As the core component of the new energy vehicle, the electric drive system has an important impact on the power, economy, comfort, safety and life of the vehicle.

In the electric drive system, the motor is used as the core of the core. The performance of the motor largely determines the performance of the vehicle. At present, in terms of the needs of industrialization, low cost, miniaturization, and intelligence are the top priorities.

Today, let’s take a look at the concept and definition of the new motor technology – flat wire motor, and what advantages the flat wire motor has compared to the traditional round wire motor.

The core advantages of flat wire motors are their small size, high efficiency, strong thermal conductivity, low temperature rise and low noise.

The interior of the flat wire motor is more compact and has fewer gaps, so the contact area between the flat wire and the flat wire is larger, and the heat dissipation and heat conduction are better; at the same time, the contact between the winding and the core slot is better, and the heat conduction is better.

We know that the motor is very sensitive to heat dissipation and temperature, and the improvement of heat dissipation also brings about an improvement in performance.

In some experiments, through temperature field simulation, it is concluded that the temperature rise of the flat wire motor with the same design is 10% lower than that of the round wire motor. In addition to better thermal performance, some other properties, including temperature-related, can be improved.

NVH is also one of the hot topics of current electric drive. The flat wire motor can make the armature have better rigidity and can suppress the noise of the armature.

In addition, a relatively small notch size can also be used to effectively reduce the cogging torque and further reduce the electromagnetic noise of the motor.

The end refers to the part of the copper wire outside the slot. The copper wire in the slot plays a role in the work of the motor, while the end does not contribute to the actual output of the motor, but only plays a role in connecting the wire between the slot and the slot. .

The traditional round wire motor needs to leave a long distance at the end due to process problems, which is to prevent the copper wire in the slot from being damaged during processing and other processes, and the flat wire motor fundamentally solves this problem .

We have also reported before that Founder Motor plans to invest 500 million yuan to build a 1 million units/year new energy vehicle drive motor project in Lishui, Zhejiang. In addition to established companies such as Founder Motor, there are many new forces in China that are also accelerating their deployment.

In terms of market space, according to an analysis by industry insiders, according to the sales volume of 1.6 million new energy passenger vehicles in 2020, the domestic demand for 800,000 sets of flat wire motors, and the market size is close to 3 billion yuan;

From 2021 to 2022, it is expected that the penetration rate of flat wire motors in the field of new energy passenger vehicles will reach 90%, and the demand for 2.88 million sets will be reached by then, and the market size will also reach 9 billion yuan.

In terms of technical requirements, the overall trend of the industry and policy orientation, flat wire motors are bound to become a major trend in the field of new energy, and there will be more opportunities behind this trend.

Contact: Jessica