Development of dual air gap printed coil BLDC motor

Author

Jang, G.H. ; Chang, J.H.

Author_Institution

Dept. of Precision Mech. Eng., Hanyang Univ., Seoul, South Korea

Volume

35

Issue

3

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

1789

Lastpage

1792

Abstract

Small effective air gap is one of the major design considerations to improve performance in brushless DC motors. In axial gap motors, however, it is limited by thickness of armature coil as well as the friction loss in a bearing due to the axial magnetic force. This paper investigated the magnetic field, force, torque and loss in an axial gap motor using finite element method (FEM) and Maxwell stress tensor, and developed a novel shape of dual air gap printed coil motor which increases the performance as well as the manufacturing flexibility

Keywords

air gaps; brushless DC motors; finite element analysis; losses; machine bearings; machine theory; magnetic fields; magnetic forces; small electric machines; tensors; FEM; Maxwell stress tensor; armature coil thickness; axial gap motor; axial gap motors; axial magnetic force; bearing friction loss; brushless DC motors; dual air gap printed coil BLDC motor; finite element method; force; iron loss; manufacturing flexibility; performance improvement; printed coil motor; torque; Brushless DC motors; Coils; DC motors; Finite element methods; Friction; Magnetic fields; Magnetic forces; Shape; Tensile stress; Torque;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.767378

Filename

767378