What are the two main components of the high-voltage wiring harness for new energy vehicles?

The high-voltage wiring harness for new energy vehicles mainly consists of connectors, terminals, wires, covers and other components. The high-voltage wiring harness for new energy vehicles can be configured inside and outside the electric vehicle according to different voltage levels. It is mainly used for signal distribution of wiring harnesses in the distribution box, efficient and high-quality transmission of electrical energy, and shielding of external signal interference.

I. New energy vehicle high-voltage wiring harness main components of the connector? Connector is an important functional component to accomplish signal transmission and energy transfer. When two devices, components and systems transmit light, signal and current between each other, connectors with matching functions and structures are required. Therefore, connectors are essential basic components of the whole electronic equipment. High-voltage connector for new energy vehicles is a mechatronic product, mainly composed of contact parts, insulators, shells and accessories, of which: the contact parts are the core components of the connector to complete the optical and electrical signal connection, through the insertion and closure of the contact parts to complete the vehicle in the vehicle in the optical and electrical signal connection; insulators and shells are mainly used for the role of fixation, insulation and mechanical protection. Manufacturing process set of electrical performance design, CNC machining, stamping technology, plastic pressure technology, precision die-casting technology, strict test methods and other multifaceted technology combinations in one. As the quality and precision of high-voltage connectors directly affect the electrical, mechanical and environmental performance of the connector, which in turn affects the driving safety of electric vehicles, high-voltage connectors have high quality requirements and manufacturing precision, belonging to the connector field of high value-added high-end products.

II. New energy vehicle high voltage wiring harness main components of the wire harness? The type of wire and cable used in automotive wiring harnesses is affected by the environment and function in which the harness is located. For example, the environment around the engine, power battery, etc. is high temperature, and there are many corrosive gases and liquids. Therefore, must use high temperature, oil, vibration and friction resistant wire; luggage compartment cover on the wire to maintain its elasticity at low temperatures, so we must choose the cold elastic wire to ensure its normal operation; automatic transmission on the wire must be resistant to high temperatures, resistant to hydraulic oil, and its temperature stability should be good; weak signal sensors to be used with shielded wire, such as vibration sensors and crankshaft position sensors, ABS wheel speed sensors and so on. Door wire bending resistance requirements and so on. Automotive wiring harnesses commonly used wires usually use multi-stranded stranded copper wire, insulating skin for the PVC insulation material. The wires used in the wiring harness should have temperature resistance, oil resistance, abrasion resistance, water resistance, corrosion resistance, oxidation resistance, flame retardant and other characteristics. Electric vehicle high-voltage cable to withstand a higher voltage (rated voltage higher 600 V), the current is larger (rated current higher 600 A), electromagnetic radiation is stronger, so the diameter of the cable increases significantly, while in order to avoid electromagnetic radiation on the surrounding electronic equipment to produce strong electromagnetic interference, affecting the normal operation of other electronic equipment, the cable is also designed to anti-electromagnetic interference shielding structure, that is, the use of coaxial structure, the use of internal The inner conductor and outer conductor (shielding) together, the magnetic field inside the cable into concentric distribution, and the electric field from the inner conductor points to and stops at the outer conductor, so that the cable around the outside of the electromagnetic field is zero, that is, shielded from electromagnetic radiation, so as to ensure the normal operation of electric vehicles.

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