New Structures of Brush and Brushless DC Motors using Soft Magnetic Composites for Automotive Applications 2001-01-0400
The original brush and brushless DC motor structures presented in this paper make use of a special winding technique which presents several advantages: the copper volume of the motor is minimized, the mechanical structure is well adapted to the pressing process because the armature is designed with a small number of relatively wide slots and the winding process is easier. The isotropic properties of soft magnetic composites are also used to design a magnetic circuit where the magnetic flux is circulating in three dimensions. It is then possible to maximize the torque-to-weight ratio and to minimize the total axial length of the motor. This paper describes an efficient use of a new technology of magnetic material that needs a new structural design approach taking into account the advantages and constraints of the material, and that the direct replacement approach is usually not optimal.
Citation: Viarouge, P., Cros, J., Chalifour, Y., and Gélinas, C., "New Structures of Brush and Brushless DC Motors using Soft Magnetic Composites for Automotive Applications," SAE Technical Paper 2001-01-0400, 2001, https://doi.org/10.4271/2001-01-0400. Download Citation
P. Viarouge, J. Cros, Y. Chalifour, C. Gélinas
Selem Electrotechnologies Inc., Quebec Metal Powders Ltd.
SAE 2001 World Congress
Powdered Metal Performance Applications-SP-1610, SAE 2001 Transactions Journal of Materials & Manufacturing-V110-5