Battery box with damage detection function

Abstract

The utility model provides a battery box with damage detection function, including protection case, detection mechanism, protection case is internally sealed setting, is provided with a plurality of detection mechanisms in protection case, is provided with the pressure -increasing valve on protection case, and the pressure -increasing valve can make the high pressure state in protection case, and detection mechanism can monitor the pressure change in protection case. The utility model discloses the setting of protection case, detection mechanism, and the pressure -increasing valve can make the high pressure state in protection case, and if the internal pressure of protection case is broken, will produce the change, and detection mechanism can monitor the pressure change in protection case and feed back, and can monitor whether battery box is damaged further.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery technology, specifically a battery box with damage detection function. Background Technology

[0002] New energy batteries are an important power source for new energy vehicles and are therefore of paramount importance. When in use, new energy batteries need to be installed in a housing. The housing not only facilitates the loading and protection of the new energy batteries but also ensures their safe operation.

[0003] When a car is driving on the road, it will encounter various complex road conditions, which may damage the bottom of the new energy battery box, causing the new energy battery to be exposed and affecting its safety. Utility Model Content

[0004] The technical problem to be solved by this invention is how to monitor whether the battery box is damaged.

[0005] This utility model solves the above-mentioned technical problems through the following technical means:

[0006] A battery box with damage detection function includes a protective box (1) and a detection mechanism (2); the protective box (1) is internally sealed, and multiple detection mechanisms (2) are provided inside the protective box (1). A pressure boosting valve (122) is provided on the protective box (1), which can create a high pressure state inside the protective box (1), and the detection mechanism (2) can monitor the pressure change inside the protective box (1).

[0007] Beneficial effects: Through the installation of the protective box and the detection mechanism, the pressurization valve can create a high-pressure state inside the protective box. If the protective box is damaged, the internal pressure will change. The detection mechanism can monitor the pressure change inside the protective box and provide feedback, thereby detecting whether the battery box is damaged.

[0008] Furthermore, the detection mechanism (2) includes a sleeve (21), a pressure column (22), a sensing component (23), a pressure relief pipe (24), and a reset component (25). The pressure column (22) is disposed in contact with the sleeve (21). The sensing component (23) is disposed below the pressure column (22) inside the sleeve (21). The pressure relief pipe (24) is disposed through the sleeve (21) and is tangent to the top wall of the sensing component (23). A one-way valve is disposed inside the pressure relief pipe (24). A groove (212) is opened on the inner wall of the sleeve (21). The reset component (25) is disposed inside the groove (212) and is connected to the pressure column (22).

[0009] Beneficial effects: Through the arrangement of sleeve, pressure column, sensing component, pressure relief pipe and reset component, the high pressure in the protective box causes the pressure column to press down against the sensing component inside the sleeve. The pressure relief pipe is used to release air when the pressure column is pressed down. If the protective box is damaged, the high pressure in the protective box will disappear, the reset component will drive the pressure column away from the sensing component, and the sensing component will send a feedback alarm to the outside.

[0010] Furthermore, the sensing component (23) includes an elastic element (231) and a pressure sensor, with the pressure sensor fixed on the bottom wall of the elastic element (231).

[0011] Beneficial effect: By setting the elastic element, it prevents the pressure column from moving to the bottom end of the sleeve, thus preventing the reset assembly from driving the pressure column to move upward and reset.

[0012] Furthermore, the elastic element (231) is made of elastic sponge.

[0013] Furthermore, the reset assembly (25) includes a reset spring (251), a baffle (252), and a limiting rod (253). The reset spring (251) is fixedly engaged at the bottom of the groove (212). The baffle (252) is fixed at the top of the reset spring (251). The limiting rod (253) is fixed at the top of the baffle (252). The vertical bar of the limiting rod (253) is fixed on the baffle (252), and the horizontal bar of the limiting rod (253) is fixed on the lower pressure column (22).

[0014] Furthermore, a disc (221) is fixed to the top of the pressure column (22), and the diameter of the disc (221) is larger than the diameter of the pressure column (22).

[0015] Beneficial effect: The disc design allows for greater pressure to be applied, causing the pressure column to move downwards.

[0016] Furthermore, the outer surface of the pressure column (22) and the inner wall of the sleeve (21) are both coated with sealing liquid.

[0017] Beneficial effect: By applying a sealant, the space formed between the bottom of the pressure column and the top of the sensing component is sealed.

[0018] Furthermore, the protective box (1) is equipped with a cooling mechanism (3) and a battery pack (4). The cooling mechanism (3) is equipped with a battery pack (4) and can dissipate heat from the battery pack (4).

[0019] Beneficial effect: The cooling mechanism can dissipate heat from the battery pack.

[0020] Furthermore, the cooling mechanism (3) includes a coolant tank (31), a coolant pump (32), a delivery pipe (33), a circulation pipe (34), and a return pipe (35); the coolant tank (31) stores coolant, and the coolant pump (32) is connected and fixed on the coolant tank (31). The top of the coolant pump (32) is equipped with a sensor connected to the central processing module. The output end of the coolant pump (32) is connected and fixed to the delivery pipe (33). The output end of the delivery pipe (33) is connected and fixed to the circulation pipe (34). The output end of the circulation pipe (34) is connected and fixed to the return pipe (35). The output end of the return pipe (35) is connected and fixed to the coolant tank (31).

[0021] Furthermore, the output end of the conveying pipe (33) is multi-ported, and each output end of the conveying pipe (33) is connected to and fixed with a circulation pipe (34). The output end of each circulation pipe (34) is connected to and fixed on the return pipe (35). The radii of the conveying pipe (33) and the return pipe (35) are both larger than the radii of each circulation pipe (34).

[0022] Beneficial effect: By setting the radius of the delivery pipe to be larger than that of each circulation pipe, it is ensured that the coolant inside the delivery pipe can be evenly distributed into each circulation pipe. Attached Figure Description

[0023] Figure 1 This is a perspective view of a battery box with damage detection function according to Embodiment 1 of the present invention;

[0024] Figure 2 This is a partial sectional view of a battery box with damage detection function according to Embodiment 1 of this utility model;

[0025] Figure 3 This is a partial sectional view of the detection mechanism in the battery box with damage detection function according to Embodiment 1 of this utility model;

[0026] Figure 4 This is a perspective view of the cooling mechanism in the battery box with damage detection function according to Embodiment 1 of this utility model. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Example 1

[0029] like Figure 1 , Figure 2 As shown, this embodiment provides a battery box with damage detection function, including a protective box 1, a detection mechanism 2, a cooling mechanism 3, and a battery pack 4.

[0030] like Figure 1 As shown, the protective box 1 includes a base plate 11 and a protective cover 12. The vertical section of the protective cover 12 is set in an inverted U-shape. The protective cover 12 is sealed and fixed on the base plate 11. Multiple mounting brackets 121 are fixed on the front and rear sides of the protective cover 12 for easy installation. A pressure boosting valve 122 is fixed through one side wall of the protective cover 12 for filling the protective box 1 with high-pressure gas.

[0031] like Figure 2 , Figure 3As shown, multiple detection mechanisms 2 are fixed at the edge of the top wall of the base plate 11. In this embodiment, two detection mechanisms 2 are fixed at each of the front and rear edges of the top wall of the base plate 11. The detection mechanism 2 includes a sleeve 21, a pressing column 22, a sensing component 23, a pressure relief pipe 24, and a reset component 25. A receiving groove 211 is provided on the sleeve 21. The sensing component 23 is fixed at the bottom of the receiving groove 211. The pressing column 22 is contacted and disposed in the receiving groove 211. The pressing column 22 can move up and down in the receiving groove 211. A pressure relief pipe 24 is fixed through the sleeve 21 near the sensing component 23. One end of the pressure relief pipe 24 is tangentially disposed with the sensing component 23. A one-way valve (not shown) is fixed inside the pressure relief pipe 24. The other end of the pressure relief pipe 24 passes through the protective cover 12, ensuring that gas can be discharged but cannot enter. A groove 212 is provided on the inner wall of the sleeve 21, and a reset component 25 is provided in the groove 212. The reset component 25 can drive the lower pressure column 22 to move upward. The sensing component 23 includes an elastic element 231 and a pressure sensor (not shown). The pressure sensor is fixed on the bottom wall of the elastic element 231. The setting of the elastic element 231 prevents the lower pressure column 22 from moving to the bottom end of the sleeve 21, so that the reset component 25 cannot drive the lower pressure column 22 to move upward and reset. In this embodiment, the elastic element 231 is made of elastic sponge, and the pressure sensor is existing technology, which can sense changes in pressure and trigger an alarm. The reset assembly 25 includes a reset spring 251, a baffle 252, and a limiting rod 253. The reset spring 251 is fixedly engaged at the bottom of the groove 212. The baffle 252 is fixed to the top of the reset spring 251, and the limiting rod 253 is fixed to the top of the baffle 252. The limiting rod 253 is inverted L-shaped, with its vertical section fixed to the baffle 252 and its horizontal section fixed to the pressing post 22. The limiting rod 253 can drive the baffle 252 and the reset spring 251 to move along the Z-axis within the groove 212. A disc 221 is fixed to the top of the pressing post 22. The diameter of the disc 221 is larger than the diameter of the pressing post 22. The disc 221 is designed to accommodate... The increased pressure causes the pressure column 22 to move downwards; both the outer surface of the pressure column 22 and the inner wall of the sleeve 21 are coated with a sealing liquid, which is Vaseline in this embodiment, to ensure the sealing of the space formed between the bottom of the pressure column 22 and the top of the sensing component 23. When the air pressure inside the protective box 1 increases, the air pressure in the space formed between the bottom of the pressure column 22 and the top of the sensing component 23 remains unchanged. As the air pressure inside the protective box 1 gradually increases, the pressure column 22 moves downwards due to the pressure difference, and the air in the space between the bottom of the pressure column 22 and the top of the sensing component 23 is discharged through the pressure relief pipe 24. At this time, the pressure column 22 presses against the upper surface of the sensing component 23 and continuously applies pressure to the sensing component 23.

[0032] like Figure 2 , Figure 4As shown, a cooling mechanism 3 is fixed in the middle of the top wall of the base plate 11. The cooling mechanism 3 is located inside the protective cover 12, and a battery pack 4 is fixed inside the cooling mechanism 3. The cooling mechanism 3 includes a coolant tank 31, a coolant pump 32, a delivery pipe 33, a circulation pipe 34, and a return pipe 35. The coolant tank 31 is fixed on the top wall of the base plate 11 and stores coolant. The coolant pump 32 is fixedly connected to the coolant tank 31. A sensor connected to the central processing module is provided on the top of the coolant pump 32. The central processing module can control the sensor and thus control the start and stop of the coolant pump 32. The output end of the coolant pump 32 is fixedly connected to the delivery pipe 33. The output end of the delivery pipe 33 is multi-port. In this embodiment, the output end of the delivery pipe 33 is three-port. The radius of the delivery pipe 33 is larger than the radius of each circulation pipe 34 to ensure that the coolant inside the delivery pipe 33 can be evenly distributed to the other three sets of circulation pipes 35. In section 4, each output end of the delivery pipe 33 is connected to and fixed with a circulation pipe 34. The output end of each circulation pipe 34 is connected to and fixed with a return pipe 35. The output end of the return pipe 35 is connected to and fixed with a coolant tank 31. Each circulation pipe 34 is set according to the shape of the battery pack 4. The battery pack 4 is placed in the space enclosed by each circulation pipe 34. The battery pack 4 is fixed to the top wall of the coolant tank 31. Each circulation pipe 34 is attached to the surface of the battery pack 4 to ensure uniform heat dissipation. The coolant flows back to the coolant tank 31 through the return pipe 35 and is then pumped into the circulation pipe 34 by the coolant pump 32. This allows the coolant inside the coolant tank 31 to flow and mix with the coolant in the delivery pipe 33 and the circulation pipe 34, improving the heat dissipation efficiency of the battery pack 4. The bottom of the coolant tank 31 can be set 1-2 cm away from the base plate 1 to prevent direct contact with the coolant tank 31 in case of collision damage to the bottom of the protective box 1.

[0033] In use, first connect the booster pump to the outside of the booster valve 122 and start the booster pump to increase the air pressure inside the protective box 1. The high pressure inside the protective box 1 forces the pressure column 22 downward, at which point the gas in the space between the bottom of the pressure column 22 and the top of the sensing component 23 is discharged, and the pressure column 22 presses against the surface of the sensing component 23, continuously applying pressure to the pressure sensor. Then, move the entire battery pack to the installation area of ​​the car for installation. The sensor on the top of the coolant pump 32, which is connected to the central processing module of the car, controls the start of the coolant pump 32. When the car starts, the coolant pump 32 can be started through the central processing module, so that the coolant inside the coolant pump 32 cools the battery pack 4 through the delivery pipe 33 and the circulation pipe 34, and then returns through the return flow. Pipe 35 returns to the coolant tank 31, allowing the coolant inside the coolant tank 31 to flow and mix with the coolant in the delivery pipe 33 and circulation pipe 34, improving the heat dissipation efficiency of the battery pack 4. If the bottom of the new energy vehicle is hit, causing the bottom of the protective box 1 to break, the air pressure inside the protective box 1 will decrease, making it impossible to apply downward pressure to the pressure column 22. At this time, the return spring 251 will rebound upward, causing the pressure column 22 to move upward through the limit rod 253. The pressure of the pressure column 22 on the pressure sensor will decrease or disappear. The pressure sensor will transmit this signal to the central processing module, and the central processing module will control the controller to alarm. At this time, the user can promptly discover the damage to the protective box 1 and carry out repairs, avoiding damage to the battery pack 4 due to the damage to the protective box 1.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery box with damage detection function, characterized in that, Includes a protective case (1) and a testing facility (2); The protective box (1) is internally sealed. Multiple detection mechanisms (2) are installed inside the protective box (1). A pressure boosting valve (122) is installed on the protective box (1). The pressure boosting valve (122) can create a high-pressure state inside the protective box (1). The detection mechanisms (2) can monitor the pressure changes inside the protective box (1).

2. The battery box with damage detection function according to claim 1, characterized in that: The detection mechanism (2) includes a sleeve (21), a pressure column (22), a sensing component (23), a pressure relief pipe (24), and a reset component (25). The pressure column (22) is disposed in contact with the sleeve (21). The sensing component (23) is disposed below the pressure column (22) inside the sleeve (21). The pressure relief pipe (24) is disposed through the sleeve (21) and is tangent to the top wall of the sensing component (23). A one-way valve is disposed inside the pressure relief pipe (24). A groove (212) is opened on the inner wall of the sleeve (21). The reset component (25) is disposed inside the groove (212) and is connected to the pressure column (22).

3. The battery box with damage detection function according to claim 2, characterized in that: The sensing component (23) includes an elastic element (231) and a pressure sensor, with the pressure sensor fixed on the bottom wall of the elastic element (231).

4. The battery box with damage detection function according to claim 3, characterized in that: The elastic element (231) is made of elastic sponge.

5. The battery box with damage detection function according to claim 2, characterized in that: The reset assembly (25) includes a reset spring (251), a baffle (252), and a limiting rod (253). The reset spring (251) is fixedly engaged at the bottom of the groove (212). The baffle (252) is fixed at the top of the reset spring (251). The limiting rod (253) is fixed at the top of the baffle (252). The vertical bar of the limiting rod (253) is fixed on the baffle (252), and the horizontal bar of the limiting rod (253) is fixed on the lower pressure column (22).

6. The battery box with damage detection function according to claim 2, characterized in that: A disc (221) is fixed to the top of the pressure column (22), and the diameter of the disc (221) is larger than the diameter of the pressure column (22).

7. The battery box with damage detection function according to claim 2, characterized in that: The outer surface of the pressure column (22) and the inner wall of the sleeve (21) are both coated with sealing liquid.

8. The battery box with damage detection function according to claim 1, characterized in that: The protective box (1) is equipped with a cooling mechanism (3) and a battery pack (4). The cooling mechanism (3) is equipped with a battery pack (4) and can dissipate heat from the battery pack (4).

9. The battery box with damage detection function according to claim 8, characterized in that: The cooling mechanism (3) includes a coolant tank (31), a coolant pump (32), a delivery pipe (33), a circulation pipe (34), and a return pipe (35). The coolant tank (31) stores coolant. The coolant pump (32) is connected and fixed on the coolant tank (31). The top of the coolant pump (32) is equipped with a sensor connected to the central processing module. The output end of the coolant pump (32) is connected and fixed to the delivery pipe (33). The output end of the delivery pipe (33) is connected and fixed to the circulation pipe (34). The output end of the circulation pipe (34) is connected and fixed to the return pipe (35). The output end of the return pipe (35) is connected and fixed to the coolant tank (31).

10. The battery box with damage detection function according to claim 9, characterized in that: The output end of the conveying pipe (33) is multi-ported. Each output end of the conveying pipe (33) is connected to and fixed with a circulation pipe (34). The output end of each circulation pipe (34) is connected to and fixed on the return pipe (35). The radii of the conveying pipe (33) and the return pipe (35) are both larger than the radii of each circulation pipe (34).

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