Small mobile energy storage cabinet

Abstract

The utility model relates to the technical field of energy storage cabinets, in particular to a small mobile energy storage cabinet which comprises a cabinet body, two cabinet doors rotationally connected to the front end of the cabinet body, a plurality of battery modules installed in the cabinet body, a partition plate fixedly connected to the middle of the inner wall of the cabinet body, and a plurality of metal heat conduction blocks installed on the side wall of the partition plate. The outer walls of the two ends of the battery module abut against the outer wall of the metal heat conduction block, a liquid cooling groove is formed in the metal heat conduction block, a plurality of flow guide blocks are fixedly connected into the liquid cooling groove, a backflow block is fixedly connected into the liquid cooling groove, one end of the backflow block is fixedly connected with a partition piece, and the metal heat conduction block communicates with a distribution pipe and a backflow pipe. The flow path of the cooling liquid is optimized through the flow guide block, the cooling liquid is ensured to be in full contact with the inner wall of the metal heat conduction block, the heat exchange efficiency is improved, the working temperature of the battery module is reduced, the service life of the battery module is prolonged, the safety of the battery module is improved, and long-term use of the cabinet body is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage cabinet technical field, especially a small -size mobile energy storage cabinet. BACKGROUND

[0002] Energy storage cabinet is a kind of equipment specially designed to store electric energy, and the main function of energy storage cabinet is to store electric energy when power supply is sufficient, and then release these electric energy when power demand peak or power is insufficient.

[0003] The small -size distributed energy storage power cabinet in prior art pays attention to improving the space utilization and adjustment efficiency of energy storage power cabinet on power cabinet structure design, so that the structure of energy storage power cabinet is designed to be relatively compact. But due to the heat generated in the process of charging and discharging of the battery module of the power cabinet in the use process, the compact structure design makes the heat dissipation effect of the power cabinet poor, and the heat is difficult to dissipate quickly, and long time use in high temperature environment, easily lead to the temperature of battery module being too high, and then affect the battery performance and safety, not conducive to the long-term use of energy storage cabinet. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a small -size mobile energy storage cabinet, the flow path of cooling liquid is optimized by flow guide block, the inner wall of metal heat conduction block is ensured to be fully contacted by cooling liquid, the heat exchange efficiency is improved, the working temperature of battery module is reduced, the service life of battery module is prolonged and its safety is improved, and the long -term use of cabinet body is facilitated.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a small -size mobile energy storage cabinet, including the cabinet body, the front end of the cabinet body is rotatably connected with two cabinet doors, a plurality of battery modules are installed in the cabinet body, the middle part of the inner wall of the cabinet body is fixedly connected with a partition plate, a plurality of metal heat conduction blocks are installed on the side wall of the partition plate, the outer wall of the both ends of the battery module is respectively abutted with the outer wall of metal heat conduction block, the liquid cooling groove is set up in the inside of metal heat conduction block, a plurality of flow guide blocks are fixedly connected in the inside of liquid cooling groove, a backflow block is fixedly connected in the inside of liquid cooling groove, one end of the backflow block is fixedly connected with a partition piece, the distribution pipe and the backflow pipe are respectively communicated on the metal heat conduction block, the conveying pipe and the recovery pipe are respectively fixedly connected on the partition plate, a plurality of distribution pipes are respectively communicated with conveying pipe, a plurality of backflow pipes are respectively communicated with recovery pipe, the rear wall of the cabinet body is installed with heat dissipation assembly, the water tank is equipped on the heat dissipation assembly, the conveying pipe and recovery pipe are respectively communicated with water tank.

[0006] Preferably, the two adjacent flow guide blocks are staggered, the other end of the partition piece is fixedly connected with the groove wall of liquid cooling groove, and the two ends of the distribution pipe and the backflow pipe are respectively communicated with the metal heat conduction blocks on both sides of the partition plate.

[0007] Through the technical scheme, the liquid cooled after being cooled in the water tank is received by the distribution pipe, distributed to the liquid cooling grooves of the metal heat-conducting blocks through the conveying pipe, and flows into the recovery pipe through the backflow pipe after heat exchange in the liquid cooling grooves, and finally returns to the water tank.

[0008] Preferably, two electric drive wheels are symmetrically arranged on one side of the bottom surface of the cabinet body, two brake wheels are symmetrically arranged on the other side of the bottom surface of the cabinet body, and lug ears are arranged at the four corners of the top surface of the cabinet body.

[0009] Through the technical scheme, the electric drive wheels and the brake wheels enable the cabinet body to move and be fixed.

[0010] Preferably, a water pump is arranged on the top surface of the water tank through a mounting seat, the water inlet end of the water pump is in communication with the upper end inside the water tank, the water outlet end of the water pump is in communication with the conveying pipe, the recovery pipe is in communication with the lower end of the water tank, and a water pipe with an electric valve is in communication with the bottom surface of the water tank.

[0011] Through the technical scheme, the external cooling liquid can be conveniently filled into the water tank, the cooling liquid in the water tank can be conveniently discharged to the outside when the electric valve is opened, and the cleaning and maintenance of the water tank are facilitated.

[0012] Preferably, the heat dissipation assembly comprises a heat insulation block, the heat insulation block is arranged on the middle part of the inner wall of the water tank, a plurality of metal heat dissipation fins are inserted into the water tank, and the connection part between the metal heat dissipation fin and the water tank is sealed by a sealing ring.

[0013] Through the technical scheme, the metal heat dissipation fin facilitates heat dissipation of the cooling liquid in the water tank.

[0014] Preferably, flow-through holes are arranged on the metal heat dissipation fin, adjacent flow-through holes are arranged in a staggered manner, one end of the metal heat dissipation fin is located inside the water tank, the other end of the metal heat dissipation fin is located outside the water tank, and a frame is fixedly connected to the outer wall of the water tank.

[0015] Preferably, a plurality of mounting frames are arranged on the frame, a fixed block is fixedly connected to the middle part of the mounting frame, and a fan blade is rotatably connected to the middle part of the fixed block.

[0016] Through the technical scheme, the first pulley and the traction wheel rotate synchronously to drive the fan blade to rotate, and the rotation of the fan blade sucks the air between the water tank and the frame.

[0017] Preferably, a traction wheel is sleeved on the central shaft of the fan blade located in the middle part, a first pulley is sleeved on the central shaft of the fan blade located at the two ends, respectively, a rotating shaft is coaxially connected to the output shaft of the water pump, a support is rotatably connected to the rotating shaft, and the support is fixedly connected to the top surface of the frame.

[0018] Through the technical scheme, the rotating shaft rotates along the support.

[0019] Preferably, a second pulley is sleeved on the rotating shaft, and the first pulley and the second pulley are respectively driven by belts and the wheel groove of the traction wheel.

[0020] Through the technical scheme, the traction wheel is driven to rotate by the first pulley through the belt friction, so that the first pulley and the traction wheel rotate synchronously to drive the fan blade to rotate.

[0021] The utility model discloses the beneficial effects of:

[0022] 1. The metal heat-conducting block inside the cabinet body is tightly abutted with the two end outer walls of the battery module, so that the heat generated by the battery module during work is effectively transferred to the metal heat-conducting block, the liquid cooling groove inside the metal heat-conducting block is filled with cooling liquid, the cooling liquid circulates in the liquid cooling groove through the guidance of the flow guide block, the flow path of the cooling liquid is optimized by the design of the flow guide block, so that the cooling liquid fully contacts the inner wall of the metal heat-conducting block, thereby improving the heat exchange efficiency, when the cooling liquid circulates in the liquid cooling groove, the cooled liquid is received from the water tank through the distribution pipe, and is distributed to the liquid cooling groove of each metal heat-conducting block through the conveying pipe, after heat exchange in the liquid cooling groove, the warmed cooling liquid flows into the recovery pipe through the backflow pipe, and finally returns to the water tank, the water tank is part of the heat dissipation assembly, and is responsible for cooling the backflow warm liquid, so that the warm liquid becomes cooling liquid again for recycling, the working temperature of the battery module is reduced, the service life of the battery module is prolonged, and the safety of the battery module is improved, thereby facilitating the long-term use of the cabinet body.

[0023] 2. The cooling liquid in the water tank enters the liquid cooling groove of each metal heat-conducting block through the conveying pipe under the drive of the water pump, the cooling liquid in the liquid cooling groove is guided under the guidance of the adjacent staggered flow guide blocks, the contact area and time of the cooling liquid and the inner wall of the metal heat-conducting block are increased, thereby improving the heat exchange efficiency, after the cooling liquid absorbs the heat transferred by the metal heat-conducting block in the liquid cooling groove, the temperature of the cooling liquid is increased, and the cooling liquid flows into the recovery pipe through the backflow pipe, and finally returns to the water tank, the warm liquid returning to the water tank is cooled by the heat dissipation assembly to provide cooling liquid for the next cycle.

[0024] 3. The electric drive wheel and the brake wheel enable the cabinet body to move and be fixed, the electric drive wheel provides power to facilitate the movement of the cabinet body, and the brake wheel fixes the position of the cabinet body when needed to ensure the stability of the cabinet body, and the hanging lug on the top surface of the cabinet body facilitates the hoisting and transportation of the energy storage cabinet by using hoisting tools.

[0025] 4. The warm liquid returning to the water tank is cooled by the metal heat dissipation fin, the flow-through holes formed in the metal heat dissipation fin allow the cooling liquid to flow inside, the adjacent flow-through holes are staggered, the contact area and time of the cooling liquid and the inner wall of the metal heat dissipation fin are increased, the heat dissipation efficiency is improved, one end of the metal heat dissipation fin is located inside the water tank and directly contacts the cooling liquid, the other end of the metal heat dissipation fin is located outside the water tank, heat can be dissipated to the air, the cooling liquid is quickly cooled, the heat dissipation efficiency is improved, and the stable operation of the battery module in the cabinet body is ensured.

[0026] 5. The output shaft of the water pump drives the second belt wheel to rotate through the rotating shaft, the traction wheel is synchronously rotated through the belt friction transmission to the first belt wheel, the first belt wheel and the traction wheel are synchronously rotated to drive the fan blade to rotate, the rotation of the fan blade sucks the air between the water tank and the frame, the air around the metal heat dissipation fin flows, the flowing air takes away the heat of the metal heat dissipation fin, the metal heat dissipation fin is cooled and further cools the cooling liquid in the water tank, the heat dissipation efficiency of the metal heat dissipation fin is improved, and the cooling of the cooling liquid in the water tank is further promoted. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a whole structure schematic diagram of the utility model;

[0028] Figure 2 It is a whole structure back view schematic diagram of the utility model;

[0029] Figure 3 It is a cabinet body structure internal schematic diagram of the utility model;

[0030] Figure 4 It is a metal heat conduction block structure internal schematic diagram of the utility model;

[0031] Figure 5 It is a recycling pipe structure schematic diagram of the utility model;

[0032] Figure 6 It is a water tank structure bottom view schematic diagram of the utility model;

[0033] Figure 7 It is a water tank structure internal schematic diagram of the utility model;

[0034] Figure 8 It is a heat insulation block structure schematic diagram of the utility model;

[0035] Figure 9 It is a fan blade structure schematic diagram of the utility model.

[0036] In the diagram: 1. Cabinet body; 2. Cabinet door; 3. Battery module; 4. Divider plate; 5. Metal heat-conducting block; 6. Liquid cooling tank; 7. Flow guide block; 8. Return block; 9. Partition plate; 10. Distribution pipe; 11. Return pipe; 12. Delivery pipe; 13. Recovery pipe; 14. Heat dissipation assembly; 1401. Water tank; 1402. Water pump; 1403. Heat insulation block; 1404. Metal heat sink; 1405. Flow hole; 1406. Frame; 1407. Mounting frame; 1408. Fan blade; 1409. Traction sheave; 1410. First pulley; 1411. Shaft; 1412. Support; 1413. Second pulley; 1414. Belt; 1415. Fixing block; 1416. Water pipe; 15. Electric drive wheel; 16. Brake wheel; 17. Hanging lug. Detailed Implementation

[0037] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0038] Example 1

[0039] like Figures 1-5 As shown, this embodiment provides a small mobile energy storage cabinet, including a cabinet body 1. Two cabinet doors 2 are rotatably connected to the front end of the cabinet body 1. Multiple battery modules 3 are installed inside the cabinet body 1. A partition plate 4 is fixedly connected to the middle of the inner wall of the cabinet body 1. Multiple metal heat-conducting blocks 5 are installed on the side walls of the partition plate 4. The outer walls of both ends of the battery modules 3 abut against the outer walls of the metal heat-conducting blocks 5. A liquid cooling tank 6 is formed inside the metal heat-conducting blocks 5. Multiple flow guide blocks 7 are fixedly connected inside the liquid cooling tank 6. A return block 8 is fixedly connected to a partition plate 9 at one end. A distribution pipe 10 and a return pipe 11 are respectively connected to a metal heat-conducting block 5. A conveying pipe 12 and a recovery pipe 13 are respectively fixedly connected to a partition plate 4. Multiple distribution pipes 10 are respectively connected to the conveying pipe 12, and multiple return pipes 11 are respectively connected to the recovery pipe 13. A heat dissipation assembly 14 is installed on the rear wall of the cabinet 1. A water tank 1401 is provided on the heat dissipation assembly 14. The conveying pipe 12 and the recovery pipe 13 are respectively connected to the water tank 1401.

[0040] Two adjacent guide blocks 7 are staggered. The other end of the partition plate 9 is fixedly connected to the wall of the liquid cooling tank 6. The two ends of the distribution pipe 10 and the return pipe 11 are respectively connected to the metal heat-conducting blocks 5 on both sides of the partition plate 4. The cooled liquid is received from the water tank 1401 through the distribution pipe 10 and distributed to the liquid cooling tank 6 of each metal heat-conducting block 5 through the delivery pipe 12. After heat exchange is completed in the liquid cooling tank 6, the heated cooling liquid flows into the recovery pipe 13 through the return pipe 11 and finally returns to the water tank 1401.

[0041] The cabinet body 1 is provided with two electric drive wheels 15 symmetrically arranged on one side of the bottom surface of the cabinet body 1, and two brake wheels 16 symmetrically arranged on the other side of the bottom surface of the cabinet body 1; and lug ears 17 are arranged at the four corners of the top surface of the cabinet body 1; and the cabinet body 1 is an energy storage cabinet.

[0042] The water tank 1401 is provided with a water pump 1402 on the top surface through a mounting seat; the water inlet end of the water pump 1402 is communicated with the upper end inside the water tank 1401; the water outlet end of the water pump 1402 is communicated with the conveying pipe 12; the recovery pipe 13 is communicated with the lower end of the water tank 1401; and the bottom surface of the water tank 1401 is communicated with a water pipe 1416 provided with an electric valve.

[0043] Working principle: the metal heat-conducting block 5 arranged in the cabinet body 1 is tightly abutted with the outer walls of the two ends of the battery module 3, so that the heat generated by the battery module 3 during work is effectively transferred to the metal heat-conducting block 5; the liquid cooling groove 6 inside the metal heat-conducting block 5 is filled with cooling liquid; the cooling liquid circulates and flows in the liquid cooling groove 6 through the guidance of the flow guide block 7; and the design of the flow guide block 7 optimizes the flow path of the cooling liquid, so that the cooling liquid fully contacts the inner wall of the metal heat-conducting block 5, thereby improving the heat exchange efficiency.

[0044] When the cooling liquid circulates in the liquid cooling groove 6, the cooled liquid is received from the water tank 1401 through the distribution pipe 10 and is distributed to the liquid cooling groove 6 of each metal heat-conducting block 5 through the conveying pipe 12; after completing heat exchange in the liquid cooling groove 6, the warmed cooling liquid flows into the recovery pipe 13 through the return pipe 11 and finally returns to the water tank 1401; the water tank 1401, as a part of the heat dissipation assembly 14, is responsible for cooling the returned warm liquid to make it become cooling liquid again for recycling, thereby reducing the working temperature of the battery module 3, prolonging the service life of the battery module 3 and improving the safety thereof, and facilitating the long-term use of the cabinet body 1.

[0045] Under the drive of the water pump 1402, the cooling liquid in the water tank 1401 enters the liquid cooling groove 6 of each metal heat-conducting block 5 through the conveying pipe 12; the cooling liquid in the liquid cooling groove 6 is guided by the adjacent and staggered flow guide blocks 7, so that the contact area and time of the cooling liquid with the inner wall of the metal heat-conducting block 5 are increased, thereby improving the heat exchange efficiency; after absorbing the heat transferred by the metal heat-conducting block 5, the cooling liquid is warmed and flows into the recovery pipe 13 through the return pipe 11 and finally returns to the water tank 1401; the warm liquid returned to the water tank 1401 is cooled by the heat dissipation assembly 14 to provide cooling liquid for the next cycle.

[0046] The electric drive wheel 15 and the brake wheel 16 enable the cabinet 1 to move and be fixed, the electric drive wheel 15 provides power to facilitate the movement of the cabinet 1, and the brake wheel 16 fixes the position of the cabinet 1 when needed to ensure the stability of the cabinet 1; the hanging ear 17 on the top surface of the cabinet 1 facilitates the hoisting and transportation of the energy storage cabinet by using a hoisting tool;

[0047] The water pipe 1416 connected to the bottom surface of the water tank 1401 communicates with the outside through an electric valve, which facilitates the filling of external cooling liquid into the water tank 1401, and facilitates the discharge of the cooling liquid in the water tank 1401 to the outside when the electric valve is opened, thereby facilitating the cleaning and maintenance of the water tank 1401.

[0048] Embodiment Two

[0049] As shown in Figures 1-3 , Figures 5-9 on the basis of Embodiment One, the heat dissipation assembly 14 comprises a heat insulation block 1403 installed in the middle of the inner wall of the water tank 1401, a plurality of metal heat dissipation fins 1404 are inserted into the water tank 1401, and the connection between the metal heat dissipation fins 1404 and the water tank 1401 is sealed by a sealing ring; the metal heat dissipation fins 1404 facilitate the heat dissipation of the cooling liquid in the water tank 1401.

[0050] The metal heat dissipation fins 1404 are provided with flow-through holes 1405, adjacent flow-through holes 1405 are arranged in a staggered manner, one end of the metal heat dissipation fins 1404 is located inside the water tank 1401, the other end of the metal heat dissipation fins 1404 is located outside the water tank 1401, a frame 1406 is fixedly connected to the outer wall of the water tank 1401, a plurality of mounting frames 1407 are installed on the frame 1406, a fixed block 1415 is fixedly connected to the middle of the mounting frame 1407, and a fan blade 1408 is rotatably connected to the middle of the fixed block 1415; the first pulley 1410 and the traction wheel 1409 rotate synchronously to drive the fan blade 1408 to rotate, and the rotation of the fan blade 1408 sucks the air between the water tank 1401 and the frame 1406.

[0051] The traction wheel 1409 is sleeved on the central shaft of the fan blade 1408 located in the middle, the first pulley 1410 is sleeved on the central shaft of the fan blade 1408 located at both ends, the output shaft of the water pump 1402 is coaxially connected with a rotating shaft 1411, the rotating shaft 1411 is rotatably connected with a support 1412, and the support 1412 is fixedly connected to the top surface of the frame 1406; the rotating shaft 1411 rotates along the support 1412.

[0052] The second pulley 1413 is sleeved on the rotating shaft 1411, the first pulley 1410 and the second pulley 1413 are respectively driven by the belt 1414 and the groove of the traction wheel 1409; the traction wheel 1409 is frictionally driven by the belt 1414 to rotate the first pulley 1410, so that the first pulley 1410 and the traction wheel 1409 rotate synchronously to drive the fan blade 1408 to rotate.

[0053] In use, the warm liquid returning to the water tank 1401 is cooled by the metal heat sink 1404, the flow-through holes 1405 formed in the metal heat sink 1404 allow the cooling liquid to flow inside, the adjacent flow-through holes 1405 are staggered, increasing the contact area and time of the cooling liquid with the inner wall of the metal heat sink 1404, improving the cooling efficiency, one end of the metal heat sink 1404 is located inside the water tank 1401 and directly contacts the cooling liquid, the other end of the metal heat sink 1404 is located outside the water tank 1401, facilitating the dissipation of heat to the air, achieving rapid cooling of the cooling liquid, improving the cooling efficiency, and ensuring stable operation of the battery module 3 inside the cabinet 1.

[0054] The output shaft of the water pump 1402 drives the second pulley 1413 to rotate through the shaft 1411, and the traction wheel 1409 is synchronously rotated through the belt 1414 friction transmission to the first pulley 1410, so that the first pulley 1410 and the traction wheel 1409 are synchronously rotated to drive the fan blade 1408 to rotate, the rotation of the fan blade 1408 sucks the air between the water tank 1401 and the frame 1406, making the air around the metal heat sink 1404 flow, the flowing air carries away the heat of the metal heat sink 1404, and the metal heat sink 1404 is cooled and further cools the cooling liquid inside the water tank 1401, improving the cooling efficiency of the metal heat sink 1404 and further promoting the cooling of the cooling liquid inside the water tank 1401.

[0055] The above describes only the preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A small mobile energy storage cabinet, comprising a cabinet body (1), two cabinet doors (2) are rotatably connected to the front end of the cabinet body (1), a plurality of battery modules (3) are installed in the cabinet body (1), characterized in that: The middle part of the inner wall of the cabinet body (1) is fixedly connected with a partition plate (4), a plurality of metal heat-conducting blocks (5) are installed on the side wall of the partition plate (4), the outer walls of the two ends of the battery module (3) are respectively abutted with the outer walls of the metal heat-conducting blocks (5), the liquid cooling grooves (6) are formed in the interiors of the metal heat-conducting blocks (5), a plurality of flow guide blocks (7) are fixedly connected in the interiors of the liquid cooling grooves (6), a backflow block (8) is fixedly connected in the interior of the liquid cooling groove (6), one end of the backflow block (8) is fixedly connected with a partition piece (9), the distribution pipes (10) and the backflow pipes (11) are respectively communicated with the metal heat-conducting blocks (5), the conveying pipes (12) and the recovery pipes (13) are respectively fixedly connected on the partition plate (4), a plurality of the distribution pipes (10) are respectively communicated with the conveying pipes (12), a plurality of the backflow pipes (11) are respectively communicated with the recovery pipes (13), the rear wall of the cabinet body (1) is installed with a heat dissipation assembly (14), the water tank (1401) is arranged on the heat dissipation assembly (14), and the conveying pipes (12) and the recovery pipes (13) are respectively communicated with the water tank (1401).

2. The small mobile energy storage cabinet of claim 1, wherein: The two adjacent flow guide blocks (7) are staggered, the other end of the partition piece (9) is fixedly connected with the groove wall of the liquid cooling groove (6), and the two ends of the distribution pipes (10) and the backflow pipes (11) are respectively communicated with the metal heat-conducting blocks (5) on the two sides of the partition plate (4).

3. The small mobile energy storage cabinet of claim 1, wherein: Two electric drive wheels (15) are symmetrically installed on one side of the bottom surface of the cabinet body (1), two brake wheels (16) are symmetrically installed on the other side of the bottom surface of the cabinet body (1), and lug ears (17) are respectively installed at the four corners of the top surface of the cabinet body (1).

4. The small mobile energy storage cabinet of claim 1, wherein: The water pump (1402) is installed on the top surface of the water tank (1401) through the mounting seat, the water inlet end of the water pump (1402) is communicated with the upper end in the interior of the water tank (1401), the water outlet end of the water pump (1402) is communicated with the conveying pipe (12), the recovery pipe (13) is communicated with the lower end of the water tank (1401), and the water pipe (1416) with the electric valve is communicated with the bottom surface of the water tank (1401).

5. The small mobile energy storage cabinet of claim 4, wherein: The heat dissipation assembly (14) comprises a heat insulation block (1403), the heat insulation block (1403) is installed in the middle part of the inner wall of the water tank (1401), and a plurality of metal heat dissipation fins (1404) are inserted into the water tank (1401).

6. The small mobile energy storage cabinet of claim 5, wherein: The connection between the metal heat dissipation fin (1404) and the water tank (1401) is sealed by a sealing ring.

7. The small mobile energy storage cabinet of claim 6, wherein: Flow-through holes (1405) are formed in the metal heat dissipation fin (1404), the adjacent flow-through holes (1405) are staggered, one end of the metal heat dissipation fin (1404) is located in the interior of the water tank (1401), the other end of the metal heat dissipation fin (1404) is located outside the water tank (1401), and a frame (1406) is fixedly connected to the outer wall of the water tank (1401).

8. The small mobile energy storage cabinet of claim 7, wherein: A plurality of mounting frames (1407) are installed on the frame (1406), a fixed block (1415) is fixedly connected in the middle part of the mounting frame (1407), and a fan blade (1408) is rotatably connected in the middle part of the fixed block (1415).

9. The small mobile energy storage cabinet of claim 8, wherein: The central axis of the fan blade (1408) located in the middle is sleeved with a traction wheel (1409), the central axis of the fan blade (1408) located at both ends is respectively sleeved with a first pulley (1410), the output shaft of the water pump (1402) is coaxially connected with a rotating shaft (1411), the rotating shaft (1411) is rotatably connected with a support (1412), and the support (1412) is fixedly connected to the top surface of the frame (1406).

10. The small mobile energy storage cabinet of claim 9, wherein: The rotating shaft (1411) is sleeved with a second pulley (1413), and the first pulley (1410) and the second pulley (1413) are respectively driven by a belt (1414) and a wheel groove of the traction wheel (1409).

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