Sensor for current detection based on new-energy vehicle inverter

Abstract

The invention discloses a sensor for current detection based on a new-energy vehicle inverter. The sensor comprises a sensor shell, a current detection circuit arranged on the sensor shell and an amplification circuit electrically connected with the current detection circuit. Two positioning regulators are symmetrically installed at the bottom of the sensor shell, each positioning regulator comprises an installing strip annular positioning frame, four circumferentially-distributed positioning blocks are connected to the interior of each annular positioning frame, a positioning spring is connected among the positioning blocks and the inner wall of the side peripheral face of the annular positioning frame, a thread boosting pipe is in threaded connection with each annular positioning frame,the thread boosting pipe penetrates through the side face of the annular positioning frame and is in sliding contact with the positioning block, and a rotating ring is fixedly installed at the end, away from the positioning block, of the thread boosting pipe. The sensor is reasonable in structural design, an inversion power-on wire to be detected can be fixed to the center of a detection magneticcore, the current detection accuracy of an inversion circuit is improved, and damage to a circuit component caused by mistaken detection is avoided.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a sensor for detecting current in an inverter based on 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 and new vehicle power devices), and the comprehensive vehicle power control and advanced technology in driving, the formation of advanced technical principles, with Automobiles with new technology and new structure. [0003] New energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, and other new energy vehicles. A pure electric vehicle is a vehicle that uses a single battery as the energy storage power source. It uses the battery as the energy storage power source, and supplies electric energy to the motor through the battery to drive the...

AI Technical Summary

Problems solved by technology

In the prior art, when the sensor used to detect the current of the new energy vehicle inverter detects the current in the inverter circuit, the inverter energized wire cannot be fixed at the center of the detection magnetic core, and the same inverter current, the magnetic field line passes through The number of magnetic cores is different, resulting in a certain error in the current. When the error is large, it is easy to cause damage to the circuit components and there are certain defects.

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