Washing machine

Patent metadata

Field	Value
Publication number	US-9303351-B2
Application number	US-200913124327-A
Country	US
Kind code	B2
Filing date	Oct 23, 2009
Priority date	Oct 23, 2008
Publication date	Apr 5, 2016
Grant date	Apr 5, 2016

Abstract

A washing machine includes: a main body forming an external appearance; a tub installed at an inner side of the main body and keeping washing water in storage; a drum rotatably installed at the inner side of the tub; a rotational shaft coupled with the drum to transfer a driving force; a driving motor installed between the tub and the drum to rotate the rotational shaft; and a gasket installed between the drum and the tub and preventing leaked washing water from being introduced to the driving motor.

First claim

The invention claimed is:

1. A washing machine comprising:
a main body forming an external appearance;
a tub installed at an inner side of the main body and keeping washing water in storage;
a drum rotatably installed at the inner side of the tub;
a rotational shaft coupled with the drum to transfer a driving force;
a driving motor installed between the tub and the drum to rotate the rotational shaft;
a spider coupled with the rotational shaft and a rear surface of the drum to transfer the driving force to the drum; and
a gasket installed between the spider and the driving motor and preventing leaked washing water from being introduced to the driving motor,
wherein the driving motor comprises:
a stator having a winding part with coil wound thereon; and
a rotor including a magnet positioned at an outer side of the stator and a rotor frame having the magnet positioned therein,
wherein the rotor frame comprises:
a support member having a through hole through which the rotational shaft is inserted to be fastened; and
a side member extending from the support member in a perpendicular manner and covering an outer circumferential surface of the magnet,

wherein the spider comprises:
a circular plate having a protrusion formed at the center thereof;
a coupling recess into which the rotational shaft is fixedly coupled, and formed at an inner circumferential surface of the protrusion;
an outer circumferential surface vertically extending from an outer circumference of the circular plate toward the tub; and
a plurality of drum fastening parts protruded from the outer circumferential surface in a direction away from the rotational shaft, and fastened to the rear surface of the drum,

wherein the gasket is accommodated in an accommodating space formed by the circular plate and the outer circumferential surface of the spider,
wherein the gasket comprises:
a central wall part having a through hole into which the rotational shaft and the protrusion of the spider are inserted, and having a circular plate shape;
a side wall part vertically extending from an outer circumference of the central wall part to be in contact with the tub; and
a crease formed at an outer circumference surface of the side wall part,

wherein the driving motor is accommodated in a space formed by the central wall part and the side wall part.

2. The washing machine of claim 1 , wherein the stator is fastened to the tub by using a fastening member, and the rotor frame is fastened to the rotational shaft.

3. The washing machine of claim 1 , wherein the spider is made of aluminum.

4. The washing machine of claim 1 , wherein a sealing member is provided at the through hole of the central wall part of the gasket in order to prevent washing water from infiltrating to the driving motor.

5. The washing machine of claim 4 , wherein the sealing member has an annular shape with its section having a channel shape.

Assignees

• Jun Cha-Seung
• Min Byoung-Wook
• Lee Dong-Cheol
• Lg Electronics Inc

Inventors

• Jun Cha-Seung
• Min Byoung-Wook
• Lee Dong-Cheol

Classifications

• D06F37/04

  adapted for rotation or oscillation about a horizontal or inclined axis · CPC title

• D06F37/206 Primary

  Mounting of motor · CPC title

• D06F37/30

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

• D06F37/266

  Gaskets mounted between tub and casing around the loading opening · CPC title

• D06F37/22

  in machines with a receptacle rotating or oscillating about a horizontal axis · CPC title