Storage system and ultraviolet irradiation method

The storage system addresses food deterioration by using a detection and control mechanism to selectively irradiate ultraviolet light on non-food areas, ensuring effective sterilization without harming food items.

JP2026055248APending Publication Date: 2026-03-31HITACHI GLOBAL LIFE SOLUTIONS INC
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-09-18
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing storage systems that irradiate ultraviolet rays indiscriminately on food items, such as refrigerators, lead to food deterioration.

Method used

A storage system with a detection device to identify the location of food items, a control device to selectively irradiate ultraviolet light only on non-food areas, and an irradiation device to avoid direct exposure to food, using photocatalysts for sterilization and antibacterial effects.

Benefits of technology

The system effectively suppresses food deterioration by minimizing direct ultraviolet exposure to food items while maintaining hygiene through selective irradiation and photocatalytic sterilization.

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Abstract

To provide a storage system that can suppress food deterioration caused by ultraviolet irradiation. [Solution] The storage system 1 comprises a storage unit 10 comprising a storage chamber 11 for storing food F and a placement member arranged in the storage chamber 11 on which the food F is placed, a detection device 20 for detecting the placement area of ​​the food F stored in the storage chamber 11 on the aforementioned placement member, an irradiation device 30 for irradiating ultraviolet light, and a control device 40 comprising a first control unit 42 for controlling the irradiation device 30 to irradiate ultraviolet light to areas other than the placement area of ​​the food F detected by the detection device 20.
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Citation Information

Patent Citations

  • Refrigerator

    JP2003343971A