Built-in junction box

metalplasticDC

The battery junction box (BJB) establishes the connection and also the resolution of the connection between the vehicle's high-voltage system and the AC/DC charging components. The BJB is usually located inside the battery, but in some cases it can also be located outside the vehicle, in which case it is simply referred to as the junction box (BJ). The main tasks of the battery junction box include changing, securing and distributing the high-voltage power from the power distribution units to the high-voltage battery. The housing of the BJB is usually made of plastic or metal. The main components include busbars, cables, fuses, screws and relays. The operating voltage is up to 400/800V and the operating currents are up to 500 amps. Intelligent BJBs also have integrated controllers with a LIN/CAN interface. Thanks to our many years of experience with power distribution boxes, we at LEONI are a strong partner for our customers, from the initial conceptual design through to series production.