Waterproof fan with variable channel structure

CN224496840UActive Publication Date: 2026-07-14GUANGDONG LIANSHOU VITALITY TECH CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: GUANGDONG LIANSHOU VITALITY TECH CO LTD
Filing Date: 2025-09-18
Publication Date: 2026-07-14

AI Technical Summary

Technical Problem

Existing fans in household ironing equipment that alternates between high-temperature steam and room-temperature air cannot intelligently identify fluid temperature, making it difficult to balance protective performance and system efficiency, resulting in problems such as motor corrosion and reduced air delivery efficiency.

Method used

It adopts a variable flow channel structure, using a combination of shape memory alloy drive frame and flexible flow guide shroud to automatically adjust the flow channel according to temperature changes. At high temperatures, it forms a flow guide barrier to isolate the motor, and at normal temperatures, it restores the straight flow channel, achieving adaptive protection and efficient operation.

Benefits of technology

It significantly improves the protection performance and service life of the motor, while maintaining the high efficiency and energy-saving characteristics of the fan system, optimizing airflow organization, and balancing reliability and aerodynamic efficiency.

✦ Generated by Eureka AI based on patent content.

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Figure CN224496840U_ABST

Patent Text Reader

Abstract

The application relates to the field of fans, in particular to a waterproof fan with a variable flow channel structure. The waterproof fan comprises an inner shell, an outer shell coaxially sleeved outside the inner shell and a driving motor arranged inside the inner shell. An annular flow channel is formed between the inner shell and the outer shell, one end of the flow channel constitutes an air inlet, and the other end constitutes an air outlet; the impeller is assembled on the output shaft of the driving motor and located on the side of the air outlet; a plurality of guide vanes are uniformly distributed between the inner shell and the outer shell in the circumferential direction. The fan can change the flow channel to isolate the motor under the high-temperature steam mode through the introduction of a dynamic flow channel control mechanism, thereby greatly improving the protection reliability and the motor life; and the straight-through air duct is restored under the low-temperature air mode, thereby guaranteeing the efficient operation and energy-saving demand of the system.

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