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Refrigerator

A technology for refrigerators and storage rooms, applied in the field of refrigerators, can solve the problems of temperature rise, easy mixing of miscellaneous bacteria, etc.

Active Publication Date: 2008-05-07
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in conventional refrigerators, since the temperature switching chamber 4006 is composed of a drawer-type box, when fresh foods such as meat and fish come into contact with the air outside the refrigerator when the door is opened and closed, miscellaneous bacteria are easily mixed in and attached to the food. superior
Furthermore, the temperature rise when the door is opened and closed is the main cause of food deterioration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0048] Fig. 1 is a side sectional view of a refrigerator according to Embodiment 1 of the present invention.

[0049] In FIG. 1 , a refrigerator main body (hereinafter simply referred to as the main body) 1 is equipped with an inner case 22 formed by vacuum-molding a resin body such as ABS and an outer case 23 made of a metal material such as a pre-coated steel plate. The insulation wall made of foam insulation 24. For the foam heat insulator 24, rigid urethane foam, phenol foam, styrene foam, etc. are used, for example. Using hydrocarbon-based cyclopentane as a foaming material is better from the viewpoint of preventing global warming.

[0050] In addition, in the space constituted by the inner case 22 and the outer case 23 before the foam heat insulator 24 is foamed, the vacuum heat insulating material 25 is adhered in close contact with an adhesive member not shown on the outer case side. Moreover, since the vacuum heat insulating material 25 is arrange|positioned in the ...

Embodiment approach 2

[0077] Fig. 2 shows a side sectional view of a refrigerator according to Embodiment 2 of the present invention.

[0078] In FIG. 2 , the light source 213 is installed in the switching chamber 206. In addition, the machine room 212, which houses the main components of the refrigeration cycle such as the compressor 216 and the unshown condenser, is installed on a side other than the back side of the freezing room 203. Place the backside of the uppermost stage of the refrigerator compartment 202 .

[0079] Conventionally, the machine compartment 212 is located behind the freezer compartment 203 which is the lowermost part of the main body 201. Therefore, the volume of the freezer compartment 203 is reduced. For frozen foods that cannot be accommodated, the switching compartment is often set to be frozen and used as a substitute for the freezer compartment. . By arranging the machine room 212 on the back of the uppermost part of the refrigerator room 202 which cannot be effective...

Embodiment approach 3

[0083] 3 is a side cross-sectional view of a refrigerator according to Embodiment 3 of the present invention, and FIG. 4 is a cross-sectional view of a light source portion provided in a switch chamber according to Embodiment 3 of the present invention. In addition, FIG. 5 is a graph showing the relationship between the amount of ultraviolet LED irradiation and the number of viable bacteria when fresh salmon according to Embodiment 3 of the present invention were stored for 7 days.

[0084]In the present embodiment, machine compartment 312 housing main components of the refrigeration cycle such as compressor 316 and a not-shown condenser is provided on the uppermost rear of refrigerator compartment 302 other than the rear of freezer compartment 303 . Therefore, a part of the conventional machine room 312 can be utilized as a freezing space. Therefore, the effective compartment volume of freezer compartment 303 can be enlarged without changing the external dimensions. Since th...

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Abstract

A refrigerator characterized by comprising storage case (35), as a partitioned portion different in temperature, placed inside a cold storage (2), wherein a light source (13) composed of an LED having a wavelength in a ultraviolet region is installed to thereby be able to inactivate the proliferative function of microorganisms deposited on the wall surfaces inside the storage case (35) and the surfaces of stored articles, whereby the hygienic conditions inside a switching chamber (6) can be maintained, discoloring, foul odor and slime on the surfaces of the stored articles caused by food microorganisms can be delayed to thereby able to always keep the interior of the storage case (35) clean and improve preservability.

Description

technical field [0001] The present invention relates to a refrigerator having a storage compartment in which storage stability is further improved by LEDs having wavelengths including ultraviolet regions. Background technique [0002] Due to the increasing number of women entering the society, many housewives prefer to use the micro-freezing method because they do not need to spend the time of thawing like cryopreservation, the convenience of cooking immediately, and the freshness maintenance brought by micro-frozen storage. The method to save it at the temperature near the freezing point of the food. However, at these storage temperatures, it is impossible to completely suppress the growth of microorganisms and molds at these storage temperatures. When storing in a state where various bacteria, etc. are attached depending on the stored food, not only will the storage room be filled with odor, And the bad smell will be transferred to other stored goods, and it will also bec...

Claims

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Application Information

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IPC IPC(8): F25D11/02F25D19/00F25D23/00
CPCF25D27/00F25D17/042
Inventor 小岛淑子芦田弥惠广田起子井下美桃子
Owner PANASONIC CORP
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