According to GlobalData’s company profile on Haier Electronics Group, was a key innovation area identified from patents. Haier Electronics Group's grant share as of February 2024 was 37%. Grant share is based on the ratio of number of grants to total number of patents.

Rotatable observation window in laundry treatment device door assembly

The granted patent (Publication Number: US11920284B2) discloses a door assembly for a laundry treatment device. The assembly includes an outer frame, an inner frame, and an observation window sandwiched between the two frames. An installation assembly enables the observation window to rotate between the frames, with a fixing member and guide assembly facilitating the movement. The guide assembly consists of rolling members, limiting grooves, and annular guide grooves to ensure smooth rotation of the observation window.

Furthermore, the patent details additional features such as the use of balls as rolling members, arc-shaped concave grooves as limiting grooves, and the incorporation of a ring-shaped reinforcement structure on the inner frame. A locking assembly is also included, featuring a limiting post, guide groove, and capture hole for secure closure of the door assembly. The limiting post can retract into the capture hole and slide along a slide groove in the reinforcement structure, providing a reliable locking mechanism for the door assembly of the laundry treatment device.

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