Electrical generator or motor structure – Dynamoelectric – Linear
Patent
1989-08-29
1991-03-12
Wong, Peter S.
Electrical generator or motor structure
Dynamoelectric
Linear
310 77, 360105, H02K 7106, G11B 2122
Patent
active
049995308
ABSTRACT:
In a planar linear pulse motor, the relative movement between the stator and the armature is positively restricted when no electric current is supplied to the drive coils by means of a lock member provided on either the armature or the stator. This lock member is attracted to a permanent magnet by its biasing magentic flux so as to be brought into contact with whichever of the armature or stator does not have the lock member on it. As a result, the armature may be locked up without consuming any electric power. If the lock member is attached to the stator or armature by means of an elastic member, the vertical dimension of the member attaching the lock member to the stator or armature can be reduced. Furthermore, the mechanical strength and the security of the engagement of the lock member to the stator or armature can be increased. As a result, the planar linear pulse motor disclosed is compact and highly reliable. In those cases when the lock member is mounted on the stator, there is no increase in the moving mass of the motor, resulting in no impairment of the rate of response of the pulse motor.
REFERENCES:
patent: 4594627 (1986-06-01), Viskochil et al.
patent: 4686595 (1987-08-01), Bryer
Azuma Hiroshi
Itoh Kohji
Takemura Kenji
Omron Corporation
Rebsch D. L.
Wong Peter S.
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