Side connection elastic sheet

Abstract

A side connection elastic piece comprises a substrate, a tensioning part formed by reversely bending from the rear end of the substrate, an elastic arm formed by obliquely extending from the tensioning part to the front upper portion, a contact part formed at the top end of the elastic arm and wing parts formed by upwards bending from the two transverse sides of the substrate. The front end and the rear end of one wing part are bent towards the transverse outer side to form welding feet, and the welding feet do not exceed the front end face and the rear end face of the substrate. The side connection elastic sheet is small in occupied space.

Description

Technical Field

[0001] The present application relates to the field of electrical connectors, and in particular to a side-connected spring. Background Art

[0002] Shrapnel is widely used in various electronic devices, connecting simple components to circuit boards for power, signals, or grounding. Most electronic devices are equipped with a shrapnel, which typically consists of a base plate soldered to the circuit board, a tensioning portion formed by bending backward from one end of the base plate, an elastic arm extending diagonally upward from the tensioning portion, a support arm bent backward from the end of the elastic arm and extending toward the base plate, and wings bent upward from both lateral sides of the base plate. The wings protect the elastic arms, allowing the connection object to be connected to the printed circuit board through the elastic arms, achieving electrical signal connection and transmitting electrical signals.

[0003] However, all parts of the above-mentioned spring clip are located above one side of the printed circuit board. In certain environments, the contact direction of the object is not on the front or back of the printed circuit board, but parallel to the printed circuit board and contacts the spring clip at the edge of the printed circuit board. Patent No. 202223432313.3 of the People's Republic of China discloses a side-connected spring clip. Compared with the ordinary plate-type spring clip, the difference between the side-connected spring clip and the ordinary plate-type spring clip is that the front and rear ends of the two wings are extended and bent toward one side to form a welding foot, so that the welding foot and the spring clip body are in a mutually perpendicular state. This structure has welding problems, but there is a problem that the spring clip is too long in the flat state, which increases the space occupied by the printed circuit board. It is not suitable for electronic equipment with high space requirements. It is necessary to design a side-connected spring clip that occupies less space. Utility Model Content

[0004] In view of this, it is necessary to provide a side-connected elastic sheet that occupies a small space.

[0005] In order to solve the above technical problems, the present application provides a side-connected spring piece, including a substrate, a tensioning portion formed by reverse bending from the rear end of the substrate, an elastic arm extending obliquely forward and upward from the tensioning portion, a contact portion formed at the top of the elastic arm, and a wing portion formed by bending upward from the lateral sides of the substrate, wherein the front and rear ends of one wing portion are bent toward the lateral outside to form a welding foot, and the welding foot does not exceed the front and rear end surfaces of the substrate.

[0006] Preferably, the wing also includes a wing body and a pre-pressed fold formed by bending inward from the top of the wing body, and the wing body between the two solder feet is welded to the printed circuit board as a welding surface, and the solder feet are welded in the welding holes on the printed circuit board.

[0007] Preferably, the wing body of the other wing serves as a suction surface for absorbing the side elastic sheet.

[0008] Preferably, the elastic arm includes a connecting portion extending horizontally from the tensioning portion, a recessed portion extending downward and then upward from the connecting portion, an inclined arm extending obliquely forward and upward from the recessed portion, and a contact portion formed at the top end of the inclined arm.

[0009] Preferably, the welding feet at the front end of the wing do not exceed the front end surface of the substrate, the welding feet at the rear end of the wing are located laterally outside the recessed portion, and the tightening portion and the connecting portion are not covered by the wing and are exposed to the outside.

[0010] Preferably, the upper surface of the connecting portion is flush with the upper end surface of the wing body, and the concave portion is sunken to the lower side of the top surface of the wing.

[0011] Preferably, the side-connected spring piece also includes a support arm formed by bending in the opposite direction from the top of the inclined arm and extending toward the substrate, and the support arm includes a support arm body, a support end portion formed by bending from the end of the support arm body, and a pre-pressed protrusion formed by protruding from the lateral sides of the support arm body.

[0012] Preferably, the pre-pressed fold is located above the pre-pressed convex portion to press the pre-pressed convex portion.

[0013] The side spring clip of the present application is fixed to the printed circuit board by bending outward at the front and rear ends of one of the wings to form a pair of solder legs. This can shorten the front and rear length of the wing as much as possible, and the main body of the wing on the other side can be used as a suction surface. This can significantly reduce the overall length of the side spring clip and reduce the space occupied by the printed circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 A three-dimensional diagram of the side-connected spring plate of this application;

[0016] Figure 2 This is a three-dimensional view of the side-connected spring plate of this application from another angle;

[0017] Figure 3 For the Figure 2 A cross-sectional view taken along the dashed line AA is shown.

[0018] Description of Reference Numerals

[0019] Side spring clip-10; base plate-11; tensioning portion-12; elastic arm-13; connecting portion-131; recessed portion-132; inclined arm-133; contact portion-134; support arm-14; support arm body-141; support end portion-142; pre-stressed protrusion-143; wing-15; wing body-151; pre-stressed fold-152; welding foot-153. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions and advantages of this application more clear, the technical solutions of this application will be described clearly and completely below in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of this application, not all of them.

[0021] This application is based on Figure 1 The X direction is the front of the front-back direction, the Y direction is the lateral direction, and the Z direction is the upward vertical direction.

[0022] See also Figures 1 to 3 As shown, the side-connected spring clip 10 of the present application includes a substrate 11, a tensioning portion 12 formed by reverse bending from the rear end of the substrate 11, an elastic arm 13 extending from the tensioning portion 12, a support arm 14 formed by bending from the top end of the elastic arm 13 toward the substrate 11, wings 15 formed by bending upward from the lateral sides of the substrate 11, and a welding foot 153 formed by bending from the longitudinal ends of one of the wings 15.

[0023] The tensioning portion 12 is an arc-shaped structure formed by reverse bending from the rear end of the base plate 11. The base plate 11 is a flat plate. The elastic arm 13 includes a connecting portion 131 extending forward from the top of the tensioning portion 12, a recessed portion 132 extending downward and then upward from the connecting portion 131, an inclined arm 133 extending obliquely forward and upward from the recessed portion 132, and a contact portion 134 formed at the top of the inclined arm 133. The contact portion 134 is formed by stamping a rib upward from the inclined arm 133.

[0024] The support arm 14 includes a support arm body 141 formed by bending backward from the contact portion 134 and extending toward the substrate 11, a support end portion 142 formed by bending backward from the end of the support arm body 141, and a pre-pressed protrusion 143 formed by extending outward from both sides of the support arm body 141.

[0025] The wings 15 include a wing body 151 that is bent upward from both sides of the base plate 11, and a pre-pressed flap 152 that is bent inward from the top of the wing body 151 and pressed against the pre-pressed protrusion 143. The front and rear ends of one wing 15 are bent outward to form welding feet 153.

[0026] The connecting portion 131 extends horizontally, with its upper surface flush with the top of the wing 15. The lower recess 132 is located between the two wings 15, that is, it is sunken below the top surface of the wing 15. The inclined arm 133 extends obliquely forward and upward. When the elastic arm 13 is pressed downward, the supporting end 142 contacts the surface of the base plate 11 and slides backward. The tensioning portion 12 provides the primary deformation force, while the junction between the lower recess 132 and the connecting portion 131 provides a supplementary deformation force.

[0027] The front end of the wing 15 does not extend beyond the front edge of the substrate 11, and the rear end of the wing 15 is located within the recessed portion 132. The tensioning portion 12 and the connecting portion 131 are not obstructed by the wing 15 in the transverse direction and are exposed to the outside world. The solder legs 153 are formed by bending the front and rear ends of one of the wings 15 outward. These solder legs 153 are inserted into solder holes (not shown) provided in the printed circuit board and secured by soldering. The wing body 151 between the two solder legs 153 serves as the soldering surface for soldering to the printed circuit board. The surface of the other wing body 151 serves as the suction surface of the suction cup.

[0028] The side spring clip 10 of the present application is fixed to the printed circuit board by bending outward at the front and rear ends of one of the wings 15 to form a pair of solder legs 153. This can minimize the front-to-back length of the wing 15, while the wing body 151 on the other side can serve as a suction surface. This can significantly reduce the overall length of the side spring clip 10 and reduce the space occupied by the printed circuit board.

[0029] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, 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 above embodiments merely represent preferred implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. 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 side-connected spring, comprising a base plate, a tensioning portion formed by reverse bending from a rear end of the base plate, an elastic arm extending obliquely forward and upward from the tensioning portion, a contact portion formed at the top end of the elastic arm, and wing portions formed by upward bending from both lateral sides of the base plate, characterized in that: The front and rear ends of one of the wings are bent outwards in the transverse direction to form welding feet, and the welding feet do not exceed the front and rear end surfaces of the substrate.

2. The side-jointed spring sheet according to claim 1, wherein: The wing also includes a wing body and a pre-pressed folded piece formed by bending inward from the top of the wing body. The wing body between the two welding feet is welded to the printed circuit board as a welding surface, and the welding feet are welded in the welding holes on the printed circuit board.

3. The side-jointed spring sheet according to claim 2, wherein: The wing body of the other wing serves as a suction surface for absorbing the side-connected elastic sheet.

4. The side-jointed spring sheet according to claim 3, wherein: The elastic arm includes a connecting portion extending horizontally from the tensioning portion, a concave portion extending downward and then upward from the connecting portion, an inclined arm extending obliquely forward and upward from the concave portion, and a contact portion formed at the top of the inclined arm.

5. The side-jointed spring sheet according to claim 4, wherein: The welding feet at the front end of the wing do not exceed the front end surface of the substrate, and the welding feet at the rear end of the wing are located laterally outside the recessed portion. The tightening portion and the connecting portion are not covered by the wing and are exposed to the outside.

6. The side-jointed spring sheet according to claim 5, wherein: The upper surface of the connecting portion is flush with the upper end surface of the wing body, and the concave portion is sunken to the lower side of the top surface of the wing.

7. The side-jointed spring sheet according to claim 4, wherein: The side-connected spring piece also includes a support arm formed by bending in the opposite direction from the top of the inclined arm and extending toward the substrate. The support arm includes a support arm body, a support end portion formed by bending from the end of the support arm body, and a pre-pressed protrusion formed by protruding from both sides of the support arm body.

8. The side-jointed spring sheet according to claim 7, wherein: The pre-pressed folded piece is located above the pre-pressed convex portion to press the pre-pressed convex portion.

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