JP2004053227A

JP2004053227A - Cooling storage

Info

Publication number: JP2004053227A
Application number: JP2002215307A
Authority: JP
Inventors: Hiroshi Niijima; 新島　洋; Takashi Sekiguchi; 関口　隆; Daisei Kawasaki; 川崎　大生; Hideya Ikeda; 池田　秀也
Original assignee: Sanyo Electric Co Ltd
Current assignee: Sanyo Electric Co Ltd
Priority date: 2002-05-31
Filing date: 2002-07-24
Publication date: 2004-02-19
Anticipated expiration: 2022-07-24
Also published as: KR100490820B1; KR20030094028A; JP4093810B2

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator forming two temperature zones in a storage compartment in one refrigerator while simplifying a structure of a duct. SOLUTION: This cooling storage R having a storage compartment 2 defined in a heat-insulating case 1, and cooling the inside of the storage compartment 2 by melting latent heat of a cold storing agent 18, comprises a cold storage compartment 17 accommodating the cold storing agent 18, a partitioning plate 5 for dividing the storage compartment 2 into a plurality of compartments, a discharge duct 9 for supplying the cold air cooled by the cold storing agent 18 to the divided compartments 2A, 2B, a communication port formed on the partitioning plate 5 for communicating the compartments 2A, 2B, a suction port for communicating a lower storage compartment 2B and a cold storage compartment 17, and a control device and temperature sensors 22A, 22B for independently adjusting the cold air supply amount to each compartment on the basis of a temperature of each compartment. COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、蓄冷剤を用いて貯蔵室を低温に保つ冷却貯蔵庫に関する。
【０００２】
【従来の技術】
従来よりこの種冷却貯蔵庫は、例えば低温物品輸送システムにおいて用いられる。この物流システムにおいて、冷却貯蔵庫の輸送中は交流電源が使用できないため、冷却貯蔵庫にバッテリを搭載し、冷却貯蔵庫の断熱箱体内には蓄冷剤が配設され、この蓄冷剤の融解潜熱により冷却された冷気を前記バッテリから給電される直流（ＤＣ）送風機によって貯蔵室に循環し、冷却している。
【０００３】
また、貯蔵室内には、貯蔵室内の温度を検出する温度検出手段が設けられており、この温度検出手段の出力により貯蔵室内を所定の温度、即ち、冷凍または冷蔵の温度に冷却している。
【０００４】
しかしながら、上述の如く冷却貯蔵庫内は一つの温度帯しか設けられていないため、物品が少量であっても冷凍及び冷蔵の両者の物品がある場合には、冷凍用及び冷蔵用の二台の冷却貯蔵庫を配送手段に搭載しなければならなかった。
【０００５】
そこで、冷凍及び冷蔵の両者の物品を一台の冷却貯蔵庫にて収容するために、例えば特開２００１−２７２１６３号公報に示す如く、冷却貯蔵庫の貯蔵室内に仕切板を設け冷凍室及び冷蔵室を形成し、冷凍室内を前記蓄冷剤の融解潜熱によって冷却する冷却貯蔵庫が開発されてきている。
【０００６】
【発明が解決しようとする課題】
しかしながら、従来の二つの温度帯を有する冷却貯蔵庫では、各室から冷気をそれぞれ吸い込むためのダクトを構成していたため、構造が複雑化してコストの高騰を引き起こすと共に、特に物流機器の如く厳しい使用環境では破損・故障の原因となる問題もあった。
【０００７】
そこで、本発明は係る従来の課題を解決するために成されたものであり、一台の冷却貯蔵庫にて、貯蔵室内に二温度帯を形成しながらダクト構造を簡素化した冷却貯蔵庫を提供することを目的とするものである。
【０００８】
【課題を解決するための手段】
本発明の冷却貯蔵庫では、断熱箱体内に貯蔵室を構成し、蓄冷剤の融解潜熱によって貯蔵室内を冷却して成るものであって、蓄冷剤を収納する蓄冷室と、貯蔵室内を複数室に区画する仕切部材と、区画された各室に蓄冷剤にて冷却された冷気を供給するための吐出ダクトと、仕切部材に形成され、当該仕切部材にて区画された各室を連通する連通口と、区画された各室のうち蓄冷室側に位置する室と当該蓄冷室とを連通する吸込口と、各室の温度に基づいて各室への冷気供給量を独立して調節する温度調節手段とを備えているので、仕切部材で区画される各室を異なる温度に独立して制御し、各室内に異なる温度帯にて冷却を必要とする収納物をそれぞれ収納することができるようになる。また、収納物の荷崩れも起こりにくくなる。
【０００９】
特に、仕切部材で区画される各室のうち蓄冷室側ではない室の冷気は、仕切部材の連通口から蓄冷室側の室に流入し、当該室の冷気と共に吸込口から蓄冷室に吸い込まれることになるので、冷気を循環するためのダクト構造が簡素化され、コストの低減と耐久性の向上を図ることができるようになる。
【００１０】
請求項２の発明では、上記に加えて連通口に冷気流通量調節手段を設けているので、例えば蓄冷室側でない室をより温度の高い冷蔵室とするなどの際に、外気温が低い状況において連通口の冷気流通量調節手段により冷気の流通量を減少させることで、当該冷蔵室の過冷却を効果的に防止することが可能となる。一方、両室を同温度で使用する際には連通口の冷気流通量を増大させることで、所謂プルダウン特性が向上する。
【００１１】
請求項３の発明では、上記各発明に加えて吐出ダクトは、蓄冷剤にて冷却された冷気を蓄冷室側に位置する室に供給した後、他の室に供給する構造とされているので、上述の如く蓄冷室側でない室をより温度の高い冷蔵室とし、蓄冷室側の室をより温度の低い冷凍室にする際などに、冷蔵室への冷気温度を上昇させて、当該冷蔵室内の温度制御性を改善することができるようになる。
【００１２】
請求項４の発明では、上記に加えて吐出ダクトの各室に対応する位置にそれぞれ形成され、各室に冷気をそれぞれ供給するための冷気吐出口と、仕切部材に形成され、蓄冷室側に位置する室に供給された冷気を、他の室側の吐出ダクトに案内するための案内ダクトとを備え、この案内ダクトの冷気流入口を、蓄冷室側に位置する室の冷気吐出口から離間した位置に形成したので、蓄冷室側の室に供給された冷気が直接他の室に達することが無くなる。これにより、当該他の室に温度保障ヒータなどを設けること無く、当該他の室が過冷却状態に陥ることを防止することができるようになる。
【００１３】
請求項５の発明では、上記に加えて案内ダクトの冷気流入口に、蓄冷室側に位置する室の冷気吐出口から離間する方向に突出する風向板を設けたので、蓄冷室側の室に供給された冷気が直接他の室に至る不都合を一層良好に解消することができるようになる。
【００１４】
請求項６の発明では、請求項４又は請求項５の発明に加えて案内ダクトの冷気流入口にバーリング加工を施したので、冷気流入口から吸い込まれた冷気の流れを整え、前記他の室への冷気供給を円滑に行うことができるようになると共に、冷気流入口周辺の強度の向上も図ることが可能となる。
【００１５】
請求項７の発明では、上記各発明に加えて連通口は、仕切部材に段落して形成されているので、仕切部材上に載置された物品により連通口が塞がれてしまう不都合を回避し、他の室内に多量の物品が収納された際にも冷気循環を確保することができるようになる。
【００１６】
請求項８の発明では、上記各発明に加えて吐出ダクトの各室上部に対応する位置にそれぞれ形成され、各室に冷気をそれぞれ供給するための冷気吐出口を備え、各冷気吐出口を斜め下方に指向させたので、同様に各室に収納された物品により各冷気吐出口が塞がれてしまう不都合を回避し、各室内に多量の物品が収納された際にも冷気循環を確保することができるようになる。
【００１７】
請求項９の発明では、上記各発明に加えて吸込口には、貯蔵室側に張り出す吸込口ガードを設けたので、同様に蓄冷室側の室に収納された物品により吸込口が塞がれてしまう不都合を回避し、当該室内に多量の物品が収納された際にも冷気循環を確保することができるようになる。
【００１８】
請求項１０の発明では、上記各発明に加えて仕切部材は着脱可能とされ、取り外した状態で貯蔵室の壁面に沿って収納可能とされているので、使用目的に応じて仕切部材を取り外すことにより、目的の温度帯の室の収納空間を拡張することができるようになる。また、取り外した際の保管場所を確保する必要も無くなるので、部品管理も容易となる。
【００１９】
請求項１１の発明では、上記に加えて仕切部材が着脱可能に載置される取付具を備え、この取付具の上面には断熱材が設けられているので、仕切部材を安定的に保持することができるようになると共に、仕切部材により仕切られた各室間の断熱も効果的に行えるようになる。
【００２０】
請求項１２の発明では、上記各発明に加えて貯蔵室の開口を開閉自在に閉塞する観音開き式の一対の扉を備え、両扉を閉じたときに各扉の側面が相互に当接するようにしたので、比較的狭い設置場所でも扉の開閉が可能となると共に、両扉相互の当接面積を大きくして冷気漏洩を防止し、簡単な構成で断熱性能の改善を図ることができるようになる。
【００２１】
請求項１３の発明では、上記に加えて両扉の側面は段付き形状とされているので、両扉の当接面積を拡大させて、断熱性能を一層の改善を図ることができるようになる。特に、この場合には扉の加工も比較的容易であるので、生産性の悪化も防止される。
【００２２】
請求項１４の発明では、請求項１２の発明に加えて両扉の側面は傾斜しているので、同様に両扉の当接面積を拡大させて、断熱性能を一層の改善を図ることができるようになる。特に、この場合には外側で重合する側の扉を閉じるちからが両扉を密着させる方向に作用するので、断熱性能はより一層向上する。
【００２３】
請求項１５の発明では、請求項１２、請求項１３又は請求項１４の発明に加えて両扉の側面に、各扉を閉じたときに相互に当接する断熱材を設けたので、両扉間の断熱性能がより一層向上するものである。
【００２４】
【発明の実施の形態】
以下、本発明の冷却貯蔵庫Ｒについて図１を参照して説明する。図１は本発明の冷却貯蔵庫Ｒの斜視図、図２は同縦断側面図、図３は同縦断正面図をそれぞれを示している。
【００２５】
実施例の冷却貯蔵庫Ｒは、配送ベースにおいて交流電源が接続された状態では、当該交流電源の供給を受けて圧縮機を運転し、蓄冷剤を凍結させる蓄冷運転を行うと共に、食品などの物品（収納物）を収納後、交流電源が切断された状態でトラックなどの配送車の荷台に積載され、当該配送中は蓄冷剤の融解潜熱によって冷却された冷気を貯蔵室に循環させて冷却する保冷運転を行う物流用冷却貯蔵庫である。
【００２６】
この冷却貯蔵庫Ｒは前面に開口する断熱箱体１から成り、この断熱箱体１内には物品を収納するための貯蔵室２が形成されると共に、この貯蔵室２の前面には開閉を行うための観音開き式の左右一対の扉１５Ａ、１５Ｂが設けられており、断熱箱体１下方には機械室３が構成されている。また、冷却貯蔵庫Ｒの下面四隅には、移動用の車輪４・・・が取り付けられている。
【００２７】
尚、３１は機械室３の前面を覆う開閉可能なパネルであり、このパネル３１には通風用のスリット３２が形成されている。また、このパネル３１からは図示しない制御装置に接続された温度調節摘み３３Ａ、３３Ｂが前方に臨んで設けられている。
【００２８】
また、貯蔵室２内には、貯蔵室２内を上下に区画形成するための断熱パネルによって構成された仕切部材５が着脱自在に取り付けられる。これにより、仕切部材５の上方には、上貯蔵室２Ａ（他の室）が形成されると共に、仕切部材５の下方には下貯蔵室２Ｂ（蓄冷室側の室）が形成される。また、上貯蔵室２Ａ及び下貯蔵室２Ｂのそれぞれには各室２Ａ、２Ｂの温度をそれぞれ検出するための温度センサ２２Ａ、２２Ｂが設けられており、これら温度センサ２２Ａ、２２Ｂは前述した制御装置に接続されている。そして、この仕切部材５は貯蔵室２の内壁に取り付けられた断面略Ｌ字状の取付具６の上面に載置することにより保持される。
【００２９】
また、貯蔵室２の向かって左側面には、断熱箱体１との間に間隔を存してダクト板７が取り付けられており、このダクト板７と断熱箱体１間には吐出ダクト９が構成される。前記ダクト板７には、仕切部材５の下側に対応して複数の中間吸込口１１がスリット状に並設されており、この中間吸込口１１の下縁に対応する吐出ダクト９内には閉塞板８が設けられて吐出ダクト９内を上下に仕切っている。
【００３０】
そして、これら上下に仕切られた吐出ダクト９が各室２Ａ、２Ｂの側方にそれぞれ対応すると共に、上下に仕切られた吐出ダクト９のそれぞれの部分の上部に対応して冷気吐出口１０Ａ、１０Ｂが形成され、各室２Ａ、２Ｂ内上部に開口している。また、各冷気吐出口１０Ａ、１０Ｂには送風機１２Ａ、１２Ｂがそれぞれ設けられている。各送風機１２Ａ、１２Ｂの吸込側は上述の如く上下に仕切られた吐出ダクト９内にそれぞれ連通しており、吐出側は前記上貯蔵室２Ａ及び下貯蔵室２Ｂにそれぞれ連通している。そして、各送風機１２Ａ、１２Ｂはそれぞれ前記機械室３内に設置されたバッテリ２５によって運転されるものとする。
【００３１】
前記仕切部材５の向かって右側には上下貯蔵室２Ａ、２Ｂを相互に連通するスリット状の複数の連通口１３が形成されている。この連通口１３は図４に示す如く段落して形成されており、この段落箇所には前後にスライド可能な冷気流通量調節手段としてのスライド板１４が取り付けられている。
【００３２】
このスライド板１４にも複数のスリット状透孔１４Ａが形成されており、スライド板１４をスライドさせて各透孔１４Ａを各連通口１３に合致させた状態では、連通口１３が全開となり、透孔１４Ａと連通口１３を完全にずらした状態では連通口１３はスライド板１４によって全閉とされる。そして、スライド板１４の位置は連通口１３の係る全開と全閉の間で任意に調整可能とされている。
【００３３】
また、連通口１３が段落形成されていることで、仕切部材５上に多量の物品が載置された場合にも、当該連通口１３が塞がれる不都合が回避される。
【００３４】
また、貯蔵室２（下貯蔵室２Ｂ）の底面前部は階段状に段落ちされており、当該段落部分には断熱箱体１の底面と所定間隔を存して断熱仕切板１６が架設され、これによって、断熱箱体１の前下部には貯蔵室２と区画された蓄冷室１７が構成されている。そして、前記下貯蔵室２Ｂは仕切部材５の蓄冷室１７側に位置することになる。この蓄冷室１７内には平板状の蓄冷剤１８が左右にわたってそれぞれ間隔を存して複数設けられている。また、これらの蓄冷剤１８内には機械室３内に設置された圧縮機１９、凝縮器２３、凝縮器用送風機２４と共に冷却装置を構成する冷却器２０によって冷却される。
【００３５】
更に、断熱仕切板１６の向かって右側には吸込口２１が形成されている。この吸込口２１は上側の貯蔵室２（下貯蔵室２Ｂ）と下側の蓄冷室１７の右側とを連通している。また、前記吐出ダクト９は蓄冷室１７の向かって左側に連通している。
【００３６】
一方、図５は前記扉１５Ａ、１５Ｂの突き合わせ部分の拡大平断面図を示している。扉１５Ａ、１５Ｂは内部に断熱材が充填された断熱扉であり、その内面の周囲には断熱箱体１の開口周囲に密着するガスケット３６がそれぞれ取り付けられている。また、各扉１５Ａ、１５Ｂが突き合わされるそれぞれの側面には断熱材３７が貼付されている。この断熱材３７は所定の弾性を有しており、両扉１５Ａ、１５Ｂを閉じた状態で相互に当接することで、実質的に扉１５Ａ、１５Ｂをそれらの側面同士で当接させる。
【００３７】
扉１５Ａ、１５Ｂは観音開き式であるので、一枚扉式のものに比べて、扉当たりの寸法は小さくなり、配送車の荷台などの狭い空間でも容易に開閉可能となる。また、扉１５Ａ、１５Ｂの突き合わせ部分では各扉１５Ａ、１５Ｂの側面が当接し、且つ、断熱材３７、３７も介在しているので、両扉１５Ａ、１５Ｂの突き合わせ部分からの冷気漏洩は効果的に防止させ、断熱性能が向上する。
【００３８】
他方、前記制御装置には、上貯蔵室２Ａの温度を検出する前記温度センサ２２Ａと、下貯蔵室２Ｂの温度を検出する前記温度センサ２２Ｂと、前記温度調節摘み３３Ａ、３３Ｂが接続されており、これらの出力に基づいて送風機１２Ａ及び１２Ｂが制御される。温度調節摘み３３Ａ及び３３Ｂは上貯蔵室２Ａ及び下貯蔵室２Ｂ内の温度を設定するものであり、前記温度センサ２２Ａ、２２Ｂによる制御にそれぞれ対応している。
【００３９】
以上の構成で、冷却貯蔵庫Ｒは、配送ベースにおいて交流電源が接続された状態で、交流電源の供給を受けて前記圧縮機１９を運転し、蓄冷剤１８を凍結させる。そして、冷却貯蔵庫Ｒ内に食品などの物品を収納後、交流電源が切断された状態でトラックなどの配送車の荷台に積載され、当該配送中は蓄冷剤１８の融解潜熱によって冷却された冷気を貯蔵室２に循環させて冷却を行う。
【００４０】
このとき、予め使用者が貯蔵室２内を例えば冷凍及び冷蔵とする場合には、前記仕切部材５を取付具６に設置し、前記温度調節摘み３３Ａ、３３Ｂによって上貯蔵室２Ａを冷蔵の温度帯（冷蔵室として使用）に設定し、下貯蔵室２Ｂを冷凍の温度帯（冷凍室として使用）に設定する。これにより、前記制御装置によって送風機１２Ａ及び１２Ｂの運転が制御される。
【００４１】
次に、貯蔵室２内の冷気の流れを説明する。前記制御装置により上貯蔵室２Ａ及び下貯蔵室２Ｂの送風機１２Ａ及び１２Ｂがそれぞれ運転されると、蓄冷室１７内にて予め凍結された蓄冷剤１８の融解潜熱によって冷却された冷気は、送風機１２Ｂによって閉塞板８より下方の吐出ダクト９内を上昇した後、下貯蔵室２Ｂ内に吐出される。
【００４２】
また、下貯蔵室２Ｂ内の冷気は、送風機１２Ａによって中間吸込口１１・・から吸引され、閉塞板８より上方の吐出ダクト９内を上昇した後、上貯蔵室２Ａ内に吐出される。そして、上貯蔵室２Ａ内を循環した冷気は仕切部材５の連通口１３（スライド板１４により開放されているものとする）より下貯蔵室２Ｂ内に戻る。下貯蔵室２Ｂ内に吐出された冷気は、当該下貯蔵室２Ｂ内を循環した後、前記連通口１３から流入した冷気と共に、断熱仕切板１６の吸込口２１から蓄冷室１７内に帰還する。蓄冷室１７内に帰還した冷気は、蓄冷剤１８間を通過して熱交換し、冷却された後、前述と同様に吐出ダクト９に吸い込まれる循環を繰り返す。
【００４３】
このとき、上貯蔵室２Ａ及び下貯蔵室２Ｂ内の温度は温度センサ２２Ａ及び２２Ｂによって検出され、制御装置は各室の温度と前記温度調節摘み３３Ａ、３３Ｂで設定された温度によって送風機１２Ａ、１２Ｂの運転を制御する。これにより、上貯蔵室２Ａ内は冷蔵の温度帯である冷蔵室に、下貯蔵室２Ｂ内は冷凍の温度帯である冷凍室にそれぞれ制御されることになる。
【００４４】
特に、このとき冷蔵室となる上貯蔵室２Ａ内には下貯蔵室２Ｂ内に吐出された後の冷気が吐出ダクト９を介して供給されるので、比較的温度は高めとなる。これにより、上貯蔵室２Ａの温度制御性は向上する。
【００４５】
ここで、特に冬場などの低温季には、送風機１２Ａを停止させても上貯蔵室２Ａ内が冷蔵温度帯より低下してしまう場合がある。係る場合にはスライド板１４をスライドさせて連通口１３・・を全閉とすれば、上下の室の冷気流通が阻止できるので、上貯蔵室２Ａの過冷却を防止若しくは緩和できるようになる。
【００４６】
また、上述の例では上貯蔵室２Ａを冷蔵室、下貯蔵室２Ｂを冷凍室として使用する例で説明したが、両室２Ａ、２Ｂを冷蔵若しくは冷凍の同温度帯で制御し、使用することも可能である。その場合には、両温度調節摘み３３Ａ、３３Ｂを当該同一の温度帯に設定することになる。また、係る場合はスライド板１４により連通口１３・・を全開状態とすれば、仕切部材５上下の冷気流通が良好となるので、上貯蔵室２Ａのプルダウン特性や温度制御性が改善される。
【００４７】
ここで、貯蔵室２内を一つの温度帯として貯蔵室２内を拡張使用したい場合には、前記仕切部材５を取り外せば良い。この場合には両温度調節摘み３３Ａ、３３Ｂを同一の温度帯に設定する。尚、仕切部材５の有無を検知するスイッチを設ければ、制御装置によって自動的に何れかの温度センサ２２Ａ（２２Ｂ）のみによる制御に切り換え可能となる。
【００４８】
ここで、仕切部材５の寸法は貯蔵室２の底面及び背面よりも小さい寸法とされており、取り外した状態では図６の如く貯蔵室２の背面や底面（断熱仕切板１６上）に沿って収納可能となる。これにより、取り外した際の保管場所の危惧の無くなるので、部品管理も容易となる。
【００４９】
次に、図１１乃至図１３は本発明の他の実施例の冷却貯蔵庫Ｒを示している。尚、各図において、図１乃至図６と同一符号は同一若しくは同様の機能を奏するものとする。また、機械室３内には同様に圧縮機１９等が設置されているものとする。
【００５０】
この場合、取付具６の上面には断熱材４１が取り付けられ、仕切部材５はこの断熱材４１を介して取付具６に着脱可能に載置保持される。係る断熱材４１によって各室２Ａ、２Ｂ間の断熱性能は一層良好となる。
【００５１】
また、仕切部材５の下面には左右に渡って案内ダクト４２が凹陥形成されており、仕切部材５が取付具６に載置された状態で、この案内ダクト４２の向かって左端は前記ダクト板７の中間吸込口１１に対応して連通する。更に、案内ダクト４２の向かって右端には冷気流入口４３が複数形成されており、各冷気流入口４３の周囲には案内ダクト４２側に突出するバーリング加工が施されている。
【００５２】
また、案内ダクト４２の冷気流入口４３は連通口１３の向かって左方であって、冷気吐出口１０Ｂから離間した位置に形成されている。更に、この冷気流入口４３の両側には冷気吐出口１０Ｂから離間する方向、即ち、斜め下右方に向かって突出する風向板４４、４４が形成されている（図１３では示さず）。
【００５３】
また、この場合各室２Ａ、２Ｂの左側上部に位置する各冷気吐出口１０Ａ、１０Ｂ及び各送風機１２Ａ、１２Ｂは斜め下方に指向されている。これにより、各室２Ａ、２Ｂ内に多量の物品が収納された際にも冷気吐出口１０Ａ、１０Ｂが塞がれてしまう不都合を回避できる。
【００５４】
また、連通口１３の下方に対応する位置の下貯蔵室２Ｂ右側面にはダクト板４６により下降ダクト４７が形成されており、この下降ダクト４７の上端は連通口１３下側に対応して連通し、下端は斜め右下方に指向した冷気流出口４８にて下貯蔵室２Ｂ内に開口している。冷気流出口４８がこのように斜め下方に開口することで物品によって塞がれる不都合を回避している。
【００５５】
この冷気流出口４８は吸込口２１の上方に対応している。また、この吸込口２１には貯蔵室２側に張り出した吸込口ガード４９が取り付けられており、これにより、断熱仕切板１６上に多量の物品が載置された場合にも吸込口２１が塞がれてしまう不都合を回避できるようにしている。
【００５６】
以上の構成で、この場合の貯蔵室２内の冷気の流れを説明する。前記制御装置により上貯蔵室２Ａ及び下貯蔵室２Ｂの送風機１２Ａ及び１２Ｂがそれぞれ運転されると、蓄冷室１７内にて予め凍結された蓄冷剤１８の融解潜熱によって冷却された冷気は、送風機１２Ｂによって閉塞板８より下方の吐出ダクト９内を上昇した後、下貯蔵室２Ｂ内に向けて斜め下方に吐出される。
【００５７】
また、下貯蔵室２Ｂ内に吐出された冷気は内部を循環する。そして、下貯蔵室２Ｂ内右上部に至った冷気は、送風機１２Ａによって冷気流入口４３から仕切部材５の案内ダクト４２内に吸引され、そこを通過して中間吸込口１１に至り、閉塞板８より上方の吐出ダクト９内を上昇した後、上貯蔵室２Ａ内に向けて斜め下方に吐出される。
【００５８】
このように冷気流入口４３が冷気吐出口１０Ｂから離間しているため、冷気吐出口１０Ｂから下貯蔵室２Ｂ内に吐出された冷気が直接上貯蔵室２Ａに至る不都合を解消できる。特に、風向板４４、４４が冷気吐出口１０Ｂから離間する方向に突出しているので、冷気流入口４３へは下貯蔵室２Ｂ内を或る程度循環させた後の冷気を流入させることが可能となる。また、冷気流入口４３はバーリング加工されているので、案内ダクト４２に流入する冷気の流れも整えられ、上貯蔵室２Ａへの冷気供給は円滑に行われるようになる。
【００５９】
そして、上貯蔵室２Ａ内を循環した冷気は仕切部材５の連通口１３（スライド板１４により開放されているものとする）より下降ダクト４７内に入り、冷気流出口４８から下貯蔵室２Ｂ内に戻る。一方、下貯蔵室２Ｂ内に吐出された冷気は、当該下貯蔵室２Ｂ内を循環した後、前記冷気流出口４８から流入した冷気と共に、断熱仕切板１６の吸込口ガード４９を経て吸込口２１から蓄冷室１７内に帰還する。蓄冷室１７内に帰還した冷気は、蓄冷剤１８間を通過して熱交換し、冷却された後、前述と同様に吐出ダクト９に吸い込まれる循環を繰り返す。
【００６０】
尚、温度制御方式は前述したものと同様である。また、連通口１３の段落形状も同様である。そして、仕切部材５を取り外し、貯蔵室２の底面の断熱仕切板１６上に載置された場合には、この連通口１３の段落形状が吸込口ガード４９に合致し、連通口１３が吸込口２１に対応することになる。
【００６１】
このように本発明の冷却貯蔵庫Ｒでは、断熱箱体１内に貯蔵室２を構成し、蓄冷剤１８の融解潜熱によって貯蔵室２内を冷却して成るものであって、蓄冷剤１８を収納する蓄冷室１７と、貯蔵室２内を複数室２Ａ、２Ｂに区画する仕切部材５と、区画された各室２Ａ、２Ｂに蓄冷剤１８にて冷却された冷気を供給するための吐出ダクト９と、仕切部材５に形成され、当該仕切部材５にて区画された各室２Ａ、２Ｂを連通する連通口１３・・と、区画された下貯蔵室２Ｂと蓄冷室１７とを連通する吸込口２１と、各室２Ａ、２Ｂの温度に基づいて各室２Ａ、２Ｂへの冷気供給量を独立して調節する制御装置及び送風機１２Ａ、１２Ｂとを備えているので、仕切部材５で区画される各室２Ａ、２Ｂを異なる温度に独立して制御し、各室２Ａ、２Ｂ内に異なる温度帯にて冷却を必要とする物品をそれぞれ収納することができるようになる。また、仕切部材５により貯蔵室２内を上下に分けて使用できることで、収納物品の荷崩れも起こりにくくなる。
【００６２】
特に、仕切部材５で区画される上貯蔵室２Ａの冷気は、仕切部材５の連通口１３・・から下貯蔵室２Ｂに流入し、当該下貯蔵室２Ｂの冷気と共に吸込口２１から蓄冷室１７に吸い込まれることになるので、冷気を循環するための帰還用のダクトを形成する必要も無くなり、ダクト構造が簡素化され、コストの低減と耐久性の向上を図ることができるようになる。
【００６３】
また、連通口１３にはスライド板１４を設けているので、前述の如く上貯蔵室２Ａを冷蔵室とするなどの際に、外気温が低い状況において連通口１３の冷気の流通量を減少させることで、当該冷蔵室の過冷却を効果的に防止することが可能となる。一方、両室２Ａ、２Ｂを同温度で使用する際には連通口１３の冷気流通量を増大させることで、所謂プルダウン特性が向上する。
【００６４】
また、図１１乃至図１２の如く仕切部材５に案内ダクト４２を形成し、案内ダクト４２の冷気流入口４３を、下貯蔵室２Ｂの冷気吐出口１０Ｂから離間した位置に形成すれば、下貯蔵室２Ｂに供給された冷気が直接上貯蔵室２Ａに達することが無くなる。これにより、当該上貯蔵室２Ａに温度保障ヒータなどを設けること無く、当該上貯蔵室２Ａが過冷却状態に陥ることを防止することができるようになる。
【００６５】
また、案内ダクト４２の冷気流入口４３に、下貯蔵室２Ｂの冷気吐出口１０Ｂから離間する方向に突出する風向板４４を設ければ、下貯蔵室２Ｂに供給された冷気が直接上貯蔵室２Ａに至る不都合を一層良好に解消することができるようになる。更に、案内ダクト４２の冷気流入口４３にバーリング加工を施せば、冷気流入口４３から吸い込まれた冷気の流れを整え、上貯蔵室２Ａへの冷気供給を円滑に行うことができるようになると共に、冷気流入口４３周辺の強度の向上も図ることが可能となる。
【００６６】
ここで、上記実施例では蓄冷室１７からの冷気を吐出ダクト９にて先ず下貯蔵室２Ｂに吐出し、この下貯蔵室２Ｂの冷気を上貯蔵室２Ａに吐出するようにしたが、請求項１又は請求項２の発明ではそれに限らず、図７の如く一連の吐出ダクト９により両室２Ａ、２Ｂと蓄冷室１７とを連通させてもよい（閉塞板８無し）。また、図８の如くダクト板７Ａにより蓄冷室１７と各室２Ａ、２Ｂとを独立して連通する吐出ダクト９Ａ、９Ｂを形成してもよい。
【００６７】
但し、前記実施例のように吐出ダクト９により、蓄冷剤１８にて冷却された冷気を下貯蔵室２Ｂに供給した後、上貯蔵室２Ａに供給する構造とすれば、上貯蔵室２Ａをより温度の高い冷蔵室とし、下貯蔵室２Ｂをより温度の低い冷凍室にする際などに、冷蔵室への冷気温度を上昇させて、当該冷蔵室内の温度制御性を改善することができるようになる。
【００６８】
尚、図９の如く両扉１５Ａ、１５Ｂの側面を段付き形状とすれば、両扉１５Ａ、１５Ｂの当接面積を拡大させて、断熱性能を一層の改善を図ることができるようになる。特に、この場合には扉１５Ａ、１５Ｂの加工も比較的容易であるので、生産性の悪化も防止される。
【００６９】
また、図１０の如く両扉１５Ａ、１５Ｂの側面を傾斜させても、同様に両扉１５Ａ、１５Ｂの当接面積を拡大させて、断熱性能を一層の改善を図ることができるようになる。特に、この場合には外側で重合する扉１５Ｂを閉じるちからが両扉１５Ａ、１５Ｂを密着させる方向に作用するので、断熱性能はより一層向上する。
【００７０】
更に、上記実施例では物流にて使用される車輪付きの冷却貯蔵庫にて本発明を説明したが、厨房にて使用される場合にも本発明は有効である。また、車輪を備えない蓄冷剤使用の冷却貯蔵庫にも本発明は適用可能である。
【００７１】
【発明の効果】
以上詳述した如く本発明によれば、断熱箱体内に貯蔵室を構成し、蓄冷剤の融解潜熱によって貯蔵室内を冷却して成るものであって、蓄冷剤を収納する蓄冷室と、貯蔵室内を複数室に区画する仕切部材と、区画された各室に蓄冷剤にて冷却された冷気を供給するための吐出ダクトと、仕切部材に形成され、当該仕切部材にて区画された各室を連通する連通口と、区画された各室のうち蓄冷室側に位置する室と当該蓄冷室とを連通する吸込口と、各室の温度に基づいて各室への冷気供給量を独立して調節する温度調節手段とを備えているので、仕切部材で区画される各室を異なる温度に独立して制御し、各室内に異なる温度帯にて冷却を必要とする収納物をそれぞれ収納することができるようになる。また、収納物の荷崩れも起こりにくくなる。
【００７２】
特に、仕切部材で区画される各室のうち蓄冷室側ではない室の冷気は、仕切部材の連通口から蓄冷室側の室に流入し、当該室の冷気と共に吸込口から蓄冷室に吸い込まれることになるので、冷気を循環するためのダクト構造が簡素化され、コストの低減と耐久性の向上を図ることができるようになる。
【００７３】
請求項２の発明によれば、上記に加えて連通口に冷気流通量調節手段を設けているので、例えば蓄冷室側でない室をより温度の高い冷蔵室とするなどの際に、外気温が低い状況において連通口の冷気流通量調節手段により冷気の流通量を減少させることで、当該冷蔵室の過冷却を効果的に防止することが可能となる。一方、両室を同温度で使用する際には連通口の冷気流通量を増大させることで、所謂プルダウン特性が向上する。
【００７４】
請求項３の発明によれば、上記各発明に加えて吐出ダクトは、蓄冷剤にて冷却された冷気を蓄冷室側に位置する室に供給した後、他の室に供給する構造とされているので、上述の如く蓄冷室側でない室をより温度の高い冷蔵室とし、蓄冷室側の室をより温度の低い冷凍室にする際などに、冷蔵室への冷気温度を上昇させて、当該冷蔵室内の温度制御性を改善することができるようになる。
【００７５】
請求項４の発明によれば、上記に加えて吐出ダクトの各室に対応する位置にそれぞれ形成され、各室に冷気をそれぞれ供給するための冷気吐出口と、仕切部材に形成され、蓄冷室側に位置する室に供給された冷気を、他の室側の吐出ダクトに案内するための案内ダクトとを備え、この案内ダクトの冷気流入口を、蓄冷室側に位置する室の冷気吐出口から離間した位置に形成したので、蓄冷室側の室に供給された冷気が直接他の室に達することが無くなる。これにより、当該他の室に温度保障ヒータなどを設けること無く、当該他の室が過冷却状態に陥ることを防止することができるようになる。
【００７６】
請求項５の発明によれば、上記に加えて案内ダクトの冷気流入口に、蓄冷室側に位置する室の冷気吐出口から離間する方向に突出する風向板を設けたので、蓄冷室側の室に供給された冷気が直接他の室に至る不都合を一層良好に解消することができるようになる。
【００７７】
請求項６の発明によれば、請求項４又は請求項５の発明に加えて案内ダクトの冷気流入口にバーリング加工を施したので、冷気流入口から吸い込まれた冷気の流れを整え、前記他の室への冷気供給を円滑に行うことができるようになると共に、冷気流入口周辺の強度の向上も図ることが可能となる。
【００７８】
請求項７の発明によれば、上記各発明に加えて連通口は、仕切部材に段落して形成されているので、仕切部材上に載置された物品により連通口が塞がれてしまう不都合を回避し、他の室内に多量の物品が収納された際にも冷気循環を確保することができるようになる。
【００７９】
請求項８の発明によれば、上記各発明に加えて吐出ダクトの各室上部に対応する位置にそれぞれ形成され、各室に冷気をそれぞれ供給するための冷気吐出口を備え、各冷気吐出口を斜め下方に指向させたので、同様に各室に収納された物品により各冷気吐出口が塞がれてしまう不都合を回避し、各室内に多量の物品が収納された際にも冷気循環を確保することができるようになる。
【００８０】
請求項９の発明によれば、上記各発明に加えて吸込口には、貯蔵室側に張り出す吸込口ガードを設けたので、同様に蓄冷室側の室に収納された物品により吸込口が塞がれてしまう不都合を回避し、当該室内に多量の物品が収納された際にも冷気循環を確保することができるようになる。
【００８１】
請求項１０の発明によれば、上記各発明に加えて仕切部材は着脱可能とされ、取り外した状態で貯蔵室の壁面に沿って収納可能とされているので、使用目的に応じて仕切部材を取り外すことにより、目的の温度帯の室の収納空間を拡張することができるようになる。また、取り外した際の保管場所を確保する必要も無くなるので、部品管理も容易となる。
【００８２】
請求項１１の発明によれば、上記に加えて仕切部材が着脱可能に載置される取付具を備え、この取付具の上面には断熱材が設けられているので、仕切部材を安定的に保持することができるようになると共に、仕切部材により仕切られた各室間の断熱も効果的に行えるようになる。
【００８３】
請求項１２の発明によれば、上記各発明に加えて貯蔵室の開口を開閉自在に閉塞する観音開き式の一対の扉を備え、両扉を閉じたときに各扉の側面が相互に当接するようにしたので、比較的狭い設置場所でも扉の開閉が可能となると共に、両扉相互の当接面積を大きくして冷気漏洩を防止し、簡単な構成で断熱性能の改善を図ることができるようになる。
【００８４】
請求項１３の発明によれば、上記に加えて両扉の側面は段付き形状とされているので、両扉の当接面積を拡大させて、断熱性能を一層の改善を図ることができるようになる。特に、この場合には扉の加工も比較的容易であるので、生産性の悪化も防止される。
【００８５】
請求項１４の発明によれば、請求項１２の発明に加えて両扉の側面は傾斜しているので、同様に両扉の当接面積を拡大させて、断熱性能を一層の改善を図ることができるようになる。特に、この場合には外側で重合する側の扉を閉じるちからが両扉を密着させる方向に作用するので、断熱性能はより一層向上する。
【００８６】
請求項１５の発明によれば、請求項１２、請求項１３又は請求項１４の発明に加えて両扉の側面に、各扉を閉じたときに相互に当接する断熱材を設けたので、両扉間の断熱性能がより一層向上するものである。
【図面の簡単な説明】
【図１】本発明の冷却貯蔵庫の斜視図である。
【図２】図１の冷却貯蔵庫の縦断側面図である。
【図３】図１の冷却貯蔵庫の縦断正面図である。
【図４】図１の冷却貯蔵庫の仕切部材の斜視図である。
【図５】図１の冷却貯蔵庫の扉の突き合わせ部分の拡大平断面図である。
【図６】図１の冷却貯蔵庫の仕切部材を取り外した状態の縦断側面図である。
【図７】本発明の冷却貯蔵庫のダクト構造の他の実施例を示す縦断正面図である。
【図８】本発明の冷却貯蔵庫のダクト構造のもう一つの他の実施例を示す縦断側面図である。
【図９】本発明の冷却貯蔵庫の扉突き合わせ部分の構造の他の実施例を示す拡大平断面図である。
【図１０】本発明の冷却貯蔵庫の扉突き合わせ部分の構造のもう一つの他の実施例を示す拡大平断面図である。
【図１１】本発明のもう一つの他の実施例の冷却貯蔵庫の縦断側面図である。
【図１２】図１１の冷却貯蔵庫の縦断正面図である。
【図１３】図１１の冷却貯蔵庫の仕切部材の下方斜視図である。
【符号の説明】
Ｒ　冷却貯蔵庫
１　断熱箱体
２　貯蔵室
２Ａ　上貯蔵室
２Ｂ　下貯蔵室
３　機械室
４　車輪
５　仕切部材
７、７Ａ　ダクト板
８　閉塞板
９　吐出ダクト
１０Ａ、１０Ｂ　冷気吐出口
１１　中間吸込口
１２Ａ、１２Ｂ　送風機
１３　連通口
１４　スライド板
１５Ａ、１５Ｂ　扉
１６　断熱仕切板
１７　蓄冷室
１８　蓄冷剤
２１　吸込口
２２Ａ、２２Ｂ　温度センサ
３７　断熱材
４１　断熱材
４２　案内ダクト
４３　冷気流入口
４４　風向板
４９　吸込口ガード[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a cooling storage for keeping a storage room at a low temperature using a regenerator.
[0002]
[Prior art]
Conventionally, this type of cold storage is used in, for example, a low-temperature article transportation system. In this physical distribution system, AC power cannot be used during transportation of the cooling storage, so a battery is mounted in the cooling storage, and a regenerator is disposed in the heat insulating box of the refrigerating storage, and the regenerator is cooled by the latent heat of fusion of the regenerator. The cooled air is circulated to a storage room by a direct current (DC) blower supplied from the battery and cooled.
[0003]
Further, a temperature detecting means for detecting the temperature in the storage room is provided in the storage room, and the output of the temperature detecting means cools the storage room to a predetermined temperature, that is, the temperature of freezing or refrigeration.
[0004]
However, since only one temperature zone is provided in the cooling storage as described above, if there are both frozen and refrigerated goods even if the goods are small, two cooling units for freezing and refrigeration are required. The storage had to be mounted on the delivery means.
[0005]
Therefore, in order to store both the frozen and refrigerated articles in one cooling storage, for example, as shown in JP-A-2001-272163, a partition plate is provided in the storage chamber of the cooling storage and the freezing room and the refrigeration room are provided. Cool storages have been developed which are formed and cool the freezer compartment by the latent heat of melting of the regenerator.
[0006]
[Problems to be solved by the invention]
However, in a conventional cooling storage having two temperature zones, ducts for sucking cool air from each room are configured, so that the structure becomes complicated and causes a rise in cost, and particularly in a severe use environment such as distribution equipment. Then, there was a problem that caused damage and failure.
[0007]
In view of the above, the present invention has been made in order to solve the conventional problems, and provides a cooling storage having a simplified duct structure while forming two temperature zones in a storage room in one cooling storage. The purpose is to do so.
[0008]
[Means for Solving the Problems]
In the cooling storage of the present invention, a storage room is formed in the heat insulating box body, and the storage room is cooled by the latent heat of melting of the cold storage agent.The cold storage room for storing the cold storage agent and the storage room are divided into a plurality of chambers. A partition member for partitioning, a discharge duct for supplying cool air cooled by a regenerator to each of the partitioned chambers, and a communication port formed in the partition member and communicating with each of the chambers partitioned by the partition member And a suction port communicating between the compartment located on the side of the cold storage compartment and the cold storage compartment of each compartment, and a temperature control for independently adjusting the amount of cold air supplied to each compartment based on the temperature of each compartment. Means, each room partitioned by the partition member is independently controlled at a different temperature, so that each room can store a storage item requiring cooling in a different temperature zone. Become. Also, the collapse of the load of the stored items is less likely to occur.
[0009]
In particular, the cold air in the room that is not the cold storage room side among the rooms partitioned by the partition member flows into the cold storage room side room from the communication port of the partition member, and is sucked into the cold storage room from the suction port together with the cold air in the room. Therefore, the duct structure for circulating the cool air is simplified, and the cost can be reduced and the durability can be improved.
[0010]
According to the second aspect of the present invention, in addition to the above, the communication port is provided with a cool air flow rate adjusting means. Therefore, for example, when a room other than the cold storage room is set to a higher temperature refrigeration room, the outside air temperature is low. By reducing the flow rate of the cool air by the cool air flow rate adjusting means in the communication port, it is possible to effectively prevent the refrigerating compartment from being excessively cooled. On the other hand, when both chambers are used at the same temperature, the so-called pull-down characteristic is improved by increasing the amount of cool air flowing through the communication port.
[0011]
In the invention of claim 3, in addition to the above inventions, the discharge duct is configured to supply the cold air cooled by the regenerator to the room located on the cold storage room side, and then to supply the other room. As described above, when a room that is not on the cold storage room side is made a higher temperature refrigerator room, and when a room on the cold storage room side is made into a lower temperature freezing room, the temperature of cold air to the cold room is raised, Temperature controllability can be improved.
[0012]
According to the invention of claim 4, in addition to the above, each of the discharge ducts is formed at a position corresponding to each of the chambers, and a cool air discharge port for supplying cool air to each of the chambers is formed on the partition member. A guide duct for guiding the cool air supplied to the room located to the discharge duct on the other room side, and separating the cool air inlet of this guide duct from the cool air discharge port of the room located on the cold storage room side. Since the cooling air is formed at the position where the cooling air is stored, the cool air supplied to the room on the cold storage room side does not directly reach another room. This makes it possible to prevent the other chamber from being supercooled without providing a temperature assurance heater or the like in the other chamber.
[0013]
According to the fifth aspect of the present invention, in addition to the above, the cold air inlet of the guide duct is provided with a wind direction plate protruding in a direction away from the cold air discharge port of the room located on the cold storage room side. The inconvenience that the supplied cool air directly reaches another room can be more favorably eliminated.
[0014]
In the invention of claim 6, in addition to the invention of claim 4 or claim 5, since the burring process is performed on the cool air inlet of the guide duct, the flow of the cool air sucked from the cool air inlet is adjusted, and the other chamber is adjusted. It is possible to smoothly supply the cool air to the cooling air and improve the strength around the cool air inlet.
[0015]
According to the seventh aspect of the present invention, since the communication port is formed in the partition member in addition to the above-described inventions, it is possible to avoid a disadvantage that the communication port is blocked by an article placed on the partition member. However, even when a large amount of articles are stored in another room, it is possible to ensure the circulation of cool air.
[0016]
According to the eighth aspect of the present invention, in addition to the above-mentioned inventions, each of the discharge ducts is provided at a position corresponding to an upper portion of each of the chambers, and is provided with a cool air discharge port for supplying cool air to each of the chambers. Since it is directed downward, it is possible to avoid the inconvenience that each cool air discharge port is blocked by the articles stored in each room, and to secure the cool air circulation even when a large amount of articles are stored in each room. Will be able to do it.
[0017]
According to the ninth aspect of the present invention, in addition to the above-mentioned inventions, the suction port is provided with a suction port guard projecting toward the storage chamber, so that the suction port is similarly blocked by the articles stored in the cold storage chamber. It is possible to avoid inconvenience and to ensure the circulation of cool air even when a large amount of articles are stored in the room.
[0018]
According to the tenth aspect of the present invention, in addition to the above inventions, the partition member is detachable and can be stored along the wall surface of the storage room in a detached state, so that the partition member can be removed according to the purpose of use. Thereby, the storage space of the room in the target temperature zone can be expanded. In addition, since it is not necessary to secure a storage place when detached, parts management becomes easy.
[0019]
According to the eleventh aspect of the present invention, in addition to the above, there is provided a mounting member on which the partition member is removably mounted, and a heat insulating material is provided on an upper surface of the mounting member, so that the partition member is stably held. In addition to this, heat insulation between the chambers partitioned by the partition member can be effectively performed.
[0020]
According to the twelfth aspect of the present invention, in addition to the above inventions, a pair of double-doors for opening and closing the opening of the storage chamber are provided so that the side surfaces of the doors abut each other when both doors are closed. As a result, the door can be opened and closed even in a relatively small installation area, and the contact area between the two doors is increased to prevent cold air leakage and improve the heat insulation performance with a simple configuration. Become.
[0021]
According to the thirteenth aspect of the present invention, in addition to the above, the side surfaces of both doors are stepped, so that the contact area between both doors can be increased, and the heat insulation performance can be further improved. . In particular, in this case, the processing of the door is relatively easy, so that a decrease in productivity is also prevented.
[0022]
According to the fourteenth aspect, in addition to the twelfth aspect, the side surfaces of the two doors are inclined, so that the contact area between the two doors can be similarly increased to further improve the heat insulation performance. Become like In particular, in this case, since the closing of the door on the outer side to be polymerized acts in a direction in which both doors are brought into close contact with each other, the heat insulating performance is further improved.
[0023]
According to the invention of claim 15, in addition to the invention of claim 12, claim 13, or claim 14, a heat insulating material is provided on the side surface of each of the doors when the doors are closed. Is further improved in the heat insulating performance.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the cooling storage R of the present invention will be described with reference to FIG. FIG. 1 is a perspective view of the cooling storage R of the present invention, FIG. 2 is a vertical side view of the same, and FIG. 3 is a vertical front view of the same.
[0025]
In the state where the AC power supply is connected on the delivery base, the cooling storage R of the embodiment performs the cold storage operation of operating the compressor and freezing the cold storage agent by receiving the supply of the AC power supply, and also performs an article (such as food). After being stored, it is loaded on the carrier of a delivery vehicle such as a truck with the AC power supply cut off, and during the delivery, the cool air cooled by the melting latent heat of the regenerator is circulated to the storage room to cool it. It is a logistics cooling storage that operates.
[0026]
The cooling storage R comprises a heat-insulating box 1 opening to the front. A storage room 2 for storing articles is formed in the heat-insulating box 1, and the front of the storage room 2 is opened and closed. A pair of doors 15A, 15B of a double door type is provided, and a machine room 3 is formed below the heat insulating box 1. Further, wheels 4 for movement are attached to the four lower corners of the cooling storage R.
[0027]
Reference numeral 31 denotes an openable and closable panel that covers the front surface of the machine room 3. The panel 31 has a slit 32 for ventilation. From this panel 31, temperature control knobs 33A and 33B connected to a control device (not shown) are provided facing forward.
[0028]
In the storage room 2, a partition member 5 constituted by a heat insulating panel for vertically forming the storage room 2 is detachably attached. Thus, an upper storage room 2A (another room) is formed above the partition member 5, and a lower storage room 2B (a room on the cold storage room side) is formed below the partition member 5. The upper storage room 2A and the lower storage room 2B are provided with temperature sensors 22A and 22B for detecting the temperatures of the chambers 2A and 2B, respectively. These temperature sensors 22A and 22B are provided by the control device described above. It is connected to the. The partition member 5 is held by being placed on the upper surface of a fitting 6 having a substantially L-shaped cross section attached to the inner wall of the storage room 2.
[0029]
A duct plate 7 is mounted on the left side of the storage room 2 with a space between the heat insulating box 1 and a discharge duct 9 between the duct plate 7 and the heat insulating box 1. Is configured. In the duct plate 7, a plurality of intermediate suction ports 11 are arranged in a slit shape corresponding to the lower side of the partition member 5, and inside the discharge duct 9 corresponding to the lower edge of the intermediate suction port 11. A closing plate 8 is provided to partition the inside of the discharge duct 9 up and down.
[0030]
The upper and lower discharge ducts 9 correspond to the sides of the chambers 2A and 2B, respectively, and the upper and lower partitions of the discharge duct 9 correspond to the upper portions of the cool air discharge ports 10A and 10B. Is formed, and is opened at the upper part inside each of the chambers 2A and 2B. In addition, blowers 12A and 12B are provided at the respective cool air discharge ports 10A and 10B. The suction side of each of the blowers 12A and 12B communicates with the inside of the discharge duct 9 divided vertically as described above, and the discharge side communicates with the upper storage room 2A and the lower storage room 2B, respectively. Each of the blowers 12A and 12B is operated by a battery 25 installed in the machine room 3.
[0031]
A plurality of slit-shaped communication ports 13 are formed on the right side of the partition member 5 to communicate the upper and lower storage chambers 2A and 2B with each other. The communication port 13 is formed in a paragraph as shown in FIG. 4, and a slide plate 14 as a cool air flow amount adjusting means slidable back and forth is attached to this paragraph.
[0032]
The slide plate 14 is also formed with a plurality of slit-shaped through holes 14A. When the slide plate 14 is slid so that the through holes 14A match the respective communication ports 13, the communication ports 13 are fully opened, and When the hole 14A and the communication port 13 are completely shifted, the communication port 13 is fully closed by the slide plate 14. The position of the slide plate 14 can be arbitrarily adjusted between the fully open state and the fully closed state of the communication port 13.
[0033]
Further, since the communication port 13 is formed in a paragraph, even when a large amount of articles are placed on the partition member 5, the inconvenience of closing the communication port 13 is avoided.
[0034]
The bottom of the storage room 2 (the lower storage room 2B) is stepped down in a stepped manner, and a heat insulating partition plate 16 is erected at a predetermined distance from the bottom surface of the heat insulating box 1 in the paragraph. Thereby, a cold storage room 17 partitioned from the storage room 2 is formed in the lower front part of the heat insulating box 1. The lower storage room 2B is located on the side of the cold storage room 17 of the partition member 5. In the cold storage room 17, a plurality of flat cold storage agents 18 are provided at intervals on the left and right sides. The regenerator 18 is cooled by a cooler 20 which forms a cooling device together with a compressor 19, a condenser 23, and a blower 24 for the condenser, which are installed in the machine room 3.
[0035]
Further, a suction port 21 is formed on the right side of the heat insulating partition plate 16. The suction port 21 communicates the upper storage room 2 (lower storage room 2B) with the right side of the lower cold storage room 17. The discharge duct 9 communicates with the left side of the cold storage chamber 17.
[0036]
On the other hand, FIG. 5 is an enlarged plan sectional view of the butted portion of the doors 15A and 15B. The doors 15A and 15B are heat-insulated doors filled with a heat-insulating material, and gaskets 36 are attached around the inner surfaces of the doors 15A and 15B so as to be in close contact with the periphery of the opening of the heat-insulating box 1. Further, a heat insulating material 37 is attached to each side surface where the doors 15A and 15B abut. The heat insulating material 37 has a predetermined elasticity, and when the doors 15A and 15B are closed to come into contact with each other, the doors 15A and 15B are substantially brought into contact with each other.
[0037]
Since the doors 15A and 15B are of the double door type, the size per door is smaller than that of the single door type, and the doors 15A and 15B can be easily opened and closed even in a narrow space such as a carrier of a delivery vehicle. Further, since the side surfaces of the doors 15A and 15B abut at the butted portions of the doors 15A and 15B, and the heat insulating materials 37 and 37 are also interposed, the cool air leakage from the butted portions of the two doors 15A and 15B is effective. And the heat insulation performance is improved.
[0038]
On the other hand, the temperature sensor 22A for detecting the temperature of the upper storage room 2A, the temperature sensor 22B for detecting the temperature of the lower storage room 2B, and the temperature control knobs 33A and 33B are connected to the control device. The blowers 12A and 12B are controlled based on these outputs. The temperature control knobs 33A and 33B set the temperatures in the upper storage chamber 2A and the lower storage chamber 2B, and correspond to the control by the temperature sensors 22A and 22B, respectively.
[0039]
With the above configuration, the cooling storage R receives the supply of the AC power and operates the compressor 19 to freeze the regenerator 18 while the AC power is connected on the delivery base. Then, after storing articles such as foods in the cooling storage R, they are loaded on a carrier of a delivery vehicle such as a truck in a state where AC power is cut off, and cool air cooled by the melting latent heat of the regenerator 18 is delivered during the delivery. Circulation is performed in the storage room 2 to perform cooling.
[0040]
At this time, if the user wants to freeze and refrigerate the inside of the storage room 2 in advance, the partition member 5 is installed on the fixture 6, and the upper storage room 2A is set to the refrigeration temperature by the temperature control knobs 33A and 33B. Band (used as a refrigerator), and the lower storage room 2B is set in a freezing temperature zone (used as a freezer). Thereby, the operation of the blowers 12A and 12B is controlled by the control device.
[0041]
Next, the flow of cool air in the storage room 2 will be described. When the blowers 12A and 12B of the upper storage room 2A and the lower storage room 2B are operated by the control device, respectively, the cool air cooled by the melting latent heat of the regenerator 18 frozen in the regenerator 17 is cooled by the blower 12B. After being raised in the discharge duct 9 below the closing plate 8 by this, it is discharged into the lower storage room 2B.
[0042]
The cool air in the lower storage room 2B is sucked from the intermediate suction ports 11 by the blower 12A, rises in the discharge duct 9 above the closing plate 8, and is then discharged into the upper storage room 2A. Then, the cool air circulated in the upper storage room 2A returns to the lower storage room 2B from the communication port 13 of the partition member 5 (supposed to be opened by the slide plate 14). The cool air discharged into the lower storage room 2B circulates through the lower storage room 2B, and then returns to the cool storage room 17 from the suction port 21 of the heat insulating partition plate 16 together with the cool air flowing from the communication port 13. The cold air returned to the cold storage chamber 17 passes between the cold storage agents 18 to exchange heat, is cooled, and then repeatedly circulated into the discharge duct 9 as described above.
[0043]
At this time, the temperatures in the upper storage room 2A and the lower storage room 2B are detected by the temperature sensors 22A and 22B, and the control device controls the blowers 12A and 12B based on the temperature of each room and the temperature set by the temperature control knobs 33A and 33B. Control the operation of As a result, the inside of the upper storage room 2A is controlled by a refrigerating room which is a refrigeration temperature zone, and the inside of the lower storage room 2B is controlled by a freezing room which is a freezing temperature band.
[0044]
In particular, at this time, since the cool air after being discharged into the lower storage room 2B is supplied through the discharge duct 9 into the upper storage room 2A serving as a refrigeration room, the temperature becomes relatively high. Thereby, the temperature controllability of the upper storage room 2A is improved.
[0045]
Here, especially in a low temperature season such as winter, even when the blower 12A is stopped, the inside of the upper storage room 2A may fall below the refrigeration temperature zone. In such a case, if the slide plate 14 is slid and the communication ports 13 are completely closed, the circulation of cool air in the upper and lower chambers can be prevented, so that the overcooling of the upper storage chamber 2A can be prevented or reduced.
[0046]
In the above example, the upper storage room 2A is used as a refrigerator room and the lower storage room 2B is used as a freezer room. However, both the rooms 2A and 2B are controlled and used in the same temperature zone of refrigeration or freezing. Is also possible. In that case, both temperature control knobs 33A and 33B are set to the same temperature zone. In such a case, if the communication ports 13 are fully opened by the slide plate 14, the cool air flow above and below the partition member 5 is improved, so that the pull-down characteristic and the temperature controllability of the upper storage chamber 2A are improved.
[0047]
Here, when it is desired to use the inside of the storage room 2 as an extended temperature zone with the inside of the storage room 2 as one temperature zone, the partition member 5 may be removed. In this case, both temperature control knobs 33A and 33B are set to the same temperature zone. If a switch for detecting the presence or absence of the partition member 5 is provided, the control device can automatically switch to control using only one of the temperature sensors 22A (22B).
[0048]
Here, the size of the partition member 5 is smaller than the bottom surface and the back surface of the storage room 2, and along the back surface or the bottom surface (on the heat insulating partition plate 16) of the storage room 2 as shown in FIG. It can be stored. As a result, there is no need to worry about the storage location when the component is removed, and component management becomes easy.
[0049]
11 to 13 show a cooling storage R according to another embodiment of the present invention. In each drawing, the same reference numerals as those in FIGS. 1 to 6 have the same or similar functions. Further, it is assumed that the compressor 19 and the like are similarly installed in the machine room 3.
[0050]
In this case, a heat insulating material 41 is attached to the upper surface of the fixture 6, and the partition member 5 is detachably mounted on the fixture 6 via the heat insulator 41. The heat insulating material 41 further improves the heat insulating performance between the chambers 2A and 2B.
[0051]
A guide duct 42 is formed in the lower surface of the partition member 5 in a left-right direction, and when the partition member 5 is placed on the fixture 6, the left end of the guide duct 42 is facing the duct plate. 7 and corresponding to the intermediate suction port 11. Further, a plurality of cool air inlets 43 are formed at the right end of the guide duct 42, and a burring process is performed around each of the cool air inlets 43 so as to protrude toward the guide duct 42.
[0052]
The cool air inlet 43 of the guide duct 42 is formed on the left side of the communication port 13 and at a position separated from the cool air outlet 10B. Further, on both sides of the cool air inlet 43, wind direction plates 44, 44 projecting in a direction away from the cool air discharge port 10B, that is, obliquely downward and rightward are formed (not shown in FIG. 13).
[0053]
In this case, the cool air discharge ports 10A and 10B and the blowers 12A and 12B located on the upper left side of the chambers 2A and 2B are directed obliquely downward. Thereby, even when a large amount of articles are stored in each of the chambers 2A and 2B, it is possible to avoid the inconvenience of closing the cool air discharge ports 10A and 10B.
[0054]
Further, a lowering duct 47 is formed by a duct plate 46 on the right side of the lower storage room 2B at a position corresponding to the lower side of the communication port 13, and the upper end of the lowering duct 47 communicates with the lower side of the communication port 13. The lower end opens into the lower storage room 2B at a cool air outlet 48 directed obliquely downward and to the right. The inconvenience that the cool air outlet 48 is obliquely opened downward in this manner to be blocked by the article is avoided.
[0055]
This cool air outlet 48 corresponds to above the suction port 21. The suction port 21 is provided with a suction port guard 49 that protrudes toward the storage room 2, thereby closing the suction port 21 even when a large number of articles are placed on the heat insulating partition plate 16. The inconvenience of peeling can be avoided.
[0056]
With the above configuration, the flow of the cool air in the storage room 2 in this case will be described. When the blowers 12A and 12B of the upper storage room 2A and the lower storage room 2B are operated by the control device, respectively, the cool air cooled by the melting latent heat of the regenerator 18 frozen in the regenerator 17 is cooled by the blower 12B. After being raised in the discharge duct 9 below the closing plate 8 by this, the liquid is discharged obliquely downward into the lower storage chamber 2B.
[0057]
Further, the cool air discharged into the lower storage room 2B circulates inside. Then, the cool air reaching the upper right portion in the lower storage room 2B is sucked from the cool air inlet 43 into the guide duct 42 of the partition member 5 by the blower 12A, passes therethrough, reaches the intermediate suction port 11, and reaches the closing plate 8 After ascending in the upper discharge duct 9, the liquid is discharged obliquely downward toward the upper storage chamber 2A.
[0058]
Since the cool air inlet 43 is separated from the cool air discharge port 10B in this way, the inconvenience that the cool air discharged from the cool air discharge port 10B into the lower storage room 2B directly reaches the upper storage room 2A can be solved. In particular, since the wind direction plates 44, 44 protrude in the direction away from the cool air discharge port 10 B, it is possible to allow the cool air after having circulated to some extent in the lower storage room 2 B to the cool air inlet 43. Become. Further, since the cool air inlet 43 is burred, the flow of the cool air flowing into the guide duct 42 is adjusted, and the cool air supply to the upper storage chamber 2A is smoothly performed.
[0059]
Then, the cool air circulated in the upper storage chamber 2A enters the descending duct 47 from the communication port 13 of the partition member 5 (supposed to be opened by the slide plate 14), and flows from the cool air outlet 48 into the lower storage chamber 2B. Return to On the other hand, the cool air discharged into the lower storage room 2B circulates through the lower storage room 2B, and then flows through the inlet guard 49 of the heat insulating partition plate 16 together with the cool air flowing from the cool air outlet 48. From the cold storage room 17. The cold air returned to the cold storage chamber 17 passes between the cold storage agents 18 to exchange heat, is cooled, and then repeatedly circulated into the discharge duct 9 as described above.
[0060]
The temperature control method is the same as that described above. The same applies to the paragraph shape of the communication port 13. When the partition member 5 is removed and placed on the heat insulating partition plate 16 on the bottom surface of the storage room 2, the paragraph shape of the communication port 13 matches the suction port guard 49, and the communication port 13 is connected to the suction port. 21.
[0061]
As described above, in the cooling storage R of the present invention, the storage room 2 is formed in the heat-insulating box 1, and the inside of the storage room 2 is cooled by the latent heat of melting of the cold storage agent 18. Storage compartment 17, a partition member 5 for dividing the interior of the storage compartment 2 into a plurality of compartments 2A, 2B, and a discharge duct 9 for supplying cold air cooled by a regenerator 18 to each of the compartments 2A, 2B. And a communication port 13 formed in the partition member 5 and communicating with each of the chambers 2A and 2B partitioned by the partition member 5, and a suction port communicating with the partitioned lower storage room 2B and the cold storage chamber 17. 21 and a control device that independently adjusts the amount of cold air supplied to each of the chambers 2A and 2B based on the temperature of each of the chambers 2A and 2B, and the blowers 12A and 12B. Each chamber 2A, 2B is independently controlled to a different temperature, and each chamber 2A, 2B Consisting of articles requiring to be able to house respectively the cooling at different temperature zones to. In addition, since the inside of the storage room 2 can be used by being divided into upper and lower portions by the partition member 5, the collapse of the load of the stored articles is less likely to occur.
[0062]
In particular, the cool air in the upper storage room 2A partitioned by the partition member 5 flows into the lower storage room 2B from the communication port 13 of the partition member 5 and the cold storage room 2B together with the cool air in the lower storage room 2B. Therefore, there is no need to form a return duct for circulating cool air, so that the duct structure is simplified, cost can be reduced, and durability can be improved.
[0063]
Further, since the communication port 13 is provided with the slide plate 14, when the upper storage room 2A is used as a refrigerator as described above, the amount of cold air flowing through the communication port 13 is reduced in a situation where the outside air temperature is low. Thereby, it is possible to effectively prevent the refrigerating compartment from being excessively cooled. On the other hand, when the two chambers 2A and 2B are used at the same temperature, the so-called pull-down characteristic is improved by increasing the amount of cool air flowing through the communication port 13.
[0064]
If the guide duct 42 is formed in the partition member 5 as shown in FIGS. 11 and 12, and the cool air inlet 43 of the guide duct 42 is formed at a position separated from the cool air discharge port 10B of the lower storage chamber 2B, the lower storage The cool air supplied to the chamber 2B does not directly reach the upper storage chamber 2A. This makes it possible to prevent the upper storage chamber 2A from falling into a supercooled state without providing a temperature assurance heater or the like in the upper storage chamber 2A.
[0065]
Further, if a wind direction plate 44 protruding in a direction away from the cool air discharge port 10B of the lower storage room 2B is provided at the cool air inlet 43 of the guide duct 42, the cool air supplied to the lower storage room 2B can directly flow into the upper storage room. The inconvenience of 2A can be more favorably solved. Further, if burring is performed on the cool air inlet 43 of the guide duct 42, the flow of the cool air sucked from the cool air inlet 43 can be adjusted, and the cool air can be smoothly supplied to the upper storage room 2A. In addition, the strength around the cool air inlet 43 can be improved.
[0066]
Here, in the above embodiment, the cool air from the cold storage room 17 is first discharged to the lower storage room 2B through the discharge duct 9, and the cool air in the lower storage room 2B is discharged to the upper storage room 2A. In the first or second aspect of the present invention, the invention is not limited to this, and the two chambers 2A and 2B may communicate with the cold storage chamber 17 by a series of discharge ducts 9 as shown in FIG. Further, as shown in FIG. 8, discharge ducts 9A and 9B may be formed by a duct plate 7A to independently communicate the cold storage chamber 17 with the respective chambers 2A and 2B.
[0067]
However, if the structure is such that the cold air cooled by the regenerator 18 is supplied to the lower storage room 2B by the discharge duct 9 and then supplied to the upper storage room 2A by the discharge duct 9, the upper storage room 2A is In order to improve the temperature controllability in the refrigeration room by increasing the temperature of the cold air to the refrigeration room, for example, when the refrigeration room is a high-temperature refrigeration room and the lower storage room 2B is a lower-temperature freezing room. Become.
[0068]
If the side surfaces of both doors 15A and 15B are stepped as shown in FIG. 9, the contact area between both doors 15A and 15B can be enlarged, and the heat insulation performance can be further improved. Particularly, in this case, since the processing of the doors 15A and 15B is relatively easy, the deterioration of productivity is also prevented.
[0069]
Further, even if the side surfaces of both doors 15A and 15B are inclined as shown in FIG. 10, the contact area between both doors 15A and 15B can be similarly increased, and the heat insulation performance can be further improved. In particular, in this case, since the closing of the door 15B that overlaps on the outside acts in a direction in which the two doors 15A and 15B are brought into close contact with each other, the heat insulating performance is further improved.
[0070]
Further, in the above embodiment, the present invention has been described in the case of a wheeled cooling storage used in physical distribution, but the present invention is also effective when used in a kitchen. The present invention is also applicable to a cold storage using a regenerator without wheels.
[0071]
【The invention's effect】
As described in detail above, according to the present invention, a storage room is formed in an insulated box body, and the storage room is cooled by the latent heat of fusion of the cold storage agent. A partition member that partitions the plurality of chambers, a discharge duct for supplying cold air cooled by the cold storage agent to each partitioned chamber, and each chamber formed in the partition member and partitioned by the partition member. The communication port that communicates, the suction port that communicates between the compartment that is located on the cold storage room side and the cold storage room in each of the compartments, and independently supplies the amount of cold air to each room based on the temperature of each room. Temperature control means for controlling, so that each room partitioned by the partition member is independently controlled to a different temperature, and each room needs to store a storage item that needs cooling in a different temperature zone. Will be able to Also, the collapse of the load of the stored items is less likely to occur.
[0072]
In particular, the cold air in the room that is not the cold storage room side among the rooms partitioned by the partition member flows into the cold storage room side room from the communication port of the partition member, and is sucked into the cold storage room from the suction port together with the cold air in the room. Therefore, the duct structure for circulating the cool air is simplified, and the cost can be reduced and the durability can be improved.
[0073]
According to the second aspect of the present invention, in addition to the above, the communication port is provided with a cool air circulation amount adjusting means. For example, when a room that is not on the cold storage room side is made a higher temperature refrigeration room, the outside air temperature is reduced. In a low situation, by reducing the flow rate of the cool air by the cool air flow rate adjusting means of the communication port, it is possible to effectively prevent the refrigerating compartment from being excessively cooled. On the other hand, when both chambers are used at the same temperature, the so-called pull-down characteristic is improved by increasing the amount of cool air flowing through the communication port.
[0074]
According to the third aspect of the present invention, in addition to the above inventions, the discharge duct supplies cold air cooled by the regenerator to a room located on the cold storage room side and then to another room. Therefore, as described above, a room that is not on the cold storage room side is set as a higher temperature refrigeration room, and when the room on the cold storage room side is set as a lower temperature freezing room, the temperature of the cold air to the refrigeration room is increased. The temperature controllability in the refrigerator compartment can be improved.
[0075]
According to the invention of claim 4, in addition to the above, the cold storage chamber is formed at a position corresponding to each chamber of the discharge duct, and formed at the partition member and the cold air discharge port for supplying cool air to each chamber. And a guide duct for guiding the cool air supplied to the chamber located on the side of the room to the discharge duct on the other side of the room. Since the cooling air is formed at a position away from the cold storage room, the cool air supplied to the room on the cold storage room side does not directly reach another room. This makes it possible to prevent the other chamber from being supercooled without providing a temperature assurance heater or the like in the other chamber.
[0076]
According to the fifth aspect of the present invention, in addition to the above, at the cool air inlet of the guide duct, a wind direction plate protruding in a direction away from the cool air discharge port of the room located on the cold storage room side is provided. The inconvenience that the cool air supplied to one room directly reaches another room can be more favorably eliminated.
[0077]
According to the invention of claim 6, in addition to the invention of claim 4 or 5, burring is performed on the cool air inlet of the guide duct, so that the flow of the cool air sucked from the cool air inlet is adjusted, and This makes it possible to smoothly supply cold air to the room, and to improve the strength around the cold air inlet.
[0078]
According to the seventh aspect of the present invention, in addition to the above inventions, the communication port is formed on the partition member so that the communication port is blocked by an article placed on the partition member. Thus, the circulation of cool air can be ensured even when a large amount of articles are stored in another room.
[0079]
According to the invention of claim 8, in addition to the above inventions, each of the discharge ducts is provided at a position corresponding to the upper part of each chamber, and is provided with a cool air discharge port for supplying cool air to each chamber. Is directed obliquely downward, so that the inconvenience of similarly blocking each cool air discharge port with the articles stored in each room can be avoided, and the cool air circulation can be performed even when a large amount of articles are stored in each room. Can be secured.
[0080]
According to the ninth aspect of the present invention, in addition to the above-described inventions, the suction port is provided with a suction port guard projecting toward the storage room, so that the suction port is similarly formed by the articles stored in the cold storage room. The inconvenience of being blocked can be avoided, and the circulation of cool air can be ensured even when a large amount of articles are stored in the room.
[0081]
According to the tenth aspect of the present invention, in addition to the above inventions, the partition member is detachable, and can be stored along the wall surface of the storage room in a detached state. By removing it, the storage space of the room in the target temperature zone can be expanded. In addition, since it is not necessary to secure a storage place when detached, parts management becomes easy.
[0082]
According to the eleventh aspect of the present invention, in addition to the above, there is provided a mounting member on which the partition member is removably mounted, and a heat insulating material is provided on an upper surface of the mounting member. While being able to hold | maintain, the heat insulation between each chamber partitioned by the partition member can also be performed effectively.
[0083]
According to the twelfth aspect of the present invention, in addition to the above-mentioned inventions, a pair of double doors are provided to open and close the opening of the storage room, and the side surfaces of the doors abut each other when both doors are closed. As a result, the door can be opened and closed even in a relatively small installation area, and the contact area between the two doors can be increased to prevent cold air leakage, and the heat insulation performance can be improved with a simple configuration. Become like
[0084]
According to the invention of claim 13, in addition to the above, the side surfaces of both doors have a stepped shape, so that the contact area between both doors can be enlarged, and the heat insulation performance can be further improved. become. In particular, in this case, the processing of the door is relatively easy, so that a decrease in productivity is also prevented.
[0085]
According to the fourteenth aspect, in addition to the twelfth aspect, the side surfaces of the two doors are inclined, so that the contact area between the two doors is similarly increased to further improve the heat insulating performance. Will be able to In particular, in this case, since the closing of the door on the outer side to be polymerized acts in a direction in which both doors are brought into close contact with each other, the heat insulating performance is further improved.
[0086]
According to the invention of claim 15, in addition to the invention of claim 12, claim 13, or claim 14, heat insulating materials are provided on the side surfaces of both doors when the doors are closed so that they come into contact with each other. The heat insulation performance between the doors is further improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of a cooling storage according to the present invention.
FIG. 2 is a longitudinal sectional side view of the cooling storage of FIG. 1;
FIG. 3 is a vertical sectional front view of the cooling storage of FIG. 1;
FIG. 4 is a perspective view of a partition member of the cooling storage of FIG. 1;
FIG. 5 is an enlarged plan sectional view of a butt portion of a door of the cooling storage in FIG.
FIG. 6 is a longitudinal sectional side view of the cooling storage of FIG. 1 with a partition member removed.
FIG. 7 is a longitudinal sectional front view showing another embodiment of the cooling storage duct structure of the present invention.
FIG. 8 is a longitudinal sectional side view showing another embodiment of the duct structure of the cooling storage according to the present invention.
FIG. 9 is an enlarged plan sectional view showing another embodiment of the structure of the door butting portion of the cooling storage according to the present invention.
FIG. 10 is an enlarged plan sectional view showing another embodiment of the structure of the door butting portion of the cooling storage according to the present invention.
FIG. 11 is a longitudinal sectional side view of a cooling storage according to another embodiment of the present invention.
FIG. 12 is a longitudinal sectional front view of the cooling storage of FIG. 11;
13 is a lower perspective view of a partition member of the cooling storage of FIG. 11;
[Explanation of symbols]
R cooling storage
1 Insulated box
2 storage room
2A Upper storage room
2B Lower storage room
3 Machine room
4 wheels
5 Partition members
7, 7A duct plate
8 Closure plate
9 Discharge duct
10A, 10B Cold air outlet
11 Intermediate suction port
12A, 12B blower
13 Communication port
14 Slide plate
15A, 15B door
16 Insulated divider
17 Cold storage room
18 Cool storage agent
21 Suction port
22A, 22B temperature sensor
37 Insulation
41 Insulation
42 guide duct
43 Cool air inlet
44 Wind direction board
49 Suction port guard

Claims

A storage room is configured in an insulated box body, and in a cooling storage configured by cooling the storage room by the latent heat of fusion of a cold storage agent,
A cold storage chamber for storing the cold storage agent,
A partition member for dividing the storage chamber into a plurality of chambers,
A discharge duct for supplying cold air cooled by the cold storage agent to each partitioned chamber,
A communication port formed in the partition member and communicating with each of the chambers partitioned by the partition member;
Of the partitioned chambers, a suction port communicating between the cold storage room and a room located on the cold storage room side,
And a temperature control means for independently controlling a supply amount of cold air to each of the chambers based on a temperature of each of the chambers.

2. A cooling storage according to claim 1, wherein said communication port is provided with a cooling air flow rate adjusting means.

The cooling storage according to claim 1, wherein the discharge duct supplies the cool air cooled by the cool storage agent to a room located on the cool storage room side, and then supplies the cool air to another room.

A cool air discharge port formed at a position corresponding to each of the chambers of the discharge duct to supply cool air to each of the chambers,
A guide duct formed on the partition member, for guiding cool air supplied to the chamber located on the cold storage chamber side to the discharge duct on the other chamber side,
4. The cooling storage according to claim 3, wherein the cooling air inlet of the guide duct is formed at a position separated from the cooling air discharge port of the chamber located on the cold storage room side.

The cooling storage according to claim 4, wherein a wind direction plate protruding in a direction away from the cool air discharge port of the chamber located on the cold storage room side is provided at a cool air inlet of the guide duct.

The cooling storage according to claim 4 or 5, wherein a burring process is applied to a cool air inlet of the guide duct.

7. The cooling storage according to claim 1, wherein the communication port is formed in the partition member in a stepped manner.

The discharge duct is formed at a position corresponding to an upper part of each of the chambers, and is provided with a cool air discharge port for supplying cool air to each of the chambers, and each cool air discharge port is directed obliquely downward. The cooling storage according to any one of claims 1, 2, 3, 3, 4, 5, 6, and 7.

The said inlet is provided with the inlet guard which overhangs to the said storage room side, The claim 1, Claim 2, Claim 3, Claim 4, Claim 5, Claim 6, Claim 6, characterized by the above-mentioned. A refrigerated storage according to claim 7 or claim 8.

The said partition member is detachable and can be accommodated along the wall surface of the said storage room in the detached state, The Claim 1, Claim 2, Claim 3, Claim 4, Claim 4 characterized by the above-mentioned. 5. The cooling storage according to claim 6, claim 7, claim 8, or claim 9.

The cooling storage according to claim 10, further comprising a fixture on which the partition member is detachably mounted, wherein a heat insulating material is provided on an upper surface of the fixture.

3. A door-opening type pair of doors which open and close the opening of the storage room so that the opening and closing can be freely opened and closed, and when both doors are closed, the side surfaces of the doors abut each other. A cooling storage according to claim 3, claim 4, claim 5, claim 6, claim 7, claim 7, claim 8, claim 9, claim 10, or claim 11.

The cooling storage according to claim 12, wherein the side surfaces of the both doors have a stepped shape.

13. The refrigerator according to claim 12, wherein the side surfaces of the doors are inclined.

15. The cooling storage according to claim 12, wherein a heat insulating material is provided on a side surface of each of the two doors so as to come into contact with each other when each door is closed.