Automobile battery structure

By introducing a lifting waterproof structure and a blower mechanism into the battery system of new energy vehicles, the problem of rainwater intrusion into the battery system under extreme climates has been solved, achieving waterproof and moisture-proof protection and intelligent power switching of the battery, thereby improving the safety and stability of the battery system.

CN122136548APending Publication Date: 2026-06-02GUANGZHOU PEIZHENG TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU PEIZHENG TECH CO LTD
Filing Date
2026-03-07
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The battery systems of new energy vehicles lack effective lifting or drainage mechanisms in extreme climates, making the battery casing susceptible to rainwater intrusion, which may cause short circuits and safety accidents. Furthermore, the switching control between the main and auxiliary batteries lacks intelligent management.

Method used

An automotive battery structure was designed, comprising a lifting and waterproofing structure, an electric push rod, a blower mechanism, and an auxiliary structure. After power switching, the auxiliary battery is lifted to prevent rainwater immersion, and the blower mechanism and ventilation duct system are used for cooling and waterproofing protection.

Benefits of technology

It effectively prevents rainwater from entering the battery, protects the battery, ensures the safety and stability of the battery system under extreme weather conditions, and enables intelligent switching between main and auxiliary batteries as well as waterproof and moisture-proof functions.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses an automotive battery structure, relating to the field of new energy vehicle technology. It includes a mounting plate, a main battery, a secondary battery, and a power switching mechanism. The main battery is mounted on top of the mounting plate, which has a lifting and waterproofing structure. This structure includes a base box and two electric push rods, both mounted on top of the mounting plate. A storage box is slidably disposed inside the base box, and a one-way valve and a connecting plate are located on the top of the storage box. The connecting plate is fixedly connected to one end of each electric push rod. This automotive battery structure allows for switching to the secondary battery when the main battery is affected by rain and cannot function. It also lifts the secondary battery to prevent its bottom from getting damp, and a blower mechanism can be used to expel air from inside the storage box, preventing rainwater from entering through the ventilation openings of the ventilation plate.
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Description

Technical Field

[0001] This invention relates to the field of new energy vehicle technology, and in particular to a vehicle battery structure. Background Technology

[0002] In the core power system of new energy vehicles, the power battery is a key component determining the overall vehicle performance. Its energy density, cycle life, safety, and environmental adaptability directly affect the vehicle's range, operational stability, and user safety experience. Currently, mainstream new energy vehicles generally use lithium-ion batteries as their power source, which are typically integrated in a modular form under the vehicle chassis or in specific areas of the body, and installed using fixed brackets. Some new energy vehicles are equipped with dual-battery systems to improve range and redundant power supply capabilities; however, the switching control method between the main and auxiliary batteries is relatively simple, lacking an intelligent management mechanism, and the battery casing is easily infiltrated by rainwater, leading to short circuits in the internal cells and even safety accidents. Especially under extreme weather conditions, such as floods and typhoons, traditional battery structures lack effective lifting or drainage mechanisms, failing to achieve dynamic protection. Summary of the Invention

[0003] The main objective of this invention is to provide an automotive battery structure that, by setting up a lifting and waterproof structure, facilitates the lifting of the auxiliary battery after the power switch between the main battery and the auxiliary battery, thus preventing its bottom from being soaked by rainwater.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An automotive battery structure includes a mounting plate, a main battery, a secondary battery, and a power switching mechanism. The main battery is disposed on top of the mounting plate, and the top of the mounting plate is provided with a lifting and waterproof structure. The lifting and waterproof structure includes a base box and two electric push rods. The base box and electric push rods are both mounted on the top of the mounting plate. A storage box is slidably arranged inside the base box. A one-way valve and a connecting plate are arranged on the top of the storage box. The connecting plate is fixedly connected to one end of the electric push rod. Four sets of blower mechanisms, three fixing plates, and a bottom plate are arranged inside the storage box. The fixing plates are fixedly connected to the storage box, and the bottom plate is fixedly connected to the fixing plates. Two ventilation plates are fixedly arranged at the bottom inside the storage box, and four ventilation plates are arranged on the outside of the storage box.

[0005] As a preferred embodiment of the present invention, the outer side of the bottom box has two circular holes and four grooves, and the outer side of the storage box has two circular holes and four square holes.

[0006] As a preferred embodiment of the present invention, the outer side of the storage box is provided with four storage slots, the inner side of the storage slots is fixedly provided with sealing gaskets, and the positions of the storage slots and the second ventilation plate are matched, and the positions of the first blower mechanism and the second ventilation plate are matched.

[0007] As a preferred embodiment of the present invention, both the first ventilation plate and the second ventilation plate have several ventilation openings on their exteriors, and the auxiliary battery is installed on the top of the base plate.

[0008] As a preferred embodiment of the present invention, the top of the main battery is provided with a first line, the top of the auxiliary battery is provided with a second line, the storage box is penetrated by the second line, and one end of both the first line and the second line is connected to the power switching mechanism.

[0009] As a preferred embodiment of the present invention, the inner side of the storage box is provided with two sets of auxiliary structures. The auxiliary structures include a ventilation pipe, two fixing boxes, two guide rods, two triangular blocks, a baffle, a sealing plate, and two springs. The ventilation pipe is fixedly installed inside the circular hole, the fixing box is fixedly installed inside the square hole, the guide rod and the fixing box are connected through each other, the triangular blocks and the baffle are fixedly connected to the guide rods, the sealing plate and the baffle are fixedly connected, the spring is installed between one side of the triangular block and one inner end of the fixing box, and the spring is located on the periphery of the corresponding guide rod. The triangular block and the groove are adaptively matched.

[0010] As a preferred technical solution of the present invention, a second ventilation pipe is fixedly installed on the inner side of the first circular hole, and a second blower mechanism is connected through the second ventilation pipe. The bottom of the second blower mechanism is fixedly connected to the mounting plate. The diameters of the first ventilation pipe and the second ventilation pipe are the same, and when the storage box is not lifted by the electric push rod, the centers of the first ventilation pipe and the second ventilation pipe coincide.

[0011] The beneficial effects that can be achieved by the above embodiments of the present invention include: 1. By setting up a lifting waterproof structure, it is beneficial to lift the auxiliary battery after the power switch between the main battery and the auxiliary battery, so as to prevent its bottom from being soaked by rainwater. At the same time, the air inside the storage box can be blown out through the ventilation port of the ventilation plate through the blower, preventing rainwater from entering the storage box through the ventilation port of the ventilation plate and affecting the use of the auxiliary battery. Meanwhile, the air enters through the ventilation pipe of the bottom box, so that the air inside the bottom box and the storage box can form an in-out flow, which can cool the auxiliary battery. At the same time, the bottom plate can prevent the auxiliary battery from directly contacting the auxiliary battery with the humid air. 2. By setting a sealing gasket in conjunction with the lifting waterproof structure, it is beneficial to protect the second ventilation panel. When the storage box is not lifted, the second ventilation panel can be sealed and protected to prevent rainwater from flowing into the ventilation opening of the second ventilation panel. 3. By setting up an auxiliary structure in conjunction with the lifting and waterproofing structure, it is beneficial to open the ventilation pipe when the storage box is not lifted, so that gas can enter the interior of the storage box through the ventilation pipe. At the same time, the sealing plate can prevent the humid gas from directly contacting the auxiliary battery. After the storage box is lifted, the sealing plate can be used to seal the ventilation pipe to prevent gas from entering the interior of the storage box through the ventilation pipe. 4. By setting up blower mechanism two, ventilation pipe two, and lifting waterproof structure and auxiliary structure, it is beneficial to blow external air into the interior of the storage box when the storage box is not lifted, so as to cool the internal auxiliary battery. At the same time, it can prevent rainwater from entering. With the help of one-way valve, the air inside the storage box can be discharged. After the storage box is lifted, external air can be blown into the interior of the bottom box. Then, with the help of blower mechanism one, the air inside the bottom box can be drawn into the storage box, and finally blown out of the ventilation port of ventilation plate two by blower mechanism one. 5. By setting up a bottom box and a storage box, it is beneficial to protect the auxiliary battery when it is not in use, and to prevent the auxiliary battery from being affected by rain. At the same time, the groove design facilitates the movement of the triangular block. Attached Figure Description

[0012] Figure 1 This is a schematic cross-sectional view of an automotive battery structure according to the present invention. Figure 2 This is a three-dimensional structural diagram showing the disassembled bottom box, storage box, and bottom plate of an automotive battery structure according to the present invention. Figure 3 This is a cross-sectional three-dimensional structural diagram of a blower assembly for an automotive battery structure according to the present invention. Figure 4 This is a three-dimensional structural diagram showing the storage slot and sealing gasket of a storage box for an automotive battery structure according to the present invention. Figure 5 This is a partial cross-sectional three-dimensional structural diagram of an automotive battery structure according to the present invention; Figure 6 This is a cross-sectional three-dimensional structural diagram of the blower mechanism 2 of an automotive battery structure according to the present invention; Figure 7 This is a schematic diagram of the overall three-dimensional structure of an automotive battery structure according to the present invention; Figure 8 This is a top view schematic diagram of the overall structure of an automotive battery according to the present invention.

[0013] In the diagram: 1. Mounting plate; 2. Main battery; 3. Secondary battery; 4. Circuit 1; 5. Circuit 2; 6. Power switching mechanism; 7. Lifting and waterproof structure; 8. Auxiliary structure; 9. Base box; 10. Storage box; 11. One-way valve; 12. Electric push rod; 13. Connecting plate; 14. Blower mechanism 1; 15. Ventilation plate 1; 16. Fixing plate; 17. Base plate; 18. Ventilation plate 2; 19. Circular hole 1; 20. Groove; 21. Circular hole 2; 22. Square hole; 23. Storage slot; 24. Sealing gasket; 25. Ventilation pipe 1; 26. Fixing box; 27. Guide rod; 28. Triangular block; 29. ​​Baffle; 30. Sealing plate; 31. Spring; 32. Ventilation pipe 2; 33. Blower mechanism 2. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0015] like Figures 1-8 As shown, an automotive battery structure includes a mounting plate 1, a main battery 2, a secondary battery 3, and a power switching mechanism 6. The main battery 2 is disposed on the top of the mounting plate 1, and a lifting and waterproofing structure 7 is provided on the top of the mounting plate 1. The lifting waterproof structure 7 includes a base box 9 and two electric push rods 12. The base box 9 and the electric push rods 12 are both installed on the top of the mounting plate 1. A storage box 10 is slidably arranged inside the base box 9. A one-way valve 11 and a connecting plate 13 are arranged on the top of the storage box 10. The connecting plate 13 is fixedly connected to one end of the electric push rod 12. Four sets of blower mechanisms 14, three fixing plates 16 and a bottom plate 17 are arranged inside the storage box 10. The fixing plates 16 are fixedly connected to the storage box 10, and the bottom plate 17 is fixedly connected to the fixing plates 16. Two ventilation plates 15 are fixedly arranged on the bottom inside the storage box 10, and four ventilation plates 18 are arranged on the outside of the storage box 10.

[0016] The lifting waterproof structure 7 can lift the auxiliary battery 3 after the main battery 2 and auxiliary battery 3 switch power, preventing its bottom from being soaked by rainwater. At the same time, the air inside the storage box 10 can be blown out through the ventilation port of the ventilation plate 18 by the blower 14, preventing rainwater from entering the storage box 10 through the ventilation port of the ventilation plate 18 and affecting the use of the auxiliary battery 3. Meanwhile, the air enters through the ventilation pipe 32 of the bottom box 9, so that the air inside the bottom box 9 and the storage box 10 can form an in-out flow, which can cool the auxiliary battery 3. At the same time, the bottom plate 17 can prevent the humid air from directly contacting the auxiliary battery 3.

[0017] In this embodiment, the bottom box 9 has two circular holes 19 and four grooves 20 on its exterior, and the storage box 10 has two circular holes 21 and four square holes 22 on its exterior.

[0018] Circular hole 19 is used to install ventilation pipe 22, groove 20 is for the movement of triangular block 28, circular hole 21 is used to install ventilation pipe 25, and square hole 22 is for installing fixing box 26.

[0019] In this embodiment, the storage box 10 has four storage slots 23 on its outside. A sealing gasket 24 is fixedly installed on the inner side of the storage slot 23. The storage slots 23 and the ventilation plate 28 are matched in position. The blower mechanism 14 and the ventilation plate 28 are matched in position.

[0020] In order to protect the second ventilation panel 18, the sealing gasket 24 can seal the second ventilation panel 18 when the storage box 10 is not lifted, so as to prevent rainwater from flowing into the ventilation opening of the second ventilation panel 18.

[0021] In this embodiment, several ventilation openings are provided on the exterior of both ventilation plate 15 and ventilation plate 18, and the auxiliary battery 3 is installed on the top of the base plate 17.

[0022] Gas enters through the vent of the ventilation plate 15 and is directly blocked by the bottom plate 17, causing the gas to flow to the inside of the storage box 10, thus preventing moisture from directly contacting the auxiliary battery 3 and affecting its use.

[0023] In this embodiment, the top of the main battery 2 is provided with line 4, the top of the auxiliary battery 3 is provided with line 5, the storage box 10 is penetrated by line 5, and one end of line 4 and line 5 are both connected to the power switching mechanism 6.

[0024] The power switching mechanism 6 can switch the main battery 2 to the auxiliary battery 3 for operation, and vice versa. The auxiliary battery 3 can also switch to the main battery 2 for operation through the power switching mechanism 6.

[0025] In this embodiment, two sets of auxiliary structures 8 are provided on the inner side of the storage box 10. The auxiliary structures 8 include a ventilation pipe 25, two fixing boxes 26, two guide rods 27, two triangular blocks 28, a baffle 29, a sealing plate 30, and two springs 31. The ventilation pipe 25 is fixedly installed inside the circular hole 21, and the fixing box 26 is fixedly installed inside the square hole 22. The guide rod 27 and the fixing box 26 are connected through each other. The triangular block 28 and the baffle 29 are both fixedly connected to the guide rod 27. The sealing plate 30 and the baffle 29 are fixedly connected. The spring 31 is located between one side of the triangular block 28 and one end of the inner side of the fixing box 26, and the spring 31 is located on the periphery of the corresponding guide rod 27. The triangular block 28 and the groove 20 are adaptively matched.

[0026] The auxiliary structure 8, in conjunction with the lifting and waterproofing structure 7, can open the ventilation pipe 25 when the storage box 10 is not lifted, allowing gas to enter the interior of the storage box 10 through the ventilation pipe 25. At the same time, the sealing plate 30 can prevent humid gas from directly contacting the auxiliary battery 3. After the storage box 10 is lifted, the sealing plate 30 can be used to seal the ventilation pipe 25 to prevent gas from entering the interior of the storage box 10 through the ventilation pipe 25.

[0027] In this embodiment, a second ventilation pipe 32 is fixedly installed inside the circular hole 19. The second ventilation pipe 32 is connected through a second blower mechanism 33. The bottom of the second blower mechanism 33 is fixedly connected to the mounting plate 1. The diameters of the first ventilation pipe 25 and the second ventilation pipe 32 are the same. When the storage box 10 is not lifted by the electric push rod 12, the centers of the first ventilation pipe 25 and the second ventilation pipe 32 coincide.

[0028] The blower mechanism 2 33 and the ventilation pipe 2 32, together with the lifting waterproof structure 7 and the auxiliary structure 8, can blow external air into the interior of the storage box 10 when the storage box 10 is not lifted, thereby cooling the internal auxiliary battery 3 and preventing rainwater from entering. With the help of the one-way valve 11, the air inside the storage box 10 can be discharged. After the storage box 10 is lifted, external air can be blown into the interior of the bottom box 9. With the help of the blower mechanism 14, the air inside the bottom box 9 can be drawn into the interior of the storage box 10, and finally blown out of the ventilation port of the ventilation plate 2 18 by the blower mechanism 14.

[0029] It should be noted that this invention is a car battery structure. When in use, the mounting plate 1 is installed in the corresponding position of the new energy vehicle to enable it to work. In the initial state, the storage box 10 is located inside the bottom box 9, that is, the bottom of the storage box 10 is flush with the inner bottom surface of the bottom box 9. At this time, the triangular block 28 is inside the storage box 10, the spring 31 is in a compressed state, the sealing plate 30 is pulled out from the inside of the ventilation pipe 1 25, the center of the ventilation pipe 1 25 and the ventilation pipe 2 32 coincide, the electric push rod 12 is in a retracted state, the blower mechanism 1 14 does not work, and at the same time the blower mechanism 2 33 works. The blower mechanism 2 33 causes the gas to enter the interior of the storage box 10 through the ventilation pipe 2 32 and the ventilation pipe 1 25 in sequence to cool down the auxiliary battery 3. The gas inside is discharged to the outside through the one-way valve 11, which can ensure that rainwater is prevented from entering the interior of the storage box 10 and affecting the auxiliary battery 3. When the main battery 2 stops working due to rain, the driver can switch the main battery 2 to the auxiliary battery 3 by operating the power switching mechanism 6. After the switch, the electric push rod 12 extends, and the electric push rod 12 acts on the connecting plate 13 to move the storage box 10 upward until the storage box 10 moves to the predetermined position and then stops. Figure 1As shown, the second ventilation plate 18 is exposed, the first blower mechanism 14 is working, and the second blower mechanism 33 blows the external gas into the bottom box 9. Under the action of the first blower mechanism 14, the gas inside the bottom box 9 is sucked into the storage box 10 through the ventilation port of the first ventilation plate 15 at the bottom of the storage box 10, and is sucked away by the first blower mechanism 14 and blown out from the ventilation port of the second ventilation plate 18. This can prevent rainwater from entering the storage box 10 through the ventilation port of the second ventilation plate 18, and at the same time, it can cool down the auxiliary battery 3. After the storage box 10 is lifted, the spring 31 loses its restraint and bounces back with the triangular block 28 and the guide rod 27, causing the triangular block 28 to pop out from the inside of the fixed box 26. Since the guide rod 27 and the baffle 29 are fixedly connected, the guide rod 27 moves synchronously with the baffle 29 and the sealing plate 30. The sealing plate 30 is inserted into the interior of the ventilation pipe 25 to seal the ventilation pipe 25, preventing rainwater from entering the interior of the storage box 10 from the ventilation pipe 25 and affecting the normal operation of the auxiliary battery 3. The connection method between the main battery 2 and the auxiliary battery 3 and the power switching mechanism 6 via line 1 4 and line 2 5, respectively, as well as the working principle of the power switching mechanism 6, are existing technologies and will not be elaborated further.

[0030] In some embodiments, the system further includes a processor (not shown) and an ultrasonic sensor (not shown). The ultrasonic sensor is positioned directly opposite the raised waterproof structure 7. The processor is signal-connected to the ultrasonic sensor. The ultrasonic sensor continuously sends ultrasonic signals to the raised waterproof structure 7, receives ultrasonic data, and sends it to the processor. The processor has a built-in trained variational autoencoder and a deep neural network. The input of the variational autoencoder is the ultrasonic data, and the output of the variational autoencoder is the internal simulated image of the raised waterproof structure 7. The input of the convolutional neural network is the internal simulated image of the raised waterproof structure 7, and the output of the convolutional neural network is the degree of structural damage to the raised waterproof structure 7. If the degree of structural damage to the raised waterproof structure 7 is greater than a threshold, the processor sends an alarm signal to the control port of the user.

Claims

1. A car battery structure, comprising a mounting plate (1), a main battery (2), a secondary battery (3), and a power switching mechanism (6), wherein the main battery (2) is disposed on the top of the mounting plate (1), characterized in that: The top of the mounting plate (1) is provided with a lifting waterproof structure (7); The lifting waterproof structure (7) includes a base box (9) and two electric push rods (12). The base box (9) and the electric push rods (12) are both installed on the top of the mounting plate (1). A storage box (10) is slidably arranged inside the base box (9). A one-way valve (11) and a connecting plate (13) are arranged on the top of the storage box (10). One end of the connecting plate (13) and the electric push rod (12) are fixedly connected. Four sets of blower mechanism one (14), three fixing plates (16) and a bottom plate (17) are arranged inside the storage box (10). The fixing plate (16) is fixedly connected to the storage box (10). The bottom plate (17) is fixedly connected to the fixing plate (16). Two ventilation plates one (15) are fixedly arranged on the bottom of the inner side of the storage box (10). Four ventilation plates two (18) are arranged on the outside of the storage box (10).

2. The automotive battery structure according to claim 1, characterized in that: The bottom box (9) has two circular holes (19) and four grooves (20) on its exterior, and the storage box (10) has two circular holes (21) and four square holes (22) on its exterior.

3. The automotive battery structure according to claim 1, characterized in that: The storage box (10) has four storage slots (23) on its outside. A sealing gasket (24) is fixedly installed on the inside of the storage slot (23). The storage slot (23) and the second ventilation plate (18) are matched in position. The first blower mechanism (14) and the second ventilation plate (18) are matched in position.

4. The automotive battery structure according to claim 1, characterized in that: The ventilation plate 1 (15) and ventilation plate 2 (18) are provided with several ventilation openings on the outside, and the auxiliary battery (3) is installed on the top of the base plate (17).

5. The automotive battery structure according to claim 1, characterized in that: The main battery (2) has a first line (4) on its top, and the auxiliary battery (3) has a second line (5) on its top. The storage box (10) is penetrated by the second line (5), and one end of the first line (4) and the second line (5) are connected to the power switching mechanism (6).

6. The automotive battery structure according to claim 2, characterized in that: The inner side of the storage box (10) is provided with two sets of auxiliary structures (8). The auxiliary structures (8) include a ventilation pipe (25), two fixing boxes (26), two guide rods (27), two triangular blocks (28), a baffle (29), a sealing plate (30), and two springs (31). The ventilation pipe (25) is fixedly installed inside the circular hole (21). The fixing box (26) is fixedly installed inside the square hole (22). The guide rod (27) and the fixing box (26) are connected through. The triangular block (28) and the baffle (29) are both fixedly connected to the guide rod (27). The sealing plate (30) and the baffle (29) are fixedly connected. The spring (31) is located between one side of the triangular block (28) and one end of the inner side of the fixing box (26), and the spring (31) is located outside the corresponding guide rod (27). The triangular block (28) and the groove (20) are adaptively matched.

7. The automotive battery structure according to claim 6, characterized in that: A second ventilation pipe (32) is fixedly installed on the inner side of the first circular hole (19). The second ventilation pipe (32) is connected to a second blower mechanism (33). The bottom of the second blower mechanism (33) is fixedly connected to the mounting plate (1). The diameters of the first ventilation pipe (25) and the second ventilation pipe (32) are the same. When the storage box (10) is not lifted by the electric push rod (12), the centers of the first ventilation pipe (25) and the second ventilation pipe (32) coincide.