A sheet connector

Abstract

A kind of shell fragment connector, including substrate, the tensioning portion formed by being reversely bent from the longitudinal one end of the substrate, the elastic arm formed by being extended to the upper side from the tensioning portion and towards the end away from the tensioning portion, the support arm formed by being bent towards the substrate direction from the end of the elastic arm and inclined extension towards the direction close to the tensioning portion, the pre-pressing portion is formed in the lateral two sides of the support arm, the wing portion is formed in the lateral two sides of the substrate by being bent and extended upwards, the wing portion includes the wing portion main body formed by being bent and extended upwards from the lateral two sides of the substrate and the pre-pressing piece body formed by being bent inwards from the top end of the wing portion portion main body and being crimped above the pre-pressing portion, the wing portion main body is provided with the avoiding space along the length direction of the substrate corresponding to the pre-pressing portion, the pre-pressing portion moves in the range where the avoiding space is located without interference with the inner wall surface of the wing portion main body.The shell fragment connector of the utility model can further reduce product size.

Description

Technical Field

[0001] This utility model relates to the field of electrical connectors, and in particular to a spring connector. Background Technology

[0002] Spring connectors are widely used in electronic devices for connecting antenna signals or enabling single-channel conduction of components. Spring connectors are typically mounted on printed circuit boards (PCBs), transmitting signals to the PCB through contact with the mating object via an elastic arm. Due to limited internal space in electronic devices, spring connectors need to be as small as possible. For example, patent application CN201721380383.5 discloses an ultra-thin spring connector, comprising a plate-shaped base, a tensioning portion formed by bending backwards from one end of the plate-shaped base, an elastic arm extending obliquely upwards from the tensioning portion, a contact portion formed at the upper end of the elastic arm, a support arm formed by bending backwards from the contact portion and extending obliquely towards the plate-shaped base, and protective wings formed by bending upwards from both sides of the plate-shaped base on both sides of the support arm. Limiting holes are formed along the length of the protective wings, and pre-compression portions protrude from both sides of the support arm and are positioned within the limiting holes. Due to the requirement for a certain strength in the upper part of the limiting hole, it cannot be too narrow. The height of the protective wing of this structure is limited to 0.35mm, and it is impossible to further reduce the height.

[0003] Patent application CN202422479475.5 discloses a side-mounted spring clip, including a substrate, a tensioning portion formed by bending backward from the rear end of the substrate, an elastic arm extending obliquely forward and upward from the tensioning portion, a support arm formed by bending and extending from the end of the elastic arm toward the substrate, a contact portion formed at the top of the elastic arm, and wings formed by bending upward from both sides of the substrate. The top edge of the wing is bent inward to form a pre-compression flap, and the support arm has pre-compression protrusions on both sides of the lateral side, located below the pre-compression flaps. This structure can effectively reduce the product height; the height of the wing can be reduced to 0.28mm. However, the outer edge of the pre-compression protrusion needs to maintain a certain distance from the inner wall of the wing to avoid interference during movement, which will increase the width of the product. Utility Model Content

[0004] Based on this, the present invention provides a spring connector that can further reduce the size of the product.

[0005] To solve the above-mentioned technical problems, this application provides a spring connector, including a substrate, a tensioning portion formed by bending backward from one longitudinal end of the substrate, an elastic arm formed by extending obliquely upward from the tensioning portion and toward the end away from the tensioning portion, and a support arm formed by bending from the end of the elastic arm toward the substrate and extending obliquely toward the tensioning portion. The support arm has pre-pressed portions protruding from both lateral sides. The substrate has wings formed by bending upward from both lateral sides. The wings include wing bodies formed by bending upward from both sides of the substrate and a pre-pressed sheet formed by bending inward from the top of the wing body and pressing it onto the pre-pressed portion. The wing bodies have clearance spaces along the length of the substrate corresponding to the pre-pressed portion. The pre-pressed portion can move within the clearance space without interfering with the inner wall surface of the wing body.

[0006] Preferably, the lateral outer edge of the pre-compressed portion is located between the lateral inner wall surface and the outer surface of the wing body.

[0007] Preferably, the upper end of the clearance space is above the lower surface of the pre-compressed sheet, and the cut of the clearance space is higher than the lower surface of the pre-compressed sheet and lower than the upper surface of the pre-compressed sheet.

[0008] Preferably, the pre-compressed part abuts against the lower side of the pre-compressed sheet body when not in operation, and when in operation, the pre-compressed part moves toward the tensioning part within the clearance space.

[0009] Preferably, the elastic arm includes a first elastic arm extending from the tensioning portion toward a direction away from the tensioning portion at a first inclined angle, a second elastic arm extending obliquely upward from the first elastic arm at a second inclined angle, and a bent portion formed by bending in the opposite direction from the end of the second elastic arm, wherein a contact portion with a raised rib is formed on the bent portion.

[0010] Preferably, the first tilt angle is smaller than the second tilt angle, the first tilt angle is greater than or equal to 0 degrees and less than or equal to 5 degrees, and the second tilt angle is greater than 20 degrees and less than 50 degrees.

[0011] Preferably, the support arm includes a support arm body extending downward from the bending portion and toward the tensioning portion and located below the second elastic arm, and a support end formed at the free end of the support arm body. The bottom surface of the support end is smooth to abut against the surface of the substrate and slide. The pre-pressed portion is formed by protruding from both lateral sides of the support arm body.

[0012] Preferably, the support arm includes an arcuate segment extending obliquely from the bent portion toward the tensioning portion, a straight segment extending in a straight line toward the substrate after the arcuate segment is bent toward the elastic arm, and an indentation formed between the arcuate segment and the straight segment.

[0013] Preferably, the arc-shaped segment extends in a manner where the opening gradually increases, with the opening being larger closer to the concave portion and smaller at the concave portion. The vertical distance between the arc-shaped segment and the second elastic arm is greater than the vertical distance between the concave portion and the second elastic arm.

[0014] Preferably, the length of the arc segment is less than the length of the straight segment.

[0015] The spring connector of this application bends the wing body inward to form a pre-compression plate body, and then opens a clearance space in the wing body to avoid the pre-compression part, so that the pre-compression part does not interfere with the wing body, making full use of the plate thickness space, reducing the product height while ensuring that the product width is not increased. Attached Figure Description

[0016] Figure 1 This is a perspective view of the spring connector of this application.

[0017] Figure 2 This is a side view of the spring connector of this application.

[0018] Figure 3 For along Figure 2 The cross-sectional view shown by the dashed line AA.

[0019] Among them: substrate-10; tensioning part-20; elastic arm-30; first elastic arm-31; second elastic arm-32; bending part-33; contact part-34; support arm-40; support arm body-41; arc segment-411; straight segment-412; concave part-413; support end-42; pre-compressed part-43; wing-50; wing body-51; pre-compressed sheet body-52; clearance space-53. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0023] This application is based on Figure 1 The X direction is the horizontal direction, the Y direction is the vertical direction, and the Z direction is the vertical direction.

[0024] Please refer to Figures 1 to 3 The spring connector of this application includes a substrate 10, a tensioning portion 20 formed by bending backward from one longitudinal end of the substrate 10, an elastic arm 30 extending from the tensioning portion 20 and located above the substrate 10, a support arm 40 formed by bending and extending from the end of the elastic arm 30 toward the substrate 10, and a wing portion 50 formed by bending and extending upward from both lateral sides of the substrate 10.

[0025] The wing 50 includes a wing body 51 formed by bending upward from one end away from the tensioning part 20 on both sides of the substrate 10, a pre-pressed sheet 52 formed by bending inward from the top of the wing body 51, and a clearance space 53 formed in the middle of the wing body 51 and extending along the length direction. The upper edge of the clearance space 53 is located on the bottom surface 521 of the pre-pressed sheet 52, and a portion of the thickness of the pre-pressed sheet 52 is removed from the upper part of the clearance space 53. The clearance space 53 extends a certain distance along the length direction of the substrate 10. The distance between the upper surface of the pre-pressed sheet 52 and the bottom surface of the substrate 10 can be 0.28 mm.

[0026] The elastic arm 30 includes a first elastic arm 31 extending from the tensioning portion 20 at a first inclined angle above the substrate 10, a second elastic arm 32 extending obliquely upward from the first elastic arm 31 at a second inclined angle away from the tensioning portion 20, and a bent portion 33 formed by bending the second elastic arm 32 toward the substrate 10. A contact portion 34 with raised ribs is stamped on the bent portion 33. The first inclined angle is greater than or equal to 0 degrees and less than or equal to 5 degrees, and the second inclined angle is greater than 20 degrees and less than 50 degrees. The upper surface of the first elastic arm 31 is relatively flat for absorbing and moving the spring sheet product. The upper end face of the wing portion 50 does not extend beyond the upper surface of the first elastic arm 31.

[0027] The support arm 40 includes a support arm body 41 extending obliquely downward from the bending portion 33 and toward the tensioning portion 20, a support end portion 42 formed at the end of the support arm body 41, and a pre-compressed portion 43 protruding from both lateral sides of the support arm body 41. The pre-compressed portion 43 is located below the pre-compressed sheet 52 and is limited by the pre-compressed sheet 52. The lateral outer edge of the pre-compressed portion 43 extends beyond the inner wall surface of the wing body 51 and into the clearance space 53, but the lateral outer edge of the pre-compressed portion 43 does not extend outward beyond the outer surface of the wing body 51.

[0028] In the non-working state, the pre-compressed portion 43 is confined below the pre-compressed sheet 52. Specifically, the pre-compressed portion 43 is pressed by the pre-compressed sheet 52 of the wing 50, keeping the elastic arm 30 at a stable height. During operation, the connecting object (not shown) presses down onto the contact portion 34, causing the elastic arm 30 to elastically deform. The supporting end 42 of the supporting arm 40 abuts against the surface of the substrate 10 and moves towards the tensioning portion 20, while the pre-compressed portion 43 moves within the length range of the clearance space 53, without interfering with the inner wall surface of the wing body 51. Thus, this application uses an inward bending of the wing body 51 to form the pre-compressed sheet 52, and then creates a clearance space 53 in the wing body 51 to avoid the pre-compressed portion 43, preventing interference between the pre-compressed portion 43 and the wing body 51. This fully utilizes the thickness of the sheet material, reducing the product height while ensuring no increase in product width.

[0029] The support arm 41 includes an arcuate segment 411 extending obliquely from the bending portion 33 toward the tensioning portion 20, a straight segment 412 extending from the arcuate segment 411 toward the elastic arm 30 and then straight toward the substrate 10, and a recessed portion 413 formed between the arcuate segment 411 and the straight segment 412. The arcuate segment 411 extends with a gradually increasing opening, the opening being larger closer to the recessed portion 413, and the opening immediately decreasing at the location of the recessed portion 413. The vertical distance between the arcuate segment 411 and the second elastic arm 32 is greater than the vertical distance between the recessed portion 413 and the second elastic arm 32. The length of the arcuate segment 411 is less than the length of the straight segment 412. This design allows for a larger tilt angle of the straight segment 412. When the object being connected presses down on the contact part 34, causing the elastic arm 32 and support arm 40 to deform elastically, the downward pressure height is increased, preventing the straight segment 412 from easily flattening onto the surface of the substrate 10 and causing lever arm failure.

[0030] The spring connector of this application is mounted on a printed circuit board (not shown) and fixed to the surface of the printed circuit board by soldering the bottom surface of the substrate 10.

[0031] The spring connector of this application bends the wing body 51 inward to form a pre-compression plate 52, and then opens a clearance space 53 in the wing body 51 to avoid the pre-compression part 43, so that the pre-compression part 43 does not interfere with the wing body 51, making full use of the plate thickness space, reducing the product height while ensuring that the product width is not increased.

[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 above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model 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 spring connector, comprising a substrate, a tensioning portion formed by bending backwards from one longitudinal end of the substrate, an elastic arm extending obliquely upwards from the tensioning portion and toward an end away from the tensioning portion, and a support arm formed by bending from the end of the elastic arm toward the substrate and extending obliquely toward the tensioning portion, wherein the support arm has pre-pressed portions protruding from both lateral sides, and the substrate has wings formed by bending upwards from both lateral sides, each wing comprising a wing body formed by bending upwards from both sides of the substrate and a pre-pressed sheet body formed by bending inwards from the top of the wing body and pressing against the pre-pressed portion, characterized in that... The wing body has a clearance space along the length of the substrate corresponding to the pre-compressed part. The pre-compressed part can move within the clearance space without interfering with the inner wall surface of the wing body.

2. The spring connector as described in claim 1, characterized in that, The lateral outer edge of the pre-compressed part is located between the lateral inner wall surface and the outer surface of the wing body.

3. The spring connector as described in claim 2, characterized in that, The upper end of the clearance space is above the lower surface of the pre-compressed sheet, and the cut of the clearance space is higher than the lower surface of the pre-compressed sheet and lower than the upper surface of the pre-compressed sheet.

4. The spring connector as described in claim 3, characterized in that, When the pre-compressed part is not in operation, it abuts against the lower side of the pre-compressed sheet body. When in operation, the pre-compressed part moves toward the tensioning part within the clearance space.

5. The spring connector as described in claim 4, characterized in that, The elastic arm includes a first elastic arm extending from the tensioning portion toward a direction away from the tensioning portion at a first inclined angle, a second elastic arm extending obliquely upward from the first elastic arm at a second inclined angle, and a bent portion formed by bending in the opposite direction from the end of the second elastic arm. The bent portion has a contact portion with a raised rib.

6. The spring connector as described in claim 5, characterized in that, The first tilt angle is less than the second tilt angle, the first tilt angle is greater than or equal to 0 degrees and less than or equal to 5 degrees, and the second tilt angle is greater than 20 degrees and less than 50 degrees.

7. The spring connector as described in claim 5, characterized in that, The support arm includes a support arm body extending downward from the bending portion and toward the tensioning portion below the second elastic arm, and a support end formed at the free end of the support arm body. The bottom surface of the support end is smooth to abut against the surface of the substrate and slide. The pre-pressed portion is formed by protruding from both lateral sides of the support arm body.

8. The spring connector as described in claim 7, characterized in that, The support arm includes an arc-shaped segment extending obliquely from the bending portion toward the tensioning portion, a straight segment extending in a straight line toward the substrate after the arc-shaped segment is bent toward the elastic arm, and an indentation formed between the arc-shaped segment and the straight segment.

9. The spring connector as described in claim 8, characterized in that, The arc-shaped segment extends with a gradually increasing opening, the opening being larger closer to the concave portion and smaller at the concave portion. The vertical distance between the arc-shaped segment and the second elastic arm is greater than the vertical distance between the concave portion and the second elastic arm.

10. The spring connector as described in claim 9, characterized in that, The length of the arc segment is less than the length of the straight segment.

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