CN107947334A - A kind of two-supply circuit system - Google Patents
A kind of two-supply circuit system Download PDFInfo
- Publication number
- CN107947334A CN107947334A CN201711172224.0A CN201711172224A CN107947334A CN 107947334 A CN107947334 A CN 107947334A CN 201711172224 A CN201711172224 A CN 201711172224A CN 107947334 A CN107947334 A CN 107947334A
- Authority
- CN
- China
- Prior art keywords
- power source
- circuit system
- main power
- load
- contactor
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
-
- 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
-
- 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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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a kind of two-supply circuit system, including：Main power source, stand-by power supply, handover module and load, load and are connected respectively with main power source and stand-by power supply through handover module；Handover module includes first contactor and control unit, and on the one hand the normally-closed contact through first contactor connects main power source with load, and coil of the main power source on the other hand successively through control unit and first contactor is connected with ground wire；Normally opened contact of the stand-by power supply through first contactor is connected with load.Two-supply circuit system provided by the invention, when main power source powers off, stand-by power supply powering load；When main power source recovers normal, load disconnects stand-by power supply, switches back into main power source, improves the stability of circuit system.
Description
Technical field
The present invention relates to a kind of two-supply circuit system.
Background technology
At present, factory and enterprise are generally controlled in order to cost-effective using single supply, and when single supply powers off, equipment is just
It is not normally functioning, halt production stops doing business, and certain economic loss is brought to factory and enterprise.Particularly, for utilizing water pump from depth
Well, which draws water, to be supplied for the factory of work production, when power supply power-fail, it is necessary to go to repair, it is impossible to ensures continuous water supply, to ensure
Normal production operation.More seriously, for the factory for being provided with fire pump, when there is fire when emergency, disappear
Anti- pump can not also work normally, it is impossible to accomplish to save oneself, can not save loss caused by fire in time.
The content of the invention
In view of the shortcomings of the prior art, the object of the present invention is to provide a kind of two-supply circuit system, when main power source powers off
When, stand-by power supply powering load；When main power source recovers normal, load disconnects stand-by power supply, switches back into main power source, improves
The stability of circuit system.
To achieve the above object, the present invention provides a kind of two-supply circuit system, including：Main power source, stand-by power supply, cut
Mold changing block and load, the load are connected with the main power source and the stand-by power supply respectively through the handover module；It is described to cut
Mold changing block includes first contactor and control unit, normally-closed contact and institute of the main power source one side through the first contactor
Load connection is stated, on the other hand the coil successively through described control unit and the first contactor connects the main power source with ground wire
Connect；Normally opened contact of the stand-by power supply through the first contactor is connected with the load.
Compared with prior art, two-supply circuit system disclosed by the invention, when main power source powers off, stand-by power supply is to negative
Carry power supply；When main power source recovers normal, load disconnects stand-by power supply, switches back into main power source, improves the stabilization of circuit system
Property.
Another embodiment according to the present invention, described control unit include switch, and the main power source is successively through described
Switch and the coil of the first contactor are connected with ground wire.
Another embodiment according to the present invention, described control unit include controller, first resistor and first switch
Pipe, coil of the main power source through the first contactor are connected with the output terminal of the first switch pipe；The controller
Output terminal is connected through the first resistor with the control terminal of the first switch pipe, the common port and ground wire of the first switch pipe
Connection.
In the present invention, the first resistor is protective resistance, for being lowered into the electric current of first switch pipe control terminal.
Another embodiment according to the present invention, described control unit further comprise one-way conduction element, the list
It is connected to the anode of breakover element with the main power source, the output of the cathode of the one-way conduction element and the first switch pipe
End connection.
Another embodiment according to the present invention, described control unit further comprise second resistance, second electricity
One end of resistance connects the control terminal of the first switch pipe, and the other end of the second resistance is connected with ground wire.
In the present invention, second resistance is pull down resistor.
Another embodiment according to the present invention, the first switch pipe are triode or transistor.
Another embodiment according to the present invention, the one-way conduction element are diode.
Compared with prior art, two-supply circuit system disclosed by the invention, when main power source powers off, stand-by power supply is to negative
Carry power supply；When main power source recovers normal, load disconnects stand-by power supply, switches back into main power source, improves the stabilization of circuit system
Property；And by setting control unit, further increase the controllability of circuit.
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment, belongs to the scope of protection of the invention.
Brief description of the drawings
Fig. 1 is the circuit diagram for the two-supply circuit system that embodiment 1 provides；
Fig. 2 is the circuit diagram for the two-supply circuit system that embodiment 2 provides.
Embodiment
Embodiment 1
It is the circuit diagram of two-supply circuit system provided in this embodiment referring to Fig. 1.Dual power supply electricity provided in this embodiment
Road system includes：Main power source, stand-by power supply, handover module and load, load through handover module respectively with main power source and standby electricity
Source connects.Handover module includes first contactor and control unit.
In the present embodiment, control module includes switch K1.
On the one hand the normally-closed contact S1A through first contactor is connected main power source with load, on the other hand main power source passes through successively
Switch K1 and the coil S1B of first contactor are connected with ground wire；Normally opened contact S1C of the stand-by power supply through first contactor and load
Connection.
Two-supply circuit system provided in this embodiment, when main power source powers off, stand-by power supply powering load；When main electricity
When source recovers normal, load disconnects stand-by power supply, switches back into main power source, improves the stability of circuit system.
Embodiment 2
It is the circuit diagram of two-supply circuit system provided in this embodiment referring to Fig. 2.Dual power supply electricity provided in this embodiment
Road system includes：Main power source, stand-by power supply, handover module and load, load through handover module respectively with main power source and standby electricity
Source connects.Handover module includes first contactor and control unit.
In the present embodiment, control unit include controller MCU, first resistor R1, second resistance R2, first switch pipe Q1 and
One-way conduction element D1.
On the one hand the normally-closed contact S1A through the first contactor is connected the main power source with the load, the main electricity
On the other hand the coil S1B through the first contactor is connected with the output terminal of the first switch pipe Q1 in source；The controller
The output terminal of MCU is connected through the first resistor R1 with the control terminal of the first switch pipe Q1, the first switch pipe Q1's
Common port is connected with ground wire；The anode of the one-way conduction element D1 is connected with the main power source, the one-way conduction element D1
Cathode be connected with the output terminal of the first switch pipe Q1；One end of the second resistance R2 connects the first switch pipe Q1
Control terminal, the other end of the second resistance R2 is connected with ground wire.The stand-by power supply is normally opened through the first contactor
Contact S1C is connected with the load.
In the present embodiment, first switch pipe Q1 is triode；One-way conduction element D1 is diode.
Two-supply circuit system provided in this embodiment, when main power source powers off, stand-by power supply powering load；When main electricity
When source recovers normal, load disconnects stand-by power supply, switches back into main power source, improves the stability of circuit system；And pass through setting
Control unit, further increases the controllability of circuit.
Although the present invention is disclosed above with preferred embodiment, the scope that the present invention is implemented is not limited to.Any
The those of ordinary skill in field, in the invention scope for not departing from the present invention, improves when can make a little, i.e., every according to this hair
Bright done equal improvement, should be the scope of the present invention and is covered.
Claims (7)
- A kind of 1. two-supply circuit system, it is characterised in that including：Main power source, stand-by power supply, handover module and load, it is described Load is connected with the main power source and the stand-by power supply respectively through the handover module；The handover module includes the first contact Device and control unit, on the one hand the normally-closed contact through the first contactor connects the main power source with the load, the master Coil of the power supply on the other hand successively through described control unit and the first contactor is connected with ground wire；The stand-by power supply warp The normally opened contact of the first contactor is connected with the load.
- 2. two-supply circuit system as claimed in claim 1, it is characterised in that described control unit includes switch, the master Coil of the power supply successively through the switch and the first contactor is connected with ground wire.
- 3. two-supply circuit system as claimed in claim 1, it is characterised in that described control unit includes controller, first Resistance and first switch pipe, coil of the main power source through the first contactor and the output terminal of the first switch pipe connect Connect；The output terminal of the controller is connected through the first resistor with the control terminal of the first switch pipe, the first switch The common port of pipe is connected with ground wire.
- 4. two-supply circuit system as claimed in claim 3, it is characterised in that described control unit further comprises unidirectionally leading Logical element, the anode of the one-way conduction element are connected with the main power source, the cathode of the one-way conduction element and described the The output terminal connection of one switching tube.
- 5. two-supply circuit system as claimed in claim 4, it is characterised in that described control unit further comprises the second electricity Resistance, one end of the second resistance connect the control terminal of the first switch pipe, and the other end and the ground wire of the second resistance connect Connect.
- 6. two-supply circuit system as claimed in claim 3, it is characterised in that the first switch pipe is triode or crystal Pipe.
- 7. two-supply circuit system as claimed in claim 4, it is characterised in that the one-way conduction element is diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711172224.0A CN107947334A (en) | 2017-11-21 | 2017-11-21 | A kind of two-supply circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711172224.0A CN107947334A (en) | 2017-11-21 | 2017-11-21 | A kind of two-supply circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107947334A true CN107947334A (en) | 2018-04-20 |
Family
ID=61929774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711172224.0A Pending CN107947334A (en) | 2017-11-21 | 2017-11-21 | A kind of two-supply circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107947334A (en) |
Citations (12)
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|---|---|---|---|---|
| CN202918048U (en) * | 2012-10-26 | 2013-05-01 | 河南中烟工业有限责任公司 | Automatic transfer switching equipment |
| CN103166309A (en) * | 2013-04-12 | 2013-06-19 | 上海能巍电气科技有限公司 | Automatic switchover switch device with microsecond-scale switchover time |
| CN203504280U (en) * | 2013-09-16 | 2014-03-26 | 福建省力得自动化设备有限公司 | Direct current power supply under-voltage automatic switching system based on microprocessor power supply monitor |
| CN203537056U (en) * | 2013-11-07 | 2014-04-09 | 重庆荣凯川仪仪表有限公司 | Self-recovery device for UPS output fault |
| CN203734374U (en) * | 2013-12-31 | 2014-07-23 | 瑞斯康达科技发展股份有限公司 | Switching circuit for main power supply and stand-by power supply |
| CN104158283A (en) * | 2014-08-01 | 2014-11-19 | 科立讯通信股份有限公司 | Circuit and method for realizing smooth switching of main stand-by power source of communication equipment |
| CN204721087U (en) * | 2015-07-14 | 2015-10-21 | 辽宁科技学院 | Photovoltaic generation and commercial power complementary system control device |
| CN204794337U (en) * | 2015-07-13 | 2015-11-18 | 北京首都机场动力能源有限公司 | Interlock each other is thrown to double loop power supply |
| CN206250838U (en) * | 2016-12-23 | 2017-06-13 | 常熟开关制造有限公司(原常熟开关厂） | D-c solenoid drive circuit and double power supply automatic transfer switch |
| KR20170088157A (en) * | 2016-01-22 | 2017-08-01 | 권익수 | smart driving power supply device |
| CN206595761U (en) * | 2016-11-08 | 2017-10-27 | 天津铁路信号有限责任公司 | A kind of railway signal power supply system dual power supply switching circuit |
| CN107359694A (en) * | 2017-08-24 | 2017-11-17 | 上海德电气科技有限公司 | Backup type contactor maintenance adaptively anti-shake electric installation and its method |
-
2017
- 2017-11-21 CN CN201711172224.0A patent/CN107947334A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202918048U (en) * | 2012-10-26 | 2013-05-01 | 河南中烟工业有限责任公司 | Automatic transfer switching equipment |
| CN103166309A (en) * | 2013-04-12 | 2013-06-19 | 上海能巍电气科技有限公司 | Automatic switchover switch device with microsecond-scale switchover time |
| CN203504280U (en) * | 2013-09-16 | 2014-03-26 | 福建省力得自动化设备有限公司 | Direct current power supply under-voltage automatic switching system based on microprocessor power supply monitor |
| CN203537056U (en) * | 2013-11-07 | 2014-04-09 | 重庆荣凯川仪仪表有限公司 | Self-recovery device for UPS output fault |
| CN203734374U (en) * | 2013-12-31 | 2014-07-23 | 瑞斯康达科技发展股份有限公司 | Switching circuit for main power supply and stand-by power supply |
| CN104158283A (en) * | 2014-08-01 | 2014-11-19 | 科立讯通信股份有限公司 | Circuit and method for realizing smooth switching of main stand-by power source of communication equipment |
| CN204794337U (en) * | 2015-07-13 | 2015-11-18 | 北京首都机场动力能源有限公司 | Interlock each other is thrown to double loop power supply |
| CN204721087U (en) * | 2015-07-14 | 2015-10-21 | 辽宁科技学院 | Photovoltaic generation and commercial power complementary system control device |
| KR20170088157A (en) * | 2016-01-22 | 2017-08-01 | 권익수 | smart driving power supply device |
| CN206595761U (en) * | 2016-11-08 | 2017-10-27 | 天津铁路信号有限责任公司 | A kind of railway signal power supply system dual power supply switching circuit |
| CN206250838U (en) * | 2016-12-23 | 2017-06-13 | 常熟开关制造有限公司(原常熟开关厂） | D-c solenoid drive circuit and double power supply automatic transfer switch |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180420 |
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| RJ01 | Rejection of invention patent application after publication |