Active Oxygen Supply Apparatus for Shadow Area Sterilization
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Solution Overview
Problem
Conventional sterilization apparatuses using ultraviolet rays and ozone supply systems become larger as the size of the processed object increases, making it difficult to effectively sterilize all areas, including shadow regions, without enlarging the apparatus.
Innovation Solution
An active oxygen supply apparatus with a casing containing plasma generating devices and an ultraviolet light source that generates induced flows with ozone, which is then irradiated to produce active oxygen, and a shielding plate to direct this active oxygen outside the casing for efficient sterilization without increasing the apparatus size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the sterilization apparatus is enlarged to accommodate larger processed objects, then the sterilization coverage is improved, but the apparatus size increases
Solution Approach 1:
The sterilization function is segmented into two independent systems: a compact active oxygen generation unit (with UV lamp and ozone generator) and a separate airflow distribution system (with fans and nozzles). This allows the generation unit to remain small while the sterilization coverage is extended through the airflow distribution mechanism that projects active oxygen onto the processed object surface.
Solution Approach 2:
The invention transitions from direct contact sterilization (where the UV lamp must be close to the object surface) to projected sterilization (where active oxygen is generated and then transported via airflow to the target area). This dimensional change in the sterilization mechanism allows coverage of larger areas without proportionally increasing the apparatus size.
2Reliability
If ultraviolet rays are used for sterilization, then sterilization effectiveness is improved, but shadow areas cannot be sterilized
Solution Approach 1:
Active oxygen serves as an intermediary substance that transfers the sterilization function from the UV lamp to shadow areas. The UV lamp generates ozone, which is converted to active oxygen, and this active oxygen is then transported by airflow to reach areas not directly exposed to UV radiation, thereby extending sterilization coverage to shadow regions.
3Reliability
If ozone is generated and irradiated with ultraviolet light to produce active oxygen, then sterilization capability is improved, but the apparatus becomes more complex
Solution Approach 1:
The invention merges the ozone generation function and UV irradiation function into a single integrated active oxygen generation chamber. The ozone generator and UV lamp are positioned within the same casing, allowing them to work together in a compact configuration to produce active oxygen, thereby reducing overall system complexity compared to separate systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus effectively sterilizes the processed object by supplying active oxygen to all areas, including shadow regions, while maintaining a compact size, ensuring efficient and thorough disinfection without exposing users to ultraviolet light.
Implementation Method 1
a plurality of plasma generating devices provided in an inside of the casing and configured to generate an induced flow containing ozone
Implementation Method 2
an ultraviolet light source provided in the inside of the casing and configured to irradiate the induced flow containing the ozone with ultraviolet light
Data Source
AI summary
An active oxygen supply apparatus includes a casing, a plurality of plasma generating devices provided in an inside of the casing and configured to generate an induced flow containing ozone, an ultraviolet light source provided in the inside of the casing and configured to irradiate the induced flow containing the ozone with ultraviolet light, and a shielding plate provided in the inside of the casing and configured to shield the ultraviolet light irradiated to an outside of the casing through an opening portion of the casing. An active oxygen generated by irradiating the induced flow containing the ozone with the ultraviolet light from the ultraviolet light source supplies to the outside of the casing through the opening portion of the casing.