CN202749871U - Power supply for safe keyboard - Google Patents
Power supply for safe keyboard Download PDFInfo
- Publication number
- CN202749871U CN202749871U CN 201220447512 CN201220447512U CN202749871U CN 202749871 U CN202749871 U CN 202749871U CN 201220447512 CN201220447512 CN 201220447512 CN 201220447512 U CN201220447512 U CN 201220447512U CN 202749871 U CN202749871 U CN 202749871U
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- CN
- China
- Prior art keywords
- power supply
- keyboard
- usb interface
- safe keyboard
- utility
- 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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- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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Abstract
The utility model discloses a power supply for a safe keyboard, comprising a mobile electric device charger, a USB interface connected with the mobile electric device charger, and a data line connected with the USB interface and the circuit board of a safe keyboard, wherein the power supply line of the data line is connected with the circuit board of the safe keyboard. The power supply for a safe keyboard is simple in structure and convenient in carrying, and can fully utilize the prior mobile electric device charger for improvement, thereby satisfying the real application demands of the safe keyboard, and increasing economic benefit.
Description
Technical field
The utility model relates to the power supply of safety keyboard.
Background technology
The DC power supply of the upper use of circuit board mostly is 5V at present, 12V's and so on, the power supply that a lot of people adopt test chamber to provide, or special-purpose stabilized voltage power supply.Because test chamber, stabilized voltage power supply are larger, and be very inconvenient when debugging circuit board, also is not easy to carry.
The utility model content
The purpose of this utility model provides a kind of power supply of safety keyboard, and power supply brings when reducing debug circuit trouble and inconvenience utilize the USB line of charger for mobile phone to transform the device of 5V DC power supply as.
The utility model is achieved through the following technical solutions: the power supply of this safety keyboard comprises mobile electronic equipment charger, the USB interface that is connected with this mobile electronic equipment charger, the data wire of connection USB interface and safety keyboard circuit board.
Power line in the data wire and ground wire access security keyboard pcb.
Beneficial effect: the utility model is simple in structure, be easy to carry, and the charger that can take full advantage of the electronics mobile device is transformed, and has satisfied the user demand of actual safety keyboard, has improved economic benefit.
Description of drawings
In order to be easy to explanation, the utility model is done to describe in detail by following specific embodiment and accompanying drawing.
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, the power supply of this safety keyboard comprises mobile electronic equipment charger 1, the USB interface 2 that is connected with this mobile electronic equipment charger 1, the data wire 4 of connection USB interface 2 and safety keyboard circuit board 3.Power line in the data wire 4 and ground wire access security keyboard pcb 3.
Take waste and old charger for mobile phone as example, waste and old charger for mobile phone is got involved the 220V alternating current in the present embodiment, after USB interface 2 conversions, form the direct current of 5V between blue white two colo(u)r streaks in the data wire 4, access security keyboard pcb 3 is for it.The USB interface that has is 5 lines, behind the alternating current of charger for mobile phone access 220V, carefully detects in twos with universal instrument, can obtain the DC power supply of 5V.
The utility model is simple in structure, be easy to carry, and the charger that can take full advantage of the electronics mobile device is transformed, and has satisfied the user demand of actual safety keyboard, has improved economic benefit.
The above only be embodiment of the present utility model, but protection range of the present utility model is not limited to this, and any variation or replacement of expecting without creative work all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range that claims were limited.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447512 CN202749871U (en) | 2012-09-05 | 2012-09-05 | Power supply for safe keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447512 CN202749871U (en) | 2012-09-05 | 2012-09-05 | Power supply for safe keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202749871U true CN202749871U (en) | 2013-02-20 |
Family
ID=47709223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220447512 Expired - Fee Related CN202749871U (en) | 2012-09-05 | 2012-09-05 | Power supply for safe keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202749871U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854967A (en) * | 2012-09-05 | 2013-01-02 | 健雄职业技术学院 | Power supply for safety keyboard |
-
2012
- 2012-09-05 CN CN 201220447512 patent/CN202749871U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854967A (en) * | 2012-09-05 | 2013-01-02 | 健雄职业技术学院 | Power supply for safety keyboard |
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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: 20130220 Termination date: 20140905 |
|
| EXPY | Termination of patent right or utility model |