CN2232028Y

CN2232028Y - AC flasher

Info

Publication number: CN2232028Y
Application number: CN 95202887
Authority: CN
Inventors: 田景春
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-02-20
Filing date: 1995-02-20
Publication date: 1996-07-31
Anticipated expiration: 2005-02-20

Abstract

The utility model provides an AC flasher for the steering circuit of road surface transport machinery of AC permanent magnet generator power supply. The alternating current flasher is characterized in that a PNP type triode controls a bidirectional thyristor with a control electrode connected to a collector electrode of the triode, two anodes of the bidirectional thyristor are leading-out ends of the flasher, a base electrode of the triode is connected to a connection point of a first loop capacitor 7 and a resistor 8, an emitting electrode of the triode is connected to a connection point of a second loop resistor 5 and a capacitor 9, and charging and discharging of the capacitor 7 and the capacitor 9 control the conduction and the cut-off of the triode, so that the conduction and the cut-off of the bidirectional thyristor are controlled, and the working of the flasher is.

Description

Exchange Der Blink und Abblendschalter

The utility model relates to the Der Blink und Abblendschalter that a kind of road surface Transport Machinery turns to.

Road surface Transport Machinery turning flash device, having of using at present is multiple, and as electrothermic type, condenser, electronic type etc., these Der Blink und Abblendschalters all are applied to the system of direct-flow storage battery power supply, are characterized in that operating voltage is a direct current and constant.For the AC system of permanent magnet alternator power supply, above-mentioned Der Blink und Abblendschalter then can not use, and permanent magnet alternator electric power system characteristics are: electric current is an alternation, and voltage changes with the Transport Machinery running velocity, and its change of voltage scope is the 7-16 volt.

The purpose of this utility model provides a kind of interchange Der Blink und Abblendschalter of suitable permanent magnet alternator power supply, insert the turn sign circuit for lamp exchanging Der Blink und Abblendschalter, connect pole changer, generator voltage is in 7-16 volt scope, the Der Blink und Abblendschalter normal operation, the turn sign flick of lamp.

The utility model is achieved in that the collecting electrode of a positive-negative-positive aerotron and the control utmost point of triac join, the base stage of aerotron is connected in first loop, the emitter of aerotron is connected in second loop, by first, electric capacity fills in second loop, discharge, the base potential and the emitter current potential of control aerotron, make it conducting and end, control triac conducting with end, two anodes of triac are the Der Blink und Abblendschalter leading-out terminal, when Der Blink und Abblendschalter is connected to the turn sign circuit for lamp, along with the conducting of triac with end, turn signal lamp is glittering.

Realization of the present utility model can further describe with following accompanying drawing.

Fig. 1 is the scheme circuit of utility model,

Fig. 2 is the fundamental diagram of utility model,

With reference to Fig. 1, the control utmost point of the collecting electrode of a positive-negative-positive aerotron and a triac 11, direct connection or connect by a resistance, aerotron 6 also can adopt composite pipe structure, for example positive-negative-positive and NPN type aerotron composite structure, this moment, NPN type transistor collector linked to each other with positive source 4, all the other are pressed composite pipe structure and connect, transistor base is connected on the point of connection of first tank capacitance 7 and resistance 8, first tank capacitance 7 one is terminated on the positive source 4, resistance 8 one is terminated on the power cathode 10, transistor emitter is connected on the point of connection of second loop resistance 5 and electric capacity 9, second loop resistance 5 one is terminated on the positive source 4, electric capacity 9 one is terminated on the power cathode 10, stabilivolt 3, filter capacitor 2 inserts between positive source 4 and the power cathode 10, seals in rectifier diode 1 between Der Blink und Abblendschalter exit 12 and the positive source 4, two anodes of triac are connected to respectively between exit 12 and the power cathode 10, another exit of power cathode 10 double as Der Blink und Abblendschalters.Be two exits that anode is a Der Blink und Abblendschalter of triac.

With reference to Fig. 2, further specify the realization of principle of the present utility model and purpose:

After pole changer 14 was connected, alternating current generator 13 ends were timing, and electric current is flowed out by alternating current generator 13 ends, through Der Blink und Abblendschalter exit 12, rectifier diode 1 rectification, filter capacitor 2 filtering, stabilivolt 3 voltage stabilizings, the formation galvanic current is pressed, this voltage is through first loop, and second loop is respectively to electric capacity 7, and electric capacity 9 charges, electric capacity is equivalent to short circuit during the charging beginning, A point current potential is higher than B point current potential among the figure, and promptly the base potential of positive-negative-positive aerotron 6 is higher than the emitter current potential, and aerotron 6 ends, at this moment, though have electric current to flow through 16 ends that turn signal lamp 15 is got back to electrical generator, electric current is very little, deficiency is so that signal lamp 15 is luminous, along with electric capacity 7 and electric capacity 9 electrically-charged carrying out, A point current potential reduces gradually, and B point current potential raises gradually, when B point current potential is higher than 0.6 volt of A point current potential, aerotron 6 conductings, triac is by the conducting of transistor collector current trigger, and electric current is flowed out by alternating current generator, through triac, turn signal lamp 15, pole changer 14 is got back to alternating current generator.The triac conducting resistance is very little, electrical generator is no longer powered to aerotron 6 through rectifier diode, electric capacity 7 is through resistance 5, and the aerotron e-b utmost point discharges, and electric capacity 9 is through the aerotron e-c utmost point, the discharge of the SCR control utmost point, keep the triac conducting, be lower than A point current potential when capacitive strike makes B point current potential, aerotron 6 ends, triac 11 ends, and turn signal lamp 15 extinguishes.It is glittering to repeat said process turn signal lamp 15, when alternating current generator 13 ends are that rectifier diode 1 is closed when bearing, because the energy storage effect aerotron 6 of filter capacitor 2 works on, because the existence of stabilivolt 3, when alternator voltage changes between the 7-16 volt, aerotron 6 operating voltages are constant, so the Der Blink und Abblendschalter frequency of operation is constant.

Exchange the application of Der Blink und Abblendschalter, make the road surface Transport Machinery of ac power supply system,, obvious, failure-free flash of light indicator signal has been arranged when turning to as compact tractor, agricultural three-wheel transporter, avoided having increased traveling security because of turning to the unclear accident that causes of indication.

Claims

1, a kind of interchange flasher circuit, the collecting electrode that it is characterized in that a positive-negative-positive aerotron 6 is connected with the control utmost point of a triac 11, transistor base is connected on the point of connection of first tank capacitance 7 and resistance 8, first tank capacitance 7 is terminated on the positive source 4, resistance 8 is terminated on the power cathode 10, transistor emitter is connected on the contact of second loop resistance 5 and electric capacity 9, second loop resistance 5 is terminated on the positive source 4, electric capacity 9 is terminated on the power cathode 10, stabilivolt 3, filter capacitor 2 is connected between positive source 4 and the power cathode 10, seal in rectifier diode 1 between Der Blink und Abblendschalter exit 12 and the positive source 4, triac is received between exit 12 and the power cathode 10, another exit of power cathode 10 double as Der Blink und Abblendschalters.

2, interchange Der Blink und Abblendschalter as claimed in claim 1 is characterized in that two exits that anode is a Der Blink und Abblendschalter of triac, and control extremely directly or be connected to by resistance on the collecting electrode of positive-negative-positive aerotron or compositing amplification tube.

3, interchange Der Blink und Abblendschalter as claimed in claim 1, it is characterized in that the positive-negative-positive transistor base is connected on the point of connection of electric capacity 7 and resistance 8, the emitter of aerotron is connected on the point of connection of resistance 5 and electric capacity 9, discharges and recharges the conducting of control aerotron and ends by electric capacity 7 and electric capacity 9.

4, interchange Der Blink und Abblendschalter as claimed in claim 1 is characterized in that between positive source 4 and the power cathode 10, and connects a zener diode 3.

5, as claim 2,3 described interchange Der Blink und Abblendschalters, it is characterized in that the multiple unit tube of aerotron 6 for positive-negative-positive aerotron or PNP and NPN type aerotron composition, the current collection level of NPN type aerotron is connected on the positive source 4, and all the other each utmost points are pressed composite pipe structure and are connected.