CN2921943Y

CN2921943Y - Contact keyboard

Info

Publication number: CN2921943Y
Application number: CN 200620092092
Authority: CN
Inventors: 王鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-13
Filing date: 2006-07-13
Publication date: 2007-07-11
Anticipated expiration: 2016-07-13

Abstract

The utility model discloses a contact keyboard, which comprises a general mechanical keyboard key array structure, a keyboard chip and a key slot, and is characterized in that comprising a contact amplifying circuit/key element circuit arranged in the keyboard, an external assistant circuit unit, wherein, the key slot is arranged on the surface of the contact keyboard, contact keys are arranged in each key slot and the contact keys comprises a key element and/or key comprising a metal key and b metal key. Compared with the mechanical keyboard, the contact keyboard has the advantages of long life-span, small volume, thin shape, flexible operation, convenient use, labor-saving, easy clean, waterproof, portable and modern, novel and health care computer peripheral device products.

Description

Touch keyboard

Technical field

The utility model relates to a kind of computing machine external input device, more particularly, relates to a kind of health care, durable hyper thin tactile keyboard.

Background technology

Along with the development of modern computer, keyboard has become indispensable ingredient.Keyboard the earliest appeared at the beginning of the 17th century, and the not overripened typewriter of form has been invented in Europe at that time just someone, and keyboard is applied on these typewriters.Coming years, people design useful form modern typewriter and first standard the keyboard basic configuration, present " QWERTY " keyboard has promptly appearred.Afterwards, More spy (LillianMalt) designed again than " DUORAK " keyboard more rationally, " MALT " keyboard efficiently.More spy has changed staggered originally keyboard ranks, " back spacer " (Backspace) and other originally contact away from the key at keyboard center is easier, the frequency of utilization of thumb is also higher during typewriting.

In the very long evolution of keyboard, the profile of keyboard and control idea change little, and its using method all is that armrest refers to knock key usually, character occurs through touching switch behind one section mechanical trip.Since the existence of mechanical trip and keycap, so present keyboard is all more thick and heavy, the mfg. moulding die more complicated.In the mechanical process of frequency key pressing, thereby the keyboard leather cup occurs easily wearing out, breaks and reduced the life-span of keyboard, and at present keyboard to exist form single, volume is bigger, thick, serviceable life short, clean and carry the problem of inconvenience.

Summary of the invention

The purpose of this utility model is exactly the shortcoming at existing traditional mechanical formula keyboard, has proposed a kind of touch keyboard, and its technical solution is achieved in that

A kind of touch keyboard comprises standard machinery formula keyboard arranged type structure, keyboard chip and keyway, it is characterized in that also comprising the touch amplifying circuit and/or the Key element circuit that are arranged in the keyboard; Also comprise the peripheral support circuit unit; Described keyway is arranged on the touch keyboard surface, is provided with touch key-press in each keyway; Described touch key-press can be made of the button that Key element and/or a metal key-press are formed with the b metal key-press; Be provided with patch light-emitting diode at the inboard facade of each keyway; Wherein said touch amplifying circuit is made up of described keyboard chip and paster triode array; Described Key element circuit is by described keyboard chip and Key element; Described Key element comprises touch sensible metal, Chip-R, does not encapsulate triode, substrate, patch capacitor in the Key element, do not encapsulate diode and realize that by internal bus electrical equipment links together and the element that the water proof rubber circle is constituted is housed.

Described paster triode array and described keyboard chip can also be packaged together, and form the touch keyboard control chip.

Described touch keyboard peripheral support circuit unit is arranged in described USB or the PS/2 plug box, and described plug box also comprises described USB or PS/2 plug, reel, lead and paster electrochemical capacitor.

Described touch keyboard can also pass through the wireless radio interface circuit, realizes the wireless connections of touch keyboard and computer.

By above-mentioned two kinds of technical schemes, the utility model has been constructed a kind of touch keyboard.Adopt SC83053 or other model chips as the keyboard process chip; Realize touching principle with two kinds of schemes, constitute the touch keyboard circuit with organic the linking together of keyboard process chip; The peripheral support circuit element of chip all adopts surface mount elements, fully saves the space; Keyboard power filtering paster electrochemical capacitor is arranged in USB or the PS/2 plug box; At last with 4 core flexible circuit conductor connecting key disc main body and the plug boxes of being with shielding line.Compare with the traditional mechanical keyboard, the utility model touch keyboard has that volume is little, thin thickness, long service life, good looking appearance, easy cleaning, waterproof and convenient carrying.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model touch keyboard overall appearance synoptic diagram;

Fig. 2 is that the A-A of Fig. 1 is to phantom view;

Fig. 3 is the cut-away view of the touch amplifying circuit of touch keyboard;

Fig. 4 is the circuit theory diagrams of the touch amplifying circuit of touch keyboard;

Fig. 5 is the cut-away view of the Key element circuit of touch keyboard;

Fig. 6 is the front view of Key element;

Fig. 7 is the vertical view of Key element;

Fig. 8 be among Fig. 6 B-B to phantom view;

Fig. 9 be among Fig. 7 C-C to part portion view;

Figure 10 is the circuit theory diagrams of the Key element circuit of touch keyboard;

Figure 11 is the front view of plug box in the utility model;

Figure 12 is the vertical view of plug box in the utility model;

Figure 13 is that E-E among Figure 12 is to phantom view;

Figure 14 is that D-D among Figure 11 is to phantom view;

Among the figure: 1, touch keyboard main body 2, keyway 3, touch key-press 4, patch light-emitting diode 5, keyboard chip 6, power light (Scroll) 7, capitalization pilot lamp (Caps) 8, paster triode array 9, Chip-R 10, wiring board 11, a metal key-press 12, b metal key-press 13, keyboard table panel 14, keyboard bottom panel 15, button touches circuit Figure 16, keyboard chip and outer member circuit Figure 17, Key element 18, touch sensible metal 19, water proof rubber circle 20, pin line 21 in the element, Key element shell 22, Chip-R 23, direct insertion Key element pin 24, do not encapsulate triode 25, substrate 26 in the Key element, patch capacitor 27, do not encapsulate diode 28, Key element internal circuit Figure 29, plug box 30, end housing 31 on the plug box, go out wire loop 32, USB or PS/2 plug 33, end housing 34 under the plug box, reel 35, lead 36, the paster electrochemical capacitor

Embodiment

The utility model touch keyboard overall appearance synoptic diagram as shown in Figure 1 and Figure 2, among the figure, touch keyboard main body outward appearance comprises touch keyboard main body 1, keyway 2, touch key-press 3 and patch light-emitting diode 4.Light emitting diode 4 can be located on the inboard facade of each keyway 2, just has the light flicker like this during button.

As Figure 11 plug box structure to the utility model shown in Figure 14, in conjunction with Figure 13 in Figure 12 E-E D-D in Figure 11 illustrates to phantom view to phantom view and Figure 14.Among the figure, USB or PS/2 plug 32 directly are plugged among the USB or PS/2 slot of notebook computer, and anti-interference paster electrochemical capacitor 36 is arranged in the plug box 29; Reel 34 can pilot 35 length.Lead 35 is by on the wiring board 10 that goes out wire loop 31 and be connected the touch keyboard main body.

Embodiment 1:

The cut-away view of touching amplifying circuit that the utility model touch keyboard touches as shown in Figure 3, Figure 4.Among the figure, keyboard chip 5, power light (Scroll) 6, capitalization pilot lamp (Caps) 7, paster triode array and Chip-R 9 are welded on the circuit board 10, again a metal key-press 11 and b metal key-press 12 are installed and be welded on the circuit board 10, connect 4 core flexible circuit conductors and connect and USB or PS/2 plug box 29.Seal up keyboard table panel 13 and keyboard bottom panel 14 at last, constitute the touch keyboard of touch key-press 3 parting formulas like this.Wherein paster triode array 8 can be made chip and be packaged into a new chip---touch keyboard control chip with the nude film of keyboard chip 5 again.

The circuit theory diagrams of the touch amplifying circuit of the utility model touch keyboard as shown in Figure 4.Among the figure, the amplification electron switch of paster triode array 8 suitable each touch key-press 3 that frame is 15 li, wherein J1 ~ J114 end is connected on respectively on a metal key-press 11 of each touch key-press 3; The b metal key-press 12 of each touch key-press 3 all is connected on the VCC.When the staff finger tip touches a metal key-press 11 and b metal key-press 12 simultaneously, human body resistance is with regard to the suitable inclined to one side value resistance of one of them triode on the finger tip, a corresponding line (in 1 ~ 8) and an alignment (among A ~ R) on 16 li keyboard chips 5 of frame have been connected in just conducting of this triode like this.Realized the appearance of character on display.

Embodiment 2:

The cut-away view of the Key element circuit of the utility model touch keyboard as shown in Figure 5.Among the figure, keyboard chip 5, power light (Scroll) 6, capitalization pilot lamp (Caps) 7, Key element 17 and Chip-R 9 are welded on the circuit board 10, connect 4 core flexible circuit conductors and connect and USB or PS/2 plug box 29.Seal up keyboard table panel 13 and keyboard bottom panel 14 at last, constitute touch key-press 3 like this and be holistic touch keyboard.Wherein Key element 17 is key elements, realizes touch function by it.

As the structural drawing of Fig. 6-the utility model touch keyboard Key element 17 shown in Figure 9, illustrate to phantom view to phantom view, Fig. 9 C-C in Fig. 7 in conjunction with Fig. 8 B-B in Fig. 6.Among the figure, the outer water proof rubber circle 19 that prevents the keyboard water inlet that is with of Key element 17; There is Chip-R 22 inside of Key element 17, does not encapsulate triode 24, patch capacitor 26, do not encapsulate substrate 25 in diode 27 and the Key element, with the interior pin line 20 of element element and direct insertion Key element pin 23 is coupled together; Outside with 21 encapsulation of Key element shell, be provided with touch sensible metal 18 at Key element 17 tops and also connect with pin line in the element 20.So just constitute one independently, had the Key element 17 of touch function.

The circuit theory diagrams of the Key element circuit of the utility model touch keyboard as shown in figure 10.Among the figure, frame is the circuit theory diagrams of Key element 17 for 28 li, and its principle of work is when touch sensible metal 18 is not contacted by finger, triode T1 saturation conduction, and its collector potential reduction ends triode T2, and keyboard chip 5 is not worked; When touch sensible metal 18 is contacted by finger, the human-induced signal amplifies through triode T1, diode D rectification, capacitor C filtering, make triode T2 conducting, connected a corresponding line (in 1 ~ 8) and an alignment (among A ~ R) on 16 li keyboard chips 5 of frame this moment.So just realized the appearance of character on display by a plurality of Key elements 17.Wherein R1 is anti-discharge interference resistance.

Using method is: similar to the common keyboard operation, symbol will appear on the display finger tip on the keyboard as long as touch gently.Finger tip does not need dynamics when knocking keyboard like this, can effectively prevent because the tired muscle tendonitis that causes.

Adopt the utility model touch keyboard volume ultra-thin, physical dimension (long * wide * thick) only is: 300mm * 160mm * 2.5mm.Size can suitably change according to actual conditions.

The utility model also can adopt the radio frequency technology to realize wireless touch keyboard, and its mode is selected chip for use by radio-frequency transmissions being set and accepting circuit between touch keyboard and USB or PS/2 plug, realize wireless telecommunications.

The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and inventive concept thereof, all should be encompassed within the protection domain of the present utility model.

Claims

1, a kind of touch keyboard comprises standard machinery formula keyboard arranged type structure, keyboard chip (5) and keyway (2), it is characterized in that also comprising the touch amplifying circuit and/or the Key element circuit that are arranged in the keyboard; Also comprise the peripheral support circuit unit; Described keyway (2) is arranged on the touch keyboard surface, is provided with touch key-press (3) in each keyway; Described touch key-press (3) can be made of the button that Key element (17) and/or a metal key-press (11) are formed with b metal key-press (12); Be provided with patch light-emitting diode (4) at the inboard facade of each keyway (2); Wherein said touch amplifying circuit is made up of described keyboard chip (5) and paster triode array (8); Described Key element circuit is by described keyboard chip (5) and Key element (17); Described Key element (17) comprises touch sensible metal (18), Chip-R (22), does not encapsulate triode (24), substrate (25), patch capacitor (26) in the Key element, do not encapsulate diode (27) and realize that by internal bus electrical equipment links together and the element that water proof rubber circle (19) is constituted is housed.

2, according to the described touch keyboard of claim 1, it is characterized in that described paster triode array (8) and described keyboard chip (5) can also be packaged together, form the touch keyboard control chip.

3, according to the described touch keyboard of claim 1, it is characterized in that described touch keyboard peripheral support circuit unit is arranged at described USB or PS/2 plug box (29) lining, described plug box (29) also comprises described USB or PS/2 plug (32), reel (34), lead (35) and paster electrochemical capacitor (36).

4,, it is characterized in that described touch keyboard can also pass through the wireless radio interface circuit, realizes the wireless connections of touch keyboard and computer according to the described touch keyboard of claim 1.