CN1399113A

CN1399113A - Refrigerator

Info

Publication number: CN1399113A
Application number: CN02127364A
Authority: CN
Inventors: 冈田大信; 服部隆雄; 及川巧; 今久保贤治; 冈本武久
Original assignee: Toshiba Corp
Current assignee: Toshiba Lifestyle Products and Services Corp
Priority date: 2001-07-24
Filing date: 2002-07-23
Publication date: 2003-02-26
Anticipated expiration: 2022-07-23
Also published as: KR100507255B1; JP2003035486A; JP3864064B2; KR20030011589A; CN100406821C; TW587148B

Abstract

A refrigerator, where an optical catalyst assembly 29 is constituted by sequentially receiving a first electrode member 61, a spacer 63, an optical catalyst module 65, a spacer 64 and a second electrode member 62 in a receiving recess 71 of a first case 58 and, thereafter, fitting a receiving protrusion 79 of a second case 59 into the receiving recess 71. Accordingly, the mesh type electrodes 66, 68 of the first and second electrode members 61, 62 are fixed to the first and second cases 58, 59 under a condition that they are interposed between the spacers 63, 64 and the receiving recess 71 respectively. Thus, a distance between the mesh type electrodes 66, 68 will not be different partially and both of the mesh type electrodes 66, 68 are retained in parallel. The invention permits to obtain stabilized electric discharge by retaining a distance between mesh type electrodes in constant when the electric discharging means for a deodorizing device is constituted of a pair of mesh type electrodes.

Description

Refrigerator

Technical field

The present invention relates to deodorization device be configured in the circulating cold air path, to carrying out the refrigerator of deodorization in the case.

Background technology

In the past, in the family expenses refrigerator,, be the next door that platinum catalyst is configured in Defrost heater in order to reduce the various foul smell that cause because of the food in the case and to prevent that foul smell from shifting to other food.In addition, in domestic refrigerator in recent years, occurred a kind ofly being equipped with respectively cooler that refrigerating chamber and refrigerating chamber are cooled off, and setting humidity in the higher refrigerating chamber to improve the refrigerator of effect of food preservation.Like this,, then be more prone to produce the foul smell sense or, for this reason, in above-mentioned refrigerator, imported the deodorization device that has by the powerful deodorising effect of the oxygenolysis of ozone easily the assorted bacterium of refrigeration indoor propagation in case improve humidity in the refrigerating chamber.

Yet,, also can occur sometimes can not decomposing the phenomenon that is concentrated into middle decomposition product by complete oxidation because of the kind difference of deodorization composition even utilized the method for the oxygenolysis of ozone.When employing utilizes the method for oxidizing force of ozone, promote that the decomposition fully of vegetables, ethene that the fruit thing is aging is impossible fully again.

To this, the applicant has invented the refrigerator that disposes the deodorization device that the oxygenolysis and the ultraviolet photochemical catalyst effect of ozone are made up in case, and have ever made application (the special 2000-181518 of hope).The structure of described deodorization device is, discharged in the box body in the circulating path of mechanism, photocatalyst module, ozone decomposition catalyst filter deployment cold air in refrigerator in the space.

In this occasion, discharge mechanism in described space normally is made of a pair of mesh electrode that is configured in before and after the photocatalyst module.Thus, by using pair of electrodes photocatalyst module is sandwiched, thereby can expeditiously photochemical catalyst be encouraged.Again, netted by electrode is constituted, can reduce the pressure loss in the passage as far as possible.

But,, the distance of a pair of mesh electrode must be kept certain in order in space discharge mechanism, to obtain stable discharge.Yet mesh electrode is all extremely thin, and intensity is little, so be difficult to fix, might make interelectrode distance local different.

Again, photocatalyst module textural exist the gauge deviation big between the topic.For this reason, if the structure that adopts a pair of mesh electrode that photocatalyst module is sandwiched still is difficult to the distance of electrode is kept certain.Like this,, shelf depreciation will be produced, deodorizing performance can not be obtained effectively in case interelectrode distance is local different.

The present invention in view of the above problems, its purpose is, provide a kind of when constituting the structure of electric discharge device by a pair of mesh electrode, have a refrigerator that the distance between described mesh electrode is kept certain and can obtain the deodorization device of stable discharging.

Summary of the invention

The structure of the refrigerator of the present invention's the 1st technical scheme is to carry out the deodorization device that deodorization is used in disposing case in the circulating path of cold air, it is characterized in that, described deodorization device is made of the photochemical catalyst assembly, and the photochemical catalyst assembly is assembled by following member integraty: have a pair of mesh electrode of configured in parallel, by high-voltage discharge generation ozone and ultraviolet electric discharge device; The photocatalyst module that relies on photochemical catalyst effect that described ultraviolet ray irradiation produced, the foul smell composition that contains in the cold air and harmful substance etc. are decomposed; And the box body that contains described electric discharge device and described photocatalyst module, and described mesh electrode is separately fixed on the described box body.

Adopt said structure, owing to a pair of mesh electrode that can prevent configured in parallel rock make between described mesh electrode apart from local variation, therefore, can obtain stable discharge from electric discharge device.Again, though the gauge of mesh electrode is very little, weak strength, photocatalyst module is highly brittle, damages easily, adopts said structure, can under the state of photochemical catalyst assembly electric discharge device and photocatalyst module be assembled in the deodorization device.Thus, the photocatalyst module in the time of can preventing assembling operation and the breakage of mesh electrode.

In this occasion, can constitute described box body by the 1st box body and the 2nd box body, a pair of mesh electrode is sandwiched (the present invention's the 2nd technical scheme) by described the 1st box body and described the 2nd box body respectively.Adopt said structure, a pair of mesh electrode can be fixed on the box body reliably.

Again, also at least one side in the 1st and the 2nd box body can be made of the resettlement section with concavity, in described resettlement section, pack in order a side in a pair of mesh electrode, photocatalyst module, the opposing party's mesh electrode, the opposing party's box body constitute photochemical catalyst assembly (the present invention's the 3rd technical scheme).

Adopt said structure, can improve the assembling operation of photochemical catalyst assembly.Owing to use a pair of mesh electrode that photocatalyst module is sandwiched, therefore, the ultraviolet ray that high-voltage discharge produced by electric discharge device can be shone on the photocatalyst module expeditiously again.

And, also can between a pair of mesh electrode and photocatalyst module, set buffer component (the present invention's the 4th technical scheme) respectively.In this occasion, described buffer component can be made of (the 5th technical scheme) silicon rubber, also can be made of (the 6th technical scheme) foaming body, also can constitute hollow form (the 7th technical scheme).

Adopt said structure, a pair of mesh electrode can be fixed on the described box body being urged by buffer component under the state on the 1st and the 2nd box body respectively.Thus, the distance between mesh electrode can be guaranteed distance between the 1st box body and the 2nd box body.Can utilize described buffer component that the deviation of the gauge of described photocatalyst module is sponged again.

Also concavo-convex (the present invention's the 8th technical scheme) can be set on the face of the photocatalyst module side in the described buffer component again.Adopt said structure, because of reducing the contact portion of buffer component and photocatalyst module, so when photocatalyst module being sandwiched, can prevent described photocatalyst module breakage by buffer component.

And, also can on described box body, set the window portion (the present invention's the 9th technical scheme) that inside confirmation is used.Adopt said structure, whether the parts that can confirm to be housed in electric discharge device in the box body and photocatalyst module by described window portion defectiveness.

The simple declaration of accompanying drawing

Fig. 1 is the integrally-built vertical profile side view of refrigerator of expression the present invention the 1st embodiment.

Fig. 2 is the exploded perspective view of dividing plate and deodorization device.

Fig. 3 is the vertical profile side view of the deodorization device peripheral part in the dividing plate.

Fig. 4 is the vertical view of deodorization device.

Fig. 5 takes off the stereogram of deodorization device behind the lid state for expression.

Fig. 6 is the stereogram of lid.

Fig. 7 is the vertical profile front view of the deodorization device of XI-XI line in Fig. 4.

Fig. 8 is the exploded perspective view of photochemical catalyst assembly.

Fig. 9 links the stereogram of back state for expression step-up transformer and photochemical catalyst assembly.

Figure 10 is accommodating recess and accommodating the vertical profile ideograph of the peripheral part of protuberance in the expression photochemical catalyst assembly.

Figure 11 is the liner vertical view (a) of expression the present invention the 2nd embodiment, and along the cutaway view (b) of X2-X2 line.

Figure 12 is the liner vertical view (a) of expression the present invention the 3rd embodiment, and along the cutaway view (b) of X3-X3 line.

Figure 13 is the liner vertical view (a) of expression the present invention the 4th embodiment, and along the cutaway view (b) of X4-X4 line.

Figure 14 is the liner cutaway view of expression another embodiment of the present invention.

Implement optimal morphology of the present invention

Below, referring to figs. 1 through Figure 10 the 1st embodiment of the present invention is described.At first, Fig. 1 is the vertical profile side view of the refrigerator of expression present embodiment.Among Fig. 1, the inside of the refrigerator body 1 that is made of heat insulating box is divided into the refrigerating chamber 3 on top and the refrigerating chamber 4 of bottom by heat insulation partition wall 2.The refrigerator structure of present embodiment is, is separated into described refrigerating chamber 3 and refrigerating chamber 4 by described heat insulation partition wall 2, relies on by the cold air of special-purpose separately cooler (refrigerating chamber with cooler 3a, refrigerating chamber cooler 4a) generation inside is cooled off.In the present embodiment, be equipped with deodorization device 5 on the circulating path of the cold air in described refrigerating chamber 3, the structure with described refrigerating chamber 3 is that the center describes below.

That is, the bottom in described refrigerating chamber 3 is formed with vegetable compartment 7 by dividing plate 6, and portion in vegetable compartment 7 utilizes partition wall 8 to be formed with refrigerating chamber and uses cooler chamber 9.In described vegetable compartment 7, take in lower box body 10 and lift-launch upper cartridge body 11 on these lower box body 10 tops.On described upper cartridge body 11, be installed with and have the portal lid to be opened/closed 12 of 12a of cold airflow, between described lid 12 and described dividing plate 6, be formed with cold air path 13.

Bottom in described refrigerating chamber 3 is equipped with inclination box body 14, is formed with cold air path 15 between described inclination box body 14 and described dividing plate 6.And, in described refrigerating chamber 3 in portion and top, utilizing roughly, the passage lid 16 of L word shape is formed with cold air path 17.On described passage lid 16, be formed with a plurality of cold air taps 18.

Again, the top in described cooler chamber 9 is equipped with refrigerating chamber with fan assembly 19, with the top of this refrigerating chamber with the corresponding described partition wall 8 of fan assembly 19, be provided with cold air discharge portion 20 cylindraceous.The front end opening position of described cold air discharge portion 20 is in the described upper cartridge body 11, and the bottom in described cooler chamber 9 is equipped with described refrigerating chamber cooler 3a.And the front portion in described partition wall 8 bottoms is equipped with the cold air sucting inlet 22 of blind shaped.

Again, be formed with Machine Room 23 in the bottom of refrigerator body 1, portion is equipped with the compressor 24 that freeze cycle is used within it.Described compressor 24 is that a kind of (コ Application プモ-) is as the reciprocating structure of drive source with compressor electric motor.

In addition, the right back portion at described dividing plate 6 is equipped with described deodorization device 5.The structure of deodorization device 5 is described below with reference to Fig. 2 to Fig. 7.Deodorization device 5 comprises by box body body 25 and the box component 27 that the lid 26 that the top peristome of this box body body 25 covers is constituted, is configured in step-up transformer 28, photochemical catalyst assembly 29 and ozone decomposition catalyst 30 in the described box body body 25.

Left part in described box body body 25 utilizes partition wall 31 to be formed with transformer room 32, in the internal configurations of this transformer 32 described step-up transformer 28 is arranged.

Described step-up transformer 28 constitutes (all not shown) such as primary winding, secondary coil, magnetic cores by adopting synthetic resin to carry out model forming.Described step-up transformer 28 is by powering to the never illustrated primary side terminal of electric wire 33.Again, the right part in Fig. 2 of described step-up transformer 28 is protruding with a pair of secondary side terminal 34a, 34b, is provided with the 35a of the portion that surrounds, 35b with the tripartite コ word shape that surrounds around each secondary side terminal 34a, the 34b.And the top and the bottom of right part in Fig. 2 of described step-up transformer 28 are equipped with claw 36a, 36b.

The space except described transformer room 32 in the described box body body 25 makes cold air circulation chamber 37, the upright protection walls 38 that is provided with direction extension to the left and right in the front portion of its bottom.The height setting of described protection walls 38 be described box body body 25 height dimensions pact half.Again, the central portion of the fore-and-aft direction in described cold air circulation chamber 37 disposes described photochemical catalyst assembly 29, and the configuration section of the photochemical catalyst assembly 29 in box body body 25 bottoms is equipped with the rib 39 of locating usefulness.

Again, dispose described ozone decomposition catalyst 30, the grid frame portion 40 of the passage 40a with a plurality of square shapes is set in the bottom of this configuration section at the rear portion of cold air circulation chamber 37.Constitute the cross section shape triangular in shape of each frame section of described grid frame portion 40, with the area (with reference to Fig. 3 and Fig. 7) that reduces to contact as far as possible with ozone decomposition catalyst 30 bottoms.

Described ozone decomposition catalyst 30 for example is a kind of structure that is fixed with catalyst component in the core of the cellular thing of the pottery system of manganese oxide matrix (formed products) or honeycomb metal thing being made rectangular plate shape.Adopt this cellular thing structure, can guarantee bigger contact area between ozone decomposition catalyst 30 and ozone and the foul smell composition, improve decomposition efficiency.Described ozone decomposition catalyst 30 is configured in the grid frame portion 40, makes the ventilation direction of honeycomb shape become above-below direction.

In addition, the core of described ozone decomposition catalyst 30 is highly brittle, in a single day not noting contacting during assembling just has damaged possibility.For this reason, in the present embodiment, be wound with soft tape 30a, the breakage when preventing assembling operation at the peripheral part of described ozone decomposition catalyst 30.Again, with the configuration section of the ozone decomposition catalyst in the box body body 25 30 as grid frame portion 40.Thus, can prevent to point false touch is assembled in the ozone decomposition catalyst 30 in the box body body 25 (box component 27) and is stained with catalyst component or causes breakage.

On the other hand, the structure of described lid 30 is the upright lug boss of being located at below this 41 to be inserted lead in being arranged at the hole portion 42 of box body body 25, inserts screw 43 by spiral shell it is installed on the described box body body 25.In the front portion of described lid 30, be provided with the shutter 44 that extends downwards integrated, when being installed in described lid 30 on the box body body 25, the bottom of described shutter 44 is docked from the top with the leading section of box body body 25.Utilize described shutter 44 to prevent that foreign matter from entering housing unit 27.

Again, the back quadrate part of the described shutter 44 of vicinity in below described lid 30 is equipped with the whole protection walls 45 of extending of left and right directions.As shown in Figure 3, biasing shape configuration before and after the protection walls 38 of described protection walls 45 and box body body 25 sides is in housing unit 27.Thus, can not circulate by overslaugh cold air circulation chamber 37 interior cold air, prevent entering of foreign matter.And, when the lid 30 in below described lid 30 is installed on the box body body 25,, be equipped with 3 ozone pervasion components 46 that extend downwards in the position part that is positioned at above the described lid 30.And, be equipped with the rib 47 that extends downwards at the rear portion of described lid 30, set porose 48 at the central portion of the left and right directions of this rib 47.

Below, the structure of described dividing plate 6 is described with reference to Fig. 2 and Fig. 3.Part at the close rear of described dividing plate 6 right parts is formed with the installation recess 49 of the rectangular vessel shape of assembling deodorization device 5 usefulness.The both sides of the described installation recess 49 in described dividing plate 6 are equipped with not by deodorization device 5 ground and make circulation cold air in the case flow directly into the communication port 50 of vegetable compartment 7 usefulness from refrigerating chamber 3.Be equipped with described box component 27 described installation recess 49 latter half of, be provided with the apopore 51 of round shape and the opening 52 of square shape in its bottom.After box component 27 configured, the position of described opening 52 was in the bottom of described grid frame portion 40.

Be provided with inclined plane 53 in the front portion of described installation recess 49 again.And the front portion at the position, shutter 44 place of the box component 27 in the bottom of described installation recess 49 is formed with the apopore 54 of oval shape.Described apopore 54 be for when user mistake is sprinkled upon lanes such as water in the case, can prevent that this water etc. from entering in the box component 27.And, be formed with rib 55 at described installation recess 49 latter half of circumferences.Described rib 55 also is to be used for anti-sealing etc. to enter in the box component 27 from periphery.

Described box component 27 inserts from the top with clasp nail 57 by after the hole (not shown) that is arranged at installation recess 49 rear sides is aimed at by the hole portion 48 of described lid 30, described box component 27 is installed in installs in the recess 49.

The following describes the structure of photochemical catalyst assembly 29, Fig. 8 is the exploded perspective view of photochemical catalyst assembly 29, and Fig. 9 is the stereogram that expression photochemical catalyst assembly 29 and step-up transformer 28 link the back state.In Fig. 8 and Fig. 9, photochemical catalyst assembly 29 comprises: the box body 60 that is made of the 1st box body 58 and the 2nd box body 59; Be housed in the described box body 60, as the 1st and the 2nd electrode member 61,62 of electric discharge device;

Liner

63,64 as buffer component; And photocatalyst module 65.Described the 1st electrode member 61 is made of the mesh electrode 66 of fringing on rectangle frame 66a and the terminal board 67 that is arranged at the upper left quarter among Fig. 8 of described rectangle frame 66a.Again, the 2nd electrode member 62 is made of greater than the mesh electrode 68 of described mesh electrode 66 and the terminal board 69 that is arranged at the lower left quarter among Fig. 8 of described rectangle frame 68a fringing on rectangle frame 68a, mesh.

Described

liner

63,64 all is that the silicon rubber by flame retardancy constitutes, and constitute have about side by side the 63a of window portion, the box-shaped body of 64a of 2 rectangles.Described

liner

63,64 is a black, to distinguish mutually with the photocatalyst module 65 of white easily.It is identical substantially with rectangle frame 61a, the 62a shape of the described the 1st and the 2nd electrode member 61,62 that part the described window 63a of portion, the 64a part in dividing described

liner

63,64 constitutes.On the face of photocatalyst module 65 sides in described

liner

63,64, be equipped with a plurality of protuberances 70 (protuberance 70 of in Fig. 8, only having represented liner 63).

The structure of described photocatalyst module 65 is, the surface of the core of the rectangular plate shape that constitutes at the pottery (aluminium, silica) by porous matter shape scribbles the photocatalyst material of titanium dioxide etc., fixes by drying or sintering.The left and right directions of the

mesh electrode

66,68 of the described the 1st and the 2nd electrode member 61,62,

liner

63,64, photocatalyst module 65 and the length dimension of above-below direction all are set at roughly the same.

Described the 1st box body 58 has the

terminal arrangement portion

72,73 of accommodating recess 71 and being equipped on a pair of concavity of the left part among this Fig. 8 that accommodates recess 71 of top opening.Accommodate on the recess 71 described, contain mesh electrode 66, liner 63, the photocatalyst module 65 of the 1st electrode member 61, the mesh electrode 68 of liner the 64, the 2nd electrode member 62 in order.In described

terminal arrangement portion

72,73, dispose the

terminal board

67,69 of the 1st electrode member 61 and the 2nd electrode member 62 separately again.Lower face in described Fig. 8 that accommodates recess 71, about be equipped with the 71a of window portion of the roughly square shape corresponding side by side with the 63a of window portion, the 64a of described

liner

63,64.

Again, the front and back sidepiece among the Fig. 8 that accommodates recess 71 in described the 1st box body 58 is equipped with location indentations 74 and a pair of fitting portion 75 (location indentations 74 of only having represented front side portion in Fig. 8) separately.And the right side in Fig. 8 that accommodates recess 71 of the 1st box body 58 is provided with location indentations 76.One is provided with otch 75a, elastically deformable about described fitting portion 75.

Again, the left part of the front and back sidepiece among Fig. 8 of each the

terminal arrangement portion

72,73 in the 1st box body 58 is provided with

fitting portion

77,78 separately.The right side of described

fitting portion

77,78 is respectively equipped with

otch

77a, 78a, elastically deformable.

Described the 2nd top of box body 59 from Fig. 8 embeds in the 1st box body 58, by with described accommodate that recess is 71 corresponding, the below is convex accommodate protuberance 79 and constitute with each 72,73 80,81 in terminal arrangement portion corresponding, that the below is convex of terminal arrangement portion.Lower face in described Fig. 8 that accommodates protuberance 79, about be provided with the 79a of window portion of the square shape relative side by side with the described window 71a of portion.Again, described in the 2nd housing 59 accommodated front and back sidepiece and the right side among Fig. 8 of protuberance 79, is provided with respectively the

positioning convex portion

82,83 corresponding with described location indentations 74,76.And the front and back sidepiece of the front and back sidepiece among the Fig. 8 that accommodates protuberance 79 in the 2nd box body 59 and each

terminal arrangement portion

80,81 is provided with the claw 84～86 corresponding with described

fitting portion

75,77,78.One is provided with otch 84a～86a, elastically deformable respectively about described claw 84～86.

In addition, in the terminal arrangement portion 72 of described the 1st box body 58, dispose the terminal board 67 of the 1st electrode member 61, accommodating on the recess 71 simultaneously, contain mesh electrode 66, liner 63, the photocatalyst module 65 of the 1st electrode member 61, the mesh electrode 68 of liner the 64, the 2nd electrode member 62 according to priority, and, after the terminal board 69 with the 2nd electrode member 62 is configured in the terminal arrangement portion 73, the 2nd box body 59 is embedded in the 1st box body 58, claw 84～86 is chimeric with

fitting portion

75,77,78 respectively, constitute photochemical catalyst assembly 29.

At this moment, can see clearly in the box body 60 by fitting portion 75.Thus, even after assembling photochemical catalyst assembly 29, also can easily confirm to have or not defective work.

By positioning

convex portion

82,83 is engaged with

location indentations

74,76, thereby guarantee accommodating recess 71 and accommodating the space of regulation between the protuberance 79 again.The size that described space the is set gauge overlapping with making mesh electrode 66, liner 63, photocatalyst module 65, liner 64, mesh electrode 68 is roughly the same, consequently, mesh electrode 66, liner 63, photocatalyst module 65, liner 64, mesh electrode 68 can be by overcompression, and the state that can be held between the 1st and the

2nd box body

58,59 is fixed.Adopt said structure, when the 2nd box body 59 is embedded the 1st box body 58, can prevent to be highly brittle, bad photocatalyst module 65 breakages easily as far as possible.

Figure 10 be in the modal representation photochemical catalyst assembly 29 by accommodating recess 71 and accommodating the part longitudinal section of protuberance 79 clampings.As shown in figure 10, in accommodating recess 71 and accommodating space between the protuberance 79, photocatalyst module 65 is between the

mesh electrode

66,68 of configured in parallel.And because described space is set to above-mentioned size, therefore, each

mesh electrode

66,68 is pressed against respectively on the 1st and the

2nd box body

58,59 by liner 63,64.Like this,

mesh electrode

66,68 is held in the state that local difference can not appear in mutual distance abreast.

But, photocatalyst module 65 is in the textural deviation that can strengthen gauge, yet in the present embodiment, owing in

liner

63,64 with on the face that photocatalyst module 65 contacts, be equipped with protuberance 70, therefore, can absorb the deviation of the gauge of photocatalyst module 65,, can prevent that also local difference from appearring in the distance between the

mesh electrode

66,68 from this point.

As Fig. 2 and shown in Figure 9,, constitute respectively with terminal arrangement portion 72 and terminal arrangement portion 80 and terminal arrangement portion 73 and the 81 chimeric pair of terminal portions that form 87,88 of terminal arrangement portion at the left part of photochemical catalyst assembly 29 again.At this moment,, be inserted with secondary side terminal 34a, the 34b of described step-up transformer 28, be formed with the described the 1st terminal that is connected with the

terminal board

67,69 of the 2nd electrode member 61,62 and insert mouthful (not shown) at the front end of described portion of

terminal

87,88.

Like this, inserting described terminal by secondary side terminal 34a, 34b with described step-up transformer 28 inserts mouth, will surround in the 35a of portion, the 35b embedding portion of

terminal

87,88 simultaneously, with described secondary side terminal 34a, 34b respectively with state that

terminal board

67,69 is connected under, step-up transformer 28 and photochemical catalyst assembly 29 are linked.At this moment, claw 36a, the 36b of described step-up transformer 28 engage with otch 77a, the 78a in the outside of the portion of

terminal

87,88 that is positioned at photochemical catalyst assembly 29.

Described step-up transformer 28 and photochemical catalyst assembly 29 are configured on transformer room 32 and the cold air circulation chamber 37 with the state that links, and the 1st box body 58 is positioned at anterior position.At this moment, the right part of the described photochemical catalyst assembly 29 in the cold air circulation chamber 37 is formed with bypass pipe 89, and the effect of this bypass pipe 89 is to make the cold air can not be by this photochemical catalyst assembly 29 and towards the rear (with reference to Fig. 4).

In addition, fitting portion 75 is arranged in the top of the photochemical catalyst assembly 29 that is configured in cold air circulation chamber 37.Thus, even after being arranged on photochemical catalyst assembly 29 in the cold air circulation chamber 37, also can reaffirm in the box body 60 to have or not defective work.

And, discharge by between mesh electrode, applying high tension voltage by step-up transformer 28, ultraviolet ray (wavelength 380nm is following) and ozone take place.

The effect of present embodiment is described below with reference to Fig. 1, Fig. 3, Fig. 4 and Fig. 7.In the refrigerator of present embodiment, use not shown control device, the temperature set information of the relevant refrigerating chamber 3 of root a tree name and temperature information, the refrigeration temperature information of cooler 3a, the temperature set information of relevant refrigerating chamber 4 and the running that temperature information, the freezing temperature information of using cooler 4a etc. are controlled compressor 24 and deodorization device 5 etc.And, cooling off when running being judged as refrigerating chamber 3, described control device will be supplied with cooler 3a to refrigeration by the cold-producing medium that described compressor 24 is discharged, and simultaneously described refrigeration is with fan assembly 19 and 5 entrys into service of described deodorization device.

Like this, shown in the arrow among Fig. 1, a part of cold air in the cooler chamber 9 are discharged in upper cartridge body 11 from cold air discharge portion 20, emit in cold air path 13 by the cold airflow 12a that portals.The cold air of in cold air path 13, discharging along the front of lower box body 10 and below flow, return in the cooler chamber 9 by cold air sucting inlet 22.

In addition, the residual cold air in the cooler chamber 9 rises by cold air path 17, discharges in refrigerating chamber 3 from the upper end of cold air tap 18 and cold air path 17.The cold air of discharging in refrigerating chamber 3 is by the cold air path 15 of inclination box body 14 belows, and major part flows directly into vegetable compartment 7 by communication port 50 and the apopore 51 that is formed at dividing plate 6.And, pass through the cold air circulation chamber 37 that shutter 44 flows into deodorization devices 5 by the residual cold air of cold air path 15.

The a part of cold air that flows into cold air circulation chamber 37 arrives ozone decomposition catalyst 30 by after the photochemical catalyst assembly 299.Again, the residual cold air that flows into cold air circulation chamber 37 arrives ozone decomposition catalyst 30 by bypass pipe 89 again by after the photochemical catalyst assembly 29.

In photochemical catalyst assembly 29, discharge by between

mesh electrode

66,68, applying high tension voltage by step-up transformer 28, ultraviolet ray (wavelength 380nm is following) and ozone take place.And in case this ultraviolet ray shines photocatalyst module 65, then titanium dioxide is accepted this ultraviolet luminous energy and is with actively, and the effect of generation photochemical catalyst is with the foul smell composition and the ethylene gas decomposition of the ammonia that contains in the cold air etc.Particularly in the present embodiment, because of between

mesh electrode

66,68, disposing photocatalyst module 65, so direction-free ultraviolet ray can act on photocatalyst module 65 effectively.

Again, the ozone that is taken place by high-voltage discharge arrives ozone decomposition catalyst 30 with cold air by photochemical catalyst assembly 29 and the cold air by bypass pipe 89.At this moment, though a side of photochemical catalyst assembly 29 is littler than the width dimensions of ozone decomposition catalyst 30, utilization is disposed at the ozone pervasion component 46 below the lid 26, is flooded to the integral body of ozone decomposition catalyst 30 by the ozone of photochemical catalyst assembly 29 generations.Ozone decomposition catalyst 30 decomposes ozone and active oxygen gas takes place, and utilizes the oxidizing force of this active oxygen gas, with the foul smell composition oxidation Decomposition of the amine system contained in the cold air and ammonia etc.That is, the ethylene gas in the cold air decomposes in photocatalyst module 65, and the foul smell composition of amine system and ammonia etc. decomposes in the both sides of photocatalyst module 65 and ozone decomposition catalyst 30.

But the structure of present embodiment is, is equipped with bypass pipe 89 in cold air circulation chamber 37, has only by a part of cold air in the cold air circulation chamber 37 by photochemical catalyst assembly 29.This is because in case set the photochemical catalyst assembly 29 that the integral body in the cold air circulation chamber 37 is stopped up, though can strengthen photocatalyst module 65, because of the pressure loss that increases in the cold air circulation chamber 37 reduces air quantity, thereby cause comprehensive deodorizing performance to descend.To this, in the present embodiment,,, therefore, can improve the deodorizing performance of deodorization device 5 to increase the air quantity in the cold air circulation chamber 37 owing to set bypass pipe 89.

Cold air after deodorization device 5 deodorizations flows into vegetable compartment 7 by the passage 40a and the opening 52 of grid frame portion 40.And, by cold air path 13 again along the front of lower box body 10 and below flow after, return cooler chamber 9 by cold air sucting inlet 22.

Adopt the present embodiment of this structure, owing to being fixed into by

liner

63,64, a pair of

mesh electrode

66,68 presses against on the 1st and the

2nd box body

58,59, therefore, the distance that can as far as possible avoid a pair of

mesh electrode

66,68 to collide between this

mesh electrode

66,68 that causes changes.Like this, because of obtaining stable discharge, so can improve deodorizing performance and oxidation Decomposition performance from

mesh electrode

66,68.

But, in case local close between the

mesh electrode

66,68, then can cause shelf depreciation in this part, produce local friction.Adopt said structure, because of preventing to produce the discharge of this part, so can improve long-term reliability.

Again, in case the material of

liner

63,64, be that silicon rubber has the character that the level that improves flame retardancy will hardening, but in the present embodiment, on

liner

63,64, be equipped with protuberance 70, can reduce the contact area of

liner

63,64 and photocatalyst module 65.Thus, when being assembled in photocatalyst module 65 grades in the box body 60, because of being difficult to apply big power, so can prevent the breakage of photocatalyst module 65 to photocatalyst module 65 integral body.

And, the structure of present embodiment is to set to accommodate recess 71 on the 1st box body 58, accommodate in the recess 71 described, that assembles mesh electrode 66, liner 63, photocatalyst module 65, liner 64, mesh electrode the 68, the 2nd box body 59 according to priority accommodates protuberance 79, constitutes photochemical catalyst assembly 29.Thus, can improve the assembling operation of photochemical catalyst assembly 29.

Again, the structure of present embodiment is, step-up transformer 28 and photochemical catalyst assembly 29 are configured in respectively in the transformer room 32 and cold air circulation chamber 37 in the box component 27, constitutes deodorization device 5.Thus, described box component 27 is taken out from refrigerator body 1, can carry out the repairing of deodorization device 5 and check operation etc., can improve operation.

Again, its structure is that the upstream configuration photochemical catalyst assembly 29 of the ozone decomposition catalyst 30 in cold air circulation chamber 37 will flow out the passage 40a of cold air with ozone decomposition catalyst 30 obstructions from cold air circulation chamber 37 simultaneously.Thus, all ozone that taken place by photochemical catalyst assembly 29 can be decomposed towards ozone decomposition catalyst 30 expeditiously, so can prevent as far as possible that ozone from flowing out in the case from deodorization device 5.

Step-up transformer 28 has adopted the structure that is shaped by model.Thus, can not make each component corrosion of described step-up transformer 28 because of the ozone that in photochemical catalyst assembly 29, takes place.Thereby, can utilize this point can make deodorization device 5 miniaturizations step-up transformer 28 and the 29 contiguous shape configurations of photochemical catalyst assembly.With dividing into transformer room 32 and cold air circulation chamber 37 in the deodorization device 5, step-up transformer 28 is configured in the described transformer room 32 again.Thus, give electric wire 33 and the ozone that circulates in the cold air circulation chamber 37 that extend from step-up transformer 28 can be separated.Like this, can prevent to corrode to wearing out that electric wire 33 causes because of ozone as far as possible.

In box component 27, be provided with the

protection walls

38,45 of biasing shape configuration again.Therefore, even the situation that the foreign matter A of the needle bar shape shown in the double dot dash line among Fig. 3 for example is inserted into box component 27 occurred, can prevent as far as possible that also this foreign matter A from arriving the

mesh electrode

66,68 of photochemical catalyst assembly 29 and causing electric shock.

Particularly in deodorization device 5, owing to the utmost point (low potential side) is arranged on user side (air-flow inflow side) in the electric discharge device, sparking electrode is provided in the side (air stream outlet side) that user's hand does not directly reach, therefore, can prevent just in case the occasion (insertion of needle bar etc.) of user's hand contact and the electric shock that causes.

Figure 11 to Figure 14 represents other several embodiment of the present invention, and these embodiment and the 1st embodiment are different in the configuration aspects of liner.That is, in the 2nd embodiment shown in Figure 11, liner 91 has whole the convex strip portions 92 that extends to photocatalyst module 65 sides.Again, in the 3rd embodiment shown in Figure 12, liner 101 has a plurality of recesses 102 on the face of photocatalyst module 65 sides.

Because on liner 91,101 with this convex strip portions 92 and recess 102, also can reduce contact area with photocatalyst module 65, therefore, when being assembled in photocatalyst module 65 in the box body 60, can prevent to cause breakage the applying big power on the whole of photocatalyst module 65.

Again, in the 4th embodiment shown in Figure 13, liner 111 makes hollow form.In this occasion, the shape of described liner 111 roughly rectangle frame 66a, the 68a with

mesh electrode

66,68 is identical.Adopt said structure, can improve the elasticity of liner 111.Thus, can remedy the insufficient section that the level because of the flame retardancy that improves silicon rubber causes hardness to increase.

In addition, on the liner 111 of hollow form, also include the cross sectional shape body of a part of opening shown in Figure 14 (a) to (c).In this occasion, at the top of Fig. 14 (a) to (c) configuration photocatalyst module 65.

Promptly, for example at Figure 14 (a) with (b), owing to formed by rectangle frame 66a, the 68a of the

mesh electrode

66,68 of the lower position of the figure that is arranged in liner 111 state that the opening portion of liner 111 stops up, therefore, can obtain effect and the effect the same with the 4th embodiment.Again, in Figure 14 (c), therefore the state of recess 71 with the opening portion obstruction of liner 111 of accommodating owing to having formed by the 1st box body 58 of the side locations that is positioned at liner 111, can obtain effect and the effect the same with the 4th embodiment.

Again, the present invention is not limited to embodiment above-mentioned and shown in the drawings, for example can do following distortion and expansion.

The shape of the 1st and the 2nd box body is not limited to diagram.For example, also the resettlement section of concavity can be provided in the side in the 1st and the 2nd box body, with the opposing party as flat lid.

The dividing plate 6 that the configuration place of deodorization device is not limited to refrigerating chamber 3 bottoms can suitably change.Also can be provided in the circulating path of the cold air in the refrigerating chamber again.

Ozone decomposition catalyst also can adopt the structure that the part of the cold air path in the passage is stopped up.That is, even flow out in the case of ozone outside passage by the electric discharge device generation, so long as the problem on just not existing safely in right amount.Again, adopt this structure,, have to the antibiotic effect of the performance of the food in the case, so can keep the freshness of food effectively because of having utilized the ozone that in case, spreads.

From above-mentioned explanation as can be seen, adopt refrigerator of the present invention, in case cold air circulates in case and flows in the deodorization device, because of this cold air passes through the photochemical catalyst assembly, so can utilize the ultraviolet photochemical catalyst that takes place by high-voltage discharge to be used for decomposing ethene and foul smell composition thereof.Again, also ozone can take place because of utilizing high-voltage discharge, so can rely on the oxidizing force that decomposes the active oxygen that this ozone took place to come the decompose odor composition.At this moment, be fixed on the box body of photochemical catalyst assembly, the distance between mesh electrode can be kept certain, therefore, can obtain stable discharge, can improve deodorizing performance and oxidation Decomposition performance from electric discharge device owing to will constitute the mesh electrode of electric discharge device.

Claims

1. refrigerator is the structure that the deodorization device that deodorization uses is carried out in configuration in to case in the circulating path of cold air, it is characterized in that,

Described deodorization device is made of the photochemical catalyst assembly, and the photochemical catalyst assembly is assembled by following member integraty: have a pair of mesh electrode of configured in parallel, by high-voltage discharge generation ozone and ultraviolet electric discharge device; The photocatalyst module that relies on photochemical catalyst effect that described ultraviolet ray irradiation produced and the foul smell composition that contains in the cold air and harmful substance etc. are decomposed; And the box body that contains described electric discharge device and described photocatalyst module,

Described mesh electrode is separately fixed on the described box body.

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

Box body is made of the 1st box body and the 2nd box body,

A pair of mesh electrode is sandwiched by described the 1st box body and described the 2nd box body respectively.

3. refrigerator as claimed in claim 2, it is characterized in that, at least one side in the 1st and the 2nd box body is made of the resettlement section with concavity, in described resettlement section, pack in order a side in a pair of mesh electrode, photocatalyst module, the opposing party's mesh electrode, the opposing party's box body constitute the photochemical catalyst assembly.

4. refrigerator as claimed in claim 3 is characterized in that, sets buffer component between a pair of mesh electrode and photocatalyst module respectively.

5. refrigerator as claimed in claim 4 is characterized in that buffer component is made of silicon rubber.

6. as claim 4 or 5 described refrigerators, it is characterized in that buffer component is made of foaming body.

7. as claim 4 or 5 described refrigerators, it is characterized in that buffer component constitutes hollow form.

8. as claim 4 or 5 described refrigerators, it is characterized in that, be provided with concavo-convex on the face of the photocatalyst module side in described buffer component.

9. as each described refrigerator in the claim 1 to 8, it is characterized in that, on described box body, set the window portion that inside confirmation is used.