Patent ID: 9154013
Filing Date: 2015-10-06
Classification: H02K

Abstract:
1. A motor, comprising: a stator; a shaft; a rotor received in the stator, the stator comprising: two end caps fixed to the stator, each and cap including extending portions positioned between the plurality of fins, wherein a plurality of axially extending recesses is formed on a radially outer wall of the yoke portion; and each fin is axially arranged on the radially outer wall of the yoke portion and a radially inner portion of each fin is received in a corresponding said recess, each recess receives only one radially inner portion of a corresponding fin, and wherein each tooth has a radially inner surface that is uncovered by the covering portion, faces the rotor and is arc shaped, the arc-shape inner surfaces of the stator teeth and radially inner surfaces of the covering portions forming a smooth circular cylindrical surface that defines a space accommodating the rotor.