CN209488258U - A kind of air door of main fan dual power supply automatic switching device - Google Patents
A kind of air door of main fan dual power supply automatic switching device Download PDFInfo
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- CN209488258U CN209488258U CN201920508506.1U CN201920508506U CN209488258U CN 209488258 U CN209488258 U CN 209488258U CN 201920508506 U CN201920508506 U CN 201920508506U CN 209488258 U CN209488258 U CN 209488258U
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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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Abstract
The utility model discloses a kind of air door of main fan dual power supply automatic switching devices, including the first A.C. contactor, the second A.C. contactor, intermediate relay, control loop power switch QF ', main power switch QF1 and Backup Power Switch QF2, first A.C. contactor includes coil K11, normally-closed contact K12 and three road normally opened contact K13, second A.C. contactor includes coil K21, normally-closed contact K22 and three road normally opened contact K23, and intermediate relay includes coil KA1, normally-closed contact KA2 and normally opened contact KA3；The utility model has the advantage of mine main ventilator power supply fast switching device avoids virtual connection from causing high current using electrical interlocks mechanism, guarantees safe production.
Description
Technical field
The utility model relates to mine main ventilator power supplys to switch field, be more particularly to a kind of double electricity of air door of main fan
Source automatic switching control equipment.
Background technique
Currently, mostly referred to as " double power-supply automatic transferring is opened with the product with Dual-power automatic switching function in industry
Pass ", or " automatic transfer switching electric appliance ", abbreviation ATS are used primarily in emergency power supply system, certainly from a power supply by load circuit
Move the device for switching for being connected to another way power supply, reliability is most important.ATS is generally made of two parts: Switch main body+
Controller, what majority was equipped with is current release, is made of two breakers and mechanical chain, has short-circuit protection function.Work
Industry is expensive with ATS, famous brand name product thousands of members if the prices such as ABB, Siemens are low, up to tens of thousands of members.ATS application is wide
It is general, but its outstanding problem is that its own mechanical trip speed and reliability requirement are high, in its actuating mechanism there are slide fastener, again
Button, the movement of mechanism bite is not in place, and virtual connection is led to problems such as to cause high current.
Utility model content
The technical problem to be solved by the utility model is to the mine main ventilator power supply fast switching devices of the prior art to adopt
With mechanical chain, mechanism easily leads to the problem of virtual connection causes high current.
The utility model is to solve a kind of above-mentioned technical problem: air door of main fan dual power supply by the following technical programs
Automatic switching control equipment, including the first A.C. contactor, the second A.C. contactor, intermediate relay, control loop power switch
QF ', main power switch QF1 and Backup Power Switch QF2, first A.C. contactor include coil K11, normally-closed contact
K12 and three road normally opened contact K13, second A.C. contactor include the normally opened touching of coil K21, normally-closed contact K22 and three tunnels
Point K23, the intermediate relay include coil KA1, normally-closed contact KA2 and normally opened contact KA3；
The first terminals, third terminals and the 5th terminals of the main power switch QF1 respectively with air door power distribution cabinet
L1, L2, L3 connecting terminal of 2PD connects；The 4th terminals and the 6th terminals of the main power switch QF1 respectively with control
The first terminals of ring current switch QF ' are connected with third terminals, the second wiring of the control loop power switch QF '
End is connect by normally opened contact KA3 with one end of coil K11, and the 4th terminals of the control loop power switch QF ' pass through
Normally-closed contact K22 is connect with the other end of coil K11；One end of the coil KA1 connects the control loop power switch QF '
The second terminals, the other end of the coil KA1 connects the 4th terminals of the control loop power switch QF '；
One end of the three roads normally opened contact K13 respectively with the second terminals of main power switch QF1, the 4th terminals and
The connection of 6th terminals, the other end of the three roads normally opened contact K13 are connect with three-phase power line U, V, W of motor M respectively；
The first terminals, third terminals and the 5th terminals of the Backup Power Switch QF2 respectively with air door distribution
L1, L2, L3 connecting terminal of cabinet 6PD connects；The second terminals, the 4th terminals and the 6th of the Backup Power Switch QF2
Terminals are connect with three-phase power line U, V, W of motor M respectively；The 4th terminals of the Backup Power Switch QF2 pass through normal
Closed contact KA2 is connect with one end of coil K21, the 6th terminals of the Backup Power Switch QF2 by normally-closed contact K12 with
The other end of coil K21 connects.
Preferably, the main power switch QF1 and Backup Power Switch QF2 is breaker of plastic casing NM1 series.
Preferably, the control loop power switch QF ' is NBE7 miniature circuit breaker.
Preferably, the model CJX0901 of first A.C. contactor and the second A.C. contactor.
Preferably, the intermediate relay model MY2N-J.
The utility model has the advantage that compared with prior art
(1) mechanical chain is designed to electricity by the dual power supply automatic switching device being made of breaker and A.C. contactor etc.
Gas is chain, avoids slide fastener existing for mechanical chain mechanism, buckles again, and the movement of mechanism bite is not in place, and virtual connection is caused to cause big electricity
The problems such as stream, improves the rapidity and reliability of power supply switching.
(2) under air door of main fan power failure condition, it can be switched fast power supply, make air door quick acting, guarantee wind
Machine is smoothly opened, and guarantees the safety of power supply switching, and in trouble power line short, the quick disjunction of energy, does not influence spare
Power supply works normally.
Detailed description of the invention
Fig. 1 is a kind of electricity of air door of main fan dual power supply automatic switching device provided by the utility model embodiment
Road schematic diagram.
Specific embodiment
It elaborates below to the embodiments of the present invention, the present embodiment before being with technical solutions of the utility model
It puts and is implemented, the detailed implementation method and specific operation process are given, but the protection scope of the utility model is unlimited
In following embodiments.
As shown in Figure 1, a kind of air door of main fan dual power supply automatic switching device, including the first A.C. contactor, second
A.C. contactor, intermediate relay, control loop power switch QF ', main power switch QF1 and Backup Power Switch QF2, institute
Stating the first A.C. contactor includes coil K11, normally-closed contact K12 and three road normally opened contact K13, the second A.C. contactor packet
Including coil K21, normally-closed contact K22 and three road normally opened contact K23, the intermediate relay includes coil KA1, normally-closed contact
KA2 and normally opened contact KA3；
The first terminals, third terminals and the 5th terminals of the main power switch QF1 respectively with air door power distribution cabinet
L1, L2, L3 connecting terminal of 2PD connects；The 4th terminals and the 6th terminals of the main power switch QF1 respectively with control
The first terminals of ring current switch QF ' are connected with third terminals, the second wiring of the control loop power switch QF '
End is connect by normally opened contact KA3 with one end of coil K11, and the 4th terminals of the control loop power switch QF ' pass through
Normally-closed contact K22 is connect with the other end of coil K11；One end of the coil KA1 connects the control loop power switch QF '
The second terminals, the other end of the coil KA1 connects the 4th terminals of the control loop power switch QF '；
One end of the three roads normally opened contact K13 respectively with the second terminals of main power switch QF1, the 4th terminals and
The connection of 6th terminals, the other end of the three roads normally opened contact K13 are connect with three-phase power line U, V, W of motor M respectively；
The first terminals, third terminals and the 5th terminals of the Backup Power Switch QF2 respectively with air door distribution
L1, L2, L3 connecting terminal of cabinet 6PD connects；The second terminals, the 4th terminals and the 6th of the Backup Power Switch QF2
Terminals are connect with three-phase power line U, V, W of motor M respectively；The 4th terminals of the Backup Power Switch QF2 pass through normal
Closed contact KA2 is connect with one end of coil K21, the 6th terminals of the Backup Power Switch QF2 by normally-closed contact K12 with
The other end of coil K21 connects.
Specifically, the main power switch QF1 and Backup Power Switch QF2 are breaker of plastic casing NM1 series.
Specifically, the control loop power switch QF ' is NBE7 miniature circuit breaker.
Specifically, the model CJX0901 of first A.C. contactor and the second A.C. contactor.
Specifically, the intermediate relay model MY2N-J.
The working principle of the utility model are as follows:
Under normal circumstances, main power switch QF1 is closed, Backup Power Switch QF2 is closed, and control loop power switch QF ' is closed, in
Between the coil KA1 of relay obtain electric, the normally opened contact KA3 of intermediate relay closure, the coil K11 of the first A.C. contactor is obtained
Electricity, the three road normally opened contact K13 closure of the first A.C. contactor, for air door actuating motor M power supply；Meanwhile intermediate relay
Normally-closed contact KA2 is disconnected and the normally-closed contact K12 of the first A.C. contactor is disconnected, and is latched, is exited standby to the second A.C. contactor
Use power supply.When mains power failure, the coil KA1 power loss of intermediate relay, the coil K11 power loss of the first A.C. contactor, the
Three road normally opened contact K13 of one A.C. contactor are disconnected, and exit main power source, and the normally-closed contact KA2 of intermediate relay and first
The normally-closed contact K12 of A.C. contactor resets closure, and the coil K21 of the second A.C. contactor is made to obtain electric, the second A.C. contactor
Three road normally opened contact K23 closure, in-put of spare power supply is used.Meanwhile second A.C. contactor normally-closed contact K22 it is disconnected
It opens, the control loop of the main power source of disengagement failure, realizes locking.
By above technical scheme, a kind of air door of main fan dual power supply automatic switching device provided by the utility model,
It is connect by the normally-closed contact K12 of the first A.C. contactor and the normally-closed contact KA2 of intermediate relay and is returned in power supply where coil K21
Road, the normally-closed contact K22 of the second A.C. contactor connect in electric power loop where coil K11, realize electrical interlocks, avoid machinery
Slide fastener existing for interlocking gear is buckled again, and the movement of mechanism bite is not in place, and virtual connection is led to problems such as to cause high current, improves power supply
The rapidity and reliability of switching.Under mine main ventilator air door power failure condition, it can be quickly switched into backup power source, made
Air door quick acting guarantees that blower is smoothly opened, guarantees the safety of power supply switching, the energy in trouble power line short
Quick disjunction does not influence backup power source normal work.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (5)
1. a kind of air door of main fan dual power supply automatic switching device, which is characterized in that handed over including the first A.C. contactor, second
Contactor, intermediate relay, control loop power switch QF ', main power switch QF1 and Backup Power Switch QF2 are flowed, it is described
First A.C. contactor includes coil K11, normally-closed contact K12 and three road normally opened contact K13, second A.C. contactor include
Coil K21, normally-closed contact K22 and three road normally opened contact K23, the intermediate relay include coil KA1, normally-closed contact KA2
And normally opened contact KA3；
The first terminals, third terminals and the 5th terminals of the main power switch QF1 are respectively with air door power distribution cabinet 2PD's
The connection of L1, L2, L3 connecting terminal；The 4th terminals and the 6th terminals of the main power switch QF1 respectively with control loop
The first terminals of power switch QF ' are connected with third terminals, and the second terminals of the control loop power switch QF ' are logical
It crosses normally opened contact KA3 to connect with one end of coil K11, the 4th terminals of the control loop power switch QF ' pass through normally closed
Contact K22 is connect with the other end of coil K11；One end of the coil KA1 connects the of the control loop power switch QF '
Two terminals, the other end of the coil KA1 connect the 4th terminals of the control loop power switch QF '；
One end of the three roads normally opened contact K13 respectively with the second terminals of main power switch QF1, the 4th terminals and the 6th
Terminals connection, the other end of the three roads normally opened contact K13 are connect with three-phase power line U, V, W of motor M respectively；
The first terminals, third terminals and the 5th terminals of the Backup Power Switch QF2 respectively with air door power distribution cabinet 6PD
L1, L2, L3 connecting terminal connection；The second terminals, the 4th terminals and the 6th terminals of the Backup Power Switch QF2
It is connect respectively with three-phase power line U, V, W of motor M；The 4th terminals of the Backup Power Switch QF2 pass through normally-closed contact
KA2 is connect with one end of coil K21, and the 6th terminals of the Backup Power Switch QF2 pass through normally-closed contact K12 and coil
The other end of K21 connects.
2. a kind of air door of main fan dual power supply automatic switching device according to claim 1, which is characterized in that the master
Power switch QF1 and Backup Power Switch QF2 is breaker of plastic casing NM1 series.
3. a kind of air door of main fan dual power supply automatic switching device according to claim 1, which is characterized in that the control
Ring current switch QF ' processed is NBE7 miniature circuit breaker.
4. a kind of air door of main fan dual power supply automatic switching device according to claim 1, which is characterized in that described
The model CJX0901 of one A.C. contactor and the second A.C. contactor.
5. a kind of air door of main fan dual power supply automatic switching device according to claim 1, which is characterized in that in described
Between relay model MY2N-J.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920508506.1U CN209488258U (en) | 2019-04-12 | 2019-04-12 | A kind of air door of main fan dual power supply automatic switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920508506.1U CN209488258U (en) | 2019-04-12 | 2019-04-12 | A kind of air door of main fan dual power supply automatic switching device |
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| Publication Number | Publication Date |
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| CN209488258U true CN209488258U (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920508506.1U Active CN209488258U (en) | 2019-04-12 | 2019-04-12 | A kind of air door of main fan dual power supply automatic switching device |
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| CN (1) | CN209488258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931863A (en) * | 2020-06-29 | 2022-01-14 | 深圳市金色曙光科技有限公司 | Control circuit of exhaust fan system |
-
2019
- 2019-04-12 CN CN201920508506.1U patent/CN209488258U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931863A (en) * | 2020-06-29 | 2022-01-14 | 深圳市金色曙光科技有限公司 | Control circuit of exhaust fan system |
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