New energy vehicles have become the development trend of the automotive industry, and the design of new energy electric vehicles is becoming more and more safe and reliable. At present, the high-voltage interlock circuit design of electric vehicles has brought new energy vehicles to a climax. We know that high-voltage interlock refers to the use of low-voltage signals to check all the shunts connected to the high-voltage bus on the electric vehicle, It includes the electrical connection integrity of the entire battery system, wires, connectors, DCDC, motor controller, high voltage box and protective cover and other system circuits. The adoption, design and development of precision shunts in the entire system play a very important role in the design of high-voltage interlocking circuits for electric vehicles;
The power battery pack is used as the power source in the high-voltage circuit, and a power supply for current detection is also required in the low-voltage circuit, so that the low-voltage signal can be transmitted along the closed low-voltage circuit. Once the low-voltage signal is interrupted, it means that a certain high-voltage connector is loose or falls off. The shunt plays a very important role in this process. Accurate feedback data in the passing current requires very high precision of the shunt. If the feedback current is not accurate enough, it will have a great impact on the entire system design;
KINMACHI high-precision shunts can solve these problems very well. KINMACHI shunts in new energy vehicle systems have high precision and can accurately feed back current information, providing a strong guarantee for the construction of new energy vehicle systems.
Case
The raw material of the shunt is usually welded by two kinds of raw materials by electron beam welding.
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