CN201440241U - Inductive proximity switch backlight wireless keyboard - Google Patents
Inductive proximity switch backlight wireless keyboard Download PDFInfo
- Publication number
- CN201440241U CN201440241U CN2009201643506U CN200920164350U CN201440241U CN 201440241 U CN201440241 U CN 201440241U CN 2009201643506 U CN2009201643506 U CN 2009201643506U CN 200920164350 U CN200920164350 U CN 200920164350U CN 201440241 U CN201440241 U CN 201440241U
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- keyboard
- induction
- antenna
- switch
- led
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Abstract
The utility model relates to an inductive proximity switch backlight wireless keyboard. A light panel is arranged in a keyboard body. A LED is arranged at the side face of the light panel. The utility model is characterized in that an inductive proximity switch is further arranged in the keyboard body, which comprises an induction processing device and an induction antenna. The induction processing device is arranged at one side in a keyboard shell. The induction antenna is connected with the induction processing device. The induction antenna is a printing line antenna which is printed on a film switch. The induction antenna is a lead wire antenna which is educed by the induction device and circles in the keyboard shell. The wireless keyboard is fabricated into the backlight model so that the keyboard can be used in the dark, which provides convenience for the user. At the same time, the Inductive proximity switch is adopted. The switch is in dormancy state at other times and when the hands of the user approach the keyboard, the switch will be opened, namely the LED receives the induction and lights. When the hands leave the keyboard, the LED goes out automatically. The limited electricity in the wireless keyboard is reasonably used and the service life of a battery is prolonged.
Description
Technical field
The utility model relates to a kind of computer wireless keyboard, particularly a kind of can not only the use in the dark, and when the user uses and do not use, can control unlatching, the closure of LED automatically, the Wireless Keyboard of saves energy.
Background technology
Do not have direct physical connection between Wireless Keyboard and computer, only send the information of importing to special receiver by infrared ray or radiowave.Wireless Keyboard has saved physical connection, makes keyboard no longer in bond, but after Wireless Keyboard lost physical connection, also having lost the power supply source simultaneously, so Wireless Keyboard all will be from charged pool.But it is limited to carry battery electric quantity, can't support that Wireless Keyboard uses for a long time, particularly Wireless Keyboard is made backlight type, and light guide plate and LED promptly are installed in Wireless Keyboard.Be equipped with the light on and off that a gauge tap is controlled LED on the general backlight type keyboard, that is to say, open LED at every turn and all need to dial or click switch, close LED at every turn, also need to dial or click switch, not only use inconvenient, no matter and be that the user is using or do not using the LED can be shinny always after the switch opens, can consume a large amount of electric energy, can not effectively utilize limited electric energy, cause keyboard short, not add backlight if prolong the service time of battery from the service time of charged pool, then keyboard can not use at the dark place, makes troubles to the user.
Summary of the invention
It is a kind of near inductive switch Wireless Keyboard backlight that the utility model provides, purpose is to solve the prior art problem, a kind of Wireless Keyboard with light guide plate and LED is provided, this keyboard not only also can use at night, simultaneously LED can open automatically under near the control of inductive switch and extinguish, saves energy has prolonged the service time of keyboard from charged pool.
The utility model technical scheme that adopts of dealing with problems is:
Near the inductive switch backlight keyboard, be provided with light guide plate in the keyboard body, LED is located at the light guide plate side, it is characterized in that: also be provided with in the keyboard body near inductive switch, comprise induction treating apparatus and induction antenna near inductive switch, the induction treating apparatus is located at a side in the keyboard case, and induction antenna links together with the induction treating apparatus.
Described induction antenna is the printed wire antenna, is printed on the thin film switch.
Described induction antenna is a wire antenna, is drawn by induction installation, and is looped around in the keyboard case.
The beneficial effects of the utility model: Wireless Keyboard is made backlight type, it also can be used at the dark place, make things convenient for the user.Adopt simultaneously near inductive switch, switch is in dormant state at ordinary times, only when the user need use keyboard, hand will be opened near keyboard 5-10 centimeters switch, be that LED receives that induction is light, hand leaves back LED and extinguishes automatically, makes electric weight limited in the Wireless Keyboard obtain reasonable use, prolongs the service time of battery.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the synoptic diagram of wire antenna.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, near the inductive switch backlight keyboard, be provided with light guide plate 2 in the keyboard body, light guide plate 2 is located between key cap layer 1 and the metal clips layer 3, and LED5 is located at light guide plate 2 sides.Metal clips layer 3 has film circuit board 4.Also be provided with in the keyboard body near inductive switch, comprise induction treating apparatus 6 and induction antenna 7 near inductive switch, induction treating apparatus 6 is located at a side in the keyboard case 8, and induction antenna 7 links together with induction treating apparatus 6.The position that is provided with of light guide plate is not limited to above-mentioned said position, as long as meet conventional the setting.
Principle of work near inductive switch is: the induction treating apparatus is installed on keyboard, extend induction antenna on this device, form a plane capacitance between induction antenna and the ground, during when the close keyboard of hand, near induction antenna, people's hand has served as conductor, changed original capacitance between antenna and the ground, the induction treating apparatus sends unlatching and the closure that signal comes gauge tap after capacitance variation.
The design of induction antenna has dual mode:
1. described induction antenna is the printed wire antenna.When keyboard is membrane keyboard, antenna is printed on the thin film switch, this method joins the manufacturing process of printed antenna in the manufacturing process of thin film switch and goes, and needn't increase new process.
2. as shown in Figure 2, described induction antenna is a wire antenna 7 '.This wire antenna 7 ' is drawn by induction installation 6, and is looped around in the keyboard case 8.
During use, when hand did not have near keyboard, the LED of Wireless Keyboard was in and extinguishes state, at this moment the direct capacitance C between induction antenna and the ground
pValue does not change.When pointing near keyboard, finger serves as another pole plate, has produced new capacitor C
f, and capacitor C
fWith former capacitor C
pParallel connection has changed antenna with the capacitance between the ground, promptly former capacitor C
pChange has taken place in value.Induction treating apparatus 6 is sensed former capacitor C
pAfter value has taken place to change, send signal and make near inductive switch and open the LED5 starter.The light that LED5 sends is even with photoconduction by light guide plate 2, from bottom to top comes in the transmission, and button possesses the printing opacity design, and that can see in the dark is very clear, user-friendly.When not using, hand leaves keyboard, and after hand left, the electric capacity between induction antenna and the ground returned to initial value, and LED returns to again and extinguishes state.So just can save the limited energy of Wireless Keyboard, make more lasting that the power using time of Wireless Keyboard becomes.
Claims (3)
1. near the inductive switch backlight keyboard, be provided with light guide plate in the keyboard body, LED is located at the light guide plate side, it is characterized in that: also be provided with in the keyboard body near inductive switch, comprise induction treating apparatus and induction antenna near inductive switch, the induction treating apparatus is located at a side in the keyboard case, and induction antenna links together with the induction treating apparatus.
2. as claimed in claim 1 near the inductive switch backlight keyboard, it is characterized in that: described induction antenna is the printed wire antenna, is printed on the thin film switch.
3. as claimed in claim 1 near the inductive switch backlight keyboard, it is characterized in that: described induction antenna is a wire antenna, is drawn by induction installation, and is looped around in the keyboard case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201643506U CN201440241U (en) | 2009-07-01 | 2009-07-01 | Inductive proximity switch backlight wireless keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201643506U CN201440241U (en) | 2009-07-01 | 2009-07-01 | Inductive proximity switch backlight wireless keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201440241U true CN201440241U (en) | 2010-04-21 |
Family
ID=42544904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201643506U Expired - Fee Related CN201440241U (en) | 2009-07-01 | 2009-07-01 | Inductive proximity switch backlight wireless keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201440241U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150114813A1 (en) * | 2013-10-25 | 2015-04-30 | Primax Electronics Ltd. | Keyboard |
| CN104635935A (en) * | 2013-11-06 | 2015-05-20 | 致伸科技股份有限公司 | Keyboard |
| CN105892571A (en) * | 2015-02-13 | 2016-08-24 | 谷歌公司 | Attaching computing device to mount by magnets |
| CN110554779A (en) * | 2019-10-23 | 2019-12-10 | 深圳市博仪创科技有限公司 | Induction type backlight wireless keyboard module |
-
2009
- 2009-07-01 CN CN2009201643506U patent/CN201440241U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150114813A1 (en) * | 2013-10-25 | 2015-04-30 | Primax Electronics Ltd. | Keyboard |
| US9087662B2 (en) * | 2013-10-25 | 2015-07-21 | Primax Electronics Ltd. | Keyboard with induction antenna arranged under a key |
| CN104635935A (en) * | 2013-11-06 | 2015-05-20 | 致伸科技股份有限公司 | Keyboard |
| CN104635935B (en) * | 2013-11-06 | 2018-01-23 | 致伸科技股份有限公司 | Keyboard |
| CN105892571A (en) * | 2015-02-13 | 2016-08-24 | 谷歌公司 | Attaching computing device to mount by magnets |
| CN110554779A (en) * | 2019-10-23 | 2019-12-10 | 深圳市博仪创科技有限公司 | Induction type backlight wireless keyboard module |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100421 Termination date: 20170701 |