CN1860326A - Vacuum thermal insulation material, thermal insulation apparatus using the material, and refrigerator-freezer - Google Patents
Vacuum thermal insulation material, thermal insulation apparatus using the material, and refrigerator-freezer Download PDFInfo
- Publication number
- CN1860326A CN1860326A CNA2005800010939A CN200580001093A CN1860326A CN 1860326 A CN1860326 A CN 1860326A CN A2005800010939 A CNA2005800010939 A CN A2005800010939A CN 200580001093 A CN200580001093 A CN 200580001093A CN 1860326 A CN1860326 A CN 1860326A
- Authority
- CN
- China
- Prior art keywords
- heat insulating
- vacuum heat
- insulating material
- slot part
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2201/00—Insulation
- F25D2201/10—Insulation with respect to heat
- F25D2201/14—Insulation with respect to heat using subatmospheric pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermal Insulation (AREA)
- Refrigerator Housings (AREA)
Abstract
At least one or more grooves are formed in a vacuum thermal insulation material, and the insulation material is bent at the grooves and not at surrounding fillet sections adjacent to the grooves. By this, stress in a laminated film occurring at groove end sections, which are boundaries between the grooves and the surrounding fillet sections, can be reduced. This enables the area of small cracks occurring in that portion of the laminated film which is in the groove end sections to be restricted to minimum. As a result, reduction in thermal insulation performance over time can be restricted even if the vacuum thermal insulation material is bent.
Description
Technical field
The present invention relates to vacuum heat insulating material, used insulation cold insulation machine, freezing-cooling storeroom of vacuum heat insulating material etc.
Background technique
Vacuum heat insulating material is because the inside of the film of the outer coated material of conduct is depressurized, and effect has atmospheric pressure on the coated material outside, so very stiff.Therefore, then easily film is caused damage, so in nearly all application examples, use all dull and stereotypedly as being shaped.Utilize the shape of application site, be divided into multi-disc and use.
Therefore, the spy opens the 2001-336691 communique and discloses in order to suppress to come from the heat leak of vacuum heat insulating material seam portion, vacuum heat insulating material is given the example of the method for bending property.This vacuum heat insulating material covers core with the air-tight membrane, reduced pressure in its inside, thus sealing.And, utilize compression forming, be formed with slot part more than at least one in the side face vertical with the thickness direction of vacuum heat insulating material.The laminated film that the plastic pellicle that laminated film that the air-tight membrane is formed by lamination metal paper tinsel and plastic pellicle and lamination have been implemented evaporation forms constitutes, and bending the laminated thin face that the plastic pellicle that makes lamination implement evaporation forms at above-mentioned slot part becomes outer surface.
But, because give bending to vacuum heat insulating material, thus bending be adjacent to slot part around the state of spine under, be formed with the slot part at least one or more, bend at slot part under the situation of vacuum heat insulating material, following problem is arranged.In the end of slot part is the border of slot part and spine on every side, in metal foil or implemented to produce on the plastic pellicle of evaporation small crackle, might cause the increase that gas is invaded from this part, As time goes on reduce so must improve heat-insulating property.
And then, if on the laminated film that lamination metal paper tinsel and plastic pellicle form, be formed with the darker slot part more than at least one, make this surface become internal surface in described slot part bending, then in the whole zone of slot part, on metal foil, produce small crackle, might cause the increase that gas is invaded from this part, As time goes on reduce so must improve heat-insulating property more.
Summary of the invention
The invention provides a kind of vacuum heat insulating material, on vacuum heat insulating material, be formed with the slot part that is used to bend vacuum heat insulating material, do not bend vacuum heat insulating material around spine in be adjacent to the spine of slot part end, bend at slot part.
With this, because can reduce in the slot part end the stress that to be slot part produce with the border of on every side spine, so the area of the small crackle of the metal foil that produces in the slot part end or the plastic pellicle of having implemented evaporation can be suppressed to be irreducible minimum to laminated film.
And, the invention provides a kind of vacuum heat insulating material, the enforcement of coated material outside the laminated thin face of evaporation be formed with slot part, the laminated thin face that the plastic pellicle that makes lamination implement evaporation in the slot part bending forms becomes internal surface.
Thus, in the part that acts on because of bending stress in film the biglyyest is the laminated film that kink has been implemented evaporation, because of evaporation the film of particle have ductility, so compare with the size that on lamination metal paper tinsel and laminated film that plastic pellicle forms, forms the crackle that on metal foil, produces under the situation of deep trouth portion and bending, can reduce the size of crackle.Consequently, can reduce the increase of gas to the intrusion of vacuum heat insulating material inside.
And then, the invention provides a kind of insulation cold insulation machine and refrigerator that has used above-mentioned vacuum heat insulating material.
Description of drawings
Fig. 1 is the sectional drawing of the vacuum heat insulating material of embodiments of the present invention one;
Fig. 2 is the major component sectional drawing of the vacuum heat insulating material of embodiments of the present invention one;
Fig. 3 is the plan view of the vacuum heat insulating material of embodiments of the present invention one;
Fig. 4 is the figure of the vacuum heat insulating material of expression embodiments of the present invention one;
Fig. 5 is the figure of the vacuum heat insulating material of expression embodiments of the present invention two;
Fig. 6 is the figure of the vacuum heat insulating material of expression embodiments of the present invention three;
Fig. 7 is the sectional drawing of the freezing-cooling storeroom of embodiments of the present invention eight;
Fig. 8 is the sectional drawing of the freezing-cooling storeroom of embodiments of the present invention nine;
Fig. 9 is the sectional drawing of the freezing-cooling storeroom of embodiments of the present invention ten.
Symbol description
1 vacuum heat insulating material
2 outer coated materials
3 cores
10,14,16 slot parts
12 spines
13 are adjacent to the spine of slot part
15, the core in the 17 slot parts outside
18a, 18b, 18c refrigerator main body
19a, 19b, 19c outer container
Case in 20a, 20b, the 20c
23a, 23b, 23c refrigerating chamber
Embodiment
The invention provides a kind of vacuum heat insulating material, have the core that the congeries by inorfil constitutes, thereby and in addition coated material cover described core and airtight to inner pressure relief; On described vacuum heat insulating material, be formed with the slot part that is used to bend described vacuum heat insulating material, do not bend described vacuum heat insulating material around spine in be adjacent to the spine of described slot part end, bend described vacuum heat insulating material at described slot part.Because can reduce in the slot part end the stress that to be slot part produce with the border of on every side spine, so the area of the small crackle of the metal foil that produces in the slot part end or the plastic pellicle of having implemented evaporation can be suppressed to be irreducible minimum to laminated film.And, even under the situation of bending vacuum heat insulating material, also can reduce heat-insulating property and As time goes on reduce.And, because application area becomes wide by giving bending property, so the aging less vacuum heat insulating material of heat-insulating property can be provided.In addition, spine of the present invention only is meant the carinate part that the outer coated material that generated by the peripheral part at vacuum heat insulating material constitutes.
And then the invention provides a kind of vacuum heat insulating material, the mode that is not contacted with slot part with the core outside the slot part when bending is set the slot part width, is the center bending with a slot part.Like this, just can make in the slot part end number of the crest line that to be slot part produce with the border of on every side spine is irreducible minimum.Consequently, because the area because of the small crackle that has the laminated film that the rapid stress of crest line produced on film can be suppressed to be irreducible minimum, As time goes on reduce so can reduce heat-insulating property.
And then the invention provides a kind of vacuum heat insulating material, the laminated film that the plastic pellicle that laminated film that outer coated material is formed by lamination metal paper tinsel and plastic pellicle and lamination have been implemented evaporation forms constitutes, outside described the enforcement of coated material be formed with slot part on the laminated thin face of evaporation, make the surface that is formed with slot part become internal surface in slot part bending.Like this, the part that in film, has acted on stress because of bending the biglyyest be kink enforcement the laminated film of evaporation, because of evaporation the film of particle have ductility, so compare with the size that on lamination metal paper tinsel and laminated film that plastic pellicle forms, forms the crackle that on metal foil, produces under the situation of darker slot part and bending, can reduce the size of crackle.Consequently, can reduce the increase of gas, As time goes on reduce thereby reduce heat-insulating property to the intrusion of vacuum heat insulating material inside.
And, the invention provides a kind of vacuum heat insulating material, the flexural strength of core is 0.02-0.05MPa.Like this, because the operability of the core can keep vacuum heat insulating material and make the time has reduced necessary flexural strength in addition and when the bending vacuum heat insulating material, thus can improve worker's operating efficiency, thus the staff cost when producing in batches can be cut down.In addition, the mensuration of flexural strength is carried out with the autograph AGS-H 5KN of Shimadzu Seisakusho Ltd.'s system, and the sample size of this moment is 120mm * 25mm.
And, the invention provides a kind of vacuum heat insulating material, in laminated film, include the layer of the film that constitutes by ethylene-vinyl alcohol copolymer (EVA).Like this, even when forming slot part or form slot part and when bending, thereby stress is in metal foil or under the situation of having implemented to crack on the plastic pellicle of evaporation, because in laminar structure, include the layer of the film that constitutes by the good EVA of tightness, so can As time goes on to reduce inhibition be irreducible minimum because of gas is invaded the heat-insulating property that causes.
And then the invention provides a kind of vacuum heat insulating material, the surface hardness of core is 40-80.Like this, because the operability of the core when keeping vacuum heat insulating material and making, and the surface hardness of vacuum heat insulating material is set at irreducible minimum, so can reduce the press pressure of utilizing when the pressure forming open form becomes slot part.Consequently, the damage that the fiber core because of vacuum heat insulating material inside can be stung internally the external bag that causes suppresses As time goes on to reduce thereby reduce heat-insulating property for irreducible minimum.
In addition, the invention provides the vacuum heat insulating material that described core does not contain tackiness agent.When forming slot part, when perhaps after forming slot part, bending, can not cause tackiness agent to produce gas by the pulverizing of core at slot part in that vacuum heat insulating material is implemented punch process.That is, owing to can be suppressed to inferior limit by the reduction possibility that gas produces the heat-insulating property that causes, so can improve heat-insulating property.
The invention provides a kind of vacuum heat insulating material again, the tensile strength of outer coated material is 70-220N.Like this, just controlled cost,, also can control the damage of external bag, As time goes on reduced thereby reduce heat-insulating property even in addition and utilize pressure forming to form slot part and bending.
And then the invention provides a kind of insulation cold insulation device, have outer container, interior case, and in the space that utilizes described outer container and interior case to form, dispose vacuum heat insulating material of the present invention.Consequently, use the multi-disc vacuum heat insulating material, can prevent the thermal loss that produces from its seam of having used 2 situation, thereby can improve the heat-insulating property of insulation cold insulation machine even also needn't as existing, avoid ground, bight in the part that has kink.
And then the invention provides a kind of refrigerator, be pasted with vacuum heat insulating material of the present invention at refrigerating chamber.Like this, in the more refrigerating chamber of bending part, needn't as existing, avoid bending part ground and use the multi-disc vacuum heat insulating material, can prevent significantly from the thermal loss of its seam generation, so can cut down the consumption electric power of refrigerator.And, even, spend redundantly under the situation of manufacture cost, because as long as make 1 vacuum heat insulating material, so can cut down manufacture cost as existing, making the multi-disc vacuum heat insulating material.
The invention provides a kind of refrigerator again, be pasted with vacuum heat insulating material of the present invention at interior case.Because can be after vacuum heat insulating material be applied processing, will be on tightness the tightness laminated thin face side that likened to the enforcement of the laminated film difference of metal foil evaporation to be attached at the interior case of low temperature side, so can suppress heat-insulating property As time goes on reduce, can prevent simultaneously from the thermal loss of existing seam generation, so can further cut down the consumption electric power of refrigerator.
Below, with reference to accompanying drawing embodiments of the present invention are described.In addition, the present invention is not limited to this mode of execution.And accompanying drawing is a schematic representation, is not the figure that correctly represents each position relation dimensionally.
(mode of execution one)
Use Fig. 1-Fig. 4 that embodiments of the present invention 1 are described.As shown in Figure 1, thus vacuum heat insulating material 1 be beyond coated material 2 cover cores 3 and to the airtight vacuum heat insulating material that forms of inner pressure relief.
As shown in Figure 2, outer coated material 2 is made of lamination metal paper tinsel and plastic pellicle laminated film that forms and the plastic pellicle of having implemented evaporation.The laminated film that lamination metal paper tinsel and plastic pellicle form constitutes from the outside by nylon film 4, nylon film 5, aluminum foil film 6, low-density polyethylene film 7.The plastic pellicle of having implemented evaporation constitutes from the outside by nylon film 4, PETG (PET) film 8 of having implemented evaporation, the PET film 9 of having implemented evaporation, low-density polyethylene film 7.2 laminated thin film three partss seal and the system pouch.
Then as shown in Figure 3, the vacuum heat insulating material 1 of thickness 11mm has slot part, slot part end 11, the spine up and down 12 of width 5mm, degree of depth 4.5mm and the spine 13 that is adjacent to slot part 10.And, only bending spine 12 up and down, the spine 13 that is adjacent to slot part 10 does not bend.And as shown in Figure 4, vacuum heat insulating material 1 is in the part 60 degree bendings of slot part 10.
With regard to the vacuum heat insulating material 1 that as above constitutes, below its action of explanation, effect.At first, can reduce in slot part end 11 the stress that to be slot part 10 produce with the border of on every side spine 13 to laminated film.Its result, because can be with 11 aluminum foil films that produce or the area of small crackle of having implemented the PET film of evaporation suppress to be irreducible minimum in the slot part end, even so under the situation of bending vacuum heat insulating material 1, also can reduce heat-insulating property and As time goes on reduce.And, because application area becomes wide by having given bending property, so aging few good vacuum heat insulating material 1 of heat-insulating property can be provided.
For example, if carry out 30 days accelerated tests as above-mentioned vacuum heat insulating material 1 with bending process in 100 ℃ ageing oven, then compare with the adiabatic material of the planar vacuum that does not apply bending process, the degeneration of thermal conductivity is 1.2 times.
On the other hand, if bending is adjacent to the spine 13 of slot part 10,, then increases, thereby the stress of laminated film is increased in the number of slot part 10 with the crest line of the border generation of the spine 13 that is adjacent to slot part 10 at slot part 10 bending vacuum heat insulating materials 1.Consequently, because 11 aluminium foils that produce or the area of small crackle of having implemented the PET film of evaporation increase in the slot part end, so then confirm as follows if carry out with above-mentioned same accelerated test: the degeneration of pyroconductivity is 1.5 times of the adiabatic material of planar vacuum.
In addition, as the inorfil that is used in core 3, preferred glass cotton, glass fibre, alumina fibre, silica aluminum fiber, silica fibre, rock wool, silicon carbide fiber etc.Be not defined in this especially.And, when being tabular,, also can use tackiness agent at the heating press molding for operability improves.
As the nylon of the outer coated material 2 of laminar structure, the good nylon films of various mechanical properties such as preferred impact resistance, resistance to bend(ing) or tensile strength.As its example, can enumerate nylon-6, nylon-66, MXD nylon etc.If use fragrant family nylon then can further improve tightness, so be particularly preferred.But, be not limited thereto.And, as the form of nylon film, the multilayer nylon film that can use individual layer nylon film, the nylon not of the same race of extrusion process simultaneously to form, but be not to be defined in this especially.
Except nylon film, also can utilize the extension processed goods of PET film, polypropylene (PP) film etc., if use the PET film then can improve the water vapour shielding.
The metal foil or the evaporation particle of the outer coated material 2 of laminar structure can use aluminium, stainless steel, iron etc., but are not limited thereto.
The hot melt coating of outer coated material 2 is to constitute gas permeation degree the best part in the film of outer coated material 2, and the character of hot melt coating influences bigger to the timeliness of the heat-insulating property of vacuum heat insulating material 1.If the heat leak that comes from the surface of considering the stability of the shutoff quality in the decompression shutoff operation or coming from inhibition that gas that hot melt applies end surface invades or cause because of the transmission of heat under the situation of using metal foil as the laminated film of having implemented evaporation, then the thickness of hot melt coating is preferably 25 μ m-60 μ m.
As the example of the material of hot melt coating, can use and not have the PP of extension film, density polyethylene film with high, straight chain shape low-density polyethylene film etc., but be not limited thereto.
And the example as the bag shape of outer coated material 2 has quad seals bag, square bag, tripartite sealing package, pillow formula bag, center adhesive paper sealing package etc., but is not limited thereto.
And, in order further to improve the initial heat-insulating property of vacuum heat insulating material 1 and the timeliness of heat-insulating property, also can the using gases sorbent or the air-breathing material of moisture adsorbent etc.Its adsorbing mechanism can be any one of physical absorption, chemisorption and absorption, sorption etc., but as non-evaporation type air-breathing and the effect material be good.Particularly, can enumerate the physical absorbent of synthetic zeolite, active carbon, activated alumina, silica gel, dawsonite, hydrotalcite etc.
As chemosorbent, can utilize the oxide of alkali metal or alkaline-earth metal or the hydroxide of alkali metal or alkaline-earth metal etc.Particularly, lithia, lithium hydroxide, calcium oxide, calcium hydroxide, magnesium oxide, magnesium hydroxide, barium oxide, barium hydroxide act on effectively.And calcium sulfate, magnesium sulfate, sodium sulfate, sodium carbonate, potassium carbonate, calcium chloride, lithium carbonate, unsaturation fatty acid, iron compound etc. are effect effectively also.
And, use the material of barium, magnesium, calcium, strontium, titanium, zirconium, vanadium etc. or the air-breathing material of application alloyage separately and more produce effect.
And then, remove nitrogen, oxygen, moisture, carbon dioxide in order to adsorb at least, also can allly mix ground and use so air-breathing material.
The manufacture method of vacuum heat insulating material 1 can at first be made outer coated material 2, thereafter core 3 is inserted in the outer coated material 2, thereby and is reduced pressure in inside airtight.Perhaps, core 3 and the outer coated material 2 that is made of roller shape or laminal laminated film also can be set in decompressing groove, make roller shape or laminal outer coated material 2 for after the state of core 3, apply outer coated material 2, make vacuum heat insulating material 1 by hot melt.Be not to be defined in this especially.
(mode of execution two)
Fig. 5 is the schematic representation of the vacuum heat insulating material of expression embodiments of the present invention two.
In Fig. 5, the vacuum heat insulating material of thickness 11mm is 60 degree bendings on the slot part 14 of width 12mm, degree of depth 4.5mm, and the core 15 in the slot part outside is not contacted with slot part 14.That is, do not interfere mutually.
With regard to the vacuum heat insulating material of above formation, below its action of explanation, effect.
At first, because make 1 slot part 14, be irreducible minimum so can make in the slot part end number of the crest line that to be slot part 14 produce with the border of on every side spine.Consequently, thereby because can suppress because of existing the rapid stress of crest line to suppress As time goes on to reduce so can suppress heat-insulating property for irreducible minimum in the area of the small crackle that will on the laminated film of having implemented evaporation, produce on the film.
And, because with when bending the slot part outside core 15 core that is adjacent to slot part 14 mode that is not contacted with slot part set the width of slot part 14, so can eliminate the unnecessary crest line that produces because of the core contact.Consequently, thereby because can suppress because of existing the rapid stress of crest line to suppress As time goes on to reduce so can suppress heat-insulating property for irreducible minimum in the area of the small crackle that will on the laminated film of having implemented evaporation, produce on the film.
Then, if above-mentioned vacuum heat insulating material with bending process is carried out 30 days accelerated tests in 100 ℃ ageing oven, then the degeneration of thermal conductivity does not just apply 1.1 times of planar vacuum thermal insulation material of bending process.On the other hand, if making the width of slot part 14 is 5mm,, then increase in the number of slot part 14 with the crest line of the border generation of the spine that is adjacent to slot part 14 at slot part bending vacuum heat insulating material.Consequently, because the stress of laminated film is increased, the area of the small crackle of the laminated film that produces in the slot part end increases, so compare with the adiabatic material of planar vacuum, confirm as follows: the degeneration of thermal conductivity is 1.2 times.
(mode of execution three)
Fig. 6 is the schematic representation of the vacuum heat insulating material of expression embodiments of the present invention three.
As shown in Figure 6, the vacuum heat insulating material of thickness 11mm is 90 degree bendings on the slot part 16 of width 12mm, degree of depth 6.5mm, and the core 17 in the slot part outside is not contacted with slot part 16.That is, do not interfere mutually.And slot part 16 is present in the laminated thin face side of having implemented evaporation, in this part of interior lateral buckling.
With regard to the vacuum heat insulating material of above formation, below its action of explanation, effect.
At first, the part that acts on because of bending stress in the film the biglyyest be kink enforcement the laminated film of evaporation.Because its film of particle that has been evaporation has ductility,, can reduce the size of crackle so compare with the size that on lamination metal paper tinsel and laminated film that plastic pellicle forms, forms the crackle that on metal foil, produces under the situation of darker slot part and bending.Consequently, can reduce the increase of gas, As time goes on reduce thereby can reduce thermoinsulation material to the intrusion of vacuum heat insulating material inside.If the vacuum heat insulating material of the degree of depth 6.5mm of above-mentioned slot part 16, bending angle 90 degree bending processes is carried out 30 days accelerated tests in 100 ℃ ageing oven, then with do not apply processing the adiabatic material of planar vacuum compare, the degeneration of pyroconductivity is 1.2 times.
On the other hand, same slot part 16 is formed in laminated thin face side that lamination metal paper tinsel and plastic pellicle form and as described below in the situation of interior lateral buckling slot part 16.Because the ductility of metal foil film is than evaporated film difference, so increase at the area of the small crackle that produces on the metal foil area than the small crackle that on evaporated film, produces, so compare with the adiabatic material of planar vacuum, confirm as follows: the degeneration of pyroconductivity is 1.3 times.
(mode of execution four)
The outer coated material structure of present embodiment do not use mode of execution one enforcement the PET8 of evaporation, and be to use the eva film of having implemented evaporation.
Present embodiment is as follows: have above-mentioned outside on the vacuum heat insulating material of coated material thickness of structure 11mm, the slot part of width 12mm, degree of depth 7.0mm is formed on the laminated thin face side of having implemented evaporation, in slot part 90 degree bendings.
With regard to the vacuum heat insulating material of above formation, below its action of explanation, effect.
At first, because in laminar structure, include the layer of the film that constitutes by the good EVA of tightness, so following effect is arranged.Promptly, even when forming slot part or form slot part and when bending, stress is on the laminated film of having implemented evaporation, become between the evaporation particle of evaporation face than under the usually big situation, also can As time goes on to reduce inhibition be irreducible minimum because of gas is invaded the heat-insulating property that causes.
If the vacuum heat insulating material of the degree of depth 7.0mm of above-mentioned slot part, bending angle 90 degree bending processes is carried out 30 days accelerated tests in 100 ℃ ageing oven, then with do not apply processing the adiabatic material of planar vacuum compare, the degeneration of pyroconductivity is 1.1 times.
(mode of execution five)
It is 40-80 that present embodiment makes the surface hardness of core.The operability of the core when keeping vacuum heat insulating material and making is set at irreducible minimum with the surface hardness of vacuum heat insulating material.Consequently, can reduce to utilize the press pressure when pressure forming forms slot part, the damage that will sting the external bag that causes because of the fiber core of vacuum heat insulating material inside internally suppresses to be irreducible minimum, thereby can reduce the aging of heat-insulating property.
Thereby, even 100 vacuum heat insulating materials are carried out the bending process of mode of execution three, also can in all vacuum heat insulating materials, initial pyroconductivity be maintained 25 * 10
-4Below the W/mK.
On the other hand, the vacuum heat insulating material making surface hardness 81-100, carry out having showed following result under the situation of the bending process shown in the mode of execution three: 2 initial pyroconductivity is 100 * 10 in 100 vacuum heat insulating materials
-4More than the W/mK.
And if make surface hardness little than 40, the core operability when then vacuum heat insulating material is made is poor, so the operating efficiency variation during the vacuum heat insulating material making.
In addition, surface hardness is a benchmark with JIS K6253, utilizes TECLOCK system テ Network ロ Star Network duro-meter (rubber plastic hardness tester) GS-721N type E to measure.
(mode of execution 6)
In the vacuum heat insulating material of present embodiment, the core adhesive-free does not promptly include tackiness agent.Because core does not include tackiness agent, so forming slot part by vacuum heat insulating material is pressurizeed or forming slot part on the vacuum heat insulating material and during in the slot part bending process, can suppress to pulverize the gas generation that causes because of core on slot part.That is, suppress for irreducible minimum, so can improve heat-insulating property because the gas that might cause heat-insulating property to reduce can be produced.
Thereby, even 10 vacuum heat insulating materials are carried out bending process shown in enforcement mode three, also can in all vacuum heat insulating materials, keep the initial pyroconductivity 25 * 10 before the processing
-4W/mK.
(mode of execution seven)
Present embodiment is that the tensile strength of outer coated material is the vacuum heat insulating material of 70-220N.Because making the tensile strength of outer coated material is more than the 70N,, As time goes on reduce thereby can reduce heat-insulating property so, also the damage of external bag can be suppressed be irreducible minimum even utilize pressure forming to form slot part and bending.And if tensile strength is 220N, then the core wall thickness when pressure becomes 0, also the damage of external bag can be suppressed for less even exert pressure.In addition, if having outer coated material that tensile strength surpasses 200N then cost uprise.
In addition, the power of the tensile strength autograph AGS-H 5KN that is to use Shimadzu Seisakusho Ltd.'s system when to come tension shape be fracture when the sample of 100mm * 15mm with 200mm/min.
(mode of execution eight)
Fig. 7 is the figure of expression as the sectional drawing of the freezing-cooling storeroom of an example of the insulation cold insulation machine of embodiments of the present invention eight.
As shown in Figure 7, refrigerator main body 18a disposes the dull and stereotyped vacuum heat insulating material 1b and the vacuum heat insulating material 1c of bending at the single face in the space that outer container 19a that is made of steel plate and the interior case 20a that is made of ABS resin constitute.And, with the space beyond the foam filled vacuum heat insulating material 1 of hard urethane foam 21a.And then, have cold storage room 22a, refrigerating chamber 23a, machine room 24a, compressor 25a.
With regard to the vacuum heat insulating material of above formation, below its action of explanation, effect.
At first, vacuum heat insulating material 1c is corresponding to the outer container inner wall shape, applies bending process in advance and uses.Thereby, even vacuum heat insulating material is used in bending, also As time goes on heat-insulating property can be reduced and suppress to be irreducible minimum.
And, in the present embodiment, because refrigerator is used 1 vacuum heat insulating material of bending on the position of the vacuum heat insulating material of using 2 flat boards originally, so can reduce the heat leak that comes from seam portion significantly.
And, in the present embodiment, reduce significantly because come from the heat leak in the refrigerator case of machine room 24a, can reduce the consumption electric power of refrigerator significantly, so can provide energy-conservation and the good refrigerator of cost performance.
And, in the present embodiment, be inorfil by the core that makes vacuum heat insulating material, core is exactly noncombustible, so consider it also is preferred from the aspect of refrigerator Security.
(mode of execution nine)
Fig. 8 is the sectional drawing of the freezing-cooling storeroom of embodiments of the present invention nine.
In Fig. 8, refrigerator main body 18b disposes the dull and stereotyped vacuum heat insulating material 1d and the vacuum heat insulating material 1e of bending at the single face in the space that outer container 19b that is made of steel plate and the interior case 20b that is made of ABS resin constitute, with the space beyond the foam filled vacuum heat insulating material 1 of hard urethane foam 21b.And then, have cold storage room 22b, refrigerating chamber 23b, machine room 24b, compressor 25b.
With regard to the vacuum heat insulating material of above formation, below its action of explanation, effect.
At first, vacuum heat insulating material 1e, applies bending process in advance and uses corresponding to the outer container inner wall shape in the part of the refrigerating chamber 23b of complicated shape.Thereby, even vacuum heat insulating material is used in bending, also As time goes on heat-insulating property can be reduced and suppress to be irreducible minimum.
And, in the present embodiment, because refrigerator is used 1 vacuum heat insulating material of bending on the position of the vacuum heat insulating material of using the multi-disc flat board originally, so can reduce the heat leak that comes from seam portion significantly.
And, because must make the multi-disc vacuum heat insulating material all the time, thus the activity duration expended, but in the present embodiment as long as make 1 vacuum heat insulating material of bending, so can cut down manufacture cost.
(mode of execution ten)
Fig. 9 is the sectional drawing of the freezing-cooling storeroom of present embodiment ten.
In Fig. 9, refrigerator main body 18c disposes the dull and stereotyped vacuum heat insulating material 1f and the vacuum heat insulating material 1g of bending at the single face in the space that outer container 19c that is made of steel plate and the interior case 20c that is made of ABS resin constitute, with the space beyond the foam filled vacuum heat insulating material 1 of hard urethane foam 21c.And then, have cold storage room 22c, refrigerating chamber 23c, machine room 24c, compressor 25c.
With regard to the vacuum heat insulating material of above formation, below its action of explanation, effect.
At first, vacuum heat insulating material 1g is corresponding to the interior box outer wall shape that protrusion of surface portion is arranged, and applies bending process in advance and uses.Thereby, even vacuum heat insulating material is used in bending, also As time goes on heat-insulating property can be reduced and suppress to be irreducible minimum.
And, in the present embodiment, refrigerator is because by having protrusion of surface portion originally, being difficult to use on the interior case outer surface of vacuum heat insulating material and will including the laminar structure face of the evaporated film that has ductility on the surface as attaching face, just can directly be attached at interior case and application bendingly, so can reduce heat leak significantly to refrigerator inside.
(industrial utilizability)
Even vacuum heat insulating material of the present invention uses bendingly, also can be with heat-insulating property along with the time Pass and reduce inhibition and be irreducible minimum. Consequently, it is wide that the range of application of vacuum heat insulating material becomes, not only Only be insulation cold insulation machine, freezing-cooling storeroom, also can be applied to hot water supply device, automatic vending machine, In vehicle, the dwelling house etc.
Claims (12)
1. vacuum heat insulating material has core that the congeries by inorfil constitutes, covers described core and outer coated material that inner pressure relief is airtight, slot part, and spine,
Utilize described slot part to bend described vacuum heat insulating material, and bending is arranged in the described spine of described spine except that the spine that is adjacent to described slot part end of the peripheral part of described vacuum heat insulating material.
2. vacuum heat insulating material as claimed in claim 1 is characterized in that, the described core that the width of described slot part is configured to the slot part outside when bending does not contact with described slot part, is the center bending with a described slot part.
3. vacuum heat insulating material as claimed in claim 1, it is characterized in that, the laminated film that the plastic pellicle that laminated film that described outer coated material is formed by lamination metal paper tinsel and plastic pellicle and lamination have been implemented evaporation forms constitutes, outside described the enforcement of coated material be formed with described slot part on the laminated thin face of evaporation, the mode that becomes internal surface according to the face that is formed with described slot part utilizes described slot part to bend.
4. vacuum heat insulating material as claimed in claim 3 is characterized in that, described laminated film comprises the layer of the film that is made of ethylene-vinyl alcohol copolymer.
5. as claim 1 or 2 described vacuum heat insulating materials, it is characterized in that the inorfil of described core is made of glass fibre.
6. vacuum heat insulating material as claimed in claim 5 is characterized in that the flexural strength of described core is 0.02-0.05MPa.
7. vacuum heat insulating material as claimed in claim 5 is characterized in that the surface hardness of described core is 40-80.
8. vacuum heat insulating material as claimed in claim 5 is characterized in that described core does not contain tackiness agent.
9. as claim 1 or 3 described vacuum heat insulating materials, it is characterized in that the tensile strength of described outer coated material is 70-220N.
10. insulation cold insulation machine has outer container, interior case and is disposed at by the vacuum heat insulating material in described outer container and the space that interior box-shaped becomes, and described vacuum heat insulating material use is as claim 1 or 3 described vacuum heat insulating materials.
11. freezing-cooling storeroom, have outer container, interior case, refrigerating chamber, cold storage room and be disposed at by the vacuum heat insulating material in described outer container and the space that interior box-shaped becomes, the described vacuum heat insulating material that is attached to described refrigerating chamber is as claim 1 or 3 described vacuum heat insulating materials.
12. freezing-cooling storeroom, have outer container, interior case, refrigerating chamber, cold storage room and be disposed at by the vacuum heat insulating material in described outer container and the space that interior box-shaped becomes, be attached to described in the described vacuum heat insulating material of case be as claim 1 or 3 described vacuum heat insulating materials.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP209494/2004 | 2004-07-16 | ||
JP2004209494A JP2006029456A (en) | 2004-07-16 | 2004-07-16 | Vacuum heat insulating material, heat insulation/cold insulation unit comprising the same, and refrigerator |
Publications (2)
Publication Number | Publication Date |
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CN1860326A true CN1860326A (en) | 2006-11-08 |
CN100529504C CN100529504C (en) | 2009-08-19 |
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CNB2005800010939A Expired - Fee Related CN100529504C (en) | 2004-07-16 | 2005-07-14 | Vacuum thermal insulation material, thermal insulation apparatus using the material, and refrigerator-freezer |
Country Status (5)
Country | Link |
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JP (1) | JP2006029456A (en) |
KR (1) | KR20060063982A (en) |
CN (1) | CN100529504C (en) |
DE (1) | DE112005000069B4 (en) |
WO (1) | WO2006009063A1 (en) |
Cited By (3)
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CN102455104A (en) * | 2010-10-28 | 2012-05-16 | Lg电子株式会社 | Refrigerator with vacuum space |
CN104565683A (en) * | 2015-02-04 | 2015-04-29 | 滁州银兴电气有限公司 | Double-layer hot-seal high-obstruction composite vacuum insulation board |
CN111810770A (en) * | 2019-04-10 | 2020-10-23 | 青岛海尔电冰箱有限公司 | Vacuum heat insulation plate, preparation method thereof and refrigerator using vacuum heat insulation plate |
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KR100729177B1 (en) * | 2006-06-14 | 2007-06-19 | 주식회사 폴리테크 | Adiabatic panel for vender |
DE102008040367A1 (en) * | 2008-07-11 | 2010-02-25 | Evonik Degussa Gmbh | Component for the production of vacuum insulation systems |
EP2500617A1 (en) | 2008-12-26 | 2012-09-19 | Mitsubishi Electric Corporation | Vacuum heat insulating material, heat insulating box using vacuum heat insulating material, refrigerator, refrigerating /air-conditioning apparatus, water heater, equipments, and manufacturing method of vacuum heat insulating material |
EP2489919A4 (en) | 2009-10-16 | 2014-01-29 | Mitsubishi Electric Corp | Device for manufacturing core of vacuum heat insulation member and method for manufacturing vacuum heat insulation member, as well as vacuum heat insulation member and refrigerator |
JP5312605B2 (en) | 2009-10-16 | 2013-10-09 | 三菱電機株式会社 | Vacuum insulation, refrigerator and equipment |
EP2472164A4 (en) | 2009-10-19 | 2014-01-29 | Mitsubishi Electric Corp | Vacuum heat insulating material, heat insulating box, refrigerator, freezing/air-conditioning device, hot-water supply device, apparatus, and method for manufacturing vacuum heat insulating material |
JP2013007462A (en) * | 2011-06-27 | 2013-01-10 | Sanden Corp | Vacuum heat insulator and bending process method of vacuum heat insulator |
JP2014070710A (en) * | 2012-10-01 | 2014-04-21 | Asahi Fiber Glass Co Ltd | Vacuum heat insulating material |
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- 2005-07-14 DE DE112005000069.9T patent/DE112005000069B4/en not_active Expired - Fee Related
- 2005-07-14 KR KR1020067006795A patent/KR20060063982A/en not_active Application Discontinuation
- 2005-07-14 WO PCT/JP2005/013028 patent/WO2006009063A1/en active Application Filing
- 2005-07-14 CN CNB2005800010939A patent/CN100529504C/en not_active Expired - Fee Related
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CN102455104A (en) * | 2010-10-28 | 2012-05-16 | Lg电子株式会社 | Refrigerator with vacuum space |
US8857931B2 (en) | 2010-10-28 | 2014-10-14 | Lg Electronics Inc. | Refrigerator with vacuum space |
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US10174989B2 (en) | 2010-10-28 | 2019-01-08 | Lg Electronics Inc. | Refrigerator with vacuum space |
US10591199B2 (en) | 2010-10-28 | 2020-03-17 | Lg Electronics Inc. | Refrigerator with vacuum space |
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US11732951B2 (en) | 2010-10-28 | 2023-08-22 | Lg Electronics Inc. | Refrigerator with vacuum space |
CN104565683A (en) * | 2015-02-04 | 2015-04-29 | 滁州银兴电气有限公司 | Double-layer hot-seal high-obstruction composite vacuum insulation board |
CN111810770A (en) * | 2019-04-10 | 2020-10-23 | 青岛海尔电冰箱有限公司 | Vacuum heat insulation plate, preparation method thereof and refrigerator using vacuum heat insulation plate |
CN111810770B (en) * | 2019-04-10 | 2022-09-20 | 青岛海尔电冰箱有限公司 | Vacuum heat insulation plate, preparation method thereof and refrigerator using vacuum heat insulation plate |
Also Published As
Publication number | Publication date |
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WO2006009063A1 (en) | 2006-01-26 |
DE112005000069T5 (en) | 2006-08-24 |
DE112005000069B4 (en) | 2018-11-22 |
JP2006029456A (en) | 2006-02-02 |
KR20060063982A (en) | 2006-06-12 |
CN100529504C (en) | 2009-08-19 |
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