| 摘要 |
PURPOSE: A brushless motor is provided to improve an increase rate of torque in accordance with an increase of currents, thereby stably maintaining driving of the motor through reduction in cogging torque and smooth rotation of a rotor. CONSTITUTION: A rotor(20) is relatively fixed at a rotating shaft(22). Plural permanent magnets(24) are separated from one another along with a girth direction of the rotating shaft. A stator(30) is coaxially separated from the rotor by plural slots(34). The stator has a regular ratio with the permanent magnets along with the girth direction of the rotating shaft. Plural stator teeth(32) are arranged on an outer side of the rotor. An outer circumference of each magnet frame or an inner circumference of the stator consists of three arcs.
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