Sterilization and odor removal devices and sterilization and odor removal equipment

By combining an ultrasonic module and a catalytic module inside the refrigerator, light of different wavelengths is generated and bactericidal and deodorizing substances are produced, solving the problems of bacterial growth and odor in the refrigerator and achieving multiple functional improvements.

CN115708885BActive Publication Date: 2025-10-28TCL HOME APPLIANCES (HEFEI) CO LTD
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Patent Information

Application Number
CN202211395971.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-08
Publication Date
2025-10-28
Estimated Expiration
2042-11-08

AI Technical Summary

Technical Problem

Hygiene issues in the food storage space inside the refrigerator lead to bacterial growth and odors. Existing photocatalytic sterilization technology, due to the wide bandwidth of photosensitive semiconductor materials, can only absorb ultraviolet light, resulting in poor sterilization effects.

Method used

An ultrasonic module generates light of different wavelengths within the water storage tank. A catalytic module absorbs this light, triggering a photocatalytic reaction to generate bactericidal and deodorizing substances, including hydroxyl radicals and superoxide radicals. Photosensitive semiconductor materials and an upconverter are used to convert the light wavelength to enhance the bactericidal effect.

Benefits of technology

It enhances the sterilization and deodorization effects, avoids the waste of long-wavelength light, and achieves multiple functions of sterilization, deodorization, and atomized humidification, thereby improving the hygiene of the refrigerator.

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Abstract

This application provides a sterilization and deodorization device and equipment. The sterilization and deodorization device includes a water reservoir made of a light-transmitting material; an ultrasonic module disposed inside the water reservoir, which emits ultrasonic waves to generate light of different wavelengths by acting on the water in the reservoir; and a catalytic module disposed around the periphery of the water reservoir, which absorbs light of different wavelengths transmitted through the water reservoir to generate sterilization and deodorization substances. This application utilizes the sonoluminescence of ultrasonic waves to generate light of different wavelengths, and the catalytic module absorbs the light of different wavelengths to trigger a photocatalytic reaction to generate sterilization and deodorization substances, thereby improving the sterilization and deodorization effect.
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