CN204243878U - A kind of emergency power supply unit being applicable to liquid crystal display - Google Patents
A kind of emergency power supply unit being applicable to liquid crystal display Download PDFInfo
- Publication number
- CN204243878U CN204243878U CN201420767416.1U CN201420767416U CN204243878U CN 204243878 U CN204243878 U CN 204243878U CN 201420767416 U CN201420767416 U CN 201420767416U CN 204243878 U CN204243878 U CN 204243878U
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- CN
- China
- Prior art keywords
- power supply
- liquid crystal
- supply unit
- crystal display
- line
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- 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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Abstract
The utility model is a kind of emergency power supply unit being applicable to liquid crystal display, be provided with power supply unit, the input of power supply unit is connected with 220V power input line, the end of power input line is connected with attaching plug, the output of power supply unit is provided with+5V output line ,+12V output line, power supply starting signal line and ground wire, the outer end of described+5V output line and+12V output line is provided with the binding post coordinated with liquid crystal display+5V and+12V power input respectively, and the outer end of described ground wire is provided with the binding post be connected with liquid crystal display power ground; Be connected by control switch between described power supply starting signal line and ground wire.The utility model connected mode is simple, fast wiring, easy maintenance.
Description
Technical field
The utility model relates to a kind of emergency power supply unit, particularly a kind of emergency power supply unit being applicable to liquid crystal display.
Background technology
The display of the computer of present use mostly is liquid crystal display, the power circuit of complete machine operating voltage is provided also to be Switching Power Supply in liquid crystal display, power circuit and high-tension circuit separated in the past, be two pieces of circuit boards, and mostly current liquid crystal display is power circuit and high-tension circuit to be incorporated on one piece of circuit board, namely achieve integration.Because liquid crystal display power circuit discrete component is many, failure rate is high, circuit more complicated, in order to reduced volume, a lot of electronic device all adopts surface mount elements, and particularly different manufacturers adopts respective special chip, and the replacement maintenance difficulty of trouble shoot and element is very large.
Summary of the invention
Technical problem to be solved in the utility model is for the deficiencies in the prior art, provides a kind of easy to use emergency power supply unit being applicable to liquid crystal display.
Technical problem to be solved in the utility model is realized by following technical scheme, the utility model is a kind of emergency power supply unit being applicable to liquid crystal display, be characterized in: be provided with power supply unit, the input of power supply unit is connected with 220V power input line, the end of power input line is connected with attaching plug, the output of power supply unit is provided with+5V output line, + 12V output line, power supply starting signal line and ground wire, the outer end of described+5V output line and+12V output line is provided with the binding post coordinated with liquid crystal display+5V and+12V power input respectively, the outer end of described ground wire is provided with the binding post be connected with liquid crystal display power ground, be connected by control switch between described power supply starting signal line and ground wire.
Technical problem to be solved in the utility model can also be realized further by following technical scheme, and the described emergency power supply unit being applicable to liquid crystal display, is characterized in: described power supply unit is ATX power supply.
ATX power supply directly can adopt the power supply in desk computer.Desktop computer is a kind of computer conventional in the past, and the power supply that its main frame uses is ATX power supply, and ATX power supply is also power pack or power supply unit, and is all Switching Power Supply.Along with the continuous renewal of computer hardware, desktop computer (particularly each University Computer Room, scientific research institutions, the desktop computer scrapped) great majority are eliminated, and the host power supply of therefore a large amount of computers is all eliminated, and causes waste.
+ the 12V ,+5V voltage that general liquid crystal display power circuit needs just in time conforms to the output dc voltage of host power supply.See the carrying load ability (seeing output current) of their corresponding voltage again.Liquid crystal display 15 ~ 32 inches, the general 2A ~ 4A of+12V output-current rating; + 5V output-current rating is generally 2.5A ~ 5A, and the two electric current is all less than 6A, and host power supply 12V, 5V, output rated current all at more than 10A, much larger than the electric current required for liquid crystal display, and leave enough allowances.Even if rated power is at the output current of 200W also all at more than 10A, there is not under powered problem in replacement maintenance.
Compared with prior art, the utility model adopts power supply unit to be connected with liquid crystal display, + 5V the output line of power supply unit is connected with+12V power input with the+5V of liquid crystal display with+12V output line, can direct current be become 220V convert alternating current to monitor power supply by the control switch on Switching Power Supply supply, its connected mode is simple, fast wiring, easy to use.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Embodiment
Referring to accompanying drawing, further describe concrete technical scheme of the present utility model, so that those skilled in the art understands the utility model further, and do not form the restriction to its right.
With reference to accompanying drawing 1, a kind of emergency power supply unit being applicable to liquid crystal display, be provided with power supply unit 3, power supply unit 3 is ATX power supply, the input of power supply unit 3 is connected with 220V power input line 2, the end of power input line 2 is connected with attaching plug 1, the output of power supply unit 3 is provided with+5V output line 4, + 12V output line 5, power supply starting signal line 8 and ground wire 6, the outer end of described+5V output line 4 and+12V output line 5 is provided with the binding post coordinated with liquid crystal display+5V and+12V power input respectively, the outer end of described ground wire 6 is provided with the binding post be connected with liquid crystal display power ground, be connected by control switch 7 between described power supply starting signal line 8 and ground wire 6.
After determining liquid crystal display power failure, when needing replacement maintenance fast, a desktop computer power supply can be looked for, cut off the line that output is unnecessary, only retain red line, yellow line, black line, each one of green line.Red line is+5V output line 4, yellow line is+12V output line 5, be connected to binding post in the end of these two output lines, during use by binding post directly originally power circuit output end inner with liquid crystal display +12V ,+5V connect.Black line is ground wire 6, and the outer end of ground wire 6 is connected with liquid crystal display power ground by binding post.Green line is power supply starting signal line 8, an indirect control switch 7 of green line and black line.During use, attaching plug 1 is inserted in external ATX supply socket.When needing display to work, only the control switch between green line and black line need be closed 7 conjunctions can start electric power output voltage, and such liquid crystal display just can work.
In order to attractive in appearance, the connecting line between emergency power supply unit and liquid crystal display can be introduced from original liquid crystal display supply socket, and only need to remove original liquid crystal display socket, blend compounds anchor leg, whole repacking circuit completes.
Claims (2)
1. one kind is applicable to the emergency power supply unit of liquid crystal display, it is characterized in that: be provided with power supply unit, the input of power supply unit is connected with 220V power input line, the end of power input line is connected with attaching plug, the output of power supply unit is provided with+5V output line ,+12V output line, power supply starting signal line and ground wire, the outer end of described+5V output line and+12V output line is provided with the binding post coordinated with liquid crystal display+5V and+12V power input respectively, and the outer end of described ground wire is provided with the binding post be connected with liquid crystal display power ground; Be connected by control switch between described power supply starting signal line and ground wire.
2. the emergency power supply unit being applicable to liquid crystal display according to claim 1, is characterized in that: described power supply unit is ATX power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420767416.1U CN204243878U (en) | 2014-12-09 | 2014-12-09 | A kind of emergency power supply unit being applicable to liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420767416.1U CN204243878U (en) | 2014-12-09 | 2014-12-09 | A kind of emergency power supply unit being applicable to liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204243878U true CN204243878U (en) | 2015-04-01 |
Family
ID=52773323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420767416.1U Expired - Fee Related CN204243878U (en) | 2014-12-09 | 2014-12-09 | A kind of emergency power supply unit being applicable to liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204243878U (en) |
-
2014
- 2014-12-09 CN CN201420767416.1U patent/CN204243878U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |