|Magfine reduced weight motor|
Japan’s Asmo Co and Aichi Steel have announced their joint development of a small automotive motor using Aichi’s Magfine. The motor, designed for applications such as power seats and windows, or windshield wipers, is downsized by 50% and reduced in weight by 40% compared to the previous model, and will be deployed in the Toyota Crown.
Magfine is a Nd-Fe-B (neodymium, iron, and boron) anisotropic bonded magnet which has a magnetic energy product of 25 MGOe (megagauss-oersteds) and a high heat resistance of up to 150º C, according to Aichi, which developed the production technology for the magnet powder and the resulting anisotropic bonded magnets.
The Magfine motor design uses a four-pole magnet design, reducing the thickness of the magnet and yoke, and increasing the armature size.