Permanent magnet type stepping motor and adjusting method for mi

Details Permanent magnet type stepping motor and adjusting method for mi Permanent magnet type stepping motor and adjusting method for mi

1991-10-22

1993-11-23

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, H02K 3710

Patent

active

052647471

ABSTRACT:
A stepping motor minimizes detent torque without causing a considerable dispersion among individual stepping motors. The stepping motor comprises a rotary shaft, a cylindrical stator including first and second driving coils disposed along an axial direction of the rotary shaft and energizable with driving currents having different phases. A cylindrical permanent magnet rotor is secured to the rotary shaft in a coaxial relationship with the stator and is magnetized in a predetermined pattern. The motor has a housing to which the stator is secured and in which the rotor is accommodated for movement in the axial direction of the rotary shaft together with the rotary shaft and an adjustor for adjustably fixing the rotor with respect to the housing at a position in the axial direction of the rotary shaft at which the detent torque of the stepping motor presents a minimum value. An adjusting method for minimizing a detent torque of such stepping motor and a torque measuring apparatus which is used to put the adjusting method into practice are also disclosed.

REFERENCES:
patent: 4319398 (1982-03-01), Fukuzawa et al.
patent: 4839546 (1989-06-01), Kitahara
patent: 4877987 (1989-10-01), Flaig et al.
patent: 4896035 (1990-01-01), Tsuyama
patent: 4955128 (1990-09-01), Sogabe et al.

Affiliated with

Also associated with

Rating

Permanent magnet type stepping motor and adjusting method for mi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Permanent magnet type stepping motor and adjusting method for mi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Permanent magnet type stepping motor and adjusting method for mi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1851789