Patent ID: 9553490
Date: 2017-01-24
CPC Classifications: H02K

Claim:
1. A motor, comprising: a rotary portion configured to rotate about a center axis extending in an up-down direction; and a stationary portion configured to support the rotary portion; wherein the rotary portion includes a shaft extending along the center axis, a rotor holder configured to rotate together with the shaft, and a rotor magnet held in the rotor holder, the stationary portion includes a bearing member configured to rotatably support the shaft, a housing configured to hold the bearing member, a stator held in the housing and radially opposed to the rotor magnet, a circuit board directly or indirectly held in the housing, positioned axially below the rotor holder and electrically connected to the stator, and a circuit board support portion defined together with the housing as a single monolithic member or directly or indirectly held in the housing, directly or indirectly attached to a device body and configured to axially support the circuit board; the circuit board includes a first circuit board positioned axially above the circuit board support portion and a second circuit board positioned axially below the circuit board support portion; the first circuit board and the second circuit board are electrically connected to each other via a connecting member; the first circuit board and the second circuit board at least partially overlap with each other in an axial direction; an attachment portion configured to attach the motor to a device is positioned on an outer peripheral surface of the circuit board support portion; and the attachment portion includes two or more attachment portions distributed along a circumferential direction evenly or substantially evenly, and the attachment portion is provided directly axially between the first circuit board and the second circuit board.