JP2013119999A - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
JP2013119999A
JP2013119999A JP2011267808A JP2011267808A JP2013119999A JP 2013119999 A JP2013119999 A JP 2013119999A JP 2011267808 A JP2011267808 A JP 2011267808A JP 2011267808 A JP2011267808 A JP 2011267808A JP 2013119999 A JP2013119999 A JP 2013119999A
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Japan
Prior art keywords
heat insulating
refrigerator
heat insulation
wall portion
portions
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JP2011267808A
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JP5868152B2 (en
Inventor
Makoto Oikawa
誠 及川
Tomoyasu Saeki
友康 佐伯
Ryo Kawada
良 河田
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Toshiba Corp
Toshiba Lifestyle Products and Services Corp
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Toshiba Corp
Toshiba Consumer Electronics Holdings Corp
Toshiba Home Appliances Corp
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Application filed by Toshiba Corp, Toshiba Consumer Electronics Holdings Corp, Toshiba Home Appliances Corp filed Critical Toshiba Corp
Priority to JP2011267808A priority Critical patent/JP5868152B2/en
Priority to EP12855518.2A priority patent/EP2789952B1/en
Priority to CN201280060200.5A priority patent/CN103975211B/en
Priority to PCT/JP2012/078984 priority patent/WO2013084656A1/en
Priority to TW101143025A priority patent/TWI512256B/en
Publication of JP2013119999A publication Critical patent/JP2013119999A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/062—Walls defining a cabinet
    • F25D23/063—Walls defining a cabinet formed by an assembly of panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/14—Insulation with respect to heat using subatmospheric pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/065—Details
    • F25D23/068—Arrangements for circulating fluids through the insulating material

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator having a sealed connection portion of a heat insulating wall, in the refrigerator in which a heat insulation box body is configured by connecting a plurality of heat insulating walls, each of which is configured by disposing a vacuum heat insulating panel between an outer shell and an inner shell.SOLUTION: Foam insulations 18, 19 are filled into the inside of a cover member 15 having an L-shape cross-section, the cover member 15 is attached to a corner of a right side back part of the heat insulation box body and, thereby, a connection portion between a right sidewall 1d and an inner wall 1e is covered from the outside.

Description

本発明の実施形態は、冷蔵庫に関する。   Embodiments of the present invention relate to a refrigerator.

近年、例えば家庭用の冷蔵庫は、内容積の増加傾向にあり、それを、冷蔵庫本体である断熱箱体の大型化によらず、断熱箱体の周壁の厚さを薄くすることで実現しようとしている。この場合、その薄い周壁でも十分な断熱性能を確保する必要があり、そのために、断熱箱体の周壁には、発泡性断熱材を充填することに加えて、発泡性断熱パネルに比べて断熱性能が高い（熱伝導率が低い）断熱パネルである真空断熱パネルを使用することが行われており、更には断熱箱体の周壁を真空断熱パネルのみで充たすようにしたものもある（例えば特許文献１，２）。   In recent years, for example, refrigerators for home use have a tendency to increase the internal volume, and it is attempted to realize this by reducing the thickness of the peripheral wall of the heat insulation box body, regardless of the increase in the size of the heat insulation box body which is the main body of the refrigerator. Yes. In this case, it is necessary to ensure sufficient heat insulation performance even with the thin peripheral wall.For this reason, in addition to filling the peripheral wall of the heat insulation box with foaming heat insulation material, heat insulation performance compared to the foam heat insulation panel It is practiced to use a vacuum insulation panel that is a heat insulation panel having a high heat conductivity (low thermal conductivity), and there are also those in which the peripheral wall of the heat insulation box is filled with only the vacuum insulation panel (for example, Patent Documents) 1, 2).

真空断熱パネルは、例えば細いガラス繊維の綿状物であるグラスウールをマット状にしてコア材とし、このコア材をアルミニウム箔と合成樹脂とのラミネートフィルムで製袋したガスバリア容器に入れ、内部を真空排気して開口を閉塞することで容器内部を真空減圧状態に保持したパネルであり、薄くても低い熱伝導率（高い断熱性）を保有しているので、これを使用することで断熱箱体の周壁に高い断熱性を保有させることができる。   The vacuum insulation panel is made of, for example, glass wool, which is a thin fiberglass cotton material, matted to form a core material. The core material is placed in a gas barrier container made of aluminum foil and a synthetic resin laminate film, and the interior is evacuated. A panel that keeps the inside of the container in a vacuum-reduced state by evacuating and closing the opening. Even if it is thin, it has low thermal conductivity (high heat insulation), so it can be insulated by using it. High heat insulation can be retained in the peripheral wall of the.

特許第２７２８３１８号公報Japanese Patent No. 2728318 特開平６−１４７７４４号公報JP-A-6-147744

真空断熱パネルを使用した断熱箱体では、箱体を複数の断熱壁部に分け、その複数の断熱壁部を組み合わせ結合して構成される。この複数の断熱壁部を組み合わせて構成される断熱箱体では、断熱壁部の結合部分から外気が侵入し、或いは断熱箱体内の冷気が侵出し、断熱箱体の結合部分の内側、或いは外側に結露するという不具合を生ずる。
そこで、複数の断熱壁部の結合部分をシールできる冷蔵庫を提供する。 In the heat insulation box using a vacuum heat insulation panel, the box is divided into a plurality of heat insulation walls, and the plurality of heat insulation walls are combined and coupled. In the heat insulation box configured by combining the plurality of heat insulation wall portions, outside air enters from the joint portion of the heat insulation wall portions, or cool air in the heat insulation box body penetrates inside, or outside the joint portion of the heat insulation box body. This causes the problem of condensation.
Then, the refrigerator which can seal the coupling | bond part of a some heat insulation wall part is provided.

本実施形態の冷蔵庫は、断熱箱体を、外殻と内殻との間に断熱パネルを設けてなる複数の断熱壁部を結合して構成し、複数の断熱壁部の結合部分のうち所要の結合部分に当該結合部分をシールするための覆い部材を設けたことを特徴とする。   In the refrigerator of this embodiment, the heat insulating box is configured by combining a plurality of heat insulating wall portions provided with a heat insulating panel between the outer shell and the inner shell, and required among the connecting portions of the plurality of heat insulating wall portions. A cover member for sealing the joint portion is provided at the joint portion.

一実施形態を示す断熱箱体の部分的な横断面図The partial cross-sectional view of the heat insulation box which shows one Embodiment 断熱箱体の部分的な横断斜視図Partial cross-sectional perspective view of an insulated box 断熱箱体を前側から見た斜視図The perspective view which looked at the heat insulation box from the front side 断熱箱体を後側から見た斜視図The perspective view which looked at the heat insulation box from the back side 断熱箱体の分解斜視図Exploded perspective view of heat insulation box 真空断熱パネルを示し、（ａ）は分解斜視図、（ｂ）は断面図A vacuum heat insulation panel is shown, (a) is an exploded perspective view, (b) is a sectional view.

以下、図面を参照して一実施形態を説明する。なお、冷蔵庫の前後左右は、冷蔵庫の扉側を「前側」とし、扉に相対して冷蔵庫を見た場合の右側を「右側」として説明する。
図３および図４は冷蔵庫本体を構成する断熱箱体１を示している。断熱箱体１は、全体としては前面が開口された直方体の縦長箱状をなし、内部空間は収納空間２とされている。本実施形態にあっては、断熱箱体１は、図５に示すように、周壁、即ち、天井壁部１ａ、底壁部１ｂ、左側壁部１ｃ、右側壁部１ｄおよび奥壁部１ｅを別々に製作し、これら複数（本実施形態では５個）の壁部（断熱壁部）１ａ〜１ｅを組み合わせることにより構成されている。この場合、天井壁部１ａを除く底壁部１ｂ、左側壁部１ｃ、右側壁部１ｄおよび奥壁部１ｅは、矩形の平板状で、天井壁部１ａだけは後部が一段低くされた段付き形状になっている。この天井壁部１ａの段付き形状により、断熱箱体１として組み合わせた時、当該断熱箱体１の上後部に冷凍サイクルのコンプレッサなどを配設する機械室３が形成されるようになっている。 Hereinafter, an embodiment will be described with reference to the drawings. The front, rear, left and right sides of the refrigerator will be described as the front side of the refrigerator door and the right side when viewing the refrigerator relative to the door as the right side.
3 and 4 show the heat insulating box 1 constituting the refrigerator main body. The heat insulating box 1 as a whole has a rectangular parallelepiped vertical box shape whose front surface is opened, and the internal space is a storage space 2. In the present embodiment, as shown in FIG. 5, the heat insulating box 1 includes peripheral walls, that is, a ceiling wall 1a, a bottom wall 1b, a left wall 1c, a right wall 1d and a back wall 1e. These are manufactured separately and combined by combining a plurality (five in this embodiment) of wall portions (heat insulating wall portions) 1a to 1e. In this case, the bottom wall portion 1b, the left side wall portion 1c, the right side wall portion 1d, and the back wall portion 1e excluding the ceiling wall portion 1a are in a rectangular flat plate shape, and only the ceiling wall portion 1a is stepped by a lower step. It has a shape. Due to the stepped shape of the ceiling wall portion 1a, when combined as the heat insulation box 1, a machine room 3 in which a compressor of a refrigeration cycle and the like are disposed at the upper rear portion of the heat insulation box 1 is formed. .

ここで上記各壁部１ａ〜１ｅの構成について述べる。まず、各壁部１ａ〜１ｅの断熱機能は断熱体、例えば真空断熱パネル４によって得るようにしている。この真空断熱パネル４は、図６（ａ）に示すように、例えば細いガラス繊維の綿状物であるグラスウールをマット状にしてコア材５とし、このコア材５をアルミニウム箔と合成樹脂とのラミネートフィルムで製袋したガスバリア容器６に入れ、内部を真空排気して開口を閉塞することでガスバリア容器６の内部を真空減圧状態に保持したものである。   Here, the structure of each said wall part 1a-1e is described. First, the heat insulating function of each of the walls 1a to 1e is obtained by a heat insulator, for example, the vacuum heat insulating panel 4. As shown in FIG. 6 (a), the vacuum heat insulation panel 4 is made of, for example, glass wool, which is a thin glass fiber cotton material, matted to form a core material 5. The core material 5 is made of an aluminum foil and a synthetic resin. The gas barrier container 6 made of laminate film is put in a gas barrier container 6 and the inside of the gas barrier container 6 is kept in a vacuum reduced pressure state by evacuating the inside and closing the opening.

各壁部１ａ〜１ｅは、図６（ａ），（ｂ）に示すように、例えば鋼板などの金属製の外殻７と例えばプラスチック製の内殻８との間に、真空断熱パネル４を充たした構成のもので、外殻７と真空断熱パネル４、真空断熱パネル４と内殻８とは、互いに接着などによって固着一体化されている。なお、図６では壁部を平板状のものとして示したが、天井壁部１ａは段付き形状にされることは勿論である。   As shown in FIGS. 6A and 6B, each of the wall portions 1 a to 1 e has a vacuum heat insulating panel 4 between a metal outer shell 7 such as a steel plate and a plastic inner shell 8, for example. The outer shell 7 and the vacuum heat insulation panel 4 and the vacuum heat insulation panel 4 and the inner shell 8 are fixedly integrated with each other by bonding or the like. Although the wall portion is shown as a flat plate in FIG. 6, the ceiling wall portion 1 a is naturally formed in a stepped shape.

各壁部１ａ〜１ｅにおいて、内殻８は外殻７よりも縦横寸法が小さく、更に、真空断熱パネル４は内殻８よりも縦横寸法が小さく形成されている。従って、真空断熱パネル４の四辺（端）は外殻７の四辺（端）は勿論のこと内殻８の四辺（端）にまで至らず、外殻７の四辺および内殻８の四辺よりも内側の奥まった位置に存在している。また、各壁部１ａ〜１ｅの外殻７の四辺のうち所定の辺には連結片９が直角に折り曲げ形成されている。各壁部１ａ〜１ｅの所要の辺に形成された連結片９は、互いに隣接する壁部の外殻７どうしをねじなどによって連結するためのものである。   In each of the walls 1a to 1e, the inner shell 8 has a smaller vertical and horizontal dimension than the outer shell 7, and the vacuum heat insulating panel 4 has a smaller vertical and horizontal dimension than the inner shell 8. Therefore, the four sides (ends) of the vacuum heat insulation panel 4 do not reach the four sides (ends) of the inner shell 8 as well as the four sides (ends) of the outer shell 7, and are more than the four sides of the outer shell 7 and the four sides of the inner shell 8. It exists in a deep position inside. Further, a connecting piece 9 is bent at a right angle on a predetermined side of the four sides of the outer shell 7 of each of the walls 1a to 1e. The connecting piece 9 formed on a required side of each of the wall portions 1a to 1e is for connecting the outer shells 7 of the wall portions adjacent to each other by screws or the like.

各壁部１ａ〜１ｅを組み合わせて構成された断熱箱体１の前面には、当該前面を上下方向に仕切る３個の横枠１０〜１２が取り付けられていると共に、中段の横枠１１と下段の横枠１２との間には、縦枠１３が取り付けられている。そして、図示はしないが、横枠１０〜１２の後側および縦枠１３の後側には、断熱壁または仕切板が設けられ、これら断熱壁と仕切板とによって、収納空間２内が上から順に冷蔵室２ａ、野菜室２ｂ、横方向に並ぶ製氷室２ｃおよび仕様切替室２ｄ、冷凍室２ｅに仕切られるようになっている。そして、断熱箱体１の前面には、各室２ａ〜２ｅの前面を開閉するための扉（図示せず）が取り付けられるようになっている。   Three horizontal frames 10 to 12 for partitioning the front surface in the vertical direction are attached to the front surface of the heat insulating box 1 configured by combining the wall portions 1a to 1e. A vertical frame 13 is attached to the horizontal frame 12. And although not illustrated, a heat insulating wall or a partition plate is provided on the rear side of the horizontal frames 10 to 12 and the rear side of the vertical frame 13, and the inside of the storage space 2 is viewed from above by these heat insulating walls and the partition plate. The refrigerator compartment 2a, the vegetable compartment 2b, the ice making compartment 2c, the specification switching compartment 2d, and the freezer compartment 2e arranged in the horizontal direction are sequentially partitioned. And the door (not shown) for opening and closing the front surface of each chamber 2a-2e is attached to the front surface of the heat insulation box 1. As shown in FIG.

本実施形態における冷蔵庫は、冷蔵用と冷凍用の２個のエバポレータ（冷却器）を備え、冷蔵用のエバポレータは冷蔵室２ａの奥部に形成される冷却室に配置され、冷凍用のエバポレータは冷凍室２ｅの奥部に形成される冷却室に配置される。そして、冷蔵室２ａ、野菜室２ｂ、横方向に並ぶ製氷室２ｃおよび仕様切替室２ｄ、冷凍室２ｅには、２個のエバポレータで冷却された冷気がファンによって送風され、冷蔵温度、或いは冷凍温度に冷却されるように構成される。   The refrigerator in the present embodiment includes two evaporators (coolers) for refrigeration and refrigeration, the evaporator for refrigeration is disposed in a cooling chamber formed in the back of the refrigeration chamber 2a, and the evaporator for refrigeration is It arrange | positions at the cooling chamber formed in the innermost part of the freezer compartment 2e. Then, cold air cooled by two evaporators is blown by a fan into the refrigerator compartment 2a, the vegetable compartment 2b, the ice making compartment 2c, the specification switching compartment 2d, and the freezer compartment 2e arranged in the horizontal direction. It is configured to be cooled.

図１および図２は断熱箱体１の右側後部の上下に延びる稜角部分の横断面図および横断斜視図である。この図１および図２には、奥壁部１ｅと右側壁部１ｄとの結合部分の構成が示されている。なお、真空断熱パネル４、外殻７、内殻８について、奥壁部１ｅのものと、右側壁部１ｄのものとを区別するために、右側壁部１ｄのものには「ｄ」の添え字を付し、奥壁部１ｅのものには「ｅ」の添え字を付して示す。   FIG. 1 and FIG. 2 are a cross-sectional view and a cross-sectional perspective view of a ridge angle portion extending vertically on the right rear portion of the heat insulation box 1. FIG. 1 and FIG. 2 show the configuration of the connecting portion between the back wall portion 1e and the right wall portion 1d. For the vacuum heat insulating panel 4, the outer shell 7, and the inner shell 8, in order to distinguish the one of the back wall portion 1e from the one of the right wall portion 1d, the right wall portion 1d is appended with “d”. A letter is attached, and the thing of the back wall part 1e is attached with a subscript "e".

図１および図２において、右側壁部１ｄの外殻７ｄの後端には連結片９が設けられており、この連結片９は奥壁部１ｅの外殻７ｅの右端部に内側から当てられている。そして、右側壁部１ｄの外殻７ｄの連結片９は奥壁部１ｅの外殻７ｅの右端部に後述のようにしてねじ止めされる。また、奥壁部１ｅの内殻８ｅの右端は右側壁部１ｄの内殻８ｄの後端部表面に当てられている。   1 and 2, a connecting piece 9 is provided at the rear end of the outer shell 7d of the right wall 1d, and this connecting piece 9 is applied to the right end of the outer shell 7e of the back wall 1e from the inside. ing. The connecting piece 9 of the outer shell 7d of the right side wall 1d is screwed to the right end of the outer shell 7e of the back wall 1e as will be described later. Further, the right end of the inner shell 8e of the back wall portion 1e is brought into contact with the rear end surface of the inner shell 8d of the right wall portion 1d.

前述したように、各壁部１ａ〜１ｅにおいて、真空断熱パネル４の端は外殻７の端まで至らず、やや短くなっているため、互いに連結された右側壁部１ｄおよび奥壁部１ｅの真空断熱パネル４ｄ，４ｅどうしは互いに離間し、その間に隙間Ｇが存在している。そして、この隙間Ｇ内には、右側壁部１ｄと奥壁部１ｅとを組み合わせる際にスポンジ状の断熱材１４が充填される。   As described above, in each of the wall portions 1a to 1e, the end of the vacuum heat insulation panel 4 does not reach the end of the outer shell 7 and is slightly shortened, so that the right side wall portion 1d and the back wall portion 1e connected to each other are short. The vacuum heat insulating panels 4d and 4e are separated from each other, and a gap G exists between them. The gap G is filled with a sponge-like heat insulating material 14 when the right side wall 1d and the back wall 1e are combined.

連結された右側壁部１ｄの内殻８ｄと奥壁部１ｅの内殻８ｅとの間、或いは右側壁部１ｄの外殻７ｄの連結片９と奥壁部１ｅの外殻７ｅの右端部との間には多少の隙間が生ずることは避けられず、その隙間を通じて、収納空間２から断熱箱体１外に向かって冷気が逃げ、或いは断熱箱体１外の空気が収納空間２内に向かって侵入する恐れがある。そこで、本実施形態では、断熱箱体１の右側後部の上下に延びる稜角部分の例えば外側に上下に長い覆い部材１５を設け、この覆い部材１５により右側壁部１ｄと奥壁部１ｅとの結合部分をシールするようにしている。   Between the connected inner shell 8d of the right side wall 1d and the inner shell 8e of the back wall 1e, or the connecting piece 9 of the outer shell 7d of the right side wall 1d and the right end of the outer shell 7e of the back wall 1e It is inevitable that some gaps are generated between the two, and cold air escapes from the storage space 2 to the outside of the heat insulation box 1 through the gap, or the air outside the heat insulation box 1 moves toward the storage space 2. There is a risk of intrusion. Therefore, in the present embodiment, a long covering member 15 is provided on the upper and lower sides of the ridge angle portion extending vertically on the right rear portion of the heat insulating box 1, and the right wall portion 1d and the back wall portion 1e are coupled by the covering member 15. The part is sealed.

覆い部材１５は、例えばプラスチック製で、図１および図２に示すように、互いに直交する２辺、つまり右側壁部１ｅに押し当てられる押し当て部１６と、奥壁部１ｅに押し当てられる押し当て部１７を有した断面Ｌ字状をなしている。右側壁部１ｄに押し当てられる押し当て部１６の横幅（前後方向長さ）は、覆い部材１５を断熱箱体１の右側後部の稜角部分に宛がったとき、右側壁部１ｄの外殻７ｄに対し、断熱材１４の充填部分を超えて真空断熱パネル４の充填部分まで延びるような寸法に設定されている。また、同様に奥壁部１ｅに押し当てられる押し当て部１７の横幅（左右方向長さ）は、覆い部材１５を断熱箱体１の右側後部の稜角部分に宛がったとき、奥壁部１ｅの外殻７ｅに対し、断熱材１４の充填部分を超えて真空断熱パネル４ｅの充填部分まで延びるような寸法に設定されている。   The covering member 15 is made of, for example, plastic, and as shown in FIGS. 1 and 2, two sides orthogonal to each other, that is, a pressing portion 16 pressed against the right side wall 1e and a pressing pressed against the back wall 1e. It has an L-shaped cross section with a contact portion 17. The lateral width (length in the front-rear direction) of the pressing portion 16 pressed against the right side wall portion 1d is the outer shell of the right side wall portion 1d when the covering member 15 is directed to the ridge angle portion of the right rear portion of the heat insulating box 1. With respect to 7d, the dimension is set so as to extend beyond the filling portion of the heat insulating material 14 to the filling portion of the vacuum heat insulating panel 4. Similarly, the lateral width (left-right direction length) of the pressing portion 17 pressed against the back wall portion 1e is the back wall portion when the covering member 15 is directed to the ridge angle portion of the right rear portion of the heat insulating box 1. The outer shell 7e of 1e is set so as to extend beyond the filling portion of the heat insulating material 14 to the filling portion of the vacuum heat insulating panel 4e.

押し当て部１６，１７の幅方向先端部は内側に曲げられており、この曲げられた端片部１６ａ，１７ａの存在によって各押し当て部１６，１７の内側が凹状になっている。そして、この凹状をなす両押し当て部１６，１７の内側には、発泡性断熱材（断熱層）１８，１９が充填されている。これら両発泡性断熱材１８，１９のうちのいずれか、例えば奥壁部１ｅの外殻７ｄに当てられる押し当て部１７の発泡性断熱材１９の表面には、押し当て部１７の幅方向先端側に位置して溝２０が上下方向に伸びるように形成されている。   The front end portions in the width direction of the pressing portions 16 and 17 are bent inward, and the inner sides of the pressing portions 16 and 17 are recessed due to the presence of the bent end piece portions 16a and 17a. And inside the both pressing parts 16 and 17 which make this concave shape, the foamable heat insulating material (heat insulation layer) 18 and 19 is filled. One of these foaming heat insulating materials 18 and 19, for example, the surface of the foaming heat insulating material 19 of the pressing portion 17 applied to the outer shell 7 d of the back wall portion 1 e, the front end of the pressing portion 17 in the width direction. The groove 20 is formed on the side so as to extend in the vertical direction.

両押し当て部１６，１７の発泡性断熱材１８，１９の表面は、互いに直角に交差し、右側壁部１ｄの外殻７ｄおよび奥壁部１ｅの外殻７ｅに接している。この場合、右側壁部１ｄの外殻７ｄが周縁部分の補強のために当該周縁部分を残して中央側を凹状に形成している。このため、その凹状部分に合せて右側壁部１ｄに当てられる押し当て部１６の端片部１６ａは、奥壁部１ｅ側の端片部１７ａよりも長く突出していると共に、押し当て部１６の発泡性断熱材１８の表面のうち外殻７ｄの凹状部分に接する先端側の部分は一段高く突出している。   The surfaces of the foam heat insulating materials 18 and 19 of the both pressing portions 16 and 17 intersect each other at right angles, and are in contact with the outer shell 7d of the right wall portion 1d and the outer shell 7e of the back wall portion 1e. In this case, the outer shell 7d of the right side wall portion 1d is formed in a concave shape at the center side to leave the peripheral portion for reinforcing the peripheral portion. For this reason, the end piece portion 16a of the pressing portion 16 applied to the right side wall portion 1d in accordance with the concave portion protrudes longer than the end piece portion 17a on the back wall portion 1e side, and the pressing portion 16 Of the surface of the foam heat insulating material 18, the portion on the tip side that contacts the concave portion of the outer shell 7 d protrudes one step higher.

そして、前述したように押し当て部１６，１７が真空断熱パネル４ｄ，４ｅの離間部分（隙間Ｇ）を超えて真空断熱パネル４ｄ，４ｅの充填部分にまで延びていることにより、発泡性断熱材１８，１９も、真空断熱パネル４ｄ，４ｅの離間部分（隙間Ｇ）を外側から覆い、本実施形態では、更に真空断熱パネル４ｄ，４ｅの端部分をも覆っている。   Then, as described above, the pressing portions 16 and 17 extend beyond the separated portions (gap G) of the vacuum heat insulation panels 4d and 4e to the filling portions of the vacuum heat insulation panels 4d and 4e. 18 and 19 also cover the separated portions (gap G) of the vacuum heat insulation panels 4d and 4e from the outside, and in this embodiment, also cover the end portions of the vacuum heat insulation panels 4d and 4e.

覆い部材１５は、断熱箱体１の下端から機械室３の底面３ａ（天井壁部１ａの後部低段面）に至るまでの長さと同等の長さを有している。そして、各押し当て部１６，１７には、取付部分を兼用する補強部１６ｂ，１７ｂがそれぞれ複数個上下方向に間欠的に形成されている。補強部１６ｂ，１７ｂは、各押し当て部１６，１７の表面から内側に向けて筒状、例えば円筒状に突出形成されたもので、その突出量は凹状をなす各押し当て部１６，１７の深さと同等度に定められており、これら補強部１６ｂ，１７ｂの外底面は発泡性断熱材１８，１９の表面と面一になっている。   The cover member 15 has a length equivalent to the length from the lower end of the heat insulation box 1 to the bottom surface 3a of the machine room 3 (the rear low step surface of the ceiling wall portion 1a). A plurality of reinforcing portions 16b, 17b that also serve as attachment portions are intermittently formed in the pressing portions 16, 17 in the vertical direction. The reinforcing portions 16b and 17b are formed so as to protrude in a cylindrical shape, for example, a cylindrical shape, from the surface of the pressing portions 16 and 17 to the inside, and the protruding amount of each of the pressing portions 16 and 17 forming a concave shape. The outer bottom surfaces of the reinforcing portions 16b and 17b are flush with the surfaces of the foam heat insulating materials 18 and 19, respectively.

各押し当て部１６，１７の補強部１６ｂ，１７ｂの底部には、押し当て部１６，１７を右側壁部１ｄ、奥壁部１ｅに固定するためのセルフタッピングねじ２１を通す通し孔２２が形成されている。これに対し、右側壁部１ｄの外殻７ｄには、セルフタッピングねじ２１を螺着するためのバーリング孔部２３が形成されている。また、奥壁部１ｅの外殻７ｅには、セルフタッピングねじ２１を通すための通し孔２４が形成されていると共に、この外殻７ｅに当てられた右側壁部１ｄの連結片９には、セルフタッピングねじ２１を螺着するためのバーリング孔部２５が形成されている。   Through holes 22 through which self-tapping screws 21 for fixing the pressing portions 16, 17 to the right wall portion 1d and the back wall portion 1e are formed at the bottoms of the reinforcing portions 16b, 17b of the pressing portions 16, 17. Has been. On the other hand, a burring hole 23 for screwing the self-tapping screw 21 is formed in the outer shell 7d of the right side wall 1d. Further, the outer shell 7e of the back wall portion 1e is formed with a through hole 24 through which the self-tapping screw 21 passes, and the connecting piece 9 of the right wall portion 1d applied to the outer shell 7e has A burring hole 25 for screwing the self-tapping screw 21 is formed.

覆い部材１５を断熱箱体１の右側後部の稜角部分に取り付けるには、発泡性断熱材１９の溝２０内に配管、例えばサクションパイプ２６を挿入配置した上で、覆い部材１５を断熱箱体１の右側後部の稜角部分に配し、押し当て部１６を右側壁部１ｄの外殻７ｄに当てると共に、押し当て部６を奥壁部１ｅの外殻７ｅに当てる。この状態で、セルフタッピングねじ２１を押し当て部１６の補強部１６ｂの通し孔２２に通して右側壁部１ｄの外殻７ｄのバーリング孔部２３に螺着し当該押し当て部１６を右側壁部１ｄに固定すると共に、セルフタッピングねじ２１を押し当て部１６の補強部１６ｂの通し孔２２および奥壁部１ｅの外殻７ｅの通し孔２４に順次通して右側壁部１ｄの連結片９のバーリング孔部２５に螺着し当該押し当て部１７を奥壁部１ｅに固定する。   In order to attach the covering member 15 to the ridge corner of the right rear portion of the heat insulating box 1, a pipe, for example, a suction pipe 26 is inserted and disposed in the groove 20 of the foamable heat insulating material 19, and the covering member 15 is then attached to the heat insulating box 1. The pressing portion 16 is applied to the outer shell 7d of the right wall portion 1d, and the pressing portion 6 is applied to the outer shell 7e of the back wall portion 1e. In this state, the self-tapping screw 21 is passed through the through hole 22 of the reinforcing portion 16b of the pressing portion 16 and screwed into the burring hole portion 23 of the outer shell 7d of the right side wall portion 1d, and the pressing portion 16 is connected to the right side wall portion. While fixing to 1d, the self-tapping screw 21 is sequentially passed through the through hole 22 of the reinforcing part 16b of the pressing part 16 and the through hole 24 of the outer shell 7e of the back wall part 1e to burring the connecting piece 9 of the right side wall part 1d. The pressing portion 17 is fixed to the back wall portion 1e by screwing into the hole portion 25.

覆い部材１５の固定状態において、サクションパイプ２６は、溝２０が押し当て部１７の先端側に形成されていることにより、奥壁部１ｅの真空断熱パネル４ｅに対応位置、つまり、外殻７ｅのうち真空断熱パネル４ｅが装着されている部分に位置している。なお、サクションパイプ２６は、冷蔵用と冷凍用の２個のエバポレータとコンプレッサの吸入口とを接続するためのもので、低温度の液冷媒が流れる。   In the fixed state of the covering member 15, the suction pipe 26 is formed at the position corresponding to the vacuum heat insulating panel 4 e of the back wall portion 1 e, that is, the outer shell 7 e of the outer wall portion 7 e because the groove 20 is formed on the distal end side of the pressing portion 17. Among these, it is located in the part where the vacuum heat insulation panel 4e is attached. The suction pipe 26 is used to connect two evaporators for refrigeration and refrigeration, and the suction port of the compressor, and a low-temperature liquid refrigerant flows therethrough.

このように本実施形態によれば、断熱箱体１の右側後部の稜角部分に覆い部材１５が取り付けられているため、右側壁部１ｄと奥壁部１ｅの結合部分が外側からシールされる。このため、右側壁部１ｄと奥壁部１ｅの結合部分に多少の隙間があっても、収納空間２内の冷気が外部に漏れ出たり、外気が収納空間２内に侵入したりすることを防止でき、外殻７ｄ，７ｅや内殻８ｄ，８ｅに結露が生ずることを防止できると共に、収納空間２に対する冷却効率の向上に寄与する。   Thus, according to this embodiment, since the covering member 15 is attached to the ridge angle part of the right rear part of the heat insulation box 1, the joint part of the right wall part 1d and the back wall part 1e is sealed from the outside. For this reason, even if there is a slight gap in the connecting portion between the right side wall portion 1d and the back wall portion 1e, the cold air in the storage space 2 leaks to the outside, or the outside air enters the storage space 2. This can prevent condensation from occurring in the outer shells 7d and 7e and the inner shells 8d and 8e, and contributes to an improvement in cooling efficiency for the storage space 2.

特に本実施形態では、覆い部材１５に発泡性断熱材１８，１９が設けられているので、この発泡性断熱材１８，１９が自身の弾性変形性により右側壁部１ｄの外殻７ｄと奥壁部１ｅの外殻７ｅに密に接するようになるので、特にシール効果に優れる。
更に、本実施形態では、右側壁部１ｄの外殻７ｄの連結片９を奥壁部１ｅの外殻７ｅに当て、覆い部材１５の押し当て部１７の補強部１７ｂを奥壁部１ｅの外殻７ｅに当て、そして、補強部１７ｂをセルフタッピングねじ２１によって連結片９のバーリング孔部２３に締め付けて固定するようにしたので、右側壁部１ｄの外殻７ｄの連結片９と奥壁部１ｅの外殻７ｅとが互いに強く締め付けられて両者間に生ずる隙間が減じられるようになり、シール性の向上に一層寄与する。 In particular, in the present embodiment, since the foaming heat insulating materials 18 and 19 are provided on the covering member 15, the foaming heat insulating materials 18 and 19 are formed by their own elastic deformation properties so that the outer shell 7d and the rear wall of the right side wall portion 1d. Since it comes in close contact with the outer shell 7e of the portion 1e, the sealing effect is particularly excellent.
Furthermore, in the present embodiment, the connecting piece 9 of the outer shell 7d of the right side wall 1d is applied to the outer shell 7e of the back wall 1e, and the reinforcing portion 17b of the pressing portion 17 of the covering member 15 is external to the back wall 1e. Since the reinforcing portion 17b is fixed to the burring hole portion 23 of the connecting piece 9 by the self-tapping screw 21 and fixed to the shell 7e, the connecting piece 9 and the back wall portion of the outer shell 7d of the right side wall portion 1d are fixed. The outer shell 7e of 1e is strongly tightened with each other, and the gap generated between the two is reduced, thereby further contributing to the improvement of the sealing performance.

しかも、発泡性断熱材１８，１９は隙間Ｇ部分に対応位置、本実施形態では隙間Ｇに対応する部分ばかりでなく、隙間Ｇに対応する部分を覆い更に真空断熱パネル４ｄ，４ｅが存在する部分にまで延びているので、隙間Ｇに断熱材１４が充填されていても真空断熱パネル４ｄ，４ｅに比べると断熱性に劣るという事情があっても、その断熱材１４の断熱不足を発泡性断熱材１８，１９により補うことができ、右側壁部１ｄと奥壁部１ｅとの結合部分の断熱性能の向上に寄与する。   In addition, the foamable heat insulating materials 18 and 19 correspond to the gap G portion, and in this embodiment, not only the portion corresponding to the gap G but also the portion corresponding to the gap G and further the vacuum heat insulating panels 4d and 4e are present. Even if the gap G is filled with the heat insulating material 14, even if there is a situation where the heat insulating property is inferior to that of the vacuum heat insulating panels 4d and 4e, the insufficient heat insulation of the heat insulating material 14 It can supplement by the materials 18 and 19, and contributes to the improvement of the heat insulation performance of the coupling | bond part of the right side wall part 1d and the back wall part 1e.

本実施形態では、低温度の冷媒が流れるサクションパイプ２６が発泡性断熱材１９により覆われているので、当該サクションパイプ２６に露付きが生ずることを防止できる。また、サクションパイプ２６は真空断熱パネル４ｅに対応位置しているので、例えばサクションパイプ２６が隙間Ｇに対応位置している場合とは異なり、外殻７ｅがサクションパイプ２６によって冷やされ、この冷やされた部分に隙間Ｇ内の冷蔵温度帯（２〜３℃）の空気が触れて結露するといった不具合をも防止することができる。   In this embodiment, since the suction pipe 26 through which the low-temperature refrigerant flows is covered with the foamable heat insulating material 19, it is possible to prevent the suction pipe 26 from being dewed. In addition, since the suction pipe 26 is positioned corresponding to the vacuum heat insulation panel 4e, the outer shell 7e is cooled by the suction pipe 26, unlike the case where the suction pipe 26 is positioned corresponding to the gap G, for example. It is also possible to prevent the problem that the air in the refrigeration temperature zone (2 to 3 ° C.) in the gap G touches the exposed portion and causes condensation.

また、覆い部材１５に補強部１６ｂ，１７ｂを設け、この補強部１６ｂ，１７ｂをセルフタッピングねじ２１によって右側壁部１ｄ、奥壁部１ｅに固定するようにしたので、セルフタッピングねじ２１の締め付け力に対する強度を向上させることができる。つまり、補強部１６ｂ，１７ｂが設けられていないと、覆い部材１５はセルフタッピングねじ２１の締め付け力を受けて湾曲して内部応力を蓄積する等、強度上の不具合を生ずるが、本実施形態ではこのような不具合の発生を防止できるものである。   Further, the cover member 15 is provided with the reinforcement portions 16b and 17b, and the reinforcement portions 16b and 17b are fixed to the right wall portion 1d and the back wall portion 1e by the self-tapping screw 21, so that the tightening force of the self-tapping screw 21 is increased. The strength against can be improved. In other words, if the reinforcing portions 16b and 17b are not provided, the covering member 15 receives a tightening force of the self-tapping screw 21 and bends to accumulate internal stress. Such a problem can be prevented from occurring.

また、覆い部材１５の両押し当て部１６，１７が右側壁部１ｄと奥壁部１ｅとに固定されているので、覆い部材１５は右側壁部１ｄと奥壁部１ｅとを９０度の結合角度に保持する機能を有する。この場合、両押し当て部１６，１７には補強部１６ｂ、１７ｂが形成されているので、覆い部材１５としての強度が向上し、右側壁部１ｄと奥壁部１ｅとを９０度の結合角度に保持する機能の向上を図ることができる。   Further, since the both pressing portions 16 and 17 of the covering member 15 are fixed to the right side wall portion 1d and the back wall portion 1e, the covering member 15 connects the right side wall portion 1d and the back wall portion 1e by 90 degrees. Has the function of holding at an angle. In this case, since the reinforcing portions 16b and 17b are formed on the both pressing portions 16 and 17, the strength as the covering member 15 is improved, and the right side wall portion 1d and the back wall portion 1e are coupled to each other by 90 degrees. It is possible to improve the function to be held.

なお、上記の実施形態は、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。この新規な実施形態は、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。これら実施形態やその変形は、発明の範囲や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。
例えば、壁部１ａ〜１ｅは、外殻７と内殻８との間を、真空断熱パネル４とこの真空断熱パネル４の内側または外側に充填した発砲断熱材とで満たしたものであっても良い。
断熱箱体１は５つの壁部１ａ〜１ｅにより構成するものに限られず、例えば、左側壁部１ｃと奥壁部１ｅ、底壁部１ｂと奥壁部１ｅなど、２つの壁部を一体に形成したものを１つの壁部とするものであっても良い。
発泡性断熱材で覆う配管はサクションパイプ以外のパイプであっても良い。
取付部分を押し当て部１６，１７の表面部に形成し、補強部はこの通し孔の周囲に筒状に形成したものであっても良い。 In addition, said embodiment is shown as an example and is not intending limiting the range of invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.
For example, the walls 1a to 1e may be filled with a vacuum heat insulating panel 4 and a foam heat insulating material filled inside or outside the vacuum heat insulating panel 4 between the outer shell 7 and the inner shell 8. good.
The heat insulation box 1 is not limited to the one constituted by the five wall portions 1a to 1e. For example, the two wall portions such as the left wall portion 1c and the back wall portion 1e, and the bottom wall portion 1b and the back wall portion 1e are integrated. What was formed may be used as one wall part.
The pipe covered with the foaming heat insulating material may be a pipe other than the suction pipe.
The attachment portion may be formed on the surface portion of the pressing portions 16 and 17, and the reinforcing portion may be formed in a cylindrical shape around the through hole.

補強部１６ｂ，１７ｂは筒状のものに限られない。
覆い部材は右側壁部１ｄの内殻８ｄと奥壁部１ｅの内殻８ｅとで構成されるコーナー部分を収納空間２内から覆うものであっても良い。
覆い部材は壁部１ａ〜１ｅの結合部分のうち所要の結合部分に設ければ良く、例えばシール剤を塗布することでシールできるような部分には特に設けなくとも良い。
真空断熱パネル４は他の断熱体、例えば発泡断熱パネルに変えても良い。 The reinforcing portions 16b and 17b are not limited to a cylindrical shape.
The covering member may cover the corner portion constituted by the inner shell 8d of the right side wall portion 1d and the inner shell 8e of the back wall portion 1e from the inside of the storage space 2.
The covering member may be provided at a required connecting portion of the connecting portions of the walls 1a to 1e. For example, the covering member may not be provided at a portion that can be sealed by applying a sealing agent.
The vacuum heat insulation panel 4 may be changed to another heat insulator, for example, a foam heat insulation panel.

図面中、１は断熱箱体、２は収納空間、４は真空断熱パネル、７は外殻、８は内殻、９は連結片、１５は覆い部材、１６，１７は押し当て部、１８，１９は発泡性断熱材（断熱層）、２６はサクションパイプ（配管）を示す。   In the drawings, 1 is a heat insulation box, 2 is a storage space, 4 is a vacuum heat insulation panel, 7 is an outer shell, 8 is an inner shell, 9 is a connecting piece, 15 is a covering member, 16 and 17 are pressing parts, Reference numeral 19 denotes a foamable heat insulating material (heat insulating layer), and 26 denotes a suction pipe (pipe).

Claims (7)

断熱箱体を冷蔵庫本体とした冷蔵庫において、
前記断熱箱体を、外殻と内殻との間に断熱パネルを設けてなる複数の断熱壁部を結合して構成し、
前記複数の断熱壁部の結合部分のうち所要の結合部分に当該結合部分をシールするための覆い部材を設けたことを特徴とする冷蔵庫。 In a refrigerator with a heat insulation box as a refrigerator body,
The heat insulating box is configured by combining a plurality of heat insulating wall portions provided with a heat insulating panel between an outer shell and an inner shell,
The refrigerator characterized by providing the covering member for sealing the said connection part in a required connection part among the connection parts of these heat insulation wall parts. 請求項１記載の冷蔵庫において、
結合部分が覆い部材によりシールされる２つの断熱壁部は、一方の断熱壁部の断熱パネルと他方の断熱壁部の断熱パネルとが互いに離間し、
前記覆い部材は前記２つの断熱壁部との間に断熱層を有し、当該断熱層は、少なくとも一方の断熱壁部の断熱パネルと他方の断熱壁部の断熱パネルとの離間部分を覆うように設けられていることを特徴とする冷蔵庫。 The refrigerator according to claim 1,
The two heat insulating wall portions whose joint portions are sealed by the covering member, the heat insulating panel of one heat insulating wall portion and the heat insulating panel of the other heat insulating wall portion are separated from each other,
The covering member has a heat insulating layer between the two heat insulating wall portions, and the heat insulating layer covers at least a separated portion between the heat insulating panel of one of the heat insulating wall portions and the heat insulating panel of the other heat insulating wall portion. The refrigerator characterized by being provided in. 請求項１または２記載の冷蔵庫において、
覆い部材の内側には、配管が設けられていることを特徴とする冷蔵庫。 The refrigerator according to claim 1 or 2,
A refrigerator characterized in that piping is provided inside the cover member. 請求項３記載の冷蔵庫において、
配管はエバポレータとコンプレッサとを接続するサクションパイプであって、当該サクションパイプは断熱パネルが設けられている部分に対応位置していることを特徴とする冷蔵庫。 The refrigerator according to claim 3,
Piping is a suction pipe which connects an evaporator and a compressor, Comprising: The said suction pipe is located corresponding to the part in which the heat insulation panel is provided, The refrigerator characterized by the above-mentioned. 請求項１〜４のいずれかに記載の冷蔵庫において、
覆い部材は、断熱壁部への取付部分を補強する補強部を有することを特徴とする冷蔵庫。 In the refrigerator in any one of Claims 1-4,
The cover member has a reinforcing portion that reinforces the attachment portion to the heat insulating wall portion. 請求項５記載の冷蔵庫において、
補強部は、有底の筒状をなし、当該有底筒状の補強部は底部を断熱壁部に当接させた状態でねじにより断熱壁部に締め付け固定されていることを特徴とする冷蔵庫。 The refrigerator according to claim 5,
The reinforcing part has a bottomed cylindrical shape, and the bottomed cylindrical reinforcing part is fastened and fixed to the heat insulating wall part with screws in a state where the bottom part is in contact with the heat insulating wall part. . 請求項１〜６のいずれかに記載の冷蔵庫において、
覆い部材は、断熱箱体の稜角部を外側から覆うように固定され、当該稜角部において結合された２つの断熱壁部の交差角度を直角に保持することを特徴とする冷蔵庫。 In the refrigerator in any one of Claims 1-6,
The cover member is fixed so as to cover the ridge corner portion of the heat insulation box from the outside, and holds the crossing angle of the two heat insulation wall portions joined at the ridge corner portion at a right angle.
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PCT/JP2012/078984 WO2013084656A1 (en) 2011-12-07 2012-11-08 Refrigerator
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CN103975211A (en) 2014-08-06
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TWI512256B (en) 2015-12-11

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