CN1646868A - Refrigerator - Google Patents

Abstract

In a refrigerator having resin foam and vacuum insulator (hereinafter referred as insulator) between an inner casing and an outer casing, by forming any one of the following constructions, a refrigerator with good appearance and effective insulation can be provided. The constructions comprise: a construction in which the central line average roughness of the outer surface on the face of the outer casing having the insulator disposed thereon is above 0.l mum, and the glossiness of the outer surface is below 80; a construction in which the insulator is adhered to an inner panel that constitutes the front face; a construction in which a intermediate member is disposed between the insulator and the outer casing for preventing deformation of the outer surface of the outer casing; a construction in which a heat dissipating pipe is installed between the insulator and the outer casing, and the clearance between the insulator and the heat dissipating pipe communicates the external; a construction in which small apertures are formed in the face of the outer casing having the insulator disposed thereon; a construction in which the insulator is disposed to secure to two side faces of the upper portion, the top face, the back face, and the front face of the outer casing, and is disposed to secure to the bottom face, two side faces of the lower portion, and the face of the inner casing constituting the mechanical room arranged at the lower portion; and a construction in which the insulator having a heat dissipating pipe installed in the face connected to the outer casing is disposed inside the outer casing.

Description

Refrigerator

Technical field

The present invention relates to utilize the refrigerator of vacuum thermal insulator body.

Background technology

Be target with the energy-conservation of refrigerator and saving space in recent years, in order to improve the heat-proof quality of refrigerator, research and utilization has the vacuum thermal insulator body of high heat-proof quality.The vacuum thermal insulator body with as the hard polyurethane foams of foamed resin relatively, have the heat-proof quality about several times to 10 times.In the today of improving energy-conservation requirement day by day, in proper range.Maximally utilise this vacuum thermal insulator body, improving heat-proof quality is very urgent task.In addition, in the heat insulating box of refrigerator, during with vacuum thermal insulator body and the use of hard polyurethane foams lamination, because hard polyurethane foams is different with the shrinkage factor of vacuum thermal insulator body, therefore, the outward appearance of heat insulating box produces distortion.Opening clear 61-141690 communique has illustrated the method that addresses this problem in fact.Followingly above-mentioned existing refrigerator is described with reference to accompanying drawing.

Figure 40 is the sectional view that is configured in the door at existing refrigerator front openings portion place, and Figure 41 is the A portion enlarged drawing of Figure 40.In the drawings, refrigerator has metal outside plate 1, plastic doorframe 2, plastic interior case 3, foaming heat insulator 4 and vacuum thermal insulator body 5.The divergence type paper 6 that is inserted between vacuum thermal insulator body 5 and the outside plate 1 is done greatlyyer than vacuum thermal insulator body 5.Like this, vacuum thermal insulator body 5 is positioned at the inner face of outside plate 1 by this divergence type paper 6.Adopt this structure, after 4 foaming of foaming heat insulator, foaming heat insulator 4 shrinks, and by the effect of divergence type paper 6, produces X at interval between outside plate 1 and divergence type paper 6, can prevent the distortion of outside plate 1.

Yet, in this refrigerator,, between outside plate and foaming heat insulator, produce the gap in order to prevent the apparent distortion of outside plate.Therefore, when the user touches outside plate with hand, have and heave and the flat inferior sense of touch that causes, bad.

Te Kaiping 6-159922 communique has also illustrated a kind of refrigerator with vacuum thermal insulator body.Figure 42 represents the side cross-sectional, view of this existing refrigerator.Refrigerator main body 7 is made of outer container 1A and interior case 3.The bag official form for filing a lawsuit material 8 that can be shaped covers the whole space that is made of outer container 1A and interior case 3, the filler 4A that is made of inorganic porous material at the inner filling of paper spare 8.Vacuum thermal insulator body 5 is along the shape configuration by interior outer container 1A and 3 spaces that surround.In addition, on two surfaces of employed vacuum thermal insulator body 5 metal forming is arranged, be shaped as the plane.

Adopt this structure, in easily vacuum thermal insulator body 5 being placed between the outer container 1A and 3, in not needing to clog outer container 1A and 3 and vacuum thermal insulator body 5 between the interval.In addition,, and only use vacuum thermal insulator body 5 to constitute heat insulating boxes, can guarantee high heat-proof quality owing to the hard polyurethane foams that does not use as foamed resin.

Yet, in this refrigerator the low vacuum thermal insulator body 5 of intensity owing to only use than hard polyurethane foams, the heat-proof quality height, but intensity very a little less than.That is easy deformation in appearance.In addition, because the shape of interior case and outer container is not the plane, therefore on not being the part on plane, the male and fomale(M﹠F) of radiating tube etc. etc. is not difficult to use tabular vacuum thermal insulator body.In one plane use the vacuum thermal insulator body of employing AM aluminum metallization film to produce effect in order to improve heat-proof quality, yet, from reliability, be difficult to use the vacuum thermal insulator body that adopts the AM aluminum metallization film.

Summary of the invention

Between outer container and interior case, have in the refrigerator of foamed resin and vacuum thermal insulator body, utilize following any structure.

(1) make the vacuum thermal insulator body is configured in outer container the center line average roughness (Ra) of outer container outer surface of face more than 0.1 μ m, perhaps the glossiness on its outer container surface is below 80.

(2) vacuum thermal insulator that will be configured on the door that constitutes the front is shown consideration for the inner panel that is attached to door.

(3) between vacuum thermal insulator body and outer container, configuration prevent outer container outer surface distortion at intermediate member.

(4) between vacuum thermal insulator body and outer container, dispose radiating tube, make the space part and the external communications that form by vacuum thermal insulator body and radiating tube simultaneously.

(5) on the outer container of the face that the vacuum thermal insulator body is configured in outer container, make aperture.

(6) in the bottom Machine Room is arranged, is configured to: make vacuum thermal insulator body and refrigerator two sides, top, end face, the back side, the front is relative and join with outer container; The face that make vacuum thermal insulator body and bottom surface, two sides, bottom, constitutes the Machine Room is relative and be connected with interior case.

(7) the vacuum thermal insulator body is configured in the outer container inboard, this material is with in the face that radiating tube is packed into outer container is connected.

Description of drawings

Fig. 1 is the front view of the refrigerator of embodiments of the present invention 1;

Fig. 2 is the side cross-sectional, view of refrigerator shown in Figure 1.

Fig. 3 is the elevational sectional view of refrigerator shown in Figure 1.

Fig. 4 is the preceding exploded view of refrigerating-chamber door foaming of the refrigerator of embodiments of the present invention 1.

Fig. 5 is the sectional view after Fig. 4 foaming.

Fig. 6 is the sectional view of refrigerating chamber door of the refrigerator of embodiments of the present invention 1.

Fig. 7 is the exploded view before the foaming of other refrigerating-chamber door of refrigerator of embodiments of the present invention 1.

Fig. 8 is the sectional view after Fig. 7 foaming.

Fig. 9 is the sectional view of sidewall major part of the refrigerator of embodiments of the present invention 3.

Figure 10 is the stereogram of major part of the refrigerator of embodiments of the present invention 3.

Figure 11 is the sectional view of sidewall major part of the refrigerator of embodiments of the present invention 4.

Figure 12 is the sectional view of sidewall major part of the refrigerator of embodiments of the present invention 5.

Figure 13 is the sectional view of the vacuum thermal insulator body that uses in the refrigerator of embodiments of the present invention 6.

Figure 14 is the sectional view of other vacuum thermal insulator body of using in the refrigerator of embodiments of the present invention 6.

Figure 15 is the sectional view of another vacuum thermal insulator body of using in the refrigerator of embodiments of the present invention 6.

Figure 16 is the plane of the preceding state of the outer container warpage of the refrigerator of expression embodiments of the present invention 7.

The stereogram of the state of Figure 17 after for the outer container warpage of refrigerator of expression embodiment of the present invention 7.

Figure 18 is the sectional view of the major part of the vacuum thermal insulator body that uses in the refrigerator of embodiments of the present invention 7.

Figure 19 is the sectional view of the amplification of the part of the vacuum thermal insulator body that uses in the refrigerator of suitable embodiment 7 of the present invention.

Figure 20 is the exploded perspective view of the major part of the polyurethane of the refrigerator of embodiments of the present invention 7 other end that injects the aluminium strip after the foaming.

Figure 21 is the sectional view of amplification of major part of the refrigerator of embodiment of the present invention 8.

Figure 22 A is the side cross-sectional, view of the refrigerator of embodiment of the present invention 9.

Figure 22 B is the enlarged drawing of the major part of Figure 22 A.

Figure 23 A is the elevational sectional view of the refrigerator of Figure 22 A.

Figure 23 B, 23C are the enlarged drawing of the major part of Figure 23 A.

Figure 24 is the longitudinal section of the amplification of the major part of the vacuum thermal insulator body that uses in the refrigerator of embodiments of the present invention 10.

Figure 25 is the sectional view that the part of the refrigerator of embodiments of the present invention 10 is amplified.

Figure 26 is the amplification sectional view of another part of the refrigerator of embodiments of the present invention 10.

Figure 27 is the sectional view of amplification of major part of the refrigerator of embodiments of the present invention 11.

Figure 28 is the sectional view of amplification of major part of the refrigerator of embodiments of the present invention 12.

Figure 29 is near the part amplification sectional view of radiating tube of the refrigerator of embodiments of the present invention 12.

Figure 30 is the preceding stereogram of the dull and stereotyped warpage of outer container of the refrigerator of embodiment of the present invention 13.

Figure 31 is the sectional view of amplification of major part of the refrigerator of embodiments of the present invention 14.

Figure 32 is the sectional view of amplification of major part of the refrigerator of embodiments of the present invention 15.

Figure 33 is the sectional view of the amplification of the major part in the place, location of vacuum thermal insulator body in the outer container of refrigerator of embodiments of the present invention 16.

Figure 34 is the structure chart of the vacuum thermal insulator body that uses in the refrigerator of embodiments of the present invention 17.

Figure 35 is the side cross-sectional, view of the refrigerator of embodiments of the present invention 17.

Figure 36 is the elevational sectional view of the refrigerator of embodiment of the present invention 17.

Figure 37 is the freeze cycle loop diagram of the refrigerator of embodiments of the present invention 18.

Figure 38 is the structure chart of the vacuum thermal insulator body of embodiment of the present invention 18.

Figure 39 is the skeleton diagram of the vacuum thermal insulator body of Figure 38.

Figure 40 is the sectional view that is configured in the door in the existing refrigerator front openings portion.

Figure 41 is the enlarged drawing of the A part of Figure 40.

Figure 42 is the side cross-sectional, view of existing another kind of refrigerator.

The specific embodiment

Below, with reference to the description of drawings embodiments of the present invention.Same structure with identical symbolic representation, is omitted its detailed description.

(embodiment 1)

With reference to Fig. 1～Fig. 6, embodiments of the present invention 1 are described.Refrigerator 10 is in interior case of being made by acrylonitrile, butadiene and styrene copolymer synthetic resin such as (ABS) 11 and the space that formed by metal outer containers 12 such as iron plates, fills that hard polyurethane foams (hereinafter referred to as polyurethane foam) 13 as foamed resin constitutes.Refrigerating chamber 15, vegetable compartment 16 are formed at the top in thermal insulation areas next door 14; Form switching chamber 17, ice-making compartment 18 and refrigerating chamber 19 in the bottom.Inside in the Machine Room 20 that is configured in refrigerator 10 lower rear, configuration compressor 21.In addition, refrigerator 10 has refrigeration with cooler 22, refrigerates with pressure fan 23, and is freezing with cooler 24 and freezing with pressure fan 25.Condenser 26 is installed on the bottom surface sections of refrigerator 10.

Being respectively equipped with an end in the front openings portion of refrigerator 10 is articulated refrigerating chamber door (hereinafter referred to as the door) 27 that fulcrum rotates, the vegetable compartment of drawer type door (hereinafter referred to as a door) 28, switch chamber door (hereinafter referred to as a door) 29, ice-making compartment door (hereinafter referred to as a door) 30, refrigerating chamber door (hereinafter referred to as a door) 31.Vacuum thermal insulator body 32,33,34,35,36,37,38,39,40,41 constitutes refrigerator main body 10 with polyurethane foam 13.

Vacuum thermal insulator body 32,33,34,36 is connected with inboard that each end face of outer container 11, the back side, side, Machine Room constitute face respectively and is adjacent to.Vacuum thermal insulator body 35 is connected with the bottom surface of interior case 12 and is adjacent to.Vacuum thermal insulator body 37 is configured in the thermal insulation areas next door 14.In addition, in the inside of door 27, configuration vacuum thermal insulator body 38 is connected with interior case.Vacuum thermal insulator body 39,40,41 is configured in the inside of door 28,29,31 respectively, is positioned at the outside iron plate of each and the pars intermedia of case.Do not illustrate among the figure, dispose the vacuum thermal insulator body equally in the centre of the outside of door 30 iron plate and interior case.

In addition, surround the refrigerating chamber 19 in freezing zone, the polyurethane foam 13 and the vacuum thermal insulator body 33,34,35,36 that switch chamber 17 form heat insulating box.The heat insulation wall thickness of this heat insulating box comprises the part of the wall thickness of peristome except door, preferably in 25～50mm scope.On the other hand, the refrigerating chamber 15 of encirclement cool storage area, the polyurethane foam 13 and the vacuum thermal insulator body 32,33,34 of vegetable compartment 16 also constitute heat insulating box.The heat insulation wall thickness of this heat insulating box except door, comprises the part of the wall thickness of peristome, in 25～40mm scope.Because configuration thickness is the vacuum thermal insulator body of 10～15mm in this heat insulation wall thickness, can guarantee the minimum 10mm of being of filling thickness of polyurethane foam 13.Therefore, the flowability in the time of can not hindering polyurethane foam 13 foaming can not cause by the bad thermal insulation that causes of the coarse or filling of foam yet and reduce.Like this, at the thickness of guaranteeing the vacuum thermal insulator body, give full play to thermal insulation in, can keep the thermal insulation of polyurethane foam 13, can improve heat-proof quality effectively as the multilayer insulation wall.Particularly in the big cryogenic temperature zone of storehouse temperature gradient inside or outside, better effects if.Therefore, do not make the refrigerating chamber 19 that surrounds freezing zone, the heat insulation wall thickness that switches chamber 17 surpass 50mm.Like this, use the vacuum thermal insulator body, can flexible Application, increase the less refrigerating chamber of V/V 19 and switch the internal volume of chamber 17 and, therefore, can further improve the value of vacuum thermal insulator body the not influence of outward appearance layout.The heat insulation wall thickness of refrigerating chamber 15, vegetable compartment 16 is no more than 40mm.Like this, in the smaller cool storage area of storehouse temperature gradient inside or outside, can reach owing to use the balance of the effect of the energy-conservation of vacuum thermal insulator body and the inside and outside volumetric efficiency of raising heat insulating box.

Refrigerator 10 has the constituent part that do not illustrate among the figure and as the part of the special structures such as the portion that is provided with of concaveconvex shape or pipeline, drainpipe.At the many vacuum thermal insulator bodies of configuration, the lining rate is increased under the situation of the limit, the vacuum thermal insulator body with the matched special shape of this part must be arranged; Otherwise the vacuum thermal insulator body be adjacent to the non-constant of operation.Because like this, even general surpass at the surface area 80% of outer container 11 and configuration vacuum thermal insulator body, it is bad also can to reach above-mentioned service efficiency, the place that value is saturated.That is: the raising effect of the input of heat-proof quality relative vacuum heat insulator significantly reduces.

Therefore, as present embodiment,, do not make based on the effect of a large amount of use vacuum thermal insulator bodies saturated by making surface area coverage to the outer container 11 of vacuum thermal insulator body below 80%.Promptly under the high state of value, can effectively suppress the load of absorbing heat, improve energy-saving effect.

In addition, the thermal wall of the compartment between each surperficial periphery edge part and the cooling chamber is thick and heavy folded.On the peristome periphery edge, the filling compactness of polyurethane foam 13 reduces, and thermal insulation reduces.When additional these problems, when avoiding the invalid covering of vacuum thermal insulator body,, also can obtain the effect of heat insulation same with 80% even coverage rate is 70%.

Be under 80% the situation in coverage rate, the vacuum insulation of each surperficial size dimension of two sides, end face, the back side, bottom surface and fronts by disposing general covering heat insulating box, it is good to be adjacent to operation.

Because like this, can avoid the vacuum thermal insulator body of the outer form of use standard and be configured operation, so cost-performance is good in the low part of operating efficiency.That is: the initial cost that can not destroy the refrigerator 10 that adopts this heat insulating box increases and the balance of energy-conservation operating cost reduction.Therefore, can improve the value of life-span cycle cost.

In addition,, make coverage rate more than 50%, can suppress the heat absorption load of heat insulating box effectively, improve energy-saving effect at the surface area of outer container 12 if pass through the big place configuration of thermal gradient inside and outside the heat insulating box.

From the viewpoint of efficiency of investment, the contribution rate for the energy-saving effect of cost of investment in 50～70% scopes is big.

Because this reason, the preferred structure on each face of two sides by the vacuum thermal insulator body being configured in refrigerator 10, end face, the back side, bottom surface, front, with respect to the outer container surface area, the coverage rate of vacuum thermal insulator body is more than 50%～below 80%, preferably more than 50%～below 70%.

In addition, the storehouse internal and external temperature gradient of door 27,28,29,30,31 parts, more less than other parts of the heat insulating box of the relevant heat extraction of Machine Room 20 grades.Therefore, must need by the intensity of accommodating thing of the inside-of-refrigerator of each door bearing with open and close the intensity of peeling off of the machinery of the vacuum thermal insulator body that causes with respect to door.From here as can be known, control of the configuration of vacuum thermal insulator body at each, can on other main parts of heat insulating box, effectively be used the effect of vacuum thermal insulator body.The coverage rate of vacuum thermal insulator body at this moment is being 675mm for 1800mm, width highly, and the degree of depth is to be about 53% in the 650mm refrigerator, becomes the above-mentioned energy-saving refrigerator that area is 50～80% reasonable use vacuum thermal insulator body that mounts.

In addition, the mean roughness (Ra) of center line of outer surface of outer container 11 that vacuum thermal insulator body 32,33,34 is configured in the surface on the outer container 11 more than 0.1 μ m, coarse than below the existing 0.1 μ m.

Utilize Fig. 4, Fig. 5 that the manufacture method of refrigerating-chamber door 27 is described now.Door inner panel 42 has jut 43, sticks vacuum thermal insulator body 38, contacts with the surface of foremost portion 44.After polyurethane foam 13 is injected in the inboard of external door panel 27A, cover door inner panel 42, foaming forms door 27.

In addition, Fig. 6 is the sectional view of the refrigerating chamber door 31 of drawer type.Door inner panel 45 has fixed part 47, and its fixed bearing holds the track 46 of the housing (not illustrating among the figure) of frozen food.Polyurethane foam 13 is fixed together door inner panel 45 and track 46 by fixed part 47 with reinforcement plate 48.Dividing plate 49 is fixed on the part of reinforcement plate 48 by adhesives etc., so that vacuum thermal insulator body 41 is configured in the space between an inner panel 45 and the external door panel 50.Dividing plate 49 is by for example foamed styrene or polyethylene are made than the soft material of vacuum thermal insulator body 41.In addition, dividing plate 49 makes and is roughly rectangular shape, and the flow direction when making polyurethane foam 13 foaming is consistent with the length direction of dividing plate 49.

In above structure, cooling device is by compressor 21, and refrigeration refrigerates with pressure fan 23 with cooler 22, and is freezing with cooler 24, freezing with pressure fan 25, and condenser 26 constitutes.This cooling device probably can be with refrigerating chamber 15, and vegetable compartment 16 is cooled to 0～10 ℃, switching chamber 17, ice-making compartment 18, refrigerating chamber 19 is cooled to-15～-25 ℃ temperature.

Make coverage rate reach more than 50% of outer container surface area in the big place of thermal gradient if the vacuum thermal insulator body is configured in passing through inside and outside the casing, then can suppress the heat absorption load of refrigerator effectively.In addition, by coverage rate is arranged on below 80%, can avoids using the vacuum thermal insulator body that makes the standard profile formula and be configured operation in the part of operating efficiency difference.That is: the rapid increase of the ratio that reduces with respect to caloric receptivity of the cost that can avoid the vacuum thermal insulator body under can be in the value of the vacuum thermal insulator body high state, suppresses the heat absorption load effectively, improves energy-conservation effect.

Be adjacent to because vacuum thermal insulator body 32,33,34 is connected with outer container 11, the reasons such as deviation of flatnesses such as the concave-convex surface of vacuum thermal insulator body 32,33,34 and amount of deflection can make on the outer surface of outer container 11 generation be out of shape.But because the center line average roughness (Ra) of the outer surface of outer container 11 is more than the 0.1 μ m, thicker than existing, therefore reduce with the light reflectivity of a kind of material of paint on the outer container outer surface.Like this, because the deformable material of the outer container outer surface that attaching vacuum thermal insulator body causes is visually seen minimizing.Therefore, need not use complicated structure or special part, material, can be corresponding with the outward appearance distortion of the refrigerator 10 that uses the vacuum thermal insulator body.In addition, the upper limit of wishing the center line average roughness (Ra) of the outer surface of outer container 11 is not being damaged in the 1 μ m of outward appearance grade.

In addition, attach vacuum thermal insulator body 38, join with the surface of the foremost portion 44 of door inner panel 42.After injecting polyurethane foam 13, cover door inner panel 42, foaming forms door 27.Because like this, vacuum thermal insulator body 38 directly is not connected with the outer surface of door 27, therefore, the outer surface of refrigerating-chamber door 27 can be out of shape because of the contraction after polyurethane foam 13 foaming.

Owing to attach vacuum thermal insulator body 38,, therefore, can dispose vacuum thermal insulator body 38, with the raising heat-proof quality so that is connected with the surface of the foremost portion 44 of door inner panel 42 to greatest extent bigly.In addition, poly-aminoacyl foam 13 is filled on the jut 43 that the inside-of-refrigerator at door-plate 42 forms from the spatial portion of vacuum thermal insulator body 38 and door inner panel 42, can improves the intensity of jut 43.

Being configured in the vacuum thermal insulator body 41 of door on 31 partly is configured in the spatial portion between an inner panel 45 and the external door panel 50 by dividing plate 49.Because like this, the contraction after polyurethane foam 13 foaming can not make the outer surface distortion of external door panel 50.Again owing near the fixed part 47 of the track 46 that forms on the door inner panel 45 and reinforcement plate 48, can form polyurethane foam 13 reliably, so can improve the intensity of track fixed part 47.

Because dividing plate 49 has the material softer than vacuum thermal insulator body 41, therefore can not damage the outer cladding material of vacuum thermal insulator body 41 again, can improve the reliability of vacuum thermal insulator body 41.

Dividing plate 49 makes rectangular shape roughly in addition, and the flow direction when making polyurethane foam 13 foaming is consistent with the length direction of dividing plate 49.Because like this, the obstruction that flows when dividing plate 49 can weaken polyurethane foam 13 foaming, the filling that improves polyurethane improves the intensity of track fixed part 47 reliably.

The refrigerating chamber door 31 of pulling out door as the refrigerator of present embodiment is described now.The vegetable compartment of formation being pulled out door adopts same structure also effective with door 28 and switching chamber with door 29.

In addition, in the above description, at refrigerating chamber single vacuum thermal insulator body 38 of use on the door 27.But as Fig. 7, shown in Figure 8, on a door, polylith vacuum thermal insulator body 38A, 38B and door inner panel 42 are joined, near jut 43, make also passable at interval.In this case, polyurethane foam 13 can be filled on the jut 43 more reliably, improves the intensity of refrigerating chamber with the jut 43 of door 27B.

(embodiment 2)

The basic structure of the refrigerator of embodiments of the present invention 2 is identical with embodiment 1.In embodiment 1, the center line average roughness of the outer surface of regulation outer container 11.In the present embodiment, the glossiness of outer surface of outer container 12 that vacuum thermal insulator body 32,33,34 is configured in the face of outer container 12 drops to below 80 from existing about 90.

Here, so-called glossiness is according to JIS standard code (JIS, Z8741), be on 1.567 the glass surface in refractive index, the reflectivity when incidence angle is 60 ° 10% as glossiness 100, perhaps get reflectivity when incidence angle is 20 ° 5% as glossiness 100.

Same with embodiment 1,32,33,34 connections of vacuum thermal insulator body are attached on the outer container 12.Therefore, the reasons such as deviations from planarity such as concavo-convex and amount of deflection on the surface of vacuum thermal insulator body 32,33,34 can make the outer surface of outer container 12 produce distortion.Because the glossiness of the outer surface of outer container 12 is below 80, therefore the reflection of light rate of the outer container outer surface of same surface roughness reduces.Therefore, can visually reduce the distortion of the outer container outer surface that causes by attaching vacuum thermal insulator body.Therefore, need not use complicated structure or special part and material, can be corresponding with the outward appearance distortion of the refrigerator 10 that adopts the vacuum thermal insulator body.Preferably, following being limited to of the glossiness of the outer surface of outer container 12 do not damaged about 50 of exterior quality.

(embodiment 3)

Fig. 9 is the sectional view of major part of sidewall of the refrigerator of embodiments of the present invention 3.Figure 10 is the stereogram of this major part.Except that the basic structure these identical with embodiment 1.

In the drawings, as preventing that soft parts 53, vacuum thermal insulator body 54 and the hard polyurethane foams 55 of outer container outer surface from the insertion parts of outer container 51 sides distortion is configured between outer container 51 and the interior case 52.Preferably, soft parts 53 are made of than vacuum thermal insulator body 54 soft materials bigger than vacuum thermal insulator body 54.For example, be preferably the foamed resin that constitutes by independent foaming body.

In addition, the thickness t 1 of soft parts 53, preferably more than the flatness of vacuum thermal insulator body 54, and below the thickness of vacuum thermal insulator body.Specifically, 3mm above～below the 15mm.

In said structure, be located at the distortion that soft parts 53 between vacuum thermal insulator body 54 and the outer container 51 can prevent the outer container outer surface.Like this, deviations from planarity factors such as the concave-convex surface of vacuum thermal insulator body 54 and amount of deflection can be absorbed, the distortion of outer container outer surface can be prevented.

In addition,, then can absorb the installation deviation when being attached to vacuum thermal insulator body 54 on the outer container 51, improve operating efficiency if soft parts 53 are bigger than vacuum thermal insulator body 54.

If soft parts 53 are the parts softer than vacuum thermal insulator body 54, can not damage the outer covering piece of vacuum thermal insulator body 54 when then making, improve the reliability of vacuum thermal insulator body 54.

In addition, if as soft parts 53 parts for being made by foamed resin of middle insertion parts, then the blow pressure during hard polyurethane foams (hereinafter referred to as polyurethane foam) 13 foaming is absorbed by the compression of foamed resin.Polyurethane foam after the foaming is shunk by the expansion absorption of foamed resin, can prevent the distortion of outer container outer surface reliably.

The parts that independent foaming body is made if soft parts 53 are served as reasons can prevent that then gases such as foamed gas or air from invading soft parts 53 inside, can prevent the distortion of the outer container outer surface that caused by variations in temperature.

In addition, the thickness t 1 of soft parts 53, preferably more than the flatness of vacuum thermal insulator body 54, and below the thickness of vacuum thermal insulator body.Specifically 3mm above～below the 15mm.Like this, the deviations from planarity of vacuum thermal insulator body is absorbed by soft parts reliably, and simultaneously, the thickness of soft parts 53 need not make to surpass needs above thickness, and heat-proof quality does not reduce.

In addition, vacuum thermal insulator body 54 attaches after soft parts 53 are attached on the outer container 51 again, also can in advance soft parts 53 be attached to vacuum thermal insulator body 54 after, be attached to again on the outer container 51.

(embodiment 4)

Figure 11 is the sectional view of sidewall major part of the refrigerator of embodiments of the present invention 4.Basic structure in addition is identical with embodiment 1.

As the hard part 56 that is arranged on the middle insertion parts between vacuum thermal insulator body 54 and the outer container 51, by making than vacuum thermal insulator body 54 hard parts.For example, be made of the ABS sheet, its thickness specifically is preferably below the 3mm less than the flatness of vacuum thermal insulator body 54.

Utilize said structure, can prevent that outer carton deformed reasons such as the concave-convex surface of vacuum thermal insulator body 54 and amount of deflection from reaching the outer surface of outer container, prevents the distortion of outer container outer surface.In addition, owing to can do the thickness of hard part 56 thinner, therefore can suppress influence to heat-proof quality.

(embodiment 5)

Figure 12 is the sectional view of the refrigerator sidewall major part of embodiments of the present invention 5.Basic structure in addition is identical with embodiment 1.

In the drawings, between vacuum thermal insulator body 54 and outer container 51, dispose soft parts 53 and hard part 56.As configuration sequence, from outer container 51 sides, configuration hard part 56, soft parts 53 and vacuum thermal insulator body 54.

Utilize said structure, soft parts 53 absorb the outer container deformation reason such as concavo-convex and amount of deflection on the surface of vacuum thermal insulator body 54, and hard part 56 can prevent the transmission of outer carton deformed reason, can prevent the distortion of outer container outer surface reliably.

In addition, as middle insertion parts, begin to dispose successively hard part 56, soft parts 53 and vacuum thermal insulator body 54 from outer container 51 sides, therefore, soft parts 53 can prevent the breakage of the outer cladding material of vacuum thermal insulator body.

(embodiment 6)

Figure 13～Figure 15 is the sectional view of the various vacuum thermal insulator bodies that use in the refrigerator of embodiments of the present invention 6.Basic structure in addition is identical with embodiment 1.

With 58 sealings of first outer covering piece, keep vacuum state after the exhaust gas inside around the core material 57 of inclosure vacuum thermal insulator body inside.In addition, the periphery of first outer covering piece 58 covers with second outer covering piece 59, makes dual structure.In Figure 13, gas is enclosed in the space 60 between first outer covering piece 58 and second outer covering piece 59.As gas, use air or non-active gas.

Like this, the concavo-convex and amount of deflection on the surface of the core material 57 of inclosure vacuum thermal insulator body inside etc. produces the periphery of first outer covering piece 58 of outer carton deformed, covers with second outer covering piece 59, makes dual structure.Like this, second outer covering piece 59 absorbs the outer container deformation reason, prevents the distortion of outer container outer surface.Gas is enclosed between the outer covering piece 58,59 of dual structure.Like this, the space 60 of having enclosed the gas between the outer covering piece 58,59 of dual structure absorbs the outer container deformation reason such as concavo-convex and amount of deflection of vacuum thermal insulator surfaces, can prevent the distortion of outer container outer surface.

And for example shown in Figure 14, the thickness t 3 of the outer covering piece 59B of dual structure is thicker than the thickness t 2 of other outer covering piece 59A, is attached on the outer container 12 outer covering piece 59B side also passable.In this case, because the thickness t 3 of outer covering piece 59B is thick, this thickness t 3 can absorb the outer carton deformed reason of the concavo-convex and amount of deflection of vacuum thermal insulator surface etc., can prevent the distortion of outer container outer surface.

And for example shown in Figure 15, the periphery with second outer covering piece, 59 coverings, first outer covering piece 58 makes dual structure, also soft parts 61 can be enclosed between the outer covering piece of dual structures.In this case, soft parts 61 absorb the outer container deformation reason such as concavo-convex and amount of deflection of vacuum thermal insulator surface, prevent the distortion of outer container outer surface.In addition, soft parts 61 have the effect of protection vacuum thermal insulator body, can improve the reliability of vacuum thermal insulator body.

(embodiment 7)

The stereogram of the plane of the state of Figure 16 before, Figure 17 state after for the outer container warpage of the same refrigerator of expression for the outer container warpage of refrigerator of expression embodiments of the present invention 7.The sectional view of the major part of the vacuum thermal insulator body that Figure 18 uses for same refrigerator, Figure 19 is the sectional view of the amplification of the part of the vacuum thermal insulator body that is suitable for same refrigerator and uses, and Figure 20 be the exploded perspective view that the polyurethane of same refrigerator injects the major part of the aluminium strip other end after foaming.In addition, basic structure is identical with embodiment 1.

Before outer container 62 warpages of making by steel plate for dull and stereotyped.The radiating tube 63 that constitutes freeze cycle is fixed on the outer container 62 by the aluminium strip 64 as fixed part, and vacuum thermal insulator body 65,66,67 utilizes fixed thereon of the adhering part of heat fusing etc.Warpage outer container 62 on joggling part 69 is with backplate 70, base plate 71, interior case (not illustrating among the figure) combination.Then, with hard polyurethane foams filling-foam in the space that constitutes by outer container 62 and interior case.Therefore, not with polyurethane foam fills in the Machine Room component part 68 of the compressor of placing freeze cycle etc., with external communications.In addition, fixedly an end 64A of the aluminium strip 64 of radiating tube 63 extends to mechanical component part 68.The other end 64B of aluminium strip 64 is positioned at the inboard of vacuum thermal insulator body 65.

Vacuum thermal insulator body 65 utilizes the pressing part 73 of forcing press 72 to make groove 74 after finishing.Vacuum thermal insulator body 65 disposes and is fixed on the outer container 62, so that radiating tube 63 is put into groove 74.

When radiating tube 63 being configured between outer container 62 and the vacuum thermal insulator body 65, between outer container 62 and aluminium strip 64, produce first space part 76.In addition, between the groove 74 of aluminium strip 64 and vacuum thermal insulator body 65, form second space part 77.

Adopt said structure, because an end 64A of aluminium strip 64 extends to mechanism's chamber component part 68, so first space part 76 and second space part 77 and the external communications.Like this, gas such as foamed gas can not be trapped in the space part 76,77.Therefore, the variation of environment temperature can not make space part 76,77 expand and shrink, and can prevent the outer surface distortion of outer container 62 of the configuration section of radiating tube 63.

In addition, when an end 64A of aluminium strip 64 extends to mechanism's chamber component part 68, make other end 64B also be positioned at inside than the end of vacuum thermal insulator body 65.When hard polyurethane foams 75 foaming, some polyurethane foams 75 are invaded from the gap of vacuum thermal insulator body 65 and radiating tube 63.But as shown in figure 20, utilize this structure, can not reach the other end 64B of aluminium strip 64.Therefore, because near the space part 76,77 the other end 64B side of aluminium strip 64 interconnects, therefore, the gas in the space part 76,77 is expelled to outside the storehouse reposefully.Like this, the variation of environment temperature can not make above-mentioned space expand and shrink, and can prevent the distortion of outer surface of outer container 62 of the mounting portion of radiating tube 63 reliably.

In addition, after vacuum thermal insulator body 65 is finished, utilize the pressing part 73 of forcing press 72, form relative with radiating tube 63, the groove 74 of in vacuum thermal insulator body 65, making.Thereby do not need on the core material of vacuum thermal insulator body 65, to make groove in advance, can make the manufacturing process of vacuum thermal insulator body simple.

In the above description, the aluminium strip as fixed part has been described,, material has been had no particular limits so long as have the band of cementability.Preferably have heat conductivity.

(embodiment 8)

Figure 21 is the sectional view that the major part of the refrigerator of embodiment of the present invention 8 is amplified.Basic structure in addition is identical with embodiment 1.

The aperture 78 made from forcing press etc. on the outer surface of outer container 62 is corresponding with the placement part of vacuum thermal insulator body 65 in advance.On outer container 62, be in line and make a plurality of apertures.

In said structure, the gas in the space of vacuum thermal insulator body 65 and outer container 62 is the main cause of the outer carton deformed that causes such as the concave-convex surface of vacuum thermal insulator body 65 and amount of deflection.This gas is discharged outside the storehouse reposefully by aperture 78.Therefore, the variation of environment temperature can not make the space expand and shrink, and can prevent the distortion of outer surface of the outer container 62 of vacuum thermal insulator body 65 configuration portions.

It is also passable that the configuration of aperture 78 is not limited to straight line, shaped form, polygonal.

(embodiment 9)

When cutting off the refrigerator of embodiments of the present invention 9 about Figure 22 A is illustrated in, see the sectional view of the situation of left part from the right side, when Figure 23 A is the cut-out of same refrigerator front and back, see the sectional view of the situation of rear section from the front.

In the basic structure of the refrigerator of present embodiment, the collocation method that different with embodiment 1 is for the vacuum thermal insulator body.That is: vacuum thermal insulator body 32,33A, 33B, 34 are connected attaching with the inboard of the end face of outer container 12, the back side, upper side respectively.In addition, vacuum thermal insulator body 35,34A, 36 are connected attaching with the formation face of the bottom surface of interior case 11, lower side, Machine Room 20 respectively.In addition, the refrigerating chamber that vacuum thermal insulator body 38,39,40,41 is separately positioned in the front openings portion that is provided in refrigerator 10 uses door 28 and refrigerating chamber with the inside of door 29,31 with door 27, vegetable compartment, is connected with the outside iron plate of each.

According to present embodiment, because each vacuum thermal insulator body is configured in inside and outside the heat insulating box by the big place of thermal gradient.Therefore can under the high state of vacuum thermal insulator body value, suppress the heat absorption load effectively, can improve energy-saving effect.

In addition, with each vacuum thermal insulator body on adjacent two sides, end face, the back side and the fronts of refrigerator with outer container 12 configuration of joining, configuration and the face of bottom surface and formation Machine Room 20 and interior case 11 join.Therefore, vacuum thermal insulator body 35, the 34A, 36,37 that is configured on the surface temperature of outer container 12 high two sides, bottom, bottom surface and the Machine Room 20 can not become high temperature.Like this, the vacuum heat-insulation performance can be changed in time and degenerate and suppress, can improve vacuum thermal insulator body 35,34A, 36,37 long-term reliability to bottom line.

Because the vacuum thermal insulator body 34A of two sides, bottom joins with interior case 11 sets, avoided the telescoping part and the pipeline of the complexity between the outer container 12, so can prevent vacuum thermal insulator body 34A breakage again.That is: by in two sides, complex-shaped bottom of outer container 12,, can improve reliability with the configuration of joining of vacuum insulation 34A and interior case 11.

Again because the vacuum thermal insulator body 32 of end face joins with outer container 12 sets, in therefore the installing component that the storehouse intraoral illumination can be used or electric wire (not illustrating among the figure) are installed on the end face of case 11.Therefore, illumination can be located on the end face of refrigerating chamber 15, use more convenient.

By vacuum thermal insulator body 33A, 33B being configured in the back side of heat insulating box, can not become the obstruction of pipeline with the drainpipe (not illustrating among the figure) of the defrost water of getting rid of cooler 22,24 of cooling device in these vacuum thermal insulator bodies.In addition, backplate and vacuum thermal insulator body 33A, 33B can be integral installation, manufacturing process is preferred.

Because each vacuum thermal insulator body is connected with in the interior case 11 any one with the outer container 12 of the heat insulating box of formation refrigerator, can guarantee formation space length again as the hard polyurethane foams 13 of foamed resin.Therefore, because the heat-proof quality coarse or that blow weak causes of polyurethane foam 13 reduces, can not keep the intensity of casing, outward appearance is good.

Form refrigerating chamber 18A, 19 the heat insulating box in freezing zone and form the refrigerating chamber 15 of cool storage area identical with embodiment 1, therefore omit it and illustrate that the coverage rate of the outer surface of refrigerator 10 too with the heat insulation wall thickness of the heat insulating box of vegetable compartment 16.

After being configured in vacuum thermal insulator body 33A, 33B on the backplate in advance, flat board is flexed into the コ font and the side and the end face that are shaped engage, form outer container 12.At this moment, preferably vacuum thermal insulator body 33A, 33B are configured to be positioned near the seam that forms outer container 12.That is: make vacuum thermal insulator body 33A, 33B and backplate size roughly the same.Like this, can improve heat-proof quality.

Preferably, in advance each vacuum thermal insulator body is configured in outer container 12 or the interior case 11, like this,, easy to manufacture by the assembling casing.

Preferably, little with interior case 11 case 11 that joins in the vacuum thermal insulator body 35 that sets, 34A, 36,37 the projected area ratio.In other words, join with interior case 11 that do not set each face of vacuum thermal insulator body 35,34A, 36,37 interior case 11 from joining outstanding for the vacuum thermal insulator body 35, the 34A, 36,37 that set.

In this structure, after vacuum thermal insulator body 35,34A, 36,37 are configured in given place, polyurethane foam 13 is flowed between outer container 12 and the interior case 11.In this case, from the power of interior case 11 direction of delaminate be not added on be configured on the vacuum thermal insulator body 35,34A, 36,37 of case 11.Therefore can prevent that vacuum thermal insulator body 35,34A, 36,37 that the inflow by polyurethane foam 13 causes from peeling off.In addition, when can making vacuum thermal insulator body 35,34A, 36,37 attaching stable easily, do not hinder the flowability of polyurethane foam 13.

In addition, preferred, set on the surface of vacuum thermal insulator body 35,34A, 36 interior case 11 joining, the protuberance 11A in each the external week of vacuum thermal insulator of encirclement shown in Figure 23 B is set or places the recess 11B that accommodates each vacuum thermal insulator body shown in Figure 23 C.Protuberance 11A has the stage portion that is connected with external week of vacuum thermal insulator with recess 11B.Utilize step can reduce the area that exposes of each vacuum thermal insulator body end face.

Like this, by step is set,, can prevent the breakage of each vacuum thermal insulator body at 36 o'clock pasting vacuum thermal insulator body 35,34A, locating easily.In addition, also can prevent peeling off of each vacuum thermal insulator body that the inflow of polyurethane foam 13 causes.When protuberance 11A was set, interior case 11 and vacuum thermal insulator body 35,34A, 36 step difference reduced, and can not hinder the flowability of polyurethane foam 13.When recess 11B was set, the Mould Machining of interior case 11 was easy, and step itself can strengthen in case 11, attach vacuum thermal insulator body 35,34A, 36 easily.

In addition, under the situation of the bottom that vacuum thermal insulator body 36 is configured in cooling end 24, shown in Figure 22 B, preferably heat insulating member 36A is configured in the bottom of cooler 24 or the inner face of interior case 11, guarantee flat shape, making defrost water above the heat insulating member 36A and handle the given tilted shape of usefulness, is planar shaped below, connects airtight with interior case 11.Lowest part on heat insulating member 36A is done to portal.The path that defrost water is discharged to the outside from this hole is set.

Owing to utilize heat insulating member 36A, the face that is positioned at the case 11 of cooler 24 belows is the plane, does not have rake on the face of interior case 11, therefore can attach vacuum thermal insulator body 36 expeditiously.Can also prevent peeling off of vacuum thermal insulator body 36 that the inflow of polyurethane foam 13 causes.In addition, not the plane of tilted shape owing to paste the part of vacuum thermal insulator body 36, the length of side is short, therefore can reduce vacuum thermal insulator body 36.Because the length of side is short, can reduce the heat absorption load in the refrigerator.

In the above description, the inner face of the interior case 11 of the below of the cooler 24 of configuration heat insulating member 36A is the plane, but the below of the cooler 24 of interior case 11 is made the inclined plane, and is also passable at the outside configuration heat insulating member 36A of the interior case 11 of this part.In this case, in advance vacuum thermal insulator body 36A is configured on the vacuum heat-insulation parts 36, carries out the assembling of casing, can make easy to manufacture.

In addition, shown in Figure 23 A, preferably make air in the polyurethane foam 13 at the depth face of interior case 11 and discharge and to use hole 11C.Utilize this structure, need not make the air discharge at the back side of outer container 12 and use the hole, can dispose vacuum thermal insulator body 33A.In addition, on outer container 12, do not have air to discharge and use the hole, can guarantee beautiful appearance.Can also with the outer container back side dual-purpose of the refrigerator of other structures, therefore can reduce number of parts and operation number.

And for example shown in Figure 23 A, the boundary portion of vacuum thermal insulator body 34 and vacuum thermal insulator body 34A preferably constitutes vacuum thermal insulator body 34 and vacuum thermal insulator body 34A overlaps.In the present embodiment, with the join position of lower end of the vacuum thermal insulator body 34 that sets of the outer container 12 of two sides, top of refrigerator 10, lower than the join position of upper end of the vacuum thermal insulator body 34A that sets of the interior case 11 with the two sides, bottom.When on the two sides that vacuum thermal insulator body 34,34A are configured in refrigerator 10, above-below direction departs from.In addition, the dimensional accuracy of vacuum thermal insulator body 34,34A is low.In this case, the vacuum thermal insulator body can be on the whole surface of two sides of refrigerator 10, or exists in outer container 12 and interior case 11 at least one.Because like this, the effect of heat insulation of vacuum thermal insulator body 34,34A can not damage, and can not hinder flowing of polyurethane foam 13, can reach stable flowing.

In order to attach vacuum thermal insulator body 35,36 easily and effectively, preferred interior case 11 is the plane at width.In the present embodiment, the outside, bottom surface that makes vacuum thermal insulator body 35,36 and form the interior case 11 on plane on the width of refrigerator 10 joins and sets.Utilize this structure, can enlarge the area of attachment of the vacuum thermal insulator body 35,36 on the bottom surface of interior case 11, simultaneously, can reduce the area of bottom surface, improve energy-saving effect.Like this, can improve the attaching of vacuum thermal insulator body 35,36.

When configuration vacuum thermal insulator body 32,33A, 33B, 35,34,34A, 36,37,38,39,40,41 the time preferably before attaching, remove the foreign matter on the attaching face.In the present embodiment, before the vacuum thermal insulator consideration is attached, remove the foreign matter on each vacuum thermal insulator body abutted surface.Like this, can not improve the reliability that attaches operation because of foreign matter makes each vacuum thermal insulator body breakage.

(embodiment 10)

Figure 24 is the longitudinal section of the amplification of the major part of the vacuum thermal insulator body that uses in the refrigerator of present embodiment.Figure 25, Figure 26 are the partial cross section enlarged drawing of the refrigerator of same embodiment.The basic structure of refrigerator integral body is identical with embodiment 1 or embodiment 9.

There is core material 92 vacuum thermal insulator body 91 inside.Core material 92 is made by inorfil aggregates such as glass wools.Vacuum thermal insulator body 91 is by behind heat drying core material 92, and it is inserted in the outer covering piece of applying evaporation layer film 93 and metal foil layer film 97, and inside vacuumizes, and sealed open portion forms.

Metal evaporation layer film 93 is for clamping the composite plastic film behind the aluminium-vapour deposition film 95 with nylon film 94 and density polyethylene film with high 96.Metal foil layer film 97 is for clamping the composite plastic film of aluminium foil 99 with nylon film 98 and density polyethylene film with high 100.

In addition, the sealing surface of evaporated film 93 and metal foil layer film 97 is evaporation layer film 93 sides to be made plane, constitutes the face of metal foil layer film 97 sides three-dimensionally.In addition, evaporation layer film 93 sides and outer container 12 or interior case 11 configuration of joining.That is: in vacuum thermal insulator body 91, utilize evaporation layer film 93 to constitute the plane that the height thermal insulation must be arranged with aluminium-vapour deposition film 95.In addition, another face of the gas shield of height must be arranged, constitute by metal foil layer film 97 with metal forming 99.Thereby the sealing surface of two films 93,97 and the plane of evaporation layer film 93 sides are positioned on the same plane.Utilize such structure, handle the limit wing of sealing surface easily, can utilize the good vacuum thermal insulator body 91 of the high heat-proof quality of reliability simultaneously.

Figure 25, shown in Figure 26 and for example, inboard or interior case 11 outsides of the plane of coating film 93 sides of the vacuum thermal insulator body 91 of present embodiment and outer container 12 join and set.Like this, can dispose the good vacuum thermal insulator body 91 of the high heat-proof quality of reliability effectively, therefore the limit portion that does not need to handle sealing surface.

In addition, do not attach complex-shaped vacuum thermal insulator body, perhaps on the reliability of guaranteeing the vacuum thermal insulator body very part and parcel, use the two sides all to have the vacuum thermal insulator body of metal forming film at interior case 11 and outer container 12 both sides.

By on the film of two faces that constitute metallic insulation spare, the metal forming film that the using gases barrier is high is even under the situation that the face of two faces of vacuum thermal insulator body and complicated shape joins, also can utilize the high vacuum thermal insulator body of reliability.Because two faces are identical materials, cost can reduce again.Because two floorings are identical, when being attached on outer container 12 or the interior case 11, do not have the amiss worry of attaching face of vacuum thermal insulator body, operation is easy.

The fibre diameter of the preferred inorfil aggregate that constitutes core material 92 in 0.1 μ m-1.0 mu m range, with the pyroconductivity of hard polyurethane foams 13 relatively, constitute vacuum thermal insulator body with thermal conducting rate of about 1/10.When the pyroconductivity of polyurethane foam 13 is 0.015W/mK, the pyroconductivity of vacuum thermal insulator body 91 is 0.0015W/mK.In addition, the pyroconductivity of vacuum thermal insulator body 91 according to selection of the fibre diameter of inorfil aggregate etc., also can be 0.0010W/mK-0.0030W/mK.That is: the ratio ranges of the 1/15-1/5 of the pyroconductivity of polyurethane foam 13 also can.Under the thin situation of the multiple layer thermal wall thickness rate of polyurethane foam 13 and vacuum thermal insulator body 91, owing to do not hinder the flowability of polyurethane foam 13, even the reduced thickness of vacuum thermal insulator body 91 also can be brought into play the heat-proof quality as multiple layer thermal wall effectively.In addition, in order to realize high coverage rate,, can bring into play energy-conservation effect by the result of expectation at the thin place configuration vacuum thermal insulator body of wall thickness.

(embodiment 11)

Figure 27 is the amplification sectional view of major part of the refrigerator of embodiments of the present invention 11, and structure in addition is identical with embodiment 1.

In the drawings, the outer cover of vacuum thermal insulator body 79 has the film 80 of aluminium-vapour deposition layer by a surface, and another surface is made of the film 81 with aluminium foil.Film 80 is attached on the outer container 62, the sealing 82 of film 80 and film 81, and warpage is configured on the hard polyurethane foams 75.

In said structure, the pyroconductivity of film 80 with aluminium-vapour deposition layer is low, and gas permeation rate is bigger than film 81.In addition, the gas permeation rate of film 81 with aluminium foil is low, thermal conductivity ratio film 80 height.Therefore be polyurethane foam 75 side warpage sealings 82 as being easy to film 81 sides in the heat conduction, elongated in the heat that film 81 transmits to the mobile route of outer container 62.In addition, the distance left of sealing 82 and outer container 62 is big.Like this, suppress heat, can improve thermal insulation by the transmission of film to outer container 62.

In the above description, illustrated to utilize to have the film of aluminium-vapour deposition layer and the film with aluminum metallic foil, it is also passable to use other metals to constitute.

Present embodiment, though with embodiment 1 as bright basically, also can and constitute with the feature combination of explanation in other embodiments.Also can make up with feature by later embodiment explanation.

(embodiment 12)

Figure 28 is the cross-sectional view of the refrigerator of embodiments of the present invention 12, and Figure 29 is near the enlarged drawing of the part of the radiating tube of same refrigerator.Basic structure in addition is identical with embodiment 1 or embodiment 9.

As the radiating tube 101 of the condenser of a part that constitutes freeze cycle, joining with the side of outer container 12 or the back side sets, and face utilizes the good aluminium strip 102 that conducts heat to be fixed on the outer container 12 from it.Aluminium strip 102 double as seals use.Configuration vacuum thermal insulator body 34 is to cover radiating tube 101.Aluminium strip 102 is configured in outside the storehouse, utilizes this structure, and vacuum thermal insulator body 34 can make the heat of radiating tube 101 be cut off reliably, reduces the heat absorption load in the refrigerator effectively.In addition, because aluminium strip 102 is configured in outside the storehouse, the air between radiating tube 101 and the outer container 12 can freely move outside the storehouse, like this, can suppress the convex-concave and the fluctuation on outer container 12 surfaces that the thermal contraction by air causes, and keeps the beauty of outward appearance.In addition, the air capacity between radiating tube 101 and the outer container 12 needn't be considered, the attaching operation of radiating tube 101 is carried out easily.

In addition, aluminium strip 102 is preferably cut apart in the centre or is provided with porose.Like this, the air between radiating tube 101 and the vacuum thermal insulator body 34 can freely move outside the storehouse.Therefore, can suppress the concave-convex surface or the fluctuation of the outer container 12 that the thermal contraction of air causes, keep the beauty of outward appearance.In addition, the air capacity between radiating tube 101 and the vacuum thermal insulator body 34 needn't be considered, the attaching operation of radiating tube 101 is carried out easily.

When radiating tube 101 is set, can on vacuum thermal insulator body 34, assemble in advance, be arranged on then on the outer container 12.In this case, can be configured in the inboard of outer container 12 with radiating tube 101 being contained in vacuum thermal insulator body 34 behind the face that joins with outer container 12.Adopt this structure, the space between radiating tube 101 and the vacuum thermal insulator body 34, the comparable situation that radiating tube 101 is fixed on the inboard of outer container 12 clamp radiating tube 101 between outer container 12 and vacuum thermal insulator body 34 before reduces.Therefore, can suppress the convex-concave or the fluctuation on outer container 12 surfaces, keep the beauty of outward appearance.In addition, can improve the effect of heat insulation and the raising energy-saving effect of vacuum thermal insulator body 34.Since can be in advance with radiating tube 101 assembled configuration on vacuum thermal insulator body 34, therefore easy to manufacture.

In above structure, owing to being clamped, radiating tube 101 is installed between outer container 12 and the vacuum thermal insulator body 34, and can utilize vacuum thermal insulator body 34 that the heat of radiating tube 101 is cut off, therefore can reduce the heat absorption load in the refrigerator effectively.

(embodiment 13)

Figure 30 is the preceding stereogram of the dull and stereotyped warpage of outer container of the refrigerator of embodiments of the present invention 13.Basic structure in addition is identical with embodiment 1 or embodiment 9.

Radiating tube 101 joins with face 107 as the side of outer container 12 and sets, and on the face 106 as end face radiating tube 61 is not set, and in other words, radiating tube 101 is avoided the place as the end face of refrigerator, is configured in the inboard of outer container 12.Adopt this structure, can utilize vacuum thermal insulator body 34 heat of isolated radiating tube 101 reliably, reduce the heat absorption load in refrigerator.In addition, because good than hard polyurethane foams 13 of the heat-proof quality of vacuum thermal insulator body 34, can reduce the caloric receptivity of refrigerator, therefore configuration radiating tube 101 on end face 106 not.Like this, vacuum thermal insulator body 32 is attached on the end face easily, improves energy-conservation effect.

Again because on end face 106, there is not radiating tube 101, the simple shape of radiating tube 101, processability is good, and operation is cut down fee of material and can be reduced.Again owing on end face 106, there is not a radiating tube 101, can with the radiating tube dual-purpose of the refrigerator of other structures.

(embodiment 14)

Figure 31 is the enlarged drawing of major part of the refrigerator of embodiments of the present invention 14.Basic structure in addition is identical with embodiment 1 or embodiment 9.

Vacuum thermal insulator body 34 joins with outer container 12 and sets, and the diaphragm seal band of vacuum thermal insulator body 34 is set on the inflow direction of polyurethane foam 13.In other words, be not positioned at the diaphragm seal band of vacuum thermal insulator body 34 under the state of inflow direction of polyurethane foam 13, vacuum thermal insulator body 34 is configured between outer container 12 and the interior case 11.Adopt said structure, vacuum thermal insulator body 34 does not hinder flowing of polyurethane foam 13, and can make flows stablizes.

Polyurethane foam 13 when injecting between outer container 12 and the interior case 11 in addition is high wet condition, owing to directly do not join with the diaphragm seal band, is not subjected to thermal stress, can prevent the mis-behave of vacuum thermal insulator body 34.

In addition, the band number reduces, and vacuum thermal insulator body 34 can be kept high gas shield.

(embodiment 15)

Figure 32 is the sectional view of the refrigerator major part of embodiments of the present invention 15.Basic structure in addition is identical with embodiment 9.

Vacuum thermal insulator body 34A preferentially is configured in the place of (not illustrating among the figure) foreign material such as defrost water pipeline 112 and circuit.That is: in the present embodiment, between outer container 12 and interior case 11, vacuum thermal insulator body 34A is configured in the place at foreign material (defrosting water pipe 72 and the circuit etc.) place of the flowability that might hinder hard polyurethane foams 13.Like this, utilize vacuum thermal insulator body 34A, can suppress the heat absorption load of refrigerator effectively, improve energy-saving effect.In addition, because vacuum thermal insulator body 34A is configured in the place at the foreign material place of the flowability that might hinder polyurethane foam 31, so can guarantee heat-proof quality.

In addition, when defrosting water pipe 112 is set, preferably be arranged between vacuum thermal insulator body 34A and the outer container 12.Utilize vacuum thermal insulator body 34A, can be incubated, can prevent refrigerating chamber 18A, the influence of 19 storehouse temperature, make the defrost water cooling and freeze for defrost water.

(embodiment 16)

Figure 33 is the sectional view of major part of the refrigerator of embodiments of the present invention 16.Basic structure in addition is identical with embodiment 1 or embodiment 9.

Positioning element when in the present embodiment, guard block 113 double as of protecting the end face of outer container 12 being attached vacuum thermal insulator body 34 is used.That is: use the guard block 113 be arranged on outer container 12 end faces to carry out the location of vacuum thermal insulator body 34, with the end face of protection vacuum thermal insulator body 34.Like this, the guard block 113 of shared outer container 12 end faces and the location parts of vacuum thermal insulator body 34.The breakage of the vacuum thermal insulator body 34 in the time of therefore can preventing to assemble, the location that vacuum thermal insulator body 34 is attached is easy, the operation raising.

Guard block 113 is arranged on the top board, the end face of protection vacuum thermal insulator body 32, the positioning element in the time of also can the double as assembling is used.

(embodiment 17)

Figure 34 is illustrated in the structure chart of the vacuum thermal insulator body that uses in the refrigerator of embodiments of the present invention 17.Core material 121 is different with the core material 92 of embodiment 10, makes by utilizing bond material to make tabular inorfil condensate.The polymeric constituent material of inorfil is not particularly limited, and can utilize the bond material of organic system or inorganic system to be configured as tabular glass fine hair, ceramic fibre, asbestos inorfils such as (rock wool) etc.

Gas shield film 122 is made pouch by sealing 123.Gas shield film 122 keeps inner airtight.Have no particular limits as its material formation.For example, can constitute equally with the evaporated film 93 and the metal foil layer film 97 of embodiment 10.That is: a side be outermost layer by pet resin form, the intermediate layer is by aluminium foil forms, innermost layer is formed by high-density polyethylene resin plastic lamination film.The opposing party for outermost layer by pet resin form, the intermediate layer by the ethylene-vinyl alcohol EVA resin with aluminium-vapour deposition layer form, innermost layer is made of the plastic lamination film that high-density polyethylene resin forms.These are made pouch.

As vacuum thermal insulator system making method, be that core material is inserted in the gas shield film 122 of bag shape, inner vacuumizing and exhausting, peristome seals with frit seal 124, the inner vacuum that keeps.

Figure 35, Figure 36 are respectively the side cross-sectional, view and the elevational sectional view of the refrigerator of present embodiment.Basic structure is identical with embodiment 9.In Figure 36, make the vacuum thermal insulator body 34 of the outer container inboard that is configured in the side, extend to cool storage area.In addition, have the join vacuum thermal insulator body 34B that sets of interior case 11 with heat insulating box 10A and replace being configured in vacuum thermal insulator body 34A on the interior case outside of side corresponding to the bottom, side of refrigerating chamber 19.In addition, vacuum thermal insulator body 34 and vacuum thermal insulator body 34B dispose the opposing end faces portion of leaving near being positioned at the upper surface of Machine Room 20.The lower end of vacuum thermal insulator body 34 is positioned under the upper end of vacuum thermal insulator body 34B, even such structure is also same with embodiment 9, can bring into play the effect of heat insulation in the side.That is: be configured in the lower surface of vacuum thermal insulator body 34 and side the interior case outside the vacuum thermal insulator body the upper end the lap position without limits.Vacuum thermal insulator body 34,34B are located at separating on the insulation part of the Machine Room 20 that holds compressor 21 and Ku Nei.Inside-of-refrigerator is-20 ℃ a refrigerating chamber 19, and Machine Room 20 is 40-50 ℃.That is: it is heat insulation that vacuum thermal insulator body 34,34B can make the wall thickness in the temperature difference bigger Machine Room 20 and refrigerating chamber 19 storehouses effectively.In addition, hard polyurethane foams 13 is being injected under the situation of heat insulating box 10A, generally at first the front openings portion of heat insulating box 10A is being configured in the below.Short transverse from about the back side of this heat insulating box 10A is arranged on the polyurethane inlet in two places of substantial middle portion again, injects the stoste of polyurethane foam 13.The following place that is flowing in the polyurethane inlet in above-mentioned two places of Fa Pao polyurethane foam 13 is the center like this, is fan-shaped and widens.The final place of arrival of polyurethane foam 13 is the formation face of the top part of heat insulating box 10A and bottom surface sections, Machine Room 20.In the present embodiment, vacuum thermal insulator body 36 that flatness is high is configured on the formation face of Machine Room 20 in place of the final arrival that becomes polyurethane foam 13.Because like this, can guarantee near the bulk of final place of arrival of polyurethane foam 13 reliably, given heat-proof quality is guaranteed in the filling that improves polyurethane foam 13.

The coverage rate of the heat insulation wall thickness of heat insulating box 10A and the outer surface of refrigerator 10, identical with embodiment 1, omit its explanation.

As mentioned above, vacuum thermal insulator body 32,33,34,34B, 35,36,37,38,39,40,41 are for covering the part that utilizes bond material that core material 121 is made flat inorfil aggregate and inner vacuumizing and exhausting is formed again with gas shield film 122.In addition, with polyurethane foam 13, constitute heat insulating box 10A.

Vacuum thermal insulator body shown in Figure 34 also can adopt in other embodiments.

Vacuum thermal insulator body 34B, 35,36 also can make the shape of core material 121 along the face that joins with interior case 11 in advance, is shaped with bond material.By such shaping, on interior case 11 and vacuum thermal insulator body 34B, 35,36 contact-making surface, do not produce space layer (space).Therefore, the fluctuation of interior case 11 etc. can be prevented, the grade of outward appearance can be improved.

In the described test method of the JIS-K7221 of Japanese Industrial Standards, preferably making vacuum thermal insulator body 32,33,34,34B, 35,36,37,38,39,40,41 crooked epistasis rate is 40～64MPa.So-called crooked elastic rate is the bending stress in crooked proportional limit and the ratio of the distortion corresponding with it.Because the crooked elastic rate of polyurethane foam 13 is about 8MPa, the crooked elastic rate that preferably makes the vacuum thermal insulator body is its 5～8 times.

The strength test result of the heat insulating box of the vacuum thermal insulator body that the use crooked elastic rate is different is as shown in table 1.As test method, when refrigerating chamber that the food of about 30kg is packed into is used on the door 27, measure the horizontal left and right directions displacement of the side topmost of heat insulating box 10A.

Table 1

	Exemplar A	Exemplar B	Exemplar C
				The heat insulating box specification	Only use hard polyurethane foams	Vacuum thermal insulator body+hard polyurethane foams	Vacuum thermal insulator body+hard polyurethane foams
The crooked elastic rate of vacuum thermal insulator body	??——	??20MPa	??40MPa
				The side distortion of heat insulating box	??3mm	??4mm	??3mm

Can find out that from above result heat insulating box 10A intensity makes under the situation of lamination at the vacuum thermal insulator body that hard polyurethane foams and crooked elastic rate is reached 40MPa, with only the intensity with hard polyurethane foams (A) is identical.This is because thermal wall is become sandwich construction from single structure, and the bending strength reduction is caused.Therefore, by using the vacuum thermal insulator body of crooked elastic rate more than 40MPa, can become intensity and surpass the sandwich construction of only using hard polyurethane foams, because the crooked elastic rate of hard polyurethane foams is 8MPa, by the crooked elastic rate that makes the vacuum thermal insulator body is more than 5 times of hard polyurethane foams, and then the intensity of the heat insulating box of sandwich construction becomes more than the equality strength.

In order to improve the bending strength of vacuum thermal insulator body, can realize by making the selected of tabular bond material at inorfil aggregate or increasing use amount with core material 121.This can make the cost when making improve.Therefore, the 64MPa of the crooked elastic rate of vacuum thermal insulator body is the upper limit of cost-performance.That is: be more than 5 times below-8 times of hard polyurethane foams by the crooked elastic rate that makes the vacuum thermal insulator body, then can make the intensity of the heat insulating box of sandwich construction, satisfy the cost-performance ratio, and can reach identical more than.

Vacuum thermal insulator body with this bending strength as mentioned above, utilizes gas shield film 122 to be covered with and utilizes bond material that core material 121 is made flat inorfil aggregate, by to inner vacuumizing and exhausting manufacturing.Compare with the vacuum thermal insulator body that only is core material,, can improve compressive resistance, bending strength and the flatness of vacuum thermal insulator body by utilizing the bonding and shaping inorfil aggregate of bond material with the inorfil assembly-use.Therefore, under the situation of using this vacuum thermal insulator body, the intensity of heat insulating box 10A improves.Like this, can keep high flatness assemble in the inside of heat insulating box 10A, can guarantee the size of the flowing space of the polyurethane foam 13 that forms in the inside of heat insulating box 10A.Therefore, the flowability when injecting polyurethane foam 13 improves, and the pack completeness of polyurethane foam 13 improves, and can obtain given heat-proof quality.

In addition, by improving vacuum thermal insulator body 32,33,34,34B, 35,36,37,38,39,40,41 flatness, can get rid of by the space segment of bonding agent with the face that directly contacts.As a result, with the cementability raising of bonding plane, coming off, falling of the vacuum thermal insulator body in the time of can preventing to make assembling improves reliability, can improve operation.In addition, by improving the flatness of these vacuum thermal insulator bodies, directly the flatness of the heat insulating box 10A of the face of contact also improves, and the outward appearance grade of refrigerator 10 improves.

In addition, by improving the intensity of vacuum thermal insulator body, discarded after taking out refrigerator easily and using and the vacuum thermal insulator body when disintegrating, the raising of recirculation property.

When with vacuum thermal insulator body 32,33,34,34B, 35,39,37,38,39,40,41 and the outside plate of interior case 11 or outer container 12 or door body when being adhesively fixed, preferably utilize roller that bonding agent is coated on the bonding plane comprehensively, can use the bonding agent of the heat fusing of making by elastomeric material as bonding agent.

Its vacuum thermal insulator body when changing bonding agent coating specification and the adhesive strength result of the test of outer container 12 are illustrated in the table 2.As test method,, in this test, ask width is made as the bonding force that 180 degree of the breadboard of 25mm are peeled off according to the 8th of the JIS-Z0237 of Japanese Industrial Standards.

Table 2

	Exemplar D	Exemplar E
			Bonding agent coating specification	Coating comprehensively	Straight line is pressed 10mm width coating (bond area is than 40%)
180 ° of bonding forces of peeling off (N/25mm width)	??30N	????16N

In addition, use the rubber-like hot melt adhesives as bonding agent, the test stock uses the material of stacked PETG on stainless steel.It is 30 μ m that one on roller back and forth makes the coating thickness of bonding agent, and the pressure when bonding is 2kg.Environment temperature is 23 ℃ during test.

Can find out that from the result of table 2 adhesive strength of coating is compared with the exemplar E under the situation of coating adhesive on the straight line in as the certain intervals of conventional method comprehensively, brings up to about 2 times.

Like this, in manufacturing process, vacuum thermal insulator body 32,33,34,34B, 35,36,37,38,39,40,41 do not come off and fall.Owing to vacuum thermal insulator body and interior case 11 or outer container 12 are adhesively fixed, so the intensity of heat insulating box 10A improves strongly.In addition,, on the bonding plane of each vacuum thermal insulator body and interior case 11 or outer container 12, do not produce the space, on the heat insulating box 10A of refrigerator 10, do not produce fluctuation, therefore can improve the grade of outward appearance by comprehensive coating adhesive.

In addition, vacuum thermal insulator body 32,33,34,38,39,40,41 and outer container 12 join and set.Like this, the vacuum thermal insulator body that flatness is high is configured on the outer container 12 that forms the plane, by coating adhesive on contact-making surface, does not produce space layer (space) on the contact-making surface of outer container 12 and these vacuum thermal insulator bodies; Therefore, can prevent the fluctuation of outer container 12 etc., improve the outward appearance grade.

In addition, by make vacuum thermal insulator body 34B, 35,36 and interior case 11 join and set, can suppress to be positioned at blowing agent condensing of the polyurethane foam plastics 13 of outer container 12 sides, improve the heat-proof quality of thermal wall.

Vacuum thermal insulator body 33,35,34,34B, 36 are located at the thermal wall inside corresponding with the cryogenic temperature band.Like this, can improve the heat-proof quality of the heat insulating box 10A corresponding effectively with the bigger cryogenic temperature band of temperature difference outside the storehouse.

In addition, on the big thermal wall part of the temperature difference of heat insulating box 10A, because can guarantee the flowing space of polyurethane foam 13, can guarantee the thickness of vacuum thermal insulator body to greatest extent, guarantee the internal volume of heat insulating box 10A, improve heat-proof quality simultaneously, this is very important, in the present embodiment example, core material 121 is made by utilizing bond material to form flat inorfil aggregate, and vacuum thermal insulator body 33,35,34,34B, 36 have high flatness.Therefore, on the big refrigerating chamber 18A of temperature difference, 19 thermal wall part, owing to guarantee the size of the flowing space of polyurethane foam 13, can guarantee vacuum thermal insulator body 33,35,34,34B, 36 thickness to greatest extent.Can provide heat-proof quality high refrigerator like this.

Vacuum thermal insulator body 38,39,40,41 is configured on the outside plate of thermal wall inside, and this thermal wall constitutes each door 27,28,29,30 that is arranged in the refrigerator front openings portion.Like this.Be configured on each outside plate of 27,28,29,30 of formation by the straight empty heat insulator 38,39,40,41 that flatness is high, each outside plate and the contact-making surface of each vacuum thermal insulator body on do not produce space layer (space), thereby can prevent from the fluctuation etc. of outer container 12 to improve the outward appearance grade.

In the present embodiment, use hydrocarbon for example pentamethylene as the blowing agent of polyurethane foam 13, with blowing agent such as existing freon system relatively, the environment of can preserving our planet, prevent warmization.In addition, because the vacuum thermal insulator body is by constituting as non-flame properties inorfil aggregate, even be under the situation of blowing agent using flammable hydrocarbon therefore, security is also high.In addition, utilize the high heat-proof quality of vacuum thermal insulator body, can compensate by using hydrocarbon is that the heat-proof quality that blowing agent causes reduces, and improves the heat-proof quality of heat insulating box.

In the present embodiment, as by compressor 21, condenser 26, refrigeration cooling medium, can use as the hydrocarbon of flammable natural cooling medium iso-butane for example with cooler 22, the freezing freeze cycle that constitutes with cooler 24.Like this, with existing freon be cooling medium relatively, the environment of can preserving our planet prevents to warm.In addition, because the vacuum thermal insulator body is under the situation of employing as the hydrocarbon of flammable cooling medium, safe by making as non-flame properties inorfil aggregate.

In the refrigerator of present embodiment, vacuum thermal insulator body and interior case 11 or outer container 12, or each outside plate joins fixingly, makes polyurethane foam 13 foaming at spatial portion.But as enforcement mode 1, the vacuum thermal insulator body is configured on the mid portion of interior case 11 and outer container 12, in spatial portion, makes 13 foaming of polyurethane foam also passable.In this case, the core material 121 of vacuum thermal insulator body is made by make tabular inorfil aggregate with bond material, and the vacuum thermal insulator body has high flatness.Because like this, the high accuracy of the size of the spatial portion of case 11 or outer container 12 and vacuum thermal insulator body can be carried out the filling of polyurethane foam 13 reliably in can guaranteeing.In addition, because interior case 11 does not directly contact with outer container 12, can not damage the outward appearance of heat insulating box 10A.In addition, by the centre of case 11 in the vacuum thermal insulator body is configured in and outer container 12, around polyurethane foam 13 constitutes, can not need the vacuum thermal insulator body to be fixed with bonding agent etc.

In addition, it is also passable the vacuum thermal insulator body that with bond material core material 121 is made the L font in advance to be configured in the bight of the end face of refrigerator 10 and side.In this case, can further improve the coverage rate of vacuum thermal insulator body on heat insulating box 10A.Be configured in the corner of heat insulating box 10A by the vacuum thermal insulator body that bending strength is high, can improve the intensity of heat insulating box 10A effectively.

In the present embodiment, though explanation is provided in the vacuum thermal insulator body 38,39,40,41 of each 27,28,29,30 inside of the front openings portion that is disposed at refrigerator 10 and each outside plate joins.But, as enforcement mode 1, vacuum thermal insulator body 38,39,40,41 being configured on each the interior case and the mid portion of outer container, filled with polyurethane foam foam 13 also can in spatial portion.In this case, because vacuum thermal insulator body 38,39,40,41 has high flatness, can guarantee the size in the space of filled with polyurethane foam foam 13 reliably, the filled polyurethane foam 13 reliably.Because outside plate and vacuum thermal insulator body 38,39,40,41 directly do not join, can suppress the distortion of each outer plate surfaces again.

(embodiment 18)

Figure 37 represents the freeze cycle loop diagram of the refrigerator of embodiments of the present invention 18.Structure in addition is identical with embodiment 1.Below utilize Figure 37 and Fig. 2 to describe.

The cooling medium delivery outlet 138A of compressor 138 joins by condenser 139 and inlet as the three-way diverter valve 140 of stream switching part.An outlet of reversal valve 140 by freezing capillary 141, is joined with the inlet of refrigerating chamber with evaporimeter (hereinafter referred to as evaporimeter) 136.The outlet of evaporimeter 136 is joined by the inlet of accumulator 142 with check valve 143.The cooling medium inflow entrance 138B of the outlet of check valve 143 and compressor 138 joins.Another outlet of reversal valve 140 by refrigeration capillary 144, is joined with the inlet of refrigerating chamber with evaporimeter (hereinafter referred to as evaporimeter) 134.The outlet of evaporimeter 134 is connected with the outlet of check valve 143.That is: with respect to compressor 138 evaporimeters 134 and evaporimeter 136 parallel connections, the outlet of evaporimeter 136 is joined with the outlet of evaporimeter 134 by check valve 143.

Summary and the effect thereof of below representing the effect of said structure.At first, under the state that compressor 138 drives, utilize reversal valve 140 to switch the cooling medium stream, make cooling medium flow into refrigerating chamber, that is, reach the state shown in Figure 37 dotted arrow 150 with evaporimeter 134 by compressor 138 outputs.Below this state is called the refrigeration pattern.Under the refrigeration pattern, from the cooling medium of compressor 138 outputs, after carrying out well-known state variation, send in the evaporimeter 134, make the cooling of evaporimeter 134 ambient airs.The evaporimeter 134 of Figure 37 is equivalent to the cooler 22 of Fig. 2.At this moment, utilize the air of evaporimeter 134 coolings, utilize refrigeration to deliver to refrigerating chamber 15 and vegetable compartment 16 with the air-supply effect of pressure fan 23, refrigerated compartment 15 and vegetable compartment 16.

In addition, under compressor 138 driving conditions, utilize reversal valve 140 to switch the cooling medium stream, make in the cooling medium inflow evaporator 136 of compressor 138 outputs.I.e. state shown in Figure 37 solid arrow 151.Below, claim that this state is a frozen mode.Under frozen mode, from the cooling medium of compressor 138 outputs, after carrying out well-known state variation, deliver to evaporimeter 136, cooling evaporimeter 136 ambient airs.The evaporimeter 136 of Figure 37 is equivalent to the cooler 24 of Fig. 2.At this moment, the air that is cooled off by evaporimeter 136 utilizes freezing air-supply effect with pressure fan 25, delivers to and switches chamber 17, ice-making compartment 18 and refrigerating chamber 19.

Can cool off refrigerated storage temperature carrying space that constitutes by refrigerating chamber 15 and vegetable compartment 16 and the cryogenic temperature carrying space that constitutes by switching chamber 17, ice-making compartment 18, refrigerating chamber 19 so respectively independently.Therefore, keep about-5 ℃ by evaporimeter 14, the chilling temperature that evaporimeter 16 is kept about-25 ℃ can provide the storehouse temperature that is applicable to cooling space respectively effectively.Like this, energy-saving effect improves.In addition, owing to cut apart cooling refrigeration temperature carrying space and cryogenic temperature carrying space independently, can further reduce the heat that to remove, so the heat dissipation capacity of condenser 139 reduces also in the time.As a result, the volume of the whole pipelines in freeze cycle loop also reduces to a certain extent.Like this, can suppress to use the fire hazard that to have flammable hydrocarbon be the nature cooling medium leaks as the cooling medium under the cooling medium situation.

All be cooled under the predefined state of temperature at refrigerated storage temperature carrying space and cryogenic temperature carrying space, when stopping compressor 18, under the refrigeration mode state, stop compressor 138.Under the refrigeration pattern, utilize the effect of reversal valve 140, the cooling medium delivery outlet 138A of compressor 138 and the inlet of evaporimeter 134 become connected state, and interdict between the inlet of cooling medium delivery outlet 138A and evaporimeter 136.When stopping compressor 138 in this state, the high-pressure side inflow evaporator 136 that the high temperature cooling medium is not represented from condenser 139.Utilize the effect cooling medium of check valve 143 can not flow backward to evaporimeter 136 again from evaporimeter 134.Therefore, the cooling medium of low temperature remains in the evaporimeter 136, and the temperature of the device 136 that can avoid evaporating unnecessarily raises.Like this, can more cut down the energy loss of freeze cycle, improve energy-saving effect.

In existing refrigerator, generally use R134a as cooling medium.On the other hand, same with embodiment 17 in the refrigerator of present embodiment, can use the natural cooling medium of R600a iso-butane as hydrocarbon system.

Adopt above structure, and only the heat insulation situation of refrigerator 10 and door 27,28,29,30,31 is compared, can reduce whole caloric receptivities of refrigerator greatly with hard polyurethane foams 13.As a result, the reduction of casing caloric receptivity can obtain energy-saving effect.In addition, utilize exchange system in parallel, under the situation of alternatively cooling refrigeration temperature carrying space and cryogenic temperature carrying space, can reduce to stop the temperature change size in time in the side storehouse.Promptly; Utilize exchange system in parallel, can improve cooling effectiveness, improve energy-saving effect, can improve the fresh-keeping property of food simultaneously.

In addition,, reduce the casing caloric receptivity, and only make the heat insulation situation of casing relatively, once the heat that should remove and reduce with heat dissipation capacity that it matches with hard polyurethane foams by using the vacuum thermal insulator body.Because like this, the pipeline volume reduces.In the existing heat insulating box that utilizes hard polyurethane foams, in order to prevent refrigerator surface frosting, with the heat radiation that constitutes the part of condenser 139 is that pipeline (not illustrating among the figure) is imbedded in the hard polyurethane foams, in the present embodiment, may use the vacuum thermal insulator body, the cooling system pipeline that can not need design on the part of frosting in order to prevent frosting.Therefore can integral body reduce the pipeline volume significantly.As a result, the cooling medium amount that cooling needs is cut down greatly, and when use had the natural cooling medium of flammable hydrocarbon system, even cooling medium leaks, the danger of catching fire was also extremely low.

Even compressor 138 is under the situation of rotating speed one fixed pattern (constant revolution type), also can obtain above-mentioned effect.The preferred compressor that uses rotating speed changeable type (variable revolution type) constitutes freeze cycle as compressor 138.When such formation, the difference of quiet heat absorption load when utilizing the rotating speed of compressor can control the casing that uses the vacuum thermal insulator body stablize and the maximal workload when door opens and closes or input food is loaded in the storehouse.Use the compressor of rotating speed one fixed pattern, must guarantee excessive inflator volume, consistent with maximal workload, and when stablize, stop the time increase of compressor, storehouse temperature changes greatly in time.On the other hand, use the compressor of the variable pattern of rotating speed, can reduce the loss of energy-saving effect, suppress storehouse temperature change in time.Because be that the inflator volume is little, can further reduce the cooling medium amount.Therefore, just in case leak to the cooling system outside, the danger of flammable cooling medium is also minimum as the cooling medium of the hydrocarbon of flammable cooling medium system.

The heat insulation design of Wall Thickness of the coverage rate of vacuum thermal insulator body and refrigerator is identical with other embodiments, omits its explanation.

Figure 38 represents the structure chart of vacuum thermal insulator body.Basic structure is identical with embodiment 10, and in Figure 38, core material 145 is made by inorfil aggregates 145 such as glass fine hair.Core material 145 is inserted in the outer covering piece of applying metal forming layer film 146A and evaporation layer film 146B, inside is vacuumized, sealed open portion forms the vacuum thermal insulator body like this.The material of core material 145 and film 146A, 146B is identical with embodiment 10 with thermal conducting rate etc., omits its explanation.

Adopt this structure, compare, can obtain the about 10 times vacuum thermal insulator body of heat-proof quality with hard polyurethane foams.Owing to like this, can improve the effect that the casing caloric receptivity when using the vacuum thermal insulator body reduces greatly.As a result, improve energy-saving effect greatly.Under the situation of using exchange system in parallel, can reduce the time dependent size of storehouse temperature, improve the fresh-keeping property of food.By further minimizing caloric receptivity, can suppress the cooling medium amount of necessity still less, even have flammable iso-butane when making cooling medium, the danger in the time of more can reducing cooling medium and leak.In addition, the inorfil aggregate that uses in core material 145 has flame retardancy, just in case refrigerator 10 catches fire, its security is than the height that only constitutes with hard polyurethane foams.

Figure 39 is the skeleton diagram of vacuum thermal insulator body.The thickness of vacuum thermal insulator body 149 is 15mm.That is: towards the heat heat insulation with making the face that forms by two limits 147,148 by the vertical direction of direction, configuration vacuum thermal insulator body.Preferably, the length on limit 147,148 is more than or equal to 200mm.Like this, can obtain following effect.

Because film 146A, the 146B of the gas shield of the outer covering piece of formation vacuum thermal insulator body have the metallicity thin layer, produce so-called heat bridge (heat bridging) phenomenon by conducting heat.Because like this, when the length on the limit 147,148 of the area coverage that constitutes the vacuum thermal insulator body too hour, can not get the original heat-proof quality of vacuum thermal insulator body, the effect of heat insulation of against vacuum heat insulator use amount reduces.On the other hand, by making limit 147,148 length, can bring into play the original heat-proof quality of vacuum thermal insulator body more than or equal to 200mm.That is: experimental verification can suppress the heat leak that caused by heat bridge.From as can be known above, the length on two limits in three limits that constitute the vacuum thermal insulator body except thickness direction can be brought into play the original heat-proof quality of vacuum thermal insulator body more than or equal to 200mm.As a result, under the high state of cost-performance, utilize the vacuum thermal insulator body, can reduce the caloric receptivity of refrigerator integral body effectively.As a result, can obtain the energy-saving effect of above-mentioned present embodiment, reduce that storehouse temperature changes size in time and the effect that improves food fresh keeping, reduce cooling medium and improve the effect of the danger when suppressing the nature cooling medium and leaking.

The thickness of vacuum thermal insulator body 149 is 15mm, if in the scope of the 5-20mm left and right sides, then can not hinder the foam filling of polyurethane foam 13, can bring into play suitable heat-proof quality.

In the present embodiment, except the formation and vacuum thermal insulator body size of freeze cycle, identical with embodiment 1.This structure is used in the structure of other embodiments and is also produced effect.

More than, embodiments of the present invention have been described, it is good to obtain outward appearance in all embodiments, the refrigerator that heat-proof quality is outstanding.In addition, the inherent structure of each embodiment can be implemented with other embodiment combinations, and it makes up also within the scope of the invention.

The possibility of utilizing on the industry

According to the present invention, between outer container and interior case, have in the refrigerator of foamed resin and vacuum thermal insulator body, utilize following any structure, can provide outward appearance good, effectively heat insulation refrigerator.

(1) make the center line average roughness (Ra) of outer container outer surface that face at outer container disposes the vacuum thermal insulator body more than 0.1 μ m, perhaps the glossiness of outer container outer surface is below 80.

(2) vacuum thermal insulator that will be configured on the door that constitutes the front is shown consideration on the inner panel that is attached to door.

(3) between vacuum thermal insulator body and outer container, configuration prevents that Jie of outer container outer surface distortion is at intermediate member.

(4) between vacuum thermal insulator body and outer container, dispose radiating tube, space and the external communications of using vacuum thermal insulator body and radiating tube to form simultaneously.

(5) make aperture on the outer container after the face that the vacuum thermal insulator body is configured in outer container.

(6) in the bottom Machine Room is arranged, make vacuum thermal insulator body and refrigerator two sides, top, end face, the back side, the front is relative and join with outer container and to set, with bottom surface, two sides, bottom, the face that constitutes the Machine Room joins relatively and with interior case and sets.

(7) the vacuum thermal insulator body is configured in the outer container inboard, this material is packed radiating tube in the face that joins with outer container.

Claims (40)

1, a kind of refrigerator is characterized by, and has:

Outer container;

Interior case; With

Described outer container and described in foamed resin and vacuum thermal insulator body between the case,

Described vacuum thermal insulator body and described outer container are joined set, making the described outer container outer surface that disposes described vacuum thermal insulator body is following any structure:

(A) center line average roughness (Ra) is more than or equal to 0.1 μ m,

(B) glossiness is smaller or equal to 80.

2, a kind of refrigerator is characterized by, and has:

Outer container;

Interior case;

Described outer container and described in foamed resin and vacuum thermal insulator body between the case; With

Constitute the front, have the door of inner panel,

The vacuum thermal insulator that is configured on the described door is shown consideration on the described inner panel of described door.

3, refrigerator as claimed in claim 2 is characterized by,

Be configured in the foremost portion of the described vacuum thermal insulator consideration of described door at the inner panel of described door.

4, a kind of refrigerator is characterized by, and has:

Outer container;

Interior case;

Described outer container and described in foamed resin and vacuum thermal insulator body between the case; With

Between described vacuum thermal insulator body and described outer container, prevent the middle insertion parts of described outer container outer surface distortion.

5, refrigerator as claimed in claim 4 is characterized by,

Insertion parts is bigger than described vacuum thermal insulator body in the middle of described.

6, refrigerator as claimed in claim 4 is characterized by,

Insertion parts is made of the soft parts softer than described vacuum thermal insulator body in the middle of described.

7, refrigerator as claimed in claim 6 is characterized by,

Described soft parts are foamed resin.

8, refrigerator as claimed in claim 6 is characterized by,

Described soft parts are independent foaming body.

9, refrigerator as claimed in claim 6 is characterized by,

The thickness of described soft parts is more than the flatness of described vacuum thermal insulator body, and below the thickness of described vacuum thermal insulator body.

10, refrigerator as claimed in claim 4 is characterized by,

Insertion parts is by making than the hard hard part of described vacuum thermal insulator body in the middle of described.

11, refrigerator as claimed in claim 4 is characterized by,

Insertion parts is by making than hard hard part of described vacuum thermal insulator body and the soft parts softer than described vacuum thermal insulator body in the middle of described.

12, refrigerator as claimed in claim 11 is characterized by,

Insertion parts is from described outer container side, by the arranged in order of described hard part, described soft parts in the middle of described.

13, a kind of refrigerator is characterized by, and has:

Outer container;

Interior case;

Described outer container and described in foamed resin and vacuum thermal insulator body between the case; With

Be configured in the radiating tube between described vacuum thermal insulator body and the described outer container,

The space part that forms by described vacuum thermal insulator body and described radiating tube and the external communications of described refrigerator.

14, refrigerator as claimed in claim 13 is characterized by,

The planar portions of the described vacuum thermal insulator body relative with described radiating tube is provided with groove.

15, refrigerator as claimed in claim 13 is characterized by,

Also have the fixed part of fixing described radiating tube, an end of described fixed part is positioned at described refrigerator outside, and simultaneously, the other end of described fixed part also is positioned at inside than the end of described vacuum thermal insulator body.

16, a kind of refrigerator is characterized by, and has:

Outer container;

Interior case; With

Described outer container and described in foamed resin and vacuum thermal insulator body between the case,

Described vacuum thermal insulator body is configured in the described outer container, makes aperture on the face of the described outer container that disposes described vacuum thermal insulator body.

17, a kind of refrigerator is characterized by, and has:

Outer container;

Interior case;

Described outer container and described in foamed resin and vacuum thermal insulator body between the case; With

Machine Room in the bottom,

Make described a plurality of vacuum thermal insulator body relative with two sides, top, end face, the back side and front and join with described outer container and to set, with bottom surface, two sides, bottom and constitute the face of described Machine Room relative and with described in case join and set.

18, refrigerator as claimed in claim 17 is characterized by,

With described in case join the described vacuum thermal insulator body that sets with described in whole of joining of case, and join with join each face of the described interior case that sets of described vacuum thermal insulator body.

19, refrigerator as claimed in claim 17 is characterized by,

Joining on the face of case in set described with described vacuum thermal insulator body, have and with described in the case step that the peripheral end face of the described vacuum thermal insulator body that sets joins that joins.

20, refrigerator as claimed in claim 17 is characterized by,

Also have cooler, form above below described cooler, having tilted shape, below the chamber be planar shaped and with described in the heat insulating member be close to of case.

21, refrigerator as claimed in claim 17 is characterized by,

Also have cooler, described in case have the tilted shape part that is positioned at described cooler below, have be filled in described tilted shape part and and described in the join heat insulating member in the gap between the vacuum thermal insulator body that sets of case.

22, refrigerator as claimed in claim 17 is characterized by,

Case has the depth face that the hole is used in the air discharge that is provided with described foamed resin in described.

23, refrigerator as claimed in claim 17 is characterized by,

Be configured to: on two sides, top of described refrigerator with the join position of lower end of the described vacuum thermal insulator body that sets of described outer container, than on two sides, bottom of described refrigerator with described in the join position of upper end of the described vacuum thermal insulator body that sets of case low.

24, refrigerator as claimed in claim 17 is characterized by,

Described vacuum thermal insulator body has first of being made of the metal evaporation film and second of being made of the film with metal forming, seals the sealing surface of described first and described second outer peripheral portion separately and described first face at grade.

25, refrigerator as claimed in claim 24 is characterized by,

Make described first to join and set with described outer container inboard.

26, refrigerator as claimed in claim 24 is characterized by,

Make described first with described in the case outside join and set.

27, refrigerator as claimed in claim 13 is characterized by,

Also have with described radiating tube be fixed on described outer container inboard, and configuration extend to the outer seal of refrigerator.

28, refrigerator as claimed in claim 27 is characterized by,

Described seal is for being cut apart and had any at least structure in hole.

29, refrigerator as claimed in claim 27 is characterized by,

Described radiating tube is avoided the end face of described refrigerator, is configured in described outer container inboard.

30, a kind of refrigerator is characterized by, and has:

Outer container;

Interior case; With

Described outer container and described in foamed resin and vacuum thermal insulator body between the case,

Also has the radiating tube that is assemblied in the described vacuum thermal insulator body that is configured in described outer container inboard.

31, as each the described refrigerator in the claim 1,2,4,13,16,17 and 30, it is characterized by,

Two faces of described vacuum thermal insulator body are made of the film with metal forming.

32, as each the described refrigerator in the claim 1,2,4,13,16,17 and 30, it is characterized by,

Described vacuum thermal insulator body has the diaphragm seal band, and described band is configured on the inflow direction direction in addition of described foamed resin.

33, as each the described refrigerator in the claim 1,2,4,13,16,17 and 30, it is characterized by,

Described vacuum thermal insulator body has:

Comprise and utilize bond material to make the core material of plate shaped inorfil aggregate; With

Cover the gas shield film of described core material.

34, as each the described refrigerator in the claim 1,2,4,13,16,17 and 30, it is characterized by,

Whole bonding agent with any face that joins that is coated on described vacuum thermal insulator body and described interior case and described outer container.

35, as each the described refrigerator in the claim 1,2,4,13,16,17 and 30, it is characterized by,

The blowing agent of described foamed resin comprises hydrocarbon.

36, as each the described refrigerator in the claim 1,2,4,13,16,17 and 30, it is characterized by, also have:

Refrigerating chamber in described in the case and refrigerating chamber at least any;

Cool off the cooler of any at least of described refrigerating chamber and described refrigerating chamber; With

The cooling medium that in described cooler, uses, constitute by hydrocarbon.

37, as each the described refrigerator in the claim 1,2,4,13,16,17 and 30, it is characterized by, also have:

Be used to cool off first evaporimeter of the refrigerating chamber in the described interior case;

Be connected in parallel with described first evaporimeter, be used to cool off second evaporimeter of the refrigerating chamber in the described interior case;

Stream is switched in described first evaporimeter and described second evaporimeter cooling medium stream switching part of any; With

Cooling medium is exported to the compressor of described cooling medium stream switching part.

38, refrigerator as claimed in claim 37 is characterized by,

Described compressor is a rotating speed type variable compressor.

39, as each the described refrigerator in the claim 1,2,4,13,16,17 and 30, it is characterized by,

Have the defrost water pipeline that is configured between described outer container and the described interior case,

Described defrost water pipeline and described in the described vacuum thermal insulator body of configuration between the case.

40, as each the described refrigerator in the claim 1,2,4,13,16,17 and 30, it is characterized by,

Described outer container and described in have between the case and hinder the foreign material that described foamed resin flows, described vacuum thermal insulator body is configured in the place of described foreign material.

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