Title:
BLOWER AND VACUUM CLEANER
Document Type and Number:
Japanese Patent JP2018155239
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a blower which enables cooling of a circuit for driving a motor and an electronic component included in the circuit while inhibiting deterioration of the air sending efficiency.SOLUTION: A blower includes: a motor 10 having a shaft 11 which is disposed along a central axis extending vertically; an impeller 20 which is fixed to the shaft and may rotate around the central axis; a motor housing 30 disposed at the radial outer side of the motor; a blower housing 40 that is disposed at the radial outer side of the impeller and opposes a radial outer surface of the motor housing with a gap formed therebetween; a circuit board 50 that is disposed below the motor in an axial direction; and a substrate case 70 which is disposed below the motor in the axial direction and encloses the circuit board. The substrate case includes a substrate case inflow port 73, which allows communication between the exterior side and the interior side of the substrate case, at an upper end part of a substrate case cylinder part extending in a center axis direction.SELECTED DRAWING: Figure 3
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Inventors:
HAYAMITSU RYOSUKE
Application Number:
JP2017178336A
Publication Date:
October 04, 2018
Filing Date:
September 15, 2017
Export Citation:
Assignee:
NIHON DENSAN KK
International Classes:
F04D29/44; F04D23/00; F04D29/58