CN203773478U - Computer keyboard - Google Patents
Computer keyboard Download PDFInfo
- Publication number
- CN203773478U CN203773478U CN201320890243.8U CN201320890243U CN203773478U CN 203773478 U CN203773478 U CN 203773478U CN 201320890243 U CN201320890243 U CN 201320890243U CN 203773478 U CN203773478 U CN 203773478U
- Authority
- CN
- China
- Prior art keywords
- keyboard
- key
- matrix
- module
- backlight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Input From Keyboards Or The Like (AREA)
Abstract
The utility model discloses a computer keyboard. The computer keyboard comprises a matrix keyboard module, a keyboard control system and a key time delay circuit; the computer keyboard is characterized in that the keyboard control system is used for detecting the state of the matrix keyboard module and outputting keyboard information; the matrix keyboard module is used for collecting input information of a key; the key time delay circuit is used for executing corresponding functions of a keyboard locking key and a keyboard backlight key by being delayed for 5 seconds after the keyboard locking key and the keyboard backlight key are pressed; particularly, the matrix keyboard circuit also comprises the keyboard locking key and the keyboard backlight key, the keyboard locking key is used for locking an integrated keyboard, and the keyboard backlight key is used for opening and closing a backlight lamp of the integrated keyboard. The computer keyboard disclosed by the utility model has the advantages that the system stability is high, the practicability is strong, and the requirement of a market can be well met.
Description
Technical field
The utility model relates to a kind of computor-keyboard, and particularly a kind of easy to use, system is convenient, stable, practical computor-keyboard.
Background technology
Along with scientific and technological progress, this sci-tech product of computor-keyboard is more and more ripe, yet, computor-keyboard on the market is all just realized the basic function of some keyboards, can not provide backlight, lock function, present computor-keyboard is all the key part circuit that the soft PCB of use makes keyboard, although low price like this, spoilage is high, according to investigations, the damage great majority of this keyboard are because the soft PCB circuit of the inside is burned, make the circuit can not conducting, cause keyboard can not continue to use
The utility model has not only added backlight in function, and locking key has also carried out time delay control to locking key, key backlight, has improved practicality and stability, and the utility model is used hard pcb board to make circuit more stable, reliable.
Summary of the invention
Problem to be solved in the utility model is, proposed a kind of easy to use, function-stable, practical a kind of computor-keyboard.
The technical scheme that the utility model adopts is: a kind of computor-keyboard, include matrix keyboard module, and it is characterized in that: be also provided with keyboard control system, for detection of the state of matrix keyboard module, and keypad information exported; Matrix keyboard module, for carrying out the input message collection of button; Button delay circuit, produces the function of 5s time delay for the state to matrix keyboard module.
Described matrix keyboard module also includes keyboard lockout key, for matrix keyboard module is locked.
Described matrix keyboard module also includes keyboard back light key, for the backlight of opening and closing matrix keyboard module.
A kind of computor-keyboard of the present utility model, adopt modular design, simple in structure, be furnished with especially button time delay, can realize time delay accurately, this utility model has realized the elemental motion of matrix keyboard module, delay function, keyboard lockout and backlight, for keyboard control system steady operation provides basis, also for it is further studied to the condition that provides.
Accompanying drawing explanation
Fig. 1 is computor-keyboard entire block diagram
Fig. 2 is for pressing key control system circuit
Fig. 3 is button delay circuit
Wherein:
1. keyboard control system
2. matrix keyboard module
3. button delay circuit
21. keyboard lockout keys
22. keyboard back light keys
Embodiment
Below in conjunction with embodiment and accompanying drawing, a kind of computor-keyboard of the present utility model is described in detail.
As shown in Figure 1, a kind of computor-keyboard of the present utility model, includes matrix keyboard module 2, it is characterized in that: be also provided with keyboard control system 1, for detection of the state of matrix keyboard module 2, and keypad information exported; Matrix keyboard module 2, for carrying out the input message collection of button; Button delay circuit 3, produces the function of 5s time delay for the state to matrix keyboard module 2.
Described matrix keyboard module 2 also includes keyboard lockout key 21, for matrix keyboard module 2 is locked.
Described matrix keyboard module 2 also includes keyboard back light key 22, for the backlight of opening and closing matrix keyboard module 2.
As shown in Figure 2, described comprises keyboard control chip U1 by key control system 1, the a end of crystal oscillator Y1 is connected with 34 pins of U1, the b end of Y1 is connected with 33 pin of U1, the b end of capacitor C 1 is connected with a end of Y1, and the b end of capacitor C 2 is connected with the b end of Y1, and a end of capacitor C 1, C2 is received on the ground jointly, form crystal oscillating circuit, for U1 provides clock; The a end of resistance R 7 is connected with a end of capacitor C 5, is connected on 32 pins of U1 simultaneously, and the b of resistance R 7 end is connected with power supply, and the b end of capacitor C 5 is connected to the ground, and forms reset circuit; The a end of resistance R 9 is connected with 22 pins of U1, and b holds and is connected with 21 pins of U1, and R9 provides identifying information as pull-up resistor for USB.
As shown in Figure 3, described button delay circuit 3 comprises delay circuit chip U4, the b end of resistance R 16 is connected with 11 pins of U4, a end is connected with the b end of resistance R 17, the a end of resistance R 17 is connected with 10 pins of U4, the a end of capacitor C 11 is connected with 9 pins of U4, and b end is connected with the b end of resistance R 17, and composition RC oscillating circuit provides clock for U4; The a end of triode Q1 is connected with 12 pins of U4, c end is connected with a end of resistance R 19, b end is connected to the ground, the b end of resistance R 19 is connected with a end of button S1, the b end of button S1 is connected with power supply, and a end of resistance R 20 is connected with the b end of resistance R 19, and the b end of resistance R 20 is connected to the ground, form button delay circuit, pushing button is that opening chip U4 carries out time delay; Be connected with 2 pins of door U6A and a of button S1 end, be connected with 5 pins of door U6B and a of S2 end, for judging the state of button S1, S2; 12 pins of JK master-slave flip-flop U5A are connected with 3 pins of U6A, and 9 pins of JK master-slave flip-flop U5B are connected with 6 pins of U6B, for locking the state of button.
A kind of computor-keyboard of the present utility model, use simple circuit and electronic original part to build keyboard control system, button delay circuit, and matrix keyboard module adopts modular design, simple in structure, be furnished with especially keyboard lockout key and keyboard back light key, this utility model has realized the elemental motion of matrix keyboard module, time delay, keyboard lockout and backlight function, it is simple, convenient to use, and provides condition for the functional study of whole keyboard.
Claims (3)
1. a computor-keyboard, includes matrix keyboard module (2), it is characterized in that: be also provided with keyboard control system (1), for detection of the state of matrix keyboard module (2), and keypad information exported; Matrix keyboard module (2), for carrying out the input message collection of button; Button delay circuit (3), produces the function of time delay in 5 seconds for the state to matrix keyboard module (2).
2. a kind of computor-keyboard according to claim 1, is characterized in that described matrix keyboard module (2) also includes keyboard lockout key (21), for matrix keyboard module (2) is locked.
3. a kind of computor-keyboard according to claim 1, is characterized in that described matrix keyboard module (2) also includes keyboard back light key (22), for the backlight of opening and closing matrix keyboard module (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890243.8U CN203773478U (en) | 2013-12-31 | 2013-12-31 | Computer keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890243.8U CN203773478U (en) | 2013-12-31 | 2013-12-31 | Computer keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203773478U true CN203773478U (en) | 2014-08-13 |
Family
ID=51290645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320890243.8U Expired - Fee Related CN203773478U (en) | 2013-12-31 | 2013-12-31 | Computer keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203773478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10571624B2 (en) | 2015-08-28 | 2020-02-25 | Microsoft Technology Licensing, Llc | Laminated input devices |
-
2013
- 2013-12-31 CN CN201320890243.8U patent/CN203773478U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10571624B2 (en) | 2015-08-28 | 2020-02-25 | Microsoft Technology Licensing, Llc | Laminated input devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |