An ignition coil small voltage detector for production

Abstract

The invention relates to a production ignition coil small voltage detector. The production ignition coil small voltage detector is characterized in that a detecting circuit is composed of a 5-volt switching power supply, a control signal unit, an ignition module, an attenuator and an oscilloscope, wherein the control signal unit is composed of a 50-Hz pulse signal generator and a duty ratio regulator and can generate pulse signals with a frequency of 50 Hz, a pulse width of 1 ms and an amplitude of 5 V; the 5-volt switching power supply and the 50-Hz pulse signal generator are connected with a 220-volt AC (alternating current) power supply; the output end of the 50-Hz pulse signal generator is connected with the input end of the duty ratio regulator, the output end of the duty ratio regulator is connected with the input end of the ignition module, and the output end of the 5-volt switching power supply and the ignition signal output end of the ignition module are connected with the positive end and the negative end of the primary coil of an ignition coil to be detected respectively; the signal input end of the attenuator is connected with the high-voltage output end of the ignition coil to be detected, and the signal input end of the attenuator is connected with the oscilloscope; the switching power source, the 50-Hz pulse signal generator, the duty ratio regulator, the ignition module and the attenuator are respectively provided with a grounding end.

Description

technical field [0001] The invention relates to an ignition coil detection device in the automobile industry, in particular to a production ignition coil small voltage detector. Background technique [0002] With the development of science and technology and economy, the high quality, high efficiency and low cost of product processing are more pursued in the modern industrial production system. In the automobile manufacturing industry, there are also requirements to reduce scrap, improve quality and increase production efficiency in production. As the core component of the electronic control system of the car, the performance of the ignition coil plays an important role in the operation of the whole vehicle. Therefore, strict monitoring of its quality has become a problem that manufacturers have devoted themselves to solving. At present, in the ignition coil manufacturing enterprises, the ignition coil is tested through a professional test bench with complex structure and h...

AI Technical Summary

Problems solved by technology

However, when the ignition coil is in the high-voltage output working state before epoxy resin encapsulation, the insulation performance of the ignition coil cannot withstand, and it is easy to be damaged. Therefore, it has become a concern in the industry to explore a detection device that can detect under the small voltage condition that the ignition coil can withstand.

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