On November 1, 2022, CSJB Electromagnetic Wire Technology Corporation issued an announcement:
The second phase of the company's new high-voltage electromagnetic line for electric vehicle driving motor was successfully put into operation.
CSJB is a leading enterprise in China's flat electromagnetic wire industry and a national "invisible champion" enterprise. Its many high-end high-performance electromagnetic wire products and technologies are internationally advanced and China's leading level.
"The driving range and charging time are two key factors that cannot be avoided in the development and application of new energy vehicles. The high-voltage design of the system is conducive to the further improvement of energy efficiency and charging speed, and is the core technical route to improve the driving range and shorten the charging time of new energy vehicles."
In just a few years, the drive motor of electric vehicle has completed the technical upgrading from the traditional low-voltage round wire motor to the medium compressed flat wire motor. With the further improvement of people's demand for vehicle mileage and fast charging technology, "high-voltage" has become an inevitable choice for the development of drive motor technology.
In 2017, CSJB took the lead in launching the research and development of special electromagnetic wire series products for 800V and above high voltage drive motors of new energy vehicles, relying on years of research and development in the wire and cable industry, especially in the field of flat electromagnetic wire subdivision.
On the one hand, the company has increased its internal R&D investment and completed research on key technologies such as high-precision conductor processing and coating uniformity optimization;
On the other hand, we actively carried out research and development cooperation with upstream suppliers and research institutes, established post doctoral mobile workstations and joint engineering laboratories with Central South University, Hunan University of Science and Technology and other universities, and carried out in-depth research on special coating materials and conductor materials required for high-end special electromagnetic wires.
The R&D team of the company has successfully developed and put into production high-performance electromagnetic flat wire for 800V high-voltage drive motor of electric vehicles after five years of technological innovation.
Today, the company has developed eight different insulation solutions in the field of electromagnetic wires for 800V high-voltage drive motors, ranking the top in the country. Its products are rapidly favored by well-known Chinese electric vehicle manufacturers such as Ideal, Xiaopeng, NIO, etc. The orders and shipments of flat electromagnetic wires for electric vehicles are rapidly rising.
"The high-voltage of automobile drive motor is the mainstream technology route for the development of electric vehicles in the future. The research, development and application of electromagnetic wires for 800V high-voltage drive motors have also driven the upgrading of insulation materials, which has increased the effective value of the initial partial discharge voltage of the electromagnetic wires to more than 1400V, and improved the insulation reliability and power density of the drive motor.
Compared with the past, electric vehicles have higher range, faster charging speed, and even achieve the effect of super fast charging.