New energy automobile electric leakage detection device

Abstract

The invention discloses a new energy automobile electric leakage detection device which comprises a battery, first to fourth resistors, a first capacitor, a second capacitor, a field effect transistor, a first triode, a second triode, a potentiometer, an optical coupler, a time base integrated chip, a light emitting diode, a switch and a loudspeaker. A grid electrode of a field effect transistor serves as a probe; when the field-effect tube senses the current, the field-effect tube is conducted; the first triode is electrified and conducted; a light-emitting tube in the optical coupler is switched on to be lightened; a photosensitive tube in the optical coupler is conducted; the time base integrated chip sends a control signal to the second triode after receiving the trigger signal, so that the second triode is conducted; according to the invention, the inductive probe is formed through the field effect transistor, wherein the electrified position is determined through induction, direct contact is not needed during detection, whether the electrified position is electrified or not can be judged only by getting close to the electrified body; in addition, the detection sensitivity isadjustable, the inspection result is reminded through sound and light, and the maintenance work efficiency is improved.

Description

technical field [0001] The invention relates to an auxiliary tool for a new energy vehicle, in particular to a leakage detection device for a new energy vehicle. Background technique [0002] New energy vehicles refer to the use of unconventional vehicle fuels as power sources (or the use of conventional vehicle fuels, the use of new vehicle power devices), integrated vehicle power control and advanced technology in driving, the formation of advanced technical principles, with Automobiles with new technology and new structure. New energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc. In the existing technology, for electric new energy vehicles, if leakage occurs, it will cause immeasurable potential safety hazards. However, there are many lines in the car, and it is more cumbersome to check, because the lines are all insulating and protective, and it is difficult to pass...

AI Technical Summary

Problems solved by technology

In the existing technology, for electric new energy vehicles, if leakage occurs, it will cause immeasurable potential safety hazards. However, there are many lines in the car, and it is more cumbersome to check, because the lines are all insulating and protective, and it is difficult to pass through. The conventional electric pen determines whether it is charged or not charged, therefore, a device that is convenient for inspection is needed

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