CN1213063A

CN1213063A - Electric refrigerator

Info

Publication number: CN1213063A
Application number: CN98120739A
Authority: CN
Inventors: 冈本武久; 牛之滨慎哉; 东口惠一; 藤本健一; 石川义亲
Original assignee: Toshiba Corp
Current assignee: Toshiba Lifestyle Products and Services Corp
Priority date: 1997-09-26
Filing date: 1998-09-25
Publication date: 1999-04-07
Anticipated expiration: 2018-09-25
Also published as: KR19990029244A; KR100299369B1; JPH1194434A; CN1135345C; JP3510770B2

Abstract

The invention relates to a refrigerator. An insulating partitioning wall 11, having integrally with a return duct for a V chamber, is mounted previously in the forming process of an insulating box body 2, then, both side rims of the insulating partitioning wall 11 are adhered and fixed strongly to the inside wall of an inner box 3 by the foaming pressure of expandable heat insulating material. A cooler 19 and a cold air flowing mechanism 20 are incorporated into an incorporating space 34, formed behind the insulating partitioning wall 11.

Description

Refrigerator

The present invention relates to refrigerating chamber is configured in the so-called bottom cooled refrigerator of foot in the body of thermal insulating box, relate in particular to the package assembly of cooler circumferential component.

In the household electric refrigerator, normally refrigerating chamber is configured in middle level or upper strata, in recent years, also developed refrigerating chamber be configured in lower floor, the so-called bottom cooled refrigerator of middle level as vegetable compartment.In this case, in refrigerator, cooler and circumferential component thereof (the cold air circulation mechanism that is made of fan assembly, cool-air feed pipe, retaining device etc.) can be provided in the backing face portion (inner face side of interior case) of refrigerating chamber.But, for above-mentioned bottom cooled refrigerator, because in the rear side bottom of body, the Machine Room that compressor etc. is housed is being set, so, must be with the equipping position of cooler and fan assembly etc. correspondingly toward the top changing of the relative positions.Therefore, must cooler and fan assembly etc. be set at the height place of crossing over the adiabatic partition wall of separating vegetable compartment and refrigerating chamber up and down up and down.

Therefore, in the cooled refrigerator of existing bottom, for example disclose as Japanese kokai publication hei 8-247638 communique, the adiabatic partition wall of separating vegetable compartment and refrigerating chamber is divided into front and back two parts, be installed in the 1st partition wall of toe lateral wherein on the body of thermal insulating box in advance, the space segment that utilizes the 2nd partition wall not install as yet and vacate carries out the assembling operation of cooler and circumferential component thereof.Then, the 2nd partition wall of rear portion side is installed, is constituted whole adiabatic partition wall.

Because the temperature of vegetable compartment and refrigerating chamber is very different, so require sealing highly between the circumference of the adiabatic partition wall that their are separated and the body of thermal insulating box internal face.But, above-mentioned spy opens in the technology of flat 8-247638 communique announcement, though the 1st partition wall in the adiabatic partition wall, can when the foamed thermal insulating foaming of body of thermal insulating box, install in advance, thereby can obtain connecting airtight property of height and anchorage between the 1st partition wall side edge part and the body of thermal insulating box (interior case) by means of foaming, but, because the 2nd partition wall is releasably installed after the foamed thermal insulating foaming, so, connecting airtight property between the 2nd partition wall and the body of thermal insulating box is poor, if do not take measures then can not obtain enough sealings, to take to be provided with in addition sealing countermeasures such as seal for this reason.

In addition, in the above-mentioned prior art, adiabatic partition wall is divided into two parts, and a part is wherein releasably installed, so, the structure more complicated, its assembleability may not be good.Simultaneously, in when maintenance,, then can not carry out the inspection, part exchanging of cooler and cold air circulation mechanism etc. if do not unload the 2nd partition wall earlier.Maintainability is poor.

In addition, except above-mentioned cold air circulation mechanism, the backing portion in body of thermal insulating box also is provided with the recurrent canal that is used for the air in the vegetable compartment is returned the cooler lower portion.Formation method as this recurrent canal, in the prior art, be that tubular body is installed on the interior case in advance, filling foamed thermal insulating around it again, recurrent canal is embedded in the body of thermal insulating box, perhaps, the recurrent canal that the lower end is curved about L font forms parts and is installed on the body of thermal insulating box, thus and interior case inner face between form recurrent canal.

But, in the former approach, be to form recurrent canal in the body of thermal insulating box by tubular body is embedded in, so must on interior case, form the peristome of accommodating this tubular body so that tubular body is installed, in addition, during foaming, must carry out the sealing of tubular body end face and interior case peristome etc.So complex structure, assembleability is poor, and tubular body is not easy to guarantee the required path basal area of recurrent canal because of the blow pressure of foamed thermal insulating might be out of shape.On the other hand, in latter's method, be recurrent canal to be formed parts be installed in interior case inner face, form enough sealings between parts and the interior case in order to obtain recurrent canal, encapsulant etc. must be set, still exist the problem of complex structure.

The present invention makes in view of the above problems, its purpose is to provide a kind of refrigerator, in this refrigerator, at the height and position of crossing over adiabatic partition wall up and down cooler and cold air path are set, can guarantee the high leakproofness between adiabatic partition wall and the body of thermal insulating box internal face, and improve assembleability and maintainability, make the simple structureization of recurrent canal.

The refrigerator of claim 1 of the present invention, the body of thermal insulating box inside of opening in front, be separated into several different storerooms of temperature up and down with adiabatic partition wall, side surface side in body of thermal insulating box, at the height and position place of crossing over above-mentioned adiabatic partition wall up and down, cooler is set and the mechanism of will circulating from the cold air that the cold air that this cooler comes out is sent; It is characterized in that: can be under adiabatic partition wall be installed in state in the body of thermal insulating box, above-mentioned cooler and the parts that constitute cold air circulation mechanism are assembled in the assembling space that is formed between this body of thermal insulating box inner face and this thermal insulation partition wall; On above-mentioned adiabatic partition wall,, be provided with the recurrent canal that the air in the storeroom on this thermal insulation partition wall top is returned above-mentioned quencher moiety integratedly at the sidepiece of above-mentioned assembling space.

Like this, under adiabatic partition wall is installed in state in the body of thermal insulating box, between this body of thermal insulating box inner face and adiabatic partition wall, form assembling space portion, cooler and the parts that constitute cold air circulation mechanism can be assembled in this assembling space.Therefore, at the height place of crossing over adiabatic partition wall up and down, assembling cooler and cold air circulation mechanism does not carry out post processing again so will the thermal insulation partition wall be divided into two parts, can be installed in adiabatic partition wall in the body of thermal insulating box operation of foaming again in advance.

In addition, air in the storeroom of adiabatic partition wall top is returned the recurrent canal of quencher moiety, sidepiece at assembling space, be arranged on integratedly on the adiabatic partition wall, so, with be embedded in recurrent canal in the body of thermal insulating box or the prior art that other recurrent canal forms parts be installed compare, can make simple structureization.

The refrigerator of claim 2 of the present invention is provided with adiabatic partition wall in body of thermal insulating box, thereby forms refrigerating chamber in the bottom of this thermal insulation partition wall, and on the top of this thermal insulation partition wall, the formation temperature band is higher than the storeroom of refrigerating chamber; It is characterized in that: on above-mentioned adiabatic partition wall, the recurrent canal that the air of above-mentioned storeroom is returned the below by this thermal insulation partition wall is set integratedly.

Like this, refrigerating chamber is formed at the bottom at adiabatic partition wall, and, top at this thermal insulation partition wall, form the storeroom of high-temperature, so must make the air of the storeroom of upper side return the below by adiabatic partition wall, owing to the recurrent canal that is provided with like this can be located on the adiabatic partition wall integratedly, thereby can make simple structure.

At this moment, can make recurrent canal be positioned at portion's (invention of claim 3) in face of the backing of body of thermal insulating box.Like this, can carry out processing such as perforate on the backing face of body of thermal insulating box.

In addition, can make the upper end inlet portion of recurrent canal protruding upward above adiabatic partition wall, and towards front side decline inclination (invention of claim 4).Like this, can prevent to fall the inlet portion that stops up recurrent canal because of the reserve in the storeroom of adiabatic partition wall top.

In addition, the lower end export department of recurrent canal is also configurable near the top of defrosting heater, and this defrosting heater is located at the below (invention of claim 5) of cooler.Like this, though frosting in the recurrent canal, also can be by the heat defrosting of Defrost heater.

And recurrent canal can be the straight tube-like (invention of claim 6) of extending along the vertical direction.Like this, the formation of recurrent canal is more prone to.

In addition, the storeroom in the body of thermal insulating box can be by the refrigerating chamber of adiabatic partition wall lower side, the refrigerating chamber and the vegetable compartment that are located at above-mentioned adiabatic partition wall upper side up and down constitute (invention of claim 7).Like this, because vegetable compartment is positioned at about stage casing of body of thermal insulating box, so picking and placeing of vegetables is easy.

Fig. 1 represents one embodiment of the invention, is the vertical profile side view of its major part.

Fig. 2 is the vertical profile side view of refrigerator.

Fig. 3 is the stereogram after expression is assembled in cold air circulation mechanism in the body of thermal insulating box.

Fig. 4 is that each parts of expression are assembled in the exploded perspective view in the body of thermal insulating box.

Fig. 5 is the exploded perspective view of baffle plate unit and evaporation lid.

Fig. 6 is the stereogram of assembling peristome part.

Fig. 7 is the cross-sectional plane of recurrent canal part.

Fig. 8 is the vertical profile side view of recurrent canal part.

Fig. 9 is the vertical profile front elevation of recurrent canal end portion.

Below, with reference to description of drawings one embodiment of the invention.Among Fig. 2, roughly represent the structure of body 1 of the bottom cooled refrigerator of present embodiment.Body 1 is in the lengthwise rectangular box shape body of thermal insulating box 2 of opening in front, and being provided with up and down, three layers of storeroom constitute.As is generally known above-mentioned body of thermal insulating box 2 is in plastics system between case 3 and the steel plate system outer container 4, constitute with foamed thermal insulating 5 such as so-called foam-in-place mode filled with polyurethane foam foam.

Three layers of storeroom in the body 1 from top to bottom, are refrigerating chamber 6, vegetable compartment 7 and refrigerating chamber 8, wherein, and the volume of refrigerating chamber 6 (short transverse size) maximum.Above-mentioned refrigerating chamber 6 and vegetable compartment 7 all form for example about 3 ℃ temperature band, about two Room are divided into by separating part 9.This separating part 9 is made of the spacer body 9a of toe lateral and the plastics system base plate 9b of rear portion side shown in Fig. 3 etc., in above-mentioned spacer body 9a, is setting various electric parts, distribution, anti-condensation pipe etc.On separating part 9, be provided with water supply unit 10 (seeing Fig. 3 and Fig. 4), this water supply unit 10 supplies water to the automatic ice-making plant that is located at refrigerating chamber 8 internal upper parts (figure does not show).

Above-mentioned refrigerating chamber 8 for example is set at approximately-18 ℃ temperature band, and vegetable compartment 7 and refrigerating chamber 8 are about being separated into by adiabatic partition wall 11.This thermal insulation partition wall 11 is in roughly being the plastics system shell body 11a of thin type rectangular box shape as shown in Figure 1, and the heat-insulating material 11b that foamed styrene etc. is set constitutes.At the leading section of adiabatic partition wall 11, septation cover 12 is installed, the inside of this septation cover 12 is setting anti-condensation pipe etc.

Extremely shown in Figure 9 as Fig. 4 and Fig. 6, in the present embodiment, on adiabatic partition wall 11, has the protuberance 11c that rearward gives prominence to from its right part, rear portion integratedly, part at this protuberance 11c, be provided with recurrent canal 13 integratedly, this recurrent canal 13 is used for the cold air from vegetable compartment 7 is returned cooler 19 parts described later.Therefore, see that adiabatic partition wall 11 is formed with the rectangular-shaped otch of growing crosswise except the position, right part of back portion from above, this notch portion as described later, as assembling space 34.About recurrent canal 13 parts, will describe in detail in the back.

In the front of body 1, be provided with the

door

14,15,16 that opens and closes each

storeroom

6,7,8.Wherein, the door of vegetable compartment 7 and refrigerating chamber 8 15 and 16 is drawer type, in each

rear side tank

7a and 8a is arranged.Rear side bottom at body 1 is provided with Machine Room 17.In this Machine Room 17, setting compressor 18, cooling fan, Defrost water evaporating ware (all not shown) of a part that constitutes refrigeration cycle etc.The part of the skewed adiabatic wall of these Machine Room 17 front face side and body 1 bottom etc. is separated formation and installation with body of thermal insulating box 2.

Side surface side in body 1 (body of thermal insulating box 2) (assembling space 34 parts in being formed between the inner face of case 3 and the adiabatic partition wall 11), cross over adiabatic partition wall 11 about, promptly cross over the two height place of vegetable compartment 7 and refrigerating chamber 8, the cold air circulation mechanism 20 that is provided with cooler 19 and the cold air that this cooler 19 is sent out is sent.At this moment, above-mentioned cooler 19 sets along the inner face of the interior case 3 of body of thermal insulating box 2, above-mentioned cold air circulation mechanism 20, from the toe lateral of cooler 19 in the scope on top, form cool-air feed pipeline 29 described later.

Side surface side in above-mentioned refrigerating chamber 6, with the upper end of above-mentioned cold air circulation mechanism 20 (cool-air feed pipeline 29) continuously, formation is the refrigerating chamber pipeline 21 in the cool-air feed refrigerating chamber 6, and, be provided with the pipeline that has a cold air blow-off outlet 22a at key position and form parts 22 (seeing Fig. 3 and Fig. 4).Below, the structure of above-mentioned cold air circulation mechanism 20 parts is described with reference to Fig. 1 and Fig. 3 to Fig. 9.

Shown in Fig. 1 and Fig. 4 etc., this cold air circulation mechanism 20 possesses evaporation and covers 23 and baffle plate unit 24, and in the backing portion of refrigerating chamber 8, refrigerating chamber side protecgulum 25 is installed.Wherein, evaporation cover 23 be with plastics constitute rectangular-shaped approximately, its Lower Half is the tabular of covering cooler 19 fronts, the coupled first half is the lid shape that bloats towards the place ahead, and interior case 3 inner faces between form the space.

As shown in Figure 5, evaporate the left-hand portion of covering 23 first halves, be provided with horn mouth 23a,, be provided with fan installation portion 27 (see figure 1)s that fan assembly 26 is installed in its rear side at this.In addition, in the present embodiment, cover around 23 first halves front face of the flange portion 23b on (top and about) in evaporation, be provided with several engaging claw 23c, above-mentioned baffle plate unit 24 can combine with this engaging claw 23c freely removably.This evaporation covers 23 as described later, on the inner face with case 3 in being installed in baffle plate unit 24 all-in-one-piece states, at this moment, on the case 3, is provided with and said fans installation portion 27 corresponding concave part 3a (seeing Fig. 4 and Fig. 6) in above-mentioned.

Like this, by this evaporation lid 23 and interior case 3 inner faces between constitute the chamber of accommodating cooler 19, when said fans device 26 was driven, air was cooled by cooler 19 from bottom to top, forwards blew out then.At this moment,, setting defrosting heater 28 (seeing Fig. 1, Fig. 2, Fig. 9), below this defrosting heater 28, be provided with drainpipe 35 at the following quadrate part of cooler 19.At this moment, as shown in Figure 9, drainpipe 35 extends along the whole left and right directions of interior case 3.The cold air that has been used for cooling such as food in each

storeroom

6,7,8 is by comprising above-mentioned V chamber turns back to cooler 19 with the recurrent canal (overall diagram is not shown) of recurrent canal 13 bottom.

As shown in Figure 3 and Figure 4, above-mentioned refrigerating chamber side protecgulum 25 be by plastics constitute tabular, as shown in Figure 1, have the cold air blow-off outlet 25a that blows out cold air towards refrigerating chamber 8.This refrigerating chamber protecgulum 25, the place ahead slightly of cover 23 Lower Halves in evaporation is located, and the form of above lower cross frame is installed between the skewed adiabatic wall of rear side of the rear end lower face of above-mentioned adiabatic partition wall 11 and refrigerating chamber 8.Like this, refrigerating chamber side protecgulum 25 constitutes the back side of refrigerating chambers 8, and, and above-mentioned evaporation lid 23 between constitute the bottom part of cool-air feed pipe 29.

And as Fig. 1 and shown in Figure 5, above-mentioned baffle plate unit 24 is made of shutter 30, heat insulator 31, retaining device 32, rear portion heat insulation material 33.Wherein, heat insulator 31 is made of heat-insulating materials such as foamed styrenes, as shown in Figure 5, have all-in-one-piece base portion 31a and baffle plate resettlement section 31b, this base portion 31a from the first half of the topped evaporation in front lid 23 and and this evaporation cover the top of formation cool-air feed pipeline 29 between 23 the first half front, this baffle plate resettlement section 31b extends upward from the left side, top of above-mentioned base portion 31a.In the rear side of heat insulator 31, form the recess that above-below direction extends, this recess is used to form cool-air feed pipeline 29.

In above-mentioned baffle plate resettlement section 31b, the position midway of the recess of side opening has retaining device 32 to embed from rear side and is fixing overleaf.Above-mentioned rear portion heat insulation material 33 pushes above-mentioned retaining device 32 rear side and is pressed into and is fixed in the recess of baffle plate resettlement section 31b.Like this, retaining device 32 just is plugged in the position midway (upper part) of cool-air feed pipeline 29.

Above-mentioned retaining device 32 is baffle plate 32a (Fig. 1) and the motor etc. that drives it are assembled in box body in and constitute, by the switching of baffle plate 32a, and the cold air supply above control is supplied with from cool-air feed pipeline 29.

Above-mentioned shutter 30 is made of plastic, and formation can cover above-mentioned heat insulator 31 fronts and the shape of peripheral part up and down.As shown in Figure 5, form flange portion 30a on this shutter 30, this flange portion 30a overlaps with tightlock status with the flange portion 23b of above-mentioned evaporation lid 23.On this flange portion 30a, form and above-mentioned engaging claw 23c engaging hole engaged 30b.

Like this, assembling the heat insulator 31 of retaining device 32 and rear portion heat insulation material 33, embedding in the shutter 30 and formation baffle plate unit 24 from rear side.The flange portion 30a of baffle plate unit 24 by shutter 30 and evaporation covers 23 loading and unloading of flange portion 23b and are engaged, and are installed in to evaporate and cover on 23.Like this, as shown in Figure 1, shutter 30 constitutes the back side of vegetable compartment 7, and, the top of formation cool-air feed pipeline 29 between above-mentioned evaporation lid 23 and heat insulator 31.The upper end of this cool-air feed pipe 29 is connected with the bottom of refrigerating chamber pipeline 21 (pipeline forms parts 22).

At this moment, as shown in Figure 1, rearward end on above-mentioned adiabatic partition wall 11 forms and embeds recess 11d, and the following 24a of portion of above-mentioned baffle plate unit 24 embeds in this recess 11d.In the present embodiment, the height and position of 24 upper ends, baffle plate unit than the low preliminary dimension of separating part 9 (base plate 9b), like this, in vegetable compartment 7, spurs baffle plate unit 24 towards the front side rotationally, just baffle plate unit 24 can be unloaded.Certainly, can carry out the installation of baffle plate unit 24 with opposite operation.

As described in the explanation of hereinafter assembling procedure, in the present embodiment, when the cooler 19 of above-mentioned structure and cold air circulation mechanism 20 are assembled into refrigerator body 1 (body of thermal insulating box 2) and go up, under adiabatic demarcation strip 11 is installed in state on the body of thermal insulating box 2 in advance, for example cooler 19 is assembled into the assembling space portion 34 that constitutes between said adiabatic demarcation strip 11 and the interior case 3 and (sees Fig. 6 from refrigerating chamber 8 sides, Fig. 7 etc.), then, covering the assembly that baffle plate unit 24 is installed on 23 in evaporation, embed assembling from refrigerating chamber 6 sides by vegetable compartment 7, simultaneously, from refrigerating chamber 8 sides assembling refrigerating chamber side protecgulum 25.

At this moment, above-mentioned adiabatic demarcation strip 11 when the foamed thermal insulating 5 that constitutes body of thermal insulating box 2 forms (foaming operation), is installed (temporary fixed) in advance to interior case 3 inside.In addition, owing to cover the total length (length dimension) of the short transverse of the assembly that baffle plate unit 24 is installed on 23 in evaporation, height dimension than vegetable compartment 7 is grown (height dimension than refrigerating chamber 6 is little) slightly, so, this assembling operation is to carry out at the uninstalled state of the 9b of base plate at least of separating part 9.

Below, explanation is located at V chamber recurrent canal 13 parts on the above-mentioned adiabatic demarcation strip 11 with reference to Fig. 6 to Fig. 9.The rectangular tubular that is fore-and-aft direction as shown in Figure 7 and Figure 8, is seen with recurrent canal 13 in this V chamber from above, be the straight tube-like that the side part prolongs downwards again below adiabatic demarcation strip 11.At this moment, the V chamber constitutes the adiabatic material setting that is made of foamed styrene inside the shell with recurrent canal 13, and this shell is located on the shell body 11a of adiabatic demarcation strip 11 integratedly.In addition, this V chamber is with recurrent canal 13 (protuberance 11b), and the inner face of the promptly interior case 3 of portion closely contacts in face of the facial backing with body of thermal insulating box 2 of its rear wall, is positioned at the right side of cooler 19.

This V chamber upper end inlet portion 13a of recurrent canal 13, (bottom surface of vegetable compartment 7) opening on adiabatic demarcation strip 11, at this moment, as shown in Figure 8, its inlet 13a is protruding upward above adiabatic demarcation strip 11, and inclination slowly descends towards the place ahead.The peristome of this inlet portion 13a is the louver shape.In addition, as shown in Figure 9, use the 13b of export department of the underpart opening of recurrent canal 13 in this V chamber, be positioned near the top of the defrosting heater 28 of top slightly of above-mentioned drainpipe 35, this defrosting heater 28 is located at the below of cooler 19.

In addition, facial on the protuberance 11c of adiabatic partition wall 11 as shown in Figure 6 in the present embodiment, along the margo dexter of assembling space portion (V chamber with the left side of recurrent canal 13), be provided with the sealed wall portion 36 that erects upward.The upper end of sealing wall portion 36 is positioned at than the inlet portion 13a high position of V chamber with recurrent canal 13, is descend towards the place ahead skewed.The right side wall bottom of above-mentioned baffle plate unit 24 is skewed and closely contacts with the upper end of above-mentioned sealed wall 36.

Below, the effect of above-mentioned structure is described.When the refrigerator body 1 of the above-mentioned structure of assembling, in the formation operation of body of thermal insulating box 2, adiabatic partition wall 11 is installed in advance earlier.Specifically, when making body of thermal insulating box 2, case 3 and outer container 4 in the assembling for example inject polyurethane stock solution etc. in the spatial portion that is formed at therebetween, make its sclerosis with finishing die while pushing foaming, the state of the adiabatic material (polyurethane foam) 5 that foams that become filling.When this foams, the inside of case 3 in advance adiabatic partition wall 11 being installed in.

So, because the blow pressure of foamed thermal insulating 5, interior case 3 is subjected to the power of side direction exapnsion in the refrigerator, the both side edges portion of adiabatic partition wall 11 and the madial wall brute force of interior case 3 are connected airtight, can obtain high leakproofness between them, not need in following process, to seal with the encapsulant of high price.In addition, at this moment, between the back of adiabatic partition wall 11 one and interior case 3 (left side of protuberance 11c) as shown in Figure 6 can guarantee to assemble the assembling space portion 34 of cooler 19 and cold air circulation mechanism 20.Meanwhile, be located at the V chamber recurrent canal 13 on the adiabatic partition wall 11 integratedly, be provided in the right side of assembling space portion 34.

Cooler 19 and the parts that constitute cold air circulation mechanism 20 are assembled into the operation in the assembling space portion 34 of interior case 3 inside of body of thermal insulating box 2, following carrying out.That is, earlier cooler 19 is assembled along interior case 3 inner faces, the assembling of this cooler 19 according to the openings of sizes of refrigerating chamber 8 and vegetable compartment 7, is carried out from refrigerating chamber 8 sides of adiabatic partition wall 11 downsides or from vegetable compartment 7 sides of upside.With the assembling while of this cooler 19, the assembling of defrosting heater 28 is also carried out in refrigerating chamber 8 sides.

Then, evaporate and cover 23 and the assembling of baffle plate 24, at this moment, in advance fan assembly 26 is installed to evaporation and covers on 23 the fan installation portion 27, simultaneously the heat insulator 31 of assembling retaining device 32 and rear portion heat insulation material 33 is embedded in the shutter 30, constitute baffle plate unit 24.Then, as shown in Figure 6, cover the assembly that baffle plate unit 24 is installed on 23, from the refrigerating chamber 6 and the embedding of vegetable compartment 7 sides of adiabatic partition wall 11 tops and assemble in evaporation.

At this moment,, in interior case 3, do not install as yet under the state of separating part 9, can easily carry out its installation exercise though the short transverse size of cover assembly that baffle plate unit 24 is installed on 23 in evaporation greatly.In addition, meanwhile, from refrigerating chamber side 8 assembling refrigerating chamber side protecgulums 25.Then, assembled conduit forms parts 22 and separating part 9 etc. in interior case 3.Like this, as shown in Figure 1 to Figure 3, cooler 19, cold air circulation mechanism 20 (being made of the fan assembly 26 of the cold air of sending this cooler 19, cool-air feed pipeline 29, retaining device 32 etc.) and V chamber can easily be assembled with recurrent canal 13 by the height place of crossing over adiabatic partition wall 11 up and down of side surface side in body of thermal insulating box 2.

When refrigerator turned round, the cold air of supplying with vegetable compartment 7, reserve (vegetables) being cooled off circulated with the bottom that recurrent canal 13 returns cooler 19 by the V chamber.At this moment, when having piled reserve among the tank 7a in the vegetable compartment 7, the reserve of smallclothes may overflow from this tank 7a and fall depth position (on the protuberance 11c of adiabatic partition wall 11) in the vegetable compartment 7.But in the present embodiment, the inlet portion 13a with recurrent canal 13 is towards the state of the place ahead decline inclination owing to the V chamber, so, can prevent that above-mentioned dropping from stopping up inlet portion 13a.

In addition, in refrigerator, phase stops kind of refrigeration cycle and connects defrosting heater 28 in due course, to heat the defrosting running of cooler 19, at this moment, because the V chamber is located near the top of defrosting heater 28 with the 13b of lower end export department of recurrent canal 13, so, even also can defrost with the thermosolization of Defrost heater 28 with frosting in the recurrent canal 13 in the V chamber.

As mentioned above, according to present embodiment, at the height and position of crossing over adiabatic partition wall 11 up and down cooler 19 and cold air circulation mechanism 20 are set, because can be in advance adiabatic partition wall 11 being installed under the state in the case 3, the component parts of assembling cooler 19 and cold air circulation mechanism 20, so, will not be divided into two parts by thermal insulation partition wall 11, after can assembling adiabatic partition wall 11 in advance, carry out the foaming operation of body of thermal insulating box 2.Therefore, the chamber up and down (vegetable compartment 7 and refrigerating chamber 8) of adiabatic partition wall 11 though between the temperature band be very different, other sealing material also needn't be set afterwards carry out the strictness sealing, can guarantee the high leakproofness between adiabatic partition wall 11 and body of thermal insulating box 2 internal faces.

In addition, 23 (on this evaporation lid 23 fan assembly 26 being installed) and baffle plate unit 24 (this baffle plate unit 24 be retaining device 32 is assembled into heat insulator 31 interior and form blocking) formation cover by evaporation in cold air circulation mechanism 20, can they be embedded the ground assembling from the top of adiabatic partition wall 11, so, increased substantially assembleability.Especially in the present embodiment, cover the assembly that baffle plate unit 24 is installed on 23 in evaporation and can once assemble and finish, so assembleability is fabulous.

In addition, needn't unload adiabatic partition wall 11, just can easily unload lower baffle plate unit 24 and evaporate and cover 23.Operations such as the maintenance of cooler 19 and cold air circulation mechanism 20, part exchanging are also easy, and maintainability improves.At this moment, particularly in the present embodiment, needn't unload separating part 9 just can be from vegetable compartment 7 loading and unloading baffle plate unit 24, so improved maintainability more.

Have again, in the present embodiment, because the V chamber is located on the adiabatic partition wall 11 integratedly with recurrent canal 13, so, and imbed recurrent canal in the insulated cabinet or the prior art that other recurrent canal forms parts is installed compares, can make the simple structure of V chamber usefulness recurrent canal.At this moment, because the V chamber is positioned at the inwall face of case 3 with recurrent canal 13, so, needn't in interior case 3, carry out complicated processing such as perforate, interior case 3 structures own also can be simple.In addition, the V chamber is the straight tube-like of extending along the vertical direction with recurrent canal 13, so its formation also is more prone to.

And, particularly in the present embodiment, the V chamber is outstanding and descend to towards the place ahead towards the top with the inlet portion 13a of recurrent canal 13, and the V chamber is configured near the top of Defrost heater 28 with the 13b of export department of recurrent canal 13, so, can prevent that reserve from stopping up the inlet portion 13a of V chamber with recurrent canal 13.In addition, special heater needn't be set and remove the V chamber with the frosting in the recurrent canal 13.

In addition, in the foregoing description, be once to be assembled in the assembling space 34, still covering the assembly that baffle plate unit 24 is installed on 23 in evaporation, also can assemble evaporation lid 23 and baffle plate unit 24 that fan assembly 26 is installed respectively, do so also and can fully improve assembleability.The present invention is not limited to the foregoing description in addition, for example, also the separating part of refrigerated chamber and vegetable compartment can be positioned at the tight top of baffle plate unit.In addition, the structure of the structure of evaporation lid and baffle plate unit and recurrent canal part etc. can be done various distortion, can suitably change without departing from the spirit and scope of the present invention.

As mentioned above, refrigerator of the present invention, at the height and position of crossing over adiabatic partition wall up and down, be provided with cooler and cold air circulation mechanism, can be under adiabatic partition wall be installed in state in the body of thermal insulating box, the parts of cooler and formation cold air circulation mechanism are assembled in the dress space that forms between this body of thermal insulating box inner face and this thermal insulation partition wall rearward end, simultaneously, recurrent canal is located on the adiabatic partition wall integratedly, so, can guarantee the high leakproofness between adiabatic partition wall and body of thermal insulating box internal face, improve assembleability and maintainability simultaneously, and can make the simple structureization of recurrent canal, have good practical function.

Claims

1. refrigerator, the body of thermal insulating box inside of opening is separated into several different storerooms of temperature up and down with adiabatic partition wall in front; Side surface side in body of thermal insulating box at the height and position place of crossing over adiabatic partition wall up and down, is provided with cooler and the mechanism of will circulating from the cold air that the cold air that this cooler comes out is sent; It is characterized in that, can be under adiabatic partition wall be installed in state in the body of thermal insulating box, above-mentioned cooler and the parts that constitute cold air circulation mechanism are assembled in the assembling space that is formed between this body of thermal insulating box inner face and the adiabatic partition wall;

On above-mentioned adiabatic partition wall, the sidepiece in assembling space portion is provided with the recurrent canal that the air in the storeroom on this thermal insulation partition wall top is returned above-mentioned cooler integratedly.

2. a refrigerator is being provided with adiabatic partition wall in body of thermal insulating box, thereby forms refrigerating chamber in the bottom of this thermal insulation partition wall, and on the top of this thermal insulation partition wall, formation temperature is higher than the storeroom of refrigerating chamber; It is characterized in that,

On above-mentioned adiabatic partition wall, the recurrent canal that the air of above-mentioned storeroom is returned the below by this thermal insulation partition wall is set integratedly.

3. refrigerator as claimed in claim 1 or 2 is characterized in that, above-mentioned recurrent canal is positioned at the front portion of the backing face of body of thermal insulating box.

4. as each described refrigerator in the claim 1 to 3, it is characterized in that, the upper end inlet portion of recurrent canal, protruding upward above adiabatic partition wall, and towards front side decline inclination.

5. as each described refrigerator in the claim 1 to 4, it is characterized in that the lower end export department of recurrent canal is configured near the top of defrosting heater of the below that is located at cooler.

6. as each described refrigerator in the claim 1 to 5, it is characterized in that recurrent canal is the straight tube-like of extending along the vertical direction.

7. as each described refrigerator in the claim 1 to 6, it is characterized in that, the storeroom in the body of thermal insulating box, refrigerating chamber and the vegetable compartment that is located at this thermal insulation partition wall upper side constitutes by the refrigerating chamber of adiabatic partition wall lower side, up and down.