CN2373845Y - Fire alarm emergency indicating device for fire fighting - Google Patents
Fire alarm emergency indicating device for fire fighting Download PDFInfo
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- CN2373845Y CN2373845Y CN 98232086 CN98232086U CN2373845Y CN 2373845 Y CN2373845 Y CN 2373845Y CN 98232086 CN98232086 CN 98232086 CN 98232086 U CN98232086 U CN 98232086U CN 2373845 Y CN2373845 Y CN 2373845Y
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Abstract
The utility model provides a fire alarm emergency indicating device for fire protection, which is mainly composed of a battery, a luminous display plate, an electronic switching circuit, an output circuit of power failure prompting sounds, an alarm sound output circuit, an alarm signal detection circuit, etc. The utility model is characterized in that the alarm signal detection circuit is composed of integrated chips IC101, IC102, IC103, and peripheral elements, wherein, the IC101 is an alarm signal conversion, and the 1 pin of the IC101 is formed into four paths of signal input ends through four resistors; the output circuit of power failure prompting sounds is composed of IC202, IC203, and peripheral elements thereof. A buzzer can send out the prompting sounds in a power failure for indicting a crowd to evacuate; at the same time, the alarm signal detection circuit can detect fire alarm signals and can send out alarm sounds through the buzzer when a fire hazard happens; with the characteristics of less power consumption, stable and reliable work, high brightness, uniform luminescence, wide voltage range, etc., the utility model can be widely used for various public places.
Description
The utility model relates to fire fighting equipment, particularly a kind of fire-fighting fire alarm indicating device of meeting an urgent need.
Common emergent indicating device, only when power supply was undesired, pilot lamp played the function that is converted to emergency rating, and can not adapt to complex environment.
The purpose of this utility model provide a kind of can be when undesired in power supply, when being converted to emergency rating, sends by pilot lamp the power failure prompting sound, and in time evacuate the crowd in an orderly manner, thereby the emergent indicating device of the warning that ensures public safety by the display indicated direction.
The purpose of this utility model is achieved by the following scheme: by power supply, display board drives, electrolumnescent display panel, automatically charging detects, standby power supply, electronic switch 1. 2., discharge off detects, the emergent detection, the output of power failure prompting sound, hummer (1), chimes of doom output, hummer (2), circuit such as alerting signal detection constitute, said alerting signal testing circuit is by ic chip 101, IC102, IC103, triode Q101, Q102, Q103, Q104 and peripheral resistance thereof, electric capacity, diode is formed, wherein IC101 is the alerting signal conversion, and its 1 pin connects current-limiting resistance R105 to R108 and forms four road signal input part X
1To X
4, 2 pin are common port X
0When wherein appointing one or more that alerting signal input is arranged, the 3rd pin of IC101 is high level signal, and be connected to the base stage of triode Q102 through resistance R 109, the current collection of Q102, Q103 is low level signal very, both connect after resistance R 103, R101 are connected to the base stage of triode Q101, and the collector of Q101 is one tunnel 16 pin that are connected to IC102 respectively, another road sound taking alarm output circuit; Said power failure prompting output circuit is by current collecting piece IC202, IC203, diode D18, triode Q201, Q11, Q204 and peripheral resistance thereof, electric capacity is formed, wherein by diode D18, D20, triode Q11 forms power cut detection circuit, when having a power failure, the collector output low level current potential of triode Q11, through diode D20, resistance R 202 is connected to the base stage of triode Q201, make the Q201 conducting, power supply through the collector of Q201 to IC202, IC203, transformer T201 power supply, IC202 enters time status, the oscillator starting of oscillation that IC203 forms, oscillator signal is through capacitor C 208, resistance R 222 is delivered to the base stage of Q204, is amplified after output transformer T201 is connected to hummer SP1 by Q204 to produce prompting sound.
Advantage of the present utility model is: effectively strengthened emergency light emergency capability under special circumstances, when power supply is undesired, sent the power failure prompting sound when pilot lamp is converted to emergency rating especially, in time evacuated by direction indication in an orderly manner to instruct people.When breaking out of fire, this device can detect fire signal very delicately simultaneously, and sends chimes of doom by the chimes of doom output circuit.Have reasonable in design, reliable and stable, little power consumption, the brightness height, it is luminous that evenly the power failure emergency time is long, fire-fighting fire alarm signal wide input voltage range can be from 12 volts to 220 volts, friendship directly all can.Be furnished with 4 input interfaces, can insert four systems work simultaneously.Alarm sound can reach 100 decibels.
Below in conjunction with accompanying drawing the utility model is illustrated:
Fig. 1 is a circuit block diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
As shown in Figure 1 and Figure 2: this device comprise power supply, automatically charge detection, standby power supply, electronic switch 1., discharge off detects, emergently detect, electronic switch 2., circuit formations such as display board tests, electrolumnescent display panel, the output of power failure prompting sound, hummer SP1, chimes of doom output, hummer SP2, alerting signal detection.
The principle of work of this device is as follows:
1. circuit just often, power supply is by triode Q1, Q2, inductance L 1 transformer T1, diode D4 and peripheral resistance thereof, electric capacity is formed, 220 volts of voltages are supplied with switching tube Q1 after commutator tube D2 rectification and capacitor C 2 filtering, Q2, resistance R 4, the pulse producer that capacitor C 3 and bilateral diode BD1 form, the base stage that while enters Q2 through BD1, make Q2 enter magnifying state, the collector of Q2 feeds back to Q1 by inductance L 1 transformer T1, make Q1, Q2, L1 produces vibration, oscillating voltage output is through the T1 step-down, through commutator tube D4 rectification, capacitor C 6 filtering produce the working power that low-voltage dc power supply is supplied with complete machine, and wherein capacitor C 4, C5 is a capacitance.
2. display panel drive circuit, constitute by triode Q3, stabilivolt DW1, triode Q4, transformer T2 and peripheral resistance capacitance thereof, wherein Q3, DWI, resistance R 5 are formed voltage stabilizer, output stable DC voltage is supplied with oscillating tube Q4, forms single-tube oscillator by Q4, T2, and resistance R 6, R7 are starting resistance, provide bias voltage by diode D6, capacitor C 10 for Q4, make oscillator keep vibration, and after T2 boosts, supply with electrolumnescent display panel EL, make display board luminous.
3. the testing circuit that charges automatically is made of IC1A, IC2A, DW2, Q8, pilot lamp LED2, LED3, LED4 and peripheral resistance thereof etc.Provide 2 pin of reference voltage by DW2 to IC1A, 3 pin are formed voltage divider through R22, R27, R28 cell voltage are detected, when cell voltage is lower than standard value, through R22, R27, R28 dividing potential drop, when the partial pressure potential of IC1A3 pin is lower than 2 pin, side makes the Q8 conducting by the 1 pin output low level of IC1A through R31.R33 is a current-limiting resistance, and to battery charge, this moment, 1 pin of IC1A was a low level to power supply through R33, Q8, D16, and another road is through 5 pin of R29 to IC2A, and then 7 pin of IC2A are low level, and this moment, pilot lamp LED3 lighted, during the expression charging is carried out.After battery was full of electricity, by resistance R 22, R27, R28 dividing potential drop, current potential was higher than the 2 pin current potentials of ICIA, and then 1 pin of IC1A output high level makes Q8 end through R31, and charging stops.5 pin of another path resistor of 1 pin R29 to IC2A of IC1A, 7 pin that make IC2A are high level, pilot lamp LED3 extinguishes.The D13 reverse bias, this moment, power supply was lighted pilot lamp LED2 through R13, and the expression charging finishes, and enters normal waiting status.
4. emergent the detection and electronic switching circuit (1) is made up of diode D18, triode Q11, Q9, Q10 and peripheral resistance thereof.When normal power supply, power supply is received noble potential through D18 on the Q11 base potential, and the collector of Q11 also is a noble potential, and the base stage of Q10 is a noble potential, and Q9, Q10 end, and battery can not discharge by Q9.When having a power failure, capacitor C 6 both end voltage descend gradually, and two of primary voltage/for the moment, electric current makes the Q11 conducting through D18 when dropping to, the collector output electronegative potential of Q11, the base stage of Q10 also is an electronegative potential, the Q10 conducting, and the emitter of Q10 becomes electronegative potential, the base stage of Q9 also is an electronegative potential, the Q9 conducting, battery is powered to display panel drive by Q9, and it is luminous that display board is continued.
5. discharge off testing circuit: form by IC1B, DW2 and peripheral cell thereof.When the Q9 turn-on battery discharged, R44, R45 partial pressure potential were higher than the reference potential of pilot lamp DW2, and the 5 pin current potentials of IC1B are greater than 6 pin current potentials, and 7 pin output high level is delivered to the base stage of Q11 through R43, makes the collector electronegative potential of Q11, makes Q9, Q10 continue conducting.When battery discharge during near final voltage; be equivalent to 85% of normal voltage; resistance R 44, R45 partial pressure potential are lower than pilot lamp DW2 reference voltage; the 5 pin current potentials of IC1B are lower than 6 pin current potentials, then by 7 pin output electronegative potential, make the base stage low level of Q11 through R43; the collector high level of Q11; make Q10, Q9 end, battery is stopped power supply, thereby the protection battery is avoided overdischarge and damaged.
6. prompting sound output circuit: form by Q201, IC202, IC203, Q204, T201, hummer SP1.When having a power failure, the current collection of Q11 is electronegative potential very, base stage through D20, R202 to Q201, make the Q201 conducting, to IC202, IC203, T201 power supply, IC202 enters time status to power supply through Q201, the oscillator starting of oscillation of being made up of IC203, vibration output is carried out power amplification through C208, R222 to the base stage of Q204, drives hummer SP1 through output transformer T201 and sends the power failure prompting sound.Timer IC202 is through (but setting-up time) after the some time, and 1 pin of IC202 is exported high level, and 11 pin of a path D202 to IC202 carry out the state locking, and another road makes its failure of oscillation through 3 pin of D203 to IC203, thereby stops prompting sound output.
7. alerting signal testing circuit, form by input port X1, X2, X3, X4, X0, IC101 and peripheral cell, R105-R108 is the current-limiting resistance of input port, and the IC101 input current is no more than standard value when guaranteeing maximum input signal, to guarantee that IC101 is not damaged.IC101 is a photoelectrical coupler, act as input signal and localpower system are isolated, and when fire alarm signal was imported, 3 pin of IC101 output high level made 2. conducting of electronic switch.
8. electronic switching circuit 2.: be made up of Q102, Q103, Q101 and peripheral resistance thereof, electric capacity, when 3 pin of IC101 are high level, the base stage of Q102 is a high level, the base stage of Q103 is a high level, the current collection of the collector of Q102 and Q103 low level very then, base stage through resistance R 103 to Q101 makes the Q101 conducting, and standby power supply is powered to IC102, IC103, T101 through Q101.
9. chimes of doom output circuit: form by IC102, IC103, Q104, T101, SP2 and peripheral cell thereof, when the Q101 conducting, the IC102 timer enters time status, IC103 is a chimes of doom oscillator starting oscillation, 6 pin output oscillating voltage by IC103, through C108, R122 base stage to Q104, carry out power amplification by Q104, drive hummer SP2 through output transformer T101 and send chimes of doom.The IC102 timer is through (but setting-up time) after the some time, and 1 pin is exported high level, and one tunnel 11 pin through D102 to IC102 carry out the state locking, and another path D103 makes the IC103 failure of oscillation to 3 pin of IC103, and chimes of doom stops.
The model of above-mentioned each circuit chip is as follows:
IC1, IC2 are LM393
IC3 78L08
IC4、IC5 PC817
IC101 PC814
IC102、IC202 CD4060
IC103、IC203 CD4069
Claims (1)
1, a kind of fire-fighting fire alarm indicating device of meeting an urgent need, by power supply, display board drives, electrolumnescent display panel, automatically charging detects, standby power supply, electronic switch 1. 2., discharge off detects, the emergent detection, the output of power failure prompting sound, hummer 1., chimes of doom output, hummer 2., circuit such as alerting signal detection constitute, it is characterized in that: said alerting signal testing circuit is by ic chip 101, IC102, IC103, triode Q101, Q102, Q103, Q104 and peripheral resistance thereof, electric capacity, diode is formed, wherein IC101 is the alerting signal conversion, its 1 pin connects current-limiting resistance R105 to R108 and forms four road signal input part X1 to X4,2 pin are common port X0, when wherein appointing one or more that alerting signal input is arranged, the 3rd pin of IC101 is high level signal, and be connected to the base stage of triode Q102 through resistance R 109, Q102, the current collection of Q103 is low level signal very, both connect after resistance R 103, R101 is connected to the base stage of triode Q101, the collector of Q101 is one tunnel 16 pin that are connected to IC102 respectively, another road sound taking alarm output circuit; Said power failure prompting output circuit is by ic chip 202, IC203, diode D18, triode Q201, Q11, Q204 and peripheral resistance thereof, electric capacity is formed, wherein by diode D18, D20 triode Q11 forms power cut detection circuit, when having a power failure, triode Q11 collector output electronegative potential, through diode D20, resistance R 202 is connected to the base stage of Q201, make the Q201 conducting, power supply through the collector of Q201 to IC202, IC203, the T201 power supply, IC202 enters time status, the oscillator starting of oscillation that IC203 forms, oscillator signal is through capacitor C 208, resistance R 222 is delivered to the base stage of Q204, is amplified after output transformer T201 is connected to hummer SP1 by Q204 to produce prompting sound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98232086 CN2373845Y (en) | 1998-12-31 | 1998-12-31 | Fire alarm emergency indicating device for fire fighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98232086 CN2373845Y (en) | 1998-12-31 | 1998-12-31 | Fire alarm emergency indicating device for fire fighting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2373845Y true CN2373845Y (en) | 2000-04-12 |
Family
ID=33981196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98232086 Expired - Fee Related CN2373845Y (en) | 1998-12-31 | 1998-12-31 | Fire alarm emergency indicating device for fire fighting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2373845Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106686845A (en) * | 2015-11-06 | 2017-05-17 | 海洋王（东莞）照明科技有限公司 | Microwave sensing dimming circuit with emergency mode, and lamp |
-
1998
- 1998-12-31 CN CN 98232086 patent/CN2373845Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106686845A (en) * | 2015-11-06 | 2017-05-17 | 海洋王（东莞）照明科技有限公司 | Microwave sensing dimming circuit with emergency mode, and lamp |
| CN106686845B (en) * | 2015-11-06 | 2019-05-17 | 海洋王（东莞）照明科技有限公司 | Microwave induced light adjusting circuit and lamps and lanterns with contingency mode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |