Key Parameters And Rated Voltage Of New Energy Vehicle Fuses
May 17, 2022
The new energy vehicle fuse is a very important component in the high-voltage power distribution of new energy vehicles. In the process of use, it is mainly responsible for isolating and eliminating short-circuit faults in the high-voltage circuit of electric vehicles. The basic characteristics of new energy vehicle fuses and The two aspects of the design concept are effectively analyzed, and the selection of appropriate EV fuses for OEMs, battery packs and motor electronic control manufacturers is broadened.
In new energy vehicles, which effectively include hybrid and pure electric vehicles, their circuit protection components or fuses will be more important than ever in operation, low-voltage fuses and vehicle-regulated electrical The crossover application of fuses presents more challenging requirements.
The working voltage of new energy vehicle fuses is generally above 370V, and the bus reaches above 576V, which is much higher than the 12V/24V of traditional automotive electrical components when used. Such a high working platform voltage requires EV/HEV fuses to have both the high breaking capacity of low-voltage fuses and the high reliability of automotive fuses. The following article will analyze the fuses for new energy vehicles and explore their design concepts and technology development trends.
Key parameters of new energy vehicle fuses
Compared with other circuit protection components such as its PTC and circuit breakers, the new energy vehicle fuse can be said to be a relatively simple component. For low-voltage fuses in use, they only contain melt and insulation. Pipe body, energizing terminals and quartz sand for arc extinguishing. It is precisely because of its simple structure that the fuse can achieve both high reliability and low cost.
Rated voltage of new energy vehicle fuse
The working platform voltage of new energy electric vehicles is relatively high. The working voltage of passenger cars is generally above 370V, and the bus will reach above 576V. The rated voltages of the corresponding fuses are required to be 500V and 700V respectively.
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