CN100552336C - Refrigerator - Google Patents

Abstract

Be in the refrigerator of feature with the depository dish (35) that in refrigerating chamber (2) inside, has the subregion different as temperature, the light source (13) that constitutes by the LED that is provided with by wavelength with ultraviolet region, can make attached to wall in the depository dish (35) and the breeding function deactivation of the lip-deep microorganism of stock, can keep switching the inner wholesomeness in chamber (6) thus, and can postpone the variable color of the microorganisms by food and rancid, the generation of being clamminess on stock surface, so can always will remain cleaning in the depository dish (35), keeping quality is improved.

Description

Refrigerator

Technical field

The present invention relates to refrigerator, have by LED and further improved conservatory storage subregion with the wavelength that comprises ultraviolet region.

Background technology

Because of agitation such as increasing of entering society of women, because do not need as freezing preservation, to spend the time of thawing, the convenience that can cook at once, and little freezing preserve freshness down and keep the sense of feeling at ease that brings, and many housewives like using little method of freezing near the temperature preservation the chill point of food such as method.But, in these storage temperatures, under these storage temperatures, can not suppress the breeding of microorganism and mould fully, when under the different states that are attached with assorted bacterium etc., storing according to foodstuff storing, not only can in storeroom, be full of foul smell, and stench can shift to other stocks, and also becomes and rot and reason that mould produces.

Therefore, in TOHKEMY 2003-287357 communique, in the disclosed refrigerator in the past, as shown in figure 21, in refrigerator, be provided with refrigerating chamber 4002, vegetable compartment 4004, temperature switching chamber 4006, refrigerating chamber 4003 etc.And, switch the box that is provided with drawer type in the chamber 4006 in temperature, on the upper wall of temperature switching chamber 4006, ultraviolet lamp 4038 is installed.By from ultraviolet lamp 4038 irradiation ultraviolet radiations, will be attached to the degerming such as assorted bacterium on the food that is stored in the box.Like this, refrigerator in the past switches on the chamber 4006 by ultraviolet lamp 4038 being installed in temperature, has improved degerming.

But, in refrigerator in the past,, temperature constitutes by the box of drawer type because switching chamber 4006, so the fresh food of meat, fish etc. is when air outside the refrigerator contacts when door opens and closes, assorted bacterium is sneaked into and easily attached on the food.And then it is the main cause of food deterioration that the temperature when door opens and closes rises.In addition, switch the ultraviolet ray that ultraviolet lamp 4038, irradiation short wavelength are installed on the upper wall of chamber 4006 in temperature, promoted the deterioration of the resin that ultraviolet ray brings and the lipid oxidation of food.

Summary of the invention

Refrigerator of the present invention has the light source that is made of LED in the storeroom of heat insulation subregion, this LED has the wavelength that comprises ultraviolet region.

Thus, comprise that the wavelength of ultraviolet region has bactericidal effect, thereby can make attached to switching indoor wall or the breeding function deactivation of the lip-deep microorganism of stock.Thereby, can postpone variable color and the generation of being clamminess rancid, that stock is surperficial by the microorganisms of food, can keep switching the wholesomeness of chamber interior.And then by LED being set as light source, caloric value is less, can prevent to switch indoor temperature and rise, and can make the keeping quality of food become stable.In addition, LED is because operating cost is cheap and durability is good, versatility is very high, can carry out the densification design, so can guarantee to switch the inner capacities of chamber.

And then, according to the kind of food, switching the indoor effect of the wavelength by comprising ultraviolet region in preservation, obtain the synthetic effect of vitamin D can be when drying.

Description of drawings

Fig. 1 is the side sectional view of the refrigerator of embodiments of the present invention 1.

Fig. 2 is the side sectional view of the refrigerator of embodiments of the present invention 2.

Fig. 3 is the side sectional view of the refrigerator of embodiments of the present invention 3.

Fig. 4 is the cutaway view of the Lights section of embodiments of the present invention 3.

Fig. 5 is the ultraviolet LED exposure of the bright salmon 7 days of expression embodiments of the present invention 3 when preserving and the figure of the relation of aerobic plate count.

Fig. 6 is the side sectional view of the refrigerator of embodiments of the present invention 4.

Fig. 7 is the side sectional view of the refrigerator of embodiments of the present invention 5.

Fig. 8 is the side sectional view of the refrigerator of embodiments of the present invention 6.

Fig. 9 is the side sectional view of the refrigerator of embodiments of the present invention 7.

Figure 10 is the cutaway view of the Lights section of embodiments of the present invention 7.

Figure 11 is the front view of the refrigerator of embodiments of the present invention 8.

Figure 12 is the front view of the state that door is taken off of the refrigerator of expression embodiments of the present invention 8.

Figure 13 is the part amplification front elevation of the depository dish of embodiments of the present invention 8.

Figure 14 is the part amplification view of the depository dish of embodiments of the present invention 8.

Figure 15 is the ultraviolet LED exposure of the bright salmon 7 days of expression embodiments of the present invention 8 when preserving and the figure of the relation of aerobic plate count.

Figure 16 is the side sectional view of the refrigerator of embodiments of the present invention 9.

Figure 17 is the figure of ultraviolet pesticides removal performance of the refrigerator of expression embodiments of the present invention 9.

Figure 18 is the side sectional view of the refrigerator of embodiments of the present invention 10.

Figure 19 is the figure of ultraviolet pesticides removal performance of the refrigerator of expression embodiments of the present invention 10.

Figure 20 is the side sectional view of the refrigerator of embodiments of the present invention 11.

Figure 21 is the side sectional view of refrigerator in the past.

Label declaration

1,201,301,2001,2101 refrigerator main bodies

2,202,302,2002,3112 refrigerating chambers

3,203,303,2003,3115 refrigerating chambers

4,2004,3114 vegetable compartment

6,206,306,2006,3113 switch chamber (storeroom)

12,212,312,2012 Machine Rooms

13,213,313,2013 light sources

16,1216,1316,2016 compressors

20,2020 evaporimeters

35,2035 depository dishes (subregion)

3100 refrigerators

3111 dividing plates

3116a, 3116b door

3118 ultraviolet lamps (ultraviolet irradiation means)

3120 testing agencies

3121 step switch

The specific embodiment

Below, utilize accompanying drawing that embodiments of the present invention are described.In addition, the present invention is not limited by this embodiment.

(embodiment 1)

Fig. 1 is the side sectional view of the refrigerator of embodiments of the present invention 1.

In Fig. 1, refrigerator main body (the following main body that only is called) 1 possesses in the space that is made of the outer container 23 with the interior case 22 of the resinite vacuum forming of ABS etc. and the metal material that uses precoated steel plate etc. and injects the thermal wall that foaming heat insulation body 24 forms.Foaming heat insulation body 24 for example uses hard polyurethane foams, phenol foam, styrenic foams etc.If use the hydrocarbon system pentamethylene as expanded material, then prevent aspect the viewpoint of global warming better.

In addition, in the space that constitutes by interior case 22 before 24 foaming of foaming heat insulation body and outer container 23, utilize not shown adhering part to connect airtight in the outer container side and be pasted with vacuum heat-insulation parts 25.In addition, vacuum heat-insulation parts 25 are in the wall thickness that is provided in main body 1 and need the parts of thin flat shape.And then whole face is coated with the adhering part of hot melt layer etc. on the stickup face of vacuum heat-insulation parts 25, so that air can not be blended in the adhesive portion.Vacuum heat-insulation parts 25 foam integratedly with foaming heat insulation body 24 and constitute main body 1, have 5 times by comparing with foaming heat insulation body 24～and the vacuum heat-insulation parts 25 of 20 times heat-proof quality have improved performance.

Main body 1 is divided into a plurality of heat insulation subregions, and the form of the door of each storeroom is to make that top is the rotation gate-type, to make the bottom be the structure of drawer type.From switching chamber 6 and ice-making compartment 5, the vegetable compartment 4 of drawer type and the refrigerating chamber 3 of drawer type that begins to be provided with refrigerating chamber 2, arranges the drawer type that is provided with.On each heat insulation subregion, be provided with insulated door via packing ring (ガ ス ケ Star ト) 31 respectively.In addition, from beginning to be provided with the rotary door 7 of refrigerating chamber, switching chamber drawer door 8, ice-making compartment drawer door 9, vegetable compartment drawer door 10, cold chamber drawer door 11.

On the rotary door 7 of refrigerating chamber, be provided with a bag 34, in refrigerator, be provided with a plurality of shelves of taking in as accommodation space.In addition, the foot at refrigerating chamber 2 is provided with depository dish 35.

Refrigerating chamber 2 is set at 1～5 ℃ usually, but according to the collecting article difference, also has the user can freely switch the situation that temperature as described above is set for stored refrigerated and be lower limit with uncongealable temperature.In addition, also have and carry out the situation that the higher temperature about 10 ℃ is for example set for wine or root Vegetable Preservation.

In addition, depository dish 35 is set at lower temperature, for example-3～1 ℃ for the fresh-keeping property that improves the flesh of fish or flesh of fish class processed food, dairy products etc.Vegetable compartment 4 is set at mostly with the equal or higher temperature of refrigerating chamber 2 and sets 2 ℃～7 ℃.Low temperature and high relative humidity is kept the freshness of leaf vegetables between more can be for a long time.

Switching chamber 6 can come changing temperature to set by user's setting, can take to as little from freezer temperature and freeze little the freezing (partial freezing) of temperature band and then bring the fixed temperature setting of professional etiquette into to refrigerated storage temperature, by the switch 14 on the rotary door 7 of operation refrigerating chamber, switch the adjustment in the chamber 6, the temperature of switching in the chamber 6 is detected by testing agency 17.Like this, possess as the switching chamber 6 of the storeroom of heat insulation subregion and be controlled to be any the function of temperature that is chosen to predefined a plurality of temperature.And then, in switching chamber 6, be provided with light source 13.That is, in the refrigerator of present embodiment, have the storeroom of heat insulation subregion, in storeroom as have ultraviolet region wavelength light source 13 and be provided with LED.And, the wavelength that the ultraviolet light that is shone by the LED as light source 13 has the scope from 280nm to 400nm.By this light source, suppressed breeding attached to the bacterium in food or the switching chamber, improved the retention of fresh food.In addition, by the visible light from 400nm to 800nm is used with the LED that conduct comprises the light source 13 of ultraviolet region, when the switching of drawer type door, the visible light of shining from light source 13 spills, so the user of refrigerator can discern visible light.And then the number and the intensity of light source 13 are not particularly limited, and as required the light of optimal tone is sent with optimal intensity, and the bright lamp of these light emitting sources and the action of turning off the light are undertaken by control substrate 37.

In addition, ice-making compartment 5 is independently to ice preserving chamber, possesses not shown automatic ice-making plant, is the part of automatically making, store ice.To ice but the cryogenic temperature band in order preserving, but, to set so also can carry out comparing higher cryogenic temperature with the cryogenic temperature band because purpose is to preserve ice.

Refrigerating chamber 3 is set at-22～-18 ℃ usually for freezing preservation, but in order to improve freezing preservation state, also for example is set at the low temperature of-30 ℃ or-25 ℃ sometimes.

Cave in and be provided with Machine Room 12 in the rear of main body 1 foot.In addition, on back wall face above the Machine Room 12, be provided with the 2nd Machine Room 36.

Freeze cycle is to be provided in compressor 16 in the Machine Room 12, not shown condenser, to be connected to ring-type successively and to constitute a series of refrigerant flow path as the capillary and the evaporimeter 20 of pressure reducer.Evaporimeter 20 carries out the forced convertion heat exchange by cooling fan 21.Not shown condenser also can utilize the fan forced air-cooling, also can be that heat is transmitted the natural air cooling type on the inboard stick on outer container 23 well, also can be with on the separating part that is provided between each chamber insulated door body and be used for prevent that the pipe arrangement of drop makes up.

In addition, also can utilize the stream controlling organization of electric T-shaped valve etc., separately use a plurality of evaporimeters of the structure of setting corresponding to partitioned organization and temperature or switch a plurality of capillaries or in the stopping of compressor 16, carry out shut off gas etc.

The dismountable lid of control substrate 37 usefulness that makes freeze cycle work is airtight and be configured in the 2nd Machine Room 36.And then Machine Room 12 is also removably roughly airtight by back side lid 15.

In addition, the evaporimeter 20 as the constitution equipment of freeze cycle is located in the back side portion of the vegetable compartment 4 that is positioned at the stage casing with cooling fan 21.Can increase internal volume and depth thus to greatest extent as the refrigerating chamber 3 of hypomere storeroom.

In addition, if the refrigerating chamber 3 of the vegetable compartment in stage casing 4 and hypomere be about opposite configuration, then can increase the internal volume and the depth of vegetable compartment 4 to greatest extent.

For above such refrigerator that constitutes, below its work of explanation, effect.

At first, the work to freeze cycle describes.According to the temperature of the setting in the case, by the signal from control substrate 37, freeze cycle work and cool off running., reduced pressure by capillary and become the liquid refrigerant of low-temp low-pressure by the cold-producing medium of the HTHP that spued heat release and condensing liquefaction in condenser by the action of compressor 16, arrive evaporimeter 20.

By the action of cooling fan 21, with the air heat exchange in the refrigerator, the cold-producing medium evaporation gasification in the evaporimeter 20.Carry out the cooling of each chamber by cold air with not shown choke valve distribution low temperature such as (damper).In addition, under the situation of using a plurality of evaporimeters and pressure reducer, by the evaporimeter 20 the supply system cryogens of stream controlling organization to needs.The cold-producing medium that comes out from evaporimeter 20 is sucked to compressor 16.Carry out cooling in the refrigerator by such repetitive cycle operation.

In switching chamber 6, can take the refrigerated storage temperature band to from chilling temperature according to user's purpose and hobby and switch multistagely.In the present embodiment, the temperature of switching chamber 6 can be divided the refrigerated storage temperature that switch to 3 ℃ ,-18 ℃ cryogenic temperature, be that center little frozen temperature, is Quench (chilled) temperature at center with-2 ℃～0 ℃ as temperature in the middle of it with-3～-2 ℃.

In light source 13, use and have as the LED of wavelength than the wavelength of the scope from 280nm to 400nm in the zone of long and relatively safer ultraviolet light,long wave and B, thus, can make and swim in storeroom or attached to the gene variation of the microorganism on wall or the food surface and make the breeding function deactivation.Thus, the wholesomeness of chamber interior can be kept switching, and variable color or the generation of being clamminess rancid, food surface that the breeding because of microorganism produces can be postponed.Comprise ultraviolet light source 13, the preservation that can improve the conservatory health of food by such setting.

And then, have mushroom class and fish to contain the food of the precursor substance of vitamin D so morely, by being energized to their irradiation ultraviolet radiation molecules to the vitamin D conversion.Thus, comprise ultraviolet light source 13, can when improving the vitamin D amount that switches the specific food in the chamber 6, preserve by in switching chamber 6, being provided with.

In addition, light source 13 usefulness are had the LED of wavelength of the scope from 280nm to 400nm in zone of and ultraviolet light,long wave relatively safety and B long and the LED that has as the wavelength about the 650nm of red light and constitute as wavelength, can promote best in apple, blueberry, strawberry, green purple perilla, broccoli, eggplant, the purple potato etc. more that contain, as the generation of the anthocyanin of the red phytochrome in the organism.Anthocyanin is owing to contain in the fruit of vegetables and fruit morely, so switch the temperature that the design temperature of chamber 6 is suitably for the preservation that is suitable for vegetables.In addition, anthocyanin is a kind of of polyphenol (Port リ Off エ ノ one Le), except to eyes preferably the effect, also be verified the effect of anti-aging that Wheat Protein brings, artery sclerosis inhibitory action etc., be to the extraordinary material of health, can in the anthocyanin increment, preserve.

Light source 13 usefulness are had as wavelength than the LED of the wavelength of the scope from 280nm to 400nm in the zone of long and relatively safer ultraviolet light,long wave and B and the LED formation with wavelength of the viewing area more than the 400nm, be similar to sun light wavelength by controlling their wavelength, can also shining.In addition, can also be with the LED and the temperature interlock of switching chamber 6 of the wavelength of viewing area, be controlled to be and have for example color that is suitable for imagining of the temperature band of redness, green, blueness etc.The variation of the tone that the change of setting by predefined like this temperature brings can set and variations in temperature by the temperature that visual identification is switched in the chamber 6, and the user can easily be associated the conservation object thing according to its tone.Therefore, with food to switching chamber 6 when taking in, can when preventing user's confusion, promote to be suitable for the taking in of food of design temperature.

In addition, the input that is used for controlling such light source 13 is to be undertaken by the reaction of testing agency 17.The serviceability temperature sensor is imported after detecting uniform temperature in testing agency 17, but is under the situation of door switch in for example testing agency 17, also can import behind the certain hour after detecting an opening, does not specify especially.

In the refrigerator of present embodiment, switch chamber 6 and be positioned at the below of refrigerating chamber 2, and be positioned at the top of vegetable compartment 4 and refrigerating chamber 3.By making such layout, the women of average height can not switched the switching of the door of chamber 6 with bending over, and also can not bend over and carry out with posture easily for picking and placeing of food, so ease of use is better, and then by light source 13 is set, retention further improves.

In addition, in the present embodiment,, consider ease of use and be made as the rotation gate-type, be made as drawer type for other, but these are not particularly limited for refrigerating chamber for the form of the door of each storeroom.

According to more than, in the switching chamber 6 of the refrigerator of present embodiment, by from by having as the LED of the wavelength of the scope from 280nm to 400nm in the long zone of compare safe ultraviolet light,long wave and B of wavelength and having light source 13 irradiates lights that the LED of the wavelength of the viewing area more than the 400nm constitutes, provide following effect: improve the antibiotic property of switching in the chamber 6, and improve the vitamin D that dried sardine etc. contains the food of vitamin D Precursors and increase wait functional, improve the retention of switching chamber 6.

(embodiment 2)

Fig. 2 represents the side sectional view of the refrigerator of embodiments of the present invention 2.

In Fig. 2, light source 213 is arranged on and switches in the chamber 206, in addition, take in the Machine Room 212 of main structural components of the freeze cycle of compressor 216 and not shown condenser etc., be arranged on the back side as the epimere of the refrigerating chamber 202 in the place beyond the back side of refrigerating chamber 203.

Therefore in the past, Machine Room 212 was positioned at the back side as the refrigerating chamber 203 of main body 201 foots, made the volume reducing of refrigerating chamber 203, will switch the chamber for the frozen food that can not take in and carry out freezing setting to be used as the situation that refrigerating chamber substitutes more.By Machine Room 212 being configured in the past refrigerator internal cause position is difficult to reach than the master-hand and the back side of the topmost of the refrigerating chamber 202 that can not effectively utilize, can be with the part of in the past Machine Room as the reefer space utilization.Thereby, appearance and size is changed and effective case internal volume of expansion refrigerating chamber 203.

In addition, in large supermarket in recent years, the situation of carrying out the special selling of frozen food termly increases, and can see the figure that the housewife only buys in day concentrated area of selling at a special price morely.Thereby, insufficient space discontented more that preserves frozen food.So, owing to replenished the off-capacity of the refrigerating chamber 203 of main body 201 foots in the past, though so it is higher as the frequency that frozen mode uses to switch chamber 206, the capacity by refrigerating chamber 203 significantly increases, and can switch chamber 206 and use beyond cryogenic temperature.

For example, be set under little situation of freezing will switching chamber 206, freeze under the temperature band fresh food little about-3 ℃ and can preserve for 1 week, the time that not only can not thaw and cooking, and with freezing preservation to compare the cellular damage of freezing to bring less, so the outflow of drop is also less, can keep delicious food.In addition, by from by the effect that has as the LED of the wavelength of the scope from 280nm to 400nm in the zone of long ultraviolet light,long wave that compare safety of wavelength and B and have light source 213 irradiates lights that the LED of the wavelength of the viewing area more than the 400nm constitutes, provide improve the antibiotic property of switching in the chamber 206 and improve that vitamin D that dried sardine etc. contains the food of vitamin D Precursors increases etc. functional, improves the retention of switching chamber 206.

(embodiment 3)

Fig. 3 is the side sectional view of the refrigerator of embodiments of the present invention 3, and Fig. 4 is the cutaway view that switches the Lights section in the chamber that is arranged on of embodiments of the present invention 3.In addition, Fig. 5 is the bright salmon 7 days of the expression embodiments of the present invention 3 ultraviolet LED exposure when preserving and the figure of the relation of aerobic plate count.

In the present embodiment, the Machine Room 312 of main structural components of taking in the freeze cycle of compressor 316 and not shown condenser etc. is arranged on the back side as the epimere of the refrigerating chamber 302 in the place beyond the back side of refrigerating chamber 303.Thereby, can be with the part of in the past Machine Room 312 as the reefer space utilization.Thereby, appearance and size is changed and effective case internal volume of expansion refrigerating chamber 303.Replenished the off-capacity of the refrigerating chamber 303 of main body 301 foots in the past owing to switch chamber 306, so though switching chamber 306 is higher as the frequency that frozen mode uses, but the capacity by refrigerating chamber 303 significantly increases, and can use beyond cryogenic temperature switching chamber 306.For example, be set under little situation of freezing will switching chamber 306, freeze under the temperature band fresh food little about-3 ℃ and can preserve for 1 week, the time that not only can not thaw and cooking, and with freezing preservation to compare the cellular damage of freezing to bring less, so the outflow of drop is also less, can keep delicious food.

And then, in Fig. 3, possess light source 313 on the end face in switching chamber 306, on the inwall of refrigerating chamber 302, possess guidance panel 314.

In Fig. 4, light source 313 is made of with substrate 328 light source of ultraviolet LED 326 that possesses the ultraviolet region that comprises wavelength peak 387nm and the blue led 327 that possesses wavelength peak 468nm, is covered by the lid 329 of light transmission.In addition, light source 313 is provided on the substantial middle part of the end face 306a that switches chamber 306.

Be located at this light source and be configured to, be provided with towards the below, shine the bottom surface of switching the chamber by illuminated portion with light with LED326 and blue led 327 on the substrate 328 as light source.

In addition, light source is fixed on the main body 301 by Screw via lid 329 with substrate 328.This fixing means does not specify, but except as present embodiment with Screw fixing can also by cover 329 and the chimeric grade of main body 301 sides fix.

In addition, lid 329 has the convex form that stretches out than the end face 306a that switches chamber 306.

Cover light source with the lid 329 of substrate 328 and switch and clip packing ring 330 between the 306a of chamber and roughly fix hermetically in respect to refrigerator.In addition, by around lid 329, equipping pawl, further improved hermetic type.In the present embodiment, improve the pawl of hermetic type, except being located at the periphery pawl 331a that covers on 329 the periphery, also being provided with and being arranged on the interior all pawl 331b that cover on interior week of 329 as this.In the structure of the both sides equipment pawl that clips packing ring 330, further improved obturation effect by like this.

In addition, the material that uses in lid 329 does not specify, but is preferably the higher resin base material of durability with respect to ultraviolet ray etc.And then, if partly implemented to have the hair side processing etc. of the polarisation function of light, then can improve the diffusivity of light.

For above such refrigerator that constitutes, below its work of explanation, effect.

Only be set under Quench or the little situation of freezing the temperature band in the user will be switched chamber 306 by guidance panel 314 temperature, ultraviolet LED 326 and blue led 327 bright lamps, under the situation that is set at the cryogenic temperature band, ultraviolet LED 326 is turned off the light at least.

Generally, ultravioletly the irradiation of food is worried to promote the lipid oxidation of food to make quality badness between long-term.But, preserve between the storage life of situation of food in the Quench of the temperature band by preserving usefulness as short-term or little temperature band that freezes, be from about 1 week to 2 weeks, can't see illumination and penetrate the quality badness that brings, can access the antibacterial effect of ultraviolet light.

Such based on Quench and little freezing the temperature band, because the food that is saved is not freeze or the state of microfreeze, so the activity of intracellular zymoprotein and gene descends from-3 ℃ to 0 ℃ temperature band.Thereby, though can suppress the breeding of bacterium and microorganism to a certain degree, can not stop fully.

Thus, by irradiating ultraviolet light and blue light, improved antibiotic property, for attached to the microorganisms of bacterium on the food surface and mould etc. or be present in the microorganisms of the bacterium of switching in the chamber 6 and mould etc., can make their gene deactivation and suppress breeding, improve keeping quality.

In addition, because Quench and little temperature band that freezes are the temperature bands that mainly uses when the animal food of main preservation meat or the easy breeding of the such bacterium of fish, are effective application process so improve antibacterial effect in these temperature bands in the actual use of refrigerator.

In addition, be set under the situation of cryogenic temperature band in switching chamber 306, the intracellular Free water of the food that is saved is freezed, the activity of intracellular zymoprotein and gene almost disappears, suppress rotting of food thus, and then, owing to the breeding that can suppress, so lamp is not worried bacterial reproduction yet even light source 313 works attached to bacterium on the food and microorganism.Thus, light source 313 is turned off the light when the setting of cryogenic temperature band.

In addition, by not carrying out the irradiation of light when the setting of cryogenic temperature band, can prevent that illumination from penetrating the energy loss of bringing.And then, can also prevent that illumination from penetrating the rising slightly of the temperature of the switching chamber of bringing, further improved the keeping quality under the cryogenic temperature band.

By so only irradiating ultraviolet light when having set the temperature band of short-term preservation usefulness, do not worry the lipid oxidation of the food that ultraviolet ray brings, can improve antibacterial effect.

In addition, in the temperature band more than 0 ℃, because the breeding of bacterium increases with exponential function, if so make ultraviolet LED 326 and blue led 327 bright lamps, then the spontaneous heating by LED is risen about 4～5 ℃ temperature, so it is more than the antibacterial effect of ultraviolet light to be accompanied by the breeding of the bacterium that this temperature rises, thus in the temperature band more than 0 ℃ not with light source 313 bright lamps.But the antibacterial effect that obtains making ultraviolet LED 326 and blue led 327 bright lamps is being followed under the situation more than the breeding of the bacterium that temperature rises, can also be at the temperature band more than 0 ℃ with light source 313 bright lamps.

In addition, use in the more temperature band more than 0 ℃ of the breeding of bacterium under the situation of light source 313, the exposure with ultraviolet LED 326 in the antibacterial effect that improves ultraviolet LED 326 is very low in the harmfulness to human body, to set in the no problem level in the security the user be very important.

And then the light that shines from blue led 327 has the effect of the breeding of mould fungus inhibition, and by shining simultaneously with ultraviolet LED 326, hygiene effect further improves.

In addition, in the present embodiment, in order to improve the antibiotic property of switching chamber 306, light source 313 is arranged on the substantial middle part of the end face 306a that switches chamber 306 down by the illuminated portion that makes light, and light can be reached on the whole bottom surface of switching chamber 306.

And then, in order light to be delivered to switch each corner of chamber 306, to implement to have the hair side of polarisation function and process by cover a part of 329, can improve the diffusivity of light.And then, can also the processing with such polarisation effect and install Polarizer etc. back, make cover a part of 329 transparent, light is spread to the part that light is difficult to arrive.

In addition, lid 329 has the convex form that stretches out than the end face 306a that switches chamber 306 because protuberance has planar portions and rake, so for be positioned at lamp under part from the planar portions irradiates light, for than the horizontal part of lamp from the rake irradiates light.

Thus, at the light of wanting irradiation light so that it is under the situation of horizontal diffusion, by having in a part that makes planar portions on the basis of polarisation function, rake is made the higher transparent lid of the transparency, can bring into play the effect that makes the horizontal proliferation of light in refrigerator.

In addition, this LED is by using the wider type of directive property, and light can not shine as the crow flies, can further improve to make the effect of light to horizontal diffusion.

In addition, among the structure with polarisation function, this hair side processing etc. are compared with transparent lid 329 and are difficult for seeing parts that lid is inner etc., also have the control substrate and are attached to the effect that its distribution etc. is hidden.Thereby, by improving diffusible while that the polarisation effect brings, implementing hair side processing, be difficult for seeing and cover 329 inside also have the effect of the grade that can improve light source 313 in the place that the sight line from the user arrives easily.

And then, since cover light source with the lid 329 of substrate 328 and switch and clip packing ring 330 between the end face 306a of chamber 306 and roughly be provided with hermetically in respect to refrigerator, so also have the effect that in refrigerator, spills from the smell that the material of controlling substrate and LED etc. is emitted of preventing.In addition, be equipped in the stronger material of smell of the control substrate that covers in 329 and LED do not use general use in constituent material phenol etc., even and preferably use just in case the food etc. that also can not take place under the situation that the air-tight state of lid 329 descends in refrigerator produces the material that smell shifts.

Here, confirm that for the switching chamber 306 of using present embodiment the experimental result of the antibacterial effect of animal food describes.

Fig. 5 is the ultraviolet LED exposure of the bright salmon 7 days of expression present embodiment when preserving and the figure of the relation of aerobic plate count.In switching chamber 306, will be under the setting of the temperature inside the box-1 ℃ as generally often being kept at the bright salmon of switching the food in the chamber 306 and selecting as sample, preserve while shining ultraviolet LED 326, by changing the exposure of ultraviolet LED 326, the variation of the aerobic plate count when expression is preserved 7 days.The exposure of expression ultraviolet LED 326 in transverse axis, the aerobic plate count after in the longitudinal axis, preserving during bright 1 week of salmon of expression.As shown in the figure, can confirm significant correlation in the exposure of ultraviolet LED 326 and antibiotic property, the exposure of ultraviolet LED 326 is strong more, and the increase of aerobic plate count is suppressed more.

In addition, in home-use refrigerator, when having anti-microbial property, preferably the exposure of ultraviolet LED 326 is set at that harmfulness to human body is very low, the level of the problem in the security that do not have the user.

On the other hand, Quench or little freezing in the temperature band, owing to the food of preserving does not freeze, or the state of microfreeze, so the enzymatic activity of intracellular protein is kept.For example, use meat or fish as the situation of preserving food under, be accompanied by active enough height (not shown) of aminopeptidase of their intracellular proteolytic, the generation that helps free amino acid.Amino acid as delicious composition in this means during preservation increases.Thereby, in the present embodiment, because the rate of freezing is the microfreeze state below 70%, more than so the crystallization of ice can not grow to a certain degree, so do not have cytoclasis, quality badness be difficult for to take place little freeze or chilling temp under preservation the time, the wavelength of the ultraviolet range by shining ultraviolet LED 326 again, that can suppress that bacterium brings rots, and can improve keeping quality.In addition, the preservation of these temperature bands is owing to suppressing water droplet, so further improved delicious sense when thawing.In addition, in Quench or little temperature of freezing when setting, in the food beyond meat and fish, can promote effectively in for example apple, blueberry, strawberry, green purple perilla, broccoli, eggplant, the purple potato etc. more that contain, as the generation of the anthocyanin of the red phytochrome in the organism, can access in addition and increase the effect that vitamin D that dried sardine etc. contains the food of vitamin D Precursors increases wait functional, improves the retention of switching chamber 306.

(embodiment 4)

Fig. 6 represents the side sectional view of the refrigerator of embodiments of the present invention 4.

In Fig. 6, main body 2001 possesses in the space that is made of the outer container 2023 with the interior case 2022 of the resinite vacuum forming of ABS etc. and the metal material that uses precoated steel plate etc. injects the thermal wall that foaming heat insulation body 2024 forms.Foaming heat insulation body 2024 for example uses hard polyurethane foams, phenol foam, styrenic foams etc.If use the hydrocarbon system pentamethylene as expanded material, then prevent aspect the viewpoint of global warming better.

In addition, in the space that constitutes by interior case 2022 before 2024 foaming of foaming heat insulation body and outer container 2023, utilize not shown adhering part to connect airtight in the outer container side and be pasted with vacuum heat-insulation parts 2025.In addition, vacuum heat-insulation parts 2025 are in the wall thickness that is provided in main body 2001 and need the parts of thin flat shape.And then whole face is coated with the adhering part of hot melt layer etc. on the stickup face of vacuum heat-insulation parts 2025, so that air can not be blended in the adhesive portion.Vacuum heat-insulation parts 2025 foam integratedly with foaming heat insulation body 2024 and constitute main body 2001, have 5 times by comparing with foaming heat insulation body 2024～and the vacuum heat-insulation parts 2025 of 20 times heat-proof quality have improved performance.

Main body 2001 is partitioned a plurality of heat insulation subregions, and the form of the door of each storeroom is to make that top is the rotation gate-type, to make the bottom be the structure of drawer type.From switching chamber 2006 and ice-making compartment 2005, the vegetable compartment 2004 of drawer type and the refrigerating chamber 2003 of drawer type that begins to be provided with refrigerating chamber 2002, arranges the drawer type that is provided with.On each heat insulation subregion, be provided with insulated door via packing ring 2031 respectively.In addition, from beginning to be provided with the rotary door 2007 of refrigerating chamber, switching chamber drawer door 2008, ice-making compartment drawer door 2009, vegetable compartment drawer door 2010, cold chamber drawer door 2011.

On the rotary door 2007 of refrigerating chamber, be provided with a bag 2034, in case, be provided with a plurality of shelves of taking in as accommodation space.In addition, at the foot of refrigerating chamber 2002, though the degree of can not former state putting into as the solids of food etc. in some gaps by having of resin cap subregion roughly as the subregion of enclosure space and be provided with depository dish 2035.And then, in depository dish 2035, be provided with light source 2013.The number of light source 2013 is not limited to one, also can be made of a plurality of.In addition, intensity also is not particularly limited, and is adjusted to optimal intensity by control substrate 2037, and the action of also carrying out bright lamp and turning off the light as required.At least one of light source 2013 is the LED that comprises the ultraviolet region of the scope from 280nm to 400nm, suppressed breeding attached to the bacterium on the wall of the depository dish 2035 of food and subregion by this light source, and the retention of food improves.And then, when wanting to suppress to improve retention, can increase the number of the LED of the ultraviolet region that comprises the scope from 280nm to 400nm attached to the breeding of the bacterium on the wall.In addition, use simultaneously by LED that will comprise the visible light from 400nm to 800nm and the LED that comprises the ultraviolet region of the scope from 280nm to 400nm, when the rotary door of refrigerating chamber 2007 open, by the visible light from light source 2013 irradiations, the user can discern the color of the light in the depository dish 2035.In addition, the position that is provided with of the light source 2013 in the depository dish 2035 is not particularly limited, but preferably is set to, and makes that light source 2013 can directly not stimulate user's eyeball when the user opens the rotary door 2007 of refrigerating chamber.In addition, also can make it can directly not stimulate user's eyeball on the light source 2013 by lid is installed in.The material of the lid of light source 2013 is unqualified, but also can use the material that for example can make the type of wavelength change, only the color of regulating light by a light source.

And then the setting of a plurality of light sources in the same subregion is not limited to a position, also each light source can be arranged on the different place in the same subregion.

Refrigerating chamber 2002 is set at 1～5 ℃ usually, but according to the collecting article difference, also has the user can freely switch the situation that temperature as described above is set for stored refrigerated and be lower limit with uncongealable temperature.In addition, also have and carry out the situation that the higher temperature about 10 ℃ is for example set for wine or root Vegetable Preservation.

In addition, in the present embodiment, depository dish 2035 is set at lower temperature for the fresh-keeping property that improves the flesh of fish or flesh of fish class processed food, dairy products etc., and is that temperature is switchable, for example sets down at-3～5 ℃.Vegetable compartment 2004 is set at mostly with the equal or higher temperature of refrigerating chamber 2002 and sets 2 ℃～7 ℃.Low temperature and high relative humidity is kept the freshness of leaf vegetables between more can be for a long time.

Switch the switching chamber 2006 of chamber as temperature with the temperature handoff functionality that can be set at a plurality of different temperature bands, can come changing temperature to set by user's setting, can from freezer temperature take to as little freeze the temperature band little freeze freezing, bring the fixed temperature of professional etiquette into to refrigerated storage temperature and set, by the switch 2014 on the rotary door 2007 of operation refrigerating chamber, switch the adjustment in the chamber 2006, the temperature of switching in the chamber 2006 is detected by testing agency 2017.

In addition, ice-making compartment 2005 is independently to ice preserving chamber, possesses not shown automatic ice-making plant, is the part of automatically making, store ice.To ice but the cryogenic temperature band in order preserving, but, to set so also can carry out comparing higher cryogenic temperature with the cryogenic temperature band because purpose is to preserve ice.

Refrigerating chamber 2003 is set at-22～-18 ℃ usually for freezing preservation, but in order to improve freezing preservation state, also for example is set at the low temperature of-30 ℃ or-25 ℃ sometimes.

Main body 2001 is provided with Machine Room 2012 in the depressed part of the rear of foot depression.In addition, on back wall face above the Machine Room 2012, be provided with the 2nd Machine Room 2036.

Freeze cycle is to be provided in compressor 2016 in the Machine Room 2012, not shown condenser, to be connected to ring-type successively and to constitute a series of refrigerant flow path as the capillary and the evaporimeter 2020 of pressure reducer.Evaporimeter 2020 carries out the forced convertion heat exchange by cooling fan 2021.Not shown condenser also can utilize the fan forced air-cooling, also can be that heat is transmitted the natural air cooling type on the inboard stick on outer container 2023 well, also can be with on the separating part that is provided between each chamber insulated door body and be used for prevent that the pipe arrangement of drop makes up.

Like this, be provided with compressor 2016 in deep as the refrigerating chamber 2003 of hypomere storeroom.

In addition, also can utilize the stream controlling organization of electric T-shaped valve etc., separately use a plurality of evaporimeters of the structure of setting corresponding to partitioned organization and temperature or switch a plurality of capillaries or in the stopping of compressor 2016, carry out shut off gas etc.

The dismountable lid of control substrate 2037 usefulness that makes freeze cycle work is airtight and be configured in the 2nd Machine Room 2036.And then Machine Room 2012 is also removably roughly airtight by back side lid 2015.

In addition, be located at the back side portion of the vegetable compartment 2004 that is positioned at the stage casing as the evaporimeter 2020 of the constitution equipment of freeze cycle with cooling fan 2021.

For above such refrigerator that constitutes, below its work of explanation, effect.

At first, the work to freeze cycle describes.According to the temperature of the setting in the case, by the signal from control substrate 2037, freeze cycle work and cool off running., reduced pressure by capillary and become the liquid refrigerant of low-temp low-pressure by the cold-producing medium of the HTHP that spued heat release and condensing liquefaction in condenser by the action of compressor 2016, arrive evaporimeter 2020.

By the action of cooling fan 2021, with the air heat exchange in the refrigerator, the cold-producing medium evaporation gasification in the evaporimeter 2020.Carry out the cooling of each chamber by cold air with not shown distribution low temperature such as choke valve.In addition, under the situation of using a plurality of evaporimeters and pressure reducer, by the evaporimeter 2020 the supply system cryogens of stream controlling organization to needs.The cold-producing medium that comes out from evaporimeter 2020 is sucked to compressor 2016.Carry out cooling in the refrigerator by such repetitive cycle operation.

In the depository dish 2035 in refrigerating chamber 2002, according to user's purpose and hobby and can multistage ground switching temperature.In the present embodiment, the temperature of depository dish 2035 can be divided and switch to approximately about-3 ℃ little and freeze temperature, about 0 ℃ chilling temp.

In addition, the deterioration of the material of the resin that uses storage space of in the light source that uses, worrying that the temperature in the storage space that the heating of lamp brings rises in the less storage space of internal volume as depository dish 2035, bringing from the irradiation of in-plant light etc. promotes, the oxidation promotion of food etc.Thereby, use at least one in light source 2013 less ultraviolet light,long wave of deterioration facilitation effect with, material long and safer and food and B to human body as wavelength the zone the scope from 280nm to 400nm wavelength and almost do not have the heating of lamp self, at also good LED aspect operating cost and the durability.Thus, light source 2013 is adjusted to optimal wavelength and intensity by control substrate 2037, but also can always bright lamp.Particularly, even be divided under little situation of freezing the temperature that temperature food freezes slightly in the temperature that makes depository dish 2035, in wavelength, also antibacterial effect can be obtained easily, the raising of retention can be expected as the scope from 280nm to 400nm in ultraviolet A and B zone.

Thus, the wholesomeness of depository dish 2035 inside can be kept, and variable color or the generation of being clamminess rancid, food surface that the breeding because of microorganism produces can be postponed for food.Comprise ultraviolet light source 2013, the preservation that can improve the conservatory health of food by such setting.

And then, the food that contains the precursor substance of vitamin D in mushroom class and the fish is arranged morely, by being energized to their irradiation ultraviolet radiation molecules to the vitamin D conversion.Thus, by the light source 2013 that comprises ultraviolet light is set in depository dish 2035, can in the vitamin D amount of the specific food in improving depository dish 2035, preserve.

Light source 2013 usefulness are had as wavelength than the LED of the wavelength of the scope from 280nm to 400nm in the zone of long and relatively safer ultraviolet light,long wave and B and the LED formation with wavelength of the viewing area more than the 400nm, be similar to sun light wavelength by controlling their wavelength with same substrate, can also shining.Though there is not the qualification of wavelength, under the situation of the wavelength that for example uses the blueness about 550nm, breeding that can mould fungus inhibition by using the wavelength in ultraviolet A and B zone simultaneously, can further improve retention.

In addition, light source 2013 usefulness are had the LED of wavelength of the scope from 280nm to 400nm in zone of and ultraviolet light,long wave relatively safety and B long and the LED that has as the wavelength about the 650nm of red light and constitute as wavelength, can promote effectively in apple, blueberry, strawberry, green purple perilla, broccoli, eggplant, the purple potato etc. more that contain, as the generation of the anthocyanin of the red phytochrome in the organism.Anthocyanin is owing to contain in the fruit of vegetables and fruit morely, so under the design temperature in the depository dish 2035 being controlled to be as the situation more than the pact-2 of the chill point of the fruit of vegetables and fruit ℃, the cell of vegetables and fruit can be not destroyed, so can compare good preservation.

In addition, can also be with the temperature interlock of the LED and the depository dish 2035 of the wavelength of viewing area, be controlled to be and have for example color that is suitable for imagining of the temperature band of redness, green, blueness etc.The variation of the tone that the change of setting by predefined like this temperature brings can set and variations in temperature by the temperature in the visual identification depository dish 2035, and the user can easily be associated the conservation object thing according to its tone.Therefore, when food is taken in, can when preventing user's confusion, promote to be suitable for the taking in of food of design temperature in depository dish 2035.

In addition, the input that is used for controlling such light source 2013 is to be undertaken by the reaction of testing agency 2017.The serviceability temperature sensor is imported after detecting uniform temperature in testing agency 2017, but is under the situation of door switch in for example testing agency 2017, also can import behind the certain hour after detecting an opening, does not specify especially.

Switch chamber 2006 and be positioned at the below of refrigerating chamber 2002, and be positioned at the top of vegetable compartment 2004 and refrigerating chamber 2003.By making such layout, the women of average height can not switched the switching of the door of chamber 2006 with bending over, and also can not bend over and carry out with posture easily for picking and placeing of food, so ease of use is better.

In addition, in the present embodiment, be equipped at least one in a plurality of storerooms in the main body 2001, possesses the switching chamber 2006 of switching the chamber as temperature with the temperature handoff functionality that can be set at a plurality of different temperature bands, in inside as the refrigerating chamber 2002 of the storeroom different with switching chamber 2006, take in the storage space of shelf etc. except being set at possessing of refrigerated storage temperature band, in addition can be and the subregion with temperature handoff functionality of multistage ground switching temperature is formed with depository dish 2035 by the partition wall subregion that is made of resin in this subregion according to user's purpose and hobby.

This depository dish 2035 can be set at temperature band arbitrarily by the user, can divide temperature except common refrigerated storage temperature band, can also switch to approximately about-3 ℃ little and freeze temperature, about 0 ℃ chilling temp, in subregion, be equipped with LED as the light source of wavelength with ultraviolet region with this temperature handoff functionality.

Thus, the user can be set at the higher temperature arbitrarily of usage frequency with switching chamber 2006 and bring use.In addition, be equipped in conduct in the refrigerating chamber 2002 have ultraviolet region wavelength light source and possess the subregion of LED, can under user's storage wants further to improve the situation of conservatory food, use.And, since the subregion that is provided with this LED also can be corresponding to user's needs design temperature, so, can further improve user's ease of use by each storeroom and the storage subregion person's of being used demand is separately used.

In addition, be equipped in conduct in the refrigerating chamber 2002 have ultraviolet region wavelength light source and possess the subregion of LED, the depository dish that possesses drawer type, be equipped in the main body side in the outside of depository dish as the LED of light source 2013, and the resin that constitutes for the material by photopermeability with the depository dish 2035 of the opposed part of LED at least.

Thus, as present embodiment, depository dish 2035 is under the situation in the less storage space of interior volume specific ratio, can worry that especially the temperature in the depository dish that the heating of the light source 2013 that uses brings rises, but by being located at the outside of depository dish 2035 as the LED of light source 2013, can prevent that the temperature in the depository dish 2035 from rising, and can prevent to be accompanied by that temperature rises to the dewfall as the LED of light source 2013.

Like this, because the light source that can remain the wavelength that will have ultraviolet region under the state of low temperature in depository dish shines effectively via the box of permeability,, can give full play to ultraviolet useful effect so further improved keeping quality in the depository dish.

In addition, in the present embodiment, the subregion that is equipped with as the LED of light source 2013 is the subregion with temperature handoff functionality, but form according to product, for example also can be, be equipped in the temperature in the depository dish 2035 in this subregion, not carrying out temperature switches and preestablishes, in the case, for example in depository dish 2035, preserve with the food that saves as prerequisite between short-term etc. and access the article of the useful effect of antibiotic and amino acid increase etc. by the luminous energy of ultraviolet region, and for example preserve in other subregions of the refrigerating chamber 2002 beyond depository dish 2035 in order to save as prerequisite and the food of the flavoring etc. of the deterioration that ultraviolet light brings might to take place with long-standing, can separate use like this.

In addition, as mentioned above, in depository dish 2035, preestablished under such situation, if be redefined for the lower temperature band of refrigerated storage temperature band as the refrigerating chamber 2002 outer than depository dish 2035, little temperature of freezing of about about-3 ℃, about 0 ℃ chilling temp etc., then compare antibacterial effect and amino acid increase effect that the further light belt that has improved ultraviolet region comes with the refrigerated storage temperature band, so do not have at subregion under the situation of temperature handoff functionality with light source, be set at than the lower temperature band of refrigerated storage temperature band, owing to can bring into play the light effect of ultraviolet region to greatest extent, so more preferably.

In addition, in the present embodiment,, consider ease of use and be made as the rotation gate-type, be made as drawer type for other, but these are not particularly limited for refrigerating chamber 2002 for the form of the door of each storeroom.

According to more than, in the refrigerating chamber 2002 of present embodiment, be provided with by the LED of the wavelength of the scope from 280nm to 400nm in zone and depository dish 2035 with light source 2013 that the LED of wavelength of the scope of 400nm constitutes with and ultraviolet light,long wave relatively safety and B long as wavelength, when the picking and placeing of food, also can suppress temperature and rise, can also suppress sneaking into from the outer assorted bacterium of refrigerator.Therefore, although light source 2013 is long wavelengths, also can carry out the higher preservation of antibiotic property.

(embodiment 5)

Fig. 7 represents the side sectional view of the refrigerator of embodiments of the present invention 5.

In Fig. 7, depository dish 2035 is provided with heat insulating member 2018 with the boundary face of refrigerating chamber 2002, the thermal insulation of depository dish 2035 improves thus, so the temperature that also can suppress in the depository dish 2035 when the rotary door 2007 of refrigerating chamber is opened rises, the quality that therefore can access food keeps effect.In addition, heat insulating member 2018 is set and reduces the moving owing to can reduce meaningless energy and move of heat of by stages, so can reduce the consumed energy of main body 1.

In addition,, can prevent that ultraviolet light from reaching other adjacent subregions, so be effective under the situation of use etc. at the preservation state of wanting in the subregion of irradiation ultraviolet radiation and the subregion that do not shine, to change food and separately by separating with heat insulating member 2018.

And then, covering by material heat insulating member 2018 usefulness optical shielding properties, the light curtain-shaped cover member can suppress the scattering to the outside of light, so the irradiation quantitative change of the light in the depository dish 2035 is big, keeping quality further improves.

(embodiment 6)

Fig. 8 represents the side sectional view of the refrigerator of embodiments of the present invention 6.

For with embodiment 4 and 5 identical structures, give identical label and omit detailed explanation.

In Fig. 8, light source 2013 is arranged in the depository dish 2035, and in addition, the Machine Room 2012 of main structural components of taking in the freeze cycle of compressor 2016 and not shown condenser etc. is arranged on the back side of epimere of refrigerating chamber 2002.

In the past, Machine Room 2012 is positioned at the back side as the refrigerating chamber 2003 of main body 2001 foots, therefore make the volume reducing of refrigerating chamber 2003, by Machine Room 2012 being configured in the past refrigerator internal cause position is difficult to reach than the master-hand and the back side of the topmost of the refrigerating chamber 2002 that can not effectively utilize, can be with the part of in the past Machine Room 2012 as the reefer space utilization.Thereby, appearance and size is changed and effective case internal volume of expansion refrigerating chamber 2003.

In addition, the article of depths of shelf that in the past were accommodated in the topmost of refrigerating chamber 2002 are difficult to take out.But, by being provided with of Machine Room 2012 depth of shelf is shoaled, so observe collecting article and taking-up easily easily.That is, owing to having improved the accommodation method of refrigerating chamber 2002, on each shelf, easily collecting article having been taken out, so can shorten the open hour of the rotary door 2007 of the refrigerating chamber of refrigerating chamber 2002.Therefore, can access the conservatory effect that the temperature that can suppress in the refrigerating chamber 2002 rises, can improve the collecting article in the refrigerating chamber 2002.Thereby, depository dish 2035 only by being provided with by the LED of the wavelength of the scope from 280nm to 400nm in the zone of ultraviolet light,long wave with comparison safety and B and the light source 2013 with long wavelength of the comparison safety that the LED of the wavelength of the viewing area more than the 400nm constitutes, just can improve retention.

In addition, in the present embodiment, has Machine Room 2012 as depressed part at end face rear as the refrigerating chamber 2002 of the epimere storeroom of main body 2001, in this Machine Room 2012, possesses compressor, so by compressor being arranged on the end face depths of storeroom that hand as the user is difficult to the epimere in the space that reaches, be difficult to utilize most, the user space of the storeroom of utilization easily can be further enlarged, the ease of use of refrigerating chamber can be significantly improved.

(embodiment 7)

Fig. 9 represents the side sectional view of the refrigerator of embodiments of the present invention 7.

Figure 10 is the cutaway view of the Lights section of embodiments of the present invention 7.

In addition, for give identical label and omit detailed explanation from the identical structure of embodiment 4 to 6.

In the drawings, the boundary face of depository dish 2035 and refrigerating chamber 2002 is provided with the heat insulating member 2018 as the light curtain-shaped cover member, in addition, the Machine Room 2012 of main structural components of taking in the freeze cycle of compressor 2016 or not shown condenser etc. is arranged on quadrate part behind the end face of main body 2001.

In addition, light source 2013 is made of with substrate 2028 light source of the blue led 2027 of the blue light of ultraviolet LED 2026 that possesses the ultraviolet light that radiates wavelength peak 387nm and radiation wavelength peak 468nm, adopts by the structure that lid 2029 covers, the user can not look at light source 2013 straight of light transmission.In addition, light source 2013 is fixed, is arranged on the end face of depository dish 2035 towards the below by not shown Screw etc., so that ultraviolet LED 2026 and blue led 2027 irradiation bottom surfaces.In addition, lid 2029 and liner 2030 and being arranged between the depository dish 2035 cover the intrusion that 2029 pawl 2031 has on every side prevented water droplet etc.

In addition, depository dish 2035 is provided with heat insulating member 2018 with the boundary face of refrigerating chamber 2002, the thermal insulation of depository dish 2035 improves thus, even so when the rotary door 2007 of refrigerating chamber is opened, the temperature that also can suppress in the depository dish 2035 rises, and keeps effect so can access the quality of food.In addition, heat insulating member 2018 is set and heat mobile that reduce the by stages can reduce meaningless energy and move, so can further alleviate the catabiotic deterioration of main body 1.

Like this, in the present embodiment,, possesses heat insulating member 2018 as the light intercepting member in the top surface side of the subregion that possesses the depository dish 2035 that is provided with light source 2013.And,, the ultraviolet light concentrated area can be applied in the depository dish 2035, by further having improved the useful effect of ultraviolet light in the depository dish 2035 by suppress of the scattering of the ultraviolet light of light source 2013 by the light intercepting member to the outside.

In addition, in the present embodiment, use heat insulating member as the light intercepting member, light blocking effect and effect of heat insulation have been realized, but under the situation that does not need king-sized effect of heat insulation, as the material of light curtain-shaped cover member, also can be for example opaque resin, painted resin or metal species etc.

In addition, under the situation of using the bigger material of reflection of light effect such as metal species, except the further exposure that has improved the light in the depository dish 2035, can also make light be diffused into each corner in the depository dish 2035.

Thus, using up reflexive material by for example 2035 sides of depository dish at least of the heat insulating member 2018 of present embodiment covers, in the light depository dish, light can be reflected, so the irradiation quantitative change of the light in the depository dish 2035 is big, can make light be diffused into each corner, the effect of ultraviolet light further improves, and can improve the keeping quality of food.

(embodiment 8)

Figure 11 represents the side sectional view of the refrigerator of embodiments of the present invention 8, Figure 12 is the front view of the state that door is taken off of the refrigerator of expression embodiments of the present invention 8, Figure 13 is the part amplification front elevation of the depository dish of embodiments of the present invention 8, Figure 14 is the part amplification view of the depository dish of embodiments of the present invention 8, and Figure 15 is the ultraviolet LED exposure of the bright salmon 7 days of expression embodiments of the present invention 8 when preserving and the figure of the relation of aerobic plate count.

In the drawings, main body 2101 by heat insulating box 2102 and described later each form, be divided into top subregion 2104 and bottom subregion 2105 by the subregion wall of cutting apart up and down 2103.Top subregion 2104 with its inner by the 1st partition wall 2106 subregions be as about regional left field 2107 and right side area 2108.As the door of the front openings portion of left field 2107 sealing is disposed drawer type door 2109, as the door of the front openings portion sealing of right side area 2108 is disposed hinge open and close type door 2110.The width of drawer type door 2109 is littler than the width of hinge open and close type door 2110, thereby the internal volume of the interior volume specific ratio right side area 2108 of left field 2107 is little.And, be the structure that on the limit of the opposition side on the limit adjacent, is provided with the hinge portion 2111 of hinge open and close type door 2110 with drawer type door 2109.In the top subregion 2104, for left field 2107, right side area 2108 being merged and be set at the refrigerating chamber of refrigerated storage temperature band.In the left field 2107 that opens and closes by drawer type door 2109, be provided with a plurality of dividing plates of taking in, constitute and to pull out integratedly with drawer type door 2109.

With the right side area 2108 that opens and closes by hinge open and close type door 2110 of drawer type door 2109 opposition sides in possess a plurality of shelves 2114 of mounting collecting article, constitute, in the interior case 2115 of heat insulating box, shelf brackets is set and side end of support fixation, shelf brackets is set and another side end of support fixation on the side wall surface of the 1st partition wall 2106.

Depository dish (subregion) the 2035th, but in the refrigerated storage temperature band, switch so that it can hang down the subregion of taking in that little about some pact-3 ℃ frozen fresh food that the temperature arbitrarily of temperature, about 0 ℃ Quench mainly stores meat, fish etc. with the refrigerated storage temperature band than about 1～-3 ℃ except the refrigerated storage temperature band by the temperature of resin cap subregion.In depository dish (subregion) 2035, be provided with light source 2013.Topmost at the back side of depository dish 2035 is provided with light source 2013, and light source 2013 with respect to the back side of depository dish than vertically being provided with towards the below slightly.Thus, from the light of light source 2013 irradiation exposure intensity grow, thereby improved keeping quality to the food preserved.In addition, consider safety and be set to, make with hinge open and close type door 2110 when open, the user can the directly visual light that shines from light source 2013.

The 2nd partition wall of cutting apart about bottom subregion 2105 quilts 2127 is divided into and parts the district on the left side and part the district on the right side, part the district on the left side and dispose the ice-making compartment 2129 that possesses drawer type door 2128, the refrigerating chamber 2131 that possesses drawer type door 2130 successively, part the district on the right side and dispose the vegetable compartment 2133 that possesses drawer type door 2132, the refrigerating chamber 2135 that possesses drawer type door 2134 successively from last beginning from last beginning.

For refrigerator by above formation, below its work of explanation, effect.

In recent years, along with the maximization of refrigerator, diversified beverage increases with the amount of taking in of PET bottle and baste class in general family.Usually such bottle class situation about being accommodated in the rotary door section of refrigerator is more, has investigation result to be, among the door switching of refrigerator, considerable situation is carried out in order to take out these bottles class.

The taking-up of bottle class like this is frequent more, can increase the deterioration that the temperature that makes refrigerating chamber rises, worries the preservation quality of the food that the temperature rising brings especially in summer by the number of times that door opens and closes more.For such problem, in the present embodiment, constitute by using with the incorporate shelf of taking in of drawer type door by the left field that partition wall 2106 independently goes out in refrigerating chamber, can distinguish the beverage of PET bottle etc. or bottle at the drawer type reveal, a jar class is taken in, remove even continually bottle is got, also can realize the minimizing that temperature rises for the foodstuff of hinge open and close type door 2110 sides, improve the keeping quality of food, also help energy-conservation.And then, be positioned at hinge open and close type door 2110 sides foot, the refrigerated storage temperature band with the resin cap subregion take in subregion, be that the situation of depository dish (subregion) 2035 fresh food of preserving meat, fish etc. is more.These food are the rise food of breeding of the bacterium that brings of easy occurrence temperature, the special temperature of worrying that frequent door switching brings rises, but according to present embodiment, the temperature of the depository dish 2035 that brings except the taking-up that can suppress bottle class etc. rises, by at least one being set as the light source 2013 that comprises the LED of ultraviolet region from 280nm to the 400nm scope, can suppress breeding, further improve the retention of food attached to the bacterium on the wall of the depository dish 2035 of food or subregion.In addition, the number of light source 2013 is not limited to one, also can be made of a plurality of.That is, when wanting to suppress to improve retention, can increase the number of the LED that comprises ultraviolet region from 280nm to the 400nm scope attached to the breeding of the bacterium on the wall.Except as ultraviolet region from 280nm to 400nm, also can use the LED of wavelength simultaneously with viewing area.

For example, by shining blue light simultaneously, the breeding of Mycophyta that can mould fungus inhibition etc. has further improved retention.In addition, exposure intensity is not particularly limited, and is adjusted to only luminous intensity by control substrate (not shown), and the action of also carrying out bright lamp and turning off the light as required.

For example, under the situation of carrying out bright lamp with door switching interlock or turning off the light, under the situation that hinge open and close type door 2110 is opened, turn off the light, but when the switching of the such drawer type door of light source for example is set, also can continue bright lamp on the position that does not enter into the visual field.Particularly, because comprising the light of ultraviolet region can't see people's eyes, so for example when Jiang Men turns on, will comprise the higher bright lamp of security that visible rays etc. was turned off the light, made to the light of ultraviolet range, thereby, the user can only discern the bright lamp of light of the wavelength of safe scope, the useful effect of amino acid increase that brings by the irradiation of associating the LED that carries out when Jiang Men closes etc. can also improve the grade of the refrigerator that the user feels.

In addition, the position that is provided with of the light source 2013 in the depository dish 2035 is not particularly limited, but preferably be set to, make to be configured in from the position that the scope of directly being seen by user's eyes is left when user during, light source 2013, can not stimulate eyeball hinge open and close type door 2110 openings of refrigerator.This under the situation of the refrigerator that Japan uses, preferably, when the women of Japanese's average height under situation about under the upright state hinge open and close type door 2110 being opened, light source 2013 is configured on the part that can not directly see.Under the situation about in other country, using, preferably cooperate the women's of this state average height to regulate the position is set.

In addition, also can be by mounting cover on light source 2013, the feasible eyeball that can directly not stimulate the user.The material of the lid of light source 2013 does not limit, but if implemented to have the material of the hair side processing that makes the effect that light partly is partial to etc., then can improve the diffusivity of light.And then the setting of a plurality of light sources in the same subregion is not limited to a position, also each light source can be arranged on the different place in the same subregion.

Under such viewpoint, in the present embodiment, top at light source possesses heat insulating member as the higher parts of light barrier property, regulating so that can directly not enter into from the light of light source 2013 on user's the basis of eyes, by further keep the inside and outside temperature difference of depository dish 2035 with heat insulating member, the keeping qualities in the depository dish 2035 are further improved.

By suppressing of the scattering of the ultraviolet light of light source 2013 with the light curtain-shaped cover member as described above, can ultraviolet light be applied in the depository dish 2035 concentrated area, by further having improved ultraviolet useful effect in the depository dish 2035 to the outside.

In addition, in the present embodiment, use heat insulating member as the light intercepting member, light blocking effect and effect of heat insulation have been realized, but under the situation that does not need king-sized effect of heat insulation, as the material of light curtain-shaped cover member, also can be for example opaque resin, painted resin or metal species etc.

In addition, under the situation of using the bigger material of reflection of light effect such as metal species, except the further exposure that has improved the light in the depository dish 2035, can also make light be diffused into each corner in the depository dish 2035.

Thus, using up reflexive material by for example 2035 sides of depository dish at least of the heat insulating member 2018 of present embodiment covers, in the light depository dish, light can be reflected, so the irradiation quantitative change of the light in the depository dish 2035 is big, can make light be diffused into each corner, the effect of ultraviolet light further improves, and can improve the keeping quality of food.

Concrete face speech, depository dish 2035 is provided with heat insulating member 2018 with the boundary face of refrigerating chamber, the thermal insulation of depository dish 2035 improves thus, even so the temperature that also can suppress in the depository dish 2035 when hinge open and close type door 2110 is opened rises, the quality that therefore can access food keeps effect.In addition, heat insulating member 2018 is set and reduces the moving owing to can reduce meaningless energy and move of heat of by stages, so can reduce the catabiotic deterioration of main body.In addition,, can prevent that ultraviolet light from reaching other adjacent subregions, so be effective under the situation of use etc. at the preservation state of wanting in the subregion of irradiation ultraviolet radiation and the subregion that do not shine, to change food and separately by separating with heat insulating member 2018.

And then, by using the material of optical shielding property to cover 2035 sides of depository dish at least of heat insulating member 2018, heat insulating member with light screening effect can suppress light to the scattering of outside, so in depository dish 2035 sides, the reflection of light height, the irradiation quantitative change of the light in the depository dish 2035 is big thus, and keeping quality further improves.

The heat insulating member and the shadow shield on the top by being configured in depository dish 2035 like this can improve the exposure intensity of light source 2013, can further improve retention.

In addition, in the present embodiment, be equipped in conduct in the right side area 2108 of refrigerating chamber have ultraviolet region wavelength light source 2013 and be provided with the subregion of LED, the depository dish 2035 that possesses drawer type, this light source 2013 is equipped in the main body side in the outside of depository dish 2035, and is that material by photopermeability constitutes with the depository dish 2035 of light source 2013 opposed parts at least.

Thus, under depository dish 2035 is situation in the less storage space of interior volume specific ratio, can worry that especially the temperature in the depository dish 2035 that the heating of the light source that uses brings rise, but by light source 2013 being located at the outside of depository dish 2035, can prevent that the temperature in the depository dish 2035 from rising, and can prevent to be accompanied by the dewfall that temperature rises to light source 2013.Like this, because the light source that can remain the wavelength that will have ultraviolet region under the state of low temperature in depository dish 2035 shines effectively via the box of permeability, so further improved the keeping quality in the depository dish 2035, can give full play to ultraviolet useful effect.

In addition, in the present embodiment, depository dish 2035 is adjacent with the supply tank 2136 that ice making is used.The supply tank 2136 that ice making is used is worried the breeding of assorted bacterium, not to have implemented the running water that chlorine handles and use under the situation of commercially available water etc. especially, addling of comparing with running water that the assorted cingula of water comes is more remarkable, so the material of depository dish 2035 and supply tank 2136 is being used under the situation of the higher material of photopermeability, the light of light source 2013 also produces breeding for the assorted bacterium in the supply tank 2136 and suppresses effect.That is,, suppress effect for also bringing into play assorted bacterium breeding with depository dish 2035 adjacent areas by luminous intensity that improves light source 2013 or the light diffusing that improves light source 2013.

Like this, in the present embodiment, main body 2101 possesses a plurality of storerooms of heat insulation subregion, the storeroom that is positioned at epimere in a plurality of storerooms is a top subregion 2104, have two doors cutting apart about the front openings portion of the refrigerating chamber that will comprise left field 2107, right side area 2108 and open and close, as the door of the front openings portion of left field 2107 sealing is disposed drawer type door 2109, as the door of the front openings portion sealing of right side area 2108 is disposed hinge open and close type door 2110.Being provided with subregion as the LED of light source 2013 is arranged in from the conduct of these two doors perspective plane with hinge open and close type door 2110 the place aheads of the door of the front openings portion sealing of right side area 2108.

Thus, when the collecting article in will being accommodated in the subregion that is provided with light source 2013 takes out, not that two doors are all opened, but by only opening corresponding to a door of the subregion that is provided with light source 2013, just collecting article can be taken out, so the switching of the enough one-handed performance doors of energy can further improve user's ease of use.

In addition, in the present embodiment, main body 2101 possesses a plurality of storerooms of heat insulation subregion, the storeroom that is positioned at epimere in a plurality of storerooms is a top subregion 2104, have and to comprise left field 2107, two doors cutting apart about the front openings portion of the refrigerating chamber of right side area 2108 and open and close, merging portion by these two doors with subregion in the refrigerating chamber be as about the left field 2107 and the right side area 2108 in zone, and in as at least one the inside of right side area 2108 of subregion, also have a plurality of subregions, in the subregion that is provided with as the LED of light source 2013, possess depository dish 2035 for the subregion in zone about this.

Thus, with generally with subregion about the refrigerating chamber of other storerooms epimere that specific capacity is bigger mutually is divided into, equip door corresponding to each subregion, so when collecting article is taken out, can be only the door of the subregion of needs be opened, under other closing state, collecting article is taken out,, can suppress to be accommodated in the deterioration of the foodstuff storing in the storeroom of epimere so can prevent that the significant temperature that is accompanied by a switching of the storeroom of epimere from rising and the sneaking into of the assorted bacterium outside refrigerator.

In addition, in the present embodiment, as in two doors will cutting apart about the front openings portion of refrigerating chamber and open and close, the less door of the width of left and right directions---be about to left field 2107 the sealing of front openings portion door and dispose and possess a plurality of drawer type doors 2109 of taking in shelf, a plurality of shelves of taking in constitute, and can pull out integratedly with drawer type door 2109.

Thus, the less door of the width dimensions of left and right directions was difficult to the collecting article of inside is taken out in the past, it is very difficult only by the switching of less door collecting article being taken out on reality is used, but by less door is made drawer type door 2109, even by having only the switching of less door, the user also can be successfully takes out the collecting article of inside.Particularly, by with although usage frequency is higher but the taking in the storeroom that the place is received into drawer type of the beverage of the PET bottle that taking in property is relatively poor etc. or flavoring etc., not only the user discerns kind easily, and the temperature that can prevent to have the subregion of bigger door rises, the ease of use of the storeroom of epimere can be improved, and keeping quality can be improved.

Because a plurality of shelves of taking in constitute, can pull out integratedly with drawer type door 2109, so if drawer type door 2109 is opened, then inner can the guide look from the side of drawer type door 2109 is so can successfully take out the collecting article of inside.

Like this, by but in the storeroom of taking in the drawer type that the place is received into left field 2107 of the beverage of the PET bottle that taking in property is relatively poor etc. or flavoring etc. with although usage frequency is higher, the switching frequency that is equipped in the hinge open and close type door 2110 on the right side area 2108 significantly reduces, rise so suppressed to be equipped in the temperature of the depository dish 2035 in the subregion that possesses light source 2013, can further improve the next keeping quality of light belt of the ultraviolet region of light source 2013.

Here, the depository dish 2035 that uses present embodiment is confirmed that the experimental result of the antibacterial effect of animal food describes.Figure 15 is the ultraviolet LED exposure of the bright salmon 7 days of expression embodiments of the present invention 8 when preserving and the figure of the relation of aerobic plate count.In depository dish 2035, the bright salmon of will be in refrigerator selecting as generally often being kept at the food in the depository dish 2035 under the setting of temperature-1 ℃ is as sample, radiation source 2013 is preserved on one side on one side, by changing the exposure of ultraviolet LED, the variation of the aerobic plate count when expression is preserved 7 days.The exposure of expression ultraviolet LED in transverse axis, the aerobic plate count after in the longitudinal axis, preserving during bright 1 week of salmon of expression.As shown in the figure, can confirm significant correlation in the exposure and the antibiotic property of ultraviolet LED, the exposure of ultraviolet LED is strong more, and the increase of aerobic plate count is suppressed more.

In addition, on the other hand, use Escherichia coli (Escherichia coli IFO 3972), carry out with the photochemical catalyst antibacterial tests method III (version in 2003) that antimicrobial product technological associations formulate is the ultraviolet ray irradiation anti-microbial property evaluation of reference, the result, compare with obsolete dark condition (check plot) by the light source 2013 illumination condition of penetrating, under condition is penetrated in illumination, poor more than 100 times taken place in the aerobic plate count after preservation, so anti-microbial property (not shown) also can be confirmed in antibacterial activity value=2.03.

In addition, in home-use refrigerator, when having anti-microbial property, preferably the exposure of ultraviolet LED is set at that harmfulness to human body is very low, the level of the problem in the security that do not have the user.On the other hand, Quench or little freezing in the temperature band, owing to the food of preserving does not freeze, or the state of microfreeze, so the enzymatic activity of intracellular protein is kept.For example, use meat or fish as the situation of preserving food under, be accompanied by active enough height (not shown) of aminopeptidase of their intracellular proteolytic, the generation that helps free amino acid.Amino acid as delicious composition in this means during preservation increases.Thereby, in the present embodiment, because the rate of freezing is the microfreeze state below 70%, more than so the crystallization of ice can not grow to a certain degree, so do not have cytoclasis, quality badness be difficult for to take place little freeze or chilling temp under preservation the time, the wavelength of the ultraviolet range by shining ultraviolet LED again, that can suppress that bacterium brings rots, and can improve keeping quality.In addition, the preservation of these temperature bands is owing to suppressing water droplet, so further improved delicious sense when thawing.

In addition, in Quench or little temperature of freezing when setting, in the food beyond meat and fish, can promote effectively in for example apple, blueberry, strawberry, green purple perilla, broccoli, eggplant, the purple potato etc. more that contain, as the generation of the anthocyanin of the red phytochrome in the organism, can access in addition and increase the effect that vitamin D that dried sardine etc. contains the food of vitamin D Precursors increases wait functional, improves the retention of switching chamber 2006.

In addition, in the present embodiment, the subregion that is equipped with as the LED of light source 2013 is the subregion with temperature handoff functionality, but form according to product, also can be that temperature in the depository dish 2035 that for example is equipped in this subregion are not to carry out temperature to switch but preestablish, in the case, for example in depository dish 2035, preserve with the food that saves as prerequisite between short-term etc. and access the article of the useful effect of antibiotic and amino acid increase etc. by the luminous energy of ultraviolet region, and for example preserve in other subregions of the refrigerating chamber beyond depository dish 2035 in order to save as prerequisite and the food of the flavoring etc. of the deterioration that ultraviolet light brings might to take place with long-standing, can separate use like this.

In addition, as mentioned above, in depository dish 2035, preestablished under such situation, if be redefined for the lower temperature band of refrigerated storage temperature band as the refrigerating chamber outer than depository dish 2035, little temperature of freezing of about about-3 ℃, about 0 ℃ chilling temp etc., then compare antibacterial effect and amino acid increase effect that the further light belt that has improved ultraviolet region comes with the refrigerated storage temperature band, so do not have at subregion under the situation of temperature handoff functionality with light source, be set at than refrigerated storage temperature band and hang down the temperature band of some, so more preferably owing to can bring into play the light effect of ultraviolet region to greatest extent.

(embodiment 9)

Figure 16 is the side sectional view of the refrigerator of embodiments of the present invention 9, and Figure 17 is the figure of ultraviolet pesticides removal performance of the refrigerator of expression embodiments of the present invention 9.

In the drawings, refrigerator 3100 by demarcation strip 3111 from beginning to be divided into refrigerating chamber 3112, switching chamber 3113, vegetable compartment 3114, refrigerating chamber 3115.The inwall of vegetable compartment 3114 is made by resin.On the upper top of vegetable compartment 3114, possesses ultraviolet lamp 3118.Ultraviolet lamp 3118 is located on the end face of vegetable compartment 3114, is the ultraviolet ultraviolet LED about irradiation peak wavelength 350nm.

To above such refrigerator that constitutes, below its work of explanation, effect.

As ultraviolet lamp 3118, use to have as the LED of ultraviolet wavelength than the wavelength of the scope below the above 380nm of 280nm in long and relatively safer ultraviolet light,long wave and B zone.General in home-use refrigerator, the ultraviolet ray under the short wavelength reduces the security of human body, so be not suitable for using.In addition, if wavelength is long, then the decomposition effect of farm chemical ingredients reduces, and by using the wavelength of this scope, absorbed by agricultural chemicals easily, can make attached to the lip-deep farm chemical ingredients that is stored in vegetables in the vegetable compartment etc. and decompose, so can reduce the farm chemical ingredients of the preservation thing of storage thus.

In addition, the ultraviolet ray of the wavelength with the following scope of the above 380nm of 280nm that uses in the present embodiment is included in the wavelength in the sunshine, it is ultraviolet ray to the safer wavelength region may of human body, so can shine continuously, chemical bond attached to the farm chemical ingredients on the preservation thing that is stored in the vegetable compartment can be cut off, so the agricultural chemicals that can will adhere in the security of guaranteeing human body decomposes, decrement.Thus, the vegetables that provide when feeling at ease to feel user's human body safety can provided to the user.In addition,,, and can not make deteriorations such as for example vegetables as the preservation thing of preserving, variable color etc. yet, the agricultural chemicals that adheres to can be decomposed, decrement so be safe to human body because ultraviolet ray is included in the ultraviolet wavelength of the wavelength in the sunshine yet.

In addition, by using human body and preserving all wavelength of safety of thing, can use continuously, long-time irradiation ultraviolet radiation can decompose agricultural chemicals more, so particularly since refrigerator shine between can be for a long time in order to preserve food between longer-term, so agricultural chemicals can be decomposed more.

Because ultraviolet lamp 3118 is LED, so operating cost is also more cheap, and since because of the use deterioration under the low temperature environment of refrigerated storage temperature less, so can use semipermanently, so long-term reliability is also higher, so versatility is higher, can be with simple structure, do not make special equipment and preserve with refrigerator will be attached to the farm chemical ingredients decrement of preserving on the thing on one side on one side.

In addition, the chemical bond cut-out of the agricultural chemicals of ultraviolet ray by will preserving thing for example can make that P=O is changed to P-O, thereby, hydrophobic pair of bond can be closed and be transformed to hydrophilic singly-bound combination.In addition, the symbol in the present embodiment " P " expression phosphorus, symbol " O " expression oxygen.

Thus, with irradiation ultraviolet radiation not and compare when washing, by agricultural chemicals being washed vegetables when the guest uses after the hydrophily conversion by ultraviolet irradiation, can be with the farm chemical ingredients of preservation thing also residual behind ultraviolet irradiation decrement more.

In addition, by irradiation ultraviolet radiation, molecule changes to foment, so the mushroom class by the more precursor substance that contains vitamin D etc. change to vitamin D, can expect that nutrition increases.

In addition, ultraviolet lamp 3118 by using LED temperature rise less, so can not bring influence ground not preserve to preservation.

Figure 17 is with the ultraviolet pesticides removal performance of the refrigerator of present embodiment and impregnation method in the past and washing figure relatively.

Experimental technique is to remove by each 10 of the little tomatoes that each mode will be adhered to the malathion (malathion) of the 3ppm that has an appointment to handle operation, measures malathion concentration after handling with gas chromatography, calculates the rate of removing.

Below each side's formula is described.Being expressed as project that running water cleaned for 10 seconds among the figure represents 10 little tomatoes are put into shallow basket, clean the situation in about 10 seconds with flowing water.In addition, 24 hours project of ultraviolet ray irradiation is represented 10 little tomato irradiations 24 hours peak wavelength 350nm, 120 μ W/cm ²The situation of ultraviolet LED.

Result of experiment is that the rate of removing that running water cleaned for 10 seconds is 20%, is can not be removed the result who is ingested by 80% of the washing degree in the common family, remains of pesticide.On the other hand, during in using the food cleaning device of the Ozone Water of example in the past 1 hour was cleaned, the rate of removing of remains of pesticide was 55%.In addition, in ultraviolet ray irradiation 24 hours, the rate of removing of remains of pesticide is 55%, is the result who has with the equal pesticides removal performance of food cleaning device.

More than, by in refrigerator 3100, equipping ultraviolet LED as ultraviolet lamp 3118, can utilize time and long-time irradiation in the preservation, can have and the equal decomposability of food cleaning device, and owing to do not use the stronger ultraviolet ray of wavelength, so the deterioration of thermal wall also can not take place.Thereby, can enough resin-shaped become, can realize the reductionization and the long lifetime of fee of material.

In addition, be about 350nm by making the ultraviolet irradiation wavelength, can not bring ultraviolet ray to the harmful effect of human body, and can not make the vegetables deterioration and the agricultural chemicals that will preserve thing decomposes, agricultural chemicals decrement that can the preservation thing.

LED is because operating cost is more cheap, and durability is good, and versatility is very high, can carry out the densification design, so can guarantee the inner capacities of storeroom.

More than, in the present embodiment, use the ultraviolet ultraviolet LED that shines about peak wavelength 350nm by equipment ultraviolet lamp 3118 in refrigerator 3100, ultraviolet lamp 3118, can not bring harmful effect to human body, can not make the vegetables deterioration yet, and can not make the thermal wall deterioration that forms by resin, the farm chemical ingredients of preserving thing can be decomposed.

In addition, by Continuous irradiation ultraviolet ray LED, can also suppress attached to the breeding of preserving the bacterium on the thing, keeping quality further improves.

(embodiment 10)

Figure 18 is the side sectional view of the refrigerator of embodiments of the present invention 10.

In Figure 18, refrigerator 3100 by demarcation strip 3111 from beginning to be divided into refrigerating chamber 3112, switching chamber 3113, vegetable compartment 3114, refrigerating chamber 3115.Vegetable compartment 3114 possesses the door 3116a that is used for vegetable compartment 3114 subregions and switching, and the inwall of vegetable compartment 3114 is made by stainless steel.At the ultraviolet lamp 3118 that possesses on the upper top of vegetable compartment 3114 as the ultraviolet ultraviolet irradiation means about irradiation ultraviolet radiation, peak wavelength 250nm.In vegetable compartment 3114, be provided with the door testing agency 3120 of the switching of detecting gate 3116a.

Refrigerating chamber 3112 possesses the door 3116b that is used for refrigerating chamber 3112 subregions and switching, possesses the step switch 3121 that makes ultraviolet lamp 3118 work on door 3116b.

To above such refrigerator that constitutes, below its work of explanation, effect.

At first, 3116a opens with door, and vegetables are put in the vegetable compartment 3114.Then door 3116a is closed.Till this action, ultraviolet lamp 3118 is states of OFF.Then, user oneself will make the step switch 3121 of ultraviolet lamp 3118 work become ON, make ultraviolet lamp 3118 work.Thus, the preservation thing irradiation of ultraviolet lamp 3118 in being kept at vegetable compartment 3114.Be set at, make the step switch 3121 of ultraviolet lamp 3118 begin accumulated time and automatically become OFF in the time of 30 minutes in the moment from ON.And then, in irradiation, when the user opens door, door switch as the door testing agency 3120 of the switching of detecting gate detects this situation, ultraviolet lamp 3118 stopped and becoming OFF, thus the user can directly do not shone by ultraviolet ray, so can guarantee user's security.

In ultraviolet lamp 3118, use the lamp of the higher wavelength of capacity of decomposition with the scope from 220nm to 280nm, by the higher photon energy of ultraviolet ray, to harmful substance effect attached to lip-deep remains of pesticide that is stored in vegetables in the storeroom etc. etc., chemical bond can be cut off, so can will be stored in the farm chemical ingredients of the preservation thing in the vegetable compartment decompose, can be with the preservation thing in the vegetable compartment adhere to the agricultural chemicals decrement.

Figure 19 is with the ultraviolet pesticides removal performance of the refrigerator of present embodiment and impregnation method in the past and washing figure relatively.

Experimental technique is to remove by each 10 of the little tomatoes that each mode will be adhered to the malathion of the 3ppm that has an appointment to handle operation, measures malathion concentration after handling with gas chromatography, calculates the rate of removing.

Below each side's formula is described.Being expressed as project that running water cleaned for 10 seconds among the figure represents 10 little tomatoes are put into shallow basket, clean the situation in about 10 seconds with flowing water.In addition, 0.5 hour project of ultraviolet ray irradiation is represented 10 little tomato irradiations 0.5 hour peak wavelength 254nm, 1095 μ W/cm ²Ultraviolet situation.

Result of experiment is that the rate of removing that running water cleaned for 10 seconds is 20%, is can not be removed the result who is ingested by 80% of the washing degree in the common family, remains of pesticide.On the other hand, during in using the food cleaning device of the Ozone Water of example in the past 1 hour was cleaned, the rate of removing of remains of pesticide was 55%.In addition, in ultraviolet ray irradiation 0.5 hour, the rate of removing of remains of pesticide is 65%, be result with pesticides removal performance higher than food cleaning device, and then, compare with cleaning device, can be described as the effective mechanism of not making isolated plant and in preserving, the harmful substance of agricultural chemicals etc. being decomposed, will preserve the agricultural chemicals decrement of thing by refrigerator.

More than, in the present embodiment, by equipment ultraviolet lamp 3118 in refrigerator 3100, refrigerator has the function that can the harmful substance of agricultural chemicals etc. be removed, be decomposed with simple structure, the consumer is only by being saved in vegetables or fruit in the refrigerator, just can be simply with the harmful substance decrement of agricultural chemicals etc.

In addition,, can shorten irradiation time, help preventing the material degradation of vegetable compartment inwall by using the higher ultraviolet lamp 3118 of photon energy.

In addition, in the present embodiment, owing to, harmful substances such as agricultural chemicals are not removed, are decomposed so can not make water to vegetable compartment internal radiation ultraviolet ray.

In addition, shine when only detecting the situation of closing of a 3116a, so can prevent that the people from touching ultraviolet ray in door testing agency 3120 owing to ultraviolet ray.Thereby, can realize the raising of security.In addition,, can ultraviolet light be interdicted, when the people opens door, can directly not see ultraviolet ray at reveal by around ultraviolet, equipping shadow shield, can be only to the reserve irradiation ultraviolet radiation in the vegetable compartment.Thereby, can realize the raising of security.And then, by the equipment shadow shield, can not make to the ultraviolet energy dispersion of vegetable compartment irradiation and to the reserve irradiation, so can realize the raising of decomposition efficiency.

In addition,, can be only when making ultraviolet lamp 3118 actions, the user move in cognition by equipment step switch 3121, thus can realize the raising of security, and demand that can the person of being used and carry out the decomposition of agricultural chemicals.And then, owing to can only when the people needs, move, thus compare the reduction that can realize using energy when under running continuously, using, so can realize energy-conservationization of refrigerator.

In addition, in the present embodiment, to make the step switch 3121 of ultraviolet ray work only carry out the switching of ON, OFF, but except the handoff functionality of ON, OFF, if can select the structure of ultraviolet light quantity by the user, then the user can select the ultraviolet light quantity of needs when needed, thus can use agricultural chemicals to reduce effect as required and separately, and can realize using the reduction of energy.

In addition, in the present embodiment, making the vegetable compartment inwall is stainless steel, but also can access same effect by less metal, the glass of deterioration that ultraviolet ray brings, compare with the situation of general resin, though even decompose the bigger short wavelength's of effect ultraviolet ray or be equal wavelength but increased under the situation of ultraviolet light quantity, because the deterioration of the inwall of storeroom is less, so also can be applied to in average about the 10 years refrigerator that uses between long-term to prerequisite at agricultural chemicals.

In addition, in the present embodiment, making shadow shield is stainless steel, but also can access same effect by less metal, the glass of deterioration that ultraviolet ray brings.

In addition, in the present embodiment, with the top side configuration of ultraviolet lamp 3118 to vegetable compartment 3114, but by making receivers (not shown) in the vegetable compartment 3114 for transparent, so long as in the vegetable compartment 3114, be configured in everywhere and can access same effect.

In addition, in the present embodiment, vegetable compartment 3114 is configured in the epimere of refrigerating chamber 3115, but by vegetable compartment 3114 being configured in hypomere, when using vegetable compartment 3114, ultraviolet ray can directly not enter into eyes, can more safely use vegetable compartment 3114.

In addition, in the present embodiment, make step switch become ON by user oneself and begin irradiation, but also can detect irradiation ultraviolet radiation under the situation of closing at door switch.And, stop ultraviolet irradiation means in the time of also can detecting door open in door testing agency.

In addition, in the present embodiment, ultraviolet lamp 3118 became OFF when the step switch 3121 action back cumulative exposure times were 30 minutes, but also can user oneself be made as OFF, and in addition, demand that also can the person of being used is selected irradiation time.For example, if the irradiation time of selecting can be carried out long time set etc. according to amount or the vegetables of concern agricultural chemicals, the leaf vegetables that for example former state is eaten something rare etc. of vegetables, then can provide the refrigerator of the demand that more meets the user, be preferred.

In addition, in the present embodiment, to vegetable compartment 3114 WBR ultraviolet rays, but also can be separated out vegetable compartment 3114 subregion and only in this part equipment as the ultraviolet lamp 3118 of ultraviolet irradiation means, in the case, the subregion that is equipped with ultraviolet lamp 3118 use can be distinguished as the branch that agricultural chemicals reduces usefulness, user's raising of security and the occupation mode that meets user's demand can be proposed to realize.

(embodiment 11)

Figure 20 is the side sectional view of the refrigerator of embodiments of the present invention 11.In Figure 20, represent with identical label with Figure 16 identical mechanism, identical parts.

In Figure 20, refrigerator 3100 by demarcation strip 3111 from beginning to be divided into refrigerating chamber 3112, switching chamber 3113, vegetable compartment 3114, refrigerating chamber 3115.The inwall of vegetable compartment 3114 is made by resin.On the upper top of vegetable compartment 3114, possesses ultraviolet lamp 3118 as ultraviolet irradiation means.Ultraviolet lamp 3118 is located on the end face of vegetable compartment 3114, is the ultraviolet ultraviolet LED about irradiation peak wavelength 350nm.As ultraviolet LED, use the LED of wavelength with the following scope of the above 380nm of 280nm.In vegetable compartment, whole face has been implemented titania coating (not shown).

To above such refrigerator that constitutes, below its work of explanation, effect.

Titania photocatalyst can be produced the OH base with strong oxidability from airborne oxygen by accepting luminous energy from ultraviolet ray.This OH base is owing to making attached to the agricultural chemicals oxidation Decomposition on the preservation thing of preserving, so can preserve the farm chemical ingredients decrement of thing.

In addition, titania photocatalyst can also be produced the higher ozone of oxidability simultaneously from airborne oxygen.This ozone also can be with attached to the farm chemical ingredients oxidation Decomposition on the preservation thing in preserving, so can be with the agricultural chemicals decrement of the preservation thing in preserving.

Like this, the refrigerator of present embodiment possesses the parts as LED photochemical catalyst of performance catalyst function with having the ultraviolet ray accepted of the light source of the wavelength with ultraviolet region in storeroom, by by the LED irradiation ultraviolet radiation, the parts reaction thus will be attached to the farm chemical ingredients decrement on the preservation thing in the inside that is accommodated in storeroom.

In addition, in the present embodiment, made titania coating, but if the composition of other photochemical catalysts also can be expected same effect, and then, made titania coating, but by being mixed into the method that forms in the resin material, perhaps photochemical catalyst is made the box-like formula, also can be accessed same effect.

In addition, in the present embodiment, for material of the inwall of the structure of vegetable compartment and storeroom etc., also can make embodiment 9 or 10 described like that, it is fully feasible using described ultraviolet LED of present embodiment and photochemical catalyst in embodiment 9 or 10, can bring into play certainly in the case and above-mentioned same useful effect.

Industrial applicibility

More than, relevant refrigerator of the present invention is by from by having and relatively peace long as wavelength The LED of the wavelength of the scope from 280nm to 400nm in full ultraviolet A and B zone with And the light of the light source irradiation that consists of of the LED with wavelength of the above viewing area of 400nm is carried High conservatory structure in the depository dish. Thus, carrying with the safer light source of usefulness High retention is also can use in the equipment of purpose, for example for display case or cooling case, The conservatory raising of industrial freezer etc. can be used.

Claims (25)

1, a kind of refrigerator,

Storeroom with heat insulation subregion,

In above-mentioned storeroom, be provided with LED as light source with wavelength of ultraviolet region,

Above-mentioned storeroom possesses and controls to the function that is chosen as the some temperature in predefined a plurality of temperature.

2, refrigerator as claimed in claim 1,

The wavelength that the ultraviolet light that is shone by the LED as above-mentioned light source has the scope from 280nm to 400nm.

3, refrigerator as claimed in claim 1,

As the LED of the light source of wavelength, only be the chilling temp at center or be that center little frozen temperature work when setting with-3 ℃～-2 ℃ with-2 ℃～0 ℃ with above-mentioned ultraviolet region.

4, refrigerator as claimed in claim 2,

Under the situation of irradiation as the LED of the light source of the wavelength with above-mentioned ultraviolet region, irradiation simultaneously has the LED of the wavelength of the scope from 400nm to 800nm.

5, refrigerator as claimed in claim 1,

Have:

A plurality of storerooms of heat insulation subregion; With

Possess compressor, condenser, pressure reducer, evaporimeter and form the freeze cycle of a series of refrigerant flow path,

Above-mentioned storeroom possesses refrigerating chamber, refrigerating chamber, temperature switching chamber at least,

Above-mentioned compressor is equipped in the position in addition, the back side of above-mentioned refrigerating chamber.

6, refrigerator as claimed in claim 1,

The lid that has light transmission as the LED of the light source of wavelength with above-mentioned ultraviolet region,

At least a portion of above-mentioned lid has the polarisation function.

7, refrigerator as claimed in claim 1,

Refrigerator main body with the storeroom that possesses above-mentioned heat insulation subregion,

Above-mentioned storeroom has a plurality of subregions in inside,

In at least one of above-mentioned a plurality of subregions, be provided with LED as the light source of wavelength with ultraviolet region.

8, refrigerator as claimed in claim 7,

The wavelength that the ultraviolet light that is shone by the LED as above-mentioned light source has the scope from 280nm to 400nm.

9, refrigerator as claimed in claim 7,

Only work when specified temp is set of LED as the light source of wavelength with above-mentioned ultraviolet region.

10, refrigerator as claimed in claim 7,

With the LED of light source as the wavelength with above-mentioned ultraviolet region, irradiation has the LED of the wavelength of the scope from 400nm to 800nm.

11, refrigerator as claimed in claim 10,

It is variable that above-mentioned conduct has wavelength and in the exposure intensity at least one of LED of the LED of light source of wavelength of above-mentioned ultraviolet region and above-mentioned wavelength with the scope from 400nm to 800nm.

12, refrigerator as claimed in claim 7,

Have:

The refrigerator main body that possesses a plurality of storerooms of heat insulation subregion; With

Possess compressor, condenser, pressure reducer, evaporimeter successively and form the freeze cycle of a series of refrigerant flow path,

Above-mentioned storeroom possesses refrigerating chamber and refrigerating chamber at least,

Above-mentioned compressor is equipped in the position in addition, the back side of above-mentioned refrigerating chamber.

13, refrigerator as claimed in claim 12,

In a plurality of storerooms that possess in the above-mentioned refrigerator main body at least one is that the temperature with the temperature handoff functionality that can be set at a plurality of different temperature bands is switched the chamber,

Have a plurality of subregions in the inside of switching the storeroom the chamber except that said temperature, at least one in the above-mentioned subregion has the temperature handoff functionality that can be set at a plurality of different temperature bands,

In at least one of the subregion with said temperature handoff functionality, be provided with LED as the light source of wavelength with ultraviolet region.

14, refrigerator as claimed in claim 12,

End face rear at above-mentioned refrigerator main body has depressed part, and possesses compressor in above-mentioned depressed part,

At least one of the subregion with temperature handoff functionality that storeroom in a plurality of storerooms of heat insulation subregion, that be arranged in epimere possesses is provided with the LED as the light source of the wavelength with ultraviolet region.

15, refrigerator as claimed in claim 12,

Possess in the above-mentioned storeroom, be provided with the subregion of LED as the light source of wavelength with ultraviolet region, possess the depository dish of drawer type,

Above-mentioned LED is equipped in the refrigerator main body side in the outside of above-mentioned depository dish, and constitutes with the above-mentioned depository dish of the opposed part of the above-mentioned LED material by photopermeability at least.

16, refrigerator as claimed in claim 7,

The a plurality of storerooms that possess heat insulation subregion,

Have two doors cutting apart about the front openings portion of storeroom of epimere and open and close being positioned among above-mentioned a plurality of storerooms,

The subregion that is provided with LED is arranged at least one the perspective plane from the place ahead of above-mentioned two doors.

17, refrigerator as claimed in claim 7,

The a plurality of storerooms that possess heat insulation subregion,

Have two doors cutting apart about the front openings portion of storeroom of epimere and open and close being positioned among above-mentioned a plurality of storerooms,

Zone about merging portion by above-mentioned two doors with subregion in the above-mentioned storeroom is, and subregion be above-mentioned about the zone subregion at least one have a plurality of subregions in inside, in at least one subregion in above-mentioned subregion, be provided with LED as the light source of wavelength with ultraviolet region.

18, refrigerator as claimed in claim 17,

Door in two doors cutting apart about the front openings portion with above-mentioned storeroom and open and close, that the left and right directions width dimensions is less is a drawer type door.

19, refrigerator as claimed in claim 17,

One in two doors cutting apart about the front openings portion with above-mentioned storeroom and open and close is drawer type door, and another is rotary door,

Possesses the subregion that is provided with above-mentioned LED at the subregion that is positioned at above-mentioned rotary reveal.

20, refrigerator as claimed in claim 1,

In above-mentioned storeroom, possess as the LED of the light source of wavelength and have the ultraviolet ray of receiving and the parts of the photochemical catalyst of performance catalyst function with ultraviolet region,

Make above-mentioned parts reaction by above-mentioned LED irradiation ultraviolet radiation, thereby will reduce attached to the farm chemical ingredients on the preservation thing of the inside that is accommodated in above-mentioned storeroom.

21, refrigerator as claimed in claim 20,

The inwall of above-mentioned storeroom is formed by resin,

Ultraviolet wavelength by above-mentioned LED irradiation is below the above 380nm of 280nm.

22, a kind of refrigerator,

The heat insulating box that possesses storeroom with heat insulation subregion,

In above-mentioned storeroom, possess ultraviolet lamp as the light source of wavelength with ultraviolet region,

The inwall of above-mentioned storeroom is formed by metal, and by by above-mentioned ultraviolet lamp irradiation ultraviolet radiation, will reduce attached to the farm chemical ingredients on the preservation thing of the inside that is accommodated in above-mentioned storeroom,

Above-mentioned storeroom possesses and controls to the function that is chosen as the some temperature in predefined a plurality of temperature.

23, refrigerator as claimed in claim 22,

Above-mentioned ultraviolet wavelength is below the above 280nm of 220nm.

24, refrigerator as claimed in claim 22,

The door test section that possesses the switching that is equipped in the door on the above-mentioned storeroom and detects above-mentioned door,

When above-mentioned door test section detects above-mentioned door open, above-mentioned ultraviolet lamp is stopped.

25, refrigerator as claimed in claim 22,

Possess the running and the step switch that stops of the above-mentioned ultraviolet lamp of control,

The user can operate above-mentioned step switch.

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