CN208637368U - A kind of fire-fighting force start device of electronic relay output type - Google Patents
A kind of fire-fighting force start device of electronic relay output type Download PDFInfo
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- CN208637368U CN208637368U CN201820212115.0U CN201820212115U CN208637368U CN 208637368 U CN208637368 U CN 208637368U CN 201820212115 U CN201820212115 U CN 201820212115U CN 208637368 U CN208637368 U CN 208637368U
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Abstract
The utility model discloses a kind of fire-fighting force start devices of the relay output type of electronic type, including control circuit and power circuit, Digital I/O detection circuit to open indicator light circuit, output circuit by force.Power circuit connects external 24V power supply, works for device, and 24V is converted to 5V through internal electric source, uses for control circuit, and interior power supply circuit simultaneously exports 24V isolated from power, accesses and uses for external fire-fighting signal (passive dry contact input).The present apparatus is after opening initialization, force relay open-circuit condition, after the input of external fire-fighting signal, internal conditioning circuit can convert the signal into low level signal, after control circuit receives signal, judge whether signal meets normal fire-fighting signal input, if meeting condition, relay is forced to be attracted, after reaching start fire signal, it realizes equipment force start, ensures the purpose that the relevant devices such as fire emergency can work normally.
Description
Technical field
The utility model relates to low-voltage electrical technical field, specially a kind of fire-fighting of electronic relay output type is strong
Starter processed includes power circuit.
Background technique
Fire-fighting forcible startup function module is currently a kind of low-voltage electrical field commonly equipment, when there is fire-fighting signal access,
It can make fire pump, the relevant devices such as emergency lighting provide plant-grid connection, have reached protection staff safe escape, emergency rescue
The purpose of.After fire-fighting signal is cancelled, cut-off equipment power supply avoids equipment from being chronically at working condition, protects equipment, saves energy
Source.Above-mentioned control mostly is realized using A.C. contactor at present.Traditional contactors, which install intermediate relay additional, equally may be implemented fire-fighting
Strong Qi Gongneng, if but problem is that live circuit is more, contactor need to largely be coupled and intermediate relay uses, increase wiring
Cost and cost of labor, and to guarantee that contactor can work normally, used intermediate relay need to usually access 220V power supply
Carry out control contactor coil, it is ensured that contactor action message.Based on the above situation, a kind of module need to be developed, and low in energy consumption, configured
A kind of flexible product meets field demand, and engineering wiring is relatively easy, and really realize the purpose of low voltage control high pressure.
Utility model content
The technical problems to be solved in the utility model is to overcome existing defect, provides a kind of electronic relay output class
The fire-fighting force start device of type includes power circuit, when there is fire-fighting signal access, can make fire pump, emergency lighting etc.
The purpose of relevant device provides plant-grid connection, has reached protection staff and safely evacuates, emergency rescue, and the utility model power consumption
Low, configuration flexibly, further improves the service efficiency of the utility model, can effectively solve the problems in background technique.
To achieve the above object, the utility model provides the following technical solutions: a kind of electronic relay output type
Fire-fighting force start device includes power circuit, fire-fighting signal detection circuit, control circuit, malfunction indicator lamp output circuit, after
Electric appliance output circuit.Wherein power circuit is by MC34063 power supply chip, filter capacitor, zener diode, resistance, inductance member device
Part composition 24V turns 12V circuit, uses for control relay switch, and by LM7805 chip, resistance composition 12V turns 5V output circuit,
It is used for control circuit, 24V isolated power supply circuit is separately formed by B2424L chip and resistance, inputted and use for fire-fighting signal.Disappear
After anti-signal input, detection circuit detects the lasting variation of low and high level, is sent into control circuit, control circuit is based on detection
As a result, control relay enters attracting state, achieve the purpose that force equipment starting, while outputing signal to indicator light, and control
Normally-open normally-close output state conversion processed, realizes the purpose of signal feedback.
As a kind of optimal technical scheme of the utility model, fire-fighting signal part, the passive dry contact input of use, electricity
Source circuit is inputted using DC24V isolated power supply, by TLP521 optocoupler, resistance R12 is cooperated to use, when fire-fighting dry contact is believed
After number input, 24V isolated power supply gives photoelectrical coupler supplying power for input end by current-limiting resistance R12, to drive photoelectrical coupler
Control signal is sent control circuit to handle by closure.Using foregoing circuit, can avoid in the use process of scene due to load it is excessive,
Lead to 24V fire-fighting signal brownout, be not enough to drive fire-fighting module, causes what fire-fighting signal normally cannot be identified normally to show
As occurring.
As a kind of optimal technical scheme of the utility model, control circuit part is using microchip company
24 feet of PIC16F917 processor unit IC1 connect the output end of fire-fighting signal, the control of 2/3/4/5/6/7 foot contact relay
End after processor detects the low level signal of 24 feet and can maintain 2 seconds or more, then controller issue control signal to 2,
3,4,5,6,7, pin, control ULD2003 chip exports 12 power supplys, so that relay coil powers on, reaches control relay and closes
The purpose of conjunction.
As a kind of optimal technical scheme of the utility model, control circuit uses pulse width control relay, by micro-
Controller issues low and high level pulse width signal, so that ULD2003 chip opens or closes 12V, 50 microsecond pulse width signals,
So that magnetic latching relay receives pulse width signal, the movement for disconnecting and being attracted is executed, and reaches relay only in movement
The effect of the energy is saved in power consumption, not power consumption of being failure to actuate.
As a kind of optimal technical scheme of the utility model, by 5V state switching relay and protection diode and control
System forms signal feedback circuit with triode Q4 and current-limiting resistance R115, and after relay force start, control circuit executes control
System exports high level, opens triode, so that relay acts after obtaining voltage, relay normally open contact becomes normally closed, normally closed
Contact becomes normally opened movement conversion, to achieve the purpose that signal is fed back.
As a kind of optimal technical scheme of the utility model, LED display circuit is with 26 feet of microcontroller IC1
Current-limiting resistance R3 and light emitting diode D1 composition issues pulse width signal by microcontroller after relay adhesive action executes, so that
Diode alternate conduction and cut-off, so that the purpose of diode alternating light-emitting flash.
Compared with prior art, the utility model has the beneficial effects that the fire-fighting of this electronic relay output type is strong
Starter processed, compact-sized, easy to operate, the technological means that the utility model uses is: hardware is used with Microchip
The hardware circuit that the PIC16F917 single-chip microcontroller of company is developed for core, including power circuit, IO input circuit, control circuit, often
Normally closed conversion output circuit is opened, wherein power circuit is by MC34063 power supply chip, filter capacitor, zener diode, resistance, electricity
Sense component composition 24V turns 12V circuit, uses for control relay switch, and by LM7805 chip, resistance composition 12V turns 5V
Output circuit uses for control circuit, separately forms 24V isolated power supply circuit by B2424L chip and resistance, defeated for fire-fighting signal
Enter to use, by TLP521 optocoupler, cooperation resistance R12 is used IO input circuit, after the input of fire-fighting dry contact signal, 24V every
Photoelectrical coupler supplying power for input end is given by current-limiting resistance R12 from power supply, so that photoelectrical coupler be driven to be closed, signal will be controlled
It send control circuit to handle, control circuit: further, after control circuit detects signal, low and high level arteries and veins being issued by microcontroller
Width signal is rushed, so that ULD2003 chip opens or closes 12V, 50 microsecond pulse width signals, so that magnetic latching relay receives
Pulse width signal executes the movement for disconnecting and being attracted, and reaches the relay only power consumption in movement, not power consumption of being failure to actuate and save
The effect of the energy, normally-open normally-close convert output circuit by 5V state switching relay and protection diode and control triode
Q4 and current-limiting resistance R115 forms signal feedback circuit, and after relay force start, control circuit executes control, exports high electricity
It is flat, triode is opened, so that relay acts after obtaining voltage, relay normally open contact becomes normally closed, and normally-closed contact becomes normal
The movement conversion opened, to achieve the purpose that signal is fed back.
Detailed description of the invention
Fig. 1 is the control circuit first part schematic diagram of the utility model；
Fig. 2 is the fire-fighting signal detection circuit schematic diagram of the utility model；
Fig. 3 is that 12V turns 5V conversion circuit figure；
Fig. 4 is the control circuit second part schematic diagram of the utility model；
Fig. 5 is that normally-open normally-close converts output circuit schematic diagram；
Fig. 6 is the software program flow chart of the utility model；
Fig. 7 is that 24V turns 24V spacing output circuit；
Fig. 8 is that 24V turns 12V output circuit.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-8 is please referred to, the utility model provides a kind of technical solution: by MC34063 and electrolytic capacitor C5 and resistance R8
The input terminal of DCDC circuit is formed, C5 is electrolytic capacitor, and overvoltage protection can be provided for chip and has electric energy storage effect, R5 is mentioned
For the current limitation measure of chip, while guaranteeing that the normal electric current of chip supplies, inductance L1 is High frequency filter effect, and voltage-stabiliser tube D2 can
Ensure the stabilization of 12V output, cooperation C4 can guarantee that the output of 12V power supply can reach 200mA, be that entire circuit and magnetic keep relay
Device provides enough action currents, while B2424LD-1W is that 24V turns 24V DC power supply, provides power supply for fire-fighting signal input,
And the misconnection for placing external high pressure damages entire module, LM78L05 is DCDC conversion chip, and 12V is switched to 5V power supply, is electrolysed
Capacitor C7 cooperates chip, provides stable electric current output, uses for the control system of module, further, at fire-fighting input signal
Part is managed, is used using TLP521 photoelectrical coupler and 2.4K resistance R12, when fire-fighting signal inputs, 24V isolated power supply is direct
Photoelectrical coupler supplying power for input end is given, coupler internal diode forward conduction causes optocoupler output triode ground level positive
Biasing, triode is in the conductive state, and IO-INPUT level signal becomes low level, and control circuit is sent to handle, and control circuit is
The single-chip microcontroller of PIC series based on microchip company is core design, and PIC single chip microcomputer has higher anti-interference ability, and
Stable and reliable in work, 24 feet of microcontroller detect low level and for 2 seconds, it is believed that fire-fighting signal access effectively, will export
2,3,4 level of pin sets height, and set1, set2, after set3 signal level sets height, signal send ULN2003D chip processing, ULN2003
Chip is the Darlington transistor array of 8 tunnels input, has the function of high power switch, it is ensured that the switch control of 12V power supply passes through control
Magnetic latching relay coil voltage achievees the purpose that control relay, and magnetic latching relay is that twin coil common-anode inputs, logical
The end control SET is crossed as low level ground connection, so that coil is powered, achievees the purpose that relay is closed, state switching relay
Signal feedback circuit is formed with protection diode and control triode Q4 and current-limiting resistance R115, when relay pressure is opened
After dynamic, control circuit executes control, exports high level, so that triode ground level forward bias, triode is in a saturated state, makes
It obtains after relay obtains voltage and acts, relay normally open contact becomes normally closed, and normally-closed contact becomes normally opened movement conversion, to reach
The purpose fed back to signal controls output control relay to involution state using SCM program after fire-fighting signal is cancelled.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of fire-fighting force start device of electronic relay output type, including power circuit, fire-fighting signal detection electricity
Road, control circuit, malfunction indicator lamp output circuit, outputting circuit for relay, wherein power circuit is by MC34063 power supply chip,
Filter capacitor, zener diode, resistance, inductance component composition 24V turn 12V circuit, use for control relay switch, by
LM7805 chip, resistance composition 12V turn 5V output circuit, use for control circuit, separately form 24V by B2424L chip and resistance
Isolated power supply circuit is inputted for fire-fighting signal and is used.
2. a kind of fire-fighting force start device of electronic relay output type according to claim 1, feature exist
In: fire-fighting signal part, the passive dry contact input of use, power circuit input using DC24V isolated power supply, pass through
TLP521 optocoupler, cooperation resistance R12 are used, and after the input of fire-fighting dry contact signal, 24V isolated power supply passes through current-limiting resistance R12
Photoelectrical coupler supplying power for input end is given, so that photoelectrical coupler be driven to be closed, send control circuit to handle control signal.
3. a kind of fire-fighting force start device of electronic relay output type according to claim 1, feature exist
In: control circuit part connects the defeated of fire-fighting signal using 24 feet of the PIC16F917 processor unit IC1 of microchip company
Outlet, the control terminal of 2/3/4/5/6/7 foot contact relay after processor detects the low level signal of 24 feet and can maintain 2
Second or more, then controller issues control signal to 2,3,4,5,6,7, pin, and control ULD2003 chip exports 12V power supply.
4. a kind of fire-fighting force start device of electronic relay output type according to claim 3, feature exist
In: control circuit uses pulse width control relay, issues low and high level pulse width signal by microcontroller, so that
ULD2003 chip opens or closes 12V, 50 microsecond pulse width signals, so that magnetic latching relay receives pulse width signal, executes disconnected
The movement opened and be attracted.
5. a kind of fire-fighting force start device of electronic relay output type according to claim 3, feature exist
In: signal, which is formed, with triode Q4 and current-limiting resistance R115 by 5V state switching relay and protection diode and control feeds back
Circuit, after relay force start, control circuit executes control, exports high level, opens triode, so that relay obtains
It is acted after voltage, relay normally open contact becomes normally closed, and normally-closed contact becomes normally opened movement conversion.
6. a kind of fire-fighting force start device of electronic relay output type according to claim 3, feature exist
In: LED display circuit current-limiting resistance R3 and light emitting diode D1 with 26 feet of microcontroller IC1 are formed, and relay is attracted
After movement executes, pulse width signal control diode alternate conduction and cut-off are issued by microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820212115.0U CN208637368U (en) | 2018-02-07 | 2018-02-07 | A kind of fire-fighting force start device of electronic relay output type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820212115.0U CN208637368U (en) | 2018-02-07 | 2018-02-07 | A kind of fire-fighting force start device of electronic relay output type |
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| Publication Number | Publication Date |
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| CN208637368U true CN208637368U (en) | 2019-03-22 |
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| CN201820212115.0U Active CN208637368U (en) | 2018-02-07 | 2018-02-07 | A kind of fire-fighting force start device of electronic relay output type |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111541383A (en) * | 2020-03-20 | 2020-08-14 | 南通职业大学 | Switching circuit for controlling clutch and brake of loom and working method thereof |
| CN112859661A (en) * | 2019-11-28 | 2021-05-28 | 北京龙坤盛达科技有限公司 | Eight-channel synchronous control technology |
| CN113552474A (en) * | 2021-07-29 | 2021-10-26 | 上海壁仞智能科技有限公司 | Compatible power interface detection circuit and electronic equipment |
-
2018
- 2018-02-07 CN CN201820212115.0U patent/CN208637368U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112859661A (en) * | 2019-11-28 | 2021-05-28 | 北京龙坤盛达科技有限公司 | Eight-channel synchronous control technology |
| CN111541383A (en) * | 2020-03-20 | 2020-08-14 | 南通职业大学 | Switching circuit for controlling clutch and brake of loom and working method thereof |
| CN113552474A (en) * | 2021-07-29 | 2021-10-26 | 上海壁仞智能科技有限公司 | Compatible power interface detection circuit and electronic equipment |
| CN113552474B (en) * | 2021-07-29 | 2023-04-07 | 上海壁仞智能科技有限公司 | Compatible power interface detection circuit and electronic equipment |
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