, and the movable member 12 is movably installed at the lower end of the elastic member 10 and is located on the inner side of the sealing cover 2. The limiting members 13 are all installed at the lower part of the movable member 12 corresponding to the lithium battery 8 and partially extend to the outside of the sealing cover 2. Through this embodiment, when the lithium battery is stored, since the sealing cover 2 and the main body 1 can be sealed by a buckle or a lock, when the sealing cover 2 is buckled, the limiting member 13 inside corresponds to the lithium battery 8, so that the lithium battery 8 can be locked. The limiter 13 can be pressed by the movable part 12 and the elastic part 10 during the closing process to compensate for the height thereof, so as to avoid difficulty in closing due to incompatibility, and to prevent the lithium battery 8 from being shaken greatly when being carried and moved. At the same time, the disassembly and assembly of the lithium battery 8 is also more convenient, and the need for frequent bolt tightening and disassembly is avoided. Specifically, the elastic part 10 can be a spring or other component with a certain elastic potential energy, so that the limiter 13 and the movable part 12 have a certain movable space, and the need for tailor-made distance between the limiter 13 and the lithium battery 8 is avoided, thereby improving its applicability, so that the lithium batteries 8 of different heights can also be pressed and limited.

[0043] like Figure 3 、 Figure 4 and Figure 6As shown, in this embodiment, the transmission assembly includes a base 4, a first rotating shaft 6, a first rotating member 19, a handle 5, a second rotating shaft 11, a second rotating member 24, a first tooth 21, a second tooth 22 and a protrusion 20. The base 4 is protrudingly arranged and installed on the upper part of the sealing cover 2. Both ends of the first rotating shaft 6 pass through the outside of the base 4 and are rotatably connected to the inside of the base 4. The first rotating member 19 is coaxially installed with the first rotating shaft 6 on the surface of the first rotating shaft 6 and is located inside the base 4. The first teeth 21 are all arranged on the outer peripheral surface of the first rotating member 19. The second rotating shaft 11 is rotatably connected to the inside of the sealing cover 2. The second rotating member 24 is coaxially installed with the second rotating shaft 11 on the surface of the second rotating shaft 11 and is located directly below the first rotating member 19. On the other hand, the second gearing 22 and the protrusion 20 are both installed on the outer peripheral surface of the second rotating member 24. Through this embodiment, when the storage device is carried by the handle 5, due to the upward rotation of the handle 5, the first rotating shaft 6 can drive the first rotating member 19 and the first gearing 21 to rotate, and the first gearing 21 can drive the second gearing 22 meshing therewith and the second rotating member 24 to rotate under the action of the second rotating shaft 11, thereby driving the protrusion 20 on the surface of the second rotating member 24 to move. During the rotation of the protrusion 20, the movable member 12 and the limit member 13 can be pushed downward to press and fix the lithium battery inside thereof, thereby avoiding large shaking of the lithium battery pack when it is carried by the handle 5, thereby improving its stability.

[0044] like Figure 3 、 Figure 4 and Figure 6 As shown, in this embodiment, in order to facilitate the carrying and movement of the device, the handle 5 is installed at both ends of the first rotating shaft 6, the second tooth 22 is engaged with the first tooth 21, and when the handle 5 is in a horizontal state, the protrusion 20 is in contact with the movable part 12. Through this embodiment, the handle 5 can be rotated under the action of the first rotating shaft 6, so that the handle 5 can be unfolded or lowered. When unfolded, it is convenient for people to pick up, and when lowered, the space it occupies can be reduced. Furthermore, a plurality of first teeth 21 and second teeth 22 are provided, so that the handle 5 can drive the protrusion 20 to move to a large extent during the rotation process, so that the protrusion 20 pushes the movable part 12 to move.

[0045] like Figure 3 As shown, in this embodiment, the protrusion 20 is arranged on the same side as the handle 5, and the height of the protrusion 20 is greater than the height of the second tooth 22. Through this embodiment, when the handle 5 is flipped upward to open, the protrusion 20 can rotate synchronously therewith. Since the first tooth 21 and the second tooth 22 rotate in opposite directions, the rotation directions of the protrusion 20 and the handle 5 are also opposite, so that the protrusion 20 can push the movable part 12 to move. In this case, the protrusion 20 needs to be in the same direction as the handle 5.

[0046] Working principle: First, when storing the lithium battery, the sealing cover 2 and the main body 1 can be sealed by snapping or locking, and when the sealing cover 2 is buckled, the inner limiter 13 corresponds to the lithium battery 8, so that the lithium battery 8 can be pressed to a certain extent. During the closing process, the limiter 13 can make a certain height compensation through the movable part 12 and the elastic part 10 to avoid incompatibility and difficulty in closing, and avoid the lithium battery 8 from shaking greatly when being carried and moved. At the same time, the disassembly and assembly of the lithium battery 8 is also more convenient, avoiding the need for frequent bolt tightening and disassembly. Secondly, when carrying the storage device by the handle 5, due to the upward rotation of the handle 5, the first rotating shaft 6 can drive the first rotating part 19 and the first tooth 21 to rotate, and the first tooth 21 can drive the second tooth 22 meshing with it and the second rotating part 24 to rotate under the action of the second rotating shaft 11, thereby driving the protrusion 20 on the surface of the second rotating part 24 to move. During the rotation of the protrusion 20, The movable part 12 and the limiting part 13 are pushed downward to press and fix the lithium battery inside, thereby preventing the lithium battery pack from being shaken when being carried by the handle 5, thereby improving its stability. Finally, when the lithium battery 8 is in operation, the water pump 15 can be started so that the water pump 15 can extract the coolant in the liquid storage tank 9 through the water inlet pipe 17 and flow into the cooling pipe 16. The coolant in the cooling pipe 16 then flows back into the liquid storage tank 9 from its water outlet end, thereby dissipating heat for the lithium battery 8 through the circulation of the coolant to prevent the temperature from being too high, thereby achieving a temperature control effect. At this time, when the coolant circulates in the cooling pipe 16, the presence of the coolant can drive the cooling pipe 16 to expand, so that the cooling pipe 16 can better contact with the lithium battery. After the cooling pipe 16 expands, it can also further clamp and fix the lithium batteries 8. Moreover, the cooling pipe 16 through the flexible hose can also provide a certain buffer between the lithium batteries 8, reducing the vibration or shaking of the lithium battery 8, thereby improving its stability.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery energy storage device with temperature control function, characterized in that: include: The main body (1) is provided with an open opening at the top and has a space inside for accommodating a lithium battery (8) for energy storage; A temperature control component is installed inside the main body (1) and has a portion of its structure in contact with the lithium battery (8) for controlling the temperature of the lithium battery (8); The temperature control assembly is constructed with a cooling pipe (16) that contacts the lithium battery (8) and surrounds the surface of the lithium battery (8), a plurality of mounting brackets (18) that are connected and fixed to the inside of the main body (1) and support the cooling pipe (16), and a temperature sensor (23) installed inside the main body (1) for monitoring the ambient temperature of the placement space; The temperature control component comprises a liquid storage tank (9), a water pump (15), a cooling pipe (16), a water inlet pipe (17) and a heat sink (3); the liquid storage tank (9) is installed in a storage space provided inside the main body (1) and stores coolant therein; the water pump (15) is installed on the upper part of the liquid storage tank (9); one end of the cooling pipe (16) is connected to the water outlet end of the water pump (15); the water inlet end of the water pump (15) is connected to the water inlet pipe (17) extending into the liquid storage tank (9); the heat sink (3) is installed on the outside of the liquid storage tank (9) through thermal grease and is located outside the main body (1); The water inlet and outlet ends of the cooling pipe (16) both pass through the same mounting frame (18) on one side of the interior of the main body (1), the cooling pipe (16) surrounds the surfaces of a plurality of mounting frames (18), and the cooling pipe (16) is a flexible hose; The interior of the main body (1) is connected to a plurality of corresponding slots (14) in the lower structure, and the lithium battery (8) is located between two adjacent mounting frames (18). A fixing member (7) for wiring arrangement is installed inside the main body (1), and the liquid storage tank (9) is located between the fixing member (7) and the main body (1); A sealing cover (2) is mounted on the upper portion of the main body (1), which is tightly fitted with the main body (1) and has a height less than that of the main body (1); a limiting assembly for pressing and fixing the lithium battery (8) and a transmission assembly for driving the limiting assembly to move are mounted inside the sealing cover (2); The transmission assembly comprises a base (4), a first rotating shaft (6), a first rotating member (19), a handle (5), a second rotating shaft (11), a second rotating member (24), a first tooth (21), a second tooth (22) and a protrusion (20); the base (4) is protrudingly mounted on the upper portion of the sealing cover (2); both ends of the first rotating shaft (6) pass through the outside of the base (4) and are rotatably connected to the inside of the base (4); the first rotating member (19) and the first rotating shaft (6) are coaxial. The first gear (21) is mounted on the surface of the first rotating shaft (6) and is located inside the base (4); the first gear (21) is arranged on the outer peripheral surface of the first rotating member (19); the second rotating shaft (11) is rotatably connected to the inside of the sealing cover (2); the second rotating member (24) is coaxially mounted on the surface of the second rotating shaft (11) and is located directly below the first rotating member (19); the second gear (22) and the protrusion (20) are mounted on the outer peripheral surface of the second rotating member (24); The handle (5) is mounted on both ends of the first rotating shaft (6), the second gear (22) is engaged with the first gear (21), and when the handle (5) is in a horizontal state, the protrusion (20) is in contact with the movable part (12).

2. A lithium battery energy storage device with temperature control function according to claim 1, characterized in that: The other end of the cooling pipe (16) penetrates into the interior of the liquid storage tank (9) and its level is higher than the level of the water inlet end of the water inlet pipe (17).

3. The lithium battery energy storage device with temperature control function according to claim 1, characterized in that: The limiting assembly comprises an elastic member (10), a movable member (12) and a limiting member (13); the elastic member (10) is vertically mounted above the interior of the sealing cover (2); the movable member (12) is movably mounted at the lower end of the elastic member (10) and located inside the sealing cover (2); and the limiting member (13) is mounted at the lower part of the movable member (12) corresponding to the lithium battery (8) and partially extends to the outside of the sealing cover (2).

4. The lithium battery energy storage device with temperature control function according to claim 1, characterized in that: The protrusion (20) is arranged on the same side as the handle (5), and the height of the protrusion (20) is greater than the height of the second tooth (22).

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