Low-speed vehicle intelligent lithium battery protection device

Abstract

This utility model discloses a low-speed vehicle intelligent lithium battery protection device, including a lithium battery body, which is located inside a housing. A top cover is connected to the top of the housing by a first bolt. The top cover has a positive terminal connection post and a negative terminal connection post, and a placement groove is provided on the top cover. A battery manager is located inside the placement groove. A lower pressure plate is provided on one side of the placement groove. A rubber pad is fixedly connected to the bottom end of the lower pressure plate. A screw is connected to the top end of the lower pressure plate through a bearing. A threaded hole is provided on the top cover, and the threaded hole is threadedly connected to the screw. This utility model, by providing a threaded hole on the top cover and a screw connected to the lower pressure plate inside, and installing a rubber pad at the bottom end of the lower pressure plate, allows the lower pressure plate to abut against the lithium battery body after the lithium battery body is placed inside the housing by rotating the screw. This design can not only effectively fix the lithium battery body and prevent it from shaking inside the housing, but also play a certain buffering role.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium battery protection devices, specifically to an intelligent lithium battery protection device for low-speed vehicles. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and employs a non-aqueous electrolyte solution; therefore, they are also known as lithium metal batteries. Compared to other types of batteries, lithium-ion batteries have many unique advantages. First, they have a high charge density, meaning that lithium-ion batteries can store more energy in the same volume and weight. Second, lithium-ion batteries have a relatively long lifespan, maintaining stable performance even after multiple charge-discharge cycles. However, these advantages also come with a higher unit cost, making lithium-ion batteries relatively expensive in certain applications.

[0003] Despite its numerous advantages, lithium-ion batteries are inherently fragile. External impacts and shocks can easily damage critical components such as electrodes and separators, leading to performance degradation or even battery failure. Therefore, specialized protective devices are essential for ensuring the safe and stable operation of lithium-ion batteries. However, existing lithium-ion battery protection devices have several shortcomings in practical applications. The most significant problem is their inability to effectively secure the battery, causing it to move around inside the casing. This movement not only accelerates wear and tear but can also damage the internal structure, ultimately affecting battery lifespan and safety. Furthermore, due to the ineffective securing properties of the protection devices, lithium-ion batteries are prone to displacement during transportation and use, increasing the risk of damage.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a low-speed vehicle intelligent lithium battery protection device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A low-speed vehicle intelligent lithium battery protection device includes a lithium battery body with an inner shell. A top cover is connected to the top of the outer shell by a first bolt. The top cover has a positive terminal connection post and a negative terminal connection post. The top cover has a placement slot with a battery manager inside. A lower pressure plate is provided on one side of the placement slot. A rubber pad is fixedly connected to the bottom of the lower pressure plate. A screw is connected to the top of the lower pressure plate through a bearing. The top cover has a threaded hole that is threadedly connected to the screw.

[0008] Furthermore, two limit rods are fixedly connected to the lower pressure plate, with one end of each limit rod penetrating the top cover.

[0009] Furthermore, the outer casing has a groove, the inside of which is a phase change material layer, and the top cover has a sealing gasket that matches the groove.

[0010] Furthermore, a temperature sensor is located on one side of the battery manager, and the temperature sensor is electrically connected to the battery manager.

[0011] Furthermore, the temperature sensor is located inside the placement slot, which has an opening, and the temperature sensor is positioned above the opening.

[0012] Furthermore, a sealing cover is provided on the outside of the placement slot, and the sealing cover is connected to the top cover by a second bolt.

[0013] Furthermore, mounting plates are fixedly connected to both sides of the outer casing, and handles are rotatably connected inside the mounting plates.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) By setting threaded holes on the top cover and connecting the lower pressure plate with a screw inside, and installing a rubber pad at the bottom of the lower pressure plate, this design allows the lower pressure plate to abut against the lithium battery body after the lithium battery body is placed inside the casing by rotating the screw. This design not only effectively fixes the lithium battery body and prevents it from shaking inside the casing, but also provides a certain cushioning effect. The soft material of the rubber pad can absorb some of the impact force when the lithium battery is subjected to external impact, thereby reducing damage to the lithium battery. In addition, the rubber pad can also prevent the lithium battery from directly contacting hard materials, avoiding scratches or damage to the battery surface.

[0016] (2) By providing a sealing cover on the outside of the placement slot, it is convenient to maintain and upgrade the battery manager and temperature sensor by removing the sealing cover. This design allows users to avoid disassembling the entire protection device.

[0017] This allows for easy access to all components inside the placement slot, greatly improving the convenience of maintenance and upgrades. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a front view of a low-speed vehicle intelligent lithium battery protection device according to an embodiment of the present utility model;

[0020] Figure 2 This is a structural diagram of the internal structure of the housing of a low-speed vehicle intelligent lithium battery protection device according to an embodiment of the present utility model.

[0021] Figure 3 This is a screenshot of a low-speed vehicle intelligent lithium battery protection device according to an embodiment of the present utility model;

[0022] Figure 4 This is a structural diagram of the top cover of a low-speed vehicle intelligent lithium battery protection device according to an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Lithium battery body; 2. Outer casing; 3. Top cover; 4. Positive terminal connection post; 5. Negative terminal connection post; 6. Placement slot; 7. Battery manager; 8. Lower pressure plate; 9. Rubber pad; 10. Screw; 11. Threaded hole; 12. Limiting rod; 13. Groove; 14. Phase change material layer; 15. Sealing gasket; 16. Temperature sensor; 17. Opening; 18. Sealing cover; 19. Second bolt; 20. Mounting plate; 21. Handle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] According to an embodiment of this utility model, a low-speed vehicle intelligent lithium battery protection device is provided.

[0027] Example 1

[0028] like Figures 1-4As shown, the low-speed vehicle intelligent lithium battery protection device according to an embodiment of this utility model includes a lithium battery body 1, which is disposed inside a housing 2. A top cover 3 is connected to the top of the housing 2 by a first bolt. The top cover 3 is provided with a positive electrode connection post 4 and a negative electrode connection post 5. A placement groove 6 is provided on the top cover 3, and a battery manager 7 is disposed inside the placement groove 6. The battery manager 7 is electrically connected to the lithium battery body 1. The battery manager 7 has a built-in wireless transmission module and can monitor the lithium battery in real time to prevent various unpredictable events from occurring. In case of an accident or battery failure, the power supply is disconnected. A lower pressure plate 8 is located on one side of the placement slot 6. A rubber pad 9 is fixedly connected to the bottom of the lower pressure plate 8, and a screw 10 is connected to the top of the lower pressure plate 8 via a bearing. A threaded hole 11 is provided on the top cover 3, and the threaded hole 11 is threadedly connected to the screw 10. Two limit rods 12 are fixedly connected to the lower pressure plate 8, with one end of each limit rod 12 penetrating the top cover 3. By setting the limit rods 12, the lower pressure plate 8 is prevented from rotating during movement, and the movement distance of the lower pressure plate 8 is limited. With the above solution, after the lithium battery body 1 is placed inside the outer casing 2, the top cover 3 is fixed to the top of the outer casing 2 using the first bolt. Then, by rotating the screw 10, the lower pressure plate 8 is moved downwards, causing the rubber pad 9 of the lower pressure plate 8 to abut against the lithium battery body 1, thus fixing the lithium battery body 1 and preventing it from shaking.

[0029] like Figures 1-4 As shown, the outer casing 2 has a groove 13, and the inside of the groove 13 has a phase change material layer 14. The phase change material in the phase change material layer 14 is paraffin wax. The top cover 3 has a sealing gasket 15, which matches the groove 13. The battery manager 7 has a temperature sensor 16 on one side, which is electrically connected to the battery manager 7. The temperature sensor 16 is located inside the placement slot 6, which has an opening 17. The temperature sensor 16 is located above the opening 17. The outside of the placement slot 6 has a sealing cover 18, which is connected to the top cover 3 by a second bolt 19. The outer casing 2 has mounting plates 20 fixedly connected to both sides, and the mounting plates 20 have handles 21 rotatably connected inside. Through the above solution, by setting a phase change material layer 14 inside the groove 13 of the outer casing 2, heat can be effectively absorbed and released, maintaining the battery pack in the optimal temperature range. In addition, a sealing gasket 15 is provided on the top cover 3, which matches the groove 13 of the outer casing 2 to prevent leakage of the phase change material layer 14 during the phase change process, which could affect the electronic components inside the outer casing 2. Furthermore, by setting a temperature sensor 16 through the opening 17, the surface temperature of the lithium battery can be accurately detected. When the temperature is too high, the battery manager 7 can disconnect the power supply and send the information about the high temperature to the user receiver through the wireless transmission module, so that the user can check it in time.

[0030] In summary, by utilizing the above-mentioned technical solution of this utility model, a threaded hole 11 is provided on the top cover 3, and a screw 10 is provided inside to connect the lower pressure plate 8. Simultaneously, a rubber pad 9 is installed at the bottom of the lower pressure plate 8. This design allows the lower pressure plate 8 to abut against the lithium battery body 1 after the lithium battery body 1 is placed inside the outer casing 2 by rotating the screw 10. This design not only effectively fixes the lithium battery body 1, preventing it from shaking inside the outer casing 2, but also provides a certain cushioning effect. The soft material of the rubber pad 9 can absorb some of the impact force when the lithium battery is subjected to external impact, thereby reducing damage to the lithium battery. Furthermore, the rubber pad 9 can prevent the lithium battery from directly contacting hard materials, avoiding scratches or damage to the battery surface. Additionally, the sealing cover 18 on the outside of the placement slot 6 facilitates maintenance and upgrades of the battery manager 7 and temperature sensor 16 by removing the sealing cover 18. This design allows users to easily access the various components inside the placement slot 6 without disassembling the entire protective device, thus greatly improving the convenience of maintenance and upgrades.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low-speed vehicle intelligent lithium battery protection device, characterized in that, The battery includes a lithium battery body (1), which is located inside a housing (2). A top cover (3) is connected to the top of the housing (2) by a first bolt. The top cover (3) has a positive electrode connection post (4) and a negative electrode connection post (5). The top cover (3) has a placement groove (6). A battery manager (7) is located inside the placement groove (6). A lower pressure plate (8) is located on one side of the placement groove (6). A rubber pad (9) is fixedly connected to the bottom of the lower pressure plate (8). A screw (10) is connected to the top of the lower pressure plate (8) through a bearing. A threaded hole (11) is provided on the top cover (3). The threaded hole (11) is threadedly connected to the screw (10).

2. The low-speed vehicle intelligent lithium battery protection device according to claim 1, characterized in that, A limiting rod (12) is fixedly connected to the lower pressure plate (8). There are two limiting rods (12), and one end of the limiting rod (12) is connected through the top cover (3).

3. The low-speed vehicle intelligent lithium battery protection device of claim 1, wherein, The outer shell (2) is provided with a groove (13), and a phase change material layer (14) is provided inside the groove (13). The top cover (3) is provided with a sealing gasket (15), and the sealing gasket (15) matches the groove (13).

4. The low-speed vehicle intelligent lithium battery protection device of claim 1, wherein, A temperature sensor (16) is provided on one side of the battery manager (7), and the temperature sensor (16) is electrically connected to the battery manager (7).

5. The low-speed vehicle intelligent lithium battery protection device according to claim 4, characterized in that, The temperature sensor (16) is located inside the placement groove (6), and the placement groove (6) has an opening (17) inside, with the temperature sensor (16) located above the opening (17).

6. The low-speed vehicle intelligent lithium battery protection device according to claim 1, characterized in that, The outer side of the placement groove (6) is provided with a sealing cover (18), which is connected to the top cover (3) by a second bolt (19).

7. The low-speed vehicle intelligent lithium battery protection device of claim 1, wherein, Mounting plates (20) are fixedly connected to both sides of the outer shell (2), and handles (21) are rotatably connected inside the mounting plates (20).

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