CN2108969U - Multifunctional alarm - Google Patents

Abstract

The utility model relates to a multifunctional alarm which mainly solves the problems that the existing multifunctional alarm has high early alarming power consumption, needs to be switched on and off frequently, needs converting functions, has cockamamie and inconvenient use, and can not monitor and give early alarm for various abnormal situations reliably and simultaneously for a long time, the alarming sound is not easily differentiated, etc. The multifunctional alarm uses a plurality of simulation sound integrated blocks of a selecting sound triggering end as a sound source, a plurality of triggering control circuits use triodes as controlling pipes and respectively trigger the integrated blocks to send out different alarming (music) sound signals, the signals are sent to a power amplification circuit, and the power amplification circuit amplifies the signals and sound. The on-off state of each triggering control circuit is controlled appropriately by a corresponding sensing device and a time delay capacitor which are connected between base jetting poles of the controlling pipes in parallel.

Description

Multifunctional alarm

The utility model relates to a kind of electronic alarm device, especially the alarm of multifunctional and multipurpose.

Existing multifunction alarm device differs from one another, and deficiency is also respectively arranged.Its deficiency has: or circuit is numerous and diverse, cost is too high, power consumption is excessive, need switching on and shutting down, to multiple abnormal conditions, can't monitor early warning for a long time simultaneously.Or circuit is not good enough, poor-performing, and translation function increases trouble, multi-functional performing practically no function.For example, CN87200922 described " multifunctional domestic alarm " reports to the police for two and adopts discrete component, and doorbell is used integrated package again, seems numerous and diverse, influences reliability, and power consumption is excessive, has to take AC energy.Gas sensor longevity weak point, reliably early warning simultaneously for a long time in fact in addition.And for example, CN9120753,3 described " six function electronic alarms " are though only use an integrated package, but adopted the structure of main frame and annex clutch, promptly lean on mechanical switch or patch translation function, cause six functions real, be difficult to practicality for single function of changeable.

The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of structure terse, easy to use, can be under the prerequisite of little power consumption, simultaneously at least two kinds of abnormal conditions are monitored early warning reliably for a long time, and can be in good time reliably with different alert (pleasure) acoustic alarms, the multi-function alarm of high performance-price ratio.

The utility model is realized with following scheme: mainly comprise housing at one, direct supply, loudspeaker, power amplification circuit, the simulated sound circuit, and with the matched senser element of abnormal information, in the multi-function alarm circuit through connecting to form, the simulated sound circuit is by having at least two choosing sound trigger ends, the simulated sound integrated package of band oscillation resistance constitutes, the input end of its output termination power amplification circuit, cross-over connection anti-interference capacitor between negative choosing sound trigger end and the power cathode, cross-over connection anti-interference capacitor between key player on a team's sound trigger end and the positive source, the anti-interference resistance of cross-over connection between perhaps negative choosing sound trigger end and the positive source, the anti-interference resistance of cross-over connection between key player on a team's sound trigger end and the power cathode.Also being provided with the triode is at least two trigger control circuit that control tube constitutes, the choosing sound trigger end of their output termination correspondence, and connect the control tube of negative choosing sound trigger end, select its emitter of NPN type to connect power cathode, or select its collector of positive-negative-positive to connect power cathode, and connect the control tube of key player on a team's sound trigger end, select its emitter of positive-negative-positive to connect positive source, or select its collector of NPN type to connect positive source, the base stage of respectively making the triode of control tube is connected to biasing resistance, and cross-over connection has senser element and delay capacitor between the basic emitter-base bandgap grading.

The course of work of the present utility model is such: when abnormal conditions did not take place, when promptly monitoring early warning, the electric signal or the impedance of each senser element output were very little, the base flow of each control tube is by the senser element bypass, control tube ends, the integrated package work that is not triggered, and loudspeaker is noiseless.At this moment complete machine electric current is static, and it only depends on penetrating of integrated package quiescent current, each triode and last biasing resistance electric current, only several microamperes of actual measurements, power consumption hardly.Therefore, can not establish power switch, so that monitor abnormal conditions, i.e. early warning for a long time simultaneously.In case generation abnormal conditions, the electric signal or the impedance of the output of sensing components and parts are bigger, through behind the suitable time-delay, control tube obtains the base flow of enough conductings and is saturated, the choosing sound trigger end of integrated package obtains the relative trigger current potential, and triggers integrated package output analog acoustic signal, after power amplifier amplifies, promote Yang Shengqi and send loud police (pleasure) sound, in time correctly handle with the prompting people.

Early warning electric current of the present utility model, promptly the complete machine quiescent current only depends on the electric current of penetrating of static each pipe of integrated package and last biasing resistance, surveys only microampere order, can not shut down.This has not only reduced the trouble of subscriber switch machine and the future trouble that causes thus, can also guarantee the basic need to the early warning of multiple abnormal conditions monitored for prolonged periods of time.Its no function switching device, but being provided with can be respectively to various abnormal conditions, monitors, controls, triggers the circuit independently separately of warning, is provided with anti-interference element again, can monitor early warning simultaneously to multiple abnormal conditions, and very reliable.This has brought the tangible convenience and the sense of security to the user.In case different abnormal conditions take place, it can remove to trigger integrated package by different independently monitoring, control, trigger circuit, sends distinct police (pleasure) sound, with the in time correct abnormal conditions that take place of disposing of prompting people.

The utility model has the following drawings:

Fig. 1 is the embodiment circuit diagram that constitutes with the integrated package that positive and negative mixing triggers.

Fig. 2 is the most preferred embodiment circuit diagram that constitutes with the negative integrated package that triggers.

The trigger control circuit that provides in the accompanying drawing is the circuit of transistor collector output, also can change the circuit of emitter output into, as long as this change the triode that connects negative choosing sound trigger end into positive-negative-positive, and its collector connects power cathode; The triode that connects key player on a team's sound trigger end is changed into the NPN type, and its collector connects positive source.Only provide two functions in the accompanying drawing, increasing function need increase and the newly-increased matched senser element of abnormal information that is monitored, increase trigger control circuit, anti-interference capacitor, delay capacitor simultaneously, and select for use and have the more simulated sound integrated package of multiselect sound trigger end, and they are connected by above-mentioned.

Below in conjunction with accompanying drawing the utility model is further described:

Embodiment 1. is with reference to Fig. 1, and this embodiment is that to mix the simulated sound integrated package (IC1) that triggers with positive negative potential be the core formation, and (IC1) is with the combination of KD156 or KD9563 or other simulated sound integrated package.Its power end: anode (Vdd) connects dc power anode, negative terminal (Vss) connects negative pole (public ground), in order to the electric energy of the work of obtaining.It has oscillation resistance (R5), adjusts speed and height that (R5) can change simulated sound.Its output terminal (OUT) connects known power amplifier input end, so that amplify simulated sound.In its choosing sound trigger end (TRI) positive potential choosing sound trigger end (TRI1) is arranged, negative potential choosing sound trigger end (TRI2) is also arranged.Because (TRI1) is key player on a team's sound trigger end, so connect the control tube (VT1) of trigger control circuit thereon, just must there be a utmost point to connect positive source, among Fig. 1 emitter.If (VT1) uses NPN type triode instead, then need this pipe collector and emitter are changed over.But no matter (VT1) is PNP or NPN type triode, all known senser element of cross-over connection (CG1) and delay capacitor (C1) between its basic emitter-base bandgap grading, and base stage connects biasing resistance (R1).In like manner, because (TRI2) so another control tube (VT2) also must have a utmost point to connect power cathode, is emitter for negative choosing sound trigger end among Fig. 1.Similarly, also (VT2) can be used instead the positive-negative-positive triode.The control tube of which kind of polar form no matter, that end that connects power supply of the last biasing resistance (R2) that (VT2) connects, senser element (CG2) and delay capacitor (C2), the polarity of their power supplys that connects is opposite with corresponding element device in the last trigger control circuit.The anti-interference resistance of cross-over connection (R3) between negative choosing sound trigger end (TRI2) and the positive source, the anti-interference resistance of cross-over connection (R4) between key player on a team's sound trigger end (TRI1) and the power cathode, perhaps press shown in the dotted line among Fig. 1, cross-over connection anti-interference capacitor (C3) between (TRI2) and the power cathode, cross-over connection anti-interference capacitor (C4) between (TRI1) and the positive source.What deserves to be explained is: present embodiment be not can only monitor two kinds of abnormal conditions, early warning, warning, if need to more abnormal conditions, as long as increase respective sensor part, trigger control circuit, delay capacitor, anti-interference element and select the more integrated package of multiselect sound trigger end for use, and they are connected appropriate getting final product by above-mentioned.Known senser element should select for use those when abnormal conditions take place, and can export increase electric signal or impedance, also may be obvious that from Fig. 1.For example: fire or high light are reported to the police, and senser element (CG1) or (CG2) can select silicon photocell etc. for use; The fire accident is extinguished or weak fire is reported to the police, and (CG1) or (CG2) selects photoresistance or photistor, or the infrared electro transistor etc.; Superelevation (or low) temperature is reported to the police, and (CG1) or (CG2) choosing is the thermistor of (or negative) temperature-coefficient of electrical resistance just, or the bimetallic strip temperature sensitive switch etc.; Burglar alarm, (CG1) or (CG2) select infrared emission to receive pipe, or microswitch, or the broken string sensing etc.; Super wet (or doing) reports to the police, the wet sensitive semiconductor element of (CG1) or (CG2) choosing, or the ceramic-like wet sensitive device etc.In a word, senser element is corresponding with the abnormal information that is monitored early warning, and wants the coincidence circuit requirement.When abnormal conditions took place, the electric signal of output or impedance belonged to and to reduce to those, need add a triode phase inverter in addition and span between the control tube base penetrates again.This phase inverter is known, is omitted.If do not add phase inverter, then need senser element (CG1) or (CG2) and control tube (VT1) or (VT2) link position, reconfiguration biasing resistance (R1) or (R2) on this pipe locate, and save this resistance.

Embodiment 2. is with reference to Fig. 2, and this example is a most preferred embodiment.Compare with last example, circuit theory is identical with the goal of the invention and the effect that reach.Integrated package (IC2) is with HFC9562 or CW168 or KD9562 or KT1128 etc.Its whole choosing sound trigger ends (TRI3, TRI2, TRIX) are the negative potential triggering.The output terminal (OUT) of integrated package among Fig. 2 (IC2) connects the input end of power amplification circuit, and resistance (R5) is the oscillation resistance of integrated package (IC2).Resistance (R6), (R2) are respectively the last biasing resistance of control tube (triode) (VT3), (VT2), senser element (CG1), (CG2) be respectively with after delay capacitor (C6) (C2) is in parallel, more respectively cross-over connection between the basic emitter-base bandgap grading of (VT3), (VT2) with control in good time conducting of triode or shutoff.Anti-interference capacitor (C5), (C3) distinguish cross-over connection between choosing sound trigger end (TRI3), (TRI2) and power cathode (public ground), anti-tampering false triggering.Comparison diagram 1, Fig. 2 as seen, its sensing, control, triggering are all identical with sensing, control, the trigger circuit of negative choosing sound trigger end (TRI2) of integrated package (IC1) in the last example.Therefore be omitted.In order to obtain optimum efficiency, realize goal of the invention better, this example has been done preferably the components and parts in the circuit: (1) integrated package (IC2) uses the quiescent current representative value less than 10 μ A's.(2) control tube (VT3, VT2) with dc parameter be penetrating current less than 1 μ A, enlargement factor is greater than 100 times NPN type triode.(3) last biasing resistance (R6) or (R2) of control tube get 1---5.1M Ω.In addition, in order to obtain enough sounds, power amplifier has been set up a triode, considers and also will improve supply voltage and need the light indication, power supply input anode (Vdd) string some the light emitting diodes (Vd) of (IC2).Certainly the also available stabilivolt with the voltage stabilizing value of light emitting diode replaces.

Claims (3)

1, a kind of multi-function alarm, it mainly comprises housing, direct supply, loudspeaker, power amplification circuit, simulated sound circuit, and with the matched senser element of abnormal information, it is characterized in that:

1.1, the simulated sound circuit is by having at least two choosing sound trigger ends, the simulated sound integrated package of band oscillation resistance constitutes, the input end of its output termination power amplification circuit, cross-over connection anti-interference capacitor between negative choosing sound trigger end and the power cathode, cross-over connection anti-interference capacitor between key player on a team's sound trigger end and the positive source, the anti-interference resistance of cross-over connection between perhaps negative choosing sound trigger end and the positive source, the anti-interference resistance of cross-over connection between key player on a team's sound trigger end and the power cathode

1.2, also being provided with the triode is at least two trigger control circuit that control tube constitutes, the choosing sound trigger end of their output termination correspondence, and connect the control tube of negative choosing sound trigger end, select its emitter of NPN type to connect power cathode, or select its collector of positive-negative-positive to connect power cathode, and connect the control tube of key player on a team's sound trigger end, select its emitter of positive-negative-positive to connect positive source, or select its collector of NPN type to connect positive source, the base stage of respectively making the triode of control tube is connected to biasing resistance, and cross-over connection has senser element and delay capacitor between the basic emitter-base bandgap grading.

2, multi-function alarm according to claim 1, it is characterized in that: simulated sound integrated package (IC2) uses the quiescent current representative value less than 10 μ A's, and its direct supply inlet wire anode (Vdd) string some light emitting diodes (Vd) or stabilivolt, making the triode (VT2) of control tube or the dc parameter of (VT3) is that penetrating current is less than 1 μ A, enlargement factor is greater than 100 times NPN type triode, and biasing resistance on its base stage (R2) or (R6) resistance are 1---5.1M Ω.

3, multi-function alarm according to claim 1, it is characterized in that: the link position of senser element (CG1) or (CG2) and control tube (VT1) or (VT2) or (VT3), the last biasing resistance (R1) or (R2) or (R6) that change into each pipe locate, and cancel this resistance.

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