Waterproof lithium ion battery module with high safety

Abstract

The invention discloses a waterproof lithium ion battery module with high safety, relates to the field of lithium ion batteries, and solves the problem that an existing lithium ion battery module is difficult to continuously dehumidify and prevent water, the waterproof lithium ion battery module comprises a box body and a sealing cover, the inner side of the box body is provided with a plurality of solid-state lithium batteries, and the outer side of the box body is fixedly provided with two cooling fans; two installation boxes are fixedly installed on the inner side of the box body, the outer sides of the two installation boxes are in butt joint with the two cooling fans respectively, and a plurality of water absorption cotton strips are arranged on the inner sides of the installation boxes. The squeezing mechanism is used for squeezing out accumulated water in the water-absorbing cotton slivers, and the squeezing mechanism is mounted on the inner side of the mounting box; through the extrusion mechanism, the water-absorbing cotton slivers adsorb water vapor in airflow, the humidity in the box body is prevented from being too high, the water-absorbing cotton slivers can be repeatedly extruded, accumulated water in the water-absorbing cotton slivers can be conveniently discharged, normal adsorption of the water-absorbing cotton slivers is guaranteed, and therefore the waterproof and damp-proof effects are achieved.

Description

Technical Field

[0001] The present invention relates to the field of lithium-ion batteries, and particularly to a waterproof lithium-ion battery module with high safety. Background Art

[0002] A lithium-ion battery module is a battery unit composed of multiple lithium-ion battery monomers combined in series and parallel. It is usually composed of battery monomers, connectors, a battery management system (BMS), a housing, and a thermal management system, etc. It can store a large amount of electrical energy and can be charged and discharged multiple times. It is widely used in multiple fields and has the advantages of high energy density, long life, and light weight.

[0003] When a lithium-ion battery module is used outdoors, in order to ensure the normal heat dissipation of the battery module, it is necessary to ventilate the inside of the battery module, but this will cause humid air to enter the inside of the battery module, and it is easy to get damp. The existing battery module will install absorbent fillers on the inner side of the box body to adsorb the moisture in the box body, so that the batteries in the box body will not be affected by the moisture. However, as the moisture in the fillers increases, the water content of the fillers will increase, and it is difficult to drain the water in the fillers, which will reduce the adsorption effect on the moisture in the box body. Summary of the Invention

[0004] The purpose of the present invention is to provide a waterproof lithium-ion battery module with high safety to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A waterproof lithium-ion battery module with high safety, comprising: a box body and a sealing cover installed on the top of the box body. A plurality of solid-state lithium batteries are arranged at equal intervals on the inner side of the box body. Two heat dissipation fans symmetrically distributed about the center are fixedly installed on the outer side of the box body. Two mounting boxes symmetrically distributed about the center are fixedly installed on the inner side of the box body. The outer sides of the two mounting boxes are respectively butted against the two heat dissipation fans. A plurality of absorbent cotton strips are arranged at equal intervals on the inner side of the mounting box; further comprising: an extrusion mechanism for squeezing out the accumulated water in the absorbent cotton strips, and the extrusion mechanism is installed on the inner side of the mounting box; a drainage mechanism for leak-proof discharging of the water in the absorbent cotton strips, and the drainage mechanism is installed on the inner side of the mounting box; a diversion mechanism for uniformly dissipating heat from the solid-state lithium batteries, and the diversion mechanism is installed on the inner side of the box body.

[0006] Preferably, the extrusion mechanism includes a storage box disposed outside the absorbent cotton strip. A pressing plate is slidably installed at the bottom of the storage box. The top of the pressing plate is in contact with the bottom of the absorbent cotton strip. A sliding groove for limiting the sliding of the pressing plate is formed at the bottom of the storage box. Two vertically distributed positioning plates are fixedly installed inside the installation box. A first support rod is slidably installed between the two positioning plates. The pressing plate is fixedly installed on the outer side of the first support rod. The first support rod penetrates through the absorbent cotton strip and the storage box. First air inlets corresponding to each other are formed on the outer sides of both the storage box and the installation box. A positioning box is fixedly installed at the bottom of the storage box. The positioning box is fixedly installed inside the installation box. Two symmetrically distributed drain pipes are fixedly installed at the bottom of the positioning box. A second air inlet corresponding to the first air inlet is formed on the outer side of the positioning box. A first push plate is fixedly installed between the two first support rods. A driving rod is rotatably installed inside the installation box. A blocking disc is fixedly installed on the outer side of the driving rod. The outer side of the blocking disc is in contact with the bottom of the first push plate. A first convex block is fixedly installed on the outer side of the blocking disc. The top end of the first support rod is in a T-shaped structure, and a tension spring is fixedly installed between the top end of the first support rod and the positioning plate.

[0007] Preferably, the drainage mechanism includes two baffles symmetrically and slidably installed between the storage box and the positioning box. A third air inlet corresponding to the second air inlet on the positioning box is formed on the outer side of the baffle. A U-shaped plate is fixedly installed between the two baffles. Both ends of the U-shaped plate are slidably installed between the storage box and the positioning box. A second support rod is slidably installed between the two positioning plates. The U-shaped plate is fixedly installed on the outer side of the second support rod. A second push plate is fixedly installed between the two second support rods. The top of the second push plate is in contact with the outer side of the blocking disc. A second convex block is fixedly installed on the outer side of the blocking disc. The second convex block and the first convex block are symmetrically distributed on the outer side of the blocking disc. The top end of the second support rod is in a T-shaped structure, and a spring is fixedly installed between the top end of the second support rod and the positioning plate.

[0008] Preferably, the flow guiding mechanism includes a positioning frame fixedly installed inside the box body. A plurality of heat conducting partition plates are fixedly installed inside the positioning frame at equal intervals. The solid-state lithium battery is installed between two adjacent heat conducting partition plates. A plurality of heat dissipating fins are fixedly installed on the outer side of the heat conducting partition plates at equal intervals. The outer side of the heat dissipating fins is in contact with the outer side of the solid-state lithium battery. Flow guiding holes are formed on the outer side of the heat conducting partition plates. The flow guiding holes on a plurality of heat conducting partition plates are staggered. An opening for installing the installation box is formed on the outer side of the positioning frame. A turntable is rotatably installed inside the installation box. An arc-shaped rack is fixedly installed on the outer side of the turntable. A transmission gear matched with the arc-shaped rack is fixedly installed on the outer side of the driving rod. The shaft rod of the turntable is docked with the driving motor of the heat dissipation fan through a speed change gear box.

[0009] Preferably, a rubber ring is fixedly installed at the bottom of the sealing cover. A sealing groove for limiting and inserting the rubber ring is formed on the top of the box body. The box body is docked with the sealing cover through two bolt ear plates.

[0010] Preferably, drain holes for draining water are formed at the bottom of the pressing plate. The width of the pressing plate is smaller than the width of the water absorption cotton strip.

[0011] Preferably, a flow guiding pipe is arranged inside the installation box. The drain pipe is fixedly installed on the outer side of the flow guiding pipe.

[0012] Preferably, an exhaust cylinder is fixedly installed between the positioning box and the installation box.

[0013] Preferably, the width of the second convex block is greater than the width of the first convex block.

[0014] Preferably, two symmetrically distributed positioning discs are fixedly installed on the outer side of the driving rod. The first push plate and the second push plate are located between the two positioning discs.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the extrusion mechanism of the present invention, the heat dissipation fan dissipates heat from the solid-state lithium battery inside the box body, keeping the air circulation inside the box body. When the air flow passes through the water absorption cotton strip, the water absorption cotton strip adsorbs the water vapor in the air flow, preventing the humidity inside the box body from being too high, and the water absorption cotton strip can be repeatedly squeezed to facilitate the discharge of the accumulated water inside the water absorption cotton strip, ensuring the normal adsorption of the water absorption cotton strip, thereby achieving the effect of waterproof and moisture-proof and ensuring the safety of the operation of the solid-state lithium battery.

[0016] Through the drainage mechanism, when the extrusion plate squeezes the absorbent cotton strip, the baffle can block the first air inlet on the storage box and the second air inlet on the positioning box, achieving the sealing of the storage box, facilitating the drainage of the water in the absorbent cotton strip, realizing the continuous cleaning of the absorbent cotton strip, and thus achieving the effect of rapid drainage.

[0017] Through the diversion mechanism, the heat dissipation fins absorb the heat generated by the solid-state lithium battery, and the airflow pushed by the heat dissipation fan passes through the diversion holes on multiple heat conduction partitions and comes into full contact with the heat dissipation fins, enabling the heat in the box body to be quickly discharged, keeping the solid-state lithium battery in a low-temperature state, and thus achieving the effect of uniform heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the positioning frame and the heat conduction partition in the present invention; Figure 3 is a schematic diagram of the installation box and the positioning plate in the present invention; Figure 4 is a schematic diagram of the absorbent cotton strip and the extrusion plate in the present invention; Figure 5 is a schematic diagram of the positioning box and the storage box in the present invention; Figure 6 is a schematic diagram of the retaining disc and the first push plate in the present invention; Figure 7 is Figure 6 an enlarged schematic diagram of area A in Figure 8 is a schematic diagram of the turntable and the arc-shaped rack in the present invention.

[0019] In the figure: 1, box body; 2, sealing cover; 3, solid-state lithium battery; 4, heat dissipation fan; 5, installation box; 6, absorbent cotton strip; 7, storage box; 8, extrusion plate; 9, positioning plate; 10, first support rod; 11, positioning box; 12, drain pipe; 13, first push plate; 14, drive rod; 15, retaining disc; 16, first convex block; 17, baffle; 18, U-shaped plate; 19, second support rod; 20, second push plate; 21, second convex block; 22, spring; 23, positioning frame; 24, heat conduction partition; 25, heat dissipation fin; 26, arc-shaped rack; 27, transmission gear; 28, speed change gear box; 29, rubber ring; 30, diversion pipe; 31, exhaust pipe; 32, positioning disc; 33, turntable; 34, tension spring. DETAILED DESCRIPTION OF THE INVENTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1: Please refer to Figures 1-8 , a highly secure waterproof lithium-ion battery module shown in the figure, including a box body 1 and a sealing cover 2 installed on the top of the box body 1. A rubber ring 29 is fixedly installed at the bottom of the sealing cover 2, and a sealing groove for the rubber ring 29 to be limited and inserted is opened at the top of the box body 1, improving the sealing performance between the box body 1 and the sealing cover 2. The box body 1 is docked with the sealing cover 2 through two bolt ear plates, facilitating the assembly of the box body 1 and the sealing cover 2. A plurality of solid-state lithium batteries 3 are arranged at equal intervals inside the box body 1, improving the rate of the battery module. Two heat dissipation fans 4 are fixedly installed on the outside of the box body 1 and are symmetrically distributed about the center, dissipating heat from the solid-state lithium batteries 3. Two mounting boxes 5 are fixedly installed on the inside of the box body 1 and are symmetrically distributed about the center. The outside of the two mounting boxes 5 is respectively docked with the two heat dissipation fans 4. One of the heat dissipation fans 4 is used for air intake, and the other heat dissipation fan 4 is used for air exhaust, ensuring the air circulation inside the box body 1 and keeping the inside of the box body 1 in a low-temperature state. A plurality of water-absorbing cotton strips 6 are arranged at equal intervals inside the mounting box 5, used to adsorb water vapor in the airflow, facilitating outdoor use; further including: an extrusion mechanism for squeezing out the accumulated water in the water-absorbing cotton strips 6, and the extrusion mechanism is installed inside the mounting box 5.

[0022] The extrusion mechanism includes a storage box 7 arranged outside the absorbent cotton strip 6. A pressing plate 8 is slidably installed at the bottom of the storage box 7. The top of the pressing plate 8 is in contact with the bottom of the absorbent cotton strip 6. Drainage holes for draining water are opened at the bottom of the pressing plate 8. The width of the pressing plate 8 is smaller than the width of the absorbent cotton strip 6, so that when the pressing plate 8 moves upward, the accumulated water in the absorbent cotton strip 6 can be discharged. A sliding groove for limiting the sliding of the pressing plate 8 is opened at the bottom of the storage box 7, which is convenient for the storage and positioning of the pressing plate 8. Two positioning plates 9 distributed vertically are fixedly installed inside the installation box 5. A first support rod 10 is slidably installed between the two positioning plates 9. The pressing plate 8 is fixedly installed outside the first support rod 10. The first support rod 10 penetrates through the absorbent cotton strip 6 and the storage box 7. Corresponding first air inlets are opened on the outer sides of both the storage box 7 and the installation box 5, so that the cooling fan 4 sends air into the storage box 7 through the first air inlet. The airflow passing through the absorbent cotton strip 6 can adsorb the water vapor in the airflow through the absorbent cotton strip 6. A positioning box 11 is fixedly installed at the bottom of the storage box 7. The positioning box 11 is fixedly installed inside the installation box 5. Two symmetrically distributed drain pipes 12 are fixedly installed at the bottom of the positioning box 11, so that the accumulated water squeezed by the pressing plate 8 can be discharged through the drain pipes 12. A diversion pipe 30 is arranged inside the installation box 5. The drain pipes 12 are fixedly installed outside the diversion pipe 30, so that the water in the drain pipes 12 enters the interior of the installation box 5 through the diversion pipe 30. A drain valve extending to the outside of the box body 1 is installed on the outside of the installation box 5, and the water in the installation box 5 can be discharged by opening the drain valve. A second air inlet corresponding to the first air inlet is opened on the outside of the positioning box 11. An exhaust cylinder 31 is fixedly installed between the positioning box 11 and the installation box 5, which is convenient for air circulation. A first push plate 13 is fixedly installed between the two first support rods 10. A driving rod 14 is rotatably installed inside the installation box 5. A retaining plate 15 is fixedly installed on the outside of the driving rod 14. The outside of the retaining plate 15 is in contact with the bottom of the first push plate 13. A first convex block 16 is fixedly installed on the outside of the retaining plate 15, so that when the driving rod 14 rotates, the first push plate 13 can be pushed to move through the first convex block 16. The first push plate 13 drives a plurality of pressing plates 8 to move synchronously through the first support rod 10. The top end of the first support rod 10 is in a T-shaped structure, and a tension spring 34 is fixedly installed between the top end of the first support rod 10 and the positioning plate 9, which is convenient for the first support rod 10 to reset. Using the elasticity of the tension spring 34, the first push plate 13 is attached to the outside of the retaining plate 15.

[0023] Embodiment 2: Please refer to Figures 3-7, this embodiment further elaborates on the first embodiment. The drainage mechanism shown in the figure includes two baffles 17 that are symmetrically and slidably installed between the storage box 7 and the positioning box 11. A third air inlet corresponding to the second air inlet on the positioning box 11 is provided on the outer side of the baffle 17. When the baffle 17 moves along between the positioning box 11 and the storage box 7, it can block the first air inlet on the storage box 7, facilitating the extrusion plate 8 to extrude the accumulated water in the water-absorbing cotton strip 6. A U-shaped plate 18 is fixedly installed between the two baffles 17. Both ends of the U-shaped plate 18 are slidably installed between the storage box 7 and the positioning box 11, improving the smooth movement of the baffle 17. A second support rod 19 is slidably installed between the two positioning plates 9. The U-shaped plate 18 is fixedly installed on the outer side of the second support rod 19. When the second support rod 19 moves, it can drive the U-shaped plate 18 to move synchronously. A second push plate 20 is fixedly installed between the two second support rods 19. The top of the second push plate 20 is in contact with the outer side of the retaining plate 15. A second convex block 21 is fixedly installed on the outer side of the retaining plate 15. The second convex block 21 and the first convex block 16 are symmetrically distributed on the outer side of the retaining plate 15. When the retaining plate 15 drives the second convex block 21 to contact the second push plate 20, it can push the second push plate 20 downward. The second push plate 20 can then drive the baffle 17 on the U-shaped plate 18 to move through the second support rod 19. The width of the second convex block 21 is greater than the width of the first convex block 16, enabling the second convex block 21 to preferentially push the second push plate 20 to move. The baffle 17 can then seal the first air inlet on the storage box 7 before the extrusion plate 8 squeezes the water-absorbing cotton strip 6. Two symmetrically distributed positioning disks 32 are fixedly installed on the outer side of the drive rod 14. The first push plate 13 and the second push plate 20 are located between the two positioning disks 32, improving the smooth movement of the first push plate 13 and the second push plate 20. The top end of the second support rod 19 is in a T-shaped structure, and a spring 22 is fixedly installed between the top end of the second support rod 19 and the positioning plate 9. Utilizing the elasticity of the spring 22, the second push plate 20 is attached to the outer side of the retaining plate 15.

[0024] Embodiment Three: Please refer to Figure 1 , Figure 2 and Figure 8, this embodiment further illustrates other embodiments. The flow guiding mechanism in the figure includes a positioning frame 23 fixedly installed inside the box body 1. A plurality of heat conducting partitions 24 are fixedly installed inside the positioning frame 23 at equal intervals. The solid-state lithium battery 3 is installed between two adjacent heat conducting partitions 24. A plurality of heat dissipation fins 25 are fixedly installed on the outer side of the heat conducting partition 24 at equal intervals. The outer side of the heat dissipation fin 25 is in contact with the outer side of the solid-state lithium battery 3, so that the heat dissipation fin 25 absorbs the temperature generated during the operation of the solid-state lithium battery 3. Flow guiding holes are provided on the outer side of the heat conducting partition 24. The flow guiding holes on a plurality of heat conducting partitions 24 are staggered, so that the airflow generated by the cooling fan 4 can move through a plurality of flow guiding holes, fully contact a plurality of solid-state lithium batteries 3, and take away the heat on the heat conducting partition 24, realizing uniform heat dissipation of a plurality of solid-state lithium batteries 3, keeping the inside of the box body 1 in a low-temperature state, ensuring the safety of the operation of the solid-state lithium battery 3. An opening for installing the installation box 5 is provided on the outer side of the positioning frame 23, facilitating the airflow to enter the positioning frame 23. A turntable 33 is rotatably installed inside the installation box 5. An arc-shaped rack 26 is fixedly installed on the outer side of the turntable 33. A transmission gear 27 that cooperates with the arc-shaped rack 26 is fixedly installed on the outer side of the driving rod 14. When the turntable 33 rotates, the transmission gear 27 can be driven to rotate one week through the arc-shaped rack 26. The shaft of the turntable 33 is docked with the driving motor of the cooling fan 4 through a speed change gearbox 28. Both the cooling fan 4 and the speed change gearbox 28 are prior arts. When the cooling fan 4 operates, the turntable 33 can be driven to rotate through the speed change gearbox 28, and the rotation speed of the cooling fan 4 is greater than the rotation speed of the turntable 33, realizing intermittent rotation of the transmission gear 27.

[0025] Working principle: First, the staff sequentially installs multiple solid-state lithium batteries 3 between adjacent heat-conducting partitions 24, making the heat dissipation fins 25 contact the outer sides of the solid-state lithium batteries 3. Then, the sealing cover 2 is installed on the top of the box body 1, and two cooling fans 4 are started. One of the cooling fans 4 inputs the outside air into the box body 1. The air flow generated by this cooling fan 4 enters the positioning frame 23 through the opening on the positioning frame 23 and fully contacts the multiple solid-state lithium batteries 3 along the diversion holes on the multiple heat-conducting partitions 24. The temperature generated by the solid-state lithium batteries 3 can be conducted to the heat dissipation fins 25 and absorb the heat on the heat dissipation fins 25, and then be discharged from the other cooling fan 4, realizing uniform heat dissipation for the multiple solid-state lithium batteries 3 and keeping the solid-state lithium batteries 3 in a low-temperature state. At the same time, the air flow enters the storage box 7 through the first air inlet on the installation box 5 and the second air inlet on the positioning box 11, enabling the water-absorbing cotton strip 6 in the storage box 7 to adsorb the water vapor in the air flow, and then enters the positioning frame 23 from the storage box 7 to prevent the solid-state lithium batteries 3 from getting damp. Moreover, when the cooling fan 4 operates, the drive motor of the cooling fan 4 drives the turntable 33 to rotate through the speed-changing gearbox 28. When the arc-shaped rack 26 on the turntable 33 contacts the transmission gear 27 on the drive rod 14, the arc-shaped rack 26 drives the drive rod 14 to rotate, and the drive rod 14 drives the blocking disc 15 to rotate, making the second convex block 21 and the first convex block 16 on the blocking disc 15 respectively push the second push plate 20 and the first push plate 13 to move. Since the width of the second convex block 21 is greater than the width of the first convex block 16, the second push plate 20 moves prior to the first push plate 13. The second push plate 20 pulls the multiple U-shaped plates 18 to move downward through two second support rods 19. Among them, the second support rod 19 compresses the spring 22, enabling the U-shaped plate 18 to drive the two baffle plates 17 to seal the first air inlet on the storage box 7. At this time, the first push plate 13 drives the multiple pressing plates 8 to move synchronously through two first support rods 10. Among them, the first support rod 10 stretches the tension spring 34, enabling the pressing plate 8 to press the water-absorbing cotton strip 6. The accumulated water in the water-absorbing cotton strip 6 can be discharged into the drain pipe 12 and then discharged into the installation box 5 through the diversion pipe 30. As the blocking disc 15 rotates, when the first convex block 16 and the second convex block 21 respectively move away from the first push plate 13 and the second push plate 20, the first support rod 10 and the second support rod 19 respectively utilize the resilience of the tension spring 34 and the spring 22 to make the first push plate 13 and the second push plate 20 contact the blocking disc 15 again, and the pressing plate 8 can release the water-absorbing cotton strip 6. Moreover, the second push plate 20 drives the baffle plate 17 to reset, aligning the third air inlet on the baffle plate 17 with the first air inlet on the storage box 7. Thus, intermittent extrusion drainage of the water-absorbing cotton strip 6 is realized, enabling the water-absorbing cotton strip 6 to continuously adsorb the water vapor in the air flow, thereby achieving the effect of waterproof and moisture-proof and improving the operating safety of the solid-state lithium batteries 3.

[0026] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly safe waterproof lithium-ion battery module, characterized in that: include: A box body (1) and a sealing cover (2), wherein a plurality of solid-state lithium batteries (3) are arranged on the inner side of the box body (1), two cooling fans (4) are fixedly installed on the outer side of the box body (1), two installation boxes (5) are fixedly installed on the inner side of the box body (1), the outer sides of the two installation boxes (5) are respectively connected to the two cooling fans (4), and the inner side of the installation boxes (5) is provided with a plurality of absorbent cotton strips (6); Also includes: A squeezing mechanism, used for squeezing out the accumulated water in the absorbent cotton strip (6), the squeezing mechanism being installed on the inner side of the installation box (5); A drainage mechanism, used for draining water in the absorbent cotton strip (6) in a leak-proof manner, the drainage mechanism being installed on the inner side of the installation box (5); A flow guiding mechanism is used to uniformly dissipate heat from the solid-state lithium battery (3), and the flow guiding mechanism is installed on the inner side of the box body (1).

2. A highly safe waterproof lithium-ion battery module according to claim 1, characterized in that: The squeezing mechanism comprises a storage box (7) arranged on the outside of the absorbent cotton strip (6), a squeezing plate (8) is slidably mounted on the bottom of the storage box (7), two positioning plates (9) are fixedly mounted on the inner side of the installation box (5), a first support rod (10) is slidably mounted between the two positioning plates (9), the squeezing plate (8) is fixedly mounted on the outside of the first support rod (10), the outside of the storage box (7) and the outside of the installation box (5) are both provided with corresponding first air inlets, a positioning box (11) is fixedly mounted on the bottom of the storage box (7), and the positioning box (11) is mounted on the inside of the installation box (5). Two drainage pipes (12) are installed at the bottom of the positioning box (11) on the inner side of the installation box (5), a second air inlet corresponding to the first air inlet is opened on the outer side of the positioning box (11), a first push plate (13) is fixedly installed between the two first support rods (10), a driving rod (14) is rotatably installed on the inner side of the installation box (5), a baffle (15) is fixedly installed on the outer side of the driving rod (14), a first protrusion (16) is fixedly installed on the outer side of the baffle (15), and a tension spring (34) is fixedly installed between the top end of the first support rod (10) and the positioning plate (9).

3. A highly safe waterproof lithium-ion battery module according to claim 2, characterized in that: The drainage mechanism comprises two baffles (17) slidably mounted between the storage box (7) and the positioning box (11); a third air inlet corresponding to the second air inlet on the positioning box (11) is opened on the outer side of the baffle (17); a U-shaped plate (18) is fixedly mounted between the two baffles (17); both ends of the U-shaped plate (18) are slidably mounted between the storage box (7) and the positioning box (11); a second support rod (19) is slidably mounted between the two positioning plates (9); the U-shaped plate (18) is fixedly mounted on the outer side of the second support rod (19); a second push plate (20) is fixedly mounted between the two second support rods (19); a second protrusion (21) is fixedly mounted on the outer side of the baffle plate (15); and a spring (22) is fixedly mounted between the top end of the second support rod (19) and the positioning plate (9).

4. A highly safe waterproof lithium-ion battery module according to claim 3, characterized in that: The flow guiding mechanism comprises a positioning frame (23) mounted on the inner side of the box body (1), a plurality of heat-conducting baffles (24) are fixedly mounted on the inner side of the positioning frame (23), the solid-state lithium battery (3) is mounted between two adjacent heat-conducting baffles (24), a plurality of heat-dissipating fins (25) are fixedly mounted on the outer side of the heat-conducting baffles (24), a flow guiding hole is opened on the outer side of the heat-conducting baffles (24), and the flow guiding holes on the plurality of heat-conducting baffles (24) are staggeredly distributed, an opening is opened on the outer side of the positioning frame (23) for installing the installation box (5), a rotating disk (33) is rotatably mounted on the inner side of the installation box (5), an arc-shaped rack (26) is fixedly mounted on the outer side of the rotating disk (33), a transmission gear (27) matched with the arc-shaped rack (26) is fixedly mounted on the outer side of the driving rod (14), and the shaft of the rotating disk (33) is connected to the driving motor of the heat dissipating fan (4) through a speed change gear box (28).

5. A highly safe waterproof lithium-ion battery module according to claim 1, characterized in that: A rubber ring (29) is fixedly mounted on the bottom of the sealing cover (2), and a sealing groove for the rubber ring (29) to be inserted in a limited position is provided on the top of the box body (1).

6. A highly safe waterproof lithium-ion battery module according to claim 2, characterized in that: A drainage hole for drainage is provided at the bottom of the squeezing plate (8), and the width of the squeezing plate (8) is smaller than the width of the absorbent cotton strip (6).

7. A highly safe waterproof lithium-ion battery module according to claim 2, characterized in that: A flow guide pipe (30) is provided on the inner side of the installation box (5), and the drainage pipe (12) is fixedly installed on the outer side of the flow guide pipe (30).

8. A highly safe waterproof lithium-ion battery module according to claim 2, characterized in that: An exhaust pipe (31) is fixedly installed between the positioning box (11) and the installation box (5).

9. A highly safe waterproof lithium-ion battery module according to claim 3, characterized in that: The width of the second protrusion (21) is greater than the width of the first protrusion (16).

10. A highly safe waterproof lithium-ion battery module according to claim 3, characterized in that: Two symmetrically distributed positioning plates (32) are fixedly mounted on the outer side of the driving rod (14), and the first push plate (13) and the second push plate (20) are located between the two positioning plates (32).

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