CN205680232U - For connecting stand alone type smoke detector and the control circuit of acoustooptic alarm - Google Patents
For connecting stand alone type smoke detector and the control circuit of acoustooptic alarm Download PDFInfo
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- CN205680232U CN205680232U CN201620490926.8U CN201620490926U CN205680232U CN 205680232 U CN205680232 U CN 205680232U CN 201620490926 U CN201620490926 U CN 201620490926U CN 205680232 U CN205680232 U CN 205680232U
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- Prior art keywords
- control circuit
- stand alone
- smoke detector
- alone type
- acoustooptic alarm
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Abstract
The utility model discloses a kind of for connecting stand alone type smoke detector and the control circuit of acoustooptic alarm, including for connecting stand alone type smoke detector and the input/output interface of acoustooptic alarm, the power supply input protection circuit being all connected with input/output interface, indicator light circuit, signal deteching circuit, delay control circuit, power supply output control circuit, power supply input protection circuit, signal deteching circuit, the outfan of delay control circuit is connected with power supply output control circuit, wherein, signal deteching circuit is for detecting the fire alarm closure signal of stand alone type smoke detector output；Power supply output control circuit controls acoustooptic alarm work for out-put supply；Delay control circuit is used for controlling acoustooptic alarm sound pressure level gradual change.This utility model is capable of the coordinated signals between stand alone type detector and acoustooptic alarm, and can control sound pressure level gradual change during acoustooptic alarm work.
Description
Technical field
This utility model relates to technical field of automatic fire alarm, particularly relates to a kind of for connecting stand alone type sense cigarette spy
Survey device and the control circuit of acoustooptic alarm.
Background technology
Automatic fire alarm system is mainly the generation being detected fire by detector, sends out by controlling acoustooptic alarm
Go out fire alarm acoustical signal and optical signal to remind people to there occurs fire.Detector can be divided into stand alone type detection by working method
Device and dependent formula detector.Stand alone type detector typically uses internal battery powers, it is not necessary to installation wiring, fire alarm detected
Fire alarm acoustical signal and optical signal can be sent during signal；Dependent formula detector needs to be connected to fire alarm by bus
Controller, when it detects that fire occurs, passes to fire alarm control unit, fire report by fire alarm signal by bus
After alert controller receives the fire alarm signal that detector returns, then send fire alarm by bus marco acoustooptic alarm
Optical signal and acoustical signal.
Dependent formula detector and acoustooptic alarm are generally individually arranged on the places such as easy breaking out of fire scene, corridor, hall,
Fire alarm control unit is typically placed in control room center, owing to dependent formula detector and acoustooptic alarm need to pass through bus
It is connected to fire alarm control unit, thus results in and the problem that wiring is inconvenient is installed.And stand alone type detector can not realize and sound
Coordinated signals between light siren, and existing acoustooptic alarm report to the police time sound pressure level can not gradual change.
Therefore need badly and provide a kind of control circuit connecting stand alone type smoke detector and acoustooptic alarm to solve
State problem.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of for connecting stand alone type smoke detector and acousto-optic
The control circuit of siren, it is possible to realize the coordinated signals between stand alone type smoke detector and acoustooptic alarm, and can control
The gradual change from low to high of the sound pressure level of acoustooptic alarm processed.
For solving above-mentioned technical problem, the technical scheme that this utility model uses is: provide one to be used for connecting solely
Vertical smoke detector and the control circuit of acoustooptic alarm, including for connecting stand alone type smoke detector and acoustooptic alarm
Input/output interface, the power supply input protection circuit being all connected with input/output interface, indicator light circuit, signal detection electricity
Road, delay control circuit, power supply output control circuit, power supply input protection circuit, signal deteching circuit, delay control circuit
Outfan is connected with power supply output control circuit.
In one preferred embodiment of this utility model, power supply input protection circuit includes diode V1, TVS diode
V3, electrochemical capacitor C4, the positive pole of diode V1 is connected with the input/output interface being connected stand alone type smoke detector, negative pole connects
Electrochemical capacitor C4 and TVS diode V3, ground connection after electrochemical capacitor C4 is in parallel with TVS diode V3.Power supply input protection circuit is protected
Card input power can export steady voltage when there is fluctuation, carries out overvoltage protection and anti-reverse power connection.
In one preferred embodiment of this utility model, indicator light circuit is for the duty of indicating circuit, and it includes
Light emitting diode HL1, resistance R6, resistance R6 connect with light emitting diode HL1 after ground connection, the input of R6 connects power supply.
In one preferred embodiment of this utility model, signal deteching circuit is used for detecting stand alone type smoke detector output
Fire alarm closure signal, it includes resistance R1, R2 and electric capacity C1, and one end of R1 is defeated with the input being connected stand alone type smoke detector
Ground connection after outgoing interface is connected, the other end is connected with R2, C1 and R2 is in parallel.
In one preferred embodiment of this utility model, it is alert that power supply output control circuit controls acousto-optic for out-put supply
Report device work, it includes resistance R3, R8, R9, electric capacity C5, NPN type triode V5, diode V2 and relay K 1, one end of R3
Be connected with R1, the other end is connected with the base stage of V5, and the positive pole of C5 is connected with the base stage of V5, minus earth, the grounded emitter of V5,
The positive pole of V2 and the colelctor electrode of V5 are connected, negative pole is connected the negative pole of V1, and the coil input end of relay K 1 is in parallel with V2, the public affairs of K1
End connects R8, R9 altogether, and the normally opened contact of K1 is connected with the input/output interface being connected acoustooptic alarm, and the normally-closed contact of K1 hangs
Sky, resistance R8 with R9 is in parallel, and one end of R8 connects the negative pole of V2, the common port of other end connection K1.
In one preferred embodiment of this utility model, delay control circuit is used for controlling acoustooptic alarm sound pressure level gradually
Becoming, it includes resistance R4, R5, R7, R10, electric capacity C2, C3, C6, Zener diode V4, audion V6, V7, one end of R10 and company
Connect the positive pole that input/output interface is connected, the other end connects C6 of stand alone type smoke detector, the minus earth of C6, one end of R4
Be connected with the positive pole of C6, the other end is connected the negative pole of V4, and the positive pole of V4 connects the base stage of V6, the base stage of one end connection V6 of C2,
The other end be connected with the emitter stage of V6 after ground connection, the colelctor electrode of V6 is connected with one end of R7, the base stage of the other end of R7 connection V7,
After R5 with C3 parallel connection, one end is connected the base stage of V7, the emitter stage of other end connection V7, and the emitter stage of V7 connects the negative pole of V2.
The beneficial effects of the utility model are: this utility model can receive the fire alarm Guan Bi letter of stand alone type smoke detector
Number, control acoustooptic alarm and send fire alarm acoustical signal and optical signal, it is achieved that stand alone type smoke detector and audible and visible alarm
The coordinated signals of device, installs easy-to-connect, and can control the gradual change from low to high of the sound pressure level of acoustooptic alarm.
Accompanying drawing explanation
Fig. 1 is that this utility model is for connecting the system frame of the control circuit of stand alone type smoke detector and acoustooptic alarm
Figure；
Fig. 2 is the circuit theory diagrams of described control circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model
Can be easier to be readily appreciated by one skilled in the art with feature, thus protection domain of the present utility model is made apparent clearly
Define.
Referring to Fig. 1 and Fig. 2, this utility model embodiment includes:
A kind of for connecting stand alone type smoke detector and the control circuit of acoustooptic alarm, including for connecting stand alone type
Smoke detector and the input/output interface of acoustooptic alarm, the power supply input protection circuit being all connected with input/output interface,
Indicator light circuit, signal deteching circuit, delay control circuit, power supply output control circuit, power supply input protection circuit, signal are examined
Slowdown monitoring circuit, the outfan of delay control circuit are connected with power supply output control circuit.
In a preferred embodiment, described input/output interface X1 includes some pins, and wherein 1 foot and 3 feet connect independent
Formula smoke detector, for receiving the fire alarm closure signal of stand alone type smoke detector；2 feet and 4 feet connect fire acousto-optic
Siren, is used for controlling acoustooptic alarm.The supply voltage of described control circuit is 24V.
Circuit structure and the principle of described control circuit is specifically described below in conjunction with Fig. 2.
Power supply input protection circuit ensures that input power can export steady voltage when there is fluctuation, carries out overvoltage protection
With anti-reverse power connection, its circuit includes diode V1, TVS diode V3, electrochemical capacitor C4, the positive pole of diode V1 be connected solely
The input/output interface of vertical smoke detector is connected, negative pole connects electrochemical capacitor C4 and TVS diode V3, electrochemical capacitor C4 with
Ground connection after the parallel connection of TVS diode V3.Utilizing the unidirectional general character of diode, V1 conducting during the input of power supply forward, reversal of power is defeated
Fashionable V1 is not turned on, and protection subsequent conditioning circuit is not damaged by.TVS diode V3 ensures to limit voltage when input voltage is too high
Volt clamper, input power is filtered by C4, it is ensured that input power can export steady voltage when there is fluctuation.
Indicator light circuit is for the duty of indicating circuit, and it includes light emitting diode HL1, resistance R6, resistance R6 with
Ground connection after light emitting diode HL1 series connection, the input of R6 connects power supply.When input power is powered, light emitting diode HL1 lights, and uses
Duty in indicating circuit.Resistance R6 carries out current limliting, prevents that electric current is excessive burns out light emitting diode HL1.
Signal deteching circuit for detect stand alone type smoke detector output fire alarm closure signal, it include resistance R1,
R2 and electric capacity C1, after one end of R1 is connected with the input/output interface being connected stand alone type smoke detector, the other end is connected with R2
Ground connection, C1 and R2 is in parallel.Wherein resistance R1 and R2 constitutes bleeder circuit, and input signal is filtered by electric capacity C1.When receiving
After the fire alarm closure signal of stand alone type smoke detector, 1 foot and 3 feet of X1 communicate, and current flowing resistance R1 and R2, at R2
The voltage of upper generation is R2/ (R1+R2) * 24(V).
Power supply output control circuit for out-put supply control acoustooptic alarm work, it include resistance R3, R8, R9,
Electric capacity C5, NPN type triode V5, diode V2 and relay K 1, one end of R3 is connected with R1, the base stage phase of the other end and V5
Even, the positive pole of C5 is connected with the base stage of V5, minus earth, the grounded emitter of V5, and the positive pole of V2 is connected with the colelctor electrode of V5, bears
Pole connects the negative pole of V1, and the coil input end of relay K 1 is in parallel with V2, and the common port of K1 connects R8, R9, the normally opened contact of K1
Being connected with the input/output interface being connected acoustooptic alarm, the normally-closed contact of K1 is unsettled, and resistance R8 with R9 is in parallel, and one end of R8 is even
Connect the negative pole of V2, the common port of other end connection K1.The normally opened contact of K1 connects 4 feet of X1, for providing for acoustooptic alarm
Input power.
When being not detected by fire alarm closure signal, the resistance R2 both end voltage in described signal deteching circuit is zero, thus
Electric capacity C5 both end voltage is zero, and audion V5 is in cut-off state, does not has electric current to flow through, now relay in relay K 1 coil
Being in normally off, normally opened contact output voltage is zero, and acoustooptic alarm does not works；When fire alarm closure signal being detected, institute
State the resistance R2 two ends in signal deteching circuit and produce voltage, and by resistance R3, electric capacity C5 is charged, when C5 both end voltage reaches
Turning on to audion V5 during 0.7V, electric current flows through relay coil, and relay K 1 normally opened contact closes, and exports the confession of 24V voltage
Acoustooptic alarm works, and resistance R8, R9 parallel connection limits output size of current.When relay K 1 is converted to disconnect from closure state
During state, the coil of relay can produce a reverse electromotive force, in order to prevent this reverse electromotive force from making circuit
Becoming infringement, at the two ends of relay, a diode V2 in parallel is used for absorbing inverse electromotive force.
Delay control circuit is used for controlling acoustooptic alarm sound pressure level gradual change, and it includes resistance R4, R5, R7, R10, electric capacity
C2, C3, C6, Zener diode V4, audion V6, V7, one end of R10 connects with the input and output being connected stand alone type smoke detector
Mouth is connected, the positive pole of other end connection C6, and the minus earth of C6, one end of R4 is connected with the positive pole of C6, the other end is connected V4's
Negative pole, the positive pole of V4 connects the base stage of V6, and one end of C2 connects ground connection after the base stage of V6, the other end are connected with the emitter stage of V6,
The colelctor electrode of V6 is connected with one end of R7, and the other end of R7 connects the base stage of V7, after R5 with C3 parallel connection one end be connected V7 base stage,
The other end connects the emitter stage of V7, and the emitter stage of V7 connects the negative pole of V2.
When fire alarm closure signal being detected, 1 foot of X1 and the conducting of 3 feet, resistance R10 input terminal voltage is 24V, by electricity
Resistance R10 starts to charge electric capacity C6.When electric capacity C6 both end voltage is less than 10V, Zener diode V4 is in cut-off state, electric capacity
C2 both end voltage is zero, thus causes audion V6, V7 to flow out without audion V7 all in cut-off state, output electric current,
And flow out through current-limiting resistance R8, R9, cause exporting electric current the least, thus the sound pressure level of acoustooptic alarm work is the least.Work as electricity
After appearance C6 both end voltage reaches 10V, Zener diode V4 turns on, and C2 two ends exist voltage, so that triode V6, V7 lead
Logical.After V7 conducting, resistance R8, R9 short circuit, output electric current flows out through V7 and relay K 1, and now electric current output is very big, so that
The sound pressure level of acoustooptic alarm work increases, it is achieved that the gradual change from low to high of the sound pressure level of acoustooptic alarm.Charge according to electric capacity
Principle, the charging interval of electric capacity C6 is t=RC, therefore acoustooptic alarm sound pressure level started to increase after the t second.
Control circuit described in the utility model connects stand alone type smoke detector and acoustooptic alarm, can receive stand alone type
The fire alarm closure signal of smoke detector, controls acoustooptic alarm and sends fire alarm acoustical signal and optical signal, it is achieved that be independent
Formula smoke detector and the coordinated signals of acoustooptic alarm, install easy-to-connect, and delay control circuit therein can control sound
The gradual change from low to high of the sound pressure level of light siren, is widely used.
The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model, every
Utilize equivalent structure or equivalence flow process conversion that this utility model description and accompanying drawing content made, or be directly or indirectly used in
Other relevant technical fields, are the most in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. for connecting stand alone type smoke detector and a control circuit for acoustooptic alarm, including for connecting stand alone type sense
Smoke detector and the input/output interface of acoustooptic alarm, it is characterised in that also include the electricity being all connected with input/output interface
Source input protection circuit, indicator light circuit, signal deteching circuit, delay control circuit, power supply output control circuit, power supply inputs
Protection circuit, signal deteching circuit, the outfan of delay control circuit are connected with power supply output control circuit.
The most according to claim 1 for connecting stand alone type smoke detector and the control circuit of acoustooptic alarm, it is special
Levying and be, power supply input protection circuit includes diode V1, TVS diode V3, electrochemical capacitor C4, the positive pole of diode V1 and company
The input/output interface connecing stand alone type smoke detector is connected, negative pole connects electrochemical capacitor C4 and TVS diode V3, electrochemical capacitor
Ground connection after C4 is in parallel with TVS diode V3.
The most according to claim 1 for connecting stand alone type smoke detector and the control circuit of acoustooptic alarm, it is special
Levying and be, signal deteching circuit includes resistance R1, R2 and electric capacity C1, one end of R1 and the input being connected stand alone type smoke detector
Ground connection after output interface is connected, the other end is connected with R2, C1 and R2 is in parallel.
The most according to claim 1 for connecting stand alone type smoke detector and the control circuit of acoustooptic alarm, it is special
Levying and be, power supply output control circuit includes resistance R3, R8, R9, electric capacity C5, NPN type triode V5, diode V2 and relay
One end of K1, R3 is connected with R1, the other end is connected with the base stage of V5, and the positive pole of C5 is connected with the base stage of V5, minus earth, V5's
Grounded emitter, the positive pole of V2 and the colelctor electrode of V5 are connected, negative pole is connected the negative pole of V1, the coil input end of relay K 1 and V2
Parallel connection, the common port of K1 connects R8, R9, and the normally opened contact of K1 is connected with the input/output interface being connected acoustooptic alarm, K1's
Normally-closed contact is unsettled, and resistance R8 with R9 is in parallel, and one end of R8 connects the negative pole of V2, the common port of other end connection K1.
The most according to claim 1 for connecting stand alone type smoke detector and the control circuit of acoustooptic alarm, it is special
Levying and be, delay control circuit includes resistance R4, R5, R7, R10, electric capacity C2, C3, C6, Zener diode V4, audion V6,
One end of V7, R10 is connected with the input/output interface being connected stand alone type smoke detector, the positive pole of other end connection C6, C6's
Minus earth, one end of R4 and the positive pole of C6 are connected, the other end is connected the negative pole of V4, the base stage of the positive pole connection V6 of V4, C2's
One end connects ground connection after the base stage of V6, the other end are connected with the emitter stage of V6, and the colelctor electrode of V6 is connected with one end of R7, and R7's is another
One end connects the base stage of V7, and after R5 with C3 parallel connection, one end is connected the base stage of V7, the emitter stage of other end connection V7, the emitter stage of V7
Connect the negative pole of V2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620490926.8U CN205680232U (en) | 2016-05-21 | 2016-05-21 | For connecting stand alone type smoke detector and the control circuit of acoustooptic alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620490926.8U CN205680232U (en) | 2016-05-21 | 2016-05-21 | For connecting stand alone type smoke detector and the control circuit of acoustooptic alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205680232U true CN205680232U (en) | 2016-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620490926.8U Active CN205680232U (en) | 2016-05-21 | 2016-05-21 | For connecting stand alone type smoke detector and the control circuit of acoustooptic alarm |
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| Country | Link |
|---|---|
| CN (1) | CN205680232U (en) |
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2016
- 2016-05-21 CN CN201620490926.8U patent/CN205680232U/en active Active
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