Liquid-cooled lithium battery storage device

Abstract

The invention discloses a liquid-cooled lithium battery storage device, which relates to the technical field of lithium battery storage, and comprises a storage box and a battery placed in the storage box, and the heat dissipation part is mounted in the storage box, transfers heat on the battery and plays a role in heat dissipation, the heat dissipation part comprises a circulating water path and a driving assembly, and water in the circulating water path is driven by the driving assembly to circulate so as to take away heat generated on the battery in the storage box. The bicycle has the advantages that different degrees of circulating water cooling heat dissipation is conducted on the battery through wind energy generated during riding, the heat dissipation efficiency of the battery is effectively improved, meanwhile, part of wind energy can be stored, the wind energy is converted into elastic potential energy of the volute spiral spring, the elastic potential energy is released when riding is stopped, and the energy-saving effect is achieved. Water cooling heat dissipation can be carried out on the battery in the riding process, heat dissipation can be carried out on the battery for a period of time when riding is stopped, and the heat dissipation efficiency of the battery is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery storage, and in particular to a liquid-cooled lithium battery storage device. Background Art

[0002] Lithium battery is a type of battery with lithium as the core. It is widely used in various electronic devices and electric vehicles due to its advantages such as high energy density, long cycle life and low self-discharge rate. Currently, most electric vehicles on the market use lithium batteries as the driving source. Lithium batteries will generate a lot of heat during operation. The lithium batteries on electric vehicles are directly stored in the battery box, and the wind generated by riding dissipates the heat of the lithium batteries, and the heat dissipation effect is poor.

[0003] In order to solve the problem of poor heat dissipation of electric vehicle batteries, announcement number CN209641698U discloses an electric vehicle battery heat dissipation box, which includes a frame, a cover plate and a bottom plate made of heat-conductive material, the cover plate and the bottom plate are respectively arranged at both ends of the frame, the electric vehicle battery heat dissipation box also includes a first radiator arranged on the outer surface of the side wall of the frame and a second radiator arranged at an end of the frame away from the cover plate, an inner cavity for accommodating the battery is formed between the cover plate, the bottom plate and the second radiator, the cover plate is used to thermally contact one side of the battery, and the bottom plate and the second radiator are used to thermally contact the other side of the battery.

[0004] By arranging a frame body, a cover plate and a bottom plate made of heat-conducting materials, the cover plate, the bottom plate and the second radiator are respectively in thermal contact with the battery. When the battery generates heat, the heat can be directly discharged. The second radiator is arranged on the side of the frame body away from the cover plate, thereby enhancing the heat dissipation effect of the box body. At the same time, the first radiator is arranged on the side wall of the frame body, thereby greatly increasing the contact area of ​​the heat dissipation box and the air for heat exchange, thereby improving the heat dissipation effect.

[0005] However, during actual use, the electric vehicle battery cooling box only accelerates the heat dissipation by increasing the contact area between the cooling fins and the air. This heat dissipation method is still air cooling. Although the heat dissipation effect is improved to a certain extent, the heat dissipation effect is still poor.

[0006] Therefore, a novel liquid-cooled lithium battery storage device can be used to solve the shortcomings of the prior art. Summary of the invention

[0007] The purpose of the present invention is to solve the problem of poor heat dissipation effect in the prior art and to propose a liquid-cooled lithium battery storage device.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A liquid-cooled lithium battery storage device comprises a storage box and a battery placed in the storage box;

[0010] The heat dissipation unit is installed inside the storage box to transfer the heat from the battery and play a role in heat dissipation. The heat dissipation unit includes a circulating water circuit and a driving component. The driving component drives the water circulation in the circulating water circuit to take away the heat generated by the battery in the storage box.

[0011] The energy conversion unit converts wind energy into kinetic energy for driving the operation of the driving component. The energy conversion unit includes a conversion component, an adjustment component and an energy storage component. The conversion component is used to convert wind energy, the adjustment component is used to adjust the wind energy conversion rate of the conversion component, and the energy storage component is used to partially store the kinetic energy generated by the conversion component for driving the operation of the driving component when the wind energy disappears.

[0012] Preferably, the circulating water circuit includes a water tank fixedly mounted at the bottom of the storage tank, the interior of the water tank is divided into a plurality of chambers by a plurality of partitions, two guide plates are fixedly mounted in each of the chambers, a plurality of heat dissipation elbows are fixedly connected to the water tank, one end of each of the heat dissipation elbows is located above a corresponding one of the guide plates, and the other end of each of the heat dissipation elbows extends into a corresponding below another guide plate, a plurality of heat-conducting rods are fixedly penetrated and connected to each of the heat dissipation elbows, a heat-conducting metal box matching the corresponding battery is fixedly mounted on the matching multiple heat-conducting rods, a plurality of swirl mechanisms matching the corresponding heat-conducting rods are installed in each of the heat dissipation elbows, and a plurality of heat dissipation fins are fixedly mounted at the bottom of the water tank.

[0013] Preferably, the swirl mechanism comprises a heat-conducting ring fixedly mounted inside the heat dissipation elbow, the heat-conducting ring is fixedly connected to the heat-conducting rod, and a turbine is fixedly mounted inside the heat-conducting ring.

[0014] Preferably, the driving assembly includes a compression cylinder fixedly installed inside the water tank, a piston disk is sealingly and slidably installed inside the compression cylinder, a one-way tube 1 and a one-way tube 2 are fixedly connected to the compression cylinder, the one-way tube 1 is fixedly connected to the other end of the heat dissipation elbow, and the one-way tube 2 is located below another guide plate inside the water tank.

[0015] Preferably, the conversion assembly includes a ventilation hood fixedly mounted on the outside of the storage box, a protective cover fixedly mounted on the ventilation hood, a dust net fixedly mounted on the protective cover, a shaft rod 2 rotatably mounted on the storage box via a support frame, a turbofan fixedly mounted on the shaft rod 2, the turbofan is located inside the protective cover, the shaft rod 2 penetrates the storage box and extends into the water tank, and the shaft rod 2 is rotatably connected to the piston disk via a camshaft.

[0016] Preferably, the adjustment assembly includes a heat transfer disk rotatably mounted on the second shaft, a sealing disk cooperating with the ventilation hood is slidably mounted on the ventilation hood, a memory alloy spring is fixedly mounted between the sealing disk and the heat transfer disk, a heat transfer rod is fixedly mounted on the heat transfer disk, and the heat transfer rod passes through the storage box and extends into the water tank.

[0017] Preferably, the energy storage assembly comprises a shaft rod 1 rotatably mounted on the storage box, the shaft rod 1 penetrates the storage box and extends into the water tank, the shaft rod 1 is fixedly connected to the camshaft, the rotation axes of the shaft rod 1 and the shaft rod 2 are located on the same horizontal line, a gear is fixedly mounted on the shaft rod 1, the gear is located outside the storage box, a pillar is rotatably mounted outside the storage box, a disc is fixedly mounted on the pillar, a plurality of meshing teeth matching the gear are slidably mounted on the disc, and a control mechanism is installed between each of the meshing teeth and the disc;

[0018] A spiral spring is fixedly mounted on the pillar, a cover body matching with the gear and the spiral spring is fixedly mounted outside the storage box, one end of the spiral spring away from the pillar is fixedly connected to the cover body, and a turbulence mechanism is installed between the shaft rod and the guide plate located at the top.

[0019] Preferably, the control mechanism comprises a receiving hole formed on the disc, the meshing teeth slide in the receiving hole, and two elastic telescopic rods are fixedly mounted between the meshing teeth and the disc.

[0020] Preferably, the turbulence mechanism includes a pressure ring fixedly mounted on the guide plate, a fixed sleeve fixedly mounted on the shaft rod, a ring rotatably and slidably mounted on the shaft rod, a push plate rotatably mounted on the ring, the push plate and the guide plate are slidably connected, a spring sheet matching the pressure ring is commonly installed between the push plate and the ring, and the spring sheet and the fixed sleeve and the push plate are all rotatably connected.

[0021] Preferably, an insulation box is provided between the heat-conducting metal box and the storage box, the heat-conducting rod and the heat-conducting plate are wrapped with insulation cotton on the outside, and the portion of the heat-conducting rod extending into the water tank is exposed.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. When the liquid-cooled lithium battery storage device is used, the batteries stored in the storage box can be water-cooled by setting a water tank, a heat dissipation elbow, a hydraulic cylinder, and a piston disc. The heat dissipation efficiency is high. At the same time, the turbofan can be driven to rotate during riding to provide kinetic energy for the water in the water tank, so that the water in the water tank circulates and realizes circulating water heat dissipation. Not only air cooling but also water cooling can be performed. In addition, wind energy is converted into mechanical kinetic energy without adding an additional power source, which is energy-saving and environmentally friendly.

[0024] 2. When the liquid-cooled lithium battery storage device is used, a turbine is arranged and fixed inside the heat dissipation elbow, which can drive the water in the heat dissipation elbow to rotate during water circulation, so that the water in the heat dissipation elbow generates a vortex. At the same time, the pressure ring, spring sheet and fixed sleeve are used to make the water in the water tank turbulent. The rotation and turbulence can break the boundary layer of the water flow and enhance the heat transfer. Compared with laminar flow, turbulence can more effectively take away heat from the heat source and improve the cooling efficiency.

[0025] 3. When the liquid-cooled lithium battery storage device is used, the memory metal spring, the sealing disk and the ventilation cover are provided, and the ventilation volume passing through the turbofan can be automatically adjusted according to the heat in the battery water, so as to achieve the purpose of automatically adjusting the turbofan speed. At the same time, in conjunction with the spring coil, gear, disc and meshing teeth, the kinetic energy generated by the rotation of the turbofan can be partially stored, and the stored energy can be utilized when the turbofan stops rotating, which can not only dissipate heat during the operation of the electric vehicle, but also continue to dissipate heat for a period of time after the electric vehicle stops.

[0026] In summary, the present invention utilizes the wind energy during riding to perform circulating water cooling on the battery to different degrees, effectively improving the heat dissipation efficiency of the battery. At the same time, it can also store part of the wind energy, convert the wind energy into elastic potential energy of the spiral spring, and release the elastic potential energy when riding stops. Not only can the battery be water-cooled during riding, but the battery can also be cooled for a period of time when riding stops, further improving the heat dissipation efficiency of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0028] Figure 1 This is a structural schematic diagram of a liquid-cooled lithium battery storage device proposed by the present invention;

[0029] Figure 2 for Figure 1 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0030] Figure 3 for Figure 1 Detailed diagram of the structure behind the battery, protective cover, dust screen and ventilation cover;

[0031] Figure 4 for Figure 2 Detailed schematic diagram of the structure after the cover is removed and rotated to a certain angle;

[0032] Figure 5 for Figure 4 Detailed schematic diagram of the structure after removing the storage box and the insulation box;

[0033] Figure 6 for Figure 5 A schematic detailed view of the perspective plan structure along one of the angles;

[0034] Figure 7 for Figure 5 Detailed schematic diagram of the structure after removing the water tank and the heat-conducting metal box;

[0035] Figure 8 for Figure 7 A schematic structural detail diagram of one of the turbofans and one of the heat dissipation elbows and their surrounding components;

[0036] Fig. 9 for Figure 7 A schematic diagram of the cross-sectional enlarged structure of the middle heat dissipation elbow;

[0037] Fig.10 for Figure 8 A detailed diagram of the enlarged structure of the middle gear and the disc;

[0038] Fig.11 for Fig.10 Detailed schematic diagram of the planar structure of the middle disc and meshing teeth;

[0039] Fig.12 for Fig.11 Detailed schematic diagram of the three-dimensional structure along the AA section;

[0040] Fig.13 for Figure 8 A detailed diagram showing the enlarged structure of the middle pressure ring and its surrounding matching parts;

[0041] Fig.14 for Figure 8 An enlarged structural schematic detail diagram of the middle compression cylinder and its surrounding matching parts;

[0042] Fig.15 for Figure 1 Enlarged structural schematic details of the middle protective cover, dust screen and ventilation cover;

[0043] Fig.16 for Fig.15 A schematic detailed view of the plan structure along one of the angles;

[0044] Fig.17 for Fig.16 Detailed schematic diagram of the three-dimensional structure along the BB section;

[0045] Fig.18 for Fig.17 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0046] Fig.19 for Figure 1 Detailed schematic diagram of the end face structure of the heat dissipation fin.

[0047] In the figure: 1 storage box, 2 battery, 3 protective cover, 4 dust net, 5 ventilation cover, 6 cooling fins, 7 cover body, 8 turbofan, 9 insulation box, 10 heat conductive metal box, 11 scroll spring, 12 gear, 13 disc, 14 meshing teeth, 15 elastic telescopic rod, 16 water tank, 17 heat dissipation elbow, 18 heat conductive rod, 19 guide plate, 20 partition, 21 shaft rod 1, 22 shaft rod 2, 23 support frame, 24 compression cylinder, 25 pressure ring, 26 heat conductive ring, 27 turbine, 28 push plate, 29 fixed sleeve, 30 spring sheet, 31 camshaft, 32 one-way pipe 1, 33 one-way pipe 2, 34 piston disc, 35 heat conductive rod, 36 sealing disc, 37 heat conductive disc, 38 memory alloy spring. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Example 1: Reference Figure 1-Figure 9 , Fig.14 , Fig.19 A liquid-cooled lithium battery storage device includes a storage box 1 and a battery 2 placed in the storage box 1; a heat dissipation unit is installed inside the storage box 1 to transfer heat from the battery 2 to dissipate heat. The heat dissipation unit includes a circulating water circuit and a driving component. The driving component drives water circulation in the circulating water circuit to take away the heat generated by the battery 2 in the storage box 1.

[0050] The circulating water circuit includes a water tank 16 fixedly installed at the bottom of the storage tank 1. The interior of the water tank 16 is divided into a plurality of chambers by a plurality of partitions 20. Two guide plates 19 are fixedly installed in each chamber. A plurality of heat dissipation elbows 17 are fixedly connected to the water tank 16. One end of each heat dissipation elbow 17 is located above the corresponding one of the guide plates 19, and the other end of each heat dissipation elbow 17 extends into the bottom of the corresponding other guide plate 19. A plurality of heat-conducting rods 18 are fixedly penetrated and connected to each heat dissipation elbow 17. A heat-conducting metal box 10 matching the corresponding battery 2 is fixedly installed on the matching multiple heat-conducting rods 18. A plurality of swirl mechanisms matching the corresponding heat-conducting rods 18 are installed in each heat dissipation elbow 17. A plurality of heat dissipation fins 6 are fixedly installed at the bottom of the water tank 16.

[0051] The purpose of dividing the water tank 16 into multiple chambers is to dissipate heat for each battery 2 individually, shorten the water circulation path, and allow the water to take away the heat from the battery 2 more quickly, thereby effectively improving the heat dissipation efficiency.

[0052] The heat generated by the battery 2 will be absorbed by the heat-conducting metal box 10, and then conducted to the water in the heat dissipation elbow 17 through the heat-conducting rods 18, and the heat will be taken away by the flow of water. The purpose of using multiple heat-conducting rods 18 is to transfer heat to multiple points on the heat-conducting metal box 10 to improve the heat transfer efficiency.

[0053] The purpose of setting the guide plate 19 is to make the water in the water tank 16 flow in an S shape, increase the contact area between the water and the guide plate 19 and the water tank 16, so that the heat in the water is dissipated faster; the heat dissipation fins 6 are provided with through grooves and semicircular grooves, which can increase the contact area between the heat dissipation fins 6 and the air, thereby achieving the purpose of faster heat dissipation (the end surface shape of the heat dissipation fins 6 is as shown in FIG. Fig.19 shown).

[0054] The swirl mechanism includes a heat-conducting ring 26 fixedly installed inside the heat dissipation elbow 17, the heat-conducting ring 26 is fixedly connected to the heat-conducting rod 18, and a turbine 27 is fixedly installed inside the heat-conducting ring 26. As water flows in the heat dissipation elbow 17, the water will pass through the turbine 27, and under the action of the turbine 27, the water will rotate and generate a vortex, thereby breaking the boundary layer of the water flow and enhancing the heat transfer.

[0055] The rotating water flow helps to distribute the heat more evenly in the heat exchanger, which improves the overall heat transfer performance of the heat exchanger. This means that the cooling system is able to transfer heat to the cooling device more efficiently.

[0056] Benefits of eddy current:

[0057] Reduces hotspot formation: Rotating water flow can help avoid local overheating and the formation of hotspots because the moving water carries away the locally generated heat and prevents certain areas from becoming too hot.

[0058] Improved mixing of coolant: In the cooling system, the rotating water flow helps mix the coolant and ensures uniform coolant temperature. This keeps the coolant at a consistent temperature throughout the system, improving cooling effectiveness.

[0059] Increased Flow: Spinning improves water flow by reducing resistance to flow, allowing coolant to move faster through the system, increasing overall cooling capacity.

[0060] Reduces deposit and air bubble effects: The rotating water flow can help prevent deposits from accumulating in the pipes and also helps to remove air bubbles, which can reduce the negative effects on cooling system performance.

[0061] In general, the rotating water flow in the pipe helps improve cooling efficiency, maintain temperature uniformity, and reduce local overheating, making the entire cooling system more efficient and reliable.

[0062] The driving assembly includes a compression cylinder 24 fixedly installed inside the water tank 16, a piston disk 34 is sealingly and slidably installed inside the compression cylinder 24, a one-way pipe 1 32 and a one-way pipe 2 33 are fixedly connected to the compression cylinder 24, the one-way pipe 1 32 is fixedly connected to the other end of the heat dissipation elbow 17, and the one-way pipe 2 33 is located below another guide plate 19 inside the water tank 16.

[0063] The piston disc 34 moves back and forth in the compression cylinder 24, and the water in the water tank 16 is sucked into the compression cylinder 24 through the one-way pipe 2 33, and then injected into the heat dissipation elbow 17 through the one-way pipe 1 32, so that the water pressure in the heat dissipation elbow 17 increases, thereby driving the water in the heat dissipation elbow 17 to flow (the water tank 16 is full of water, and the water level in the heat dissipation elbow 17 is higher than the upper bent part of the heat dissipation elbow 17, which can ensure that the pressure generated by the movement of the piston disc 34 can drive the water in the heat dissipation elbow 17 to flow).

[0064] Embodiment 2: This embodiment is different from the embodiment 1 in that: Figure 1-Figure 8 , Figure 10-13 , Figure 15-18 The energy conversion unit converts wind energy into kinetic energy for driving the operation of the driving component. The energy conversion unit includes a conversion component, a regulating component and an energy storage component. The conversion component is used to convert wind energy. The regulating component is used to adjust the wind energy conversion rate of the conversion component. The energy storage component is used to partially store the kinetic energy generated by the conversion component, and is used to drive the operation of the driving component when the wind energy disappears.

[0065] The conversion assembly includes a ventilation hood 5 fixedly mounted on the outside of the storage box 1, a protective cover 3 fixedly mounted on the ventilation hood 5, a dust screen 4 fixedly mounted on the protective cover 3, a shaft rod 22 rotatably mounted on the storage box 1 through a support frame 23, a turbofan 8 fixedly mounted on the shaft rod 22, the turbofan 8 is located inside the protective cover 3, the shaft rod 22 penetrates the storage box 1 and extends into the water tank 16, and the shaft rod 22 is rotatably connected to the piston disk 34 through a camshaft 31.

[0066] During the riding of the electric vehicle, the wind resistance of riding will enter the protective cover 3 through the dustproof net 4, and the dust in the wind will be blocked by the dustproof net 4. The wind entering the protective cover 3 will drive the turbofan 8 to rotate, thereby driving the shaft rod 22 to rotate. The rotation of the shaft rod 22 will drive the camshaft 31 to rotate, thereby driving the piston disk 34 to move up and down. The wind in the protective cover 3 will pass through the turbofan 8 and be discharged from the ventilation hood 5 behind the turbofan 8 (the ventilation hood 5 is a cover with multiple holes and is made of metal).

[0067] The adjustment assembly includes a heat conduction disk 37 rotatably mounted on the shaft 22, a sealing disk 36 matching the ventilation hood 5 is slidably mounted on the ventilation hood 5, a memory alloy spring 38 is fixedly mounted between the sealing disk 36 and the heat conduction disk 37, a heat conduction rod 35 is fixedly mounted on the heat conduction disk 37, and the heat conduction rod 35 passes through the storage box 1 and extends into the water tank 16.

[0068] In the initial state (battery 2 generates less heat), the water temperature in water tank 16 is low, and the heat conducted from heat conduction rod 35 to heat conduction plate 37 is small, which will not trigger the memory alloy spring 38 to retract (it was found in the research work that within a certain temperature range higher than room temperature, a nickel-titanium alloy wire was burned into a spring, and then it was straightened or cast into a square, triangle or other shape in cold water, and then placed in hot water above 40°C, the alloy wire will return to its original spring shape. Later, it was discovered that some other alloys also have similar functions. This type of alloy is called shape memory alloy. Each shape memory alloy composed of certain elements in a certain weight ratio has a transition temperature; above this temperature, the alloy is processed into a certain shape, It is then cooled to below the transition temperature, its shape is artificially changed, and then heated to above the transition temperature, the alloy will automatically return to the shape originally processed above the transition temperature). Therefore, the memory alloy spring 38 is in an extended state at room temperature. Once it is heated to a specific temperature, it will automatically shrink, thereby driving the blocking disk 36 to move to the side away from the turbofan 8. The higher the temperature, the greater the shrinkage of the memory alloy spring 38, the greater the displacement of the blocking disk 36, and the blocking disk 36 fits the inner wall of the ventilation hood 5. As the blocking disk 36 moves, there are more holes for air to pass through, and the ventilation volume is greater. At this time, the rotation speed of the turbofan 8 is also faster. The heat dissipation efficiency can be automatically adjusted according to the temperature of the different degrees. The higher the temperature, the faster the water flow and the higher the heat dissipation efficiency.

[0069] The energy storage assembly includes a shaft rod 21 rotatably mounted on the storage box 1, the shaft rod 21 penetrates the storage box 1 and extends into the water tank 16, the shaft rod 21 is fixedly connected to the camshaft 31, the rotation axes of the shaft rod 21 and the shaft rod 22 are located on the same horizontal line, the shaft rod 21 is fixedly mounted with a gear 12, the gear 12 is located outside the storage box 1, a pillar is rotatably mounted outside the storage box 1, a disc 13 is fixedly mounted on the pillar, a plurality of meshing teeth 14 matching the gear 12 are slidably mounted on the disc 13, and a control mechanism is installed between each meshing tooth 14 and the disc 13;

[0070] A spiral spring 11 is fixedly installed on the pillar, and a cover body 7 that matches the gear 12 and the spiral spring 11 is fixedly installed outside the storage box 1. The end of the spiral spring 11 away from the pillar is fixedly connected to the cover body 7, and a turbulence mechanism is installed between the shaft rod 21 and the guide plate 19 located at the upper part.

[0071] As the turbofan 8 rotates, the shaft 22 will drive the shaft 1 21 to rotate through the camshaft 31, and the rotation of the shaft 1 21 will drive the gear 12 to rotate, and the disc 13 and the pillar will rotate through the meshing teeth 14. The rotation of the pillar will drive the volute spring 11 to reel in for energy storage, thereby partially storing the kinetic energy generated by the turbofan 8. When the turbofan 8 stops rotating (when the electric vehicle stops driving), the volute spring 11 loses the drive of the gear 12 and will expand, thereby driving the gear 12 to reverse, and the gear 12 will drive the shaft 1 21 to reverse, thereby driving the piston disc 34 to reciprocate through the camshaft 31. When the electric vehicle stops driving, there will still be a lot of heat on the battery 2, but the battery 2 no longer generates new heat. Therefore, the battery 2 will continue to dissipate heat when it stops, thereby accelerating the heat dissipation of the heat on the battery 2, ensuring that the temperature on the battery 2 is lower when the electric vehicle is started next time, thereby improving the starting performance of the battery 2 (the wind resistance of the electric vehicle during cruising can drive the turbofan 8 to rotate, and the cruising speed is 15 kilometers per hour).

[0072] The control mechanism comprises a receiving hole formed on the disc 13 , in which the meshing teeth 14 slide, and two elastic telescopic rods 15 are fixedly mounted between the meshing teeth 14 and the disc 13 .

[0073] As the spiral spring 11 is wound, the rebound force of the spiral spring 11 becomes greater and greater, and the resistance to the gear 12 also becomes greater and greater. When the spiral spring 11 is wound to the maximum elastic force, the resistance to the gear 12 is less than the torque of the turbofan 8 at the cruising speed. This ensures that the turbofan 8 keeps rotating at the cruising speed. Once the vehicle speed drops below the cruising speed, the torque generated by the rotation of the turbofan 8 will reach a balance with the resistance of the spiral spring 11. At this time, the turbofan 8 stops rotating and the water in the water tank 16 does not rotate (this critical value can be ignored, so under normal conditions, the electric vehicle stays above the cruising speed).

[0074] When the electric vehicle stops or the speed is lower than the critical value, the turbofan 8 will not rotate under the action of wind resistance. At this time, the spiral spring 11 will drive the shaft 21 to rotate, thereby driving the turbofan 8 to reverse. Regardless of whether the turbofan 8 rotates forward or reversely, it will drive the piston disk 34 to move back and forth, so that the water in the water tank 16 can flow and circulate.

[0075] In a further embodiment, the turbulence mechanism includes a pressure ring 25 fixedly mounted on the guide plate 19, a fixed sleeve 29 fixedly mounted on the shaft 21, a ring rotatably and slidably mounted on the shaft 21, a push plate 28 rotatably mounted on the ring, the push plate 28 and the guide plate 19 are slidably connected, a spring sheet 30 matched with the pressure ring 25 is jointly installed between the push plate 28 and the ring, and the spring sheet 30 and the fixed sleeve 29 and the push plate 28 are all rotatably connected.

[0076] The pressure ring 25 and the shaft 21 are eccentrically arranged. As the shaft 21 rotates, the fixed sleeve 29 and the ring will be driven to rotate, thereby driving the spring sheet 30 to make a circular motion around the shaft 21. Since the pressure ring 25 and the shaft 21 are eccentrically arranged, when the spring sheet 30 rotates, it will resist the pressure ring 25, causing the middle part of the spring sheet 30 to be compressed and expanded and deformed. The deformation of the spring sheet 30 will push or pull the ring to move, thereby driving the push plate 28 to move back and forth, causing the water in the water tank 16 to generate lateral vibration waves, and the deformation of the spring sheet 30 will cause the water in the water tank 16 to generate vertical vibration waves. The superposition of the two vibration waves causes turbulence in the water in the water tank 16, thereby improving the thermal conductivity of the water in the water tank 16. Its effect is similar to the above-mentioned effect of generating eddy currents, which will not be elaborated here.

[0077] An insulation box 9 is arranged between the heat-conducting metal box 10 and the storage box 1. The heat-conducting rod 35 and the heat-conducting plate 37 are wrapped with insulation cotton. The portion of the heat-conducting rod 35 extending into the water tank 16 is exposed.

[0078] The function of the insulation box 9 is to prevent the heat on the battery 2 from being directly transferred to the electric vehicle frame through the storage box 1, so as to protect other components on the electric vehicle. The function of wrapping the insulation cotton on the outside of the heat conduction rod 35 and the heat conduction disk 37 is to insulate the heat conduction rod 35 and the heat conduction disk 37, reduce the heat loss on the heat conduction rod 35 and the heat conduction disk 37, make the heat conduction more accurate, thereby improving the sensitivity of the memory alloy spring 38, and making the heat dissipation adjustment trigger more timely.

[0079] The specific operation steps of this device are as follows:

[0080] Heat dissipation during driving: During the riding of the electric vehicle, when the temperature of the battery 2 reaches the level where heat dissipation is required (the minimum temperature for heat dissipation here is 40 degrees), the memory alloy spring 38 will contract, driving the blocking disk 36 to move, and clearing the holes on the ventilation cover 5. The wind resistance during riding will enter the protective cover 3 through the dustproof net 4, and the dust in the wind will be blocked by the dustproof net 4. The wind entering the protective cover 3 will drive the turbofan 8 to rotate, thereby driving the shaft rod 22 to rotate. The rotation of the shaft rod 22 will drive the camshaft 31 to rotate, thereby driving the piston disk 34 to move up and down. The wind in the protective cover 3 will pass through the turbofan 8 and be discharged from the ventilation cover 5 behind the turbofan 8.

[0081] The piston disc 34 moves back and forth in the compression cylinder 24, and the water in the water tank 16 is sucked into the compression cylinder 24 through the one-way pipe 2 33, and then injected into the heat dissipation elbow 17 through the one-way pipe 1 32, so that the water pressure in the heat dissipation elbow 17 is increased, thereby driving the water in the heat dissipation elbow 17 to flow. As the water flows in the heat dissipation elbow 17, the water passes through the turbine 27, and under the action of the turbine 27, the water rotates to generate a vortex, thereby breaking the boundary layer of the water flow and enhancing the heat transfer.

[0082] In the initial state (battery 2 generates less heat), the water temperature in water tank 16 is low, and the heat conducted from heat conduction rod 35 to heat conduction plate 37 is small, which will not trigger the memory alloy spring 38 to retract (it was found in the research work that within a certain temperature range higher than room temperature, a nickel-titanium alloy wire was burned into a spring, and then it was straightened or cast into a square, triangle or other shape in cold water, and then placed in hot water above 40°C, the alloy wire will return to its original spring shape. Later, it was discovered that some other alloys also have similar functions. This type of alloy is called shape memory alloy. Each shape memory alloy composed of certain elements in a certain weight ratio has a transition temperature; above this temperature, the alloy is processed into a certain shape, It is then cooled to below the transition temperature, its shape is artificially changed, and then heated to above the transition temperature, the alloy will automatically return to the shape originally processed above the transition temperature). Therefore, the memory alloy spring 38 is in an extended state at room temperature. Once it is heated to a specific temperature, it will automatically shrink, thereby driving the blocking disk 36 to move to the side away from the turbofan 8. The higher the temperature, the greater the shrinkage of the memory alloy spring 38, the greater the displacement of the blocking disk 36, and the blocking disk 36 fits the inner wall of the ventilation hood 5. As the blocking disk 36 moves, there are more holes for air to pass through, and the ventilation volume is greater. At this time, the rotation speed of the turbofan 8 is also faster. The heat dissipation efficiency can be automatically adjusted according to the temperature of the different degrees. The higher the temperature, the faster the water flow and the higher the heat dissipation efficiency.

[0083] Energy storage: As the turbofan 8 rotates, the shaft 22 drives the shaft 1 21 to rotate through the camshaft 31. The rotation of the shaft 1 21 drives the gear 12 to rotate, and drives the disc 13 and the pillar to rotate through the meshing teeth 14. The rotation of the pillar drives the volute spring 11 to reel in for energy storage, thereby partially storing the kinetic energy generated by the turbofan 8.

[0084] Heat dissipation when stopped: When the electric vehicle stops or the speed is lower than the critical value, the turbofan 8 will not rotate under the action of wind resistance. At this time, the scroll spring 11 will drive the shaft 21 to rotate, thereby driving the turbofan 8 to reverse. Regardless of whether the turbofan 8 rotates forward or reversely, it will drive the piston disk 34 to move back and forth, so that the water in the water tank 16 can flow and circulate.

[0085] Turbulence: As the shaft 21 rotates, the fixed sleeve 29 and the ring will rotate, thereby driving the spring sheet 30 to make a circular motion around the shaft 21. Since the pressure ring 25 and the shaft 21 are eccentrically arranged, the spring sheet 30 will resist the pressure ring 25 when it rotates, causing the middle part of the spring sheet 30 to be compressed and expanded and deformed. The deformation of the spring sheet 30 will push or pull the ring to move, thereby driving the push plate 28 to move back and forth, causing the water in the water tank 16 to generate lateral vibration waves, and the deformation of the spring sheet 30 will cause the water in the water tank 16 to generate vertical vibration waves. The superposition of the two vibration waves causes turbulence in the water in the water tank 16, thereby improving the thermal conductivity of the water in the water tank 16.

[0086] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A liquid-cooled lithium battery storage device, comprising a storage box (1), characterized in that: Also included is a battery (2) placed in the storage box (1); A heat dissipation unit is installed inside the storage box (1) to transfer heat from the battery (2) to achieve heat dissipation. The heat dissipation unit includes a circulating water circuit and a driving component. The driving component drives water circulation in the circulating water circuit to remove heat generated by the battery (2) in the storage box (1). The energy conversion unit converts wind energy into kinetic energy for driving the operation of the driving component. The energy conversion unit includes a conversion component, an adjustment component and an energy storage component. The conversion component is used to convert wind energy, the adjustment component is used to adjust the wind energy conversion rate of the conversion component, and the energy storage component is used to partially store the kinetic energy generated by the conversion component for driving the operation of the driving component when the wind energy disappears.

2. The liquid-cooled lithium battery storage device according to claim 1, characterized in that: The circulating water circuit comprises a water tank (16) fixedly mounted at the bottom of the storage tank (1), the interior of the water tank (16) being divided into a plurality of chambers by a plurality of partitions (20), each of the chambers being fixedly mounted with two guide plates (19), a plurality of heat dissipation elbows (17) being fixedly connected to the water tank (16), one end of each of the heat dissipation elbows (17) being located above a corresponding one of the guide plates (19), and the other end of each of the heat dissipation elbows (17) extending below a corresponding other guide plate (19), a plurality of heat conduction rods (18) being fixedly penetrated and connected to each of the heat dissipation elbows (17), a heat conduction metal box (10) being fixedly mounted on the matched multiple heat conduction rods (18) being matched with the corresponding battery (2), a plurality of swirl mechanisms being matched with the corresponding heat conduction rods (18) being mounted in each of the heat dissipation elbows (17), and a plurality of heat dissipation fins (6) being fixedly mounted at the bottom of the water tank (16).

3. The liquid-cooled lithium battery storage device according to claim 2, characterized in that: The swirl mechanism comprises a heat conducting ring (26) fixedly mounted inside the heat dissipation elbow (17); the heat conducting ring (26) is fixedly connected to the heat conducting rod (18); and a turbine (27) is fixedly mounted inside the heat conducting ring (26).

4. The liquid-cooled lithium battery storage device according to claim 2, characterized in that: The driving assembly comprises a compression cylinder (24) fixedly mounted inside a water tank (16), a piston disc (34) being sealingly and slidably mounted inside the compression cylinder (24), a one-way pipe (32) and a one-way pipe (33) being fixedly connected to the compression cylinder (24), the one-way pipe (32) being fixedly connected to the other end of the heat dissipation elbow (17), and the one-way pipe (33) being located below another guide plate (19) inside the water tank (16).

5. The liquid-cooled lithium battery storage device according to claim 2, characterized in that: The conversion component comprises a ventilation hood (5) fixedly mounted on the outside of the storage box (1), a protective hood (3) fixedly mounted on the ventilation hood (5), a dust screen (4) fixedly mounted on the protective hood (3), a second shaft rod (22) rotatably mounted on the storage box (1) via a support frame (23), a turbofan (8) fixedly mounted on the second shaft rod (22), the turbofan (8) being located inside the protective hood (3), the second shaft rod (22) penetrating the storage box (1) and extending into the water tank (16), the second shaft rod (22) being rotatably connected to a piston disc (34) via a camshaft (31).

6. The liquid-cooled lithium battery storage device according to claim 5, characterized in that: The adjustment assembly comprises a heat transfer disk (37) rotatably mounted on the second shaft (22); a sealing disk (36) matching the ventilation hood (5) is slidably mounted on the ventilation hood (5); a memory alloy spring (38) is fixedly mounted between the sealing disk (36) and the heat transfer disk (37); a heat transfer rod (35) is fixedly mounted on the heat transfer disk (37); and the heat transfer rod (35) penetrates the storage box (1) and extends into the water tank (16).

7. The liquid-cooled lithium battery storage device according to claim 5, characterized in that: The energy storage assembly comprises a shaft rod (21) rotatably mounted on the storage box (1), the shaft rod (21) passing through the storage box (1) and extending into the water tank (16), the shaft rod (21) being fixedly connected to the camshaft (31), the rotation axes of the shaft rod (21) and the shaft rod (22) being located on the same horizontal line, a gear (12) being fixedly mounted on the shaft rod (21), the gear (12) being located outside the storage box (1), a support column being rotatably mounted outside the storage box (1), a disc (13) being fixedly mounted on the support column, a plurality of meshing teeth (14) matching with the gear (12) being slidably mounted on the disc (13), and a control mechanism being installed between each of the meshing teeth (14) and the disc (13); A scroll spring (11) is fixedly mounted on the support, a cover body (7) matching with the gear (12) and the scroll spring (11) is fixedly mounted on the outside of the storage box (1), an end of the scroll spring (11) away from the support is fixedly connected to the cover body (7), and a turbulence mechanism is installed between the shaft rod (21) and the guide plate (19) located at the top.

8. The liquid-cooled lithium battery storage device according to claim 7, characterized in that: The control mechanism comprises a receiving hole formed on a circular disk (13), the meshing teeth (14) sliding in the receiving hole, and two elastic telescopic rods (15) fixedly mounted between the meshing teeth (14) and the circular disk (13).

9. The liquid-cooled lithium battery storage device according to claim 7, characterized in that: The turbulence mechanism comprises a pressure ring (25) fixedly mounted on the guide plate (19), a fixed sleeve (29) fixedly mounted on the shaft rod (21), a ring rotatably and slidably mounted on the shaft rod (21), a push plate (28) rotatably mounted on the ring, the push plate (28) and the guide plate (19) are slidably connected, a spring sheet (30) matched with the pressure ring (25) is installed between the push plate (28) and the sleeve, and the spring sheet (30) and the fixed sleeve (29) and the push plate (28) are all rotatably connected.

10. The liquid-cooled lithium battery storage device according to claim 6, characterized in that: An insulation box (9) is arranged between the heat-conducting metal box (10) and the storage box (1); the exterior of the heat-conducting rod (35) and the heat-conducting plate (37) are wrapped with insulation cotton; the portion of the heat-conducting rod (35) extending into the water tank (16) is exposed.

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