CN201222723Y - Induction type slide key-press switch structure for mobile phone - Google Patents

Abstract

The utility model provides a sensing type structure of a sliding button switch for a cell phone, wherein a wiring copper-clad layer is arranged on the top surface of a circuit board, a sensing area is formed, a touching lug is arranged on the sensing area, the touching lug is a two-dimension sliding bar structure, namely a plurality of pairs of metallic pieces are arranged on the touching lug in parallel, each pair of the metallic pieces forms a capacitor corresponding to two adjacent metallic pieces, guide grooves for allowing sliding bar conductive bodies to move from the top to down or from the left to the right are arranged surrounding the metallic pieces, and each of the metallic pieces is electrically connected with a chip of the sensor through wiring inside the circuit board. The structure realizes the function of sliding the button in the left and right direction and the up and down direction, has no mechanical contact structure and effectively solves the insensitiveness of the switch after the fatigue use, a user can browse the menu through vertically holding the cell phone and can browse the text pages with wide size through crossly holding the cell phone, and the function can realize that the users turn the pages in the up direction and the down direction to search the catalogs and other complex work.

Description

The structure that is used for the induction type slip key switch of mobile phone

Technical field

The utility model relates to a kind of touch-induction-type slip key switch product structure that is used for mobile phone.

Background technology

The button that present mobile phone uses is the mechanical type key switch; Make the mechanical contact closure by finger to key press, thus the switch command of providing; Key switch and function be for corresponding one by one, frequency height during usage operation; There is certain fatigue life the mechanical switch contact, and access times overstep the extreme limit, and the insensitive problem of electric contact often occurs; Present high-end type mobile phone adopts big screen display screen, the button that need slide when browsing literary composition page or leaf and menu, and mechanical type press-key structure complexity takies the mobile phone confined space, and in addition, button uses for a long time, and the indication icon wearing and tearing of surface printing are very fast, and outward appearance is indecency.

Summary of the invention

The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of touch-induction-type slip key switch product structure that is used for mobile phone is provided.

The purpose of this utility model is achieved through the following technical solutions:

The structure that is used for the induction type slip key switch of mobile phone, the copper layer is covered in end face wiring at wiring board, form induction zone, the touch boss is arranged on the induction zone, characteristics are: touching boss is two-dimentional slider bar structure, promptly touch distribute side by side on the boss many to sheet metal, two adjacent metal sheets of every pair of sheet metal correspondence, formation one electric capacity, be provided with the gathering sill that slides up and down for the slider bar electric conductor around sheet metal, each sheet metal all is electrically connected by wiring board internal wiring and sensor chip; When the slider bar electric conductor near the pair of metal sheet, just between sheet metal and electric conductor, constitute new electric capacity, by detecting the capacitance change between sheet metal, realize transmitting induced signal.

Further, the structure of the above-mentioned induction type slip key switch that is used for mobile phone, described wiring board is electronic circuit board or flexible electronic wiring board.

The utility model modern design, do not have mechanical contact structure, about realization and up and down the slip keypress function of both direction efficiently solves the insensitive problem of tired back switch of using, the user can erect the machine navigate through menus of shaking hands in use, also can the horizontal machine of shaking hands browse the wide literary composition page or leaf of breadth, with this function realize user up and down and the both direction page turning search loaded down with trivial details work such as catalogue, simplification user's operational motion, the keytop printing is not easy to wear, simple for structure, easy to assembly, very practical.

Description of drawings

Below in conjunction with accompanying drawing technical solutions of the utility model are described further:

Fig. 1: the structural representation of the utility model touch sensible;

Fig. 2: the utility model slider bar layout schematic diagram.

The 1-sheet metal, 2-slider bar electric conductor.

Embodiment

The structure that is used for the induction type slip key switch of mobile phone, as Fig. 1～2, the copper layer is covered in end face wiring at electronic circuit board (PCB) or flexible electronic wiring board (FPC), form induction zone, the touch boss is arranged on the induction zone, touching boss is two-dimentional slider bar structure, promptly touch distribute side by side on the boss many to sheet metal 1, two adjacent metal sheets of every pair of sheet metal correspondence, formation one electric capacity, be provided with the gathering sill that slides up and down for slider barelectric conductor 2 around sheet metal 1, each sheet metal all is electrically connected by wiring board internal wiring and sensor chip; When slider barelectric conductor 2 during near pair of metal sheet 1, just between sheet metal and electric conductor, constitute new electric capacity, by detecting the capacitance change between sheet metal, transmit induced signal, thereby, the slip keypress function of both direction about realization and up and down.

Each induction zone boss (PAD) is electrically connected by PCB internal wiring and PSoC sensor chip (the programmable system on chip chip with numeral and simulation mixed processing ability), to read induced signal, carries out signal processing; Touch signal can be capacitance, inductance value, resistance value etc.

The citation form of capacitance switch is two adjacent metal sheets, constitutes a little electric capacity between two, and switch designs becomes to make the capacitance between two metal sheets as far as possible little.When an electric conductor near this to sheet metal, between each sheet metal and electric conductor, all will constitute new electric capacity, by detecting the electric capacitance change between the two metal sheets, just can transmit induced signal.Fig. 1 as seen, a plurality of putting together side by side just can be realized the function of slider bar (slider), shown in Figure 2, the capacitance variations of each sheet metal of sensing in order, slider bar only need guarantee that when layout finger can cover simultaneously or approaching at least two sheet metals, the variation tendency that can present a male-type like this on the count value curve can accurately calculate the center of current finger by interpolation algorithm; And the direction of slip and the input information that displacement promptly changes into the user are promptly pointed in the variation of position; As form with both direction slider bar structure that matrix structure can be realized up and down and about read the induction amount variation.The user can erect the machine navigate through menus of shaking hands in use, also can browse the wide literary composition page or leaf of breadth by the horizontal machine of shaking hands; With this function can realize the user up and down and the both direction page turning search loaded down with trivial details work such as catalogue, simplification user's operational motion.

What need understand is: though the foregoing description is to the utility model detailed explanation of contrasting; but these explanations are just illustrative to the utility model; rather than to restriction of the present utility model; any innovation and creation that do not exceed in the utility model connotation all fall in the protection range of the present utility model.

Claims (2)

1. the structure that is used for the induction type slip key switch of mobile phone, the copper layer is covered in end face wiring at wiring board, form induction zone, the touch boss is arranged on the induction zone, it is characterized in that: touching boss is two-dimentional slider bar structure, promptly touch distribute side by side on the boss many to sheet metal, two adjacent metal sheets of every pair of sheet metal correspondence, formation one electric capacity, be provided with the gathering sill that slides up and down for the slider bar electric conductor around sheet metal, each sheet metal is electrically connected by wiring board internal wiring and sensor chip.

2. the structure that is used for the induction type slip key switch of mobile phone according to claim 1 is characterized in that: described wiring board is electronic circuit board or flexible electronic wiring board.

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