JP2016173143A - Heat insulation material, refrigerator, and method for manufacturing heat insulation material - Google Patents
Heat insulation material, refrigerator, and method for manufacturing heat insulation material Download PDFInfo
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Abstract
Description
本発明の実施形態は、断熱材、この断熱材を構成するコア材、この断熱材を備える冷蔵庫、並びに、この断熱材の製造方法に関する。 Embodiments of the present invention relate to a heat insulating material, a core material constituting the heat insulating material, a refrigerator including the heat insulating material, and a method for manufacturing the heat insulating material.
従来より、断熱機能を有するコア材を外包材内に収容することで構成される断熱材が考えられている（例えば、特許文献１参照）。しかし、従来の断熱材は、比較的硬くて自由な成形が困難なコア材を外包材内に収容するものである。そのため、平板状の断熱材は容易に得ることができるが、複雑な形状、例えば三次元的な形状を有する断熱材を得ることは困難である。 Conventionally, the heat insulating material comprised by accommodating the core material which has a heat insulation function in an outer packaging material is considered (for example, refer patent document 1). However, the conventional heat insulating material accommodates the core material, which is relatively hard and difficult to be freely molded, in the outer packaging material. Therefore, although a flat heat insulating material can be obtained easily, it is difficult to obtain a heat insulating material having a complicated shape, for example, a three-dimensional shape.
本実施形態は、全体の形状を自由に設計することができる断熱材、この断熱材を備える冷蔵庫、並びに、全体の形状を自由に設計することができる断熱材の製造方法を提供する。 This embodiment provides the heat insulating material which can design the whole shape freely, the refrigerator provided with this heat insulating material, and the manufacturing method of the heat insulating material which can design the whole shape freely.
本実施形態に係る断熱材は、繊維により構成されるコア材と、前記コア材を構成するものであって、前記コア材の形状を維持する支持材と、を備える。前記支持材は、前記コア材の断熱面に対応する断熱面対応部を有し、且つ、この断熱面対応部のうち少なくとも２箇所における法線方向が相互に交わる形状となっている。 The heat insulating material which concerns on this embodiment is provided with the core material comprised with a fiber, and the support material which comprises the said core material and maintains the shape of the said core material. The support member has a heat insulating surface corresponding portion corresponding to the heat insulating surface of the core material, and has a shape in which normal directions in at least two locations of the heat insulating surface corresponding portion intersect each other.
本実施形態に係る断熱材の製造方法は、繊維により構成されるコア材を備える断熱材を製造する方法であって、前記外包材内に前記コア材を構成する支持材を収容する支持材収容行程を含む。前記支持材は、前記コア材の形状を維持するものであって、前記コア材の断熱面に対応する断熱面対応部を有し、且つ、この断熱面対応部のうち少なくとも２箇所における法線方向が相互に交わる形状となっている。 The method for manufacturing a heat insulating material according to the present embodiment is a method for manufacturing a heat insulating material including a core material composed of fibers, and includes a support material accommodation that accommodates a support material constituting the core material in the outer packaging material. Including the process. The support material maintains the shape of the core material, has a heat insulating surface corresponding portion corresponding to the heat insulating surface of the core material, and is normal to at least two of the heat insulating surface corresponding portions. It has a shape where the directions cross each other.
以下、一実施形態について図面を参照しながら説明する。図１に例示する断熱材１０は、その主体部を構成するコア材１１を外包材１２内に収容した構成である。コア材１１は、繊維１３と支持材１４を備える。コア材１１は、断熱面１１ａを有する。この断熱面１１ａは、断熱材１０が取り付けられる対象物、例えば冷蔵庫の内部あるいは外部に対面する面部であり、取付対象物の内部と外部との間で断熱機能を発揮する面部である。また、図２に例示する断熱材２０は、その主体部を構成するコア材２１を外包材２２内に収容した構成である。コア材２１は、繊維２３と支持材２４を備える。コア材２１は、断熱面２１ａを有する。この断熱面２１ａは、断熱材２０が取り付けられる対象物の内部あるいは外部に対面する面部であり、取付対象物の内部と外部との間で断熱機能を発揮する面部である。外包材１２，２２は、断熱材１０，２０の表面部を構成する。外包材１２，２２は、例えば１層または２層以上の樹脂フィルムに金属または金属酸化物を蒸着させたいわゆるラミネート材であり、気体の透過性を無くした気密性を有する。この場合、外包材１２，２２は、コア材１１，２１を収容可能な袋状に構成されている。 Hereinafter, an embodiment will be described with reference to the drawings. A heat insulating material 10 illustrated in FIG. 1 has a configuration in which a core material 11 constituting a main portion thereof is accommodated in an outer packaging material 12. The core material 11 includes fibers 13 and a support material 14. The core material 11 has a heat insulating surface 11a. The heat insulating surface 11a is a surface portion that faces an object to which the heat insulating material 10 is attached, for example, the inside or outside of the refrigerator, and is a surface portion that exhibits a heat insulating function between the inside and the outside of the attachment object. In addition, the heat insulating material 20 illustrated in FIG. 2 has a configuration in which a core material 21 that constitutes a main part thereof is accommodated in an outer packaging material 22. The core material 21 includes fibers 23 and a support material 24. The core material 21 has a heat insulating surface 21a. The heat insulating surface 21a is a surface portion that faces the inside or the outside of the object to which the heat insulating material 20 is attached, and is a surface portion that exhibits a heat insulating function between the inside and the outside of the attachment object. The outer packaging materials 12 and 22 constitute the surface portions of the heat insulating materials 10 and 20. The outer packaging materials 12 and 22 are so-called laminate materials in which a metal or metal oxide is vapor-deposited on one or more resin films, for example, and have airtightness that eliminates gas permeability. In this case, the outer packaging materials 12 and 22 are configured in a bag shape that can accommodate the core materials 11 and 21.
コア材１１，２１を収容した外包材１２，２２は、内部が真空に近い圧力まで減圧された後、密封される。これにより、コア材１１，２１を収容した外包材１２，２２は、真空断熱材１０，２０として形成される。また、このように構成される断熱材１０，２０において、支持材１４，２４は繊維１３，２３により覆われる。また、断熱材１０，２０においては、外包材１２，２２と支持材１４，２４との間に繊維１３，２３が介在している。よって、支持材１４，２４は、外包材１２，２２の内面に接していない。 The outer packaging materials 12 and 22 containing the core materials 11 and 21 are sealed after the inside is depressurized to a pressure close to vacuum. Thereby, the outer packaging materials 12 and 22 containing the core materials 11 and 21 are formed as the vacuum heat insulating materials 10 and 20. Further, in the heat insulating materials 10 and 20 configured as described above, the support materials 14 and 24 are covered with the fibers 13 and 23. In the heat insulating materials 10 and 20, the fibers 13 and 23 are interposed between the outer packaging materials 12 and 22 and the support materials 14 and 24. Therefore, the support materials 14 and 24 are not in contact with the inner surfaces of the outer packaging materials 12 and 22.
繊維１３，２３は、ランダムに絡み合った樹脂繊維で形成されている。この場合、繊維１３，２３は、エレクトロスピニング法で成形されている。エレクトロスピニング法で生成された繊維１３，２３は、外径が０．１ｎｍ〜１０μｍ程度となる細い繊維となり、且つ、長さが外径の例えば１０００倍以上となる長い繊維となる。また、エレクトロスピニング法で生成された繊維１３，２３は、全体的に直線状ではなく、ランダムに湾曲した縮れ形状をなす。そのため、繊維同士の絡み合いが多くなる。 The fibers 13 and 23 are formed of resin fibers that are randomly intertwined. In this case, the fibers 13 and 23 are formed by an electrospinning method. The fibers 13 and 23 produced by the electrospinning method become thin fibers having an outer diameter of about 0.1 nm to 10 μm, and become long fibers whose length is, for example, 1000 times or more of the outer diameter. In addition, the fibers 13 and 23 generated by the electrospinning method are not linear but have a curving shape that is randomly curved. Therefore, the entanglement between the fibers increases.
この場合、繊維１３，２３は、ガラスよりも密度の小さな有機系のポリマーで形成されている。繊維１３，２３をガラスよりも密度の小さなポリマーで形成することにより繊維１３，２３の軽量化を図ることができる。繊維１３，２３は、ポリスチレン、ポリカーボネート、ポリメタクリル酸メチル、ポリプロピレン、ポリエチレン、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリアミド、ポリオキシメチレン、ポリアミドイミド、ポリイミド、ポリサルファン、ポリエーテルサルファン、ポリエーテルイミド、ポリエーテルエーテルケトン、ポリフェニレンサルファイド、変性ポリフェニレンエーテル、シンジオタクチックポリスチレン、液晶ポリマー、ユリア樹脂、不飽和ポリエステル、ポリフェノール、メラミン樹脂、エポキシ樹脂やこれらを含む共重合体などから選択される１種類、または２種類以上のポリマーの混紡によって形成することができる。 In this case, the fibers 13 and 23 are formed of an organic polymer having a density lower than that of glass. By forming the fibers 13 and 23 with a polymer having a density lower than that of the glass, the weight of the fibers 13 and 23 can be reduced. The fibers 13 and 23 are polystyrene, polycarbonate, polymethyl methacrylate, polypropylene, polyethylene, polyethylene terephthalate, polybutylene terephthalate, polyamide, polyoxymethylene, polyamideimide, polyimide, polysulfane, polyethersulfane, polyetherimide, One kind selected from polyether ether ketone, polyphenylene sulfide, modified polyphenylene ether, syndiotactic polystyrene, liquid crystal polymer, urea resin, unsaturated polyester, polyphenol, melamine resin, epoxy resin and copolymers containing these, or It can be formed by blending two or more types of polymers.
繊維１３，２３をエレクトロスピニング法で形成する場合、上記ポリマーを溶液化する。溶媒としては、例えば、イソプロパノール、エチレングリコール、シクロヘキサノン、ジメチルホルムアミド、アセトン、酢酸エチル、ジメチルアセトアミド、Ｎ−メチル−２−ピロリドン、ヘキサン、トルエン、キシレン、メチルエチルケトン、ジエチルケトン、酢酸ブチル、テトラヒドロフラン、ジオキサン、ピリジンなどの揮発性の有機溶剤や水を用いることができる。また、溶媒としては上記溶媒より選ばれる一種でもよく、また、複数種類が混在してもよい。なお、本実施形態に適用可能な溶媒は、上記溶媒に限定されるものではない。上記溶媒は、あくまでも例示である。 When the fibers 13 and 23 are formed by an electrospinning method, the polymer is made into a solution. Examples of the solvent include isopropanol, ethylene glycol, cyclohexanone, dimethylformamide, acetone, ethyl acetate, dimethylacetamide, N-methyl-2-pyrrolidone, hexane, toluene, xylene, methyl ethyl ketone, diethyl ketone, butyl acetate, tetrahydrofuran, dioxane, A volatile organic solvent such as pyridine or water can be used. Further, the solvent may be one kind selected from the above solvents, or a plurality of kinds may be mixed. In addition, the solvent applicable to this embodiment is not limited to the said solvent. The said solvent is an illustration to the last.
繊維１３，２３をエレクトロスピニング法で形成する場合、繊維同士の絡み合いを多くすることができるから、紡糸すると同時に、不織布状の繊維シートを形成することが可能である。また、繊維１３，２３をエレクトロスピニング法で形成することによりマイクロオーダからナノオーダの繊維径を得ることができるから、１枚あたりの繊維シートの厚みを非常に薄くすることが可能である。 When the fibers 13 and 23 are formed by the electrospinning method, the entanglement between the fibers can be increased, so that it is possible to form a non-woven fiber sheet simultaneously with the spinning. In addition, since the fibers 13 and 23 are formed by an electrospinning method, the fiber diameter can be obtained from the micro-order to the nano-order, so that the thickness of the fiber sheet per sheet can be extremely reduced.
なお、絡み合った繊維の間の空隙の体積を小さくすることで空隙の数が増加し断熱性がより良くなる。また、繊維１３，２３を多数の空隙を有する構造とすることで、軽量化を図ることもできる。そのため、繊維１３，２３の繊維径は約５μｍ以下とすることが好ましく、さらに好ましくは１μｍ以下、つまりナノオーダの繊維径とすることが好ましい。また、繊維１３，２３は、例えばケイ素酸化物、金属の水酸化物、炭酸塩、硫酸塩、ケイ酸塩など各種の無機フィラーを添加してもよい。繊維１３，２３に無機フィラーを添加することにより、断熱性を維持しつつ強度の向上を図ることができる。添加する無機フィラーとしては、例えば、ウォラスナイト、チタン酸カリウム、ゾノトライト、石膏繊維、アルミニウムポレート、ＭＯＳ（塩基性硫酸マグネシウム）、アラミド繊維、炭素繊維、ガラス繊維、タルク、マイカ、ガラスフレークなどが考えられる。 In addition, by decreasing the volume of the gap between the entangled fibers, the number of the gaps is increased, and the heat insulation is improved. Moreover, weight reduction can also be achieved by making the fiber 13 and 23 into a structure which has many space | gap. For this reason, the fiber diameter of the fibers 13 and 23 is preferably about 5 μm or less, more preferably 1 μm or less, that is, a nano-order fiber diameter. The fibers 13 and 23 may contain various inorganic fillers such as silicon oxide, metal hydroxide, carbonate, sulfate, and silicate. By adding an inorganic filler to the fibers 13 and 23, strength can be improved while maintaining heat insulation. Examples of the inorganic filler to be added include wollastonite, potassium titanate, zonotlite, gypsum fiber, aluminum porate, MOS (basic magnesium sulfate), aramid fiber, carbon fiber, glass fiber, talc, mica, glass flake, etc. It is done.
支持材１４は、例えばアクリル系の樹脂材料で構成されるものであり、真空に耐え得る強度を有し、断熱材１０のコア材１１の形状を維持する機能を有する。また、支持材１４は、多数の空隙を有する構成となっており、断熱性を備えた構成となっている。この場合、支持材１４は、２つの直方体状の部位を各部位の端部にて連結したような形状となっており、従って、断面がＬ字状をなす。 The support material 14 is made of, for example, an acrylic resin material, has a strength that can withstand vacuum, and has a function of maintaining the shape of the core material 11 of the heat insulating material 10. In addition, the support member 14 has a structure having a large number of voids and has a heat insulating property. In this case, the support member 14 has a shape in which two rectangular parallelepiped parts are connected at the end of each part, and thus the cross section is L-shaped.
図３に例示するように、支持材１４は、コア材１１に形成される断熱面１１ａに対応する断熱面対応部１４ａを有する。この断熱面対応部１４ａは、繊維１３を介してコア材１１の断熱面１１ａに内側から対向する。そして、支持材１４は、この断熱面対応部１４ａのうち少なくとも２箇所における法線方向が相互に交わる形状となっている。この場合、断熱面対応部１４ａは、２つの面部１４ａ１，１４ａ２からなる。この場合、２つの面部１４ａ１，１４ａ２が相互に直角となるように接続されることで、Ｌ字状の１つの断熱面対応部１４ａが形成されている。そして、この断熱面対応部１４ａが対向する断熱面１１ａもＬ字状となる。そして、断熱面対応部１４ａは、一方の面部１４ａ１の法線方向Ｎ１と他方の面部１４ａ２の法線方向Ｎ２とが相互に交わる構成となっている。 As illustrated in FIG. 3, the support member 14 has a heat insulating surface corresponding portion 14 a corresponding to the heat insulating surface 11 a formed on the core material 11. The heat insulation surface corresponding part 14 a faces the heat insulation surface 11 a of the core material 11 from the inside through the fibers 13. And the support material 14 becomes a shape where the normal line direction in at least two places among this heat insulation surface corresponding | compatible parts 14a crosses mutually. In this case, the heat insulation surface corresponding | compatible part 14a consists of two surface parts 14a1 and 14a2. In this case, the two surface portions 14a1 and 14a2 are connected so as to be perpendicular to each other, thereby forming one L-shaped heat insulating surface corresponding portion 14a. And the heat insulation surface 11a which this heat insulation surface corresponding | compatible part 14a opposes also becomes L shape. And the heat insulation surface corresponding | compatible part 14a becomes a structure where the normal line direction N1 of one surface part 14a1 and the normal line direction N2 of the other surface part 14a2 mutually cross.
一方、支持材２４は、例えばアクリル系の樹脂材料で構成されるものであり、真空に耐え得る強度を有し、断熱材２０のコア材２１の形状を維持する機能を有する。また、支持材２４は、多数の空隙を有する構成となっており、断熱性を備えた構成となっている。この場合、支持材２４は、断面が円弧状をなす。 On the other hand, the support member 24 is made of, for example, an acrylic resin material, has a strength that can withstand vacuum, and has a function of maintaining the shape of the core material 21 of the heat insulating material 20. Further, the support member 24 has a structure having a large number of voids and has a heat insulating property. In this case, the support member 24 has an arc shape in cross section.
図４に例示するように、支持材２４は、コア材２１に形成される断熱面２１ａに対応する断熱面対応部２４ａを有する。この断熱面対応部２４ａは、繊維２３を介してコア材２１の断熱面２１ａに内側から対向する。そして、支持材２４は、この断熱面対応部２４ａのうち少なくとも２箇所における法線方向が相互に交わる形状となっている。この場合、断熱面対応部２４ａは、曲面２４ａ１を有する。そして、断熱面対応部２４ａは、この曲面２４ａ１のうち少なくとも２箇所における法線方向Ｎ１，Ｎ２が相互に交わる構成となっている。 As illustrated in FIG. 4, the support member 24 includes a heat insulating surface corresponding portion 24 a corresponding to the heat insulating surface 21 a formed on the core material 21. The heat insulating surface corresponding part 24 a faces the heat insulating surface 21 a of the core material 21 from the inside through the fibers 23. And the support material 24 becomes a shape where the normal line direction in at least two places among this heat insulation surface corresponding | compatible part 24a crosses mutually. In this case, the heat insulation surface corresponding part 24a has the curved surface 24a1. And the heat insulation surface corresponding | compatible part 24a becomes a structure where the normal line directions N1 and N2 in at least two places among this curved surface 24a1 mutually cross.
また、支持材１４，２４の角部は、丸みを帯びた形状となっている。そのため、例えば、支持材１４，２４を外包材１２，２２内に挿入する際や、支持材１４，２４を収容した外包材１２，２２内を減圧する際に、外包材１２，２２のうち支持材１４，２４の角部に対向する部分に応力が集中してしまうことを防止することができる。よって、外包材１２，２２の破れや破損を回避することができる。また、外包材１２，２２内において支持材１４，２４の角部の周辺部分をより多くの繊維１３，２３で覆うことにより、同じく、外包材１２，２２の破れや破損を回避することができる。 The corners of the support members 14 and 24 are rounded. Therefore, for example, when the support materials 14 and 24 are inserted into the outer packaging materials 12 and 22 or when the pressure inside the outer packaging materials 12 and 22 containing the support materials 14 and 24 is reduced, the support materials 12 and 22 are supported. It is possible to prevent stress from concentrating on the portions facing the corners of the materials 14 and 24. Therefore, tearing and breakage of the outer packaging materials 12 and 22 can be avoided. Further, by covering the peripheral portions of the corners of the support materials 14 and 24 with more fibers 13 and 23 in the outer packaging materials 12 and 22, similarly, the outer packaging materials 12 and 22 can be prevented from being torn or damaged. .
本実施形態に係る断熱材１０，２０によれば、コア材１１，２１の一部を構成し当該コア材１１，２１の形状を維持する支持材１４，２４は、断熱面１１ａ，２１ａに対応する断熱面対応部１４ａ，２４ａのうち少なくとも２箇所における法線方向が相互に交わる形状となっている。即ち、支持材１４，２４は、平板状ではなく三次元的な形状を有する。この構成によれば、三次元的な形状を有する支持材１４，２４によりコア材１１，２１の形状が支持されるので、断熱材１０，２０全体としての形状を三次元的な形状で維持することができる。従って、支持材１４，２４の形状を適宜設計することにより、断熱材１０，２０全体の形状を、断熱材１０，２０の取付対象に応じて自由に設計することができる。 According to the heat insulating materials 10 and 20 according to the present embodiment, the support materials 14 and 24 that constitute a part of the core materials 11 and 21 and maintain the shape of the core materials 11 and 21 correspond to the heat insulating surfaces 11a and 21a. The normal direction in at least two places of the heat insulating surface corresponding parts 14a and 24a to be crossed each other. That is, the support members 14 and 24 have a three-dimensional shape instead of a flat plate shape. According to this configuration, since the shapes of the core materials 11 and 21 are supported by the support materials 14 and 24 having a three-dimensional shape, the shape of the heat insulating materials 10 and 20 as a whole is maintained in a three-dimensional shape. be able to. Therefore, by appropriately designing the shapes of the support members 14 and 24, the overall shape of the heat insulating materials 10 and 20 can be freely designed according to the attachment target of the heat insulating materials 10 and 20.
次に、上述した断熱材１０，２０における繊維１３，２３の具体的な構成例について説明する。図５に例示する断熱材１０，２０は、繊維１３，２３が複数の繊維シート１３ａ，２３ａを構成しており、これら複数の繊維シート１３ａ，２３ａが支持材１４，２４の周囲に積層された構成である。このとき、繊維シート１３ａ，２３ａの積層枚数は、少なくとも数百枚以上あるいは数千枚以上とするとよい。また、図６に例示する断熱材１０，２０は、繊維１３，２３が長尺な繊維シート１３ｃ，２３ｃを構成しており、その繊維シート１３ｃ，２３ｃが支持材１４，２４の周囲に巻き付けられた構成である。このとき、繊維シート１３ｃ，２３ｃの巻回数は、少なくとも１００巻き以上とするとよい。また、図７に例示する断熱材１０，２０は、繊維１３，２３が、支持材１４，２４に直接成膜された繊維膜１３ｄ，２３ｄとして備えられている構成である。このとき、繊維膜１３ｄの膜厚は、少なくとも繊維シート１３ａ，２３ａの１００枚分あるいは繊維シート１３ｃ，２３ｃの１００巻き分に相当する厚さとするとよい。このように、繊維１３，２３の具体的な構成としては、種々の構成を採用することができる。要は、支持材１４，２４が全体的にあるいは部分的に繊維１３，２３により覆われる構成であれば、種々の構成を採用することができる。 Next, a specific configuration example of the fibers 13 and 23 in the above-described heat insulating materials 10 and 20 will be described. In the heat insulating materials 10 and 20 illustrated in FIG. 5, the fibers 13 and 23 constitute a plurality of fiber sheets 13 a and 23 a, and the plurality of fiber sheets 13 a and 23 a are laminated around the support materials 14 and 24. It is a configuration. At this time, the number of laminated fiber sheets 13a and 23a is preferably at least several hundreds or thousands or more. Further, in the heat insulating materials 10 and 20 illustrated in FIG. 6, the fibers 13 and 23 constitute long fiber sheets 13 c and 23 c, and the fiber sheets 13 c and 23 c are wound around the support materials 14 and 24. It is a configuration. At this time, the number of windings of the fiber sheets 13c and 23c is preferably at least 100 or more. Moreover, the heat insulating materials 10 and 20 illustrated in FIG. 7 have a configuration in which the fibers 13 and 23 are provided as fiber films 13 d and 23 d formed directly on the support materials 14 and 24. At this time, the film thickness of the fiber film 13d is preferably set to a thickness corresponding to at least 100 sheets of the fiber sheets 13a and 23a or 100 turns of the fiber sheets 13c and 23c. Thus, various configurations can be employed as the specific configurations of the fibers 13 and 23. In short, as long as the support members 14 and 24 are entirely or partially covered with the fibers 13 and 23, various configurations can be adopted.
次に、上述した断熱材１０，２０の製造方法の一例について説明する。ここでは、２つの製造方法を説明する。
（収容行程→被覆行程型の製造方法）
図８に例示するように、この製造方法では、まず、外包材１２，２２内に支持材１４，２４を収容する（Ａ１）。そして、この支持材収容行程の後に、外包材１２，２２内に収容された支持材１４，２４を繊維１３，２３により覆う（Ａ２）。即ち、この製造方法では、外包材１２，２２内においてコア材１１，２１を形成する。この場合、外包材１２，２２内に収容された支持材１４，２４に、繊維シート１３ｃ，２３ｃを巻き付けること、繊維膜１３ｄ，２３ｄを直接成膜すること、は困難である。
Next, an example of the manufacturing method of the heat insulating materials 10 and 20 described above will be described. Here, two manufacturing methods will be described.
(Containment process-> coating process type manufacturing method)
As illustrated in FIG. 8, in this manufacturing method, first, the support materials 14 and 24 are accommodated in the outer packaging materials 12 and 22 (A1). And after this support material accommodation process, the support materials 14 and 24 accommodated in the outer packaging materials 12 and 22 are covered with the fibers 13 and 23 (A2). That is, in this manufacturing method, the core materials 11 and 21 are formed in the outer packaging materials 12 and 22. In this case, it is difficult to wind the fiber sheets 13c and 23c and directly form the fiber films 13d and 23d around the support materials 14 and 24 accommodated in the outer packaging materials 12 and 22.
そのため、被覆行程では、外包材１２，２２と支持材１４，２４との間の隙間に複数の繊維シート１３ａ，２３ａを積層させることで、支持材１４，２４を繊維１３，２３により覆うことが好ましい。なお、繊維シート１３ａ，２３ａは、外包材１２，２２内に１枚ずつ挿入してもよいし、２枚以上の複数枚を同時に挿入してもよい。また、断熱材１０，２０を真空断熱材として製造するのであれば、被覆行程の後に、外包材１２，２２内を真空化する真空化行程が行われる。 Therefore, in the covering process, the support materials 14 and 24 can be covered with the fibers 13 and 23 by laminating the plurality of fiber sheets 13a and 23a in the gaps between the outer packaging materials 12 and 22 and the support materials 14 and 24. preferable. The fiber sheets 13a and 23a may be inserted one by one into the outer packaging materials 12 and 22, or a plurality of two or more sheets may be inserted simultaneously. Moreover, if the heat insulating materials 10 and 20 are manufactured as a vacuum heat insulating material, a vacuuming step for evacuating the outer packaging materials 12 and 22 is performed after the covering step.
（被覆行程→収容行程型の製造方法）
図９に例示するように、この製造方法では、まず、支持材１４，２４を繊維１３，２３により覆う（Ｂ１）。そして、この被覆行程の後に、繊維１３，２３により被覆された支持材１４，２４、つまりコア材１１，２１を外包材１２，２２内に収容する（Ｂ２）。即ち、この製造方法では、外包材１２，２２外においてコア材１１，２１を形成し、その後、そのコア材１１，２１を外包材１２，２２内に収容する。この場合、外包材１２，２２内に収容されていない支持材１４，２４に、繊維シート１３ｃ，２３ｃを巻き付けること、繊維膜１３ｄ，２３ｄを直接成膜すること、は容易である。
(Covering process → production process of accommodation process type)
As illustrated in FIG. 9, in this manufacturing method, first, the support members 14 and 24 are covered with the fibers 13 and 23 (B1). Then, after this covering step, the supporting members 14 and 24 covered with the fibers 13 and 23, that is, the core members 11 and 21 are accommodated in the outer packaging materials 12 and 22 (B2). That is, in this manufacturing method, the core materials 11 and 21 are formed outside the outer packaging materials 12 and 22, and then the core materials 11 and 21 are accommodated in the outer packaging materials 12 and 22. In this case, it is easy to wind the fiber sheets 13c and 23c and directly form the fiber films 13d and 23d around the support materials 14 and 24 not accommodated in the outer packaging materials 12 and 22.
そのため、被覆行程では、繊維シート１３ｃ，２３ｃを支持材１４，２４の周囲に巻き付ける手法、あるいは、支持材１４，２４に繊維膜１３ｄ，２３ｄを直接成膜する手法を採用することが可能である。また、支持材１４，２４に繊維シート１３ａ，２３ａを積層させることも可能である。よって、支持材１４，２４に繊維シート１３ａ，２３ａを積層する手法に、繊維シート１３ｃ，２３ｃを支持材１４，２４の周囲に巻き付ける手法または支持材１４，２４に繊維膜１３ｄ，２３ｄを直接成膜する手法、あるいは、その双方の手法を組み合わせることも可能である。また、断熱材１０，２０を真空断熱材として製造するのであれば、支持材収容行程の後に、外包材１２，２２内を真空化する真空化行程が行われる。 Therefore, in the coating process, it is possible to employ a technique of winding the fiber sheets 13c and 23c around the support materials 14 and 24, or a technique of directly forming the fiber films 13d and 23d on the support materials 14 and 24. . Further, the fiber sheets 13a and 23a can be laminated on the support members 14 and 24. Therefore, the fiber sheets 13a and 23a are laminated on the support materials 14 and 24, the fiber sheets 13c and 23c are wound around the support materials 14 and 24, or the fiber films 13d and 23d are directly formed on the support materials 14 and 24. It is also possible to combine the film forming method or both methods. Moreover, if the heat insulating materials 10 and 20 are manufactured as a vacuum heat insulating material, a vacuuming process for evacuating the outer packaging materials 12 and 22 is performed after the support material housing process.
以上は、断熱材１０，２０の構成の一例および製造方法の一例について説明した。次に、上述した本実施形態に係る思想を冷蔵庫に適用する場合の一実施形態ついて説明する。即ち、図１０に例示するように、冷蔵庫用の支持材３４は、一面が開放したほぼ矩形の容器状をなす。この支持材３４は、複数の板状の断熱材を組み合わせたものではなく、１つの分離不能な部品として構成されたものである。 The example of the configuration of the heat insulating materials 10 and 20 and the example of the manufacturing method have been described above. Next, an embodiment in which the idea according to this embodiment described above is applied to a refrigerator will be described. That is, as illustrated in FIG. 10, the support material 34 for the refrigerator has a substantially rectangular container shape with one surface open. The support material 34 is not a combination of a plurality of plate-like heat insulating materials, but is configured as one inseparable part.
そして、図１１に例示するように、袋状の外包材３２内に、繊維３３および支持材３４からなるコア材３１を収容あるいは形成し、内部を真空に近い圧力まで減圧して密封する。これにより、一面が開放したほぼ矩形の容器状をなす断熱材３０を形成する。そして、図１２に例示するように、この断熱材３０の外側に例えば金属製の外板４０を取り付け、また、断熱材３０の内側に例えば樹脂製の内板４１を取り付ける。これにより、冷蔵庫の本体部を構成する断熱箱体４０を形成する。そして、この断熱箱体４０に、図示しない仕切り板や扉などを取り付けることにより、冷蔵庫が製造される。この冷蔵庫によれば、複数の断熱パネルを組み合わせることにより断熱材３０を構成するのではなく、断熱材３０を分離不能な１つの部材として構成した。従って、熱のリークが発生しにくく、極めて断熱性能の良い冷蔵庫を得ることができる。 Then, as illustrated in FIG. 11, the core material 31 composed of the fibers 33 and the support material 34 is accommodated or formed in the bag-like outer packaging material 32, and the inside is reduced to a pressure close to vacuum and sealed. Thereby, the heat insulating material 30 which makes the substantially rectangular container shape which one surface opened is formed. Then, as illustrated in FIG. 12, for example, a metal outer plate 40 is attached to the outside of the heat insulating material 30, and for example, a resin inner plate 41 is attached to the inner side of the heat insulating material 30. Thereby, the heat insulation box 40 which comprises the main-body part of a refrigerator is formed. And the refrigerator is manufactured by attaching the partition plate, the door, etc. which are not illustrated to this heat insulation box 40. FIG. According to this refrigerator, the heat insulating material 30 is not configured by combining a plurality of heat insulating panels, but the heat insulating material 30 is configured as one member that cannot be separated. Accordingly, it is possible to obtain a refrigerator that is unlikely to cause heat leakage and has extremely good heat insulation performance.
なお、ここでは、断熱材３０を分離不能な１つの部材として構成することにより、断熱箱体４０の全体を一括で断熱する構成例を説明した。しかし、本実施形態に係る冷蔵庫は、三次元的な形状の断熱材を部分的に用いる構成としてもよい。即ち、例えば冷蔵庫の角部や図示しない機械室の周辺部分などは、三次元的な形状を有する複雑な構成となっている。そのため、このような複雑な形状となっている部位については、その形状に合わせた三次元的な形状の断熱材を個別に形成し、これにより、断熱する構成としてもよい。従来の真空断熱パネルでは、平板状に形成することは容易であるものの、形状を三次元的に加工することは困難であった。そのため、従来の平板状の真空断熱パネルにより三次元的な形状の部位を断熱することは困難であった。本実施形態によれば、三次元的な複雑な形状を有する部位に対しても、その形状に合った断熱材を備えることができる。また、本実施形態に係る断熱材を用いれば、軽量化を図ることもできる。 In addition, the structural example which heat-insulates the whole heat insulation box 40 collectively was demonstrated here by comprising the heat insulating material 30 as one member which cannot be isolate | separated. However, the refrigerator according to the present embodiment may be configured to partially use a three-dimensional heat insulating material. That is, for example, the corners of the refrigerator and the peripheral portion of the machine room (not shown) have a complicated configuration having a three-dimensional shape. Therefore, about the site | part which becomes such a complicated shape, it is good also as a structure which forms the heat insulating material of the three-dimensional shape according to the shape separately, and insulates by this. In the conventional vacuum heat insulation panel, although it is easy to form in a flat plate shape, it is difficult to process the shape three-dimensionally. For this reason, it has been difficult to insulate a three-dimensionally shaped part with a conventional flat vacuum insulating panel. According to this embodiment, the heat insulating material suitable for the shape can be provided even for a part having a three-dimensional complicated shape. Moreover, if the heat insulating material which concerns on this embodiment is used, weight reduction can also be achieved.
本実施形態に係る断熱材は、繊維により構成されるコア材と、前記コア材を構成するものであって、前記コア材の形状を維持する支持材と、を備える。前記支持材は、前記コア材の断熱面に対応する断熱面対応部を有し、且つ、この断熱面対応部のうち少なくとも２箇所における法線方向が相互に交わる形状となっている。また、本実施形態に係る断熱材の製造方法は、繊維により構成されるコア材を備える断熱材を製造する方法であって、前記外包材内に前記コア材を構成する支持材を収容する支持材収容行程を含む。前記支持材は、前記コア材の形状を維持するものであって、前記コア材の断熱面に対応する断熱面対応部を有し、且つ、この断熱面対応部のうち少なくとも２箇所における法線方向が相互に交わる形状となっている。本実施形態によれば、三次元的な形状を有する支持材によりコア材の形状を維持することができ、従って、所望の形状をなす支持材を使用することで、断熱材全体の形状を自由に設計することができる。 The heat insulating material which concerns on this embodiment is provided with the core material comprised with a fiber, and the support material which comprises the said core material and maintains the shape of the said core material. The support member has a heat insulating surface corresponding portion corresponding to the heat insulating surface of the core material, and has a shape in which normal directions in at least two locations of the heat insulating surface corresponding portion intersect each other. Moreover, the manufacturing method of the heat insulating material which concerns on this embodiment is a method of manufacturing a heat insulating material provided with the core material comprised by fiber, Comprising: The support which accommodates the support material which comprises the said core material in the said outer packaging material Including material storage process. The support material maintains the shape of the core material, has a heat insulating surface corresponding portion corresponding to the heat insulating surface of the core material, and is normal to at least two of the heat insulating surface corresponding portions. It has a shape where the directions cross each other. According to this embodiment, the shape of the core material can be maintained by the support material having a three-dimensional shape. Therefore, the shape of the entire heat insulating material can be freely set by using the support material having a desired shape. Can be designed to
また、本実施形態に係る冷蔵庫によれば、分離不能な１つの部材として構成された断熱材を用いている。従って、極めて断熱性能の高い冷蔵庫を提供することができる。
本実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。本実施形態およびその変形は、発明の範囲および要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。
Moreover, according to the refrigerator which concerns on this embodiment, the heat insulating material comprised as one member which cannot be separated is used. Therefore, it is possible to provide a refrigerator with extremely high heat insulation performance.
This embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.
例えば、支持材の形状は適宜変更して実施することができる。例えば図１３に例示する支持材４４は、断熱面対応部４４ａのうち少なくとも３箇所における法線方向Ｎ１，Ｎ２，Ｎ３が相互に交わる形状となっている。その他、本実施形態では、三次元的に複雑な形状を有する支持材を採用することができる。 For example, the shape of the support material can be changed as appropriate. For example, the support member 44 illustrated in FIG. 13 has a shape in which the normal directions N1, N2, and N3 intersect each other in at least three portions of the heat insulating surface corresponding portion 44a. In addition, in this embodiment, a support material having a three-dimensionally complicated shape can be employed.
また、支持材の材質は、適宜変更して実施することができる。また、支持材は、空隙を有さない中実の構成であってもよい。また、本実施形態に係る断熱材は、例えば、貯湯容器、建材、保温釜などといった冷蔵庫以外にも適用可能である。また、繊維は、樹脂繊維ではなく、ガラス繊維であってもよい。また、断熱材は、真空化していないものであってもよい。 Moreover, the material of a support material can be changed and implemented suitably. Further, the support material may have a solid configuration that does not have voids. Moreover, the heat insulating material which concerns on this embodiment is applicable other than refrigerators, such as a hot water storage container, a building material, a heat retention pot, etc., for example. Further, the fibers may be glass fibers instead of resin fibers. Further, the heat insulating material may not be evacuated.
図面中、１０，２０は断熱材、１１，２１はコア材、１１ａ，２１ａは断熱面、１２，２２，３２は外包材、１３，２３，３３は繊維、１３ａ，２３ａ，１３ｃ，２３ｃは繊維シート、１３ｄ，２３ｄは繊維膜、１４，２４，３４，４４は支持材、１４ａ，２４ａ，４４ａは断熱面対応部、１４ａ１，１４ａ２は面部、２４ａ１は曲面を示す。 In the drawings, 10 and 20 are heat insulating materials, 11 and 21 are core materials, 11a and 21a are heat insulating surfaces, 12, 22 and 32 are outer packaging materials, 13, 23 and 33 are fibers, 13a, 23a, 13c and 23c are fibers. Sheets 13d and 23d are fiber membranes, 14, 24, 34 and 44 are support materials, 14a, 24a and 44a are heat-insulating surface corresponding portions, 14a1 and 14a2 are surface portions, and 24a1 is a curved surface.
Claims (16)
前記コア材を構成するものであって、前記コア材の形状を維持する支持材と、を備え、
前記支持材は、前記コア材の断熱面に対応する断熱面対応部を有し、且つ、この断熱面対応部のうち少なくとも２箇所における法線方向が相互に交わる形状となっている断熱材。 A core material composed of fibers;
Comprising the core material, comprising a support material for maintaining the shape of the core material,
The said support material is a heat insulating material which has a heat insulation surface corresponding | compatible part corresponding to the heat insulation surface of the said core material, and becomes the shape where the normal line direction in at least 2 places cross | intersects among this heat insulation surface corresponding | compatible part.
前記支持材の周囲に複数の前記繊維シートが積層されている請求項４に記載の断熱材。 The fibers constitute a plurality of fiber sheets,
The heat insulating material according to claim 4, wherein a plurality of the fiber sheets are laminated around the support material.
前記支持材の周囲に前記繊維シートが巻き付けられている請求項４に記載の断熱材。 The fiber constitutes a fiber sheet,
The heat insulating material according to claim 4, wherein the fiber sheet is wound around the support material.
前記コア材を構成し当該コア材の形状を維持するものであって、前記コア材の断熱面に対応する断熱面対応部を有し、且つ、この断熱面対応部のうち少なくとも２箇所における法線方向が相互に交わる形状となっている支持材を、前記外包材内に収容する支持材収容行程を含む断熱材の製造方法。 A method for producing a heat insulating material comprising a core material composed of fibers,
The core material is configured to maintain the shape of the core material, and has a heat insulating surface corresponding portion corresponding to the heat insulating surface of the core material, and a method in at least two of the heat insulating surface corresponding portions The manufacturing method of the heat insulating material including the support material accommodation process which accommodates the support material which becomes a shape where a linear direction mutually crosses in the said outer packaging material.
Priority Applications (19)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015053451A JP2016173143A (en) | 2015-03-17 | 2015-03-17 | Heat insulation material, refrigerator, and method for manufacturing heat insulation material |
| US15/556,918 US20180238609A1 (en) | 2015-03-10 | 2016-03-08 | Heat insulation material, core material, refrigerator, manufacturing method of heat insulation material |
| EP16761749.7A EP3270032A4 (en) | 2015-03-10 | 2016-03-08 | Vacuum insulated panel, core material, and refrigerator |
| PCT/JP2016/057130 WO2016143779A1 (en) | 2015-03-10 | 2016-03-08 | Vacuum insulated panel, core material, refrigerator, method for producing vacuum insulated panel, and method for recycling refrigerator |
| US15/556,920 US20190257573A1 (en) | 2015-03-10 | 2016-03-08 | Vacuum insulation panel, core material, and refrigerator |
| KR1020197022182A KR102279401B1 (en) | 2015-03-10 | 2016-03-08 | Vacuum insulated panel, core material, refrigerator, method for producing vacuum insulated panel, and method for recycling refrigerator |
| KR1020177025799A KR20170117181A (en) | 2015-03-10 | 2016-03-08 | Method of manufacturing insulation, core material, refrigerator, insulation |
| KR1020177026870A KR102072453B1 (en) | 2015-03-10 | 2016-03-08 | Vacuum Insulation Panel, Core Material, Refrigerator |
| CN201680014502.7A CN107429873A (en) | 2015-03-10 | 2016-03-08 | Vacuum insulation panel, core, refrigerator, the manufacture method of vacuum insulation panel, the recycling method of refrigerator |
| CN201911068875.4A CN110778852B (en) | 2015-03-10 | 2016-03-08 | Heat insulating material, core material, refrigerator, and method for manufacturing heat insulating material |
| CN201680014497.XA CN107429872B (en) | 2015-03-10 | 2016-03-08 | The manufacturing method of heat-insulating material, core material, refrigerator and heat-insulating material |
| US15/556,884 US20180238605A1 (en) | 2015-03-10 | 2016-03-08 | Vacuum heat insulation panel, core material, refrigerator, manufacturing method of vacuum heat insulation panel, and recycling method of refrigerator |
| KR1020177025681A KR20170117508A (en) | 2015-03-10 | 2016-03-08 | Vacuum insulation panel, core material, refrigerator, vacuum insulation panel manufacturing method, refrigerator recycling method |
| EP16761748.9A EP3270031A4 (en) | 2015-03-10 | 2016-03-08 | Insulation, core material, refrigerator, and insulation manufacturing method |
| EP16761747.1A EP3270030A4 (en) | 2015-03-10 | 2016-03-08 | Vacuum insulated panel, core material, refrigerator, method for producing vacuum insulated panel, and method for recycling refrigerator |
| PCT/JP2016/057131 WO2016143780A1 (en) | 2015-03-10 | 2016-03-08 | Insulation, core material, refrigerator, and insulation manufacturing method |
| PCT/JP2016/057132 WO2016143781A1 (en) | 2015-03-10 | 2016-03-08 | Vacuum insulated panel, core material, and refrigerator |
| CN201680014313.XA CN107407454B (en) | 2015-03-10 | 2016-03-08 | Vacuum heat-insulating plate, core material and refrigerator |
| CN201610134479.7A CN105972389B (en) | 2015-03-10 | 2016-03-10 | Vacuum heat-insulating plate and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015053451A JP2016173143A (en) | 2015-03-17 | 2015-03-17 | Heat insulation material, refrigerator, and method for manufacturing heat insulation material |
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| JP2016173143A true JP2016173143A (en) | 2016-09-29 |
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