CN215581304U

CN215581304U - Mobile phone side key fixing structure

Info

Publication number: CN215581304U
Application number: CN202121648613.8U
Authority: CN
Inventors: 吴斌
Original assignee: SHENZHEN CHINO-E COMMUNICATION CO LTD
Current assignee: SHENZHEN CHINO-E COMMUNICATION CO LTD
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-01-18
Anticipated expiration: 2031-07-19

Abstract

A mobile phone side key fixing structure comprises a shell, side keys and a supporting plate; the shell is hollow and is provided with an insertion hole communicated with the interior of the shell on the side surface; the side key is inserted from the outer side of the shell through the insertion hole, the support plate is clamped with the side key at the inner side of the shell, and when the side key moves towards the outer side of the shell, the support plate is abutted against the inner side of the shell; the support plate is a PC plastic piece. Compared with the prior art, the mobile phone side key fixing structure can reduce the cost of a mould and improve the pressing hand feeling.

Description

Mobile phone side key fixing structure

Technical Field

The utility model relates to the technical field of mobile terminals, in particular to a mobile phone side key fixing structure.

Background

In modern society, mobile phones are increasingly popular in life because they are convenient to carry and can communicate with the outside anywhere. Referring to fig. 1, in order to conveniently control the volume of the mobile phone, turn on or off the mobile phone, or implement other functions, a control key 200 is generally disposed on a side surface of a mobile phone housing 100, and a user presses the control key 200 and triggers an FPC circuit board, thereby implementing control of the mobile phone.

In order to prevent the control keys 200 from falling off the mobile phone case 100, the control keys 200 need to be fixed. Referring to fig. 2, a side key fixing structure of a mobile phone in the prior art includes a mobile phone shell 100, a control key 200, a key holder 300 and an FPC board 400. The control keys 200 are inserted into through holes on the side of the mobile phone shell 100 and contact with the FPC board 400 inside the mobile phone shell 100, and the key holder 300 is located between the FPC board 400 and the mobile phone shell 100 and is engaged with the control keys 200. The key holder 300 is provided with a fixing plate 301 and a mounting plate 302 having plate surfaces parallel to each other and having a gap. The plate surface of the fixing plate 301 is perpendicular to the pressing direction of the control key 200, and is provided with a detent (not shown) for engaging with the control key 200. The mounting plate 302 is provided with screw holes (not shown) which are inserted into the screw holes of the mounting plate 302 and mount the key holder 300 to the handset case 100. The key support 300 is a sheet metal part, the cost of the die is high, the dimensional tolerance is large in the continuous punching forming process, and the installation is easy to realize the gap between the control key 200 and the control key 200, so that the control key 200 cannot be fixed and falls off, and the linkage between the control key 200 and the control key is poor, so that the hand feeling is weak.

SUMMERY OF THE UTILITY MODEL

Accordingly, the present invention is directed to a side key fixing structure of a mobile phone to reduce the cost of a mold and enhance the pressing feeling.

The utility model is realized by the following technical scheme:

a mobile phone side key fixing structure comprises a shell, side keys and a supporting plate; the shell is hollow and is provided with an insertion hole communicated with the interior of the shell on the side surface; the side key is inserted from the outer side of the shell through the insertion hole, the support plate is clamped with the side key at the inner side of the shell, and when the side key moves towards the outer side of the shell, the support plate is abutted against the inner side of the shell; the support plate is a PC plastic piece.

Compared with the prior art, the mobile phone side key fixing structure disclosed by the utility model has the advantages that the side keys are fixed by the support plate made of PC plastic, and the cost of a die is greatly reduced compared with a sheet metal part which needs continuous die stamping forming. And the precision obtains improving greatly, and the backup pad is along with the linkage of side button, because of size fluctuation to pressing the influence of feeling when reducing the sheet metal component.

Furthermore, a clamping opening is formed in the supporting plate; the clamping opening is formed by connecting two opposite short sides and a long side along the projection in the direction perpendicular to the surface of the supporting plate, the long side is connected between the two short sides, and the long side is perpendicular to the short sides; the clamping opening and the side key are in interference fit. The mode installation that uses the block is simple, and interference fit can guarantee moreover that the backup pad removes along with the side button.

Further, a gap of 0.05mm is formed between the side key and the insertion hole so as to facilitate pressing.

Further, along the perpendicular to backup pad face direction projection, still be connected with the arch on the long limit of joint mouth, protruding to the distance on long limit is less than the length of minor face to support the side button when pressing, be convenient for it kick-backs.

Furthermore, the circuit board is positioned in the shell and is in contact with the side keys.

Further, the support plate further comprises a springback part which is a boss arranged on the support plate, and the opening of the springback part faces the circuit board; in the direction perpendicular to the supporting plate, the projection area of the opening of the springback part is larger than that of the bottom of the springback part, so that one side of the side key is pressed to be better restored to the original shape under the action of elastic deformation.

For a better understanding and practice, the utility model is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a front view of a prior art handset;

fig. 2 is a schematic diagram of a side key fixing structure of a mobile phone in the prior art;

FIG. 3 is a schematic view of a side key fixing structure of a mobile phone according to the present invention;

FIG. 4 is a front view of a support plate in an embodiment of the present invention;

fig. 5 is a schematic view of a support plate in another embodiment of the utility model.

Detailed Description

Specifically, referring to fig. 3, the side key fixing structure of the mobile phone of the present invention includes a hollow housing 10, a plurality of side keys 20, a circuit board 30 and a supporting plate 40. An insertion hole 11 is formed in one side surface of the housing 10, and the insertion hole 11 is communicated with the inside of the housing 10. The circuit board 30 is disposed inside the housing 10. The side key 20 is inserted into the insertion hole 11 and contacts the circuit board 30. The supporting plate 40 is a PC plastic member, and the plate surface thereof is perpendicular to the insertion direction of the side key 20. The plate surface of the supporting plate 40 is provided with a plurality of clamping openings 41, each clamping opening 41 is clamped with one side key 20, and each side key 20 and the supporting plate 40 are mutually propped to limit the supporting plate 40 to move along the direction parallel to the plate surface in a dislocation way. The support plate 40 extends to the outside of the insertion hole 11 in a projection perpendicular to the plate surface direction of the support plate 40, the support plate 40 moves with the pressing of the side key 20, and the support plate 40 abuts against the inner side surface of the housing 10, thereby preventing the side key 20 from falling off from the insertion hole 11. In addition, when the side key 20 is pressed, the supporting plate 40 moves along with the side key 20 and rebounds due to the friction force, thereby enhancing the pressing feeling. The gap between the side key 20 and the insertion hole 11 is 0.05 mm. Preferably, the side key 20 and the engaging opening 41 are in interference fit.

Referring to fig. 4, in the present embodiment, the number of the engaging openings 41 on the supporting plate 40 is two. Along the perpendicular to the projection of the supporting plate 40, each engaging opening 41 is formed by connecting two opposite short sides 411 and a long side 412 located between the two short sides 411, and the short sides 411 are perpendicular to the long side 412. The side key 20 is sandwiched by two short edges 411. Further, a protrusion 413 located between the two short sides 411 is connected to a long side of the engaging opening 41, and a distance from the protrusion 413 to the long side is smaller than a length of the short side 411. When the side key 20 with a longer length is used, the bulge 413 partially supports the side key 20, so that the situation that the circuit board 30 is damaged due to the fact that the pressing force is too large is reduced, and the side key 20 is pushed to rebound.

Further, referring to fig. 5, the supporting plate 40 is further provided with a resilient portion 42, and the resilient portion 42 is a deformable boss disposed on the surface of the supporting plate 40 and opens toward the circuit board 30. In a direction perpendicular to the support plate 40, a projected area of the rebound opening is larger than a projected area of the bottom thereof. In one embodiment, the cross-sectional shape of the resilient portion 42 is trapezoidal when projected along the short side 411 and parallel to the board surface direction of the supporting board 40, and the short side is located on the side far away from the circuit board 30. In another embodiment, the cross-sectional shape of the resilient portion 42 is a wave shape formed by connecting a plurality of semi-circular arc ends, and the semi-circular arc ends are opened toward the circuit board 30. When one side of one side key 20 is pressed towards the circuit board 30, part of the supporting plate 40 connected with the side key 20 moves along with the side key 20, and the other part of the supporting plate 40 connected with the side key 20 which is not pressed does not move, so that the rebound part 42 is elastically deformed, and after the pressing force disappears, the rebound part 42 restores the original shape and helps the side key 20 rebound.

Compared with the prior art, the mobile phone side key fixing structure is low in mould cost, good in pressing hand feeling and convenient to install, and can help the side keys to rebound when pressed.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The utility model provides a cell-phone side button fixed knot constructs which characterized in that: comprises a shell, a side key and a support plate; the shell is hollow and is provided with an insertion hole communicated with the interior of the shell on the side surface; the side key is inserted from the outer side of the shell through the insertion hole, the support plate is clamped with the side key at the inner side of the shell, and when the side key moves towards the outer side of the shell, the support plate is abutted against the inner side of the shell; the support plate is a PC plastic piece.

2. The mobile phone side key fixing structure of claim 1, wherein: the supporting plate is provided with a clamping opening; the clamping opening is formed by connecting two opposite short sides and a long side along the projection in the direction perpendicular to the surface of the supporting plate, the long side is connected between the two short sides, and the long side is perpendicular to the short sides; the clamping opening and the side key are in interference fit.

3. The mobile phone side key fixing structure of claim 2, wherein: and a gap of 0.05mm is reserved between the side key and the insertion hole.

4. The mobile phone side key fixing structure of claim 2, wherein: along the perpendicular to backup pad face direction projection, still be connected with the arch on the long limit of joint mouth, protruding to the distance on long limit is less than the length of minor face.

5. The mobile phone side key fixing structure of claim 4, wherein: the circuit board is positioned in the shell and is in contact with the side keys.

6. The mobile phone side key fixing structure of claim 5, wherein: the support plate further comprises a springback part which is a boss arranged on the support plate, and the opening of the springback part faces the circuit board; in the direction perpendicular to the supporting plate, the projection area of the opening of the springback part is larger than that of the bottom of the springback part.