JP3870511B2 - Insulated wall structure - Google Patents

Insulated wall structure Download PDF

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Publication number
JP3870511B2
JP3870511B2 JP29236597A JP29236597A JP3870511B2 JP 3870511 B2 JP3870511 B2 JP 3870511B2 JP 29236597 A JP29236597 A JP 29236597A JP 29236597 A JP29236597 A JP 29236597A JP 3870511 B2 JP3870511 B2 JP 3870511B2
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heat insulating
outer plate
vacuum heat
vacuum
wall structure
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JPH11130161A (en
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誠一路 木藤
尚孝 山本
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Isuzu Motors Ltd
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Isuzu Motors Ltd
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    • 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
    • F16L59/12—Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating material; Arrangements specially adapted for supporting insulated bodies

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Thermal Insulation (AREA)
  • Refrigerator Housings (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、冷凍車や保冷車等に装備される車両用断熱荷箱に関し、特に断熱荷箱の断熱壁構造に関する。
【０００２】
【従来の技術】
図１は、本発明を適用する保冷車、冷凍車の一般構造を示す。
車両１は、車体のフレーム５上に断熱荷箱１０を搭載した構造を有する。
【０００３】
図２は、断熱荷箱を構成する壁部材２０の断面構造を示し、アルミ又はＦＲＰ製の外板２２と同じくアルミ又はＦＲＰ製の内板２４の間にポリスチレンフォーム又はポリウレタンフォームの板材３０を挾み込み、接着剤４０で接合した構造が用いられていた。
【０００４】
この種の断熱荷箱に対する要求としては、冷凍車の冷凍庫の予冷時間の短縮化や庫内容積拡大が望まれている。ここで、予冷時間は、荷物の積み込み前に冷凍庫内を所定の温度（低温）へ冷し込む時間である。
その短縮化は、冷凍庫への外気からの熱の進入を減少させる必要がある。そのためには、冷凍庫壁の断熱性の向上が必要となる。庫内容積拡大は、特に横幅方向である。冷凍庫の外幅寸法は、法規により規制されている。従って、庫内寸法の拡大は、断熱材の薄肉化が必要である。
壁の薄肉化も、断熱性能を現行同等と仮定した場合、冷凍庫壁の断熱性の向上が必要である。従って、これらのニーズを満足させるために、壁材の断熱性向上のための一つの手法としては、現在の発泡プラスチックフォームより熱伝導率の低い真空断熱パネルの応用が考えられる。
【０００５】
真空断熱パネルは、家電冷蔵庫の一部に既に採用されている。家電冷蔵庫で使用される真空断熱パネルは、連続発泡のウレタンフォームをアルミラミネートフィルム製の袋に入れ、真空雰囲気で密閉（シール）したものである。その真空断熱パネルを使用した冷蔵庫壁の構造は、外板にスチール、内板に真空成形等で作られたＡＢＳ樹脂等の板、その間に真空断熱パネルが外板にホットメルト系接着剤で固定され、真空断熱パネルと内板及び外板と内板の空間に独立発泡のウレタンフォームが現場発泡で形成されている。外板、内板、アルミラミネートフィルムと独立発泡のウレタンフォームの接合は、ウレタンフォームの自己接着性により強固に接合されている。
この種の真空断熱パネルは、例えば特開平４−２５７６８５号公報に開示されている。
【０００６】
図３は、真空断熱パネル５０の断面構造を示し、約０．０８ｍｍの厚さ寸法を有するアルミラミネートフィルム５２内に連続発泡ウレタンフォーム５５を充填し、真空雰囲気中でシールをしたものである。
【０００７】
【発明が解決しようとする課題】
車両用断熱荷箱の壁部材内に真空断熱パネルを挿入することにより、断熱効果の向上を図ることができる。しかしながら、車両用断熱荷箱への荷物の積み降ろしには、フォークリフトが使用されることが多く、フォークリフトの爪より断熱壁が突かれて損傷を受ける場合がある。この傷が真空断熱パネルのフィルムを貫通する断熱効果が低下してしまう。
そこで、本発明は上述した不具合を解消する断熱荷箱用の壁構造を提供するものである。
【０００８】
【課題を解決するための手段】
本発明の断熱壁構造は基本的手段として、外板と、外板の内側に接合される補強材と、外板の内側に接合される断熱性のユニット固定用骨材と、内板と真空断熱パネルとを発泡ウレタンと共に一体化して形成される真空断熱パネルユニットと、真空断熱パネルユニットをユニット固定用骨材に着脱自在に接合する接合手段を備える。
【０００９】
また、外板と、外板の内側に接合される補強材と、外板の内側に接着されるスチレンフォームと、外板の内側に接合される断熱性のユニット固定用骨材と、内板と真空断熱パネルとを発泡ウレタンと共に一体化して形成される真空断熱パネルユニットと、真空断熱パネルユニットをユニット固定用骨材に着脱自在に接合する接合手段と、真空断熱パネルユニットと補強材に接着する接着剤と、外板と真空断熱パネルユニットの間に充填される発泡ウレタンフォームを備えるものである。
そして、真空断熱パネルユニットは、内板と、内板に接合される真空断熱パネルと、真空断熱パネルを囲むブロック状の発泡ウレタンを有するものである。
【００１０】
さらに、本発明の断熱壁構造は、外板と、外板の内側に接合される補強材と、外板の内側に接合される断熱性のユニット固定用骨材と、ユニット固定用骨材の間に配設される真空断熱パネルと発泡スチレンスラブを接着して構成した真空断熱パネルユニットと、真空断熱パネルユニットと外板の間に配設される発泡スチレンスラブと、真空断熱パネルユニットと補強材および発泡スチレンスラブを接着する接着剤と、ユニット固定骨材に着脱自在に接合される内板を備えることもできる。
【００１１】
【発明の実施の形態】
図４は本発明の断熱壁構造を示す説明図である。
全体を符号１００で示す壁構造は、金属やＦＲＰ製の外板１１０と、外板１１０の内側にリベット等の機械的接合部１２０を介して固着される補強材１３０を有する。補強材１３０は、例えば中央の平坦面１３２と、その両側に折曲部１３３を介して形成される２つの平坦面１３４を有する。本実施例にあっては、中央の平坦面１３２を利用して外板１１０に固着されるが、両側の平坦面１３４を外板１１０に固着する構造とすることもできる。
【００１２】
また、外板１１０の内側には、適当な間隔毎にユニット固定用骨材１５０がリベット等の接合部１２０により固着される。この骨材１５０は、例えば木材や剛性の高い断熱材などで作られる。
一方、真空断熱パネルユニット１６０は、金属やＦＲＰ製の内板１６２と真空断熱パネル１６５を型にセットした際に、発泡ウレタン１６４を注入してユニット化したものである。
【００１３】
真空断熱パネルは、対向する２枚のアルミラミネートフィルム内に連続発泡材が真空雰囲気中で充填される構造を有する。
充填材としては、例えば、有機物系の連続発泡のウレタンフォーム及び樹脂の発泡フォーム（ポリスチレン，ポリエチレン，ポリプロピレン，フェノール，ユリア，ＡＢＳ，塩化ビニル，ナイロン，エチレン−酢酸ビニル，ラバー等）及び無機物系の発泡パーライト，シリカバルーン，ガラスマイクロバルーン，シリカ，含水珪酸，珪酸カルシウム，珪藻土，メチル化珪酸，炭酸マグネシウム，珪酸アルミナ，カーボンフォーム並びに繊維状ウール（グラスウール，石綿，アスベスト，セラミック繊維，綿ウール，ポリエステルウール，シリカアルミナウール等）等の使用が可能である。
【００１４】
以上のようにして作られた真空断熱パネルユニット１６０をリベットやボルト等の機械的接合部１２０によりユニット固定用骨材１５０に対して固着する。この際に、補強材１３０の平坦面１３４に接着剤１４０を塗布しておき、真空断熱パネル１６５と補強材１３０を接着する。
接着剤としては、熱可塑性接着剤（酢酸ビニル系，アクリル系，ポリアミド系，ポリエステル系，ポリウレタン系等）、熱硬化性接着剤（アミノ系，尿素系，メラミン系，フェノール系，レゾルシノール系，キシレン系，フラン系，エポキシ系，ウレタン系，アクリル系，不飽和ポリエステル系等）、ホットメルト系接着剤，ゴム系接着剤，シアノアクリレート系接着剤，合成水溶性接着剤，エマルジョン接着剤，液状ポリマー接着剤等の使用が可能であるが、特に熱硬化性であるウレタン系，エポキシ系，の接着剤及びホットメルト系接着剤が有効である。
【００１５】
また、真空断熱パネルユニット１６０と外板１１０の間の空間には現場で発泡ウレタンフォーム１７０を注入して断熱効果の向上を図る。
本壁構造は以上のように構成してあるので、真空断熱パネル１６５は外板１１０と内板１６２の中間部に固定されるので、損傷を受ける機会を削減することができる。
【００１６】
また、フォークリフトの爪等で内板又は外板が突き破られて真空断熱パネル１６５が損傷を受けた場合でも、この部分の真空断熱パネルユニット１６０のみを交換するだけで、断熱荷箱全体の断熱機能を回復することができるのである。
【００１７】
図５は本発明の断熱壁構造を示す説明図である。
全体を符号２００で示す壁構造は、金属やＦＲＰ製の外板２１０と、外板２１０の内側にリベット等の機械的接合部２２０を介して固着される補強材２３０を有する。補強材２３０は、例えば中央の平坦面２３２と、その両側に折曲部２３３を介して形成される２つの平坦面２３４を有する。本実施例にあっては、中央の平坦面２３２を利用して外板２１０に固着されるが、両側の平坦面２３４を外板２１０に固着する構造とすることもできる。
【００１８】
また、外板２１０の内側には適当な間隔毎にユニット固定用骨材２５０がリベット等の接合部２２０により固着される。この骨材２５０は、例えば木材や剛性の高い断熱材などで作られる。さらに、外板２１０の内側にはスチレンフォーム２８０が接着される。
【００１９】
一方、真空断熱パネルユニット２６０は、金属やＦＲＰ製の内板２６２と真空断熱パネル２６５を型にセットした際に、発泡ウレタン２６４を注入してユニット化したものである。
以上のようにして作られた真空断熱パネルユニット２６０をリベットやボルト等の機械的接合部２２０によりユニット固定用骨材２５０に対して固着する。この際に、補強材２３０の平坦面２３４に接着剤２４０を塗布しておき、発泡ウレタン２６４と補強材１３０を接着する。
【００２０】
また、真空断熱パネルユニット２６０と外板２１０の間の空間には現場で発泡ウレタンフォーム２７０を注入して断熱効果の向上を図る。
本壁構造は以上のように構成してあるので、真空断熱パネル１６５は内板２６２の内側に固定されるので、損傷を受ける機会を削減することができる。
また、フォークリフトの爪等で外板が突き破られて真空断熱パネル２６５が損傷を受けた場合でも、この部分の真空断熱パネルユニット２６０のみを交換するだけで、断熱荷箱全体の断熱機能を回復することができるものである。
【００２１】
図６は本発明の断熱壁構造を示す説明図である。
全体を符号３００で示す壁構造は、金属やＦＲＰ製の外板３１０と、外板３１０の内側にリベット等の機械的接合部３２０を介して固着される補強材２３０を有する。
補強材１３０は、例えば断面が４辺形のもので、互いに対向する平坦面を有する。
【００２２】
また、外板３１０の内側には、適当な間隔毎にユニット固定用骨材３５０がリベット等の接合部３２０により固着される。この骨材３５０は、例えば木材や剛性の高い断熱材などで作られる。さらに、外板３１０の内側にはスチレンフォーム３８０が装着される。
【００２３】
一方、真空断熱パネルユニット３６０は、金属やＦＲＰ製の内板１６２と真空断熱パネル１６５を型にセットした際に、発泡ウレタン３６４を注入してユニット化したものである。
以上のようにして作られた真空断熱パネルユニット３６０をリベットやボルト等の機械的接合部３２０によりユニット固定用骨材３５０に対して固着する。この際に、補強材３３０の平坦面に接着剤３４０を塗布しておき、発泡ウレタン３６４と補強材３３０を接着する。
【００２４】
また、真空断熱パネルユニット３６０と外板３１０の間の空間には現場で発泡ウレタンフォーム３７０を注入して断熱効果の向上を図る。
本壁構造は以上のように構成してあるので、真空断熱パネル１６５は内板１６２の内側に固定されるので、損傷を受ける機会を削減することができる。
【００２５】
また、フォークリフトの爪等で内板が突き破られて真空断熱パネル３６５が損傷を受けた場合でも、この部分の真空断熱パネルユニット３６０のみを交換するだけで、断熱荷箱全体の断熱機能を回復することができるのである。
【００２６】
図７は本発明の断熱壁構造を示す説明図である。
全体を符号４００で示す壁構造は、金属やＦＲＰ製の外板４１０と、外板４１０の内側にリベット等の機械的接合部４２０を介して固着される補強材４３０を有する。補強材１３０は、例えば断面が四辺形のもので、互いに対向する平坦面を有する。
【００２７】
また、外板４１０の内側には、適当な間隔毎にユニット固定用骨材４５０がリベット等の接合部４２０により固着される。この骨材４５０は、例えば木材や剛性の高い断熱材などで作られる。
一方、真空断熱パネルユニット４６０、スラブ状の発泡スチレン４６４と真空断熱パネル４６５を接着剤４４０により接着した構成を有する。
以上のようにして作られた真空断熱パネルユニット４６０を接着剤４４０を介して補強材４３０に接着する。
【００２８】
また、真空断熱パネルユニット４６０と外板４１０の間の空間には、スラブ状の発泡スチレン４６４を挾んで断熱効果の向上を図る。そして、内板４９０は機械的接合部４２０によりユニット固定用骨材４５０に固着される。
本壁構造は以上のように構成してあるので、真空断熱パネル４６５は外板４１０と内板４９０の中間部に固定されるので、損傷を受ける機会を削減することができる。
【００２９】
また、フォークリフトの爪等で内板又は外板が突き破られて真空断熱パネル４６５が損傷を受けた場合でも、この部分の真空断熱パネルユニット４６０のみを交換するだけで、断熱荷箱全体の断熱機能を回復することができるのである。
【００３０】
【発明の効果】
本発明の断熱壁構造は以上のように、外板と内板の間に補強材を介して真空断熱パネルを配設する構造にあって、真空断熱パネルをユニット化して配設し、ユニット状の内板を取り外すことで、ユニットを交換する構成としたものである。したがって、破損してユニットのみを交換することで、断熱効果の低下を最少限に押えることができる。
【図面の簡単な説明】
【図１】車載用の断熱荷箱の構造を示す斜視図。
【図２】断熱壁の一般的な構造を示す断面図。
【図３】真空断熱パネルの断面構造を示す説明図。
【図４】本発明の断熱壁構造を示す断面図。
【図５】本発明の断熱壁構造を示す断面図。
【図６】本発明の断熱壁構造を示す断面図。
【図７】本発明の断熱壁構造を示す断面図。
【符号の説明】
１１０ 外板
１２０ リベット接合部
１３０ 補強材
１４０ 接着剤
１５０ ユニット固定用骨材
１６０ 真空断熱パネルユニット
１６２ 内板
１６５ 真空断熱パネル[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a heat insulating packing box for a vehicle equipped in a refrigerator car, a cold storage car, and the like, and particularly relates to a heat insulating wall structure of the heat insulating packing box.
[0002]
[Prior art]
FIG. 1 shows a general structure of a cold storage vehicle and a freezing vehicle to which the present invention is applied.
The vehicle 1 has a structure in which a heat insulating packing box 10 is mounted on a frame 5 of a vehicle body.
[0003]
FIG. 2 shows a cross-sectional structure of the wall member 20 constituting the heat insulating packing box, and a polystyrene foam or polyurethane foam plate material 30 is sandwiched between aluminum or FRP inner plates 24 as well as aluminum or FRP outer plates 22. A structure in which the adhesive was bonded with an adhesive 40 was used.
[0004]
As a request for this type of heat-insulated packing box, shortening of the pre-cooling time of the freezer of the freezer car and expansion of the internal volume are desired. Here, the pre-cooling time is a time for cooling the inside of the freezer to a predetermined temperature (low temperature) before loading the luggage.
The shortening needs to reduce the heat ingress from the outside air to the freezer. For this purpose, it is necessary to improve the heat insulation of the freezer wall. The expansion of the internal volume is particularly in the width direction. The outer width of the freezer is regulated by law. Therefore, the expansion of the internal dimensions requires a thinner heat insulating material.
As for the wall thinning, it is necessary to improve the heat insulating property of the freezer wall, assuming that the heat insulating performance is equivalent to the current one. Therefore, in order to satisfy these needs, as one method for improving the heat insulating property of the wall material, an application of a vacuum heat insulating panel having a lower thermal conductivity than the present foamed plastic foam can be considered.
[0005]
Vacuum insulation panels have already been adopted in some home appliance refrigerators. A vacuum heat insulation panel used in a home appliance refrigerator is obtained by placing a continuously foamed urethane foam in a bag made of an aluminum laminate film and sealing (sealing) it in a vacuum atmosphere. The refrigerator wall structure using the vacuum insulation panel is made of steel on the outer plate, ABS resin plate made by vacuum forming on the inner plate, and the vacuum insulation panel is fixed to the outer plate with hot melt adhesive between them. Independently foamed urethane foam is formed by in-situ foaming in the space between the vacuum heat insulating panel and the inner plate and between the outer plate and the inner plate. The outer plate, the inner plate, the aluminum laminate film, and the closed-cell foamed urethane foam are joined firmly by the self-adhesiveness of the urethane foam.
This type of vacuum heat insulation panel is disclosed in, for example, Japanese Patent Laid-Open No. 4-25785.
[0006]
FIG. 3 shows a cross-sectional structure of the vacuum heat insulating panel 50, in which a continuous foamed urethane foam 55 is filled in an aluminum laminate film 52 having a thickness of about 0.08 mm and sealed in a vacuum atmosphere.
[0007]
[Problems to be solved by the invention]
The heat insulation effect can be improved by inserting the vacuum heat insulation panel into the wall member of the vehicle heat insulation packing box. However, forklifts are often used for loading and unloading loads on a vehicle heat-insulated packing box, and there are cases in which a heat insulating wall is projected from a forklift claw and damaged. The heat insulation effect which this damage | wound penetrates the film of a vacuum heat insulation panel will fall.
Therefore, the present invention provides a wall structure for an insulated packing box that eliminates the above-described problems.
[0008]
[Means for Solving the Problems]
The heat insulating wall structure of the present invention includes, as basic means, an outer plate, a reinforcing material bonded to the inner side of the outer plate, an insulating unit fixing aggregate bonded to the inner side of the outer plate, an inner plate and a vacuum. A vacuum heat insulation panel unit formed by integrating the heat insulation panel with urethane foam and a joining means for detachably joining the vacuum heat insulation panel unit to the unit fixing aggregate are provided.
[0009]
Also, an outer plate, a reinforcing member bonded to the inner side of the outer plate, a styrene foam bonded to the inner side of the outer plate, an insulating unit fixing aggregate bonded to the inner side of the outer plate, and the inner plate And vacuum insulation panel unit formed with urethane foam, a vacuum insulation panel unit formed with foamed urethane, joint means for detachably joining the vacuum insulation panel unit to the unit fixing aggregate, and adhesion to the vacuum insulation panel unit and the reinforcing material And a foamed urethane foam filled between the outer plate and the vacuum heat insulation panel unit.
The vacuum heat insulation panel unit includes an inner plate, a vacuum heat insulation panel joined to the inner plate, and a block-shaped urethane foam surrounding the vacuum heat insulation panel.
[0010]
Furthermore, the heat insulating wall structure of the present invention includes an outer plate, a reinforcing member bonded to the inner side of the outer plate, an insulating unit fixing aggregate bonded to the inner side of the outer plate, and an aggregate for fixing the unit. A vacuum heat insulation panel unit formed by adhering a vacuum heat insulation panel and a foamed styrene slab disposed between, a foam styrene slab disposed between the vacuum heat insulation panel unit and the outer plate, a vacuum heat insulation panel unit, a reinforcing material, and An adhesive for adhering the foamed styrene slab and an inner plate removably joined to the unit fixing aggregate can also be provided.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 4 is an explanatory view showing a heat insulating wall structure of the present invention.
The wall structure generally indicated by reference numeral 100 includes a metal or FRP outer plate 110 and a reinforcing member 130 fixed to the inner side of the outer plate 110 via a mechanical joint 120 such as a rivet. The reinforcing material 130 has, for example, a central flat surface 132 and two flat surfaces 134 formed on both sides thereof via bent portions 133. In this embodiment, the central flat surface 132 is used to be fixed to the outer plate 110, but the flat surfaces 134 on both sides may be fixed to the outer plate 110.
[0012]
Further, the unit fixing aggregate 150 is fixed inside the outer plate 110 at appropriate intervals by a joint 120 such as a rivet. The aggregate 150 is made of, for example, wood or a highly rigid heat insulating material.
On the other hand, the vacuum heat insulation panel unit 160 is obtained by injecting urethane foam 164 into a unit when the metal or FRP inner plate 162 and the vacuum heat insulation panel 165 are set in a mold.
[0013]
The vacuum heat insulation panel has a structure in which two continuous aluminum laminate films are filled with a continuous foam material in a vacuum atmosphere.
Examples of the filler include, for example, organic foamed urethane foam and resin foam (polystyrene, polyethylene, polypropylene, phenol, urea, ABS, vinyl chloride, nylon, ethylene-vinyl acetate, rubber, etc.) and inorganic foam. Foam perlite, silica balloon, glass microballoon, silica, hydrous silicate, calcium silicate, diatomaceous earth, methylated silicate, magnesium carbonate, alumina silicate, carbon foam and fibrous wool (glass wool, asbestos, asbestos, ceramic fiber, cotton wool, polyester Wool, silica alumina wool, etc.) can be used.
[0014]
The vacuum heat insulation panel unit 160 made as described above is fixed to the unit fixing aggregate 150 by a mechanical joint 120 such as a rivet or a bolt. At this time, the adhesive 140 is applied to the flat surface 134 of the reinforcing material 130, and the vacuum heat insulating panel 165 and the reinforcing material 130 are bonded.
Adhesives include thermoplastic adhesives (vinyl acetate, acrylic, polyamide, polyester, polyurethane, etc.), thermosetting adhesives (amino, urea, melamine, phenol, resorcinol, xylene) , Furan, epoxy, urethane, acrylic, unsaturated polyester, etc.), hot melt adhesive, rubber adhesive, cyanoacrylate adhesive, synthetic water-soluble adhesive, emulsion adhesive, liquid polymer Adhesives and the like can be used, but urethane-based, epoxy-based adhesives and hot-melt adhesives that are thermosetting are particularly effective.
[0015]
In addition, urethane foam 170 is injected in the space between the vacuum heat insulation panel unit 160 and the outer plate 110 to improve the heat insulation effect.
Since the wall structure is configured as described above, the vacuum heat insulating panel 165 is fixed to the intermediate portion between the outer plate 110 and the inner plate 162, so that the chance of being damaged can be reduced.
[0016]
Even when the inner or outer plate is pierced by a forklift claw or the like and the vacuum heat insulation panel 165 is damaged, the heat insulation of the entire heat insulation packing box can be obtained by replacing only the vacuum heat insulation panel unit 160 of this portion. The function can be restored.
[0017]
FIG. 5 is an explanatory view showing a heat insulating wall structure of the present invention.
The wall structure generally indicated by reference numeral 200 has a metal or FRP outer plate 210 and a reinforcing member 230 fixed to the inner side of the outer plate 210 via a mechanical joint 220 such as a rivet. The reinforcing member 230 has, for example, a central flat surface 232 and two flat surfaces 234 formed on both sides thereof via bent portions 233. In the present embodiment, the central flat surface 232 is used to be fixed to the outer plate 210, but both flat surfaces 234 may be fixed to the outer plate 210.
[0018]
Further, the unit fixing aggregate 250 is fixed to the inner side of the outer plate 210 at appropriate intervals by a joint 220 such as a rivet. The aggregate 250 is made of, for example, wood or a highly rigid heat insulating material. Further, styrene foam 280 is bonded to the inside of the outer plate 210.
[0019]
On the other hand, the vacuum heat insulation panel unit 260 is obtained by injecting urethane foam 264 into a unit when the metal or FRP inner plate 262 and the vacuum heat insulation panel 265 are set in a mold.
The vacuum heat insulation panel unit 260 made as described above is fixed to the unit fixing aggregate 250 by a mechanical joint 220 such as a rivet or a bolt. At this time, the adhesive 240 is applied to the flat surface 234 of the reinforcing material 230 to bond the urethane foam 264 and the reinforcing material 130 together.
[0020]
In addition, urethane foam 270 is injected on site in the space between the vacuum heat insulation panel unit 260 and the outer plate 210 to improve the heat insulation effect.
Since the wall structure is configured as described above, the vacuum heat insulation panel 165 is fixed to the inner side of the inner plate 262, so that the chance of being damaged can be reduced.
Even if the outer panel is pierced by a forklift claw or the like and the vacuum insulation panel 265 is damaged, it is possible to restore the insulation function of the entire insulation box only by replacing the vacuum insulation panel unit 260 only in this part. Is something that can be done.
[0021]
FIG. 6 is an explanatory view showing a heat insulating wall structure of the present invention.
The wall structure generally indicated by reference numeral 300 includes an outer plate 310 made of metal or FRP, and a reinforcing member 230 fixed to the inner side of the outer plate 310 via a mechanical joint 320 such as a rivet.
The reinforcing member 130 has, for example, a quadrangular cross section and flat surfaces facing each other.
[0022]
Further, the unit fixing aggregate 350 is fixed to the inside of the outer plate 310 at appropriate intervals by a joint 320 such as a rivet. The aggregate 350 is made of, for example, wood or a highly rigid heat insulating material. Further, a styrene foam 380 is mounted inside the outer plate 310.
[0023]
On the other hand, the vacuum heat insulation panel unit 360 is obtained by injecting urethane foam 364 into a unit when the metal or FRP inner plate 162 and the vacuum heat insulation panel 165 are set in a mold.
The vacuum heat insulation panel unit 360 made as described above is fixed to the unit fixing aggregate 350 by a mechanical joint 320 such as a rivet or a bolt. At this time, the adhesive 340 is applied to the flat surface of the reinforcing material 330 to bond the urethane foam 364 and the reinforcing material 330 together.
[0024]
Further, urethane foam 370 is injected in the space between the vacuum heat insulation panel unit 360 and the outer plate 310 to improve the heat insulation effect.
Since the wall structure is configured as described above, the vacuum heat insulation panel 165 is fixed to the inner side of the inner plate 162, so that the chance of being damaged can be reduced.
[0025]
Even if the inner plate is pierced by a forklift claw or the like and the vacuum thermal insulation panel 365 is damaged, the thermal insulation function of the entire thermal insulation box can be restored by replacing only the vacuum thermal insulation panel unit 360 in this part. It can be done.
[0026]
FIG. 7 is an explanatory view showing a heat insulating wall structure of the present invention.
The wall structure generally indicated by reference numeral 400 includes a metal or FRP outer plate 410 and a reinforcing member 430 fixed to the inner side of the outer plate 410 via a mechanical joint 420 such as a rivet. The reinforcing member 130 has, for example, a quadrangular cross section and flat surfaces facing each other.
[0027]
Further, the unit fixing aggregate 450 is fixed to the inside of the outer plate 410 at appropriate intervals by a joint 420 such as a rivet. The aggregate 450 is made of, for example, wood or a highly heat-insulating material.
On the other hand, the vacuum heat insulation panel unit 460, the slab-shaped foamed styrene 464, and the vacuum heat insulation panel 465 are bonded with an adhesive 440.
The vacuum heat insulation panel unit 460 produced as described above is bonded to the reinforcing material 430 through the adhesive 440.
[0028]
Further, in the space between the vacuum heat insulation panel unit 460 and the outer plate 410, a slab-like foamed styrene 464 is sandwiched to improve the heat insulation effect. The inner plate 490 is fixed to the unit fixing aggregate 450 by the mechanical joint 420.
Since the wall structure is configured as described above, the vacuum heat insulation panel 465 is fixed to the intermediate portion between the outer plate 410 and the inner plate 490, so that the chance of damage can be reduced.
[0029]
Even when the inner or outer plate is pierced by a forklift claw or the like and the vacuum heat insulation panel 465 is damaged, the heat insulation of the entire heat insulation packing box can be obtained only by replacing the vacuum heat insulation panel unit 460 of this portion. The function can be restored.
[0030]
【The invention's effect】
As described above, the heat insulating wall structure of the present invention has a structure in which the vacuum heat insulating panel is disposed between the outer plate and the inner plate through the reinforcing material, and the vacuum heat insulating panel is arranged as a unit. The unit is replaced by removing the plate. Therefore, it is possible to minimize the decrease in the heat insulation effect by replacing only the unit due to damage.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the structure of an in-vehicle insulated box.
FIG. 2 is a cross-sectional view showing a general structure of a heat insulating wall.
FIG. 3 is an explanatory view showing a cross-sectional structure of a vacuum heat insulating panel.
FIG. 4 is a cross-sectional view showing a heat insulating wall structure of the present invention.
FIG. 5 is a sectional view showing a heat insulating wall structure of the present invention.
FIG. 6 is a sectional view showing a heat insulating wall structure of the present invention.
FIG. 7 is a sectional view showing a heat insulating wall structure of the present invention.
[Explanation of symbols]
110 Outer plate 120 Rivet joint 130 Reinforcing material 140 Adhesive 150 Unit fixing aggregate 160 Vacuum heat insulation panel unit 162 Inner plate 165 Vacuum heat insulation panel

Claims (4)

車体のフレーム上に搭載される断熱荷箱の壁構造であって、断熱荷箱は外板と、外板の内側に接合される補強材を有し、外板の内側に接合される断熱性のユニット固定用骨材と、内板と真空断熱パネルとを発泡ウレタンと共に一体化して形成される真空断熱パネルユニットと、真空断熱パネルユニットをユニット固定用骨材に着脱自在に接合する接合手段を備える断熱壁構造。 It is a wall structure of a heat insulating packing box mounted on a frame of a vehicle body, and the heat insulating packing box has an outer plate and a reinforcing member bonded to the inner side of the outer plate, and has a heat insulating property bonded to the inner side of the outer plate. A unit fixing aggregate, a vacuum heat insulating panel unit formed by integrating an inner plate and a vacuum heat insulating panel together with foamed urethane, and a joining means for removably connecting the vacuum heat insulating panel unit to the unit fixing aggregate. Insulated wall structure. 車体のフレーム上に搭載される断熱荷箱の壁構造であって、断熱荷箱は外板と、外板の内側に接合される補強材を有し、外板の内側に接着されるスチレンフォームと、外板の内側に接合される断熱性のユニット固定用骨材と、内板と真空断熱パネルとを発泡ウレタンと共に一体化して形成される真空断熱パネルユニットと、真空断熱パネルユニットをユニット固定用骨材に着脱自在に接合する接合手段と、真空断熱パネルユニットと補強材に接着する接着剤と、外板と真空断熱パネルユニットの間に充填される発泡ウレタンフォームを備える断熱壁構造。A wall structure of the heat insulating packing box mounted on a frame of a vehicle body, a heat insulating packing box has an outer plate, the reinforcing member is joined to the inside of the outer skin, styrene foam is adhered to the inside of the outer panel And a heat insulating unit fixing aggregate to be joined to the inside of the outer plate, a vacuum heat insulating panel unit formed by integrating the inner plate and the vacuum heat insulating panel with urethane foam, and the vacuum heat insulating panel unit. A heat insulating wall structure comprising: a joining means for removably joining to an aggregate, an adhesive for adhering to the vacuum heat insulating panel unit and the reinforcing material, and a foamed urethane foam filled between the outer plate and the vacuum heat insulating panel unit. 真空断熱パネルユニットは、内板と、内板に接合される真空断熱パネルと、真空断熱パネルを囲むブロック状の発泡ウレタンを有する請求項１又は２記載の断熱壁構造。The heat insulation wall structure according to claim 1 or 2, wherein the vacuum heat insulation panel unit includes an inner plate, a vacuum heat insulation panel joined to the inner plate, and a block-like urethane foam surrounding the vacuum heat insulation panel. 車体のフレーム上に搭載される断熱荷箱の壁構造であって、断熱荷箱は外板と、外板の内側に接合される補強材を有し、外板の内側に接合される断熱性のユニット固定用骨材と、ユニット固定用骨材の間に配設される真空断熱パネルと、発泡スチレンスラブを接着して構成した真空断熱パネルユニットと、真空断熱パネルユニットと外板の間に配設される発泡スチレンスラブと、真空断熱パネルユニットと、補強材および発泡スチレンスラブを接着する接着剤と、ユニット固定用骨材に着脱自在に接合される内板を備える断熱壁構造。 It is a wall structure of a heat insulating packing box mounted on a frame of a vehicle body, and the heat insulating packing box has an outer plate and a reinforcing member bonded to the inner side of the outer plate, and has a heat insulating property bonded to the inner side of the outer plate. Unit fixing aggregate, vacuum insulating panel disposed between unit fixing aggregates, vacuum insulating panel unit formed by adhering foamed styrene slab, and disposed between vacuum insulating panel unit and outer plate A heat insulating wall structure comprising a foamed styrene slab, a vacuum heat insulating panel unit, an adhesive for bonding the reinforcing material and the foamed styrene slab, and an inner plate removably joined to the unit fixing aggregate.
JP29236597A 1997-10-24 1997-10-24 Insulated wall structure Expired - Fee Related JP3870511B2 (en)

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KR100762948B1 (en) 2007-02-07 2007-10-04 마노자동차(주) Top car of freezing and method
KR101357643B1 (en) * 2012-10-10 2014-02-04 재단법인 한국탄소융합기술원 Of forzen van siedwall insulation panel structure
KR101486044B1 (en) * 2013-04-16 2015-01-27 (주)에코메이텍 Panel for refrigerator-freezer
KR101365419B1 (en) * 2013-09-26 2014-02-19 김수덕 Refrigeration container for special vehicle
CN103692740B (en) * 2013-12-11 2017-01-18 华南农业大学 Refrigerated container body, composite insulation panel and manufacturing method of composite insulation panel
JP6439256B2 (en) * 2014-03-06 2018-12-19 大日本印刷株式会社 Insulated container and method for repairing insulated container
KR102545719B1 (en) * 2018-06-27 2023-06-21 엘지전자 주식회사 Vacuum adiabatic body and refrigerator
JP7420626B2 (en) * 2020-03-31 2024-01-23 エア・ウォーター株式会社 Refrigerated car
CN111578045B (en) * 2020-05-22 2022-01-28 上海海事大学 Multifunctional composite vacuum insulation panel and manufacturing and packaging method thereof

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