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公开(公告)号：US10538871B2
公开(公告)日：2020-01-21
申请号：US15792600
申请日：2017-10-24
摘要： Disclosed herein is a washing machine capable of suppressing noise during spin-drying caused by a pressure difference in a tub. The washing machine may include a case comprising a laundry loading/unloading opening through which laundry is introduced, a door mounted at the case to open or close the laundry loading/unloading opening, a tub disposed inside the case, a drum rotatably disposed inside the tub, and an air inflow channel configured to guide air to flow toward a central portion of the drum in which a pressure decreases while the drum rotates.
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公开(公告)号：US11131051B2
公开(公告)日：2021-09-28
申请号：US15775976
申请日：2016-11-11
IPC分类号： D06F37/22 , F16H55/36 , F16H55/40 , D06F37/20 , D06F37/04 , D06F37/30 , F16H7/02 , D06F58/08 , D06F37/36
摘要： By improving the rigidity of a pulley while suppressing a weight of the pulley from increasing, excessive noises due to resonance can be reduced. A washing machine 1 includes a drum 9 rotatably disposed in the water tub 5. The washing machine 1 has a motor to rotationally drive a pulley 20, which is fixed to the drum 9, via an endless belt 13. The pulley 20 has a plurality of arms 23 radially extend from the boss 22 to support an outer wheel 21. The arm 23 has a variable cross-sectional portion 24 in which a section modulus against bending in an axial direction gradually decreases from the boss 22 to the outer wheel 21.
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公开(公告)号：US10995444B2
公开(公告)日：2021-05-04
申请号：US15777513
申请日：2016-11-08
发明人： Jung Hee Lee , Takahiro Nakashima , Yoshinari Shimada , Kazushi Mori , Jeong Hoon Kang , Min Sung Kim , Dong Ha Jung , Kwan Woo Hong
摘要： The washing machine of the present disclosure includes an improved pulley for reducing the noise generated in the pulley. When the shaft is inserted into the shaft insertion hole, at least a part of the shaft is closely contacted with the shaft insertion hole to minimize the tolerance between the shaft and the shaft insertion hole, and the rotation shaft of the pulley and the center axis of the shafts may be made to coincide with each other, so that the noise generated by the rotation of the pulley can be effectively reduced. In addition, the spoke of the pulley includes the curved portion, thereby reducing the friction with the air and effectively reducing noise due to friction with air.
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公开(公告)号：US20180142398A1
公开(公告)日：2018-05-24
申请号：US15792600
申请日：2017-10-24
CPC分类号： D06F37/02 , D06F23/02 , D06F37/267 , D06F37/28 , D06F2232/08
摘要： Disclosed herein is a washing machine capable of suppressing noise during spin-drying caused by a pressure difference in a tub. The washing machine may include a case comprising a laundry loading/unloading opening through which laundry is introduced, a door mounted at the case to open or close the laundry loading/unloading opening, a tub disposed inside the case, a drum rotatably disposed inside the tub, and an air inflow channel configured to guide air to flow toward a central portion of the drum in which a pressure decreases while the drum rotates.
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