Battery elastic sheet structure
The integrated battery spring structure solves the problem of low production efficiency in existing technologies, achieving efficient and stable connection between the battery spring and the PCB board, and improving the convenience and precision of automated assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU KAILIDE ELECTRONICS CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-28
AI Technical Summary
The existing battery spring has a separate structure for the negative electrode elastic element and the negative electrode spring, which results in low production efficiency and inconvenient assembly.
The battery spring adopts an integrated structure, including a bent elastic contact piece, a welding piece, a fixing foot, and a suction piece. It is formed by one-piece stamping and combined with nickel plating and tin plating to ensure a stable connection with the PCB board and convenient automated assembly.
It improves the processing efficiency and assembly accuracy of battery contacts, ensures a stable connection with the PCB board, and simplifies the automated production process.
Smart Images

Figure CN224177517U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of battery spring technology, and more specifically, it relates to a battery spring structure. Background Technology
[0002] Battery contacts are key components in electronic devices used to establish a stable electrical connection between the battery and the circuit. Through their elasticity and conductivity, they ensure reliable electrical contact between the positive and negative terminals of the battery and the circuit of the electronic device, thereby conducting current and maintaining the normal operation of the device.
[0003] Existing battery spring contacts typically consist of a positive electrode and a negative electrode. The positive electrode spring contact is usually a raised end with a smooth surface, while the negative electrode spring contact usually has an elastic element on its surface to press the battery in place. In existing technology, the elastic element on the negative electrode spring contact side is usually a spring, and its connection to the negative electrode spring contact is achieved through processes such as welding and riveting. Since the elastic element and the negative electrode spring contact are not an integral structure, secondary assembly is required during production, resulting in low overall production efficiency. Therefore, in view of this, this paper studies and improves the existing structure and its shortcomings, providing a battery spring contact structure with greater practical value. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a battery spring structure, which is achieved by the following specific technical means:
[0005] A battery spring structure includes a battery spring, one side of which is bent with an elastic contact piece, and the other side of which is provided with a soldering area for connection with a PCB board. The soldering area includes a soldering piece and a fixing foot, and the soldering piece is arranged perpendicular to the battery spring.
[0006] Furthermore, the fixing feet are provided in two sets, and the welding pieces are provided in three sets, with the fixing feet spaced apart between the two sets of fixing feet.
[0007] Furthermore, the welding tabs at both ends face opposite directions to the welding tab in the middle, and the orientation of the welding tabs at both ends is consistent with the location of the elastic contact tab.
[0008] Furthermore, one side of the battery spring is bent with a suction plate for connecting to the nozzle of the SMT pick and place machine; the suction plate is positioned directly above the middle soldering piece and parallel to it.
[0009] Furthermore, the suction plate, welding plate, fixing foot, and elastic contact plate are integrated with the battery spring, and are formed by integral stamping.
[0010] Furthermore, the battery spring is made of nickel-plated stainless steel; the surface of the welding piece is provided with a tin-plated layer.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] This invention, by adopting an integrated molding structure, can effectively improve the processing efficiency of battery spring contacts and make the structure more stable and reliable. At the same time, the setting of fixed feet and oppositely arranged welding pieces can ensure high positional accuracy and firm reliability when assembling with PCB board. In addition, the setting of suction pieces can provide a convenient adsorption area for SMT placement machines during automated assembly production, which is conducive to rapid material picking and thus facilitates assembly production. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 .
[0014] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 .
[0015] Figure 3 This is a schematic diagram of the overall structure of this utility model. Figure 3 .
[0016] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0017] 1. Battery spring; 11. Elastic contact piece; 12. Welding piece; 121. Fixing foot; 13. Material suction piece. Detailed Implementation
[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0019] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] Example:
[0022] As attached Figure 1 To be continued Figure 3 As shown:
[0023] This utility model provides a battery spring structure, including a battery spring 1. One side of the battery spring 1 is bent with an elastic contact piece 11, and the other side of the battery spring 1 is provided with a welding area for connection with a PCB board. The welding area includes a welding piece 12 and a fixing foot 121. The welding piece 12 is arranged perpendicular to the battery spring 1 so that after welding with the PCB board, the battery spring 1 can be stably erected on one side of the PCB board.
[0024] The fixing feet 121 are provided in two sets, and the welding pieces 12 are provided in three sets, with the fixing feet 121 spaced apart. By setting the fixing feet 121, the whole assembly can be quickly and accurately inserted into the designated installation position on the PCB board before welding, so as to facilitate subsequent welding and ensure positional accuracy and stability.
[0025] The welding pieces 12 at both ends face opposite directions to the welding piece 12 in the middle. By setting them in opposite directions, the battery spring piece 1 can be supported from left to right to improve the overall stability. The welding pieces 12 at both ends face the same direction as the elastic contact piece 11 to prevent interference with the movement of the elastic contact piece 11.
[0026] The battery spring 1 has a suction plate 13 bent on one side for connecting to the nozzle of the SMT pick and place machine. The suction plate 13 is located directly above and parallel to the middle soldering piece 12. The suction plate 13 facilitates the rapid and stable adsorption of the SMT pick and place machine nozzle during assembly, which is convenient for assembly production.
[0027] The suction plate 13, welding plate 12, fixing foot 121 and elastic contact plate 11 are integral with the battery spring plate 1 and are integrally stamped.
[0028] The battery spring 1 is made of nickel-plated stainless steel; the welding piece 12 has a tin-plated layer on its surface, which improves the welding performance with the PCB board.
[0029] The working principle of this embodiment is as follows: This product includes a battery spring formed by metal stamping, which can be directly soldered onto the PCB board via SMT reflow soldering. Its structure consists of a battery spring 1, an elastic contact piece 11, a soldering piece 12, a suction piece 13, and a fixing foot 121. The elastic contact piece 11 is the negative terminal contact area of the battery, the soldering piece 12 is soldered to the PCB, and the fixing foot 121 has the function of fixing the product's position on the PCB. After the suction piece 13 is picked up by the nozzle of the SMT pick-and-place machine and placed onto the PCB, it is firmly fixed on the PCB board after reflow soldering.
[0030] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A battery spring structure, comprising a battery spring (1), characterized in that: One side of the battery spring (1) is bent with an elastic contact piece (11), and the other side of the battery spring (1) is provided with a welding area connected to the PCB board. The welding area includes a welding piece (12) and a fixing foot (121). The welding piece (12) is arranged perpendicular to the battery spring (1).
2. The battery spring structure as described in claim 1, characterized in that: The fixing feet (121) are provided in two sets, and the welding pieces (12) are provided in three sets, with the fixing feet (121) spaced apart between the two sets of fixing feet (121).
3. The battery spring structure as described in claim 2, characterized in that: The welding pieces (12) at both ends face opposite directions to the welding piece (12) in the middle, and the welding pieces (12) at both ends face the same direction as the elastic contact piece (11).
4. The battery spring structure as described in claim 3, characterized in that: The battery spring (1) has a suction plate (13) bent on one side for connecting to the nozzle of the SMT pick and place machine; the suction plate (13) is located directly above the middle soldering plate (12) and is parallel to it.
5. The battery spring structure as described in claim 4, characterized in that: The suction plate (13), welding plate (12), fixing foot (121) and elastic contact plate (11) are integrated with the battery spring plate (1) and are formed by integral stamping.
6. The battery spring structure as described in claim 5, characterized in that: The battery spring (1) is made of stainless steel with nickel plating; the surface of the welding piece (12) is provided with a tin plating layer.