CN202600621U - Keyboard with switch unit - Google Patents
Keyboard with switch unit Download PDFInfo
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- CN202600621U CN202600621U CN 201120516020 CN201120516020U CN202600621U CN 202600621 U CN202600621 U CN 202600621U CN 201120516020 CN201120516020 CN 201120516020 CN 201120516020 U CN201120516020 U CN 201120516020U CN 202600621 U CN202600621 U CN 202600621U
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- keyboard
- interface
- switch element
- resistance
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Abstract
A keyboard with a switch unit comprises an interface unit, a keyboard and cables connected between the interface unit and the keyboard. The keyboard provided in the utility model further comprises the switch unit. A switch or an element similar to a switch in the switch unit is connected on the power lines between the interface unit and the keyboard. The power supply from a host of a computer to the keyboard can be controlled through the switch unit. When the keyboard is out of use, the power supply to the keyboard is stopped and the electromagnetic radiation can be reduced by nearly 55%. The energy-saving aim is also achieved. The keyboard with the switch unit has the characteristics of simple structure, easy manufacture, low cost, convenient installation, convenient use and small occupying area.
Description
Technical field:
The utility model relates to a kind of keyboard that has switch element.
Background technology:
Along with computing machine is come into daily life, it has brought great facility for modern's work, study, becomes the requisite instrument of people's productive life.Computing machine is when offering convenience to people; The electromagnetic radiation that it produced has brought harm also for people's health; And people often know little about it to electromagnetic radiation from computer amount and harm; According to international MPR II radiation proof security regulations, the radiant quantity of necessary≤25V/m is only safe in 0.5 meter distance.But the result of actual measurement is: the radiant quantity of keyboard is 1000V/m; The radiant quantity of mouse is 450V/m; The radiant quantity of display is 218V/m; The radiant quantity of main frame is 170V/m, and total amount of electromagnetic radiation of desk-top computer is more than 70 times of safety value, and total amount of electromagnetic radiation of notebook computer is 100 times of safety value.Medical report was pointed out to use a computer every day 4-6 hour, and the probability that gets cancer after 3 years Duos 26% than the normal person.So, how to prevent effectively and reduce the threat of Computer Electromagnetic Radiation health, be the problems that people must be concerned about and pay close attention in productive life.
Summary of the invention:
The purpose of the utility model is to provide a kind of keyboard that has switch element, and the main frame through the switch element control computer is to the power supply of keyboard, when keyboard does not use, stops power supply to reach energy-conservation and the purpose that reduces electromagnetic radiation.
The technical scheme of the utility model is achieved in that a kind of keyboard that has switch element; Comprise: interface unit, keyboard and be connected described interface unit and described keyboard between cable; It is characterized in that; Also comprise switch element, the element that the switch in the described switch element perhaps is equivalent to switch is connected on the power lead between described interface unit and the described keyboard;
The element that the above-mentioned keyboard that has switch element, the switch in the described switch element perhaps are equivalent to switch also can be connected on the data line between described interface unit and the described keyboard;
The element that the above-mentioned keyboard that has switch element, the switch in the described switch element perhaps are equivalent to switch also can be connected on the ground wire between described interface unit and the described keyboard;
The above-mentioned keyboard that has switch element, the switch in the described switch element can be mechanical switch, also can be electronic switches, or electronic switch module;
The above-mentioned keyboard that has switch element can be controlled described electronic switch or described electronic switch module through software;
The above-mentioned keyboard that has switch element, described cable is coated with insulation course;
The above-mentioned keyboard that has switch element, described switch element can be made of one with described interface unit or described keyboard;
Following situation is more suitable embodiment:
A kind of keyboard that has switch element; Interface unit 1 is PS/2 interface or USB interface; Keyboard 2 is the keyboard of the prior art of computing machine; It is characterized in that switch element 4 adopts the one pole tumbler switches, described one pole tumbler switch is connected on the power lead between the keyboard 2 of described PS/2 interface or USB interface and computing machine.
A kind of keyboard that has switch element; Interface unit 1 is PS/2 interface or USB interface; Keyboard 2 is the keyboard of the prior art of computing machine; It is characterized in that switch element 4 is made up of d type flip flop A1, moving pass SB, electrolytic condenser C, triode V and resistance R 1, R2, the R3 of running jointly, the pin VDD of d type flip flop A1 is connected with power lead VCC; Pin VSS is connected with ground wire GND; Pin D is connected with pin/Q; Pin R is connected with the negative pole end of electrolytic condenser C and an end of resistance R 2, and the positive terminal of electrolytic condenser C is connected with power lead VCC, and the other end of resistance R 2 is connected with ground wire GND; Pin S is connected with ground wire GND; Pin CP runs the end that closes SB jointly and an end of resistance R 1 is connected with moving, and the moving other end of running pass SB jointly is connected with power lead VCC, and the other end of resistance R 1 is connected with ground wire GND; Pin Q is connected with an end of resistance R 3, and the other end of resistance R 3 is connected with the base stage of triode V, and the emitter of triode V is connected with the end of incoming cables L of power lead VCC, and collector is connected with the leading-out terminal N of power lead VCC.
A kind of keyboard that has switch element, interface unit 1 is PS/2 interface or USB interface, keyboard 2 is the keyboard of the prior art of computing machine; It is characterized in that; Switch element 4 is by the control module that constitutes with single-chip microcomputer, and the detecting unit 41 that is connected with the I/O interface of single-chip microcomputer is formed with control execution unit 42, and described control execution unit 42 is made up of with triode V resistance R 2; Wherein an end of resistance R 2 is connected with the I/O interface of single-chip microcomputer; The other end is connected with the base stage of triode V, and the emitter of triode V is connected with the end of incoming cables L of power lead VCC, and collector is connected with the leading-out terminal N of power lead VCC; Detection part in the described detecting unit 41 can be selected temperature sensor for use, perhaps selects pyroelectric infrared sensor for use, perhaps selects the touch detection part of touch screen technology for use, perhaps selects pressure transducer for use.
Can know that via technique scheme the utility model has following advantage at least: (1) is simple in structure, is easy to make, and cost is low.(2) installation, easy to use, it is little to take up room.(3) when not using keyboard,, can reduce by nearly 55% electromagnetic radiation through of the power supply of switch element Shutdown Hosts to keyboard.
Description of drawings:
Fig. 1 is the circuit block diagram of the utility model;
Fig. 2 is the circuit theory diagrams of the 1st embodiment of the utility model;
Fig. 3 is the circuit theory diagrams of the 2nd embodiment of the utility model;
Fig. 4 is the circuit theory diagrams of the 3rd embodiment of the utility model;
Fig. 5 a is the circuit theory diagrams of the 4th embodiment of the utility model;
Fig. 5 b is the circuit theory diagrams of the 4th embodiment of the utility model.
Reference numeral is expressed as: 1-interface unit, 2-keyboard, 3-cable, 4-switch element, 41-temperature detecting unit, 42-temperature control execution unit.
Embodiment:
Below in conjunction with accompanying drawing the utility model is done further detailed description:
Embodiment 1: as depicted in figs. 1 and 2; A kind of keyboard that has switch element of present embodiment; Interface unit 1 is the USB interface male joint, and keyboard 2 is the keyboard of USB interface of computer, and described keyboard is the keyboard of prior art; Switch element 4 adopts one pole tumbler switch S, and described one pole tumbler switch S is connected on the power lead VCC between described USB interface male joint and the described keyboard.
DATA-data line in the USB interface male joint, DATA+ data line, GND ground wire respectively with the USB interface keyboard on DATA-data line, DATA+ data line, GND ground wire be connected.
For described one pole tumbler switch S, can be installed on the keyboard, to be user-friendly to.
The above-mentioned keyboard that has switch element, described cable 3 is coated with insulation course.
Embodiment 2: as shown in figures 1 and 3; A kind of keyboard that has switch element of present embodiment; Interface unit 1 is the male joint of PS/2 interface, and keyboard 2 is the keyboard of the PS/2 interface of computing machine, and described keyboard is the keyboard of prior art; Switch element 4 is made up of d type flip flop A1, moving pass SB, electrolytic condenser C, triode V and resistance R 1, R2, the R3 of running jointly, and the pin VDD of d type flip flop A1 is connected with power lead VCC; Pin VSS is connected with ground wire GND; Pin D is connected with pin/Q; Pin R is connected with the negative pole end of electrolytic condenser C and an end of resistance R 2, and the positive terminal of electrolytic condenser C is connected with power lead VCC, and the other end of resistance R 2 is connected with ground wire GND; Pin S is connected with ground wire GND; Pin CP runs the end that closes SB jointly and an end of resistance R 1 is connected with moving, and the moving other end of running pass SB jointly is connected with power lead VCC, and the other end of resistance R 1 is connected with ground wire GND; Pin Q is connected with an end of resistance R 3, and the other end of resistance R 3 is connected with the base stage of triode V, and the emitter of triode V is connected with the end of incoming cables L of power lead VCC, and collector is connected with the leading-out terminal N of power lead VCC.
DATA data line in the male joint of PS/2 interface, GND ground wire and CLK clock line respectively with the PS/2 interface keyboard on DATA data line, GND ground wire and CLK clock line be connected.
Can be installed in the keyboard for described switch element 4, and moving running jointly wherein closed SB, can be installed on the keyboard, to be user-friendly to.
The above-mentioned keyboard that has switch element, described cable 3 is coated with insulation course.
Correspondingly, the switch element in the present embodiment 4 is applied to the keyboard of USB interface, also can reaches same technique effect.
Simultaneously, what present embodiment provided closes the electronic switch module that SB, electrolytic condenser C, triode V and resistance R 1, R2, R3 form by d type flip flop A1, moving running jointly, also is applied among other embodiment of the utility model.The element of switch element 4 explanation in the claim and annexation i.e. electronic switch module for this reason.
Embodiment 3: like Fig. 1 and shown in Figure 4; A kind of keyboard that has switch element of present embodiment; Interface unit 1 is the USB interface male joint, and keyboard 2 is the keyboard of USB interface, and described keyboard is the keyboard of prior art; Switch element 4 is by the control module that constitutes with single-chip microcomputer, and the temperature detecting unit 41 that is connected with the I/O interface of single-chip microcomputer, temperature control execution unit 42 are formed.Described temperature detecting unit 41 is made up of DS18B20 digital temperature sensor and resistance R 1; Wherein the pin 1 of DS18B20 is connected with ground wire GND; Pin 2 is connected with an end of resistance R 1 and the P2.4 pin of single-chip microcomputer, and the other end of resistance R 1 is connected with the pin 3 of power supply VCC and DS18B20.
Described temperature control execution unit 42 is made up of with triode V resistance R 2; Wherein an end of resistance R 2 is connected with the P1.1 pin of single-chip microcomputer; The other end is connected with the base stage of triode V; The emitter of triode V is connected with the end of incoming cables L of power lead VCC, and collector is connected with the leading-out terminal N of power lead VCC.
In use; With a plurality of DS18B20 be arranged in keyboard around or other suitable positions; Can the signal wire DQ of these DS18B20 be connected with 1 I/O line of single-chip microcomputer, also can be connected with the multidigit I/O line of single-chip microcomputer, wherein having a DS18B20 at least is the testing environment temperature.During beginning, triode V does not power up not work by keyboard and does not produce electromagnetic radiation yet, when user's both hands reach keyboard region preparation input character; Some DS18B20 can detect the rising of temperature; Single-chip microcomputer as control module collects the multiple spot data, through relatively confirming, to temperature control execution unit 42 output signals; Make triode V conducting, this moment, keyboard was activated in running order.When the hand that detects the user when the single-chip microcomputer of control module leaves keyboard region; After program setting time-delay a period of time; To temperature control execution unit 42 output signals, triode V is ended, keyboard is in again that not powering up does not work does not produce the state of electromagnetic radiation yet.
Switch element 4 in the present embodiment can be made of one with the keyboard of prior art, if be made of one, can use the microcontroller in the keyboard of prior art as the single-chip microcomputer of control module.DS18B20 adopts the patch-type encapsulation.
Correspondingly, the switch element in the present embodiment 4 is applied to the keyboard of PS/2 interface, also can reaches same technique effect.
Embodiment 4: shown in Fig. 1 and Fig. 5 a; A kind of keyboard that has switch element of present embodiment; Interface unit 1 is the USB interface male joint, and keyboard 2 is the keyboard of USB interface, and described keyboard is the keyboard of prior art; Switch element 4 is by the control module that constitutes with single-chip microcomputer, and the temperature detecting unit 41 that is connected with the I/O interface of single-chip microcomputer, temperature control execution unit 42 are formed.Described temperature detecting unit 41 is made up of AMN1 pyroelectric infrared sensor and resistance R 1; Wherein the pin 1 of AMN1 is connected with ground wire GND; Pin 2 is connected with an end of resistance R 1 and the P2.4 pin of single-chip microcomputer; The other end of resistance R 1 is connected with ground wire GND, and the pin 3 of AMN1 is connected with power supply VCC.Single-chip microcomputer can be selected AT89S52 for use.
Described temperature control execution unit 42 is made up of with triode V resistance R 2; Wherein an end of resistance R 2 is connected with the P1.1 pin of single-chip microcomputer; The other end is connected with the base stage of triode V; The emitter of triode V is connected with the end of incoming cables L of power lead VCC, and collector is connected with the leading-out terminal N of power lead VCC.
In use, with one or more AMN1 pyroelectric infrared sensors be arranged in keyboard around or other suitable positions, the signal wire Out of these AMN1 is connected with the I/O line of single-chip microcomputer respectively.During beginning, triode V does not power up not work by keyboard and does not produce electromagnetic radiation yet, when user's both hands reach keyboard region preparation input character; One or more AMN1 can detect infrared signal in one's hands; Single-chip microcomputer as control module collects the multiple spot data, through relatively confirming, to temperature control execution unit 42 output signals; Make triode V conducting, this moment, keyboard was activated in running order.When the hand that detects the user when the single-chip microcomputer of control module leaves keyboard region; After program setting time-delay a period of time; To temperature control execution unit 42 output signals, triode V is ended, keyboard is in again that not powering up does not work does not produce the state of electromagnetic radiation yet.
Switch element 4 in the present embodiment can be made of one with the keyboard of prior art, if be made of one, can use the microcontroller in the keyboard of prior art as the single-chip microcomputer of control module.
Shown in Fig. 5 b, switch element 4 has omitted the single-chip microcomputer as control module, and the signal wire Out of AMN1 is connected with the base stage of triode V through resistance R 2.The signal wire Out of AMN1 can directly drive the triode V as switch.
Correspondingly; Switch element 4 can adopt the vector pressure sensing technology touch-screen, resistive technologies touch-screen, capacitance technology touch-screen, infrared technology touch-screen, surface acoustic wave technique touch-screen of touch screen technology etc. as touching detection part, and makes up with touch screen controller that the keyboard of controlling prior art is in running order to be in still that not powering up does not work does not produce the state of electromagnetic radiation yet.
Correspondingly, the switch element in the present embodiment 4 is applied to the keyboard of PS/2 interface, also can reaches same technique effect.
In computed process, when not using keyboard,, can reduce by nearly 55% electromagnetic radiation through of the power supply of switch element 4 Shutdown Hosts to keyboard, also reached purpose of energy saving simultaneously.
If the technical scheme that the utility model is provided is applied on the keyboard of prior art; Switch element 4 can be made of one the formula structure with the keyboard of prior art, and the toggle switch of two grades or third gear or many grades can be installed for the keyboard that is made of one the formula structure.The difference of the type of attachment through two grades or third gear or many grades of toggle switches defines different functions.The third gear toggle switch for example is installed on the keyboard; The function of first gear is the keyboard of prior art; The function of second gear is the power supply of Shutdown Hosts to keyboard, and the function of third gear is to adopt the break-make that touches detection part automatic switchover keyboard through switch element 4.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or changes, need not also can't give exhaustive here to all embodiments.And conspicuous variation of being amplified out thus or change still are among the protection domain of the utility model.In addition, although used some specific terms in this instructions, these terms are explanation for ease just, the utility model is not constituted any restriction.
Claims (4)
1. keyboard that has switch element; Comprise: interface unit (1), keyboard (2) and be connected described interface unit (1) and described keyboard (2) between cable (3); It is characterized in that; Also comprise switch element (4), the element that the switch in the described switch element (4) perhaps is equivalent to switch is connected on the power lead between described interface unit (1) and the described keyboard (2).
2. a kind of keyboard that has switch element as claimed in claim 1; Interface unit (1) is PS/2 interface or USB interface; Keyboard (2) is the keyboard of the prior art of computing machine; It is characterized in that switch element (4) adopts the one pole tumbler switch, described one pole tumbler switch is connected on the power lead between the keyboard (2) of described PS/2 interface or USB interface and computing machine.
3. a kind of keyboard that has switch element as claimed in claim 1; Interface unit (1) is PS/2 interface or USB interface; Keyboard (2) is the keyboard of the prior art of computing machine; It is characterized in that switch element (4) is made up of d type flip flop A1, moving pass SB, electrolytic condenser C, triode V and resistance R 1, R2, the R3 of running jointly, the pin VDD of d type flip flop A1 is connected with power lead VCC; Pin VSS is connected with ground wire GND; Pin D is connected with pin/Q; Pin R is connected with the negative pole end of electrolytic condenser C and an end of resistance R 2, and the positive terminal of electrolytic condenser C is connected with power lead VCC, and the other end of resistance R 2 is connected with ground wire GND; Pin S is connected with ground wire GND; Pin CP runs the end that closes SB jointly and an end of resistance R 1 is connected with moving, and the moving other end of running pass SB jointly is connected with power lead VCC, and the other end of resistance R 1 is connected with ground wire GND; Pin Q is connected with an end of resistance R 3, and the other end of resistance R 3 is connected with the base stage of triode V, and the emitter of triode V is connected with the end of incoming cables L of power lead VCC, and collector is connected with the leading-out terminal N of power lead VCC.
4. a kind of keyboard that has switch element as claimed in claim 1, interface unit (1) is PS/2 interface or USB interface, keyboard (2) is the keyboard of the prior art of computing machine; It is characterized in that; Switch element (4) is by the control module that constitutes with single-chip microcomputer, and detecting unit (41) that is connected with the I/O interface of single-chip microcomputer and control execution unit (42) are formed, and described control execution unit (42) is made up of with triode V resistance R 2; Wherein an end of resistance R 2 is connected with the I/O interface of single-chip microcomputer; The other end is connected with the base stage of triode V, and the emitter of triode V is connected with the end of incoming cables L of power lead VCC, and collector is connected with the leading-out terminal N of power lead VCC; Detection part in the described detecting unit (41) can be selected temperature sensor for use, perhaps selects pyroelectric infrared sensor for use, perhaps selects the touch detection part of touch screen technology for use, perhaps selects pressure transducer for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120516020 CN202600621U (en) | 2011-12-13 | 2011-12-13 | Keyboard with switch unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120516020 CN202600621U (en) | 2011-12-13 | 2011-12-13 | Keyboard with switch unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202600621U true CN202600621U (en) | 2012-12-12 |
Family
ID=47318150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120516020 Expired - Fee Related CN202600621U (en) | 2011-12-13 | 2011-12-13 | Keyboard with switch unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202600621U (en) |
-
2011
- 2011-12-13 CN CN 201120516020 patent/CN202600621U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20131213 |