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1. (WO2018202209) POSITIONING DEVICE OF WASHING MACHINE DRUM, AND DRUM WASHING MACHINE

Pub. No.:    WO/2018/202209    International Application No.:    PCT/CN2018/086749
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Tue May 15 01:59:59 CEST 2018
IPC: D06F 37/00
Applicants: QINGDAO HAIER WASHING MACHING CO., LTD.
青岛海尔洗衣机有限公司
Inventors: YU, Mingliang
于明亮
WANG, Kaiming
王开明
ZHAI, Qingming
翟清明
NIU, Yanjuan
牛艳娟
CHEN, Tao
陈涛
WANG, Wenwen
王文文
Title: POSITIONING DEVICE OF WASHING MACHINE DRUM, AND DRUM WASHING MACHINE
Abstract:
Provided are a positioning device of a washing machine drum, and a drum washing machine, which relate to the field of clothes washing apparatuses, and aim at solving the problem in the prior art of low positioning accuracy of a washing machine drum due to being unable to accurately detect a positioning point of the washing machine drum. The positioning device of the washing machine drum comprises an optical signal emitter, an optical signal receiver and a light-transmitting hole (23) arranged on a belt pulley (2) of the washing machine, wherein the optical signal emitter and the optical signal receiver are respectively arranged on two sides of the light-transmitting hole (23), and only when the light-transmitting hole (23) is rotated around a shaft centre of the belt pulley (2) to a position where both the optical signal emitter and the optical signal receiver are aligned, can the optical signal receiver receive an optical signal sent by the optical signal emitter. Therefore, when a drum door of the positioning device is positioned, the positioning point is easier to accurately detect, thereby improving the positioning accuracy of the washing machine drum.