CN201910663U - Three-power automatic switching control device - Google Patents

Three-power automatic switching control device Download PDF

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Publication number
CN201910663U
CN201910663U CN2010206873193U CN201020687319U CN201910663U CN 201910663 U CN201910663 U CN 201910663U CN 2010206873193 U CN2010206873193 U CN 2010206873193U CN 201020687319 U CN201020687319 U CN 201020687319U CN 201910663 U CN201910663 U CN 201910663U
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CN
China
Prior art keywords
power
power supply
binding post
output
indicator light
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Expired - Fee Related
Application number
CN2010206873193U
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Chinese (zh)
Inventor
魏鸿琪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YANXIANG ELECTRONIC SCIENCE AND TECHNOLOGY Co Ltd TIANJIN CITY
Original Assignee
YANXIANG ELECTRONIC SCIENCE AND TECHNOLOGY Co Ltd TIANJIN CITY
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Priority to CN2010206873193U priority Critical patent/CN201910663U/en
Application granted granted Critical
Publication of CN201910663U publication Critical patent/CN201910663U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a three-power automatic switching control device. A relay control circuit is arranged in an outer casing, light-passing holes of a state grid supply indicator light, a regional grid supply indicator light, a power generator supply indicator light and an output supply indicator light which are connected with the relay control circuit are formed on the front cover of the outer casing, and both input power source connecting terminals and output connecting terminals are connected with the relay control circuit and respectively arranged on two sides of the outer casing. The input power source connecting terminals comprise an input end zero line connecting terminal of the relay control circuit, a state grid supply connecting terminal, a regional grid supply connecting terminal and a power generator supply connecting terminal. The output connecting terminals comprise an output end zero line connecting terminal of the relay control circuit, a power output connecting terminal, a first output connecting terminal and a second output connecting terminal of control signals. The device has the advantages of simple structure, small size, convenience in installation and maintenance and high performance-price ratio, can be conveniently mounted in a distribution box of a user and can automatically control the switching of a power supply circuit according to the supply power grid.

Description

The automatic conversion control device of three power supplys
Technical field
The utility model belongs to the automatic conversion control device of a kind of power supply, particularly relates to a kind of can control automatically and switch to the automatic conversion control device of three power supplys that regional power grid is powered when the national grid power failure.
Background technology
In order in time to drop into stand-by power supply when mains supply interrupts, prior art has the product of multiple duplicate supply conversion.The big capacity high double-power supply switching device that uses in the power transmission and distribution system is arranged, matured products such as uninterrupted power supply are also arranged.
Number of patent application is 200810127452.0 patent application, a kind of intelligent double-power supply switching device is disclosed, comprise two vacuum circuit breaker main and a mechanical interlocking device, when wherein first vacuum circuit breaker main is in combined floodgate/gate-dividing state, make second vacuum circuit breaker main be in separating brake/"on" position by this mechanical interlocking device.This invention can realize duplicate supply conversion safely and effectively middle and high depressing, and also can utilize the vacuum circuit-breaker self characteristics to make simultaneously and the utlity model has overload and short-circuit protection function.
Number of patent application is 200810127451.6 patent application, a kind of chamber type intelligent duplicate power supply converting switch is disclosed, comprise casing, be arranged on main power source binding post, stand-by power supply binding post, load wiring post on the casing, power supply switching mechanism and a three-phase vacuum breaker device; Described three-phase vacuum breaker device comprises vacuum interrupter, moving contact, fixed contact and corresponding actuating mechanisms; Described power supply switching mechanism comprises three switching contact knifes; Each moving contact/fixed contact in the described three-phase vacuum breaker device is electrically connected with a corresponding switching contact knife in the power supply switching mechanism; Described each main power source binding post and each stand-by power supply binding post are provided with the switching tool rest; The switching tool rest of described each main power source binding post, the switching tool rest of each stand-by power supply binding post and each switching contact knife all are arranged in the casing.Thereby having, this invention avoid the power supply switching mechanism to be exposed to easy the to be oxidized advantage of effectively eliminating in the air because of power supply switching mechanism and switching tool rest of bringing potential safety hazard.
Number of patent application is 201010174958.4 patent application, discloses a kind of dual-power conversion intelligent controller, belongs to the power transmission and distribution field, comprises input/output board, master control borad, signal regulating panel and man-machine interaction plate.Input/output board is provided with switching value input circuit, switching value output circuit, voltage sampling circuit, master control borad is provided with main control board main control circuit and communicating circuit, signal regulating panel is provided with voltage and frequency processing circuit, the man-machine interaction plate is provided with governor circuit, and this governor circuit links to each other with liquid crystal, keyboard, indicator light; Described main control board main control circuit links to each other with governor circuit on switching value input circuit, switching value output circuit and the man-machine interaction plate respectively by I/O, described main control board main control circuit also links to each other with the frequency processing circuit with voltage by A/D, CAP simultaneously, this invention control precision height, real-time is good, graphical display is directly perceived, parameter setting is easy, communication function is strong, can be used for bright standby dual power supply system, also can be used for dark standby dual power supply system.
Number of patent application is 200920252053.7 patent application, discloses a kind of control device of Double Power Switch Controller.It comprises master controller, power circuit, voltage sampling circuit, current sampling circuit, control relay circuit, liquid crystal drive and button sample circuit, clock circuit, communicating circuit and motor status feedback and control circuit.The control device of the Double Power Switch Controller that this utility model provides can detect the state of duplex feeding power supply, when situation such as under-voltage, the superpressure or the phase failure occurring when one road power supply, automatically switches to another road power supply.In addition, when fire occurring, all power supplys can be cut off automatically, remote control and Communication Control can be realized simultaneously.In addition, this control device also has parameter setting, data acquisition and transmission, demonstration and controlled function, has the ability of electric energy metrical and output simultaneously.
In the world, some are in the countries and regions in economic recovery stage, the mains supply instability, in order to guarantee to produce and life, Compact Power Plant has been dropped in some small towns and zone, be power supply in the zone, enterprise and some residents have also provided generator for oneself, so that to guarantee when national grid and regional power grid have a power failure serve as own production and live and power.The application of the automatic conversion control device of power supply can provide perfect power management for these users.
Summary of the invention
The utility model provides a kind of compact conformation, cost performance height, the automatic conversion control device of three power supplys convenient for installation and maintenance for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: the automatic conversion control device of a kind of three power supplys, include shell body and be arranged on the interior control relay circuit of shell body, the protecgulum of described shell body is provided with the light hole of the national grid power supply indicator light, regional power grid power supply indicator light, generator powered indicator light and the output power supply indicator light that link to each other with control relay circuit, and the both sides of described shell body are respectively arranged with wiring of input power source terminal and the output wiring terminal that links to each other with control relay circuit.
Described wiring of input power source terminal is fixedly installed on a left side/right panel of shell body, includes: the input zero line binding post of control relay circuit, national grid power supply binding post, regional power grid power supply binding post, generator powered binding post.
Described output wiring terminal is fixedly installed on the right side/Left-Hand Panel of shell body, includes: the output zero line binding post of control relay circuit, electric power output wiring terminal, control signal first output wiring terminal and second output wiring terminal.
Described control relay circuit includes first power relay and second power relay, wherein, the fixed contact of the auxiliary normally opened contact group of described first power relay connects the first control signal output wiring terminal, and moving contact connects the second control signal output wiring terminal; Input zero line binding post connects output zero line binding post by lead; The zero line termination input zero line binding post of described first power relay and the second power relay coil and output zero line binding post; The moving contact of the fixed contact of the normally opened contact group of described first power relay, the normally-closed contact group of second power relay and normally opened contact group all is connected the phase line end of the first power relay coil, the normally opened contact group of described first power relay and the moving contact of normally-closed contact group are connected the phase line end of electric power output wiring terminal and output power supply indicator light jointly, and the fixed contact of the described first power relay normally-closed contact group connects the phase line end of generator powered binding post and generator powered indicator light; The fixed contact of the normally opened contact group of described second power relay connects the phase line end of the second power relay coil respectively, the phase line end of national grid power supply binding post and national grid power supply indicator light, the phase line end of the fixed contact difference join domain mains supply binding post of the normally-closed contact group of described second power relay and regional power grid power supply indicator light, described national grid power supply indicator light, regional power grid power supply indicator light, the zero line side of generator powered indicator light and output power supply indicator light all is connected on input zero line binding post and the lead that output zero line binding post links to each other.
Advantage and the good effect that the utlity model has are: the automatic conversion control device of three power supplys of the present utility model, two power relays, four LED light and eight binding post modules only have been to use, simple in structure, overall dimension is little, can be installed in user's the distribution box easily, convenient for installation and maintenance, the cost performance height.The utility model can be when the national grid power failure, automatically control switches to the regional power grid power supply, when national grid and the equal interruption of power supply of regional power grid, sends startup generating signal to generator, and connection generator powered loop, when generator powered,, just be converted to the regional power grid power supply immediately in case regional power grid restores electricity, control generator simultaneously and withdraw from power supply, and when national grid restores electricity, cut off regional power grid and generator powered loop, connect the national grid current supply circuit.
Description of drawings
Fig. 1 is the Facad structure signal of the utility model shell body;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the vertical view of Fig. 1;
Fig. 5 is the circuit theory diagrams of the utility model control relay circuit;
Fig. 6 is the circuit state schematic diagram of the utility model control relay circuit when regional power grid is powered;
Fig. 7 is the circuit state schematic diagram of the utility model control relay circuit when national grid is powered;
Label among the figure is respectively:
1-shell body; 2-protecgulum; N1-input zero line binding post; N2-output zero line binding post; MAINS-national grid power supply binding post; AG-regional power grid power supply binding post; HG-generator powered binding post; P-electric power output wiring terminal; TRIP 1-control signal first output wiring terminal; TRIP 2-control signal second output wiring terminal; KA1-first power relay; One group of normally-closed contact of KA1-1-KA1; One group of normally opened contact of KA1-2-KA1; One group of auxiliary normally opened contact of KA1-3-KA1; KA2-second power relay; One group of normally-closed contact of KA2-1-KA2; One group of normally opened contact of KA2-2-KA2; LED1-national grid power supply indicator light; LED2-regional power grid power supply indicator light; LED3-generator powered indicator light; LED4-output power supply indicator light.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, enumerate following examples now, and conjunction with figs. to describe the automatic conversion control device of three power supplys of the present utility model in detail as follows:
The automatic conversion control device of three power supplys of the present utility model, include shell body 1 that constitutes by panel beating or plastics and the control relay circuit that is arranged in the shell body 1, the protecgulum 2 of described shell body 1 is provided with the light hole of the national grid power supply indicator light LED1, regional power grid power supply indicator light LED2, generator powered indicator light LED3 and the output power supply indicator light LED4 that link to each other with control relay circuit, and the both sides of described shell body are respectively arranged with wiring of input power source terminal and the output wiring terminal that links to each other with control relay circuit.
Described wiring of input power source terminal is fixedly installed on a left side/right panel of shell body, includes: the input zero line binding post N1 of control relay circuit, national grid power supply binding post MAINS, regional power grid power supply binding post AG, generator powered binding post HG.
Described output wiring terminal is fixedly installed on the right side/Left-Hand Panel of shell body, includes: output zero line binding post N2, the electric power output wiring terminal P of control relay circuit, the control signal first output wiring terminal TRIP 1 and the second output wiring terminal TRIP 2.
Described control relay circuit includes: the first power relay KA1 and the second power relay KA2, wherein, the fixed contact of the auxiliary normally opened contact group KA1-3 of the described first power relay KA1 connects the first control signal output wiring terminal TRIP 1, and moving contact connects the second control signal output wiring terminal TRIP 2; Input zero line binding post N1 connects output zero line binding post N2 by lead; The zero line termination input zero line binding post N1 of the described first power relay KA1 and the second power relay KA2 coil and output zero line binding post N2; The fixed contact of the normally opened contact group KA1-2 of the described first power relay KA1, the normally-closed contact group KA2-1 of the second power relay KA2 and the moving contact of normally opened contact group KA2-2 all are connected the phase line end of the first power relay KA1 coil, the normally opened contact group KA1-2 of the described first power relay KA1 and the moving contact of normally-closed contact group KA1-1 are connected the phase line end of electric power output wiring terminal P and output power supply indicator light LED4 jointly, and the fixed contact of the described first power relay KA1 normally-closed contact group KA1-1 connects the phase line end of generator powered binding post HG and generator powered indicator light LED3; The fixed contact of the normally opened contact group KA2-2 of the described second power relay KA2 connects the phase line end of the second power relay KA2 coil respectively, the phase line end of national grid power supply binding post MAINS and national grid power supply indicator light LED1, the phase line end of the fixed contact difference join domain mains supply binding post AG of the normally-closed contact group KA2-1 of the described second power relay KA2 and regional power grid power supply indicator light LED2, described national grid power supply indicator light LED1, regional power grid power supply indicator light LED2, the zero line side of generator powered indicator light LED3 and output power supply indicator light LED4 all is connected on input zero line binding post N1 and the lead that output zero line binding post N2 links to each other.
The control principle of the automatic conversion control device of three power supplys of the present utility model is described below:
When national grid and regional power grid are all stopped power supply by generator powered, the circuit state of control relay circuit as shown in Figure 5, because national grid and regional power grid be not power supply all, the first power relay KA1 dead electricity, the auxiliary normally opened contact group KA1-3 of KA1 is an off-state, the switching value signal that first output wiring terminal TRIP 1 of control signal and the second output wiring terminal TRIP, 2 outputs disconnect, generator obtains this switching value signal and is in startup generating power supply state, the zero line in generator powered loop is by the zero line binding post N1 of input, inner connection lead, N2 is connected with output zero line binding post, the zero line of electrical appliance power supply input is connected by control relay circuit and generator powered zero line, the phase line in generator powered loop, generator powered binding post HG by input, the normally-closed contact group KA1-1 of the first power relay KA1 closure, internal connecting wire, connect with electrical appliance electric power output wiring terminal P, the phase line of electrical appliance power supply input is connected by control relay circuit and generator powered phase line, make electrical appliance obtain generator powered, at this moment, bright with the loop-coupled generator powered indicator light of generator powered LED3 in the control relay circuit is subjected to electric loop-coupled output power supply indicator light LED4 bright with electrical appliance.
Stop power supply at national grid, during the regional power grid power supply, the circuit state of control relay circuit as shown in Figure 6, the zero line of regional power grid power supply is by the zero line binding post N1 of input, inner connection lead, N1 is connected with output zero line binding post, the zero line of electrical appliance power supply input is connected by control relay circuit and regional power grid power supply zero line, the zero line side of the first power relay KA1 coil and regional power grid power supply zero line are connected, the phase line of regional power grid power supply, regional power grid power supply binding post AG by input, the normally-closed contact group KA2-1 of the second closed power relay KA2, inner connection lead, the phase line end of the first power relay KA1 coil is connected with regional power grid power supply binding post AG, the second power relay KA2 gets electric adhesive, the normally opened contact group KA1-2 closure of the first power relay KA1, pass through internal connecting wire, the phase line of electrical appliance electric power output wiring terminal P and regional power grid power supply is connected, and makes electrical appliance obtain the regional power grid power supply; Simultaneously, the normally-closed contact group KA1-1 of the first power relay KA1 disconnects, and has cut off generator powered circuit in the control relay circuit; Consider the auxiliary normally opened contact group KA1-3 closure of the first power relay KA1, make output control signal first output wiring terminal TRIP 1 and the closed switching value signal of the second output wiring terminal TRIP 2 output, generator obtains this switching value signal to carry out generation outage and withdraws from power supply state; At this moment, the regional power grid that is connected with the regional power grid current supply circuit power supply indicator light LED2 in the control relay circuit is bright, is subjected to electric loop-coupled output power supply indicator light LED4 bright with electrical appliance.
When national grid is powered, the circuit state of control relay circuit as shown in Figure 7, during the national grid power supply, the first power relay KA1 and the second power relay KA2 all electric adhesive, the normally-closed contact group KA1-1 of the first power relay KA1 disconnects, cut off the generator powered loop, the normally-closed contact group KA2-1 of the second power relay KA2 disconnects, cut off the regional power grid current supply circuit, the normally opened contact group KA1-2 closure of the first power relay KA1, the normally opened contact group KA2-2 closure of the second power relay KA2, auxiliary normally opened contact group KA1-3 closure, the phase line of output electrical appliance electric power output wiring terminal P and national grid power supply is connected, and makes electrical appliance obtain the national grid power supply; The auxiliary normally opened contact group KA1-3 closure of the first power relay KA1, make output control signal first output wiring terminal TRIP 1 and the closed switching value signal of the second output wiring terminal TRIP 2 output, generator obtains this switching value signal to carry out generation outage and withdraws from power supply state; At this moment, the national grid that is connected with the national grid current supply circuit power supply indicator light LED1 in the control relay circuit is bright, is subjected to electric loop-coupled output power supply indicator light LED4 bright with electrical appliance.If this moment, regional power grid was still powered, the regional power grid power supply indicator light LED2 that then is connected with the regional power grid current supply circuit is bright.
As mentioned above, the national grid power supply has highest priority, no matter be in generator powered or the regional power grid power supply state, as long as national grid restores electricity, the automatic conversion control device of three power supplys of the present utility model inside will disconnect generator powered and regional power grid current supply circuit, connects the national grid current supply circuit.
The automatic conversion control device of three power supplys of the present utility model, design has four LED light, indicates national grid power supply, regional power grid power supply, generator powered and power supply output state respectively.
As mentioned above, the automatic conversion control device of three power supplys of the present utility model, can be when the national grid power failure, automatically control switches to the regional power grid power supply, when national grid and the equal interruption of power supply of regional power grid, send startup generating signal to generator, and connection generator powered loop, when generator powered,, just be converted to the regional power grid power supply immediately in case regional power grid restores electricity, control generator simultaneously and withdraw from power supply, and when national grid restores electricity, cut off regional power grid and generator powered loop, connect the national grid current supply circuit.

Claims (4)

1. automatic conversion control device of power supply, include shell body (1) and be arranged on the interior control relay circuit of shell body (1), it is characterized in that, the protecgulum (2) of described shell body (1) is provided with the national grid power supply indicator light (LED1) that links to each other with control relay circuit, regional power grid power supply indicator light (LED2), the light hole of generator powered indicator light (LED3) and output power supply indicator light (LED4), the both sides of described shell body (1) are respectively arranged with wiring of input power source terminal and the output wiring terminal that links to each other with control relay circuit.
2. the automatic conversion control device of three power supplys according to claim 1, it is characterized in that, described wiring of input power source terminal is fixedly installed on a left side/right panel of shell body, includes: the input zero line binding post (N1) of control relay circuit, national grid power supply binding post (MAINS), regional power grid power supply binding post (AG), generator powered binding post (HG).
3. the automatic conversion control device of three power supplys according to claim 1, it is characterized in that, described output wiring terminal is fixedly installed on the right side/Left-Hand Panel of shell body, includes: the output zero line binding post (N2) of control relay circuit, electric power output wiring terminal (P), control signal first output wiring terminal (TRIP 1) and second output wiring terminal (TRIP 2).
4. the automatic conversion control device of three power supplys according to claim 1, it is characterized in that, described control relay circuit includes first power relay (KA1) and second power relay (KA2), wherein, the fixed contact of the auxiliary normally opened contact group (KA1-3) of described first power relay (KA1) connects the first control signal output wiring terminal (TRIP 1), and moving contact connects the second control signal output wiring terminal (TRIP 2); Input zero line binding post (N1) connects output zero line binding post (N2) by lead; The zero line termination input zero line binding post (N1) of described first power relay (KA1) and second power relay (KA2) coil and output zero line binding post (N2); The fixed contact of the normally opened contact group (KA1-2) of described first power relay (KA1), the normally-closed contact group (KA2-1) of second power relay (KA2) and the moving contact of normally opened contact group (KA2-2) all are connected the phase line end of first power relay (KA1) coil, the normally opened contact group (KA1-2) of described first power relay (KA1) and the moving contact of normally-closed contact group (KA1-1) are connected the phase line end of electric power output wiring terminal (P) and output power supply indicator light (LED4) jointly, and the fixed contact of described first power relay (KA1) normally-closed contact group (KA1-1) connects the phase line end of generator powered binding post (HG) and generator powered indicator light (LED3); The fixed contact of the normally opened contact group (KA2-2) of described second power relay (KA2) connects the phase line end of second power relay (KA2) coil respectively, the phase line end of national grid power supply binding post (MAINS) and national grid power supply indicator light (LED1), the fixed contact difference join domain mains supply binding post (AG) of the normally-closed contact group (KA2-1) of described second power relay (KA2) and the phase line end of regional power grid power supply indicator light (LED2), described national grid power supply indicator light (LED1), regional power grid power supply indicator light (LED2), the zero line side of generator powered indicator light (LED3) and output power supply indicator light (LED4) all is connected on input zero line binding post (N1) and the lead that output zero line binding post (N2) links to each other.
CN2010206873193U 2010-12-29 2010-12-29 Three-power automatic switching control device Expired - Fee Related CN201910663U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206873193U CN201910663U (en) 2010-12-29 2010-12-29 Three-power automatic switching control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206873193U CN201910663U (en) 2010-12-29 2010-12-29 Three-power automatic switching control device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103001316A (en) * 2012-12-28 2013-03-27 广东康菱动力科技有限公司 Intelligent control system for emergency generating set
CN104079060A (en) * 2014-06-24 2014-10-01 广东易事特电源股份有限公司 Three-way power source switchover circuit and method
CN104701840A (en) * 2015-03-12 2015-06-10 杭州德洛电力设备有限公司 Intelligent three-power automatic transfer switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103001316A (en) * 2012-12-28 2013-03-27 广东康菱动力科技有限公司 Intelligent control system for emergency generating set
CN104079060A (en) * 2014-06-24 2014-10-01 广东易事特电源股份有限公司 Three-way power source switchover circuit and method
CN104701840A (en) * 2015-03-12 2015-06-10 杭州德洛电力设备有限公司 Intelligent three-power automatic transfer switch

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110727

Termination date: 20191229

CF01 Termination of patent right due to non-payment of annual fee