JP2004003778A - Freshness keeping storage - Google Patents

Freshness keeping storage Download PDF

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Publication number
JP2004003778A
JP2004003778A JP2002161225A JP2002161225A JP2004003778A JP 2004003778 A JP2004003778 A JP 2004003778A JP 2002161225 A JP2002161225 A JP 2002161225A JP 2002161225 A JP2002161225 A JP 2002161225A JP 2004003778 A JP2004003778 A JP 2004003778A
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JP
Japan
Prior art keywords
water
storage tank
air
storage
water storage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002161225A
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Japanese (ja)
Inventor
Tetsuei Kuramoto
倉本 哲英
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Refrigeration Co
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Filing date
Publication date
Application filed by Matsushita Refrigeration Co filed Critical Matsushita Refrigeration Co
Priority to JP2002161225A priority Critical patent/JP2004003778A/en
Publication of JP2004003778A publication Critical patent/JP2004003778A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/04Treating air flowing to refrigeration compartments
    • F25D2317/041Treating air flowing to refrigeration compartments by purification
    • F25D2317/0413Treating air flowing to refrigeration compartments by purification by humidification

Abstract

<P>PROBLEM TO BE SOLVED: To keep the freshness of vegetables, fruits or the like in a low-temperature and high-humidity atmosphere. <P>SOLUTION: This storage integrally comprises a refrigerant room 22, a water storage tank 25, a cooling coil 26 for cooling and keeping water in the tank 25 at a predetermined temperature, a spray device 27 for spraying cold water in the tank 25, a stirring device 29 for stirring the cold water in the tank 25, a fan 37 for circulating air in the refrigerator room 22, an ultraviolet generating device 34, and a photocatalyst layer 35 placed on an ultraviolet irradiation plane. The storage sprays water sanitized in the device 34 and the layer 35 into air and cools, humidifies and dedusts in the room 22, and also can remove and decompose bacteria or ethylene gas in the air and keep the freshness of vegetables, fruits 24 or the like in the room 22. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、野菜や果物などの鮮度を保持する保鮮庫に関するものである。
【0002】
【従来の技術】
従来の保鮮庫としては、殺菌機能付き高湿冷蔵庫として特開平11−30469号公報に示されているものがある。
【0003】
以下、図面を参照しながら上記従来の保鮮庫を説明する。
【0004】
図4は、従来の保鮮庫の構成図である。図4において、1は殺菌機能付き高湿冷蔵庫であり、冷蔵室2の内部には野菜や果物等の青果物18が収納されている。また、冷蔵室2内の天井付近には冷水を噴出するシャワー部3と、フィリング4と、シャワーした冷水を回収する回収器5と、送風機6が配置されている。7は水槽であり、内部に水が蓄えられている。水槽7は、供給用配管9,冷水ポンプ10を介してシャワー部3に接続されている。回収器5は回収用配管11を介して水槽7に接続されている。また、水槽7内には製氷コイル8が配置されている。14はチラーユニットであり、供給用ブライン配管15,回収用ブライン配管16を介して製氷コイル8と接続されている。また、12はオゾン発生装置であり、オゾン配管13を介して水槽7に接続されている。
【0005】
以上のように構成された保鮮庫について、以下その動作を説明する。
【0006】
製氷コイル8内にはチラーユニット14で冷却されたブラインがブラインポンプ17により循環することにより、水槽7内の水が冷却されて冷水になると共に、製氷コイル8の外周には氷が生成される。また、オゾン発生装置12で生成したオゾンはオゾン配管13を介して水槽7内に送られて、水槽7内の冷水はオゾン冷水となる。
【0007】
水槽7内のオゾン冷水は、冷水ポンプ10,供給用配管9を介して、シャワー部3からフィリング4に向けて噴出される。一方、送風機6により冷蔵室2内の空気がフィリング4に向けて吹き付けられる。フィリング4内において、送風機6で吹き付けられた冷蔵室2内の空気は、シャワー部3から噴出したオゾン冷水と接触することにより冷却・加湿され、冷蔵室2内に供給される。また、フィリング4の下方に設けた回収器5に回収されたオゾン冷水は、回収用配管11を介して水槽7に戻される。
【0008】
このように、オゾン冷水を冷蔵室2内に噴出して冷蔵室2内を冷却・加湿することにより、冷蔵室2内は、青果物18の保存に適した低温高湿状態に保持される。また、オゾンの作用により冷蔵室2内の空気を殺菌できるだけでなく、青果物18から排出されて鮮度低下の原因となるエチレンガスを分解できるので、冷蔵室2内の青果物18の鮮度を保持することができる。
【0009】
【発明が解決しようとする課題】
しかしながら、上記従来の構成は、冷蔵室2とは別のスペースに水槽7,チラーユニット14,オゾン発生装置12等が必要であり、設備が大型になるという欠点があった。また、特にオゾンは殺菌作用やエチレンガス分解作用を持つ一方で、気相オゾン濃度上限値が0.1ppmに規制されていることでもわかるように毒性が強い物質である。このオゾン濃度の制御は困難なため、装置の故障など何らかの原因でオゾン濃度が上昇した場合に、人体の健康に悪影響を及ぼす可能性があるという欠点があった。
【0010】
本発明は従来の課題を解決するもので、冷蔵室などの貯蔵室内空気の冷却・加湿・除塵機能の他、殺菌やエチレンガス除去分解機能をも備えた、野菜や果物などの青果物の鮮度を保持できるコンパクトな保鮮庫を提供することを目的とする。
【0011】
【課題を解決するための手段】
本発明の請求項1に記載の発明は、貯蔵室と、前記貯蔵室の近傍に設けた貯水槽と、前記貯水槽内の水を所定温度に冷却保持する冷却コイルと、前記貯水槽内の冷水を空気中に噴霧する噴霧装置と、前記貯水槽内の冷水を攪拌する撹拌装置と、前記噴霧装置による冷水の噴霧雰囲気を介して前記貯蔵室内の空気を循環させるファンと、前記貯蔵室内の空気の循環経路に設けた紫外線発生装置と前記紫外線発生装置の紫外線照射面に設置された光触媒層とからなるものであり、前記紫外線発生装置と前記光触媒層とで除菌処理した水を空気中に噴霧して前記貯蔵室内の冷却・加湿・除塵を行うだけでなく、空気中の雑菌やエチレンガスなどを除去分解することにより、前記貯蔵室内の空気を被冷却収納物の保存に最適な低温高湿状態に保持でき、前記被冷却収納物の鮮度を保持できる。また、前記冷却コイルの管外側では前記攪拌装置による水流が発生するため管外側の熱伝達率が向上し、前記冷却コイルの冷却性能が向上する、という作用を有する。
【0012】
本発明の請求項2に記載の発明は、請求項1に記載の発明において、紫外線発生装置を貯水槽の水面上方に設けたものであり、貯水槽内の貯溜水や空気中の雑菌などを補足した水滴のうち貯水槽に直接回収される水を、紫外線発生装置による貯水槽水面への紫外線照射により直接除菌処理できる、という作用を有する。
【0013】
請求項3に記載の発明は、請求項1に記載の発明において、撹拌装置を、貯水槽内の冷水を前記貯水槽内に噴出する攪拌用ノズルとしたものであり、前記攪拌用ノズルから噴出した水により前記貯水槽内が攪拌され、水温の均一化と、水の滞留による雑菌繁殖の防止とを図ることができる。また、冷却コイルの管外側では前記攪拌ノズルによる水流が発生するため管外側の熱伝達率が向上し、前記冷却コイルの冷却性能が向上する、という作用を有する。
【0014】
請求項4に記載の発明は、請求項1または請求項3に記載の発明において、貯水槽上部の給水口と水道口とを給水配管を介して接続した給水弁と、前記貯水槽底面部の排水口と外部排水口とを排水配管を介して接続した排水弁とからなり、所定時間毎に前記貯水槽内の水を入れ替える自動給排水装置を備えたものであり、定期的に前記貯水槽内の水を水道水に入れ替えることにより、前記貯水槽内の水質をより確実に、かつ人手をかけずに清浄に保持することができる。従って、冷蔵室内の空気及び被冷却収納物を常に清浄に保持することができる、とういう作用を有する。
【0015】
請求項5に記載の発明は、請求項1または請求項2に記載の発明において、さらに、紫外線発生装置による紫外線の発生及び停止を所定間隔で切り替える紫外線制御装置を備えたものであり、紫外線を常時発生させる場合に比べて消費電力の低減を図ると共に、前記紫外線発生装置の寿命を延ばすことができる、という作用を有する。
【0016】
請求項6に記載の発明は、請求項1から請求項5のいずれか一項に記載の発明において、保鮮庫本体の上部より貯蔵室、紫外線発生装置、貯水槽を配置し、貯水槽内に冷却コイルを設けたものであり、保鮮庫本体内に被冷却物の収納スペース、冷却装置、加湿装置、殺菌装置などを一体に収めることができ、省スペースでコンパクトな保鮮庫を提供できる、という作用を有する。
【0017】
【発明の実施の形態】
以下、本発明による保鮮庫の実施の形態について、図面を参照しながら説明する。
【0018】
(実施の形態1)
図1は、本発明の実施の形態1による保鮮庫の断面図である。
【0019】
図1において、21は保鮮庫の1形態としてのクローズドタイプのショーケースであり、22は冷蔵室に代表される貯蔵室(以下、冷蔵室22という)であり、冷蔵室22内の複数の棚23a,23b,23cの上には生野菜や果物の他、サラダなどの被冷却収納物24が保存される。
【0020】
25は貯水槽であり、冷蔵室22の近傍下方に設置されており、貯水量(水位)は給水弁30,排水弁32の開閉により所定量に保持されている。26は冷却コイルであり、貯水槽25内に配置され、貯水槽25内の水を所定温度(被冷却収納物の種類により約0℃〜10℃程度)に冷却保持する。27は噴霧装置であり、貯水槽25内の冷水をポンプ28を介して空気中に噴霧するもので、主にスプレーノズルが用いられる。
【0021】
29は撹拌装置であり、貯水槽25内の冷水をポンプ28を介して貯水槽25内に噴出するノズルが用いられる。
【0022】
34は紫外線発生装置であり、主に殺菌灯と呼ばれる紫外線ランプが用いられ、貯水槽25の水面上方に設けられている。この時、貯水槽25の水面には紫外線が照射されているため、貯水槽25内の水は紫外線により常に除菌処理された状態となっている。また、35は光触媒層であり、ステンレス板などの表面に酸化チタンなどの光触媒材料を固定処理したものが用いられ、紫外線発生装置34から発生した紫外線の照射両側面に設置されている。
【0023】
36はエリミネータであり、噴霧装置27から空気中に噴霧された冷水のなかの余剰水滴をメッシュ状フィルター等で捕捉して貯水槽25に戻し、余剰水滴が冷蔵室22内へ流出するのを防止する働きを持つ。37はファンであり、空気吸込口38から取り入れた空気を空気吹出口39から吹き出して冷蔵室22内の空気を循環させる。
【0024】
以上のように構成された保鮮庫について、以下その動作を説明する。
【0025】
ショーケース21の冷蔵室22内には、生野菜や果物の他、サラダなどの被冷却収納物24が保存されている。
【0026】
空気吸込口38から吸込まれた冷蔵室22内の空気は、貯水槽25の水面上方にて噴霧装置27により冷水を噴霧されて冷却・加湿されると共に、紫外線発生装置34による紫外線照射で除菌処理される。また、この時、空気中の雑菌や塵埃は、噴霧装置27から噴出した微細な水滴に捕捉されて空気が浄化され、低温・高湿の清浄空気が生成される。さらに、光触媒層35の表面近傍においては、光触媒の強力な酸化作用により、冷蔵室22内の野菜や果物の被冷却収納物の鮮度低下の原因となるエチレンガスの分解処理までもが可能となる。
【0027】
一方、空気中の雑菌や塵埃を捕捉した水滴は、光触媒層35の表面近傍において紫外線発生装置34による紫外線照射を受けて、光触媒の強力な酸化作用により除菌・分解処理された後に貯水槽25内に回収される。また、空気中の雑菌や塵埃を捕捉した水滴のうち貯水槽25内に直接回収された水滴は、紫外線発生装置34の紫外線照射を受けて除菌処理される。このように、貯水槽25内の冷水は、紫外線発生装置34により照射される紫外線と光触媒層35とで除菌・分解処理されるため、常に清浄な状態に保持されている。
【0028】
そして、噴霧装置27と紫外線発生装置34と光触媒層35とで冷却・加湿・除塵・除菌及びエチレンガス分解除去処理がなされた低温・高湿の清浄空気は、エリミネータ36で余剰水滴を除去された後に、ファン37により空気吹出口39から冷蔵室22内へと供給される。
【0029】
従って、冷蔵室22内の空気を野菜や果物の被冷却収納物24の保存に最適な低温高湿状態(温度0〜10℃程度,湿度90%程度以上)に保持できると共に、鮮度低下の原因となるエチレンガスも分解除去できるため、被冷却収納物24の鮮度を保持できる。
【0030】
また、光触媒の強力な酸化作用により、冷蔵室22内の臭いのもととなる有機物質をも分解することができるため、冷蔵室22内の脱臭及び防臭効果を得ることもできる。
【0031】
また、撹拌装置29により貯水槽25内が攪拌され、水温の均一化と、水の滞留による雑菌繁殖の防止とを図ることができる。また、さらに、冷却コイル26の管外側では攪拌装置29による水流が発生するため、管外側の熱伝達率が向上し、冷却コイル26の冷却性能が向上する。
【0032】
以上のように本実施の形態の保鮮庫は、冷蔵室22と、冷蔵室22の近傍に設けた貯水槽25と、貯水槽25内の水を所定温度に冷却保持する冷却コイル26と、貯水槽25内の冷水を空気中に噴霧する噴霧装置27と、貯水槽25内の冷水を攪拌する撹拌装置29と、冷蔵室22内の空気を循環させるファン37と、紫外線発生装置34と、紫外線照射面に設置された光触媒層35とからなる一体構造であり、紫外線発生装置34と光触媒層35とで除菌処理した水を空気中に噴霧して冷蔵室22内の冷却・加湿・除塵を行うだけでなく、空気中の雑菌やエチレンガスなどを除去分解できるため、冷蔵室22内の空気を野菜や果物の被冷却収納物24の保存に最適な低温高湿状態(温度0〜10℃程度,湿度90%程度以上)に保持でき、被冷却収納物24の鮮度を保持できる。また、撹拌装置29により貯水槽25内が攪拌され、水温の均一化と、水の滞留による雑菌繁殖の防止とを図ることができる。また、さらに、冷却コイル26の管外側では攪拌装置29による水流が発生するため、管外側の熱伝達率が向上し、冷却コイル26の冷却性能が向上する。
【0033】
また、ショーケース21本体内の上部より冷蔵室22、紫外線発生装置34、貯水槽25を配置し、貯水槽25内に冷却コイル26を設けたために、上下方向にコンパクトに収容でき、省スペースでコンパクトな一体型の保鮮庫を実現することができる。
【0034】
なお、本実施の形態において、攪拌装置29には貯水槽25内の冷水をポンプ28を介して貯水槽25内に噴出するノズルを用いたが、例えば貯水槽25の水中で羽根車を回転させるような方法を取っても良い。
【0035】
また、冷蔵室22は温度0〜10℃程度としているが、補助的な雰囲気冷却機能を追加するなどの設計を加味すれば、室温0℃以下のチルド温度域の貯蔵室に本技術を適用して、過冷却状態で循環させ一層の低温高湿保鮮効果を得ることも可能であるので、貯蔵室を必ずしも0℃以上の冷蔵室に限ることはない。
【0036】
(実施の形態2)
図2は、本発明の実施の形態2による保鮮庫の断面図である。
【0037】
図2において、40は貯水槽25の水面上方に設けられた給水口であり、41は貯水槽25の底面部に設けられた排水口である。給水口40と水道口42とは、給水弁30と給水配管31とを介して接続されている。また、排水口41と外部排水口43とは、排水弁32と排水配管33とを介して接続されている。44は自動給排水装置であり、給水弁30と排水弁32の開閉動作を制御して、貯水槽25内の水を定期的に入れ替えるものである。
【0038】
本実施の形態は、実施の形態1による保鮮庫に、さらに自動給排水装置44を設けたものである。
【0039】
自動給排水装置44による貯水槽25内の水の入れ替え動作の一例を説明する。通常は給水弁30,排水弁32は共に閉じられている。そして、貯水槽25内の水の交換時期となった時点でポンプ28が運転している場合にはポンプ28を一時停止した後に排水弁32を開く。貯水槽25内の水位はフロートスイッチ(特に図示しない)などにより検出しており、貯水槽25の排水が完了した時点で排水弁32が閉じ、給水弁30が開いて貯水槽25内に新しい水道水が給水される。そして、貯水槽25内の水位が所定水位になった時点で給水弁30が閉じ、ポンプ28の運転を再開する。このように、自動給排水装置44で貯水槽25内の水を定期的に新しい水道水に入れ替えることにより、貯水槽25内の水質をより確実に、かつ人手をかけずに清浄に保持することができる。従って、冷蔵室22内の空気及び被冷却収納物24を常に清浄に保持することができる。
【0040】
以上のように本実施の形態の保鮮庫は、貯水槽25上部の給水口40と水道口42とを給水配管31を介して接続した給水弁30と、貯水槽25底面部の排水口41と外部排水口43とを排水配管33を介して接続した排水弁32とからなり、所定時間毎に貯水槽25内の水を入れ替える自動給排水装置44を備えたものであり、定期的に貯水槽25内の水を水道水に入れ替えることにより、貯水槽25内の水質をより確実に、かつ人手をかけずに清浄に保持することができる。従って、冷蔵室22内の空気及び被冷却収納物24を常に清浄に保持することができる。
【0041】
(実施の形態3)
図3は、本発明の実施の形態3による保鮮庫の断面図である。
【0042】
本実施の形態は、実施の形態1または実施の形態2による保鮮庫において、紫外線発生装置34による紫外線の発生及び停止を所定間隔で切り替える紫外線制御装置45を備えたものであり、紫外線を常時発生させる場合に比べて消費電力の低減、即ち省エネを図ると共に、紫外線発生装置の寿命を延ばすことができる。
【0043】
【発明の効果】
以上説明したように請求項1に記載の発明は、貯蔵室の近傍に設けた貯水槽内の水を冷却保持する冷却コイルと、貯水槽内の冷水を空気中に噴霧する噴霧装置と、貯水槽内の冷水を攪拌する撹拌装置と、噴霧装置による冷水の噴霧雰囲気を介して貯蔵室内の空気を循環させるファンと、貯蔵室内の空気の循環経路に設けた紫外線発生装置と紫外線照射面に設置された光触媒層とからなるので、紫外線発生装置と光触媒層とで除菌処理した水を空気中に噴霧して貯蔵室内の冷却・加湿・除塵を行うとともに、空気中の雑菌やエチレンガスなどを除去分解することにより、貯蔵室内の空気を被冷却収納物の保存に最適な低温高湿状態に保持でき、被冷却収納物の鮮度を保持できる。
【0044】
また、攪拌装置による水流が発生するため冷却コイルの管外側熱伝達率が向上し、冷却コイルの冷却性能を高めることができる。
【0045】
また、請求項2に記載の発明は、請求項1に記載の発明において、紫外線発生装置を貯水槽の水面上方に設けたので、貯水槽内の貯溜水や空気中の雑菌などを補足した水滴のうち貯水槽に直接回収される水を紫外線照射により直接除菌処理できる。
【0046】
また、請求項3に記載の発明は、請求項1に記載の発明において、撹拌装置を、貯水槽内の冷水をポンプを介して前記貯水槽内に噴出する攪拌用ノズルとしたものであり、前記攪拌用ノズルから噴出した水により前記貯水槽内が攪拌され、水温の均一化と、水の滞留による雑菌繁殖の防止とを図ることができる。また、冷却コイルの管外側では前記攪拌ノズルによる水流が発生するため管外側の熱伝達率が向上し、前記冷却コイルの冷却性能が向上する。
【0047】
また、請求項4に記載の発明は、請求項1または請求項3に記載の発明において、貯水槽上部の給水口と水道口とを給水配管を介して接続した給水弁と、前記貯水槽底面部の排水口と外部排水口とを排水配管を介して接続した排水弁とからなり、所定時間毎に前記貯水槽内の水を入れ替える自動給排水装置を備えたものであり、定期的に前記貯水槽内の水を水道水に入れ替えることにより、前記貯水槽内の水質をより確実に、かつ人手をかけずに清浄に保持することができる。従って、冷蔵室内の空気及び被冷却収納物を常に清浄に保持することができる。
【0048】
また、請求項5に記載の発明は、請求項1または請求項2に記載の発明において、さらに、紫外線発生装置による紫外線の発生及び停止を所定間隔で切り替える紫外線制御装置を備えたものであり、紫外線を常時発生させる場合に比べて消費電力の低減を図ると共に、前記紫外線発生装置の寿命を延ばすことができる。
【0049】
また、請求項6に記載の発明は、請求項1から請求項5のいずれか一項に記載の発明において、保鮮庫本体の上部より貯蔵室、紫外線発生装置、貯水槽を配置し、貯水槽内に冷却コイルを設けたので、省スペースでコンパクトな保鮮庫を提供できる。
【図面の簡単な説明】
【図1】本発明による保鮮庫の実施の形態1の断面図
【図2】本発明による保鮮庫の実施の形態2の断面図
【図3】本発明による保鮮庫の実施の形態3の断面図
【図4】従来の保鮮庫の構成図
【符号の説明】
21 ショーケース(保鮮庫)
22 冷蔵室(貯蔵室)
25 貯水槽
26 冷却コイル
27 噴霧装置
29 攪拌装置
30 給水弁
31 給水配管
32 排水弁
33 排水配管
34 紫外線発生装置
35 光触媒層
37 ファン
40 給水口
41 排水口
42 水道口
43 外部排水口
44 自動給排水装置
45 紫外線制御装置
[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator for keeping freshness of vegetables and fruits.
[0002]
[Prior art]
As a conventional fresh storage, there is a high humidity refrigerator with a sterilizing function disclosed in Japanese Patent Application Laid-Open No. 11-30469.
[0003]
Hereinafter, the above-mentioned conventional fresh storage will be described with reference to the drawings.
[0004]
FIG. 4 is a configuration diagram of a conventional fresh food storage. In FIG. 4, reference numeral 1 denotes a high-humidity refrigerator with a sterilizing function, and inside the refrigerator compartment 2, fruits and vegetables 18 such as vegetables and fruits are stored. Further, near the ceiling in the refrigerator compartment 2, a shower section 3 for blowing out cold water, a filling 4, a collector 5 for collecting cold water showered, and a blower 6 are arranged. Reference numeral 7 denotes a water tank in which water is stored. The water tank 7 is connected to the shower section 3 via a supply pipe 9 and a cold water pump 10. The collecting device 5 is connected to the water tank 7 via a collecting pipe 11. An ice making coil 8 is arranged in the water tank 7. A chiller unit 14 is connected to the ice making coil 8 via a supply brine pipe 15 and a recovery brine pipe 16. An ozone generator 12 is connected to the water tank 7 via an ozone pipe 13.
[0005]
The operation of the fresh food store configured as described above will be described below.
[0006]
The brine cooled by the chiller unit 14 is circulated in the ice making coil 8 by the brine pump 17, so that the water in the water tank 7 is cooled and becomes cold water, and ice is generated on the outer periphery of the ice making coil 8. . The ozone generated by the ozone generator 12 is sent into the water tank 7 via the ozone pipe 13, and the cold water in the water tank 7 becomes ozone cold water.
[0007]
The ozone cold water in the water tank 7 is jetted from the shower unit 3 toward the filling 4 via the cold water pump 10 and the supply pipe 9. On the other hand, the air in the refrigerator compartment 2 is blown toward the filling 4 by the blower 6. In the filling 4, the air in the refrigerating compartment 2 blown by the blower 6 is cooled and humidified by coming into contact with ozone cold water spouted from the shower part 3, and is supplied into the refrigerating compartment 2. Further, the ozone cold water collected in the collecting device 5 provided below the filling 4 is returned to the water tank 7 via the collecting pipe 11.
[0008]
As described above, the ozone cold water is jetted into the refrigerator compartment 2 to cool and humidify the refrigerator compartment 2, so that the refrigerator compartment 2 is kept in a low-temperature and high-humidity state suitable for storing the fruits and vegetables 18. In addition, the action of ozone not only sterilizes the air in the refrigerator compartment 2 but also decomposes the ethylene gas discharged from the fruit and vegetable 18 and causes a decrease in freshness, so that the freshness of the fruit and vegetable 18 in the refrigerator compartment 2 is maintained. Can be.
[0009]
[Problems to be solved by the invention]
However, the above-mentioned conventional configuration requires a water tank 7, a chiller unit 14, an ozone generator 12, and the like in a space different from the refrigerator compartment 2, and has a drawback that the equipment becomes large. In particular, while ozone has a bactericidal action and an ethylene gas decomposing action, it is a highly toxic substance as can be seen from the fact that the upper limit of the gas phase ozone concentration is regulated to 0.1 ppm. Since it is difficult to control the ozone concentration, there is a drawback that if the ozone concentration increases for some reason such as a failure of the apparatus, it may adversely affect human health.
[0010]
The present invention solves the conventional problems, in addition to the functions of cooling, humidifying, and dust-removing air in a storage room such as a refrigerator room, and also has a sterilizing function and a function of removing and decomposing ethylene gas, and can improve the freshness of fruits and vegetables such as vegetables and fruits. An object of the present invention is to provide a compact refrigerator that can be held.
[0011]
[Means for Solving the Problems]
The invention according to claim 1 of the present invention provides a storage chamber, a water storage tank provided in the vicinity of the storage chamber, a cooling coil that cools and holds water in the water storage tank at a predetermined temperature, A spray device for spraying cold water into the air, a stirring device for stirring the cold water in the water storage tank, a fan for circulating the air in the storage room through a sprayed atmosphere of the cold water by the spray device, It consists of an ultraviolet ray generator provided in the air circulation path and a photocatalyst layer provided on the ultraviolet ray irradiating surface of the ultraviolet ray generator, and water sterilized by the ultraviolet ray generator and the photocatalyst layer is passed through the air. Not only cools, humidifies, and removes dust in the storage room, but also removes and decomposes bacteria and ethylene gas in the air, thereby reducing the air in the storage room to a low temperature optimal for storing stored objects to be cooled. Can be kept in high humidity It can hold the freshness of the object to be cooled accommodated article. Further, since a water flow is generated by the agitating device outside the pipe of the cooling coil, the heat transfer coefficient outside the pipe is improved, and the cooling performance of the cooling coil is improved.
[0012]
The invention according to claim 2 of the present invention is the invention according to claim 1, wherein the ultraviolet ray generating device is provided above the water surface of the water tank, and the bacteria in the water and air in the water tank are removed. It has the effect that the water directly collected in the water tank among the captured water droplets can be directly sterilized by irradiating the water surface of the water tank with ultraviolet rays by the ultraviolet ray generator.
[0013]
According to a third aspect of the present invention, in the first aspect of the present invention, the stirring device is a stirring nozzle for jetting cold water in a water storage tank into the water storage tank. The inside of the water storage tank is agitated by the water so that the water temperature can be made uniform and the propagation of various bacteria due to the accumulation of water can be prevented. Further, since a water flow is generated by the stirring nozzle outside the pipe of the cooling coil, the heat transfer coefficient outside the pipe is improved, and the cooling performance of the cooling coil is improved.
[0014]
The invention according to claim 4 is the invention according to claim 1 or claim 3, wherein a water supply valve connecting a water supply port and a water supply port at an upper part of the water storage tank via a water supply pipe, and a water supply valve at a bottom part of the water storage tank. A drain valve that connects a drain port and an external drain port via a drain pipe, and is provided with an automatic water supply / drain device that replaces water in the water tank at predetermined time intervals. By replacing the water with tap water, the water quality in the water storage tank can be maintained more reliably and without human intervention. Therefore, there is an effect that the air in the refrigerator compartment and the storage object to be cooled can always be kept clean.
[0015]
The invention according to claim 5 is the invention according to claim 1 or 2, further comprising an ultraviolet control device that switches generation and stop of ultraviolet light by the ultraviolet light generation device at predetermined intervals. This has the effect of reducing power consumption as compared with the case where the light is always generated, and extending the life of the ultraviolet ray generating device.
[0016]
According to a sixth aspect of the present invention, in the invention according to any one of the first to fifth aspects, a storage room, an ultraviolet ray generator, and a water storage tank are arranged from an upper portion of the fresh food storage main body, and the water storage tank is provided. It is equipped with a cooling coil, and can store the storage space for the object to be cooled, a cooling device, a humidifying device, a sterilization device, etc. in the freshness storage main body, and can provide a space-saving and compact freshness storage. Has an action.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a refrigerator according to the present invention will be described with reference to the drawings.
[0018]
(Embodiment 1)
FIG. 1 is a cross-sectional view of a freshener according to the first embodiment of the present invention.
[0019]
In FIG. 1, reference numeral 21 denotes a closed type showcase as one form of a fresh food storage, 22 denotes a storage room represented by a refrigerator (hereinafter, referred to as a refrigerator 22), and a plurality of shelves in the refrigerator 22. Stored items 24 to be cooled such as salads are stored on the tops 23a, 23b and 23c in addition to fresh vegetables and fruits.
[0020]
Reference numeral 25 denotes a water storage tank, which is installed below the vicinity of the refrigerator compartment 22, and the water storage amount (water level) is maintained at a predetermined amount by opening and closing the water supply valve 30 and the drain valve 32. Reference numeral 26 denotes a cooling coil, which is disposed in the water storage tank 25 and cools and holds the water in the water storage tank 25 at a predetermined temperature (about 0 ° C. to 10 ° C. depending on the type of the storage object to be cooled). Numeral 27 denotes a spray device which sprays cold water in the water storage tank 25 into the air via a pump 28, and mainly uses a spray nozzle.
[0021]
Reference numeral 29 denotes a stirring device, which uses a nozzle for jetting cold water in the water storage tank 25 into the water storage tank 25 via the pump 28.
[0022]
Reference numeral 34 denotes an ultraviolet ray generator, which mainly uses an ultraviolet ray lamp called a germicidal lamp, and is provided above the water surface of the water storage tank 25. At this time, since the water surface of the water storage tank 25 is irradiated with ultraviolet rays, the water in the water storage tank 25 is always in a state of being sterilized by the ultraviolet rays. Reference numeral 35 denotes a photocatalyst layer, which is obtained by fixing a photocatalyst material such as titanium oxide on the surface of a stainless steel plate or the like, and is provided on both sides of the irradiation of the ultraviolet ray generated from the ultraviolet ray generator 34.
[0023]
Reference numeral 36 denotes an eliminator, which captures excess water droplets in the cold water sprayed into the air from the spray device 27 with a mesh filter or the like and returns the same to the water storage tank 25 to prevent the excess water droplets from flowing into the refrigerator compartment 22. Have the function of doing. Reference numeral 37 denotes a fan, which blows out air taken in from an air suction port 38 from an air outlet 39 to circulate air in the refrigerator compartment 22.
[0024]
The operation of the fresh food store configured as described above will be described below.
[0025]
In the refrigerated room 22 of the showcase 21, in addition to fresh vegetables and fruits, stored objects 24 to be cooled such as salads are stored.
[0026]
The air in the refrigerating compartment 22 sucked from the air inlet 38 is sprayed with cold water by the spray device 27 above the water surface of the water storage tank 25 to be cooled and humidified. It is processed. At this time, various bacteria and dust in the air are captured by fine water droplets ejected from the spraying device 27 to purify the air, thereby producing clean air of low temperature and high humidity. Further, in the vicinity of the surface of the photocatalyst layer 35, the strong oxidizing action of the photocatalyst makes it possible to decompose ethylene gas, which causes a decrease in freshness of the cooled storage of vegetables and fruits in the refrigerator compartment 22. .
[0027]
On the other hand, water droplets trapping various bacteria and dust in the air are irradiated with ultraviolet rays by an ultraviolet ray generator 34 in the vicinity of the surface of the photocatalyst layer 35, and after being sterilized and decomposed by strong oxidizing action of the photocatalyst, the water tank 25 is discharged. Collected inside. In addition, of the water droplets that have captured various bacteria and dust in the air, the water droplets directly collected in the water storage tank 25 are subjected to the ultraviolet irradiation of the ultraviolet ray generator 34 to be subjected to the sterilization treatment. As described above, the cold water in the water storage tank 25 is sterilized and decomposed by the ultraviolet rays radiated by the ultraviolet ray generator 34 and the photocatalyst layer 35, and thus is always kept in a clean state.
[0028]
The clean, low-temperature, high-humidity air that has been subjected to cooling, humidification, dust removal, sterilization, and ethylene gas decomposition and removal processing by the spray device 27, the ultraviolet light generator 34, and the photocatalyst layer 35 is subjected to removal of excess water droplets by the eliminator 36. After that, the air is supplied from the air outlet 39 into the refrigerator compartment 22 by the fan 37.
[0029]
Therefore, the air in the refrigerator compartment 22 can be maintained in a low-temperature and high-humidity state (temperature of about 0 to 10 ° C., humidity of about 90% or more) that is optimal for storing the cooled storage items 24 of vegetables and fruits, and also causes a decrease in freshness. Can be decomposed and removed, the freshness of the stored object 24 can be maintained.
[0030]
In addition, the strong oxidizing action of the photocatalyst can also decompose the organic substance that causes odor in the refrigerator compartment 22, so that the deodorizing and deodorizing effects in the refrigerator compartment 22 can be obtained.
[0031]
Further, the inside of the water storage tank 25 is stirred by the stirring device 29, so that the water temperature can be made uniform and the germs can be prevented from growing due to the stagnation of water. Further, since a water flow is generated by the agitator 29 outside the tube of the cooling coil 26, the heat transfer coefficient outside the tube is improved, and the cooling performance of the cooling coil 26 is improved.
[0032]
As described above, the fresh storage according to the present embodiment includes a refrigeration room 22, a water storage tank 25 provided near the refrigeration room 22, a cooling coil 26 for cooling and maintaining water in the water storage tank 25 at a predetermined temperature, A spray device 27 for spraying the cold water in the tank 25 into the air, a stirring device 29 for stirring the cold water in the water storage tank 25, a fan 37 for circulating the air in the refrigerator compartment 22, an ultraviolet ray generator 34, It has an integrated structure consisting of a photocatalyst layer 35 provided on the irradiation surface, and sprays water sterilized by the ultraviolet ray generator 34 and the photocatalyst layer 35 into the air to cool, humidify, and remove dust in the refrigerator compartment 22. In addition to carrying out, it is possible to remove and decompose various bacteria and ethylene gas in the air. About 90% humidity). The freshness of the cooling storage material 24 can be held. Further, the inside of the water storage tank 25 is stirred by the stirring device 29, so that the water temperature can be made uniform and the germs can be prevented from growing due to the stagnation of water. Further, since a water flow is generated by the agitator 29 outside the tube of the cooling coil 26, the heat transfer coefficient outside the tube is improved, and the cooling performance of the cooling coil 26 is improved.
[0033]
In addition, since the refrigerator compartment 22, the ultraviolet ray generator 34, and the water storage tank 25 are arranged from the upper part in the main body of the showcase 21, and the cooling coil 26 is provided in the water storage tank 25, it can be compactly accommodated in the vertical direction, and the space can be saved. It is possible to realize a compact one-piece fresh food storage.
[0034]
In the present embodiment, a nozzle that jets cold water in the water storage tank 25 into the water storage tank 25 via the pump 28 is used as the stirring device 29, for example, the impeller is rotated in the water in the water storage tank 25. You may take such a method.
[0035]
The temperature of the refrigerating room 22 is about 0 to 10 ° C. However, if a design such as adding an auxiliary atmosphere cooling function is added, the present technology is applied to a storage room in a chilled temperature range of room temperature 0 ° C. or less. The storage room is not necessarily limited to a refrigeration room at 0 ° C. or higher because it can be circulated in a supercooled state to obtain a further low-temperature and high-humidity freshening effect.
[0036]
(Embodiment 2)
FIG. 2 is a sectional view of a freshener according to the second embodiment of the present invention.
[0037]
In FIG. 2, reference numeral 40 denotes a water supply port provided above the water surface of the water storage tank 25, and reference numeral 41 denotes a drainage port provided on the bottom surface of the water storage tank 25. The water supply port 40 and the water supply port 42 are connected via the water supply valve 30 and the water supply pipe 31. The drain port 41 and the external drain port 43 are connected via a drain valve 32 and a drain pipe 33. An automatic water supply / drainage device 44 controls the opening / closing operation of the water supply valve 30 and the drainage valve 32 to periodically replace the water in the water storage tank 25.
[0038]
In the present embodiment, an automatic water supply / drainage device 44 is further provided in the fresh food storage according to the first embodiment.
[0039]
An example of the operation of replacing the water in the water storage tank 25 by the automatic water supply / drainage device 44 will be described. Normally, both the water supply valve 30 and the drain valve 32 are closed. Then, when the pump 28 is operating at the time of replacing the water in the water storage tank 25, the drain valve 32 is opened after temporarily stopping the pump 28. The water level in the water storage tank 25 is detected by a float switch (not shown) or the like, and when the drainage of the water storage tank 25 is completed, the drain valve 32 is closed, the water supply valve 30 is opened, and the new water supply water is stored in the water storage tank 25. Water is supplied. Then, when the water level in the water storage tank 25 reaches the predetermined water level, the water supply valve 30 is closed, and the operation of the pump 28 is restarted. As described above, by automatically replacing the water in the water storage tank 25 with new tap water by the automatic water supply / drainage device 44, the water quality in the water storage tank 25 can be maintained more reliably and cleanly without human intervention. it can. Therefore, the air in the refrigerating compartment 22 and the storage object 24 to be cooled can be always kept clean.
[0040]
As described above, the fresh food storage of the present embodiment includes the water supply valve 30 that connects the water supply port 40 and the water supply port 42 at the upper part of the water storage tank 25 via the water supply pipe 31, and the drainage port 41 at the bottom part of the water storage tank 25. A drain valve 32 connected to an external drain port 43 via a drain pipe 33; and an automatic water supply / drainage device 44 for replacing water in the water storage tank 25 at predetermined time intervals. By replacing the internal water with tap water, the water quality in the water storage tank 25 can be maintained more reliably and without human intervention. Therefore, the air in the refrigerating compartment 22 and the storage object 24 to be cooled can be always kept clean.
[0041]
(Embodiment 3)
FIG. 3 is a cross-sectional view of a freshener according to Embodiment 3 of the present invention.
[0042]
In the present embodiment, the freshener according to the first embodiment or the second embodiment is provided with an ultraviolet controller 45 for switching the generation and stop of the ultraviolet light by the ultraviolet light generator 34 at a predetermined interval, and constantly generates the ultraviolet light. Compared with the case of reducing the power consumption, the power consumption can be reduced, that is, energy can be saved, and the life of the ultraviolet ray generator can be extended.
[0043]
【The invention's effect】
As described above, the invention according to claim 1 includes a cooling coil that cools and holds water in a water storage tank provided near a storage room, a spray device that sprays cold water in the water storage tank into the air, A stirrer that stirs the cold water in the tank, a fan that circulates the air in the storage room through the spraying atmosphere of the cold water by the sprayer, an ultraviolet ray generator that is installed in the circulation path of the air in the storage room, and an ultraviolet light irradiation surface Sprayed water into the air to cool, humidify, and remove dust in the storage room, as well as to remove bacteria and ethylene gas in the air. By removing and disassembling, the air in the storage room can be kept in a low-temperature and high-humidity state that is optimal for preserving the storage object, and the freshness of the object to be cooled can be maintained.
[0044]
In addition, since a water flow is generated by the stirring device, the heat transfer coefficient outside the tube of the cooling coil is improved, and the cooling performance of the cooling coil can be improved.
[0045]
According to a second aspect of the present invention, in the first aspect of the present invention, since the ultraviolet ray generating device is provided above the water surface of the water storage tank, water droplets supplementing the stored water in the water storage tank and various bacteria in the air. Among them, water directly collected in the water storage tank can be directly sterilized by ultraviolet irradiation.
[0046]
According to a third aspect of the present invention, in the first aspect of the present invention, the stirring device is a stirring nozzle for jetting cold water in the water tank into the water tank through a pump, The inside of the water storage tank is agitated by the water jetted from the agitating nozzle, so that the water temperature can be made uniform, and the propagation of various bacteria due to the accumulation of water can be achieved. In addition, since a water flow is generated by the stirring nozzle outside the tube of the cooling coil, the heat transfer coefficient outside the tube is improved, and the cooling performance of the cooling coil is improved.
[0047]
According to a fourth aspect of the present invention, in the first or third aspect of the present invention, a water supply valve is provided in which a water supply port at an upper part of the water storage tank and a water supply port are connected via a water supply pipe; A drain valve connected to a drain port of the section and an external drain port via a drain pipe, and provided with an automatic water supply / drainage device that replaces water in the water storage tank at predetermined time intervals. By replacing the water in the tank with tap water, the water quality in the water tank can be more reliably and cleanly maintained without human intervention. Therefore, the air in the refrigerator compartment and the storage object to be cooled can always be kept clean.
[0048]
The invention according to claim 5 is the invention according to claim 1 or 2, further comprising an ultraviolet control device that switches generation and stop of ultraviolet light by the ultraviolet light generation device at predetermined intervals, Power consumption can be reduced as compared with a case where ultraviolet rays are constantly generated, and the life of the ultraviolet ray generator can be extended.
[0049]
According to a sixth aspect of the present invention, in the invention according to any one of the first to fifth aspects, a storage room, an ultraviolet ray generator, and a water storage tank are arranged from an upper portion of the fresh food storage main body. Since a cooling coil is provided in the inside, a compact and fresh food storage can be provided in a small space.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of Embodiment 1 of a freshener according to the present invention. FIG. 2 is a cross-sectional view of Embodiment 2 of a freshener according to the present invention. FIG. 3 is a cross-section of Embodiment 3 of a freshener according to the present invention. FIG. 4 is a configuration diagram of a conventional fresh food store.
21 Showcase (fresh food store)
22 Refrigerator (storage room)
25 water storage tank 26 cooling coil 27 spraying device 29 stirring device 30 water supply valve 31 water supply pipe 32 drainage valve 33 drainage pipe 34 ultraviolet ray generator 35 photocatalyst layer 37 fan 40 water supply port 41 drainage port 42 water supply port 43 external drainage port 44 automatic water supply and drainage device 45 UV control device

Claims (6)

貯蔵室と、前記貯蔵室の近傍に設けた貯水槽と、前記貯水槽内の水を所定温度に冷却保持する冷却コイルと、前記貯水槽内の冷水を空気中に噴霧する噴霧装置と、前記貯水槽内の冷水を攪拌する撹拌装置と、前記噴霧装置による冷水の噴霧雰囲気を介して前記貯蔵室内の空気を循環させるファンと、前記貯蔵室内の空気の循環経路に設けた紫外線発生装置と前記紫外線発生装置の紫外線照射面に設置された光触媒層とからなる保鮮庫。A storage chamber, a water storage tank provided in the vicinity of the storage chamber, a cooling coil that cools and holds water in the water storage tank at a predetermined temperature, a spray device that sprays cold water in the water storage tank into the air, A stirrer that stirs cold water in the water storage tank, a fan that circulates the air in the storage chamber through a spray atmosphere of the cold water by the sprayer, an ultraviolet light generator that is provided in a circulation path of the air in the storage chamber, and A freshness store consisting of a photocatalyst layer installed on the UV irradiation surface of the UV generator. 紫外線発生装置を貯水槽の水面上方に設けた請求項1に記載の保鮮庫。The freshener according to claim 1, wherein the ultraviolet ray generator is provided above the water surface of the water storage tank. 撹拌装置は、貯水槽内の冷水を前記貯水槽内に噴出する攪拌用ノズルである請求項1に記載の保鮮庫。The freshness storage according to claim 1, wherein the stirring device is a stirring nozzle for jetting cold water in the water storage tank into the water storage tank. 貯水槽上部の給水口と水道口とを給水配管を介して接続した給水弁と、貯水槽底面部の排水口と外部排水口とを排水配管を介して接続した排水弁とからなり、所定時間毎に前記貯水槽内の水を入れ替える自動給排水装置を備えた請求項1または3に記載の保鮮庫。It consists of a water supply valve that connects the water supply port on the upper part of the water storage tank and the water supply port through a water supply pipe, and a drainage valve that connects the water discharge port on the bottom of the water storage tank and the external water discharge port through the water discharge pipe for a predetermined time. The fresh food storage according to claim 1 or 3, further comprising an automatic water supply / drainage device that replaces water in the water storage tank every time. 紫外線発生装置による紫外線の発生及び停止を所定間隔で切り替える紫外線制御装置を備えた請求項1または請求項2に記載の保鮮庫。3. The refrigeration storage according to claim 1 or 2, further comprising an ultraviolet control device that switches generation and stop of ultraviolet light by the ultraviolet light generation device at predetermined intervals. 保鮮庫本体の上部より貯蔵室、紫外線発生装置、貯水槽を配置し、貯水槽内に冷却コイルを設けた請求項1から請求項5のいずれか一項に記載の保鮮庫。The fresh food storage according to any one of claims 1 to 5, wherein a storage room, an ultraviolet ray generating device, and a water storage tank are arranged from an upper part of the fresh storage storage body, and a cooling coil is provided in the water storage tank.
JP2002161225A 2002-06-03 2002-06-03 Freshness keeping storage Pending JP2004003778A (en)

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Cited By (12)

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JP2007046892A (en) * 2005-07-14 2007-02-22 Matsushita Electric Ind Co Ltd Refrigerator
JP2007101033A (en) * 2005-10-03 2007-04-19 Matsushita Electric Ind Co Ltd Refrigerator
JP2007116932A (en) * 2005-10-26 2007-05-17 Matsushita Electric Ind Co Ltd Refrigerator
JP2007178082A (en) * 2005-12-28 2007-07-12 Matsushita Electric Ind Co Ltd Refrigerator
JP2007192539A (en) * 2004-07-22 2007-08-02 Matsushita Electric Ind Co Ltd Storage box and refrigerator
JP2007225277A (en) * 2004-07-22 2007-09-06 Matsushita Electric Ind Co Ltd Refrigerator
JP2008101840A (en) * 2006-10-19 2008-05-01 Matsushita Electric Ind Co Ltd Refrigerator
JP2015032632A (en) * 2013-07-31 2015-02-16 パナソニック株式会社 Solar cell cooling system, and control method of solar cell cooling system
CN109028708A (en) * 2018-08-16 2018-12-18 广西河池市康美环境科技设备股份有限公司 A kind of mulberry leaf moisturizing fresh-keeping system and its preservation method
WO2022102667A1 (en) * 2020-11-10 2022-05-19 株式会社Zero Food Evaporation heater
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007192539A (en) * 2004-07-22 2007-08-02 Matsushita Electric Ind Co Ltd Storage box and refrigerator
JP2007225277A (en) * 2004-07-22 2007-09-06 Matsushita Electric Ind Co Ltd Refrigerator
JP2007046892A (en) * 2005-07-14 2007-02-22 Matsushita Electric Ind Co Ltd Refrigerator
JP2007101033A (en) * 2005-10-03 2007-04-19 Matsushita Electric Ind Co Ltd Refrigerator
JP2007116932A (en) * 2005-10-26 2007-05-17 Matsushita Electric Ind Co Ltd Refrigerator
JP4591345B2 (en) * 2005-12-28 2010-12-01 パナソニック株式会社 refrigerator
JP2007178082A (en) * 2005-12-28 2007-07-12 Matsushita Electric Ind Co Ltd Refrigerator
JP2008101840A (en) * 2006-10-19 2008-05-01 Matsushita Electric Ind Co Ltd Refrigerator
JP2015032632A (en) * 2013-07-31 2015-02-16 パナソニック株式会社 Solar cell cooling system, and control method of solar cell cooling system
CN109028708A (en) * 2018-08-16 2018-12-18 广西河池市康美环境科技设备股份有限公司 A kind of mulberry leaf moisturizing fresh-keeping system and its preservation method
WO2022102667A1 (en) * 2020-11-10 2022-05-19 株式会社Zero Food Evaporation heater
TWI807477B (en) * 2020-11-10 2023-07-01 日商Zero Food股份有限公司 evaporative humidifier
WO2023112588A1 (en) * 2021-12-13 2023-06-22 パナソニックIpマネジメント株式会社 Food processing device and operation method of food processing device
CN116123798A (en) * 2022-11-11 2023-05-16 珠海格力电器股份有限公司 Humidification equipment, self-cleaning method and device thereof and household appliance

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