Washing machine

Patent metadata

Field	Value
Publication number	US-9611861-B2
Application number	US-201414188904-A
Country	US
Kind code	B2
Filing date	Feb 25, 2014
Priority date	Jun 21, 2013
Publication date	Apr 4, 2017
Grant date	Apr 4, 2017

Abstract

A washing machine having a centrifugal fan which may increase a discharge flow rate. The washing machine includes a centrifugal fan adapted to cool a motor, wherein the centrifugal fan comprises a circular plate connected to a shaft of the motor, and a plurality of blades radially arranged around a center of the circular plate, each of the blade includes an inlet portion extending to form an inlet for external air passing therethrough, and a guide bent and inclined from the inlet portion, and an outlet portion bent from the guide to form an outlet for the external air.

First claim

What is claimed is:

1. A washing machine comprising:
an outer tub disposed in a body of the washing machine to store water therein;
a rotatable tub disposed in the outer tub to accommodate laundries;
a pulsator rotatably disposed at a lower side of the rotatable tub;
a motor disposed under the outer tub to supply driving force to the pulsator;
a motor pulley connected to a shaft of the motor to transfer the driving force to the pulsator; and
a centrifugal fan disposed between the motor and the motor pulley to cool the motor, the centrifugal fan including:
a circular plate connected to the shaft of the motor; and
a plurality of blades radially arranged around a center of the circular plate, at least one of the plurality of blades including:
an inlet portion extending to form an inlet for external air to pass therethrough;
a guide bent and inclined from the inlet portion; and
an outlet portion bent from the guide to form an outlet for the external air,

wherein the inlet portion extends in a radial direction of the circular plate to be in line with a center of the shaft, and the outlet portion extends in the radial direction of the circular plate to be in line with the center of the shaft.

2. The washing machine according to claim 1 , wherein an angle formed between a radial line extending outward from the center of the shaft and the guide is between about 25° and about 45°.

3. The washing machine according to claim 1 , wherein the at least one of the plurality of blades further includes an embossed portion to reinforce the blade during rotation of the blade.

4. The washing machine according to claim 1 , wherein an embossed portion is formed on the circular plate.

5. The washing machine according to claim 1 , wherein two adjacent blades of the plurality of blades are integrally formed.

6. The washing machine according to claim 1 , wherein the at least one of the plurality of blades further includes a bent portion perpendicularly bent from the guide to be fixed to the circular plate.

7. The washing machine according to claim 5 , wherein the at least one of the plurality of blades further includes a bent portion bent from the guide to be fixed to the circular plate.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Hyun Joo
• Seo Eung Ryeol
• Wee Hoon
• Lee Jin Ki
• Jeon You Eok
• Han Kwang Kyu

Classifications

• F04D29/30

  Vanes · CPC title

• F04D29/281

  for fans or blowers · CPC title

• D06F37/30

  Driving arrangements  (control circuits or arrangements D06F34/08) · CPC title

• D06F37/206

  Mounting of motor · CPC title

• D06F37/00

  Details specific to washing machines covered by groups D06F21/00 - D06F25/00 · CPC title