JP3759013B2

JP3759013B2 - Cooling storage

Info

Publication number: JP3759013B2
Application number: JP2001310434A
Authority: JP
Inventors: 拓也山崎; 克幸田中; 直人都築
Original assignee: Hoshizaki Electric Co Ltd
Current assignee: Hoshizaki Electric Co Ltd
Priority date: 2001-10-05
Filing date: 2001-10-05
Publication date: 2006-03-22
Anticipated expiration: 2021-10-05
Also published as: JP2003121049A

Description

【０００１】
【発明の属する技術分野】
本発明は本体の前後に開閉扉を備えるとともに、冷却器、凝縮器等を含む冷凍装置を備える冷却貯蔵庫に関するものである。
【０００２】
【従来の技術】
従来の冷凍装置（「冷凍ユニット」という）上置きの冷却貯蔵庫１は、図８、図９に示すように、食品等を冷却貯蔵庫本体である断熱箱体２と、庫内を冷やすための冷凍装置２１及び電装品などで構成される機械室４とに分かれている。
断熱箱体２は、ステンレス製の内箱外箱の間に断熱材３を備えて構成されており、その断熱箱体２の前面後面の開口部９及び天板部５には天板開口１１を有しており、前後の開口部９に備える開閉扉１０（「パススルー扉構造」という）と断熱箱体２の下部に脚１２などで構成されている。
また、機械室４は、複数の冷凍装置２１、２１、電装箱２７、サイドパネル６、６、フロントパネル７、７等で構成されており、機械室４上面は開放され、パネル等のカバーでは覆われていないため、凝縮器２３に吸い込まれる空気（図８に示す白矢印参照）は、機械室４上面より吸い込まれ、複数凝縮器２３、２３の後ろ上面より排気（図８に示す黒矢印参照）されている。
上記冷凍装置２１は、各々断熱箱体２外に備えるように凝縮器２３、凝縮器ファン２４、圧縮機２６等を架台上に載置して備えるとともに、貯蔵庫内に備えるように冷却器１１等を架台下に係止させて備えた組付部品で、断熱箱体２に備えた天板開口１１に、架台２２を嵌め込み組付けられている。
また、凝縮器２３、２３の吸込み側には、エアフィルター２５、２５が取り付けられていて、凝縮器２３、２３のホコリ、油などによる汚れ、目詰りを軽減させている。
【０００３】
【発明が解決しようとする課題】
上記従来の冷却貯蔵庫の構造は、冷却貯蔵庫内に備える冷却器ダクト５３の吐出口５５が後面の扉の方向に向いているので、冷凍装置の稼働中に後面の扉１０を開放すると、吐出口５５から吐き出された冷気は冷却貯蔵庫１本体外に送風されてしまい、本来冷却貯蔵庫内貯蔵物の冷却保存に使われる冷気を無駄に使用していた。
また、従来の冷却貯蔵庫１の構造は、凝縮器２３の吸込み側にエアフィルター２５が取り付けられていて、凝縮器２３に付くホコリ、油などによる汚れ、目詰りを軽減させているが、凝縮器以外の機械室４に備わる圧縮機２６や電装箱２７等は、凝縮器冷却用の凝縮器ファン２４の吸気により運ばれたホコリや油等により汚されていた。
【０００４】
【課題を解決するための手段】
上記従来の課題を解決するための手段として、本発明の請求項１の冷却貯蔵庫は、冷却貯蔵庫断熱壁の前後開口部に備えた開閉自在の扉と、前記貯蔵庫天板上の複数開口に各々備えた架台と、複数の前記架台上には凝縮器、凝縮器冷却用送風装置、圧縮機等と前記架台下には前記貯蔵庫内を冷却する冷却器等を備えた冷凍装置と、前記冷却器用送風装置を近傍に備えた吸込口と前記冷却器により冷やされた冷気を前記冷却器用送風装置により前記冷却貯蔵庫内に送風する吐出口を備えるとともに前記冷却器を被った冷却器ダクトとを備えた冷却貯蔵庫において、複数の前記架台に備わる冷凍装置の凝縮器を対向して前記開口に備えると、前記架台下に備えた冷却器ダクトの吐出口は各々側壁に向くように備えられ、前記吐出口から吐出された冷気は各々近傍の側壁に添って下方に流れ、冷却貯蔵庫内を循環し、前記冷却ダクトの吸込口に帰るようにしたことを特徴としている。
また、請求項２の発明は、請求項１の冷却貯蔵庫において、冷凍装置の前または後の少なくとも一方にフロントパネルを備えるとともにフロントパネルに備えた吸気口にはフィルタを備え、複数の凝縮器には吸気口から凝縮器冷却用の空気を吸込む吸気ダクトをそれぞれ備えたことにより、凝縮器以外の機械室に備わる圧縮機等の部品を汚すことはない。
また、請求項３の発明は、請求項１の冷却貯蔵庫において、冷凍装置の前および後に備えたフロントパネルの吸気口にはフィルタを備え、複数の凝縮器には吸気口から凝縮器冷却用の空気を吸込む吸気ダクトをそれぞれ備えるとともに、吸気ダクト内には、空気を吸気口から凝縮器に流す斜面板または仕切板を備えたことを特徴としている。
【０００５】
【発明の作用及び効果】
本発明の請求項1は、冷却貯蔵庫断熱壁の前後開口部に備えた開閉自在の扉と、前記貯蔵庫天板上の複数開口に各々備えた架台と、複数の前記架台上には凝縮器、凝縮器冷却用送風装置、圧縮機等と前記架台下には前記貯蔵庫内を冷却する冷却器等を備えた冷凍装置と、前記冷却器用送風装置を近傍に備えた吸込口と前記冷却器により冷やされた冷気を前記冷却器用送風装置により前記冷却貯蔵庫内に送風する吐出口を備えるとともに前記冷却器を被った冷却器ダクトとを備えた冷却貯蔵庫において、複数の架台に備わる冷凍装置の凝縮器を対向して開口に備えると、架台下に備えた冷却器ダクトの吐出口は各々側壁に向くように備えられ、吐出口から吐出された冷気は各々近傍の側壁に添って下方に流れ、冷却貯蔵庫内を循環し、冷却ダクトの吸込口に帰るようにしたことにより、冷却器ダクトから吐出された冷気は、冷気同士が抵抗することなく、側壁に添って、庫内を円滑に流れるようになり、貯蔵庫内貯蔵物の冷却保存に有効に使用される。
また、請求項２の発明は、請求項1の冷却貯蔵庫において、冷凍装置の前または後の少なくとも一方にフロントパネルを備えるとともにフロントパネルに備えた吸気口にはフィルタを備え、複数の凝縮器には吸気口から凝縮器冷却用の空気を吸込む吸気ダクトをそれぞれ備えたことにより、凝縮器以外の機械室に備わる圧縮機等の部品を汚すことはない。
また、請求項３の発明は、請求項１の冷却貯蔵庫において、冷凍装置の前および後に備えたフロントパネルの吸気口にはフィルタを備え、複数の凝縮器には吸気口から凝縮器冷却用の空気を吸込む吸気ダクトをそれぞれ備えるとともに、吸気ダクト内には、空気を吸気口から凝縮器に流す斜面板または仕切板を備えたことにより、凝縮器以外の機械室に備わる圧縮機等の部品を汚すことを防止するとともに、フロントパネルの吸気口から吸込んだ空気を凝縮器の方向に円滑に流すようにしている。
【０００６】
【発明の実施の形態】
以下、本発明の一実施形態について、業務用冷蔵庫等の冷却貯蔵庫１に適用した実施形態を図１ないし図２に基づいて説明する。なお、従来と同じ部分については同じ符号を付けて説明し、詳細には説明しない。
図1に示すように、冷却貯蔵庫１は、前面開口部９に取っ手１６を付けた４枚の開閉扉１０を、また、後面開口部９にも取っ手１６を付けた４枚の開閉扉１０を備えた断熱箱体２にて形成され、断熱箱体２上には冷凍装置等を備えた機械室４を備えている。
【０００７】
この冷却貯蔵庫１は、内箱外箱間に断熱材３を充填して構成された断熱箱体２の前面開口部９を４個に仕切るに仕切体１３が固着装備されており、冷却貯蔵庫１の内部には、貯蔵室５１が形成されている。
この貯蔵室５１内の天井部５には貯蔵室５１を冷却するために、凝縮器２３や圧縮機２６と連結している冷却器５２を備え、この冷却器５２は冷却器５２より冷却された冷気を貯蔵室５１内に送風する冷却器ファン５６を近傍に備えた吸込口５４と吐出口５５を備えた冷却器ダクト５３に被われて設けられており、冷却器ダクト５３の吐出口５５から吐き出される冷気により、棚１４上に載置された食材等の貯蔵物を冷却保存させている。
そして、開閉扉１０の内周面にはマグネットを内蔵したパッキン１５を装備し、仕切体１３および冷却貯蔵庫本体に密着させて、庫内冷気を外部に漏らさないようにしている。
【０００８】
冷却貯蔵庫１の上部には、図２に示すように、機械室４が形成されており、前面および後面をステンレス等の金属製のフロントパネル７、７に、左右側面をステンレス等の金属製のサイドパネル６、６にて被覆されると共に、天板部５に備わる複数の天板開口１１には各々架台２２、２２を備え、架台２２上には凝縮器２３、２３、凝縮器ファン２４、２４及び圧縮機２６、２６等が各々載置されている。
凝縮器ファン２４、２４によって、フロントパネル７、７にパンチング穴（長穴）で構成された吸気口３６、３６や機械室４の上方より、凝縮器ファン２４、２４によって、吸気された空気は凝縮器２３、２３を通過され、熱交換されて、凝縮器２３、２３の上部後方より排気（図１に示す黒矢印参照）されている。
また、複数の架台２２、２２に備わる冷凍装置の凝縮器２３、２３を対向して天板開口１１、１１に備えると、架台下に備えた冷却器ダクト５３、５３の吐出口５５、５５は各々側壁８、８に向くように備えられ、吐出口５５、５５から吐出された冷気（図１に示す白矢印参照）は各々近傍の側壁８、８に添って下方に流れて、冷却貯蔵庫内を循環し、冷却器ダクトの吸込口５４、５４に帰るようになっている。
【０００９】
上記の構造により、冷却器ダクトの吐出口５５から吐出された冷気は冷却貯蔵庫内を無駄無く循環し、貯蔵物を効果的に冷却保存させることができる。
また、従来の冷凍装置２２を備えた架台の下方に係止されている冷却器ダクトの吐出口５５は、通常後面に後壁があるパススルー扉構造でない冷蔵庫に使用されており、左右どちらとも後面開閉扉１０方向に向いていたが、架台２２を各々４５度内側に回動させるだけで、冷却器ダクトの吐出口５５の方向を冷却貯蔵庫内の左右の側壁に向けることが簡単にできる。
なお、冷却器ダクトの吐出口５５、５５の方向は、同じ向きに備えていると、吐出口５５、５５から吐出される冷気同志が抵抗しあい、円滑に流れないが、冷却貯蔵庫内の吐出口５５、５５各々近傍側の側壁に向ける、つまり、吐出口５５、５５をお互いに反対方向に備えることにより、冷気同志が抵抗することなく、円滑に流れるようになる。
なお、上記の第１実施形態では、複数の冷凍装置を機械室に備えている前後面に扉を備えた冷却貯蔵庫について説明したが、図３に示すように、本発明の第２実施形態として、単一の冷凍装置を備えている構造でもよく、この構造の場合は貯蔵庫天板上の開口、凝縮器２３、凝縮器冷却用送風装置２４、圧縮機２６および冷却器等の冷凍装置を備えた架台２２はいずれも一つを備えておればよい。
また、冷却貯蔵庫内に送風する冷却器ダクトの吐出口は、冷却貯蔵庫の両側にあるどちらか一方の側壁に向ければ、冷却器ダクトから吐出された冷気を、背面にある開閉扉から逃がすことなく、貯蔵庫内貯蔵物の冷却保存に有効に使用できるという第１実施形態と同様な効果を達成できる。
【００１０】
続いて、本発明の第３実施形態を説明する。図４〜図６に示すように、冷却貯蔵庫の機械室４に複数の凝縮器冷却用の外気を吸込むために、平面略Ｔ字状の吸気ダクト２８を備えている。
この吸気ダクト２８は、ステンレス等の金属製のダクト本体３７、エアフィルター取付枠３８で構成されており、左右に備わる架台に載置されている凝縮器２３、２３から前面のフロントパネル７に備わる吸気口３６まで続いている。
また、図６に示すように、吸気ダクト本体２８のフロントパネル７側の開口部にはフランジ３０を備え、フロントパネル７に備わる取付板２９とフランジ３０をネジや溶接等の固着手段にて固着するとともに、吸気ダクト本体２８の凝縮器２３側の開口部と凝縮器２３とをそれぞれネジや溶接等の固着手段にて密着固定させている。
なお、フロントパネル７の取付板２９と吸気ダクト本体のフランジ３０および吸気ダクト本体の凝縮器２３側の開口部と凝縮器２３との接触面には、凝縮器ファン２４による振動音の発生と冷気漏れを防止するため、それぞれ柔かいクッション材３１、３１を取り付けている。なお、このクッション材３１は、軟質塩ビ等のパッキンで行っても良い。
【００１１】
また、エアフィルター２５は、フロントパネル７を上方に開放して、吸気ダクト２８に設けられている開口より挿入し、エアフィルター取付枠２８に嵌め込んで備えている。
フロントパネルの吸気口３６は複数のパンチング穴（長穴）で構成されており、凝縮器ファン２４、２４によって吸込まれた空気（図４に示す白矢印参照）は、吸気ダクト内前面に付いているエアフィルター２５を通り、吸気ダクト２８内で左右に分かれて、凝縮器２３、２３の方へと流れ、凝縮器２３、２３を通過、熱交換されて、凝縮器２３、２３の上部後方より排気（図４に示す黒矢印参照）されるようになっている。
また、エアフィルター２５に付いた油は、エアフィルター２５を伝って下方に流れ、吸気ダクトの内底面に落ちるが、油が吸気ダクト２８の後方へ流れないように、吸気ダクト２８の下部に傾斜部３２を備え、その傾斜部３２の最下部には角穴３３が空いており、油はそこから取っ手を付けた脱着可能なドレンパン３４へと導かれるようになっている。
また、吸気ダクト２８は、架台２２、２２上に載置されるとともに、傾斜部３２の下方に支持部１７を備え、この支持部１７によって傾斜部３２が支えられている。
なお、上記発明の吸気ダクトは、凝縮器２３から前面のフロントパネル７に備わる吸気口３６まで続いているが、後面のフロントパネル７に吸気口３６を備え、その吸気口と凝縮器２３との間に備えてもよい。
また、凝縮器２３を通過した排気を円滑に排出するために、サイドパネル６、６に排気口を各々備えてもよい。
【００１２】
上記のように、フロントパネルの吸込口３６から左右に備わる複数の凝縮器２３、２３までを一つの吸気ダクト２８を途中で分岐させて設けた構造により、凝縮器以外の機械室に備わる圧縮機等の部品を汚すことはない。
また、エアフィルター２５の清掃や交換の場合は、フロントパネル７を上方に開放して、エアフィルター取付枠２８より脱着しているが、フロントパネル７の近傍にエアフィルター２５が備わっているので、容易に脱着し易くなっている。
また、複数のうちの１つの凝縮器ファン２４が故障などで止まったとしても、もう片方の凝縮器ファン２４が稼働しているので、凝縮器ファンが故障した方の凝縮器２３側から正常に稼働している凝縮器２３側に空気が流れることにより、凝縮器ファンが故障した方の凝縮器２３も熱交換される。
従って、フロントパネル７の吸気口３６から吸込んだ空気とともに凝縮器ファンが故障した凝縮器２３側から取り入れた空気は、吸気ダクト２８内を通り凝縮器ファンが故障していない方の凝縮器２３を通り排気され、凝縮器ファン２４が故障した方の冷凍装置の能力の低下を軽減でき、片方の凝縮器ファン２４の停止による冷却貯蔵庫内の温度上昇を抑え、庫内の食品などの貯蔵物が傷み難くなった。
【００１３】
続いて、本発明の第４実施形態を説明する。図７に示すように、冷却貯蔵庫機械室４に備えた吸気ダクト２８は、２個の平面略Ｌ字状で、ステンレス製一体に形成されている吸気ダクト２８、２８を備えており、一方の吸気ダクト２８について、その吸気ダクトの吸込み側を前面フロントパネルの吸気口３６に、また、もう片方の吸気ダクト２８について、その吸気ダクトの吸込み側を後面フロントパネルの吸気口３６に備えるとともに、複数の吸気ダクト２９の吐出し側を左右それぞれの凝縮器２３、２３側に備え、凝縮器ファン２４、２４によって、前面および後面フロントパネル吸気口３６、３６から吸込まれた空気（図７に示す白矢印参照）を完全に分けて、それぞれの凝縮器２３、２３に通過、熱交換させて、凝縮器２３、２３の上部後方より排気（図７に示す黒矢印参照）させるようになっている。
【００１４】
上記の吸気ダクト２８の構造によれば、フロントパネルの吸込口３６から左右に備わる複数の凝縮器２３、２３までを各々の吸気ダクト２８、２８を設けた構造により、凝縮器以外の機械室に備わる圧縮機等の部品を汚すことはない。
一方の凝縮器ファン２４がロックして故障した場合でも、他方の凝縮器ファン２４の吸気の影響を受けることなく、凝縮器２３出口の温度上昇を検知し、故障を知らせることができるため、圧縮機２６等の冷凍装置２１を故障させることはない。
また、エアフィルター２５、２５の清掃や交換の場合は、フロントパネル７、７を上方に開放して、エアフィルター取付枠２８、２８より脱着しているが、フロントパネル７、７の近傍にエアフィルター２５、２５が備わっているので、容易に脱着し易くなっている。
なお、吸気ダクト２８、２８の斜面板３９、３９は斜めに取り付けらており、フロントパネル７、７の吸気口３６、３６から吸込んだ空気が斜面板３９、３９に当たって、左右の凝縮器２３、２３に方向に円滑に流れるようになっている。
また、吸気ダクト２８の吸気口３６をフロントパネル７の前面と後面に設けたので、吸気口３６の凝縮器１個当たりの吸い込み面積が大きくなり、冷却能力の向上が計れた。
また、吸気ダクト２８を各々凝縮器の吸気用として設けることにより、吸気ダクト形状を小さくでき、組付け時の作業性が向上した。
また、２個の向かい合う凝縮器２３、２３間の配置寸法が正確でない場合（間隔が大きい、または小さい）でも、吸気ダクト２８を各々凝縮器の吸気用として設けることにより、寸法誤差を吸収しやすく、凝縮器と吸気ダクトの隙間を小さくすることが出来る。
なお、吸気ダクト２８と接触している前後フロントパネル７、７および凝縮器２３、２３には、本発明の第３実施形態と同様に、凝縮器ファン２４、２４による振動音の発生と冷気漏れを防止するため、それぞれクッション材を介在させている。
【００１５】
また、平面略Ｌ字状の吸気ダクト２８以外に、本発明の第５実施形態として、図８に示すように、平面略Ｌ字状の吸気ダクト２８を連結させて、略十字状で一体の吸気ダクト２８にし、その内側にステンレス等の金属製の仕切板３５を溶接等の固着方法で備えることにより、凝縮器ファン２４、２４によって、前面および後面フロントパネル吸気口３６、３６から吸込まれた空気（図８に示す白矢印参照）を完全に分けて、それぞれの凝縮器２３、２３に通過、熱交換させて、凝縮器２３、２３の上部後方より排気（図８に示す黒矢印参照）させるようになっている。
また、この仕切板３５は、斜めに取り付けられているので、吸気された空気が仕切板３５に当たって、左右の凝縮器２３、２３に方向に円滑に流れるようになっている。
なお、この実施形態の吸気ダクト２８は、第４実施形態の吸気ダクトに比べ、部品点数が少なく、コストダウンが計れると共に、一体の構造なので機械室４への配置作業が簡単にできる。
【００１６】
なお、本発明は、ユニット上置きの縦形冷蔵庫や冷凍庫以外にも、テーブル型の冷却貯蔵庫、天吊りショーケースなどの冷凍装置を搭載しているパススルー扉構造を備えた機械であれば、同様に適用できる。
【図面の簡単な説明】
【図１】本発明の冷却貯蔵庫正面図
【図２】本発明の冷却貯蔵庫平面図
【図３】本発明の第2実施形態の冷却貯蔵庫平面図
【図４】本発明の第３実施形態の冷却貯蔵庫平面図
【図５】本発明の第３実施形態の冷却貯蔵庫側面図
【図６】図４のＡ−Ａ線断面の要部概要図
【図７】本発明の第４実施形態の冷却貯蔵庫平面図
【図８】本発明の第５実施形態の冷却貯蔵庫平面図
【図９】従来の冷却貯蔵庫側面断面図
【図１０】従来の冷却貯蔵庫平面図
【符号の説明】
冷却貯蔵庫…１
断熱箱体…２
断熱材…３
機械室…４
天板部…５
サイドパネル…６
フロントパネル…７
側壁…８
開口部…９
開閉扉…１０
天板開口…１１
脚…１２
仕切体…１３
棚…１４
パッキン…１５
取っ手…１６
冷凍装置…２１
架台…２２
凝縮器…２３
凝縮器ファン…２４
エアフィルター…２５
圧縮機…２６
電装箱…２７
吸気ダクト…２８
取付板…２９
フランジ…３０
クッション材…３１
傾斜部…３２
角穴…３３
ドレンパン…３４
仕切板…３５
吸気口…３６
吸気ダクト本体…３７
エアフィルター取付枠…３８
斜面板…３９
貯蔵室…５１
冷却器…５２
冷却器ダクト…５３
吸込口…５４
吐出口…５５
冷却器ファン…５６[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooling storage that includes open / close doors before and after a main body and includes a refrigeration apparatus including a cooler, a condenser, and the like.
[0002]
[Prior art]
As shown in FIGS. 8 and 9, a conventional cooling storage 1 on a conventional refrigeration apparatus (referred to as a “refrigeration unit”) includes a heat insulating box 2 that is a main body of a cooling storage and a refrigeration for cooling the interior of the storage. The machine room 4 is divided into a device 21 and electrical equipment.
The heat insulation box 2 includes a heat insulating material 3 between stainless steel inner and outer boxes, and a top plate opening 11 is provided at an opening 9 and a top plate portion 5 on the front rear surface of the heat insulation box 2. And includes an opening / closing door 10 (referred to as a “pass-through door structure”) provided at the front and rear openings 9 and a leg 12 at the lower part of the heat insulating box 2.
The machine room 4 is composed of a plurality of refrigeration devices 21 and 21, an electrical box 27, side panels 6 and 6, front panels 7 and 7 and the like. Since it is not covered, the air sucked into the condenser 23 (see the white arrow shown in FIG. 8) is sucked in from the upper surface of the machine room 4 and exhausted from the upper rear surface of the multiple condensers 23 and 23 (the black arrow shown in FIG. 8). See).
The refrigeration apparatus 21 is provided with a condenser 23, a condenser fan 24, a compressor 26, and the like placed on a gantry so as to be provided outside the heat insulating box 2, and the cooler 11 and the like so as to be provided in a storage. Is attached to the top plate opening 11 provided in the heat insulating box 2 and is assembled.
Air filters 25 and 25 are attached to the suction sides of the condensers 23 and 23 to reduce dirt and clogging of the condensers 23 and 23 due to dust and oil.
[0003]
[Problems to be solved by the invention]
In the structure of the conventional cooling storage, the discharge port 55 of the cooler duct 53 provided in the cooling storage is directed toward the rear door, so that when the rear door 10 is opened during operation of the refrigeration apparatus, the discharge port The cold air discharged from 55 is blown out of the main body of the cooling storage 1 and the cold air originally used for the cooling preservation of the stored material in the cooling storage is wastefully used.
In addition, the structure of the conventional cooling storage 1 has an air filter 25 attached to the suction side of the condenser 23 to reduce dirt and clogging due to dust, oil, etc. attached to the condenser 23. The compressor 26, the electrical box 27, and the like provided in the machine room 4 other than the above are contaminated with dust, oil, or the like carried by the intake air of the condenser fan 24 for cooling the condenser.
[0004]
[Means for Solving the Problems]
As means for solving the above-described conventional problems, the cooling storage of claim 1 of the present invention includes an openable and closable door provided at the front and rear openings of the cooling storage insulation wall and a plurality of openings on the storage top plate. A refrigeration apparatus including a condenser, a condenser cooling blower, a compressor, and the like, and a cooler for cooling the inside of the storage unit under the gantry, and the cooler. A suction port provided with a blower in the vicinity, and a cooler duct having a discharge port through which the cool air cooled by the cooler is blown into the cooling storage by the blower for the cooler and the cooler duct covered with the cooler. In the cooling storage, when a plurality of condensers of the refrigeration apparatus provided in the gantry are provided facing the opening, the discharge ports of the cooler duct provided under the gantry are provided so as to face the side walls, respectively, and the discharge port Discharged from Air flows downward respectively along the side walls in the vicinity, was circulated in the cooling reservoir, is characterized in that as return to the suction port of the cooling duct.
Further, the invention of claim 2 is the cooling storage of claim 1, wherein the front panel is provided with a front panel at least before or after the refrigeration apparatus, the intake port provided in the front panel is provided with a filter, and the plurality of condensers are provided. Since each of the air intake ducts for sucking air for cooling the condenser from the air intake port is provided, parts such as a compressor provided in the machine room other than the condenser are not soiled.
Further, the invention of claim 3 is the cooling storage of claim 1, wherein the front panel intake port provided before and after the refrigeration apparatus is provided with a filter, and the plurality of condensers are provided for cooling the condenser from the intake port. Each of the air intake ducts includes an air intake duct, and a slope plate or a partition plate that allows air to flow from the air intake port to the condenser.
[0005]
[Action and effect of the invention]
Claim 1 of the present invention is a door that can be opened and closed provided at the front and rear opening of the cooling storage heat insulation wall, a pedestal provided at each of a plurality of openings on the storage top plate, a condenser on the plurality of pedestals, A condenser cooling air blower, a compressor and the like, a refrigeration device provided with a cooler etc. for cooling the inside of the storage under the frame, a suction port provided with the cooler air blower nearby, and the cooler In a cooling storage room provided with a discharge port for blowing the cooled cold air into the cooling storage room by the cooling device blower and a cooler duct covered with the cooling device, a condenser of a refrigeration device provided in a plurality of mounts is provided. When facing the opening, the discharge port of the cooler duct provided under the gantry is provided so as to face each side wall, and the cold air discharged from the discharge port flows downward along the adjacent side wall, and the cooling storage Circulating inside, cooling duct As a result , the cool air discharged from the cooler duct can flow smoothly through the inside of the warehouse along the side wall without causing resistance to each other. Used effectively for storage.
Further, the invention of claim 2 is the cooling storage of claim 1, wherein the front panel is provided with a front panel at least before or after the refrigeration apparatus, the intake port provided in the front panel is provided with a filter, and a plurality of condensers are provided. Since each of the air intake ducts for sucking air for cooling the condenser from the air intake port is provided, parts such as a compressor provided in the machine room other than the condenser are not soiled.
Further, the invention of claim 3 is the cooling storage of claim 1, wherein the front panel intake port provided before and after the refrigeration apparatus is provided with a filter, and the plurality of condensers are provided for cooling the condenser from the intake port. Each has an intake duct that sucks in air, and a slope plate or partition plate that allows air to flow from the intake port to the condenser. In addition to preventing fouling, the air sucked from the air intake of the front panel flows smoothly in the direction of the condenser.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention applied to a cooling storage 1 such as a commercial refrigerator will be described with reference to FIGS. 1 and 2. Note that the same parts as those in the related art will be described with the same reference numerals and will not be described in detail.
As shown in FIG. 1, the cooling storage 1 includes four doors 10 with a handle 16 attached to the front opening 9 and four doors 10 with a handle 16 attached to the rear opening 9. The heat insulation box 2 is provided, and the machine room 4 having a refrigeration apparatus and the like is provided on the heat insulation box 2.
[0007]
The cooling storage 1 is provided with a partition 13 fixed to partition the front opening 9 of the heat insulating box 2 constituted by filling the heat insulating material 3 between the inner and outer boxes into four pieces. A storage chamber 51 is formed in the interior.
In order to cool the storage chamber 51, the ceiling portion 5 in the storage chamber 51 includes a cooler 52 connected to the condenser 23 and the compressor 26, and the cooler 52 is cooled by the cooler 52. A cooler fan 56 that blows cool air into the storage chamber 51 is provided so as to be covered with a cooler duct 53 having a suction port 54 and a discharge port 55 provided in the vicinity thereof, from the discharge port 55 of the cooler duct 53. Stored items such as foods placed on the shelf 14 are cooled and stored by the cold air discharged.
And the packing 15 which incorporates the magnet is equipped in the inner peripheral surface of the opening-and-closing door 10, and it is made to contact | adhere to the partition 13 and a cooling storage main body, and it is trying not to leak cool air in a store | warehouse | chamber outside.
[0008]
As shown in FIG. 2, a machine room 4 is formed in the upper part of the cooling storage 1. The front and rear surfaces are made of metal front panels 7 and 7 made of stainless steel, and the left and right sides are made of metal such as stainless steel. A plurality of top plate openings 11 provided in the top plate part 5 are covered with side panels 6 and 6, respectively, and are provided with bases 22 and 22, and condensers 23 and 23, a condenser fan 24, 24, compressors 26, 26, and the like are mounted.
The air sucked by the condenser fans 24, 24 from above the intake ports 36, 36 and the machine room 4 formed by punching holes (long holes) in the front panels 7, 7 by the condenser fans 24, 24 is After passing through the condensers 23 and 23, heat exchange is performed, and exhaust is performed from the upper rear of the condensers 23 and 23 (see black arrows shown in FIG. 1).
Further, when the condensers 23 and 23 of the refrigeration apparatus provided in the plurality of mounts 22 and 22 are provided in the top plate openings 11 and 11 so as to face each other, the discharge ports 55 and 55 of the cooler ducts 53 and 53 provided under the mount are The cold air (refer to the white arrow shown in FIG. 1) discharged from the discharge ports 55 and 55 flows downward along the adjacent side walls 8 and 8 respectively, and is directed to the side walls 8 and 8, respectively. And return to the inlets 54 and 54 of the cooler duct.
[0009]
With the above structure, the cool air discharged from the discharge port 55 of the cooler duct circulates in the cooling storage room without waste, and the stored items can be effectively cooled and stored.
Further, the discharge port 55 of the cooler duct that is locked below the gantry with the conventional refrigeration apparatus 22 is used in a refrigerator that does not normally have a pass-through door structure with a rear wall on the rear surface. Although it was directed toward the opening / closing door 10, the direction of the discharge port 55 of the cooler duct can be easily directed to the left and right side walls in the cooling storage by simply rotating the gantry 22 inward by 45 degrees.
If the direction of the discharge ports 55 and 55 of the cooler duct is the same, the cold air discharged from the discharge ports 55 and 55 resists each other and does not flow smoothly, but the discharge ports in the cooling storage By providing the outlets 55 and 55 in opposite directions to each other, the cold air can flow smoothly without resistance.
In the above-described first embodiment, the cooling storage box having doors on the front and rear surfaces provided with a plurality of refrigeration apparatuses in the machine room has been described. However, as shown in FIG. 3, as the second embodiment of the present invention. The structure may include a single refrigeration device. In this structure, the refrigeration device includes an opening on the storage top plate, a condenser 23, a condenser cooling fan 24, a compressor 26, and a cooler. Any of the mounts 22 may be provided with one.
Also, if the outlet of the cooler duct that blows air into the cooling storage is directed to one of the side walls on both sides of the cooling storage, the cool air discharged from the cooler duct will not escape from the open / close door on the back. The effect similar to 1st Embodiment that can be used effectively for the cold preservation of the store thing in a storage can be achieved.
[0010]
Subsequently, a third embodiment of the present invention will be described. As shown in FIG. 4 to FIG. 6, a plane substantially T-shaped intake duct 28 is provided in order to suck a plurality of outside air for cooling the condenser into the machine room 4 of the cooling storage.
The intake duct 28 includes a duct body 37 made of metal such as stainless steel and an air filter mounting frame 38. The intake duct 28 is provided on the front panel 7 on the front side from the condensers 23 and 23 mounted on the left and right mounts. It continues to the intake port 36.
Also, as shown in FIG. 6, the opening on the front panel 7 side of the intake duct body 28 is provided with a flange 30, and the mounting plate 29 and the flange 30 provided on the front panel 7 are fixed by fixing means such as screws or welding. At the same time, the opening on the condenser 23 side of the intake duct body 28 and the condenser 23 are fixed in close contact with fixing means such as screws or welding.
In addition, on the contact surface between the mounting plate 29 of the front panel 7, the flange 30 of the intake duct body and the opening of the intake duct body on the condenser 23 side and the condenser 23, generation of vibration noise by the condenser fan 24 and cool air In order to prevent leakage, soft cushion materials 31 and 31 are attached, respectively. The cushion material 31 may be made of packing such as soft vinyl chloride.
[0011]
The air filter 25 is provided with the front panel 7 opened upward, inserted through an opening provided in the intake duct 28, and fitted into the air filter mounting frame 28.
The front panel intake port 36 is composed of a plurality of punching holes (long holes), and the air sucked by the condenser fans 24, 24 (see the white arrows shown in FIG. 4) is attached to the front surface in the intake duct. It passes through the air filter 25, is divided into left and right in the intake duct 28, flows toward the condensers 23, 23, passes through the condensers 23, 23, is heat-exchanged, and from the upper rear of the condensers 23, 23 Exhaust is performed (refer to the black arrow shown in FIG. 4).
The oil attached to the air filter 25 flows downward through the air filter 25 and falls to the inner bottom surface of the intake duct, but is inclined to the lower part of the intake duct 28 so that the oil does not flow to the rear of the intake duct 28. A square hole 33 is provided at the lowermost portion of the inclined portion 32, and oil is guided from there to a detachable drain pan 34 with a handle.
The intake duct 28 is placed on the gantry 22, 22, and includes a support portion 17 below the inclined portion 32, and the inclined portion 32 is supported by the support portion 17.
The intake duct of the present invention continues from the condenser 23 to the intake port 36 provided on the front panel 7 on the front surface. The intake port 36 is provided on the front panel 7 on the rear surface, and the intake port and the condenser 23 are connected to each other. You may prepare in between.
Moreover, in order to discharge | emit the exhaust_gas | exhaustion which passed through the condenser 23 smoothly, you may provide an exhaust port in the side panels 6 and 6, respectively.
[0012]
As described above, a compressor provided in a machine room other than the condenser has a structure in which a plurality of condensers 23, 23 provided on the left and right sides of the front panel are provided by branching one intake duct 28 on the way. The parts such as are not soiled.
In the case of cleaning or replacement of the air filter 25, the front panel 7 is opened upward and detached from the air filter mounting frame 28. However, since the air filter 25 is provided in the vicinity of the front panel 7, Easily removable.
Also, even if one of the plurality of condenser fans 24 stops due to a failure or the like, the other condenser fan 24 is operating, so that it normally operates from the condenser 23 side where the condenser fan has failed. As air flows to the side of the condenser 23 that is operating, the condenser 23 in which the condenser fan has failed is also heat-exchanged.
Therefore, the air taken in from the condenser 23 side where the condenser fan has failed together with the air sucked from the intake port 36 of the front panel 7 passes through the intake duct 28 and passes through the condenser 23 where the condenser fan has not failed. It is possible to reduce the decrease in the capacity of the refrigeration system in which the condenser fan 24 is faulty and the temperature of the cooling storage box due to the stoppage of one condenser fan 24 is suppressed. It became difficult to hurt.
[0013]
Subsequently, a fourth embodiment of the present invention will be described. As shown in FIG. 7, the intake duct 28 provided in the cooling storage machine room 4 is provided with two intake air ducts 28, 28 that are formed in a substantially flat L shape and are integrally formed of stainless steel. For the intake duct 28, the intake side of the intake duct is provided in the intake port 36 of the front front panel, and for the other intake duct 28, the intake side of the intake duct is provided in the intake port 36 of the rear front panel. The air intake duct 29 is provided on the left and right condensers 23 and 23 side, and air sucked from the front and rear front panel intake ports 36 and 36 by the condenser fans 24 and 24 (white shown in FIG. 7). (See arrows) completely divided, passed through the respective condensers 23, 23, heat exchanged, exhausted from the upper rear of the condensers 23, 23 (see black arrows shown in FIG. 7) It is made as to the cause.
[0014]
According to the structure of the intake duct 28 described above, a plurality of condensers 23, 23 provided on the left and right sides from the suction port 36 of the front panel are provided in the machine room other than the condenser by the structure provided with the respective intake ducts 28, 28. Parts such as compressors are not soiled.
Even when one condenser fan 24 is locked and failed, the temperature rise at the outlet of the condenser 23 can be detected and notified of the failure without being influenced by the intake air of the other condenser fan 24. The refrigeration device 21 such as the machine 26 is not damaged.
When cleaning or replacing the air filters 25, 25, the front panels 7, 7 are opened upward and detached from the air filter mounting frames 28, 28. Since the filters 25 and 25 are provided, it is easy to attach and detach.
The inclined plates 39 and 39 of the intake ducts 28 and 28 are attached obliquely, and air sucked from the intake ports 36 and 36 of the front panels 7 and 7 strikes the inclined plates 39 and 39, and the left and right condensers 23, 23 flows smoothly in the direction.
Further, since the intake port 36 of the intake duct 28 is provided on the front surface and the rear surface of the front panel 7, the suction area per condenser of the intake port 36 is increased, and the cooling capacity can be improved.
Further, by providing the intake ducts 28 for the intake of the condensers, the shape of the intake duct can be reduced, and the workability during assembly is improved.
Further, even when the arrangement size between the two opposing condensers 23 and 23 is not accurate (the interval is large or small), the dimensional error can be easily absorbed by providing the intake duct 28 for intake of the condenser. The gap between the condenser and the intake duct can be reduced.
Note that the front and rear front panels 7 and 7 and the condensers 23 and 23 that are in contact with the intake duct 28 generate vibration noise and cool air leakage by the condenser fans 24 and 24 as in the third embodiment of the present invention. In order to prevent this, a cushioning material is interposed.
[0015]
Further, as shown in FIG. 8, in addition to the plane substantially L-shaped intake duct 28, a plane substantially L-shaped intake duct 28 is connected as shown in FIG. The intake duct 28 is provided with a partition plate 35 made of stainless steel or the like inside by a fixing method such as welding, and is sucked from the front and rear front panel intake ports 36 and 36 by the condenser fans 24 and 24. Air (see the white arrow shown in FIG. 8) is completely divided, passed through the respective condensers 23 and 23, heat exchanged, and exhausted from the upper rear of the condensers 23 and 23 (see the black arrow shown in FIG. 8). It is supposed to let you.
Further, since the partition plate 35 is attached obliquely, the sucked air hits the partition plate 35 and smoothly flows in the direction to the left and right condensers 23, 23.
In addition, the intake duct 28 of this embodiment has fewer parts than the intake duct of the fourth embodiment, can be reduced in cost, and can be easily placed in the machine room 4 because it is an integral structure.
[0016]
In addition to the vertical refrigerator and freezer placed on the unit, the present invention is similarly applied to any machine having a pass-through door structure equipped with a refrigeration apparatus such as a table-type cooling storage and a ceiling-mounted showcase. Applicable.
[Brief description of the drawings]
FIG. 1 is a front view of a cooling storage of the present invention. FIG. 2 is a plan view of a cooling storage of the present invention. FIG. 3 is a plan view of a cooling storage of a second embodiment of the present invention. FIG. 5 is a side view of the cooling storage according to the third embodiment of the present invention. FIG. 6 is a schematic view of the main part of the cross section along line AA in FIG. 4. FIG. 7 is a cooling according to the fourth embodiment of the present invention. FIG. 8 is a plan view of a cooling storage according to a fifth embodiment of the present invention. FIG. 9 is a side sectional view of a conventional cooling storage. FIG. 10 is a plan view of a conventional cooling storage.
Cooling storage ... 1
Insulated box ... 2
Insulation ... 3
Machine room… 4
Top plate ... 5
Side panel ... 6
Front panel ... 7
Side wall ... 8
Opening ... 9
Open / close door ... 10
Top plate opening ... 11
Legs ... 12
Partition ... 13
Shelf ... 14
Packing ... 15
Handle ... 16
Refrigeration equipment ... 21
Base ... 22
Condenser ... 23
Condenser fan ... 24
Air filter ... 25
Compressor ... 26
Electrical box ... 27
Intake duct ... 28
Mounting plate ... 29
Flange ... 30
Cushion material ... 31
Inclined part ... 32
Square hole ... 33
Drain pan… 34
Partition plate ... 35
Inlet ... 36
Air intake duct body ... 37
Air filter mounting frame ... 38
Slope board ... 39
Storage room ... 51
Cooler ... 52
Cooler duct ... 53
Air inlet 54
Discharge port ... 55
Cooler fan ... 56

Claims

Openable and closable doors provided at the front and rear openings of the cooling storage wall, a pedestal provided at each of the plurality of openings on the storage top plate, a condenser, a condenser cooling fan, and a compression on the pedestal A refrigeration apparatus provided with a cooler etc. for cooling the interior of the storage unit, a suction port provided near the cooler air blower, and the cool air cooled by the cooler In a cooling storage provided with a discharge port for blowing air into the cooling storage by an apparatus and a cooler duct covered with the cooler, a plurality of condensers of a refrigeration device provided in the gantry are provided facing the opening. And the outlets of the cooler ducts provided under the gantry are provided so as to face the side walls, respectively, and the cool air discharged from the outlets flows downward along the side walls in the vicinity and circulates in the cooling storage. The cooling duct Cooling storage, characterized in that as return to the suction port of the.

A front panel is provided in at least one of the front and rear of the refrigeration apparatus, a filter is provided in an intake port provided in the front panel, and a plurality of the condensers are sucked in air for cooling the condenser from the intake ports. The cooling storage according to claim 1, further comprising a duct.

A front panel intake port provided before and after the refrigeration apparatus is provided with a filter, and the plurality of condensers are each provided with an intake duct for sucking condenser cooling air from the intake port. The cooling storage according to claim 1, further comprising a slope plate or a partition plate that allows air to flow from the intake port to the condenser.