| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor capable of efficiently dissipating heat generated from a circuit board by utilizing an air flow which passes the inside of the motor.SOLUTION: The motor comprises: a base section 21A including a circuit board arrangement part 211A; a circuit board 23A disposed on a bottom face of the circuit board arrangement part 211A; and a flow guide plate 4A disposed at an upper side of the circuit board arrangement part 211A. The flow guide plate 4A includes a plate part 41A which is axially overlapped with at least a portion of the circuit board arrangement part 211A. The flow guide plate 4A includes a second opening 52A communicating a first space 61A at an upper side of the base section and at a lower side of the flow guide plate 4A and a second space 62A at an upper side of the flow guide plate 4A. When an air flow is generated between a first opening 51A and a third opening 52A, the air flow which flows from the outside of the motor into the first opening 51A is guided by the flow guide plate 4A and flows forwards along a top face of the circuit board arrangement part 211A of the base section. Heat generated from the circuit board 23A is transferred from the bottom face of the circuit board arrangement part 211A to the top face thereof and dissipated by the air flow. |
