CN2129949Y

CN2129949Y - Micro acoustic-optic acute disease calling device

Info

Publication number: CN2129949Y
Application number: CN 92231753
Authority: CN
Inventors: 李金水
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-08-25
Filing date: 1992-08-25
Publication date: 1993-04-14
Anticipated expiration: 2002-08-25

Abstract

The utility model discloses a micro acoustic-optic acute disease calling device. A control circuit is supplied with power by direct-current power supply through a magnetic switch, which causes the control circuit to send out control signal to be input an audio oscillation circuit; the audio oscillation circuit outputs electrical signal, which causes a buzzer to send out sound and a luminous diode to flash. Because an integrated circuit and button cells are adopted, the volume of the utility model is caused to be miniaturization; the acoustic-optic acute disease calling signal can make other people notice in time. The utility model has the advantages of stable operating performance and convenient portability.

Description

Micro acoustic-optic acute disease calling device

The utility model relates to a kind of acute disease rescue beacon that sends the acousto-optic distress call.

The patient, particularly the elderly who suffers from the cerebrovascular, heart disease, acute abdomen etc. needs other people to help and rescues when carrying out urgency.Yet because though patient was clearheaded at that time when acute disease show effect, often lost the ability of calling for help, notice and rescue that as can not in time causing other people urgency is easily caused danger.Studied multiple acute disease call device at above-mentioned situation people, Chinese patent CN.97207076 is introduced is exactly wherein a kind of.This device has adopted flashless warning circuit and has triggered self-hold circuit, owing to adopt triode to amplify and 8 Ω loudspeakers, so power consumption is big, dynamic loudspeaker is too heavy in addition, and complete machine can't be microminiaturized, is not easy to carry.

The purpose of this utility model provides that a kind of volume is little, and power consumption is little, can in time cause the miniature acousto-optic acute disease rescue beacon that other people note during calling for help, to overcome the shortcoming of prior art.

For this reason, the utility model is taked following technical scheme: it is by direct supply E, magnetic switch 2, control circuit 3, audio oscillator circuit 4, acoustic-electric hummer 5, LED and shell 1, connect circuit, direct supply E makes it send control signal through magnetic switch 2 to control circuit 3 power supply and is input to audio oscillator circuit 4, and audio oscillator circuit 4 sent electric signal and made acoustic-electric hummer 5 sounding and make LED glittering this moment.

Above-mentioned magnetic switch 2 is made up of normally closed contact J and permanent magnet pieces M, and normally closed contact J is contained on the shell, and permanent magnet pieces M is fixed on the top cover of shell 1.Above-mentioned control circuit 3 is by controllable silicon SCR, R ₁Form SCR and R with trigger button AN ₁Link to each other, trigger button AN two ends are connected with the G utmost point with the A of SCR respectively.Integrated circuit chip IC7 pin is through the R of series connection in the above-mentioned audio oscillator circuit 4 ₂Be connected with its 5 pin with C, its 6 pin meets R ₂With the C connecting place.The R of direct supply E negative pole in the normally closed contact J of magnetic switch 2 connection control circuit 3 ₁, button AN is sent out in the anodal contact of E, and the controllable silicon SCR C utmost point connects IC 8 pin in the audio oscillator circuit 4 in the control circuit 3, and

IC

2,3 pin connect acoustic-electric hummer 5 two ends respectively, its 4 pin sending and receiving optical diode LED.

The utility model principle of work illustrates in conjunction with Fig. 3: by integrated circuit chip IC and C, R ₂The audio oscillator circuit of forming 4 is controlled by controllable silicon SCR, when patient happens suddenly acute disease, can with hand trigger button AN be pressed immediately, and the SCR conducting that is triggered is owing to pass through R ₁Electric current keep effect, even decontrol AN, SCR still keeps conducting state, and (the IC quiescent current is lower than SCR and keeps electric current, if cancellation R ₁, SCR cisco unity malfunction then), audio oscillator circuit 4 work promote piezoelectric buzzer 5 and send the double-tone chimes of doom, LED is glittering simultaneously.When cap and shell 1 coincide, the normally closed contact J adhesive in the magnetic switch 2, circuit turn-on, J disconnection when cap is opened, circuit is cut off, and the warning sound of call for help stops.

The utility model is selected large scale integrated circuit and button cell for use, can make volume microminiaturization, weight alleviates greatly, owing to changed the former integrated circuit standard mode of connection and the peripheral cell parameter can obviously increase audio frequency and intensity, in addition with the LED indication of glistening, so can in time come into the picture in case send the acousto-optic sound of call for help, adopt to have the control circuit 3 that triggers the self-preservation, can make stable and reliable working performance.

Fig. 1 is the utility model profile synoptic diagram.

6, clamp.

Fig. 2 is the utility model block scheme.

Fig. 3 is the utility model electrical schematic diagram.

IC adopts KD-9563, R ₁, R ₂Resistance is respectively 1.5K, 24K, and the electric capacity of C is 4700P.

Claims

1, a kind of miniature acousto-optic acute disease rescue beacon, it is characterized in that it being by direct supply E, magnetic switch 2, control circuit 3, audio oscillator circuit 4, acoustic-electric hummer 5, LED and shell 1, connect circuit, direct supply 1 makes it send control signal input audio oscillator circuit 4 through magnetic switch 2 to control circuit 3 power supply, and audio oscillator circuit 4 sent electric signal and made acoustic-electric hummer 5 sounding and make LED glittering this moment.

2, miniature acousto-optic acute disease rescue beacon according to claim 1 is characterized in that described magnetic switch 2 is made up of normally closed contact J and permanent magnet pieces M, and normally closed contact J is contained on the shell, and permanent magnet pieces M is fixed on the top cover of shell 1.

3, miniature acousto-optic acute disease rescue beacon according to claim 1 is characterized in that described control circuit 3 is by controllable silicon SCR, R ₁Form SCR and R with trigger button AN ₁Link to each other, trigger button AN two ends are connected with the G utmost point with the A of SCR respectively.

4, miniature acousto-optic acute disease rescue beacon according to claim 1 is characterized in that integrated circuit chip IC 7 pin are through the R of series connection in the described audio oscillator circuit 4 ₂Be connected with its 5 pin behind the C, its 6 pin meets R ₂With the C connecting place.

5, miniature acousto-optic acute disease rescue beacon according to claim 1 is characterized in that the R of direct supply E negative pole in the normally closed contact J of magnetic switch 2 connection control circuit 3 ₁, button AN is sent out in the anodal contact of E, and the controllable silicon SCR C utmost point connects IC 8 pin in the audio oscillator circuit 4 in the control circuit 3, and IC 2,3 pin connect acoustic-electric hummer 5 two ends respectively, its 4 pin sending and receiving optical diode LED.