CN216389224U

CN216389224U - Elastic sheet and switch assembly

Info

Publication number: CN216389224U
Application number: CN202122024565.1U
Authority: CN
Inventors: 何黎
Original assignee: Shenzhen Sunway Communication Co Ltd
Current assignee: Shenzhen Sunway Communication Co Ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-04-26
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a spring plate and a switch assembly, wherein the spring plate comprises a top plate and elastic arms, the two sides of the top plate are respectively connected with the elastic arms, one end of each elastic arm, which is far away from the top plate, is connected with a welding part, the top plate and the two elastic arms enclose a containing cavity, and a protruding part which extends into the containing cavity is arranged on the top plate. This shell fragment novel structure is simple, convenient processing production, is formed with moreover and holds the chamber, and the required area that occupies on the board of the shell fragment that has significantly reduced accords with the development trend that electronic equipment is frivolous.

Description

Elastic sheet and switch assembly

Technical Field

The utility model relates to the technical field of conducting elastic sheets, in particular to an elastic sheet and a switch assembly.

Background

The existing conducting elastic sheet is generally an O-shaped elastic sheet or a C-shaped elastic sheet, the O-shaped elastic sheet and the C-shaped elastic sheet need to occupy larger area on a board, along with the higher integration level of electronic equipment, more and more components on a PCB are arranged, and then the conducting elastic sheet occupies the larger area on the board obviously and is not suitable, the current distance between the O-shaped elastic sheet and the C-shaped elastic sheet is long in time to market for the first time, and the structure of the conducting elastic sheet is not greatly improved all the time.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: a novel spring plate with small occupied area on the plate and a switch assembly with the spring plate are provided.

In order to solve the technical problems, the utility model adopts the technical scheme that: the elastic sheet comprises a top plate and elastic arms, wherein the elastic arms are connected to two sides of the top plate respectively, one end, far away from the top plate, of each elastic arm is connected with a welding portion, the top plate and the two elastic arms form a containing cavity in an enclosing mode, and a protruding portion extending into the containing cavity is arranged on the top plate.

Further, the elastic arm or the top plate is provided with a suction area.

Further, the two sides of the protruding part are respectively provided with the suction areas.

Further, the protruding part is a stamping structure formed by stamping.

Further, the bottom surfaces of the welding parts are coplanar.

Further, the elastic arm is overall in a serpentine shape.

Further, the elastic arm includes consecutive first elastic force arm, first arc force arm, second elastic force arm and second arc force arm, first elastic force arm is kept away from the one end of first arc force arm is connected the roof, the second arc force arm is kept away from the one end of second elastic force arm is connected the welding part.

Further, the width of the first elastic force arm is gradually increased from one end close to the top plate part to one end close to the first arc-shaped force arm.

Furthermore, the elastic sheet is of an integrated structure formed integrally.

In order to solve the technical problems, the utility model also adopts the following technical scheme: the switch assembly comprises a wiring substrate, components and parts arranged on the wiring substrate and the elastic sheet, wherein the elastic sheet is welded and conducted with the wiring substrate through a welding part, and the components and parts are located in the accommodating cavity and correspond to the protruding parts.

The utility model has the beneficial effects that: this shell fragment novel structure is simple, convenient processing production, is formed with moreover and holds the chamber, and the required area that occupies on the board of the shell fragment that has significantly reduced accords with the development trend that electronic equipment is frivolous.

Drawings

Fig. 1 is a schematic structural view of an overall structure of a spring plate according to an embodiment of the present invention;

FIG. 2 is a front view of a spring plate according to an embodiment of the present invention;

fig. 3 is a front view of the switch assembly according to the second embodiment of the present invention (when the resilient plate is not pressed);

fig. 4 is a front view of the switch assembly according to the second embodiment of the present invention (when the resilient plate is pressed).

Description of reference numerals:

1. a wiring substrate;

2. a component;

3. a spring plate; 31. a top plate; 311. a boss portion; 32. a resilient arm; 321. a first elastic force arm; 322. a first arcuate force arm; 323. a second elastic force arm; 324. a second arc-shaped force arm; 33. welding the part; 34. an accommodating chamber; 35. and (4) a suction area.

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 to 4, a spring plate 3 includes a top plate 31 and two elastic arms 32, two sides of the top plate 31 are respectively connected with the elastic arms 32, one end of the elastic arm 32, which is far away from the top plate 31, is connected with a welding portion 33, the top plate 31 and the two elastic arms 32 enclose an accommodating cavity 34, and a protrusion 311 extending into the accommodating cavity 34 is disposed on the top plate 31.

From the above description, the beneficial effects of the present invention are: this shell fragment 3 novel structure is simple, convenient processing production, is formed with moreover and holds chamber 34, has reduced the required area that occupies of shell fragment 3 on the board greatly, accords with the development trend that electronic equipment is frivolous.

Further, the elastic arm 32 or the top plate 31 has a suction area 35 thereon.

Further, the suction areas 35 are respectively provided on both sides of the convex portion 311.

As can be seen from the above description, the elastic sheet 3 can be soldered on the wiring substrate 1 by a surface mounting process, which greatly facilitates the use of the elastic sheet 3.

Further, the protruding portion 311 is a stamped structure formed by stamping.

As can be seen from the above description, the boss 311 has a simple structure and is easy to mold.

Further, the bottom surfaces of the respective welding portions 33 are arranged coplanar.

Further, the resilient arm 32 is generally serpentine in shape.

As can be seen from the above description, the serpentine-shaped elastic arm 32 occupies a small space and can provide a large elastic force.

Further, the elastic arm 32 includes a first elastic force arm 321, a first arc force arm 322, a second elastic force arm 323 and a second arc force arm 324 connected in sequence, the first elastic force arm 321 is far away from one end of the first arc force arm 322 and is connected to the top plate 31, and the second arc force arm 324 is far away from one end of the second elastic force arm 323 and is connected to the welding part 33.

As can be seen from the above description, the elastic arm 32 has a simple structure, can be directly bent and formed, and is easy to process.

Further, the width of the first elastic arm 321 gradually increases from one end near the top plate 31 to one end near the first arc-shaped arm 322.

As can be seen from the above description, when the top plate 31 is stressed, the elastic arm 32 can quickly respond, and the sensitivity of the elastic sheet 3 is effectively ensured.

Further, the elastic sheet 3 is an integrated structure formed integrally.

As can be seen from the above description, the integrally formed elastic sheet 3 is not only easy to process and manufacture, but also has good structural stability.

The switch assembly comprises a wiring substrate 1 and a component 2 arranged on the wiring substrate 1, and further comprises the elastic sheet 3, the elastic sheet 3 is welded and conducted with the wiring substrate 1 through a welding part 33, and the component 2 is located in the accommodating cavity 34 and corresponds to the protruding part 311.

As can be seen from the above description, when the elastic sheet 3 is pressed, the protrusion 311 contacts the component 2 to achieve conduction.

Example one

Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: an elastic sheet 3 can be applied to electronic equipment such as a mobile phone, a tablet personal computer, a notebook computer and an intelligent watch, and is particularly suitable for electronic equipment with high integration level.

The elastic sheet 3 comprises a top plate 31 and elastic arms 32, the two sides of the top plate 31 are respectively connected with the elastic arms 32, one end, far away from the top plate 31, of each elastic arm 32 is connected with a welding part 33, the top plate 31 and the two elastic arms 32 enclose a containing cavity 34, and a protruding part 311 extending into the containing cavity 34 is arranged on the top plate 31. In this embodiment, the two opposite sides of the top plate 31 are respectively connected with the elastic arms 32, and preferably, the elastic arms 32 located at the two opposite sides of the top plate 31 are arranged oppositely, so that the stress of the elastic sheet 3 is more balanced, and the work stability of the elastic sheet 3 is favorably ensured. In other embodiments, the elastic arms 32 may be disposed on two adjacent sides of the top plate 31; meanwhile, the number of the elastic arms 32 connected to one side of the top plate 31 may be one or more.

As a further development, the top plate 31 may also be connected to the elastic arms 32 at three sides, four sides or more sides, so as to further improve the working stability of the elastic sheet 3, but at this time, a derivative scheme based on the connection of the elastic arms 32 at two sides of the top plate 31 is adopted, and therefore, it should be considered as belonging to the protection scope of the present invention.

In order to facilitate the welding of the elastic sheet 3 on the wiring substrate 1, the elastic arm 32 or the top plate 31 has a suction area 35, the bottom surface of each welding portion 33 is disposed in a coplanar manner, and optionally, the suction areas 35 are respectively disposed on two sides of the protruding portion 311.

Optionally, the protrusion 311 is a stamping structure formed by stamping.

In a preferred embodiment, the resilient arms 32 are generally serpentine in shape. In this embodiment, the elastic arm 32 includes a first elastic force arm 321, a first arc force arm 322, a second elastic force arm 323, and a second arc force arm 324 connected in sequence, the first elastic force arm 321 is far away from one end of the first arc force arm 322 and is connected to the top plate 31, and the second arc force arm 324 is far away from one end of the second elastic force arm 323 and is connected to the welding portion 33. Preferably, the width of the first elastic arm 321 is gradually increased from one end near the top plate 31 to one end near the first arc-shaped arm 322.

In order to facilitate the processing of the elastic sheet 3 and improve the integrity of the elastic sheet 3, the elastic sheet 3 is preferably an integrated structure integrally formed by cutting, bending, stamping and other processes of a metal plate. In this embodiment, the top surface of the top plate 31 is flush with the top surface of the first elastic arm 321, and the bottom surface of the welding portion 33 is parallel to the top surface of the top plate 31.

Example two

Referring to fig. 1 to 4, a second embodiment of the present invention is: the switch component can be applied to electronic equipment such as mobile phones, tablet computers, notebook computers and intelligent watches, and is particularly suitable for electronic equipment with high integration level.

The switch assembly comprises a wiring substrate 1 and an element 2 arranged on the wiring substrate 1, and further comprises an elastic sheet 3, wherein the elastic sheet 3 comprises a top plate 31 and elastic arms 32, the two sides of the top plate 31 are respectively connected with the elastic arms 32, one end of the top plate 31, far away from the elastic arms 32, is connected with a welding part 33, the top plate 31 and the two elastic arms 32 are enclosed to form a containing cavity 34, a protruding part 311 extending into the containing cavity 34 is arranged on the top plate 31, the elastic sheet 3 is welded and conducted with the wiring substrate 1 through the welding part 33, and the element 2 is located in the containing cavity 34 and corresponds to the protruding part 311. The wiring substrate 1 may be a PCB or the like.

In this embodiment, the two opposite sides of the top plate 31 are respectively connected with the elastic arms 32, and preferably, the elastic arms 32 located at the two opposite sides of the top plate 31 are arranged oppositely, so that the stress of the elastic sheet 3 is more balanced, and the work stability of the elastic sheet 3 is favorably ensured. In other embodiments, the elastic arms 32 may be disposed on two adjacent sides of the top plate 31; meanwhile, the number of the elastic arms 32 connected to one side of the top plate 31 may be one or more.

As shown in fig. 1 and 2, in order to facilitate the soldering of the elastic sheet 3 on the wiring substrate 1, the elastic arm 32 or the top plate 31 has a suction area 35, the bottom surface of each soldering portion 33 is disposed in a coplanar manner, and optionally, the suction area 35 is disposed on each of two sides of the protruding portion 311.

Optionally, the protrusion 311 is a stamping structure formed by stamping.

In order to facilitate the processing of the elastic sheet 3 and improve the integrity of the elastic sheet 3, the elastic sheet 3 is preferably an integrated structure integrally formed by cutting, bending, stamping and other processes of a metal plate.

In conclusion, the spring plate and the switch assembly provided by the utility model have the advantages that the structure is novel and simple, the processing and the production are convenient, the accommodating cavity is formed, the area occupied by the spring plate on the plate is greatly reduced, and the development trend of lightening and thinning of electronic equipment is met; the width of the first elastic force arm is gradually increased from one end close to the top plate to one end close to the first arc-shaped force arm, and when the top plate is stressed, the elastic arms can quickly respond, so that the sensitivity of the elastic sheet is effectively ensured; the elastic sheet is integrally formed, so that the processing and the manufacturing are easy, and the structural stability is good.

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

Claims

1. An elastic sheet, its characterized in that: including roof and elastic arm, the both sides of roof are connected with respectively the elastic arm, the elastic arm is kept away from the one end of roof is connected with the welding part, the roof encloses into one with two elastic arm three and holds the chamber, be equipped with on the roof and stretch into hold the bellying in chamber.

2. The shrapnel of claim 1, characterized in that: the elastic arm or the top plate is provided with a suction area.

3. The shrapnel of claim 2, characterized in that: the two sides of the convex part are respectively provided with the suction areas.

4. The shrapnel of claim 1, characterized in that: the bulge is a stamping structure formed by stamping.

5. The shrapnel of claim 1, characterized in that: the bottom surfaces of the welding parts are arranged in a coplanar mode.

6. The shrapnel of claim 1, characterized in that: the elastic arm is in a snake shape as a whole.

7. The shrapnel of claim 6, characterized in that: the elastic arm comprises a first elastic force arm, a first arc-shaped force arm, a second elastic force arm and a second arc-shaped force arm which are sequentially connected, the first elastic force arm is far away from one end of the first arc-shaped force arm and is connected with the top plate, and the second arc-shaped force arm is far away from one end of the second elastic force arm and is connected with the welding part.

8. The shrapnel of claim 7, characterized in that: the width of the first elastic force arm is gradually increased from one end close to the top plate part to one end close to the first arc-shaped force arm.

9. The shrapnel of claim 1, characterized in that: the elastic sheet is of an integrated structure formed in an integrated mode.

10. Switch module, including wiring substrate and the components and parts of locating on wiring substrate, its characterized in that: the elastic sheet of any one of claims 1 to 9, wherein the elastic sheet is welded and conducted with the wiring substrate through a welding part, and the component is located in the accommodating cavity and arranged corresponding to the protruding part.