7165-0851 Automotive Rubber Parts Seal Connectors Terminal Cable Automotive Waterproof Plug

2. Cable structure

High voltage cables can be divided into single core cables and multi-core cables in terms of type. The cross-section of high voltage cables is circular, and the sheath color is orange. A multi-core cable is composed of multiple single core wires, which must simultaneously meet the relevant technical parameters of the single core cable. If there is any signal transmission in the multi-core cable, please use separate shielding to ensure that the signal is not lost. The wire mainly adopts multi-core soft copper stranded wire to meet the technical requirements of internal resistance and soft bending of the wire. The insulation layer must be resistant to high and low temperatures, flame retardancy, and is mostly a composite structure. For EMC protection, high-voltage cables with shielding layers are braided with bare copper or copper plated wires on the inner sheath layer, with a weaving density of ≥ 90%.

High voltage connector selection 1. High voltage connector

In terms of electrical performance: it is necessary to consider relevant electrical performance parameters such as rated working voltage, rated working current, insulation resistance, withstand voltage level, shielding and interlocking.

In terms of environmental performance: it is necessary to consider the requirements of working temperature, environmental temperature, salt spray level, flame retardant level, solution resistant reagents, and prohibited substances. There may be other requirements based on different design requirements. Mechanical performance; Test the vibration resistance and corresponding mechanical life according to different working conditions.

In terms of safety performance: High voltage interlocking is adopted, which is divided into built-in and external types. Due to the compact layout and small volume of the built-in type, electric vehicles all use built-in type and detect the high-voltage interlocking through controllers such as VMS or BMS. It is required that after the high-voltage connector is separated, the live part can be reduced to 60Vd. c and 30Va. c within 1 second. To ensure personal safety.

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