CN216598076U

CN216598076U - Double-contact elastic sheet

Info

Publication number: CN216598076U
Application number: CN202122494009.0U
Authority: CN
Inventors: 何黎
Original assignee: Shenzhen Sunway Communication Co Ltd
Current assignee: Shenzhen Sunway Communication Co Ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-05-24
Anticipated expiration: 2031-10-15

Abstract

The utility model discloses a double-contact elastic sheet, which comprises a substrate and elastic arms, wherein a window is arranged on the substrate, two opposite side walls of the window are respectively connected with the elastic arms, the two elastic arms respectively extend towards the oblique upper part of the inner side, and the two elastic arms are staggered when the double-contact elastic sheet is viewed from the front. This double-contact shell fragment novel structure is simple, and processing production is easy, and low in manufacturing cost is honest and clean, can realize that the contact of double contact switches on, and the specially adapted external device needs the application scene that two points switched on, and this double-contact shell fragment can also play and shorten the circuit conduction path, reduces the effect of contact impedance to this double-contact shell fragment can provide bigger contact elasticity when switching on with the contact of external device, makes the external device switch on more reliable and more stable.

Description

Double-contact elastic sheet

Technical Field

The utility model relates to the technical field of conducting elastic sheets, in particular to a double-contact elastic sheet.

Background

In the prior art, a commonly used conducting elastic sheet is often in a C shape or an O shape, but both the C-shaped elastic sheet and the O-shaped elastic sheet are in a single-contact elastic sheet structure, and when an external device needs to be conducted in a double-point contact manner, the C-shaped elastic sheet and the O-shaped elastic sheet cannot be used.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: a double-contact spring plate is provided.

In order to solve the technical problems, the utility model adopts the technical scheme that: a double-contact elastic sheet comprises a base plate and elastic arms, wherein a window is arranged on the base plate, two opposite side walls of the window are respectively connected with the elastic arms, the two elastic arms respectively extend towards the oblique upper side of the inner side, and the two elastic arms are staggered when the double-contact elastic sheet is looked at.

Furthermore, one end of the elastic arm far away from the substrate is provided with a contact part.

Further, the height difference between the two contact portions and the substrate is equal.

Furthermore, one end of the elastic arm, which is far away from the substrate, extends obliquely towards the direction close to the substrate to form a hook-preventing part.

Furthermore, at least one through hole is formed in the substrate.

Further, the number of the through holes on the substrate is two, and the window is located between the two through holes.

Further, the window is rectangular.

Further, an arc-shaped part is formed at one end of the elastic arm, and the elastic arm is connected with the substrate through the arc-shaped part.

Further, the total length of the single resilient arm is less than or equal to the length of the window.

Furthermore, two sides of the joint of the elastic arm and the base plate are provided with force unloading grooves.

The utility model has the beneficial effects that: this double-contact shell fragment novel structure is simple, and processing production is easy, and low in manufacturing cost is honest and clean, can realize that the contact of double contact switches on, and the specially adapted external device needs the application scene that two points switched on, and this double-contact shell fragment can also play and shorten the circuit conduction path, reduces the effect of contact impedance to this double-contact shell fragment can provide bigger contact elasticity when switching on with the contact of external device, makes the external device switch on more reliable and more stable.

Drawings

Fig. 1 is a schematic structural view of a double-contact spring plate according to a first embodiment of the present invention;

fig. 2 is a schematic view of a working state of a dual-contact spring according to a first embodiment of the utility model.

Description of reference numerals:

1. a substrate; 11. a window; 12. a through hole; 13. a force unloading groove;

2. a resilient arm;

3. a contact portion;

4. an arc-shaped portion;

5. a hook prevention part;

10. an external device;

20. an outer support;

30. and (4) screws.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 and 2, a dual-contact spring plate includes a substrate 1 and elastic arms 2, a window 11 is disposed on the substrate 1, two opposite sidewalls of the window 11 are respectively connected with the elastic arms 2, the two elastic arms 2 respectively extend towards an inner upper oblique side, and when the dual-contact spring plate is viewed from the front, the two elastic arms 2 are staggered.

From the above description, the beneficial effects of the present invention are: this double-contact shell fragment novel structure is simple, and processing production is easy, and low in manufacturing cost is honest and clean, can realize that the contact of double contact switches on, and specially adapted external device 10 needs the application scene that two points switched on, and this double-contact shell fragment can also play and shorten the circuit conduction path, reduces contact impedance's effect to this double-contact shell fragment can provide bigger contact elasticity when switching on with external device 10 contact, makes external device 10 switch on more reliable and more stable.

Further, a contact portion 3 is formed at one end of the elastic arm 2 away from the substrate 1.

As can be seen from the above description, the existence of the contact portion 3 enables the dual-contact elastic sheet to be better contacted and conducted with the external device 10, so as to prevent the elastic arm 2 from scratching and scratching the external device 10.

Further, the height difference between the two contact portions 3 and the substrate 1 is equal.

As can be seen from the above description, the equal height difference between the two contacts 3 and the substrate 1 is particularly suitable for the case where the two contact conduction areas on the external device 10 are coplanar.

Furthermore, one end of the elastic arm 2 away from the substrate 1 extends obliquely towards the direction close to the substrate 1 to form a hook-preventing part 5.

As can be seen from the above description, the hook-preventing portion 5 can effectively prevent the elastic arm 2 from hooking back when the external device 10 is separated from the dual-contact elastic piece, so that the dual-contact elastic piece fails, and the service life of the dual-contact elastic piece is ensured.

Further, at least one through hole 12 is formed on the substrate 1.

As can be seen from the above description, when the dual-contact elastic sheet is welded and conducted with the external bracket 20, the through hole 12 can prevent cold joint, which is beneficial to ensuring the welding stability of the dual-contact elastic sheet and the external bracket 20; when the double-contact spring plate is in screw connection with the outer bracket 20 and is in contact conduction, the through hole 12 can allow the screw 30 to pass through the installation position.

Further, the number of the through holes 12 on the substrate 1 is two, and the window 11 is located between the two through holes 12.

As can be seen from the above description, the two spring plates are disposed near the two ends of the substrate 1, respectively, so that the connection between the two spring plates and the external bracket 20 is more stable.

Further, the window 11 is rectangular.

As can be seen from the above description, the specific shape of the window 11 can be set as desired.

Further, an arc portion 4 is formed at one end of the elastic arm 2, and the elastic arm 2 is connected to the substrate 1 through the arc portion 4.

Further, the total length of the single elastic arm 2 is less than or equal to the length of the window 11.

As can be seen from the above description, the elastic arm 2 can be formed by bending the material that needs to be removed in manufacturing the window 11, which not only reduces the waste of the material, but also reduces the difficulty and complexity in processing the dual-contact spring.

Further, two sides of the connection part of the elastic arm 2 and the base plate 1 are provided with force unloading grooves 13.

From the above description, the stress concentration phenomenon at the joint of the elastic arm 2 and the substrate 1 can be improved by the arrangement of the force-releasing groove 13, which is beneficial to ensuring the structural stability of the double-contact elastic sheet, so that the double-contact elastic sheet is durable.

Example one

Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: a double-contact spring piece can be applied to electronic equipment such as mobile phones, tablet computers, intelligent watches, interphones and earphones, and is particularly suitable for application scenes that an external device 10 needs double-point contact.

The double-contact elastic piece comprises a substrate 1 and elastic arms 2, wherein a window 11 is arranged on the substrate 1, two opposite side walls of the window 11 are respectively connected with the elastic arms 2, the two elastic arms 2 respectively extend towards the inner side obliquely upwards, one ends of the elastic arms 2 far away from the substrate 1 are provided with contact parts 3, and the two elastic arms 2 are staggered when the double-contact elastic piece is viewed.

Alternatively, the height difference between the two contact portions 3 and the substrate 1 is equal.

In order to prevent the elastic arm 2 from being accidentally hooked, one end of the elastic arm 2, which is far away from the substrate 1, extends obliquely towards the direction close to the substrate 1 to form a hook-preventing part 5.

In this embodiment, the double-contact spring plate is in contact with the external bracket 20 and is connected and fixed by the screw 30, so that the substrate 1 is provided with at least one through hole 12. Preferably, the number of the through holes 12 on the substrate 1 is two, and the window 11 is located between the two through holes 12. Therefore, the double-contact elastic sheet can meet the application of non-SMT processing. It is easy to understand that the double-contact spring plate can also be suitable for SMT manufacture procedure, and at the moment, the through hole 12 can play a role in preventing cold solder joint. It should be noted that the external bracket 20 includes, but is not limited to, a PCB board and the like.

Optionally, the window 11 is rectangular. In other embodiments, the window 11 may also be in other shapes, such as a long circular hole shape, a circle, a square, etc.

As a preferred embodiment, the double-contact spring is a one-piece structure formed by punching and bending a metal sheet, and in detail, the total length of the single elastic arm 2 is less than or equal to the length of the window 11. The total length of the elastic arm 2 refers to the linear length of the elastic arm 2 after the elastic arm 2, the arc-shaped portion 4, the contact portion 3, and the hook prevention portion 5 are straightened and the bending regions are eliminated.

In order to ensure the structural stability of the double-contact elastic sheet, two sides of the joint of the elastic arm 2 and the substrate 1 are provided with force unloading grooves 13.

In summary, the double-contact spring plate provided by the utility model has the advantages of novel and simple structure, easy processing and production, low manufacturing cost, capability of realizing double-contact conduction, and particular suitability for application scenes that an external device needs double-point conduction; the integrally formed double-contact elastic sheet with the integrated structure is stable in structure and durable in use; the elastic arm can be made of materials which need to be removed originally when the window is formed in the substrate, so that the waste of the materials can be reduced, and the processing difficulty and complexity can be reduced.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention and the contents of the accompanying drawings, which are directly or indirectly applied to the related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a two contact shell fragments, includes base plate and elastic arm, its characterized in that: the substrate is provided with a window, two opposite side walls of the window are respectively connected with the elastic arms, the two elastic arms respectively extend towards the oblique upper side of the inner side, and the two elastic arms are staggered when the double-contact elastic piece is looked forward.

2. The dual-contact dome of claim 1, wherein: and one end of the elastic arm, which is far away from the substrate, is provided with a contact part.

3. The dual-contact dome of claim 2, wherein: the height difference between the two contact parts and the substrate is equal.

4. The dual-contact dome of claim 1, wherein: one end of the elastic arm far away from the substrate extends towards the direction close to the substrate in an inclined mode to form a hook-preventing portion.

5. The dual-contact dome of claim 1, wherein: the substrate is provided with at least one through hole.

6. The dual-contact dome of claim 5, wherein: the number of the through holes on the substrate is two, and the window is located between the two through holes.

7. The dual-contact dome of claim 1, wherein: the window is rectangular.

8. The dual-contact dome of claim 1, wherein: one end of the elastic arm is provided with an arc-shaped part, and the elastic arm is connected with the substrate through the arc-shaped part.

9. The dual-contact dome of claim 1, wherein: the total length of the single resilient arm is less than or equal to the length of the window.

10. The dual-contact dome of claim 1, wherein: and force unloading grooves are arranged on two sides of the joint of the elastic arm and the base plate.