Square battery shell combined structure
By using a modular battery casing structure, and utilizing a support separation component and a reciprocating ball screw to drive the lifting and lowering of the top and bottom plates, the problem of batteries being able to be removed only from the top is solved, enabling convenient disassembly and maintenance of the batteries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-07
AI Technical Summary
The existing square battery casings are integrated with the bottom and sides, which means the battery can only be removed from the top, increasing the difficulty of disassembly and repair.
It adopts a modular structure, including a battery casing, cover plate, bottom plate, splicing base box and support separation assembly. The top plate and bottom plate are raised and lowered by reciprocating ball screw and electric cylinder, and the battery is automatically supported and removed by the support separation assembly.
This reduces the difficulty of removing the battery from inside the battery casing, improves the convenience of battery disassembly and maintenance, and enhances the practicality of the battery casing.
Smart Images

Figure CN224096862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery casing technology, specifically a combined structure for a square battery casing. Background Technology
[0002] A battery casing is an external structure used to enclose and protect the internal components of a battery. It not only provides physical protection for the battery and prevents mechanical damage, but also prevents moisture, dust and other contaminants from entering the battery, thereby ensuring the battery's safety and stability.
[0003] A square battery casing is a type of battery casing. A complete battery casing is usually composed of a cover, a casing, and a pressure plate. During battery assembly, multiple batteries need to be placed inside the battery casing. However, since the bottom and sides of the battery casing are connected as one piece, the batteries can only be removed from the top. In addition, because the batteries have a certain weight, the existing battery casing is not conducive to removing the batteries during maintenance and disassembly. Therefore, improvements are needed. Utility Model Content
[0004] The purpose of this invention is to provide a combined square battery casing structure to solve the problem mentioned in the background art that the battery casing is not conducive to battery removal.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a square battery casing assembly structure, including a battery casing, a cover plate on the top of the battery casing, a bottom plate inserted into the inner wall of the battery casing, multiple bottom plates, a splicing bottom box at the bottom of the battery casing, a support separation assembly inside the splicing bottom box, and a set of support separation assemblies symmetrically arranged on the left and right sides about the bisector of the splicing bottom box.
[0006] The support separation assembly includes a reciprocating ball screw fixedly connected to the inner wall of the splicing base box. A mounting plate is connected to the top of the reciprocating ball screw, an electric cylinder is mounted on the top side of the mounting plate, and a top plate is connected to the top of the electric cylinder. The top plate is located at the bottom of the base plate.
[0007] Preferably, the inner wall of the battery casing is provided with a groove, and the outer wall of the bottom plate is provided with a protrusion, the protrusion being slidably connected to the groove.
[0008] Preferably, a limiting block is fixedly connected to the inner wall of the splicing base box, and the limiting block is supported at the bottom of the base plate.
[0009] Preferably, the inner wall of the splicing base box is fixedly connected to a slide rail, the slide rail is symmetrically distributed about the bisector of the mounting plate, and a slider is fixedly connected to the bottom of the mounting plate, the lower end of the slider being slidably connected to the slide rail.
[0010] Preferably, the top plate and the electric cylinder are symmetrically distributed about the bisector of the mounting plate, and the top plate is made of rubber.
[0011] Preferably, the splicing base box and the battery casing are fixedly connected by bolts, and the gap between the splicing base box and the battery casing is sealed with a sealing ring.
[0012] Preferably, a battery pressure plate is provided on the inner wall of the battery casing, and the battery pressure plate is fixed to the battery casing by bolts.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) This device connects the splicing base box and the battery casing in a modular way. The battery inside the battery casing can be automatically supported and pushed out by the support and separation components inside the splicing base box, thereby reducing the difficulty of removing the battery from inside the battery casing.
[0015] (2) This device sets up a support separation component inside the splicing base box. The electric cylinder and top plate of the support separation component correspond to the position of the bottom plate on the inner wall of the battery casing. Thus, the bottom plate can be automatically lifted by the electric cylinder and top plate, which makes it easy for the bottom plate to remove the battery from inside the battery casing and facilitates subsequent disassembly and removal.
[0016] (3) This device uses a reciprocating ball screw at the bottom of the mounting plate to drive the mounting plate and the electric cylinder and top plate at the top of the mounting plate to move back and forth, thereby facilitating the adjustment of the position of the electric cylinder and top plate between multiple base plates and realizing the lifting and lowering operation of multiple base plates. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a combined square battery casing structure according to the present invention;
[0018] Figure 2 This utility model relates to a combined structure for a square battery casing. Figure 1 Enlarged view of point A in the middle;
[0019] Figure 3 This is a top view of the mounting plate of a square battery casing assembly structure according to this utility model;
[0020] Figure 4 This is a top view of the battery casing of a square battery casing assembly structure according to this utility model.
[0021] In the diagram: 1. Cover plate; 2. Battery pressure plate; 3. Battery casing; 4. Base plate; 5. Support separation assembly; 51. Top plate; 52. Electric cylinder; 53. Mounting plate; 54. Slider; 55. Slide rail; 56. Reciprocating ball screw; 6. Limit block; 7. Splicing base box. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-4This utility model provides a technical solution: a square battery casing assembly structure, including a battery casing 3, a cover plate 1 on the top of the battery casing 3, a groove on the inner wall of the battery casing 3, and a protrusion on the outer wall of a base plate 4, the protrusion being slidably connected to the groove. The base plate 4 in this structure supports the battery during installation. The height of the battery can be adjusted by sliding the base plate 4, facilitating the separation of the base plate 4 from the inside of the battery casing 3. Before separation, the cable connectors on the battery should be disconnected. The outer wall of the base plate 4 is connected to the battery casing 3 by screws, and the gap between the battery casing 3 and the screws is sealed and cured with epoxy resin to prevent entry. The battery casing 3 has multiple base plates 4 inserted into its inner wall. A splicing base box 7 is located at the bottom of the battery casing 3. Support separation components 5 are installed inside the splicing base box 7, with one set of each symmetrically arranged about the bisector of the splicing base box 7. Each support separation component 5 includes a reciprocating ball screw 56 fixedly connected to the inner wall of the splicing base box 7. Limit blocks 6 are fixedly connected to the inner wall of the splicing base box 7 and supported at the bottom of the base plates 4. This structure limits the installation height of the base plates 4 by using the limit blocks 6. A slide rail 55 is fixedly connected to the inner wall of the splicing base box 7, and the slide rails 55 are symmetrically distributed about the bisector of the mounting plate 53. The bottom of the mounting plate 53 is fixed... A slider 54 is connected, and the lower end of the slider 54 is slidably connected to the slide rail 55. This structure improves the stability of the sliding of the mounting plate 53 by setting the slide rail 55 and the slider 54. The splicing base box 7 and the battery housing 3 are fixedly connected by bolts. The gap between the splicing base box 7 and the battery housing 3 is sealed with a sealing ring. This structure can ensure the airtightness of the splicing base box 7 and the battery housing 3 combination and prevent water from entering the splicing base box 7. A battery pressure plate 2 is provided on the inner wall of the battery housing 3. The battery pressure plate 2 is fixed to the battery housing 3 by bolts. In this structure, the battery pressure plate 2 is located on top of the battery during battery installation and is mainly used to limit the battery. The top of the reciprocating ball screw 56 is connected to a mounting plate. Mounting plate 53 has an electric cylinder 52 mounted on its top side. The top of the electric cylinder 52 is connected to a top plate 51. The top plate 51 and the electric cylinder 52 are symmetrically distributed about the bisector of the mounting plate 53. The top plate 51 is made of rubber. This structure can automatically raise and lower the top plate 51 by the electric cylinder 52, which facilitates the separation of the top plate 51 from the bottom plate 4, or the top plate 51 can push the bottom plate 4 to rise and fall. The top plate 51 is located at the bottom of the bottom plate 4. The reciprocating ball screw 56 of this device is composed of a fixed seat, a threaded rod, a screw slide, and a motor. The top of the screw slide is fixedly connected to the mounting plate 53. The fixed seat is fixed to the inner wall of the splicing base box 7 by bolts. The reciprocating ball screw 56 of this device can be controlled by a PLC.
[0024] Working principle: When using this square battery casing assembly structure, bolts are used to assemble the splicing base box 7 to the bottom of the battery casing 3. Then, the base plate 4 is fixed to the battery casing 3 with screws. During the battery assembly process, the battery pressure plate 2 is fixed to the inner wall of the battery casing 3 to limit the battery position. Finally, bolts are used to fix the cover plate 1 to the battery casing 3. During the use of this device, the screws fixing the base plate 4 and the battery casing 3 can be removed. Then, the reciprocating ball screw 56 drives the top plate 51 and the electric cylinder 52 on the mounting plate 53 to move to a suitable position at the bottom of the base plate 4. Then, the electric cylinder 52 and the top plate 51 push the base plate 4 to rise and fall on the inner wall of the battery casing 3, which makes it easy to remove the battery from the base plate 4 or install the battery on the base plate 4, improving the practicality of the battery casing 3.
[0025] Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. A rectangular battery casing assembly structure, comprising a battery casing (3), wherein a cover plate (1) is provided on the top of the battery casing (3), characterized in that: The inner wall of the battery casing (3) is provided with a base plate (4), and there are multiple base plates (4). The bottom of the battery casing (3) is provided with a splicing base box (7), and the splicing base box (7) is provided with a support separation component (5). The support separation component (5) is symmetrically arranged on the left and right sides about the bisector of the splicing base box (7). The support separation assembly (5) includes a reciprocating ball screw (56) fixedly connected to the inner wall of the splicing base box (7). The top of the reciprocating ball screw (56) is connected to a mounting plate (53). An electric cylinder (52) is installed on the top side of the mounting plate (53). A top plate (51) is connected to the top of the electric cylinder (52). The top plate (51) is located at the bottom of the base plate (4).
2. The combined square battery casing structure according to claim 1, characterized in that: The inner wall of the battery casing (3) is provided with a sliding groove, and the outer wall of the bottom plate (4) is provided with a protrusion, which is slidably connected to the sliding groove.
3. The combined square battery casing structure according to claim 1, characterized in that: The inner wall of the splicing base box (7) is fixedly connected to a limiting block (6), which is supported at the bottom of the base plate (4).
4. The combined structure of a square battery casing according to claim 1, characterized in that: The inner wall of the splicing base box (7) is fixedly connected to a slide rail (55). The slide rail (55) is symmetrically distributed about the bisector of the mounting plate (53). The bottom of the mounting plate (53) is fixedly connected to a slider (54). The lower end of the slider (54) is slidably connected to the slide rail (55).
5. The combined square battery casing structure according to claim 1, characterized in that: The top plate (51) and the electric cylinder (52) are symmetrically distributed about the bisector of the mounting plate (53), and the top plate (51) is made of rubber.
6. The combined square battery casing structure according to claim 1, characterized in that: The splicing base box (7) and the battery casing (3) are fixedly connected by bolts, and the gap between the splicing base box (7) and the battery casing (3) is sealed with a sealing ring.
7. The combined square battery casing structure according to claim 1, characterized in that: The inner wall of the battery casing (3) is provided with a battery pressure plate (2), and the battery pressure plate (2) is fixed to the battery casing (3) by bolts.