CN2135811Y

CN2135811Y - Alarm device

Info

Publication number: CN2135811Y
Application number: CN 92211812
Authority: CN
Inventors: 隋创
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-10
Filing date: 1992-05-10
Publication date: 1993-06-09
Anticipated expiration: 2002-05-10

Abstract

The utility model relates to an alarm device which comprises a signal discrimination switch which is composed of an operational amplifier F007, a resistor RM and a switch KB1, a structure of automatic on-off of the power which is composed of a relay J and a composition resistor R8 and an automatic charging structure which is composed of a diode BG4, an adjustable resistor W1 and a zener diode DW. Because the operational amplifier F007 has the recognition function to the outside signal and the automatic on-off and the no charging structure, so the work of the utility model is stable and reliable, the ability against the damage is strong; no matter in the region which has alternating current or the region which has long time power cutting, the alarm device can alarm the society when encountered the fortuitous event. The power consumption of no alarm is almost zero, so the power consumption is very little. The utility model is in particular suitable for the alarming in the central city or the rural finance department.

Description

Alarm device

The utility model relates to the alarm that particularly a kind of financial department of a kind of alarm is used, and is made up of computing integrated package, relay, accumulator, is installed in finance or other relevant department in order to report to the police when these doors meet accident.

The various alarms of selling on market all because complex structure is not reported to the police during short circuit, react insensitive, are interfered easily, involve great expense, and particularly exist the shortcoming that can not report to the police when grid power blackout.

The purpose of this utility model provides a kind of such alarm, and this alarm is simple in structure, and price is low, particularly when electrical network has electricity or long-time do not report to the police at the short circuit of control occasion signal wire, the Shi Junneng that opens circuit when having electricity.

The alarm of forming by operational amplifier, relay, battery, triode, resistance, switch, make a pin connecting resistance of operational amplifier, and the other end of resistance joins by another pin that switch connects behind another resistance electricity with operational amplifier again, make another pin ground connection of operational amplifier again, and the tripod sending and receiving light pipe of operational amplifier, the negative pole of luminotron connects the base stage of triode again, and the 4th pin of operational amplifier connects another resistance again and forms the signal discriminating switch; Make coil one terminating resistor of relay, one contact of another relay termination of resistance, the coil other end ground connection of relay and battery cathode contact, another contact of relay joins by resistance and triode, and makes relay the 3rd contact connect battery positive voltage composition automatic power on-off structure; Make the emitter of a diode connect another diode and adjustable resistance, the base stage of the adjusting termination triode of adjustable resistance, another utmost point connecting resistance of triode, and the positive pole of another termination stabilivolt of adjustable resistance, the negative pole of stabilivolt connects positive source and forms automatic charging structure.

Because the utility model can be realized energising automatically, outage, and realize charging automatically, signal is discerned to external world again, therefore on user installation during the utility model, no matter be that electrical network has electricity, or the electrical network power failure of cutting off the power supply for a long time, can both be to social alarms when running into fortuitous event, thus can discharge fortuitous event rapidly.The utility model also has simple in structure, and therefore the characteristics that cost is low owing to can also can report to the police automatically, can prevent that the bad person from taking to destroy earlier the practice of committing a crime behind the alarm when short circuit, outage.

Further introduce the utility model below by accompanying drawing:

Accompanying drawing is the utility model structure principle chart.

Operational amplifier F007 has the resistance identification function among the figure, its 1 pin connecting resistance RM, the other end of resistance R M again with K switch B ₁Join KB ₁Pass through resistance R again ₃Join with 2 pin of F007; The 4 pin ground connection of F007; 6 pin sending and receiving optical diode LED ₁, and LED ₁Negative pole meet triode BC ₁Base stage; 7 pin pass through resistance R ₂Also be connected on 2 pin of F007.

Circuit breaker J and resistance R ₈Formed auto switching electrical mechanisms of the present utility model.The coil G end of relay J passes through resistance R ₈C joins with relay contact, and the H of relay coil end ground connection and battery terminal negative; Relay J contact E passes through resistance R ₆With triode BG ₁Join; Contact D connects the positive pole of electrical storage cell.

Triode BG among the figure ₄The emitter E utmost point meet diode D and adjustable resistance W ₁, stabilivolt DW and diode D ₁Formed automatic charging structure.Triode BG ₄The emitter E utmost point meet diode D ₁With adjustable electric group W ₁, W ₁Adjusting termination BG ₄Base stage; Adjusting termination BG ₄Base stage; Triode BG ₄C utmost point connecting resistance R ₉, R ₁₀W ₁Another termination stabilivolt DW ₁Positive pole, negative pole connects positive source.

The course of work of the present utility model is like this: signal carries out recognition function because integrated package operational amplifier F007 has to external world, as K switch B ₁Disconnect or KB ₂Conducting is damaged with regard to the balance that makes integrated operational amplifier F007 built-in potential, thereby makes the output point output noble potential of F007 control BG ₁Break-make.Capacitor C ₃, C ₄Be the voltage stabilizing time-lag action, thus this alarm no matter connect control line be to open circuit or during short circuit, alarm can both be reported to the police.So it has reliable preventing destructing performance.While triode BG ₂And BG ₃The composite amplifier of forming need not quiescent point, when no signal, and BG ₂And BG ₃Basically be in cut-off state, its power consumption electric current is zero, so the power consumption under normal circumstances of this alarm is very little, thereby has saved electric energy, has prolonged the service time of battery when not having alternating current.The power supply part, electrical network is sent a telegram here after transformer is depressured to 12V, by diode D ₂, D ₃, D ₄, D ₅Drag flow, C ₅Carry out filtering voltage regulation through resistance R ₈The coil of the relay J of flowing through makes relay be in attracting state, resistance R all the time ₈Be metering function, in order to the coil of protective relay J.Contact EC connects when relay is in attracting state, and the alarm AC power will be charged to battery DC simultaneously this moment, when charging, and LED ₂It has been the charging Presentation Function.Resistance R ₉Be metering function, R ₁₀When charging, electric current is limited, make maximum be no more than 60mA.By adjustable resistance W ₁, diode D ₁, stabilivolt DW and diode BG ₄The automatic charger of forming, triode BG when the full electricity of battery Dc ₄Automatic cut-off, adjustable resistance W ₁Be the levelling charging current, when cell voltage drops to a certain degree, charge automatically.

During power failure, because AC-less power, the relay coil no current disconnects itself and C contact, and connects the D point, and Dc powers to alarm by battery.LED in the circuit ₃Be to have or not the alternating current indicative function, during no alternating current in order to reduce quiescent dissipation, LED ₃Not luminous, LED ₃It has been the warning indicative function.

Claims

1, a kind of alarm of being made up of operational amplifier, relay, battery, triode, resistance, switch is characterized by:

A: the 1 pin connecting resistance RM of operational amplifier F007, and the other end of resistance R M is by K switch B1, connecting resistance R3 joins with 2 pin of F007 again, the 4 pin ground connection of operational amplifier F007, the 6 pin sending and receiving light pipe LED1 of F007, the negative pole of LED1 connects the base stage of triode BC1 again, and the 7 pin connecting resistance R2 of F007 connect 2 pin again and form the signal discriminating switch;

B: the coil C terminating resistor R8 of relay J, the contact C of another relay termination of R8, the coil H end ground connection of relay J and the negative pole of battery DC, contact E joins with triode BC1 by resistance R 6, and contact D connects battery positive voltage and forms the automatic power on-off structure;

C: the emitter E utmost point of diode BC4 meets diode D1 and adjustable resistance W1, the base stage of the adjusting termination triode BC4 of W1, C utmost point connecting resistance R9, the R10 of triode BC4, the positive pole of another termination stabilivolt DW1 of adjustable resistance W1, negative pole connects positive source, forms automatic charging structure.