CN203225579U - Switching device for automatic switchover of power supplies - Google Patents
Switching device for automatic switchover of power supplies Download PDFInfo
- Publication number
- CN203225579U CN203225579U CN2013201699067U CN201320169906U CN203225579U CN 203225579 U CN203225579 U CN 203225579U CN 2013201699067 U CN2013201699067 U CN 2013201699067U CN 201320169906 U CN201320169906 U CN 201320169906U CN 203225579 U CN203225579 U CN 203225579U
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- CN
- China
- Prior art keywords
- circuit
- power supply
- detection circuit
- chip microcomputer
- automatic switchover
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Keying Circuit Devices (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
A switching device for automatic switchover between two power supplies comprises a single-chip microcomputer; a signal conversion input circuit connected to the single-chip microcomputer; a voltage detection circuit, a phase sequence detection circuit and a frequency detection circuit that are connected to the signal conversion input circuit; a main power supply circuit connected to the voltage detection circuit, the phase sequence detection circuit and the frequency detection circuit; and a standby power supply circuit. According to the utility model, relevant parameters can be obtained through real-time detection of the circuits and processed by the single-chip microcomputer, and a non-contact control switching element is adopted for execution. Problems in the prior art are solved; automatic switchover between a commonly used power supply and a standby power supply is achieved; and the switching device for automatic switchover of power supplies has the characteristics of being simple in structure, convenient to maintain, easy to install and safe and reliable in use.
Description
Technical field
The utility model relates to a kind of switching device, is specially a kind of for the device for switching that automaticallyes switch between the duplicate supply.
Background technology
For hospital, owing to need the reply emergency, for preventing can not working because outage causes medical instruments and equipment, generally adopt dual power supply, namely when breaking down, one road power supply can switch to the stand-by power supply power supply in the time of can not powering.Under prior art, said process adopts air switch or contactor mostly, is controlled in conjunction with a large amount of relays, and design is complicated, the maintenance cost height, and the poor reliability that automaticallyes switch of its duplicate supply simultaneously is difficult to realize the unattended operation of relevant apparatus.
The utility model content
The technical problems to be solved in the utility model is, a kind of electrical parameter that can detect the two-way power supply is provided, and carry out intelligence according to testing result and switch, and have simple in structure, easy to maintenance, the intelligent automatic transfer switch electrical equipment of characteristics such as simple, safe and reliable is installed.
The automatic power switch device that the utility model proposes, comprise: single-chip microcomputer, the signal conversion input circuit that connects single-chip microcomputer, the voltage detecting, the phase sequence that are connected with signal conversion input circuit detect and frequency detection circuit, detect main power circuit and the stand-by power supply circuit that is connected with frequency detection circuit with voltage detecting, phase sequence.
Wherein, disconnection and the closure that contactless control switch is controlled described main power circuit, described stand-by power supply circuit is set.
The utility model can obtain relevant parameter, and handle by single-chip microcomputer by circuit is detected in real time, carries out by adopting contactless control switch device.Solve the problem that exists under the prior art, realized the automatic switchover between commonly used/stand-by power supply, possessed characteristics such as simple in structure, easy to maintenance, that installation is simple, safe and reliable.
Description of drawings
Fig. 1 is electrical block diagram of the present utility model.
1. main power source 2. stand-by power supplies 3. contactless control switch 4. contactless control switch 5. single-chip microcomputers 6. frequency detection circuits 7. circuit of testing the phase sequence 8. voltage detecting circuits 9. signals are changed input circuits.
Embodiment
The utility model is described further by specific embodiment below in conjunction with accompanying drawing:
In the present embodiment, the automatic power switch device that the utility model proposes comprises: single-chip microcomputer 5, the signal conversion input circuit that connects single-chip microcomputer 5, the voltage detecting, the phase sequence that are connected with signal conversion input circuit detect and frequency detection circuit, detect main power circuit and the stand-by power supply circuit that is connected with frequency detection circuit with voltage detecting, phase sequence, insert the contactless control switch device that main power circuit is connected with single-chip microcomputer 5, insert the contactless control switch device that the stand-by power supply circuit is connected with single-chip microcomputer 5.
Noncontacting switch and noncontacting switch adopt the semiconductor noncontacting switch.
When main power source 1 normal power supply, the contactless control switch device that no matter connects stand-by power supply 2 circuit is in closure or off-state, the contactless control switch 4 of single-chip microcomputer 5 control connection stand-by power supplies 2 circuit disconnects, contactless control switch 3 closures that connect main power circuit are connected load to guarantee main power source 1.
Signal conversion input circuit 9 is used for frequency detection circuit 6, circuit of testing the phase sequence 7, voltage detecting circuit 8 measured signals are converted to digital signal input single-chip microcomputer 5.Single-chip microcomputer 5 implements to detect the circuit of main power source and connection thereof by frequency detection circuit 6, circuit of testing the phase sequence 7, voltage detecting circuit 8.
When main power source 1 breaks down (under-voltage, overvoltage, the phase failure, frequency are high or low excessively), single-chip microcomputer 5 control semiconductor noncontacting switches switched to stand-by power supply 2(with load from main power source 1 in 0. 02 seconds be that contactless control switch 3 disconnects, contactless control switch 4 closures), and in main power source 1 recovery just often, control semiconductor noncontacting switch switched to main power source 1 with stand-by power supply 2 in 0. 02 seconds.
When short trouble appears in load end, single-chip microcomputer 5 controls are connected contactless control switch 4 and are connected contactless control switch 3 with main power source 1 circuit and all disconnect and report to the police device recovery operate as normal after fault is got rid of with stand-by power supply 2 circuit.
Claims (2)
1. automatic power switch device, it is characterized in that: comprising: single-chip microcomputer, the signal conversion input circuit that connects single-chip microcomputer, the voltage detecting, the phase sequence that are connected with signal conversion input circuit detect and frequency detection circuit, detect main power circuit and the stand-by power supply circuit that is connected with frequency detection circuit with voltage detecting, phase sequence.
2. automatic power switch device according to claim 1 is characterized in that: disconnection and closure that contactless control switch is controlled described main power circuit, described stand-by power supply circuit are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201699067U CN203225579U (en) | 2013-04-08 | 2013-04-08 | Switching device for automatic switchover of power supplies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201699067U CN203225579U (en) | 2013-04-08 | 2013-04-08 | Switching device for automatic switchover of power supplies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203225579U true CN203225579U (en) | 2013-10-02 |
Family
ID=49252569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201699067U Expired - Fee Related CN203225579U (en) | 2013-04-08 | 2013-04-08 | Switching device for automatic switchover of power supplies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203225579U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595122A (en) * | 2013-11-29 | 2014-02-19 | 天津铁路信号有限责任公司 | Hot standby switching reliability improving circuit for 25Hz power supply |
| CN105093922A (en) * | 2015-09-18 | 2015-11-25 | 施耐德万高（天津）电气设备有限公司 | High-power no-arc dual-power switching device |
-
2013
- 2013-04-08 CN CN2013201699067U patent/CN203225579U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595122A (en) * | 2013-11-29 | 2014-02-19 | 天津铁路信号有限责任公司 | Hot standby switching reliability improving circuit for 25Hz power supply |
| CN105093922A (en) * | 2015-09-18 | 2015-11-25 | 施耐德万高（天津）电气设备有限公司 | High-power no-arc dual-power switching device |
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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: 20131002 Termination date: 20150408 |
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| EXPY | Termination of patent right or utility model |