Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1993-08-13
1996-01-23
LaBalle, Clayton E.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 52, 310 86, H02K 512, H02K 900, H02K 9197
Patent
active
054867282
ABSTRACT:
A micromotor comprises a cylindrical rotor casing having a central through-hole, and a rotor having a cylindrical, magnetic rotor block fixed on a rotor shaft and inserted in the central through-hole of the rotor casing. First and second bearings support the rotor shaft for rotation and are fitted, respectively, in opposite ends of the central through-hole of the rotor casing and define a sealed rotor chamber therebetween. Stator coils are attached to the outer rotor circumference of the rotor casing, and a stator casing is joined to the rotor casing coaxially with the rotor so as to cover that stator coils. A magnetic fluid is filled in the sealed rotor chamber between the first and second bearings between which is disposed the magnetic rotor block. A series of Peltier elements are attached to the outer circumference of the stator casing and electrically connected to a power supply to absorb heat generated by the operation of the components of the micromotor.
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LaBalle Clayton E.
Seiko Instruments Inc.
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