CN219350732U

CN219350732U - Spring plate and spring plate connecting device

Info

Publication number: CN219350732U
Application number: CN202320163080.7U
Authority: CN
Inventors: 唐敏
Original assignee: JUST CONNECTOR KUNSHAN CO Ltd; Kunshan Changying Precision Technology Co ltd
Current assignee: JUST CONNECTOR KUNSHAN CO Ltd; Kunshan Changying Precision Technology Co ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-07-14
Anticipated expiration: 2033-02-08

Abstract

The utility model provides a shell fragment, includes the base plate, from the elastic arm that base plate one end reverse bending formed and from the base plate other end downwards bend the end wall that forms and from the end wall lower extreme bend extend form in the first centre gripping arm of base plate below, end wall, first centre gripping arm with the base plate forms the clamping part, first centre gripping arm free end is formed with the contact part, and this application still includes a shell fragment connecting device.

Description

Spring plate and spring plate connecting device

Technical Field

The present disclosure relates to the field of electrical connectors, and more particularly to a spring and a spring connecting device.

Background

The spring sheet is a small conductive metal piece punched into a preset shape, is widely applied to consumer electronics such as mobile phones, computers and flat plates, and is used for transmitting antenna signals, connecting simple functional devices (such as vibration motors), connecting various switch keys and the like. The spring connector is generally welded on the circuit board in a welding manner, and the connected element realizes the electric connection between the element and the circuit board in a manner of pressing the spring contact. The conventional spring plate generally comprises a base plate, an elastic arm reversely bent from one end of the base plate and extending obliquely upwards, and a supporting arm bent from the tail end of the elastic arm towards the base plate, wherein the supporting arm is supported on the base plate when the elastic arm is pressed down so as to provide a second elastic supporting force for the elastic arm. The elastic sheet is generally welded and fixed on the circuit board through the base plate, the conductive and fixed functions are considered, the welded elastic sheet is stable and reliable, but the circuit board of some electronic products may have the problem of being unsuitable for SMT operation, or the loss of part of electronic products to the elastic sheet is large, and a structure convenient to disassemble is needed.

Disclosure of Invention

In view of the above, it is necessary to provide a spring plate and a spring plate connecting device without welding, and without performing SMT operation, so as to be applied to a circuit board which cannot perform SMT operation.

In order to solve the technical problem, the application provides an elastic sheet, which comprises a substrate, an elastic arm formed by reversely bending one end of the substrate, an end wall formed by downwards bending the other end of the substrate, and a first clamping arm formed below the substrate by bending and extending the lower end of the end wall, wherein the end wall, the first clamping arm and the substrate form a clamping part, and the free end of the first clamping arm is provided with a contact part.

Preferably, the first clamping arm is formed to extend obliquely upward, so that a distance between an initial portion of the first clamping arm and the substrate is greater than a distance between a free end of the first clamping arm and the substrate.

Preferably, the base plate is in a horizontally extending state, a tensioning portion is formed by reversely bending one side of the base plate away from the end wall, and the elastic arm extends from the tensioning portion.

Preferably, the elastic arm includes a horizontal portion extending horizontally from the tension portion above the substrate, an inclined portion extending obliquely upward from the horizontal portion, and a contact portion formed at a tip of the inclined portion.

Preferably, the top end of the inclined part is reversely bent and extends towards the base plate to form a supporting arm, the free end of the supporting arm is bent upwards to form a supporting end part, the two lateral sides of the supporting arm are protruded to form pre-pressing ends, the two lateral sides of the base plate are bent upwards to form wing parts, and the top ends of the wing parts are bent inwards to form pre-pressing parts located on the pre-pressing ends.

In order to solve the technical problem, the application also provides a spring plate connecting device, which comprises a circuit board and a spring plate clamped and fixed on the circuit board, wherein the spring plate comprises a substrate, an elastic arm formed by reversely bending one end of the substrate, an end wall formed by downwards bending the other end of the substrate, and a first clamping arm formed below the substrate by downwards bending and extending the lower end of the end wall, the first clamping arm and the substrate form a clamping part, the circuit board is inserted into the clamping part, and the substrate and the first clamping arm are respectively clamped on the upper side and the lower side of the circuit board.

Preferably, the free end of the first clamping arm is provided with a contact part, the lower side of the circuit board is provided with a contact area corresponding to the contact part area, and the contact parts are electrically connected together through the contact area.

Preferably, the first clamping arm is formed by extending obliquely upwards, so that a gap exists between an initial part of the first clamping arm and the circuit board, and the contact part has elastic force to tightly abut against the surface of the contact area.

Preferably, the substrate is in a horizontal extending state, a tensioning part is reversely bent at one side of the substrate far away from the end wall, the elastic arm extends from the tensioning part and comprises a horizontal part horizontally extending above the substrate from the tensioning part, an inclined part obliquely extending upwards from the horizontal part and a contact part formed at the top end of the inclined part.

This application shell fragment and shell fragment connecting device pass through form the clamping part of a U type after the base plate free end is bent, pass through clamping part will shell fragment fixed connection in on the circuit board, and the first centre gripping arm free end of clamping part set up in the contact portion of contact area contact of circuit board realizes electric conduction, and need not to carry out SMT or other welding modes, avoids specific component can not pass through the problem of high temperature environment, simultaneously, changes the shell fragment is simpler.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a perspective view of a spring plate connecting device according to the present application;

FIG. 2 is a perspective view of a spring plate of the present application;

fig. 3 is a cross-sectional view of the dome attachment apparatus of fig. 1.

Description of the reference numerals

A circuit board-10; a contact zone-11; spring piece-20; a clamping part-21; an end wall-211; a first clamping arm-212; a contact end-213; a substrate (second clamp arm) -22; a tightening part-23; an elastic arm-24; a horizontal part-241; an inclined portion-242; a contact portion-243; a support arm-25; a support end-251; pre-pressing end-26; wings-27; an extension-271; pre-pressing portion-272.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application.

The present application uses the X direction shown in fig. 2 as the transverse direction, uses the Y direction as the longitudinal direction or the front-rear direction, and uses the Z direction as the vertical direction.

Referring to fig. 1 and 3, the spring plate connecting device of the present application includes a circuit board 10 and a spring plate 20 clamped on the circuit board 10 and electrically connected to the circuit board 10.

The bottom surface of the circuit board 10 is provided with a contact area 11 at a corresponding position, and the contact area 11 is provided with a golden finger communicated with the internal circuit of the circuit board 10.

With continued reference to fig. 2 and 3, the spring 20 includes a clamping portion 21 inserted from an edge of one end of the circuit board 10 and clamping the circuit board in an up-down direction, a tightening portion 23 formed by bending the clamping portion 21, and an elastic arm 24 extending obliquely upward from the tightening portion 23. The clamping portion 21 includes an end wall 211, a first clamping arm 212 formed by bending and extending from the bottom side of the end wall 211, and a second clamping arm 22 formed by bending and extending from the upper side of the end wall 211 and above the first clamping arm 212. The free end of the first clamping arm 212 is folded downwards to form a contact end 213 which can play a guiding role. Specifically, when the first clamping arm 212 is bent from the end wall 211, the first clamping arm 211 is bent at an included angle smaller than 90 degrees, so that a certain gap exists between the initial portion of the first clamping arm 211 and the bottom surface of the circuit board 10, and the contact end 213 of the free end of the first clamping arm 212 has a certain elastic force and is in electrical contact with the contact area 11. The end wall 211 is located outside the circuit board 10. The second clamping arm 22 is in a horizontally extending state and is closely attached to the upper surface of the circuit board 10. The second clamping arm 22 is used as a base plate, and the tightening part 23 is formed by reversely bending the free end of the base plate 22.

The elastic arm 24 includes a horizontal portion 241 extending horizontally from the tension portion 23 above the base plate 22, an inclined portion 242 extending obliquely upward from the horizontal portion 241, and a contact portion 243 formed at the tip of the inclined portion 242. The spring plate 20 further includes a support arm 25 bent and extended obliquely backward and downward from the upper end of the elastic arm 24, and a free end of the support arm 25 is slightly bent to form a support end 251 that can slide on the base plate 22. The lateral two sides of the supporting arm 25 are respectively and outwards protruded to form a pre-pressing end 26.

The spring 20 further includes a wing portion 27 formed by bending and extending upward from two lateral sides of the base 22, and the wing portion 27 includes an extension portion 271 formed by bending and extending upward vertically from two lateral sides of the base 22, and a pre-pressing portion 272 formed by bending and bending relatively from the top end of the extension portion 271 and located above the pre-pressing end 26. The pre-pressing portion 272 and the pre-pressing end 26 function and principle are to ensure the flatness of the contact portion 243, which is a conventional technology and will not be described herein.

The clip portion 21 of the spring plate 20 has a U-shaped structure, and is inserted into the upper and lower sides of the circuit board 10 from the opening end, so that the contact portion 213 electrically contacts the contact area 11 on the lower surface of the circuit board 10. The first clamping arm 212 clamps the circuit board 10 with the substrate 22 on both upper and lower sides. And when changing, can dismantle fast the shell fragment 20, also need not carry out SMT welding operation because of welding the shell fragment 20 yet, can not produce high temperature to other spare part and influence.

This application shell fragment and shell fragment connecting device is through being in after base plate 22 free end bends forms the clamping part 21 of a U type, through clamping part 21 will shell fragment 20 fixed connection in on the circuit board 10, and the first centre gripping arm 212 free end of clamping part 21 set up in the contact portion 213 of the contact area 11 contact of circuit board 10 realizes electric conduction, and need not to carry out SMT or other welding modes, avoids specific component can not pass through the problem of high temperature environment, simultaneously, it is simpler to change shell fragment 20.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The elastic sheet is characterized by comprising a base plate, an elastic arm formed by reversely bending one end of the base plate, an end wall formed by downwards bending the other end of the base plate, and a first clamping arm formed below the base plate by bending and extending from the lower end of the end wall, wherein the end wall, the first clamping arm and the base plate form a clamping part, and the free end of the first clamping arm is provided with a contact part.

2. The spring of claim 1, wherein the first clamping arm is formed to extend obliquely upward such that a distance between an initial portion of the first clamping arm and the substrate is greater than a distance between a free end of the first clamping arm and the substrate.

3. The spring plate according to claim 2, wherein the base plate is in a horizontally extended state, a tensioning portion is formed by reversely bending one side of the base plate away from the end wall, and the elastic arm is formed by extending from the tensioning portion.

4. A spring plate according to claim 3, wherein the elastic arm includes a horizontal portion extending horizontally from the tension portion above the base plate, an inclined portion extending obliquely upward from the horizontal portion, and a contact portion formed at a tip of the inclined portion.

5. The spring according to claim 4, wherein the inclined portion top end is reversely bent and extends towards the base plate to form a supporting arm, the free end of the supporting arm is upwardly bent to form a supporting end, the two lateral sides of the supporting arm are convexly formed with pre-pressing ends, the two lateral sides of the base plate are upwardly bent and extend to form wing portions, and the top end of each wing portion is inwardly bent to form a pre-pressing portion located on each pre-pressing end.

6. The utility model provides a shell fragment connecting device, its characterized in that includes the circuit board and the centre gripping is fixed in shell fragment on the circuit board, the shell fragment includes the base plate, from the elastic arm that the reverse bending of base plate one end formed and from the end wall that the base plate other end was bent downwards and from the end wall lower extreme bend extend form in the first centre gripping arm of base plate below, end wall, first centre gripping arm with the base plate forms the clamping part, the circuit board inserts in the clamping part, base plate and first centre gripping arm respectively centre gripping in both sides about the circuit board.

7. The spring connector of claim 6, wherein the free ends of the first clamping arms are formed with contact portions, and the underside of the circuit board is formed with contact areas corresponding to the contact areas, and the contact portions are electrically connected together through the contact areas.

8. The spring connector of claim 7, wherein the first clamping arm extends obliquely upward, so that a gap exists between the initial portion of the first clamping arm and the circuit board, and the contact portion has an elastic force to tightly abut against the contact area surface.

9. The spring plate connecting device according to claim 8, wherein the base plate is in a horizontally extended state, a tightening part is formed by reversely bending one side of the base plate away from the end wall, the elastic arm is formed by extending from the tightening part, and the elastic arm comprises a horizontal part horizontally extending from the tightening part above the base plate, an inclined part obliquely extending upwards from the horizontal part, and a contact part formed at the top end of the inclined part.

10. The spring plate connecting device according to claim 9, wherein the top end of the inclined part is reversely bent and extends towards the base plate to form a supporting arm, the free end of the supporting arm is bent upwards to form a supporting end part, the two lateral sides of the supporting arm are protruded to form a pre-pressing end, the two lateral sides of the base plate are bent upwards to form wing parts, and the top end of each wing part is bent inwards to form a pre-pressing part positioned on the pre-pressing end.