US 12,253,874 B2
Household appliance knob
Zhaojia Xie, Foshan (CN); Yunfeng Wang, Foshan (CN); Shufeng Huang, Foshan (CN); Deyong Jiang, Foshan (CN); Taiyang Jiang, Foshan (CN); and Liang Zheng, Foshan (CN)
Assigned to FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING CO., LTD., Foshan (CN)
Appl. No. 17/772,901
Filed by FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING CO., LTD., Foshan (CN)
PCT Filed Nov. 30, 2020, PCT No. PCT/CN2020/132938
§ 371(c)(1), (2) Date Apr. 28, 2022,
PCT Pub. No. WO2021/143377, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 202010060482.5 (CN), filed on Jan. 19, 2020; application No. 202010060522.6 (CN), filed on Jan. 19, 2020; application No. 202010062899.5 (CN), filed on Jan. 19, 2020; application No. 202010062913.1 (CN), filed on Jan. 19, 2020; application No. 202010062920.1 (CN), filed on Jan. 19, 2020; and application No. 202010062922.0 (CN), filed on Jan. 19, 2020.
Prior Publication US 2022/0342437 A1, Oct. 27, 2022
Int. Cl. G05G 1/10 (2006.01)
CPC G05G 1/10 (2013.01) 15 Claims
OG exemplary drawing
 
1. A knob comprising:
a first assembly including a first sensing element, the first sensing element having a hollow structure;
a second assembly sleeved at the first assembly and including a second sensing element; and
an attachment element disposed within the hollow structure of the first sensing element;
wherein:
the first sensing element is configured to, when the second assembly rotates around a rotation axis, be fixed relative to the rotation axis;
the second sensing element is configured to, when the second assembly rotates around the rotation axis, move around the rotation axis;
the first assembly and the second assembly are conductive elements;
an insulation element is arranged between the second assembly and the first assembly;
the second assembly includes a conductive ring with the rotation axis as a central axis; and
the second sensing element is a conductive block arranged at an inner wall of the conductive ring.