Elastic sheet with double-layer structure

Abstract

The utility model discloses an elastic sheet with a double-layer structure. The elastic sheet comprises a first plate-shaped base part; the side walls are formed by bending and extending the two side edges of the first plate-shaped base part respectively and are oppositely arranged; the elastic part extends out of an open space formed between the two side walls from one end of the first plate-shaped base part; one end of the first plate-shaped base part is bent outwards and extends to form a first plate-shaped base part, the other end of the first plate-shaped base part is bent outwards and extends to form a second plate-shaped base part, one side edge of the second plate-shaped base part is bent and extends upwards to form a first protection wing, one side edge of the first protection wing is bent and extends to form a connecting part, and the other side edge of the connecting part extends to form a second protection wing. According to the elastic piece with the double-layer structure, the design of the double-layer structure and the welding pins is adopted, the elastic piece can be prevented from deforming, the service life of the elastic piece can be prolonged, the welding strength of the elastic piece can be enhanced, and meanwhile the performance requirement of a product can be met.

Description

Technical Field

[0001] This utility model relates to the field of spring technology, and in particular to a spring with a double-layer structure. Background Technology

[0002] With the rapid development of technology, people have increasingly higher standards for the use and appearance of mobile phones. The increasing convenience of mobile phones and other products has driven the miniaturization of internal hardware. This requires that the spring contact product meet the requirements of miniaturization within the overall device while also maintaining the soldering strength required during SMT soldering. Current technologies often fail to achieve sufficient soldering strength, leading to an increase in the solder area and further enlarging the overall machine structure, resulting in increased costs and space requirements. Therefore, it is necessary to design a spring contact to solve the problems of existing technologies. By designing a double-layer spring contact, we can increase soldering strength, prevent spring deformation, effectively reduce the overall machine's space requirements, save costs, and extend the spring contact's lifespan. Utility Model Content

[0003] This utility model provides a double-layer spring sheet. While meeting the requirements of miniaturization, the double-layer structure and welded pin design can prevent the spring sheet from deforming, improve the welding strength of the spring sheet, and meet the performance requirements of the product.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A double-layered spring sheet is provided, including a first plate-shaped base;

[0006] The sidewalls are formed by bending and extending the two sides of the first plate-shaped base, and are disposed opposite to each other;

[0007] The elastic portion extends from one end of the first plate-shaped base into the open space formed between the two side walls;

[0008] The other end of the first plate-shaped base is bent outward and extends into a second plate-shaped base. One side edge of the second plate-shaped base is bent and extends upward into a first protective wing. One side edge of the first protective wing is bent and extends into a connecting portion. The other side edge of the connecting portion extends into a second protective wing.

[0009] Preferably, the first protective wing and the second protective wing are arranged opposite to each other.

[0010] Preferably, the upper and lower edges of the second protective wing extend outward to form at least two parallel welding pins.

[0011] Preferably, the elastic part includes a first elastic arm, a contact part, a second elastic arm, and a limiting part in sequence. The contact part is a protruding structure, and at least one top of the two side walls is provided with a stop part that cooperates with the limiting part.

[0012] Preferably, at least one top side edge of the two side walls extends inward to form a protective portion, which cooperates with the first elastic arm to limit movement.

[0013] Preferably, a first fixing part is provided above the protective part, which is an "L"-shaped structure formed by extending inward from the top of the second protective wing and bending.

[0014] Preferably, the first fixing part has a plane for the suction surface.

[0015] Preferably, a second fixing part is provided below the second plate-shaped base, which is an "L"-shaped structure formed by extending inward from the bottom of the second protective wing and bending.

[0016] Preferably, the double-layered spring sheet is an integral structure formed by bending a metal sheet.

[0017] The beneficial effects of this utility model are as follows: This utility model provides a double-layer spring sheet. While meeting the requirements of product miniaturization, the double-layer structure formed by the side wall, the first protective wing and the second protective wing and the design of the welding pin can not only prevent the spring sheet from deforming, extend the life of the spring sheet, and save costs, but also enhance the welding strength of the spring sheet, effectively reduce the space structure of the whole machine, and at the same time meet the performance requirements of the product. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure from another perspective of an embodiment of the present utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0021] The reference numerals in the accompanying drawings include:

[0022] The double-layered spring clip-1, first plate-shaped base-20, side wall-30, stop-part-301, protective part-302, elastic part-40, first elastic arm-401, contact part-402, second elastic arm-403, limiting part-404, second plate-shaped base-50, first protective wing-60, connecting part-70, second protective wing-80, welding pin-801, first fixing part-802, suction surface-8021, and second fixing part-803. Detailed Implementation

[0023] This application provides a double-layer spring sheet. While achieving miniaturization, the double-layer structure and welded pin design can prevent deformation of the spring sheet, improve the welding strength of the spring sheet, and meet the performance requirements of the product.

[0024] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0025] like Figures 1 to 3 The following is an embodiment of this application:

[0026] A double-layered spring clip 1 includes a first plate-shaped base 20; sidewalls 30 formed by bending and extending the two side edges of the first plate-shaped base 20 respectively, and disposed opposite to each other; an elastic portion 40 extending from one end of the first plate-shaped base 20 into an open space formed between the two side walls 30; the other end of the first plate-shaped base 20 bends outward and extends into a second plate-shaped base 50, one side edge of the second plate-shaped base 50 bends and extends upward into a first protective wing 60, one side edge of the first protective wing 60 bends and extends into a connecting portion 70, and the other side edge of the connecting portion 70 extends into a second protective wing 80; the first... A first protective wing 60 and a second protective wing 70 are arranged opposite to each other; the first protective wing 60, the connecting part 70, and the second protective wing 80 form a frame structure, and the two side walls 30 and the open space they form are located within the frame structure. The frame structure and the side walls 30 constitute a double-layer structure. When the spring is over-pressurized during operation, the side walls 30 provide the first layer of protection against deformation of the spring, and the first protective wing 60 and the second protective wing 80 provide the second layer of protection against deformation of the spring. The double-layer structure effectively protects the spring, preventing it from deforming or being damaged due to over-pressurization, thereby improving the structural stability and service life of the spring.

[0027] Furthermore, the outer surface of the second protective wing 80 serves as the welding surface for SMT soldering. In this embodiment, the upper and lower edges of the second protective wing 80 extend outward to form two parallel soldering pins 801. The soldering pins 801 can increase the contact area and connection points between the spring and the external structure, increase the welding strength, make the welding more secure, and reduce problems such as poor contact or detachment caused by weak welding. In addition, the soldering pins can ensure a good electrical connection between the spring and the circuit board or other conductive components, reduce contact resistance, improve conductivity, and ensure stable current transmission.

[0028] In this embodiment, the elastic part 40 sequentially includes a first elastic arm 401, a contact part 402, a second elastic arm 403, and a limiting part 404. The contact part 403 is a protruding structure, which is used to improve the stability of the contact part 403 in contact with the component and improve the stability of the spring sheet signal transmission. One of the tops of the two side walls 30 is provided with a stop part 301 that cooperates with the limiting part 404. One of the top side edges of the two side walls 30 extends inward to form a protective part 302. The protective part 302 cooperates with the first elastic arm 401 to limit the movement. The stop part 301 stops and limits the limiting part 404 to prevent excessive deformation from causing the spring sheet to disengage, thus playing a protective role. The protective part 302 further protects the elastic part 40 to prevent the spring sheet from excessively deforming and disengaging, achieving the effect of double protection for the spring sheet.

[0029] Furthermore, a first fixing part 802 is provided above the protective part 302. The first fixing part 802 is an "L"-shaped structure formed by extending inward from the top of the second protective wing 80 and bending. The first fixing part 802 has a plane for SMT soldering suction surface 8021. A second fixing part 803 is provided below the second plate-shaped base 50. The second fixing part 803 is an "L"-shaped structure formed by extending inward from the bottom of the second protective wing 80 and bending. The provision of the first fixing part 802 and the second fixing part 803 significantly improves the structural stability and deformation resistance of the spring under stress conditions, effectively extends the service life of the spring, and thus improves the overall reliability and durability of the related products.

[0030] In this embodiment, the double-layered spring sheet is an integral structure formed by bending a metal sheet. The spring sheet formed by bending the metal sheet can maintain good elasticity, and the integral structure reduces complex processes such as welding, thereby reducing production costs.

[0031] In summary, the double-layer spring provided by this utility model, while meeting the requirements of product miniaturization, adopts a double-layer structure formed by sidewalls, first protective wing and second protective wing, and a welded pin design. This not only prevents spring deformation, ensures structural stability, extends the life of the spring, and saves costs, but also enhances the welding strength of the spring, effectively reduces the overall space structure of the machine, and meets the performance requirements of the product.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A double-layered spring clip, characterized in that, Includes a first plate-like base; The sidewalls are formed by bending and extending the two sides of the first plate-shaped base, and are disposed opposite to each other; The elastic portion extends from one end of the first plate-shaped base into the open space formed between the two side walls; The other end of the first plate-shaped base is bent outward and extends into a second plate-shaped base. One side edge of the second plate-shaped base is bent and extends upward into a first protective wing. One side edge of the first protective wing is bent and extends into a connecting portion. The other side edge of the connecting portion extends into a second protective wing.

2. The double-layered spring sheet according to claim 1, characterized in that, The first protective wing and the second protective wing are arranged opposite to each other.

3. The double-layered spring sheet according to claim 2, characterized in that, The upper and lower edges of the second protective wing extend outward to form at least two parallel welding pins.

4. The double-layered spring sheet according to claim 1, characterized in that, The elastic part includes a first elastic arm, a contact part, a second elastic arm, and a limiting part in sequence. The contact part is a protruding structure, and at least one top of each of the two side walls is provided with a stop part that cooperates with the limiting part.

5. A double-layered spring sheet according to claim 4, characterized in that, At least one top edge of each of the two side walls extends inward to form a protective portion, which cooperates with the first elastic arm to limit its movement.

6. A double-layered spring sheet according to claim 5, characterized in that, A first fixing part is provided above the protective part, which is an "L"-shaped structure that extends inward from the top of the second protective wing and bends.

7. A double-layered spring sheet according to claim 6, wherein the first fixing part has a plane for absorbing surface.

8. A double-layered spring sheet according to claim 6, characterized in that, A second fixing part is provided below the second plate-shaped base. The second fixing part is an "L"-shaped structure that extends inward from the bottom of the second protective wing and bends.

9. A double-layered spring sheet according to any one of claims 1-8, characterized in that, The double-layered spring sheet is an integral structure formed by bending a metal sheet.

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