eKontrol's high-speed and high-power hairpin motor for the commercial vehicle industry.

As one of the core components of new energy commercial vehicles, the electric drive system is of great significance to the vehicle's power, economy, reliability and durability.?

The motor is the core of the electric drive system; its performance and efficiency directly affect the vehicle's performance, and its size and weight will also affect the layout and light weight of the vehicle. Therefore, electrical engineers are racking their brains to increase power density, and the space inside the motor is precious.

For the first time in the industry, eKontrol applied high-speed and high-power hairpin motors to the electric drive system of commercial vehicles. Compared with round wire motors, it has a smaller volume, lower loss and higher efficiency under the same power conditions. Demand for new energy commercial vehicles. How does it do it?

The traditional round wire winding motor is like American mechanical irrigation, which is convenient. Still, it cannot fill the gap between them, wasting the precious cross-sectional area of the stator.

?In China, we know that the land is unique and will never be destroyed, so our mats are composed of four squares: the hairpin winding motor section and the copper wire is square.

By adopting a Hairpin Motor, the copper per unit area of the stator increases, and the fullness of the bare copper slot can be increased by 20-30%, thus improving the installation stability between copper wires and reducing electromagnetic noise.?

At the same time, the high slot fullness rate can effectively mitigate the winding resistance, and the lower the opposition, the lower the heat generation, thereby reducing the copper loss. In the case of the same power, the volume of the flat wire motor can be reduced by 10-20%, which meets the needs of new energy commercial vehicles.

Due to technical problems, the end of the round wire is generally left a little longer to prevent damage to the copper wire during the process. Because the flat wire is complex, the end can be kept shorter, which saves copper and reduces costs and Reduces the resistance.

The gap inside the hairpin motor winding is small, the contact area between the wire and the wire, between the winding and the core slot is large, the performance of heat dissipation and heat conduction is better, the temperature rise is lower, and the overall performance of the motor is better.

When it comes to the cutting-edge technology of new energy commercial vehicles, most of the attention is on the battery. With the advancement of battery technology, the focus is gradually shifting to the electric drive system. On the way of pursuing high efficiency and energy saving, eKontrol is accelerating the pace of positive research and development of electric drive systems, ranging from the implementation of double flat wire motor technology to the subtle design of heat dissipation and noise reduction. It is this little bit of progress that has given birth to the birth of one another explosive electric drive system.