JP2004286252A - Heat insulation panel - Google Patents

Heat insulation panel Download PDF

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Publication number
JP2004286252A
JP2004286252A JP2003076022A JP2003076022A JP2004286252A JP 2004286252 A JP2004286252 A JP 2004286252A JP 2003076022 A JP2003076022 A JP 2003076022A JP 2003076022 A JP2003076022 A JP 2003076022A JP 2004286252 A JP2004286252 A JP 2004286252A
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JP
Japan
Prior art keywords
heat insulating
vacuum
heat insulation
panel
temperature range
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.)
Pending
Application number
JP2003076022A
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Japanese (ja)
Inventor
Tsukasa Nakamura
司 中村
Hiroshi Kanamaru
弘志 金丸
Yukio Eto
征雄 江藤
Yuuzou Katsu
優三 勝
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Hino Motors Ltd
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Hino Motors Ltd
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Filing date
Publication date
Application filed by Hino Motors Ltd filed Critical Hino Motors Ltd
Priority to JP2003076022A priority Critical patent/JP2004286252A/en
Publication of JP2004286252A publication Critical patent/JP2004286252A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Thermal Insulation (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Refrigerator Housings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To expand an effective temperature range of heat insulation performance of a heat insulation panel using a vacuum heat insulation material as compared with a conventional one. <P>SOLUTION: This application relates to this heat insulation panel 22 using the vacuum heat insulation materials 15A and 15B composed by vacuum-sealing core materials 16A and 16B with an airtight film 17. A plurality of kinds of the vacuum heat insulation materials 15A and 15B having different heat insulation characteristics defined by the core materials 16A and 16B are stacked in the panel thickness direction; the insulation material 15A having the heat insulation characteristic with a relatively high effective temperature range is disposed on the side set at a relatively high temperature in the panel thickness direction; and the insulation material 15B having the heat insulation characteristic with a relatively low effective temperature range is disposed on the side set at a relatively low temperature in the panel thickness direction. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、断熱パネルに関するものである。
【0002】
【従来の技術】
図3は従来における冷凍保冷車の一例を模式的に示したもので、ここに図示している冷凍保冷車1においては、キャブ2後部のシャシフレーム3上に冷凍保冷庫を成す箱形の荷台4が搭載されており、この荷台4の土台部分にあたる床構造5を取り囲む前壁6、後壁7、左右の側壁8、屋根9の夫々が、図4に示す如き断熱パネル10により構成されている。
【0003】
即ち、この断熱パネル10は、アルミニウム製の外板11と内板12との間に、スチレンやウレタン等の発泡断熱材13を挟んで接着剤14により貼り合わせたサンドイッチ構造を成すようにしてある。
【0004】
ところが、近年においては、前述した如き発泡断熱材13より断熱性能に優れ且つ軽量な真空断熱材を利用して断熱パネルを構成することが実用化されてきている(例えば特許文献1参照)。
【0005】
【特許文献1】
特開2002−267344号公報
【0006】
図5に一例を示している通り、真空断熱材15とは、連続気泡硬質ウレタンフォーム等をコア材16として使用し、これを図示しないゲッター剤(真空度劣化防止のガス吸着剤)と共に空気や水蒸気等の気体を殆ど通さないアルミコルゲートフィルム等の気密フィルム17により被包し、その内部を真空ポンプでほぼ真空になるまで排気した後に密封したものである。
【0007】
ただし、前記真空断熱材15のコア材16としては、連続気泡硬質ウレタンフォーム等の多孔質材料の他、シリカ等の粉末凝固材料やグラスウール等の繊維質材料を採用することも可能である。
【0008】
尚、コア材16を気密フィルム17で真空密封するに際し、気密フィルム17には余裕寸法が必要であるので、気密フィルム17の縁部を圧着により閉じ合わせた封止箇所には、前記余裕寸法分を含んだ圧着片部18が残ることになる。
【0009】
そして、斯かる真空断熱材15を利用して断熱パネルを構成するにあたっては、図6に示す如く、真空断熱材15の周囲に発泡断熱材13を充填して硬化させることにより該発泡断熱材13の内部に真空断熱材15を埋め込んだ断熱パネル19としたり、或いは、図7に示す如く、一対のパネル型の発泡断熱材13,13の間に真空断熱材15を挟んで接着剤14により一枚ずつ貼り合わせたサンドイッチ構造の断熱パネル20としたりしていた。尚、図7中における21は硬質ウレタンフォーム等から成る補強柱を示している。
【0010】
【発明が解決しようとする課題】
しかしながら、前記真空断熱材15は、その内部に真空密封されるコア材16により決まる断熱特性を有しており、コア材16自体の熱伝導率の違いにより高い断熱性能を示す有効温度域が異なるものとなるので、例えば、前述した如き冷凍保冷車1の荷台4(図3参照)を形成するための断熱パネルの構成要素として真空断熱材15を利用する場合、庫内温度から外壁温度までの範囲の全ての温度域で高い断熱性能を得ることができないという問題があった。
【0011】
より具体的に述べると、冷凍保冷車1における荷台4の屋根9等では、日射により外板11が約60〜80℃にも温度上昇することがあるが、コア材16としてグラスウールを真空密封した真空断熱材15(繊維型真空断熱材)の場合には、0℃以下の庫内温度に近い低温域で優れた断熱性能を発揮する反面、前述した如き約60〜80℃の高い温度域で断熱性能が低下してしまい、外板11からの入熱量を十分に抑制しきれないという不具合が起こり得る。
【0012】
他方、シリカ粉末を凝固させたコア材16を真空密封した真空断熱材15(粉末凝固型真空断熱材)では、前述した如き約60〜80℃の高い温度域で優れた断熱性能を発揮するが、0℃以下の庫内温度に近い低温域で断熱性能が低下してしまい、庫内への入熱量を十分に抑制しきれないという不具合が起こり得る。
【0013】
本発明は上述の実情に鑑みてなしたもので、真空断熱材を利用した断熱パネルにおける断熱性能の有効温度域を従来より拡張することを目的としている。
【0014】
【課題を解決するための手段】
本発明は、コア材を気密フィルムにより真空密封して成る真空断熱材を使用した断熱パネルであって、コア材により決まる断熱特性が異なる複数種類の真空断熱材をパネル厚さ方向に積層すると共に、有効温度域が相対的に高い断熱特性を有する真空断熱材をパネル厚さ方向の相対的に温度が高くなる側に配置し且つ有効温度域が相対的に低い断熱特性を有する真空断熱材をパネル厚さ方向の相対的に温度が低くなる側に配置したことを特徴とするものである。
【0015】
而して、このようにすれば、パネル厚さ方向の相対的に温度が高くなる側からの入熱量を、この高い温度域に適した断熱特性を有する真空断熱材により効果的に断熱して抑制し、しかも、その効果的に抑制された入熱量を更にパネル厚さ方向の相対的に温度が低くなる側において、低い温度域に適した断熱特性を有する別の真空断熱材により効果的に断熱して抑制することが可能となるので、断熱特性が異なる複数種類の真空断熱材同士で互いに断熱性能が低下する温度域を補い合うようにしてパネル全体としての断熱性能の有効温度域を拡張することが可能となる。
【0016】
【発明の実施の形態】
以下本発明の実施の形態を図面を参照しつつ説明する。
【0017】
図1及び図2は本発明を実施する形態の一例を示すもので、図3〜図7と同一の符号を付した部分は同一物を表わしている。
【0018】
図1に示す如く、本形態例においては、冷凍保冷車1の荷台4(図3参照)を形成するための断熱パネル22の場合で例示してあり、この断熱パネル22は、シリカ粉末を凝固させたコア材16Aを真空密封した真空断熱材15A(粉末凝固型真空断熱材)と、コア材16Bとしてグラスウールを真空密封した真空断熱材15B(繊維型真空断熱材)とをパネル厚さ方向(図1中における上下方向)に積層して装備したものとなっている。
【0019】
ここで、図2にグラフで示す如く、シリカ粉末を凝固させたコア材16Aを真空密封した真空断熱材15Aは、有効温度域が比較的高い断熱特性を有するものとなっており、より具体的には、約60℃以上の温度域で安定して良好な断熱性能を発揮するようになっている。他方、コア材16Bとしてグラスウールを真空密封した真空断熱材15B(繊維型真空断熱材)は、有効温度域が比較的低い断熱特性を有するものとなっており、より具体的には、約50℃以下の温度域で安定して良好な断熱性能を発揮するようになっている。
【0020】
更に、パネル厚さ方向に積層された真空断熱材15A,15Bの各組は、一対のパネル型の発泡断熱材13,13の間に挾持されて相互に接着剤14により貼り合わされるようになっており、各組の真空断熱材15A,15Bの境界部分には、硬質ウレタンフォーム等から成る補強柱21がパネル剛性を高める目的で介装されている。
【0021】
尚、各組の真空断熱材15A,15Bを両発泡断熱材13,13で挾持するに際しては、真空断熱材15A,15Bの圧着片部18を折り返して夫々の表面に沿わせた状態とすることで隙間の形成をできるだけ回避し、これにより熱対流の発生を極力阻止するようにしておくことが好ましい。
【0022】
そして、真空断熱材15Aに接着されている発泡断熱材13の外側面にアルミニウム製の外板11を被覆して相互を接着剤14により接着すると共に、真空断熱材15Bに接着されている発泡断熱材13の外側面にアルミニウム製の内板12を被覆して相互を接着剤14により接着し、これにより真空断熱材15Aがパネル厚さ方向の相対的に温度が高くなる外板11側に配置され、真空断熱材15Bがパネル厚さ方向の相対的に温度が低くなる庫内側に配置されるようにしておく。
【0023】
而して、このような断熱パネル22を採用すれば、パネル厚さ方向の相対的に温度が高くなる外板11側からの入熱量を、この高い温度域に適した断熱特性を有する真空断熱材15Aにより効果的に断熱して抑制し、しかも、その効果的に抑制された入熱量を更にパネル厚さ方向の相対的に温度が低くなる庫内側において、低い温度域に適した断熱特性を有する真空断熱材15Bにより効果的に断熱して抑制することが可能となる。
【0024】
従って、上記形態例によれば、断熱特性が異なる二種類の真空断熱材15A,15B同士で互いに断熱性能が低下する温度域を補い合わせるようにすることができ、これによって、断熱パネル22の全体としての断熱性能の有効温度域を従来より大幅に拡張することができる。
【0025】
尚、本発明の断熱パネルは、上述の形態例にのみ限定されるものではなく、冷凍保冷車以外に、寒冷地における保温車、冷凍庫、保温庫等にも適用し得ること、また、真空断熱材は三層以上に積層しても良いこと、その他、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。
【0026】
【発明の効果】
上記した本発明の断熱パネルによれば、断熱特性が異なる複数種類の真空断熱材同士で互いに断熱性能が低下する温度域を補い合うようにしてパネル全体としての断熱性能の有効温度域を従来より大幅に拡張することができるという優れた効果を奏し得る。
【図面の簡単な説明】
【図1】本発明を実施する形態の一例を示す断面図である。
【図2】図1の二種類の真空断熱材についての断熱特性を示すグラフである。
【図3】従来における冷凍保冷車の一例を模式的に示す概略図である。
【図4】図3の荷台を形成している断熱パネルの詳細を示す断面図である。
【図5】真空断熱材の詳細を示す断面図である。
【図6】図5の真空断熱材を利用した断熱パネルの従来例を示す断面図である。
【図7】図5の真空断熱材を利用した断熱パネルの別の従来例を示す断面図である。
【符号の説明】
15A 真空断熱材
15B 真空断熱材
16A コア材
16B コア材
17 気密フィルム
22 断熱パネル
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a heat insulating panel.
[0002]
[Prior art]
FIG. 3 schematically shows an example of a conventional refrigerated cooler. In the refrigerated cooler 1 shown here, a box-shaped carrier that forms a refrigerated cooler on a chassis frame 3 at the rear of the cab 2 is shown. 4, a front wall 6, a rear wall 7, left and right side walls 8, and a roof 9 surrounding a floor structure 5 corresponding to a base portion of the loading platform 4 are each constituted by a heat insulating panel 10 as shown in FIG. I have.
[0003]
That is, the heat insulating panel 10 has a sandwich structure in which a foamed heat insulating material 13 such as styrene or urethane is sandwiched between an outer plate 11 and an inner plate 12 made of aluminum and bonded with an adhesive 14. .
[0004]
However, in recent years, it has been put to practical use to configure a heat insulating panel using a vacuum heat insulating material which is superior in heat insulating performance and lighter than the foam heat insulating material 13 as described above (for example, see Patent Document 1).
[0005]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2002-267344
As shown in FIG. 5, an example of the vacuum heat insulating material 15 is an open cell hard urethane foam or the like used as a core material 16 together with a getter agent (a gas adsorbent for preventing the degree of vacuum deterioration) from air or the like. It is wrapped with an airtight film 17 such as an aluminum corrugated film that almost does not allow gas such as water vapor to pass therethrough, and the inside thereof is evacuated to almost a vacuum by a vacuum pump and then sealed.
[0007]
However, as the core material 16 of the vacuum heat insulator 15, besides a porous material such as open-celled rigid urethane foam, a powder solidified material such as silica or a fibrous material such as glass wool can be used.
[0008]
When the core material 16 is vacuum-sealed with the airtight film 17, the airtight film 17 needs an extra dimension. Therefore, the sealing portion where the edges of the airtight film 17 are closed by pressure bonding has the extra dimension. Is left.
[0009]
In order to form a heat insulating panel by using the vacuum heat insulating material 15, as shown in FIG. 6, the foam heat insulating material 13 is filled around the vacuum heat insulating material 15 and cured to form the heat insulating panel. 7, a heat insulating panel 19 in which a vacuum heat insulating material 15 is embedded, or as shown in FIG. For example, the heat insulating panel 20 has a sandwich structure that is laminated one by one. Incidentally, reference numeral 21 in FIG. 7 denotes a reinforcing column made of hard urethane foam or the like.
[0010]
[Problems to be solved by the invention]
However, the vacuum heat-insulating material 15 has heat-insulating properties determined by the core material 16 that is vacuum-sealed therein, and the effective temperature range at which high heat-insulating performance differs due to the difference in the thermal conductivity of the core material 16 itself. For example, when the vacuum heat insulating material 15 is used as a component of the heat insulating panel for forming the bed 4 (see FIG. 3) of the refrigerator car 1 as described above, the temperature from the inside temperature to the outside wall temperature is reduced. There was a problem that high heat insulating performance could not be obtained in all temperature ranges in the range.
[0011]
More specifically, on the roof 9 or the like of the bed 4 of the refrigerator car 1, the temperature of the outer plate 11 may rise to about 60 to 80 ° C. due to solar radiation, but glass wool is vacuum-sealed as the core material 16. In the case of the vacuum heat insulating material 15 (fiber type vacuum heat insulating material), while exhibiting excellent heat insulating performance in a low temperature range close to the internal temperature of 0 ° C. or less, in the high temperature range of about 60 to 80 ° C. as described above. The heat insulation performance may be reduced, and a problem may occur that the amount of heat input from the outer plate 11 cannot be sufficiently suppressed.
[0012]
On the other hand, the vacuum heat insulating material 15 (powder coagulated vacuum heat insulating material) in which the core material 16 obtained by coagulating silica powder is vacuum-sealed exhibits excellent heat insulating performance in a high temperature range of about 60 to 80 ° C. as described above. In addition, the heat insulation performance may be reduced in a low temperature range close to the internal temperature of 0 ° C. or lower, and a problem may occur that the amount of heat input into the internal compartment cannot be sufficiently suppressed.
[0013]
The present invention has been made in view of the above circumstances, and has as its object to extend the effective temperature range of the heat insulating performance of a heat insulating panel using a vacuum heat insulating material.
[0014]
[Means for Solving the Problems]
The present invention relates to a heat insulating panel using a vacuum heat insulating material obtained by vacuum-sealing a core material with an airtight film, wherein a plurality of types of vacuum heat insulating materials having different heat insulating properties determined by the core material are laminated in the panel thickness direction. A vacuum heat insulating material having an effective temperature range having a relatively high heat insulating property is disposed on the side where the temperature is relatively high in the panel thickness direction, and a vacuum heat insulating material having an effective temperature range having a relatively low heat insulating property. It is characterized by being arranged on the side where the temperature is relatively low in the panel thickness direction.
[0015]
In this way, the heat input from the side where the temperature becomes relatively high in the panel thickness direction can be effectively insulated by the vacuum heat insulating material having the heat insulating property suitable for this high temperature range. On the side where the temperature is further reduced relatively in the panel thickness direction, another vacuum heat insulating material having heat insulating properties suitable for a low temperature range can be effectively suppressed. Since it is possible to suppress by insulating, it is possible to extend the effective temperature range of the heat insulation performance of the entire panel by compensating for the temperature range in which the heat insulation performance is reduced by a plurality of types of vacuum heat insulating materials having different heat insulation properties. It becomes possible.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
FIG. 1 and FIG. 2 show an example of an embodiment of the present invention, and portions denoted by the same reference numerals as those in FIG. 3 to FIG.
[0018]
As shown in FIG. 1, in the present embodiment, an example is shown of a heat insulating panel 22 for forming a bed 4 (see FIG. 3) of the refrigerator car 1, and the heat insulating panel 22 solidifies silica powder. A vacuum heat insulating material 15A (powder coagulated vacuum heat insulating material) in which the sealed core material 16A is vacuum-sealed, and a vacuum heat insulating material 15B (fiber-type vacuum heat insulating material) in which glass wool is vacuum-sealed as the core material 16B, in the panel thickness direction ( It is equipped in a stacked manner (up and down direction in FIG. 1).
[0019]
Here, as shown in the graph of FIG. 2, the vacuum heat insulating material 15A obtained by vacuum-sealing the core material 16A obtained by coagulating the silica powder has a relatively high effective temperature range and a relatively high heat insulating property. Has a good thermal insulation performance stably in a temperature range of about 60 ° C. or more. On the other hand, the vacuum heat insulating material 15B (fiber-type vacuum heat insulating material) in which glass wool is vacuum-sealed as the core material 16B has a heat insulating property in which the effective temperature range is relatively low, and more specifically, about 50 ° C. It is designed to exhibit good heat insulation performance stably in the following temperature range.
[0020]
Further, each set of vacuum heat insulating materials 15A and 15B stacked in the panel thickness direction is sandwiched between a pair of panel-type foam heat insulating materials 13 and 13 and bonded to each other by an adhesive 14. Reinforcing columns 21 made of hard urethane foam or the like are interposed at the boundary between the vacuum heat insulators 15A and 15B in each set for the purpose of increasing panel rigidity.
[0021]
When the vacuum insulation materials 15A and 15B of each set are sandwiched between the foam insulation materials 13 and 13, the crimping pieces 18 of the vacuum insulation materials 15A and 15B are folded back so as to be along the respective surfaces. It is preferred that the formation of a gap be avoided as much as possible, thereby minimizing the generation of thermal convection.
[0022]
The outer surface of the foamed heat insulating material 13 adhered to the vacuum heat insulating material 15A is covered with an aluminum outer plate 11 and adhered to each other by an adhesive 14, and the foamed heat insulating material adhered to the vacuum heat insulating material 15B. The outer surface of the material 13 is covered with an inner plate 12 made of aluminum and adhered to each other with an adhesive 14, whereby the vacuum heat insulating material 15A is disposed on the outer plate 11 side where the temperature is relatively high in the panel thickness direction. Then, the vacuum heat insulating material 15B is arranged inside the refrigerator where the temperature in the panel thickness direction is relatively low.
[0023]
Thus, if such a heat insulating panel 22 is adopted, the heat input from the outer plate 11 side where the temperature becomes relatively high in the panel thickness direction can be reduced by the vacuum heat insulating property suitable for this high temperature range. The material 15A effectively insulates and suppresses the heat, and furthermore, the effectively suppressed heat input is further improved in a heat insulating property suitable for a low temperature range on the inside of the cabinet where the temperature in the panel thickness direction becomes relatively lower. It is possible to effectively insulate and suppress by the vacuum heat insulating material 15B.
[0024]
Therefore, according to the above embodiment, it is possible to compensate for the temperature range in which the heat insulating performance is reduced by the two types of vacuum heat insulating materials 15A and 15B having different heat insulating properties. As a result, the effective temperature range of the heat insulation performance can be greatly extended as compared with the conventional case.
[0025]
In addition, the heat insulation panel of the present invention is not limited to the above-described embodiment, and may be applied to a cold storage vehicle, a freezer, a freezer, etc. The material may be laminated in three or more layers, and it is needless to say that various changes can be made without departing from the spirit of the present invention.
[0026]
【The invention's effect】
According to the above-described heat insulation panel of the present invention, the effective temperature range of the heat insulation performance of the entire panel is significantly increased by compensating for the temperature range in which the heat insulation performance is reduced by a plurality of types of vacuum heat insulating materials having different heat insulation properties. It is possible to achieve an excellent effect that it can be extended.
[Brief description of the drawings]
FIG. 1 is a sectional view showing an example of an embodiment of the present invention.
FIG. 2 is a graph showing heat insulating properties of the two types of vacuum heat insulating materials of FIG.
FIG. 3 is a schematic diagram schematically showing an example of a conventional refrigerator car.
FIG. 4 is a cross-sectional view showing details of a heat insulating panel forming the carrier of FIG. 3;
FIG. 5 is a sectional view showing details of a vacuum heat insulating material.
FIG. 6 is a cross-sectional view showing a conventional example of a heat insulating panel using the vacuum heat insulating material of FIG.
7 is a cross-sectional view showing another conventional example of a heat insulating panel using the vacuum heat insulating material of FIG.
[Explanation of symbols]
15A Vacuum insulation material 15B Vacuum insulation material 16A Core material 16B Core material 17 Airtight film 22 Thermal insulation panel

Claims (1)

コア材を気密フィルムにより真空密封して成る真空断熱材を使用した断熱パネルであって、コア材により決まる断熱特性が異なる複数種類の真空断熱材をパネル厚さ方向に積層すると共に、有効温度域が相対的に高い断熱特性を有する真空断熱材をパネル厚さ方向の相対的に温度が高くなる側に配置し且つ有効温度域が相対的に低い断熱特性を有する真空断熱材をパネル厚さ方向の相対的に温度が低くなる側に配置したことを特徴とする断熱パネル。A heat insulating panel using a vacuum heat insulating material obtained by vacuum-sealing a core material with an air-tight film. Is disposed on the side where the temperature is relatively high in the panel thickness direction, and the vacuum heat insulation material having the relatively low effective temperature range is relatively low. A heat insulating panel, wherein the heat insulating panel is disposed on the side where the temperature is relatively low.
JP2003076022A 2003-03-19 2003-03-19 Heat insulation panel Pending JP2004286252A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007168721A (en) * 2005-12-26 2007-07-05 Nippon Fruehauf Co Ltd Wiring structure on box-shaped cargo deck
KR100767104B1 (en) 2007-01-30 2007-10-17 김미경 Panel for partition of assemlbling for construction
JP2008008311A (en) * 2006-06-27 2008-01-17 Matsushita Electric Ind Co Ltd Heat insulation material and heat insulation box using the same
JP2010090970A (en) * 2008-10-07 2010-04-22 Ebara Corp Heat-insulating structure and exhaust gas treatment device
CN1948872B (en) * 2005-10-13 2011-01-12 三洋电机株式会社 Low temperature refrigerator manufacturing method and low temperature refrigerator
JP2012032014A (en) * 2010-07-28 2012-02-16 Toshiba Corp Refrigerator
JP2014202303A (en) * 2013-04-05 2014-10-27 富士電機株式会社 Vacuum insulating material and insulating container
JP2014211303A (en) * 2014-08-19 2014-11-13 株式会社東芝 Refrigerator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1948872B (en) * 2005-10-13 2011-01-12 三洋电机株式会社 Low temperature refrigerator manufacturing method and low temperature refrigerator
JP2007168721A (en) * 2005-12-26 2007-07-05 Nippon Fruehauf Co Ltd Wiring structure on box-shaped cargo deck
JP2008008311A (en) * 2006-06-27 2008-01-17 Matsushita Electric Ind Co Ltd Heat insulation material and heat insulation box using the same
KR100767104B1 (en) 2007-01-30 2007-10-17 김미경 Panel for partition of assemlbling for construction
JP2010090970A (en) * 2008-10-07 2010-04-22 Ebara Corp Heat-insulating structure and exhaust gas treatment device
JP2012032014A (en) * 2010-07-28 2012-02-16 Toshiba Corp Refrigerator
JP2014202303A (en) * 2013-04-05 2014-10-27 富士電機株式会社 Vacuum insulating material and insulating container
JP2014211303A (en) * 2014-08-19 2014-11-13 株式会社東芝 Refrigerator

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