METHOD FOR MANUFACTURING BRUSHLESS DC MOTOR STATOR AND STATOR OF BRUSHLESS DC MOTOR MANUFACTURED BY THIS METHOD Russian patent published in 2006 - IPC H02K15/02 H02K15/85 H02K1/14 

FIELD: electrical engineering; direct-current brushless motor stator and its mechanical design.

SUBSTANCE: first alternative of proposed method for manufacturing DC brushless motor stator includes step-by-step formation of rear-yoke strip-shaped material by stamping silicon sheet steel, formation of stator rear yoke by helical placement of rear yoke material, formation of poles having rounded-off components on their outer circular surface using magnetic iron powder, connection of poles to rear yoke by inserting them into inner circular surface of rear yoke, covering of poles with insulating paper, this being followed by winding outer circular surfaces of poles covered with insulating paper. Another alternative of proposed method also includes step-by-step formation of strip-shaped rear-yoke material by stamping silicon sheet steel, formation of stator rear yoke by helical placement of rear yoke material, formation of poles having rounded-off components on their outer circular surface using magnetic iron powder, winding of formers, connection of formers to outer circular pole surfaces, and connection of poles to rear yoke by inserting poles into inner surface of rear yoke. Mechanical design of stator manufactured by one of proposed methods as well as mechanical design of DC brushless motor whose stator is manufactured using one of proposed methods are given in invention specification.

EFFECT: reduced cost, improved saturation and core loss characteristics.

13 cl, 23 dwg