US 11,814,776 B2
Pump motor and washing machine having the same
Hyun-woo Song, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on May 13, 2022, as Appl. No. 17/663,356.
Application 17/663,356 is a division of application No. 17/304,833, filed on Jun. 25, 2021, granted, now 11,332,875.
Application 17/304,833 is a continuation of application No. 16/780,675, filed on Feb. 3, 2020, granted, now 11,466,392.
Application 16/780,675 is a continuation of application No. 15/767,118, granted, now 10,550,505, issued on Feb. 4, 2020, previously published as PCT/KR2016/015162, filed on Dec. 23, 2016.
Claims priority of application No. 10-2015-0186745 (KR), filed on Dec. 24, 2015.
Prior Publication US 2022/0275562 A1, Sep. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. D06F 39/08 (2006.01); D06F 37/04 (2006.01); D06F 37/20 (2006.01); F04D 13/06 (2006.01); F04D 29/08 (2006.01); D06F 37/10 (2006.01); D06F 37/42 (2006.01)
CPC D06F 39/085 (2013.01) [D06F 37/04 (2013.01); D06F 37/10 (2013.01); D06F 37/20 (2013.01); D06F 37/206 (2013.01); D06F 39/08 (2013.01); F04D 13/06 (2013.01); F04D 13/0693 (2013.01); F04D 29/086 (2013.01); D06F 37/42 (2013.01); D06F 39/081 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A washing machine comprising:
a main body;
a water tub provided inside the main body to store washing water;
a rotary tub rotatably disposed inside the water tub and configured to accommodate laundry; and
a drain device configured to discharge the washing water that is accommodated in the water tub,
wherein the drain device comprises:
a pump;
a first drainage pipe connecting the water tub and the pump; and
a second drainage pipe to discharge the washing water past the pump to an outside of the main body,
wherein the pump comprises a pump motor, and
wherein the pump motor comprises:
a case; and
a socket part,
wherein the socket part includes:
a terminal part; and
a body part around the terminal part,
wherein the body part includes a plurality of drain holes provided in a lower portion of the body part.