Cooling device for high-rate lithium iron phosphate battery

Abstract

The invention relates to the technical field of lithium iron phosphate batteries, in particular to a high-rate lithium iron phosphate battery cooling device which comprises a storage box, a supporting frame and a supporting plate are fixedly connected into the storage box, and a cooling assembly and a driving assembly are arranged on the supporting frame; a monitoring assembly is arranged on the supporting plate; a temporary storage assembly and an auxiliary assembly are arranged at the bottom of the cooling assembly; the cooling assembly comprises a cooling cylinder and a controller. The two sides of the cooling cylinder fixedly communicate with an input pipe and an output pipe correspondingly. The output pipe fixedly communicates with a main passage and a first passage; the batteries are located above the main passage and the first passage, the bottoms of the batteries are fixedly communicated with second passages, and the second passages are communicated with the first passage. The cooling liquid is introduced through the input pipe, the temperature of each battery is monitored by using the temperature sensor, and on the basis of cooling of the main passage and the first passage, different batteries are independently cooled through the second passage, so that the cooling efficiency of the batteries is improved, and the potential safety hazard of the batteries is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium iron phosphate batteries, and particularly to a cooling device for high-rate lithium iron phosphate batteries. Background Art

[0002] A high-rate lithium iron phosphate battery refers to a lithium iron phosphate battery that can support high-current discharge. It can release a large amount of electrical energy in a short time to meet the energy requirements under high-intensity work. Such a battery not only has high-rate discharge ability but also usually has high-rate charging ability, which can significantly shorten the charging time. For devices that need to perform high-intensity work frequently, such as electric vehicles, mobile robots, and drones, high-rate lithium iron phosphate batteries can provide sufficient energy support to ensure the stable operation of the devices and improve work efficiency.

[0003] Generally speaking, when using a high-rate lithium iron phosphate battery, the lithium iron phosphate battery will release a large amount of heat. If the heat cannot be dissipated in time, it will cause the battery temperature to be too high, which will in turn affect the performance and lifespan of the battery. When the heat dissipation of the lithium iron phosphate battery is insufficient, it will cause the battery temperature to be too high, which will in turn affect the performance and lifespan of the battery and may also pose a safety hazard.

[0004] In summary, how to solve the problem of safety hazards caused by insufficient heat dissipation of lithium iron phosphate batteries has become a technical problem that needs to be urgently solved by those skilled in the art. Therefore, it is necessary to propose a cooling device for high-rate lithium iron phosphate batteries. Summary of the Invention

[0005] To solve the above problems, the present invention provides a cooling device for high-rate lithium iron phosphate batteries. Coolant is introduced through an input pipe, and temperature sensors are used to monitor the temperatures of each battery. On the basis of cooling the main passage and the first passage, the second passage is used to cool different batteries separately, improving the cooling efficiency of the batteries and reducing the safety hazards of the batteries.

[0006] To achieve the above object, the technical solution of the present invention is as follows: A cooling device for high-rate lithium iron phosphate batteries includes a storage tank. A support frame and a support plate are fixedly connected inside the storage tank. A plurality of batteries are detachably connected to the support plate. A cooling component for cooling the batteries and a driving component for driving the cooling component to rotate are provided on the support frame. A monitoring component for monitoring the temperatures of different batteries is provided on the support plate.

[0007] A temporary storage component for temporarily storing coolant and an auxiliary component for cooling the temporary storage component are provided at the bottom of the cooling component.

[0008] The cooling assembly includes a cooling cylinder and a controller. The cooling cylinder is fixedly connected to the support frame, and the controller is fixedly connected to the cooling cylinder. Input pipes and output pipes are respectively and fixedly communicated on both sides of the cooling cylinder, and one-way valves are fixedly communicated in both the input pipes and the output pipes. The output pipe is fixedly communicated with a main passage and a first passage, and the other ends of both the main passage and the first passage are fixedly communicated with the input pipe.

[0009] The batteries are all located above the main passage and the first passage. Second passages are fixedly communicated at the bottoms of the batteries, and the second passages are all communicated with the first passage. Solenoid valves are fixedly communicated at the connection points of the second passages and the first passage. The controller is used to control the opening and closing of the solenoid valves. Grooves are formed on the inner side wall of the cooling cylinder, and a plurality of sliding plates are slidably fitted in the grooves. The sliding plates are fixedly connected to the driving assembly.

[0010] The technical principle of the above solution is as follows: Coolant is input through the input pipe. The coolant is sucked from the cooling cylinder into the temporary storage assembly by the driving assembly, and the coolant in the temporary storage assembly is cooled again by the auxiliary assembly. Subsequently, the coolant is discharged into the output pipe by the driving assembly.

[0011] The batteries are cooled by the main passage and the first passage. The temperature of the batteries is monitored by the monitoring assembly. The controller controls the opening of the solenoid valve, so that the coolant enters the second passage to cool the battery with a high temperature separately.

[0012] The following beneficial effects are achieved by adopting the above solution:

[0013] 1. In the present invention, the coolant is circulated between the cooling cylinder and the temporary storage assembly by the driving assembly, and the coolant in the temporary storage assembly is cooled again by the auxiliary assembly, which can continuously provide low-temperature coolant for the batteries, greatly improving the cooling efficiency, ensuring that the heat generated during the high-rate charge and discharge process of the batteries can be taken away in time, maintaining the batteries within a suitable working temperature range, and effectively preventing the performance decline or damage of the batteries due to overheating.

[0014] 2. In the present invention, the temperature of different batteries is monitored in real time by the monitoring assembly, and the controller controls the opening and closing of the solenoid valve according to the monitoring data. When the temperature of a certain battery is high, the controller opens the corresponding solenoid valve to make the coolant enter the second passage at the bottom of the battery to cool it separately. This targeted cooling method can avoid over-cooling the batteries with normal temperature, improve the utilization efficiency of the cooling resources, and at the same time ensure that the high-temperature batteries can quickly cool down and extend the service life of the batteries.

[0015] Furthermore, the driving assembly includes a rotating disk, the rotating disk is eccentrically and rotatably connected to the inner side wall of the cooling cylinder close to the groove, a driving member is fixedly connected to the cooling cylinder, the controller is used to control the operation of the driving member, and the output shaft of the driving member penetrates through the cooling cylinder and is fixedly connected to the rotating disk.

[0016] A number of limiting grooves are formed in the rotating disk, and push plates are slidably fitted in the limiting grooves. The push plates are fixedly connected to the adjacent sliding plates. A number of infusion pipelines are fixedly connected inside the rotating disk. One ends of the infusion pipelines are communicated with the cooling cylinder, and the other ends of the infusion pipelines are communicated with the adjacent limiting grooves.

[0017] Beneficial effects: The push plates are fixedly connected to the sliding plates, thereby driving the sliding plates to slide in the grooves of the cooling cylinder. This sliding action can generate negative pressure suction and pressure in the limiting grooves, thereby sucking in and discharging the coolant through the infusion pipelines, efficiently transporting the coolant from the cooling cylinder to the temporary storage assembly, ensuring the circulating flow of the coolant, and improving the cooling efficiency.

[0018] Further, the temporary storage assembly includes a number of temporary storage boxes. The temporary storage boxes are fixedly connected to the side of the rotating disk away from the grooves. Through holes for the movement of the temporary storage boxes are formed in the cooling cylinder. The temporary storage boxes are respectively communicated with the adjacent limiting grooves and infusion pipelines.

[0019] Beneficial effects: The temporary storage boxes are fixedly connected to the side of the rotating disk away from the grooves and move as the rotating disk rotates. Under the action of the negative pressure suction of the push plates, the coolant enters the limiting grooves through the infusion pipelines and then enters the temporary storage boxes from the limiting grooves. It is beneficial for the auxiliary assembly to further dissipate the heat of the coolant in the temporary storage boxes.

[0020] Further, the auxiliary assembly includes an extension rod. One end of the extension rod is fixedly connected to the rotating disk coaxially. The end of the extension rod away from the rotating disk penetrates through the cooling cylinder and is fixedly connected with a fan blade.

[0021] Beneficial effects: The extension rod is fixedly connected to the rotating disk coaxially. When the rotating disk rotates, the extension rod rotates synchronously, thereby driving the fan blade to rotate at a high speed. The rotation of the fan blade can accelerate the flow of the surrounding air, thereby taking away the heat dissipated from the surfaces of the temporary storage boxes and the cooling cylinder, improving the heat dissipation efficiency, and enabling the coolant in the temporary storage boxes to cool down faster.

[0022] Further, the monitoring assembly includes a number of temperature sensors. The temperature sensors are fixedly connected to the bottom of the battery.

[0023] The controller is used to analyze the temperature data monitored by the temperature sensors. A temperature standard value is preset in the controller. When the temperature data monitored by the temperature sensors exceeds the temperature standard value, the controller controls the solenoid valve to open, and cools the battery through the second passage.

[0024] Beneficial effects: The temperature sensors are fixedly connected to the bottom of the battery, and can directly and accurately measure the temperature of the battery. Since the temperature change at the bottom can better reflect the overall heat generation situation of the battery during the working process of the battery, this arrangement can obtain the key temperature data of the battery in real time, providing an accurate basis for subsequent cooling control.

[0025] Furthermore, a transparent window is fixedly connected to the temporary storage box.

[0026] Beneficial effects: The staff can observe the change of the coolant in the temporary storage box through the transparent window, and can replace the coolant in time when the color of the coolant changes.

[0027] Furthermore, an alarm is fixedly connected to the storage box, and the controller is used to control the opening and closing of the alarm.

[0028] Beneficial effects: Through the alarm of the alarm, the staff can be reminded to check and repair the battery in the storage box in time.

[0029] Furthermore, a liquid level sensor is fixedly connected to the temporary storage box, and a liquid level standard value is preset in the controller. The controller is used to analyze the liquid level data monitored by the liquid level sensor, and when the liquid level data exceeds the liquid level standard value, the controller controls the alarm to start.

[0030] Beneficial effects: By detecting the liquid level of the coolant in the temporary storage box, the quantity of the coolant can be judged. When the liquid level of the coolant is lower than the liquid level standard value, it indicates that the coolant in the whole device is insufficient and the coolant needs to be replenished in time.

[0031] Furthermore, a plurality of heat dissipation holes are formed in the bottom of the storage box.

[0032] Beneficial effects: The heat dissipation holes provide a channel for air to enter and exit the storage box. When the battery generates heat during the charging and discharging process, the external cold air can enter the interior of the storage box through the heat dissipation holes and perform heat exchange with the heated battery cells and components. At the same time, the internal hot air can also be discharged from the heat dissipation holes in time, forming an effective air convection, accelerating the dissipation of heat and improving the heat dissipation efficiency.

[0033] Furthermore, a shock pad is fixedly connected to the bottom of the storage box.

[0034] Beneficial effects: The shock pad can fully reduce the vibration generated by the storage box during use and improve the safety of the storage box during use.

[0035] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0036] Figure 1 It is an axonometric view of a cooling device for a large-rate lithium iron phosphate battery according to the present invention.

[0037] Figure 2 It is a front sectional view of a cooling device for a large-rate lithium iron phosphate battery according to the present invention.

[0038] Figure 3 Isometric view of the cooling component in the cooling device of a high-rate lithium iron phosphate battery according to the present invention.

[0039] Figure 4 Internal isometric view of the cooling component in the cooling device of a high-rate lithium iron phosphate battery according to the present invention.

[0040] Figure 5 Front sectional view of the cooling component in the cooling device of a high-rate lithium iron phosphate battery according to the present invention.

[0041] Figure 6 Top view of the bottom of the battery in the cooling device of a high-rate lithium iron phosphate battery according to the present invention.

[0042] Reference numerals in the accompanying drawings of the specification include: 1, storage tank; 2, battery; 3, shock pad; 4, cooling cylinder; 5, input pipe; 6, output pipe; 7, drive motor; 8, rotating disk; 9, push plate; 10, temporary storage box; 11, extension rod; 12, fan blade; 13, sliding plate; 14, infusion pipeline; 15, support plate; 16, support frame; 17, main passage; 18, first passage; 19, second passage; 20, solenoid valve; 21, temperature sensor; 22, alarm. Detailed Description of the Invention

[0043] The following is a more detailed description through specific embodiments:

[0044] Embodiment 1:

[0045] As shown in the Figures 1 - 6 accompanying drawings: A cooling device for a high-rate lithium iron phosphate battery includes a storage tank 1, a support frame 16 and a support plate 15 are fixedly connected by bolts inside the storage tank 1, several batteries 2 are detachably connected to the support plate 15, and a cooling component for cooling the batteries 2 and a drive component for driving the cooling component to rotate are provided on the support frame 16. A monitoring component for monitoring the temperatures of different batteries 2 is provided on the support plate 15. A temporary storage component for temporarily storing the coolant and an auxiliary component for cooling the temporary storage component are provided at the bottom of the cooling component.

[0046] As Figure 2 shown, the cooling component includes a cooling cylinder 4 and a controller. The cooling cylinder 4 is fixedly connected by bolts to the support frame 16, the controller is fixedly connected by screws to the cooling cylinder 4, an input pipe 5 and an output pipe 6 are respectively fixedly connected and communicated by screws on both sides of the cooling cylinder 4, and one-way valves are fixedly connected and communicated inside the input pipe 5 and the output pipe 6.

[0047] Combined with Figure 6As shown, the output pipe 6 is fixedly connected by screws to the main passage 17 and the first passage 18, and the other ends of the main passage 17 and the first passage 18 are both fixedly connected by screws to the input pipe 5. The batteries 2 are both located above the main passage 17 and the first passage 18, and the bottoms of the batteries 2 are both fixedly connected by screws to the second passage 19. The second passage 19 is connected to the first passage 18, and the connection between the second passage 19 and the first passage 18 is fixedly connected by screws to the solenoid valve 20. The controller is used to control the opening and closing of the solenoid valve 20.

[0048] As Figure 4 and Figure 5 shown, grooves are formed on the inner side wall of the cooling cylinder 4, and a plurality of sliding plates 13 are slidably fitted in the grooves. The sliding plates 13 are fixedly connected by screws to the driving assembly.

[0049] The driving assembly includes a rotating disk 8, and the rotating disk 8 is eccentrically rotatably connected to the inner side wall of the cooling cylinder 4 close to the groove. A driving member is fixedly connected to the cooling cylinder 4 by bolts. In this embodiment, the driving member is selected as the driving motor 7. The controller is used to control the operation of the driving motor 7, and the output shaft of the driving motor 7 penetrates through the cooling cylinder 4 and is fixedly connected to the rotating disk 8 by bolts. A plurality of limiting grooves are formed on the rotating disk 8, and a pushing plate 9 is slidably fitted in each limiting groove. The pushing plates 9 are fixedly connected by screws to the adjacent sliding plates 13. A plurality of infusion pipelines 14 are fixedly connected to the rotating disk 8 by screws. One end of each infusion pipeline 14 is connected to the cooling cylinder 4, and the other end of each infusion pipeline 14 is connected to the adjacent limiting groove.

[0050] The temporary storage assembly includes a plurality of temporary storage boxes 10, and the temporary storage boxes 10 are all fixedly connected to the rotating disk 8 on the side away from the groove by bolts. Through holes for the movement of the temporary storage boxes 10 are formed on the cooling cylinder 4. The temporary storage boxes 10 are respectively connected to the adjacent limiting grooves and infusion pipelines 14. The auxiliary assembly includes an extension rod 11. One end of the extension rod 11 is coaxially fixedly connected to the rotating disk 8 by bolts, and the end of the extension rod 11 away from the rotating disk 8 penetrates through the cooling cylinder 4 and is fixedly connected to a fan blade 12 by bolts.

[0051] The monitoring assembly includes a plurality of temperature sensors 21, and the temperature sensors 21 are all fixedly connected to the bottoms of the batteries 2 by screws. The controller is used to analyze the temperature data monitored by the temperature sensors 21. A temperature standard value is preset in the controller. When the temperature data monitored by the temperature sensors 21 exceeds the temperature standard value, the controller controls the solenoid valve 20 to open, and cools the batteries 2 through the second passage 19.

[0052] The specific implementation process is as follows: First, the staff needs to put the used batteries 2 into the storage box 1, and add the coolant into the cooling cylinder 4, the main passage 17 and the first passage 18 through the input pipe 5.

[0053] To Figure 4For example, after the battery 2 starts to be used, the staff can simultaneously control the driving motor 7 to start through the controller. When the driving motor 7 starts, the driving motor 7 will drive the rotating disk 8 to rotate. As the rotating disk 8 rotates, the rotating disk 8 will drive the pushing plate 9 to rotate. Since the pushing plate 9 is fixedly connected to the sliding plate 13 by screws, when the pushing plate 9 rotates, it will drive the sliding plate 13 to slide along the groove. As the sliding plate 13 slides along the groove, the pushing plate 9 will reciprocate along the limiting groove.

[0054] Combined with Figure 5 As shown, when the pushing plate 9 moves outward along the limiting groove, due to the movement of the pushing plate 9 at this time, a negative pressure suction will be generated in the limiting groove. At this time, the coolant in the cooling cylinder 4 will be sucked into the limiting groove through the infusion pipeline 14 under the action of the negative pressure suction, and then enter the temporary storage box 10.

[0055] As the rotating disk 8 rotates, the rotating disk 8 will simultaneously drive the extension rod 11 to rotate, thereby driving the fan blade 12 to rotate. When the coolant enters the temporary storage box 10, as the fan blade 12 rotates continuously, it will continuously dissipate heat from the outer wall of the temporary storage box 10, thereby cooling the coolant in the temporary storage box 10.

[0056] When the pushing plate 9 moves inward along the limiting groove, due to the movement of the pushing plate 9, a negative pressure suction will be generated in the cooling cylinder 4. At this time, the coolant located in the temporary storage box 10 will re-enter the cooling cylinder 4 through the infusion pipeline 14, and then be output to the main passage 17 and the first passage 18 through the output pipe 6.

[0057] Combined with Figure 6 As shown, the temperature sensor 21 will continuously monitor the temperatures of different batteries 2. A temperature standard value is preset in the controller. When the controller monitors through the temperature sensor 21 that the temperature of one of the batteries 2 exceeds the temperature standard value, at this time, the controller will open the solenoid valve 20 in the second passage 19 at the bottom of the corresponding battery 2, so that the coolant can enter the second passage 19 through the first passage 18 to cool the battery 2 separately, thereby further dissipating heat from the battery 2.

[0058] Embodiment 2:

[0059] The difference from the above embodiment is that a transparent window is fixedly connected to the temporary storage box 10 by screws.

[0060] The specific implementation process is as follows: The staff can observe the circulation of the coolant in the temporary storage box 10 through the transparent window. When the staff observes that the coolant becomes turbid, it means that the coolant is contaminated to a certain extent. Continuing to use it will affect the refrigeration effect, and the coolant needs to be replaced in time.

[0061] Embodiment 3:

[0062] As Figure 1 shown, the difference from the above embodiments is that an alarm 22 is fixedly connected to the storage box 1 by screws, and the controller is used to control the opening and closing of the alarm 22.

[0063] The specific implementation process is as follows: During the charging and discharging process of the battery 2, if the temperature of the battery 2 is too high, it may cause thermal runaway, leading to serious safety accidents such as the battery 2 catching fire and exploding. The controller can monitor the temperature of the battery 2 in real time through the temperature sensor 21. When the temperature exceeds the preset standard value, it immediately controls the alarm 22 to sound an alarm.

[0064] Embodiment 4:

[0065] The difference from the above embodiments is that a liquid level sensor is fixedly connected to the temporary storage box 10 by screws, and a liquid level standard value is preset in the controller. The controller is used to analyze the liquid level data monitored by the liquid level sensor. When the liquid level data exceeds the liquid level standard value, the controller controls the alarm 22 to start.

[0066] The specific implementation process is as follows: The liquid level sensor can monitor the liquid level change in real time. When the coolant leaks, the liquid level in the temporary storage box 10 will drop. When the liquid level sensor monitors that the liquid level data in the temporary storage box 10 is lower than the normal liquid level standard value, the controller will control the alarm 22 to start, thereby reminding the staff to replenish the coolant in time.

[0067] Embodiment 5:

[0068] The difference from the above embodiments is that a number of heat dissipation holes are opened at the bottom of the storage box 1.

[0069] The specific implementation process is as follows: The heat dissipation holes form a circulation channel for air at the bottom of the storage box 1. Under the rotation of the fan blade 12, the outside air will more easily enter the storage box 1, accelerating air circulation and improving the heat dissipation efficiency of the storage box 1.

[0070] Embodiment 6:

[0071] As Figure 1 shown, the difference from the above embodiments is that a shock pad 3 is fixedly connected to the bottom of the storage box 1 by screws.

[0072] The specific implementation process is as follows: The shock pad 3 is beneficial to reducing the vibration generated by the battery 2 during operation, improving the safety of the battery 2 during use, and thus further protecting the battery 2.

[0073] Obviously, the above embodiments are merely examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A cooling device for a high-rate lithium iron phosphate battery, comprising a storage box (1), a support frame (16) and a support plate (15) are fixedly connected to the storage box (1), and a plurality of batteries (2) are detachably connected to the support plate (15), characterized in that: The support frame (16) is provided with a cooling assembly for cooling the battery (2) and a driving assembly for driving the cooling assembly to rotate; A monitoring component for monitoring the temperature of different batteries (2) is provided on the support plate (15); A temporary storage component for temporarily storing coolant and an auxiliary component for cooling the temporary storage component are provided at the bottom of the cooling component; The cooling assembly comprises a cooling cylinder (4) and a controller, wherein the cooling cylinder (4) is fixedly connected to a support frame (16), and the controller is fixedly connected to a storage box (1). An input pipe (5) and an output pipe (6) are fixedly connected to both sides of the cooling cylinder (4), and a one-way valve is fixedly connected inside the input pipe (5) and the output pipe (6); The output pipe (6) is fixedly connected to the main passage (17) and the first passage (18), and the other ends of the main passage (17) and the first passage (18) are fixedly connected to the input pipe (5); The batteries (2) are located above the main passage (17) and the first passage (18); the bottom of the batteries (2) is fixedly connected to a second passage (19); the second passage (19) is connected to the first passage (18); the connection point between the second passage (19) and the first passage (18) is fixedly connected to a solenoid valve (20); and the controller is used to control the opening and closing of the solenoid valve (20); A groove is formed on the inner wall of the cooling cylinder (4), and a plurality of sliding plates (13) are slidably fitted in the groove; The sliding plate (13) is fixedly connected to the driving assembly.

2. The cooling device for a high-rate lithium iron phosphate battery according to claim 1, characterized in that: The driving assembly comprises a rotating disk (8), the rotating disk (8) is eccentrically rotatably connected to the inner wall of the cooling cylinder (4) close to the groove, a driving member is fixedly connected to the cooling cylinder (4), a controller is used to control the operation of the driving member, and an output shaft of the driving member passes through the cooling cylinder (4) and is fixedly connected to the rotating disk (8); The rotating disk (8) is provided with a plurality of limit grooves, each of which is slidably fitted with a push plate (9), and each of the push plates (9) is fixedly connected to a sliding plate (13) adjacent thereto; A plurality of liquid infusion pipes (14) are fixedly connected inside the rotating disk (8), one end of each of the liquid infusion pipes (14) is connected to the cooling cylinder (4), and the other end of each of the liquid infusion pipes (14) is connected to a limiting groove adjacent thereto.

3. The cooling device for a high-rate lithium iron phosphate battery according to claim 2, characterized in that: The temporary storage assembly comprises a plurality of temporary storage boxes (10), each of which is fixedly connected to a side of the rotating disk (8) away from the groove, and a through hole for the temporary storage boxes (10) to move is opened on the cooling cylinder (4); The temporary storage box (10) is respectively connected to the limiting groove and the liquid delivery pipeline (14) adjacent thereto.

4. The cooling device for a high-rate lithium iron phosphate battery according to claim 3, characterized in that: The auxiliary component comprises an extension rod (11), one end of the extension rod (11) is coaxially fixedly connected to the rotating disk (8), and one end of the extension rod (11) away from the rotating disk (8) passes through the cooling cylinder (4) and is fixedly connected to a fan blade (12).

5. The cooling device for high-rate lithium iron phosphate battery according to claim 4, characterized in that: The monitoring component comprises a plurality of temperature sensors (21), and the temperature sensors (21) are all fixedly connected to the bottom of the battery (2); The controller is used to analyze the temperature data monitored by the temperature sensor (21). A temperature standard value is preset in the controller. When the temperature data monitored by the temperature sensor (21) exceeds the temperature standard value, the controller controls the solenoid valve (20) to open, and cools the battery (2) through the second passage (19).

6. The cooling device for a high-rate lithium iron phosphate battery according to claim 5, characterized in that: A transparent window is fixedly connected to the temporary storage box (10).

7. The cooling device for a high-rate lithium iron phosphate battery according to claim 6, characterized in that: An alarm (22) is fixedly connected to the storage box (1), and the controller is used to control the opening and closing of the alarm (22).

8. The cooling device for a high-rate lithium iron phosphate battery according to claim 7, characterized in that: A liquid level sensor is fixedly connected inside the temporary storage box (10), and a liquid level standard value is preset in the controller; The controller is used to analyze the liquid level data monitored by the liquid level sensor. When the liquid level data exceeds the liquid level standard value, the controller controls the alarm (22) to start.

9. The cooling device for a high-rate lithium iron phosphate battery according to claim 8, characterized in that: The bottom of the storage box (1) is provided with a plurality of heat dissipation holes.

10. The cooling device for high-rate lithium iron phosphate battery according to claim 9, characterized in that: A shock-absorbing pad (3) is fixedly connected to the bottom of the storage box (1).

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