JP3799172B2

JP3799172B2 - Refrigerator and refrigerator assembly method

Info

Publication number: JP3799172B2
Application number: JP26485798A
Authority: JP
Inventors: 稔天明; 健一藤本; 真也永幡; 啓明朝倉
Original assignee: Toshiba Corp; Toshiba Digital Media Engineering Corp
Current assignee: Toshiba Corp; Toshiba Development and Engineering Corp
Priority date: 1998-09-18
Filing date: 1998-09-18
Publication date: 2006-07-19
Anticipated expiration: 2018-09-18
Also published as: JP2000088437A

Description

【０００１】
【発明の属する技術分野】
本発明は、外箱の下方にコンデンサが配設された冷蔵庫および冷蔵庫の組立方法に関する。
【０００２】
【発明が解決しようとする課題】
冷蔵庫には、図１８に示すように、コンプレッサ１の吐出口にコンデンサ２を介して防露パイプ３を接続し、高温の冷媒を防露パイプ３内に流通させる構成のものがある。この構成の場合、外箱４に防露パイプ３を装着し、扉の周辺部や貯蔵室の仕切板やガスケット等を冷凍サイクルの運転時に防露パイプ３によって加熱し、露付きを防止している。
【０００３】
しかしながら、外箱４の下方の前板部５には防露パイプ３を設置し難く、露付き対策を行い難かった。そこで、前板部５に電気的なヒータを装着することが考えられるが、消費電力量が増えるため、外気温や湿度を実測してヒータを通電制御する面倒な配慮が必要になる。
【０００４】
本発明は上記事情に鑑みてなされたものであり、その目的は、外箱の下方の前板部に露が付くことを電気的な加熱手段を用いることなく防止できる冷蔵庫および冷蔵庫の組立方法を提供することにある。
【０００５】
【課題を解決するための手段】
請求項１記載の冷蔵庫は、前面が開口する外箱と、前記外箱の下辺部に設けられた前板部と、前記外箱の下方に設けられた冷凍サイクルのコンデンサと、前記外箱に設けられ前記コンデンサを下方から覆うダクトと、前記ダクトに設けられた開口部と、外気を前記開口部を通して前記ダクト内に吸引し前記コンデンサに沿って後方へ流すファンとを備え、前記コンデンサはその前部が前記外箱の前端下面に直接的に接触または伝熱部材を介して接触し、前記前部を除く残りの部分が前記外箱の下面に対して離間し、前記前部および前記残りの部分を含む全体が前方から後方へ向って下降する傾斜状に配置されたところに特徴を有している。
上記手段によれば、コンデンサから直接的または伝熱部材を介して外箱の前端下面に熱が伝達され、外箱の下方の前板部が加熱されるので、下方の前板部に露が付くことを電気的な加熱手段を用いることなく防止できる。また、コンデンサの前部を除く残りの部分がダクトの空気流路内に配置される。このため、コンデンサの残りの部分に風が効率的に吹付けられるので、コンデンサの放熱性能が高まる。
【０００７】
請求項２記載の冷蔵庫は、前記コンデンサが前記ダクトによって前記外箱の前端下面に直接的に接触または伝熱部材を介して接触した状態に保持されているところに特徴を有している。
上記手段によれば、例えばダクトにコンデンサを組付けた後、ダクトを外箱に組付けるだけで、コンデンサを外箱の前端下面に直接的に接触または伝熱部材を介して接触させることができるので、コンデンサの組付け作業性が向上する。
【０００８】
請求項３記載の冷蔵庫は、コンデンサのパイプが外箱の下方の前板部に略平行に配置されているところに特徴を有している。
上記手段によれば、コンデンサのパイプおよび外箱間の実質的な接触量，コンデンサのパイプおよび伝熱部材間の実質的な接触量が増える。このため、コンデンサから外箱への伝熱量が増えるので、外箱の下方の前板部が露付き防止温度に昇温し易くなる。
【０００９】
請求項４記載の冷蔵庫は、コンデンサのパイプが外箱の前端下面に直接的に接触または伝熱部材を介して接触しているところに特徴を有している。
上記手段によれば、例えばコンデンサのワイヤを外箱の前端下面に直接的に接触または伝熱部材を介して接触させる場合に比べ、コンデンサから外箱への伝熱量が増えるので、外箱の下方の前板部が露付き防止温度に昇温し易くなる。
【００１１】
請求項５記載の冷蔵庫は、冷媒が流通するパイプとパイプに設けられた拡大伝熱部とをコンデンサが有し、前記拡大伝熱部が外箱の前端下面に直接的に接触または伝熱部材を介して接触しているところに特徴を有している。
上記手段によれば、例えばワイヤ等の細径な拡大伝熱部を折曲げて外箱の前端下面または伝熱部材に接触させることができるので、コンデンサの配置の自由度が高まる。
【００１２】
請求項６記載の冷蔵庫は、前記ダクト内の左右両側部には前後方向へ延びる一対のリブが設けられ、前記ダクトのうち前記一対のリブ間に開口部が設けられているところに特徴を有している。
上記手段によれば、ダクトの開口部からコンデンサの下方に鼠等が侵入し、後方へ向った場合にはコンデンサによって邪魔され、鼠等がコンデンサの下方から上方へ回り込もうとした場合にはリブによって邪魔される。このため、鼠等がコンデンサの下方を通って後方の機械室内に侵入したり、コンデンサの下方から上方へ回り込んで機械室内に侵入することが防止されるので、機械室内の電気的な配線が鼠等によって傷付けられることが防止される。
【００１３】
請求項７記載の冷蔵庫は、外箱の前端下面あるいは伝熱部材にコンデンサのパイプが挿入される凹部が設けられ、前記凹部の内面が前記パイプの外周面に沿う形状にされているところに特徴を有している。
上記手段によれば、パイプの外周面および凹部の内面間が面接触し、コンデンサから外箱への伝熱量が増えるので、外箱の下方の前板部が露付き防止温度に昇温し易くなる。
【００１４】
請求項８記載の冷蔵庫は、前記ダクトの前方に前記ダクトを前方から覆うダクトカバーが設けられ、前記ダクトカバーと前記ダクトカバーの上方に位置する扉との間に空気通路が形成されているところに特徴を有している。
上記手段によれば、扉とダクトカバーとの間の空気通路に沿って風を強制的に流すことができるので、扉およびダクトカバーに露が付き難くなる。
【００１５】
請求項９記載の冷蔵庫の組立方法は、ダクトにコンデンサを組付けた後、ダクトを外箱に組付けることに基づいてコンデンサを外箱の前端下面に直接的に接触または伝熱部材を介して接触させるところに特徴を有している。
上記手段によれば、ダクトを外箱に組付けるだけで、コンデンサが外箱の前端下面に直接的に接触または伝熱部材を介して接触するので、コンデンサの組付作業性が向上する。
【００１６】
【発明の実施の形態】
以下、本発明の第１実施例を図１ないし図６に基づいて説明する。まず、図２の（ｂ）において、外箱１１は複数枚の鋼板を前面が開口する箱状に組合わせてなるものであり、外箱１１の左側辺部および右側辺部には前板部１２および１３が折曲形成され、上辺部および下辺部には鋼板製の前板部１４および１５がねじ止めされている。
【００１７】
外箱１１内には、図４に示すように、合成樹脂製の内箱１６が配設されている。この内箱１６は前面が開口する箱状をなすものであり、外箱１１および内箱１６間には発泡ウレタン製の断熱材１７が充填されている。尚、図６の符号１８は、外箱１１および内箱１６間に断熱材１７を充填してなる冷蔵庫本体を示すものである。
【００１８】
内箱１６内には、図２の（ｂ）に示すように、水平な仕切壁１９が設けられており、仕切壁１９の上方には冷蔵室２０が形成されている。また、内箱１６内には、仕切壁１９の下方に位置して水平な仕切壁２１が設けられており、仕切壁１９と仕切壁２１との間には野菜室２２が形成されている。
【００１９】
内箱１６内には、仕切壁２１の下方に位置して垂直な仕切壁２３が設けられ、仕切壁２３の下方に位置して水平な仕切壁２４が設けられており、野菜室２２の下方には製氷室２５およびセレクト室２６が左右方向に並べて形成され、製氷室２５およびセレクト室２６の下方には冷凍室２７が形成されている。尚、冷蔵室２０，野菜室２２，製氷室２５，セレクト室２６，冷凍室２７は貯蔵室に相当するものである。
【００２０】
冷蔵室２０，野菜室２２，製氷室２５，セレクト室２６，冷凍室２７の前端部には、図２の（ａ）に示すように、扉２８〜３２が装着されている。これら扉２８〜３２の上下辺部には、図４に扉３２を代表して示すように、キャップ３３が被せられ、後面には矩形枠状のガスケット３４が装着されている。これら各ガスケット３４は磁性材を含有するものであり、例えば扉３２の閉塞時には、図２の（ｂ）に示すように、ガスケット３４が外箱１１の左前板部１２，仕切壁２４の前板部，外箱１１の右方の前板部１３，外箱１１の下方の前板部１５に磁力で吸着し、冷凍室２７の前面開口部が扉３２によって気密状態に覆われる。
【００２１】
冷蔵庫本体１８の下端部には、図４に示すように、底部ユニット３５が装着されている。以下、底部ユニット３５について説明する。コンプ台３６は鋼板から形成されたものであり、コンプ台３６の左右側部には、図５に示すように、前方へ延びるアーム部３７および上方へ延びるアーム部３８が設けられ、両アーム部３７上には合成樹脂製のダクト３９が載置されている。このダクト３９の後辺部は、図４に示すように、コンプ台３６の前辺部に重ねられており、ダクト３９の後辺部およびコンプ台３６の前辺部間は複数のねじ４０（１個のみ図示する）によって連結されている。
【００２２】
ダクト３９の前辺部には、図３に示すように、３個のパイプ台４１が一体形成されている。これら各パイプ台４１には、図１に示すように、凹部４２が形成されており、３個の凹部４２内にはコンデンサ４３の最前列のパイプ４４が挿入され、ダクト３９内には、コンデンサ４３が後方へ向うに従って下降する前上がりの傾斜状に収納されている。
【００２３】
コンデンサ４３は、図３に示すように、Ｕ字状に蛇行するパイプ４４と、パイプ４４の上下面に溶接された複数のワイヤ４５とを有するのであり、パイプ４４は左右方向へ延びる平行な複数の直管部４６と、前後方向に隣接する直管部４６間を接続する複数のＵ字管部４７とから構成されている。また、各ワイヤ４５は直管部４６に対して直角な前後方向へ延びるものであり、各ワイヤ４５の直径寸法は１．６ｍｍに設定され、ワイヤ４５間のピッチは４ｍｍに設定されている。尚、ワイヤ４５は拡大伝熱部に相当するものである。
【００２４】
ダクト３９内には、コンデンサ４３の隅部に位置してパイプ引掛部４８が一体形成されている。これら各パイプ引掛部４８は、図１に示すように、爪状をなすものであり、コンデンサ４３は、パイプ４４が隅部でパイプ引掛部４８に引掛けられることに基づいて前上りの傾斜状態に拘束されている。
【００２５】
ダクト３９内の左右側部には、図３に示すように、コンデンサ４３の下方に位置してリブ４９が一体形成されている。これら各リブ４９は前後方向へ延びる板状をなすものであり、各リブ４９の上面は、図１に示すように、後方へ向うに従って下降する傾斜面状に形成され、各リブ４９の上面とコンデンサ４３との間の隙間寸法Ｗは、リブ４９の前後方向全域に渡って８ｍｍ以下の所定値に設定されている。
【００２６】
ダクト３９の底板部には、図３に示すように、左右方向に並ぶ複数の吸気孔５０および前後方向に並ぶ複数の吸気孔５１が形成され、ダクト３９の前板部には、左右方向に並ぶ複数の吸気孔５２が形成されている。これら吸気孔５０〜５２は開口部に相当するものであり、ダクト３９の両リブ４９間に配置されている。また、外箱１１の底板部には、４隅部に位置して脚（図示せず）が固定されている。これら各脚は設置面に載置されており、ダクト３９の底板部と設置面との間に隙間を形成している。
【００２７】
コンプ台３６の右側部にはコンプレッサ５３が配設されている。このコンプレッサ５３の吐出口には、図６に示すように、中継パイプ５４を介してマフラ５５の一端部が接続されており、マフラ５５の他端部には別の中継パイプ５６が接続されている。
【００２８】
ダクト３９の後端部には、図３に示すように、左右方向へ延びる仕切板５７が一体形成されている。この仕切板５７の左端面とダクト３９の内面との間には排気口５８が形成されており、コンデンサ４３のパイプ４４の両端部は排気口５８を通してコンプ台３６側に引込まれている。
【００２９】
コンデンサ４３のパイプ４４の左端部は上述した中継パイプ５６を介してマフラ５５に接続されており、コンプレッサ５３から吐出された冷媒はマフラ５５から中継パイプ５６を通してコンデンサ４３の最前列のパイプ４４内に流入した後、パイプ４４の蛇行部分に沿って後方へ流れる。
【００３０】
コンプ台３６内の左側部にはＣファンモータ５９が配設されており、Ｃファンモータ５９の回転軸にはＣファン６０が固定されている。また、コンプ台３６の底板部には、Ｃファン６０の左方に位置して束線挿入孔６１が形成されており、コンプレッサ５３およびＣファンモータ５９の電源線６２は束線挿入孔６１内に挿入されている。また、コンプ台３６の右方のアーム部３８には、図５に示すように、鋼板製の取付板６３が固定されており、取付板６３にはドライヤ６４が固定されている。
【００３１】
コンプ台３６の前後方向へ延びる各アーム部３７には、図３に示すように、前後端部に位置して複数の貫通孔６５が形成されている。これら各貫通孔６５内には、図４に示すように、下方からねじ６６が挿入されており、コンプ台３６は、各ねじ６６を外箱１１の底板部に締込むことに基づいて外箱１１に固定され、ダクト３９の左右側辺部はコンプ台３６のアーム部３７および外箱１１の底板部間で挟持・固定されている。
【００３２】
コンプ台３６の上下方向へ延びる各アーム部３８には、図５に示すように、上端部に位置して複数の貫通孔６７が形成されている。これら各貫通孔６７内には後方からねじ（図示せず）が挿入されており、コンプ台３６は、各ねじを外箱１１の後板部に締込むことによっても外箱１１に固定されている。
【００３３】
ダクト３９には、図３に示すように、各パイプ台４１の前方に位置して貫通孔６８が形成されている。これら各貫通孔６８内には、図４に示すように、下方からねじ６９が挿入されており、ダクト３９の前辺部は、各ねじ６９を外箱１１の底板部に締込むことに基づいて外箱１１の底板部に固定されている。底部ユニット３５は以上のように構成されている。
【００３４】
コンプ台３６の左側部のアーム部３７および３８間，右側部のアーム部３７および３８間には、図５に示すように、台形板状をなす鋼板製の側板７０がねじ止めされている。また、コンプ台３６の後方の両アーム部３８間には横長な矩形状をなす鋼板製の後板７１がねじ止めされており、両側板７０と後板７１とコンプ台３６と外箱１１の底板部とダクト３９の仕切板５７との間には機械室７２（図４参照）が形成されている。
【００３５】
ダクト３９の前方には、図４に示すように、合成樹脂製のダクトカバー７３が配設されている。このダクトカバー７３はダクト３９の前面を前方から覆うものであり、ダクトカバー７３の前板部には吸気用開口部７４が形成され、ダクトカバー７３の後板部には排気用開口部７５が形成されている。また、ダクトカバー７３と扉３２の下方のキャップ３３との間には隙間が形成され、ダクトカバー７３とダクト３９の前面との間には隙間が形成されており、両隙間から略Ｌ字状の空気通路７６が形成されている。
【００３６】
冷蔵庫本体１１には、図６に示すように、防露パイプ７７が装着されている。この防露パイプ７７は三角形状の側パイプ部７８および７９と、Ｕ字状の上パイプ部８０と、一方の側パイプ部７８および上パイプ部８０間を繋ぐ前パイプ部８１と、Ｔ字状の中パイプ部８２と、Ｕ字状の下パイプ部８３とを有するものであり、一方の側パイプ部７９は、図３において、コンプ台３６側に引込まれたコンデンサ４３のパイプ４４の右端部に接続され、他方の側パイプ部７８は、図６に示すように、ドライヤ６４の上端部に接続されている。
【００３７】
防露パイプ７７の側パイプ部７８および７９，前パイプ部８１は外箱１１と内箱１６との間に収納されたものであり、側パイプ部７８および７９は外箱１１の側板部に密着している。また、前パイプ部８１は外箱１１の左方の前板部１２，上方の前板部１４，右方の前板部１３に密着している。
【００３８】
防露パイプ７７のＵ字状の上パイプ部８０は最上段の仕切壁１９内に収納されたものであり、仕切壁１９の前板部に密着している。また、Ｔ字状の中パイプ部８２は中段の仕切壁２１内および仕切壁２３内に収納されたものであり、仕切壁２１の前板部および仕切壁２３の前板部に密着している。また、Ｕ字状の下パイプ部８３は下段の仕切壁２４内に収納されたものであり、仕切壁２４の前板部に密着している。
【００３９】
冷蔵庫本体１８内にはエバポレータ８４が配設されており、ドライヤ６４の下端部はキャピラリーチューブ８５を介してエバポレータ８４の一端部に接続されている。また、エバポレータ８４の他端部にはアキュムレータ８６が接続されており、アキュムレータ８６はサクションパイプ８７を介してコンプレッサ５３の吸入口に接続されている。
【００４０】
次に上記構成の作用について説明する。Ｃファン６０が回転すると、外気がダクト３９内に吸引され、コンデンサ４３の表面に沿って後方へ流れる。そして、排気口５８を通って機械室７２内に流入し、Ｃファンモータ５９およびコンプレッサ５３に吹付けられる。尚、下記（１）〜（３）および図４の矢印はダクト３９内への外気の吸入経路を示している。
【００４１】
（１）ダクトカバー７３の周囲の空気通路７６→ダクト３９の前板部の吸気孔５２→ダクト３９内
（２）ダクトカバー７３の吸気用開口部７４→ダクトカバー７３の排気用開口部７５→ダクト３９の前板部の吸気孔５２→ダクト３９内
（３）ダクト３９の底板部と設置面との隙間→ダクト３９の底板部の吸気孔５０および５１→ダクト３９内
【００４２】
この状態でコンプレッサ５３が作動すると、コンプレッサ５３の吐出口から高温・高圧の冷媒が吐出され、マフラ５５を通してコンデンサ４３のパイプ４４内に流入し、パイプ４４に沿って蛇行する。このとき、コンデンサ４３に沿って後方へ流れる風とコンデンサ４３内を流れる冷媒との間で熱交換が行われる。これと共に、コンデンサ４３の最前列のパイプ４４から外箱１１の下方の前板部１５に熱が伝達され、下方の前板部１５が露付き防止温度に加熱される。
【００４３】
パイプ４４に沿って蛇行した冷媒は防露パイプ７７内に流入する。この冷媒の温度は冷蔵庫の設置温度に比べて５°Ｃ〜１０°Ｃだけ高いため、外箱１１の左側板部，右側板部，左方の前板部１２，右方の前板部１３，上方の前板部１４，仕切壁１９の前板部，仕切壁２１の前板部，仕切壁２３の前板部，仕切壁２４の前板部，扉２８〜３２のガスケット３４が防露パイプ７７によって露付き防止温度に加熱される。
【００４４】
防露パイプ７７内を通過した冷媒はキャピラリーチューブ８５を通過する際に低温・低圧になり、エバポレータ８４を通過する際に周囲の空気から熱を奪い、アキュムレータ８６からサクションパイプ８７を通ってコンプレッサ５３の吸入口に戻る。このエバポレータ８４の近傍にはＥファン装置（図示せず）が配設されている。このＥファン装置はＥファンモータの回転軸にはＥファンを連結してなるものであり、Ｅファンが回転すると、エバポレータ８４に風が吹付けられて冷気が生成され、冷蔵室２０，野菜室２２，製氷室２５，セレクト室２６，冷凍室２７内に送られる。
【００４５】
次にコンデンサ４３の組付け方法について説明する。底部ユニット３５のダクト３９内にコンデンサ４３を組付けた後、底部ユニット３５を外箱１１の底板部にねじ止めする。すると、底部ユニット３５が外箱１１の底板部に固定され、コンデンサ４２の最前列のパイプ４４がダクト３９によって外箱１１の下方の前板部１５に接触した状態に保持される。
【００４６】
上記実施例によれば、コンデンサ４３を外箱１１の下方の前板部１５に接触させた。このため、冷凍サイクルの運転時にコンデンサ４３から前板部１５に熱が伝達され、前板部１５がコンデンサ４３によって加熱されるので、前板部１５に露が付くことが電気的な加熱手段を用いることなく防止される。
【００４７】
また、コンデンサ４３をダクト３９によって下方の前板部１５に接触した状態に保持した。このため、ダクト３９にコンデンサ４３を組付けた後、底部ユニット３５を外箱１１にねじ止めするだけで、コンデンサ４３が前板部１５に接触するので、コンデンサ４３の組付け作業性が向上する。
【００４８】
また、コンデンサ４３のパイプ４４を上方から見て前板部１５に平行に配置したので、パイプ４４および前板部１５間の接触量が増える。このため、コンデンサ４３から前板部１５への伝熱量が増えるので、前板部１５が露付き防止温度に昇温し易くなる。
【００４９】
また、コンデンサ４３のうち放熱量が大きなパイプ４４を前板部１５に接触させた。このため、コンデンサ４３から前板部１５への伝熱量が一層増えるので、前板部１５が露付き防止温度に一層昇温し易くなる。
【００５０】
また、コンデンサ４３を前上りの傾斜状に配置したので、コンデンサ４３の前端部が前板部１５に接触しつつ、コンデンサ４３の残りの部分がダクト３９の空気流路内に配置される。このため、コンデンサ４３の残りの部分に強制冷却風が効率的に吹付けられるので、コンデンサ４３の放熱性能が高まる。
【００５１】
また、コンデンサ４３を前上りの傾斜状に配置したので、ダクト３９の吸気孔５０〜５２からコンデンサ４３の下方に鼠等が侵入し、後方へ向かった場合にはコンデンサ４３によって邪魔される。しかも、ダクト３９内に一対のリブ４９を設けたので、鼠等がコンデンサ４３の下方から上方へ回り込もうとした場合にはリブ４９によって邪魔される。このため、鼠等がコンデンサ４３の下方から排気口５８を通って機械室７２内に侵入したり、コンデンサ４３の下方から上方へ回り込んだ後に排気口５８を通って機械室７２内に侵入することが防止されるので、機械室７２内の配線６２が鼠等によって傷付けられることが防止される。尚、鼠の侵入は、隙間の高さ寸法が８ｍｍ以下で不能になるとされている。
【００５２】
また、ダクトカバー７３と扉３２の下方のキャップ３３との間に空気通路７６を設けた。このため、Ｃファン６０の回転時にキャップ３３の表面およびダクトカバー７３の表面に沿って風が流れるので、キャップ３３およびダクトカバー７３に露が付き難くなる。
【００５３】
また、ダクト３９のパイプ引掛部４８にコンデンサ４３のパイプ４４を引掛けたので、コンデンサ４３の振動等に伴うずれ動きが防止される。しかも、コンデンサ４３の最前列のパイプ４４をダクト３９の凹部４２内に嵌合したので、この点からも、コンデンサ４３の振動等に伴うずれ動きが防止され、総じて、コンデンサ４３と前板部１５との間で異音が生じることが防止される。
【００５４】
また、コンデンサ４３の前方から後方へ冷媒を流したので、コンデンサ４３の最前列のパイプ４４が残り列のパイプ４４に比べて高温になる。このため、コンデンサ４３から前板部１５への伝熱量が増えるので、この点からも、前板部１５が露付き防止温度に昇温し易くなる。
【００５５】
尚、上記第１実施例においては、コンデンサ４３の最前列のパイプ４４を前板部１５に接触させたが、これに限定されるものではなく、例えば前から２列目のパイプ４４等を前板部１５に接触させても良く、要はパイプ４４が前板部１５に接触していれば良い。
【００５６】
また、上記第１実施例においては、コンデンサ４３を直管部４６が左右方向へ指向するように配置したが、これに限定されるものではなく、例えば本発明の第２実施例を示す図７のように、コンデンサ４３の所定のＵ字管部４７をパイプ台４１の凹部４２内に嵌合することに伴い、コンデンサ４３を直管部４６が前上りに傾斜するように配置しても良い。
【００５７】
また、上記第１実施例においては、ダクト３９内にコンデンサ４３を収納したが、これに限定されるものではなく、例えば本発明の第３実施例を示す図８のように、蒸発皿８８を収納しても良い。この場合、Ｕ字状に蛇行するパイプ４４のみからなるコンデンサ４３を用い、最前列のパイプ４４をパイプ台４１の凹部４２内に嵌合することに基づいて前板部１５に接触させ、残り列のパイプ４４をダクト３９の外部に配置してダクト３９の下面に接触させることが好ましい。
【００５８】
次に本発明の第４実施例を図９に基づいて説明する。前板部１５には上方へ窪む凹部８９が形成されている。この凹部８９の内面はコンデンサ４３のパイプ４４の外周面に沿う半円形状をなしており、最前列のパイプ４４は凹部８９内に嵌合され、凹部８９の内面に面接触している。
【００５９】
上記実施例によれば、コンデンサ４３のパイプ４４を凹部８９内に嵌合したので、パイプ４４および前板部１５間が面接触し、両者間の接触面積が増える。このため、コンデンサ４３から前板部１５への伝熱量が一層増え、前板部１５が露付き防止温度に一層昇温し易くなる。
【００６０】
尚、上記第４実施例においては、コンデンサ４３を直管部４６が左右方向へ指向するように傾斜配置したが、これに限定されるものではなく、例えば、直管部４６が前後方向へ指向するように傾斜配置しても良い。
【００６１】
次に本発明の第５実施例を図１０に基づいて説明する。ダクト３９内にはコンデンサ４３が水平に収納されている。このコンデンサ４３の上面側の各ワイヤ４５には、前端部に位置して略Ｌ字状の折曲部９０が形成されており、各折曲部９０は前板部１５に接触している。
【００６２】
上記実施例によれば、コンデンサ４３のワイヤ４５に折曲部９０を設け、折曲部９０を前板部１５に接触させた。このため、コンデンサ４３の配置の自由度が高まるので、コンデンサ４３を傾斜させることなく、コンデンサ４３から前板部１５に熱を伝えることができる。
【００６３】
尚、上記第５実施例においては、コンデンサ４３の上面側のワイヤ４５に折曲部９０を設けたが、これに限定されるものではなく、例えば下面側のワイヤ４５に折曲部を設け、下面側の折曲部を前板部１５に接触させても良い。
【００６４】
また、上記第５実施例においては、コンデンサ４３を直管部４６が左右方向へ指向するように水平配置したが、これに限定されるものではなく、例えば、直管部４６が前後方向へ指向するように水平配置しても良い。この場合、ワイヤ４５が左右方向へ指向するので、上面側のワイヤ４５の左右端部あるいは下面側のワイヤ４５の左右端部を前方へ折曲げて前板部１５に接触させると良い。
【００６５】
次に本発明の第６実施例を図１１に基づいて説明する。ダクト３９内にはコンデンサ４３が水平に収納されている。このコンデンサ４３は、最前列のパイプ４４が残り列のパイプ４４より高い部分に位置するものであり、最前列のパイプ４４はパイプ台４１の凹部４２内に嵌合され、前板部１５に接触している。
【００６６】
上記実施例によれば、コンデンサ４３の最前列のパイプ４４を残り列のパイプ４４より高い部分に設けたので、コンデンサ４３を傾斜させることなく、パイプ４４を前板部１５に接触させることができる。
【００６７】
尚、上記第６実施例においては、コンデンサ４３を直管部４６が左右方向へ指向するように水平配置したが、これに限定されるものではなく、例えば、直管部４６が前後方向へ指向するように水平配置し、パイプ４４の前端のＵ字管部４７を前板部１５に接触させても良い。
【００６８】
また、上記第１〜第６実施例においては、外箱１１の前板部１５にコンデンサ４３を接触させたが、これに限定されるものではなく、例えば外箱１１の底板部のうち前板部１５の後方部分に接触させても良く、要は、外箱１１の前端下面に接触させれば良い。
【００６９】
また、上記第１〜第６実施例においては、コンデンサ４３のパイプ４４あるいはワイヤ４５を前板部１５に接触させたが、これに限定されるものではなく、例えばパイプ４４と前板部１５との間、あるいは、ワイヤ４５と前板部１５との間に薄いブチルゴム等の弾性材を挟み込んでも良い。
【００７０】
この構成の場合、コンデンサ４３の振動が弾性材によって吸収され、前板部１５に伝わり難くなるので、外箱１１の振動が防止される。しかも、コンデンサ４３や外箱１１等に製造誤差や組付誤差がある場合でも、パイプ４４あるいはワイヤ４５が弾性材を介して前板部１５に接触するので、パイプ４４と前板部１５との間、あるいは、ワイヤ４５と前板部１５との間に製造誤差等によって隙間が形成され、コンデンサ４３から前板部１５への伝熱量が大幅に減ることが防止される。
【００７１】
次に本発明の第７実施例を図１２に基づいて説明する。ダクト３９内にはコンデンサ４３が水平に収納されており、コンデンサ４３の前端部と前板部１５との間には金属製の伝熱部材９１が介在されている。この伝熱部材９１の左右方向の長さ寸法はコンデンサ４３と略同一に設定され、コンデンサ４３の前端部は、左右方向全域が伝熱部材９１を介して外箱１１の前板部１５および底板部に接触している。
【００７２】
上記実施例によれば、コンデンサ４３を伝熱部材９１を介して前板部１５に接触させた。このため、冷凍サイクルの運転時にコンデンサ４３から前板部１５に熱が伝達され、前板部１５がコンデンサ４３によって加熱されるので、前板部１５の露付きが電気的な加熱手段を用いることなく防止される。
また、コンデンサ４３の左右方向の全域を伝熱部材９１を介して前板部１５に接触させたので、コンデンサ４３から伝熱部材９１への伝熱量が増え、前板部１５が露付き防止温度に昇温し易くなる。
【００７３】
次に本発明の第８実施例を図１３に基づいて説明する。伝熱部材９１には、上面，後面，下面，前面を周回するアルミテープ９２が貼付されており、コンデンサ４３の前端部は伝熱部材９１およびアルミテープ９２を介して前板部１５に接触している。
【００７４】
上記実施例によれば、伝熱部材９１に柔軟なアルミテープ９２を巻回した。このため、コンデンサ４３の振動がアルミテープ９２によって吸収され、前板部１５に伝わり難くなるので、外箱１１の振動が防止される。しかも、コンデンサ４３がワイヤ４５による凹凸等に比較的影響されず、アルミテープ９２に密着するので、コンデンサ４３から前板部１５への伝熱量が増え、前板部１５が露付き防止温度に昇温し易くなる。
【００７５】
尚、上記第８実施例においては、伝熱部材９１の上面，後面，下面，前面にアルミテープ９２を巻回したが、これに限定されるものではなく、例えば本発明の第９実施例を示す図１４のように、伝熱部材９１の前面および下面，前板部１５にアルミ箔９３を貼付し、伝熱部材９１の上面を外箱１１の底板部および前板部１５に接着しても良い。
【００７６】
また、上記第９実施例においては、伝熱部材９１を前板部１５に接着したが、これに限定されるものではなく、例えば本発明の第１０実施例を示す図１５のように、コンデンサ４３の上面に接着しても良い。この場合、伝熱部材９１の上面および後面，コンデンサ４３の上面にアルミ箔９３を接着し、アルミ泊９３のうち伝熱部材９３の上面に接着された部分を前板部１５に接触させると良い。
【００７７】
また、上記第７実施例〜第１０実施例においては、伝熱部材９１やアルミテープ９２やアルミ箔９３を外箱１１の底板部および前板部１５の双方に接触させたが、これに限定されるものではなく、例えば、前板部１５の後端面を後方へ延長することに基づいて前板部１５のみに接触させても良い。この場合、コンデンサ４３から前板部１５に熱が集中的に伝達されるので、前板部１５が露付き防止温度に昇温し易くなる。
【００７８】
次に本発明の第１１実施例を図１６に基づいて説明する。ダクト３９内にはコンデンサ４３が水平に収納されており、コンデンサ４３の上面と前板部１５との間には金属板製の伝熱部材９４が挟持されている。この伝熱部材９４は高さ方向に段差を有する２つの水平板を連結した形状をなすものであり、伝熱部材９４は自身の弾性復元力によってコンデンサ４３および前板部１５の双方に密着している。
【００７９】
上記実施例によれば、板ばね状の伝熱部材９４を用いた。このため、コンデンサ４３と前板部１５との間の隙間寸法に製造上のばらつきがある場合でも、伝熱部材９４がコンデンサ４３および前板部１５の双方に密着するので、コンデンサ４３から前板部１５に熱が確実に伝達される。
【００８０】
尚、上記第１１実施例においては、高さ方向に段差を有する２つの水平板を連結した形状の伝熱部材９４を用いたが、これに限定されるものではなく、例えば本発明の第１２実施例を示す図１７のように、Ｕ字状の金属板からなる伝熱部材９５を用いても良い。
【００８１】
また、上記第７〜第１２実施例においては、コンデンサ４３のワイヤ４５と前板部１５との間で伝熱部材９１，９４，９５のいずれかを挟持したが、これに限定されるものではなく、例えばコンデンサ４３の前端部にはワイヤ４５を設けず、最前列のパイプ４４と前板部１５との間で伝熱部材９１，９４，９５のいずれかを挟持しても良い。
【００８２】
この構成の場合、コンデンサ４３から伝熱部材９１，９４，９５のいずれかへの伝熱量が増えるので、前板部１５が露付き防止温度に昇温し易くなる。特に最前列のパイプ４４と前板部１５との間でブロック状の伝熱部材９１を挟持する場合には、伝熱部材９１の下面に断面半円形状の凹部を形成し、凹部内に最前列のパイプ４４を嵌合することに基づいて最前列のパイプ４４と凹部の内周面とを面接触させると良い。
【００８３】
また、上記第７〜第１２実施例においては、ダクト３９内にコンデンサ４３を水平配置したが、これに限定されるものではなく、例えば前上りの傾斜状に配置しても良い。
また、上記第１〜第１２実施例においては、ダクト３９内の左右両側部にリブ４９を設けたが、これに限定されるものではなく、例えば両リブ４９間に前後方向へ延びる別のリブを１枚以上設けても良い。この場合、ダクト３９内の右側部に吸引された外気が排気口５８に直接的に向うことが別のリブによって防止され、コンデンサ４３の全域に強制冷却風が流通するので、コンデンサ４３の放熱性能が一層高まる。
【００８４】
また、上記第１〜第１２実施例においては、外箱１１の底板部および下方の前板部１５間を接触させたが、これに限定されるものではなく、例えば両者の間に樹脂等を挟み込んでも良い。この場合、前板部１５から底板部に熱が逃げ難くなるので、前板部１５の加熱効率が高まり、前板部１５が露付き防止温度に昇温し易くなる。
【００８５】
また、上記第１〜第１２実施例においては、コンデンサ４３の前方から後方へ向って冷媒を流したが、これに限定されるものではなく、例えばコンデンサ４３の後方から前方へ向って冷媒を流しても良い。
また、上記第１〜第１２実施例においては、冷蔵庫本体１８の最下段に冷凍室２７を形成したが、これに限定されるものではなく、例えば野菜室や冷蔵室等を形成しても良い。
【００８６】
【発明の効果】
以上の説明から明らかなように、本発明の冷蔵庫は次の効果を奏する。
請求項１記載の手段によれば、コンデンサを外箱の前端下面に直接的または伝熱部材を介して接触させた。このため、外箱の下方の前板部がコンデンサからの熱によって加熱されるので、下方の前板部に露が付くことを電気的な加熱手段を用いることなく防止できる。また、コンデンサの前部を除く残りの部分がダクトの空気流路内に配置される。このため、コンデンサの残りの部分に風が効率的に吹付けられるので、コンデンサの放熱性能が高まる。
【００８８】
請求項２記載の手段によれば、コンデンサをダクトによって保持した。このため、ダクトを外箱に組付けるだけで、コンデンサを外箱の前端下面に直接的に接触または伝熱部材を介して接触させることができるので、コンデンサの組付け作業性が向上する。
請求項３記載の手段によれば、コンデンサのパイプを外箱の下方の前板部に略平行に配置した。このため、コンデンサから外箱への伝熱量が増えるので、外箱の下方の前板部が露付き防止温度に昇温し易くなる。
【００８９】
請求項４記載の手段によれば、コンデンサのパイプを外箱の前端下面に直接的に接触または伝熱部材を介して接触させた。このため、コンデンサから外箱への伝熱量が増えるので、外箱の下方の前板部が露付き防止温度に昇温し易くなる。
【００９０】
請求項５記載の手段によれば、コンデンサの拡大伝熱部を外箱の前端下面に直接的に接触または伝熱部材を介して接触させた。このため、ワイヤ等の細径な拡大伝熱部を折曲げるだけで対応できるので、コンデンサの配置の自由度が高まる。
請求項６記載の手段によれば、ダクト内に一対のリブを設け、ダクトのうち一対のリブ間に開口部を設けた。このため、鼠等が開口部からダクト内を通って機械室内に侵入し、機械室内の配線が鼠等によって傷付けられることが防止される。
【００９１】
請求項７記載の手段によれば、外箱の前端下面あるいは伝熱部材にコンデンサのパイプが挿入される凹部を設けた。このため、コンデンサから外箱への伝熱量が増えるので、外箱の下方の前板部が露付き防止温度に昇温し易くなる。
請求項８記載の手段によれば、ダクトカバーと扉との間に空気通路を設けた。このため、空気通路に沿って風を強制的に流すことができるので、扉およびダクトカバーに露が付き難くなる。
請求項９記載の手段によれば、ダクトを外箱に組付けるだけで、コンデンサが外箱の前端下面に直接的に接触または伝熱部材を介して接触するので、コンデンサの組付作業性が向上する。
【図面の簡単な説明】
【図１】本発明の第１実施例を示す図（冷蔵庫の前端底部を示す縦断面図）
【図２】（ａ）は全体構成を示す正面図、（ｂ）は全体構成を扉の除去状態で示す正面図
【図３】底部ユニットを示す平面図
【図４】底部ユニットを非組付状態で概略的に示す縦断面図
【図５】底部ユニット，側板，後板を分解状態で示す斜視図
【図６】冷凍サイクルを示す斜視図
【図７】本発明の第２実施例を示す図（冷蔵庫の前端底部を概略的に示す断面図）
【図８】本発明の第３実施例を示す図７相当図
【図９】本発明の第４実施例を示す図７相当図
【図１０】本発明の第５実施例を示す図７相当図
【図１１】本発明の第６実施例を示す図７相当図
【図１２】本発明の第７実施例を示す図７相当図
【図１３】本発明の第８実施例を示す図７相当図
【図１４】本発明の第９実施例を示す図７相当図
【図１５】本発明の第１０実施例を示す図７相当図
【図１６】本発明の第１１実施例を示す図７相当図
【図１７】本発明の第１２実施例を示す図７相当図
【図１８】従来例を示す図
【符号の説明】
１１は外箱、１５は前板部、３２は扉、３９はダクト、４３はコンデンサ、４４はパイプ、４５はワイヤ（拡大伝熱部）、４９はリブ、５０〜５２は吸気孔（開口部）、７３はダクトカバー、７６は空気通路、８９は凹部、９１，９４，９５は伝熱部材を示す。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a refrigerator in which a capacitor is disposed below an outer box and a method for assembling the refrigerator.
[0002]
[Problems to be solved by the invention]
As shown in FIG. 18, some refrigerators have a configuration in which a dew-proof pipe 3 is connected to the discharge port of the compressor 1 via a condenser 2 so that a high-temperature refrigerant flows through the dew-proof pipe 3. In the case of this configuration, the dew prevention pipe 3 is attached to the outer box 4, and the door peripheral part, the partition plate of the storage room and the gasket are heated by the dew prevention pipe 3 during the operation of the refrigeration cycle to prevent dew condensation. Yes.
[0003]
However, it is difficult to install the dew-proof pipe 3 on the front plate portion 5 below the outer box 4 and it is difficult to take measures against dew. Therefore, it is conceivable to attach an electric heater to the front plate part 5, but since the amount of power consumption increases, it is necessary to take the troublesome consideration of controlling the energization of the heater by actually measuring the outside air temperature and humidity.
[0004]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a refrigerator and a refrigerator assembling method that can prevent the front plate portion below the outer box from being exposed without using an electric heating means. It is to provide.
[0005]
[Means for Solving the Problems]
  The refrigerator according to claim 1, an outer box having an open front surface,A front plate provided on the lower side of the outer box;A condenser of a refrigeration cycle provided below the outer box;A duct that is provided in the outer box and covers the capacitor from below; an opening provided in the duct; and a fan that sucks outside air into the duct through the opening and flows backward along the capacitorThe capacitor isThe front part is in direct contact with the lower surface of the front end of the outer box or through a heat transfer member, and the remaining part except the front part is separated from the lower surface of the outer box, the front part and the The whole, including the rest, was placed in an inclined shape that descends from the front to the rearHowever, it has the characteristics.
  According to the above means, from the capacitorDirectly or through heat transfer memberSince heat is transmitted to the lower surface of the front end of the outer box and the lower front plate part of the outer box is heated, it is possible to prevent the lower front plate part from being exposed without using an electric heating means.Further, the remaining part except the front part of the capacitor is arranged in the air flow path of the duct. For this reason, since the wind is efficiently blown to the remaining portion of the capacitor, the heat dissipation performance of the capacitor is enhanced.
[0007]
  Claim2The refrigerator described,in frontThe lower surface of the front end of the outer box by the ductDirectly into contact or through heat transfer memberIt is characterized by being held in contact.
  According to the above means, for example, after the capacitor is assembled to the duct, the capacitor is mounted on the outer box by simply assembling the duct to the outer box.Directly into contact or through heat transfer memberSince they can be brought into contact with each other, the assembling workability of the capacitor is improved.
[0008]
  Claim3The described refrigerator is characterized in that the condenser pipe is disposed substantially parallel to the front plate portion below the outer box.
  According to the above means, the substantial contact amount between the condenser pipe and the outer box and the substantial contact amount between the condenser pipe and the heat transfer member are increased. For this reason, since the amount of heat transfer from the capacitor to the outer box increases, the front plate portion below the outer box is likely to rise to the dew prevention temperature.
[0009]
  Claim4In the refrigerator described, the condenser pipe is the lower surface of the front end of the outer boxDirectly into contact or through heat transfer memberIt is characterized by contact.
  According to the above means, for example, the capacitor wire is connected to the lower surface of the front end of the outer box.Directly into contact or through heat transfer memberSince the amount of heat transfer from the capacitor to the outer box is increased as compared with the case of contacting, the front plate portion below the outer box is likely to be heated to the dew prevention temperature.
[0011]
  Claim5The refrigerator described has a condenser having a pipe through which a refrigerant circulates and an enlarged heat transfer portion provided in the pipe, and the enlarged heat transfer portion is a lower surface of the front end of the outer box.Directly into contact or through heat transfer memberIt is characterized by contact.
  According to the above means, for example, a thin enlarged heat transfer portion such as a wire can be bent and brought into contact with the lower surface of the front end of the outer box or the heat transfer member.
[0012]
  Claim6The refrigerator described,in frontThe duct is characterized in that a pair of ribs extending in the front-rear direction are provided on the left and right sides of the duct, and an opening is provided between the pair of ribs in the duct.
  According to the above means, when a bag or the like enters the lower part of the capacitor from the opening of the duct and goes backward, it is obstructed by the capacitor. Be disturbed by ribs. For this reason, it is possible to prevent a bag or the like from entering the machine room behind the capacitor through the lower part of the capacitor or entering the machine room from the lower part of the capacitor to the upper part. It is prevented from being damaged by wrinkles or the like.
[0013]
  Claim7The refrigerator described is characterized in that a recess into which a condenser pipe is inserted is provided in the lower surface of the front end of the outer box or the heat transfer member, and the inner surface of the recess is shaped along the outer peripheral surface of the pipe. ing.
  According to the above means, the outer peripheral surface of the pipe and the inner surface of the recess are in surface contact with each other, and the amount of heat transfer from the capacitor to the outer box increases, so that the front plate part below the outer box easily rises to the dew prevention temperature. Become.
[0014]
  Claim8The refrigerator described,in frontA duct cover that covers the duct from the front is provided in front of the duct, and an air passage is formed between the duct cover and a door positioned above the duct cover.
  According to the above means, since the wind can be forced to flow along the air passage between the door and the duct cover, it is difficult for dew to adhere to the door and the duct cover.
[0015]
  Claim9The assembling method of the refrigerator described is that the capacitor is assembled to the duct, and then the capacitor is assembled to the lower surface of the front end of the outer box based on assembling the duct to the outer box.Directly into contact or through heat transfer memberIt has a feature where it comes into contact.
  According to the above means, just by assembling the duct to the outer box, the capacitor is connected to the lower surface of the front end of the outer box.Directly into contact or through heat transfer memberSince they come into contact with each other, the assembling workability of the capacitor is improved.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. First, in FIG. 2B, the outer box 11 is formed by combining a plurality of steel plates in a box shape with an open front, and the left side and right side of the outer box 11 have front plate portions. 12 and 13 are bent, and steel plate front plate portions 14 and 15 are screwed to the upper and lower sides.
[0017]
As shown in FIG. 4, an inner box 16 made of synthetic resin is disposed in the outer box 11. The inner box 16 has a box shape with an open front, and a space between the outer box 11 and the inner box 16 is filled with a heat insulating material 17 made of urethane foam. In addition, the code | symbol 18 of FIG. 6 shows the refrigerator main body formed by filling the heat insulating material 17 between the outer box 11 and the inner box 16. FIG.
[0018]
As shown in FIG. 2B, a horizontal partition wall 19 is provided in the inner box 16, and a refrigerator compartment 20 is formed above the partition wall 19. In the inner box 16, a horizontal partition wall 21 is provided below the partition wall 19, and a vegetable compartment 22 is formed between the partition wall 19 and the partition wall 21.
[0019]
In the inner box 16, a vertical partition wall 23 is provided below the partition wall 21, and a horizontal partition wall 24 is provided below the partition wall 23. The ice making chamber 25 and the select chamber 26 are formed side by side in the left-right direction, and a freezing chamber 27 is formed below the ice making chamber 25 and the select chamber 26. In addition, the refrigerator compartment 20, the vegetable compartment 22, the ice making room 25, the selection room 26, and the freezer compartment 27 are equivalent to a storage room.
[0020]
As shown in FIG. 2A, doors 28 to 32 are attached to the front end portions of the refrigerator compartment 20, the vegetable compartment 22, the ice making compartment 25, the select compartment 26, and the freezer compartment 27. Caps 33 are put on the upper and lower sides of the doors 28 to 32 as representatively shown in FIG. 4, and a rectangular frame-shaped gasket 34 is mounted on the rear surface. Each of these gaskets 34 contains a magnetic material. For example, when the door 32 is closed, as shown in FIG. 2B, the gasket 34 is a front plate of the left front plate part 12 of the outer box 11 and the partition wall 24. And the front plate portion 13 on the right side of the outer box 11 and the front plate portion 15 below the outer box 11 are attracted by magnetic force, and the front opening of the freezer compartment 27 is covered with a door 32 in an airtight state.
[0021]
As shown in FIG. 4, a bottom unit 35 is attached to the lower end of the refrigerator body 18. Hereinafter, the bottom unit 35 will be described. The comp base 36 is formed from a steel plate. As shown in FIG. 5, the left and right sides of the comp base 36 are provided with an arm portion 37 extending forward and an arm portion 38 extending upward. A duct 39 made of synthetic resin is placed on 37. As shown in FIG. 4, the rear side portion of the duct 39 is overlapped with the front side portion of the comp base 36, and a plurality of screws 40 (between the rear side portion of the duct 39 and the front side portion of the comp base 36 are provided. Only one is shown).
[0022]
As shown in FIG. 3, three pipe bases 41 are integrally formed on the front side of the duct 39. As shown in FIG. 1, each of these pipe bases 41 is formed with a recess 42, and the pipe 44 in the foremost row of the capacitor 43 is inserted into the three recesses 42. 43 is housed in an upwardly inclined shape that descends as it goes rearward.
[0023]
As shown in FIG. 3, the capacitor 43 includes a pipe 44 meandering in a U-shape and a plurality of wires 45 welded to the upper and lower surfaces of the pipe 44. The pipe 44 includes a plurality of parallel pipes extending in the left-right direction. The straight pipe part 46 and a plurality of U-shaped pipe parts 47 that connect the straight pipe parts 46 adjacent in the front-rear direction. Each wire 45 extends in the front-rear direction perpendicular to the straight pipe portion 46, the diameter of each wire 45 is set to 1.6 mm, and the pitch between the wires 45 is set to 4 mm. The wire 45 corresponds to an enlarged heat transfer portion.
[0024]
A pipe hooking portion 48 is integrally formed in the duct 39 at the corner of the capacitor 43. As shown in FIG. 1, each of these pipe hook portions 48 has a claw shape, and the capacitor 43 is inclined forward based on the pipe 44 being hooked on the pipe hook portion 48 at the corner. It is restrained by.
[0025]
As shown in FIG. 3, ribs 49 are integrally formed on the left and right sides of the duct 39 so as to be positioned below the capacitor 43. Each of these ribs 49 has a plate shape extending in the front-rear direction. As shown in FIG. 1, the upper surface of each rib 49 is formed into an inclined surface that descends toward the rear, The gap dimension W between the capacitor 43 is set to a predetermined value of 8 mm or less over the entire front-rear direction of the rib 49.
[0026]
As shown in FIG. 3, a plurality of intake holes 50 arranged in the left-right direction and a plurality of intake holes 51 arranged in the front-rear direction are formed in the bottom plate portion of the duct 39, and the front plate portion of the duct 39 is formed in the left-right direction. A plurality of side-by-side intake holes 52 are formed. These intake holes 50 to 52 correspond to openings, and are disposed between both ribs 49 of the duct 39. Further, legs (not shown) are fixed to the bottom plate portion of the outer box 11 at four corners. Each of these legs is placed on the installation surface, and a gap is formed between the bottom plate portion of the duct 39 and the installation surface.
[0027]
A compressor 53 is disposed on the right side of the compressor base 36. As shown in FIG. 6, one end of a muffler 55 is connected to the discharge port of the compressor 53 via a relay pipe 54, and another relay pipe 56 is connected to the other end of the muffler 55. Yes.
[0028]
As shown in FIG. 3, a partition plate 57 extending in the left-right direction is integrally formed at the rear end portion of the duct 39. An exhaust port 58 is formed between the left end surface of the partition plate 57 and the inner surface of the duct 39, and both end portions of the pipe 44 of the capacitor 43 are drawn into the comp base 36 side through the exhaust port 58.
[0029]
The left end of the pipe 44 of the condenser 43 is connected to the muffler 55 via the relay pipe 56 described above, and the refrigerant discharged from the compressor 53 passes through the muffler 55 through the relay pipe 56 and enters the pipe 44 in the front row of the condenser 43. After flowing in, it flows backward along the meandering portion of the pipe 44.
[0030]
A C fan motor 59 is disposed on the left side of the compressor base 36, and a C fan 60 is fixed to the rotating shaft of the C fan motor 59. A bundle wire insertion hole 61 is formed in the bottom plate portion of the compressor base 36 at the left side of the C fan 60, and the power supply line 62 of the compressor 53 and the C fan motor 59 is connected to the bundle wire insertion hole 61. Has been inserted. Further, as shown in FIG. 5, a steel plate mounting plate 63 is fixed to the right arm portion 38 of the comp table 36, and a dryer 64 is fixed to the mounting plate 63.
[0031]
As shown in FIG. 3, each arm portion 37 extending in the front-rear direction of the compressor base 36 is formed with a plurality of through holes 65 located at the front-rear end portions. As shown in FIG. 4, screws 66 are inserted into these through-holes 65 from below, and the comp base 36 is formed by tightening the screws 66 into the bottom plate portion of the outer box 11. 11, the left and right side portions of the duct 39 are sandwiched and fixed between the arm portion 37 of the compressor base 36 and the bottom plate portion of the outer box 11.
[0032]
As shown in FIG. 5, a plurality of through-holes 67 are formed in each arm portion 38 extending in the vertical direction of the compressor base 36 at the upper end portion. Screws (not shown) are inserted into the through holes 67 from the rear, and the comp base 36 is fixed to the outer box 11 by tightening the screws into the rear plate portion of the outer box 11. Yes.
[0033]
As shown in FIG. 3, a through hole 68 is formed in the duct 39 so as to be positioned in front of each pipe base 41. As shown in FIG. 4, screws 69 are inserted into the through holes 68 from below, and the front side portion of the duct 39 is based on tightening the screws 69 into the bottom plate portion of the outer box 11. And is fixed to the bottom plate portion of the outer box 11. The bottom unit 35 is configured as described above.
[0034]
As shown in FIG. 5, a steel plate side plate 70 having a trapezoidal plate shape is screwed between the left arm portions 37 and 38 and between the right arm portions 37 and 38 of the compressor base 36. In addition, a steel plate rear plate 71 having a horizontally long rectangular shape is screwed between both arm portions 38 on the rear side of the compression table 36, and both side plates 70, the rear plate 71, the compression table 36, and the outer box 11 are fixed. A machine room 72 (see FIG. 4) is formed between the bottom plate portion and the partition plate 57 of the duct 39.
[0035]
As shown in FIG. 4, a synthetic resin duct cover 73 is disposed in front of the duct 39. The duct cover 73 covers the front surface of the duct 39 from the front, and an intake opening 74 is formed in the front plate portion of the duct cover 73, and an exhaust opening 75 is formed in the rear plate portion of the duct cover 73. Is formed. In addition, a gap is formed between the duct cover 73 and the cap 33 below the door 32, and a gap is formed between the duct cover 73 and the front surface of the duct 39. The air passage 76 is formed.
[0036]
As shown in FIG. 6, a dew proof pipe 77 is attached to the refrigerator body 11. The dew-proof pipe 77 includes triangular side pipe parts 78 and 79, a U-shaped upper pipe part 80, a front pipe part 81 connecting the one side pipe part 78 and the upper pipe part 80, and a T-shape. 3 has a U-shaped lower pipe portion 83, and one side pipe portion 79 is a right end portion of the pipe 44 of the capacitor 43 drawn into the compressor base 36 in FIG. The other side pipe part 78 is connected to the upper end part of the dryer 64 as shown in FIG.
[0037]
The side pipe portions 78 and 79 and the front pipe portion 81 of the dew proof pipe 77 are housed between the outer box 11 and the inner box 16, and the side pipe portions 78 and 79 are in close contact with the side plate portion of the outer box 11. is doing. The front pipe portion 81 is in close contact with the left front plate portion 12, the upper front plate portion 14, and the right front plate portion 13 of the outer box 11.
[0038]
The U-shaped upper pipe portion 80 of the dew prevention pipe 77 is housed in the uppermost partition wall 19 and is in close contact with the front plate portion of the partition wall 19. Further, the T-shaped middle pipe portion 82 is housed in the middle partition wall 21 and the partition wall 23, and is in close contact with the front plate portion of the partition wall 21 and the front plate portion of the partition wall 23. . Further, the U-shaped lower pipe portion 83 is housed in the lower partition wall 24 and is in close contact with the front plate portion of the partition wall 24.
[0039]
An evaporator 84 is disposed in the refrigerator body 18, and a lower end portion of the dryer 64 is connected to one end portion of the evaporator 84 via a capillary tube 85. An accumulator 86 is connected to the other end of the evaporator 84, and the accumulator 86 is connected to the suction port of the compressor 53 via a suction pipe 87.
[0040]
Next, the operation of the above configuration will be described. When the C fan 60 rotates, outside air is sucked into the duct 39 and flows rearward along the surface of the condenser 43. Then, the air flows into the machine room 72 through the exhaust port 58 and is blown to the C fan motor 59 and the compressor 53. The following (1) to (3) and the arrows in FIG. 4 indicate the intake path of the outside air into the duct 39.
[0041]
(1) Air passage 76 around the duct cover 73 → the intake hole 52 in the front plate portion of the duct 39 → the inside of the duct 39
(2) Intake opening 74 of duct cover 73 → exhaust opening 75 of duct cover 73 → intake hole 52 in front plate portion of duct 39 → inside of duct 39
(3) Gap between the bottom plate portion of the duct 39 and the installation surface → the intake holes 50 and 51 of the bottom plate portion of the duct 39 → the inside of the duct 39
[0042]
When the compressor 53 operates in this state, high-temperature and high-pressure refrigerant is discharged from the discharge port of the compressor 53, flows into the pipe 44 of the capacitor 43 through the muffler 55, and meanders along the pipe 44. At this time, heat exchange is performed between the wind flowing backward along the condenser 43 and the refrigerant flowing in the condenser 43. At the same time, heat is transmitted from the pipe 44 in the front row of the capacitor 43 to the lower front plate portion 15 of the outer box 11, and the lower front plate portion 15 is heated to a dew prevention temperature.
[0043]
The refrigerant meandering along the pipe 44 flows into the dew prevention pipe 77. Since the temperature of the refrigerant is higher by 5 ° C. to 10 ° C. than the installation temperature of the refrigerator, the left side plate portion, the right side plate portion, the left front plate portion 12 and the right front plate portion 13 of the outer box 11 are used. The upper front plate portion 14, the front plate portion of the partition wall 19, the front plate portion of the partition wall 21, the front plate portion of the partition wall 23, the front plate portion of the partition wall 24, and the gasket 34 of the doors 28 to 32 are dew-proof. The pipe 77 is heated to a dew prevention temperature.
[0044]
The refrigerant that has passed through the dew-proof pipe 77 becomes low-temperature and low-pressure when passing through the capillary tube 85, takes heat from the surrounding air when passing through the evaporator 84, and passes through the suction pipe 87 from the accumulator 86 to the compressor 53. Return to the inlet. An E fan device (not shown) is provided in the vicinity of the evaporator 84. This E fan device is formed by connecting an E fan to a rotating shaft of an E fan motor. When the E fan rotates, wind is blown to the evaporator 84 to generate cold air, and the refrigerator compartment 20 and the vegetable compartment. 22, the ice making room 25, the selection room 26, and the freezing room 27.
[0045]
Next, a method for assembling the capacitor 43 will be described. After the capacitor 43 is assembled in the duct 39 of the bottom unit 35, the bottom unit 35 is screwed to the bottom plate portion of the outer box 11. Then, the bottom unit 35 is fixed to the bottom plate portion of the outer box 11, and the pipe 44 in the foremost row of the capacitor 42 is held in contact with the front plate portion 15 below the outer box 11 by the duct 39.
[0046]
According to the above embodiment, the capacitor 43 is brought into contact with the front plate portion 15 below the outer box 11. For this reason, during operation of the refrigeration cycle, heat is transferred from the capacitor 43 to the front plate portion 15 and the front plate portion 15 is heated by the capacitor 43, so that dew on the front plate portion 15 is an electrical heating means. Prevented without use.
[0047]
Further, the capacitor 43 was held in contact with the lower front plate portion 15 by the duct 39. For this reason, after the capacitor 43 is assembled to the duct 39, the capacitor 43 is brought into contact with the front plate portion 15 simply by screwing the bottom unit 35 to the outer box 11, so that the assembling workability of the capacitor 43 is improved. .
[0048]
Further, since the pipe 44 of the capacitor 43 is arranged in parallel to the front plate portion 15 when viewed from above, the contact amount between the pipe 44 and the front plate portion 15 increases. For this reason, since the amount of heat transfer from the capacitor 43 to the front plate portion 15 increases, the front plate portion 15 easily rises to the dew prevention temperature.
[0049]
Further, the pipe 44 having a large heat dissipation amount in the capacitor 43 was brought into contact with the front plate portion 15. For this reason, since the amount of heat transfer from the capacitor 43 to the front plate portion 15 is further increased, the front plate portion 15 is further easily raised to the dew prevention temperature.
[0050]
In addition, since the capacitor 43 is arranged in an upwardly inclined manner, the front end portion of the capacitor 43 is in contact with the front plate portion 15, and the remaining portion of the capacitor 43 is arranged in the air flow path of the duct 39. For this reason, forced cooling air is efficiently blown to the remaining portion of the capacitor 43, so that the heat dissipation performance of the capacitor 43 is enhanced.
[0051]
In addition, since the capacitor 43 is arranged in an upwardly inclined shape, soot or the like enters the lower side of the capacitor 43 from the intake holes 50 to 52 of the duct 39 and is obstructed by the capacitor 43 when going backward. In addition, since the pair of ribs 49 are provided in the duct 39, when a bag or the like tries to wrap around from the lower side of the capacitor 43, the ribs 49 are obstructed. For this reason, soot or the like enters the machine chamber 72 from the lower side of the capacitor 43 through the exhaust port 58, or enters the machine chamber 72 through the exhaust port 58 after wrapping upward from the lower side of the capacitor 43. This prevents the wiring 62 in the machine room 72 from being damaged by wrinkles or the like. It should be noted that the intrusion of the wrinkles is impossible when the height of the gap is 8 mm or less.
[0052]
An air passage 76 is provided between the duct cover 73 and the cap 33 below the door 32. For this reason, since the wind flows along the surface of the cap 33 and the surface of the duct cover 73 when the C fan 60 rotates, it is difficult for the cap 33 and the duct cover 73 to be dewed.
[0053]
Further, since the pipe 44 of the capacitor 43 is hooked on the pipe hooking portion 48 of the duct 39, the displacement movement due to the vibration of the capacitor 43 or the like is prevented. In addition, since the pipe 44 in the foremost row of the capacitor 43 is fitted in the recess 42 of the duct 39, the displacement movement due to the vibration of the capacitor 43 and the like is prevented from this point as well. It is possible to prevent abnormal noise from being generated.
[0054]
In addition, since the refrigerant has flowed from the front to the rear of the condenser 43, the pipe 44 in the front row of the condenser 43 has a higher temperature than the pipes 44 in the remaining row. For this reason, since the amount of heat transfer from the capacitor 43 to the front plate portion 15 increases, the front plate portion 15 easily rises to the dew prevention temperature from this point.
[0055]
In the first embodiment, the pipe 44 in the foremost row of the capacitor 43 is brought into contact with the front plate portion 15. However, the present invention is not limited to this. For example, the pipe 44 in the second row from the front, etc. The plate portion 15 may be brought into contact, and in short, the pipe 44 only needs to be in contact with the front plate portion 15.
[0056]
Further, in the first embodiment, the capacitor 43 is arranged so that the straight pipe portion 46 is directed in the left-right direction. However, the present invention is not limited to this. For example, FIG. 7 showing the second embodiment of the present invention. As described above, the capacitor 43 may be disposed so that the straight pipe portion 46 is inclined forward as the predetermined U-shaped pipe portion 47 of the capacitor 43 is fitted into the concave portion 42 of the pipe base 41. .
[0057]
Moreover, in the said 1st Example, although the capacitor | condenser 43 was accommodated in the duct 39, it is not limited to this, For example, like FIG. 8 which shows 3rd Example of this invention, the evaporating dish 88 is provided. May be stored. In this case, the capacitor 43 including only the pipe 44 meandering in a U shape is used, and the front row pipe 44 is brought into contact with the front plate portion 15 based on fitting into the recess 42 of the pipe base 41, and the remaining row. It is preferable to arrange the pipe 44 outside the duct 39 so as to contact the lower surface of the duct 39.
[0058]
Next, a fourth embodiment of the present invention will be described with reference to FIG. A concave portion 89 that is recessed upward is formed in the front plate portion 15. The inner surface of the recess 89 has a semicircular shape along the outer peripheral surface of the pipe 44 of the capacitor 43, and the pipe 44 in the front row is fitted into the recess 89 and is in surface contact with the inner surface of the recess 89.
[0059]
According to the above embodiment, since the pipe 44 of the capacitor 43 is fitted in the recess 89, the pipe 44 and the front plate portion 15 are in surface contact with each other, and the contact area between the two is increased. For this reason, the amount of heat transfer from the capacitor 43 to the front plate portion 15 is further increased, and the front plate portion 15 is further easily raised to the dew prevention temperature.
[0060]
In the fourth embodiment, the capacitor 43 is inclined so that the straight pipe portion 46 is oriented in the left-right direction. However, the present invention is not limited to this. For example, the straight pipe portion 46 is oriented in the front-rear direction. It may be arranged so as to be inclined.
[0061]
Next, a fifth embodiment of the present invention will be described with reference to FIG. A capacitor 43 is accommodated horizontally in the duct 39. Each wire 45 on the upper surface side of the capacitor 43 has a substantially L-shaped bent portion 90 located at the front end portion, and each bent portion 90 is in contact with the front plate portion 15.
[0062]
According to the above embodiment, the bent portion 90 is provided on the wire 45 of the capacitor 43, and the bent portion 90 is brought into contact with the front plate portion 15. For this reason, since the freedom degree of arrangement | positioning of the capacitor | condenser 43 increases, heat can be transmitted to the front board part 15 from the capacitor | condenser 43, without making the capacitor | condenser 43 incline.
[0063]
In the fifth embodiment, the bent portion 90 is provided on the wire 45 on the upper surface side of the capacitor 43. However, the present invention is not limited to this. For example, the bent portion is provided on the wire 45 on the lower surface side. The bent portion on the lower surface side may be brought into contact with the front plate portion 15.
[0064]
In the fifth embodiment, the capacitor 43 is horizontally arranged so that the straight pipe portion 46 is directed in the left-right direction. However, the present invention is not limited to this. For example, the straight pipe portion 46 is directed in the front-rear direction. You may arrange horizontally so that. In this case, since the wire 45 is oriented in the left-right direction, the left and right end portions of the upper surface side wire 45 or the left and right end portions of the lower surface side wire 45 may be bent forward and brought into contact with the front plate portion 15.
[0065]
Next, a sixth embodiment of the present invention will be described with reference to FIG. A capacitor 43 is accommodated horizontally in the duct 39. In this capacitor 43, the pipe 44 in the foremost row is positioned higher than the pipes 44 in the remaining row, and the pipe 44 in the foremost row is fitted in the recess 42 of the pipe base 41 and contacts the front plate portion 15. is doing.
[0066]
According to the above embodiment, the pipe 44 in the foremost row of the capacitor 43 is provided in a portion higher than the pipes 44 in the remaining row, so that the pipe 44 can be brought into contact with the front plate portion 15 without inclining the capacitor 43. .
[0067]
In the sixth embodiment, the capacitor 43 is horizontally disposed so that the straight pipe portion 46 is directed in the left-right direction. However, the present invention is not limited to this. For example, the straight pipe portion 46 is directed in the front-rear direction. The U-shaped tube portion 47 at the front end of the pipe 44 may be in contact with the front plate portion 15.
[0068]
Moreover, in the said 1st-6th Example, although the capacitor | condenser 43 was made to contact the front-plate part 15 of the outer box 11, it is not limited to this, For example, a front plate among the bottom-plate parts of the outer box 11 You may make it contact the back part of the part 15, and the point should just contact the front end lower surface of the outer case 11.
[0069]
Moreover, in the said 1st-6th Example, although the pipe 44 or the wire 45 of the capacitor | condenser 43 was made to contact the front board part 15, it is not limited to this, For example, the pipe 44, the front board part 15, and Alternatively, a thin elastic material such as butyl rubber may be sandwiched between the wire 45 and the front plate portion 15.
[0070]
In the case of this configuration, the vibration of the capacitor 43 is absorbed by the elastic material and is not easily transmitted to the front plate portion 15, so that the vibration of the outer box 11 is prevented. Moreover, even if there is a manufacturing error or assembly error in the capacitor 43, the outer box 11, etc., the pipe 44 or the wire 45 comes into contact with the front plate portion 15 via the elastic material. A gap is formed between the wire 45 and the front plate portion 15 due to a manufacturing error or the like, and the amount of heat transfer from the capacitor 43 to the front plate portion 15 is prevented from being significantly reduced.
[0071]
Next, a seventh embodiment of the present invention will be described with reference to FIG. A condenser 43 is accommodated horizontally in the duct 39, and a metal heat transfer member 91 is interposed between the front end portion of the condenser 43 and the front plate portion 15. The length of the heat transfer member 91 in the left-right direction is set to be substantially the same as that of the capacitor 43, and the front end portion of the capacitor 43 has the entire left-right direction through the heat transfer member 91 and the front plate portion 15 and the bottom plate of the outer box 11. In contact with the part.
[0072]
According to the above embodiment, the capacitor 43 is brought into contact with the front plate portion 15 via the heat transfer member 91. For this reason, heat is transmitted from the condenser 43 to the front plate portion 15 during operation of the refrigeration cycle, and the front plate portion 15 is heated by the capacitor 43, so that the dew of the front plate portion 15 uses an electrical heating means. It is prevented without.
Further, since the entire region of the capacitor 43 in the left-right direction is brought into contact with the front plate portion 15 via the heat transfer member 91, the amount of heat transfer from the capacitor 43 to the heat transfer member 91 is increased, and the front plate portion 15 is prevented from being exposed to dew. It becomes easy to heat up.
[0073]
Next, an eighth embodiment of the present invention will be described with reference to FIG. The heat transfer member 91 is affixed with an aluminum tape 92 that circulates the upper surface, the rear surface, the lower surface, and the front surface, and the front end portion of the capacitor 43 contacts the front plate portion 15 via the heat transfer member 91 and the aluminum tape 92. ing.
[0074]
According to the above embodiment, the flexible aluminum tape 92 is wound around the heat transfer member 91. For this reason, since the vibration of the capacitor 43 is absorbed by the aluminum tape 92 and is difficult to be transmitted to the front plate portion 15, the vibration of the outer box 11 is prevented. In addition, since the capacitor 43 is relatively unaffected by the unevenness caused by the wire 45 and is in close contact with the aluminum tape 92, the amount of heat transfer from the capacitor 43 to the front plate portion 15 increases, and the front plate portion 15 rises to a dew prevention temperature. It becomes easy to warm.
[0075]
In the eighth embodiment, the aluminum tape 92 is wound around the upper surface, the rear surface, the lower surface, and the front surface of the heat transfer member 91. However, the present invention is not limited to this. For example, the ninth embodiment of the present invention. As shown in FIG. 14, aluminum foil 93 is attached to the front and lower surfaces of the heat transfer member 91 and the front plate portion 15, and the upper surface of the heat transfer member 91 is bonded to the bottom plate portion and the front plate portion 15 of the outer box 11. Also good.
[0076]
In the ninth embodiment, the heat transfer member 91 is bonded to the front plate portion 15. However, the present invention is not limited to this. For example, as shown in FIG. 15 showing the tenth embodiment of the present invention, the capacitor The upper surface of 43 may be adhered. In this case, an aluminum foil 93 is bonded to the upper and rear surfaces of the heat transfer member 91 and the upper surface of the capacitor 43, and a portion of the aluminum stay 93 bonded to the upper surface of the heat transfer member 93 is preferably brought into contact with the front plate portion 15. .
[0077]
Moreover, in the said 7th Example-10th Example, although the heat-transfer member 91, the aluminum tape 92, and the aluminum foil 93 were made to contact both the bottom-plate part of the outer box 11, and the front-plate part 15, it is limited to this. For example, the front plate portion 15 may be brought into contact only with the front plate portion 15 based on the rear end surface extending backward. In this case, since heat is intensively transferred from the capacitor 43 to the front plate portion 15, the front plate portion 15 is easily raised to the dew prevention temperature.
[0078]
Next, an eleventh embodiment of the present invention will be described with reference to FIG. A condenser 43 is accommodated horizontally in the duct 39, and a metal plate heat transfer member 94 is sandwiched between the upper surface of the condenser 43 and the front plate portion 15. The heat transfer member 94 is formed by connecting two horizontal plates having a step in the height direction, and the heat transfer member 94 is in close contact with both the capacitor 43 and the front plate portion 15 by its own elastic restoring force. ing.
[0079]
According to the said Example, the leaf | plate spring-shaped heat-transfer member 94 was used. For this reason, even when there is a manufacturing variation in the gap size between the capacitor 43 and the front plate portion 15, the heat transfer member 94 is in close contact with both the capacitor 43 and the front plate portion 15. Heat is reliably transmitted to the portion 15.
[0080]
In the eleventh embodiment, the heat transfer member 94 having a shape in which two horizontal plates having a step in the height direction are connected is used. However, the present invention is not limited to this. For example, the twelfth embodiment of the present invention is used. As shown in FIG. 17 showing the embodiment, a heat transfer member 95 made of a U-shaped metal plate may be used.
[0081]
In the seventh to twelfth embodiments, any one of the heat transfer members 91, 94, and 95 is sandwiched between the wire 45 of the capacitor 43 and the front plate portion 15. However, the present invention is not limited to this. For example, the wire 45 may not be provided at the front end portion of the capacitor 43, and any one of the heat transfer members 91, 94, and 95 may be sandwiched between the pipe 44 in the foremost row and the front plate portion 15.
[0082]
In the case of this configuration, the amount of heat transfer from the condenser 43 to any one of the heat transfer members 91, 94, and 95 increases, so that the front plate portion 15 can easily rise to the dew prevention temperature. In particular, when the block-shaped heat transfer member 91 is sandwiched between the pipe 44 and the front plate portion 15 in the foremost row, a concave portion having a semicircular cross section is formed on the lower surface of the heat transfer member 91, and The front row pipe 44 and the inner peripheral surface of the recess may be brought into surface contact with each other based on the fitting of the front row pipe 44.
[0083]
Moreover, in the said 7th-12th Example, although the capacitor | condenser 43 was horizontally arrange | positioned in the duct 39, it is not limited to this, For example, you may arrange | position in the shape of an uphill.
In the first to twelfth embodiments, the ribs 49 are provided on both the left and right sides of the duct 39. However, the present invention is not limited to this. For example, another rib extending between the ribs 49 in the front-rear direction. One or more may be provided. In this case, the outside air sucked into the right side of the duct 39 is prevented from being directed directly to the exhaust port 58 by another rib, and forced cooling air flows through the entire region of the capacitor 43. Will further increase.
[0084]
Further, in the first to twelfth embodiments, the bottom plate portion of the outer box 11 and the lower front plate portion 15 are brought into contact with each other. However, the present invention is not limited to this. It may be sandwiched. In this case, since heat does not easily escape from the front plate portion 15 to the bottom plate portion, the heating efficiency of the front plate portion 15 is increased, and the front plate portion 15 is easily heated to the dew prevention temperature.
[0085]
In the first to twelfth embodiments, the refrigerant flows from the front to the rear of the condenser 43. However, the present invention is not limited to this. For example, the refrigerant flows from the rear to the front of the condenser 43. May be.
Moreover, in the said 1st-12th Example, although the freezer compartment 27 was formed in the lowest step of the refrigerator main body 18, it is not limited to this, For example, you may form a vegetable compartment, a refrigerator compartment, etc. .
[0086]
【The invention's effect】
  As apparent from the above description, the refrigerator of the present invention has the following effects.
  According to the means of claim 1, the capacitor is placed on the lower surface of the front end of the outer box.Directly or through heat transfer memberMade contact. For this reason, since the front plate part below the outer box is heated by the heat from the capacitor, it is possible to prevent the lower front plate part from being exposed without using an electric heating means.Further, the remaining part except the front part of the capacitor is arranged in the air flow path of the duct. For this reason, since the wind is efficiently blown to the remaining portion of the capacitor, the heat dissipation performance of the capacitor is enhanced.
[0088]
  Claim2According to the described means, the capacitor was held by a duct. For this reason, just assembling the duct to the outer box, the capacitor can beDirectly into contact or through heat transfer memberSince they can be brought into contact with each other, the assembling workability of the capacitor is improved.
  Claim3According to the described means, the pipe of the capacitor was arranged substantially parallel to the front plate part below the outer box. For this reason, since the amount of heat transfer from the capacitor to the outer box increases, the front plate portion below the outer box is likely to rise to the dew prevention temperature.
[0089]
  Claim4According to the described means, the capacitor pipe is connected to the lower surface of the front end of the outer box.Directly into contact or through heat transfer memberMade contact. For this reason, since the amount of heat transfer from the capacitor to the outer box increases, the front plate portion below the outer box is likely to rise to the dew prevention temperature.
[0090]
  Claim5According to the described means, the expanded heat transfer portion of the condenser is connected to the lower surface of the front end of the outer box.Directly into contact or through heat transfer memberMade contact. For this reason, since it can respond by only bend | folding thin enlarged heat-transfer parts, such as a wire, the freedom degree of arrangement | positioning of a capacitor increases.
  Claim6According to the means described, DaA pair of ribs was provided in the duct, and an opening was provided between the pair of ribs in the duct. For this reason, it is possible to prevent the bag or the like from entering the machine room through the duct from the opening, and the wiring in the machine room from being damaged by the bag or the like.
[0091]
  Claim7According to the described means, the concave portion into which the condenser pipe is inserted is provided in the lower surface of the front end of the outer box or the heat transfer member. For this reason, since the amount of heat transfer from the capacitor to the outer box increases, the front plate portion below the outer box is likely to rise to the dew prevention temperature.
  Claim8According to the described means, an air passage is provided between the duct cover and the door. For this reason, since a wind can be forced to flow along an air path, it becomes difficult to attach dew to a door and a duct cover.
  Claim9According to the described means, the capacitor is mounted on the outer box, and the capacitor is connected to the lower surface of the front end of the outer box.Directly into contact or through heat transfer memberSince they come into contact with each other, the assembling workability of the capacitor is improved.
[Brief description of the drawings]
FIG. 1 is a diagram showing a first embodiment of the present invention (longitudinal sectional view showing a bottom end of a refrigerator)
2A is a front view showing the overall configuration, and FIG. 2B is a front view showing the overall configuration with the door removed.
FIG. 3 is a plan view showing a bottom unit.
FIG. 4 is a longitudinal sectional view schematically showing the bottom unit in a non-assembled state.
FIG. 5 is a perspective view showing the bottom unit, side plate, and rear plate in an exploded state.
FIG. 6 is a perspective view showing a refrigeration cycle.
FIG. 7 is a view showing a second embodiment of the present invention (a cross-sectional view schematically showing a front end bottom portion of a refrigerator);
FIG. 8 is a view corresponding to FIG. 7 showing a third embodiment of the present invention.
FIG. 9 is a view corresponding to FIG. 7 showing a fourth embodiment of the present invention.
FIG. 10 is a view corresponding to FIG. 7 showing a fifth embodiment of the present invention.
FIG. 11 is a view corresponding to FIG. 7 showing a sixth embodiment of the present invention.
FIG. 12 is a view corresponding to FIG. 7 showing a seventh embodiment of the present invention.
FIG. 13 is a view corresponding to FIG. 7 showing an eighth embodiment of the present invention.
FIG. 14 is a view corresponding to FIG. 7 showing a ninth embodiment of the present invention.
15 is a view corresponding to FIG. 7 showing a tenth embodiment of the present invention.
FIG. 16 is a view corresponding to FIG. 7 showing an eleventh embodiment of the present invention.
FIG. 17 is a view corresponding to FIG. 7 and showing a twelfth embodiment of the present invention.
FIG. 18 shows a conventional example.
[Explanation of symbols]
11 is an outer box, 15 is a front plate part, 32 is a door, 39 is a duct, 43 is a condenser, 44 is a pipe, 45 is a wire (enlarged heat transfer part), 49 is a rib, 50 to 52 are intake holes (opening parts) ), 73 is a duct cover, 76 is an air passage, 89 is a recess, and 91, 94, and 95 are heat transfer members.

Claims

An outer box with an open front,
A front plate provided on the lower side of the outer box;
A condenser of a refrigeration cycle provided below the outer box ;
A duct provided in the outer box and covering the capacitor from below;
An opening provided in the duct;
A fan that sucks outside air into the duct through the opening and flows backward along the condenser ;
The capacitor is
The front part is in direct contact with the lower surface of the front end of the outer box or through a heat transfer member,
The remaining part excluding the front part is separated from the lower surface of the outer box,
Said front and refrigerator whole including the remaining portion, characterized in der Rukoto those disposed inclined to descend toward the front to the rear.

The refrigerator according to claim 1, wherein the condenser is held in a state of being in direct contact with the front end lower surface of the outer box or in contact with a heat transfer member by the duct .

Pipe of said capacitor, refrigerator of claim 1 Symbol mounting, characterized in that it is arranged substantially parallel to the front plate.

Pipe of said capacitor, refrigerator of claim 1 Symbol mounting, characterized in that are in contact through a direct contact or heat transfer member to the front end lower surface of the outer box.

The capacitor has a pipe through which a refrigerant flows and an enlarged heat transfer section provided in the pipe,
The expansion heat transfer unit, refrigerator of claim 1 Symbol mounting, characterized in that are in contact through a direct contact or heat transfer member to the front end lower surface of the outer box.

In the duct, a pair of ribs extending in the front-rear direction is provided on both left and right side portions,
It said duct, refrigerator of claim 1 Symbol mounting, characterized in that said opening is located between the pair of ribs are provided.

The lower surface of the front end of the outer box or the heat transfer member is provided with a recess into which the condenser pipe is inserted,
The inner surface of the recess, refrigerator of claim 1 Symbol mounting, characterized in that it is in the shape along the outer peripheral surface of the pipe.

A duct cover that covers the duct from the front is provided in front of the duct,
Wherein between the duct cover and the door located above the duct cover, refrigerator of claim 1 Symbol mounting, characterized in that the air passage is formed.

In the refrigerator assembly method according to claim 1,
After assembling the capacitor to the duct, the capacitor is brought into direct contact with the lower surface of the front end of the refrigerator main body or through a heat transfer member based on assembling the duct to the outer box. How to assemble a refrigerator.