US 2019/0101132 A1Published application

Blower and vacuum cleaner

AssigneeNidec Corporation

InventorsAkikazu FUJIWARA, Tomoyoshi SAWADA, Yoichi ENOMOTO, Yuki MASUI

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Abstract

A blower includes an impeller fixed to a shaft extending along a central axis in an up-down direction, the impeller being rotatable about the central axis, a motor rotating the impeller, a motor housing outside the motor in a radial direction, a blower case outside the motor housing in the radial direction, and a circuit board below a lower end of the motor housing. A flow passage in communication with the impeller is between a radially outer surface of the motor housing and a radially inner surface of the blower case. The circuit board includes a circuit board through hole that penetrates through the circuit board in the axial direction inside the radially outer surface of the motor housing in the radial direction.

Claims12

Dependent claims

A blower comprising:

an impeller fixed to a shaft disposed along a central axis extending in an up-down direction, the impeller being rotatable about the central axis;
a motor that rotates the impeller;
a motor housing disposed outside the motor in a radial direction;
a blower case disposed outside the motor housing in the radial direction;
and
a circuit board disposed below a lower end of the motor housing;
wherein
a flow passage in communication with the impeller is provided between a radially outer surface of the motor housing and a radially inner surface of the blower case;
and
the circuit board includes a circuit board through hole that penetrates through the circuit board in the axial direction at a portion inside the radially outer surface of the motor housing in the radial direction.

7 more elements

Dependencies are inferred from the claim text.