A positive pressure bullet

Abstract

The utility model discloses a kind of positive pressure shell, including plate base, the two side edges of plate base are respectively bent and extend to form the two side walls of opposite arrangement, the side edge of one of the two side walls is bent and extends to form connecting portion towards another side wall, the connecting portion is bent to form overhanging spring arm portion in one end downward, the spring arm portion extends to the elastic portion in the open space formed between the two side walls. The shell connector described in the application meets the miniaturization of shell structure, adopts the design that first elastic arm reverse bending is connected with spring arm portion and hangs above support structure, can increase the life of shell, enhance the elasticity of shell, improve the performance of shell, improve the stability of shell connection.

Description

Technical Field

[0001] This utility model relates to the field of spring technology, and in particular to a positive pressure spring. Background Technology

[0002] Currently, both spring clips and wire clamps are widely used in the field of electronic communication equipment. Spring clips are used to transmit antenna signals or signals between electronic components and the motherboard, as well as to contact the mid-frame or back cover. Due to the limited space on mobile phone motherboards, and with the increasing miniaturization requirements of products, the size requirements for components are also getting smaller, and there are further requirements for the elasticity and lifespan of the product itself. Therefore, it is necessary to design a spring clip to solve the problems existing in the current technology, which can not only meet the requirements of miniaturization of the spring clip structure, but also increase the service life of the spring clip, enhance the elasticity of the spring clip, and improve the stability of the spring clip connection. Utility Model Content

[0003] This utility model provides a positive pressure spring sheet, which, while meeting the requirements of miniaturization of the spring sheet structure, adopts a design in which the first elastic arm is bent in the opposite direction and connected to the elastic arm part and suspended above the support structure, enabling the spring sheet to meet the requirements of long life, high elasticity and high performance.

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

[0005] A positive pressure spring is provided, including a plate-shaped base, the two sides of the plate-shaped base are bent and extended to form opposing side walls, one side edge of one side wall is bent toward the other side wall and extended to form a connecting portion, one end of the connecting portion is bent downward to form a suspended elastic arm portion, and the elastic arm portion extends into an elastic portion into an open space formed between the two side walls.

[0006] Preferably, the elastic part includes a first elastic arm, a contact part, a second elastic arm, and an abutment part connected in sequence, wherein the first elastic arm is bent in the opposite direction and connected to the elastic arm part.

[0007] Preferably, one end of the plate-shaped base extends outward to form a support structure, which is used to abut against the elastic part when pressed down.

[0008] Preferably, the support structure includes at least two support parts, which are equally spaced apart.

[0009] Preferably, the spring arm has a U-shaped structure and is suspended above the support structure.

[0010] Preferably, the elastic arm is provided with a first stress relief groove, the first elastic arm is provided with a second stress relief groove that communicates with the first stress relief groove, the second elastic arm is provided with a third stress relief groove, the contact part is a protruding structure, and the abutting part abuts against the plate-shaped base.

[0011] Preferably, the plate-shaped base is arranged parallel to the connecting portion, the lower surface of the plate-shaped base serves as the welding surface, and the upper surface of the connecting portion serves as the absorption surface.

[0012] Preferably, at least one sidewall edge of the two sidewalls bends inward in the direction close to the elastic portion to form a protective portion.

[0013] Preferably, the positive pressure spring is an integral structure formed by bending a metal sheet.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a positive pressure spring sheet, which, while satisfying the miniaturization of the spring sheet structure, adopts a design in which the first elastic arm is bent in the opposite direction and connected to the spring arm part and suspended above the support structure, thereby increasing the life of the spring sheet, enhancing the elasticity of the spring sheet, improving the performance of the spring sheet, and improving the stability of the spring sheet connection. Attached Figure Description

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

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

[0017] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0018] The reference numerals in the accompanying drawings include:

[0019] Positive pressure spring-1, plate-shaped base-20, side wall-30, connecting part-40, spring arm part-50, first stress relief groove-501, elastic part-60, first elastic arm-601, second stress relief groove-6011, contact part-602, second elastic arm-603, third stress relief groove-6031, abutting part-604, support structure-70, support part-701, protective part-80. Detailed Implementation

[0020] This application provides a positive pressure spring sheet. While achieving miniaturization of the spring sheet structure, it adopts a design in which the first elastic arm is bent in the opposite direction and connected to the elastic arm portion and suspended above the support portion. This design can increase the lifespan of the spring sheet, enhance its elasticity, improve its performance, and increase the stability of the spring sheet connection.

[0021] 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.

[0022] like Figures 1 to 3 The following is an embodiment of this application:

[0023] A positive pressure spring 1 includes a plate-shaped base 20. The two sides of the plate-shaped base 20 are bent and extended to form opposing side walls 30. The side edge of one side wall 30 is bent toward the other side wall 30 and extended to form a connecting portion 40. One end of the connecting portion 40 is bent downward to form a suspended spring arm portion 50. The spring arm portion 50 extends into the open space formed between the two side walls 30 to form an elastic portion 60. In this embodiment, the design of the spring arm portion 50 effectively lengthens the lever arm of the spring. A longer lever arm can make the stress distribution of the spring more uniform during operation and reduce the phenomenon of local stress concentration. This helps to reduce the risk of damage to the spring and thus extend its service life.

[0024] In this embodiment, the elastic part 60 includes a first elastic arm 601, a contact part 602, a second elastic arm 603, and an abutment part 604 connected in sequence. The first elastic arm 601 is bent in the opposite direction and connected to the elastic arm part 50. After the length of the elastic arm is indirectly increased, the elastic potential energy of the elastic piece will accumulate more under the same degree of deformation, thereby providing a greater elastic recovery force when recovering.

[0025] Furthermore, one end of the plate-shaped base 20 extends outward to form a support structure 70, which is used to abut against the elastic part 60 when pressed down. In this embodiment, one end of the plate-shaped base 20 extends outward to form two support parts 701, which are equally spaced. The spring arm 50 has a U-shaped structure and is suspended above the support structure 70. When the spring is over-pressed during operation, the support structure 70 supports and protects the upper spring arm 50. The suspended design of the spring arm 50 can avoid the risk of being soldered by solder during SMT soldering operations.

[0026] Furthermore, the spring arm 50 is provided with a first stress relief groove 501, the first elastic arm 601 is provided with a second stress relief groove 6011 connected to the first stress relief groove 501, and the second elastic arm 603 is provided with a third stress relief groove 6031. The design of the stress relief groove can optimize the stress distribution of the spring piece, making the stress of the spring piece more uniform when under force, reducing local stress concentration, reducing the yield of the elastic arm, thereby extending the life of the spring piece, and helping to improve the elastic performance of the spring piece, so that it can withstand greater deformation without damage under the same load, and can also better restore its original shape; the contact part 602 is a protruding structure, which is used to improve the stability of the contact between the contact part 602 and the component, and improve the stability of the spring piece signal transmission. The abutting part 604 abuts against the plate-shaped base 20. When the spring piece is in working state, the abutting part 604 and the plate-shaped base 20 establish a stable connection relationship, thereby improving product performance.

[0027] In this embodiment, the plate-shaped base 20 is arranged parallel to the connecting part 40. The lower surface of the plate-shaped base 20 serves as the welding surface for SMT soldering, and the upper surface of the connecting part 40 serves as the absorption surface for SMT soldering. The two sidewalls 30 bend inward at their edges in the direction close to the elastic part 60 to form two protective parts 80. The protective parts 80 effectively protect the spring sheet and prevent it from deforming. In addition, the positive pressure spring sheet is an integral structure formed by bending a metal sheet. The spring sheet formed by bending a metal sheet can maintain good elasticity.

[0028] In summary, the positive pressure spring provided by this utility model, while satisfying the miniaturization of the spring structure, adopts a design in which the first elastic arm is bent in the opposite direction and connected to the spring arm part and suspended above the support part, avoiding the risk of the lever arm being soldered during SMT soldering. The support part plays a supporting and protective role for the spring arm part. In addition, the design of the elastic part being bent in the opposite direction indirectly increases the length of the lever arm, extending the life of the spring while improving the performance of the spring and improving the stability of the spring connection.

[0029] 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.

[0030] 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 positive pressure spring, characterized in that, It includes a plate-shaped base, the two sides of the plate-shaped base are bent and extended to form opposing side walls, one side edge of one side wall is bent toward the other side wall and extended to form a connecting part, one end of the connecting part is bent downward to form a suspended elastic arm, and the elastic arm extends into the open space formed between the two side walls to form an elastic part.

2. The positive pressure 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 an abutment part connected in sequence, wherein the first elastic arm is bent in the opposite direction and connected to the elastic arm part.

3. A positive pressure spring sheet according to claim 2, characterized in that, One end of the plate-shaped base extends outward to form a support structure, which is used to abut against the elastic part when pressed down.

4. A positive pressure spring sheet according to claim 3, characterized in that, The support structure includes at least two support parts, which are arranged at equal intervals.

5. A positive pressure spring sheet according to claim 4, characterized in that, The spring arm has a U-shaped structure and is suspended above the support structure.

6. A positive pressure spring sheet according to claim 5, characterized in that, The elastic arm is provided with a first stress relief groove, the first elastic arm is provided with a second stress relief groove that communicates with the first stress relief groove, the second elastic arm is provided with a third stress relief groove, the contact part is a protruding structure, and the abutting part abuts against the plate-shaped base.

7. A positive pressure spring sheet according to claim 1, characterized in that, The plate-shaped base is arranged parallel to the connecting part, with the lower surface of the plate-shaped base serving as the welding surface and the upper surface of the connecting part serving as the absorption surface.

8. A positive pressure spring sheet according to claim 1, characterized in that, The two sidewalls extend inward at least one sidewall edge in the direction close to the elastic part to form a protective part.

9. A positive pressure spring sheet according to claim 1, characterized in that, The positive pressure spring is an integral structure formed by bending a metal sheet.

Images