CN206611398U - A kind of fire-fighting electronic on-off circuit with interlock function - Google Patents
A kind of fire-fighting electronic on-off circuit with interlock function Download PDFInfo
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- CN206611398U CN206611398U CN201720116639.5U CN201720116639U CN206611398U CN 206611398 U CN206611398 U CN 206611398U CN 201720116639 U CN201720116639 U CN 201720116639U CN 206611398 U CN206611398 U CN 206611398U
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Abstract
The utility model discloses a kind of fire-fighting electronic on-off circuit with interlock function, including rectifier bridge BR1, rectifier bridge BR2, triode Q1, unidirectional thyristor SCR1 and photo-coupler U1, the connection fuse F1 of port 1 of the rectifier bridge BR1, rectifier bridge BR1 port 2 connects resistance R1, unidirectional thyristor SCR1 anode and unidirectional thyristor T1 anode, and the resistance R1 other end connects resistance R6 and triode Q1 colelctor electrode.The beneficial effects of the utility model are：(1) using controllable silicon as switching device, the life requirements that achievable product is frequently switched on (open and close number of times is far longer than mechanical contact).(2) interlocking is realized in live wire and load circuit, fire-fighting live wire and load circuit, two loops, i.e.,：During one loop conducting, another loop is not turned on.(3) product without initialization, without being first powered to zero line, fire-fighting loop can direct-electrifying work, it is reliable and stable.
Description
Technical field
The utility model is related to a kind of electronic switch, specifically a kind of fire-fighting electronic on-off circuit with interlock function.
Background technology
The normal work loop of electronic switch is between live wire and load, when switching standby and disconnects load, electronic cutting
The triggering and conducting form of pass is relatively more, such as：Press, touch, acousto-optic control, the various modes such as infrared ray are (by these triggering shapes
Formula realizes normal ON loaded work piece), but when there is the generation of the fire conditions such as fire, be electrified to fire-fighting zero line, then electronics
Switch can be forcibly turned on load (being usually illuminating lamp), i.e.,：Play the purposes such as pressure ambient lighting.
Electronics fireman's switch at present on the market is main by following several wiring and control mode：
(1) 4 wire type electronics fireman's switch, the mode of connection：Live wire, fire-fighting live wire, zero line, load line.
Such fireman's switch wiring is cumbersome, and is mechanical contact, and the life-span is undesirable.
(2) one kind is 3 wire type electronics fireman's switch, the mode of connection：Live wire, fire-fighting live wire (signal control), load line.
The fire line of such switch is to play signal control action, after being electrified to fire-fighting live wire, is actually turned on loop
It is still that live wire and load form loop.And be that fire-fighting live wire has strict requirements the problem of maximum：Fire-fighting live wire is necessary
It is special, it is impossible to connect any electrical appliance (such as emergency light, emergency exit indicating lamp) beyond this type fireman's switch, using there is office
It is sex-limited.
(3) another 3 wire type electronics fireman's switch, the mode of connection：Live wire, fire-fighting live wire (actual power), load line.
The fire line of such switch can directly powering load, but product on the market uses relay mostly at present
(contain magnetic latching relay) is realized, this type fireman's switch cost is high and is mechanical contact, the life-span is undesirable, and greatest problem is
Product stability is poor, and is necessarily required using the fireman's switch of magnetic latching relay to just can normally making after zero line normal power-up
With the original state otherwise switched is not known.
This type switch early stage can not be using controllable silicon as switching device, because two-way input (live wire, fire-fighting live wire)
Output (shared load) can not realize interlocking (i.e. to correspondence all the way：Input all the way after being connected with load, another road can not then be turned on),
Otherwise after normal switch loop (loop between live wire and load) conducting, if fire-fighting loop (fire-fighting live wire and load
Between loop) not positive closing, then live wire directly will lead to fire-fighting zero line by load end, and the fire of this switch
Line end leads to the fire-fighting zero line of all switches in system, so will result in it is other switch all light and (originally should not light) and
This switch is will also result in simultaneously to burn out because of overload (all other switch is all by the fire-fighting loop power supply of this switch).
Utility model content
Problem to be solved in the utility model is to provide a kind of high pressure TSC dynamic reactive compensation device test platforms, is
The research and development experiment and debugging of dispatching from the factory of high-pressure reactive compensation device provide guiding foundation, to solve what is proposed in above-mentioned background technology
Problem.
To achieve the above object, the utility model provides following technical scheme：
A kind of fire-fighting electronic on-off circuit with interlock function, including rectifier bridge BR1, rectifier bridge BR2, triode Q1, list
Fuse F1 is connected to IGCT SCR1 and photo-coupler U1, the rectifier bridge BR1 port 1, rectifier bridge BR1 port 2 connects
Connecting resistance R1, unidirectional thyristor SCR1 anode and unidirectional thyristor T1 anode, resistance R1 the other end connection resistance R6 and
Triode Q1 colelctor electrode, triode Q1 emitter stage connects resistance R10 and three terminal regulator U3 pin 1, unidirectional thyristor
SCR1 negative electrode connection resistance R4, resistance R5, electric capacity C2, electric capacity C3, diode Z1 anode, the three terminal regulator U3 and of pin 2
Rectifier bridge BR1 port 4, the resistance R6 other end connection diode D4 negative electrode and triode Q1 base stage, unidirectional thyristor
SCR1 control pole connection diode D1 anode and resistance R4, diode D1 negative electrode connection diode D2 anode, two poles
Pipe D2 negative electrode connection diode D3 anode, resistance R7, electric capacity C1 and resistance R3, unidirectional thyristor T1 control pole connection electricity
Hinder three inside the colelctor electrode of triode inside R8, resistance R8 other end connection resistance R9 and photo-coupler U1, photo-coupler U1
The grounded emitter of pole pipe, anode connection the resistance R2, resistance R2 of photo-coupler U1 interior light emitting diodes other end connection
Resistance R12, electric capacity C4, diode D6 negative electrode and diode D7 anode, the rectifier bridge BR2 connection of port 3 thermistor
RNTC and rectifier bridge BR1 port 3, thermistor RNTC other end connection load LOAD, rectifier bridge BR2 port 2 is connected
Resistance R14, unidirectional thyristor SCR2 anode and unidirectional thyristor T2 anode, unidirectional thyristor SCR2 control pole connection two
Pole pipe D5 anode and resistance R11, resistance R11 other end connection resistance R13, electric capacity C5 and unidirectional thyristor SCR2 port
Inside 4, unidirectional thyristor T2 control pole connection resistance R15, resistance R15 other end connection resistance R16 and photo-coupler U2
The grounded emitter of triode, the sun of photo-coupler U2 interior light emitting diodes inside the colelctor electrode of triode, photo-coupler U2
Pole connects resistance R7, and the resistance R16 other end connects the another of diode Z2 negative electrode, the resistance R14 other end and electric capacity C6
End.
It is used as preferred scheme of the present utility model：The diode Z1 is voltage-regulator diode.
Compared with prior art, the beneficial effects of the utility model are：(1), can be real using controllable silicon as switching device
The life requirements that existing product is frequently switched on (open and close number of times is far longer than mechanical contact).(2) live wire and load circuit, fire
Interlocking is realized in line and load circuit, two loops, i.e.,：During one loop conducting, another loop is not turned on.(3) product is without just
Beginningization, without being first powered to zero line, fire-fighting loop can direct-electrifying work, it is reliable and stable.
Brief description of the drawings
Fig. 1 is the structure chart of the fire-fighting electronic on-off circuit with interlock function.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Referring to Fig. 1, a kind of fire-fighting electronic on-off circuit with interlock function, including rectifier bridge BR1, rectifier bridge BR2, three
Pole pipe Q1, unidirectional thyristor SCR1 and photo-coupler U1, the rectifier bridge BR1 connection of port 1 fuse F1, rectifier bridge BR1
The connection of port 2 resistance R1, unidirectional thyristor SCR1 anode and unidirectional thyristor T1 anode, resistance R1 other end connection
Resistance R6 and triode Q1 colelctor electrode, triode Q1 emitter stage connect resistance R10 and three terminal regulator U3 pin 1, unidirectionally
IGCT SCR1 negative electrode connection resistance R4, resistance R5, electric capacity C2, electric capacity C3, diode Z1 anode, three terminal regulator U3
Pin 2 and rectifier bridge BR1 port 4, the resistance R6 other end connection diode D4 negative electrode and triode Q1 base stage are unidirectional brilliant
Brake tube SCR1 control pole connection diode D1 anode and resistance R4, diode D1 negative electrode connection diode D2 anode,
Diode D2 negative electrode connection diode D3 anode, resistance R7, electric capacity C1 and resistance R3, unidirectional thyristor T1 control pole connects
Inside connecting resistance R8, resistance R8 other end connection resistance R9 and photo-coupler U1 in the colelctor electrode of triode, photo-coupler U1
The grounded emitter of portion's triode, the anode connection resistance R2 of photo-coupler U1 interior light emitting diodes, the resistance R2 other end
Connect resistance R12, electric capacity C4, diode D6 negative electrode and diode D7 anode, the rectifier bridge BR2 connection of port 3 temperature-sensitive electricity
RNTC and rectifier bridge BR1 port 3 is hindered, thermistor RNTC other end connection loads LOAD, and rectifier bridge BR2 port 2 connects
Connecting resistance R14, unidirectional thyristor SCR2 anode and unidirectional thyristor T2 anode, unidirectional thyristor SCR2 control pole connection
Diode D5 anode and resistance R11, resistance R11 other end connection resistance R13, electric capacity C5 and unidirectional thyristor SCR2 end
In mouth 4, unidirectional thyristor T2 control pole connection resistance R15, resistance R15 other end connection resistance R16 and photo-coupler U2
The grounded emitter of triode inside the colelctor electrode of portion's triode, photo-coupler U2, photo-coupler U2 interior light emitting diodes
Anode connects resistance R7, and the resistance R16 other end connects the another of diode Z2 negative electrode, the resistance R14 other end and electric capacity C6
One end.
Diode Z1 is voltage-regulator diode.
Operation principle of the present utility model is：This patent circuit has two circuit loops：One is between live wire and load
Switching circuitry (major loop), another be fire-fighting live wire and load between switching circuitry (fire-fighting loop).
Product under normal circumstances, only gives major loop to be powered, the live wire of civil power through fuse F1, rectifier bridge BR1, resistance R1,
R6, switch triode Q1, voltage-stabiliser tube D4, resistance R10, voltage-stabiliser tube Z1, electric capacity C3, three terminal regulator U3, thermistor NTC are constituted
Standby power loop, civil power constitutes a mini-switch power source circuit after BR1 rectifications by R1, Q1, R6, D4, R10, Z1, C3,
Module (such as acoustic control module, infrared induction module, touch module etc.) is controlled to provide stand-by operation electricity so as to give through U3 voltage stabilizings again
Pressure.
After module output signal is controlled, triggering controllable silicon T1 is gone to turn on through R9, R8, C2, so as to form moment on R5
Pressure drop, when this pressure drop is more than voltage-stabiliser tube D1 breakdown value, D1 conductings triggering silicon controlled main rectifier SCR1 conductings afterwards, then through F1,
BR1, SCR1, NTC formation conducting loop, so as to go to connect load LOAD work (i.e.:The civil power at L ends leads to the load at LOAD ends
Form path).(note：F1 is major loop fuse, and NTC is negative tempperature coefficient thermistor, for load circuit anti-cold start-up wink
Between high current and set；C1 is anti-interference capacitor, and R4 is silicon controlled main rectifier pull down resistor).
In above-mentioned triggering silicon controlled main rectifier turn on process, the moment pressure drop on R5 is by D2 to C1 and again by D3 to C3
Charging, so that the voltage (be approximately equal to pressure drop that D1 voltage stabilizing value subtract D2 and D3) more lower slightly than voltage-stabiliser tube D1 voltage stabilizing values is obtained on C3,
Voltage on C3 can be charged using the half period of civil power as frequency, i.e.,：C3 two ends can obtain stable control voltage output
To U3 so as to be supplied to control module.
Fire-fighting interlocking is specifically designed part：While above-mentioned major loop works, because of the load of fire-fighting loop and major loop
End is public (being an electric connecting point), after major loop is turned on, and load end has gone up the live wire of civil power equivalent to leading to, this
Hot voltage can go triggering controllable silicon T2 conductings by BR2 rectifier bridges by R14, Z2, C6, R16, R15, and (trigger theory is same
Major loop is identical), hereafter SCR2 can also be turned on, and this voltage can lead to XF ends afterwards, so that cause XF ends to take civil power, it is this
Situation does not allow.So being specifically designed as follows：C1 and R3 are devised between the D2 and D3 of major loop, master is controllable in triggering
Also voltage (mode that mode is obtained with voltage on C3) is obtained during silicon SCR1 on C1 simultaneously, the voltage warp that C1 two ends are obtained
R7 is used to control photoelectrical coupler U2 luminous tubes side ON operation, so that U2 opposite side triode saturation conductions, so as to close
R15 is connected over the ground with R16 common point, i.e.,：R15 and R16 tie points voltage pull-down is touched to ground so as to not result in controllable silicon T2
Hair conducting, so as to also pin SCR2 conducting, that is, is realized：While major loop conducting (connecting load), fire-fighting loop
It is locked obstructed.
Fire-fighting loop works situation：Give XF ends logical upper live wire, through fuse F2, rectifier bridge BR2, resistance R14, voltage-stabiliser tube
Z2, electric capacity C6 produce triggering operating voltage, then go the T2 work of triggering controllable silicon through resistance R16, R15, C5 so as to which trigger circuit can
Controlling silicon SCR2 ON operations, (with major loop trigger theory, wherein C5 is anti-interference capacitor to principle, and R11 is that silicon controlled main rectifier pulls down electricity
Resistance).Principle same major loop when this loop is turned on, also produces the control voltage (principle after controlled silicon conducting by R13, D5, D6, D7
Same major loop).Equally also devising lock circuit is used for the conducting of locked major loop after fire-fighting loop is turned on, and related elements are：C4、
R12, R2, U1, so that R9 and R8 tie points are connect as little as, so that the locked work(for avoiding T1, SCR1 triggering and conducting and realizing
Energy.
The interlocking of major loop and fire-fighting loop is specifically designed：D3, D7 design, just can be right when can only be a loop conducting
Another loop is controlled (locked)；R3, R12 are the achievable quick-release locks in order to be designed respectively to C1, C4 repid discharge
Dead function.
Claims (2)
1. a kind of fire-fighting electronic on-off circuit with interlock function, including it is rectifier bridge BR1, rectifier bridge BR2, triode Q1, unidirectional
IGCT SCR1 and photo-coupler U1, it is characterised in that the connection of port 1 the fuse F1, rectifier bridge BR1 of the rectifier bridge BR1
The connection of port 2 resistance R1, unidirectional thyristor SCR1 anode and unidirectional thyristor T1 anode, resistance R1 other end connection
Resistance R6 and triode Q1 colelctor electrode, triode Q1 emitter stage connect resistance R10 and three terminal regulator U3 pin 1, unidirectionally
IGCT SCR1 negative electrode connection resistance R4, resistance R5, electric capacity C2, electric capacity C3, diode Z1 anode, three terminal regulator U3
Pin 2 and rectifier bridge BR1 port 4, the resistance R6 other end connection diode D4 negative electrode and triode Q1 base stage are unidirectional brilliant
Brake tube SCR1 control pole connection diode D1 anode and resistance R4, diode D1 negative electrode connection diode D2 anode,
Diode D2 negative electrode connection diode D3 anode, resistance R7, electric capacity C1 and resistance R3, unidirectional thyristor T1 control pole connects
Inside connecting resistance R8, resistance R8 other end connection resistance R9 and photo-coupler U1 in the colelctor electrode of triode, photo-coupler U1
The grounded emitter of portion's triode, the anode connection resistance R2 of photo-coupler U1 interior light emitting diodes, the resistance R2 other end
Connect resistance R12, electric capacity C4, diode D6 negative electrode and diode D7 anode, the rectifier bridge BR2 connection of port 3 temperature-sensitive electricity
RNTC and rectifier bridge BR1 port 3 is hindered, thermistor RNTC other end connection loads LOAD, and rectifier bridge BR2 port 2 connects
Connecting resistance R14, unidirectional thyristor SCR2 anode and unidirectional thyristor T2 anode, unidirectional thyristor SCR2 control pole connection
Diode D5 anode and resistance R11, resistance R11 other end connection resistance R13, electric capacity C5 and unidirectional thyristor SCR2 end
In mouth 4, unidirectional thyristor T2 control pole connection resistance R15, resistance R15 other end connection resistance R16 and photo-coupler U2
The grounded emitter of triode inside the colelctor electrode of portion's triode, photo-coupler U2, photo-coupler U2 interior light emitting diodes
Anode connects resistance R7, and the resistance R16 other end connects the another of diode Z2 negative electrode, the resistance R14 other end and electric capacity C6
One end.
2. a kind of fire-fighting electronic on-off circuit with interlock function according to claim 1, it is characterised in that two pole
Pipe Z1 is voltage-regulator diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720116639.5U CN206611398U (en) | 2017-02-08 | 2017-02-08 | A kind of fire-fighting electronic on-off circuit with interlock function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720116639.5U CN206611398U (en) | 2017-02-08 | 2017-02-08 | A kind of fire-fighting electronic on-off circuit with interlock function |
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| Publication Number | Publication Date |
|---|---|
| CN206611398U true CN206611398U (en) | 2017-11-03 |
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| CN201720116639.5U Expired - Fee Related CN206611398U (en) | 2017-02-08 | 2017-02-08 | A kind of fire-fighting electronic on-off circuit with interlock function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656135A (en) * | 2017-02-08 | 2017-05-10 | 刘剑 | Firefighting electronic switch circuit with interlocking function |
-
2017
- 2017-02-08 CN CN201720116639.5U patent/CN206611398U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656135A (en) * | 2017-02-08 | 2017-05-10 | 刘剑 | Firefighting electronic switch circuit with interlocking function |
| CN106656135B (en) * | 2017-02-08 | 2024-06-25 | 刘剑 | Fire-fighting electronic switch circuit with interlocking function |
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Granted publication date: 20171103 |
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| CF01 | Termination of patent right due to non-payment of annual fee |