Radio frequency drying apparatus and method

By setting multiple electrodes in the drying chamber and using a processor to control the radio frequency field mode, the problems of uneven drying and radio frequency leakage are solved, achieving uniform, efficient and safe radio frequency drying.

CN122295494APending Publication Date: 2026-06-26SAMSUNG ELECTRONICS CO LTD
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Patent Information

Application Number
CN202480075910.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-12-19
Filing Date
2024-12-10
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing dryers often cause deformation and excessive noise when using hot air to dry clothes, while radio frequency dryers have safety issues such as uneven drying and radio frequency leakage.

Method used

By employing radio frequency drying equipment, multiple electrodes are placed inside the drying chamber. The activation and deactivation of the electrodes are controlled by a processor to form alternating radio frequency field modes. Combined with a matching unit and a sensor for impedance matching, uniform distribution and safety of the radio frequency field are achieved.

Benefits of technology

This achieves uniformity and efficiency in the radio frequency drying process without the need for moving parts, reduces noise, and improves safety.

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Abstract

A radio frequency (RF) drying apparatus is provided. The RF drying apparatus includes: a drying chamber including a grounding body surrounding N (N > = 3) plurality of electrodes for generating a radio frequency field, and a drum electrically insulated from the plurality of electrodes; and a processor configured to, in an active mode, periodically select and activate M (M < N) electrodes from among the N electrodes, and deactivate one or more remaining (N-M) electrodes, and select the M (M < N) electrodes to activate to generate an AC signal, and deactivate the (N-M) electrodes to be inactive to not generate the AC signal; and forming an RF field inside the drying chamber based on the generated AC signal.
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