Haier Group’s patented icemaker appliance features a unique design with a filter nested within the first reservoir to ensure the liquid not frozen on the ice maker is filtered and resupplied to the circulation system. The appliance includes a cabinet, ice mold, and a circulation system for efficient ice making. GlobalData’s report on Haier Group gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Haier Group, Contactless charging was a key innovation area identified from patents. Haier Group's grant share as of February 2024 was 52%. Grant share is based on the ratio of number of grants to total number of patents.

Filtered liquid circulation system for icemaker appliance

Source: United States Patent and Trademark Office (USPTO). Credit: Haier Group

A recently granted patent (Publication Number: US11920847B2) discloses an innovative icemaker appliance designed with a unique filtration system. The appliance includes a cabinet with an ice storage compartment, an ice mold, a first reservoir for collecting liquid from the ice mold, and a gravity deionization filter suspended above the reservoir. A circulation system with a pump and nozzle dispenses liquid onto the filter, ensuring that only the top of the filter is used for filtration. The filter consists of layers of porous filtration material and deionization resin enclosed in a casing with openings for liquid flow.

Furthermore, the icemaker appliance features additional components such as a second reservoir for liquid circulation, a cleanout line with a valve for maintenance, and a sealed cooling system with an evaporator positioned at the ice mold. The appliance's design allows for efficient filtration of liquid used in ice production, ensuring high-quality ice output. With a focus on vertical filtration from top to bottom, the gravity deionization filter plays a crucial role in enhancing the overall performance of the appliance. The inclusion of a removable grate, collection tray, and return line further adds to the functionality and ease of use of the icemaker appliance, making it a promising innovation in the field of ice-making technology.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.