A kind of mobile phone side button
Technical field
The utility model relates to mobile phone key technical field, more particularly relates to a kind of mobile phone side button.
Background technology
Along with the progress of technology and more and more higher to the requirement that product design is aesthetic, existing mobile phone requires to do narrower and narrower, do thinner and thinner, existing structure is related to and it is also proposed higher requirement, but in order to ensure the integrality of mobile phone side keypress function in prior art, generally all in the inner side of the flexible PCB of mobile phone side button, reinforcement will be installed, which increase the thickness of mobile phone side button, thickness, generally at about 1.0mm, directly has influence on the size of mobile phone at Width, and complete machine width is increased.
Utility model content
For solving above-mentioned the problems of the prior art, the utility model provides a kind of mobile phone side button, by arranging touch-switch on flexible PCB, touch-switch arranges physical button, thus the thickness of this mobile phone side button is reduced.
The technical solution adopted in the utility model is: a kind of mobile phone side button, and it is arranged in mobile phone shell, and this mobile phone side button comprises:
Flexible PCB, described flexible PCB is electrically connected with cell phone mainboard;
At least one touch-switch, described touch-switch is located on described flexible PCB;
And correspondence is installed on the physical button on described touch-switch, by the physical button pressed on described touch-switch, flexible PCB is connected.
Described touch-switch is DOME sheet.
Described DOME sheet is fixed in a soft plastic housing, and is welded on flexible PCB by tin cream, and plastic cement housing is provided with the boss relative with physical button.
The thickness of described mobile phone side button is between 0.7-0.8 millimeter.
Mobile phone shell has the through hole that arrange corresponding to described physical button, described physical button is exposed from described through hole.
Mobile phone side of the present utility model button, by arranging touch-switch on flexible PCB, touch-switch arranges physical button, thus the thickness of this mobile phone side button is reduced, decrease the size of mobile phone at Width, complete machine width is reduced.
Accompanying drawing explanation
Fig. 1 is the structure chart of the utility model mobile phone side button.
Embodiment
As shown in Figure 1, the mobile phone side button that the utility model proposes is arranged in mobile phone shell, and this mobile phone side button comprises flexible PCB 1, touch-switch 2 and physical button 3.
Flexible PCB 1 is electrically connected with cell phone mainboard, and touch-switch 2 is located on flexible PCB 1.In the present embodiment, the quantity of touch-switch 2 is three, and each touch-switch correspondence controls different functions.
Physical button 3 correspondence is installed on touch-switch 2, by the physical button on pressing touch-switch, flexible PCB is connected.Mobile phone shell has the through hole that arrange corresponding to physical button 3, physical button 3 is exposed from described through hole, so that user presses physical button with hand.
Touch-switch is DOME sheet (metal clips conducting film), DOME sheet is fixed in a soft plastic housing 4, and be welded on flexible PCB 1 by tin cream, plastic cement housing 4 is provided with the boss 41 relative with physical button 3, when user is by hand pressing physical button 3, boss 41 can be subject to physical button 3 to power thus pressing DOME sheet.
The thickness of mobile phone side of the present utility model button is between 0.7-0.8 millimeter, with install its thickness compared with reinforcement in prior art in the inner side of the flexible PCB of mobile phone side button thin, decrease mobile phone size in the direction of the width, and ensure that the integrality of mobile phone side keypress function.
Above specific embodiment is only in order to illustrate design of the present utility model, and those of ordinary skill in the art can make various deformation and change under design of the present utility model, and these distortion and change include within protection range of the present utility model.