The market application of insulation material products in the automotive industry
2025-09-25 21:14:52


Insulating materials refer to materials with high resistivity and low dielectric loss, which can prevent the passage of current and charge accumulation. Insulation materials have a wide range of applications in the automotive industry, mainly used for electrical insulation and protection of components such as electric vehicles, charging stations, engines, lights, wiring harnesses, etc. Insulation material products include insulation paint, insulation paper, insulation oil, enameled wire, composite insulation materials, powder coatings, etc.

 

The application scenarios of insulation material products in the automotive industry mainly include the following:

 

Electric vehicle: Electric vehicle refers to a vehicle that is powered by electricity and drives the motor to work. Electric vehicles require the use of a large number of high-voltage electrical components, such as power batteries, drive motors, controllers, frequency converters, etc. These components require insulation materials for isolation and protection to prevent hazards such as short circuits, electric leakage, and fires. Insulating materials can improve the safety and reliability of electric vehicles, extend their service life, and reduce failure rates. Common insulation material products include:

 

Insulation paint: Insulation paint is a type of coating applied to metal surfaces or other conductor surfaces, which can form a uniform and dense insulation film to prevent oxidation or corrosion caused by metal contact with the outside world. It can also improve the heat resistance and wear resistance of metals. Insulation paint is mainly used in electric vehicles for the application of winding coils, iron cores, and other parts of driving motors, controllers, and other components to improve their insulation strength and aging resistance.

 

Insulation paper: Insulation paper is a type of paper made from cellulose or other organic substances, which has good mechanical strength and flexibility, as well as high temperature and humidity resistance. Insulating paper is mainly used in electric vehicles as a cushion for partitions, gaskets, and other parts of power batteries, drive motors, etc. to isolate plates of different polarities or metal parts of different potentials and prevent short circuits or discharges.

 

Insulating oil: insulating oil is a liquid with good dielectric properties and chemical stability, which can be used as a coolant and lubricant to maintain its insulation performance under high temperature or high pressure. Insulating oil is mainly used in electric vehicles for cooling and lubrication of components such as frequency converters and transformers, in order to reduce their working temperature and resistance, improve their efficiency and lifespan.

 

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Enamelled wire: Enamelled wire is a type of wire that is coated with one or more layers of insulation paint on the surface of a metal wire, which can reduce the diameter and weight of the wire, improve the insulation and heat resistance of the wire. Enamelled wire is mainly used in electric vehicles to drive the winding coils of components such as motors and controllers, in order to reduce the volume and weight of the coils, improve the number of turns and power density of the coils.

 

Composite insulation material: Composite insulation material refers to a material composed of two or more materials with different properties, which can fully utilize the advantages of various materials, make up for the shortcomings of various materials, and form a new type of material with comprehensive performance. Composite insulation materials are mainly used in the production of shells, brackets, and other parts of power batteries, drive motors, and other components in electric vehicles to improve their strength, stiffness, wear resistance, corrosion resistance, etc.

 

Powder coating: Powder coating is a solid powder coating composed of resins, curing agents, pigments, fillers, additives, etc. It can be applied to metal or non-metal surfaces through electrostatic spraying or fluidized bed methods, and then heated and cured to form a uniform and dense coating. Powder coatings are mainly used for surface treatment of components such as power batteries and charging stations in electric vehicles to improve their insulation, heat resistance, corrosion resistance, flame retardancy, etc.

 

Charging Station: A charging station refers to a device that provides charging services for electric vehicles, which can convert AC or DC electricity into voltage and current suitable for electric vehicle charging. The charging station needs to be isolated and protected with insulating materials to prevent danger such as electric shock, leakage, overheating, etc. Insulating materials can improve the safety and stability of charging stations, extend their service life, and reduce failure rates.