Side connection elastic sheet

Abstract

A side connection elastic sheet comprises a top plate, a base part which is formed by bending and extending downwards from the rear end of the top plate, an elastic contact arm which is formed by bending and extending reversely from one transverse end of the base part, a wing part which is formed by bending and extending forwards from the bottom side of the base part, and a weld leg, the top plate and the wing part are provided with a first pre-pressing hole and a second pre-pressing hole which are used for pre-pressing the pre-pressing end part, and the wing part comprises a supporting wing plate which is formed by bending forwards from the bottom side of the base part and a wing part main body which is formed by bending upwards from the supporting wing plate and then extending forwards; the wing part main body extends along the transverse direction and forms the second pre-pressing hole, and the bottom surface of the pre-pressing end part does not downwards exceed the bottom surface of the supporting wing plate. The side connection elastic sheet can reduce the occupied space of the printed circuit board and maintain the welding stability.

Description

Technical Field

[0001] This application relates to the field of electrical connectors, and more particularly to a side-mounted spring. Background Technology

[0002] Chinese Patent Application No. 201410072447.X discloses a side-pressed antenna spring, comprising a fixed end, a base extending upward from the front side of the fixed end, an elastic contact arm extending after being bent in the opposite direction from the left or right side of the base, and a tensioning portion formed between the elastic contact arm and the base. The elastic contact arm is formed by bending and extending from the base toward the fixed end, and is located above the fixed end. The fixed end has solder feet on its left and right sides, which are soldered to a printed circuit board. The aforementioned side-pressed antenna spring also has a welded portion formed by tearing on the fixed end, achieving welding stability through three-point welding. However, the solder feet of the fixed end are located on both longitudinal sides of the fixed end, undoubtedly increasing the length of the spring. Furthermore, to maintain the strength of the solder feet, the width of the fixed end also needs to be maintained at a certain width. The base is only connected to the fixed end through two bending structures. These bending structures will be subjected to considerable elastic force during spring pressing, potentially causing metal fatigue and affecting the contact force.

[0003] To address the aforementioned technical problems, the applicant's patent application No. 202520242070.1 discloses a side-mounted spring sheet. This spring sheet includes a top plate, a base extending downwards from the rear end of the top plate, an elastic contact arm extending in the opposite direction from one lateral end of the base, and solder feet. The solder feet include a pair of first solder feet extending downwards from both lateral ends on the front side of the top plate and a pair of second solder feet extending downwards from both lateral ends on the bottom side of the base. The first solder feet correspond to and cooperate with the first solder feet, which are located at both lateral ends of the side-mounted spring sheet and do not extend beyond the base in the lateral direction. A wing is formed by bending forward from the middle of the bottom side of the base. The top plate and the wing are respectively provided with first and second pre-pressure holes. Pre-pressure ends extend longitudinally from both ends of the free end of the support arm, extending into the first and second pre-pressure holes. The pre-pressure ends extend downwards beyond the second pre-pressure hole and interfere with the printed circuit board, requiring space on the printed circuit board to avoid the pre-pressure ends, resulting in space occupation and reduced design flexibility of the printed circuit board. Utility Model Content

[0004] Therefore, it is necessary to provide a side contact spring with a lower height that does not affect the space utilization of the printed circuit board.

[0005] To solve the above-mentioned technical problems, this application provides a side-mounted spring sheet, including a top plate, a base formed by bending downward from the rear end of the top plate, an elastic contact arm formed by bending backward from one lateral end of the base, a wing formed by bending forward from the bottom side of the base, and a welding foot. The elastic contact arm includes a tensioning portion formed by bending backward from one lateral end of the base, a horizontal portion extending horizontally from the tensioning portion in front of the base, an inclined portion extending obliquely forward from the horizontal portion and away from the tensioning portion, and a support arm formed by bending and extending from the inclined portion toward the base. The free ends of the support arm extend vertically to both sides to form pre-compression ends. The top plate and the wing are provided with a first pre-compression hole and a second pre-compression hole for pre-compression of the pre-compression ends. The wing includes a support wing plate formed by bending forward from the bottom side of the base, a wing body formed by bending upward from the support wing plate and then extending forward, the wing body extending laterally and forming the second pre-compression hole, and the bottom surface of the pre-compression end does not extend downward beyond the bottom surface of the support wing plate.

[0006] Preferably, after the wing body extends laterally, a second pre-compression hole is formed between the wing body and the base, and the bottom surface of the wing body is higher than the top surface of the supporting wing plate.

[0007] Preferably, the connection between the supporting wing plate and the wing body is provided with an upward bending portion so that the wing body is higher than the supporting wing plate, and when the wing body limits the pre-compression end, the bottom side of the pre-compression end is located above the bottom surface of the supporting wing plate.

[0008] Preferably, the weld foot includes a pair of first weld feet formed by bending downward from both ends of the front side of the top plate and a pair of second weld feet formed by bending downward from both ends of the bottom side of the base. The first weld feet and the second weld feet are correspondingly engaged. The weld feet are located at both ends of the side contact spring and do not extend beyond the base in the lateral direction.

[0009] Preferably, the first weld foot includes a first weld foot body formed by bending downward from the front side of the top plate, a first support plate formed by bending backward from the lower end of the first weld foot body, and a first welding end formed by bending downward from the first support plate; the second weld foot includes a second support plate formed by bending forward from the bottom side of the base, and a second welding end formed by bending downward from the second support plate.

[0010] Preferably, the first support plate, the second support plate, and the support wing plate are corresponding to each other and are on the same horizontal plane. The first support plate, the second support plate, and the support wing plate are simultaneously supported on a printed circuit board to provide support and balance. The first welding end and the second welding end are inserted side by side into the welding holes provided on the printed circuit board for welding and fixing.

[0011] Preferably, the first weld body of one of the weld feet extends beyond the front of the horizontal portion and confines the horizontal portion between the base and the horizontal portion.

[0012] Preferably, the first weld leg body of the first weld leg does not extend forward beyond the leading edge of the wing.

[0013] Preferably, the elastic contact arm further includes an extension section connecting the inclined portion and the support arm. The extension section is formed by bending and extending obliquely backward from the inclined portion and away from the tensioning portion. The support arm is formed by bending and extending obliquely backward from the extension section and close to the tensioning portion. The elastic contact arm also includes a contact portion formed at the bend between the inclined portion and the extension section.

[0014] Preferably, the end of the support arm is bent forward to form a warped support end, which slides against the front surface of the base.

[0015] This application's side-mounted spring clip designs the bottom surface of the wing body of the wing portion to be higher than the supporting wing plate, and provides a second pre-pressure hole on the inner side of the wing body, so that the pre-pressure end will not exceed the supporting wing plate to avoid the printed circuit board, thus eliminating the need to set an avoidance opening on the printed circuit board and reducing the utilization rate of the printed circuit board. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a perspective view of the side-mounted spring clip of this application;

[0018] Figure 2 This is a perspective view of the side-mounted spring clip from another angle in this application;

[0019] Figure 3 This is a front view of the side-mounted spring clip of this application;

[0020] Figure 4 For along Figure 3 The cross-sectional view shown by the dashed line AA.

[0021] Explanation of reference numerals in the attached figures

[0022] Top plate-10; Plate body-11; First pre-compression hole-111; First weld leg-12; First weld leg body-121; First support plate-122; First welding end-123; Base-20; Wing-21; Support wing plate-211; Wing body-212; Upward bending part-213; Second pre-compression hole-22; Second weld leg-23; Second support plate-231; Second welding end-232; Tensioning part-30; Elastic contact arm-40; Horizontal part-41; Inclined part-42; Contact part-43; Extension section-44; Support arm-45; Support end-451; Pre-compression end-452. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them.

[0024] This application is based on Figure 1 The X direction is the horizontal direction, the Y direction is the front direction (forward), and the Z direction is the top direction (vertical).

[0025] Please continue reading. Figures 1 to 4 As shown, the side contact spring of this application includes a top plate 10, a base 20 formed by bending downward from one side of the width of the top plate 10, an elastic contact arm 40 formed by bending backward from one longitudinal end of the base 20, a tensioning portion 30 formed between the elastic contact arm 40 and the base 20, and a welding foot formed by extending from the top plate 10 and / or the base 20 together.

[0026] The elastic contact arm 40 is formed by bending backward from one longitudinal end of the base 20 and extending obliquely away from the base 20. The elastic contact arm 40 is located below the top plate 10. The top plate 10 is perpendicular to the base 20.

[0027] The top plate 10 has a plate-like structure and includes a plate body 11 and a first pre-compression hole 111 penetrating the plate body 11 vertically. The lower end of the base 20 is bent forward to form a wing 21 parallel to the top plate 10. The wing 21 includes a supporting wing plate 211 bent forward from the base 20, an upwardly bent portion 213 bent upward from the supporting wing plate 211, and a wing body 212 extending forward from the upwardly bent portion 213. The bottom surface of the wing body 212 is higher than the top surface of the supporting wing plate 211. The wing body 212 extends laterally beyond the supporting wing plate 211, forming a second pre-compression hole 22 between the wing body 212 and the base 20. The first pre-compression hole 111 and the second pre-compression hole 22 correspond to each other, and the lateral length of the wing 21 is less than the lateral length of the top plate 10.

[0028] The elastic contact arm 40 includes a tensioning portion 30 formed by bending backward from one lateral end of the base 20, a horizontal portion 41 formed by extending horizontally from the tensioning portion 30, an inclined portion 42 formed by extending inclinedly from the horizontal portion 41 away from the base 20, an extension segment 44 formed by bending and extending from the top of the inclined portion 42 toward the base 20, a support arm 45 formed by bending from the extension segment 44 toward the tensioning portion 30 and extending to the surface of the base 20, and a contact portion 43 formed at the bend of the inclined portion 42 and the extension segment 44.

[0029] The width between the horizontal portion 41 and the base 20 is less than the longitudinal width of the wing 21. The inclined portion 42 bends forward at a point located on the lateral side of the wing 21, meaning their vertical projections do not overlap. The extension section 44 is formed by bending and extending obliquely backward from the top of the inclined portion 42 away from the tensioning portion 30. The support arm 45 is formed by bending from the extension section 44 toward the tensioning portion 30 and also extending obliquely backward. The extension section 44 effectively improves the elasticity of the support arm 45, preventing the surface of the support arm 45 from adhering to the surface of the base 21 and losing its elasticity. The free end of the support arm 45 bends in the opposite direction to form a support end 451, and the vertical sides of the free end of the support arm 45 extend to form pre-compression ends 452 that cooperate with the first pre-compression hole 111 and the second pre-compression hole 22.

[0030] A portion of the inclined portion 42, the contact portion 43, the extension 44, and a portion of the support arm 45 protrude in front of the wing 21 so that an object (not shown) can contact and press the elastic contact arm 40.

[0031] The weld foot includes a first weld foot 12 extending downward from the front end of the top plate 10 and a second weld foot 24 extending downward from the bottom side of the base 20.

[0032] The first weld foot 12 includes a first weld foot body 121 formed by bending downward from both ends of the front side of the top plate 10, a first support plate 122 formed by bending backward from the lower side of the first weld foot body 121, and a first welding end 123 formed by bending downward from the first support plate 122. There are two first weld feet 12: one located at the first end of the lateral direction on the side of the tensioning portion 30, and the other located at the second end of the lateral direction.

[0033] The second weld leg 23 includes a second support plate 231 formed by bending forward from the bottom side of the base 20 and a second weld end 232 formed by bending downward from the second support plate 231.

[0034] One of the first weld feet 121 extends beyond the front side of the horizontal portion 41 of the elastic contact arm 40 and limits the horizontal portion between the base 20 and the first weld foot 121. The front surface of the first weld foot 121 is flush with the front edge of the wing 21. One first weld foot 12 and one second weld foot 23 are paired to form one weld foot. In this application, a weld foot is provided at each of the two lateral ends of the side contact spring.

[0035] The first support plate 122 of the first solder foot 12, the second support plate 231 of the second solder foot 23, and the support wing plate 211 correspond to each other and are on the same horizontal plane. The first welding end 123 of the first solder foot 12 and the second welding end 232 of the second solder foot 23 are inserted into the same solder hole (not shown) of the printed circuit board. The first support plate 122, the second support plate 231, and the support wing plate 211 are jointly supported on the printed circuit board to maintain the stability of the side contact spring of this application.

[0036] The side-mounted spring sheet of this application is soldered to the printed circuit board in the vertical direction and fixed to the printed circuit board by solder feet at both ends in the horizontal direction. The solder feet do not extend beyond the horizontal ends of the base 20, which effectively reduces the horizontal length of the product. At the same time, by extending from the base 20 and the top plate 10 to form paired solder feet, the strength and stability of the solder feet are increased, and the stability of the welding is ensured.

[0037] In one embodiment, the bottom surface of the support wing plate 211 may also be higher than the bottom surfaces of the first support plate 122 and the second support plate 231, without the support wing plate 211 needing to be supported on the printed circuit board.

[0038] The bottom edge of the pre-pressed end 452 located on the lower side is higher than the bottom surface of the support wing plate 211, so that the pre-pressed end 452 will not interfere with the printed circuit board.

[0039] This application's side-mounted spring clip designs the bottom surface of the wing body 212 of the wing 21 to be higher than the supporting wing plate 211, and provides the second pre-pressure hole 22 on the inner side of the wing body 212, so that the pre-pressure end 452 will not exceed the supporting wing plate 211 to avoid the printed circuit board, thus eliminating the need to set an avoidance opening on the printed circuit board and reducing the utilization rate of the printed circuit board.

[0040] 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.

[0041] 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 side-mounted spring clip, comprising a top plate, a base extending downward from the rear end of the top plate, an elastic contact arm extending in the opposite direction from one lateral end of the base, a wing extending forward from the bottom side of the base, and a welding foot, wherein the elastic contact arm comprises a tensioning portion extending in the opposite direction from one lateral end of the base, a horizontal portion extending horizontally from the tensioning portion in front of the base, an inclined portion extending obliquely forward from the horizontal portion and away from the tensioning portion, and a support arm extending from the inclined portion toward the base, wherein the free ends of the support arm extend vertically to both sides to form pre-compression ends, and the top plate and the wing are provided with a first pre-compression hole and a second pre-compression hole for pre-compression of the pre-compression ends, characterized in that... The wing includes a support wing plate formed by bending forward from the bottom side of the base, and a wing body formed by bending upward from the support wing plate and then extending forward. The wing body extends laterally and forms the second pre-compression hole. The bottom surface of the pre-compression end does not extend downward beyond the bottom surface of the support wing plate.

2. The side tabbed flexure of claim 1, wherein, After the wing body extends laterally, a second pre-compression hole is formed between the wing body and the base, and the bottom surface of the wing body is higher than the top surface of the supporting wing plate.

3. The side tabbed flexure of claim 2, wherein, The connection between the support wing plate and the wing body is provided with an upward bending portion so that the wing body is higher than the support wing plate, and when the wing body limits the pre-compression end, the bottom side of the pre-compression end is located above the bottom surface of the support wing plate.

4. The side tabbed flexure of claim 3, wherein, The weld foot includes a pair of first weld feet that bend downward from the two transverse ends on the front side of the top plate and a pair of second weld feet that bend downward from the two transverse ends on the bottom side of the base. The first weld feet and the second weld feet are correspondingly engaged. The weld feet are located at the two transverse ends of the side contact spring and do not extend beyond the base in the transverse direction.

5. The side tabbed flexure of claim 4, wherein, The first weld foot includes a first weld foot body formed by bending downward from the front side of the top plate, a first support plate formed by bending backward from the lower end of the first weld foot body, and a first welding end formed by bending downward from the first support plate. The second weld foot includes a second support plate formed by bending forward from the bottom side of the base, and a second welding end formed by bending downward from the second support plate.

6. The side tabbed flexure of claim 5, wherein, The first support plate, the second support plate, and the support wing plate are corresponding to each other and are on the same horizontal plane. The first support plate, the second support plate, and the support wing plate are supported on a printed circuit board to provide support and balance. The first welding end and the second welding end are inserted side by side into the welding holes provided on the printed circuit board for welding and fixing.

7. The side tab as defined in claim 6, wherein, The first weld body of one of the weld feet extends beyond the front of the horizontal portion and confines the horizontal portion between the base and the horizontal portion.

8. The side tabbed flexure of claim 7, wherein, The first weld leg body of the first weld leg does not extend forward beyond the front edge of the wing.

9. The side tabbed flexure of claim 8, wherein, The elastic contact arm further includes an extension section connecting the inclined portion and the support arm. The extension section is formed by bending and extending obliquely backward from the inclined portion and away from the tensioning portion. The support arm is formed by bending and extending obliquely backward from the extension section and close to the tensioning portion. The elastic contact arm also includes a contact portion formed at the bend between the inclined portion and the extension section.

10. The side tabbed flexure of claim 1, wherein, The end of the support arm is bent forward to form a warped support end, which slides against the front surface of the base.

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