Title:
BLOWER DEVICE, AND OUTDOOR UNIT FOR AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2019/215783
Kind Code:
A1
Abstract:
This blower device is provided with: a propeller fan having a shaft section which is provided on a rotation axis, and having blades which are provided around the shaft section; and a fan guard provided downwind of the propeller fan and having ribs which define a plurality of openings through which air is allowed to flow. When viewed in a direction parallel to the rotation axis, the fan guard has a first region which is disposed overlapping the shaft section, and a second region which is located on the outer peripheral side with respect to the shaft section and the inner peripheral side with respect to the path of rotation of the blades. If the dimension of the ribs in the direction parallel to the rotation axis is defined as the height of the ribs, the height of the ribs in the first region is less than the height of the ribs in the second region.
Inventors:
YAMAMOTO KATSUYUKI (JP)
TADOKORO TAKAHIDE (JP)
TERAMOTO TAKUYA (JP)
ABE TAKAFUMI (JP)
FUSE TOSHIYA (JP)
TADOKORO TAKAHIDE (JP)
TERAMOTO TAKUYA (JP)
ABE TAKAFUMI (JP)
FUSE TOSHIYA (JP)
Application Number:
PCT/JP2018/017631
Publication Date:
November 14, 2019
Filing Date:
May 07, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04D29/00; F24F1/56
Foreign References:
| JPH0674196A | 1994-03-15 | |||
| JP2013119816A | 2013-06-17 | |||
| JPH11223362A | 1999-08-17 | |||
| JPH05296495A | 1993-11-09 | |||
| JP4403691B2 | 2010-01-27 |
Other References:
See also references of EP 3792498A4
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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