SU601728A2 - Warning device - Google Patents

Description

The drawing shows an iriac and a schematic diagram of the pre - signaling device.

It contains the following parallel circuits: from the sensor / Signal | Mpa 2 and the capacitor 3, which has been shaded by a resistor 4, in series — with which DNO.D 5, the acoustic sysynylator 6, the reset signal switch 7, the button 8 and the node detection of a malfunction of the signal lamp, consisting of diode | B 9, 10, signal lamp 11, memory 11, and capacitor 13.

In each target device introduced a key element made on the thyristor 14, the diode 15, and the resistor 16, and the relay 17.

The device also contains an additional switch 18.

When the sensors are closed, the corresponding signal lamp 2 and a relay 17 are connected in series with it. Impulse: of positive polarity goes through the corresponding capacitor 13 to the control electrode of the main thyristor 19. The transistor opens and connects the buzzer 6. To the negative pole of the source nutrition At the same time, the switching contact 20 of the relay 17 interrupts the power supply of the thyristor 14 across the alddu.

To REMOVE a beep, you must press the reset button of the beeper.

When a filament is broken, any lamp 2 of the relay / 7 is de-energized, power is supplied to the thyristor anode 14 through the closed contact 20, and the thyristor 14 starts to flow through the thyristor i4 directing electrode 14. A pulse of positive polarity is applied through capacitor 13 and diode 10 to thyristor control electrode 19, opens it, and the acoustic signaling device 6 turns on. In this case, the signal lamp 11 is also turned on, signaling the break of the filament of one of the signal lamps. chains. When the sensor is open / the current flows mainly through the circuit: Plus power supply source, switch 18, locked contact 20 relay 17, ip63 "CTOp 16, diode 15, relay 17, signal

lamp 2 and power source iminus, since the resistance of the control electrode (cathode) of the thyristor 14 is much greater than the resistance of the relay 17. When the filament of the signal lamp 2 is broken, all the current flows through the control electrode of the thyristor 14 and opens it. In this case, the buzzer 6 and the signaling lamp I are turned on, signaling: I am about the malfunction of some kind of signal lamp 2. To detect a malfunctioning light bulb, turn on the control knob 8.

Upon the correction of a malfunction of the signal lamp, switching on the switch 18 stops the power supply of the fast-firing tors. When the switch 18 is ON, the device is again ready for operation.

Invention Formula

Signaling device according to avtovid.461432, characterized in that, in order to improve the reliability of the device, a node for detecting a malfunction of the signal lamp, an additional switch, and the number of relay circuits - and key elements, each of which contains a thyristor, are inserted into it A diode of which is connected via a diode to one output of a relay P with a connecting point of a capacitor of the sensor of the corresponding circuit, and a resistor is connected parallel to the anad-to-control transition of the thyristor; another relay output. connected to the signal lamp of the corresponding circuit; The signal lamp detection unit is located in the external parallel circuit (successively connected diode and signal lamp, the connection point of which is connected to the thyristor cathode of each of the key elements and through a series-connected resistor, Parallel to which a capacitor is connected, and diode - to the control electrode of the main thyristor; a. the thyristor's one of each key element is connected to the connection point of the sensors through the closing contact the switch is with the positive pole of the power supply.