Refrigerator

Abstract

In the prior art, under the condition of illuminating light and improving preservation performance in the vegetable chamber of the refrigerator, a fluorescent lamp or a red LED having 660 nm wavelength is utilized and controlled by a door opening and closing detector, the light irradiates from the upper side. The invention provides a refrigerator having a structure utilizes warmth orange LED to irradiate from the back thereof, moreover, the service life of the LED is prolonged through the lightening time and the blanking time, thereby without need of the door opening and closing detector, a light irradiation device is used for lightening and blanking a plurality of LEDs individually or group-by-group control to get effective photosynthesis.

Description

technical field [0001] The present invention relates to techniques related to food storage such as vegetables in a refrigerator. Background technique [0002] Conventional refrigerators are known to irradiate vegetables with red LEDs from above to maintain freshness of vegetables, etc., to improve storability (for example, refer to Patent Document 1). In addition, there is a technique of installing a white fluorescent lamp and controlling its lighting with a switch that detects the opening and closing of a door to prevent the reduction of chlorophyll of green vegetables (for example, refer to Patent Document 2). Furthermore, there is also a report on investigation of respiration and low-temperature failure by LED irradiation with respect to the unfrozen temperature of food of 0° C. or less (for example, refer to Patent Document 3). [0003] Patent Document 1: JP-A-2002-267348 (Column 0036, Figures 1 and 2, etc.) [0004] Patent Document 2: JP-A-9-28363 (Column 006, Figure ...

AI Technical Summary

Problems solved by technology

It is necessary and necessary for such food preservation, no matter in which kind of preservation form, it is important to have the effect of preservation by light irradiation, there is no adverse effect, and the refrigerator with low power consumption is high in efficiency, and it is almost impossible to have a long life of parts Maintenance, etc. are required, but in the case of white fluorescent lamps, good effects and bad effects cannot be separated, and even if a wavelength that is good for a specific preservation effect, such as red or cyan, is selected and tested under ideal conditions, there are storage conditions that are bad, and it is not necessarily Ability to get a practical refrigerator

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