Portable fan device with optional filter, fragrance, or ultraviolet module

Abstract

This invention relates to a portable fan device that integrates one or more modular components such as a filter module, a fragrance module, and a UV module. It provides users with clean, comfortable airflow with odor control through air intake filtration, fragrance diffusion at the air outlet or its surroundings, and airflow sterilization via a UV module within the air duct. All three modules are replaceable and can be used individually or in combination as needed. Suitable for neck-mounted, handheld, and waist-mounted personal fans, it possesses high practicality and market value. The fragrance module is designed with special consideration for patent layout and technical feasibility. It can be placed on the outer edge of the air outlet, at the air inlet, or in the indirect airflow field generated by the operation of the fan. Through the wind pressure difference and airflow disturbance effect, the fragrance can be naturally diffused into the surrounding air, avoiding the air duct diffusion design that may involve other patents if placed in the main air duct.

Claims

1. A portable fan device, characterized in that it comprises a fan body having an air inlet, an air outlet, and an interior air duct; a filter module disposed at the air inlet of the fan body for filtering suspended particles and pollutants in the air; a fragrance module disposed on the outer shell, the periphery of the air outlet, or the edge area of ​​the air inlet of the fan body, wherein, when the fan is running, the fragrance substances are slowly volatilized and diffused into the surrounding air by airflow, pressure difference changes, or air field disturbances to achieve a fragrance effect; and since the fragrance module is not disposed inside the air duct, fragrance residue can be avoided from interfering with the airflow or contaminating the filter, while maintaining structural independence and convenient module replacement; and an ultraviolet module disposed inside the air duct of the fan body for using ultraviolet light to perform antibacterial treatment on the airflow.

2. The fan device as described in claim 1, wherein the fan is a portable device, including a neck-mounted, handheld, or waist-mounted fan.

3. The fan device as described in claim 1, wherein the module is a replaceable module, and the user can install any one or more modules individually or in combination as needed.

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