CN216981047U

CN216981047U - Grounding elastic sheet

Info

Publication number: CN216981047U
Application number: CN202220791436.7U
Authority: CN
Inventors: 柯炎华
Original assignee: Jiangsu Dingshiding Precision Technology Co ltd
Current assignee: Suzhou Maoshimao Automation Equipment Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-07-15
Anticipated expiration: 2032-04-07

Abstract

The utility model relates to the technical field of hardware of electronic equipment, in particular to a grounding elastic sheet, which comprises a main body, a grounding elastic sheet and a grounding elastic sheet, wherein the horizontal section of the main body is approximately 21274; the longitudinal limiting part is raised out of the main body and clamped by the end part of the longitudinal limiting part; the plate end contact part and the shell end contact part extend out from the main body clamping wall and are respectively inwards protruded on the main body and outwards protruded on the main body; the grounding elastic sheet is limited on the shell by the longitudinal limiting part, and no additional groove is required on the circuit board, so that the universality of the grounding elastic sheet is improved.

Description

Grounding elastic sheet

Technical Field

The utility model relates to the technical field of hardware of electronic equipment, in particular to a grounding elastic sheet.

Background

As more and more electronic components are integrated on a circuit board, electromagnetic interference (EMI), electrostatic interference, and noise interference from the electronic components themselves and from the outside world become a problem in the industry. At present, most methods for solving the problems adopt the modes of arranging an electromagnetic shielding shell, a grounding sheet and the like.

Patent CN203983520U discloses a lateral-pressure grounding spring for conducting a vertically assembled circuit board with a metal housing without soldering or screwing on the circuit board or rigidly fixing the circuit board with the metal housing, but it requires a limiting groove on the circuit board, and can only be applied to a circuit board with this specific structure, thus limiting the application of the grounding spring.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to overcome the defects in the prior art, and to provide a grounding elastic sheet, in which a longitudinal limiting portion is used to limit the grounding elastic sheet on a housing, and no additional slot is required to be formed on a circuit board, so as to improve the versatility of the grounding elastic sheet.

The utility model relates to a grounding elastic sheet, which comprises a main body, a grounding elastic sheet and a grounding elastic sheet, wherein the horizontal section of the main body is approximately in a shape of a letter 21274; the device also comprises at least one longitudinal limiting part, a plate end contact part and a shell end contact part, wherein the longitudinal limiting part protrudes out of the main body in an upwarping manner and is clamped by the end part of the longitudinal limiting part; both the plate end contact portion and the shell end contact portion extend from the main body clamping wall and are respectively inwardly protruded to the main body and outwardly protruded to the main body.

Further, the plate end contact portion and the shell end contact portion are connected into a whole and are arranged in an S shape in the window on the clamping wall.

Further, the plate end contact portion and the shell end contact portion are of a split structure.

Further, the plate-end contact portion is arranged along the horizontal direction and along the direction into the main body, and the shell-end contact portion is arranged along the vertical direction.

Furthermore, protruding parts are arranged on the plate end contact part and the shell end contact part.

Further, the plate end contact portion and the shell end contact portion are connected to the main body through elastic arms.

Further, the main part still includes the lateral wall, the both sides of lateral wall are connected through the elasticity portion the chuck wall, vertical restriction portion establishes on the lateral wall.

Further, the two elastic parts are gradually close to each other on the side close to the clamping wall and gradually far away from each other in the far direction to form an inner eight structure.

The utility model has the beneficial effects that: the grounding elastic sheet disclosed by the utility model is provided with a v-21274, the two sides of the main body are provided with clamping walls for clamping a circuit board, meanwhile, the main body is provided with a longitudinal limiting part which is tilted outwards, and the longitudinal limiting part is fixed on a shell.

Drawings

The utility model is further described below with reference to the following figures and examples:

FIG. 1 is an assembled view of the present invention;

FIG. 2 is a schematic structural diagram of a grounding spring of the present invention;

FIG. 3 is another angular perspective view of FIG. 2;

FIG. 4 is a schematic structural diagram of another embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a further embodiment of the present disclosure.

Description of reference numerals: the circuit board comprises a shell a, a circuit board b, a main body 100, a clamping wall 110, a side wall 120, an elastic part 121, a longitudinal limiting part 122, a board end contact part 111, a shell end contact part 112, a convex part 113 and an elastic arm 114.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-3, the grounding spring piece in the present embodiment includes a main body 100, which has a horizontal cross section of substantially v-21274, or U-shape, and specifically includes two clamping walls 110 for elastically clamping the circuit board b and a side wall 120 for connecting the clamping walls 110, wherein the side wall 120 is partially connected to the clamping walls 110 by elastic parts 121.

In this embodiment, two longitudinal limiting portions 122 for clamping the housing a are formed on the side wall 120, the longitudinal limiting portions 122 protrude from the main body 100 in an outward tilting manner, the two longitudinal limiting portions 122 are disposed oppositely, preferably, the longitudinal limiting portions 122 have certain elasticity in a direction perpendicular to the side wall 120, when the grounding elastic sheet is inserted into the hole of the housing a from top to bottom, the longitudinal limiting portions 122 are deformed by the pressure of the wall of the hole, so that the grounding elastic sheet can be inserted smoothly, and the two longitudinal limiting portions 122 are located above and below the wall of the housing respectively for clamping.

A clamping wall 110 of the body 100 is formed with a plate-end contact portion 111 and a case-end contact portion 112; both the plate-end contact portion 111 and the shell-end contact portion 112 extend from the chuck wall 110 of the main body 100, and protrude inwardly from the main body 100 and outwardly from the main body 100, respectively.

As shown in fig. 3, in this embodiment, the plate end contact portion 111 and the shell end contact portion 112 are integrally connected and are disposed in an S-shape in the opening of the clamping wall 110, and the plate end contact portion 111 and the shell end contact portion 112 may be formed by punching and may be stretched in a certain length direction during punching.

The plate end contact part 111 and the shell end contact part 112 are both provided with a protruding part 113, and the protruding part 113 forms point contact with contact points of the shell a and the circuit board b, so that good contact performance can be ensured, and the conduction effect is improved.

Specifically, the plate end contact portion 111 and the shell end contact portion 112 each include a resilient arm 114, and are connected to the main body 100 through the resilient arm 114.

In practical use, the v-21274h-shaped grounding elastic sheet main body 100 is clamped on the edge of the circuit board b, the contact part on the circuit board b is electrically conducted by the board end contact part 111, and then the board end contact part is inserted into the metal shell a along the vertical direction, and the convex shell end contact part 112 conducts the metal shell a.

The two elastic parts 121 are gradually close to each other on the side close to the clamping wall 110, and gradually move away from each other in the direction of moving away to form an inner eight structure, and the convex elastic part 121 limits the lateral movement of the grounding elastic sheet.

In another embodiment, the plate end contact portion 111 and the shell end contact portion 112 are separate structures, as shown in fig. 4.

As shown in fig. 5, a further improvement is that the board end contact portion 111 is arranged along the horizontal direction and along the direction of entering the main body 100, so as to be easily snapped on the side edge of the circuit board b, and the case end contact portion 112 is arranged along the vertical direction.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. A grounding spring piece is characterized by comprising:

a body having a horizontal cross-section generally in the shape of a letter 21274, having two clamping walls for resilient clamping;

the longitudinal limiting part protrudes out of the main body in an outward tilting mode and is clamped by the end part of the longitudinal limiting part;

a plate end contact portion extending from the body clamp wall and projecting inwardly of the body;

and the shell end contact part extends out of the main body clamping wall and protrudes out of the main body.

2. A grounding spring as claimed in claim 1, wherein: the plate end contact part and the shell end contact part are connected into a whole and are arranged in an S-shaped window on the clamping wall.

3. The grounding spring piece according to claim 1, wherein: the plate end contact part and the shell end contact part are of a split structure.

4. A grounding spring as claimed in claim 3, wherein: the plate end contact portions are arranged along the horizontal direction and along the direction of entering the main body, and the shell end contact portions are arranged along the vertical direction.

5. A grounding spring according to any one of claims 1-4, characterized in that: and the plate end contact part and the shell end contact part are both provided with a convex part.

6. The grounding spring piece according to claim 5, wherein: the plate end contact portion and the shell end contact portion are connected to the main body through elastic arms.

7. The grounding spring piece according to claim 1, wherein: the main part still includes the lateral wall, the both sides of lateral wall are connected through the elasticity portion the chuck wall, vertical restriction portion establishes on the lateral wall.

8. The grounding spring piece according to claim 7, wherein: the two elastic parts are gradually close to each other at one side close to the clamping wall and gradually far away in the opposite direction to form an inner eight structure.