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.
New Structures of Brush and Brushless DC Motors using Soft Magnetic Composites for Automotive Applications
Sae Technical Papers
SAE 2001 World Congress ; 2001
2001-03-05
Aufsatz (Konferenz)
Englisch
British Library Conference Proceedings | 2001
|Small brush DC motors using soft magnetic composites for 42V automotive applications
Kraftfahrwesen | 2003
|Small brush DC motors using soft magnetic composites for 42V automotive applications
Tema Archiv | 2003
|Small Brush DC Motors using Soft Magnetic Composites for 42V Automotive Applications
SAE Technical Papers | 2003
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