CN2186973Y

CN2186973Y - Automotive anti-burning electronic voltage regulator

Info

Publication number: CN2186973Y
Application number: CN 93226670
Authority: CN
Inventors: 李春生
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-17
Filing date: 1993-12-04
Publication date: 1995-01-04
Anticipated expiration: 2003-12-04

Abstract

The utility model discloses an automotive anti-burning electronic voltage regulator. On the basis of the existing voltage regulating circuit, the utility model adds an overvoltage protection circuit, an overcurrent protection circuit, a polarity protection circuit and current input and output signal circuits. When the overvoltage is generated, the overvoltage protection circuit outputs signals to ensure that a transistor for controlling excitation coils is stopped. Simultaneously, an overvoltage signal lamp lights. When the overcurrent is generated, the overcurrent circuit outputs signals to ensure that the transistor for controlling the excitation coils is stopped likewise. Simultaneously, an overcurrent signal lamp lights. Polarity protection diodes are also arranged at the input end and the output end of the voltage regulator.

Description

Automotive anti-burning electronic voltage regulator

The utility model relates to a kind of generator voltage automatic regulating equipment, and specifically describing is that a kind of automobile is with preventing burning electronic voltage controller.

The present electronic voltage controller that uses on the automobile, generally by adjustable voltage division circuit, pulse regulation signal generating circuit, adjusted in concert not gate, continuing is amplified to that terminal is regulated output circuit and self-induction effect protective circuit is formed.The automatic protection and the false wiring protection of overcurrent-overvoltage are not considered in this design of product at present, are directed at the early stage damage of product easily, and useful life is short.

The purpose of this utility model be to provide a kind of have that overcurrent-overvoltage is protected automatically and automobile with signal display circuit with the anti-electronic voltage controller that burns.

The utility model is achieved in that it is made up of shell, indicator light, outer terminal and circuit.Regulating circuit partly comprises, positive electricity is through generator magnetizing coil L, one road flow through relay J and triode T3 returns negative, positive electricity connects the base stage of collector electrode, triode T2 of triode T1 and resistance R 9 times respectively through divider resistance R8 negative, positive electricity is after resistance R 1, resistance R 2 dividing potential drops, one the tunnel returns negatively through R3, the one tunnel is negative through capacitor C 1 time, the one tunnel behind voltage-stabiliser tube D3 respectively connecting resistance R4 return negative and connect triode T1 base stage and return negative.The utility model is characterised in that it also has: an overvoltage crowbar, a current foldback circuit, a polar protective circuit, a stabilized voltage power supply input signal circuit.A voltage stabilizing work output signal circuit.

Overvoltage crowbar is such composition, and it is negative that positive electricity connects voltage-stabiliser tube D7 and resistance R 16 times respectively through resistance R 14, R15.The voltage-stabiliser tube D7 other end meets the negative and connecting resistance R13 of capacitor C 2 times respectively to triode T5 base stage.Positive electricity connects triode T5 base stage through divider resistance R12.Triode T5 emission collection connects positive electricity, collector electrode is born for 11 times through resistance R.The base stage of triode T4 connects the collector electrode of triode T5 through resistance R 10, and triode T4 collector electrode connects the base stage of triode T2 through overvoltage guard signal lamp D6.The emitter of triode T4 connects negative.

Current foldback circuit is such composition, and positive electricity meets the negative and connecting resistance R21 of capacitor C 3 times respectively to triode T8 base stage through the normal opened contact of relay J-1.The emitter of triode T8 connects negative.Positive electricity connects the collector electrode of triode T8 and the connecting resistance R20 base stage to triode T7 respectively through resistance R 19.The emitter of triode T7 connects positive electricity.The collector electrode of triode T7 through overcurrent signal lamp D8 respectively connecting resistance R18 return negative and connecting resistance R17 base stage to triode T6.The emitter of triode T6 connects negative.The base stage of the collector connecting transistor T2 of triode T6.

Polar protective circuit is such composition, and the input forward meets a polarity protection diode D11, and output oppositely meets a polarity protection diode D1.

Stabilized voltage power supply input signal circuit is such composition, and positive electricity connects voltage-stabiliser tube D10 and inputted signal light D9 composition parallel circuits through resistance R 22.

Voltage stabilizing work output signal circuit is such composition, and positive electricity returns negative through the flow through parallel circuits of alternator output signal lamp D4 and voltage-stabiliser tube D5 of resistance R 5.

Good effect of the present utility model is: owing to designed the overcurrent-overvoltage automatic protection circuit in the circuit, the performance of voltage regulator improves a lot, and not only increases the service life, and has solved the disadvantage that electronic voltage controller easily burns simultaneously.Display circuit is set in the circuit, is used for illustrative circuitry break down reason and position.

Below in conjunction with accompanying drawing the utility model operation principle is elaborated.

Fig. 1 is the utility model basic circuit diagram;

Fig. 2 is the utility model schematic appearance;

As shown in Figure 1.The utility model voltage-regulation principle is such, when generator voltage is higher than normal value, and voltage stabilizing didoe D3 pulse shaping, triode T1 conducting, a point current potential reduces, triode T2, T3 ends, and the electric current that flows through generator magnetizing coil L reduces, and generator voltage is descended.When generator voltage was lower than normal value, triode T1 ended, and the current potential of a raises, triode T2, T3 conducting, and the electrorheological that flows through generator magnetizing coil L is big, and generator voltage rises.

The overvoltage protection principle is such, and when the generator superpressure, voltage stabilizing didoe D7 pulse shaping makes triode T5 conducting, gives capacitor C 2 chargings simultaneously.Make also conducting of triode T4 after the triode T5 conducting, the current potential that a is ordered reduces, and triode T2, T3 end, and generator voltage descends.Capacitor C 2 is set in the circuit, plays delay triode T2, T3 ends and conducting.When generator generation superpressure, D6 is bright for the overvoltage clearing lamp, and when generator voltage recovers just often, triode T5, T4 end, the rising of a point current potential, triode T3, T2 conducting.

The overcurrent protection principle is such; make and flow through generator magnetizing coil L electric current and increase when certain reason takes place, or directly insert the F end when positive electricity, make when flowing through the relay J electric current and reaching certain value; relay J work; normal opened contact J-1 is connected, capacitor C 3 chargings, triode T8, T7 ', T6 conducting simultaneously; a point current potential reduces; triode T3, T2 are ended, cut off exciting curent, prevent that big electric current from burning out triode T3, T2.When overcurrent took place, D8 was bright for the over-current signal lamp.Capacitor C 3 is set in the circuit, works to postpone triode T8 work.In order to prevent that incorrect polarity from inserting adjuster, the input of adjuster circuit and output are connected to polarity protection diode D11 and D1.In order to show that adjuster has inserted the networking, stabilized voltage power supply input signal circuit 4 is set in the circuit, D9 is bright when signal lamp, shows that adjuster has inserted the networking.In order to show that adjuster has entered normal operating conditions, voltage stabilizing work output signal circuit 5 is set in the circuit, D4 is bright when signal lamp, and the demonstration adjuster is exported.

Claims

1, a kind of automobile is with preventing burning electronic voltage controller, form by shell, indicator light, binding post and circuit, regulating circuit (1) comprises, positive electricity is through generator magnetizing coil L, one the road flows through returns behind relay J and the triode T3 negatively, and positive electricity is through divider resistance R8, and it is negative to connect the base stage of collector electrode, triode T2 of triode T1 and resistance R 9 times respectively, positive electricity through resistance R 1, R2 dividing potential drop, connect the voltage-stabiliser tube D3 triode T1 base stage of flowing through and return negatively, the utility model is characterised in that it also has:

A. an overvoltage crowbar (2), it is negative that positive electricity connects voltage-stabiliser tube D7 and resistance R 16 times respectively through resistance R 14, R15, the voltage-stabiliser tube D7 other end meets the negative and connecting resistance R13 of capacitor C 2 times respectively to triode T5 base stage, positive electricity connects triode T5 base stage through divider resistance R12, triode T5 emission collection connects positive electricity, triode T5 collector electrode is born for 11 times through resistance R, the base stage of triode T4 connects triode T5 collector electrode through resistance R 10, triode T4 collector electrode connects the base stage of triode T2 through overvoltage guard signal lamp D6, and the emitter of triode T4 connects negative;

B. a current foldback circuit (3); positive electricity through the J-1 of relay normal opened contact connect respectively electric capacity c3 return negative and connecting resistance R21 to triode T8 base stage; triode T8 emitter connects negative; positive electricity connects the collector electrode of triode T8 and the connecting resistance R20 base stage to triode T7 respectively through resistance R 19; triode T7 emitter connects positive electricity; the collector electrode of triode T7 through overcurrent signal lamp D8 respectively connecting resistance R18 return negative and connecting resistance R17 base stage to triode T6; triode T6 emitter connects negative, the base stage of the collector connecting transistor T2 of triode T6.

2, automobile according to claim 1 burns electronic voltage controller with anti-, and it is characterized in that: input and output are connected to polarity protection diode D11, D1.

3, automobile according to claim 1 burns electronic voltage controller with anti-, it is characterized in that: also be provided with a stabilized voltage power supply input signal circuit (4), positive electricity meets voltage-stabiliser tube D10 and inputted signal light D9 parallel circuits returns negative through resistance R 22.

4, automobile according to claim 1 burns electronic voltage controller with anti-, it is characterized in that: also be provided with a voltage stabilizing work output signal circuit (5), positive electricity returns negative through the flow through parallel circuits of alternator output signal lamp D4 and voltage-stabiliser tube D5 of resistance R 5.