Battery heat dissipation equipment and method for energy storage of lithium iron phosphate battery

Abstract

The invention discloses a battery heat dissipation device and method for energy storage of a lithium iron phosphate battery, the battery heat dissipation device comprises an energy storage cabinet and a lifting assembly arranged on the inner wall of the energy storage cabinet, the lifting assembly comprises a lifting plate, a guide rail, a rack, a restraint rod, a telescopic cylinder, a latch, a reset spring and a resistance reduction wheel, and the resistance reduction wheel is rotatably inserted in a groove in the inner wall of the lifting plate. The combination of the liquid cooling plate and the heat conduction paste ensures that the energy storage battery can obtain effective heat conduction and heat dissipation, the arrangement of the booster fan and the ventilation plate further improves the heat dissipation efficiency, the design of the lifting assembly enables the energy storage battery to be conveniently put in and taken out, and meanwhile the lifting plate can move on the guide rail to facilitate position adjustment. Under the action of a telescopic air cylinder and a reset spring, clamping teeth can be meshed with a rack, the rotating frame and the smearing roller are moved to conduct roller smearing of heat conduction paste on the outer wall of the energy storage battery, the rotating frame can generate torque through the design of a supporting spring, and it is ensured that the heat conduction paste can be evenly smeared on the outer wall of the energy storage battery.

Description

Technical Field

[0001] The present invention belongs to the field of energy storage technology, and specifically relates to a battery heat dissipation device and method for lithium iron phosphate battery energy storage. Background Art

[0002] Energy storage batteries are devices that can convert electrical energy into chemical energy (or physical energy, kinetic energy) and store it, and then release the stored energy into electrical energy when needed. It is one of the key technologies in the field of energy storage, and is of great significance for improving energy utilization efficiency, promoting the application of clean energy, reducing carbon emissions, and achieving energy transformation and sustainable development. The following is a detailed introduction to energy storage batteries: Energy storage batteries mainly store and release electrical energy through components such as positive electrodes, negative electrodes, electrolytes, and diaphragms. During the charging process, electrical energy is converted into chemical energy and stored inside the battery; during the discharge process, the stored chemical energy is converted into electrical energy output. In this process, a chemical reaction occurs between the positive and negative electrodes, involving electron transfer and ion migration, to form an electric current. The diaphragm prevents direct contact between the positive and negative electrodes and ensures the normal operation of the battery.

[0003] Lithium iron phosphate battery is a lithium-ion battery that uses lithium iron phosphate (LiFePO4) as the positive electrode material and carbon (usually graphite) as the negative electrode material. The following is a detailed introduction to lithium iron phosphate batteries: Structure: Lithium iron phosphate batteries are composed of positive electrodes (lithium iron phosphate materials), negative electrodes (carbon materials), electrolytes, and separators. The positive electrode is connected to the positive electrode of the battery through aluminum foil, and the negative electrode is connected to the negative electrode of the battery through copper foil. In the middle is a polymer separator that separates the positive electrode from the negative electrode. Lithium ions can pass through the separator, but electrons cannot. Working principle: During the charging process, some lithium ions in lithium iron phosphate are released, transferred to the negative electrode through the electrolyte, and embedded in the negative electrode carbon material; at the same time, electrons are released from the positive electrode and reach the negative electrode through the external circuit to maintain the balance of the chemical reaction. The discharge process is the opposite. Lithium ions are released from the negative electrode and reach the positive electrode through the electrolyte. At the same time, the negative electrode releases electrons and reaches the positive electrode through the external circuit to provide energy to the outside world.

[0004] Gap problem between liquid cooling plate and outer wall of lithium iron phosphate battery

[0005] In lithium iron phosphate battery energy storage systems, the liquid cooling plate is a key component for heat dissipation. However, there is often a gap between the liquid cooling plate and the outer wall of the lithium iron phosphate battery due to the following reasons:

[0006] Insufficient manufacturing precision:

[0007] During the manufacturing process of the liquid cooling plate and lithium iron phosphate battery, due to process limitations or lax quality control, there may be a certain deviation in the size and shape of the two. This deviation will cause the liquid cooling plate to not fit completely with the outer wall of the battery during assembly, resulting in a gap.

[0008] Difference in thermal expansion coefficient of materials: Liquid cooling plate and lithium iron phosphate battery are made of different materials, and their thermal expansion coefficients may be different. During the operation of the battery, due to temperature changes, the two may produce relative displacement due to the difference in thermal expansion coefficients, resulting in the formation of gaps.

[0009] Installation process problems: During the installation of the liquid cooling plate and lithium iron phosphate battery, improper installation process, such as insufficient tightening force or unreasonable tightening sequence, may lead to the formation of gaps. The existence of gaps will seriously affect the heat exchange efficiency between the liquid cooling plate and the lithium iron phosphate battery. Because the gap will hinder the flow of coolant and the transfer of heat, the heat generated by the battery cannot be taken away in time, thus affecting the performance and safety of the battery.

[0010] 2. The problem that the lithium iron phosphate battery storage mechanism cannot be lifted or lowered. The storage and lifting of lithium iron phosphate batteries is an important part of the energy storage system. However, due to the following reasons, the existing lithium iron phosphate battery storage mechanism is often unable to perform lifting operations: Structural design limitations: The storage mechanism of lithium iron phosphate batteries may only consider horizontal placement and fixed installation when designing, but does not consider the need for lifting operations. This design limitation results in the inability to directly perform lifting operations through the storage mechanism when the battery needs to be lifted.

[0011] Safety considerations: Lithium iron phosphate batteries have a certain weight and volume. If they are not handled properly during the lifting process, they may pose a safety hazard to personnel and equipment. Therefore, in order to ensure safety, some energy storage systems may deliberately avoid the design of lifting mechanisms during design. Cost and maintenance considerations: The design, manufacture, and maintenance of lifting mechanisms require a certain amount of cost investment. If the budget for the energy storage system is limited or the technical level of the maintenance personnel is insufficient, they may choose not to install a lifting mechanism to reduce costs and maintenance difficulties. Summary of the invention

[0012] The technical solution adopted by the present invention is as follows: a battery heat dissipation device and method for lithium iron phosphate battery energy storage, comprising:

[0013] Energy storage cabinet;

[0014] A lifting assembly is arranged at the inner wall of the energy storage cabinet, wherein: the lifting assembly includes a lifting plate, a guide rail, a rack, a constraint rod, a telescopic cylinder, a latch, a reset spring and a drag reduction wheel, the drag reduction wheel is rotatably inserted in the inner wall groove of the lifting plate, the guide rail and the rack are both fixedly arranged on the inner wall of the energy storage cabinet, the drag reduction wheel is rotatably embedded in the inner wall of the guide rail, the constraint rod is fixedly arranged at the corners on both sides of the outer wall of the lifting plate, the telescopic cylinder is fixedly arranged at the corners on both sides of the outer wall of the lifting plate, the latch is fixedly arranged at the output end of the telescopic cylinder, the reset spring is sleeved on the outer wall of the output end of the telescopic cylinder, and the rack and the latch match each other;

[0015] A heat dissipation component is arranged on the inner wall of the energy storage cabinet, wherein: the heat dissipation component includes a movable plate, a limiting groove, a sealing shell, a liquid cooling plate, a movable frame, a limiting rod, a rotating frame, a coating roller, a nozzle and a supporting spring, the limiting groove is opened at both sides of the inner wall of the lifting plate, the movable plate is slidably embedded in the inner wall of the limiting groove, the sealing shell is fixedly arranged on the outer wall of the lifting plate, the liquid cooling plate is slidably embedded in the inner wall of the sealing shell, the movable frame is slidably embedded in the inner wall of the sealing shell, the limiting rod is embedded in the inner wall of one end of the movable frame, the rotating frame is rotatably sleeved on the outer wall of the limiting rod, the coating roller is rotatably inserted into the inner wall opening of one end of the rotating frame, the nozzle is fixedly arranged on one side of the outer wall of the rotating frame, one end of the supporting spring is fixedly arranged on one side of the outer wall of the rotating frame, and the other end of the supporting spring is fixedly arranged on the outer wall of the movable frame.

[0016] Furthermore, an isolation plate is fixedly provided on one side of the outer wall of the energy storage cabinet, and a conveying hole is opened on one side of the outer wall of the isolation plate. A breathable plate is hingedly provided on one side of the outer wall of the energy storage cabinet via a hinge.

[0017] Furthermore, a restraining shell is sleeved on one side of the outer wall of the energy storage cabinet, and a booster fan is embedded in the top opening of the outer wall of the restraining shell, and the restraining shell and the isolation plate match each other.

[0018] Furthermore, a driving motor is fixedly provided on one side of the outer wall of the sealing shell, and a screw rod is fixedly provided on the output end of the driving motor, and one end of the screw rod is threadedly connected to the inner wall opening of the moving frame.

[0019] Furthermore, lifting rods are fixedly provided at the top corners of the outer wall of the liquid cooling plate, and a compression spring is fixedly provided at the top of the outer wall of the lifting rod, and the lifting rod is slidably embedded in the inner wall of the sealing shell, and one end of the compression spring is embedded in the inner wall of the sealing shell.

[0020] Furthermore, a bolt is fixedly provided at the center of the top of the outer wall of the lifting rod, and a nut is threadedly connected to the outer wall of the bolt.

[0021] Furthermore, a honeycomb panel is fixedly provided on one side of the outer wall of the movable plate, and the honeycomb panel and the sealing shell match each other.

[0022] Furthermore, the input end of the nozzle is connected to an external thermal paste supply device through a hose.

[0023] Furthermore, the delivery hole is connected to the sealing shell through a telescopic silicone tube, and the liquid cooling plate is connected to the liquid cooling supply device through a hose.

[0024] A method for using a battery heat dissipation device for lithium iron phosphate battery energy storage, applied to any one of the above-mentioned battery heat dissipation devices for lithium iron phosphate battery energy storage, comprises the following steps:

[0025] S1. Deploy the energy storage cabinet to the designated work location, and then refurbish it using power batteries discarded from new energy vehicles to ensure the cleanliness of its outer wall;

[0026] S2, open the air permeable plate, select the corresponding lifting plate, and the lifting plate moves inside the guide rail under the drive of the drag reduction wheel, so that the corresponding lifting plate is lowered to a height that is convenient for operation. Use the lifting device to lift the battery pack to one side of the outer wall of the energy storage cabinet, pull the movable plate, and limit the movable plate through the limiting groove. Then, use the groove at the top center of the outer wall of the movable plate to complete the storage of the energy storage battery, fix the energy storage battery, and then push the movable plate so that the movable plate returns to the center of the lifting plate. Pull the lifting plate, and the actual lifting plate rises to the specified working position, ensuring that the sealing shell is flush with the corresponding conveying hole to ensure the smooth flow of the cooling airflow, start the telescopic cylinder, and use the card tooth to move on the constraint rod under the action of the reset spring to complete the meshing of the card tooth and the rack to ensure the stable positioning of the lifting plate;

[0027] S3, start the driving motor to drive the screw to rotate, move the moving frame inside the sealing shell, drive the rotating frame to generate torque through the supporting spring, and then use the coating roller to roll the thermal paste injected by the nozzle on the top of the outer wall of the energy storage battery to avoid the gap of the liquid cooling plate and cause the thermal conductivity to decrease. After the moving frame is reset, loosen the nut, so that under the action of the extrusion spring, the liquid cooling plate is driven to squeeze the energy storage battery to complete the heat conduction through the thermal paste;

[0028] S4. When the heat generated by the energy storage battery is not large, the boost fan is started, and the airflow enters the delivery hole through the constraint shell, so that the flow channel enters the interior of the sealed shell, and the cooling airflow is used to complete the heat exchange to reduce the heat generated by the energy storage battery. The hot air flow is then discharged through the honeycomb panel and the hot air flow is discharged through the breathable panel.

[0029] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0030] (1) A combination of a liquid cooling plate and thermal paste is used to ensure that the energy storage battery can obtain effective heat conduction and heat dissipation. The liquid cooling plate is connected to the liquid cooling supply device through a hose and can continuously provide cooling effect. A booster fan and a breathable plate are provided to increase the air flow when needed, further improving the heat dissipation efficiency.

[0031] (2) The design of the lifting assembly enables the energy storage battery to be easily placed in and taken out. At the same time, the lifting plate can move on the guide rail to facilitate position adjustment. Through the action of the telescopic cylinder and the return spring, the latch can engage with the rack to ensure the stable positioning of the lifting plate.

[0032] (3) The driving motor drives the screw rod to rotate, and the movable frame can move inside the sealed shell, thereby driving the rotating frame and the coating roller to roll the thermal conductive paste on the outer wall of the energy storage battery. The design of the supporting spring enables the rotating frame to generate torque to ensure that the thermal conductive paste can be evenly coated on the outer wall of the energy storage battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A perspective view of the present invention;

[0034] Figure 2 It is a partial half-section stereoscopic diagram of the present invention;

[0035] Figure 3 is a three-dimensional diagram of the honeycomb panel of the present invention;

[0036] Figure 4 is a three-dimensional diagram of the isolation plate of the present invention;

[0037] Figure 5 is a three-dimensional diagram of the guide rail of the present invention;

[0038] Figure 6 It is an enlarged schematic diagram of A of the present invention;

[0039] Figure 7 A three-dimensional diagram of a movable plate of the present invention;

[0040] Figure 8 A three-dimensional diagram of a mobile rack of the present invention;

[0041] Fig. 9 It is a three-dimensional diagram of the sealing shell of the present invention.

[0042] Markings in the figure: 1. Energy storage cabinet; 2. Lifting plate; 3. Honeycomb plate; 4. Guide rail; 5. Rack; 6. Moving plate; 7. Constraint rod; 8. Telescopic cylinder; 9. Gear; 10. Reset spring; 11. Sealing shell; 12. Liquid cooling plate; 13. Driving motor; 14. Screw; 15. Moving frame; 16. Limit rod; 17. Rotating frame; 18. Coating roller; 19. Spray nozzle; 20. Support spring; 21. Lifting rod; 22. Extrusion spring; 23. Bolt; 24. Nut; 101. Breathable plate; 102. Constraint shell; 103. Booster fan; 104. Isolation plate; 105. Delivery hole; 201. Limiting groove; 202. Drag reduction wheel. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] Embodiment 1

[0045] Reference Figure 1 - Fig. 9 : A battery heat dissipation device and method for lithium iron phosphate battery energy storage, comprising:

[0046] Energy storage cabinet 1;

[0047] A lifting component is arranged at the inner wall of the energy storage cabinet 1, wherein: the lifting component includes a lifting plate 2, a guide rail 4, a rack 5, a constraint rod 7, a telescopic cylinder 8, a latch 9, a reset spring 10 and a drag reduction wheel 202, the drag reduction wheel 202 is rotatably inserted in the inner wall groove of the lifting plate 2, the guide rail 4 and the rack 5 are both fixedly arranged at the inner wall of the energy storage cabinet 1, the drag reduction wheel 202 is rotatably embedded in the inner wall of the guide rail 4, the constraint rod 7 is fixedly arranged at the corners on both sides of the outer wall of the lifting plate 2, the telescopic cylinder 8 is fixedly arranged at the corners on both sides of the outer wall of the lifting plate 2, the latch 9 is fixedly arranged at the output end of the telescopic cylinder 8, the reset spring 10 is sleeved on the outer wall of the output end of the telescopic cylinder 8, the rack 5 and the latch 9 match each other, and a heat dissipation component is arranged at the inner wall of the energy storage cabinet 1, wherein: the heat dissipation component The thermal component includes a movable plate 6, a limiting groove 201, a sealing shell 11, a liquid cooling plate 12, a movable frame 15, a limiting rod 16, a rotating frame 17, a coating roller 18, a nozzle 19 and a supporting spring 20. The limiting groove 201 is opened at both sides of the inner wall of the lifting plate 2, the movable plate 6 is slidably embedded in the inner wall of the limiting groove 201, the sealing shell 11 is fixedly arranged on the outer wall of the lifting plate 2, the liquid cooling plate 12 is slidably embedded in the inner wall of the sealing shell 11, the movable frame 15 is slidably embedded in the inner wall of the sealing shell 11, the limiting rod 16 is embedded in the inner wall of one end of the movable frame 15, the rotating frame 17 is rotatably sleeved on the outer wall of the limiting rod 16, the coating roller 18 is rotatably inserted into the inner wall opening of one end of the rotating frame 17, and the nozzle 19 is fixedly arranged on one side of the outer wall of the rotating frame 17 One end of the support spring 20 is fixedly arranged at one side of the outer wall of the rotating frame 17, and the other end of the support spring 20 is fixedly arranged at the outer wall of the mobile frame 15. The energy storage cabinet 1 is deployed to the designated working position, and then the power battery discarded by the new energy vehicle is refurbished to ensure the cleanliness of its outer wall. The air permeable plate 101 is opened, and the corresponding lifting plate 2 is selected. The lifting plate 2 is driven by the drag reduction wheel 202 to move inside the guide rail 4, so that the corresponding lifting plate 2 is lowered to a height convenient for operation. The battery pack is hoisted to one side of the outer wall of the energy storage cabinet 1 by using the lifting device, and the mobile plate 6 is pulled. The mobile plate 6 is limited by the limiting groove 201. Then, the groove at the top center of the outer wall of the mobile plate 6 is used to complete the storage of the energy storage battery. The energy storage battery is fixed The lifting plate 2 is fixed, and then the movable plate 6 is pushed to make the movable plate 6 return to the center of the lifting plate 2, and the lifting plate 2 is pulled. The actual lifting plate 2 rises to the specified working position, ensuring that the sealing shell 11 is flush with the corresponding conveying hole 105 to ensure the smooth flow of the cooling airflow, and the telescopic cylinder 8 is started. Under the action of the reset spring 10, the latch 9 is used to move on the constraint rod 7 to complete the engagement of the latch 9 and the rack 5 to ensure the stable positioning of the lifting plate 2, and the driving motor 13 is started to drive the screw rod 14 to rotate, and the movable frame 15 moves inside the sealing shell 11 through the movable frame 15, and the rotating frame 17 is driven to generate torque through the supporting spring 20, and then the thermal conductive paste injected by the nozzle 19 is rolled on the top of the outer wall of the energy storage battery through the coating roller 18 to avoid the gap of the liquid cooling plate 12.The thermal conductivity is reduced, and then the movable frame 15 is reset, and the nut 24 is loosened, so that under the action of the extrusion spring 22, the liquid cooling plate 12 is driven to squeeze the energy storage battery, and the heat conduction is completed through the thermal conductive paste. When the heat generation of the energy storage battery is not large, the booster fan 103 is started, and the airflow enters the delivery hole 105 through the constraint shell 102, so that the flow channel enters the inside of the sealing shell 11, and the cooling airflow is used to complete the heat exchange, reduce the heat generated by the energy storage battery, and then the hot airflow is discharged through the honeycomb panel 3 and the hot airflow is discharged through the breathable plate 101.

[0048] Reference Figure 1 - Fig. 9 An isolation plate 104 is fixedly arranged on one side of the outer wall of the energy storage cabinet 1, and a delivery hole 105 is opened on one side of the outer wall of the isolation plate 104. A breathable plate 101 is hingedly arranged on one side of the outer wall of the energy storage cabinet 1. A constraint shell 102 is sleeved on one side of the outer wall of the energy storage cabinet 1, and a booster fan 103 is embedded in the top opening of the outer wall of the constraint shell 102. The booster fan 103 can deliver clean air to the interior of the constraint shell 102, and the constraint shell 102 and the isolation plate 104 match each other. A drive motor 13 is fixedly arranged on one side of the outer wall of the sealing shell 11, and the output end of the drive motor 13 is fixedly arranged. A screw rod 14 is provided, one end of which is threadedly connected to the opening of the inner wall of the movable frame 15, and lifting rods 21 are fixedly provided at the top corners of the outer wall of the liquid cooling plate 12, and a squeezing spring 22 is fixedly provided at the top of the outer wall of the lifting rod 21. The squeezing spring 22 can drive the liquid cooling plate 12 to descend, and improve the heat exchange efficiency through the thermal conductive paste, and the lifting rod 21 is slidably embedded in the inner wall of the sealing shell 11, one end of the squeezing spring 22 is embedded in the inner wall of the sealing shell 11, and a bolt 23 is fixedly provided at the center of the top of the outer wall of the lifting rod 21, and a nut 24 is threadedly connected to the outer wall of the bolt 23.

[0049] Reference Figure 1 - Fig. 9 : A honeycomb panel 3 is fixedly arranged on one side of the outer wall of the movable plate 6, and the honeycomb panel 3 matches with the sealing shell 11. The input end of the nozzle 19 is connected to the external thermal paste supply device through a hose. The sealable nozzle 19 can ensure the sealing of the thermal paste and avoid the solidification of the thermal paste. The delivery hole 105 is connected to the sealing shell 11 through a telescopic silicone tube to ensure the stable flow of the cooling airflow. The liquid cooling plate 12 is connected to the liquid cooling supply device through a hose.

[0050] Reference Figure 1 - Fig. 9 :A method for using a battery heat dissipation device for lithium iron phosphate battery energy storage, applied to any one of the above-mentioned battery heat dissipation devices for lithium iron phosphate battery energy storage, comprising the following steps:

[0051] S1. Deploy the energy storage cabinet 1 to the designated working position, and then refurbish it using power batteries discarded from new energy vehicles to ensure the cleanliness of its outer wall;

[0052] S2, open the air permeable plate 101, select the corresponding lifting plate 2, and the lifting plate 2 moves inside the guide rail 4 under the drive of the drag reduction wheel 202, so that the corresponding lifting plate 2 is lowered to a height convenient for operation, and the battery pack is hoisted to one side of the outer wall of the energy storage cabinet 1 by using the lifting device, and the movable plate 6 is pulled, and the movable plate 6 is limited by the limiting groove 201, and then the groove is opened at the center of the top of the outer wall of the movable plate 6 to complete the storage of the energy storage battery and fix the energy storage battery, and then the movable plate 6 is pushed to make the movable plate 6 return to the center of the lifting plate 2, and the lifting plate 2 is pulled, and the actual lifting plate 2 rises to the specified working position, ensuring that the sealing shell 11 is flush with the corresponding conveying hole 105 to ensure the smooth flow of the cooling airflow, and the telescopic cylinder 8 is started, and the latch 9 is moved on the constraint rod 7 under the action of the reset spring 10 to complete the engagement of the latch 9 and the rack 5 to ensure the stable positioning of the lifting plate 2;

[0053] S3, start the driving motor 13, drive the screw 14 to rotate, move the moving frame 15 inside the sealing shell 11, drive the rotating frame 17 to generate torque through the supporting spring 20, and then roll the thermal paste injected by the nozzle 19 on the top of the outer wall of the energy storage battery through the coating roller 18 to avoid the gap of the liquid cooling plate 12 and cause the thermal conductivity to decrease. After the moving frame 15 is reset, loosen the nut 24, so that under the action of the extrusion spring 22, the liquid cooling plate 12 is driven to squeeze the energy storage battery, and heat conduction is completed through the thermal paste;

[0054] S4. When the heat generated by the energy storage battery is not large, the boost fan 103 is started, and the airflow enters the delivery hole 105 through the constraint shell 102, so that the flow channel enters the interior of the sealing shell 11, and the cooling airflow is used to complete the heat exchange to reduce the heat generated by the energy storage battery. Then, the hot airflow is discharged through the honeycomb panel 3 and the hot airflow is discharged through the breathable panel 101.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery heat dissipation device for lithium iron phosphate battery energy storage, characterized in that: include: Energy storage cabinet (1); A lifting component is arranged on the inner wall of an energy storage cabinet (1), wherein: the lifting component comprises a lifting plate (2), a guide rail (4), a rack (5), a constraint rod (7), a telescopic cylinder (8), a latching tooth (9), a reset spring (10) and a drag reduction wheel (202); the drag reduction wheel (202) is rotatably inserted in a groove on the inner wall of the lifting plate (2); the guide rail (4) and the rack (5) are both fixedly arranged on the inner wall of the energy storage cabinet (1); the drag reduction wheel (202) is rotatably embedded in the inner wall of the guide rail (4); the constraint rod (7) is fixedly arranged on the corners on both sides of the outer wall of the lifting plate (2); the telescopic cylinder (8) is fixedly arranged on the corners on both sides of the outer wall of the lifting plate (2); the latching tooth (9) is fixedly arranged on the output end of the telescopic cylinder (8); the reset spring (10) is sleeved on the outer wall of the output end of the telescopic cylinder (8); and the rack (5) and the latching tooth (9) match each other; A heat dissipation component is arranged on the inner wall of an energy storage cabinet (1), wherein: the heat dissipation component comprises a movable plate (6), a limiting groove (201), a sealing shell (11), a liquid cooling plate (12), a movable frame (15), a limiting rod (16), a rotating frame (17), a coating roller (18), a nozzle (19) and a supporting spring (20); the limiting groove (201) is arranged on both sides of the inner wall of the lifting plate (2); the movable plate (6) is slidably embedded in the inner wall of the limiting groove (201); the sealing shell (11) is fixedly arranged on the outer wall of the lifting plate (2); the liquid cooling plate (12) is slidably embedded in the sealing shell (11); 1), the movable frame (15) is slidably embedded in the inner wall of the sealing shell (11), the limiting rod (16) is embedded in the inner wall of one end of the movable frame (15), the rotating frame (17) is rotatably sleeved on the outer wall of the limiting rod (16), the coating roller (18) is rotatably inserted in the inner wall opening of one end of the rotating frame (17), the spray head (19) is fixedly arranged on one side of the outer wall of the rotating frame (17), one end of the support spring (20) is fixedly arranged on one side of the outer wall of the rotating frame (17), and the other end of the support spring (20) is fixedly arranged on the outer wall of the movable frame (15).

2. A battery heat dissipation device for lithium iron phosphate battery energy storage as claimed in claim 1, characterized in that: An isolation plate (104) is fixedly provided on one side of the outer wall of the energy storage cabinet (1), and a conveying hole (105) is opened on one side of the outer wall of the isolation plate (104). A ventilating plate (101) is hingedly provided on one side of the outer wall of the energy storage cabinet (1).

3. A battery heat dissipation device for lithium iron phosphate battery energy storage as claimed in claim 2, characterized in that: A restraining shell (102) is sleeved on one side of the outer wall of the energy storage cabinet (1), and a booster fan (103) is embedded in the top opening of the outer wall of the restraining shell (102), and the restraining shell (102) and the isolation plate (104) match each other.

4. A battery heat dissipation device for lithium iron phosphate battery energy storage as claimed in claim 3, characterized in that: A driving motor (13) is fixedly arranged on one side of the outer wall of the sealing shell (11), and a screw rod (14) is fixedly arranged on the output end of the driving motor (13), and one end of the screw rod (14) is threadedly connected to an opening of the inner wall of the moving frame (15).

5. A battery heat dissipation device for lithium iron phosphate battery energy storage as claimed in claim 4, characterized in that: A lifting rod (21) is fixedly arranged at the top corner of the outer wall of the liquid cooling plate (12), and a pressing spring (22) is fixedly arranged at the top of the outer wall of the lifting rod (21), and the lifting rod (21) is slidably embedded in the inner wall of the sealing shell (11), and one end of the pressing spring (22) is embedded in the inner wall of the sealing shell (11).

6. A battery heat dissipation device for lithium iron phosphate battery energy storage as claimed in claim 5, characterized in that: A bolt (23) is fixedly arranged at the center of the top of the outer wall of the lifting rod (21), and a nut (24) is threadedly connected to the outer wall of the bolt (23).

7. A battery heat dissipation device for lithium iron phosphate battery energy storage as claimed in claim 6, characterized in that: A honeycomb panel (3) is fixedly arranged on one side of the outer wall of the movable plate (6), and the honeycomb panel (3) and the sealing shell (11) match each other.

8. A battery heat dissipation device for lithium iron phosphate battery energy storage as claimed in claim 7, characterized in that: The input end of the nozzle (19) is connected to an external thermal paste supply device through a hose.

9. A battery heat dissipation device for lithium iron phosphate battery energy storage as claimed in claim 8, characterized in that: The delivery hole (105) is connected to the sealing shell (11) via a telescopic silicone tube, and the liquid cooling plate (11) is connected to the liquid cooling supply device via a hose.

10. A method for using a battery heat dissipation device for lithium iron phosphate battery energy storage, characterized in that: A battery heat dissipation device for lithium iron phosphate battery energy storage as described in any one of claims 1 to 9, comprising the following steps: S1. deploying the energy storage cabinet (1) to a designated working position, and then refurbishing it using power batteries discarded from new energy vehicles to ensure the cleanliness of its outer wall; S2, open the air permeable plate (101), select the corresponding lifting plate (2), and drive the lifting plate (2) to move inside the guide rail (4) under the drive of the drag reduction wheel (202), so that the corresponding lifting plate (2) is lowered to a height convenient for operation, and use the lifting device to lift the battery pack to one side of the outer wall of the energy storage cabinet (1), pull the movable plate (6), and limit the movable plate (6) through the limiting groove (201), and then use the groove at the top center of the outer wall of the movable plate (6) to complete the storage of the energy storage battery, and put the energy storage battery The movable plate (6) is then pushed to return the movable plate (6) to the center of the lifting plate (2), and the lifting plate (2) is pulled, so that the lifting plate (2) actually rises to the designated working position, ensuring that the sealing shell (11) is flush with the corresponding delivery hole (105) to ensure the smooth flow of the cooling airflow, and the telescopic cylinder (8) is started. Under the action of the return spring (10), the latch (9) is moved on the restraining rod (7) to complete the meshing of the latch (9) and the rack (5), thereby ensuring the stable positioning of the lifting plate (2); S3, starting the driving motor (13), driving the screw rod (14) to rotate, and moving the moving frame (15) inside the sealing shell (11), driving the rotating frame (17) to generate torque through the supporting spring (20), and then rolling the thermal conductive paste injected by the nozzle (19) on the top of the outer wall of the energy storage battery through the coating roller (18), avoiding the gap of the liquid cooling plate (12) and causing the thermal conductivity to decrease, and then after the moving frame (15) is reset, loosening the nut (24), so that under the action of the squeezing spring (22), the liquid cooling plate (12) is driven to squeeze the energy storage battery, and heat conduction is completed through the thermal conductive paste; S4. When the heat generated by the energy storage battery is not large, the boost fan (103) is started, and the airflow enters the delivery hole (105) through the restraining shell (102), so that the flow channel enters the interior of the sealing shell (11), and the cooling airflow is used to complete the heat exchange, thereby reducing the heat generated by the energy storage battery. The hot airflow is then discharged through the honeycomb panel (3) and the hot airflow is discharged through the air permeable panel (101).

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