JP6316367B2 - refrigerator - Google Patents

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JP6316367B2
JP6316367B2 JP2016195606A JP2016195606A JP6316367B2 JP 6316367 B2 JP6316367 B2 JP 6316367B2 JP 2016195606 A JP2016195606 A JP 2016195606A JP 2016195606 A JP2016195606 A JP 2016195606A JP 6316367 B2 JP6316367 B2 JP 6316367B2
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heat insulating
heat insulation
box
vacuum heat
wall portion
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JP2016223772A5 (en
JP2016223772A (en
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及川　誠
誠 及川
佐伯　友康
友康 佐伯
良 河田
良 河田
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Toshiba Lifestyle Products and Services Corp
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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

冷蔵庫の冷凍サイクルには、コンデンサパイプ、キャピラリチューブ、サクションパイプなどの多くの配管を必要とする。このうち、コンデンサパイプとエバポレータ（冷却器）との間を接続するキャピラリチューブやエバポレータとコンプレッサとの間を接続するサクションパイプを、エバポレータが断熱箱体の内部である収納空間内に配置される関係で、収納空間内を引き回すと、収納空間の実質的な内容積が狭められ、食品類の収容容積が減少してしまう。
そこで、配管によって断熱箱体の収納空間が狭められることを防止できる冷蔵庫を提供する。 The refrigeration cycle of a refrigerator requires many pipes such as a condenser pipe, a capillary tube, and a suction pipe. Among these, the capillary tube connecting the condenser pipe and the evaporator (cooler) and the suction pipe connecting the evaporator and the compressor are placed in the storage space where the evaporator is inside the heat insulation box. Thus, when the inside of the storage space is drawn, the substantial internal volume of the storage space is narrowed, and the storage volume of foods is reduced.
Then, the refrigerator which can prevent that the storage space of a heat insulation box is narrowed by piping is provided.

本実施形態の冷蔵庫は、内部空間を収納空間とした断熱箱体であって、天井壁部、底壁部、左側壁部、右側壁部および奥壁部を有した断熱箱体を冷蔵庫本体とした冷蔵庫であって、少なくとも前記各壁部のうち前記左側壁部、前記右側壁部および前記奥壁部の内部に真空断熱パネルが設けられ、前記真空断熱パネルの端部から離間した状態で前記断熱箱体の稜角部分の内部であって隣接する前記真空断熱パネルの間に設けられ前記断熱箱体の稜角部に沿って上下方向に延びる配管と、前記収納空間の外でかつ前記断熱箱体の稜角部分の内部に設けられ前記配管を覆うとともに前記真空断熱パネルの端部から離間させる部材と、前記断熱箱体の壁部の内部に設けられ前記配管を覆う断熱材と、を備える。 Refrigerator of this embodiment, a thermal insulating housing in which the interior space and the storage space, the ceiling wall portion, a bottom wall, left side wall, a refrigerator body a heat insulating box body having a right sidewall and back wall portion The refrigerator is a vacuum heat insulating panel provided at least inside the left wall portion, the right wall portion and the back wall portion of each of the wall portions, and is separated from an end portion of the vacuum heat insulating panel. A pipe provided between the adjacent vacuum insulation panels inside the ridge corner portion of the heat insulation box and extending in the vertical direction along the ridge corner of the heat insulation box, and outside the storage space and the heat insulation box And a member that covers the pipe and is spaced apart from the end of the vacuum heat insulation panel, and a heat insulating material that is provided inside the wall of the heat insulation box and covers the pipe .

第１の実施形態を示す断熱箱体の部分横断面図The partial cross-sectional view of the heat insulation box which shows 1st Embodiment 断熱棒体の側面図Side view of insulation rod 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. 第２の実施形態を示す図１相当図FIG. 1 equivalent diagram showing the second embodiment 第３の実施形態を示す部分縦断面図Partial longitudinal sectional view showing the third embodiment 第４の実施形態を示す図４相当図FIG. 4 equivalent view showing the fourth embodiment 図１相当図1 equivalent diagram

複数の実施形態について、図面を参照して説明する。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。   A plurality of embodiments 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.

（第１の実施形態）
図１〜図６により第１の実施形態を説明する。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、外箱２と内箱３との間に断熱パネルとして後述する真空断熱パネル４を設けて構成され、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、内部空間を収納空間５としている。 (First embodiment)
The first embodiment will be described with reference to FIGS. 3 and 4 show the heat insulating box 1 constituting the refrigerator main body. The heat insulation box 1 is configured by providing a vacuum heat insulation panel 4 to be described later as a heat insulation panel between the outer box 2 and the inner box 3, and as a whole has a rectangular parallelepiped vertical box shape with an open front surface. Is the storage space 5.

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６が形成されるようになっている。   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 insulating box 1, a machine room 6 in which a compressor of a refrigeration cycle and the like are disposed at the upper rear portion of the heat insulating 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７とし、このコア材７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８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８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 1 a to 1 e is obtained by the vacuum heat insulating panel 4. As shown in FIG. 6 (a), the vacuum heat insulating panel 4 is made of, for example, glass wool, which is a cotton-like material of fine glass fiber, matted to form a core material 7. The core material 7 is made of an aluminum foil and a synthetic resin. The gas barrier container 8 made of laminate film is put in a gas barrier container 8 and the inside of the gas barrier container 8 is kept in a vacuum and 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９と例えばプラスチック製の内殻１０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９と真空断熱パネル４、真空断熱パネル４と内殻１０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では平板状の壁部として示したが、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 9 such as a steel plate and a plastic inner shell 10, for example. The outer shell 9 and the vacuum heat insulation panel 4 and the vacuum heat insulation panel 4 and the inner shell 10 are fixedly integrated with each other by bonding or the like. In addition, although shown as a flat-plate-shaped wall part in FIG. 6, of course, the ceiling wall part 1a is made into a stepped shape.

各壁部１ａ〜１ｅにおいて、内殻１０は縦横寸法が外殻９よりも小さく、更に、真空断熱パネル４は縦横寸法が内殻１０よりも小さく形成されている。従って、真空断熱パネル４の縦方向両端および横方向両端は外殻９の縦方向両端および横方向両端にまで至らず、外殻９の縦方向両端および横方向両端よりも内側に奥まって位置されている。また、各壁部１ａ〜１ｅのうち所要の壁部の外殻９の所定の端部には連結片１１が直角に折り曲げ形成されている。この連結片１１は、互いに隣接する壁部の外殻９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 1 a to 1 e, the inner shell 10 is smaller in the vertical and horizontal dimensions than the outer shell 9, and the vacuum heat insulating panel 4 is smaller in the vertical and horizontal dimensions than the inner shell 10. Accordingly, both the longitudinal ends and the lateral ends of the vacuum heat insulating panel 4 do not reach the longitudinal ends and the lateral ends of the outer shell 9, and are located behind the longitudinal ends and the lateral ends of the outer shell 9. ing. A connecting piece 11 is bent at a right angle at a predetermined end of the outer shell 9 of a required wall portion among the wall portions 1a to 1e. This connection piece 11 is for connecting the outer shells 9 of the wall portions adjacent to each other by screws or the like.

そして、各壁部１ａ〜１ｅを組み合わせることにより、各壁部１ａ〜１ｅの外殻９によって前記外箱２が構成され、且つ、内殻１０によって前記内箱３が構成されると共に、これら外箱２と内箱３との間に発泡ウレタン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４を設けてなる断熱箱体１が構成される。   And by combining each wall part 1a-1e, the said outer case 2 is comprised by the outer shell 9 of each wall part 1a-1e, and while the said inner case 3 is comprised by the inner shell 10, these outer parts are comprised. Between the box 2 and the inner box 3, the heat insulation box 1 which comprises the vacuum heat insulation panel 4 which is a heat insulation panel whose heat insulation performance is high (thermal conductivity is low) compared with foaming urethane is comprised.

図１は断熱箱体１の右側後部の稜角部分の横断面図で、右側壁部１ｄと奥壁部１ｅとの連結部分が示されている。なお、真空断熱パネル４、外殻９、内殻１０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、奥壁部１ｅのものには「ｅ」の添え字を付し、右側壁部１ｄのものには「ｄ」の添え字を付して示す。   FIG. 1 is a transverse cross-sectional view of the ridge angle portion at the right rear portion of the heat insulating box 1, and shows a connecting portion between the right wall portion 1d and the back wall portion 1e. For the vacuum heat insulating panel 4, the outer shell 9, and the inner shell 10, in order to distinguish the back wall portion 1e from the right wall portion 1d, the back wall portion 1e is attached with "e". A letter is attached, and the one on the right side wall 1d is shown with a suffix "d".

図１に示されているように、右側壁部１ｄの後端には連結片１１が設けられているが、奥壁部１ｅの外殻９ｅの右端には連結片が設けられておらず、右側壁部１ｄの連結片１１が奥壁部１ｅの外殻９ｅの右端部に内面側から当てられている。また、奥壁部１ｅの内殻１０ｅの右端は右側壁部１ｄの内殻１０ｄの後端部表面に突き当てられている。そして、右側壁部１ｃの連結片１１と、奥壁部１ｅの外殻９ｅの右端部とは、図示しないねじにより締結されている。また、奥壁部１ｅの内殻１０ｅの右側端と、右側壁部１ｄの内殻１０ｄとは、シール剤や断面三角形のコーナー部材によってシールされ且つ連結される。   As shown in FIG. 1, a connecting piece 11 is provided at the rear end of the right wall 1d, but no connecting piece is provided at the right end of the outer shell 9e of the back wall 1e. The connecting piece 11 of the right wall 1d is applied to the right end of the outer shell 9e of the back wall 1e from the inner surface side. Further, the right end of the inner shell 10e of the back wall portion 1e is abutted against the rear end surface of the inner shell 10d of the right wall portion 1d. And the connection piece 11 of the right side wall part 1c and the right end part of the outer shell 9e of the back wall part 1e are fastened with the screw which is not shown in figure. Further, the right end of the inner shell 10e of the back wall portion 1e and the inner shell 10d of the right wall portion 1d are sealed and connected by a sealing agent or a corner member having a triangular section.

図３に示すように、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１２〜１４が取り付けられていると共に、中段の横枠１３と下段の横枠１４との間には、縦枠１５が取り付けられている。そして、図示はしないが、横枠１２〜１４の後側および縦枠１５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５が上から順に冷蔵室５ａ、野菜室５ｂ、横方向に並ぶ製氷室５ｃおよび仕様切替室５ｄ、冷凍室５ｅに仕切られるようになっている。   As shown in FIG. 3, three horizontal frames 12 to 14 that partition the front surface in the vertical direction are attached to the front surface of the heat insulating box 1, and the middle horizontal frame 13 and the lower horizontal frame 14 A vertical frame 15 is attached between the two. And although not illustrated, a heat insulating wall or a partition plate is provided on the rear side of the horizontal frames 12 to 14 and the rear side of the vertical frame 15, and the storage space 5 is sequentially formed from the top by these heat insulating walls and the partition plate. The refrigerator compartment 5a, the vegetable compartment 5b, the ice making compartment 5c arranged in the lateral direction, the specification switching compartment 5d, and the freezer compartment 5e are partitioned.

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５ａ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５ｅの奥部に形成される冷却室に配置される。そして、冷蔵室５ａ、野菜室５ｂ、横方向に並ぶ製氷室５ｃおよび仕様切替室５ｄ、冷凍室５ｅ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 at the back of the refrigerator compartment 5a, and the evaporator for refrigeration is It arrange | positions at the cooling chamber formed in the back | inner part of the freezer compartment 5e. Then, cold air cooled by two evaporators is blown to the refrigerator compartment 5a, vegetable compartment 5b, ice making compartment 5c, specification switching compartment 5d, and freezer compartment 5e arranged in the horizontal direction by a fan. It is configured to be cooled.

コンプレッサで圧縮された冷媒を液化するコンデンサパイプ１６は、断熱箱体１の各壁部１ａ〜１ｅのうち全部或いは一部の壁部の外殻９の内面（真空断熱パネル４側の面）に取り付けられ、外殻９を放熱板として凝縮熱を放出するようになっている。また、コンデンサパイプ１６の一部は防露パイプ１６ａとして断熱箱体１の前面開口部周縁、横枠１２〜１４および縦枠１５の裏側に配設され、それら断熱箱体１の前面開口部周縁、横枠１２〜１４および縦枠１５を温めて露が付くことを防止するようにしている。   The condenser pipe 16 for liquefying the refrigerant compressed by the compressor is formed on the inner surface (surface on the vacuum heat insulating panel 4 side) of the outer shell 9 of all or part of the wall portions 1a to 1e of the heat insulating box 1. It is attached and emits heat of condensation using the outer shell 9 as a heat sink. Further, a part of the condenser pipe 16 is disposed as a dew-proof pipe 16a on the front opening periphery of the heat insulation box 1, on the back side of the horizontal frames 12-14 and the vertical frame 15, and the front opening periphery of the heat insulation box 1 The horizontal frames 12 to 14 and the vertical frame 15 are heated to prevent dew.

コンデンサパイプ１６で凝縮された冷媒は図１に示す冷蔵用、冷凍用の２本のキャピラリチューブ１７を介して冷蔵用と冷凍用の各エバポレータに供給され、各エバポレータで蒸発した冷媒は同じく図１に示すサクションパイプ１８，１９を介してコンプレッサに吸引される。これらキャピラリチューブ１７とサクションパイプ１８，１９は断熱箱体１に収納空間５の外、本実施形態では、断熱箱体１の壁部１ａ〜１ｅの内部、例えば右側壁部１ｄと奥壁部１ｅとの連結部分である断熱箱体１の右横後側の稜角部分内部（右側壁部１ｄと奥壁部１ｅの端部どうしが交わる断熱箱体１の稜角部分内部）に位置して設けられている。   The refrigerant condensed in the condenser pipe 16 is supplied to the refrigeration and freezing evaporators via the two refrigeration and freezing capillary tubes 17 shown in FIG. 1, and the refrigerant evaporated in each evaporator is also shown in FIG. The suction pipes 18 and 19 shown in FIG. The capillary tube 17 and the suction pipes 18 and 19 are outside the storage space 5 in the heat insulating box 1, and in this embodiment, inside the walls 1a to 1e of the heat insulating box 1, for example, the right wall 1d and the back wall 1e. It is located in the ridge angle part inside the right lateral rear side of the heat insulation box 1 that is a connecting part (inside the ridge angle part of the heat insulation box 1 where the ends of the right wall part 1d and the back wall part 1e intersect). ing.

このキャピラリチューブ１７とサクションパイプ１８，１９の配設位置を真空断熱パネル４ｄ，４ｅとの関係でいえば、キャピラリチューブ１７とサクションパイプ１８，１９は、右側壁部１ｄの真空断熱パネル４ｄの後端（配管配置側の端）の延長上（外側）で、外箱２の端（右側壁部１ｄの外殻９ｄ）よりも内側にあり、且つ、奥壁部１ｅの真空断熱パネル４ｅの右端（配管配置側の端）の延長上（外側）で、外箱２の端（右側壁部１ｄの連結片１１）よりも内側に配置されている。   Speaking of the arrangement positions of the capillary tube 17 and the suction pipes 18 and 19 with respect to the vacuum heat insulation panels 4d and 4e, the capillary tube 17 and the suction pipes 18 and 19 are arranged after the vacuum heat insulation panel 4d on the right side wall 1d. On the extension (outside) of the end (end on the piping arrangement side), it is inside the end of the outer box 2 (outer shell 9d of the right side wall 1d) and the right end of the vacuum heat insulating panel 4e on the back wall 1e On the extension (outside) of the (end on the piping arrangement side), it is arranged inside the end of the outer box 2 (the connecting piece 11 of the right side wall 1d).

これら右側壁部１ｄの真空断熱パネル４ｄの後端および奥壁部１ｅの真空断熱パネル４ｅの右端は、それぞれ右側壁部１ｄの端（外殻９ｄの後端である連結片１１）および奥壁部１ｅの端（外殻９ｅの右端）にまで至らずそれよりも内側にあることから、両真空断熱パネル４ｄ，４ｅ間には空間が存在することとなり、その空間にキャピラリチューブ１７とサクションパイプ１８，１９を配置できるのである。   The rear end of the vacuum heat insulation panel 4d of the right side wall 1d and the right end of the vacuum heat insulation panel 4e of the back wall 1e are respectively the end of the right side wall 1d (the connecting piece 11 which is the rear end of the outer shell 9d) and the back wall. Since it does not reach the end of the portion 1e (the right end of the outer shell 9e) but is inside it, a space exists between the vacuum heat insulating panels 4d and 4e, and the capillary tube 17 and the suction pipe are in that space. 18 and 19 can be arranged.

この場合、断熱箱体１の右横後側の稜角部分内部には、剛性を有した例えば発泡性プラスチック製の角形の棒状断熱部材２０が収納されており、２本のサクションパイプ１８，１９はキャピラリチューブ１７と共に棒状断熱部材２０に形成された溝２０ａ内に挿入された状態になっている。また、棒状断熱部材２０と奥壁部１ｅの真空断熱パネル４ｅの右端との間には、例えばスポンジ状の断熱材２１が充填されている。従って、２本のサクションパイプ１８，１９とキャピラリチューブ１７とは、棒状断熱部材２０とスポンジ状断熱材２１とによって断熱された状態になっている。   In this case, a rectangular rod-like heat insulating member 20 made of, for example, foaming plastic having rigidity is accommodated inside the ridge corner portion on the right side rear side of the heat insulating box 1, and the two suction pipes 18, 19 are The capillary tube 17 is inserted into a groove 20 a formed in the rod-shaped heat insulating member 20 together with the capillary tube 17. Further, for example, a sponge-like heat insulating material 21 is filled between the rod-shaped heat insulating member 20 and the right end of the vacuum heat insulating panel 4e of the back wall portion 1e. Accordingly, the two suction pipes 18 and 19 and the capillary tube 17 are thermally insulated by the rod-like heat insulating member 20 and the sponge-like heat insulating material 21.

ただし、本実施形態においては、右側壁部１ｄの内殻１０ｄが長く延ばされていて、右側壁部１ｄ内において真空断熱パネル４ｄの後側に生じた空間と、奥壁部１ｅ内において真空断熱パネル４ｅの右側に生じた空間とは右側壁部１ｄの内殻１０ｄによって区画された如き形態になっており、棒状断熱部材２０内に納められたキャピラリチューブ１７とサクションパイプ１８，１９は、あたかも右側壁部１ｄ内において真空断熱パネル４ｄの後側に生じた空間に配置された形態となっている。   However, in the present embodiment, the inner shell 10d of the right side wall portion 1d is extended long, and a vacuum is generated in the back wall portion 1e and the space formed on the rear side of the vacuum heat insulating panel 4d in the right side wall portion 1d. The space formed on the right side of the heat insulating panel 4e is in a form as defined by the inner shell 10d of the right side wall 1d. The capillary tube 17 and the suction pipes 18, 19 housed in the rod-shaped heat insulating member 20 are: As if in the right side wall portion 1d, it is arranged in a space formed on the rear side of the vacuum heat insulation panel 4d.

棒状断熱部材２０は右側壁部１ｄの真空断熱パネル４ｄの後端と外殻９ｄの連結片１１との間の空間を埋めるような大きさの断面角形に形成され、また、棒状断熱部材２０の長さは右側壁部１ｄの下端から天井壁部１ａの後部の低段部分に至るまでの長さ寸法に設定されている。   The rod-shaped heat insulating member 20 is formed in a square cross section having a size so as to fill a space between the rear end of the vacuum heat insulating panel 4d of the right side wall portion 1d and the connecting piece 11 of the outer shell 9d. The length is set to a length dimension from the lower end of the right side wall portion 1d to the lower step portion of the rear portion of the ceiling wall portion 1a.

サクションパイプ１８，１９およびキャピラリチューブ１７を断熱箱体１の右横後側の稜角部分内部に配置する組み立ては次のようにして行う。なお、この組み立て方法は一例であり、これに限られない。まず、キャピラリチューブ１７およびサクションパイプ１８，１９を棒状断熱部材２０の溝２０ａ内に挿入して棒状断熱部材２０とユニット化（一体化）する。この場合、キャピラリチューブ１７およびサクションパイプ１８，１９と棒状断熱部材２０とをより強固に一体化すべく、接着剤により固着するようにしても良い。そして、図２に示すように、キャピラリチューブ１７およびサクションパイプ１８，１９の上端部分を棒状断熱部材２０の上端から上方に所要長さ突出させると共に、サクションパイプ１８，１９およびキャピラリチューブ１７の下端部分を断熱箱体１におけるエバポレータの配設位置に合せて棒状断熱部材２０の途中部分から所要長さだけ横方向に突出させておく。   The assembly in which the suction pipes 18 and 19 and the capillary tube 17 are arranged inside the ridge corner portion on the right lateral rear side of the heat insulation box 1 is performed as follows. In addition, this assembly method is an example and is not limited to this. First, the capillary tube 17 and the suction pipes 18 and 19 are inserted into the groove 20a of the rod-like heat insulating member 20 and unitized (integrated) with the rod-like heat insulating member 20. In this case, the capillary tube 17 and the suction pipes 18 and 19 and the rod-like heat insulating member 20 may be firmly fixed with an adhesive so as to be integrated more firmly. As shown in FIG. 2, the upper ends of the capillary tube 17 and the suction pipes 18, 19 protrude upward from the upper end of the rod-shaped heat insulating member 20, and the lower ends of the suction pipes 18, 19 and the capillary tube 17. Is projected in the lateral direction from the intermediate portion of the rod-shaped heat insulating member 20 in a lateral direction in accordance with the position of the evaporator in the heat insulating box 1.

次に、棒状断熱部材２０を右側壁部１ｄの外殻９ｄの内面に、後端部の連結片１１に接するようにして接着し、その後、真空断熱パネル４を外殻９ｄの内面に当該真空断熱パネル４の後端が棒状断熱部材２０に接するようにして接着し、最後に内殻１０を真空断熱パネル４に接着する。このとき、内殻９ｄに形成された切欠（図示せず）からサクションパイプ１８，１９およびキャピラリチューブ１７の一端側を外側に突出させるようにする。   Next, the rod-like heat insulating member 20 is bonded to the inner surface of the outer shell 9d of the right side wall 1d so as to contact the connecting piece 11 at the rear end, and then the vacuum heat insulating panel 4 is attached to the inner surface of the outer shell 9d. Bonding is performed so that the rear end of the heat insulating panel 4 is in contact with the rod-shaped heat insulating member 20, and finally the inner shell 10 is bonded to the vacuum heat insulating panel 4. At this time, the suction pipes 18 and 19 and one end side of the capillary tube 17 are projected outward from a notch (not shown) formed in the inner shell 9d.

そして、右側壁部１ｄと奥壁部１ｅとを結合することにより、棒状断熱部材２０と一体化されたキャピラリチューブ１７およびサクションパイプ１８，１９が断熱箱体１の右側後部稜角部分の内部に収納された状態になる。その後、天井壁部１ａと右側壁部１ｄおよび奥壁部１ｅとを組み合わせる際に、棒状断熱部材２０の上端、即ち右側壁部１ｄの上端から上方に突出するキャピラリチューブ１７およびサクションパイプ１８，１９を天井壁部１ａに形成された通し孔（図示せず）に通して機械室６内に導入するようにする。   And the capillary tube 17 and the suction pipes 18 and 19 integrated with the rod-shaped heat insulating member 20 are accommodated inside the right rear ridge angle portion of the heat insulating box 1 by joining the right wall portion 1d and the back wall portion 1e. It will be in the state. Thereafter, when the ceiling wall portion 1a is combined with the right side wall portion 1d and the back wall portion 1e, the capillary tube 17 and the suction pipes 18, 19 projecting upward from the upper end of the rod-like heat insulating member 20, that is, the upper end of the right side wall portion 1d. Is introduced into the machine room 6 through a through hole (not shown) formed in the ceiling wall 1a.

機械室６内に導入されたキャピラリチューブ１７は機械室６内に配置される三方弁を介してコンデンサパイプ１６の終端部に接続され、２本のサクションパイプ１８，１９は継ぎ手を介してコンプレッサの吸入口に接続される。そして、コンデンサパイプ１６からの液冷媒が三方弁の作用により冷蔵用のエバポレータと冷凍用のエバポレータに供給され、両エバポレータで蒸発した冷媒はサクションパイプ１８，１９を介してコンプレッサに吸入されるようになる。   The capillary tube 17 introduced into the machine room 6 is connected to the terminal end of the condenser pipe 16 via a three-way valve disposed in the machine room 6, and the two suction pipes 18 and 19 are connected to the compressor via joints. Connected to the inlet. Then, the liquid refrigerant from the condenser pipe 16 is supplied to the refrigeration evaporator and the refrigeration evaporator by the action of the three-way valve, and the refrigerant evaporated by both evaporators is sucked into the compressor via the suction pipes 18 and 19. Become.

このように本実施形態によれば、配管であるキャピラリチューブ１７、サクションパイプ１８，１９を収納空間５の外に配置したので、それら配管を収納空間５の内部に配置する場合とは異なり、収納空間５を配管のために狭めることが極力防止され、収納空間５を食品収納のために広く利用することができる。
また、サクションパイプ１８，１９には、低温度の冷媒が流れるが、本実施形態では、これらキャピラリチューブ１７、サクションパイプ１８，１９は断熱材２０，２１によって覆われているので、結露を防止することができる。 As described above, according to the present embodiment, the capillary tube 17 and the suction pipes 18, 19 that are pipes are arranged outside the storage space 5, so that the pipes are stored unlike the case where the pipes are arranged inside the storage space 5. Narrowing the space 5 for piping is prevented as much as possible, and the storage space 5 can be widely used for food storage.
In addition, although low temperature refrigerant flows through the suction pipes 18 and 19, in the present embodiment, the capillary tube 17 and the suction pipes 18 and 19 are covered with the heat insulating materials 20 and 21, so that condensation is prevented. be able to.

また、キャピラリチューブ１７、サクションパイプ１８，１９と、発泡性断熱材２０とはユニット化されているので、組み立て時などに取り扱い易くなる。しかも、発泡性断熱材２０は剛性を有しているので、軟質である場合に比べ、取り扱い易く、溝２０ａにキャピラリチューブ１７、サクションパイプ１８，１９を収納する作業などを容易に行うことができる。
また、断熱箱体１は複数の壁部１ａ〜１ｅを組み合わせて構成されるので、キャピラリチューブ１７、サクションパイプ１８，１９を右側壁部１ｄと奥壁部１ｅとの結合部分（稜角部）内に収納する作業を比較的容易に行うことができる。左右の壁部１ｃ、１ｄの壁厚が３５ｍｍ以下の場合に特に有効であり、本実施形態では、真空断熱パネル４はほぼ２０ｍｍで外殻７と内殻８の合計の厚さはほぼ１．５ｍｍで、合計２１．５ｍｍであって、左右の壁部１ｃ、１ｄの厚さは更に有効な２５ｍｍ以下の厚さで構成されている。 Moreover, since the capillary tube 17, the suction pipes 18 and 19, and the foamable heat insulating material 20 are unitized, it becomes easy to handle during assembly. Moreover, since the foamable heat insulating material 20 has rigidity, it is easier to handle than when it is soft, and the work of storing the capillary tube 17 and the suction pipes 18 and 19 in the groove 20a can be easily performed. .
Further, since the heat insulating box 1 is configured by combining a plurality of wall portions 1a to 1e, the capillary tube 17 and the suction pipes 18 and 19 are connected to the right wall portion 1d and the back wall portion 1e (in the corner portion). The work to be stored in the container can be performed relatively easily. This is particularly effective when the wall thicknesses of the left and right wall portions 1c and 1d are 35 mm or less. In this embodiment, the vacuum heat insulating panel 4 is approximately 20 mm, and the total thickness of the outer shell 7 and the inner shell 8 is approximately 1 mm. The total thickness is 21.5 mm, and the thickness of the left and right wall portions 1c and 1d is a more effective thickness of 25 mm or less.

（第２の実施形態）
図７は第２の実施形態を示す。この実施形態が前記第１の実施形態と異なるところは、キャピラリチューブ１７とサクションパイプ１８，１９の並べ方にある。つまり、この実施形態では、断面角形の棒状断熱部材２０の溝２０ａは、内箱３の稜角部から外箱２の稜角部に向かって対角線上に形成され、この溝２０ａ内に複数本の配管、本実施形態の場合、２本のキャピラリチューブ１７とサクションパイプ１８，１９の合計４本の配管が並べて設けられている。 (Second Embodiment)
FIG. 7 shows a second embodiment. This embodiment differs from the first embodiment in the arrangement of the capillary tube 17 and the suction pipes 18 and 19. That is, in this embodiment, the groove 20a of the rod-shaped heat insulating member 20 having a square cross section is formed diagonally from the ridge corner of the inner box 3 to the ridge corner of the outer box 2, and a plurality of pipes are formed in the groove 20a. In the case of this embodiment, a total of four pipes of two capillary tubes 17 and suction pipes 18 and 19 are provided side by side.

このように、キャピラリチューブ１７に比べて太いサクションパイプ１８，１９を断熱箱体１の稜角部分に対角線上に並べることにより、当該サクションパイプ１８，１９が真空断熱パネル４の厚さに比較して太い場合であっても、断熱箱体１の稜角部分に収容することができる。   In this way, by arranging the suction pipes 18 and 19 that are thicker than the capillary tube 17 diagonally at the ridges of the heat insulation box 1, the suction pipes 18 and 19 are compared with the thickness of the vacuum heat insulation panel 4. Even if it is thick, it can be accommodated in the ridge corner portion of the heat insulating box 1.

（第３の実施形態）
図８は第３の実施形態を示す。この実施形態が前記第１の実施形態と異なるところは、サクションパイプ１８，１９を２つの壁部が交わる稜角部分の内側に配置するのではなく、１つの壁部の端部、具体的には、例えば底壁部１ｂの前端部内側に配置したところにある。
即ち、底壁部１ｂの真空断熱パネル４ｂは、前端が外殻９ｂの前端に上向きに折り曲げ形成した連結片１１（外箱２の端）まで至らず、当該連結片１１から後方に離れた内方にあり、その連結片１１と真空断熱パネル４の前端との間に棒状断熱部材２２が配設されている。そして、この棒状断熱部材２２に形成された溝２２ａ内にサクションパイプ１８，１９がキャピラリチューブ１７と共に挿入されている。 (Third embodiment)
FIG. 8 shows a third embodiment. This embodiment differs from the first embodiment in that the suction pipes 18 and 19 are not arranged inside the ridge portion where the two wall portions intersect, but specifically the end of one wall portion, specifically For example, it exists in the place arrange | positioned inside the front-end part of the bottom wall part 1b.
In other words, the vacuum heat insulation panel 4b of the bottom wall portion 1b does not reach the connecting piece 11 (the end of the outer box 2) whose front end is bent upward at the front end of the outer shell 9b, and is an inner part separated rearward from the connecting piece 11. The rod-shaped heat insulating member 22 is disposed between the connecting piece 11 and the front end of the vacuum heat insulating panel 4. Suction pipes 18 and 19 are inserted together with the capillary tube 17 into a groove 22 a formed in the rod-like heat insulating member 22.

（第４の実施形態）
図９および図１０は第４の実施形態を示す。この実施形態は、キャピラリチューブ１７およびサクションパイプ１８，１９を収納空間５の外、具体的には断熱箱体１の外箱２の外に配置したものである。
即ち、図９に示すように、断熱箱体１の例えば右側後部の稜角部の外側には、覆い部材２３が取り付けられている。この覆い部材２３は、図１０に示すように、２つの面部２３ａ，２３ｂが直角に交わる断面Ｌ字状をなし、その２つの面部２３ａ，２３ｂの先端部は内側に湾曲していて各面部２３ａ，２３ｂが断面容器状になっている。 (Fourth embodiment)
9 and 10 show a fourth embodiment. In this embodiment, the capillary tube 17 and the suction pipes 18, 19 are arranged outside the storage space 5, specifically, outside the outer box 2 of the heat insulating box 1.
That is, as shown in FIG. 9, the covering member 23 is attached to the outside of the ridge corner of the right rear portion of the heat insulating box 1, for example. As shown in FIG. 10, the covering member 23 has an L-shaped cross section in which two surface portions 23a and 23b intersect at a right angle, and tip portions of the two surface portions 23a and 23b are curved inwardly, and each surface portion 23a. , 23b are in a container shape in cross section.

各面部２３ａ，２３ｂの内側には、発泡性断熱材２４が充填されており、その発泡性断熱材２４のうち一方の面部２３ｂ側には溝２４ａが形成されていて当該溝２４ａ内に２本のサクションパイプ１８，１９がキャピラリチューブ１７と共に収納されている。
覆い部材２３の各面部２３ａ．２３ｂには、上下方向に間欠的に凹部２５が形成されている。そして、一方の面部２３ａの凹部２５にセルフタッピングねじ２６を通し、当該セルフタッピングねじ２６を奥壁部１ｅの外殻９に形成された通し孔（図示せず）を通じて右側壁部１ｄの外殻９の連結片１１に螺着すると共に、他方の面部２３ｂの凹部２５にセルフタッピングねじ２６を通し、当該セルフタッピングねじ２６を右側壁部１ｄの外殻９ｄに螺着することによって覆い部材２３は断熱箱体１の右側後部の稜角部外側に固定されている。 Inside each of the surface portions 23a and 23b, a foamable heat insulating material 24 is filled, and a groove 24a is formed on one surface portion 23b side of the foamable heat insulating material 24, and two in the groove 24a. The suction pipes 18 and 19 are accommodated together with the capillary tube 17.
Each surface portion 23a. In 23b, recesses 25 are formed intermittently in the vertical direction. Then, the self-tapping screw 26 is passed through the concave portion 25 of the one surface portion 23a, and the self-tapping screw 26 is passed through a through hole (not shown) formed in the outer shell 9 of the back wall portion 1e. The cover member 23 is screwed to the connecting piece 11 of the N9, and a self-tapping screw 26 is passed through the recess 25 of the other surface portion 23b, and the self-tapping screw 26 is screwed to the outer shell 9d of the right side wall portion 1d. The heat insulation box 1 is fixed to the outside of the ridge corner at the right rear portion.

（他の実施形態）
これまでにいつくかの実施形態を説明したが、これらの実施形態は、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。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。 (Other embodiments)
Although several embodiments have been described so far, these embodiments are presented as examples and are 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. 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.

例えば断熱壁は、内殻と外殻との間を、真空断熱パネルとこの真空断熱パネル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。
断熱箱体は、予め箱状に形成した外箱と、予め箱状に形成した内箱とを、組み合わせて構成するものであっても良い。この場合、外箱と内箱とを組み合わせる前に、真空断熱パネルを外箱の内面、或いは内箱の外面に貼り付けておくことで外箱と内箱との間に真空断熱パネルを配設する。
配管を壁部１ａ〜１ｅの内部に設ける場合、２つの壁部の結合部分を構成する稜角部内側ばかりでなく、例えば図１において、奥壁部１ｅの真空断熱パネル４ｅの右端と右側壁部１ｄの内殻１０ｄとの間の空間内に設けるようにしても良い。
棒状断熱部材２０，２２は軟質のスポンジ状のものであっても良い。
配管はキャピラリチューブ、サクションパイプに限られない。 For example, the heat insulating wall may be one in which the space between the inner shell and the outer shell is filled with a vacuum heat insulating panel and a foam heat insulating material filled inside or outside the vacuum heat insulating panel.
The heat insulation box may be configured by combining an outer box formed in a box shape in advance and an inner box formed in a box shape in advance. In this case, before combining the outer box and the inner box, the vacuum heat insulating panel is disposed between the outer box and the inner box by attaching the vacuum heat insulating panel to the inner surface of the outer box or the outer surface of the inner box. To do.
When the piping is provided inside the wall portions 1a to 1e, not only the inside of the ridge corner portion constituting the connecting portion of the two wall portions, but also the right end and the right side wall portion of the vacuum heat insulating panel 4e of the back wall portion 1e in FIG. It may be provided in the space between the inner shell 10d of 1d.
The rod-like heat insulating members 20 and 22 may be soft sponges.
Piping is not limited to capillary tubes and suction pipes.

図面中、１は断熱箱体、２は外箱、３は内箱、４は真空断熱パネル収納空間、５は収納空間、９は外殻、１０は内殻、１７はキャピラリチューブ（配管）、１８，１９はサクションパイプ（配管）、２０は棒状断熱部材、２１は断熱材、２２は棒状断熱部材、２３は覆い部材、２４は発泡性断熱材を示す。   In the drawings, 1 is a heat insulating box, 2 is an outer box, 3 is an inner box, 4 is a vacuum heat insulating panel storage space, 5 is a storage space, 9 is an outer shell, 10 is an inner shell, 17 is a capillary tube (pipe), Reference numerals 18 and 19 denote suction pipes (pipe), 20 denotes a rod-like heat insulating member, 21 denotes a heat insulating material, 22 denotes a rod-like heat insulating member, 23 denotes a covering member, and 24 denotes a foaming heat insulating material.

Claims (3)

内部空間を収納空間とした断熱箱体であって、天井壁部、底壁部、左側壁部、右側壁部および奥壁部を有した断熱箱体を冷蔵庫本体とした冷蔵庫であって、
少なくとも前記各壁部のうち前記左側壁部、前記右側壁部および前記奥壁部の内部に真空断熱パネルが設けられ、
前記真空断熱パネルの端部から離間した状態で前記断熱箱体の稜角部分の内部であって隣接する前記真空断熱パネルの間に設けられ前記断熱箱体の稜角部に沿って上下方向に延びる配管と、
前記収納空間の外でかつ前記断熱箱体の稜角部分の内部に設けられ前記配管を覆うとともに前記真空断熱パネルの端部から離間させる部材と、
前記断熱箱体の壁部の内部に設けられ前記配管を覆う断熱材と、
を備える冷蔵庫。 A heat-insulating main body in which the inner space and the storage space, the ceiling wall portion, a bottom wall, left side wall, a refrigerator and the refrigerator body a heat insulating box body having a right sidewall and back wall portion,
A vacuum heat insulation panel is provided inside the left side wall part, the right side wall part and the back wall part at least among the respective wall parts,
Piping extending in the vertical direction along the ridge angle portion of the heat insulation box provided inside the ridge angle portion of the heat insulation box and between the adjacent vacuum heat insulation panels in a state of being separated from the end of the vacuum heat insulation panel When,
A member that is provided outside the storage space and inside the ridge portion of the heat insulation box and covers the piping and is separated from the end of the vacuum heat insulation panel;
A heat insulating material provided inside the wall portion of the heat insulating box and covering the pipe ;
Refrigerator. 前記配管は、前記断熱箱体を構成する内箱の稜角部から前記断熱箱体を構成する外箱の稜角部に向かって対角線上に配置されている、
請求項１に記載の冷蔵庫。 The pipe is placed diagonally toward the dihedral angle portion from dihedral angle portion of the inner box of outer box constituting the insulating box body constituting the heat insulating box body,
The refrigerator according to claim 1. 前記真空断熱パネルの端部は、隣接する前記側壁部の連結部分から離間している、
請求項１又は２に記載の冷蔵庫。 The end portion of the vacuum heat insulation panel is separated from the connecting portion of the adjacent side wall portions,
The refrigerator according to claim 1 or 2.
JP2016195606A 2016-10-03 2016-10-03 refrigerator Active JP6316367B2 (en)

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