Dual-connection structure for battery
Through a triple design of magnetic attraction, mechanical snap-fit, and electrode insertion, the problems of insufficient mechanical stability, unreliable electrical connection, and inconvenient operation in battery connection methods are solved, achieving stable connection and convenient maintenance of battery packs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PRO-X CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-14
AI Technical Summary
Existing battery connection methods suffer from insufficient mechanical stability, unreliable electrical connections, and inconvenient operation.
Multiple battery packs are connected via magnetic components, mechanical snap-fit components, and electrode insertion structures. Combined with the design of guide components and locking blocks, the structural stability and electrical connection reliability of the battery pack are ensured in vibration environments. The assembly process is simplified by using a handle.
It achieves structural stability and electrical connection reliability of the battery pack under vibration environment, simplifies operation steps, simplifies the battery pack assembly process, facilitates quick separation and assembly, and improves the overall connection strength and service life of the battery pack.
Smart Images

Figure CN224123446U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of battery technology, specifically a dual connection structure for batteries. Background Technology
[0002] With the widespread use of portable electronic devices and energy storage systems, the connection structure of battery packs needs to simultaneously meet the requirements of high reliability of electrical connections, stability of mechanical structures, and ease of operation. Traditional battery connection methods mainly rely on single mechanical clips or magnetic connections, which have obvious drawbacks:
[0003] 1. Mechanical snap-fit connection: Although it can provide a certain degree of structural stability, it is prone to poor contact due to wear during long-term use, and precise alignment is required during assembly, which is inconvenient.
[0004] 2. Magnetic connection: Although convenient for quick insertion and removal, the magnetic force is limited and it is easily loosened under vibration or external force, leading to interruption of the electrical connection.
[0005] In existing technologies, some solutions attempt to combine mechanical snap-fit and magnetic structures, but do not have an independent electrode insertion structure, resulting in insufficient electrical connection reliability; traditional mechanical snap-fit structures usually require complex operations, making it difficult to meet the needs of efficient production and users to quickly replace batteries.
[0006] Therefore, there is an urgent need for a dual-connection battery structure that can simultaneously improve mechanical stability, electrical connection reliability, and ease of operation. Utility Model Content
[0007] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a dual connection structure for batteries, which solves the technical problems of insufficient mechanical stability, unreliable electrical connection and inconvenient operation in the existing battery connection methods.
[0008] The present invention adopts the following solution: a dual connection structure for a battery, characterized in that it includes:
[0009] Multiple battery groups are connected to each other via magnetic components, mechanical snap-fit components, and electrode insertion structures.
[0010] In this configuration, adjacent batteries are energized through an electrode insertion structure.
[0011] The mechanical locking component includes: a guide member disposed within the battery, a locking block disposed within the battery, and a locking slot disposed within the battery. The guide member cooperates with the locking block, and the guide member can drive the locking block to move, thereby enabling adjacent batteries to be separated and joined through the locking block and the locking slot.
[0012] Preferably, the guide member includes: a limiting frame fixed inside the battery, a limiting block slidably disposed inside the limiting frame, the limiting block being fixedly connected to a locking block, a connecting member hinged to the center position of the limiting block, the limiting frame being provided with a first limiting groove and a second limiting groove, and the connecting member and the limiting block being provided with a first limiting block and a second limiting block respectively cooperating with the first limiting groove and the second limiting groove;
[0013] A spring is provided between one end of the connecting member and the inner wall of the lower housing, and a handle is provided at the other end of the connecting member.
[0014] Preferably, each battery group includes an upper housing and a lower housing that are interlocked; the upper housing is provided with a female battery connector, and the lower housing is provided with a male battery connector that mates with the female battery connector.
[0015] Preferably, the magnetic attraction component includes: a first magnet fixed to the upper housing, and a second magnet fixed to the lower housing and corresponding to the position of the first magnet.
[0016] Preferably, it further includes a positioning component, said positioning component comprising:
[0017] A positioning groove is formed on the upper housing, and the first magnet piece is embedded in the positioning groove;
[0018] A positioning block that protrudes from the top of the lower housing and is inserted into the positioning groove.
[0019] Preferably, both the female and male battery connectors are made of oxidation-resistant metal materials, and the inner wall of the female battery connector is provided with an elastic conductive sheet.
[0020] Preferably, both the first and second magnet pieces are permanent magnets, and the magnetic poles of the opposite sides of the first and second magnet pieces are opposite.
[0021] Preferably, the positioning groove wall is provided with an elastic sealing gasket, and the outer side wall of the positioning block is provided with a sealing groove that cooperates with the elastic sealing gasket.
[0022] Preferably, the electrode insertion structure includes electrode pins and electrode holes, which are respectively disposed on opposite sides of adjacent batteries, and the surfaces of the electrode pins and electrode holes are plated with a metal layer.
[0023] Beneficial effects:
[0024] I. Dual Connection Reliability: The mechanical snap-fit and magnetic attraction structure work together to ensure the structural stability of the battery pack in a vibration environment; the independent electrode plug-in structure ensures the reliability of the electrical connection and avoids the risk of power failure due to poor contact.
[0025] II. Ease of Operation: The guide component enables the rapid movement of the locking block through the handle and spring, and with the help of magnetic alignment, the assembly process is simplified and the operation difficulty is reduced. Attached Figure Description
[0026] Figure 1 This is one of the three-dimensional schematic diagrams of a single battery of this utility model.
[0027] Figure 2 This is the second three-dimensional schematic diagram of a single battery of this utility model.
[0028] Figure 3 This is a three-dimensional sectional view of the two batteries of this utility model.
[0029] Figure 4 This is a three-dimensional schematic diagram of the mechanical snap-fit component of this utility model.
[0030] Figure 5 This is an exploded three-dimensional schematic diagram of the mechanical snap-fit component of this utility model.
[0031] Figure label:
[0032] 1. Battery; 11. Upper casing; 12. Lower casing; 13. Battery female connector; 14. Battery male connector;
[0033] 2. Magnetic attraction component; 21. First magnet piece; 22. Second magnet piece;
[0034] 3. Mechanical locking components; 31. Guide components; 311. Limiting frame; 312. Limiting block; 313. Connecting components; 314. First limiting groove; 315. Second limiting groove; 316. First limiting block; 317. Second limiting block; 318. Spring; 319. Handle; 32. Locking block; 33. Locking groove;
[0035] 4. Electrode insertion structure; 41. Electrode pin; 42. Electrode socket;
[0036] 5. Positioning component; 51. Positioning groove; 52. Positioning block. Detailed Implementation
[0037] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figure 1-5 The detailed description of the embodiments will clearly demonstrate this. All structural details mentioned in the following embodiments are based on the accompanying drawings.
[0038] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.
[0039] Example 1: A dual connection structure for batteries includes multiple battery groups 1. Adjacent batteries 1 are dually connected via a magnetic attraction component 2, a mechanical snap-fit component 3, and an electrode insertion structure 4. The structure is as follows:
[0040] Battery body structure: Each battery 1 consists of an upper shell 11 and a lower shell 12 that are interlocked.
[0041] The upper housing 11 is provided with a battery connection female head 13, and the lower housing 12 is provided with a battery connection male head 14 that mates with the battery connection female head 13. Both are made of anti-oxidation metal material, and the inner wall of the female head is provided with an elastic conductive sheet to ensure reliable conductivity.
[0042] Magnetic component 2: A first magnetic piece 21 is embedded in the top of the upper housing 11, and a second magnetic piece 22 is embedded in the corresponding position at the bottom of the lower housing 12. The first magnetic piece 21 and the second magnetic piece 22 are permanent magnets with opposite magnetic poles on opposite sides, and the battery is initially positioned by magnetic attraction.
[0043] Mechanical snap-fit component 3:
[0044] Guide component 31: Limiting frame 311 is fixed inside battery 1, and limiting block 312 is slidably arranged inside the limiting frame. The limiting block is fixedly connected to the locking block 32.
[0045] The connecting member 313 is hinged to the center of the limiting block 312. The connecting member 313 is provided with a first limiting block 316, and the limiting block 312 is provided with a second limiting block 317. They cooperate with the first limiting groove 314 and the second limiting groove 315 on the limiting frame. The first limiting groove 314 is an inverted L-groove, and the second limiting groove 315 is an upright L-groove. The bottom of both the first limiting groove 314 and the second limiting groove 315 is open. The first limiting block 316 and the second limiting block 317 are both cylindrical. The first limiting block 316 and the second limiting block 317 slide in the first limiting groove 314 and the second limiting groove 315.
[0046] A spring 318 is provided between one end of the connecting member 313 and the inner wall of the lower housing 12, and the other end extends to the outside of the battery to form a handle 319.
[0047] Snap-fit engagement: The snap-fit blocks 32 of adjacent batteries 1 are correspondingly set with the snap-fit slots 33. In the first step, by pressing the handle 319, the connecting member 313 overcomes the elastic force of the spring 318. Under the action of the first limiting groove 314 and the second limiting groove 315, the connecting member 313 and the limiting block 312 are driven to slide on the limiting frame 311. At this time, the hook part of the snap-fit block 32 of the adjacent battery 1 is disengaged from the snap-fit slot 33. In the second step, it slides along the height direction of the first limiting groove 314 or the second limiting groove 315. The connecting member 313 rotates along the hinge point of the limiting block 312 to overcome the elastic force of the spring 318, lifting the limiting block 312 upward, so that the snap-fit block 32 of the adjacent battery 1 is completely disengaged from the snap-fit slot 33, realizing the rapid separation and connection of the battery pack.
[0048] Electrode insertion structure 4: Electrode pins 41 and electrode holes 42 are respectively provided on opposite sides of adjacent batteries 1, and the surfaces are plated with a metal layer to reduce contact resistance and ensure conductivity.
[0049] Technical benefits: Dual connection stability: Magnetic components provide pre-positioning, mechanical snap-fit achieves rigid fixation, and electrode insertion ensures reliable conductivity. The three work together to improve the overall connection strength of the battery pack.
[0050] Easy disassembly and assembly: The mechanical locking components can be operated with a handle to quickly separate or assemble the battery pack, improving maintenance efficiency.
[0051] Anti-oxidation design: The female and male battery connectors are made of anti-oxidation materials to extend their service life.
[0052] Example 2, based on Example 1, further optimizes the battery connection structure by adding a positioning component 5, as follows:
[0053] Positioning component 5:
[0054] A positioning groove 51 is provided on the top of the upper housing 11, and the first magnet piece 21 is embedded in the groove.
[0055] The top of the lower housing 12 has a protruding positioning block 52 that engages with the positioning groove 51.
[0056] The positioning groove 51 has an elastic sealing gasket on its groove wall, and the positioning block 52 has a corresponding sealing groove on its outer side wall, forming a waterproof sealing structure.
[0057] Other improvements: The thickness of the metal layer on the surface of electrode pins 41 and electrode holes 42 is increased, further improving conductivity and corrosion resistance.
[0058] Technical effects:
[0059] Precise positioning: The positioning component ensures that the magnetic poles, electrodes and snap-fit structures of adjacent batteries 1 are precisely aligned, avoiding poor contact or snap-fit failure caused by misalignment.
[0060] Waterproof sealing: The elastic sealing gasket and sealing groove work together to prevent liquid from entering the battery connection and improve the reliability of the battery pack in humid environments.
[0061] Structural reinforcement: The mechanical cooperation between the positioning block and the positioning groove enhances the impact resistance of the battery pack and reduces connection loosening caused by vibration.
[0062] Summary of implementation methods:
[0063] This invention achieves stable connection and convenient maintenance of the battery pack through a triple design of magnetic attraction, mechanical snap-fit, and electrode insertion. Embodiment 1 provides the basic structure, while Embodiment 2 further enhances performance through positioning components and a sealing design. Each embodiment can be implemented individually or used in combination to meet the needs of different application scenarios.
[0064] The above description is only for illustrating the present utility model. It should be understood that the present utility model is not limited to the above embodiments, and various modifications that conform to the concept of the present utility model are within the protection scope of the present utility model.
Claims
1. A dual-connection structure for a battery, characterized in that, include: Multiple sets of batteries (1), adjacent batteries (1) are connected in a dual manner through magnetic attraction components (2), mechanical snap-fit components (3) and electrode insertion structure (4); Among them, adjacent batteries (1) are energized through electrode insertion structure (4); The mechanical locking component (3) includes: a guide member (31) disposed in the battery (1), a locking block (32) disposed in the battery (1), and a locking slot (33) disposed in the battery (1). The guide member (31) cooperates with the locking block (32), and the guide member (31) can drive the locking block (32) to move, so that adjacent batteries (1) can be separated and joined through the locking block (32) and the locking slot (33).
2. The dual connection structure for a battery according to claim 1, characterized in that, The guide member (31) includes: a limiting frame (311) fixed inside the battery (1), a limiting block (312) slidably disposed inside the limiting frame (311), the limiting block (312) being fixedly connected to the locking block (32), a connecting member (313) hinged to the center position of the limiting block (312), a first limiting groove (314) and a second limiting groove (315) provided on the limiting frame (311), and the connecting member (313) and the limiting block (312) respectively provided with a first limiting block (316) and a second limiting block (317) cooperating with the first limiting groove (314) and the second limiting groove (315); A spring (318) is provided between one end of the connecting member (313) and the inner wall of the lower housing (12), and a handle (319) is provided at the other end of the connecting member (313).
3. The dual connection structure for a battery according to claim 2, characterized in that, Each battery (1) includes an upper housing (11) and a lower housing (12) that are interlocked; the upper housing (11) is provided with a battery connection female (13), and the lower housing (12) is provided with a battery connection male (14) that mates with the battery connection female (13).
4. The dual connection structure for a battery according to claim 3, characterized in that, The magnetic attraction component (2) includes: a first magnet piece (21) fixed on the upper housing (11) and a second magnet piece (22) fixed on the lower housing (12) and corresponding to the position of the first magnet piece (21).
5. A dual connection structure for a battery according to claim 4, characterized in that, It also includes a positioning component (5), which includes: A positioning groove (51) is formed on the upper housing (11), and the first magnet piece (21) is embedded in the positioning groove (51); A positioning block (52) protrudes from the top of the lower housing (12) and is inserted into the positioning groove (51).
6. The dual connection structure for a battery according to claim 3, characterized in that, Both the female battery connector (13) and the male battery connector (14) are made of anti-oxidation metal material, and the inner wall of the female battery connector (13) is provided with an elastic conductive sheet.
7. A dual connection structure for a battery according to claim 4, characterized in that, The first magnet (21) and the second magnet (22) are both permanent magnets, and the magnetic poles of the opposite sides of the first magnet (21) and the second magnet (22) are opposite.
8. A dual connection structure for a battery according to claim 5, characterized in that, The positioning groove (51) has an elastic sealing gasket on its groove wall, and the positioning block (52) has a sealing groove on its outer side wall that cooperates with the elastic sealing gasket.
9. A dual connection structure for a battery according to claim 1, characterized in that, The electrode insertion structure (4) includes an electrode pin (41) and an electrode socket (42). The electrode pin (41) and the electrode socket (42) are respectively disposed on opposite sides of adjacent batteries (1), and the surfaces of the electrode pin (41) and the electrode socket (42) are plated with a metal layer.