Washing machine

Abstract

A washing machine having a stator mounted to a bearing housing. The stator including a magnetic core and upper and lower insulating members to cover upper and lower surfaces of the magnetic core, respectively. At least one of the upper and lower insulating members has a ring-shaped flange, which extends inward from the inner circumferential surface thereof. The flange has a plurality of first mounting holes and the bearing housing has a plurality of second mounting holes corresponding to the first mounting holes, respectively, whereby the stator is bolted to the bearing housing. The flange has a positioning protrusion extending upward, and the bearing housing has a positioning groove formed at a rim thereof such that the positioning protrusion is inserted into the positioning groove. The flange is positioned at the bearing housing while the first mounting holes of the flange are aligned with the second mounting holes of the bearing housing, respectively.

1 . A washing machine comprising: 
 a water tub;    a bearing housing fixed to the water tub; and    a stator mounted to the bearing housing, wherein 
 the stator comprises a magnetic core and an insulating member that covers the magnetic core, and  
 the bearing housing has a positioning groove, and the insulating member has a positioning protrusion, which is inserted into the positioning groove of the bearing housing such that the stator is positioned at the bearing housing.  
   
   
   
       2 . The washing machine according to  claim 1 , wherein the insulating member has a flange, by which the stator is mounted to the bearing housing.  
   
   
       3 . The washing machine according to  claim 2 , wherein the positioning groove is provided at a rim of the bearing housing, and the positioning protrusion extends from the flange at a position corresponding to the rim of the bearing housing.  
   
   
       4 . The washing machine according to  claim 3 , wherein the insulating member comprises an upper insulating member and a lower insulating member to cover the upper and lower surfaces of the magnetic core, respectively, and the flange extends inward from the inner circumferential surface of at least one of the upper and lower insulating members, the flange being in the shape of a ring.  
   
   
       5 . The washing machine according to  claim 4 , wherein the flange has a plurality of first mounting holes, and the bearing housing has a plurality of second mounting holes corresponding to the first mounting holes, respectively, such that the stator is bolted to the bearing housing and the positioning protrusion is inserted in the positioning groove.  
   
   
       6 . The washing machine according to  claim 3 , wherein the flange has a ring-shaped protrusion such that the ring-shaped protrusion is fitted onto the rim of the bearing housing, and the positioning protrusion extends inward from the ring-shaped protrusion.  
   
   
       7 . The washing machine according to  claim 5 , wherein the flange is provided at the upper insulating member with a predetermined thickness, and the stator is mounted to the bearing housing through the upper insulating member.  
   
   
       8 . The washing machine according to  claim 5 , wherein both the upper and lower insulating members include the flange, and the stator is mounted to the bearing housing through the upper and lower insulating members.  
   
   
       9 . The washing machine according to  claim 8 , wherein the stator further comprises a plurality of supporting pipes connecting the first mounting holes of the upper insulating member and the first mounting holes of the lower insulating member, respectively, and the stator is mounted to the bearing housing by a plurality of mounting bolts, which are supported by the supporting pipes, respectively.  
   
   
       10 . A washing machine comprising: 
 a water tub;    a rotary tub disposed in the water tub;    a bearing housing mounted to an outer surface of the water tub;    a rotary shaft mounted to the rotary tub and extending through the bearing housing;    a stator mounted to the bearing housing; and a rotor mounted to the rotary shaft so as to be disposed opposite to the stator, wherein    the stator comprises: 
 a magnetic core having an upper surface and a lower surface;  
   and 
 an upper insulating member and a lower insulating member to cover the upper and lower surfaces of the magnetic core, respectively, and wherein  
   at least one of the upper and lower insulating members has a ring-shaped flange, which extends inward from the inner circumferential surface thereof, and the stator is mounted to the bearing housing through the flange.    
   
   
       11 . The washing machine according to  claim 10 , wherein the flange has a plurality of first mounting holes, which are disposed to be spaced a predetermined distance from each other, and the bearing housing has a plurality of second mounting holes corresponding to the first mounting holes, respectively, and the stator is bolted to the bearing housing.  
   
   
       12 . The washing machine according to  claim 11 , wherein the flange has a positioning protrusion, and the bearing housing has a rim and a positioning groove provided at a predetermined position of the rim thereof such that the positioning protrusion is inserted into the positioning groove, and the flange is positioned at the bearing housing such that the first mounting holes of the flange are aligned with the second mounting holes of the bearing housing, respectively.  
   
   
       13 . The washing machine according to  claim 10 , wherein the flange is provided at the upper insulating member with a predetermined thickness, and the stator is mounted to the bearing housing through the upper insulating member.  
   
   
       14 . The washing machine according to  claim 10 , wherein both the upper and lower insulating members have the ring-shaped flange, and the stator is mounted to the bearing housing through the upper and lower insulating members.