CN104204695A - Refrigerator - Google Patents

Abstract

A refrigerator in one embodiment is provided with the following: a main body that has a storage compartment; a cold-air passage; a duct member; a visible-light photocatalyst; a light source; and an optical guide member. The cold-air passage, inside which cold air flows, is provided so as to connect to the storage compartment. The duct member is formed from a thermally insulating member, is provided inside the cold-air passage, and has a cold-air passage section, through which the cold air flows, and a through-hole. The photocatalyst is provided inside said cold-air passage section so as to make contact with the cold air. The light source is provided near the photocatalyst and exposes the photocatalyst to visible light. The optical guide member is provided in the through-hole and channels the light from the light source to the storage-compartment side.

Description

Refrigerator

Quoting of association request: it is basis that the application be take the benefit of priority of No. 2012-31944th, No. 2012-4046th, the Japanese patent application of submitting on January 12nd, 2012 and the Japanese patent application of submitting on February 1st, 2012, and require this rights and interests, by reference its full content is contained in to the application.

Technical field

The embodiment of explanation relates to a kind of refrigerator on the whole herein.

Background technology

Proposition has following refrigerator: in the cold air path with being communicated with in storeroom setup and use the air cleaning portion of photochemical catalyst, by this air cleaning portion to cold air (air) mobile in above-mentioned cold air path purify, for example deodorizing, degerming.General known air cleaning portion possesses by accepting photochemical catalyst and the light source to this photochemical catalyst irradiation ultraviolet radiation of the ultraviolet-responsive type that ultraviolet ray encourages.But, in recent years, propose to have the air cleaning the portion more cheap and photochemical catalyst encouraging by visible ray that power consumption is lower that used.

In TOHKEMY 2009-127977 communique, propose to have a kind of refrigerator that possesses air cleaning portion, this air cleaning portion is configured to, in cooler in being arranged at cold air path, arrange by accepting the photochemical catalyst of the such visible-light response type of titanium oxide that visible ray encourages, and the light source that this photochemical catalyst is irradiated to the visible ray that comprises the light that makes its excitation is set is light emitting diode.By this air cleaning portion carry out decompose odor material, bacterium etc. swims.

In addition, in TOHKEMY 2011-33296 communique, propose to have a kind of refrigerator, the air cleaning portion of the photochemical catalyst and the light source that possess visible-light response type is set in cold air path, in order to improve the maintainability of this air cleaning portion, the light by above-mentioned light source throws light on to the window portion of storeroom (refrigerating chamber) back side cover below.

In the situation that the former refrigerator, even if to observing in storeroom, also cannot learn whether above-mentioned air cleaning portion works, is whether light source is lighted.On the other hand, in the situation that the latter's refrigerator, the advantage having is, the window portion that the above-mentioned light of the above-mentioned light source by above-mentioned air cleaning portion irradiates above-mentioned back side cover can confirm whether above-mentioned air cleaning portion is in work thus.The in the situation that of this refrigerator, above-mentioned back side cover forms for (back side of above-mentioned storeroom) before the above-mentioned cold air path of cold air flow.In this cold air path, the temperature of mobile cold air is than the low temperature of temperature in storeroom (refrigerating chamber).Thereby, on the surface of the above-mentioned window portion of this back side cover, easily produce dewfall and easily produce fuzzy.

Prior art document

Patent documentation

Patent documentation 1: TOHKEMY 2009-127977 communique

Patent documentation 2: TOHKEMY 2011-33296 communique

Summary of the invention

The problem that invention will solve

The object of embodiments of the present invention is, improves the maintenance of the refrigerator that possesses photochemical catalyst, energy-conservation performance.

For solving the means of problem

The refrigerator of an embodiment is, possesses and has refrigerator main body, cold air path, the conduit component of storeroom, photochemical catalyst, light source and the light guide member of visible-light response type.Above-mentioned cold air path is set to be communicated with above-mentioned storeroom in above-mentioned refrigerator main body, supplies by the cooling cold air flow of cooler.Above-mentioned conduit component is formed by heat insulating member, and is arranged in above-mentioned cold air path, has and supplies the cold air passage portion of mobile cold air flow in this cold air path and be arranged at the perforation oral area between this cold air passage portion and above-mentioned storeroom.Above-mentioned photochemical catalyst is set to contact with cold air in above-mentioned cold air passage portion.Above-mentioned light source be arranged at photochemical catalyst near, above-mentioned photochemical catalyst is irradiated to the visible ray of the light that comprises the wavelength that encourages above-mentioned photochemical catalyst.Above-mentioned light guide member is arranged at above-mentioned perforation oral area, and the light sending from above-mentioned light source is guided to above-mentioned storeroom side.

The refrigerator of other embodiments is to possess photochemical catalyst, light emitting diode and the control part of storeroom, cooler, fan, visible-light response type.Said fans makes the cold air being generated by above-mentioned cooler in above-mentioned storage indoor circulation.Above-mentioned photochemical catalyst is configured in the circulating path of above-mentioned cold air.Above-mentioned light emitting diode irradiates light to above-mentioned photochemical catalyst.Above-mentioned control part drives above-mentioned light emitting diode by pulse voltage.

Accompanying drawing explanation

Fig. 1 is the summary longitudinal section of the refrigerator of the first embodiment.

Fig. 2 amplifies by the major part of Fig. 1 the longitudinal section representing.

Fig. 3 cuts off the major part of Fig. 1 and the stereogram of amplification expression.

Fig. 4 cuts off light guide member and cover and the stereogram of amplification expression.

Fig. 5 is the longitudinal section of the refrigerator of the second embodiment.

Fig. 6 amplifies by the major part of Fig. 5 the sectional view representing.

Fig. 7 is the longitudinal section of the refrigerator of the 3rd embodiment.

The specific embodiment

Below, with reference to accompanying drawing, a plurality of embodiments are described.In the accompanying drawings, identical symbol represents identical or similar part.With reference to Fig. 1, the refrigerator of the first embodiment is described.In Fig. 1, the insulated case 2 of refrigerator main body 1 is filling heat insulator 5 and form between the outer container 3 of steel plate system and plastic interior case 4 substantially.The case shape of the cuboid of (left side of Fig. 1) opening before housing 2 becomes.In insulated case 2, (in refrigerator) separated up and down by adiabatic partition wall 6.In housing 2, the upper layer side of this thermal insulation partition wall 6 becomes refrigerating chamber 7, and lower layer side becomes refrigerating chamber 8.At the front face of this refrigerating chamber 7 and refrigerating chamber 8, be provided with respectively the door 9,10 of the open and close type that has used hinge.This door 9,10 also has thermal insulation.Refrigerating chamber 7 and refrigerating chamber 8 are formed for the storeroom of the reserves such as foodstuff storing.

At the rear portion of refrigerating chamber 7, be provided with back side cover 11.Dorsal part at this back side cover 11 is provided with the first cold air path 12 extending along the vertical direction.Lower side in the inside of this first cold air path 12 is provided with the cooler 13 being connected with freeze cycle (not shown).Upper side in the inside of the first cold air path 12 is provided with box fan 14.Cover overleaf 11 top and be provided with cold air blow-off outlet 15.Cover overleaf 11 bottom and be provided with cold air return port 16.Thereby the first cold air path 12 is communicated with refrigerating chamber 7 via cold air blow-off outlet 15 and cold air return port 16.

At the rear portion of refrigerating chamber 8, be provided with back side cover 18.Dorsal part at this back side cover 18 is provided with the second cold air path 19 extending along the vertical direction.The top of this second cold air path 19 extends to the dorsal part of above-mentioned the first cold air path 12, and is communicated with this first cold air path 12.In the second cold air path 19, be provided with the conduit component 20 of the dorsal part on the top that is positioned at back side cover 18.In this conduit component 20, be provided with cold air passage portion 21.As described in detail in the back, the both ends up and down of this cold air passage portion 21 are communicated with the second cold air path 19.

Back side cover 18 tops from refrigerating chamber 8 of refrigerating chamber 8 extend near the bottom of pars intermedia of above-below direction.On this back side cover 18, than above-mentioned conduit component 20 position on the lower, be provided with a plurality of cold air blow-off outlets 22.The second cold air path 19 is communicated with refrigerating chamber 8 via cold air blow-off outlet 22.

In adiabatic partition wall 6, be provided with the 3rd cold air path 23.The front portion of the 3rd cold air path 23 is communicated with refrigerating chamber 8 by cold air return port 24.The rear portion of the 3rd cold air path 23 is communicated with the first cold air path 12 by the cold air path (not shown) being arranged in adiabatic partition wall 6.Downside at the rear portion of insulated case 2 is provided with Machine Room 25.In this Machine Room 25, be equipped with the compressor 26 of above-mentioned freeze cycle etc.

While driving above-mentioned box fan 14 under the state of compressor 26 runnings in above-mentioned freeze cycle, as in Fig. 1 by as shown in arrow A, by the cooling cold air of cooler 13, by the first cold air path 12, blow out in from a plurality of cold air blow-off outlets 15 to refrigerating chamber 7 and make refrigerating chamber 7 interior cooling.Air in refrigerating chamber 7 turns back in the first cold air path 12 from cold air return port 16, again cooling by cooler 13.A part by the cooling cold air of cooler 13, as in Fig. 1 by as shown in arrow B, by the bottom of the top of the second cold air path 19, the cold air passage portion 21 of conduit component 20 and the second cold air path 19, from a plurality of cold air blow-off outlets 22, in refrigerating chamber 8, blow out, make refrigerating chamber 8 interior cooling.Air in refrigerating chamber 8 turns back in the first cold air path 12 by the 3rd cold air path 23 from cold air return port 24, again cooling by cooler 13.

As shown in Figure 3, the above-mentioned conduit component 20 being arranged in the second cold air path 19 is, former and later two heat insulating members 20a, the 20b that by combination, by foamed styrene etc., are formed form.As shown in FIG. 2 and 3, in conduit component 20, be formed with above-mentioned cold air passage portion 21.One end of this cold air passage portion 21 is that top is communicated with above-mentioned the second cold air path 19, and the other end of cold air passage portion 21 is that bottom is also communicated with the second cold air path 19.The part of the sensing above-below direction in cold air passage portion 21, is provided with air cleaning member 30 as air cleaning portion.

As shown in Figure 2, air cleaning member 30 possess framework 31, be disposed at this framework 31 upper and lower two substrates 32 and be disposed at two filters 33 between these two substrates 32.These two filters 33 can supply circulation of air, are carried with from the teeth outwards the photochemical catalyst 34 of visible-light response type.

The photochemical catalyst of visible-light response type can be following material: at least one that select in the group from being formed by titanium oxide, zinc oxide, strontium titanates, tungsten oxide and carborundum, as adulterant, add at least one impurity element of selecting and the material obtaining from the group being formed by vanadium, chromium, manganese, iron, cobalt, nickel and copper.The photochemical catalyst of visible-light response type can be to make the surface of photocatalyst particles contain halogenation platinum compound and the material that obtains.This photochemical catalyst is that the common photochemical catalyst of catalyst activity is shown under the ultraviolet wavelength of 1～360nm, for example, the most general photochemical catalyst is that titanium oxide is following photochemical catalyst: the ultraviolet ray by 270nm activates, with respect to this, the light by the visible region than more low-energy 360～760nm also activates.As this photochemical catalyst, for example the photochemical catalyst of the known visible-light response type being formed by the titanium oxide of the nitrogen that adulterated, held the titanium oxide of platinum.

On upper and lower two aforesaid substrates 32, be formed with a plurality of through holes 35 that through-thickness connects, cold air mobile in above-mentioned cold air passage portion 21 can pass through these through holes 35.On below the substrate 32 of upside, be provided with a plurality of light sources 36 down, be provided with upward a plurality of light sources 36 on the substrate 32 of downside.36 pairs of above-mentioned photochemical catalysts 34 of this each light source send the visible ray of the light that comprises the wavelength that encourages above-mentioned photochemical catalyst 34.These light sources 36 for example consist of LED (light emitting diode).Two substrates 32 are configured to, and under opposed state, the in the situation that of with respect to flow direction (direction of the arrow B of Fig. 2) intersection of cold air mobile in above-mentioned cold air passage portion 21, in present embodiment, are being quadrature mutually on above-below direction.

On the heat insulating member 20a of front side (refrigerating chamber 8 sides) that forms conduit component 20, be provided with the perforation oral area 37 connecting along fore-and-aft direction.This rearward end that connects oral area 37, towards cold air passage portion 21 openings, connects the leading section of oral area 37 towards refrigerating chamber 8 (storeroom) opening.The aperture area of the rearward end of this perforation oral area 37 is set to the aperture area that is less than leading section.At perforation oral area 37, be equipped with light guide member 38.

In this case, light guide member 38 combines light guide body 39 and cover 40 and form.This light guide body 39 and cover 40 are formed by transparent for example synthetic resin.As shown in Figure 4, light guide body 39 become by the 39a of top portion and below the 39b of portion at rear portion separately, connect junction configuration, from transverse observation, become the V font of toe lateral opening.This light guide body 39 transversely forms more longways left and right, and the part being clamped by the 39a of top portion and the following 39b of portion becomes blank part 41.The back-end closure of cold air passage portion 21 sides of this blank part 41, the front opening of refrigerating chamber 8 sides of blank part 41.

Cover 40 has integratedly: lid main part 40a, become the tabular of rectangle, and stop up the peristome of the front end of above-mentioned blank part 41; And two protuberance 40b, towards rear, be based in respectively rising wood and the lower edge of this lid main part 40a.Cover 40 can load and unload to cover the mode of blank part 41 from front the front portion that is installed on light guide body 39.Each protuberance 40b has and the 39a of top portion of light guide body 39 and two holding section 40c that the 39b of portion engages below.The lid main part 40a of cover 40 above with the heat insulating member 20a of the front side shown in Fig. 2 and Fig. 3 become roughly the same above.Cover 40 has light diffusion.

In light guide member 38, the area of rearward end that becomes the light guide body 39 of cold air passage portion 21 sides forms the area of the lid main part 40a that is less than the cover 40 that becomes refrigerating chamber 8 sides.In the inside of light guide member 38, have blank part 41, these blank part 41 tegmentum parts 40 cover from becoming the leading section of refrigerating chamber 8 sides.

The heat insulating member 20a of the front side of above-mentioned conduit component 20 contacts with the back side of the back side cover 18 of refrigerating chamber 8 above.On this back side cover 18, with the cover 40 of light guide member 38 be formed with accordingly peristome 42 above.The aperture area of this peristome 42 forms the above-mentioned area above of the lid main part 40a that is less than light guide member 38.Thereby peristome 42 covers the above-mentioned circumference above of main part 40a from toe lateral.

In the above-described configuration, under the state of compressor 26 running in above-mentioned freeze cycle during driving box internal fan 14, as mentioned above, by the cooling cold air of cooler 13, as represented by arrow A in Fig. 1, by the first cold air path 12, from cold air blow-off outlet 15, in refrigerating chamber 7, blow out, make refrigerating chamber 7 interior cooling.Air in refrigerating chamber 7 turns back in the first cold air path 12 from cold air return port 16, again cooling by cooler 13.And, by a part for the cooling cold air of cooler 13, as represented by arrow B in Fig. 1～Fig. 3, by the cold air passage portion 21 of the second cold air path 19 and conduit component 20, then, from each cold air blow-off outlet 22, in refrigerating chamber 8, blow out, make refrigerating chamber 8 interior cooling.

Now, as shown in Figure 2, mobile cold air from the top down in cold air passage portion 21, successively above-mentioned a plurality of through holes 35 of the substrate 32 of above-mentioned a plurality of through holes 35, upper and lower two filters 33 and the downside of the substrate 32 by upside.Now, when being arranged at above-mentioned a plurality of light sources 36 of upper and lower substrate 32 and lighting, be arranged at surperficial photochemical catalyst 34 activation of above-mentioned a plurality of filter 33, in the air (cold air) contact with this photochemical catalyst 34 contained foul smell one-tenth grade be decomposed remove, this air (cold air) is cleaned.Thereby the air purifying by photochemical catalyst 34 (cold air) is from cold air blow-off outlet 22 to the interior supply of refrigerating chamber 8.Air in refrigerating chamber 8 turns back in the first cold air path 12 by the 3rd cold air path 23 from cold air return port 24, and again cooling by cooler 13.By this situation repeatedly, the air in refrigerating chamber 8 and then in refrigerating chamber 7 is also cleaned.

When above-mentioned a plurality of light sources 36 are lighted, the light of these light sources 36, by the especially top 39a of portion and the following 39b of portion of the light guide body 39 of light guide member 38, throws light on to cover 40 from dorsal part by this light.The light that cover 40 is thrown light on spreads by this cover 40, by peristome 42, to refrigerating chamber 8, is sidelong and penetrates.Now, the door of opening refrigerating chamber 8 as user is 10 time, and user can observe the light that this cover 40 is thrown light on.User, by observing this light, can learn that air cleaning member 30 is in work.

According to above-mentioned embodiment, the cold air passage portion 21 of the conduit component 20 in being arranged at the second cold air path 19 is provided with air cleaning member 30, and this air cleaning member 30 possesses the above-mentioned a plurality of light sources 36 that have above-mentioned a plurality of filters 33 of photochemical catalyst 34 and make these photochemical catalyst 34 activation.By air cleaning member 30 is set, can purify the air passing through in cold air passage portion 21.Be configured to, at the perforation oral area 37 that forms the heat insulating member 20a of conduit component 20, light guide member 38 be set, the light of above-mentioned a plurality of light sources 36 is guided to refrigerating chamber 8 sides by this light guide member 38.By this formation, can, by the light of above-mentioned a plurality of light sources 36 of air cleaning member 30 to refrigerating chamber 8 side guiding, can confirm whether air cleaning member 30 is work from refrigerating chamber 8 sides.

And, in this case, be configured to, make light guide member 38 that the light of above-mentioned a plurality of light sources 36 of cold air passage portion 21 sides is gone out to refrigerating chamber 8 side-draws, be arranged at the perforation oral area 37 of the heat insulating member 20a that forms conduit component 20.Thereby, even if the temperature of the cold air passing through in cold air passage portion 21 is low temperature (approximately-20 ℃), also can do one's utmost to prevent from producing dewfall on the cover 40 that becomes light taking-up side.

Light guide member 38 forms, and the area of the rearward end of cold air passage portion 21 sides is less than the anterior area that becomes refrigerating chamber 8 sides.Particularly, the light guide body 39 of light guide member 38 becomes the 39a of top portion and the V font of the following 39b of portion in rearward end link, open front.Thereby the heat that can reduce the low temperature of cold air passage portion 21 sides suppresses the heat conduction to refrigerating chamber 8 sides to the heat conduction path of cover 40 conduction of toe lateral, and can guarantee significantly the lighting area of the light that goes out to refrigerating chamber 8 side-draws.

And above-mentioned light guide member 38 is configured to, on top the inside between the 39a of portion and the following 39b of portion has blank part 41.By thering is blank part 41, also can reduce the heat of low temperature of cold air passage portion 21 sides to the cross section of the heat conduction path of cover 40 conduction of toe lateral, the heat conduction to refrigerating chamber 8 sides can be suppressed, and the lighting area of the light that goes out to refrigerating chamber 8 side-draws can be guaranteed significantly.

Light guide member 38 has the cover 40 that covers blank part 41 from refrigerating chamber 8 sides, therefore can do one's utmost to prevent from producing dewfall on the inner face of the 39a of top portion that forms blank part 41, the following 39b of portion and cover 40.

From refrigerating chamber 8 sides, covering the back side cover 18 of conduit components 20, with light guide member 38 be provided with accordingly peristome 42 above.The aperture area of this peristome 42 form be less than light guide member 38 before the area of (the lid main part 40a of cover 40 before).By this formation, when observing near covers 40 from refrigerating chamber 8 sides, by the back side, cover 18 and dorsal part around peristome 42 is hidden, become and easily observe the illumination based on cover 40.And, can prevent that cover 40 from departing to refrigerating chamber 8 sides.

Above-mentioned a plurality of light sources 36 of air cleaning member 30, are arranged at respectively two substrates 32 up and down that have for above-mentioned a plurality of through holes 35 that mobile cold air passes through in cold air passage portion 21.These two substrates 32 with under mutual opposed state with respect to the state configuration of flow direction (with reference to the arrow B of Fig. 2) quadrature of cold air mobile in cold air passage portion 21.For taking out the light guide member 38 of light of above-mentioned a plurality of light source 36, be disposed at the position corresponding with the central portion of the overlapping direction (above-below direction) of above-mentioned two substrates 32.By this formation, can take out well the light of the above-mentioned a plurality of light sources 36 that are positioned at each upper and lower substrate 32 by this light guide member 38.

In this case, also the direction configuration that two substrates 32 can be tilted along the flow direction (direction of the arrow B of Fig. 2) with respect to cold air mobile in cold air passage portion 21, and light guide member 38 is configured along the vertical direction of the flow direction with cold air.By this formation, the light of above-mentioned a plurality of light sources 36 arrives light guide member 38 by above-mentioned a plurality of through holes 35 of above-mentioned a plurality of substrates 32.

Air cleaning member 30 and the light guide member 38 with photochemical catalyst 34 and a plurality of light source 36, be disposed at cold air mobile in the cold air passage portion 21 of the second cold air path 19 to the part blowing out in refrigerating chamber 8 be cold air blow-off outlet 22 near.Thereby, can be by the air supply after purifying tightly by air cleaning member 30 to refrigerating chamber 8.Above-mentioned air cleaning member 30 and light guide member 38 also can be arranged near the cold air return port 24 of the 3rd cold air path 23.

In the above-described embodiment, light guide member 38 consists of light guide body 39 and cover 40 these two parts, but also can consist of parts.

Be configured in the above-described embodiment, by 13 pairs of refrigerating chambers 7 of a cooler and refrigerating chamber 8, undertaken cooling.The formation of this embodiment, also can be applied to possess independently respectively the refrigerator of the cooler of cooling use of refrigerating chamber and the cooler of the cooling use of refrigerating chamber.

As described above, according to the refrigerator of present embodiment, by the cold air passage portion of the conduit component in being arranged at cold air path, the light source that the photochemical catalyst of visible-light response type is set and makes this photochemical catalyst activation, can purify the air by above-mentioned cold air passage portion thus.And, be configured to, at the perforation oral area that forms the heat insulating member of above-mentioned conduit component, light guide member is set, the light of above-mentioned light source is guided to storeroom side by this light guide member.By becoming this formation, can, by the light of above-mentioned light source to the guiding of storeroom side, can confirm whether light source is work from above-mentioned storeroom side.And, being configured to, the above-mentioned light guide member that the light of the above-mentioned light source of above-mentioned cold air passage portion side is gone out to above-mentioned storeroom side-draw, is arranged at the heat insulating member that forms conduit component.Thereby, even if the temperature of the cold air by above-mentioned cold air passage portion is low temperature, also can do one's utmost to prevent that the above-mentioned storeroom side of taking out side at the light that becomes above-mentioned light guide member from producing dewfall.

Below, based on Fig. 5, the refrigerator of the second embodiment is described.

In the refrigerator 61 of present embodiment, be formed with the refrigerator main body 65 that the body of thermal insulating box by filling with foam insulation materials 64 between outer container 62 and interior case 63 forms.The inner space of refrigerator main body 65 is divided by adiabatic partition wall 66, and is provided with the storeroom 71 of refrigerated storage temperature band on top and the reefer space 80 of the cryogenic temperature band of bottom.

Above-mentioned storeroom 71 inside are further divided into three spaces along the vertical direction by doubling as putting ceiling demarcation strip 72 and the demarcation strip 73 of shelf.Upper space is to be for example cooled to 3～6 ℃ of degree and to be provided with the refrigeration storage space 74 that multilayer puts shelf 76.Central space is for example the preservation of vegetables space 90 that is cooled to the vegetable container 75 of 4～7 ℃ of degree and configuration drawer type.Lower space is for example the cryopreservation space 91 that is cooled to-3～0 ℃ of degree and configuration low-temperature (low temperature) vessel 93.

The front openings portion of above-mentioned storeroom 71 is by two of left and right refrigerating-chamber door, 99 sealings of rotating the mode of splitting being arranged on freely on the hinge part (not shown) that is arranged at refrigerator main body 65.By door sensor 43, these switchings of 99 are detected.In the door inner side of refrigerating-chamber door 99, i.e. a back side, be equipped with up and down up for taking in the collecting pallet 44 of the two-layer shelf-like of food etc.Thereunder be equipped with up and down the two-layer pocket bag 46 of taking in of higher containers such as taking in polyester bottles, vial.

Before two above-mentioned refrigerating-chamber doors 99, dispose for operating the guidance panel 94 of this refrigerator 61.Guidance panel 94 is that user carries out pressing operation to the console switch 95 of push button, thus the intensity of cooling of each storage space is switched to setting, or works as the selection portion that the execution of " deodorizing running rapidly " described later is selected.

In being arranged at the reefer space 80 of storeroom 71 downsides, under adiabatic partition wall 66, be provided with to left and right the ice-making compartment (not shown) and the first refrigerating chamber 84 that possess automatic ice-making plant.Downside at above-mentioned ice-making compartment and above-mentioned the first refrigerating chamber 84 is provided with the second refrigerating chamber 86.The front openings portion of above-mentioned ice-making compartment, above-mentioned the first refrigerating chamber 84 and above-mentioned refrigerating chamber 86, all can seal by drawer type door, is equipped on the accommodating container 88,89 of each 84,86 inside, chamber and opens the door to move and link and be drawn out.

At the rear portion of storeroom 71, be equipped with cover 98, between this cover 98 and the back side of refrigerator main body 65, be formed with pipeline 57.In this pipeline 57, be provided with cooler 52, refrigeration fan 53 and the light emitting diode 96 for refrigeration of the air in cold storage chamber 71.

As shown in Figure 6, refrigeration is heat exchangers of so-called pipe type with cooler 52, the heat exchanger of this pipe type possesses: two refrigerant pipe 52a, by copper pipe, formed and at internal flow cold-producing medium, this copper pipe forms, a plurality of line parts and a plurality of curve part are alternately set and along left and right (with respect to the paper of figure along front and back) complications; An end plate 52b, the both ends that keep these refrigerant pipes 52a; And a plurality of fin 52c, between above-mentioned both ends along the mutual arranged opposite of bearing of trend of the line part of above-mentioned a plurality of refrigerant pipe 52a.

The surface of a plurality of fin 52c of having with cooler 52 of refrigeration is covered by photocatalyst layer 52d, even if this photocatalyst layer 52d such as titanium oxide, platinum by the nitrogen that adulterates hold the photochemical catalyst of the visible-light response type that the light of such visible-range by 940～760nm such as titanium oxide also activates, forms.

Refrigeration in pipeline 57 is with near cooler 52, and for example the top position with cooler 52 in refrigeration, is equipped with and with the photocatalyst layer 52d on the fin 52c surface of cooler 52, irradiates the above-mentioned light emitting diode 96 of light to covering refrigeration.

The cover 98 above that forms pipeline 57 is that at least a portion receiving the position of the light irradiating from light emitting diode 96, is provided with the light transmission department 98a with transmitance.As shown in Figure 5, the light irradiating from light emitting diode 96 arrives in storeroom 71 by light transmission department 98a.

At the back side of reefer space 80, be provided with cooler chamber 81.In the inside of cooler chamber 81, take in and freezing the use cooler 54 and freezing with fan 55 of refrigeration with the identical pipe type of cooler 52.

Cooler 52 and freezing with cooler 54 for refrigeration, forms freeze cycle together with the compressor 51 of taking in, condenser 58, capillary (not shown), transfer valve (not shown) with the Machine Room 50 that is arranged on the lower backside of refrigerator main body 65.By utilizing above-mentioned transfer valve to switch refrigerant flow path, the cold-producing medium of discharging from compressor 51 thus is alternately supplied with to cooler 52,54 via condenser 58 and capillary.

During cooling refrigeration pattern in carrying out storeroom 71, the cold-producing medium of discharging from compressor 51 is supplied with cooler 52 to refrigeration via above-mentioned condenser 58 and above-mentioned capillary.So, make cooler 52 low temperatures for refrigeration, the refrigeration in pipeline 57 is cooled with near air cooler 52 thus.By cooler 52 cooling air for refrigeration, utilize refrigeration with fan 53 by pipeline 57 to storeroom 71 air-supplies, in to storeroom 71, carry out in cooling flowing.And above-mentioned air is taken in above-mentioned pipeline 57 from being arranged at the not shown suction inlet at the back side, bottom of storeroom 71, turns back to refrigeration and be again cooled with cooler 52.

During cooling frozen mode in carrying out reefer space 80, the cold-producing medium of discharging from compressor 51 is supplied with cooler 54 to freezing via above-mentioned condenser 58 and above-mentioned capillary, make above-mentioned freezing cooler 54 low temperatures of using, to the air in above-mentioned cooler chamber 81, carry out cooling thus.By freezing with the air in the cooling cooler chamber 81 of cooler 54, by above-mentioned freezing with fan 55 to above-mentioned ice-making compartment, the first refrigerating chamber 84 and the second refrigerating chamber 86 air-supplies, in to reefer space 80, carry out in cooling flowing.And then above-mentioned air turns back to cooler chamber 81 from being arranged at the not shown suction inlet at the back side of the second refrigerating chamber 86, again by freezing cooling with cooler 54.

In Machine Room, 50 the back side is provided with the control part 70 of the memory that possesses storage control program.The signal of this control part 70 based on inputting from door sensor 43, the such various sensors of the temperature inside the box sensor, according to the control program that is stored in above-mentioned memory, to compressor 51, fan 53 for refrigeration, freezingly control with fan 55, the such various electric components of above-mentioned transfer valve.

In the refrigerator 61 of above-mentioned formation, make to cover the photocatalyst layer 52d activation on above-mentioned a plurality of fin 52c surface of cooler 52 for above-mentioned refrigeration, old and feeble hormone, the decomposition object matter such as bacterium of swimming such as the contained odorous substance of the air in storeroom 71, ethylene gas are decomposed.In order to make photocatalyst layer 52d activation, the light emitting diode 96 that control part 70 makes to be arranged in pipeline 57 by pulsed drive is lighted, and photocatalyst layer 52d is irradiated to light.

Now, control part 70 is, when meeting rated condition as following illustration, for example, when the console switch 95 of user's operating operation panel 94 and while selecting " deodorizing running rapidly ", the dutycycle that dutycycle while changing to than common running (for example 71%) is large (for example 610%), the light quantity that makes to irradiate from light emitting diode 96 increases and further improves the decomposability of decomposing object material.

In this present embodiment, can make that above-mentioned photocatalyst layer 52d is irradiated to light by pulsed drive the above-mentioned light emitting diode 96 of its activation is lighted.Thereby, can adjust simply the power consumption of light emitting diode 96, can, according to the situation in the such case of the number of the decomposition object material in case, by suitable power consumption, drive light emitting diode 96.Thereby, can take into account the decomposability and the energy-efficient performance that decompose object material.

In the present embodiment, can by the operation of console switch 95, select to improve the running of dutycycle of the pulsed drive of light emitting diode 96, therefore can improve the decomposability of decomposing object material according to user's requirement, can improve use easness.

In addition, in the present embodiment, on the cover 98 above of formation pipeline 57, be provided with light transmission department 98a, so arrive in storeroom 71 by light transmission department 98a from the light of light emitting diode 96.Therefore, user can Visual Confirmation light emitting diode 96 when the opening the door of door 99 lights and deodorizing running that the decomposition object material in case is decomposed is carried out.

And, in the refrigerator 61 of present embodiment, can change by the dutycycle of change pulsed drive the light quantity of light emitting diode 96, the running intensity while adjusting deodorizing running.In this case, from the light of light emitting diode 96, by light transmission department 98a, arrive in storeroom 71, so user's running intensity during Visual Confirmation deodorizing running simply.

In the present embodiment, in refrigeration, on the surface with the fin 52c of cooler 52, be provided with the photocatalyst layer 52d that the photochemical catalyst by visible-light response type forms.Arrange visible-light response type photochemical catalyst hold body, so long as the such parts that the photochemical catalyst of visible-light response type can be set from the teeth outwards of porous ceramics.

In the present embodiment, the photochemical catalyst of visible-light response type is arranged in pipeline 57, but the configuration of this photochemical catalyst is so long as in the circulating path of the cold air in the inner space of refrigerator main body 65.

In the above-described first embodiment, when user selects " deodorizing running rapidly " by the operation of console switch 95, control part 70 large dutycycle while being set as than common running.Also can replace the operation of console switch 95 and become, when the switching of refrigerating-chamber door 99 being detected by door sensor 43, control part 70 large dutycycle while being set as than common running.

Particularly, control part 70 is, when the switching of refrigerating-chamber door 99 being detected by door sensor 43,, when detecting at closing time after the opening the door of refrigerating-chamber door 99, for example, in the stipulated time (2 hours) of closing the door from this detecting, make fan 53 rotation for refrigeration, and large dutycycle while being set as than common running (for example 80%) and light emitting diode 96 is carried out to pulsed drive.

In this refrigerator 61, large dutycycle when control part 70 is set as than common running after the switching of door 99, therefore can automatically with suitable light quantity, drive light emitting diode 96 by simple formation, can take into account the decomposability and the energy-efficient performance that decompose object material.

In this case, also can be, control part 70 by door sensor 43, detected refrigerating-chamber door 99 open the door during,, from detect opening the door of refrigerating-chamber door 99 play detect till closing the door during, refrigeration is stopped with fan 53, and identical dutycycle is carried out pulsed drive and it is lighted when with common running to light emitting diode 96.By this running, user simply Visual Confirmation carries out the situation that deodorizing is turned round.

In the above-described embodiment, control part 70 also can possess clockwork and can identify the current moment.By this formation, can regulation constantly during, for example during from 12 in the morning to 2 pm, the dutycycle of the pulsed drive of light emitting diode 96 is set as to 0%, light emitting diode 96 is extinguished.

In this case, can make energy-efficient performance have precedence over the decomposability of decomposing object material at the time of electricity supply and demand anxiety band, suppress the power consumption amount of refrigerator 61.

Then, with reference to Fig. 7, the 3rd embodiment is described.The refrigerator 61 of present embodiment possess after illustrative load detection portion, this load detection portion is detected the increase of the decomposition object material in storeroom, for example storeroom 71.When this load detection portion detects the increase of decomposing object material, the dutycycle during pulsed drive of control part 70 raising light emitting diodes 96.

Particularly, as shown in Figure 7, in storeroom 71, for example, in preservation of vegetables space 90, as above-mentioned load detection portion, be provided with the humidity sensor 60 that the humidity in storeroom 71 is detected, the testing result being detected by humidity sensor 60 is input to control part 70.

Control part 70 is, when the humidity being detected by humidity sensor 60 rises, be made as reserve and be put in storeroom 71 and decompose object material and increase, (for example 71%) large dutycycle while being set as than common running (for example 80%) and light emitting diode 96 is carried out to pulsed drive.

In the storeroom 71 of this present embodiment, can by simple formation judge decomposition object material in case number and with suitable light quantity, drive light emitting diode 96, can take into account the decomposability and the energy-efficient performance that decompose object material.

In the present embodiment, as above-mentioned load detection portion, use humidity sensor 60.Also can replace humidity sensor 60, and by infrared ray sensor, weight sensor, temperature sensor, the situation of the interior input reserve of subtend storeroom 71 detects, when dropping into reserve, be made as and decompose object material and increase, large dutycycle while being set as than common running and light emitting diode 96 is carried out to pulsed drive.

Several embodiments of the present invention are illustrated, and these embodiments are to point out as an example, are not intended scope of invention to limit.These new embodiments can be implemented with other variety of ways, in the scope of purport that does not depart from invention, can carry out various omissions, displacement, change.These embodiments and distortion thereof are contained in scope of invention, purport, and are contained in the invention that the scope of patent request records and the scope being equal to it.

The explanation of symbol:

1 ... refrigerator main body

7 ... refrigerating chamber

8 ... refrigerating chamber

12 ... the first cold air path

13 ... cooler

18 ... back side cover

19 ... the second cold air path

20 ... conduit component

20a, 20b ... heat insulating member

21 ... cold air passage portion

22 ... cold air blow-off outlet

23 ... the 3rd cold air path

30 ... air cleaning member

32 ... substrate

33 ... filter

34 ... the photochemical catalyst of visible-light response type

35 ... through hole

36 ... light source

37 ... connect oral area

38 ... light guide member

39 ... light guide body

40 ... cover

41 ... blank part

42 ... peristome

43 ... door sensor

50 ... Machine Room

51 ... compressor

52 ... refrigeration cooler

52c ... fin

52d ... photocatalyst layer

53 ... refrigeration fan

54 ... the freezing cooler of using

55 ... the freezing fan of using

57 ... pipeline

60 ... humidity sensor

61 ... refrigerator

62 ... outer container

63 ... interior case

64 ... foamed thermal insulating

65 ... refrigerator main body

66 ... adiabatic partition wall

70 ... control part

71 ... storeroom

94 ... guidance panel

95 ... console switch

96 ... light emitting diode

98 ... cover

98a ... light transmission department

99 ... refrigerating-chamber door

Claims (14)

1. a refrigerator, possesses:

Refrigerator main body, has storeroom;

Cold air path is set to be communicated with above-mentioned storeroom in this refrigerator main body, supplies by the cooling cold air flow of cooler;

Conduit component, forms and is arranged in above-mentioned cold air path by heat insulating member, has and supplies the cold air passage portion of mobile cold air flow in this cold air path and be arranged at the perforation oral area between this cold air passage portion and above-mentioned storeroom;

The photochemical catalyst of visible-light response type, is set to contact with cold air in above-mentioned cold air passage portion;

Light source, be arranged at this photochemical catalyst near, above-mentioned photochemical catalyst is irradiated to the visible ray of the light that comprises the wavelength that encourages above-mentioned photochemical catalyst; And

Light guide member, is arranged at above-mentioned perforation oral area, and the light sending from above-mentioned light source is guided to above-mentioned storeroom side.

2. refrigerator as claimed in claim 1, is characterized in that,

Above-mentioned light guide member is that the area of above-mentioned cold air passage portion side is less than the area of above-mentioned storeroom side.

3. refrigerator as claimed in claim 1 or 2, wherein,

Above-mentioned light guide member is, in inside, has blank part.

4. refrigerator as claimed in claim 3, wherein,

Above-mentioned light guide member has the cover that covers above-mentioned blank part from above-mentioned storeroom side.

5. the refrigerator as described in any one in claim 1,2,4, wherein,

Also be provided with cover, this covers in above-mentioned refrigerator main body and covers above-mentioned conduit component from above-mentioned storeroom side, and have the peristome arranging accordingly with above-mentioned light guide member, the aperture area of above-mentioned peristome forms to such an extent that be less than the area of the above-mentioned storeroom side of above-mentioned light guide member.

6. the refrigerator as described in any one in claim 1,2,4, wherein,

Also be provided with a plurality of substrates, the plurality of substrate has respectively the through hole for mobile cold air passes through in above-mentioned cold air passage portion, the state configuration of the plurality of substrate to report to the leadship after accomplishing a task with respect to the flow direction of cold air mobile in above-mentioned cold air passage portion under mutual opposed state, and the plurality of substrate puts respectively a plurality of light sources that comprise above-mentioned light source, above-mentioned light guide member is configured to be positioned at the position corresponding with the central portion of the overlapping direction of above-mentioned a plurality of substrates.

7. the refrigerator as described in any one in claim 1,2,4, wherein,

Above-mentioned cold air path has cold air mobile in this cold air path to the part blowing out in above-mentioned storeroom, above-mentioned photochemical catalyst, above-mentioned light source and above-mentioned light guide member be disposed at part that above-mentioned cold air is blown out near.

8. a refrigerator, possesses:

Storeroom;

Cooler;

Fan, makes the cold air being generated by above-mentioned cooler in above-mentioned storage indoor circulation;

The photochemical catalyst of visible-light response type, is configured in the circulating path of above-mentioned cold air;

Light emitting diode, irradiates light to above-mentioned photochemical catalyst; And

Control part, drives above-mentioned light emitting diode by pulse voltage.

9. refrigerator as claimed in claim 8, wherein,

Dutycycle when above-mentioned control part can improve above-mentioned light emitting diode driving.

10. refrigerator as claimed in claim 8 or 9, wherein,

Also possess console switch, this console switch is controlled above-mentioned control part, and the running of dutycycle when select improving above-mentioned light emitting diode and driving.

11. refrigerators as claimed in claim 8 or 9, wherein,

Above-mentioned control part is that, during the regulation moment, dutycycle when above-mentioned light emitting diode is driven is 0%, and above-mentioned light emitting diode is extinguished.

12. refrigerators as claimed in claim 8 or 9, wherein,

Between above-mentioned light emitting diode and above-mentioned storeroom side, be equipped with the cover of transmitance.

13. refrigerators as claimed in claim 8 or 9, wherein,

Also possess door sensor, this door sensor detects the switching of the door of above-mentioned storeroom,

When above-mentioned door sensor detects the switching of above-mentioned door, above-mentioned control part from above-mentioned door at closing time stipulated time, the dutycycle when improving above-mentioned light emitting diode and driving.

14. refrigerators as claimed in claim 8 or 9, wherein,

Also possess load detection portion, this load detection portion is detected decomposing the increase of object material,

When above-mentioned load detection portion detects the increase of decomposing object material, dutycycle when above-mentioned control part improves above-mentioned light emitting diode and drives.