Mounting cover plate structure of square lithium battery PACK

By designing a separately movable cover structure and a gear rack mechanism, the problem of inconvenient disassembly of the square lithium battery PACK cover structure was solved, enabling convenient disassembly and protection of individual batteries and improving maintenance efficiency.

CN223815783UActive Publication Date: 2026-01-20JIANGXI EURASIA AFRICA VEHICLE IND CO LTD
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Patent Information

Application Number
CN202520213761.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2026-01-20
Estimated Expiration
2035-02-11

AI Technical Summary

Technical Problem

The existing mounting cover structure of square lithium battery packs is not convenient enough during disassembly and maintenance, making it difficult to efficiently remove individual cells and potentially damaging the battery.

Method used

A separately movable cover structure was designed. The cover and rack are moved by a handle. Combined with gears and reciprocating screws, the individual batteries can be easily disassembled and fixed. A rubber protective pad is used to prevent battery damage.

Benefits of technology

It enables convenient disassembly and fixing of individual batteries, saving time, improving maintenance efficiency, and protecting the integrity of the batteries.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223815783U_ABST
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Abstract

The utility model relates to the technical field of square lithium battery installation structures, and discloses a square lithium battery PACK installation cover plate structure which comprises a box body, a cover plate body is arranged on the box body, a sliding groove is formed in the inner wall of the cover plate body, a sealing plate is installed in the sliding groove in a sliding mode, a fixing plate is fixedly installed on the inner wall of the cover plate body, and the fixing plate is fixedly installed on the inner wall of the cover plate body. According to the technical scheme, the cover bodies which can move independently are arranged, so that when a single battery needs to be replaced, the whole cover plate body does not need to be opened, replacement can be completed, the replacement efficiency is improved, and the replacement cost is reduced. By arranging the protection pad and the moving plate which are made of rubber materials, the single batteries are prevented from being clamped and damaged, use is more convenient, all structures are matched with one another, time is saved, and higher efficiency is achieved.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of square lithium battery mounting structures, in particular to a mounting cover plate structure of a square lithium battery PACK. BACKGROUND

[0002] In recent years, China's new energy vehicles have achieved remarkable development results. As the core component of new energy vehicles, the reliable and scientific grouping of power batteries has always been an important research topic in the field of new energy vehicles, especially in the field of pure electric vehicles. The grouping design of power batteries not only involves the series and parallel connection between power battery monomers, the reliable fixation of power batteries, but also involves the effective protection of power batteries. Lithium ion batteries have quickly become the standard power supply for portable devices. Lithium ion batteries can provide the same energy as nickel-hydrogen batteries, but can reduce about 35% in weight, and the advantages that lithium ion batteries have no "memory effect" and contain no toxic substances are also important factors for making them the standard power supply for power batteries. Among them, the square lithium battery has a simpler structure and is more convenient for assembling the power battery PACK than the cylindrical lithium battery, and is more and more widely used in new energy vehicles.

[0003] When the lithium battery pack is installed, the battery box and the cover plate are needed to fix it, and part of the monomer batteries inside the lithium battery pack can be disassembled, so that the battery can be conveniently repaired when it is aging or fails, which requires that the cover plate and the fixation of the monomer battery are also convenient to disassemble. Therefore, a mounting cover plate structure of a square lithium battery PACK is needed. CONTENT OF THE INVENTION

[0004] The application aims to provide a mounting cover plate structure of a square lithium battery PACK, which solves the problems raised in the background art.

[0005] The application provides a mounting cover plate structure of a square lithium battery PACK, which comprises a box body, a cover plate body is arranged on the box body, a sliding groove is formed in the inner wall of the cover plate body, a sealing plate is slidably installed in the sliding groove, a fixed plate is fixedly installed on the inner wall of the cover plate body, a cover body is placed on the fixed plate, a handle is fixedly installed on the cover body, and the cover body and the handle are provided with multiple groups.

[0006] By adopting the above technical scheme, the sealing plate can be fixed on the cover plate body by bolts, and when a single monomer battery needs to be disassembled, the sealing plate is opened, the handle is pulled to drive the cover body to move, so that the fixation of the monomer battery is released, and then the monomer battery can be disassembled and replaced.

[0007] Optionally, a rack is fixedly installed at the lower end of the cover body, and a through slot is formed in the box body, and the rack is slidingly installed in the through slot.

[0008] By using the above technical scheme, when the cover body moves, the rack moves in the through slot.

[0009] Optionally, an inner cavity is formed in the box body, and a plurality of partitions are fixedly installed on the inner wall of the inner cavity.

[0010] By using the above technical scheme, the partitions can divide the box body into a plurality of compartments, facilitating the fixing of the plurality of single batteries.

[0011] Optionally, a protective pad is fixedly installed on the side wall of the partition layer between the two partitions, a moving slot is formed in the bottom surface of the partition layer, a reciprocating screw rod is fixedly installed on the side wall of the moving slot, and a moving plate is threadedly installed on the reciprocating screw rod.

[0012] By using the above technical scheme, when the reciprocating screw rod moves, the moving plate moves along the moving slot, and the single battery is fixed under the clamping of the moving plate and the protective pad.

[0013] Optionally, a push rod is fixedly installed on the bottom surface of the cover plate body.

[0014] By using the above technical scheme, a cylinder is arranged in the box body below the push rod, and when the battery in the box body needs to be overhauled or replaced, the cylinder is started to drive the push rod to move, thereby driving the entire cover plate body to move, so that the cover plate body can be opened for overall maintenance.

[0015] Optionally, a gear is rotatably installed on the side wall of the bottom of the through slot, and the gear is fixedly connected with the reciprocating screw rod.

[0016] By using the above technical scheme, when the gear rotates, the reciprocating screw rod rotates.

[0017] Optionally, the gear and the rack are meshed with each other.

[0018] By using the above technical scheme, when the rack moves, the gear meshed with the rack rotates.

[0019] Optionally, the protective pad and the moving plate are made of rubber material.

[0020] By using the above technical scheme, the single battery is prevented from being damaged by clamping.

[0021] Compared with the prior art, the technical scheme of the present application has the following advantages:

[0022] The technical scheme of the application sets the cover body which can be moved alone, so that when a single monomer battery needs to be replaced, the whole cover body does not need to be opened, and the replacement can be completed, the protective pad and the moving plate made of rubber are set to prevent the monomer battery from being damaged by clamping, the use is more convenient, the structures cooperate with each other, time is saved, and the efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS

[0023] Other features, objects and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings:

[0024] Figure 1 FIG. 1 is a structural schematic view of a closed state of a mounting cover plate structure of a square lithium battery PACK according to the application;

[0025] Figure 2 FIG. 2 is a structural schematic view of an open state of the mounting cover plate structure of the square lithium battery PACK according to the application;

[0026] Figure 3 FIG. 3 is a structural schematic view of an inner compartment of the mounting cover plate structure of the square lithium battery PACK according to the application;

[0027] Figure 4 FIG. 4 is a structural schematic view of a gear and rack connecting part of the mounting cover plate structure of the square lithium battery PACK according to the application.

[0028] In the figure: 1, box body; 2, cover body; 3, sealing plate; 4, rack; 5, push rod; 6, partition plate; 7, sliding groove; 8, cover body; 9, handle; 10, protective pad; 11, moving plate; 12, moving groove; 13, reciprocating screw rod; 14, gear; 15, fixed plate; 16, through groove; 17, inner cavity. DETAILED DESCRIPTION

[0029] Please refer to Figures 1-4 The application provides a technical scheme: a mounting cover plate structure of a square lithium battery PACK, which comprises a box body 1, the box body 1 is provided with a cover body 2, a sliding groove 7 is formed in the inner wall of the cover body 2, a sealing plate 3 is slidably installed in the sliding groove 7, a fixed plate 15 is fixedly installed on the inner wall of the cover body 2, a cover body 8 is placed on the fixed plate 15, a handle 9 is fixedly installed on the cover body 8, the cover body 8 and the handle 9 are provided with multiple groups, the sealing plate 3 can be fixed on the cover body 2 by bolts, and when a single monomer battery needs to be disassembled, the sealing plate 3 is opened, the handle 9 is pulled, so that the cover body 8 is moved, the fixing of the monomer battery is released, and then the monomer battery is disassembled and replaced.

[0030] In the technical scheme of the application, as Figure 2As shown, the lower end of the cover 8 is fixedly installed with a rack 4, a through slot 16 is formed in the box 1, and the rack 4 is slidingly installed in the through slot 16. When the cover 8 moves, the rack 4 will move in the through slot 16.

[0031] In the technical scheme of the present application, as shown in Figure 2 and 3 A cavity 17 is formed in the box 1, a plurality of partitions 6 are fixedly installed on the inner wall of the cavity 17, the box 1 is divided into a plurality of compartments by the partitions 6, and the plurality of single batteries can be fixed respectively.

[0032] In the technical scheme of the present application, as shown in Figure 3 A protective pad 10 is fixedly installed on the partition side wall between the two partitions 6, a moving slot 12 is formed in the partition bottom surface, a reciprocating screw rod 13 is rotatably installed on the side wall of the moving slot 12, and a moving plate 11 is threadedly installed on the reciprocating screw rod 13. When the reciprocating screw rod 13 moves, the moving plate 11 will move along the moving slot 12 under the clamping of the moving plate 11 and the protective pad 10, and the single battery is fixed.

[0033] In the technical scheme of the present application, as shown in Figure 2 A push rod 5 is fixedly installed on the bottom surface of the cover plate body 2, and a gas cylinder is arranged in the box 1 below the push rod 5. When the battery in the box 1 needs to be overhauled or replaced, the gas cylinder is started to drive the push rod 5 to move, so that the entire cover plate body 2 moves, and the cover plate body 2 is opened to overhaul.

[0034] In the technical scheme of the present application, as shown in Figure 2 and 4 A gear 14 is rotatably installed on the side wall of the bottom of the through slot 16, and the gear 14 is fixedly connected with the reciprocating screw rod 13. When the gear 14 rotates, the reciprocating screw rod 13 will rotate.

[0035] In the technical scheme of the present application, as shown in Figure 4 The gear 14 and the rack 4 are meshed with each other, and when the rack 4 moves, the gear 14 meshed with the rack 4 will rotate.

[0036] In the technical scheme of the present application, as shown in Figure 3 The material of the protective pad 10 and the moving plate 11 is rubber material, which prevents the single battery from being damaged by clamping.

[0037] When the single monomer battery needs to be overhauled and replaced, the sealing plate 3 is opened, the pull handle 9 is pulled, the cover 8 is moved, when the cover 8 moves, the rack 4 moves in the through slot 16, when the rack 4 moves, the gear 14 engaged with it rotates, when the gear 14 rotates, the reciprocating wire rod 13 rotates, when the reciprocating wire rod 13 moves, the moving plate 11 moves along the moving groove 12, that is, the fixing of the single monomer battery can be released, then it can be disassembled and replaced, when the battery in the box 1 needs to be overhauled or replaced, the air cylinder is started, the push rod 5 is moved, the entire cover plate body 2 is moved, the cover plate body 2 can be opened, and the overall overhaul can be carried out.

Claims

1. A mounting cover plate structure of a square lithium battery PACK, characterized by: Including box (1), be provided with cover plate body (2) on the box (1), the inner wall of cover plate body (2) is set up sliding slot (7), the sealing plate (3) is slidably installed in sliding slot (7), the inner wall of cover plate body (2) is fixedly installed with fixed plate (15), the fixed plate (15) is placed with cover (8), the handle (9) is fixedly installed on cover (8), cover (8) and handle (9) are provided with multiple groups.

2. The mounting cover plate structure of a square lithium battery PACK according to claim 1, characterized by, The lower end of the cover (8) is fixedly installed with a rack (4), and the box (1) is provided with a through groove (16).

3. The mounting cover plate structure of a square lithium battery PACK according to claim 1, characterized in that, The inner wall of the inner cavity (17) is fixedly installed with a plurality of partitions (6).

4. The mounting cover plate structure of a square lithium battery PACK according to claim 3, characterized by, The side wall of the partition between the two partitions (6) is fixedly installed with a protective pad (10), and the bottom surface of the partition is provided with a moving groove (12).

5. The mounting cover plate structure of a square lithium battery PACK according to claim 1, characterized by, The side wall of the moving groove (12) is rotatably installed with a reciprocating screw rod (13), and the reciprocating screw rod (13) is threadedly installed with a moving plate (11).

6. The mounting cover plate structure of a square lithium battery PACK according to claim 2, characterized by, The bottom surface of the cover plate body (2) is fixedly installed with a push rod (5).

7. The mounting cover plate structure of a square lithium battery PACK according to claim 6, characterized by, The side wall of the bottom of the through groove (16) is rotatably installed with a gear (14), and the gear (14) and the reciprocating screw rod (13) are fixedly connected.

8. The mounting cover plate structure of a square lithium battery PACK according to claim 4, characterized by, The gear (14) and the rack (4) are engaged with each other. The material of the protective pad (10) and the moving plate (11) is rubber material.