| 摘要 |
PROBLEM TO BE SOLVED: To provide a brushless motor in which a circuit for driving/control realizing reduction in thickness and dimension, space saving and high output is integrated together with a motor by solving the problem of deterioration in workability and an increase in occupied space in a heat radiation structure of a power unit of the circuit for driving/control for driving the brushless motor capable of simultaneously driving various mechanisms etc. of a copier and a laser beam printer. SOLUTION: The brushless motor has a configuration in which a copper foil 23a is arranged on a side 11a opposite to a rotor magnet end surface 4a of a circuit board 11 of the brushless motor, and the copper foil 23a is coupled with a pattern 31V to which a lead of a power unit 15V of the driving/control circuit for driving the brushless motor mounted on a surface 11b opposite to the copper foil 23a, via a through hole 23e. With this configuration, the area of the copper foil to which the lead of the power unit 15V is connected can be enhanced and heat can be suppressed without additional parts for heat radiation, and thus, reduction in thickness and dimension and space saving can be easily realized. COPYRIGHT: (C)2007,JPO&INPIT
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