MOTOR AND FAN DEVICE USING THE SAME
First Claim
1. A motor, comprising:
- a rotor which rotates around a rotary shaft;
a first stator core in which a plurality of first columnar core portions and a plurality of claw-type teeth are arranged on circles, respectively, the centers of the circles being the rotary shaft; and
a second stator core in which a plurality of second columnar core portions and a plurality of claw-type teeth are arranged on circles, respectively, the center of the circles being the rotary shaft, whereinthe motor comprises a stator in which the first stator core and the second stator core are opposed so that the first and second columnar core portions overlap each other, and in which a coil is provided at each of the overlapping columnar core portions, whereinthe first and the second stator cores comprise a recessed portion in at least one of the columnar core portions, and a projected portion in at least one of the columnar core portions, the projected portion being adapted to be fitted in the recessed portion.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides a motor which includes a stator including a plurality of one-phase stators composed of a pair of stator cores having claw-type teeth and a coil for generating magnetic flux at the claw-type teeth, and a rotor for generating torque at a rotary shaft, wherein the stator core includes a plurality of split cores having the same shape, and the split cores are formed to have a recessed portion and a projected portion to be fitted in the recessed portion. Thereby, by using a plurality of the split cores having the same shape, one stator core is formed. On this occasion, the shape of the split cores is molded so that the recessed portion and the projected portion of one stator core are disposed at positions at which those are fitted to the projected portion and the recessed portion of the opposing stator core, respectively.
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Citations
14 Claims
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1. A motor, comprising:
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a rotor which rotates around a rotary shaft; a first stator core in which a plurality of first columnar core portions and a plurality of claw-type teeth are arranged on circles, respectively, the centers of the circles being the rotary shaft; and a second stator core in which a plurality of second columnar core portions and a plurality of claw-type teeth are arranged on circles, respectively, the center of the circles being the rotary shaft, wherein the motor comprises a stator in which the first stator core and the second stator core are opposed so that the first and second columnar core portions overlap each other, and in which a coil is provided at each of the overlapping columnar core portions, wherein the first and the second stator cores comprise a recessed portion in at least one of the columnar core portions, and a projected portion in at least one of the columnar core portions, the projected portion being adapted to be fitted in the recessed portion.
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2. A motor, comprising:
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a rotor which rotates around a rotary shaft; a first stator core in which a plurality of first columnar core portions and a plurality of claw-type teeth are arranged on circles, respectively, the centers of the circles being the rotary shaft; and a second stator core in which a plurality of second columnar core portions and a plurality of claw-type teeth are arranged on circles, respectively, the center of the circles being the rotary shaft, wherein the motor comprises a stator in which the first stator core and the second stator core are opposed so that the first and second columnar core portions overlap each other, and in which a coil is provided at each of the overlapping columnar core portions, wherein the first and the second stator cores comprise a plurality of split cores having the same shape, and the split core comprises a plurality of the columnar core portions and has a fitting part for laying the opposing split cores on each other in an alternate brick laying form. - View Dependent Claims (5, 6)
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3. A motor comprising
a rotor which rotates around a rotary shaft; - and
a stator formed by opposing a plurality of stator cores to each other, the stator core comprising a columnar core portion on which a plurality of coils arranged on the same plane around the rotary shaft are disposed and claw-type teeth, wherein the stator core comprises a recessed portion in at least one columnar core portion, and a projected portion in at least one columnar core portion, the projected portion being adapted to be fitted in the recessed portion. - View Dependent Claims (13, 14)
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4. A motor comprising
a rotor which rotates around a rotary shaft; - and
a stator formed by opposing a plurality of stator cores to each other, the stator core comprising a columnar core portion on which a plurality of coils arranged on the same plane around the rotary shaft are disposed and claw-type teeth, wherein the stator cores comprise a plurality of split cores having the same shape, and the split core comprises a plurality of the columnar core portions and has a fitting part for laying the opposing split cores on each other in an alternate brick laying form.
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7. A motor comprising
a stator including a plurality of one-phase stators, the one-phase stator including a pair of stator cores having claw-type teeth and a coil generating magnetic flux at the claw-type teeth; - and
a rotor which generates torque at a rotary shaft, wherein the stator core is divided into a plurality of split cores having the same shape, and the split core includes a recessed portion and a projected portion which is adapted to be fitted in the recessed portion. - View Dependent Claims (9, 11, 12)
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8. A motor comprising
a stator including a plurality of one-phase stators, the one-phase stator including a pair of stator cores having claw-type teeth and a coil generating magnetic flux at the claw-type teeth; - and
a rotor which generates torque at a rotary shaft, wherein the stator core comprises a plurality of split cores having the same shape, and the split core includes at least one recessed portion, and a plurality of projected portions. - View Dependent Claims (10)
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Specification