| 摘要 |
A cylinder motor apparatus includes a chassis, a shaft, a circuit board, a supporting member for supporting the shaft on the chassis in a freely rotatable state, a rotor fixed to the shaft, which has a stator housing having a circular, concave shape facing in a direction away from the supporting member and a magnet provided in the stator housing, a stator housed in the stator housing and fixed to the circuit board, and an electric circuit provided on the circuit board for controlling the rotation of the rotor.
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