CN2766439Y - Automatic switch device for power supply - Google Patents
Automatic switch device for power supply Download PDFInfo
- Publication number
- CN2766439Y CN2766439Y CN 200420074337 CN200420074337U CN2766439Y CN 2766439 Y CN2766439 Y CN 2766439Y CN 200420074337 CN200420074337 CN 200420074337 CN 200420074337 U CN200420074337 U CN 200420074337U CN 2766439 Y CN2766439 Y CN 2766439Y
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- power
- cpu
- power supply
- circuit
- change
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- Expired - Fee Related
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model relates to an automatic changeover device, particularly an automatic changeover device for a power supply, which comprises a power supply changeover switch which is used for changing over a main power supply and a standby power supply. The utility model is characterized in that the automatic changeover device for a power supply also comprises an automatic control part which comprises a signal detection circuit, an A/D changeover circuit, a power supply board, a CPU, a power module and a fire coupling, wherein after the power supply situations of the main power supply and the standby power supply are detected by the signal detection circuit, signals of detection results can be output to the A/D changeover circuit. After the signals pass through the A/D changeover circuit, the signals can be output to the CPU. After the received signals are judged by the CPU, control signals can be output to the power module. The signals can be output to the changeover device of a power supply after the amplification of the power module. Additionally, the fire coupling which is used for ensuring fire protection safety is connected with the CPU and fire protection safe voltage can be output to the CPU. The utility model has the advantages of simple return circuit, convenient maintenance and high reliability.
Description
Technical field
The utility model relates to a kind of automatic switching control equipment, relates in particular to a kind of automatic power-supply switch.
Background technology
At present, the power supply of important loads such as hospital, post and telecommunications office, some industrial and mining enterprises generally can not have a power failure, in case have a power failure heavy losses can take place, even can bring personnel's injures and deaths.Dual power supply is generally all adopted in these places.In case one road power supply breaks down, can in time switch to another road power supply power supply.Be used for this duplicate supply device for switching at present, mostly adopt contactor or air switch, controlled with a large amount of relays, its control loop design is complicated, and it is loaded down with trivial details, difficult in maintenance to construct, and its poor reliability threatens to safety in production simultaneously.And when situations such as these place breaking out of fires,, will cause great threat to people's the security of the lives and property if having little time outage.
Summary of the invention
The purpose of this utility model be to provide a kind of loop simple, easy to maintenance, can in time cut off the power supply, the automatic power-supply switch of good reliability.
The technical solution of the utility model: a kind of automatic power-supply switch, comprise the power change-over switch that is used for switch mains power and stand-by power supply, described power change-over switch includes two-way electric power incoming line that connects main power source and stand-by power supply respectively and the road power outlet that is connected load, it is characterized in that, described automatic power-supply switch also comprises an automatic control section, described automatic control section comprises signal deteching circuit, the A/D change-over circuit, power panel, CPU, power model, fire coupling; Wherein, after signal deteching circuit detects the electric power thus supplied of main power source and stand-by power supply, the testing result signal is outputed to the A/D change-over circuit, behind the A/D change-over circuit, signal is outputed to CPU, after CPU judges the signal of accepting, output control signals to power model, after power model amplifies, export power transfer device to, in addition, be used to guarantee that the fire coupling of security against fire links to each other with CPU, output DC24V voltage is to CPU.Described automatic control section comprises that also the keyboard that a liquid crystal display circuit that is used for video data and are used to be provided with parameter is provided with circuit, liquid crystal display circuit links to each other with CPU, by CPU control, keyboard is provided with circuit and links to each other with CPU, and dateout is controlled to CPU.
The utility model is monitored the AC power analog quantity in real time by a signal deteching circuit, obtain relevant electric parameter, and the processing by cpu circuit, realize the automatic switchover between main power source and the stand-by power supply, have that the loop is simple, easy to maintenance, the characteristics of good reliability, and when breaking out of fire, can connect a DC24V voltage at its fire coupling place, just can make the load of breaking of master controller separating brake, guarantee the safety of electricity consumption.
Description of drawings
Fig. 1: the utility model electrical block diagram.
Embodiment
The utility model is described in further detail below in conjunction with Fig. 1:
Embodiment 1: a kind of automatic power-supply switch, comprise power change-over switch 4, this power change-over switch 4 is used for the two-way electric power incoming line of main power source 2 and stand-by power supply 3 and is connected load 5, the present embodiment automatic power-supply switch is by automatic control section 13 controls, and control section 13 comprises signal deteching circuit 11, A/D change-over circuit 10 automatically, power panel 9, CPU8, power model 1, fire coupling 12; Wherein, the electric power thus supplied of main power source 2 and stand-by power supply 3 is carried out signals collecting by signal deteching circuit 11, and become digital signal to be input to CPU8 analog signal conversion through A/D change-over circuit 10, power panel 9 provides power supply for CPU8 and peripheral control circuit thereof, and the output of CPU8 links to each other with power change-over switch 4 by a power model 1; The control output signal of CPU is after power model 1 amplifies, and driving power diverter switch 4 realizes the automatic switchover of main power source 2 and stand-by power supply 3.Also being provided with fire coupling 12 in the present embodiment links to each other with CPU8, when connecting a DC24V voltage, signal is sent to CPU8, handle through CPU8, after power model 1 amplified, driving power diverter switch 4 made its disconnecting consumers, has guaranteed Electrical Safety again, CPU8 is connected with a liquid crystal display circuit 7 and shows corresponding electric parameter, and CPU8 also connects a keyboard circuit 6 is set.
Current signal is monitored the AC power analog quantity in real time by signal deteching circuit in the present embodiment, obtain relevant electric parameter, and the processing by CPU, signal is amplified the rear drive power change-over switch, realize the switching between main power source and the stand-by power supply, but also be provided with fire coupling, when breaking out of fire or other accidents need be cut off the power supply, as long as feed a DC24V voltage at the fire coupling place, just can make the load of breaking of master controller separating brake, guaranteed the safety of electricity consumption.
Claims (2)
1, a kind of automatic power-supply switch, comprise the power change-over switch that is used for switch mains power and stand-by power supply, described power change-over switch includes two-way electric power incoming line that connects main power source and stand-by power supply respectively and the road power outlet that is connected load, it is characterized in that, described automatic power-supply switch also comprises an automatic control section, described automatic control section comprises signal deteching circuit, the A/D change-over circuit, power panel, CPU, power model, fire coupling; Wherein, after signal deteching circuit detects the electric power thus supplied of main power source and stand-by power supply, the testing result signal is outputed to the A/D change-over circuit, behind the A/D change-over circuit, signal is outputed to CPU, after CPU judges the signal of accepting, output control signals to power model, after power model amplifies, export power transfer device to, in addition, be used to guarantee that the fire coupling of security against fire links to each other with CPU, output DC24V voltage is to CPU.
2, a kind of automatic power-supply switch according to claim 1, it is characterized in that, described automatic control section comprises that also the keyboard that a liquid crystal display circuit that is used for video data and are used to be provided with parameter is provided with circuit, liquid crystal display circuit links to each other with CPU, control by CPU, keyboard is provided with circuit and links to each other with CPU, and dateout is controlled to CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420074337 CN2766439Y (en) | 2004-06-30 | 2004-06-30 | Automatic switch device for power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420074337 CN2766439Y (en) | 2004-06-30 | 2004-06-30 | Automatic switch device for power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2766439Y true CN2766439Y (en) | 2006-03-22 |
Family
ID=36607076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420074337 Expired - Fee Related CN2766439Y (en) | 2004-06-30 | 2004-06-30 | Automatic switch device for power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2766439Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891529A (en) * | 2012-09-13 | 2013-01-23 | 辽宁省电力有限公司葫芦岛供电公司 | Automatic switching device of direct current dual power |
| CN103698622A (en) * | 2012-09-27 | 2014-04-02 | 罗斯蒙德公司 | Hybrid power module with fault detection |
| CN105116263A (en) * | 2015-09-18 | 2015-12-02 | 成都比善科技开发有限公司 | Intelligent power monitoring device |
| CN105301343A (en) * | 2015-09-18 | 2016-02-03 | 成都比善科技开发有限公司 | Power monitoring system of three phase power supply |
| CN105391160A (en) * | 2015-12-28 | 2016-03-09 | 合肥金新允电子技术有限公司 | Double power supply intelligent switching system |
| CN106200525A (en) * | 2016-07-26 | 2016-12-07 | 傲视恒安科技（北京）有限公司 | A kind of changeable centrally connected power supply supply unit being applied to photographic head |
-
2004
- 2004-06-30 CN CN 200420074337 patent/CN2766439Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891529A (en) * | 2012-09-13 | 2013-01-23 | 辽宁省电力有限公司葫芦岛供电公司 | Automatic switching device of direct current dual power |
| CN103698622A (en) * | 2012-09-27 | 2014-04-02 | 罗斯蒙德公司 | Hybrid power module with fault detection |
| CN105116263A (en) * | 2015-09-18 | 2015-12-02 | 成都比善科技开发有限公司 | Intelligent power monitoring device |
| CN105301343A (en) * | 2015-09-18 | 2016-02-03 | 成都比善科技开发有限公司 | Power monitoring system of three phase power supply |
| CN105391160A (en) * | 2015-12-28 | 2016-03-09 | 合肥金新允电子技术有限公司 | Double power supply intelligent switching system |
| CN105391160B (en) * | 2015-12-28 | 2018-08-31 | 合肥金新允电子技术有限公司 | A kind of double-power intelligent switching system |
| CN106200525A (en) * | 2016-07-26 | 2016-12-07 | 傲视恒安科技（北京）有限公司 | A kind of changeable centrally connected power supply supply unit being applied to photographic head |
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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: 20060322 Termination date: 20120630 |