Storage device including ultraviolet illumination

• US 9,034,271 B2
• Filed: 08/28/2013
• Issued: 05/19/2015
• Est. Priority Date: 08/28/2012
• Status: Active Grant

• Current Assignee: Sensor Electronic Technology Incorporated (Seoul Semiconductor Co., Ltd.)
• Original Assignee: Sensor Electronic Technology Incorporated (Seoul Semiconductor Co., Ltd.)
• Inventors: Shur, Michael, Shatalov, Maxim, Bettles, Timothy James, Bilenko, Yuri, Smetona, Saulius, Dobrinsky, Alexander, Gaska, Remigijus
• Primary Examiner(s): Mayekar, Kishor
• Application Number:
  US14/012,682
• Publication Number:
  US 20140060095A1
• Time in Patent Office: 629 Days
• Field of Search: 422/186.3
• US Class Current: 422/186.3
• CPC Class Codes: A61L 2/10 Ultraviolet radiation
• CPC Class Codes: A61L 2202/14 Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
• CPC Class Codes: A61L 2202/21 Pharmaceuticals, e.g. medicaments, artificial body parts
• CPC Class Codes: F25D 17/042 Air treating means within refrigerated spaces air conditioning in general F24F
• CPC Class Codes: F25D 2317/0417 using an UV-lamp
• CPC Class Codes: F25D 27/005 combined with control means

Abstract

Ultraviolet radiation is directed within an area. Items located within the area and/or one or more conditions of the area are monitored over a period of time. Based on the monitoring, ultraviolet radiation sources are controlled by adjusting a direction, an intensity, a pattern, and/or a spectral power of the ultraviolet radiation generated by the ultraviolet radiation source. Adjustments to the ultraviolet radiation source(s) can correspond to one of a plurality of selectable operating configurations including a storage life preservation operating configuration, a disinfection operating configuration, and an ethylene decomposition operating configuration.

Claims

1. A system comprising:

at least one ultraviolet radiation source configured to generate ultraviolet radiation directed within a storage area; and

a control system for controlling ultraviolet radiation generated by the at least one ultraviolet radiation source using one of a plurality of selectable operating configurations and a set of current conditions of at least one of;

the storage area or a set of items located in the storage area, wherein the controlling includes adjusting at least one of;

a direction, an intensity, a pattern, or a spectral power of ultraviolet radiation directed within the storage area based on the set of current conditions of the storage area and a set of target conditions for at least one of;

the storage area or a set of items located in the storage area corresponding to a currently selected one of the plurality of selectable operating configurations, and wherein the plurality of selectable operating configurations include;

a storage life preservation operating configuration, a disinfection operating configuration, and an ethylene decomposition operating configuration, wherein the storage life preservation operating configuration is configured to increase a storage lifespan of the set of items, the disinfection operating configuration is configured to sterilize microorganisms present on the set of items, and the ethylene decomposition operating configuration is configured to remove ethylene emitted from the set of items.

2. The system of claim 1, further comprising a monitoring system for monitoring at least one of:

a set of current biological conditions of the storage area or an operating condition of the at least one ultraviolet radiation source.

3. The system of claim 2, further comprising at least one of:

an optical sensor, a chemical sensor, or a mechanical sensor for providing the monitoring system data corresponding to at least one of the set of current conditions.

4. The system of claim 1, wherein the each of the plurality of selectable operational configurations includes a unique combination of:

a target intensity, a target peak wavelength, and a target pattern for the ultraviolet radiation generated by the at least one ultraviolet radiation source, wherein the target pattern includes at least one of;

a duration or a duty cycle for a plurality of ultraviolet illuminations.

5. The system of claim 1, wherein the storage area further comprises:

an inner ultraviolet radiation transparent enclosure configured to contain a plurality of stored items; and

an outer ultraviolet radiation reflective wall surrounding the inner ultraviolet radiation transparent enclosure.

6. The system of claim 5, further comprising a plurality of ultraviolet radiation transparent shelves at least partially located within the inner ultraviolet radiation transparent enclosure.

7. The system of claim 6, wherein each of the plurality of ultraviolet radiation transparent shelves includes a plurality of dimensioned depressions for supporting the plurality of stored items.

8. The system of claim 6, wherein each of the plurality of ultraviolet radiation transparent shelves includes at least one ultraviolet radiation source.

9. The system of claim 5, further comprising a plurality of sub-compartments within the inner ultraviolet radiation transparent enclosure, wherein a first sub-compartment includes a first operating configuration of the plurality of selectable operating configurations and a second sub-compartment includes a second operating configuration of the plurality of selectable operating configurations distinct from the first operating configuration.

10. The system of claim 1, wherein the storage area is a storage area of a refrigeration device configured to store at least one refrigerated item.

11. The system of claim 1, further comprising:

a set of visible and infrared radiation sources; and

a feedback component including a set of sensing devices configured to sense the set of current conditions, the set of current conditions including a visual attribute of the set of items and a set of chemical attributes of the set of items, wherein the visual attribute and the set of chemical attributes are used by the control system to control the at least one ultraviolet radiation source and the set of visible and infrared radiation sources, and wherein the set of chemical attributes include a presence of ethylene gas.

12. A food storage device comprising:

a storage area configured to store at least one perishable food item;

at least one ultraviolet radiation source configured to generate ultraviolet radiation directed within the storage area;

a monitoring system for monitoring a set of current conditions of at least one of;

the storage area or a set of items located in the storage area, wherein the set of current conditions includes a set of current biological conditions of the storage area and an operating condition of the at least one ultraviolet radiation source; and

a control system for controlling the ultraviolet radiation generated by the at least one ultraviolet radiation source using one of a plurality of selectable operating configurations and the set of current conditions, wherein the controlling includes adjusting at least one of;

a direction, an intensity, a pattern, or a spectral power of ultraviolet radiation directed within the storage area based on the set of current conditions and a set of target conditions for at least one of;

the storage area or a set of items located in the storage area corresponding to a currently selected one of the plurality of selectable operating configurations, and wherein the plurality of selectable operating configurations include;

a storage life preservation operating configuration, a disinfection operating configuration, and an ethylene decomposition operating configuration, wherein the storage life preservation operating configuration is configured to increase a storage lifespan of the set of items, the disinfection operating configuration is configured to sterilize microorganisms present on the set of items, and the ethylene decomposition operating configuration is configured to remove ethylene emitted from the set of items.

13. The storage device of claim 12, further comprising at least one of:

an optical sensor, a chemical sensor, or a mechanical sensor for providing the monitoring system data corresponding to at least one of the set of current conditions.

14. The storage device of claim 12, wherein each of the plurality of selectable operational configurations includes a unique combination of:

a target intensity, a target peak wavelength, and a target pattern for the ultraviolet radiation generated by the at least one ultraviolet radiation source.

15. The storage device of claim 12, wherein the control system is configured to turn off all of the at least one ultraviolet radiation source in response to the storage area being opened.

16. The storage device of claim 12, wherein the storage area further comprises:

an inner ultraviolet radiation transparent enclosure configured to contain a plurality of perishable food items; and

an outer ultraviolet radiation reflective wall surrounding the inner ultraviolet radiation transparent enclosure.

17. The storage device of claim 16, further comprising a plurality of ultraviolet radiation transparent shelves at least partially located within the inner ultraviolet radiation transparent enclosure, wherein the plurality of ultraviolet radiation transparent shelves include dimensioned depressions for supporting the plurality of perishable food items.

18. The storage device of claim 17, wherein each of the plurality of ultraviolet radiation transparent shelves includes at least one ultraviolet radiation source.

19. A refrigeration device comprising:

a storage area configured to store at least one refrigerated item;

a component configured to control at least one environmental condition of the storage area, wherein the at least one environmental condition includes at least one of;

a temperature, a humidity, a gas convection, or a fluid convection;

at least one ultraviolet radiation source configured to generate ultraviolet radiation directed within the storage area; and

a monitoring and control system for managing the storage area by performing a method comprising;

monitoring a set of current conditions of at least one of;

the storage area or a set of items located in the storage area; and

controlling ultraviolet radiation generated by the at least one ultraviolet radiation source using one of a plurality of selectable operating configurations and the set of current conditions, wherein the controlling includes adjusting at least one of;

a direction, an intensity, a pattern, or a spectral power of ultraviolet radiation directed within the storage area based on the set of current conditions of the storage area and a set of target conditions for at least one of;

the storage area or a set of items located in the storage area corresponding to a currently selected one of the plurality of selectable operating configurations, and wherein the plurality of selectable operating configurations include;

a storage life preservation operating configuration, a disinfection operating configuration, and an ethylene decomposition operating configuration, wherein the storage life preservation operating configuration is configured to increase a storage lifespan of the set of items, the disinfection operating configuration is configured to sterilize microorganisms present on the set of items, and the ethylene decomposition operating configuration is configured to remove ethylene emitted from the set of items.

20. The device of claim 19, further comprising at least one of:

an optical sensor, a chemical sensor, or a mechanical sensor for providing the monitoring and control system data corresponding to at least one of the set of current conditions.

21. The device of claim 19, wherein each of the plurality of selectable operational configurations includes a unique combination of:

a target intensity, a target peak wavelength, and a target pattern for the ultraviolet radiation generated by the at least one ultraviolet radiation source.

22. The device of claim 19, wherein the storage area further comprises:

an inner ultraviolet radiation transparent enclosure configured to contain a plurality of refrigerated items; and

an outer ultraviolet radiation reflective wall surrounding the inner ultraviolet radiation transparent enclosure.

23. The device of claim 19, wherein the component configured to control is a freezer, and wherein the at least one refrigerated item is a frozen item.