CENTRIFUGAL FAN, AND AIR CONDITIONER PROVIDED WITH CENTRIFUGAL FAN

Title:

CENTRIFUGAL FAN, AND AIR CONDITIONER PROVIDED WITH CENTRIFUGAL FAN

Document Type and Number:

WIPO Patent Application WO/2017/126445

Kind Code:

A1

Abstract:

Provided are a centrifugal fan which exhibits excellent reliability while inhibiting an increase in cost, and an air conditioner provided with such a centrifugal fan. A centrifugal fan (4) in an air-conditioning indoor unit (1) is provided with a main plate (60), and a plurality of blades (70). The main plate (60) is moulded from resin using a moulding die. The main plate (60) is annular when viewed from the direction of the rotational axis (O). The plurality of blades (70) are coupled to the blade-side surface (63) of the main plate (60). The plurality of blades (70) are annularly disposed around the rotational axis (O). The main plate (60) includes a plurality of gates (68) and a plurality of flow leaders (69). The gates (68) are sections into which the resin is injected during moulding. The flow leaders (69) are sections which function as flow paths for the resin injected into the corresponding gates (68). Each of the flow leaders (69) extends from the corresponding gate (68) to a central section of the nearest blade (70), when viewed from the direction of the rotational axis (O).

Inventors:

KASHIHARA TAKASHI
YAMASAKI TAKAHIRO

Application Number:

PCT/JP2017/001107

Publication Date:

July 27, 2017

Filing Date:

January 13, 2017

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)

International Classes:

F04D29/28; F04D29/62; F24F1/00

Domestic Patent References:

WO2014054175A1

2014-04-10

Foreign References:

JP2015086827A	2015-05-07
JP2002240105A	2002-08-28
JP2014009788A	2014-01-20
JP2014077380A	2014-05-01
JP2008215324A	2008-09-18

Other References: