CN104035572A - Infrared keyboard - Google Patents
Infrared keyboard Download PDFInfo
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- CN104035572A CN104035572A CN201410282285.2A CN201410282285A CN104035572A CN 104035572 A CN104035572 A CN 104035572A CN 201410282285 A CN201410282285 A CN 201410282285A CN 104035572 A CN104035572 A CN 104035572A
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- infrared
- button
- broadwise
- array
- transmission array
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Abstract
The invention relates to an infrared keyboard. The infrared keyboard comprises a shell and keys. The keys are restraint to vertically move by guide plates, and magnetic key necks are arranged in the keys. Permanent magnets are distributed on the inner wall of the bottom of the shell and correspond to the keys in position one by one, and the permanent magnets are in homopolar repulsion. A row of infrared emitters and a row of infrared receivers are respectively arranged at the edges of the bottom of the shell to form an infrared transceiving array, and mutually correspond one by one. The infrared transceiving array is coupled to an infrared touch chip, and radial infrared rays and weft infrared rays, generated by the infrared transceiving array, are orthogonally intersected and form an orthogonal-intersection point array. Orthogonal-intersection points in the orthogonal-intersection point array are arranged right below the keys. The keyboard is simple in structure, stable in function and less prone to damages and has longer service life.
Description
Technical field
The present invention relates to a kind of digital product, special, be a kind of keyboard.
Background technology
Common keyboard structure be take double-layer printing circuit sheet as information transmission substrate at present, above has voltage dependent resistor (VDR), and when having pressure-acting, resistance obviously reduces, thus turning circuit, transmission of signal; , making moist, have dust in the situation that, easily there is the situation of button malfunction, line short, button interlock in the keyboard bottom of this structure a lot of electronic components that distribute, and circuit is complicated, is subject to external environmental interference; In addition, this class keyboard adheres to one deck silica gel piece above voltage dependent resistor (VDR), has projection on silica gel piece, and use can cause layer of silica gel projection aging for a long time, and button cannot reset, and seriously reduces the serviceable life of keyboard.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of infrared keyboard, this keyboard structure is simple, function-stable, be difficult to damage, and has longer serviceable life.
For solving the problems of the technologies described above, the technical solution used in the present invention is: this infrared keyboard comprises housing and button; Described button is moved by guide plate constraint in the vertical direction, the described key inside key neck that is magnetic; The inwall of described housing bottom is distributed with permanent magnet, and described permanent magnet position is corresponding one by one with button, and described permanent magnet and key neck homopolar-repulsion; The front and rear side edge of the bottom in described housing, arranges respectively row's infrared transmitter and an infrared receiver, forms warp-wise infrared receiving/transmission array, and the infrared receiver in described warp-wise infrared receiving/transmission array is corresponding one by one with described infrared transmitter; , there is respectively row's infrared transmitter and an infrared receiver at the edge, left and right of the bottom in described housing, forms broadwise infrared receiving/transmission array, and the infrared receiver in described broadwise infrared receiving/transmission array is corresponding one by one with described infrared transmitter; Described warp-wise, broadwise infrared receiving/transmission array are coupled to infrared touch-control chip; The radially infrared ray that described warp-wise, broadwise infrared receiving/transmission array produce and broadwise infrared ray quadrature, and form crossover point array; Each intersection point in described crossover point array is respectively under a button.
The invention has the beneficial effects as follows: in the situation that there is no finger pressure effect, button at magnetic repulsion effect low suspension on housing, key neck and the housing bottom of button leave space, the radially infrared ray that warp-wise, broadwise infrared receiving/transmission array produce and broadwise infrared ray quadrature in space, and forming crossover point array, each intersection point in described crossover point array is respectively under a button; When button is pressed, radially infrared ray and the broadwise infrared ray of the corresponding intersection point of this button of process are interdicted by key neck; When button is upspring reset, continuous through radially infrared ray and the broadwise infrared ray of the corresponding intersection point of this button.The present invention is simple in structure, function-stable; The base plate electronic component of not arranging, not fragile, and be convenient to clean; In signal transduction process, button does not have loss, can extend tenure of use.
As preferably, the described guide plate that constraint button moves is transparent baffle plate, is fixed on housing bottom.
As preferably, the described guide plate that constraint button moves is fixed on key panel, leaves space with housing bottom; Described radially infrared ray and broadwise infrared ray are in described guide plate below.
As preferably, the inner side edge frame apparatus of base has transparent membrane, and effectively waterproof, dust-separation, guarantee the clean of Infrared emitting and receiving sensing element internal environment.
Accompanying drawing explanation
Fig. 1 is the side schematic view of the embodiment mono-of this infrared keyboard.
Fig. 2 is the schematic top plan view of the embodiment mono-of this infrared keyboard.
Fig. 3 is the schematic diagram of the embodiment bis-of this infrared keyboard.
embodiment:
Embodiment mono-
In the embodiment mono-shown in Fig. 1, Fig. 2, this infrared keyboard comprises housing and button 1; Described button 1 is moved by guide plate 2 constraint in the vertical directions, and described guide plate 2 is transparent baffle, is fixed on housing bottom; The described button 1 inside key neck 11 that is magnetic; The inwall 6 of described housing bottom is distributed with permanent magnet 8, and described permanent magnet 8 positions are corresponding one by one with button 1, and described permanent magnet 8 and key neck 11 homopolar-repulsions; The front and rear side edge of the bottom in described housing, one row's infrared transmitter 51 and infrared receiver 52 are set respectively, form warp-wise infrared receiving/transmission array 72, the infrared receiver 52 in described warp-wise infrared receiving/transmission array 72 is corresponding one by one with described infrared transmitter 51; The edge, left and right of the bottom in described housing, there are respectively row's infrared transmitter 41 and infrared receiver 42, form broadwise infrared receiving/transmission array 71, the infrared receiver 42 in described broadwise infrared receiving/transmission array 71 is corresponding one by one with described infrared transmitter 41; Described warp-wise, broadwise infrared receiving/transmission array are coupled to infrared touch-control chip; The radially infrared ray 72 that described warp-wise, broadwise infrared receiving/transmission array produce and broadwise infrared ray 71 quadratures, and form crossover point array; Each intersection point 70 in described crossover point array is respectively under a button 1.
In the situation that there is no finger pressure effect, button 1 at magnetic repulsion effect low suspension on housing, key neck 11 and the housing bottom of button leave space, the radially infrared ray that warp-wise, broadwise infrared receiving/transmission array 72,71 produce and broadwise infrared ray quadrature in space, and forming crossover point array, each intersection point 70 in described crossover point array is respectively under a button 1; When button 1 is pressed, the radially infrared ray of the corresponding intersection point of this button of process and broadwise infrared ray are by 11 blockings of key neck; When button 1 is upspring reset, continuous through radially infrared ray and the broadwise infrared ray of this button 1 corresponding intersection point.The present invention is simple in structure, function-stable; The base plate electronic component of not arranging, not fragile, and be convenient to clean; In signal transduction process, button does not have loss, can extend tenure of use.
Embodiment bis-
In the embodiment bis-described in Fig. 3, different from embodiment mono-: the guide plate 2 in the present embodiment is fixed on key panel, leave space with housing bottom, the radially infrared ray that warp-wise, broadwise infrared receiving/transmission array 72,71 produce and broadwise infrared ray quadrature in this space, and forming crossover point array, each intersection point 70 in described crossover point array is respectively under a button 1; The present embodiment is different from the guide plate structure of embodiment mono-, but plays same effect; Meanwhile, edge 3 devices of housing have transparent membrane, and effectively waterproof, dust-separation, guarantee the clean of infrared transmitter and infrared receiver internal environment.
Claims (4)
1. an infrared keyboard comprises shell and button (1); This infrared keyboard comprises housing and button (1); Described button (1) is moved by guide plate (2) constraint in the vertical direction, it is characterized in that: described button (1) the inside key neck (11) that is magnetic; The inwall of described housing bottom (6) is distributed with permanent magnet (8), and described permanent magnet (8) position is corresponding one by one with button (1), and described permanent magnet (8) and key neck (11) homopolar-repulsion; The front and rear side edge of the bottom in described housing, one row's infrared transmitter (51) and infrared receiver (52) are set respectively, form warp-wise infrared receiving/transmission array (72), the infrared receiver (52) in described warp-wise infrared receiving/transmission array (72) is corresponding one by one with described infrared transmitter (51); The edge, left and right of the bottom in described housing, there are respectively row's infrared transmitter (41) and infrared receiver (42), form broadwise infrared receiving/transmission array (71), the infrared receiver (42) in described broadwise infrared receiving/transmission array (71) is corresponding one by one with described infrared transmitter (41); Described warp-wise, broadwise infrared receiving/transmission array are coupled to infrared touch-control chip; The radially infrared ray (72) that described warp-wise, broadwise infrared receiving/transmission array produce and broadwise infrared ray (71) quadrature, and form crossover point array; Each intersection point (70) in described crossover point array is respectively under a button (1).
2. infrared keyboard according to claim 1, is characterized in that: the mobile guide plate (2) of described restriction button (1) is transparent baffle plate, is fixed on housing bottom.
3. infrared keyboard according to claim 1, is characterized in that: the mobile guide plate (2) of described restriction button (1) is fixed on key panel, leaves space with housing bottom, and described radially infrared ray and broadwise infrared ray are in described guide plate (2) below.
4. infrared keyboard according to claim 1, is characterized in that: the inner side edge frame apparatus of base has transparent membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410282285.2A CN104035572A (en) | 2014-06-23 | 2014-06-23 | Infrared keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410282285.2A CN104035572A (en) | 2014-06-23 | 2014-06-23 | Infrared keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104035572A true CN104035572A (en) | 2014-09-10 |
Family
ID=51466371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410282285.2A Pending CN104035572A (en) | 2014-06-23 | 2014-06-23 | Infrared keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104035572A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861636A (en) * | 2017-12-08 | 2018-03-30 | 宁波得晴电器科技有限公司 | Multi-Function Keyboard |
| CN107943308A (en) * | 2017-12-08 | 2018-04-20 | 宁波得晴电器科技有限公司 | The application method of Multi-Function Keyboard |
| CN112927443A (en) * | 2019-12-06 | 2021-06-08 | 中国移动通信集团重庆有限公司 | Random key implementation method and device of laser matrix keyboard and upper computer |
-
2014
- 2014-06-23 CN CN201410282285.2A patent/CN104035572A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861636A (en) * | 2017-12-08 | 2018-03-30 | 宁波得晴电器科技有限公司 | Multi-Function Keyboard |
| CN107943308A (en) * | 2017-12-08 | 2018-04-20 | 宁波得晴电器科技有限公司 | The application method of Multi-Function Keyboard |
| CN112927443A (en) * | 2019-12-06 | 2021-06-08 | 中国移动通信集团重庆有限公司 | Random key implementation method and device of laser matrix keyboard and upper computer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140910 |