Quick-release battery equalization module
By using a rotating snap-fit structure and a Z-shaped spring clip design, the problems of cumbersome disassembly and assembly and unstable connection of the battery equalization module are solved, achieving rapid disassembly and assembly and vibration resistance, thereby improving the maintenance efficiency and stability of the battery pack.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-14
AI Technical Summary
Existing battery balancing modules are cumbersome to install and remove, difficult to maintain, have poor connection stability, and are prone to loosening after long-term use, thus failing to meet the long-term stability requirements of battery packs.
It adopts a rotary snap-fit structure and a Z-shaped spring clip design. The snap-fit plate is driven by a rotating shaft to achieve quick assembly and disassembly. The staggered snap-fit plate and spring clip provide multi-point distributed locking and buffering to ensure connection stability.
It enables quick assembly and disassembly of the battery body, improves maintenance efficiency, prevents loose connections, enhances contact stability and structural reliability, and meets vibration resistance requirements.
Smart Images

Figure CN224123442U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery module technology, and in particular to a quick-release battery equalization module. Background Technology
[0002] The battery balancing module is a core component of the battery management system (BMS), designed to address inconsistencies in voltage, capacity, or state of charge (SOC) among individual cells within a battery pack due to differences in manufacturing processes, usage environments, or aging. By adjusting the energy distribution among the cells, this module can improve the overall performance of the battery pack, extend its lifespan, and ensure safety.
[0003] Existing battery balancing modules mostly use bolt fixing or welding for connection, which leads to cumbersome disassembly and assembly and difficult maintenance. Especially in scenarios where it is necessary to frequently replace individual cells or perform balancing maintenance, the existing structure often requires special tools and is time-consuming. In addition, conventional snap-fit structures have problems such as poor connection stability and easy loosening after long-term use, which affects the balancing performance and safety of the battery pack. The spring design in the existing technology often has defects such as stress concentration and rapid elastic decay, which cannot meet the requirements of battery modules for long-term stability. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a quick-release battery equalization module that solves the problems of cumbersome disassembly and assembly and difficult maintenance caused by the use of bolt fixing or welding to connect battery equalization modules.
[0005] To address the existing technical problems, the technical solution of this utility model is as follows: A quick-release battery equalization module includes a battery body and a placement plate. One side of the placement plate has an opening for a wire to be connected to the battery body. The battery body is located in a placement groove of the placement plate. A disassembly plate is fixedly installed on the top of both the battery body and the placement plate. The two disassembly plates are symmetrically arranged. A rotating shaft is rotatably connected through the outer wall of the disassembly plate. A snap-fit plate is fixedly connected to the outer wall of the rotating shaft. The bottom of the other side of the snap-fit plate is snapped into the rotating shaft on the other disassembly plate. A disassembly spring is fixedly connected to the top of the disassembly plate, and the other end of the disassembly spring contacts the top of the snap-fit plate.
[0006] Preferably, the disassembly plate is U-shaped, the rotating shaft is located on the two vertical surfaces of the disassembly plate, and each rotating shaft is provided with multiple snap-fit plates, with the snap-fit plates on different rotating shafts being staggered.
[0007] Preferably, the top of the snap-fit plate has a slot through which the snap-fit spring passes. The bottom of the snap-fit spring is connected to the top of the horizontal surface of the snap-fit plate, and the snap-fit spring is in the shape of a "Z". The number of the snap-fit spring's spring-like branches corresponds to the number of snap-fit plates. The branches of the snap-fit spring on both sides are staggered. The snap-fit spring is made of elastic metal material and always exerts downward pressure on the snap-fit plate.
[0008] Compared with the prior art, the advantages of this utility model are as follows:
[0009] 1. This utility model achieves quick assembly and disassembly of the battery body through an innovative rotary snap-fit structure (rotary shaft + snap-fit plate). By driving the snap-fit plate through the rotary shaft, the assembly and disassembly operations can be completed without the aid of tools, effectively improving maintenance efficiency.
[0010] 2. This utility model, through its unique Z-shaped disassembly and assembly spring design combined with the slot structure, not only ensures the locking pressure of the snap-fit plate, but also provides buffering through elastic deformation, effectively preventing connection loosening caused by vibration and effectively improving contact stability.
[0011] 3. This utility model forms a multi-point distributed locking by staggered multiple snap-fit plates, and with the staggered layout of the spring sheet branches, the stress distribution is more uniform, the structural reliability is improved, and the vibration resistance requirement is met. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the structure of the placement plate of this utility model;
[0014] Figure 3 This is a schematic diagram of the disassembly and assembly plate of this utility model;
[0015] Figure 4 This is a schematic diagram of the structure of the rotating shaft of this utility model;
[0016] Figure 5 This is a schematic diagram of the structure of the snap-fit plate of this utility model;
[0017] Figure 6 This is a side sectional view of the snap-fit plate of this utility model;
[0018] Figure 7 This is a schematic diagram of the structure of the spring clip of this utility model.
[0019] In the attached diagram, the following are the reference numerals: 1. Battery body; 2. Placement plate; 3. Assembly / disassembly plate; 4. Rotation shaft; 5. Snap-fit plate; 6. Assembly / disassembly spring. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Please see Figure 1-5 A quick-release battery balancing module includes a battery body 1 and a placement plate 2. The battery body 1, as the core power supply component of the entire module, provides power to the device. In practical applications such as electric vehicles and energy storage systems, it is crucial for storing and releasing electrical energy. The placement slot on the placement plate 2 provides a stable placement space for the battery body 1, ensuring that the battery does not shake or shift during operation. This protects the battery body 1 from external impacts and friction, extending its lifespan. One side of the placement plate 2 has an opening for the wires connected to the battery body 1. This opening provides a dedicated channel for the wires, preventing tangled wires and facilitating neat wiring layout and maintenance. It also reduces damage to the wires caused by bending or squeezing. The battery body 1 is located within the placement slot of the placement plate 2. A U-shaped disassembly plate 3 is fixedly installed on the top of both the battery body 1 and the placement plate 2. The U-shaped mounting plate 3 provides a mounting base for the rotating shaft 4 and the snap-fit plate 5, allowing the rotating shaft 4 to pass through and rotatably connect to the vertical surface of the mounting plate 3, providing support for the rotation of the snap-fit plate 5. The two mounting plates 3 are symmetrically arranged, with the rotating shaft 4 passing through and rotatably connected to the outer wall of each mounting plate 3. The rotating shaft 4 serves as the rotation center of the snap-fit plate 5, supporting its rotation around which the snap-fit plate 5 can engage and disengage. The snap-fit plate 5 is fixedly connected to the outer wall of the rotating shaft 4. One side of the snap-fit plate 5 is connected to the mounting plate 3 via the rotating shaft 4, while the bottom of the other side... The first part can be engaged with the rotating shaft 4 on another disassembly plate 3, thereby tightly connecting the two disassembly plates 3 together, thus fixing the battery body 1 and the placement plate 2. The bottom of the other side of the engagement plate 5 is engaged with the rotating shaft 4 on another disassembly plate 3. The top of the disassembly plate 3 is fixedly connected with a disassembly spring 6, which is used to fix the disassembly spring 6, ensuring that the spring can accurately cooperate with the engagement plate 5, realizing the pressure application and locking function of the engagement plate 5. The other end of the disassembly spring 6 contacts the top of the engagement plate 5. Through the innovative rotating engagement structure (rotating shaft 4 + engagement plate 5), the battery body 1 can be quickly disassembled and assembled. By driving the engagement plate 5 through the rotation shaft 4, the disassembly and assembly operation can be completed without the aid of tools, effectively improving maintenance efficiency.
[0022] Please see Figure 2-4The disassembly plate 3 is U-shaped, and the rotating shaft 4 is located on the two vertical surfaces of the disassembly plate 3. Each rotating shaft 4 is equipped with multiple snap-fit plates 5. The snap-fit plates 5 on different rotating shafts 4 are staggered. The staggered snap-fit plates 5 form a multi-point distributed locking mechanism. Combined with the staggered layout of the spring branch, the stress distribution is more uniform, improving the structural reliability and meeting the vibration resistance requirements.
[0023] Please see Figure 3-5 The top of the snap-fit plate 5 has a slot through which the snap-fit spring 6 passes. The bottom of the snap-fit spring 6 connects to the top of the horizontal surface of the snap-fit plate 3, and the snap-fit spring 6 is Z-shaped. The number of branches of the snap-fit spring 6 corresponds to the number of snap-fit plates 5. The branches of the snap-fit spring 6 on both sides are staggered. During battery operation, the snap-fit spring 6 can play a certain role in buffering and shock absorption, reducing damage to the snap-fit structure caused by vibration and impact, and extending the service life of the snap-fit structure. The snap-fit spring 6 is made of elastic metal material and always has downward pressure on the snap-fit plate 5, ensuring that the snap-fit plate 5 can be tightly snapped with the rotating shaft 4 on the other snap-fit plate 3, preventing the snap-fit plate 5 from being accidentally loosened during operation. Through the unique Z-shaped snap-fit spring 6 design and the slot structure, the locking pressure of the snap-fit plate 5 is guaranteed, and the elastic deformation provides buffering, effectively preventing the connection from loosening due to vibration and effectively improving the contact stability.
[0024] In use, the battery body 1 is vertically placed into the slot of the placement plate 2. At this time, the vertical surfaces of the two disassembly plates 3 on both sides form an initial positioning with the battery casing. The opening on the side of the placement plate 2 provides a passage for the battery electrode connection wires to pass through, avoiding cable bending. The elastic metal springs generate downward pressure, causing the hook-shaped structure at the end of the snap-fit plate 5 to tightly engage with the base of the rotating shaft 4 of the opposite disassembly plate 3, forming a three-point mechanical constraint. Multiple staggered snap-fit plates 5 decompose the vibration load of the battery body 1 into multi-directional components. The vertical wall of the U-shaped disassembly plate 3 bears the main shear force, while the spring branches on the horizontal surface provide dynamic compensation pressure to prevent micro-displacement caused by high-frequency vibration. At the same time, the rotating shafts 4 on both sides are rotated, and the rotating shafts 4 drive the snap-fit plates 5 connected to them to move. The rotation of the snap-fit plates 5 causes the Z-shaped disassembly springs 6 to bend. At the moment the spring pressure disappears, the hook-shaped structure disengages from the contact surface of the base of the opposite rotating shaft 4, and the battery body 1 is in a semi-free state. The battery can be lifted directly upwards to complete the disassembly. The whole process does not require the assistance of tools.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick-release battery equalization module, comprising a battery body (1) and a placement plate (2), wherein the battery body (1) is located in a placement slot of the placement plate (2), characterized in that: The battery body (1) and the placement plate (2) are both fixedly installed with a disassembly plate (3). The two disassembly plates (3) are symmetrically arranged. The outer wall of the disassembly plate (3) is connected to a rotating shaft (4) through and rotatably. The outer wall of the rotating shaft (4) is fixedly connected with a snap-fit plate (5). The bottom of the other side of the snap-fit plate (5) is snapped with the rotating shaft (4) on the other disassembly plate (3). The top of the disassembly plate (3) is fixedly connected with a disassembly spring (6). The other end of the disassembly spring (6) is in contact with the top of the snap-fit plate (5).
2. The quick-release battery equalization module according to claim 1, characterized in that: The placement plate (2) has an opening on one side for a wire to be connected to the battery body (1).
3. The quick-release battery equalization module according to claim 1, characterized in that: The disassembly plate (3) is U-shaped, and the rotating shaft (4) is located on the two vertical surfaces of the disassembly plate (3).
4. The quick-release battery equalization module according to claim 1, characterized in that: Each of the rotating shafts (4) is provided with multiple snap-fit plates (5), and the snap-fit plates (5) on different rotating shafts (4) are arranged alternately.
5. The quick-release battery equalization module according to claim 1, characterized in that: The top of the snap plate (5) has a slot, through which the detachable spring clip (6) passes.
6. The quick-release battery equalization module according to claim 1, characterized in that: The bottom of the disassembly spring (6) is connected to the top of the horizontal surface of the disassembly plate (3), and the disassembly spring (6) is in the shape of a "Z".
7. The quick-release battery equalization module according to claim 1, characterized in that: The number of branches of the spring clip (6) that spring up corresponds to the number of the snap-fit plate (5), and the branches of the spring clip (6) on both sides are staggered.
8. The quick-release battery equalization module according to claim 1, characterized in that: The detachable spring clip (6) is made of elastic metal material and always exerts downward pressure on the snap-fit plate (5).