CN102200214A - Vacuum insulated board and refrigerator - Google Patents
Vacuum insulated board and refrigerator Download PDFInfo
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- CN102200214A CN102200214A CN201110043349XA CN201110043349A CN102200214A CN 102200214 A CN102200214 A CN 102200214A CN 201110043349X A CN201110043349X A CN 201110043349XA CN 201110043349 A CN201110043349 A CN 201110043349A CN 102200214 A CN102200214 A CN 102200214A
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- hygroscopic agent
- vacuum heat
- insulating plate
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Abstract
The invention provides a vacuum insulated board and a refrigerator advantaged by thermal insulation and capability of fully performing moisture absorption of vapour in outsourcing materials in normal-temperature environment and high-temperature environment. The vacuum insulated board (11) is formed in such a way that core materials (13) with thermal insulation, a first moisture absorbent (14), and a second moisture absorbent (15) are received in the bag-shaped outsourcing materials (12), and the pressure of the bag-shaped outsourcing materials (12) is reduced. The first moisture absorbent (14) comprises magnesium oxide (14a) and anhydrous magnesium chloride (14b). The second moisture absorbent (15) comprises at least one party of magnesium oxide (15a) and silica gel (15b).
Description
Technical field
The refrigerator that the present invention relates to possess the vacuum heat-insulating plate of hygroscopic agent and this vacuum heat-insulating plate is installed.
Background technique
In recent years, the thermoinsulation material that is adopting thin and vacuum heat-insulating plate that adiabaticity is excellent to use as refrigerator etc.This kind vacuum heat-insulating plate for example shown in patent documentation 1, possesses core and outsourcing material.
Core is that glass wool etc. forms by the flocculence thing of thin glass fibre, and outsourcing material is waited by the bag of the composite membrane with aluminium foil etc. and forms.
This vacuum heat-insulating plate is to constitute like this, and core is housed in inside from the outsourcing material opening, makes decompression and sealing opening in the outsourcing material, will remain decompression state in the outsourcing material.
In addition, in the outsourcing material of this vacuum heat-insulating plate, contain hygroscopic agent (sorbent).This hygroscopic agent carries out moisture absorption to water vapour of sneaking into and the water vapour that sees through outsourcing material etc. in the manufacturing process of vacuum heat-insulating plate, make can not uprise owing to sneaking into of water vapour causes the thermal conductivity of vacuum heat-insulating plate.
As hygroscopic agent, for example use calcium oxide, magnesium chloride etc.
Patent documentation 1: TOHKEMY 2007-139184 communique
The hygroscopic agent that constitutes by calcium oxide for example, in normal temperature environment (for example 10～50 ℃, particularly 10～30 ℃) and surpass in 50 ℃ the hot environment (for example being equipped with in the environment in the shipping container between delivery period of refrigerator of the vacuum insulation agent plate that comprises this hygroscopic agent) and also can carry out moisture absorption, but the hygroscopic capacity of the moisture of per unit volume (water vapour) is lacked than the hygroscopic agent that is made of magnesium chloride.
Therefore, for the water vapour in the outsourcing material is carried out moisture absorption, need in outsourcing material, accommodate and measure more hygroscopic agent when using the hygroscopic agent that constitutes by magnesium chloride.Yet, if in outsourcing material, accommodate a large amount of hygroscopic agents, can show the characteristic of the thermal conductivity of calcium oxide, cause the thermal conductivity of vacuum heat-insulating plate to uprise.
In addition, the hygroscopic agent that constitutes by magnesium chloride, the hygroscopic capacity of the moisture of per unit volume (water vapour) is more than the hygroscopic agent that is made of calcium oxide in normal temperature environment, but in surpassing 50 ℃ hot environment (in the environment in the shipping container between the above-mentioned delivery period), then has the characteristic that hygroscopic agent carries out moisture (water vapour) discharge of moisture absorption.
Therefore, in hot environment, can not use the hygroscopic agent that constitutes by magnesium chloride.
Summary of the invention
The present invention In view of the foregoing finishes, and its purpose is to provide a kind of adiabaticity that has, and all can absorb the vacuum heat-insulating plate and the refrigerator that vacuum heat-insulating plate is installed of the water vapour in the outsourcing material in normal temperature environment and in the hot environment fully.
To achieve these goals, vacuum heat-insulating plate of the present invention is characterized in that, comprising: outsourcing material, be a bag shape, and inside is depressurized; Core is housed in the above-mentioned outsourcing material, has adiabaticity; First hygroscopic agent is housed in the above-mentioned outsourcing material, contains magnesium oxide and anhydrous magnesium chloride; And second hygroscopic agent is housed in the above-mentioned outsourcing material, contains at least one side in calcium oxide and the silica gel.
The invention effect
According to the present invention, in the outsourcing material of vacuum heat-insulating plate, contain first hygroscopic agent and second hygroscopic agent, therefore the water vapour in the outsourcing material can be carried out moisture absorption with first hygroscopic agent and second hygroscopic agent.
Herein, first hygroscopic agent is made of hygroscopic capacity many moisture absorption magnesium oxide and anhydrous magnesium chloride, therefore can utilize first hygroscopic agent that a large amount of water vapour is carried out moisture absorption in normal temperature environment.
Further, second hygroscopic agent contains also can carry out the calcium oxide of moisture absorption and in the silica gel at least one in hot environment.Thus, in hot environment, can carry out moisture absorption to the moisture (water vapour) of discharging by enough second hygroscopic agents from first hygroscopic agent.
Therefore, in normal temperature environment He in the hot environment, can carry out moisture absorption to the water vapour in the outsourcing material fully.Thus, can provide adiabaticity high refrigerator.
Description of drawings
Fig. 1 is the sectional view of the vacuum heat-insulating plate of expression first mode of execution of the present invention.
Fig. 2 is a stereogram of representing refrigerator main body except that door.
Fig. 3 is the front view that amplifies the cross section of the sidewall of representing body of thermal insulating box.
Fig. 4 is the sectional view along the A-A line of Fig. 1.
Fig. 5 is result's the figure of the endurance test of expression hygroscopic agent.
Fig. 6 is result's the figure of the test of the expression relation that is used to confirm temperature and hygroscopic capacity.
Fig. 7 is the figure suitable with Fig. 4 of expression second mode of execution of the present invention.
Fig. 8 is the figure suitable with Fig. 1 of expression the 3rd mode of execution of the present invention.
Fig. 9 is the figure suitable with Fig. 1 of expression the 4th mode of execution of the present invention.
Figure 10 is the sectional view along the B-B line of Fig. 9.
Figure 11 is the figure suitable with Fig. 1 of expression the 5th mode of execution of the present invention.
Figure 12 is the sectional view along the C-C line of Figure 11.
Figure 13 is the figure suitable with Fig. 1 of expression the 6th mode of execution of the present invention.
Description of reference numerals
In the accompanying drawing, the 11,31,41,51,61, the 71st, vacuum heat-insulating plate, the 12nd, outsourcing material, 13, the 72nd, core, 13a are duplexers, and 14 is first hygroscopic agents, 14a is a magnesium oxide, 14b is an anhydrous magnesium chloride, and 15 is second hygroscopic agents, and 15a is a calcium oxide, 15b is a silica gel, 52 is first accommodation bags, and 53 is second accommodation bags, the 62nd, mix accommodation bag.
Embodiment
Below, with reference to Fig. 1～Fig. 6 first mode of execution of the present invention is described.
At first, refrigerator main body 1 shown in Figure 2 constitutes, and in the body of thermal insulating box 2 of the lengthwise rectangular box shape that is the front surface opening refrigeration cycle (not shown) etc. is installed.
In addition, omit detailed explanation, but (and about partly being) separates about the quilt of the inside of body of thermal insulating box 2, is provided with a plurality of storerooms 3 such as cold storage room, vegetable compartment, refrigerating chamber.In the front surface portion of each storeroom 3, be provided with the insulated door of hinge open and close type or the insulated door of drawing and pulling type.
Body of thermal insulating box 2 have steel plate system outer container 4, be housed in case 5 in inside plastic of this outer container 4 and be arranged on outer container 4 and interior case 5 between vacuum heat-insulating plate 11.
In addition, as shown in Figure 3, the position that body of thermal insulating box 2 exists between outer container 4 and the interior case 5, beyond vacuum heat-insulating plate 11 produces the situation in gap 6.In this gap 6, the heat dissipating pipe (not shown) of the part of the condenser that be provided with the foam-thermal insulation (not shown) that constitutes by polyurethane foam etc. as required, constitutes refrigeration cycle.
Vacuum heat-insulating plate 11 is attached to the internal surface of outer container 4, forms tabular.This vacuum heat-insulating plate 11 has outsourcing material 12, core 13, first hygroscopic agent 14 and second hygroscopic agent 15 as Fig. 1, Fig. 3, shown in Figure 4.
As shown in Figure 3, outsourcing material 12 constitutes and makes two-layer laminate film (first cascade film 16, second stacked film 17) part bonding (hot melt applies) around.First cascade film 16 is positioned at outer container 4 one sides, and second stacked film 17 is positioned at case 5 one sides.
Second stacked film 17 adopt from the outside (interior case 5 one sides) to the inside (core 13 1 sides) have the three-layer structure of sealer 17a, gas barrier layer 17b and hot melt coating 17c successively.
At this moment, at the peripheral edge portion of vacuum heat-insulating plate 11, be provided with the lip portions 18 of bonding usefulness in mode outstanding around core 13.Lip portions 18 inside case 5 one sides (left side among Fig. 3) are folding, are fixed on binder or adhesion zone etc. on the face of second stacked film 17.
As shown in Figure 1, core 13 for example is made of a plurality of (in the present embodiment being two) duplexer 13a, and this duplexer 13a is formed by the inorfil of adiabaticity excellences such as glass wool.Two laminate 13a are identical shaped, are for example tetragonal planar of polygonal.This two laminate 13a is housed in the outsourcing material 12 with stacked state.
As shown in Figure 3, first hygroscopic agent 14 contains magnesium oxide 14a and anhydrous magnesium chloride 14b, more preferably is made of the magnesium oxide 14a of 50 quality % and the anhydrous magnesium chloride 14b of 50 quality %.
Can describe in detail below, magnesium oxide 14a and anhydrous magnesium chloride 14b are the materials that the hygroscopic capacity of water vapour is Duoed than calcium oxide or silica gel in 10～30 ℃ normal temperature environment.
In addition, preferably this magnesium oxide 14a and anhydrous magnesium chloride 14b are evenly mixed equally.This first hygroscopic agent 14 is housed in nonwovens etc. to have in the first gas permeability bag 21 of gas permeability.
A plurality of first gas permeability bags 21 that contain magnesium oxide 14a and anhydrous magnesium chloride 14b evenly are configured between the duplexer 13a of core 13 dispersedly.
Thus, as shown in Figure 1 and Figure 4, first hygroscopic agent 14 evenly is configured in the outsourcing material 12 dispersedly.And in the first gas permeability bag 21, every bag all contains for example first hygroscopic agent 14 of 5～20g, and more preferably every bag contains 5～10g.
Second hygroscopic agent 15 contains at least one side among calcium oxide 15a and the silica gel 15b.Calcium oxide 15a and silica gel 15b are in 10～70 ℃ environment the material that temperature influence ground hardly carries out moisture absorption.
Second hygroscopic agent 15 is housed in the second gas permeability bag 22.This second gas permeability bag 22 is identical with the first above-mentioned gas permeability bag 21, is the bag with gas permeability that is formed by nonwovens etc.
Contain the second gas permeability bag 22 of at least one side among calcium oxide 15a and the silica gel 15b, between the duplexer 13a of core 13, dispose a plurality of.
Particularly, the second gas permeability bag 22 disposes in the mode of surrounding the first gas permeability bag 21 between the duplexer 13a of core 13 as shown in figures 1 and 3.
In the first embodiment, the second gas permeability bag 22 is a center configuration on 4 directions around it with the first gas permeability bag 21.Thus, the second gas permeability bag 22 also evenly is disposed at core 13 dispersedly.
In the second gas permeability bag 22, every bag contains for example second hygroscopic agent 15 of 5～20g, more preferably every bag of second hygroscopic agent 15 that contains 5～10g.
In addition, the total amount of first hygroscopic agent 14 in the vacuum heat-insulating plate 11 and the total amount of second hygroscopic agent 15 are arbitrarily, but be difficult for becoming under the situation of hot environment at the environment that is provided with vacuum heat-insulating plate 11, also can make the total amount of first hygroscopic agent 14 more than the total amount of second hygroscopic agent 15.
Vacuum heat-insulating plate 11 obtains in the following way: accommodate in outsourcing material 12 after core 13 (2 duplexer 13a), first hygroscopic agent 14 and second hygroscopic agent 15, with decompression in the outsourcing material 12, keep decompression state and seal by the opening portion that hot melt applies outsourcing material 12 unchangeably, and airtight outsourcing material 12.In addition, inwardly case 5 one sides (left side among Fig. 3) are folding as mentioned above for lip portions 18, are fixed on binder or adhesion zone etc. on the face of second stacked film 17.
Then, effect and the effect to present embodiment describes.
In the outsourcing material 12 of vacuum heat-insulating plate 11, contain first hygroscopic agent 14 and second hygroscopic agent 15.Therefore, in the manufacturing process of vacuum heat-insulating plate 11, sneak into the water vapour in the outsourcing material 12 or after the manufacturing of vacuum heat-insulating plate 11, see through the water vapour of outsourcing material 12, carry out moisture absorption by first hygroscopic agent 14 and second hygroscopic agents 15 that are arranged in the outsourcing material 12.
Thus, can make the thermal conductivity of vacuum heat-insulating plate 11 can not improve.
Herein, first hygroscopic agent 14 contains magnesium oxide 14a and anhydrous magnesium chloride 14b.Therefore, in normal temperature environment for example under 10～30 ℃, first hygroscopic agent 14 is compared with the hygroscopic agent of the homogenous quantities that for example only is made of calcium oxide, can absorb more water vapour.
Therefore, can absorb the water vapour in the outsourcing material 12 for a long time, the moisture absorption excellent in te pins of durability of vacuum heat-insulating plate 11.
And then second hygroscopic agent 15 contains at least one side among calcium oxide 15a and the silica gel 15b.Therefore, in hot environment, for example in the environment in the shipping container during carrying under 50～70 ℃, can carry out moisture absorption to the moisture (water vapour) of discharging from first hygroscopic agent 14.
Therefore, in normal temperature environment and in the hot environment for example under 10～70 ℃, can fully carry out moisture absorption, and can further improve the durability of the moisture absorption of vacuum heat-insulating plate 11 for a long time to carrying out moisture absorption in the outsourcing material 12 to the water vapour in the outsourcing material 12.
For the hygroscopic effect of the vacuum heat-insulating plate 11 of confirming present embodiment, carry out Fig. 5 and hygroscopic test shown in Figure 6.
Fig. 5 and embodiment's sample (test portion) shown in Figure 6 are that first hygroscopic agent 14 (the magnesium oxide 14a of 5g and the anhydrous magnesium chloride 14b of 5g) of 10g and second hygroscopic agent 15 (being the magnesium oxide 15a of 10g in this test) of 10g are evenly mixed.
In addition, calcium oxide (CaO), the silica gel of sample (test portion) use are respectively 20g as a comparative example.And,, also magnesium oxide (MgO) 20g is tested for reference.
At first, confirm each test portion (embodiment's sample, each comparative sample) is being placed on the general test of the durability of each test portion of moisture absorption ratio of each test portion when indoor.
The result that each test portion places the moisture absorption ratio of indoor time (fate) and this moment has been shown among Fig. 5.In this test, embodiment's sample and each comparative sample are placed on general indoor (not adjusting the room (in the normal temperature environment) of room temperature and humidity), obtain the moisture absorption ratio.
The moisture absorption ratio be with the quality of the hygroscopic capacity of institute's moisture absorption in the stipulated time hygroscopic agent before divided by test and value (representing) with percentaeg.The hygroscopic capacity (g) of institute's moisture absorption in stipulated time, be " from the quality (quality that comprise the hygroscopic agent of moisture) of on-test through the hygroscopic agent of (Fig. 4; from 5 days on-tests, from 30 days on-tests) after the stipulated time " to be deducted " quality (g) of the hygroscopic agent before the test " obtain.
For example, when the quality of hygroscopic agent before the test is 20g, when the quality of hygroscopic agent after on-test is 26g, hygroscopic capacity=26 (g)-20 (g)=6 (g), the moisture absorption ratio is 6 (g) ÷, 20 (g) * 100 (%)=30 (%).
According to as can be known shown in Figure 5: in normal temperature environment, embodiment's sample and the hygroscopic agent that is made of calcium oxide, the hygroscopic agent that is made of silica gel are compared, and the hygroscopic capacity excellence promptly can be carried out moisture absorption and excellent in te pins of durability for a long time.
Then, confirm the test of the hygroscopic capacity of each test portion (embodiment's sample, each comparative sample) under each temperature.Illustrated among Fig. 6 each test portion in the hygroscopic capacity of the indoor placement that is retained as set point of temperature during the stipulated time.
Hygroscopic capacity is tried to achieve by deducting " quality of the hygroscopic agent before on-test " from " quality of the hygroscopic agent after the test ".Among Fig. 6, the hygroscopic capacity that the hygroscopic agent that the calcium oxide by 20g is constituted carries out moisture absorption is 20, uses the hygroscopic capacity of representing other test portions with the ratio of the hygroscopic agent that is made of calcium oxide.
For example as shown in Figure 6, embodiment's sample is being placed under 10 ℃ the indoor situation, the hygroscopic capacity of embodiment's sample is the twice of the hygroscopic capacity of the hygroscopic agent that is made of calcium oxide.In addition, be placed at the hygroscopic agent that will be made of magnesium oxide under 70 ℃ the indoor situation, the hygroscopic capacity of this hygroscopic agent is-20 with respect to the hygroscopic agent that is made of calcium oxide.
That is, the hygroscopic agent that is made of magnesium oxide when ambient temperature is 70 ℃, is discharged to the outside and to be equivalent to the hygroscopic agent that is made of the calcium oxide moisture in the amount of 70 ℃ of time institute's moisture absorptions.
As shown in Figure 6, when being benchmark with the hygroscopic agent that is made of calcium oxide, embodiment's sample is (10～30 ℃) in normal temperature environment, and hygroscopic capacity is more than the hygroscopic agent that is made of calcium oxide.In addition, embodiment's sample (50～70 ℃) hygroscopic capacity in hot environment is non-negative, does not promptly discharge the moisture (water vapour) of institute's moisture absorption.
Thus, to be housed in the exterior material 12 and the vacuum heat-insulating plate 11 that constitutes by first hygroscopic agent 14 that constitutes with embodiment's sample identical component and second hygroscopic agent 15, in normal temperature environment and in the hot environment, can fully carry out moisture absorption to the water vapour in the outsourcing material 12.
In the present embodiment,,, also can carry out moisture absorption reliably by second hygroscopic agent 15 even in hot environment, discharge moisture from first hygroscopic agent 14 owing to around first hygroscopic agent 14, dispose second hygroscopic agent 15.
Thus, even in hot environment, use vacuum heat-insulating plate 11, also can suppress thermal conductivity raising because of the vacuum heat-insulating plate 11 that causes from first hygroscopic agent, 14 discharge moisture.Therefore, if this vacuum heat-insulating plate 11 is installed (Group み Write む) in refrigerator, then can provide adiabaticity high refrigerator.
In addition, because first hygroscopic agent 14 and second hygroscopic agent 15 evenly are configured in the outsourcing material 12 dispersedly, so can reduce the deviation of thermal conductivity.
And, owing to be to be evenly dispersed in first hygroscopic agent 14 and second hygroscopic agent 15 between the duplexer 13a of core 13 and to be housed in the outsourcing material 12, make decompression in the outsourcing material 12 and obtain the structure of vacuum heat-insulating plate 11, so the duplexer 13a of post-decompression core 13 is easy to dispose abreast each other.
Thus, can access for example tabular vacuum heat-insulating plate attractive in appearance 11 of quadrilateral.
And then, because first hygroscopic agent 14 and second hygroscopic agent 15 are configured between the duplexer 13a of core 13, so first hygroscopic agent 14 and second hygroscopic agent 15 are not positioned at the surface side of vacuum heat-insulating plate 11.Thus, can make the surface of vacuum heat-insulating plate 11 become smooth, can be more attractive in appearance.
(second embodiment)
Fig. 7 shows the vacuum heat-insulating plate 31 of second mode of execution of the present invention.In addition, the identical reference character of part mark to identical with above-mentioned first mode of execution omits its detailed description.
In second mode of execution, as shown in Figure 7, contain the first gas permeability bag 21 and the configuration that contains the second gas permeability bag 22 of second hygroscopic agent 15 of first hygroscopic agent 14, different with above-mentioned first mode of execution.
Promptly, in the vacuum heat-insulating plate 31 of second mode of execution, the first gas permeability bag 21 that contains first hygroscopic agent 14 is configured in the bight of core 13 (duplexer 13a), and it is on 4 directions at center that the second gas permeability bag 22 that contains second hygroscopic agent 15 is configured in the first gas permeability bag 21.
In addition, if core 13 is pentagonal planar, then this first gas permeability bag 21 is configured in 5 bights, if core 13 is hexagonal planar, then this first gas permeability bag 21 is configured in 6 bights.
Herein, during the operation of the decompression in carrying out outsourcing material 12, outsourcing material 12 deforms according to the shape of core 13.At this moment, outsourcing material 12, position in the bight of core 13 is pulled, in the 3 layers of structure attenuation of the above-mentioned bight of the first cascade film 16 and second stacked film 17, meanwhile, exist gas barrier layer 16b, 17b (metal evaporation thing, metal foil) to crack (crack) so that the possibility that water vapour is easy to see through.
According to present embodiment, in corresponding position, bight such outsourcing material 12 and core 13 that want attenuation, dispose first gas permeability bag 21 of having accommodated first hygroscopic agent 14 and the second gas permeability bag 22 of having accommodated second hygroscopic agent 15, therefore can efficient absorb the water vapour that sees through from the bight of outsourcing material 12 well.
(the 3rd mode of execution)
Fig. 8 shows the vacuum heat-insulating plate 41 of the 3rd mode of execution of the present invention.In addition, the identical reference character of part mark to identical with above-mentioned first mode of execution omits its detailed description.
First hygroscopic agent 14 of this vacuum heat-insulating plate 41 and second hygroscopic agent 15 are not housed in the first gas permeability bag 21 shown in first mode of execution and in the second gas permeability bag 22, but are evenly dispersed between the duplexer 13a of core 13.
In addition, using under the situation of calcium oxide 15a as second hygroscopic agent 15, calcium oxide 15a is granular.The granular extreme length of this calcium oxide 15a is preferably 0.5～3mm.
In addition, using under the situation of silica gel 15b as second hygroscopic agent 15, silica gel 15b is granular.The granular extreme length of this silica gel 15b is preferably 0.5～3mm.
In the present embodiment, after mixing with magnesium oxide 14a and anhydrous magnesium chloride 14b or with calcium oxide 15a (or silica gel 15b), be sprinkling upon between the duplexer 13a of core 13, thus first hygroscopic agent 14 and second hygroscopic agent 15 be configured between the duplexer 13a of core 13.
Then, by this core 13 being housed in the outsourcing material 12 and reducing pressure, obtain vacuum heat-insulating plate 41.
According to said structure, first hygroscopic agent 14 and second hygroscopic agent 15 are easily evenly mixed, reduce the deviation of thermal conductivity.
And then, since second hygroscopic agent 15 be easy to be present in first hygroscopic agent 14 near, so can utilize second hygroscopic agent, 15 efficient to absorb the moisture (water vapour) of discharging well from first hygroscopic agent 14.
(the 4th mode of execution)
Fig. 9 and Figure 10 show the vacuum heat-insulating plate 51 of the 4th mode of execution of the present invention.In addition, the identical reference character of part mark to identical with above-mentioned first mode of execution omits its detailed description.
First hygroscopic agent 14 of vacuum heat-insulating plate 51 all is housed in first accommodation bag 52.But first accommodation bag 52 by the material of permeate water steam for example nonwovens form.In addition, in the present embodiment, do not use the first gas permeability bag 21 shown in first mode of execution and the second gas permeability bag 22.
Contain first accommodation bag 52 of first hygroscopic agent 14, be housed in than in the second big accommodation bag 53 of first accommodation bag 52.But second accommodation bag 53 is formed by the nonwovens of permeate water steam.
Contain the second whole hygroscopic agents 15 in this second accommodation bag 53.Second hygroscopic agent 15 preferably in the mode of a face covering first accommodation bag 52 at least, more preferably to cover the mode of first accommodation bag, 52 integral body, is housed in second accommodation bag 53.
According to said structure, cover first hygroscopic agent 14 owing to be configured to second hygroscopic agent 15, so can utilize second hygroscopic agent, 15 efficient to absorb the moisture (water vapour) of discharging well from first hygroscopic agent 14.
(the 5th mode of execution)
Figure 11 and Figure 12 show the vacuum heat-insulating plate 61 of the 5th mode of execution of the present invention.In addition, the identical reference character of part mark to identical with above-mentioned first mode of execution omits its detailed description.
Whole being housed in of whole and second hygroscopic agent 15 of first hygroscopic agent 14 of vacuum heat-insulating plate 61 mixed in the accommodation bag 62.But mix accommodation bag 62 by the material of permeate water steam for example nonwovens form.In addition, in the present embodiment, do not use the first gas permeability bag 21 shown in first mode of execution and the second gas permeability bag 22.
Being housed in whole and second hygroscopic agent 15 that mixes first hygroscopic agent 14 in the accommodation bag 62 preferably mixes equably.
As shown in figure 11, this mixing accommodation bag 62 is configured between the duplexer 13a of core 13 among in outsourcing material 12.
According to said structure mix in the accommodation bag 62 because first hygroscopic agent 14 and second hygroscopic agent 15 are housed in, so second hygroscopic agent 15 be easy to be present in first hygroscopic agent 14 near.
Thus, can utilize second hygroscopic agent, 15 efficient to absorb the moisture (water vapour) of discharging well from first hygroscopic agent 14.
In addition, because first hygroscopic agent 14 and second hygroscopic agent 15 are housed in the mixing accommodation bag 62, so easily first hygroscopic agent 14 and second hygroscopic agent 15 are housed in the outsourcing material 12.
(the 6th mode of execution)
Figure 13 shows the vacuum heat-insulating plate 71 of the 6th mode of execution of the present invention.In addition, the identical reference character of part mark to identical with above-mentioned first mode of execution omits its detailed description.
The core 72 that uses in vacuum heat-insulating plate 71 is not lit-par-lit structure, but is 1 planar.This vacuum heat-insulating plate 71 between outsourcing material 12 and core 72, disposes first gas permeability bag 21 of having accommodated first hygroscopic agent 14 and the second gas permeability bag 22 of having accommodated second hygroscopic agent 15.
At this moment, the second gas permeability bag 22 and first mode of execution similarly are configured to surround the first gas permeability bag 21.
In said structure, also can access the action effect identical with first mode of execution.
In addition, the present invention is not limited to mode of execution above-mentioned and shown in the drawings, can carry out following distortion, expansion.
The stacked of core 13 can also can suitably be disposed first hygroscopic agent 14 and second hygroscopic agent 15 for more than 3 layers between each layer.
In the 6th mode of execution to disposing first hygroscopic agent 14 in the mode identical and second hygroscopic agent 15 is illustrated with first mode of execution, but in the 6th mode of execution, also can first hygroscopic agent 14 and second hygroscopic agent 15 be arranged between outsourcing material 12 and the core 73 with the structure shown in second～the 5th mode of execution.
The present invention is that example is illustrated with the vacuum heat-insulating plate that is used for refrigerator, but can be applicable to employed vacuum heat-insulating plate in the Environmental Conditions below 70 ℃.
In addition, the present invention can suitably change and implement in the scope that does not break away from purport and obtain.
Claims (8)
1. a vacuum heat-insulating plate is characterized in that, comprising:
Outsourcing material is a bag shape, and inside is depressurized;
Core is housed in the described outsourcing material, has adiabaticity;
First hygroscopic agent is housed in the described outsourcing material, contains magnesium oxide and anhydrous magnesium chloride; And,
Second hygroscopic agent is housed in the described outsourcing material, contains at least one side in calcium oxide and the silica gel.
2. vacuum heat-insulating plate as claimed in claim 1 is characterized in that:
Described second hygroscopic agent be configured in described first hygroscopic agent around.
3. vacuum heat-insulating plate as claimed in claim 1 or 2 is characterized in that:
Described core is made of a plurality of duplexers,
Described first hygroscopic agent and described second hygroscopic agent are configured between the duplexer of described core.
4. vacuum heat-insulating plate as claimed in claim 1 or 2 is characterized in that:
Described core is polygonal flat board roughly,
Described first hygroscopic agent and described second hygroscopic agent are configured in the bight of described core.
5. vacuum heat-insulating plate as claimed in claim 1 or 2 is characterized in that:
Described first hygroscopic agent and described second hygroscopic agent be configuration dispersedly evenly.
6. vacuum heat-insulating plate as claimed in claim 1 or 2 is characterized in that,
Also comprise:
First accommodation bag has water vapo(u)r transmission, accommodates described first hygroscopic agent; And
Second accommodation bag has water vapo(u)r transmission, accommodates described first accommodation bag and described second hygroscopic agent,
Described second accommodation bag is housed in the described outsourcing material.
7. vacuum heat-insulating plate as claimed in claim 1 or 2 is characterized in that:
Comprise the mixing accommodation bag, this mixing accommodation bag has water vapo(u)r transmission, and mix and accommodate described first hygroscopic agent and described second hygroscopic agent,
Described mixing accommodation bag is housed in the described outsourcing material.
8. a refrigerator constitutes body of thermal insulating box by case and steel plate system outer container in the synthetic resin system, has storeroom in the inside of described body of thermal insulating box, it is characterized in that:
Described outer container internal surface at described body of thermal insulating box is equipped with claim 1 or 2 described described vacuum heat-insulating plates.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP070013/2010 | 2010-03-25 | ||
| JP2010070013A JP5426445B2 (en) | 2010-03-25 | 2010-03-25 | Vacuum insulation panel |
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| Publication Number | Publication Date |
|---|---|
| CN102200214A true CN102200214A (en) | 2011-09-28 |
| CN102200214B CN102200214B (en) | 2015-09-30 |
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| CN201110043349.XA Expired - Fee Related CN102200214B (en) | 2010-03-25 | 2011-02-22 | Vacuum heat-insulating plate and refrigerator |
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| JP (1) | JP5426445B2 (en) |
| CN (1) | CN102200214B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141100A (en) * | 2018-11-06 | 2020-05-12 | 日立环球生活方案株式会社 | Vacuum heat insulation member |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6070269B2 (en) * | 2013-02-27 | 2017-02-01 | 東芝ホームテクノ株式会社 | Insulation |
| JP6185270B2 (en) * | 2013-04-08 | 2017-08-23 | 旭ファイバーグラス株式会社 | Vacuum insulation |
| JP6830408B2 (en) * | 2017-06-07 | 2021-02-17 | 日立グローバルライフソリューションズ株式会社 | Vacuum heat insulating material |
| JP2020122631A (en) * | 2019-01-31 | 2020-08-13 | 東芝ライフスタイル株式会社 | Refrigerator and vacuum heat insulation panel |
| JP2020122632A (en) * | 2019-01-31 | 2020-08-13 | 東芝ライフスタイル株式会社 | Refrigerator and vacuum heat insulation panel |
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| JPH11257581A (en) * | 1998-03-13 | 1999-09-21 | Sanyo Electric Co Ltd | Recyclable vacuum thermal insulation material and manufacture thereof |
| CN101243282A (en) * | 2005-08-18 | 2008-08-13 | 日本合成化学工业株式会社 | Vacuum heat insulation structure |
| CN101441038A (en) * | 2007-11-21 | 2009-05-27 | 光洋热系统株式会社 | Heat resisting vacuum heat insulating material |
| CN101660648A (en) * | 2008-08-28 | 2010-03-03 | 日立空调·家用电器株式会社 | Vacuum heat insulation material, heat insulation box body using the same, and refrigerator |
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| JPH08159373A (en) * | 1994-11-30 | 1996-06-21 | Sanyo Electric Co Ltd | Vacuum heat insulating material |
| JPH09267873A (en) * | 1996-01-23 | 1997-10-14 | Mitsubishi Gas Chem Co Inc | Vacuum heat insulating material |
| JP2002363192A (en) * | 2001-06-01 | 2002-12-18 | Nippon Soda Co Ltd | Preservation method for enolic compound |
| JP2005106312A (en) * | 2003-09-29 | 2005-04-21 | Hitachi Home & Life Solutions Inc | Refrigerator, vacuum heat insulating panel and its manufacturing method |
| US7217314B2 (en) * | 2005-01-10 | 2007-05-15 | Gore Enterprise Holdings, Inc. | Venting system for minimizing condensation in a lighting assembly |
| JP4774320B2 (en) * | 2006-03-30 | 2011-09-14 | 日立アプライアンス株式会社 | Vacuum heat insulating material and manufacturing method thereof |
| JP5194812B2 (en) * | 2008-01-15 | 2013-05-08 | パナソニック株式会社 | Vacuum heat insulating material and building material to which vacuum heat insulating material is applied |
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| JPH11257581A (en) * | 1998-03-13 | 1999-09-21 | Sanyo Electric Co Ltd | Recyclable vacuum thermal insulation material and manufacture thereof |
| CN101243282A (en) * | 2005-08-18 | 2008-08-13 | 日本合成化学工业株式会社 | Vacuum heat insulation structure |
| CN101441038A (en) * | 2007-11-21 | 2009-05-27 | 光洋热系统株式会社 | Heat resisting vacuum heat insulating material |
| CN101660648A (en) * | 2008-08-28 | 2010-03-03 | 日立空调·家用电器株式会社 | Vacuum heat insulation material, heat insulation box body using the same, and refrigerator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111141100A (en) * | 2018-11-06 | 2020-05-12 | 日立环球生活方案株式会社 | Vacuum heat insulation member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011202729A (en) | 2011-10-13 |
| JP5426445B2 (en) | 2014-02-26 |
| CN102200214B (en) | 2015-09-30 |
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