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refrigerator

A refrigerator and storage box technology, applied in lighting and heating equipment, applications, household appliances, etc., can solve the problems of low efficiency and waste of electricity, and achieve the effect of improving energy saving and restraining electricity

Inactive Publication Date: 2016-04-13
HITACHI APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Therefore, for example, in refrigerators where no organic gas or ozone components are produced, or when there is little organic gas and / or ozone components, it is not necessary to activate the photocatalyst, but the light-emitting diode emits the same light. Waste unnecessary electricity, very inefficient

Method used

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Embodiment 1

[0027] Next, the first embodiment of the present invention will be described, first, while referring to figure 1 and figure 2 , while explaining the structure of the refrigerator. also, figure 1 is a central longitudinal sectional view of the refrigerator, figure 2 for figure 1 It is a sectional perspective view of the lowermost space part of the refrigerator compartment shown.

[0028] As is apparent from these drawings, the refrigerator includes a refrigerator main body 1 , and doors 6 , 7 , 9 , and 10 provided on the front of the refrigerator main body. The main body of the refrigerator 1 is composed of an outer box 11 made of steel plate, an inner box 12 made of resin, and a urethane foam insulation material 13 and / or a hollow insulation material (not shown) filled between the outer box 11 and the inner box 12. A plurality of storage compartments are formed in order from the top of the drawing to the refrigerator compartment 2 , the freezer compartment 3 , the freez...

Embodiment 2

[0088] Next, use Figure 8 The second embodiment of the present invention will be described, since Figure 8 and Figure 7 There are many repeated parts, so the repeated parts will not be explained.

[0089] The semiconductor carbon dioxide sensor 45 used in the refrigerator described in the first embodiment has a characteristic that the sensitivity of the sensor changes and its electrical output changes depending on the temperature or humidity around the sensor.

[0090] Therefore, if Figure 7 As shown, when the temperature or humidity changes, even if the carbon dioxide concentration increases, the first measured value Va approaches the second measured value Vb, and it may be erroneously detected that the carbon dioxide concentration does not increase.

[0091] Here, a method for accurately measuring the carbon dioxide concentration in the airtight storage room 24 will be described even when the ambient temperature or humidity changes. here, in Figure 8 In the process...

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Abstract

The present invention provides a refrigerator capable of reducing consumption power by efficiently controlling a lighting unit which activates photo catalyst. The present invention is provided to install a gas sensor which detects gas concentration of object gas processed by the photo catalyst, thereby determining a state of a storage room by using a detected value of the gas sensor. When a value of the gas concentration is under the predetermined value, the lighting unit is limited or stopped for activating the photo catalyst. The present invention is provided to efficiently control the lighting unit, thereby saving energy by blocking unnecessary power usage. [Reference numerals] (a) Opening state of a refrigerator door; (AA) Opening; (b) Operate a negative pressure pump; (BB) Closing; (c) Current flow state of an LED; (CC,EE) On; (d) CO_2 concentration (ppm) in a sealed storage room; (DD,FF) Off; (e) Electrical output of a C0_2 sensor; (GG) Time (min)

Description

technical field [0001] The invention relates to a refrigerator for storing food and drinking water, in particular to a refrigerator provided with a photocatalyst in a storage room. Background technique [0002] In recent years, along with the increase in the capacity of refrigerators, various foods have been accommodated in refrigerators, and attention to hygiene, sterilization, and deodorization in refrigerators has also increased. For example, as a structure for eliminating bacteria and deodorizing in a refrigerator, there is known a structure in which a photocatalyst having a function of eliminating bacteria and deodorizing is arranged in a cold air duct to remove odor and bacteria in circulating cold air. [0003] For example, Japanese Unexamined Patent Application Publication No. 2003-322460 (Patent Document 1) describes a structure in which an ultraviolet light-emitting diode and a photodeodorizing catalyst such as titanium dioxide are arranged in a cold air duct. In ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D23/00F25D29/00
CPCA61L9/205F24F2110/70F25D17/042F25D27/005F25D2317/0415F25D2317/0417F25D2317/043F25D2500/04
Inventor 小川真申池田拓真
Owner HITACHI APPLIANCES INC