JP3902556B2

JP3902556B2 - Storage

Info

Publication number: JP3902556B2
Application number: JP2003036994A
Authority: JP
Inventors: 英樹大湯; 純一布留川; 裕一岡部
Original assignee: Sanyo Electric Co Ltd
Current assignee: Sanyo Electric Co Ltd
Priority date: 2003-02-14
Filing date: 2003-02-14
Publication date: 2007-04-11
Anticipated expiration: 2023-02-14
Also published as: JP2004245526A

Description

【０００１】
【発明の属する技術分野】
本発明は、冷凍サイクルによって庫内が冷却される貯蔵庫本体の断熱材中に埋設される冷媒パイプの保持に関する。
【０００２】
【従来の技術】
冷凍サイクルによって庫内が冷却される貯蔵庫本体の断熱材中に冷凍サイクルのサクションパイプを埋設する場合、このサクションパイプが貯蔵庫本体の内箱又は外箱に接触するとその部分に結露が発生する。これを防止するために、サクションパイプにポリエチレンフォーム等の断熱フォームを巻く技術がある。しかし、サクションパイプが内箱又は外箱に接触する部位が特定できないため、この断熱フォームを巻く範囲が多くなる欠点があり、これを改良する技術として、外箱背面カバーのペコツキ防止用スペーサにサクションパイプを保持する爪部を形成して、この爪部で断熱材中にサクションパイプを保持するものがある（特許文献１）。
【０００３】
この特許文献１においては、サクションパイプを断熱材中に配設するための透孔を外箱の背板に形成し、断熱材の充填前にはこの透孔をキャップによって塞ぐ必要が生じる。このように、サクションパイプの保持のために、余分な構造が必要となる。
【０００４】
【特許文献１】
特開平０５−３２２４３５号（第１〜2頁、図１〜５）
【０００５】
【発明が解決しようとする課題】
本発明は、このような点に鑑みて、サクションパイプに簡単に取り付けることができるパイプ固定具を発明し、これによってサクションパイプを内箱と外箱間の中間に保持できる技術を提供するものである。
【０００６】
【課題を解決するための手段】
本発明は、内箱と外箱の間に断熱材が充填され冷凍サイクルによって庫内が冷却される貯蔵庫本体において、中央部に前記冷凍サイクルのサクションパイプを保持するパイプ保持部とこのパイプ保持部を取り囲む円形状の外壁とが前記パイプ保持部のパイプ挿入開口を形成する左右壁で連なるように合成樹脂で一体形成したパイプ固定具を設け、このパイプ固定具は、前記円形状の外壁が前記内箱と外箱の間隔に等しいか若干小さい寸法であり、前記パイプ挿入開口が前記冷凍サイクルのサクションパイプの挿入に伴って広がる弾性力を備え、前記パイプ保持部の前記パイプ挿入開口の反対側の周囲壁と前記外壁との間は連なり部をもたない前記断熱材の充填空洞部を形成し、前記パイプ保持部から脱落する前記サクションパイプを受け止めるよう前記パイプ挿入開口の手前側に前記パイプ挿入開口に対向し前記パイプ保持部へ挿入される前記サクションパイプによって押し退けられる弾力性を有するパイプ受け部を一体成形しており、前記内箱と外箱の間に配置した前記パイプ固定具の前記円形状の外壁によって、前記パイプ保持部へ挿入された前記サクションパイプが前記外箱と前記内箱との中央部に配置されたことを特徴とする。
【０００７】
このように、パイプ固定具のパイプ挿入開口の弾性力を利用してサクションパイプと嵌め合うため、取り付け場所に拘わらずサクションパイプへのパイプ固定具の取り付けが容易となり、サクションパイプを外箱と内箱との間の中央部で断熱材中に配置できるため、サクションパイプからの冷熱が外箱へ伝わり難く、外箱にパイプ固定具が接触しても外箱の外面に結露を生じることを防止できる。また、円形状外壁の一部にパイプ挿入開口を形成しているため、パイプ固定具が外箱に当接して押されても弾力作用が効果的となり、外箱に押し圧痕を生じない。また、弾力性のパイプ受け部によって、パイプ保持部へのサクションパイプの挿入による取り付けが容易であると共に、挿入したサクションパイプの脱落を防止するため、サクションパイプが脱落して外箱や内箱に接触することがない。
【０００８】
また、本発明は、内箱と外箱の間に断熱材が充填され冷凍サイクルによって庫内が冷却される貯蔵庫本体において、中央部にパイプ保持部を形成しこのパイプ保持部を取り囲む円形状の外壁とが前記パイプ保持部のパイプ挿入開口を形成する左右壁で連なるように合成樹脂で一体形成したパイプ固定具を設け、このパイプ固定具は、前記円形状の外壁が前記内箱と外箱の間隔に等しいか若干小さい寸法であり、前記パイプ保持部は、前記パイプ挿入開口に連通形成した前記冷凍サイクルのサクションパイプの保持部とその奥側に前記サクションパイプの保持部に連通した前記冷凍サイクルのキャピラリチューブの保持部を備え、前記パイプ挿入開口が前記冷凍サイクルのサクションパイプの挿入に伴って広がる弾性力を備え、前記パイプ保持部の前記パイプ挿入開口の反対側の周囲壁と前記外壁との間は連なり部をもたない前記断熱材の充填空洞部を形成し、前記パイプ保持部から脱落する前記サクションパイプを受け止めるよう前記パイプ挿入開口の手前側に前記パイプ挿入開口に対向し前記パイプ保持部へ挿入される前記サクションパイプによって押し退けられる弾力性を有するパイプ受け部を一体成形しており、前記内箱と外箱の間に上下に間隔を保って配置した前記パイプ固定具の前記円形状の外壁によって、前記パイプ挿入開口が前記内箱側に向いた状態で、且つ前記パイプ保持部へ挿入された前記サクションパイプと前記キャピラリチューブを前記外箱と前記内箱との中央部に配置したことを特徴とする。
【０００９】
これによって、サクションパイプとキャピラリチューブが外箱と内箱との間の中央部で断熱材中に配置できると共に、サクションパイプからの冷熱は、前記空洞内に充填される断熱材を介して外箱に伝わる経路と、この固定具を介して外箱に伝わる経路が存在する。断熱材を介して外箱に伝わる経路は、当然、断熱材により熱の伝わりは小さくなる。また、固定具自体を経由する経路は、先ず、パイプ挿入開口の左右壁から内箱側へ伝わり、その後に円形状の外壁に沿って外箱側へ伝わるため、サクションパイプからの冷熱は大きく回り込む通路を通って外箱に到達しなければならないので、外箱に対するサクションパイプからの冷熱の影響を減少できる。また、弾力性のパイプ受け部によって、パイプ保持部へのサクションパイプの挿入による取り付けが容易であると共に、挿入したサクションパイプの脱落を防止するため、サクションパイプが脱落して外箱や内箱に接触することがない。
【００１０】
また、本発明は、前記パイプ受け部は、前記パイプ挿入開口を形成する左右壁の一方側で前記円形状の外壁から延びて、前記パイプ挿入開口の手前側で前記パイプ挿入開口に対向して、前記パイプ保持部から脱落する前記サクションパイプを受け止めるように形成したことを特徴とする。
【００１１】
これによって、弾力性のパイプ受け部によって、パイプ保持部へのサクションパイプの挿入による取り付けが容易であると共に、サクションパイプが脱落して外箱や内箱に接触することがない。
【００１２】
また本発明は、前記パイプ挿入開口を形成する左右壁は、前記パイプ挿入開口から前記円形状の外壁に向けて広がった形状をなし、前記パイプ受け部は、前記パイプ挿入開口を形成する左右壁の一方側で前記円形状の外壁からこの広がった左右壁間に延びて、前記パイプ挿入開口の手前側で前記パイプ挿入開口に対向して、前記パイプ保持部から脱落する前記サクションパイプを受け止めるように形成したことを特徴とする。このため、弾力性のパイプ受け部によって、パイプ保持部へのサクションパイプの挿入による取り付けが容易であると共に、サクションパイプが脱落して外箱や内箱に接触することがない。
【００１４】
【発明の実施の形態】
次に、本発明の実施の形態について説明する。各図は本発明の実施形態を示しており、図１は本発明に係る貯蔵庫本体の正面斜視面、図２は図１においてパイプ固定具を設けた部分の断面図、図３は図２のＡ−Ａ断面図、図４は図２の裏側から見た図、図５はパイプ固定具の一方側の面を示す図である。
【００１５】
これらの図において、1は貯蔵庫の一つである冷蔵庫であり、前面開口の貯蔵庫本体である冷蔵庫本体２内を区画して複数の貯蔵室を形成し、これら各貯蔵室の前面は扉で開閉できる構成である。この冷蔵庫において、断熱箱体を構成する冷蔵庫本体２は、外箱（外壁板）３と内箱（内壁板）４との間に形成される断熱材充填空間に発泡性断熱材５を充填した断熱構造である。冷蔵庫本体２内には、貯蔵室として上から冷凍室６、冷蔵室７が区画して設けられ、冷凍室６の前面開口と冷蔵室７の前面開口は、冷蔵庫本体２の右側または左側にそれぞれ上下配置のヒンジ装置にて横方向に回動して開閉される冷凍室扉８と冷蔵室扉９にて開閉される。
【００１６】
冷凍室６と冷蔵室７は、冷凍室６の後部に配置した冷凍サイクルの冷媒蒸発器（冷却器）１０で冷却した冷気を送風機１１によって循環することによって、所定の温度に冷却される。１２は冷凍サイクルの冷媒圧縮機であり、圧縮された冷媒は凝縮器１３で凝縮された後、キャピラリチューブ１４で減圧されて冷媒蒸発器１０へ流入する。冷媒蒸発器１０で蒸発した冷媒はサクションパイプ１５を通って冷媒圧縮機１２へ帰還する循環を行う。
【００１７】
サクションパイプ１５は、冷媒蒸発器１０から冷蔵庫本体２の背面壁２Ａを通って冷蔵庫本体２の下部に配置した冷媒圧縮機１２へ至る。このサクションパイプ１５は背面壁２Ａを構成する外箱（外壁板）３と内箱（内壁板）４との間の断熱材充填空間の中間部分に配置するために、パイプ固定具２０が用いられる。パイプ固定具２０は、中央部にパイプ保持部２１を形成し、このパイプ保持部２１を取り囲むように、一部にパイプ保持部２１へ通じるパイプ挿入開口２２を形成して円形状の外壁２３を形成し、これらが合成樹脂で一体成形される。このため、パイプ固定具２０は、パイプ挿入開口２２が冷凍サイクルのサクションパイプ１５の挿入に伴って広がる弾性力を備え、パイプ保持部２１のパイプ挿入開口２２の反対側の周囲壁と外壁２３との間は連なり部をもたない断熱材５の充填空洞部３０を形成している。この好ましい形態は、パイプ保持部２１と円形状の外壁２３との連絡は、パイプ保持部２１のパイプ挿入開口２２を形成する左右壁が円形状の外壁２３に連なる部分だけである。このパイプ固定具２０を成形する合成樹脂は、熱伝導が悪いポリプロピレンが好ましい。
【００１８】
パイプ固定具２０は、円形状の外壁２３の外径は、略冷蔵庫本体２の背面壁２Ａを構成する外箱（外壁板）３と内箱（内壁板）４との間の間隔に配置される大きさに形成される。この場合、好ましくは、背面壁２Ａを構成する外箱（外壁板）３と内箱（内壁板）４との間隔に等しいか、若しくは若干小さい寸法である。それは、冷蔵庫本体２の背面壁２Ａを構成する外箱（外壁板）３と内箱（内壁板）４との間に配置された状態で発泡性断熱材５を充填するが、その充填の際に外箱（外壁板）３と内箱（内壁板）４が治具によって押さえられることによって、外箱３にパイプ固定具２０による押し圧痕ができることを防止するためである。
【００１９】
パイプ保持部２１は、サクションパイプ１５を保持する部分である。しかし、キャピラリチューブ１４とサクションパイプ１５を熱交換状態に接触させる場合がある。この場合には、パイプ保持部２１にサクションパイプ１５の保持部２１Ａと、この保持部２１Ａの奥側に連通して外側へキャピラリチューブ１４の保持部２１Ｂを形成する。
【００２０】
また、パイプ固定具２０は、パイプ保持部２１のパイプ挿入開口２２の反対側の周囲壁と外壁２３との間には断熱材５が充填される空洞部３０を形成しているため、この空洞部３０内には、パイプ固定具２０の周辺の断熱材５と一連の断熱材の層が形成される。
【００２１】
パイプ固定具２０の取り付けは、まず、キャピラリチューブ１４をパイプ挿入開口２２からキャピラリチューブ１４の保持部２１Ｂへ挿入し、その後にサクションパイプ１５をパイプ挿入開口２２からサクションパイプ１５の保持部２１Ａへ挿入する。この場合、パイプ挿入開口２２の幅は、キャピラリチューブ１４の外径よりも十分大きいが、サクションパイプ１５の外径よりも若干小さい。これは、小径のキャピラリチューブ１４は屈曲などによって損傷しやすいために、殆ど抵抗なく挿入できるようにし、キャピラリチューブ１４に比して大径のサクションパイプ１５は充分な剛性を有するため、パイプ挿入開口２２の幅を押し広げながら保持部２１Ａへ収まるように構成している。保持部２１Ａでは、保持部２１Ａの左右壁の弾力性によってサクションパイプ１５を保持するようにしてもよい。
【００２２】
このようにして、サクションパイプ１５が保持部２１Ａへ収まることによって、キャピラリチューブ１４はサクションパイプ１５によって保持部２１Ｂに収まった状態を維持し、キャピラリチューブ１４とサクションパイプ１５は熱交換可能に接触した状態を保つ。なお、キャピラリチューブ１４とサクションパイプ１５は予め溶接などによって熱交換状態に接触させた形態で、パイプ挿入開口２２を通してキャピラリチューブ１４を保持部２１Ｂに収めると共に、サクションパイプ１５を保持部２１Ａへ収めるようにパイプ固定具２０を取り付けることができる。
【００２３】
上記のように、パイプ保持部２１と円形状の外壁２３との連絡は、パイプ保持部２１のパイプ挿入開口２２を形成する左右壁が円形状の外壁２３に連なる部分だけであるため、サクションパイプ１５がパイプ挿入開口２２の幅を押し広げながら保持部２１Ａへ収まり易い。このように、保持部２１Ａの左右両側の壁がサクションパイプ１５によって可動するように、パイプ固定具２０は弾力性を有する。パイプ固定具２０によってキャピラリチューブ１４とサクションパイプ１５が、冷蔵庫本体２の背面壁２Ａを構成する外箱（外壁板）３と内箱（内壁板）４との中間に配置されるようにするために、図１には２個のパイプ固定具２０でキャピラリチューブ１４とサクションパイプ１５を保持しているが、更に多くのパイプ固定具２０を間隔を保って配置することでもよい。
【００２４】
このように、パイプ固定具２０によってキャピラリチューブ１４とサクションパイプ１５が、冷蔵庫本体２の背面壁２Ａを構成する外箱（外壁板）３と内箱（内壁板）４との中間に配置されるが、この配置状態では、図のようにパイプ挿入開口２２が内箱（内壁板）４側に向いた状態である。
【００２５】
パイプ固定具２０によってキャピラリチューブ１４とサクションパイプ１５が、冷蔵庫本体２の背面壁２Ａを構成する外箱（外壁板）３と内箱（内壁板）４との中間に配置された状態で、外箱（外壁板）３と内箱（内壁板）４との間の断熱材充填空間に発泡性断熱材５を充填する。これによって、発泡性断熱材５はパイプ固定具２０の空洞部３０を貫通し、パイプ固定具２０は外箱（外壁板）３と内箱（内壁板）４との間で発泡性断熱材５中に埋設される。そしてキャピラリチューブ１４とサクションパイプ１５が、外箱（外壁板）３と内箱（内壁板）４の中間部で発泡性断熱材５中に埋設される。
【００２６】
これによって、サクションパイプ１５からの冷熱は、空洞３０内に充填される断熱材５を介して外箱（外壁板）３に伝わる経路と、このパイプ固定具２０を介して外箱（外壁板）３に伝わる経路が存在する。断熱材５を介して外箱（外壁板）３に伝わる経路は、当然、断熱材５により熱の伝わりは小さくなる。また、パイプ固定具２０自体を経由する経路は、先ず、パイプ挿入開口２２の左右壁から内箱（内壁板）４方向へ伝わり、その後に円形状の外壁２３に沿って外箱（外壁板）３側へ伝わるため、サクションパイプ１５からの冷熱は大きく回り込む通路を通って外箱（外壁板）３に到達しなければならないので、外箱（外壁板）３に対するサクションパイプ１５からの冷熱の影響を減少できる。
【００２７】
冷蔵庫の組み立て作業による振動等によって、サクションパイプ１５が保持部２１Ａから脱落した場合にも、サクションパイプ１５が外箱（外壁板）３と内箱（内壁板）４との中間に留まるようにするために、パイプ固定具２０は、保持部２１Ａのパイプ挿入開口２２の手前側（正面側）に、パイプ挿入開口２２に対向してパイプ受け部２４を一体成形している。このパイプ受け部２４は弾力性を備えており、サクションパイプ１５は、図５で左方へ押し退けつつパイプ挿入開口２２から保持部２１Ａへ収まる。万一、サクションパイプ１５が保持部２１Ａから脱落しても、パイプ受け部２４で受け止められ、外箱（外壁板）３や内箱（内壁板）４に接触することはない。
【００２８】
また、パイプ固定具２０は、円形状の外壁２３を熱容量が小さい薄壁に形成しており、この薄壁の内側の複数箇所に厚肉部２５を形成している。このため、薄壁の円形状外壁によってパイプ固定具の弾力性がより効果的となり、外箱に当接したときにも外箱に押し圧痕を生じない。
【００２９】
このように本発明のパイプ固定具２０によって、キャピラリチューブ１４とサクションパイプ１５が、冷蔵庫本体２の背面壁２Ａを構成する外箱（外壁板）３と内箱（内壁板）４との中間に配置され、サクションパイプ１５による外箱（外壁板）３の外面への結露も防止できる。また、本発明のパイプ固定具２０の取り付けは、冷蔵庫本体２の背面壁２Ａを構成する外箱（外壁板）３に特別な孔を形成することなく行えるものである。
【００３０】
本発明は、上記実施形態に限定されず、本発明の技術的範囲を逸脱しない限り種種の変更が考えられ、それに係る種種の実施形態を包含するものである。
【００３１】
【発明の効果】
本発明のによって、パイプ固定具のパイプ挿入開口の弾性力を利用してサクションパイプと嵌め合うため、取り付け場所に拘わらずサクションパイプへのパイプ固定具の取り付けが容易となり、サクションパイプを外箱と内箱との中間で断熱材中に配置できるため、サクションパイプからの冷熱が外箱へ伝わり難く、外箱にパイプ固定具が接触しても外箱の外面に結露を生じることを防止できる。また、円形状外壁の一部にパイプ挿入開口を形成しているため、パイプ固定具が外箱に当接して押されても弾力作用が効果的となり、外箱に押し圧痕を生じない。
【００３２】
また、請求項２の発明によって、サクションパイプからの冷熱は、前記空洞内に充填される断熱材を介して外箱に伝わる経路と、この固定具を介して外箱に伝わる経路が存在する。断熱材を介して外箱に伝わる経路は、当然、断熱材により熱の伝わりは小さくなる。また、固定具自体を経由する経路は、先ず、パイプ挿入開口の左右壁から内箱（内壁板）方向へ伝わり、その後に円形状の外壁に沿って外箱（外壁板）側へ伝わるため、サクションパイプからの冷熱は大きく回り込む通路を通って外箱（外壁板）に到達しなければならないので、外箱（外壁板）に対するサクションパイプからの冷熱の影響を減少できる。
【００３３】
また、請求項３の発明では、キャピラリチューブとサクションパイプとを熱交換状態に保持することと、サクションパイプを外箱と内箱との中間で断熱材中に配置することが、前記パイプ固定具によって達成できる。
【００３４】
また、請求項４の発明では、円形状の外壁の薄肉と厚肉部によって、サクションパイプが冷却されたときにも、パイプ固定具が外箱に接触してもその接触部分に結露を生じることを抑制できる。また、薄壁の円形状外壁によってパイプ固定具の弾力性がより効果的となり、外箱に当接したときにも外箱に押し圧痕を生じない。
【００３５】
また、請求項５の発明によって、ポリエチレンフォームをサクションパイプに巻いた場合よりも断熱効果がよいため、外箱に対する結露防止効果が優れる。
【図面の簡単な説明】
【図１】本発明に係る貯蔵庫本体の正面斜視面である。
【図２】図１においてパイプ固定具を設けた部分の断面図である。
【図３】図２のＡ−Ａ断面図である。
【図４】図２の裏側から見た図である。
【図５】本発明のパイプ固定具の一方側の面を示す図である。
【符号の説明】
１・・・冷蔵庫
２・・・冷蔵庫本体
３・・・外箱（外壁板）
４・・・内箱（内壁板）
５・・・発泡性断熱材
１４・・キャピラリチューブ
１５・・サクションパイプ
２０・・パイプ固定具
２１・・パイプ保持部
２１Ａ・・サクションパイプの保持部
２１Ｂ・・キャピラリチューブの保持部
２２・・パイプ挿入開口
２３・・外壁
２４・・パイプ受け部
２５・・厚肉部
３０・・空洞部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to holding a refrigerant pipe embedded in a heat insulating material of a storage body whose interior is cooled by a refrigeration cycle.
[0002]
[Prior art]
When the suction pipe of the refrigeration cycle is embedded in the heat insulating material of the storage body whose interior is cooled by the refrigeration cycle, condensation occurs at the portion when the suction pipe contacts the inner box or the outer box of the storage body. In order to prevent this, there is a technique of winding a heat insulating foam such as polyethylene foam around a suction pipe. However, since the part where the suction pipe contacts the inner box or the outer box cannot be specified, there is a disadvantage that the area to which the heat insulating foam is wound increases, and as a technique for improving this, suction is applied to the spacer for preventing the back cover of the outer box. There exists a thing which forms the nail | claw part holding a pipe and hold | maintains a suction pipe in a heat insulating material by this nail | claw part (patent document 1).
[0003]
In Patent Document 1, it is necessary to form a through hole for disposing the suction pipe in the heat insulating material on the back plate of the outer box, and to close the through hole with a cap before filling the heat insulating material. Thus, an extra structure is required for holding the suction pipe.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 05-322435 (pages 1 and 2, FIGS. 1 to 5)
[0005]
[Problems to be solved by the invention]
In view of these points, the present invention invents a pipe fixture that can be easily attached to a suction pipe, and thereby provides a technique that can hold the suction pipe in the middle between the inner box and the outer box. is there.
[0006]
[Means for Solving the Problems]
The present invention relates to a storage body in which a heat insulating material is filled between an inner box and an outer box and the inside of the storage is cooled by a refrigeration cycle, and a pipe holding unit that holds a suction pipe of the refrigeration cycle at the center, and the pipe holding unit A pipe fixture integrally formed with a synthetic resin so that a circular outer wall surrounding the pipe is continuous with left and right walls forming a pipe insertion opening of the pipe holding portion, and the pipe outer fixture is provided with the circular outer wall The pipe insertion opening has an elastic force that expands with the insertion of the suction pipe of the refrigeration cycle , and has a size that is equal to or slightly smaller than the interval between the inner box and the outer box. receiving the suction pipe between the peripheral wall and the outer wall of forming the filling cavities of the insulation material without a contiguous portion off from the pipe holding portion of A pipe receiving portion that is elastically pushed by the suction pipe inserted into the pipe holding portion and is opposed to the pipe insertion opening is formed integrally with the inner box and the outer box. The suction pipe inserted into the pipe holding part is arranged in the center part of the outer box and the inner box by the circular outer wall of the pipe fixing member arranged between the outer box and the inner box .
[0007]
As described above, the elastic force of the pipe insertion opening of the pipe fixture is used to fit the suction pipe, so that it is easy to attach the pipe fixture to the suction pipe regardless of the installation location . Since it can be placed in the heat insulating material at the center of the box, it is difficult for cold heat from the suction pipe to be transmitted to the outer box, preventing condensation on the outer surface of the outer box even if the pipe fixture contacts the outer box. it can. In addition, since the pipe insertion opening is formed in a part of the circular outer wall, even if the pipe fixing tool is pressed against the outer box, the elastic action is effective, and no pressing impression is generated in the outer box. In addition, the elastic pipe receiving part is easy to install by inserting the suction pipe into the pipe holding part, and in order to prevent the inserted suction pipe from falling off, the suction pipe is dropped and put into the outer box or inner box. There is no contact.
[0008]
The present invention also provides a storage body which is inside the refrigerator is cooled by the heat insulating material is filled refrigeration cycle between the inner box and outer box, forming a pipe holding portion in the central portion a circular surrounding the pipe holding portion A pipe fixture integrally formed of synthetic resin is provided so that the outer wall is connected to the left and right walls forming the pipe insertion opening of the pipe holding portion, and the circular outer wall is formed of the inner box and the outer box. The pipe holding part has a suction pipe holding part of the refrigeration cycle formed in communication with the pipe insertion opening and the refrigeration part connected to the suction pipe holding part on the back side thereof. a holding portion of the cycle of the capillary tube, an elastic force which the pipe insertion opening spreads along with the insertion of the suction pipe of the refrigeration cycle, the pipe holding Opposite between the peripheral wall and the outer wall form a filled cavity of the insulation material without a contiguous portion, the to receive the suction pipe pipe from falling off the pipe holding portion of the pipe insertion opening An elastic pipe receiving portion that is opposed to the pipe insertion opening and is pushed away by the suction pipe inserted into the pipe holding portion is formed integrally on the front side of the insertion opening, and is formed between the inner box and the outer box. The suction pipe and the capillary inserted into the pipe holding part with the pipe insertion opening facing the inner box side by the circular outer wall of the pipe fixture arranged at intervals in the vertical direction The tube is arranged at the center of the outer box and the inner box.
[0009]
As a result, the suction pipe and the capillary tube can be arranged in the heat insulating material at the central portion between the outer box and the inner box, and the cold heat from the suction pipe is passed through the heat insulating material filled in the cavity. There is a route that travels to the outer box and a route that travels to the outer box through this fixture. Naturally, the heat transfer through the path through the heat insulating material is reduced by the heat insulating material. In addition, since the path passing through the fixture itself is first transmitted from the left and right walls of the pipe insertion opening to the inner box side, and then to the outer box side along the circular outer wall, the cold heat from the suction pipe wraps around greatly. Since the outer box must be reached through the passage, the influence of the cold heat from the suction pipe on the outer box can be reduced. In addition, the elastic pipe receiving part is easy to install by inserting the suction pipe into the pipe holding part, and in order to prevent the inserted suction pipe from falling off, the suction pipe is dropped and put into the outer box or inner box. There is no contact.
[0010]
Further, according to the present invention, the pipe receiving portion extends from the circular outer wall on one side of the left and right walls forming the pipe insertion opening, and faces the pipe insertion opening on the front side of the pipe insertion opening. The suction pipe is configured to receive the suction pipe falling off the pipe holding portion .
[0011]
As a result, the elastic pipe receiving portion facilitates the attachment by inserting the suction pipe into the pipe holding portion, and the suction pipe does not fall out and come into contact with the outer box or the inner box.
[0012]
Further, according to the present invention, the left and right walls forming the pipe insertion opening have a shape extending from the pipe insertion opening toward the circular outer wall, and the pipe receiving portion forms the left and right walls forming the pipe insertion opening. The suction pipe that extends from the circular outer wall on one side of the pipe to the left and right walls and faces the pipe insertion opening on the front side of the pipe insertion opening and drops from the pipe holding portion is received. It is characterized by being formed . For this reason, the elastic pipe receiving part can be easily attached by inserting the suction pipe into the pipe holding part, and the suction pipe does not fall out and come into contact with the outer box or the inner box.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described. 1 shows an embodiment of the present invention, FIG. 1 is a front perspective view of a storage body according to the present invention, FIG. 2 is a cross-sectional view of a portion provided with a pipe fixture in FIG. 1, and FIG. AA sectional view, FIG. 4 is a view seen from the back side of FIG. 2, and FIG. 5 is a view showing a surface of one side of the pipe fixture.
[0015]
In these figures, reference numeral 1 denotes a refrigerator as one of storages, and the inside of the refrigerator body 2 which is a storage body having a front opening is partitioned to form a plurality of storage rooms. The fronts of these storage rooms are opened and closed by doors. It is a possible configuration. In this refrigerator, the refrigerator main body 2 constituting the heat insulating box body is filled with a foamable heat insulating material 5 in a heat insulating material filling space formed between the outer box (outer wall plate) 3 and the inner box (inner wall plate) 4. It is a heat insulating structure. In the refrigerator main body 2, a freezer compartment 6 and a refrigerator compartment 7 are partitioned from the top as storage rooms, and the front opening of the freezer compartment 6 and the front opening of the refrigerator compartment 7 are on the right side or the left side of the refrigerator main body 2, respectively. It is opened and closed by a freezer compartment door 8 and a refrigerating compartment door 9 which are opened and closed by being pivoted laterally by a vertically arranged hinge device.
[0016]
The freezer compartment 6 and the refrigerator compartment 7 are cooled to a predetermined temperature by circulating the cool air cooled by the refrigerant evaporator (cooler) 10 of the refrigerating cycle disposed in the rear part of the freezer compartment 6 by the blower 11. Reference numeral 12 denotes a refrigerant compressor of the refrigeration cycle, and the compressed refrigerant is condensed by the condenser 13, then decompressed by the capillary tube 14, and flows into the refrigerant evaporator 10. The refrigerant evaporated in the refrigerant evaporator 10 circulates back to the refrigerant compressor 12 through the suction pipe 15.
[0017]
The suction pipe 15 extends from the refrigerant evaporator 10 through the back wall 2A of the refrigerator main body 2 to the refrigerant compressor 12 disposed at the lower part of the refrigerator main body 2. In order to arrange this suction pipe 15 in the middle part of the heat insulating material filling space between the outer box (outer wall plate) 3 and the inner box (inner wall plate) 4 constituting the back wall 2A, a pipe fixture 20 is used. . The pipe fixture 20 is formed with a pipe holding part 21 at the center, and a pipe insertion opening 22 that leads to the pipe holding part 21 is formed in a part so as to surround the pipe holding part 21 to form a circular outer wall 23. These are formed integrally with a synthetic resin. For this reason, the pipe fixture 20 has an elastic force in which the pipe insertion opening 22 expands as the suction pipe 15 of the refrigeration cycle is inserted, and the peripheral wall and the outer wall 23 on the opposite side of the pipe insertion opening 22 of the pipe holder 21 A filling cavity 30 of the heat insulating material 5 having no continuous portion is formed between the two. In this preferred embodiment, the pipe holding portion 21 and the circular outer wall 23 are connected to each other only at a portion where the left and right walls forming the pipe insertion opening 22 of the pipe holding portion 21 are continuous with the circular outer wall 23. The synthetic resin for forming the pipe fixture 20 is preferably polypropylene having poor heat conduction.
[0018]
The pipe fixture 20 has an outer diameter of the circular outer wall 23 arranged at a distance between the outer box (outer wall plate) 3 and the inner box (inner wall plate) 4 constituting the rear wall 2A of the refrigerator main body 2. The size is formed. In this case, the size is preferably equal to or slightly smaller than the distance between the outer box (outer wall plate) 3 and the inner box (inner wall plate) 4 constituting the back wall 2A. It is filled with the foamable heat insulating material 5 in a state where it is disposed between the outer box (outer wall plate) 3 and the inner box (inner wall plate) 4 constituting the back wall 2A of the refrigerator main body 2. This is because the outer box (outer wall plate) 3 and the inner box (inner wall plate) 4 are pressed by the jig to prevent the outer box 3 from being pressed by the pipe fixture 20.
[0019]
The pipe holding part 21 is a part that holds the suction pipe 15. However, the capillary tube 14 and the suction pipe 15 may be brought into contact with each other in a heat exchange state. In this case, the holding portion 21A of the suction pipe 15 is connected to the pipe holding portion 21 and the holding portion 21B of the capillary tube 14 is formed on the outer side of the holding portion 21A.
[0020]
Further, since the pipe fixture 20 forms a cavity 30 filled with the heat insulating material 5 between the peripheral wall on the opposite side of the pipe insertion opening 22 of the pipe holding part 21 and the outer wall 23, this cavity In the part 30, a heat insulating material 5 around the pipe fixture 20 and a series of heat insulating material layers are formed.
[0021]
The pipe fixture 20 is attached by first inserting the capillary tube 14 from the pipe insertion opening 22 into the holding portion 21B of the capillary tube 14, and then inserting the suction pipe 15 into the holding portion 21A of the suction pipe 15 from the pipe insertion opening 22. To do. In this case, the width of the pipe insertion opening 22 is sufficiently larger than the outer diameter of the capillary tube 14 but slightly smaller than the outer diameter of the suction pipe 15. This is because the small-diameter capillary tube 14 is easily damaged by bending or the like, so that it can be inserted almost without resistance, and the large-diameter suction pipe 15 has sufficient rigidity as compared with the capillary tube 14, so that the pipe insertion opening It is configured to fit into the holding portion 21 </ b> A while expanding the width of 22. In the holding part 21A, the suction pipe 15 may be held by the elasticity of the left and right walls of the holding part 21A.
[0022]
In this way, when the suction pipe 15 is accommodated in the holding portion 21A, the capillary tube 14 is maintained in the holding portion 21B by the suction pipe 15, and the capillary tube 14 and the suction pipe 15 are in contact with each other so that heat exchange is possible. Keep state. The capillary tube 14 and the suction pipe 15 are previously brought into contact with each other in a heat exchange state by welding or the like, and the capillary tube 14 is accommodated in the holding portion 21B through the pipe insertion opening 22, and the suction pipe 15 is accommodated in the holding portion 21A. The pipe fixing tool 20 can be attached to the pipe.
[0023]
As described above, since the left and right walls forming the pipe insertion opening 22 of the pipe holding part 21 are only connected to the circular outer wall 23, the pipe holding part 21 and the circular outer wall 23 are communicated with each other. 15 easily fits in the holding portion 21 </ b> A while expanding the width of the pipe insertion opening 22. Thus, the pipe fixture 20 has elasticity so that the left and right walls of the holding portion 21 </ b> A can be moved by the suction pipe 15. In order to arrange the capillary tube 14 and the suction pipe 15 between the outer box (outer wall plate) 3 and the inner box (inner wall plate) 4 constituting the back wall 2A of the refrigerator body 2 by the pipe fixing tool 20. In addition, in FIG. 1, the capillary tube 14 and the suction pipe 15 are held by two pipe fixtures 20, but more pipe fixtures 20 may be arranged at intervals.
[0024]
In this way, the capillary tube 14 and the suction pipe 15 are arranged between the outer box (outer wall plate) 3 and the inner box (inner wall plate) 4 constituting the back wall 2A of the refrigerator body 2 by the pipe fixture 20. However, in this arrangement state, the pipe insertion opening 22 faces the inner box (inner wall plate) 4 side as shown in the figure.
[0025]
In a state where the capillary tube 14 and the suction pipe 15 are arranged between the outer box (outer wall plate) 3 and the inner box (inner wall plate) 4 constituting the back wall 2A of the refrigerator body 2 by the pipe fixture 20, A foamable heat insulating material 5 is filled in a heat insulating material filling space between the box (outer wall plate) 3 and the inner box (inner wall plate) 4. Thereby, the foamable heat insulating material 5 penetrates the cavity 30 of the pipe fixture 20, and the pipe fixture 20 is formed between the outer box (outer wall plate) 3 and the inner box (inner wall plate) 4. Buried inside. The capillary tube 14 and the suction pipe 15 are embedded in the foamable heat insulating material 5 at an intermediate portion between the outer box (outer wall plate) 3 and the inner box (inner wall plate) 4.
[0026]
Thus, the cold heat from the suction pipe 15 is transmitted to the outer box (outer wall plate) 3 through the heat insulating material 5 filled in the cavity 30, and the outer box (outer wall plate) through the pipe fixture 20. There is a route to 3. Of course, the heat transfer through the heat insulating material 5 is small in the path transmitted to the outer box (outer wall plate) 3 through the heat insulating material 5. Further, the path passing through the pipe fixture 20 itself is first transmitted from the left and right walls of the pipe insertion opening 22 in the direction of the inner box (inner wall plate) 4, and then along the outer wall 23 of the circular shape (outer wall plate). 3, since the cold heat from the suction pipe 15 has to reach the outer box (outer wall plate) 3 through a large circulatory passage, the influence of the cold heat from the suction pipe 15 on the outer box (outer wall plate) 3 Can be reduced.
[0027]
Even when the suction pipe 15 falls off the holding portion 21A due to vibration caused by the assembly work of the refrigerator, the suction pipe 15 remains in the middle between the outer box (outer wall plate) 3 and the inner box (inner wall plate) 4. For this purpose, the pipe fixture 20 is integrally formed with a pipe receiving portion 24 facing the pipe insertion opening 22 on the front side (front side) of the pipe insertion opening 22 of the holding portion 21A. The pipe receiving portion 24 has elasticity, and the suction pipe 15 fits into the holding portion 21A from the pipe insertion opening 22 while being pushed away to the left in FIG. Should the suction pipe 15 fall off the holding portion 21A, it will be received by the pipe receiving portion 24 and will not contact the outer box (outer wall plate) 3 or the inner box (inner wall plate) 4.
[0028]
Moreover, the pipe fixture 20 forms the circular outer wall 23 in the thin wall with small heat capacity, and forms the thick part 25 in the several location inside this thin wall. For this reason, the elasticity of the pipe fixture becomes more effective due to the thin circular outer wall, and no pressing impression is generated in the outer box when it comes into contact with the outer box.
[0029]
Thus, by the pipe fixture 20 of the present invention, the capillary tube 14 and the suction pipe 15 are placed between the outer box (outer wall plate) 3 and the inner box (inner wall plate) 4 constituting the back wall 2A of the refrigerator body 2. The dew condensation on the outer surface of the outer box (outer wall plate) 3 by the suction pipe 15 can be prevented. Further, the pipe fixture 20 of the present invention can be attached without forming a special hole in the outer box (outer wall plate) 3 constituting the back wall 2A of the refrigerator body 2.
[0030]
The present invention is not limited to the above-described embodiments, and various modifications can be considered without departing from the technical scope of the present invention, and the various embodiments related thereto are included.
[0031]
【The invention's effect】
According to the present invention, since the elastic force of the pipe insertion opening of the pipe fixing tool is used to fit the suction pipe, it is easy to attach the pipe fixing tool to the suction pipe regardless of the installation location. Since it can be arranged in the heat insulating material in the middle of the inner box, it is difficult for cold heat from the suction pipe to be transmitted to the outer box, and it is possible to prevent dew condensation from occurring on the outer surface of the outer box even if the pipe fixture comes into contact with the outer box. In addition, since the pipe insertion opening is formed in a part of the circular outer wall, even if the pipe fixing tool is pressed against the outer box, the elastic action is effective, and no pressing impression is generated in the outer box.
[0032]
Further, according to the second aspect of the present invention, there are a path for the cold heat from the suction pipe to be transmitted to the outer box through the heat insulating material filled in the cavity, and a path to be transmitted to the outer box through the fixture. Naturally, the heat transfer through the path through the heat insulating material is reduced by the heat insulating material. In addition, the path through the fixture itself is first transmitted from the left and right walls of the pipe insertion opening to the inner box (inner wall plate) direction, and then transmitted to the outer box (outer wall plate) side along the circular outer wall. Since the cold heat from the suction pipe must reach the outer box (outer wall plate) through a passage that greatly wraps around, the influence of the cold heat from the suction pipe on the outer box (outer wall plate) can be reduced.
[0033]
According to a third aspect of the present invention, the pipe fixture includes maintaining the capillary tube and the suction pipe in a heat exchange state and disposing the suction pipe in the heat insulating material between the outer box and the inner box. Can be achieved.
[0034]
Further, in the invention of claim 4, due to the thin and thick portions of the circular outer wall, even when the suction pipe is cooled, condensation occurs at the contact portion even if the pipe fixture comes into contact with the outer box. Can be suppressed. Further, the elasticity of the pipe fixture becomes more effective due to the thin circular outer wall, and no pressing impression is generated in the outer box even when it comes into contact with the outer box.
[0035]
Moreover, since the heat insulation effect is better than the case where the polyethylene foam is wound around the suction pipe, the dew condensation prevention effect on the outer box is excellent.
[Brief description of the drawings]
FIG. 1 is a front perspective view of a storage body according to the present invention.
FIG. 2 is a cross-sectional view of a portion provided with a pipe fixture in FIG.
3 is a cross-sectional view taken along the line AA in FIG.
4 is a view as seen from the back side of FIG. 2. FIG.
FIG. 5 is a view showing a surface on one side of the pipe fixture of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Refrigerator 2 ... Refrigerator main body 3 ... Outer box (outer wall board)
4 ... Inner box (inner wall board)
5 ... Foaming insulation material 14 ··· Capillary tube 15 · · Suction pipe 20 · · Pipe fixture 21 · · Pipe holding portion 21A · · Suction pipe holding portion 21B · · Capillary tube holding portion 22 · · pipe Insertion opening 23..Outer wall 24..Pipe receiving part 25..Thick part 30..Cavity part

Claims

In a storage body in which a heat insulating material is filled between an inner box and an outer box and the inside of the storage is cooled by a refrigeration cycle, a pipe holding part that holds the suction pipe of the refrigeration cycle in the center and a circular shape that surrounds the pipe holding part A pipe fixture integrally formed with a synthetic resin so that the outer wall of the pipe holding portion is continuous with the left and right walls forming the pipe insertion opening of the pipe holding portion . The pipe insertion opening has an elastic force that expands as the suction pipe of the refrigeration cycle is inserted, and has a peripheral wall on the opposite side of the pipe insertion opening of the pipe holding portion. between the outer wall form a filled cavity of the insulation material without a contiguous portion, the to receive the suction pipe to fall off from the pipe holding portion An elastic pipe receiving portion that is opposed to the pipe insertion opening and is pushed away by the suction pipe inserted into the pipe holding portion is formed integrally with the front side of the pipe insertion opening, and is formed between the inner box and the outer box. A storage , wherein the suction pipe inserted into the pipe holding portion is disposed in a central portion of the outer box and the inner box by the circular outer wall of the pipe fixture disposed in the container .

In a storage body in which a heat insulating material is filled between an inner box and an outer box and the interior is cooled by a refrigeration cycle , a pipe holding part is formed in the center, and a circular outer wall surrounding the pipe holding part is the pipe holding A pipe fixture integrally formed of synthetic resin is provided so as to be connected to the left and right walls forming the pipe insertion opening of the part, and this pipe fixture has the circular outer wall equal to or slightly equal to the interval between the inner box and the outer box. The pipe holding part has a holding part for the suction pipe of the refrigeration cycle formed in communication with the pipe insertion opening and a capillary tube for the refrigeration cycle in communication with the holding part of the suction pipe on the inner side of the pipe holding part. comprising a part, an elastic force which the pipe insertion opening spreads along with the insertion of the suction pipe of the refrigeration cycle, the pipe inserted in the pipe holder Between the opposite peripheral wall and the outer wall of the opening forms a fill cavity of the insulation material without a contiguous portion, in front of the pipe insertion opening to receive said suction pipe to fall off from the pipe holding portion A pipe receiving portion having elasticity that is opposed to the pipe insertion opening and is pushed away by the suction pipe inserted into the pipe holding portion is integrally formed on the side, and a space is formed vertically between the inner box and the outer box. The suction pipe and the capillary tube inserted into the pipe holding portion with the pipe insertion opening facing the inner box side by the circular outer wall of the pipe fixture arranged in a maintained state are removed from the outer wall. A storage, characterized in that it is arranged in the center of the box and the inner box .

The pipe receiving part extends from the circular outer wall on one side of the left and right walls forming the pipe insertion opening, and faces the pipe insertion opening on the front side of the pipe insertion opening, from the pipe holding part. The storage according to claim 1 or 2, wherein the storage pipe is formed so as to receive the suction pipe that falls off .

The left and right walls that form the pipe insertion opening have a shape that widens from the pipe insertion opening toward the circular outer wall, and the pipe receiving portion is formed on one side of the left and right walls that form the pipe insertion opening. Extending between the widened left and right walls from a circular outer wall, facing the pipe insertion opening on the front side of the pipe insertion opening, and configured to receive the suction pipe falling off from the pipe holding portion. The storehouse according to claim 1 or 2, characterized in.