Novel convex structure hardware charging spring piece

CN224789978UActive Publication Date: 2026-09-22DONGGUAN SANJI ELECTRONICS
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Patent Information

Application Number
CN202521960870.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-12
Publication Date
2026-09-22
Estimated Expiration
2035-09-12

AI Technical Summary

Technical Problem

[0003]传统充电弹片存在以下缺陷:一、多采用单一弹片结构,缺乏有效的限位和加固设计,在长期使用中易出现弹片过度形变、接触偏移的问题,导致充电接触不良;二、传统弹片的安装定位结构简单,仅依靠单一孔位固定,在设备装配或振动环境下易发生位置偏移,影响充电稳定性

Benefits of technology

[0012]与现有技术相比,本实用新型所达到的有益效果是:本实用新型通过设计新型结构,既解决了传统弹片易形变、定位不准的问题,又增强了整体结构强度,提升了充电接触的稳定性和使用寿命,同时简化了安装流程,适配多种电子设备的充电场景需求,兼具实用性与可靠性,还采用模具的加工方式来实现完成品,其成本优势非常明显。

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Abstract

The utility model discloses a novel convex hull structure hardware charging spring piece, including casing, connecting plate, inner hook, reinforcing bar, spring piece belt material edge, big spring piece, second positioning hole, contact point, first positioning hole, outer hook, small spring piece, small hook and limit block, casing is fixedly connected with big spring piece in, and the other end fixedly connected with small spring piece of big spring piece, and the other end fixedly connected with connecting plate of small spring piece, and the upper surface fixedly connected with contact point of connecting plate, and the both sides outer wall on connecting plate is fixedly connected with limit block, the utility model discloses through design novel structure, both solved the traditional spring piece easy deformation, the problem of inaccurate positioning, strengthened the overall structural strength again, improved charging contact's stability and service life, simplified the installation process simultaneously, adapts the charging scene demand of a variety of electronic equipment, has the practicability and reliability simultaneously, still adopts the processing mode of mould to realize the finished product, and its cost advantage is very obvious.
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Description

Technical Field

[0001] This utility model relates to the field of charging spring technology, and in particular to a novel convex-hull structure metal charging spring. Background Technology

[0002] In the field of electronic device charging connections, charging contacts have been used as core contact components for many years. They are widely used in various scenarios that require frequent plugging and unplugging or contact charging, such as smart bracelets, Bluetooth headsets, and small chargers. They are a key component to ensure the power transmission of devices.

[0003] Traditional charging contacts have the following drawbacks: First, they mostly use a single contact structure and lack effective limiting and reinforcement designs. Over long-term use, they are prone to excessive deformation and contact misalignment, resulting in poor charging contact. Second, the installation and positioning structure of traditional contacts is simple, relying only on a single hole for fixation. In equipment assembly or vibration environments, they are prone to positional misalignment, affecting charging stability. Utility Model Content

[0004] The purpose of this invention is to provide a novel convex-hull structure metal charging spring to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a novel convex-hull structure metal charging spring, including a housing, a large spring fixedly connected inside the housing, a small spring fixedly connected to the other end of the large spring, a connecting plate fixedly connected to the other end of the small spring, a contact point fixedly connected to the upper surface of the connecting plate, and limit blocks fixedly connected to the outer walls on both sides of the connecting plate.

[0006] As a further technical solution of this utility model, a positioning plate is fixedly connected to one side of the outer wall of the housing, a first positioning hole is opened on the upper surface of the positioning plate, and an outer hook is fixedly connected to one side of the outer wall of the positioning plate.

[0007] As a further technical solution of this utility model, a positioning platform is fixedly connected inside the housing, and a second positioning hole is provided on the upper surface of the positioning platform.

[0008] As a further technical solution of this utility model, limiting plates are fixedly connected to the outer walls on both sides of the shell.

[0009] As a further technical solution of this utility model, reinforcing ribs and hook openings are provided on the outer walls of both sides of the shell.

[0010] As a further technical solution of this utility model, an inner hook is fixedly connected to the outer wall of the hook opening.

[0011] As a further technical solution of this utility model, a spring strip material edge is provided on one side of the outer wall of the housing, and a small hook is fixedly connected to one side of the outer wall of the housing.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: By designing a new structure, this utility model not only solves the problems of easy deformation and inaccurate positioning of traditional spring contacts, but also enhances the overall structural strength, improves the stability and service life of charging contacts, simplifies the installation process, adapts to the charging scenario needs of various electronic devices, and combines practicality and reliability. Furthermore, it adopts a mold processing method to realize the finished product, which has a very obvious cost advantage. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention from another perspective;

[0016] Figure 3 This is a schematic diagram of the overall side view structure of this utility model;

[0017] Figure 4 This is a top view schematic diagram of the overall structure of this utility model.

[0018] In the diagram: 1. Shell; 2. Connecting plate; 3. Inner hook; 4. Hook opening; 5. Reinforcing rib; 6. Spring strip with material edge; 7. Large spring strip; 8. Second positioning hole; 9. Contact point; 10. First positioning hole; 11. Outer hook; 12. Positioning plate; 13. Positioning platform; 14. Small spring strip; 15. Small hook; 16. Limiting block; 17. Limiting plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Please see the appendix Figure 1 -Appendix Figure 4 This utility model provides an embodiment of a novel convex-hull structure metal charging spring, comprising a housing 1, a large spring 7 fixedly connected inside the housing 1, the large spring 7 providing elasticity, a small spring 14 fixedly connected to the other end of the large spring 7, a connecting plate 2 fixedly connected to the other end of the small spring 14, a contact point 9 fixedly connected to the upper surface of the connecting plate 2, the contact point 9 contacting the device, limit blocks 16 fixedly connected to the outer walls on both sides of the connecting plate 2, a positioning plate 12 fixedly connected to one outer wall of the housing 1, a first positioning hole 10 formed on the upper surface of the positioning plate 12, and an outer hook 11 fixedly connected to one outer wall of the positioning plate 12, the housing 1 being fixedly... A positioning platform 13 is connected, and a second positioning hole 8 is provided on the upper surface of the positioning platform 13. Limiting plates 17 are fixedly connected to the outer walls of both sides of the housing 1. The limiting plates 17 prevent the limiting block 16 from moving excessively by contact limiting, and protect the small spring piece 14 on the other hand. Reinforcing ribs 5 and hook openings 4 are provided on the outer walls of both sides of the housing 1. The reinforcing ribs 5 improve the structural rigidity of the housing 1. An inner hook 3 is fixedly connected to the outer wall of the hook opening 4. The inner hook 3 limits the downward pressing height of the large spring piece 7. A spring piece carrying edge 6 is provided on one outer wall of the housing 1. A small hook 15 is fixedly connected to one outer wall of the housing 1. The small hook 15 assists the housing 1 in fixing the equipment.

[0021] Working principle: When using this utility model, the contact point 9 contacts the device and begins to press down, causing the connecting plate 2 to move synchronously with the small spring piece 14. The housing 1, as the basic load-bearing component of the entire spring piece structure, provides stable support for all components. The large spring piece 7, with its own elasticity, assists in buffering during the pressing process and provides elastic force for subsequent reset, ensuring that the structure can return to its initial state after pressing. As the small spring piece 14 moves, the limiting block 16 rises and contacts the limiting plate 17. The limiting plate 17, on the one hand, prevents the limiting block 16 from moving excessively through contact limiting, and on the other hand, protects the small spring piece 14 from damage due to excessive deformation. The positioning plate 12 and the positioning platform 13 respectively connect to the second positioning plate through the first positioning hole 10. Positioning holes 8 assist in the precise positioning and installation of the spring piece within the equipment. Simultaneously, positioning plate 12 is welded and fixed to the PCB board, further enhancing the connection stability between the spring piece and the equipment. Outer hook 11 is used to fix the equipment to the housing 1, while inner hook 3 limits the downward pressure height of the large spring piece 7, preventing it from malfunctioning due to excessive deformation during operation. Reinforcing rib 5 improves the structural rigidity of the housing 1, enhancing its overall resistance to external forces and preventing the baffle from deforming under stress. It also provides installation support for small hook 15, which assists the housing 1 in fixing the equipment. The spring piece's material-carrying edge 6 facilitates the material-carrying of parts. All components work together to ensure that the entire spring piece stably achieves the charging function and is not easily damaged during long-term use.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A novel convex-hull structure metal charging spring, comprising a housing (1), characterized in that: A large spring sheet (7) is fixedly connected inside the housing (1). A small spring sheet (14) is fixedly connected to the other end of the large spring sheet (7). A connecting plate (2) is fixedly connected to the other end of the small spring sheet (14). A contact point (9) is fixedly connected to the upper surface of the connecting plate (2). Limiting blocks (16) are fixedly connected to the outer walls on both sides of the connecting plate (2).

2. The novel convex-hull structure metal charging spring according to claim 1, characterized in that: A positioning plate (12) is fixedly connected to one side of the outer wall of the housing (1). A first positioning hole (10) is opened on the upper surface of the positioning plate (12). An outer hook (11) is fixedly connected to one side of the outer wall of the positioning plate (12).

3. The novel convex-hull structure metal charging spring according to claim 1, characterized in that: A positioning platform (13) is fixedly connected inside the housing (1), and a second positioning hole (8) is provided on the upper surface of the positioning platform (13).

4. The novel convex-hull structure metal charging spring according to claim 1, characterized in that: Limiting plates (17) are fixedly connected to the outer walls on both sides of the housing (1).

5. The novel convex-hull structure metal charging spring according to claim 1, characterized in that: The outer walls on both sides of the housing (1) are provided with reinforcing ribs (5) and hook openings (4).

6. The novel convex-hull structure metal charging spring according to claim 5, characterized in that: An inner hook (3) is fixedly connected to the outer wall of the hook opening (4).

7. The novel convex-hull structure metal charging spring according to claim 1, characterized in that: A spring clip edge (6) is provided on one side of the outer wall of the housing (1), and a small hook (15) is fixedly connected to one side of the outer wall of the housing (1).