Motor overheating and low efficiency—what’s the real problem? If you work in motor design or deal with motors regularly, you may have noticed that sometimes, even when the winding and control system are perfectly fine, the motor still gets hot and its efficiency doesn’t improve. The problem often lies in one critical area—excessive core loss in the stator.
How does the stacking method of stator and rotor cores affect the performance of a new energy vehicle motor? As a core lamination designer with years of experience, I often encounter this question. In fact, the stacking method directly influences the efficiency, reliability, noise level, and cost of EV motors. Choosing the right method is critical—especially for high-performance permanent magnet synchronous motors (PMSM) used in electric vehicles.
When it comes to buzzwords in new energy vehicle technology, what comes to your mind? 800V platform? SiC power devices? Or hub motors? Among the hottest trends, the hairpin motor (flat wire motor) is certainly leading the pack. Ever since Tesla adopted this technology, discussions surrounding hairpin motors have only intensified. We’ve previously published several technical articles on hairpin motor technology—such as flat wire techniques used in NEV drive motors. Feel free to check them out if you're interested.
Are you wondering why winding methods are critical in axial flux motor design? As an experienced motor designer, I've spent years optimizing winding structures to improve performance, reduce loss, and simplify manufacturing. In this blog, I’ll guide you through the most common and advanced winding techniques used in axial flux motors.
Have you ever wondered what drives the heart of drones, robot vacuums, or electric vehicles? These high-tech machines all rely on BLDC motors, and inside these motors, there's a fascinating difference in stator winding methods—some follow the "concentrated" camp. In contrast, others belong to the "distributed" side. Don’t underestimate these winding styles—they affect everything from motor efficiency and noise to cost and performance. Behind them are countless engineers’ clever design decisions.
In recent years, many automakers have talked about applying axial flux motors in new energy vehicles. But due to manufacturing difficulties and high costs, most companies were still waiting and watching. However, at this year's Shanghai Auto Show, several companies showcased their axial motor products. Let’s take a look together. Personally, I see great potential for axial flux motors as range extenders.
Many luxury car brands see the axial flux motor as the best solution for electrification. But do you know which car models are already using it? The axial flux motor is known for its high power density, compact size, and fast response. Compared to traditional radial flux motors, it has shorter magnetic paths, higher torque output, and better cooling performance.
Is the drive motor underperforming because of heat? As the need for high power density and high reliability grows in new energy vehicles, motor cooling has become a major concern. You may ask: water cooling is already mature, so why are more manufacturers turning to oil cooling? What is the future of oil-cooled motors?
Have you ever wondered how the amorphous motor core process can revolutionize electric motor efficiency? Amorphous alloys have gained significant attention in the motor industry due to their exceptional low-loss properties. Compared to traditional silicon steel, amorphous materials are thinner, harder, and more brittle after annealing, making their processing far more complex.