Title:
BLOWER
Document Type and Number:
WIPO Patent Application WO/2021/192708
Kind Code:
A1
Abstract:
Provided is a blower that is capable of inhibiting movement of an impeller in a thrust direction. A first case 11 has a first intake port and a first exhaust port. A second case 12 is provided inside the first case, and has a second intake port connected to the first intake port and a second exhaust port connected to the first exhaust port. An impeller 20 serving as a centrifugal fan is provided inside the second case and a rotation axis thereof coincides with the central axes of the first intake port and the second intake port. A motor 17 is provided inside the second case and rotates the impeller. A first flow channel CH1 is provided between the motor and the second case on a side, of the impeller, opposite to the first intake port and the second intake port. A second flow channel CH2 is provided between the first case and the second case, and is connected to the first flow channel, the first intake port, and the second intake port.
Inventors:
MATSUSHITA HIROKI (JP)
MASHIKO SHUNJI (JP)
AKABANE YOSHINORI (JP)
MASHIKO SHUNJI (JP)
AKABANE YOSHINORI (JP)
Application Number:
PCT/JP2021/005253
Publication Date:
September 30, 2021
Filing Date:
February 12, 2021
Export Citation:
Assignee:
NIDEC COPAL ELECTRONICS CORP (JP)
International Classes:
F04D29/42
Foreign References:
| JPS5395410U | 1978-08-03 | |||
| JPS53150907U | 1978-11-28 | |||
| US7775763B1 | 2010-08-17 | |||
| JP2015028341A | 2015-02-12 |
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
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