Double-loop battery cooler structure

Abstract

The invention relates to a double-loop battery cooler structure, and relates to the technical field of battery coolers, the double-loop battery cooler structure comprises a shell, a cooling mechanism and an air inlet mechanism are arranged in the shell, each cooling pipe of the cooling mechanism is correspondingly equipped with a bimetallic strip, when abnormal high temperature is monitored at the periphery of the cooling pipe, the bimetallic strips can be bent along with temperature change, and the temperature of the bimetallic strips is changed. The linkage adjusting mechanism accurately increases the flow speed of cooling liquid in the cooling pipe and rapidly inhibits local overheating, when an automobile runs at a high speed, a guide plate of the air inlet mechanism is automatically unfolded downwards, oncoming high-speed airflow is efficiently guided into the shell, air circulation around heat dissipation fins is accelerated, double cooling cooperation of air cooling and liquid cooling is achieved, and the heat dissipation efficiency is improved. The cooling effect of the battery can be greatly enhanced and the cooling efficiency can be perfectly balanced only at the cost of slightly increasing the running resistance on the premise of not consuming extra electric power and not increasing the power of the circulating pump by virtue of the natural airflow reinforced heat dissipation of the running of the vehicle.

Description

Technical Field

[0001] This application relates to the field of battery cooler technology, and in particular to a dual-loop battery cooler structure. Background Technology

[0002] Battery cooling refers to the use of various technologies and methods to reduce the heat generated by new energy batteries during operation, ensuring they operate within an ideal temperature range and improving their performance and lifespan. With the rapid development of electric vehicles, energy storage systems, and renewable energy power generation, new energy battery cooling technology has become increasingly important. Automotive battery coolers are generally filled with coolant, which is cooled by the cooler and then circulated to the inner wall of the battery casing, thereby achieving the cooling effect.

[0003] For example, Chinese patent CN222939985U discloses a battery cooler for new energy vehicles. This prior art uses a cooling liquid that absorbs heat to flow from the inside of a circulation plate into the inside of a radiator. The radiator then cools the cooling liquid. After the radiator cools the cooling liquid, it is then circulated back to the inner wall of the cooling plate through a Y-shaped pipe. This process, along with the fixed outer frame, encloses and cools the battery, improving cooling efficiency. This addresses the problem that existing new energy vehicle coolers can only contact one side of the battery, resulting in poor cooling performance.

[0004] However, the above has some shortcomings in actual use: 1. This existing technology uses a cooling plate and two circulation plates to circulate coolant to cool each battery. However, the flow rate of the coolant depends entirely on the circulation pump. When a battery is abnormally hot and the flow rate of the coolant around it needs to be increased, the flow rate of the coolant around it can only be increased by increasing the flow rate of the coolant on the cooling plate and the two circulation plates. This can only increase the power of the circulation pump and increase its power consumption, which is not conducive to its use in new energy vehicles. Moreover, increasing the coolant flow rate only benefits the battery with abnormally high temperature and has no significant advantage for the other batteries with normal temperature.

[0005] 2. When a car is traveling at high speed, its motor needs to operate at high power, which in turn requires the battery to continuously output a large current. However, the existing technology can only continue to increase the coolant flow rate to cope with battery cooling. The cooling method is too simple, and the cooling system will also consume battery power too quickly, shortening the electric vehicle's range.

[0006] Therefore, based on the above-stated viewpoints, there is still room for improvement in existing battery coolers. Summary of the Invention

[0007] To address the aforementioned problems, this application provides a dual-loop battery cooler structure: The device includes an outer shell, inside which a set of U-shaped plates are symmetrically arranged, with an inlet pipe and an outlet pipe installed between the inner walls of the two U-shaped plates, respectively.

[0008] A cooling mechanism is provided between the inlet pipe and the outlet pipe. The cooling mechanism includes two sets of cooling pipes distributed vertically, with one end passing through the U-shaped plate on the same side and connected to the outlet pipe. An adjustment component is provided between the other end of the cooling pipe and the inlet pipe. A bimetallic strip is also provided on one side of the cooling pipe. When the temperature around the cooling pipe is higher than the bending temperature of the bimetallic strip, the bimetallic strip is bent in the opposite direction of the adjustment component to increase the flow rate of the coolant in the cooling pipe.

[0009] A rectangular opening is provided on the lower side, and an air intake mechanism is also provided. The air intake mechanism includes a guide plate with its edge hinged to the inner wall of the rectangular opening. The air intake mechanism also includes an unfolding component. When the car is traveling at high speed, the unfolding component allows the guide plate to tilt downward, and the airflow is guided into the housing by the guide plate, increasing the air circulation around the battery.

[0010] Preferably, the adjusting component includes a liquid inlet chamber with a conical upper end connected to the corresponding cooling pipe end, a liquid inlet chamber with a lower end connected to a liquid inlet pipe, an annular plate adapted to it installed in the liquid inlet chamber, a plurality of circumferentially evenly distributed circular holes opened on the upper side of the annular plate, and an annular plug for sealing all the circular holes on the side of the annular plate.

[0011] Preferably, a set of rectangular blocks are symmetrically installed on the side of the cooling pipe. A set of vertical rods extending to the liquid inlet chamber and connected to the annular plug are inserted into the rectangular blocks. A rectangular ring is installed on the upper end of all the vertical rods and fits on the corresponding bimetallic strip. The bimetallic strip and the rectangular ring are in close contact with the inner wall of the liquid inlet chamber, which limits the position of the rectangular ring. A spring is connected between the rectangular blocks and the rectangular rings.

[0012] Preferably, multiple evenly distributed heat dissipation fins are installed on the side of the cooling pipe, and the heat dissipation fins at the same position on two adjacent cooling pipes are in contact. A graphene sheet of the same width is installed on the lower side of all the heat dissipation fins on the cooling pipe. A heat conduction pipe is installed between all the heat dissipation fins on the cooling pipe above the cooling pipe. The end of the heat conduction pipe near the rectangular ring is connected to the corresponding bimetallic sheet on the same side.

[0013] Preferably, the unfolding assembly includes a set of slide blocks that are laterally slidably disposed on one side of the arc-shaped plate. The side of the slide block is provided with a vertical groove. A set of arc-shaped plates with the same center as the hinge axis of the guide plate are symmetrically installed on the upper edge of the guide plate. The side of the arc-shaped plate is rotatably mounted with pulleys that slide in the groove on the same side.

[0014] Preferably, a set of air vents is provided on the side of the outer casing away from the rectangular opening, and a set of crossbars penetrating the U-shaped plate on the same side are installed on the side of the slide. The ends of the two crossbars away from the slide are jointly equipped with baffles to block all air vents, and a spring is connected between the baffles and the U-shaped plate.

[0015] Preferably, the edges of the heat dissipation fins without graphene sheets extend to the inner wall of the outer casing, and the two sides of the graphene sheets contact the U-shaped plates. Two adjacent heat dissipation fins on each set of cooling pipes, together with the graphene sheets and the inner wall of the outer casing, form a transverse channel with open ends. After the airflow enters the outer casing, the airflow is allowed to circulate in this transverse channel.

[0016] Preferably, a set of mounting blocks is installed on one side of the arc plate on the inner wall of the outer shell. A screw is rotatably installed between two mounting blocks in the set. A micro motor with a drive end connected to one end of the screw is installed on the outer side of one of the mounting blocks. A threaded seat is provided on the screw that is slidably connected to the inner wall of the outer shell and connected to the slide on the same side.

[0017] Preferably, a dust sensor is installed at the center of the lower side of the housing, and a speed sensor is installed on the inner wall of the housing.

[0018] In summary, this application includes at least one of the following beneficial technical effects: I. The cooling mechanism of this application is designed with two sets of cooling pipes, each set containing multiple cooling pipes, which can fully cover the upper and lower surfaces of the plate-shaped battery to achieve uniform heat dissipation. At the same time, each cooling pipe is equipped with a bimetallic strip. When abnormal high temperature is detected around the cooling pipe, the bimetallic strip will bend with the temperature change. The linkage adjustment mechanism precisely increases the flow rate of the coolant in the cooling pipe, quickly suppressing local overheating. This design does not require changing the flow rate of other cooling pipes, nor does it require increasing the power of the circulation pump. It significantly saves power consumption while achieving efficient temperature control, and takes into account both heat dissipation performance and energy economy.

[0019] Second, when the car is traveling at high speed, the air intake mechanism of this application automatically unfolds the guide plate downwards, efficiently guiding the oncoming high-speed airflow into the interior of the casing. The airflow is precisely guided to form a transverse channel with both ends through each cooling pipe between two adjacent heat dissipation fins in the same position, forcing the airflow to flow orderly along the transverse channel. This not only avoids the flow rate attenuation caused by the disorderly flow of air inside the casing, but also significantly accelerates the air circulation around the heat dissipation fins.

[0020] Third, it achieves dual cooling synergy of air cooling and liquid cooling, and enhances heat dissipation by utilizing the natural airflow of the vehicle. At the cost of only a slight increase in driving resistance, it can significantly enhance the battery cooling effect without consuming additional power or increasing the power of the circulation pump, ensuring that the battery always works in the ideal temperature range, and perfectly balancing the cooling efficiency. Attached Figure Description

[0021] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the structure of this application.

[0023] Figure 2 This is a side view of this application.

[0024] Figure 3 This is a schematic diagram of the second state structure of this application.

[0025] Figure 4 This is a schematic diagram of the internal structure of this application.

[0026] Figure 5 This is an internal side view of this application.

[0027] Figure 6 This is a schematic diagram of the cooling mechanism structure of this application.

[0028] Figure 7 This is a cross-sectional view of this application.

[0029] Figure 8 This is a schematic diagram of the regulating mechanism structure of this application.

[0030] Figure 9 This is a schematic diagram of the air intake mechanism structure of this application.

[0031] Figure 10 yes Figure 9 Enlarged view of section A in the middle.

[0032] In the diagram: 1. Outer shell; 2. Cooling mechanism; 201. Cooling pipe; 202. Liquid inlet chamber; 203. Annular plate; 204. Circular hole; 205. Annular plug; 206. Vertical rod; 207. Rectangular ring; 208. Rectangular block; 209. Spring 1; 210. Heat dissipation fins; 211. Graphene sheet; 212. Heat pipe; 213. Bimetallic strip; 3. Air intake mechanism; 301. Guide plate; 302. Arc plate; 30 3. Mounting block; 304. Screw; 305. Micro motor; 306. Threaded seat; 307. Slide seat; 308. Slide groove; 309. Pulley; 310. Crossbar; 311. Baffle; 312. Spring II; 4. Liquid inlet pipe; 5. Liquid outlet pipe; 6. Rectangular opening; 7. U-shaped plate; 8. Side plate; 9. Dust sensor; 10. Speed ​​sensor; 11. Flow guide seat; 12. Brush bristles; 13. Air outlet; 14. Filter screen. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-10 The embodiments of this application will be described in detail.

[0034] This application discloses a dual-loop battery cooler structure, wherein the cooling mechanism is designed with two sets of cooling pipes, each set containing multiple cooling pipes, which can fully cover the upper and lower surfaces of the plate-shaped battery to achieve uniform heat dissipation. At the same time, each cooling pipe is equipped with a bimetallic strip. When abnormal high temperature is detected around the cooling pipe, the bimetallic strip will bend with the temperature change. The linkage adjustment mechanism precisely increases the flow rate of the coolant in the cooling pipe, quickly suppressing local overheating. This design does not require changing the flow rate of other cooling pipes, nor does it require increasing the power of the circulation pump. It significantly saves power consumption while achieving efficient temperature control, and balances heat dissipation performance and energy economy.

[0035] Example 1: like Figure 1 , Figure 4 and Figure 5 As shown, the device includes an outer shell 1. A set of U-shaped plates 7 are symmetrically arranged inside the outer shell 1. An inlet pipe 4 and an outlet pipe 5 are installed sequentially between the inner walls of the two U-shaped plates 7. One end of the inlet pipe 4 and the outlet pipe 5 extends to the outside of the outer shell 1. Coolant enters from the outer end port of the inlet pipe 4 and exits from the outer end of the outlet pipe 5.

[0036] A circulation pump (not shown) with an output port connected to the external port of the inlet pipe 4 is provided, and a radiator (not shown) with an input port connected to the external port of the outlet pipe 5 is provided. The input end of the circulation pump is connected to the output end of the radiator, and both the circulation pump and the radiator are of the same model as those in the prior art document. The radiator cools the coolant, and the circulating pump then sends the low-temperature coolant into the inlet pipe 4. After being cooled and used, the coolant returns to the radiator from the external port of the outlet pipe 5 for recooling.

[0037] like Figures 4-6 As shown, a cooling mechanism 2 for cooling the battery is provided between the inlet pipe 4 and the outlet pipe 5. The cooling mechanism 2 includes two sets of cooling pipes 201 distributed vertically, with one end passing through the U-shaped plate 7 on the same side and connected to the outlet pipe 5. An adjustment component is provided between the other end of the cooling pipe 201 and the inlet pipe 4. When the plate battery is placed between the two sets of cooling pipes 201, the coolant can enter the upper and lower sets of cooling pipes 201 through the adjustment component, and then rejoin in the outlet pipe 5 to form two double-loop cooling channels, which can cool the upper and lower surfaces of the plate battery.

[0038] A one-way valve (not shown) is installed on the cooling pipe 201 near the outlet pipe 5 to prevent the coolant in the outlet pipe 5 from flowing back into the cooling pipe 201.

[0039] like Figures 6-8As shown, the regulating component includes a liquid inlet chamber 202 with a conical upper end connected to the end of the corresponding cooling pipe 201. The lower end of the liquid inlet chamber 202 is connected to the liquid inlet pipe 4. An annular plate 203 adapted to the liquid inlet chamber 202 is installed inside the liquid inlet chamber 202. Multiple circular holes 204 evenly distributed in a circumferential direction are opened on the upper side of the annular plate 203. An annular plug 205 is also provided on the side of the annular plate 203 to block all the circular holes 204. When the circular holes 204 are closed, the coolant can only pass through the inner hole of the annular plate 203 and then enter the cooling pipe 201. When the annular plug 205 moves in the opposite direction of the annular plate 203 to release the blockage of the circular holes 204, the coolant can not only pass through the inner hole of the annular plate 203, but also through each circular hole 204, thereby increasing the liquid inlet volume of the cooling pipe 201, accelerating the flow rate of the coolant in the cooling pipe 201, and improving the heat dissipation and cooling effect.

[0040] like Figure 6 As shown, a bimetallic strip 213 adapted to the adjustment component is also provided on one side of the cooling pipe 201. The metal strip of the bimetallic strip 213 closer to the liquid inlet chamber 202 has a higher coefficient of thermal expansion than the other metal strip. Therefore, after the bimetallic strip 213 is subjected to bending heat, the metal strip with a higher coefficient of thermal expansion bends towards the metal strip with a lower coefficient of thermal expansion, causing the bimetallic strip 213 to bend in the opposite direction to the liquid inlet chamber 202. The bimetallic strip 213 is made of a composite of brass with a high coefficient of thermal expansion and Invar steel with a low coefficient of thermal expansion. The bending temperature is calibrated to 60℃±2℃ through a heat treatment process.

[0041] like Figure 8 As shown, a set of rectangular blocks 208 are symmetrically installed on the side of the cooling pipe 201. A set of vertical rods 206 are inserted on the rectangular blocks 208, with their lower ends extending into the liquid inlet chamber 202 and connected to the annular plug 205. All the vertical rods 206 have a rectangular ring 207 fitted on the corresponding bimetallic strip 213 at their upper ends. A spring 209 is connected between the rectangular blocks 208 and the rectangular rings 207. When the bimetallic strip 213 bends in the opposite direction to the liquid inlet chamber 202, it will pull the annular plug 205 upward through the rectangular rings 207 and the vertical rods 206, and at the same time stretch the spring 209. When the bimetallic strip 213 returns to its original position, the spring 209 rebounds and drives the rectangular rings 207 and the annular plug 205 to return to their original positions.

[0042] like Figure 8 As shown, the bimetallic strip 213 and the rectangular ring 207 are in close contact with the inner wall of the inlet chamber 202. The annular plate 203 limits the downward movement of the circular hole 204, while the bimetallic strip 213 limits the upward movement of the annular plug 205 through the rectangular ring 207. This enhances the stability of the annular plug 205 and prevents the annular plug 205 from moving and affecting the coolant flow rate due to bumps during vehicle operation.

[0043] like Figures 6-8As shown, multiple evenly distributed heat dissipation fins 210 are installed on the side of the cooling pipe 201. A graphene sheet 211 of the same width is installed on the lower side of all the heat dissipation fins 210 on the cooling pipe 201. During installation, thermal grease is applied to the side of the graphene sheet 211 and the same side of the battery, and then the graphene sheet 211 is contacted with the same side of the plate battery. The thermal grease and the graphene sheet 211 have high thermal conductivity, which can evenly guide the heat generated by the battery operation to each heat dissipation fin 210. Then the coolant flowing in the cooling pipe 201 absorbs the heat on the heat dissipation fins 210, thereby achieving heat dissipation and cooling.

[0044] like Figure 6 and Figure 8 As shown, a heat pipe 212 is installed above all the heat dissipation fins 210 on the cooling pipe 201. The end of the heat pipe 212 near the rectangular ring 207 is connected to the corresponding bimetallic strip 213 on the same side. At the same time, the heat pipe 212 also conducts the temperature of the heat dissipation fins 210 on the cooling pipe 201 to the bimetallic strip 213. When the temperature exceeds 60 degrees, the bimetallic strip 213 bends, so that when the temperature around the cooling pipe 201 is higher than the bending temperature of the bimetallic strip 213, the bimetallic strip 213 bends in the opposite direction of the adjustment component to increase the flow rate of the coolant in the cooling pipe 201.

[0045] In summary, the plate-shaped battery is installed between two sets of graphene sheets 211, with the graphene sheets 211 contacting the same side of the plate-shaped battery. During use, the radiator cools the coolant, and then the circulating pump delivers the low-temperature coolant into the inlet pipe 4 at a fixed pressure, and then into each inlet chamber 202. The coolant enters the cooling pipe 201 through the inner hole of the annular plate 203. At this time, the circular hole 204 is closed. The plate-shaped battery generates heat during operation, and the graphene sheets 211 direct the heat to the heat dissipation fins 210 connected to them. The coolant flowing in the cooling pipe 201 absorbs the heat on the heat dissipation fins 210, thus cooling the battery. After absorbing heat, the coolant enters the outlet pipe 5 and returns to the radiator to continue cooling.

[0046] When an abnormally high temperature occurs at a certain point in the plate battery, the coolant flow rate of the nearest cooling pipe 201 is insufficient to absorb the large amount of heat generated by the abnormal high temperature. The heat-dissipating fins 210, where heat accumulates, transfer the heat to the bimetallic strip 213 through the heat pipe 212. When the bimetallic strip 213 reaches its bending temperature of 60 degrees, it bends in the opposite direction to the liquid inlet chamber 202. The rectangular ring 207 and the vertical rod 206 pull the annular plug 205 upward, while the spring 209 is stretched. When the blockage of the circular hole 204 is released, the coolant can pass through not only the inner hole of the annular plate 203, but also through each circular hole 204, thereby increasing the liquid inlet of the cooling pipe 201, accelerating the coolant flow rate in the corresponding cooling pipe 201, and strengthening the cooling of the abnormally high temperature location. After the high temperature disappears and drops below 60 degrees, the bimetallic strip 213 returns to its original shape, and the spring 209 rebounds, causing the rectangular ring 207 and the annular plug 205 to descend and re-block the circular hole 204, restoring the flow rate in the cooling pipe 201.

[0047] It should be noted that when the circular hole 204 is opened, the total flow rate of water entering the cooling pipe 201 increases, while the cross-sectional area of ​​the cooling pipe 201 itself remains unchanged, thereby increasing the average water flow velocity inside the cooling pipe 201.

[0048] like Figure 3 and Figure 9 As shown, a rectangular opening 6 is provided on the lower side, and an air intake mechanism 3 is also provided. The air intake mechanism 3 includes a guide plate 301 with its edge hinged to the inner wall of the rectangular opening 6. The air intake mechanism 3 also includes an unfolding component. During high-speed driving of the car, the guide plate 301 is tilted downward by the unfolding component. The airflow is guided by the guide plate 301 to enter the outer casing 1 through the rectangular opening 6, thereby increasing the air circulation around the battery.

[0049] like Figure 9 and Figure 10 As shown, the unfolding assembly includes a set of slide blocks 307 that are laterally slidably disposed on one side of the arc plate 302. The side of the slide block 307 has a vertical groove 308. A set of arc plates 302 with the same center as the hinge axis of the guide plate 301 are symmetrically installed on the upper edge of the guide plate 301. The arc plate 302 is a quarter-circle plate. The side of the arc plate 302 is rotatably mounted above the axis of rotation and slides 309 that slide in the groove 308 on the same side. The slide block 307 moves towards the U-shaped plate 7. Through the cooperation of the groove 308 and the pulley 309, the guide plate 301 is deflected downward around the hinge, allowing the guide plate 301 to unfold. At the same time, the arc plate 302 can also guide the airflow and prevent the airflow from slipping away from the side.

[0050] A rubber ring is installed on the outside of the guide plate 301 to seal the gap between the guide plate 301 and the rectangular opening 6 when the guide plate 301 is closed, thus preventing water from entering.

[0051] like Figure 2 and Figure 9 As shown, a set of air vents 13 are provided on the side of the outer shell 1 away from the rectangular opening 6. A set of crossbars 310 passing through the U-shaped plate 7 on the same side is installed on the side of the slide 307. The ends of the two crossbars 310 away from the slide 307 are jointly equipped with baffles 311 that block all air vents 13. A second spring 312 is connected between the baffle 311 and the U-shaped plate 7. The slide 307 moving in the opposite direction to the U-shaped plate 7 will also drive the baffle 311 to move in the same direction through the crossbars 310, so that the air vents 13 open and the airflow entering the outer shell 1 is discharged from the air vents 13. The second spring 312 is used to limit the 311 and enhance its stability.

[0052] The heat dissipation fins 210 at the same position on two adjacent cooling pipes 201 are in contact with each other. The edges of the heat dissipation fins 210 without graphene sheets 211 extend to the inner wall of the outer shell 1. The two sides of the graphene sheets 211 are in contact with the U-shaped plate 7. The two adjacent heat dissipation fins 210 at the same position on each cooling pipe 201, together with the graphene sheets 211 and the inner wall of the outer shell 1, form a transverse channel with open ends. After the airflow enters the outer shell 1, the airflow is allowed to circulate in this transverse channel to avoid the airflow running around inside the outer shell 1 and reduce the flow rate, increase the airflow around the cooling pipes 201, and further cool the battery.

[0053] like Figures 5-7 As shown, a set of mounting blocks 303 are installed on the inner wall of the outer casing 1 on one side of the arc plate 302. A screw 304 is rotatably mounted between two mounting blocks 303 in the set. A micro motor 305 with its drive end connected to one end of the screw 304 is installed on the outer side of one of the mounting blocks 303. A threaded seat 306 is provided on the screw 304, which is slidably connected to the inner wall of the outer casing 1 and connected to the slide 307 on the same side. The running micro motor 305 drives the screw 304 to rotate. The rotating screw 304 drives the micro motor 305 to move in the opposite direction to the arc plate 7, thereby moving the slide 307 to open the guide plate 301 and close it. A synchronizer (not shown) connected to the two micro motors 305 is also provided to ensure that the two micro motors 305 start and stop at the same time.

[0054] like Figure 9 As shown, a speed sensor 10 is installed on the inner wall of the housing 1. A controller (not shown) is also installed inside the housing 1. The controller is an STM32F407 microcontroller. The controller is electrically connected to the electrical components inside the device and controls their operation. At the same time, the car's rain sensor is electrically connected to the controller. The speed sensor 10 detects the car's speed. When it reaches 100 kilometers per hour, it sends a signal to the controller. The controller controls the guide plate 301 to unfold to enhance air circulation inside the housing 1. At the same time, when the guide plate 301 is open and it is raining, the car's rain sensor sends a signal to the controller. The controller controls the guide plate 301 to close to prevent rainwater from entering the housing 1.

[0055] Figure 1 and Figure 9 As shown, a rectangular opening with dimensions larger than that of the plate battery is provided on the side of the outer casing 1 near the rectangular opening 6. A side plate 8 is provided at the port of the rectangular opening and is threadedly connected to it. The plate battery is sent into or taken out of the outer casing 1 through the opening, and the opening is closed by the side plate 8.

[0056] In summary, when the car reaches a speed of 100 kilometers per hour, the speed sensor 10 sends a signal to the controller. The controller controls two micro motors 305 to drive the screw 304 to rotate, causing the slide 307 to move in the opposite direction to the U-shaped plate 7 via the threaded seat 306. This, in conjunction with the slide groove 308 and the pulley 309, causes the guide plate 301 to unfold. At the same time, the moving slide 307 pulls the baffle 311 through the crossbar 310 to release the blockage of the air outlet 13. Thus, during the car's forward movement, the airflow is guided into the housing 1 through the guide plate 301, flows around the plate-shaped battery, and is discharged from the air outlet 13, enhancing air circulation inside the housing 1 and improving battery heat dissipation and cooling. When the car speed is below 100 kilometers per hour, the controller controls the micro motors 305 to drive the screw 304 in the opposite direction, causing the slide 307 to move in the opposite direction, allowing the guide plate 301 to retract into the rectangular opening 6. At the same time, the baffle 311 returns to its original position, blocking the air outlet 13.

[0057] Example 2: Based on implementation one, such as Figure 2 , Figure 3 and Figure 9 As shown, an arc-shaped filter 14 adapted to the arc edges of the two arc plates 302 is installed between them, and a filter 2 is provided at each port of the air outlet 13. The filter 14 can filter the dust in the airflow to prevent it from entering the housing 1. At the same time, the filter 2 prevents external dust from entering the housing 1 through the air outlet 13.

[0058] like Figure 2 and Figure 3 As shown, a horizontally oriented air guide seat 11 with an arc-shaped front side is installed at the lower port of the rectangular opening 6 away from the hinge position of the guide plate 301. Brush bristles 12 are installed on the rear side of the air guide seat 11. When the guide plate 301 retracts into the rectangular opening 6 after use, it will also drive the filter screen 14 to move. The brush bristles 12 will brush off the dust adhering to the outer surface of the filter screen 14, preventing the dust from entering the housing 1 along with the filter screen 14. At the same time, the arc-shaped side of the air guide seat 11 is consistent with the direction of the car's forward movement, and the arc shape can better reduce air resistance.

[0059] like Figure 2As shown, a dust sensor 9 is installed at the center of the lower side of the housing 1. The dust sensor 9 detects the dust concentration at the bottom of the car. When the dust concentration is too high and reaches a predetermined value, it sends a signal to the controller. The controller closes the unfolded guide plate 301 to prevent excessive dust accumulation on the filter 14 from affecting the air intake.

[0060] This application also discloses a method for using a dual-circuit battery cooler structure, the steps of which are as follows: S1. Device Installation: After installing the car's plate battery inside the housing 1, install the entire device at the bottom of the car, making the lower surface of the housing 1 flush with the car chassis. Specifically, open the side panel 8, install the plate battery between the two sets of graphene sheets 211 and fix it with bolts, then reinstall the side panel 8, install the device at the bottom of the car, making the lower surface of the housing 1 flush with the car chassis, with the side panel 8 facing the direction of the car's movement, and electrically connect the car's rain sensor to the controller.

[0061] S2. Normal heat dissipation: Coolant flows through cooling pipe 201 to cool the operating plate battery. Specifically, the radiator cools the coolant, and then the circulating pump delivers the low-temperature coolant at a fixed pressure into the inlet pipe 4, and then into each inlet chamber 202. The coolant enters the cooling pipe 201 through the inner hole of the annular plate 203. At this time, the circular hole 204 is closed. At the same time, the operating plate battery generates heat. The graphene sheet 211 directs the heat to the heat dissipation fins 210 connected to it. The coolant flowing through the cooling pipe 201 absorbs the heat on the heat dissipation fins 210, thus cooling the battery. After absorbing heat, the coolant enters the outlet pipe 5 and returns to the radiator to continue cooling.

[0062] S3. High-temperature heat dissipation: When a certain part of the plate battery experiences high temperature, the flow rate of the coolant in the surrounding cooling pipe 201 is increased. Specifically, when an abnormally high temperature occurs at a certain part of the plate battery, the coolant flow rate of the nearest cooling pipe 201 is insufficient to absorb the large amount of heat generated by the abnormal high temperature. The heat-generating fins 210, where heat accumulates, transfer the heat to the bimetallic strip 213 through the heat pipe 212. When the bimetallic strip 213 reaches its bending temperature of 60 degrees, it bends in the opposite direction to the liquid inlet chamber 202, pulling the annular plug 2 through the rectangular ring 207 and the vertical rod 206. When the spring 209 is stretched and the blockage of the circular hole 204 is released, the coolant can pass through the inner hole of the annular plate 203 and through each circular hole 204, thereby increasing the amount of coolant entering the cooling pipe 201, accelerating the flow rate of the coolant in the corresponding cooling pipe 201, and strengthening the cooling of abnormally high temperature positions. After the high temperature disappears and drops below 60 degrees, the bimetallic strip 213 returns to its original shape, and the spring 209 rebounds, causing the rectangular ring 207 and the annular plug 205 to descend and re-block the circular hole 204, restoring the flow rate in the cooling pipe 201.

[0063] S4. Auxiliary heat dissipation: When the car is running at high speed, the air intake mechanism 3 introduces high-speed airflow into the housing 1 to accelerate the air circulation around the plate battery. Specifically, when the car speed reaches 100 kilometers per hour, the speed sensor 10 sends a signal to the controller. The controller controls two micro motors 305 to drive the screw 304 to rotate, which in turn causes the slide 307 to move in the opposite direction to the U-shaped plate 7 via the threaded seat 306. This, combined with the sliding groove 308 and the pulley 309, causes the guide plate 301 to unfold. At the same time, the moving slide 307 moves through the crossbar 31. Pulling the baffle 311 releases the blockage of the air outlet 13. As the car moves forward, the airflow is guided into the housing 1 by the guide plate 301, flows around the plate-shaped battery, and is discharged from the air outlet 13, which enhances the air circulation inside the housing 1 and improves the heat dissipation and cooling of the battery. When the car speed is below 100 kilometers per hour, the controller controls the micro motor 305 to drive the screw 304 in the reverse direction, causing the slide block 307 to move in the reverse direction, so that the guide plate 301 retracts into the rectangular opening 6. At the same time, the position of the baffle 311 returns to the original position to block the air outlet 13.

[0064] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects.

[0065] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual-circuit battery cooler structure, comprising a shell (1), wherein a set of U-shaped plates (7) are symmetrically arranged inside the shell (1), and an inlet pipe (4) and an outlet pipe (5) are respectively installed between the inner walls of the two U-shaped plates (7), characterized in that: A cooling mechanism (2) is provided between the inlet pipe (4) and the outlet pipe (5). The cooling mechanism (2) includes two sets of cooling pipes (201) distributed vertically and connected to the outlet pipe (5) through the U-shaped plate (7) on the same side. An adjustment component is provided between the other end of the cooling pipe (201) and the inlet pipe (4). A bimetallic strip (213) is also provided on one side of the cooling pipe (201). When the temperature around the cooling pipe (201) is higher than the bending temperature of the bimetallic strip (213), the bimetallic strip (213) is bent in the opposite direction of the adjustment component to increase the flow rate of the coolant in the cooling pipe (201). A rectangular opening (6) is provided on the lower side, and an air intake mechanism (3) is also provided. The air intake mechanism (3) includes a guide plate (301) with its edge hinged to the inner wall of the rectangular opening (6). The air intake mechanism (3) also includes an unfolding component. During high-speed driving of the car, the guide plate (301) is tilted downward by the unfolding component, and the airflow is guided by the guide plate (301) to enter the outer casing (1), thereby increasing the air circulation around the battery.

2. The dual-loop battery cooler structure according to claim 1, characterized in that: The adjustment assembly includes a liquid inlet chamber (202) with a cone-shaped upper end connected to the end of the corresponding cooling pipe (201). The lower end of the liquid inlet chamber (202) is connected to the liquid inlet pipe (4). An annular plate (203) adapted to it is installed in the liquid inlet chamber (202). Multiple circular holes (204) evenly distributed in the circumference are opened on the upper side of the annular plate (203). An annular plug (205) is also provided on the side of the annular plate (203) to seal all the circular holes (204).

3. The dual-loop battery cooler structure according to claim 1, characterized in that: A set of rectangular blocks (208) are symmetrically installed on the side of the cooling pipe (201). A set of vertical rods (206) are inserted on the rectangular blocks (208) with their lower ends extending into the liquid inlet chamber (202) and connected to the annular plug (205). All the vertical rods (206) have a rectangular ring (207) fitted on the corresponding bimetallic strip (213) at their upper ends. The bimetallic strip (213) and the rectangular ring (207) are close to the inner wall of the liquid inlet chamber (202) and play a limiting role for the rectangular ring (207). A spring (209) is connected between the rectangular blocks (208) and the rectangular ring (207).

4. The dual-loop battery cooler structure according to claim 1, characterized in that: Multiple evenly distributed heat dissipation fins (210) are installed on the side of the cooling pipe (201), and the heat dissipation fins (210) at the same position on two adjacent cooling pipes (201) are in contact with each other. A graphene sheet (211) of the same width is installed on the lower side of all the heat dissipation fins (210) on the cooling pipe (201). A heat conduction pipe (212) is installed on the upper side of all the heat dissipation fins (210) on the cooling pipe (201). The end of the heat conduction pipe (212) near the rectangular ring (207) is connected to the corresponding bimetallic sheet (213) on the same side.

5. The dual-loop battery cooler structure according to claim 1, characterized in that: The unfolding assembly includes a set of slide blocks (307) that are laterally slidably disposed on one side of the arc plate (302). The slide blocks (307) have vertical grooves (308) on their sides. A set of arc plates (302) with the same center as the hinge axis of the guide plate (301) are symmetrically installed on the upper edge of the guide plate (301). The side of the arc plate (302) is rotatably mounted with pulleys (309) that slide in the grooves (308) on the same side.

6. The dual-loop battery cooler structure according to claim 1, characterized in that: A set of air vents (13) is provided on the side of the outer shell (1) away from the rectangular opening (6). A set of crossbars (310) that pass through the U-shaped plate (7) on the same side are installed on the side of the slide (307). The ends of the two crossbars (310) away from the slide (307) are jointly equipped with baffles (311) that block all air vents (13). A spring (312) is connected between the baffle (311) and the U-shaped plate (7).

7. The dual-loop battery cooler structure according to claim 1, characterized in that: The edges of the heat dissipation fins (210) without the graphene sheet (211) extend to the inner wall of the outer shell (1). The two sides of the graphene sheet (211) are in contact with the U-shaped plate (7). The two heat dissipation fins (210) on each set of cooling pipes (201) are adjacent to each other in the same position. Together with the graphene sheet (211) and the inner wall of the outer shell (1), they form a transverse channel with open ends. After the airflow enters the outer shell (1), the airflow is allowed to circulate in this transverse channel.

8. The dual-loop battery cooler structure according to claim 1, characterized in that: A set of mounting blocks (303) is installed on the inner wall of the outer shell (1) on one side of the arc plate (302). A screw (304) is rotatably installed between the two mounting blocks (303) in the set. A micro motor (305) with the drive end connected to one end of the screw (304) is installed on the outer side of one of the mounting blocks (303). A threaded seat (306) is provided on the screw (304) that is slidably connected to the inner wall of the outer shell (1) and connected to the slide (307) on the same side.

9. The dual-loop battery cooler structure according to claim 1, characterized in that: A dust sensor (9) is installed at the center of the lower side of the housing (1), and a speed sensor (10) is installed on the inner wall of the housing (1).

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