Patent Number: 6,670,732

Title: Magnet type stepping motor

Abstract: A magnet type stepping motor which has (1) a stator with three-phase statorwindings, and 6m pieces of stator main pole arranged side by side, where mis an integer and .gtoreq.1, the stator windings of one phase are woundaround every two stator main poles among the 6m pieces of the stator mainpole, wherein when the stator windings of one phase are excited with adirect current, m pieces of N pole and M pieces of S pole are formedalternately on the 6m pieces of stator main pole, and (2) a rotor of acylindrical permanent magnet magnetized in the circumferential directionto form Z/2 pieces of N pole and Z/2 pieces of S pole alternately, where Zis the number of rotor poles.

Inventors: Sakamoto; Masafumi (Gunma, JP)

Assignee:

International Classification: H02K 37/14 (20060101); H02K 37/12 (20060101); H02K 1/14 (20060101); H02K 037/00 (); H02K 001/12 ()

Expiration Date: 12/32016