JP3833920B2

JP3833920B2 - Refrigerator and method for manufacturing refrigerator

Info

Publication number: JP3833920B2
Application number: JP2001313458A
Authority: JP
Inventors: 厚黒島; 高則中川; 文雄石川
Original assignee: 松下冷機株式会社
Priority date: 2001-10-11
Filing date: 2001-10-11
Publication date: 2006-10-18
Anticipated expiration: 2021-10-11
Also published as: JP2003121066A

Description

【０００１】
【発明の属する技術分野】
本発明は冷蔵庫の冷却ユニット取付け構造に関するものである。
【０００２】
【従来の技術】
図１２は従来の冷却器を有する冷蔵庫の断面図である。図８に示すように、１は冷蔵庫本体であって内箱２と外箱３と発泡断熱材４によって断熱箱体を構成し、扉５により貯蔵室６を形成している。７は冷却器であり、冷却器７には除霜温度検知用センサーが取り付けられている。冷却器７の下方には除霜ヒーター８と除霜水排水用水受け皿９を配置し、冷却ユニットを構成している。内箱２と外箱３の間には冷却器６へ冷媒を送る吸入管と除霜センサーと除霜ヒーター８に電気を送る配線が断熱材２発泡前に取り付けられており、内箱の穴から吐出している。
【０００３】
以上のような構成において、冷却器６は断熱材４を発泡後、吸入管とロウ付けし、内箱２の凸部に配置される。除霜センサー及び除霜ヒーター８も断熱材４発泡後取り付け、配線の結束を行う。
【０００４】
【発明が解決しようとする課題】
しかしながら、特に小型冷蔵庫の場合、冷却器収納部のスペースは小さく、上記従来の構成ではロウ付け、結線作業が困難となる。
【０００５】
本発明は冷却器と吸入管のロウ付け、電気制御装置の配線結束を冷却ユニットとして行ない、発泡前に内箱の背面から取付けることにより、作業工程を簡素化し、シール作業性を容易にすることで断熱性能を確保した冷却ユニットを備えた冷蔵庫を提供することを目的とする。
【０００６】
【課題を解決するための手段】
本発明の請求項１に記載の発明は、外箱と、内箱と、前記外箱と内箱の空間に発泡断熱材を充填して形成される断熱箱体と、前記断熱箱体内に形成した貯蔵室と、冷凍サイクルの冷却器と、前記冷却器の除霜関連部品とを備えた冷蔵庫において、前記冷却器と前記除霜関連部品を一体に組み込んで冷却ユニットを構成し、前記冷却ユニットを前記内箱の前記貯蔵室背面に開口された開口部に前記発泡断熱材が充填される側から取り付けるものであって、前記冷却ユニットは樹脂製の保持部材を有して、前記保持部材に冷却器と除霜関連部品が係合固定され、前記除霜関連部品のうち除霜ヒーターが前記冷却器の下部に備えられ、前記保持部材の下部両端に前記除霜ヒーターを挟持する挟持部材が一体成形され、かつ前記保持部材の上端部と両側のフランジ部は内箱の断熱材側に配し、前記保持部材の下端部は内箱の庫内側に配されるものであり、冷蔵庫本体への組み込み前に別途冷却器や除霜関連部品の組み立てを行うことができ、冷蔵庫奥の狭い空間で冷却器や除霜関連部品を組み込んでいく作業から解放され、かつ組み立て精度が向上する。
また、冷却ユニットのそれぞれの形状に合わせ保持構造を一体に成形することができ、保持部材への組み付けが精度よく、また容易になる。
また、部品数を低減し、組み立て工数を低減できる。また、冷却器との取り付け寸法関係が安定し除霜精度が高まる。
内箱を伝った結露水及び食品汁が断熱材側に侵入するのを防止できる。
【０００７】
請求項２に記載の発明は、外箱と、内箱と、前記外箱と内箱の空間に発泡断熱材を充填して形成される断熱箱体と、前記断熱箱体内に形成した貯蔵室と、冷凍サイクルの冷却器と、前記冷却器で冷却した冷気を前記貯蔵室内に循環させる送風ファンと、前記冷却器の除霜関連部品とを備えた冷蔵庫において、前記冷却器と前記除霜関連部品と前記送風ファンを一体に組み込んで冷却ユニットを構成し、前記冷却ユニットを前記内箱の前記貯蔵室背面に開口された開口部に前記発泡断熱材が充填される側から取り付けるものであって、前記冷却ユニットは樹脂製の保持部材を有して、前記保持部材に冷却器と除霜関連部品と送風ファンが係合固定され、前記除霜関連部品のうち除霜ヒーターが前記冷却器の下部に備えられ、前記保持部材の下部両端に前記除霜ヒーターを挟持する挟持部材が一体成形され、かつ前記保持部材の上端部と両側のフランジ部は内箱の断熱材側に配し、前記保持部材の下端部は内箱の庫内側に配されるものであり、冷蔵庫本体への組み込み前に別途冷却器や除霜関連部品，送風ファンの組み立てを行うことができ、冷蔵庫奥の狭い空間で冷却器や除霜関連部品，送風ファンを組み込んでいく作業から解放され、かつ組み立て精度が向上する。
また、冷却ユニットのそれぞれの形状に合わせ保持構造を一体に成形することができ、保持部材への組み付けが精度よく、また容易になる。
また、部品数を低減し、組み立て工数を低減できる。また、冷却器との取り付け寸法関係が安定し除霜精度が高まる。
内箱を伝った結露水及び食品汁が断熱材側に侵入するのを防止できる。
【０００８】
請求項３に記載の発明は、請求項１または請求項２に記載の発明において、保持部材の下端部が内箱または内箱上の構造物に当接して上下方向の位置決めをするものであり、下方への組み立てバラツキが抑えられる。
【０００９】
請求項４に記載の発明は、外箱と、内箱と、前記外箱と内箱の空間に発泡断熱材を充填して形成される断熱箱体と、前記断熱箱体内に形成した貯蔵室と、冷凍サイクルの冷却器と、前記冷却器の除霜関連部品とを備えた冷蔵庫において、前記冷却器と前記除霜関連部品を一体に組み込んで冷却ユニットを構成し、前記冷却ユニットを前記内箱の前記貯蔵室背面に開口された開口部に前記発泡断熱材が充填される側から取り付けるものであって、前記冷却ユニットは樹脂製の保持部材を有して、前記保持部材に冷却器と除霜関連部品が係合固定されるとともに前記冷却器から圧縮機に接続される吸入管を挿通するための切欠き孔が形成され、かつ前記保持部材の断熱材が充填される側に前記吸入管の位置決めのための係止部が形成され、前記係止部は前記吸入管の長さ調整機能を併せ持つものであり、冷蔵庫本体への組み込み前に別途冷却器や除霜関連部品の組み立てを行うことができ、冷蔵庫奥の狭い空間で冷却器や除霜関連部品を組み込んでいく作業から解放され、かつ組み立て精度が向上する。
また、冷却ユニットのそれぞれの形状に合わせ保持構造を一体に成形することができ、保持部材への組み付けが精度よく、また容易になる。
また、切欠き孔に吸入管が嵌められ、室内側に取り付けた冷却器から断熱材側に吸入管を取り出す際のバラツキを抑えることができる。
また、取り扱い時に吸入管が破損、変形しにくく、断熱材の発泡時に位置ずれを起こし内箱や外箱に接触して結露発生の要因となることがない。
小型冷蔵庫など断熱箱体の大きさに対して吸入管の長さが長くなり過ぎる場合にも、容易に他の構造物との接触なしに寸法調整が可能となる。
【００１０】
請求項５に記載の発明は、外箱と、内箱と、前記外箱と内箱の空間に発泡断熱材を充填して形成される断熱箱体と、前記断熱箱体内に形成した貯蔵室と、冷凍サイクルの冷却器と、前記冷却器で冷却した冷気を前記貯蔵室内に循環させる送風ファンと、前記冷却器の除霜関連部品とを備えた冷蔵庫において、前記冷却器と前記除霜関連部品と前記送風ファンを一体に組み込んで冷却ユニットを構成し、前記冷却ユニットを前記内箱の前記貯蔵室背面に開口された開口部に前記発泡断熱材が充填される側から取り付けるものであって、前記冷却ユニットは樹脂製の保持部材を有して、前記保持部材に冷却器と除霜関連部品と送風ファンが係合固定されるとともに前記冷却器から圧縮機に接続される吸入管を挿通するための切欠き孔が形成され、かつ前記保持部材の断熱材が充填される側に前記吸入管の位置決めのための係止部が形成され、前記係止部は前記吸入管の長さ調整機能を併せ持つものであり、冷蔵庫本体への組み込み前に別途冷却器や除霜関連部品，送風ファンの組み立てを行うことができ、冷蔵庫奥の狭い空間で冷却器や除霜関連部品，送風ファンを組み込んでいく作業から解放され、かつ組み立て精度が向上する。
また、冷却ユニットのそれぞれの形状に合わせ保持構造を一体に成形することができ、保持部材への組み付けが精度よく、また容易になる。
また、切欠き孔に吸入管が嵌められ、室内側に取り付けた冷却器から断熱材側に吸入管を取り出す際のバラツキを抑えることができる。
また、取り扱い時に吸入管が破損、変形しにくく、断熱材の発泡時に位置ずれを起こし内箱や外箱に接触して結露発生の要因となることがない。
小型冷蔵庫など断熱箱体の大きさに対して吸入管の長さが長くなり過ぎる場合にも、容易に他の構造物との接触なしに寸法調整が可能となる。
【００２６】
請求項６に記載の発明は、請求項５に記載の発明において、長さ調整された吸入管は保持部材の投影面内に配置したものであり、吸入管が保持部材より突出していないので、内箱に挿入する前の吸入管の他部品との接触、曲がり、折れを防ぐことができる。
【００３５】
【発明の実施の形態】
以下、本発明による冷蔵庫の実施の形態について、図面を参照しながら説明する。
【００３６】
（実施の形態１）
図１は、本発明の実施の形態１による冷蔵庫の断面図である。図２は同実施の形態の冷蔵庫における冷却ユニットの斜視図である。図３は同実施の形態の冷却ユニットの背面からの斜視図である。図４は同実施の形態の冷却ユニットの組み立て前の斜視図である。図５は同実施の形態の冷却ユニットの組み立て後の斜視図である。図６は同実施の形態の冷蔵庫における冷却器室の正面図である。
【００３７】
図１において、３０は冷蔵庫本体であって、３１は断熱箱体を形成する外箱であり、３２は充填された発泡断熱材であり、３３は冷蔵庫本体３０の内壁を形成する内箱である。冷蔵室３４の下部には冷凍室３５があり、断熱仕切壁３６で仕切られている。
【００３８】
３７は冷蔵室３４の前面開口部を閉塞する開閉式の冷蔵室扉であり、３８は冷凍室３５の前面開口部を閉塞する引出し式の冷凍室扉である。３９は冷凍室３５の後方に配置される冷却器室であり、冷却器室３９には冷却器４０、冷却器４０の下方に除霜ヒーター４１が収納され、その下方に冷却器４０の除霜ヒーター４１による除霜水を受ける水受け皿４２が設けられている。また冷却器４０の上方で断熱仕切壁３６の後方には送風ファン４３が設けられている。なお、冷却器４０の大きさは高さを奥行きの2倍以下となるように設計している。
【００３９】
４４は冷凍室３５と冷却器室３９を仕切る仕切板である。また冷蔵庫３０の後方下部には機械室４５を有し圧縮機４６を配置し、上部には水受け皿４２の水を溜めて圧縮機４６の熱で蒸発させる蒸発皿４７が備えられている。
【００４０】
図２において、図１のように冷蔵庫３０が組み立てられる過程について説明する。
【００４１】
冷却器４０と、除霜ヒーター４１や除霜終了検知器４８（以下、除霜センサー４８という）や温度ヒューズなど温度過昇防止用の安全装置（図示せず）などの除霜関連部品４９は樹脂製の保持部材５０（例えばポリプロピレン樹脂）に係止され、冷却ユニット５１が組立てられる。
【００４２】
保持部材５０の両側部は冷却器４０が取付けられる方向に向かってフランジ部５０ａを有し断面略コ字状を形成している。５０ｂは冷却器４０を保持部材５０に引掛けて固定する固定用爪であり、５０ｃは除霜センサー４８を保持する保持部である。５０ｄは保持部材５０の下部に一体成形された挟持部材であり除霜装置４１を挟持する。これらの係合部材はすべて保持部材５０に一体成形で形成されている。
【００４３】
また保持部材５０には冷却器４０が取付けられる周囲に凹部５０ｅが備えられ除霜関連部品４９の電気配線４９ａが凹部５０ｅ内に配設される。また保持部材５０には冷却器４０の出口部にあらかじめロウ付けして接続された液溜め器５２に接続した吸入管５３と熱交換される毛細管５４が位置決めされる切欠き孔５０ｆが形成されている。
【００４４】
また液溜め器５２は冷却器４０の高さ内に収まるように上部を庫内方向に傾斜させながら溶接されている。５０ｇは凹部５０ｅに配設した電気配線４９ａを通す貫通孔である。
【００４５】
図３は冷却ユニット５１の背面図であり、５５は保持部材５０の上下左右方向に格子状に一体成形された補強部材である。５６は補強部材５５内に上下左右から外箱に向かう切欠き部５６ａを有する収納部である。
【００４６】
図４において５７は内箱３３の背面に開口された開口部であり、冷却ユニット５１は図４のように内箱３３の背面方向からすなわち、発泡断熱材３２が充填される側から取付けられる。
【００４７】
図６において、２点鎖線で表した仕切部５８によって冷却器室３９内を仕切り、仕切部５８と内箱３３の壁面によって貯蔵室を循環した冷気が冷却器４０に戻る戻り通路５９を形成する。
【００４８】
図より保持部材５０の上端、両側端部は開口部５７の上端、両側端部よりも寸法が大きいため内箱３３の断熱材３２が充填される側に密着固定される。また保持部材５０の下端部は開口部５７の下端部内に挿入され内箱３３の貯蔵室側に密着固定される。また保持部材５０のフランジ部５０ａは内箱３３の側部に回り込み図６のように組み立てられる。
【００４９】
また除霜装置４１の下部には冷却器４０の除霜水を受ける樋状の水受け皿４２が保持部材５０と一体に成形されている。または保持部材５０の下端にヒンジ機構によって水受け皿４２が取り付けられていてもよい。
【００５０】
以上のように構成された冷蔵庫について、以下その動作を説明する。
【００５１】
まず、毛細管５４と半田付けされた吸入管５３が冷却器４０に溶接される。そして、この組み立て品を保持部材５０の固定用爪５０ｂに冷却器４０を引掛けて固定する。このとき、冷却器４０の大きさは高さを奥行きの2倍以下としており、液溜め器５２は冷却器４０の高さ内に収まるように予め溶接されているので冷却器室３９の高さが低くなり、内箱の開口部５７を大きくしなくても冷却ユニット５１を収容することができる。また、開口部５７を冷凍室３５の背面領域内に設けることができ、断熱仕切壁３６に干渉して冷却ユニット５１の取り付けに支障を生じることがない。また、無効スペースを低減できるので冷凍室３５の有効内容積をアップすることができる。
【００５２】
そして除霜ヒーター４１や除霜センサー４８、温度ヒューズなどの除霜関連部品４９をそれぞれ挟持部材５０ｄや保持部５０ｃなどに係合させて固定される。そしてこれら除霜関連部品４９の電気配線４９ａは凹部５０ｅ内に配設処理することができるので電気配線４９ａのたるみや風路抵抗、冷却器４０との引っ掛かりによる断線を防ぐことができる。
【００５３】
そして、保持部材５０の背面に形成した収納部５６間の切欠き部５６ａに吸入管５３を蛇行させて保持部材５０の投影面内に這わせるので、梱包箱に詰めて次工程に運搬する時や共栄会社等で組み立てられた冷却ユニット５１を搬入するときなど梱包しやすく、物流性を高めることができる。また、取り扱い時の吸入管５３の変形，折れなどの破損を防止することができ、断熱材３２の発泡時に吸入管５３が移動して外箱３１や内箱３３に接触することによる結露などの品質問題が発生することがない。また、冷却器４０と先にロウ付けを行なっても、挿入可能な為、ロウ付けによる内箱３３の変形や他部品への延焼を防止できる。
【００５４】
さらに、吸入管５３は蛇行させて保持部材５０の投影面内に這わせることにより、少ないスペースで長さ寸法の調整が可能となり、特に小型の冷蔵庫などサイズの小さい冷蔵庫で吸入管５３の長さを持て余す場合に効率よく収容することができる。
【００５５】
また、凹部５０ｅ内に這わせた電気配線４９ａは保持部材５０の背面に回され除霜関連部品の電気配線４９ａは収納部５６内に仮収納される。このため冷却ユニット５１の取り扱い時に電気配線４９ａ同士が絡まることなく整理することができ、作業性を高めることができる。
【００５６】
そして次工程では冷却ユニット５１が開口部５７に内箱３３の背面側から挿入固定される。また開口部５７の大きさは冷却ユニット５１より小さく、冷却ユニット５１を斜めに倒しながら下端部から挿入される。そして下端部が水受け皿６０に当れば、これが位置決めとなり、保持部材５０の上端が内箱３３の断熱材側にあたるまで回転させる。
【００５７】
このように、冷却ユニット５１の冷却器４０や除霜関連部品４９は内箱３３内へ、基部となる保持部材５０の上端部と両フランジ部５０ａは開口部５７内に入り込まず、内箱３３の外側に配置され断熱材３２内に埋没させる。そして保持部材５０の下端部は開口部５７内に入り込み、水受け皿６０が除霜ヒーター４１の下部に配置されるので、冷却器室３９のスペースにかかわらずほぼ同じ姿勢で冷却ユニット５１を組み込むことができる。また、庫内への断熱材３２の洩れを防ぐことができる。また保持部材５０のガタつきを低減することができる。また、内箱３３を伝った結露水及び食品汁が断熱材３２側に侵入するのを防止できる。
【００５８】
そして、冷却ユニット５１が挿入された内箱３３は、外箱３１に組み込まれ発泡断熱材３２が充填される。そして冷却ユニット５１背面に流入する断熱材３２は、切欠き部５６ａから収納部５６内に流入されるので、断熱材３２を全体に行き渡らせることができる。このため、空洞部が生じることはなく、断熱性が低下して結露や冷却性能の低下が発生することを防止できる。また切欠き部５６ａに載置された吸入管５３はそのまま充填された断熱材３２で固定される。
【００５９】
この時、断熱材３２の発泡前に内箱３３にあらかじめ断熱仕切壁３６が取り付けられ、冷却ユニット５１と一緒に断熱材３２が充填されれば断熱仕切壁３６を断熱材３２で固定でき、意匠的にも優れている。
【００６０】
そして、断熱材３２の発泡による保持部材５０の変形を格子形状の補強部材５５によって防止することができ、取り付けられた冷却器４０や除霜関連部品４９が変形，破損したり位置ずれを起こして品質問題が発生することを避けられる。
【００６１】
そして、内箱３３に組込まれた冷却ユニット５１において、冷却器４０と内箱３３間の両側部の一方に液溜め器５２を配置し、他方には戻り通路５９が配されるので、冷却器室３９内の無効スペースを低減することができ、前方に配置される冷凍室３５やその上部の冷蔵室３４の有効内容積を増加することができる。
【００６２】
（実施の形態２）
図７は、本発明の実施の形態２による冷蔵庫の要部断面図である。
【００６３】
図７において、保持部材６１は挟持手段６１ａを端部に形成し、内箱６２の端部を挟み込んで支持される。そして断熱材３２が充填されても、挟持手段６１ａと内箱６２の間は略Ｕ字状に形成されているので断熱材が入り込んでも冷却器室３９内に断熱材が洩れることはない。また、内箱を伝った結露水及び食品汁が断熱材３２側に侵入するのを防止することができる。
【００６４】
（実施の形態３）
図８は、本発明の実施の形態３による冷蔵庫の断面図である。図９は同実施の形態の冷蔵庫の組み立て前の斜視図である。
【００６５】
図８，図９において６３は冷却ユニットであり、冷却器４０と除霜関連部品４９を保持部材６４に係止固定することによって構成され、その下端部には冷却器４１の除霜水を受ける水受け皿６５が一体に樹脂成形されている。
【００６６】
以上のような構成により、除霜ヒーター４１と水受け皿６５の寸法関係がばらつかず安定し、除霜時の信頼性を高めることができる。また、保持部材６４の背面部と水受け皿６５の隙間がなく冷却器４０からの除霜水を確実に受けることができる。さらには、水受け皿６５が一体化され部品点数が減少してコストダウンを図ることができる。
【００６７】
その際、成形形状を簡単にするため、水受け皿６５の上部にヒンジ機構を設けて、成形時に排水穴の向きを型の抜き方向に揃えた方が合理的な成形が行える。
【００６８】
（実施の形態４）
図１０は、本発明の実施の形態４による冷蔵庫の断面図である。図１１は同実施の冷蔵庫の組み立て前の斜視図である。
【００６９】
図１０，図１１において、６６は、冷却ユニットであり、冷却器４０と除霜関連部品４９と送風ファン６７を保持部材６８に係止固定することによって構成されている。送風ファン６７は保持部材６８の上部にスペースをとって固定されている。
【００７０】
以上のような構成により、送風ファン６７まで含めた強制通風方式の冷蔵庫における冷却部品の集合体を一体化して組み込むことができ、組み立て品質の向上と組み立て工数の大幅な低減を図ることができる。また冷却器４０と送風ファン６７の配置関係がばらつかず冷却品質が安定し、ファン騒音などのばらつき因子も抑えることができる。
【００７１】
【発明の効果】
以上説明したように本発明の請求項１に記載の発明は、外箱と、内箱と、前記外箱と内箱の空間に発泡断熱材を充填して形成される断熱箱体と、前記断熱箱体内に形成した貯蔵室と、冷凍サイクルの冷却器と、前記冷却器の除霜関連部品とを備えた冷蔵庫において、前記冷却器と前記除霜関連部品を一体に組み込んで冷却ユニットを構成し、前記冷却ユニットを前記内箱の前記貯蔵室背面に開口された開口部に前記発泡断熱材が充填される側から取り付けるものであって、前記冷却ユニットは樹脂製の保持部材を有して、前記保持部材に冷却器と除霜関連部品が係合固定され、前記除霜関連部品のうち除霜ヒーターが前記冷却器の下部に備えられ、前記保持部材の下部両端に前記除霜ヒーターを挟持する挟持部材が一体成形され、かつ前記保持部材の上端部と両側のフランジ部は内箱の断熱材側に配し、前記保持部材の下端部は内箱の庫内側に配されるので、冷蔵庫本体への組み込み前に別途冷却器や除霜関連部品の組み立てを行うことができ、冷蔵庫奥の狭い空間で冷却器や除霜関連部品を組み込んでいく作業から解放され、かつ組み立て精度が向上する。
また、冷却ユニットのそれぞれの形状に合わせ保持構造を一体に成形することができ、保持部材への組み付けが精度よく、また容易になる。
また、部品数を低減し、組み立て工数を低減できる。また、冷却器との取り付け寸法関係が安定し除霜精度が高まる。
内箱を伝った結露水及び食品汁が断熱材側に侵入するのを防止できる。
【００７２】
また、請求項２に記載の発明は、外箱と、内箱と、前記外箱と内箱の空間に発泡断熱材を充填して形成される断熱箱体と、前記断熱箱体内に形成した貯蔵室と、冷凍サイクルの冷却器と、前記冷却器で冷却した冷気を前記貯蔵室内に循環させる送風ファンと、前記冷却器の除霜関連部品とを備えた冷蔵庫において、前記冷却器と前記除霜関連部品と前記送風ファンを一体に組み込んで冷却ユニットを構成し、前記冷却ユニットを前記内箱の前記貯蔵室背面に開口された開口部に前記発泡断熱材が充填される側から取り付けるものであって、前記冷却ユニットは樹脂製の保持部材を有して、前記保持部材に冷却器と除霜関連部品と送風ファンが係合固定され、前記除霜関連部品のうち除霜ヒーターが前記冷却器の下部に備えられ、前記保持部材の下部両端に前記除霜ヒーターを挟持する挟持部材が一体成形され、かつ前記保持部材の上端部と両側のフランジ部は内箱の断熱材側に配し、前記保持部材の下端部は内箱の庫内側に配されるものであり、冷蔵庫本体への組み込み前に別途冷却器や除霜関連部品，送風ファンの組み立てを行うことができ、冷蔵庫奥の狭い空間で冷却器や除霜関連部品，送風ファンを組み込んでいく作業から解放され、かつ組み立て精度が向上する。
また、冷却ユニットのそれぞれの形状に合わせ保持構造を一体に成形することができ、保持部材への組み付けが精度よく、また容易になる。
また、部品数を低減し、組み立て工数を低減できる。また、冷却器との取り付け寸法関係が安定し除霜精度が高まる。
内箱を伝った結露水及び食品汁が断熱材側に侵入するのを防止できる。
【００７３】
また、請求項３に記載の発明は、請求項１または請求項２に記載の発明において、保持部材の下端部が内箱または内箱上の構造物に当接して上下方向の位置決めをするものであり、下方への組み立てバラツキが抑えられる。
【００７４】
また、請求項４に記載の発明は、外箱と、内箱と、前記外箱と内箱の空間に発泡断熱材を充填して形成される断熱箱体と、前記断熱箱体内に形成した貯蔵室と、冷凍サイクルの冷却器と、前記冷却器の除霜関連部品とを備えた冷蔵庫において、前記冷却器と前記除霜関連部品を一体に組み込んで冷却ユニットを構成し、前記冷却ユニットを前記内箱の前記貯蔵室背面に開口された開口部に前記発泡断熱材が充填される側から取り付けるものであって、前記冷却ユニットは樹脂製の保持部材を有して、前記保持部材に冷却器と除霜関連部品が係合固定されるとともに前記冷却器から圧縮機に接続される吸入管を挿通するための切欠き孔が形成され、かつ前記保持部材の断熱材が充填される側に前記吸入管の位置決めのための係止部が形成され、前記係止部は前記吸入管の長さ調整機能を併せ持つものであり、冷蔵庫本体への組み込み前に別途冷却器や除霜関連部品の組み立てを行うことができ、冷蔵庫奥の狭い空間で冷却器や除霜関連部品を組み込んでいく作業から解放され、かつ組み立て精度が向上する。
また、冷却ユニットのそれぞれの形状に合わせ保持構造を一体に成形することができ、保持部材への組み付けが精度よく、また容易になる。
また、切欠き孔に吸入管が嵌められ、室内側に取り付けた冷却器から断熱材側に吸入管を取り出す際のバラツキを抑えることができる。
また、取り扱い時に吸入管が破損、変形しにくく、断熱材の発泡時に位置ずれを起こし内箱や外箱に接触して結露発生の要因となることがない。
小型冷蔵庫など断熱箱体の大きさに対して吸入管の長さが長くなり過ぎる場合にも、容易に他の構造物との接触なしに寸法調整が可能となる。
【００７５】
また、請求項５に記載の発明は、外箱と、内箱と、前記外箱と内箱の空間に発泡断熱材を充填して形成される断熱箱体と、前記断熱箱体内に形成した貯蔵室と、冷凍サイクルの冷却器と、前記冷却器で冷却した冷気を前記貯蔵室内に循環させる送風ファンと、前記冷却器の除霜関連部品とを備えた冷蔵庫において、前記冷却器と前記除霜関連部品と前記送風ファンを一体に組み込んで冷却ユニットを構成し、前記冷却ユニットを前記内箱の前記貯蔵室背面に開口された開口部に前記発泡断熱材が充填される側から取り付けるものであって、前記冷却ユニットは樹脂製の保持部材を有して、前記保持部材に冷却器と除霜関連部品と送風ファンが係合固定されるとともに前記冷却器から圧縮機に接続される吸入管を挿通するための切欠き孔が形成され、かつ前記保持部材の断熱材が充填される側に前記吸入管の位置決めのための係止部が形成され、前記係止部は前記吸入管の長さ調整機能を併せ持つものであり、冷蔵庫本体への組み込み前に別途冷却器や除霜関連部品，送風ファンの組み立てを行うことができ、冷蔵庫奥の狭い空間で冷却器や除霜関連部品，送風ファンを組み込んでいく作業から解放され、かつ組み立て精度が向上する。
また、冷却ユニットのそれぞれの形状に合わせ保持構造を一体に成形することができ、保持部材への組み付けが精度よく、また容易になる。
また、切欠き孔に吸入管が嵌められ、室内側に取り付けた冷却器から断熱材側に吸入管を取り出す際のバラツキを抑えることができる。
また、取り扱い時に吸入管が破損、変形しにくく、断熱材の発泡時に位置ずれを起こし内箱や外箱に接触して結露発生の要因となることがない。
小型冷蔵庫など断熱箱体の大きさに対して吸入管の長さが長くなり過ぎる場合にも、容易に他の構造物との接触なしに寸法調整が可能となる。
【００９１】
請求項６に記載の発明は、請求項５に記載の発明において、長さ調整された吸入管は保持部材の投影面内に配置したので、内箱に挿入する前の吸入管の他部品との接触、曲がり、折れを防ぐことができる。
【図面の簡単な説明】
【図１】本発明による冷蔵庫の実施の形態１の断面図
【図２】同実施の形態の冷蔵庫の要部斜視図
【図３】同実施の形態の冷蔵庫の要部の背面斜視図
【図４】同実施の形態の冷蔵庫の組立て前の斜視図
【図５】同実施の形態の冷蔵庫の組立て後の斜視図
【図６】同実施の形態の冷蔵庫の要部正面図
【図７】本発明による冷蔵庫の実施の形態２の要部断面図
【図８】本発明による冷蔵庫の実施の形態３の断面図
【図９】同実施の形態の冷蔵庫の組立て前の斜視図
【図１０】本発明による冷蔵庫の実施の形態４の断面図
【図１１】同実施の形態の冷蔵庫の組立て前の斜視図
【図１２】従来の冷蔵庫の断面図
【符号の説明】
３０冷蔵庫本体
３１外箱
３２断熱材
３３内箱
３５冷凍室（貯蔵室）
４０冷却器
４１除霜ヒーター
４２，６５水受け皿
４９除霜関連部材
４９ａ電気配線
５０，６１，６４，６８保持部材
５０ａフランジ部
５０ｄ挟持部材
５０ｅ凹部
５０ｆ切欠き孔
５１，６３，６６冷却ユニット
５２液溜め器
５３吸入管
５５補強部材
５６収納部
５７開口部
５９戻り通路
６１ａ挟持部材
６７送風ファン[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooling unit mounting structure for a refrigerator.
[0002]
[Prior art]
FIG. 12 is a sectional view of a refrigerator having a conventional cooler. As shown in FIG. 8, reference numeral 1 denotes a refrigerator body, in which an inner box 2, an outer box 3, and a foam heat insulating material 4 constitute a heat insulating box body, and a door 5 forms a storage room 6. Reference numeral 7 denotes a cooler, and a defrosting temperature detection sensor is attached to the cooler 7. Below the cooler 7, a defrost heater 8 and a water receiving tray 9 for defrost water drainage are arranged to constitute a cooling unit. Between the inner box 2 and the outer box 3, a suction pipe for sending refrigerant to the cooler 6, a defrost sensor, and a wiring for sending electricity to the defrost heater 8 are attached before the heat insulating material 2 is foamed. It is discharged from.
[0003]
In the configuration as described above, the cooler 6 foams the heat insulating material 4, brazes it with the suction pipe, and is disposed on the convex portion of the inner box 2. A defrost sensor and a defrost heater 8 are also attached after the foaming of the heat insulating material 4 to bind the wires.
[0004]
[Problems to be solved by the invention]
However, particularly in the case of a small refrigerator, the space for the cooler housing is small, and brazing and connecting work are difficult with the above-described conventional configuration.
[0005]
The present invention performs the brazing of the cooler and the suction pipe, the wiring of the electric control device as a cooling unit, and the mounting from the back of the inner box before foaming, thereby simplifying the work process and facilitating the sealing workability. It aims at providing the refrigerator provided with the cooling unit which ensured heat insulation performance.
[0006]
[Means for Solving the Problems]
  The invention according to claim 1 of the present invention includes an outer box, an inner box, a heat insulating box formed by filling a space between the outer box and the inner box with a foam heat insulating material, and the heat insulating box. In the refrigerator provided with the storage room, the cooler of the refrigeration cycle, and the defrosting related parts of the cooler, the cooling unit and the defrosting related parts are integrally incorporated to constitute a cooling unit, and the cooling unit Attached from the side filled with the foam heat insulating material to the opening of the inner box opened in the back of the storage chamberThe cooling unit includes a resin-made holding member, and a cooler and a defrosting-related component are engaged and fixed to the holding member, and the defrosting heater among the defrosting-related components is the cooling unit. A holding member that is provided at a lower portion of the container and that holds the defrosting heater is integrally formed at both lower ends of the holding member, and the upper end portion and the flange portions on both sides of the holding member are arranged on the heat insulating material side of the inner box. The lower end of the holding member is disposed inside the inner box.It is possible to assemble a separate cooler and defrosting-related parts before assembling into the refrigerator body, free from the work of assembling the cooler and defrosting-related parts in the narrow space behind the refrigerator, and Assembly accuracy is improved.
In addition, the holding structure can be integrally formed in accordance with the shape of each cooling unit, and the assembly to the holding member is accurate and easy.
Moreover, the number of parts can be reduced, and the number of assembly steps can be reduced. Moreover, the mounting dimension relationship with a cooler is stabilized and defrosting accuracy increases.
It is possible to prevent the condensed water and the food juice that have traveled through the inner box from entering the heat insulating material.
[0007]
  The invention according to claim 2 includes an outer box, an inner box, a heat insulating box formed by filling a space between the outer box and the inner box with a foam heat insulating material, and a storage chamber formed in the heat insulating box. A refrigerator with a refrigeration cycle, a blower fan that circulates cool air cooled by the cooler into the storage chamber, and a defrost-related component of the cooler, wherein the cooler and the defrost-related A cooling unit is constructed by integrating the component and the blower fan, and the cooling unit is attached from the side where the foam insulation is filled in the opening of the inner box that is opened in the back of the storage chamber.The cooling unit has a resin-made holding member, and a cooler, a defrosting-related component, and a blower fan are engaged and fixed to the holding member, and the defrosting heater among the defrosting-related components Is provided at the lower part of the cooler, and a holding member for holding the defrosting heater is integrally formed at both lower ends of the holding member, and the upper end portion and the flange portions on both sides of the holding member are on the heat insulating material side of the inner box The lower end portion of the holding member is disposed inside the inner box.It is possible to separately assemble a cooler, defrosting related parts and blower fan before assembling into the refrigerator body, and install the cooler, defrosting related parts and blower fan in a narrow space behind the refrigerator. Free from work and improve assembly accuracy.
In addition, the holding structure can be integrally formed in accordance with the shape of each cooling unit, and the assembly to the holding member is accurate and easy.
Moreover, the number of parts can be reduced, and the number of assembly steps can be reduced. Moreover, the mounting dimension relationship with a cooler is stabilized and defrosting accuracy increases.
It is possible to prevent the condensed water and the food juice that have traveled through the inner box from entering the heat insulating material.
[0008]
  The invention according to claim 3 is the invention according to claim 1 or 2,The lower end portion of the holding member comes into contact with the inner box or the structure on the inner box to position in the vertical direction, and assembling downward is suppressed.
[0009]
  The invention according to claim 4An outer box, an inner box, a heat insulating box formed by filling a space between the outer box and the inner box with foam heat insulating material, a storage chamber formed in the heat insulating box, a cooler for a refrigeration cycle, In the refrigerator including the defrosting-related parts of the cooler, the cooler and the defrosting-related parts are integrally integrated to form a cooling unit, and the cooling unit is opened at the back of the storage chamber of the inner box. The cooling unit has a resin holding member, and a cooler and a defrosting related part are engaged and fixed to the holding member. And a notch for inserting a suction pipe connected to the compressor from the cooler, and a locking portion for positioning the suction pipe on the side of the holding member filled with a heat insulating material And the locking portion adjusts the length of the suction pipe. It combines the functionIt is possible to assemble a separate cooler and defrosting-related parts before assembling into the refrigerator body, free from the work of assembling the cooler and defrosting-related parts in the narrow space behind the refrigerator, and Assembly accuracy is improved.
In addition, the holding structure can be integrally formed in accordance with the shape of each cooling unit, and the assembly to the holding member is accurate and easy.
In addition, a suction pipe is fitted into the notch hole, and variation when the suction pipe is taken out from the cooler attached to the indoor side to the heat insulating material side can be suppressed.
In addition, the suction pipe is not easily damaged or deformed during handling, and it does not cause a position shift at the time of foaming of the heat insulating material and contact with the inner box or the outer box to cause dew condensation.
Even when the length of the suction pipe becomes too long with respect to the size of the heat insulating box such as a small refrigerator, the dimensions can be easily adjusted without contact with other structures.
[0010]
  The invention described in claim 5An outer box, an inner box, a heat insulating box formed by filling a space between the outer box and the inner box with foam heat insulating material, a storage chamber formed in the heat insulating box, a cooler for a refrigeration cycle, In a refrigerator including a blower fan that circulates the cool air cooled by the cooler into the storage chamber and a defrosting related part of the cooler, the cooler, the defrosting related part, and the blower fan are integrally incorporated. The cooling unit is configured by attaching the cooling unit from the side filled with the foam heat insulating material to the opening of the inner box that is opened on the rear surface of the storage chamber, and the cooling unit is made of resin. The holding member has a cooler, a defrosting-related component, and a blower fan engaged and fixed to the holding member, and a notch hole is formed through which a suction pipe connected from the cooler to the compressor is inserted. And the heat insulating material of the holding member Engaging portions for positioning of the suction tube is formed on the side to be filled, the locking portion is both the length adjusting function of the suction pipeIt is possible to separately assemble a cooler, defrosting related parts and blower fan before assembling into the refrigerator body, and install the cooler, defrosting related parts and blower fan in a narrow space behind the refrigerator. Free from work and improve assembly accuracy.
In addition, the holding structure can be integrally formed in accordance with the shape of each cooling unit, and the assembly to the holding member is accurate and easy.
In addition, a suction pipe is fitted into the notch hole, and variation when the suction pipe is taken out from the cooler attached to the indoor side to the heat insulating material side can be suppressed.
In addition, the suction pipe is not easily damaged or deformed during handling, and it does not cause a position shift at the time of foaming of the heat insulating material and contact with the inner box or the outer box to cause dew condensation.
Even when the length of the suction pipe becomes too long with respect to the size of the heat insulating box such as a small refrigerator, the dimensions can be easily adjusted without contact with other structures.
[0026]
  Claim 6The invention described inClaim 5In the present invention, the suction pipe whose length has been adjusted is disposed within the projection surface of the holding member, and the suction pipe does not protrude from the holding member, so other parts of the suction pipe before being inserted into the inner box Contact, bend and break can be prevented.
[0035]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of a refrigerator according to the present invention will be described with reference to the drawings.
[0036]
(Embodiment 1)
FIG. 1 is a cross-sectional view of a refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a perspective view of a cooling unit in the refrigerator according to the embodiment. FIG. 3 is a perspective view from the back of the cooling unit according to the embodiment. FIG. 4 is a perspective view before assembly of the cooling unit of the embodiment. FIG. 5 is a perspective view after assembly of the cooling unit of the embodiment. FIG. 6 is a front view of a cooler chamber in the refrigerator according to the embodiment.
[0037]
In FIG. 1, 30 is a refrigerator body, 31 is an outer box that forms a heat insulation box, 32 is a filled heat insulating material, and 33 is an inner box that forms the inner wall of the refrigerator body 30. . In the lower part of the refrigerator compartment 34, there is a freezer compartment 35, which is partitioned by a heat insulating partition wall 36.
[0038]
Reference numeral 37 denotes an openable / refrigerated compartment door that closes the front opening of the refrigerator compartment 34, and 38 denotes a drawer-type freezer compartment door that closes the front opening of the freezer compartment 35. Reference numeral 39 denotes a cooler chamber disposed behind the freezing chamber 35. The cooler chamber 39 stores a cooler 40, a defrost heater 41 below the cooler 40, and a defroster of the cooler 40 below the cooler 40. A water tray 42 for receiving defrosted water from the heater 41 is provided. A blower fan 43 is provided above the cooler 40 and behind the heat insulating partition wall 36. The size of the cooler 40 is designed so that the height is less than twice the depth.
[0039]
A partition plate 44 partitions the freezer compartment 35 and the cooler compartment 39. The refrigerator 30 has a machine room 45 at the rear lower part of the refrigerator 30, and an upper part is provided with an evaporating dish 47 that collects water from the water tray 42 and evaporates it with the heat of the compressor 46.
[0040]
2, the process of assembling the refrigerator 30 as shown in FIG. 1 will be described.
[0041]
A defrosting related part 49 such as a cooler 40, a defrosting heater 41, a defrosting end detector 48 (hereinafter referred to as a defrosting sensor 48), a safety device (not shown) for preventing overheating such as a temperature fuse, and the like. The cooling unit 51 is assembled by being locked by a resin holding member 50 (for example, polypropylene resin).
[0042]
Both side portions of the holding member 50 have flange portions 50a toward the direction in which the cooler 40 is attached, and have a substantially U-shaped cross section. Reference numeral 50b denotes a fixing claw for hooking and fixing the cooler 40 to the holding member 50, and reference numeral 50c denotes a holding portion for holding the defrost sensor 48. Reference numeral 50 d denotes a holding member integrally formed at the lower part of the holding member 50, and holds the defrosting device 41. All of these engaging members are formed integrally with the holding member 50.
[0043]
In addition, the holding member 50 is provided with a recess 50e around the cooler 40, and the electrical wiring 49a of the defrosting related component 49 is disposed in the recess 50e. The holding member 50 is formed with a notch hole 50f for positioning the capillary tube 54 to be heat-exchanged with the suction pipe 53 connected to the liquid reservoir 52 previously brazed to the outlet of the cooler 40. Yes.
[0044]
The liquid reservoir 52 is welded while the upper part is inclined in the direction of the inside of the refrigerator so as to be within the height of the cooler 40. Reference numeral 50g denotes a through hole through which the electric wiring 49a disposed in the recess 50e is passed.
[0045]
FIG. 3 is a rear view of the cooling unit 51, and 55 is a reinforcing member integrally formed in a lattice shape in the vertical and horizontal directions of the holding member 50. Reference numeral 56 denotes a storage portion having a notch portion 56a in the reinforcing member 55 from the top, bottom, left, and right to the outer box.
[0046]
In FIG. 4, 57 is an opening opened on the back surface of the inner box 33, and the cooling unit 51 is attached from the back direction of the inner box 33, that is, from the side filled with the foam heat insulating material 32 as shown in FIG.
[0047]
In FIG. 6, the inside of the cooler chamber 39 is partitioned by a partition portion 58 represented by a two-dot chain line, and a return passage 59 is formed in which cool air circulated through the storage chamber is returned to the cooler 40 by the partition portion 58 and the wall surface of the inner box 33. .
[0048]
From the figure, the upper end and both end portions of the holding member 50 are larger in size than the upper end and both end portions of the opening 57, so that they are tightly fixed to the side of the inner box 33 where the heat insulating material 32 is filled. In addition, the lower end portion of the holding member 50 is inserted into the lower end portion of the opening 57 and is closely fixed to the storage chamber side of the inner box 33. Further, the flange portion 50a of the holding member 50 goes around the side portion of the inner box 33 and is assembled as shown in FIG.
[0049]
Further, a bowl-shaped water receiving tray 42 that receives the defrosted water from the cooler 40 is formed integrally with the holding member 50 at the lower portion of the defrosting device 41. Alternatively, the water tray 42 may be attached to the lower end of the holding member 50 by a hinge mechanism.
[0050]
About the refrigerator comprised as mentioned above, the operation | movement is demonstrated below.
[0051]
First, the suction pipe 53 soldered to the capillary 54 is welded to the cooler 40. Then, the assembled product is fixed by hooking the cooler 40 on the fixing claws 50 b of the holding member 50. At this time, the size of the cooler 40 is set to be less than twice the depth, and the liquid reservoir 52 is welded in advance so as to be within the height of the cooler 40. The cooling unit 51 can be accommodated without increasing the opening 57 of the inner box. Further, the opening 57 can be provided in the back surface region of the freezer compartment 35, and does not interfere with the heat insulating partition wall 36, thereby preventing the cooling unit 51 from being hindered. Moreover, since the ineffective space can be reduced, the effective internal volume of the freezer compartment 35 can be increased.
[0052]
And defrosting related parts 49, such as the defrost heater 41, the defrost sensor 48, and a thermal fuse, are each engaged with the clamping member 50d, the holding | maintenance part 50c, etc., and are fixed. And since the electric wiring 49a of these defrosting related components 49 can be disposed in the recess 50e, it is possible to prevent sagging of the electric wiring 49a, air path resistance, and disconnection due to catching with the cooler 40.
[0053]
Since the suction pipe 53 is meandered in the notch 56a between the storage portions 56 formed on the back surface of the holding member 50 so as to lie in the projection surface of the holding member 50, when packed in a packing box and transported to the next process. In addition, when the cooling unit 51 assembled by Kyoei company or the like is carried in, it can be easily packed and the logistics can be improved. In addition, the suction pipe 53 can be prevented from being deformed or broken during handling, and dew condensation caused by the movement of the suction pipe 53 when the heat insulating material 32 is foamed to contact the outer box 31 or the inner box 33. Quality problems never occur. In addition, even if brazing is first performed with the cooler 40, the inner box 33 can be prevented from being deformed or spread to other parts due to brazing.
[0054]
Further, the suction pipe 53 is meandered and placed in the projection plane of the holding member 50, so that the length dimension can be adjusted in a small space. In particular, the length of the suction pipe 53 in a small refrigerator such as a small refrigerator. Can be efficiently accommodated when there is a surplus.
[0055]
In addition, the electrical wiring 49 a laid in the recess 50 e is turned to the back surface of the holding member 50, and the electrical wiring 49 a of the defrosting related parts is temporarily stored in the storage unit 56. For this reason, when the cooling unit 51 is handled, the electric wires 49a can be arranged without being entangled, and workability can be improved.
[0056]
In the next step, the cooling unit 51 is inserted and fixed in the opening 57 from the back side of the inner box 33. The size of the opening 57 is smaller than that of the cooling unit 51, and the opening 57 is inserted from the lower end while tilting the cooling unit 51 obliquely. And if a lower end part contacts the water receiving tray 60, this will become positioning and it will rotate until the upper end of the holding member 50 contacts the heat insulating material side of the inner box 33. FIG.
[0057]
As described above, the cooler 40 and the defrosting related parts 49 of the cooling unit 51 do not enter the inner box 33, and the upper end portion of the holding member 50 and the both flange portions 50 a do not enter the opening 57, and the inner box 33. It is arrange | positioned on the outer side of this and it is made to bury in the heat insulating material 32. And since the lower end part of the holding member 50 enters in the opening part 57, and the water tray 60 is arrange | positioned under the defrost heater 41, the cooling unit 51 is integrated with the substantially same attitude | position irrespective of the space of the cooler chamber 39. Can do. In addition, leakage of the heat insulating material 32 into the interior can be prevented. Further, the play of the holding member 50 can be reduced. Moreover, it can prevent that the dew condensation water and food soup which passed along the inner box 33 penetrate | invade into the heat insulating material 32 side.
[0058]
The inner box 33 into which the cooling unit 51 is inserted is incorporated into the outer box 31 and filled with the foam heat insulating material 32. And since the heat insulating material 32 which flows in into the back surface of the cooling unit 51 flows into the accommodating part 56 from the notch part 56a, the heat insulating material 32 can be spread over the whole. For this reason, a cavity part does not arise and it can prevent that heat insulation falls and dew condensation and the fall of cooling performance generate | occur | produce. The suction pipe 53 placed on the notch 56a is fixed with the heat insulating material 32 filled as it is.
[0059]
At this time, if the heat insulating partition wall 36 is attached to the inner box 33 in advance before the heat insulating material 32 is foamed and the heat insulating material 32 is filled together with the cooling unit 51, the heat insulating partition wall 36 can be fixed with the heat insulating material 32. Also excellent.
[0060]
And the deformation | transformation of the holding member 50 by foaming of the heat insulating material 32 can be prevented by the lattice-shaped reinforcing member 55, and the attached cooler 40 and the defrosting related parts 49 are deformed, damaged or misaligned. Avoiding quality problems.
[0061]
In the cooling unit 51 incorporated in the inner box 33, the liquid reservoir 52 is disposed on one of both sides between the cooler 40 and the inner box 33, and the return passage 59 is disposed on the other side. The ineffective space in the chamber 39 can be reduced, and the effective internal volume of the freezer chamber 35 disposed in the front and the refrigerated chamber 34 above the chamber can be increased.
[0062]
(Embodiment 2)
FIG. 7 is a cross-sectional view of a main part of the refrigerator according to the second embodiment of the present invention.
[0063]
In FIG. 7, the holding member 61 is supported by sandwiching the end portion of the inner box 62 with the clamping means 61 a formed at the end portion. Even when the heat insulating material 32 is filled, since the space between the clamping means 61a and the inner box 62 is formed in a substantially U shape, the heat insulating material does not leak into the cooler chamber 39 even if the heat insulating material enters. Moreover, it can prevent that the dew condensation water and food juice which passed along the inner box penetrate | invade to the heat insulating material 32 side.
[0064]
(Embodiment 3)
FIG. 8 is a cross-sectional view of a refrigerator according to Embodiment 3 of the present invention. FIG. 9 is a perspective view before the refrigerator according to the embodiment is assembled.
[0065]
8 and 9, reference numeral 63 denotes a cooling unit, which is configured by locking and fixing the cooler 40 and the defrost-related component 49 to the holding member 64, and receives the defrost water of the cooler 41 at the lower end thereof. A water tray 65 is integrally molded with resin.
[0066]
With the configuration as described above, the dimensional relationship between the defrosting heater 41 and the water tray 65 does not vary and is stable, and the reliability during defrosting can be improved. Further, there is no gap between the back surface portion of the holding member 64 and the water receiving tray 65, and defrost water from the cooler 40 can be received reliably. Furthermore, the water receiving tray 65 is integrated, and the number of parts can be reduced to reduce the cost.
[0067]
At that time, in order to simplify the molding shape, it is possible to perform rational molding by providing a hinge mechanism at the upper part of the water receiving tray 65 and aligning the direction of the drainage hole in the mold drawing direction during molding.
[0068]
(Embodiment 4)
FIG. 10 is a sectional view of a refrigerator according to Embodiment 4 of the present invention. FIG. 11 is a perspective view of the refrigerator before assembly of the same embodiment.
[0069]
10 and 11, reference numeral 66 denotes a cooling unit, which is configured by locking and fixing the cooler 40, the defrosting related component 49, and the blower fan 67 to the holding member 68. The blower fan 67 is fixed above the holding member 68 with a space.
[0070]
With the configuration as described above, the assembly of cooling parts in the forced ventilation type refrigerator including the blower fan 67 can be integrated and incorporated, and the assembly quality can be improved and the number of assembly steps can be greatly reduced. Further, the arrangement relationship between the cooler 40 and the blower fan 67 does not vary, the cooling quality is stabilized, and variation factors such as fan noise can be suppressed.
[0071]
【The invention's effect】
  As described above, the invention described in claim 1 of the present invention isAn outer box, an inner box, a heat insulating box formed by filling a space between the outer box and the inner box with foam heat insulating material, a storage chamber formed in the heat insulating box, a cooler for a refrigeration cycle, In the refrigerator including the defrosting-related parts of the cooler, the cooler and the defrosting-related parts are integrally integrated to form a cooling unit, and the cooling unit is opened at the back of the storage chamber of the inner box. The cooling unit has a resin holding member, and a cooler and a defrosting related part are engaged and fixed to the holding member. A defrosting heater is provided at a lower part of the cooler among the defrosting related parts, a holding member for holding the defrosting heater is integrally formed at both lower ends of the holding member, and an upper end part of the holding member; The flanges on both sides are on the heat insulating material side of the inner box In addition, since the lower end of the holding member is arranged inside the inner box, the cooler and the defrosting-related parts can be separately assembled before being assembled into the refrigerator body, and cooled in a narrow space behind the refrigerator. This frees you from the work of assembling equipment and defrosting related parts, and improves assembly accuracy.
In addition, the holding structure can be integrally formed in accordance with the shape of each cooling unit, and the assembly to the holding member is accurate and easy.
Moreover, the number of parts can be reduced, and the number of assembly steps can be reduced. Moreover, the mounting dimension relationship with a cooler is stabilized and defrosting accuracy increases.
It is possible to prevent the condensed water and the food juice that have traveled through the inner box from entering the heat insulating material.
[0072]
  The invention according to claim 2An outer box, an inner box, a heat insulating box formed by filling a space between the outer box and the inner box with foam heat insulating material, a storage chamber formed in the heat insulating box, a cooler for a refrigeration cycle, In a refrigerator including a blower fan that circulates the cool air cooled by the cooler into the storage chamber and a defrosting related part of the cooler, the cooler, the defrosting related part, and the blower fan are integrally incorporated. The cooling unit is configured by attaching the cooling unit from the side filled with the foam heat insulating material to the opening of the inner box that is opened on the rear surface of the storage chamber, and the cooling unit is made of resin. A cooling unit, a defrosting related part, and a blower fan are engaged and fixed to the holding member, and a defrosting heater is provided at a lower part of the cooler among the defrosting related parts. The defrost heater is attached to the lower ends. The holding member to be held is integrally formed, the upper end portion of the holding member and the flange portions on both sides are arranged on the heat insulating material side of the inner box, and the lower end portion of the holding member is arranged on the inner side of the inner box. Yes, before assembling into the refrigerator body, the cooler, defrosting related parts and blower fan can be assembled separately, and from the work of installing the cooler, defrosting related parts and blower fan in the narrow space behind the refrigerator Freed and improved assembly accuracy.
In addition, the holding structure can be integrally formed in accordance with the shape of each cooling unit, and the assembly to the holding member is accurate and easy.
Moreover, the number of parts can be reduced, and the number of assembly steps can be reduced. Moreover, the mounting dimension relationship with a cooler is stabilized and defrosting accuracy increases.
It is possible to prevent the condensed water and the food juice that have traveled through the inner box from entering the heat insulating material.
[0073]
  Further, the invention according to claim 3 is the invention according to claim 1 or 2,The lower end portion of the holding member comes into contact with the inner box or the structure on the inner box to position in the vertical direction, and assembling downward is suppressed.
[0074]
  The invention according to claim 4An outer box, an inner box, a heat insulating box formed by filling a space between the outer box and the inner box with foam heat insulating material, a storage chamber formed in the heat insulating box, a cooler for a refrigeration cycle, In the refrigerator including the defrosting-related parts of the cooler, the cooler and the defrosting-related parts are integrally integrated to form a cooling unit, and the cooling unit is opened at the back of the storage chamber of the inner box. The cooling unit has a resin holding member, and a cooler and a defrosting related part are engaged and fixed to the holding member. And a notch for inserting a suction pipe connected to the compressor from the cooler, and a locking portion for positioning the suction pipe on the side of the holding member filled with a heat insulating material And the locking portion adjusts the length of the suction pipe. It also has functions, and can be assembled separately with the cooler and defrosting-related parts before assembling into the refrigerator body, freeing the work of incorporating the cooler and defrosting-related parts in the narrow space behind the refrigerator And assembly accuracy is improved.
In addition, the holding structure can be integrally formed in accordance with the shape of each cooling unit, and the assembly to the holding member is accurate and easy.
In addition, a suction pipe is fitted into the notch hole, and variation when the suction pipe is taken out from the cooler attached to the indoor side to the heat insulating material side can be suppressed.
In addition, the suction pipe is not easily damaged or deformed during handling, and it does not cause a position shift at the time of foaming of the heat insulating material and contact with the inner box or the outer box to cause dew condensation.
Even when the length of the suction pipe becomes too long with respect to the size of the heat insulating box such as a small refrigerator, the dimensions can be easily adjusted without contact with other structures.
[0075]
  The invention according to claim 5An outer box, an inner box, a heat insulating box formed by filling a space between the outer box and the inner box with foam heat insulating material, a storage chamber formed in the heat insulating box, a cooler for a refrigeration cycle, In a refrigerator including a blower fan that circulates the cool air cooled by the cooler into the storage chamber and a defrosting related part of the cooler, the cooler, the defrosting related part, and the blower fan are integrally incorporated. The cooling unit is configured by attaching the cooling unit from the side filled with the foam heat insulating material to the opening of the inner box that is opened on the rear surface of the storage chamber, and the cooling unit is made of resin. The holding member has a cooler, a defrosting-related component, and a blower fan engaged and fixed to the holding member, and a notch hole is formed through which a suction pipe connected from the cooler to the compressor is inserted. And the heat insulating material of the holding member Engaging portions for positioning of the suction tube is formed on the side to be filled, the locking portion is both the length adjusting function of the suction pipeIt is possible to separately assemble a cooler, defrosting related parts and blower fan before assembling into the refrigerator body, and install the cooler, defrosting related parts and blower fan in a narrow space behind the refrigerator. Free from work and improve assembly accuracy.
In addition, the holding structure can be integrally formed in accordance with the shape of each cooling unit, and the assembly to the holding member is accurate and easy.
In addition, a suction pipe is fitted into the notch hole, and variation when the suction pipe is taken out from the cooler attached to the indoor side to the heat insulating material side can be suppressed.
In addition, the suction pipe is not easily damaged or deformed during handling, and it does not cause a position shift at the time of foaming of the heat insulating material and contact with the inner box or the outer box to cause dew condensation.
Even when the length of the suction pipe becomes too long with respect to the size of the heat insulating box such as a small refrigerator, the dimensions can be easily adjusted without contact with other structures.
[0091]
  Claim 6The invention described inClaim 5In the above-described invention, since the suction pipe whose length has been adjusted is disposed within the projection surface of the holding member, it is possible to prevent contact, bending, and breakage of the suction pipe with other parts before being inserted into the inner box.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a first embodiment of a refrigerator according to the present invention.
FIG. 2 is a perspective view of a main part of the refrigerator according to the embodiment.
FIG. 3 is a rear perspective view of a main part of the refrigerator according to the embodiment.
FIG. 4 is a perspective view before assembly of the refrigerator according to the embodiment.
FIG. 5 is a perspective view after assembly of the refrigerator according to the embodiment;
FIG. 6 is a front view of main parts of the refrigerator according to the embodiment.
FIG. 7 is a cross-sectional view of main parts of a second embodiment of a refrigerator according to the present invention.
FIG. 8 is a sectional view of a third embodiment of a refrigerator according to the present invention.
FIG. 9 is a perspective view before the refrigerator according to the embodiment is assembled.
FIG. 10 is a sectional view of a refrigerator according to a fourth embodiment of the present invention.
FIG. 11 is a perspective view before assembly of the refrigerator according to the embodiment;
FIG. 12 is a sectional view of a conventional refrigerator
[Explanation of symbols]
30 refrigerator body
31 Outer box
32 Insulation
33 Inner box
35 Freezer room (storage room)
40 Cooler
41 Defrost heater
42,65 water tray
49 Defrosting-related materials
49a Electrical wiring
50, 61, 64, 68 Holding member
50a Flange
50d clamping member
50e recess
50f Notch hole
51, 63, 66 Cooling unit
52 Liquid reservoir
53 Suction tube
55 Reinforcing member
56 compartment
57 opening
59 Return passage
61a clamping member
67 Blower fan

Claims

外箱と、内箱と、前記外箱と内箱の空間に発泡断熱材を充填して形成される断熱箱体と、前記断熱箱体内に形成した貯蔵室と、冷凍サイクルの冷却器と、前記冷却器の除霜関連部品とを備えた冷蔵庫において、前記冷却器と前記除霜関連部品を一体に組み込んで冷却ユニットを構成し、前記冷却ユニットを前記内箱の前記貯蔵室背面に開口された開口部に前記発泡断熱材が充填される側から取り付けるものであって、前記冷却ユニットは樹脂製の保持部材を有して、前記保持部材に冷却器と除霜関連部品が係合固定され、前記除霜関連部品のうち除霜ヒーターが前記冷却器の下部に備えられ、前記保持部材の下部両端に前記除霜ヒーターを挟持する挟持部材が一体成形され、かつ前記保持部材の上端部と両側のフランジ部は内箱の断熱材側に配し、前記保持部材の下端部は内箱の庫内側に配されることを特徴とする冷蔵庫。An outer box, an inner box, a heat insulating box formed by filling a space between the outer box and the inner box with foam heat insulating material, a storage chamber formed in the heat insulating box, a cooler for a refrigeration cycle, In the refrigerator including the defrosting-related parts of the cooler, the cooler and the defrosting-related parts are integrally integrated to form a cooling unit, and the cooling unit is opened at the back of the storage chamber of the inner box. and a from the side of the foam insulation in the opening is filled in the mounting shall, wherein the cooling unit has a holding member made of resin, a cooler and defrosting related parts are engaged and fixed to the holding member Among the defrosting-related parts, a defrost heater is provided at a lower part of the cooler, a holding member for holding the defrost heater is integrally formed at both lower ends of the holding member, and an upper end portion of the holding member And the flanges on both sides are on the heat insulation side of the inner box Refrigerator, and the lower end portion of the holding member, characterized in that arranged on the compartment inner side of the inner box.

外箱と、内箱と、前記外箱と内箱の空間に発泡断熱材を充填して形成される断熱箱体と、前記断熱箱体内に形成した貯蔵室と、冷凍サイクルの冷却器と、前記冷却器で冷却した冷気を前記貯蔵室内に循環させる送風ファンと、前記冷却器の除霜関連部品とを備えた冷蔵庫において、前記冷却器と前記除霜関連部品と前記送風ファンを一体に組み込んで冷却ユニットを構成し、前記冷却ユニットを前記内箱の前記貯蔵室背面に開口された開口部に前記発泡断熱材が充填される側から取り付けるものであって、前記冷却ユニットは樹脂製の保持部材を有して、前記保持部材に冷却器と除霜関連部品と送風ファンが係合固定され、前記除霜関連部品のうち除霜ヒーターが前記冷却器の下部に備えられ、前記保持部材の下部両端に前記除霜ヒーターを挟持する挟持部材が一体成形され、かつ前記保持部材の上端部と両側のフランジ部は内箱の断熱材側に配し、前記保持部材の下端部は内箱の庫内側に配されることを特徴とする冷蔵庫。An outer box, an inner box, a heat insulating box formed by filling a space between the outer box and the inner box with foam heat insulating material, a storage chamber formed in the heat insulating box, a cooler for a refrigeration cycle, In a refrigerator including a blower fan that circulates the cool air cooled by the cooler into the storage chamber and a defrosting related part of the cooler, the cooler, the defrosting related part, and the blower fan are integrally incorporated. in and constitute a cooling unit, the cooling unit and the foam insulation is a attached shall from the side to be filled in the opening portion which is opened to the storage compartment rear surface of the inner box, wherein the cooling unit is made of resin A holding member, and a cooler, a defrosting-related component, and a blower fan are engaged and fixed to the holding member, and a defrosting heater is provided at a lower portion of the cooler among the defrosting-related components, and the holding member The defrost heater on the lower ends of Clamping member to lifting are integrally molded, and upper and both sides of the flange portion of the holding member is disposed in the heat insulating material side of the inner box, the lower end portion of the holding member is to be disposed compartment inside the inner box Features a refrigerator.

保持部材の下端部が内箱または内箱上の構造物に当接して上下方向の位置決めをすることを特徴とする請求項１または２に記載の冷蔵庫。The refrigerator according to claim 1 or 2 , wherein a lower end portion of the holding member is in contact with an inner box or a structure on the inner box to perform vertical positioning.

外箱と、内箱と、前記外箱と内箱の空間に発泡断熱材を充填して形成される断熱箱体と、前記断熱箱体内に形成した貯蔵室と、冷凍サイクルの冷却器と、前記冷却器の除霜関連部品とを備えた冷蔵庫において、前記冷却器と前記除霜関連部品を一体に組み込んで冷却ユニットを構成し、前記冷却ユニットを前記内箱の前記貯蔵室背面に開口された開口部に前記発泡断熱材が充填される側から取り付けるものであって、前記冷却ユニットは樹脂製の保持部材を有して、前記保持部材に冷却器と除霜関連部品が係合固定されるとともに前記冷却器から圧縮機に接続される吸入管を挿通するための切欠き孔が形成され、かつ前記保持部材の断熱材が充填される側に前記吸入管の位置決めのための係止部が形成され、前記係止部は前記吸入管の長さ調整機能を併せ持つことを特徴とする冷蔵庫。 An outer box, an inner box, a heat insulating box formed by filling a space between the outer box and the inner box with foam heat insulating material, a storage chamber formed in the heat insulating box, a cooler for a refrigeration cycle, In the refrigerator including the defrosting-related parts of the cooler, the cooler and the defrosting-related parts are integrally integrated to form a cooling unit, and the cooling unit is opened at the back of the storage chamber of the inner box. The cooling unit has a resin holding member, and a cooler and a defrosting related part are engaged and fixed to the holding member. And a notch for inserting a suction pipe connected to the compressor from the cooler, and a locking portion for positioning the suction pipe on the side of the holding member filled with a heat insulating material And the locking portion adjusts the length of the suction pipe. Refrigerator, characterized in that it combines the function.

外箱と、内箱と、前記外箱と内箱の空間に発泡断熱材を充填して形成される断熱箱体と、前記断熱箱体内に形成した貯蔵室と、冷凍サイクルの冷却器と、前記冷却器で冷却した冷気を前記貯蔵室内に循環させる送風ファンと、前記冷却器の除霜関連部品とを備えた冷蔵庫において、前記冷却器と前記除霜関連部品と前記送風ファンを一体に組み込んで冷却ユニットを構成し、前記冷却ユニットを前記内箱の前記貯蔵室背面に開口された開口部に前記発泡断熱材が充填される側から取り付けるものであって、前記冷却ユニットは樹脂製の保持部材を有して、前記保持部材に冷却器と除霜関連部品と送風ファンが係合固定されるとともに前記冷却器から圧縮機に接続される吸入管を挿通するための切欠き孔が形成され、かつ前記保持部材の断熱材が充填される側に前記吸入管の位置決めのための係止部が形成され、前記係止部は前記吸入管の長さ調整機能を併せ持つことを特徴とする冷蔵庫。 An outer box, an inner box, a heat insulating box formed by filling a space between the outer box and the inner box with foam heat insulating material, a storage chamber formed in the heat insulating box, a cooler for a refrigeration cycle, In a refrigerator including a blower fan that circulates the cool air cooled by the cooler into the storage chamber and a defrosting related part of the cooler, the cooler, the defrosting related part, and the blower fan are integrally incorporated. The cooling unit is configured by attaching the cooling unit from the side filled with the foam heat insulating material to the opening of the inner box that is opened on the rear surface of the storage chamber, and the cooling unit is made of resin. The holding member has a cooler, a defrosting-related component, and a blower fan engaged and fixed to the holding member, and a notch hole is formed through which a suction pipe connected from the cooler to the compressor is inserted. And the heat insulating material of the holding member Engaging portions for positioning of the suction tube is formed on the side to be filled, the locking portion Refrigerators, characterized in that both the length adjusting function of the suction pipe.

長さ調整された吸入管は保持部材の投影面内に配置したことを特徴とする請求項５に記載の冷蔵庫。6. The refrigerator according to claim 5 , wherein the suction pipe whose length has been adjusted is disposed within the projection surface of the holding member.