CN101086318A - Vacuum heat-insulation material for refrigerator and heat-insulation structure - Google Patents
Vacuum heat-insulation material for refrigerator and heat-insulation structure Download PDFInfo
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- CN101086318A CN101086318A CN 200610014075 CN200610014075A CN101086318A CN 101086318 A CN101086318 A CN 101086318A CN 200610014075 CN200610014075 CN 200610014075 CN 200610014075 A CN200610014075 A CN 200610014075A CN 101086318 A CN101086318 A CN 101086318A
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Abstract
The invention discloses a refrigerator vacuum insulation material and its thermal insulation structure, it includes: core plate and sealing layer; said sealing layer includes: the outer layer film, protective layer, anti-ventilating layer and hot welding layer which are laminated sequentially; the partial surface of said sealing layer is formed with the partition layer composed by aluminium coating. The beneficial effects are: due to the sealing layer sealing the core plate is equipped with air impervious layer, and partial surface of the air impervious layer is formed with abruption layer; thereby, even the air impervious layer of sealing layer is bent and pinhole generates, the abruption layer formed on the sealing layer also can prevent the outer air or wet air penetrate in core plate effectively, thereby it increases the insulation performance of refrigerator vacuum insulation material and makes the materials maintain good insulation performance in long time. The abruption layer is very thin, so it does not influence the bend of the refrigerator vacuum insulation material, it is helpful for the installation of refrigerator vacuum insulation material in any locations in refrigerator shell.
Description
Technical field
The present invention relates to a kind of thermal-protective material, particularly relate to a kind of use in refrigerator vacuum heat insulation material and heat-insulating structure thereof.
Background technique
As everyone knows, refrigerator is a kind of device that is used for cryopreservation food, and as shown in Figure 1, existing common refrigerator generally comprises: housing 10 and refrigerating circulation system (not shown); Described housing 10 inside are formed with the storage space 20 of the cold storage room that is used for preserving food and refrigerating chamber etc.; Described cold storage room and refrigerating chamber are provided with refrigerating-chamber door (not shown) and refrigerating chamber door (not shown) respectively.
As shown in Figure 2, be filled with thermal-protective material 30 between the inwall of the inwall of described housing 10 and storage space 20, to have increased the heat insulation effect of housing 10.The formation method of described thermal-protective material 30 generally is, injects poly-imido fat foaming liquid when the assembling refrigerator between the inwall of the inwall of housing 10 and storage space 20, and heating forms poly-imido fat foaming to gather imido fat foam insulation then.But because the poly-imido fat foam insulation inside that this method forms comprises the air that can transmit heat in a large number, and the heat-shielding performance of poly-imido fat material itself neither be fine, and therefore, the heat-shielding performance of this thermal-protective material 30 is relatively poor.
In order to overcome the shortcoming of above-mentioned thermal-protective material 30, further improve the heat insulation effect of Refrigerator housing 10, develop a kind of composite heat-insulated material that is used for Refrigerator housing 10 in recent years.As shown in Figure 3, this composite heat-insulated material comprises: existing poly-imido fat foam insulation 30 and vacuum heat insulation material 40.
As shown in Figure 4, described vacuum heat insulation material 40 comprises: several layers central layer 41, sealing layer 42 and deaerator 43; The thin plate that described central layer 41 is made for fiber glass material is overrided to form, and is evacuated between each layer central layer 41; Described sealing layer 42 surrounds covering fully with central layer 41, so that keep the vacuum state between each layer central layer 41; Described deaerator 43 is used for absorbing a small amount of gas that flows into through sealing layer 42, makes vacuum heat insulation material 40 can keep excellent heat insulation property in a long time.
As shown in Figure 5, described sealing layer 42 comprises: the outer membrane 421 that stacks gradually, protective layer 422, permeation-proof gas-bearing formation 423 and hot welding layer 424; Described outer membrane 421 is made by the material of anti-external impact; Described permeation-proof gas-bearing formation 423 is for can prevent that extraneous gas or moisture from infiltrating through the aluminium film of central layer 41; Described hot welding layer 424 is made by the LLDPE material.
Described central layer 41 covers fully with sealing layer 42 under vacuum state, to cover then central layer 41 tops sealing layer 42b hot welding layer 424 and the sealing layer 42a that covers central layer 41 tops hot welding layer 424 mutual thermal fusion weldings together, thereby make central layer 41 complete and external isolation, and, cover after the hot welding layer 424 mutual thermal fusion weldings together of hot welding layer 424 and the sealing layer 42a that covers central layer 41 tops of sealing layer 42b at central layer 41 tops, two ends from central layer 41 extend out respectively, form extending portion 42a ', 42b ', extending portion 42a ', 42b ' is referred to as 42 '.
But, there is following shortcoming in above-mentioned vacuum heat insulation material 40: when vacuum heat insulation material 40 is installed, extending portion 42 ' the bending that vacuum heat insulation material 40 two ends need be extended to form, the bending extending portion 42 ' process in, can make the permeation-proof gas-bearing formation 423 that constitutes by the aluminium film produce pin hole, outside air will enter sealing layer 42 by these pin holes, thereby destroy the vacuum state of central layer 41, reduce the heat-shielding performance of vacuum heat insulation material 40.
Summary of the invention
Technical problem to be solved by this invention is, technical problem to be solved by this invention is, overcome the shortcoming of above-mentioned existing vacuum heat insulation material, even provide a kind of bending part of sealing layer to produce pin hole, also can keep the use in refrigerator vacuum heat insulation material and the heat-insulating structure of excellent heat insulation property for a long time.
Another object of the present invention is, even provide a kind of vacuum heat insulation material to produce pin hole, also can keep good effect of heat insulation for a long time, simultaneously the use in refrigerator vacuum heat insulation material and the heat-insulating structure thereof that can not exert an influence to the extending portion that bends vacuum heat insulation material.
Another object of the present invention is, provides a kind of installation procedure easy use in refrigerator heat-insulating structure.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: use in refrigerator vacuum heat insulation material of the present invention comprises: central layer and sealing layer; Described sealing layer comprises: stack gradually together outer membrane, protective layer, permeation-proof gas-bearing formation and hot welding layer; Be formed with the insulating course that aluminium coat constitutes on the part surface of described sealing layer.
The formation position of described insulating course is corresponding to the edge of central layer.
Described insulating course be formed on from the part surface of extending portion of the sealing layer that extends out of an end of central layer on.
Distance between the edge of described insulating course and the edge of extending portion is 5% to 20% of the width (W) of central layer or a length (L).
Described insulating course is the coat of metal.
The aluminium film of the described coat of metal for utilizing plasma film coating method (plasma coating), physical vapor deposition method (PVD (Physical Vapor Deposition)), electron-beam vapor deposition method (Electron beam evaporation) or sputtering method (sputtering) to form.
The thickness of described insulating course is 0.5 μ m-2 μ m.
Described insulating course can also be a coating of utilizing the insulating moulding coating coating to form.
Described insulating course can also be the sealing tape of pasting.
Use in refrigerator vacuum heat-insulation structure of the present invention comprises: the outer surface that utilizes the Refrigerator housing that steel make; Utilize the internal surface of the Refrigerator housing that plastic materials makes; And be arranged on the outer surface of Refrigerator housing and the vacuum heat insulation material between the internal surface.
The invention has the beneficial effects as follows: because the sealing layer that central layer is sealed has the gas barrier layer, and the insulating course that also is formed with on the part surface of gas barrier layer; Therefore, when even the permeation-proof gas-bearing formation of sealing layer produces pin hole owing to bending, the insulating course that is formed on the sealing layer can prevent effectively that also extraneous gas or moisture are penetrated in the central layer, thereby improved the heat-shielding performance of use in refrigerator vacuum heat insulation material greatly, and made its long-term excellent heat insulation property that keeps.
Because the insulating course that forms is as thin as a wafer, therefore can the bending of use in refrigerator vacuum heat insulation material not exerted an influence, help the use in refrigerator vacuum heat insulation material is installed in neatly any position of refrigerator casing.
Description of drawings
Fig. 1 is the structural representation of existing common refrigerator housing.
Fig. 2 is the Refrigerator housing that is provided with thermal-protective material shown in Figure 1 sectional structure schematic representation along the X-X line.
Fig. 3 is the sectional structure schematic representation of existing vacuum heat insulation material.
Fig. 4 is the perspective view of vacuum heat insulation material shown in Figure 3.
Fig. 5 is the laminated construction schematic representation of the sealing layer of vacuum heat insulation material shown in Figure 3.
Fig. 6 is the sectional view of " A " portion among Fig. 3.
Fig. 7 is the sectional structure schematic representation of vacuum heat insulation material of the present invention.
Fig. 8 is the planimetric map of vacuum heat insulation material shown in Figure 7.
Structural representation when Fig. 9 is in bending state for the extending portion of vacuum heat insulation material shown in Figure 7.
Figure 10 is the test data plotted curve of the thermal conductivity of existing vacuum heat insulation material and vacuum heat insulation material of the present invention.
Among the figure:
10: refrigerator casing 100: vacuum heat insulation material
110: central layer 120: sealing layer
120 ': extending portion 130: insulating course
99: pin hole W: the width of central layer
L: the length of central layer
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Fig. 7 is the sectional structure schematic representation of vacuum heat insulation material of the present invention.Fig. 8 is the planimetric map of vacuum heat insulation material shown in Figure 7.Structural representation when Fig. 9 is in bending state for the extending portion of vacuum heat insulation material shown in Figure 7.Figure 10 is the test data plotted curve of the thermal conductivity of existing vacuum heat insulation material and vacuum heat insulation material of the present invention.
Shown in Fig. 7-9, vacuum heat insulation material 100 of the present invention comprises: central layer 110, sealing layer 120 and deaerator (not shown); Described central layer 110 is by fiberglass braided stacked forming of several layers, and vacuum state is pumped in the space between described fiberglass braided; Described sealing layer 120 covers central layer 110 fully, to keep the vacuum state of central layer 110; Described deaerator inserts with stratiform structure and is arranged between the central layer 110, with removing the gas that flows into through sealing layer 120, makes vacuum heat insulation material keep excellent heat insulation property in long-time; In order to prevent the infiltration of gas and moisture, be formed with the insulating course 130 that aluminium coat constitutes on the part surface of described sealing layer 110.
Described central layer 110 is to be laminated by the good thin glass fiber pieces of fabric of several layers insulative properties, and vacuum state is pumped in the space between described fiberglass braided, can access very good effect of heat insulation.
Described sealing layer 120 comprises: stack gradually together outer membrane (not shown), protective layer (not shown), permeation-proof gas-bearing formation (not shown) and hot welding layer (not shown); Described outer membrane forms the outer surface of sealing layer 120, is made by nylon material, and its thickness is about 25 μ m; Described protective layer be positioned at outer membrane below, make by nylon material, its thickness is about 15 μ m; Described permeation-proof gas-bearing formation be positioned at protective layer below, the aluminium film stack that is about 7 μ m by thickness forms; Described hot welding layer be positioned at the permeation-proof gas-bearing formation below, and contact with central layer 110.
Though for the detailed structure of sealing layer 120 is shown, described outer membrane, protective layer, permeation-proof gas-bearing formation, hot welding layer correspond respectively to the label 421,422,423,424 among Fig. 6.
The effect of described outer membrane and protective layer is to prevent that vacuum heat insulation material 100 from damaging because of external impact in making and installation process; The effect of described permeation-proof gas-bearing formation is to prevent that extraneous gas or moisture are penetrated into the inside of central layer 110; The effect of described hot welding layer is after thermal fusion welding, the central layer 110 that is in the following vacuum state of 0.001tor to be isolated mutually with outside.
As shown in Figure 6, for existing vacuum heat insulation material, when covering the central layer 110 of rectangular shape fully with sealing layer 120, because the extending portion 120 that is positioned at central layer 110 edges of sealing layer 120 ' need be bent, can produce pin hole 99 on the permeation-proof gas-bearing formation of extending portion 120 ' constituted by aluminium film 423 on the bending part.
In order to overcome the shortcoming of above-mentioned existing vacuum heat insulation material, avoid producing pin hole on the permeation-proof gas-bearing formation of sealing layer 120, as shown in Figure 7, described insulating course 130 be formed on the sealing layer 120 that covers central layer 110 by on the surface around the bending part.
In addition, as shown in Figure 8, when covering the central layer 110 of rectangular shape with sealing layer 120, to cover at first respectively central layer 110 vertical two end part seal 120 thermal fusion weldings together, seal 120 thermal fusion weldings that one of will cover in the transverse ends portion of central layer 110 end then together, seal 120 for the other end in the transverse ends portion that covers central layer 110, after its thermal fusion welding together, its edge section d just is close to the side of central layer 110, be not the part that is bent, therefore need not to form insulating course 130.
Usually, the size of the described edge d that need not to form insulating course 130 should be greater than 1/2 of central layer 110 thickness, and for example, the described edge d that need not to form insulating course 130 is of a size of 2% to 5% of the width W of central layer 120 or length L.In addition, in order fully to encase the edge of central layer 110, the width of insulating course 130 (being D1-d and D2-d) should be respectively 5% to 20% of the width W of central layer 110 or length L.As the reference value, the width of insulating course 130 (being D1-d and D2-d) should be respectively 60mm-70mm.
After central layer 110 put into sealing layer 120,, under vacuum state, heat hot welding layer, central layer 110 sealed in order to make itself and external isolation, and form the extending portion 120 that prolongs from an end of vacuum heat insulation material 100 '.
As shown in Figure 9, when being installed to vacuum heat insulation material 100 in the refrigerator casing, extending portion 120 ' bent.Therefore, extending portion 120 ' the surface should be formed with insulating course 130; If vacuum heat insulation material 100 has specific purposes, then should extending portion 120 ' the surface of bending part form insulating course 130.
Described insulating course 130 is the aluminium films that utilize plasma film coating method (plasma coating), physical vapor deposition method (PVD (Physical Vapor Deposition)), electron-beam vapor deposition method (Electron beam evaporation) or sputtering method technological methodes such as (sputtering) bending part on sealing layer 120 to form.
When the bending part that Figure 10 shows the sealing layer 120 of use in refrigerator vacuum heat insulation material of the present invention utilizes evaporation to be formed with the thick aluminium film insulating course 130 of 1 μ m, the thermal conductivity experimental result of use in refrigerator vacuum heat insulation material 100 (at this moment, central layer 110 adopts glass fibre to make, and deaerator is not set).As shown in figure 10, even the thickness of insulating course 130 only is 1 μ m, the heat-shielding performance of vacuum heat insulation material 100 also can improve 20%-30%.Particularly use through long-time, use in refrigerator vacuum heat insulation material 100 of the present invention still can be kept higher heat-shielding performance.
Because the bending part of the sealing layer 120 of use in refrigerator vacuum heat insulation material of the present invention is formed with aluminium film insulating course 130, therefore,, can prevent that also gas or moisture are penetrated in the central layer 110 even on the permeation-proof gas-bearing formation of the bending part of sealing layer 120, produce pin hole.
But described insulating course 130 is not limited to the aluminium plated film, and it can utilize the good coating of heat-shielding performance with the coating that thin as far as possible thickness coating forms, and also can stick with glue the band stickup and form.
It is worthy of note; protection scope of the present invention is not limited to the embodiment and the disclosed content of accompanying drawing of specification; according to basic fundamental design of the present invention; those of ordinary skill in the art need not can associate some other embodiment through creative work, and protection scope of the present invention is as the criterion with the content of claims record.
Claims (10)
1. a use in refrigerator vacuum heat insulation material is characterized in that: comprising: central layer (110) and sealing layer (120); Described sealing layer (120) comprising: stack gradually together outer membrane, protective layer, permeation-proof gas-bearing formation and hot welding layer; Be formed with the insulating course (130) that aluminium coat constitutes on the part surface of described sealing layer (110).
2. use in refrigerator vacuum heat insulation material according to claim 1 is characterized in that: the formation position of described insulating course (130) is corresponding to the edge of central layer (110).
3. use in refrigerator vacuum heat insulation material according to claim 2 is characterized in that: described insulating course (130) be formed on from the part surface of extending portion (120 ') of the sealing layer (120) that extends out of an end of central layer (110) on.
4. use in refrigerator vacuum heat insulation material according to claim 2 is characterized in that: the distance between the edge of the edge of described insulating course (130) and extending portion (120 ') is 5% to 20% of the width (W) of central layer (110) or a length (L).
5. according to claim 1,2,3 or 4 described use in refrigerator vacuum heat insulation materials, it is characterized in that: described insulating course (130) is the coat of metal.
6. use in refrigerator vacuum heat insulation material according to claim 5 is characterized in that: the aluminium film of the described coat of metal for utilizing plasma film coating method (plasma coating), physical vapor deposition method (PVD (Physical Vapor Deposition)), electron-beam vapor deposition method (Electronbeam evaporation) or sputtering method (sputtering) to form.
7. use in refrigerator vacuum heat insulation material according to claim 5 is characterized in that: the thickness of described insulating course (130) is 0.5 μ m-2 μ m.
8. according to claim 1,2,3 or 4 described use in refrigerator vacuum heat insulation materials, it is characterized in that: described insulating course (130) can also be a coating of utilizing the insulating moulding coating coating to form.
9. according to claim 1,2,3 or 4 described use in refrigerator vacuum heat insulation materials, it is characterized in that: described insulating course (130) can also be the sealing tape of pasting.
10. use in refrigerator vacuum heat-insulation structure is characterized in that: comprising: the outer surface that utilizes the Refrigerator housing that steel make; Utilize the internal surface of the Refrigerator housing that plastic materials makes; And be arranged on the outer surface of Refrigerator housing and the vacuum heat insulation material between the internal surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610014075 CN101086318A (en) | 2006-06-06 | 2006-06-06 | Vacuum heat-insulation material for refrigerator and heat-insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610014075 CN101086318A (en) | 2006-06-06 | 2006-06-06 | Vacuum heat-insulation material for refrigerator and heat-insulation structure |
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| Publication Number | Publication Date |
|---|---|
| CN101086318A true CN101086318A (en) | 2007-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610014075 Pending CN101086318A (en) | 2006-06-06 | 2006-06-06 | Vacuum heat-insulation material for refrigerator and heat-insulation structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102797A (en) * | 2010-04-20 | 2011-06-22 | 福建赛特新材股份有限公司 | Vacuum insulation panel with groove on panel surface, and manufacturing method thereof |
| CN104975661A (en) * | 2015-07-08 | 2015-10-14 | 许浒 | Metal vacuum warming plate and manufacturing method for same |
| CN105155698A (en) * | 2015-07-08 | 2015-12-16 | 许浒 | Metal-gas heat-insulation plate and method for manufacturing same |
-
2006
- 2006-06-06 CN CN 200610014075 patent/CN101086318A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102797A (en) * | 2010-04-20 | 2011-06-22 | 福建赛特新材股份有限公司 | Vacuum insulation panel with groove on panel surface, and manufacturing method thereof |
| CN102102797B (en) * | 2010-04-20 | 2013-01-23 | 福建赛特新材股份有限公司 | Vacuum insulation panel with groove on panel surface, and manufacturing method thereof |
| CN104975661A (en) * | 2015-07-08 | 2015-10-14 | 许浒 | Metal vacuum warming plate and manufacturing method for same |
| CN105155698A (en) * | 2015-07-08 | 2015-12-16 | 许浒 | Metal-gas heat-insulation plate and method for manufacturing same |
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