A battery cover plate assembly with enhanced sealing

By designing a battery cover assembly with clamping and disassembly mechanisms, the problem of insufficient sealing between the battery cover and the casing is solved, achieving stable fixing and convenient disassembly of the cover, thereby enhancing the sealing and safety of the battery.

CN224472609UActive Publication Date: 2026-07-07ANHUI ZHIJUN TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI ZHIJUN TECHNOLOGY CO LTD
Filing Date
2025-10-21
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The existing battery cover and casing have insufficient sealing, which leads to electrolyte loss, affecting the energy storage capacity and service life.

Method used

A battery cover assembly including a clamping mechanism and a disassembly mechanism was designed. The clamping mechanism achieves initial fixation and sealing of the cover by rotating the outer shell, telescopic rod and fixed shell, etc. The disassembly mechanism achieves quick locking and unlocking by cooperating with a cross rod and a spring, thereby enhancing the sealing performance between the cover and the outer shell.

Benefits of technology

It improves the battery's sealing performance, reduces electrolyte loss, enhances battery performance and safety, and facilitates the maintenance and replacement of the cover, reducing operational difficulty.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model relates to the field of battery cover plates and discloses a battery cover plate assembly with enhanced sealing performance. It includes a battery casing, a clamping mechanism on the side wall of the battery casing, and a disassembly mechanism on the top of the battery casing. The clamping mechanism includes a rotating housing, the side wall of which is fixedly connected to the side wall of the battery casing. A telescopic rod is slidably and rotatably connected to the inner wall of the rotating housing, and a fixed cylinder is slidably and rotatably connected to the outer wall of the telescopic rod. In this utility model, after the battery cover is closed by gripping the handle, the telescopic rods on both sides of the clamping mechanism push forward to the corresponding inner walls of the rotating housing and lock in place, initially securing the connection. Then, rotating the stud causes the fixed housing to move downwards, allowing it to slide along the inner wall of the battery cover and abut against the battery casing, further enhancing the sealing performance. This reduces problems such as poor energy storage, increased internal resistance, and plate corrosion, ensuring performance and safety.
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Description

Technical Field

[0001] This utility model relates to the field of battery cover plates, and more particularly to a battery cover plate assembly that enhances sealing performance. Background Technology

[0002] A storage battery is an electrochemical device that converts chemical energy into electrical energy. It stores and releases energy through electrochemical reactions of internal components such as positive and negative plates and electrolyte. During charging, external electrical energy causes a reversible chemical reaction inside, converting electrical energy into stored chemical energy. During discharging, the stored chemical energy is converted back into electrical energy for output, providing power support for various devices. It has the core characteristics of being rechargeable and dischargeable and capable of independent power supply, and is currently a widely used energy storage and power supply device.

[0003] Battery covers must be installed correctly, maintained regularly, and disassembled according to regulations. Before installation, clean the top of the battery and check the condition of the cover. Align the cover with the positioning structure and press it in place or tighten the screws diagonally. After installation, confirm that the cover is sealed and ventilated. Regularly check the appearance, clear the vent holes, and check for leaks according to the usage scenario. For minor leaks, apply sealant; for serious leaks, replace the cover. Before disassembly, disconnect the power and take precautions. Operate according to the specifications for snap-on, screw-fixed, and other types of covers. After disassembly, clean the cover and protect the inside of the battery. Do not disassemble maintenance-free battery covers yourself. In low-temperature environments, pay attention to the cover's toughness; in high-temperature environments, pay attention to deformation and replace it with a high-temperature resistant cover if necessary. At the same time, avoid using tape to replace damaged covers, failing to clean blocked holes, and misaligned installation, etc., to ensure the protective effect and extend battery life.

[0004] An unreliable seal between the battery cover and the casing can easily lead to leakage, causing electrolyte loss and preventing the battery from charging and discharging properly. This results in reduced energy storage capacity, shorter battery life, and the inability to fully charge the battery. To address these issues, a battery cover assembly with enhanced sealing is proposed. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a battery cover assembly with enhanced sealing performance, aiming to solve the problem that the seal between the battery cover and the outer casing may not be reliable enough in the prior art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a battery cover assembly with enhanced sealing performance, comprising a battery casing, a clamping mechanism provided on the side wall of the battery casing, and a disassembly mechanism provided on the top of the battery casing. The clamping mechanism includes a rotating casing, the side wall of which is fixedly connected to the side wall of the battery casing. A telescopic rod is slidably and rotatably connected to the inner wall of the rotating casing, and a fixed cylinder is slidably and rotatably connected to the outer wall of the telescopic rod. A battery cover is rotatably connected to the outer wall of the telescopic rod. A paddle is fixedly connected to the end of the telescopic rod away from the rotating casing. A fixed plate is fixedly connected to the inner wall of the fixed cylinder. The side wall of the fixed plate is elastically connected to the side wall of the paddle via a spring. A stud is threadedly connected to the inner wall of the battery cover. A fixed casing is rotatably connected to the bottom end of the stud. A fixed shell is fixedly connected to the bottom end of the fixed casing. The outer wall of the fixed shell is slidably connected to the inner wall of the battery cover. A sealing ring is fixedly connected to the inner wall of the fixed shell.

[0007] As a further description of the above technical solution:

[0008] The outer wall of the paddle is slidably connected to the inner wall of the fixed cylinder, the outer wall of the paddle is slidably connected to the inner wall of the rotating housing, and the outer wall of the rotating housing is slidably connected to the inner wall of the battery cover.

[0009] As a further description of the above technical solution:

[0010] One end of the spring is fixedly connected to the side wall of the fixed plate, and the other end of the spring is fixedly connected to the side wall of the lever.

[0011] As a further description of the above technical solution:

[0012] The clamping mechanism also includes a handle, the bottom end of which is fixedly connected to the top of the battery cover, and a positioning hole is provided on the outer wall of the battery casing.

[0013] As a further description of the above technical solution:

[0014] The disassembly mechanism includes a cross-shaped rotating cylinder, the outer wall of which is rotatably connected to the inner wall of a stud, and a cross-shaped rotating rod slidably connected to the inner wall of the cross-shaped rotating cylinder, the outer wall of which is slidably connected to the inner wall of the stud.

[0015] As a further description of the above technical solution:

[0016] A fixing block is fixedly connected to the bottom end of the cross-shaped rotating rod, and the outer wall of the fixing block is slidably and rotatably connected to the inner wall of the fixed outer shell.

[0017] As a further description of the above technical solution:

[0018] The inner wall of the fixed outer shell is elastically connected to the bottom end of the fixed block by spring two.

[0019] As a further description of the above technical solution:

[0020] One end of the second spring is fixedly connected to the inner wall of the fixed housing, and the other end of the second spring abuts against the bottom end of the fixed block.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, after the clamping mechanism closes the battery cover by holding the handle, the telescopic rods on both sides of the inner wall are pushed into the inner wall of the corresponding rotating outer shell and locked in place, thus initially stabilizing the connection. Then, the rotating stud drives the fixed outer shell to move down, so that the fixed shell slides along the inner wall of the battery cover and abuts against the battery outer shell, further enhancing the sealing performance, thereby reducing problems such as poor energy storage, increased internal resistance, and plate corrosion, and ensuring performance and safety.

[0023] 2. In this utility model, the disassembly mechanism can pass through the cross cylinder by pressing and rotating the cross rod. The spring of the second spring can quickly lock the fixing block, achieving rapid locking. Reverse operation can easily release the lock, which facilitates the overall disassembly of the fixing shell, fixing shell and sealing ring, making it convenient to replace parts, improving maintenance efficiency, reducing operation difficulty, and ensuring the stability of the locked state. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of a battery cover assembly for enhancing sealing performance proposed in this utility model;

[0025] Figure 2 A bottom view cross-sectional structural diagram of a battery cover assembly for enhancing sealing performance according to this utility model.

[0026] Figure 3 This is a schematic cross-sectional view of the rotating outer shell structure of a battery cover assembly for enhancing sealing performance proposed in this utility model.

[0027] Figure 4 This is a schematic cross-sectional view of the fixed outer shell structure of a battery cover assembly for enhancing sealing performance proposed in this utility model.

[0028] Figure 5 This is a schematic diagram of the stud structure of a battery cover assembly for enhancing sealing performance proposed in this utility model.

[0029] Legend:

[0030] 1. Battery casing; 2. Clamping mechanism; 211. Battery cover; 212. Rotating casing; 213. Telescopic rod; 214. Fixing plate; 215. Spring 1; 216. Paddle; 217. Fixing cylinder; 218. Stud; 219. Fixing casing; 220. Fixing shell; 221. Sealing ring; 222. Positioning hole; 223. Handle; 3. Disassembly mechanism; 311. Cross-shaped rotating rod; 312. Fixing block; 313. Cross-shaped rotating cylinder; 314. Spring 2. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1-3The present invention provides an embodiment of a battery cover assembly with enhanced sealing performance, comprising a battery housing 1, a clamping mechanism 2 provided on the side wall of the battery housing 1, and a disassembly mechanism 3 provided on the top of the battery housing 1. The clamping mechanism 2 includes a rotating housing 212, which provides sliding and rotational space for a telescopic rod 213, thereby cooperating with the telescopic rod 213 to achieve initial fixing and rotational opening and closing of the battery cover 211. The side wall of the rotating housing 212 is fixedly connected to the side wall of the battery housing 1, and the inner wall of the rotating housing 212 is slidably and rotatably connected to the telescopic rod 213. The telescopic rod 213 slides and rotates along the rotating housing 212 and the fixed cylinder 217, connecting the battery cover 211 and the rotating housing 212 to achieve fixing and opening / closing of the cover. The telescopic rod 213 is slidably and rotatably connected to a fixed cylinder 217 on its outer wall. The fixed cylinder 217 supports the fixed plate 214 and spring 215, providing sliding space for the lever 216 and assisting in the stable operation of the telescopic rod 213. A battery cover 211 is rotatably connected to the outer wall of the telescopic rod 213. The battery cover 211 covers the top of the battery casing 1, forming a sealed protection, and supports components such as the stud 218 and the fixed shell 220. Sealing and opening / closing are achieved through the clamping mechanism 2. A lever 216 is fixedly connected to the end of the telescopic rod 213 away from the rotating casing 212. The lever 216 slides along the rotating casing 212 and the fixed cylinder 217. When the spring 215 is compressed, the limit of the telescopic rod 213 is released, making it easy for the battery cover 211 to rotate open or close. The body is disassembled. A fixing plate 214 is fixedly connected to the inner wall of the fixing cylinder 217. The fixing plate 214 is fixed to the inner wall of the fixing cylinder 217, providing support for the spring 215 and ensuring that the spring 215 generates a stable rebound thrust on the lever 216. The side wall of the fixing plate 214 is elastically connected to the side wall of the lever 216 through the spring 215. The spring 215 connects the fixing plate 214 and the lever 216, providing an elastic restoring force so that the lever 216 maintains its limit on the telescopic rod 213 under normal conditions, ensuring the cover is fixed and stable. A stud 218 is threadedly connected to the inner wall of the battery cover 211. The stud 218 rotates along the thread on the inner wall of the battery cover 211, driving the fixed outer shell 219 to move downward, providing power for the fixed shell 220 to abut against the battery outer shell 1, enhancing the sealing. For sealing effect, the bottom end of the stud 218 is rotatably connected to the fixed housing 219. The fixed housing 219 moves down with the stud 218, causing the fixed housing 220 to move synchronously. The fixed block 312 and the spring 314 of the disassembly mechanism 3 are supported. The bottom end of the fixed housing 219 is fixedly connected to the fixed housing 220. The fixed housing 220 slides along the inner wall of the battery cover 211 and abuts against the battery housing 1 after moving down. It works with the sealing ring 221 to enhance the sealing performance between the cover and the housing. The outer wall of the fixed housing 220 is slidably connected to the inner wall of the battery cover 211. The inner wall of the fixed housing 220 is fixedly connected to the sealing ring 221. The sealing ring 221 is fixed to the inner wall of the fixed housing 220. When it fits the battery housing 1, it fills the gaps and further improves the sealing performance to prevent dust and liquid from entering.

[0033] Reference Figures 3-5 The outer wall of the paddle 216 is slidably connected to the inner wall of the fixed cylinder 217, the outer wall of the paddle 216 is slidably connected to the inner wall of the rotating housing 212, the outer wall of the rotating housing 212 is slidably connected to the inner wall of the battery cover 211, one end of the spring 215 is fixedly connected to the side wall of the fixed plate 214, and the other end of the spring 215 is fixedly connected to the side wall of the paddle 216. The clamping mechanism 2 also includes a handle 223, which is fixed to the top of the battery cover 211 to provide a grip for the operator, making it convenient to lift or rotate the battery cover 211 and improve the ease of operation. The bottom end of the handle 223 is fixedly connected to the top of the battery cover 211. A positioning hole 222 is provided on the outer wall of the battery housing 1 for installing the battery housing 1.

[0034] Reference Figures 2-4 The disassembly mechanism 3 includes a cross-shaped rotating cylinder 313, which rotates along the inner wall of the stud 218, providing sliding and rotational support for the cross-shaped rotating rod 311. The cross-shaped rotating cylinder 313, in conjunction with the cross-shaped rotating rod 311, achieves locking adjustment. The outer wall of the cross-shaped rotating cylinder 313 is rotatably connected to the inner wall of the stud 218. The cross-shaped rotating rod 311 is slidably connected to the inner wall of the cross-shaped rotating cylinder 313. The cross-shaped rotating rod 311 slides along the cross-shaped rotating cylinder 313 and the stud 218. When pressed and rotated, it drives the fixing block 312 to move, thereby locking and unlocking the outer casing 219. The outer wall of the cross-shaped rotating rod 311 is slidably connected to the inner wall of the stud 218, and the bottom end of the cross-shaped rotating rod 311 is fixedly connected to the fixing block 3. 12. The fixing block 312 slides and rotates with the cross rod 311. When the spring 314 rebounds, it locks the fixing housing 219. When it rotates in the opposite direction, it is unlocked. The outer wall of the fixing block 312 slides and rotates to be connected to the inner wall of the fixing housing 219. The inner wall of the fixing housing 219 is elastically connected to the bottom end of the fixing block 312 through the spring 314. The spring 314 connects the fixing housing 219 and the fixing block 312, providing elastic rebound thrust so that the fixing block 312 locks the fixing housing 219, ensuring stable locking. One end of the spring 314 is fixedly connected to the inner wall of the fixing housing 219, and the other end of the spring 314 abuts against the bottom end of the fixing block 312.

[0035] Working principle: Hold the handle 223 and place the battery cover 211 on top of the battery casing 1. Push the telescopic rods 213 on the inner walls of the battery cover 211 into the inner walls of the corresponding rotating casing 212 to lock them in place. Rotate the stud 218, which will cause the fixed casing 219 to move down. The fixed casing 220 will slide along the inner wall of the battery cover 211 and abut against the battery casing 1, further enhancing the sealing of the cover.

[0036] Pushing the lever 216 inside one side of the rotating housing 212 causes the lever 216 to slide along the inner wall of the rotating housing 212, compressing the spring 215. At the same time, the telescopic rod 213 slides and rotates within the rotating housing 212 and the fixed cylinder 217. The battery cover 211 can be rotated along the inner wall of the other side of the rotating housing 212 to open the cover. Pushing the levers 216 on both sides allows the battery cover 211 to be removed with one click. Pushing the lever 216 again when removing the cover allows the battery cover 211 to detach from the telescopic rod 213 for replacement.

[0037] Press down on the cross rod 311, and the cross rod 311 slides along the inner wall of the cross cylinder 313, causing the fixing block 312 to slide along the inner wall of the fixing housing 219, compressing the second spring 314; rotate the cross rod 311 to the designated position, and the second spring 314 rebounds to lock the fixing block 312 into the appropriate position. By pressing the cross cylinder 313, the cross cylinder 313 drives the fixing block 312 to rotate in the opposite direction, releasing the locking of the stud 218 to the fixing housing 219, which facilitates the subsequent overall disassembly of the fixing housing 219, the fixing shell 220 and the sealing ring 221 for easy replacement.

[0038] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 battery cover assembly with enhanced sealing performance, comprising a battery casing (1), characterized in that: The battery casing (1) is provided with a clamping mechanism (2) on its side wall and a disassembly mechanism (3) on its top. The clamping mechanism (2) includes a rotating housing (212), the side wall of which is fixedly connected to the side wall of the battery housing (1). A telescopic rod (213) is slidably and rotatably connected to the inner wall of the rotating housing (212). A fixed cylinder (217) is slidably and rotatably connected to the outer wall of the telescopic rod (213). A battery cover (211) is rotatably connected to the outer wall of the telescopic rod (213). A lever (216) is fixedly connected to one end of the telescopic rod (213) away from the rotating housing (212). The inner wall of the fixed cylinder (217) is... A fixed plate (214) is fixedly connected. The side wall of the fixed plate (214) is elastically connected to the side wall of the lever (216) via a spring (215). A stud (218) is threadedly connected to the inner wall of the battery cover (211). A fixed housing (219) is rotatably connected to the bottom end of the stud (218). A fixed housing (220) is fixedly connected to the bottom end of the fixed housing (219). The outer wall of the fixed housing (220) is slidably connected to the inner wall of the battery cover (211). A sealing ring (221) is fixedly connected to the inner wall of the fixed housing (220).

2. The battery cover assembly with enhanced sealing performance according to claim 1, characterized in that: The outer wall of the paddle (216) is slidably connected to the inner wall of the fixed cylinder (217), the outer wall of the paddle (216) is slidably connected to the inner wall of the rotating housing (212), and the outer wall of the rotating housing (212) is slidably connected to the inner wall of the battery cover (211).

3. The battery cover assembly with enhanced sealing performance according to claim 1, characterized in that: One end of the spring (215) is fixedly connected to the side wall of the fixing plate (214), and the other end of the spring (215) is fixedly connected to the side wall of the lever (216).

4. The battery cover assembly with enhanced sealing performance according to claim 1, characterized in that: The clamping mechanism (2) also includes a handle (223), the bottom end of which is fixedly connected to the top of the battery cover (211), and the outer wall of the battery casing (1) is provided with a positioning hole (222).

5. A battery cover assembly with enhanced sealing performance according to claim 1, characterized in that: The disassembly mechanism (3) includes a cross-shaped rotating cylinder (313), the outer wall of which is rotatably connected to the inner wall of the stud (218), and a cross-shaped rotating rod (311) is slidably connected to the inner wall of the cross-shaped rotating cylinder (313), the outer wall of which is slidably connected to the inner wall of the stud (218).

6. A battery cover assembly with enhanced sealing performance according to claim 5, characterized in that: The bottom end of the cross-shaped rotating rod (311) is fixedly connected to a fixing block (312), and the outer wall of the fixing block (312) is slidably and rotatably connected to the inner wall of the fixed outer shell (219).

7. A battery cover assembly with enhanced sealing performance according to claim 6, characterized in that: The inner wall of the fixed outer shell (219) is elastically connected to the bottom end of the fixed block (312) by spring two (314).

8. A battery cover assembly with enhanced sealing performance according to claim 7, characterized in that: One end of the second spring (314) is fixedly connected to the inner wall of the fixed outer shell (219), and the other end of the second spring (314) abuts against the bottom end of the fixed block (312).