Elastic sheet connector

Abstract

The utility model discloses an elastic sheet connector, which comprises a plate-shaped base part, two side edges of the plate-shaped base part are respectively bent and extend to form two side walls which are oppositely arranged, one end of the plate-shaped base part extends into an open space formed between the two side walls to form an elastic part, and the other end of the plate-shaped base part extends into the open space. The elastic part comprises a first elastic arm, a first supporting part, a second elastic arm, a second supporting part and a third elastic arm, the first elastic arm is connected with the plate-shaped base part and extends to form the first supporting part, the first supporting part is bent to form the second elastic arm, the second elastic arm extends to form the second supporting part, and the third elastic arm is bent to form the second supporting part. And the second supporting part is bent and extends to form a third elastic arm. When the elastic sheet connector is pressed, the stroke is short, the force value is large, overpressure and elastic sheet deformation can be prevented, production waste is reduced, and functional characteristics of products can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a spring connector. Background Art

[0002] Key shrapnel is mainly used in membrane switches, dome contact switches, PCB boards, FPC boards, medical devices and other products. The working principle of the key shrapnel: the key shrapnel on the membrane key is located in the conductive part of the PCB board. When pressed, the center point of the shrapnel bulges upward and contacts the circuit on the PCB, thereby forming a loop, and the current passes through, so that the entire product can work normally. The key shrapnel of the existing technology is prone to cause overvoltage when pressed, which in turn causes the shrapnel to deform, shortens its life, and causes production waste. Therefore, it can be seen that it is necessary to design a shrapnel that can prevent overvoltage when pressed, prevent the shrapnel from deforming, reduce production waste, and at the same time not affect the functional characteristics of the product and enable the product to meet the requirements of efficient operation. Utility Model Content

[0003] The utility model provides a spring-type connector, which can prevent overpressure, prevent spring type deformation, reduce production waste, and meet the functional characteristics of the product.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A spring connector is provided, comprising a plate-like base, wherein both side edges of the plate-like base are respectively bent and extended to form two oppositely arranged side walls, and an elastic portion extends from one end of the plate-like base into an open space formed between the two side walls. The elastic portion comprises a first elastic arm, a first supporting portion, a second elastic arm, a second supporting portion and a third elastic arm. The first elastic arm is connected to the plate-like base and extends to form a first supporting portion. The first supporting portion is bent to form a second elastic arm. The second elastic arm extends to form a second supporting portion. The second supporting portion is bent and extended to form a third elastic arm.

[0006] Preferably, the third elastic arm is a reverse-folded structure and is located in a space formed by the first supporting portion and the second supporting portion.

[0007] Preferably, the elastic portion is a double-layer structure extending from a side edge of one end of the plate-like base and bending to form an "8" shape.

[0008] Preferably, the second supporting portion extends outwardly protruding from a contact portion in a direction away from the plate-shaped base.

[0009] Preferably, the contact portion is a structure formed by a stamping and stretching process.

[0010] Preferably, a window structure is provided on at least one of the two side walls.

[0011] Preferably, both side edges of the first support portion extend toward the plate-like base and bend to form at least two opposite first protection arms, and both side edges of the second support portion bend toward the plate-like base and extend to form at least two opposite second protection arms.

[0012] Preferably, the first protective arm is located inside the window structure, the second protective arm is located outside the two side walls, and the second protective arm is located above the first protective arm.

[0013] Preferably, at least one welding hole is provided on the plate-shaped base.

[0014] The beneficial effect of the present invention is that: through the above arrangement, the present invention provides a spring connector, which is made by a stamping process, and the elastic part is designed as a double-layer inverted elastic structure. When pressed, the stroke is short and the force value is large, which reduces the deformation of the spring. In addition, a double-layer protective arm structure is designed to prevent the spring from being over-pressed when pressed, prevent the spring from being deformed, and reduce production waste, while not affecting the functional characteristics of the product and ensuring that the product meets the requirements of efficient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the utility model from another perspective;

[0017] Figure 3 A schematic cross-sectional view of an embodiment of the present utility model;

[0018] Figure 4 A bottom view of an embodiment of the utility model;

[0019] The reference numerals in the drawings of the specification include:

[0020] Spring clip connector-1, plate-shaped base-20, solder hole-201, side wall-30, window structure-301, elastic portion-40, first elastic arm-401, first support portion-402, first protective arm-4021, second elastic arm-403, second support portion-404, second protective arm-4041, third elastic arm-405, contact portion-50. DETAILED DESCRIPTION

[0021] The embodiment of the present application provides a spring connector to solve the technical problem in the prior art that when a key spring is pressed, the spring deformation is large, which easily causes overpressure, thereby causing the spring to deform, shorten the service life, and cause production waste.

[0022] The technical solution in the embodiments of the present application is to solve the above technical problems, and the overall idea is as follows:

[0023] A spring connector is designed, which is made through a stamping process. The elastic part is designed as a double-layer inverted elastic structure. When pressed, the stroke is short and the force is large, which reduces the deformation of the spring. In addition, a double-layer protective arm structure is designed to prevent the spring from being over-pressed and deformed when pressed, and reduce production waste. At the same time, it does not affect the functional characteristics of the product and ensures that the product meets the requirements of efficient operation.

[0024] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] like Figures 1 to 4 As shown, this is an embodiment of the present application:

[0026] A spring connector 1, wherein the two side edges of the plate-like base 20 are respectively bent and extended to form two oppositely arranged side walls 30, and one end of the plate-like base 20 extends an elastic portion 40 into the open space formed between the two side walls 30. The elastic portion 40 includes a first elastic arm 401, a first support portion 402, a second elastic arm 403, a second support portion 404 and a third elastic arm 405. The first elastic arm 401 is connected to the plate-like base 20 and extends to form the first support portion 402. The first support portion 402 is bent to form the second elastic arm 403. The second elastic arm 403 extends to form the second support portion 404. The second support portion 404 is bent and extended to form the third elastic arm 405.

[0027] Furthermore, the third elastic arm 405 is a reversed structure and is located in the space formed by the first support part 402 and the second support part 404. The reversed structure increases the force value, the downward stroke is short, and the force value is large. In this embodiment, the downward stroke is 0.4 mm, and the force value reaches more than 6N; the elastic part 40 is a double-layer structure in the shape of an "8" formed by extending and bending from the side edge of one end of the plate-like base. The elastic part 40 is in the open space formed between the two side walls 30. The two side walls 30 protect the elastic part 40 to achieve anti-scratch and anti-drift effects; in addition, the first elastic arm 401, the first support part 402, the second elastic part 403, the second support part-404, and the third elastic arm 405 form a double-layer reversed structure. When the spring sheet is pressed, the three elastic arms move together to disperse the force value, reduce the deformation of the product when it is pressed and rebounds to its original position, and increase the service life of the product.

[0028] In addition, the second support portion 404 extends a contact portion 50 protruding outward in a direction away from the plate-like base 20. The contact portion 50 is a structure formed by a stamping and stretching process. The second support portion 404 is used as a working surface for machine suction during welding.

[0029] In this embodiment, two window structures 301 are provided on the two side walls 30, and the two side edges of the first support portion 402 extend toward the plate-like base 20 and bend to form two opposite first protection arms 4021, and the two side edges of the second support portion 404 bend toward the plate-like base 20 and extend to form two opposite second protection arms 4041; the first protection arm 4021 is located in the window structure 301, and the second protection arm 4041 is located on the outside of the two side walls 30, and the second protection arm 4041 is located above the first protection arm 4021. When the spring sheet is pressed, the spring sheet is deformed, and the first protection arm 4021 hooks the lower half of the two side walls 30 through the window structure 301, and the second protection arm 4041 hooks the upper half of the two side walls 30. The double-layer protection arms prevent the two side walls from deforming and expanding due to overpressure.

[0030] In addition, the contact portion 50 is a structure formed by a stamping and stretching process; a fixing soldering hole 201 is provided on the plate-like base 20. When soldering, there will be excess tin fixed at the round hole in the fixing soldering hole 201, which is not easy to fall off and plays the role of fixing the spring piece.

[0031] To sum up, the utility model provides a spring connector, which is made by a stamping process and is designed with a double-layer protection structure to prevent the spring from being over-pressed, prevent the spring from being deformed and shortening its life, and reduce production waste. At the same time, it does not affect the functional characteristics of the product and enables the product to meet efficient operation requirements.

[0032] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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 above-described embodiments merely represent implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A spring connector, characterized in that: It includes a plate-like base, and both side edges of the plate-like base are respectively bent and extended to form two oppositely arranged side walls. One end of the plate-like base extends an elastic part into the open space formed between the two side walls. The elastic part includes a first elastic arm, a first supporting part, a second elastic arm, a second supporting part and a third elastic arm. The first elastic arm is connected to the plate-like base and extends to form a first supporting part. The first supporting part is bent to form a second elastic arm. The second elastic arm extends to form a second supporting part. The second supporting part is bent and extended to form a third elastic arm.

2. The spring connector according to claim 1, wherein: The third elastic arm is a reverse-folded structure and is located in a space formed by the first supporting portion and the second supporting portion.

3. The spring connector according to claim 1, wherein: The elastic portion is a double-layer structure extending from a side edge of one end of the plate-shaped base and bending to form an "8" shape.

4. The spring connector according to claim 1, wherein: The second supporting portion extends outwardly to form a contact portion protruding in a direction away from the plate-shaped base.

5. The spring connector according to claim 4, characterized in that: The contact portion is a structure formed by a stamping and stretching process.

6. The spring connector according to claim 1, wherein: At least one of the two side walls is provided with a window structure.

7. The spring connector according to claim 6, characterized in that: Both side edges of the first support portion extend toward the plate-shaped base and bend to form at least two opposite first protection arms, and both side edges of the second support portion bend toward the plate-shaped base and extend to form at least two opposite second protection arms.

8. The spring connector according to claim 7, wherein: The first protection arm is located in the window structure, the second protection arm is located outside the two side walls, and the second protection arm is located above the first protection arm.

9. The spring connector according to claim 1, wherein: At least one welding hole is provided on the plate-shaped base.

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