CN205827604U

CN205827604U - Fire alarm system

Info

Publication number: CN205827604U
Application number: CN201620721508.5U
Authority: CN
Inventors: 姜志光; 郭士兴; 郑志强
Original assignee: Beijing Jing Jin Jinlong Railway Fire Protection Engineering Co Ltd
Current assignee: Beijing Jing Jin Jinlong Railway Fire Protection Engineering Co Ltd
Priority date: 2016-07-08
Filing date: 2016-07-08
Publication date: 2016-12-21
Anticipated expiration: 2026-07-08

Abstract

The utility model discloses a kind of fire alarm system, aim to provide a kind of fire alarm system sending strong obvious alarm signal when fire occurs, its drip irrigation device is by the light warning module in fire alarm system, light warning is carried out in time when fire occurs, the first signal lights and secondary signal lamp is made to replace flashing by the multi-harmonic-oscillations module in light warning module, thus being greatly reinforced of the alarming effect of light warning module so that people's receiving warning thus carry out corresponding fire process much sooner when breaking out of fire.

Description

Fire alarm system

Technical field

This utility model relates to fire alarm field, particularly to a kind of fire alarm system.

Background technology

Fire alarm system is people in order to fire is circulated a notice of in early discovery, and adopts an effective measure in time, controls and puts out Fire, and arrange between floors or a kind of automatic fire-fighting facility in other place, is the strong works struggled with fire of people Tool.

At present, the Chinese patent of Publication No. CN205211096U discloses a kind of fire alarm system, and it includes smog Sensor, microcontroller, warning circuit, temperature sensor and key control circuit, be provided with memorizer, micro-control in microcontroller Device processed connects Smoke Sensor and temperature sensor, and Smoke Sensor connects ADC transducer, temperature sensor by connecting circuit Being provided with three pins, three pins are respectively GND grounding pin, two-way I/O mouth and UDD external power supply pin.

Although this fire alarm system realizes the display of temperature and concentration, but when fire occurs, people are usually The alarm signal of invisible fire alarm system can be caused due to the work be absorbed at hand, withdraw in time from being unable to.

Utility model content

The purpose of this utility model is to provide a kind of fire alarm system, its have send when fire occurs the most obvious The advantage of alarm signal.

Above-mentioned technical purpose of the present utility model has the technical scheme that

A kind of fire alarm system, including flame detection modules, control module, alarm module and fire suppression module, it is special Levy and be: described alarm module includes that light warning module, light warning module include

Step-down rectifier module, to light warning module for power supply after carrying out step-down rectifier by civil power；

Multi-harmonic-oscillations module, is coupled to step-down rectifier module, for alternately output high level and low level；

Trigger module, is coupled to multi-harmonic-oscillations module, in response to high level triggering and conducting, and sends Continuity signal；Response Turn off in low level, and send cut-off signals；

Light emitting module, is coupled to trigger module, carries out luminescence in response to Continuity signal；Put out in response to cut-off signals Go out.

It is arranged such so that fire alarm system is when being operated, by the cooperation of module each in light warning module Use so that the illuminating part in light emitting module replaces flashing, thus has been greatly reinforced the alarming effect of light warning module, Make when breaking out of fire people receiving warning thus carry out corresponding fire process much sooner.

Arrange further: multi-harmonic-oscillations module includes

Oscillating unit, for according to a frequency of oscillation alternately output high level and low level；

Frequency regulation unit, is coupled to oscillating unit, for changing the size of above-mentioned frequency of oscillation；

Isolated location, be coupled to frequency regulation unit, for avoid two frequencies regulation cell operation time between mutual shadow Ring.

Be arranged such, by oscillating unit in multi-harmonic-oscillations module, frequency regulation unit, isolated location with the use of, Make multi-harmonic-oscillations module be possible not only to efficiently alternately output high level and low level, frequency of oscillation can also be carried out simultaneously Regulation so that the motility of whole light warning module is higher, carries out the regulation of different flicker frequency easily.

Arrange further: trigger module is coupled with the immunity module for preventing self false triggering.

It is arranged such so that trigger module, when receiving triggering signal, effectively eliminates illuminating part in light emitting module Between interference so that the triggering effect more precise and high efficiency of trigger module.

Arrange further: step-down rectifier module includes commutation diode, dropping resistor and voltage stabilizing two pole being sequentially connected in series Pipe, is in series with electrochemical capacitor between dropping resistor and Zener diode, and the negative pole of the positive pole of electrochemical capacitor and Zener diode Connect.

It is arranged such so that step-down rectifier module is simpler easy to implement so that blood pressure lowering sorting module is the most more Add energy-efficient, reduce manufacturing cost and use cost.

Arrange further: oscillating unit includes the first NAND gate and the second NAND gate, the outfan of the first NAND gate and the The input of two NAND gate connects.

It is arranged such, forms simple oscillating unit by the first NAND gate and the second NAND gate so that whole multi-resonant The work efficiency swinging module is higher, oscillation effect is more preferable.

Arrange further: frequency regulation unit includes the first adjustable resistance and the second adjustable resistance being serially connected.

It is arranged such, is carried out the regulation of frequency by the resistance regulating the first adjustable resistance and the second adjustable resistance, make Obtain the simpler convenience of operation of frequency adjustment module, so that the structure of whole visual alarm system is simpler, effect is bright Aobvious.

Arrange further: isolated location is positive pole and the isolating diode of the first adjustable resistance common port connection, isolates two The negative pole of pole pipe is connected to the outfan of the first NAND gate.

It is arranged such, at the first adjustable resistance and the second adjustable resistance when carrying out resistance regulation, is made by isolated location Obtain the regulation between the first adjustable resistance and the second adjustable resistance the most unaffected, thus ensure that the steady of visual alarm system Qualitative.

Arrange further: trigger module includes being connected to the first IGCT of the first NAND gate outfan and is connected to second Second IGCT of NAND gate outfan.

It is arranged such, by the first IGCT and the conducting of the second IGCT or shutoff, carries out luminescence simply and easily The switch of module so that light emitting module reacts the most accordingly when receiving Continuity signal or cut-off signals, makes The warning obtaining whole light warning module is in hgher efficiency, and warning effect is the most notable.

Arrange further: light emitting module includes being connected to the first signal lights of the first IGCT anode and is connected to the second crystalline substance The secondary signal lamp of brake tube.

It is arranged such so that the first signal lights and secondary signal lamp replace flashing, thus further enhance light The alarming effect of alarm module so that during breaking out of fire, people more easily receive fire alarm, thus carry out much sooner Process.

Arrange further: immunity module includes the first electric capacity, the company being connected between the first gate circuit transistor gate and negative electrode The second electric capacity being connected between the second gate circuit transistor gate and negative electrode.

It is arranged such, further enhances the capacity of resisting disturbance of immunity module so that trigger module is when operating More accurate, it is ensured that the stability of whole light alarming device.

In sum, this utility model has the advantages that fire alarm system not only passes through when breaking out of fire Light warning module alternately flashes so that the warning effect of fire alarm system more preferably, simultaneously by light emitting module One signal lights and secondary signal lamp are arranged to different colors so that the illumination effect of light emitting module more preferably highlights obvious, enters one Step strengthens warning function so that people receive warning the very first time when fire occurs, thus react in time.

Accompanying drawing explanation

Fig. 1 is the module diagram of embodiment 1 fire alarm system；

Fig. 2 is the module diagram of embodiment 1 visual alarm system；

Fig. 3 is the circuit diagram of embodiment 2 visual alarm system.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

Embodiment 1: a kind of fire alarm system, as shown in Figure 1 to Figure 3, including flame detection modules, control module, report Alert module and fire suppression module, alarm module includes light warning module.

Light warning module includes step-down rectifier module, multi-harmonic-oscillations module, trigger module, light emitting module, trigger module It is also associated with immunity module.

Multi-harmonic-oscillations module includes that oscillating unit, frequency regulate unit, isolated location.

First, being adjusted frequency by frequency regulation unit, regulation is to required frequency.

Fire alarm system has detected when fire occurs, and the visual alarm system in alarm module is operated, first Civil power is carried out rectification of reducing pressure by step-down rectifier module so that light warning module is supplied with the electric energy of appropriate size, then vibrates Unit according to the frequency of oscillation set alternately output high level and low level, simultaneously isolated location by two regulating frequency unit it Between isolate, it is to avoid between the two produce influence each other.

Then trigger module sends Continuity signal in response to high level, and light emitting module carries out luminescence in response to Continuity signal; Or sending cut-off signals in response to low level, light emitting module stops luminescence in response to cut-off signals.When trigger module works, The false triggering of self is prevented by immunity module.Reciprocal with this, constantly circulate, send out so that light emitting module carries out flicker Light, carries out strong warning function.

Embodiment 2: a kind of fire alarm system, as it is shown on figure 3, step-down rectifier module includes rectification two pole being sequentially connected in series Pipe, dropping resistor and Zener diode, be in series with electrochemical capacitor between dropping resistor and Zener diode, and electrochemical capacitor Positive pole is connected with the negative pole of Zener diode.

The first adjustable resistance and second that multi-harmonic-oscillations module includes the first NAND gate and the second NAND gate, be serially connected can Adjust the isolating diode that resistance, positive pole and the first adjustable resistance common port connect.The wherein outfan and second of the first NAND gate The input of NAND gate connects, and the negative pole of isolating diode is connected to the outfan of the first NAND gate.

Trigger module includes the first IGCT being connected to the first NAND gate outfan and is connected to the second NAND gate output Second IGCT of end；Light emitting module includes the first signal lights being connected to the first IGCT anode and is connected to the second IGCT Secondary signal lamp；Immunity module includes the first electric capacity being connected between the first gate circuit transistor gate and negative electrode, is connected to The second electric capacity between two gate circuit transistor gates and negative electrode.

When light warning module works, commutation diode, dropping resistor, Zener diode, electrochemical capacitor composition is simple Resistance blood pressure lowering half-wave rectifier voltage circuit, exports about 12v direct current and supplies electricity to the first NAND gate and the second NAND gate is powered.First with non- Door and the second NAND gate composition multivibrator, by regulating the first adjustable resistance, the second adjustable resistance changes frequency of oscillation.Every Play buffer action from diode, when preventing from adjusting the first adjustable resistance, affect the time that the second adjustable resistance sets.Circuit starting of oscillation After, NAND gate outfan the most alternately output high level and low level, when the outfan foot of the first NAND gate exports high level, the Two IGBT group conductings, secondary signal lamp is bright, and now the outfan of the second NAND gate is low level, and the first signal lights does not works； When the outfan output low level of the first NAND gate, the second IGCT turns off, and secondary signal lamp goes out, now the second NAND gate Outfan is high level, and the first IGBT group conducting, the first signal lights is bright.First electric capacity and the second electric capacity eliminate dry simultaneously Disturb, prevent false triggering.

The above embodiments are only that it is not to restriction of the present utility model, ability to explanation of the present utility model The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but As long as all being protected by Patent Law in right of the present utility model.

Claims

1. a fire alarm system, including flame detection modules, control module, alarm module and fire suppression module, its feature It is: described alarm module includes that light warning module, light warning module include

Trigger module, is coupled to multi-harmonic-oscillations module, in response to high level triggering and conducting, and sends Continuity signal；In response to low Level turns off, and sends cut-off signals；

Light emitting module, is coupled to trigger module, carries out luminescence in response to Continuity signal；Extinguish in response to cut-off signals.

Fire alarm system the most according to claim 1, it is characterised in that: described multi-harmonic-oscillations module includes

Isolated location, be coupled to frequency regulation unit, for avoid two frequencies regulation cell operation time between influence each other.

Fire alarm system the most according to claim 1, it is characterised in that: described trigger module is coupled with for preventing The immunity module of self false triggering.

Fire alarm system the most according to claim 1, it is characterised in that: described step-down rectifier module includes going here and there successively Commutation diode, dropping resistor and the Zener diode of connection, is in series with electrochemical capacitor between dropping resistor and Zener diode, And the positive pole of electrochemical capacitor is connected with the negative pole of Zener diode.

Fire alarm system the most according to claim 2, it is characterised in that: described oscillating unit includes the first NAND gate Connect with the second NAND gate, the outfan of the first NAND gate and the input of the second NAND gate.

Fire alarm system the most according to claim 2, it is characterised in that: described frequency regulation unit includes mutually going here and there First adjustable resistance of connection and the second adjustable resistance.

Fire alarm system the most according to claim 2, it is characterised in that: described isolated location is that positive pole and first can Adjusting the isolating diode that resistance common port connects, the negative pole of isolating diode is connected to the outfan of the first NAND gate.

Fire alarm system the most according to claim 3, it is characterised in that: described trigger module includes being connected to first First IGCT of NAND gate outfan and the second IGCT being connected to the second NAND gate outfan.

Fire alarm system the most according to claim 1, it is characterised in that: described light emitting module includes being connected to first First signal lights of IGCT anode and the secondary signal lamp being connected to the second IGCT.

Fire alarm system the most according to claim 3, it is characterised in that: described immunity module includes being connected to The first electric capacity between first gate circuit transistor gate and negative electrode, the second electric capacity being connected between the second gate circuit transistor gate and negative electrode.