CN87100366A

CN87100366A - Silicon rectification generator the do not disintegrate method of fault detect and the device of enforcement

Info

Publication number: CN87100366A
Application number: CN 87100366
Authority: CN
Inventors: 刘增良
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-01-24
Filing date: 1987-01-24
Publication date: 1987-07-29

Abstract

The invention belongs to silicon rectification generator fault detection technique field.It provides a kind of silicon rectification generator that with the ghyristor circuit is impression detects judging unit fault detection method that do not disintegrate.Pick-up unit according to this method design, it is characterized in that it is by the controllable silicon impression detection judging unit circuit (1) that is used for the detection signal analysis and judgement, tested generator output voltage signal can be imported the sampling and the detector switch circuit (2) of controllable silicon impression detection judging unit circuit, the thyristor gating circuit (3) of trigger pip is provided and the silicon rectification generator malfunction be given display alarm control circuit (4) composition of distinct demonstration, warning or FEEDBACK CONTROL with means such as demonstration, warning or automatic controls.

Description

Silicon rectification generator the do not disintegrate method of fault detect and the device of enforcement

The invention belongs to silicon rectification generator fault detection technique field.

At present, silicon rectification generator has become the main power-supply device of multiple vehicle and engineering machinery.When vehicle and engineering machinery work, it is being born is the effect of electric apparatus of whole vehicle power supply and accumulator boost charge.Along with development electrified, robotization, the consumer and the automatic control equipment of various vehicles and engineering machinery sharply increase, thereby the performance condition quality of silicon rectification generator is very big to the working condition and the performance impact of vehicle and engineering machinery.

The detection technique of silicon rectification generator, except the dismounting of disintegrating detects, existing puzzled body detecting method mainly contains two kinds: the one, with the resistance value between the multimeter ohms range measurement silicon rectification generator external cabling post, judge with comparative approach whether silicon rectification generator exists fault; Another kind is to observe the silicon rectification generator output voltage waveforms with oscillograph, also with method failure judgement state relatively.

The problem that existing silicon rectification generator is not understood the body detecting method existence is: the multimeter detection method can only detect under the inoperative situation, and it is very big to the measured resistance value dependence, and determine effect is poor.Because the measured resistance in each position of silicon rectification generator mostly is non-linear, actual measurement resistance value size is often selected relevant with multimeter model and ohms range multiplying power, adding silicon rectification generator exists some fault when (opening circuit as single commutation diode), the measured resistance value changes little, thereby, after the silicon rectification generator fault, multimeter actual measurement resistance value often still within the normal resistance values scope, can not get correct judgement; Though the oscillograph detection method can be observed the silicon rectification generator output voltage waveforms, can comparing property analysis and judgement, oscillograph costs an arm and a leg, and the measuring condition harshness generally can only be carried out in the laboratory, can not carry out actual detected in the open air with on the vehicle.

In order under the situation of the normal operation of silicon rectification generator, to judge rapidly, exactly whether generator exists fault.The invention provides a kind of new silicon rectification generator that with the ghyristor circuit is impression detects judging unit do not disintegrate fault detection method and device for carrying out said, it has the method novelty, easy to use, characteristics such as cheap, can be under vehicle and engineering machinery normal operation, to silicon rectification generator carry out rapidly, accurately, malfunction diagnosis reliably.

The silicon rectification generator provided by the invention fault detection method that do not disintegrate, utilize the feature of output voltage waveforms distortion after the silicon rectification generator fault, with the ghyristor circuit is that impression detects judging unit, can be under the situation of silicon rectification generator operation, rapidly, accurately, reliably the generator failure state is detected judgement.According to the silicon rectification generator of this method design failure detector circuit that do not disintegrate, its characteristics are that it is by the controllable silicon impression detection judging unit circuit (1) that is used for the detection signal analysis and judgement, tested generator output voltage signal can be imported the sampling and the detector switch circuit (2) of controllable silicon impression detection judging unit circuit, the thyristor gating circuit (3) of trigger pip is provided and the silicon rectification generator malfunction be given display alarm control circuit (4) composition of distinct demonstration, warning or FEEDBACK CONTROL with means such as demonstration, warning or automatic controls.

Fig. 1 is the silicon rectification generator of the implementing the method for the invention failure detector circuit block scheme that do not disintegrate.

Fig. 2 is a kind of the method for the invention, concrete, practical silicon rectification generator fault detector circuit that do not disintegrate of implementing.

According to silicon rectification generator provided by the invention do not disintegrate fault detection method and basic circuit, can design the multiple silicon rectification generator failure detector that do not disintegrate. Can transform existing equipment, realize product renewal, can make separately the silicon rectification generator tracer that do not disintegrate, as basic testing tool, also can be combined with the lighting circuit of vehicle and engineering machinery and make the compatible detection lighting circuit of detection on locomotive illumination etc.

Claims

1, with the ghyristor circuit is silicon rectification generator that impression the detects judging unit fault detection method that do not disintegrate, be characterized in: utilizing the feature of output voltage waveforms distortion after the silicon rectification generator fault, is that impression detects the malfunction that judging unit detects silicon rectification generator with the ghyristor circuit.

2, implement the failure detector circuit of the described method of claim 1, be characterized in: this failure detector circuit detects judging unit circuit (1) by the controllable silicon impression that is used for the detection signal analysis and judgement, the impression of tested silicon rectification generator output voltage signal input controllable silicon can be detected the sampling and the detector switch circuit (2) of judging unit circuit, provide the thyristor gating circuit (3) of trigger pip and with demonstration, means such as warning or automatic control are given distinct demonstration to the silicon rectification generator malfunction, the display alarm control circuit (4) of warning or FEEDBACK CONTROL is formed.

3, implement according to the described failure detector in one of claim 1 and 2.