JP2009270796A - Refrigerator for business use - Google Patents

Refrigerator for business use Download PDF

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Publication number
JP2009270796A
JP2009270796A JP2008123444A JP2008123444A JP2009270796A JP 2009270796 A JP2009270796 A JP 2009270796A JP 2008123444 A JP2008123444 A JP 2008123444A JP 2008123444 A JP2008123444 A JP 2008123444A JP 2009270796 A JP2009270796 A JP 2009270796A
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Prior art keywords
drain
tray
drain water
evaporating
end opening
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JP2008123444A
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JP5219611B2 (en
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Ichihiro Harada
委千弘 原田
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Fukushima Galilei Co Ltd
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Fukushima Industries Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/144—Collecting condense or defrost water; Removing condense or defrost water characterised by the construction of drip water collection pans
    • F25D2321/1442—Collecting condense or defrost water; Removing condense or defrost water characterised by the construction of drip water collection pans outside a refrigerator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/145—Collecting condense or defrost water; Removing condense or defrost water characterised by multiple collecting pans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/146—Collecting condense or defrost water; Removing condense or defrost water characterised by the pipes or pipe connections

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a refrigerator for business use preventing clogging of an evaporation body within an evaporation pan to reduce labor on maintenance etc. <P>SOLUTION: The refrigerator for business use includes a drain pan 23 for receiving drain water from a refrigerator body 1 and with the evaporation pan 25 arranged downwardly from the drain pan 23 and evaporating drain water from the drain pan 23. The evaporation body 27 for absorbing and evaporating drain water is stored inside the evaporation pan 25, and an inverted V-shaped siphon tube 29 for sending the drain water within the drain pan 23 to the evaporation pan 25 is arranged on a left wall 23a of the drain pan 23. In the siphon tube 29, a lower end opening 29a on one side opened within the drain pan 23 faces the bottom face of the drain pan 23 leaving a predetermined gap, and a lower end opening 29b on the other side opened outside the drain pan 23 faces the bottom face of the evaporation pan 25. The lower end opening 29a on one side of the siphon tube 29 is provided in the position higher than that of the lower end opening 29b on the other side. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、霜取り動作または清掃等によって冷蔵庫本体に生じたドレン水を蒸発皿で蒸発させるようにした業務用冷蔵庫に関する。   The present invention relates to a commercial refrigerator in which drain water generated in a refrigerator main body by defrosting operation or cleaning is evaporated in an evaporating dish.

この種の業務用冷蔵庫としては、例えば特許文献１に示すものが挙げられる。そこでは、冷蔵庫本体から排出されたドレン水を受け止める排水受皿と、排水受皿よりも下方に配置されて排水受皿から溢れ出たドレン水を受け止める溜水容器と、溜水容器から溢れ出たドレン水を受け止めて蒸発させる蒸発皿とを有している。また、蒸発皿内には、ドレン水を吸収して蒸発させるための不織布等からなる蒸発体が収容されている。   As this type of commercial refrigerator, for example, the one shown in Patent Document 1 can be cited. There, a drain pan that catches drain water discharged from the refrigerator body, a reservoir that is placed below the drain pan and catches drain water that overflows from the drain pan, and drain water that overflows from the reservoir And an evaporating dish for receiving and evaporating. Moreover, the evaporating body made of a nonwoven fabric or the like for absorbing and evaporating the drain water is accommodated in the evaporating dish.

特開２００７−３３３２４８号公報（図１−２）JP 2007-333248 A (FIGS. 1-2)

特許文献１に示す業務用冷蔵庫では、排水受皿内のドレン水は水面側から溜水容器に流出し、溜水容器内のドレン水も水面側から蒸発皿に流出する。このため、ドレン水と共に冷蔵庫本体から排出されて排水受皿内のドレン水の水面に浮かんでいる塵埃は、溜水容器を介して蒸発皿に流れ込む。かかる塵埃がドレン水と共に蒸発皿内の蒸発体に吸収され、蒸発体が目詰まりを生じる。この場合、蒸発体の早期の交換等のメンテナンスが必要となることが避けられず、その交換等に手間や費用が掛かる。   In the commercial refrigerator shown in Patent Document 1, the drain water in the drainage tray flows out from the water surface to the reservoir, and the drain water in the reservoir also flows out from the water to the evaporation tray. For this reason, the dust discharged from the refrigerator main body together with the drain water and floating on the surface of the drain water in the drain pan is flown into the evaporating dish through the water reservoir. Such dust is absorbed by the evaporation body in the evaporation dish together with the drain water, and the evaporation body is clogged. In this case, it is inevitable that maintenance such as early replacement of the evaporator is necessary, and the replacement and the like take time and cost.

本発明は、以上のような問題を解決するためになされたものであり、蒸発皿内の蒸発体の目詰まりを生じ難くして、メンテナンスの手間等を低減できる業務用冷蔵庫を提供することを目的とする。   The present invention has been made to solve the above-described problems, and provides a commercial refrigerator that can reduce clogging of an evaporator in an evaporating dish and reduce maintenance labor and the like. Objective.

本発明は、冷蔵庫本体１から排出されたドレン水を受け止める排水受皿２３と、排水受皿２３よりも下方に配置されて排水受皿２３から送られてきたドレン水を蒸発させる蒸発皿２５とを備える業務用冷蔵庫を対象とする。そして、本発明では、蒸発皿２５内に、ドレン水を吸収して蒸発させるための蒸発体２７が収容されており、排水受皿２３の側壁２３ａに、排水受皿２３内のドレン水を蒸発皿２５に送るためのサイフォン管２９が配置されている。サイフォン管２９は、その両端が下向きに指向する逆Ｕ字状を呈しており、排水受皿２３内で開口する一方側の下端開口２９ａが、排水受皿２３の底面に対して所定間隔をあけて臨んでおり、排水受皿２３外で開口する他方側の下端開口２９ｂが、蒸発皿２５の底面に臨んでいる。サイフォン管２９の一方側の下端開口２９ａが、他方側の下端開口２９ｂよりも高い位置に設けられていることを特徴とする。   The present invention includes a drainage tray 23 that catches drain water discharged from the refrigerator body 1 and an evaporating tray 25 that is disposed below the drainage tray 23 and evaporates drain water sent from the drainage tray 23. For refrigerators. In the present invention, an evaporation body 27 for absorbing and evaporating drain water is accommodated in the evaporating dish 25, and the drain water in the drain receiving dish 23 is stored in the evaporating dish 25 on the side wall 23 a of the drain receiving dish 23. A siphon tube 29 for sending to is arranged. The siphon tube 29 has an inverted U shape whose both ends are directed downward, and a lower end opening 29a on one side that opens in the drainage tray 23 faces the bottom surface of the drainage tray 23 with a predetermined interval. The lower end opening 29 b on the other side that opens outside the drainage tray 23 faces the bottom surface of the evaporating dish 25. The lower end opening 29a on one side of the siphon tube 29 is provided at a position higher than the lower end opening 29b on the other side.

冷蔵庫本体１内に設けた収容室２が、冷却器１２によって冷却されるようになっており、ガス状態で高温高圧に圧縮されたのちに液化された冷媒が冷却器１２に送られることで、該冷媒が冷却器１２で気化して、その気化熱で冷却器１２が冷却されるようになっている。そして、蒸発皿２５に、前記圧縮された冷媒が通るパイプ３６が配置されているものとすることができる。   The storage chamber 2 provided in the refrigerator main body 1 is cooled by the cooler 12, and the refrigerant liquefied after being compressed to a high temperature and high pressure in a gas state is sent to the cooler 12. The refrigerant is vaporized by the cooler 12, and the cooler 12 is cooled by the heat of vaporization. A pipe 36 through which the compressed refrigerant passes can be arranged in the evaporating dish 25.

蒸発皿２５の下方に、排水処理皿２６が配置されており、排水処理皿２６に、蒸発皿２５から溢れ出たドレン水が貯留されるものとすることができる。   A drainage treatment dish 26 is disposed below the evaporation dish 25, and drain water overflowing from the evaporation dish 25 can be stored in the wastewater treatment dish 26.

排水処理皿２６内に、ドレン水を吸収して蒸発させるための蒸発体２７が収容されているものとすることができる。   In the waste water treatment tray 26, an evaporator 27 for absorbing and evaporating the drain water can be accommodated.

本発明においては、排水受皿２３内のドレン水の水面Ｓが、少なくともサイフォン管２９の一方側の下端開口２９ａよりも高い位置であるサイフォン管２９の中空部の下端よりも高くなると、排水受皿２３内のドレン水が、サイフォン管２９の一方側の下端開口２９ａから吸い込まれて蒸発皿２５に流れ出す。そして、この吸い込みの開始後に排水受皿２３内のドレン水の水面Ｓが、サイフォン管２９の一方側の下端開口２９ａよりも低くなると、サイフォン管２９による排水受皿２３内のドレン水の吸い込みが停止する。   In the present invention, when the water level S of the drain water in the drainage tray 23 is higher than at least the lower end of the hollow portion of the siphon tube 29 that is higher than the lower end opening 29a on one side of the siphon tube 29, the drainage tray 23. The drain water inside is sucked from the lower end opening 29 a on one side of the siphon tube 29 and flows out to the evaporating dish 25. Then, when the water surface S of the drain water in the drainage tray 23 becomes lower than the lower end opening 29a on one side of the siphon tube 29 after the start of the suction, the suction of the drain water in the drain tray 23 by the siphon tube 29 is stopped. .

つまり、サイフォン管２９は、前記水面Ｓよりも下側のドレン水を一方側の下端開口２９ａから吸い込むことになる。このため、排水受皿２３内のドレン水の水面Ｓに浮いている塵埃等が、ドレン水と共にサイフォン管２９に吸い込まれることが低減される。また、サイフォン管２９は、一方側の下端開口２９ａよりも低い排水受皿２３の底部分にドレン水を残した状態でドレン水の吸い込みを停止するので、排水受皿２３の底に沈んでいる塵埃等をドレン水と共に吸い込むことも低減される。   That is, the siphon tube 29 sucks the drain water below the water surface S from the lower end opening 29a on one side. For this reason, it is reduced that the dust etc. which floats on the water surface S of the drain water in the drain pan 23 are sucked into the siphon tube 29 together with the drain water. Further, the siphon tube 29 stops the suction of the drain water while leaving the drain water at the bottom portion of the drainage tray 23 lower than the lower end opening 29a on one side, so that dust sinking at the bottom of the drainage tray 23, etc. Inhalation with drain water is also reduced.

すなわち、蒸発皿２５には、塵埃等を除去した状態のドレン水が送られることになる。したがって、前記塵埃等が蒸発皿２５内の蒸発体２７に付着することが抑えられ、塵埃等の付着によって蒸発体２７が目詰まりしてドレン水を吸収し難くなることが抑えられる。これによって、蒸発体２７によるドレン水の吸収蒸発の効果を長期間維持することができ、蒸発体２７の清掃および交換等のメンテナンスのための手間や費用が軽減される。   That is, drain water in a state where dust and the like are removed is sent to the evaporating dish 25. Accordingly, it is possible to suppress the dust and the like from adhering to the evaporation body 27 in the evaporating dish 25, and it is possible to prevent the evaporation body 27 from being clogged due to the attachment of dust and the like and difficult to absorb drain water. As a result, the effect of absorbing and evaporating drain water by the evaporator 27 can be maintained for a long period of time, and labor and cost for maintenance such as cleaning and replacement of the evaporator 27 can be reduced.

かかる蒸発皿２５に、高温高圧に圧縮された冷媒が通るパイプ３６が配置されると、その冷媒の熱で蒸発皿２５が温められて、ドレン水を迅速に蒸発させることができる。その分だけ蒸発皿２５の容量を大きくしたり蒸発体２７を大きくしなくても、多量のドレン水を蒸発皿２５および蒸発体２７で蒸発させることができる。しかも前述のように蒸発体２７が目詰まりし難いことで、蒸発体２７は、多量のドレン水であってもそのドレン水の吸収蒸発の効果を長期間維持することができる。また、ドレン水が迅速に蒸発するので、ドレン水が業務用冷蔵庫の外部に溢れ出ることが抑えられる。   When the pipe 36 through which the refrigerant compressed at high temperature and high pressure passes is disposed in the evaporating dish 25, the evaporating dish 25 is warmed by the heat of the refrigerant, and the drain water can be quickly evaporated. A large amount of drain water can be evaporated by the evaporating dish 25 and the evaporating body 27 without increasing the capacity of the evaporating dish 25 or enlarging the evaporating body 27 accordingly. Moreover, since the evaporator 27 is not easily clogged as described above, the evaporator 27 can maintain the effect of absorbing and evaporating the drain water for a long time even if it is a large amount of drain water. Moreover, since drain water evaporates rapidly, it can suppress that drain water overflows the exterior of a commercial refrigerator.

蒸発皿２５の下方の排水処理皿２６に蒸発皿２５から溢れ出たドレン水が貯留されると、冷蔵庫本体１からドレン水が極めて多量に排出されて、蒸発皿２５で貯留することが困難になっても、そのドレン水を排水処理皿２６が貯留することで、ドレン水が業務用冷蔵庫の外部に溢れ出ることが確実に抑えられる。   When the drain water overflowing from the evaporating dish 25 is stored in the drainage treatment dish 26 below the evaporating dish 25, a very large amount of drain water is discharged from the refrigerator body 1, making it difficult to store in the evaporating dish 25. Even if it becomes, since the drainage treatment tray 26 stores the drain water, it is possible to reliably suppress the drain water from overflowing outside the commercial refrigerator.

排水処理皿２６内に、ドレン水を吸収して蒸発させるための蒸発体２７が収容されていると、蒸発体２７によって排水処理皿２６内のドレン水の蒸発が促進され、その分だけドレン水が業務用冷蔵庫の外部に溢れ出ることがより確実に抑えられる。   If the evaporation body 27 for absorbing and evaporating the drain water is accommodated in the waste water treatment tray 26, the evaporation body 27 promotes the evaporation of the drain water in the waste water treatment tray 26, and the drain water correspondingly. Is more reliably prevented from overflowing outside the commercial refrigerator.

本発明に係る業務用冷蔵庫を適用したオープンショーケースの実施形態を図１ないし図１０に基づいて説明する。図２および図３においてオープンショーケースには、冷蔵庫本体１内に設けられて前面（図３では左側）が開口する陳列室（収容室）２と、該陳列室２内において上下複数段に配置する商品陳列用の陳列棚３と、陳列室２内を冷却する冷却手段４とを有する。   An embodiment of an open showcase to which a commercial refrigerator according to the present invention is applied will be described with reference to FIGS. 2 and 3, the open showcase is provided in the refrigerator main body 1 with a display chamber (container chamber) 2 having an open front surface (left side in FIG. 3) and a plurality of upper and lower stages in the display chamber 2. A display shelf 3 for displaying products and a cooling means 4 for cooling the inside of the display chamber 2.

冷却手段４は、陳列室２の上側前部に設けてあって下向きに開口する空気吹出口５と、陳列室２の下側前部に設けてあって上向きに開口する空気吸込口６と、冷蔵庫本体１の外周壁７と陳列室２の内壁９との間に設けられて冷気を陳列室２内へ循環させるための循環路１０と、循環路１０内に配置された送風ファン１１および熱交換器（冷却器）１２とからなる。循環路１０は、側面視でコ字状に折れ曲がっている。循環路１０の下端部の前端が空気吸込口６に繋がっており、循環路１０の上端部の前端側が空気吹出口５に繋がっている。冷蔵庫本体１の外周壁７は、断熱構造になっている。   The cooling means 4 is provided at the upper front portion of the display chamber 2 and opens downward, the air outlet 5 provided at the lower front portion of the display chamber 2 and opened upward, A circulation path 10 provided between the outer peripheral wall 7 of the refrigerator main body 1 and the inner wall 9 of the display chamber 2 for circulating cold air into the display chamber 2, a blower fan 11 disposed in the circulation path 10 and heat And an exchanger (cooler) 12. The circulation path 10 is bent in a U shape in a side view. The front end of the lower end portion of the circulation path 10 is connected to the air suction port 6, and the front end side of the upper end portion of the circulation path 10 is connected to the air outlet 5. The outer peripheral wall 7 of the refrigerator main body 1 has a heat insulating structure.

そして、送風ファン１１の送風作用によって、熱交換器１２で冷却された冷気が空気吹出口５から陳列室２内へ下向きに吹き出し、陳列室２内の空気が空気吸込口６から循環路１０内へ吸い込まれて熱交換器１２に循環する。これにて、陳列室２の前面にエアーカーテンが形成されるとともに、陳列室２内に冷気が供給されて陳列室２内が冷却され、各陳列棚部３上の商品が冷却される。   And by the ventilation effect | action of the ventilation fan 11, the cold air cooled with the heat exchanger 12 blows out in the display chamber 2 downward from the air blower outlet 5, and the air in the display chamber 2 is in the circulation path 10 from the air suction inlet 6. And is circulated to the heat exchanger 12. Thus, an air curtain is formed on the front surface of the display chamber 2, and cool air is supplied into the display chamber 2 to cool the inside of the display chamber 2, thereby cooling the products on the display shelves 3.

冷蔵庫本体１の下部に設けた機械室１３内には、図８に示すように、冷却手段４の一部としての圧縮機１５と凝縮器１６とが配置されており、これらは冷媒循環用パイプを介して熱交換器１２に接続される。そして、ガス状態の冷媒が圧縮機１５で高温高圧に圧縮されたのちに、凝縮器１６で液化される。その液化状態の冷媒が、熱交換器１２で気化してその気化熱で熱交換器１２を冷却する。気化後の冷媒は、圧縮機１５に再び送られる。凝縮器１６の後ろ側には、左右一対の冷却ファン１７・１７が配置される。陳列室２の天井面等には、照明具（不図示）が配置されており、冷蔵庫本体１の上部前面には、図２および図３に示すように、陳列室２内の温度等を表示するための表示部１８が配置される。   As shown in FIG. 8, a compressor 15 and a condenser 16 as a part of the cooling means 4 are arranged in a machine room 13 provided in the lower part of the refrigerator main body 1, and these are refrigerant circulation pipes. Is connected to the heat exchanger 12. The refrigerant in the gaseous state is compressed to high temperature and high pressure by the compressor 15 and then liquefied by the condenser 16. The liquefied refrigerant is vaporized by the heat exchanger 12, and the heat exchanger 12 is cooled by the heat of vaporization. The vaporized refrigerant is sent to the compressor 15 again. On the rear side of the condenser 16, a pair of left and right cooling fans 17, 17 are arranged. Illuminators (not shown) are arranged on the ceiling surface of the display room 2 and the temperature inside the display room 2 is displayed on the upper front surface of the refrigerator body 1 as shown in FIGS. A display unit 18 is arranged for this purpose.

循環路１０の下面には、冷蔵庫本体１の熱交換器１２の霜取り動作および陳列室２内の清掃等によって生じたドレン水を機械室１３に排出するための排水口２０が設けられる。排水口２０には、下向へに伸びる排水管２１が接続される。排水管２１は、塩化ビニル等の可撓性を有する合成樹脂からなり、前記ドレン水を機械室１３内に配置した排水蒸発機構２２に導くようになっている。循環路１０の下面は、排水口２０に向けて下り傾斜になっている。   On the lower surface of the circulation path 10, a drain port 20 is provided for discharging drain water generated by the defrosting operation of the heat exchanger 12 of the refrigerator body 1 and cleaning the display chamber 2 to the machine room 13. A drain pipe 21 extending downward is connected to the drain port 20. The drain pipe 21 is made of a synthetic resin having flexibility such as vinyl chloride, and guides the drain water to a drainage evaporation mechanism 22 disposed in the machine chamber 13. The lower surface of the circulation path 10 is inclined downward toward the drain port 20.

排水蒸発機構２２は、図４および図６に示すように、冷蔵庫本体１から排水管２１を介して排出されたドレン水を受け止める排水受皿２３と、排水受皿２３よりも下方に配置されて排水受皿２３から送られてきたドレン水を蒸発させる蒸発皿２５と、蒸発皿２５の下方に配置されて蒸発皿２５から溢れ出たドレン水を貯留するとともに蒸発させる排水処理皿２６とを備えている。排水管２１の下端開口は、排水受皿２３の底面に臨んでいる。   As shown in FIGS. 4 and 6, the drainage evaporation mechanism 22 includes a drainage tray 23 that receives drain water discharged from the refrigerator body 1 through the drainage pipe 21, and a drainage tray that is disposed below the drainage tray 23. 23, an evaporating dish 25 for evaporating the drain water sent from 23, and a drainage treatment dish 26 for storing and evaporating drain water that is disposed below the evaporating dish 25 and overflows from the evaporating dish 25. The lower end opening of the drain pipe 21 faces the bottom surface of the drain tray 23.

排水受皿２３と蒸発皿２５と排水処理皿２６とは、上面が開口する四角形の皿状にそれぞれ形成される。蒸発皿２５は、ほぼ全体が排水受皿２３よりも左側になるように配置され、排水処理皿２６は、その大半が蒸発皿２５よりも右側になるように配置される。排水受皿２３と排水処理皿２６とは、左右方向よりも前後方向に長くなっており、蒸発皿２５は、前後方向よりも左右方向に長くなっている。蒸発皿２５と排水処理皿２６とには、ドレン水を吸収して蒸発させるための一または複数個の蒸発体２７がそれぞれ収容されている。   The drainage tray 23, the evaporation tray 25, and the wastewater treatment tray 26 are each formed in a square dish shape whose upper surface is open. The evaporating dish 25 is arranged so that substantially the whole is on the left side of the drainage tray 23, and the wastewater treatment dish 26 is arranged so that most of it is on the right side of the evaporating dish 25. The drainage tray 23 and the wastewater treatment tray 26 are longer in the front-rear direction than the left-right direction, and the evaporating dish 25 is longer in the left-right direction than the front-rear direction. The evaporating dish 25 and the waste water treatment dish 26 accommodate one or a plurality of evaporating bodies 27 for absorbing and evaporating the drain water, respectively.

蒸発体２７は、吸水性に優れた不織布等からなり、複数枚の四角形の蒸発板２７ａを立てた状態で所定間隔をあけて並べてある。各蒸発体２７の上部は、前記皿２５・２６よりも上側に突出しており、これにて蒸発体２７全体がドレン水に浸からないようになっている。蒸発皿２５内の蒸発体２７は、その左側上部が切り欠かれており、排水処理皿２６内の蒸発体２７は、図７に示すように、その後側上部が切り欠けられている。   The evaporator 27 is made of a nonwoven fabric or the like having excellent water absorption, and is arranged with a predetermined interval in a state where a plurality of square evaporation plates 27a are erected. The upper part of each evaporation body 27 protrudes above the dishes 25 and 26, so that the entire evaporation body 27 is prevented from being immersed in drain water. The upper left side of the evaporator 27 in the evaporating dish 25 is notched, and the upper part of the evaporator 27 in the waste water treatment dish 26 is notched as shown in FIG.

図１および図４に示すように、排水受皿２３の前後左右の四側壁のうち、左側壁２３ａの後端部（図７参照）には、排水受皿２３内のドレン水を蒸発皿２５に送るための逆Ｕ字状のサイフォン管２９が配置されている。サイフォン管２９は、その左右両端が下向きに指向する逆Ｕ字状を呈しており、排水受皿２３内において湾曲する管部分の下端で開口する一方側の下端開口２９ａが、排水受皿２３の底面に対して所定間隔をあけて臨んでおり、排水受皿２３外において湾曲する管部分の下端で開口する他方側の下端開口２９ｂが、蒸発皿２５内の蒸発体２７の切り欠き部分の上面２８に対して所定間隔をあけて臨んでいる。つまり、サイフォン管２９の他方側の下端開口２９ｂは、蒸発体２７を介して蒸発皿２５の底面に臨んでいる。サイフォン管２９の一方側の下端開口２９ａは、サイフォン管２９の他方側の下端開口２９ｂよりも高い位置に設けられる。   As shown in FIGS. 1 and 4, the drain water in the drainage tray 23 is sent to the evaporation tray 25 at the rear end portion (see FIG. 7) of the left side wall 23 a among the four side walls on the front, rear, left and right of the drainage tray 23. For this purpose, an inverted U-shaped siphon tube 29 is arranged. The siphon tube 29 has an inverted U shape in which both left and right ends are directed downward, and a lower end opening 29 a on one side that opens at the lower end of the tube portion curved in the drain pan 23 is formed on the bottom surface of the drain pan 23. A lower end opening 29b on the other side opened at a lower end of the pipe portion curved outside the drainage tray 23 with respect to the upper surface 28 of the cutout portion of the evaporator 27 in the evaporation tray 25. And face at a predetermined interval. That is, the lower end opening 29 b on the other side of the siphon tube 29 faces the bottom surface of the evaporating dish 25 through the evaporator 27. The lower end opening 29 a on one side of the siphon tube 29 is provided at a position higher than the lower end opening 29 b on the other side of the siphon tube 29.

そして、図１に示すように、排水受皿２３内にドレン水が溜まって、少なくとも該ドレン水の水面Ｓがサイフォン管２９の中空部の下端よりも高くなると、排水受皿２３内のドレン水が、サイフォン管２９の一方側の下端開口２９ａに吸い込まれて蒸発皿２５に向けて流れ出す。排水受皿２３内のドレン水の水面Ｓが、サイフォン管２９の一方側の下端開口２９ａよりも低くなると、サイフォン管２９による排水受皿２３内のドレン水の吸い込みが停止する。   And as shown in FIG. 1, when drain water accumulates in the drain pan 23 and at least the water surface S of the drain water becomes higher than the lower end of the hollow portion of the siphon tube 29, the drain water in the drain pan 23 is It is sucked into the lower end opening 29 a on one side of the siphon tube 29 and flows out toward the evaporating dish 25. When the water level S of the drain water in the drain pan 23 becomes lower than the lower end opening 29a on one side of the siphon tube 29, the suction of the drain water in the drain pan 23 by the siphon tube 29 is stopped.

排水受皿２３の底面とサイフォン管２９の一方側の下端開口２９ａとの高低差Ｈ１は１０ｍｍ、サイフォン管２９の一方側の下端開口２９ａとサイフォン管２９の中空部の上端との高低差Ｈ２は１５ｍｍである。サイフォン管２９の内径寸法は４．５〜６．８ｍｍである。サイフォン管２９の左右の下端開口２９ａ・２９ｂの高低差は１５ｍｍである。   The height difference H1 between the bottom surface of the drainage tray 23 and the lower end opening 29a on one side of the siphon tube 29 is 10 mm, and the height difference H2 between the lower end opening 29a on one side of the siphon tube 29 and the upper end of the hollow portion of the siphon tube 29 is 15 mm. It is. The inner diameter of the siphon tube 29 is 4.5 to 6.8 mm. The height difference between the left and right lower end openings 29a and 29b of the siphon tube 29 is 15 mm.

排水受皿２３の左側壁２３ａの上端、且つサイフォン管２９の上側となる箇所には、図１および図５に示すように、排水受皿２３内にドレン水が過剰に溜まったときに該ドレン水の過剰分を蒸発皿２５に流し出すための案内部３０が形成される。案内部３０は、排水受皿２３の左側壁２３ａから外方へ下り傾斜する舌片３０ａと、舌片３０ａの基端上側に形成される排水部３０ｂとからなる。そして、前記過剰分のドレン水が、舌片３０ａを伝わって該舌片３０ａの先端側から蒸発皿２５内に流れ落ちる。舌片３０ａは、排水受皿２３の左側壁２３ａの上端部に前後一対の切れ目を設け、該切れ目間の側壁部分を外側に折り曲げることで形成される。舌片３０ａを除いた排水受皿２３の左側壁２３ａの上端部に排水部３０ｂが形成される。   As shown in FIG. 1 and FIG. 5, when the drain water is excessively accumulated in the drain tray 23, the drain water is placed at the upper end of the left side wall 23 a of the drain tray 23 and on the upper side of the siphon tube 29. A guide portion 30 is formed for pouring the excess into the evaporating dish 25. The guide part 30 consists of the tongue piece 30a which inclines and inclines outward from the left side wall 23a of the drainage receptacle 23, and the drainage part 30b formed in the base end upper side of the tongue piece 30a. Then, the excessive drain water flows through the tongue piece 30a and flows down into the evaporating dish 25 from the tip side of the tongue piece 30a. The tongue piece 30a is formed by providing a pair of front and rear cuts at the upper end of the left side wall 23a of the drain pan 23 and bending the side wall portion between the cuts outward. A drainage portion 30b is formed at the upper end of the left side wall 23a of the drainage tray 23 excluding the tongue piece 30a.

排水受皿２３の前側壁２３ｂは、図５に示す脱着金具３１によって機械室１３の上面に着脱可能に取り付けられる。脱着金具３１は、平板状のつまみ３１ａと、つまみ３１ａの基端（図５では右側）に設けた円盤状の鍔部３１ｂと、鍔部３１ｂにおいてつまみ３１ａの配置面とは反対側の面に設けた一対のフック部３１ｃ・３１ｃとからなる。両フック部３１ｃ・３１ｃは、その先端の鉤３４・３４が互いに逆方向に向く姿勢で、所定の間隔をあけて鍔部３１ｂに設けられ、フック部３１ｃ・３１ｃどうしが接近する方向に弾性変形可能になっている。   The front side wall 23b of the drain pan 23 is detachably attached to the upper surface of the machine room 13 by a detachable fitting 31 shown in FIG. The detachable metal fitting 31 has a flat knob 31a, a disc-shaped flange 31b provided at the base end (right side in FIG. 5) of the knob 31a, and a surface opposite to the arrangement surface of the knob 31a in the flange 31b. It consists of a pair of provided hook parts 31c and 31c. The hook portions 31c and 31c are provided in the flange portion 31b with a predetermined interval in a posture in which the hooks 34 and 34 at the tips thereof are opposite to each other, and are elastically deformed in a direction in which the hook portions 31c and 31c approach each other. It is possible.

そして、脱着金具３１は、排水受皿２３の前側壁２３ｂの外側から該前側壁２３ｂの上部に設けた丸孔２４にフック部３１ｃ・３１ｃを通すことで、排水受皿２３の前側壁２３ｂに対して回転可能に取り付けられる。脱着金具３１の鍔部３１ｂの外径は、丸孔２４の径よりも大きくなっていて、つまみ３１ａが丸孔２４内に入り込まないようにしてある。   The detachable metal fitting 31 passes the hook portions 31c and 31c from the outside of the front side wall 23b of the drainage tray 23 to the round hole 24 provided at the top of the front side wall 23b. Mounted rotatably. The outer diameter of the flange portion 31 b of the detachable metal fitting 31 is larger than the diameter of the round hole 24 so that the knob 31 a does not enter the round hole 24.

機械室１３の上面には、側面視でＬ字状のアングル３２の上部３２ａが固定される。アングル３２の下部３２ｂには、横長の長孔３３が設けられており、脱着金具３１のフック部３１ｃ・３１ｃを横並びの姿勢にしたときには（図５の斜視図の状態）、アングル３２の長孔３３にフック部３１ｃ・３１ｃが挿通可能になる。この横並びの姿勢のフック部３１ｃ・３１ｃをアングル３２の長孔３３に通したのち、脱着金具３１を回してフック部３１ｃ・３１ｃを縦並びの姿勢にしたときには（図５の縦断面図の状態）、アングル３２の長孔３３の上下の縁にフック部３１ｃ・３１ｃの鉤３４・３４がそれぞれ係止される。排水受皿２３の後側壁２３ｃの上端部は、外向きに屈曲しており、その上端部が機械室１３の上面に設けた係止部３５に嵌め込まれることで、排水受皿２３の後側壁２３ｃが機械室１３の上面に係止される。   An upper portion 32a of an L-shaped angle 32 is fixed to the upper surface of the machine room 13 in a side view. A horizontally long slot 33 is provided in the lower portion 32b of the angle 32. When the hook portions 31c and 31c of the attachment / detachment fitting 31 are in a side-by-side posture (as shown in the perspective view of FIG. 5), the slot 32 of the angle 32 is provided. The hook portions 31 c and 31 c can be inserted into the 33. After passing the hook portions 31c and 31c in the side-by-side posture through the elongated hole 33 of the angle 32, when the attaching / detaching bracket 31 is turned to bring the hook portions 31c and 31c into the vertically-positioned posture (the state of the longitudinal sectional view of FIG. 5) ), Hooks 34 and 34 of the hook portions 31c and 31c are respectively engaged with the upper and lower edges of the long hole 33 of the angle 32. The upper end portion of the rear side wall 23c of the drainage tray 23 is bent outward, and the upper end portion of the drainage tray 23 is fitted into a locking portion 35 provided on the upper surface of the machine chamber 13, so that the rear side wall 23c of the drainage tray 23 is formed. Locked to the upper surface of the machine room 13.

そして、前記アングル３２の長孔３３の上下の縁にフック部３１ｃ・３１ｃの鉤３４・３４を係止した状態から脱着金具３１のつまみ３１ａを回転させて、脱着金具３１の両フック３１ｃ・３１ｃを横並び状態にして、排水受皿２３を前方に引っ張ることで、脱着金具３１の両フック部３１ｃ・３１ｃがアングル３２の通孔３３から外れる。また前記排水受皿２３を前方に引っ張ることで、排水受皿２３の後側壁２３ｃの上端部が機械室１３の上面の係止部３５から外れる。これにて、図１０に示すように、排水受皿２３が機械室１３の上面から取り外される。   Then, the knob 31a of the detachable fitting 31 is rotated from the state where the hooks 34 and 34 of the hook portions 31c and 31c are locked to the upper and lower edges of the long hole 33 of the angle 32, and both the hooks 31c and 31c of the detachable fitting 31 are rotated. Are placed side by side, and the drain pan 23 is pulled forward, whereby both hook portions 31 c and 31 c of the attachment / detachment fitting 31 are detached from the through hole 33 of the angle 32. Further, by pulling the drain pan 23 forward, the upper end portion of the rear side wall 23 c of the drain pan 23 is disengaged from the locking portion 35 on the upper surface of the machine chamber 13. Thus, as shown in FIG. 10, the drain pan 23 is removed from the upper surface of the machine room 13.

この後、脱着金具３１の両フック部３１ｃ・３１ｃを横並び状態にしてアングル３２の通孔３３に通すとともに、排水受皿２３の後側壁２３ｃの上端部を機械室１３の上面の係止部３５に嵌め込んで、脱着金具３１を回転させることで、脱着金具３１の両フック部３１ｃ・３１ｃの鉤３４・３４がアングル３２の通孔３３の上下の縁に係止される。これにて、図７に示すように、排水受皿２３が機械室１３の上面に固定される。   Thereafter, the hook portions 31c and 31c of the attachment / detachment fitting 31 are placed side by side and passed through the through hole 33 of the angle 32, and the upper end portion of the rear side wall 23c of the drainage tray 23 is connected to the engaging portion 35 on the upper surface of the machine chamber 13. By fitting and rotating the attachment / detachment fitting 31, the hooks 34 and 34 of the hook portions 31 c and 31 c of the attachment / detachment attachment 31 are locked to the upper and lower edges of the through-hole 33 of the angle 32. As a result, as shown in FIG. 7, the drain pan 23 is fixed to the upper surface of the machine room 13.

蒸発皿２５は、図６および図８に示すように、圧縮機１５の上側に配置されており、蒸発皿２５内の底部には、圧縮機１５の冷媒出口側と凝縮器１６の冷媒入口側とを繋ぐ前記圧縮された冷媒が通るパイプ３６の中間部が配置される。前記パイプ３６の中間部は、図８に示すように、蒸発皿２５内で左右に折り返し状に形成される。そして、蒸発皿２５は、圧縮機１５の熱で温められるとともに、圧縮機１５で高温高圧に圧縮されたのち、前記パイプ３６の中間部内を流れる冷媒ガスの熱で温められる。これにて蒸発皿２５内のドレン水の蒸発が促進される。   As shown in FIGS. 6 and 8, the evaporating dish 25 is disposed on the upper side of the compressor 15, and at the bottom of the evaporating dish 25, the refrigerant outlet side of the compressor 15 and the refrigerant inlet side of the condenser 16 are disposed. An intermediate portion of the pipe 36 through which the compressed refrigerant is connected is disposed. As shown in FIG. 8, the intermediate portion of the pipe 36 is formed to be folded back left and right within the evaporating dish 25. The evaporating dish 25 is warmed by the heat of the compressor 15, compressed to a high temperature and a high pressure by the compressor 15, and then warmed by the heat of the refrigerant gas flowing in the intermediate portion of the pipe 36. Thereby, the evaporation of the drain water in the evaporating dish 25 is promoted.

蒸発皿２５の右側面は、図９に示すように開放されており、該開放面が蓋体３８によって塞がれている（図１参照）。つまり、蒸発皿２５の右側面の前後および下側の縁に沿ってコ字状のフランジ３９が設けられており、該フランジ３９にコ字状のパッキン４０を介して蓋体３８が五個のビス４１で着脱可能に取り付けられる。蓋体３８は、図１に示すように排水処理皿２６の上方に位置しており、図９に示すように蓋体３８の上端前側には、蒸発皿２５内にドレン水が過剰に溜まったときに、該ドレン水の過剰分を排水処理皿２６に溢れ出させるための切り欠き４２が形成される。該切り欠き４２は、図１および図７に示すように、排水処理皿２６内の蒸発体２７における切り欠き部分の上面４３の上方に位置している。   The right side surface of the evaporating dish 25 is open as shown in FIG. 9, and the open surface is closed by a lid 38 (see FIG. 1). That is, a U-shaped flange 39 is provided along the front and rear and lower edges of the right side surface of the evaporating dish 25, and five lids 38 are provided on the flange 39 via the U-shaped packing 40. The screw 41 is detachably attached. As shown in FIG. 1, the lid 38 is located above the waste water treatment tray 26, and as shown in FIG. 9, excessive drain water is accumulated in the evaporating dish 25 on the front end of the lid 38. Sometimes, a notch 42 is formed to allow the excess drain water to overflow into the waste water treatment tray 26. As shown in FIGS. 1 and 7, the cutout 42 is located above the upper surface 43 of the cutout portion of the evaporator 27 in the waste water treatment tray 26.

排水処理皿２６は、図４に示すように、機械室１３の底面において前後方向に伸びる左右一対のレール４５・４５に支持されており、排水処理皿２６が、レール４５・４５に沿って前後方向にスライド移動可能になっている。排水処理皿２６の後部の上側には、図７および図８に示すように送風ファン４６が配置されており、該送風ファン４６によって機械室１３内で温められた空気が排水処理皿２６に送風される。これにて排水処理皿２６内のドレン水の蒸発が促進される。   As shown in FIG. 4, the waste water treatment tray 26 is supported by a pair of left and right rails 45 and 45 extending in the front-rear direction on the bottom surface of the machine room 13, and the waste water treatment tray 26 is front and rear along the rails 45 and 45. It can slide in the direction. As shown in FIGS. 7 and 8, a blower fan 46 is arranged on the upper side of the rear portion of the wastewater treatment tray 26, and air warmed in the machine chamber 13 by the blower fan 46 is blown to the wastewater treatment tray 26. Is done. As a result, evaporation of drain water in the waste water treatment tray 26 is promoted.

排水処理皿２６内の前端部には、図７に示すように、水位センサ４７が配置される。水位センサ４７には、鉤状の係止具４８が取り付けられており、該係止具４８によって水位センサ４７が、排水処理皿２６の前側壁２６ａの上端に着脱可能に係止される。そして、水位センサ４７によって排水処理皿２６内のドレン水が過剰となったことが検知されたときには、その旨が表示部１８に表示される。   As shown in FIG. 7, a water level sensor 47 is disposed at the front end in the waste water treatment tray 26. A hook-shaped locking tool 48 is attached to the water level sensor 47, and the water level sensor 47 is detachably locked to the upper end of the front side wall 26 a of the drainage treatment dish 26 by the locking tool 48. When the water level sensor 47 detects that the drain water in the waste water treatment tray 26 has become excessive, a message to that effect is displayed on the display unit 18.

機械室１３の前面を覆う外装パネル４９には、上下方向に複数個の通気窓５０を並べて形成してあり、各通気窓５０は左右横長になっている。凝縮器１６の後ろ側の冷却ファン１７・１７の送風作用によって、外気が、外装パネル４９の各通気窓５０から機械室１３内に吸い込まれて凝縮器１６を冷却する。それによって温められた外気は、蒸発皿２５側へ流れて蒸発皿２５を温め、また排水処理皿２６側へ流れて排水処理皿２６を温める。これにて、蒸発皿２５内と排水処理皿２６内とのドレン水の蒸発が促進される。外装パネル４９は、機械室１３の前面に対して着脱可能になっている。   A plurality of ventilation windows 50 are arranged in the vertical direction on the exterior panel 49 covering the front surface of the machine room 13, and each ventilation window 50 is horizontally long. Due to the air blowing action of the cooling fans 17 and 17 on the rear side of the condenser 16, the outside air is sucked into the machine room 13 from the ventilation windows 50 of the exterior panel 49 to cool the condenser 16. The outside air warmed thereby flows to the evaporating dish 25 side to warm the evaporating dish 25, and flows to the waste water treatment dish 26 side to warm the waste water treating dish 26. Thereby, evaporation of drain water in the evaporating dish 25 and the waste water treatment dish 26 is promoted. The exterior panel 49 can be attached to and detached from the front surface of the machine room 13.

排水受皿２３内には、ドレン水と共に塵埃等が冷蔵庫本体１側から流れ込んで溜まるために、排水受皿２３を機械室１３から取り出して清掃することになる。この際の手順を図１０を用いて説明する。先ず外装パネル４９を機械室２５から取り外す。そして、排水処理皿２６から水位センサ４７を取り外して、排水処理皿２６をレール４５・４５に沿って前方に引っ張って、排水処理皿２６を機械室２５から取り出す（図１０の状態）。   In the drain pan 23, dust and the like flow together with the drain water from the refrigerator main body 1 side, so that the drain pan 23 is removed from the machine room 13 and cleaned. The procedure at this time will be described with reference to FIG. First, the exterior panel 49 is removed from the machine room 25. Then, the water level sensor 47 is removed from the waste water treatment tray 26, the waste water treatment tray 26 is pulled forward along the rails 45 and 45, and the waste water treatment tray 26 is taken out from the machine room 25 (state of FIG. 10).

次いで、排水受皿２３の脱着金具３１のつまみ３１ａを回転させるとともに排水受皿２３を前方に引っ張って、脱着金具３１を機械室１３のアングル３２から外すとともに排水受皿２３の後側壁２３ｃの上端部を機械室１３の係止部３５から外す（図１０の状態）。この排水受皿２３を機械室１３から取り出して、排水受皿２３を清掃する。清掃後には、排水受皿２３の後側壁２３ｃの上端部を機械室１３の係止部３５に嵌め込むとともに、脱着金具３１の両フック部３１ｃ・３１ｃをアングル３２の通孔３３に差し込んで、脱着金具３１のつまみ３１ａを回転させて、脱着金具３１を機械室１３のアングル３２に係止する。これにて、排水受皿２３が、機械室１３の上面に固定される。   Next, the knob 31a of the attachment / detachment bracket 31 of the drainage tray 23 is rotated and the drainage tray 23 is pulled forward to remove the attachment / detachment bracket 31 from the angle 32 of the machine chamber 13 and the upper end portion of the rear side wall 23c of the drainage tray 23 is machined. It removes from the latching | locking part 35 of the chamber 13 (state of FIG. 10). The drain tray 23 is taken out from the machine room 13 and the drain tray 23 is cleaned. After cleaning, the upper end portion of the rear side wall 23c of the drain pan 23 is fitted into the locking portion 35 of the machine chamber 13, and the hook portions 31c and 31c of the detachable metal fitting 31 are inserted into the through holes 33 of the angle 32 to be detached. The knob 31 a of the metal fitting 31 is rotated, and the detachable metal fitting 31 is locked to the angle 32 of the machine chamber 13. As a result, the drain pan 23 is fixed to the upper surface of the machine room 13.

この後、排水処理皿２６をレール４５・４５に載せて後方に押し込んで、排水処理皿２６を機械室２５に装着する。また、排水処理皿２６に水位センサ４７を取り付ける。次に、機械室１３の前面に外装パネル４９を取り付けることで作業が完了する。   Thereafter, the waste water treatment tray 26 is placed on the rails 45 and 45 and pushed backward to mount the waste water treatment tray 26 in the machine room 25. Further, a water level sensor 47 is attached to the waste water treatment tray 26. Next, the work is completed by attaching the exterior panel 49 to the front surface of the machine room 13.

蒸発皿２５内を清掃する場合、または蒸発皿２５内の蒸発体２７を交換する場合には、前述のように排水受皿２３および排水処理皿２６を機械室１３から取り出してから（図１０の状態）、蒸発皿２５の右側面から蓋体３８を取り外す。この状態で、蒸発皿２５内を清掃し、または蒸発皿２５内の蒸発体２７を交換する。なお、排水処理皿２６を機械室１３から取り出すことで、排水処理皿２６内を清掃し、または排水処理皿２６内の蒸発体２７を交換することができる。   When the inside of the evaporating dish 25 is cleaned or when the evaporator 27 in the evaporating dish 25 is replaced, the drainage tray 23 and the wastewater treatment tray 26 are taken out from the machine chamber 13 as described above (the state shown in FIG. 10). ) Remove the lid 38 from the right side surface of the evaporating dish 25. In this state, the inside of the evaporating dish 25 is cleaned or the evaporator 27 in the evaporating dish 25 is replaced. In addition, by removing the waste water treatment tray 26 from the machine room 13, the inside of the waste water treatment tray 26 can be cleaned, or the evaporator 27 in the waste water treatment tray 26 can be replaced.

このように、排水受皿２３内のドレン水の水面Ｓが、少なくともサイフォン管２９の一方側の下端開口２９ａよりも高い位置であるサイフォン管２９の中空部の下端よりも高くなると、排水受皿２３内のドレン水が、サイフォン管２９の一方側の下端開口２９ａから吸い込まれて蒸発皿２５に流れ出す。そして、この吸い込みの開始後に排水受皿２３内のドレン水の水面Ｓが、サイフォン管２９の一方側の下端開口２９ａよりも低くなると、サイフォン管２９による排水受皿２３内のドレン水の吸い込みが停止する。   Thus, when the water level S of the drain water in the drainage tray 23 becomes higher than at least the lower end of the hollow portion of the siphon tube 29 that is higher than the lower end opening 29a on one side of the siphon tube 29, The drain water is sucked from the lower end opening 29 a on one side of the siphon tube 29 and flows out to the evaporating dish 25. Then, when the water surface S of the drain water in the drainage tray 23 becomes lower than the lower end opening 29a on one side of the siphon tube 29 after the start of the suction, the suction of the drain water in the drain tray 23 by the siphon tube 29 is stopped. .

つまり、サイフォン管２９は、前記水面Ｓよりも下側のドレン水を一方側の下端開口２９ａから吸い込むことになる。このため、排水受皿２３内のドレン水の水面Ｓに浮いている塵埃等が、ドレン水と共にサイフォン管２９に吸い込まれることが低減される。また、サイフォン管２９は、一方側の下端開口２９ａよりも低い排水受皿２３の底部分にドレン水を残した状態でドレン水の吸い込みを停止するので、排水受皿２３の底に沈んでいる塵埃等をドレン水と共に吸い込むことも低減される。   That is, the siphon tube 29 sucks the drain water below the water surface S from the lower end opening 29a on one side. For this reason, it is reduced that the dust etc. which floats on the water surface S of the drain water in the drain pan 23 are sucked into the siphon tube 29 together with the drain water. Further, the siphon tube 29 stops the suction of the drain water while leaving the drain water at the bottom portion of the drainage tray 23 lower than the lower end opening 29a on one side, so that dust sinking at the bottom of the drainage tray 23, etc. Inhalation with drain water is also reduced.

すなわち、蒸発皿２５には、塵埃等を除去した状態のドレン水が送られることになる。したがって、前記塵埃等が蒸発皿２５内の蒸発体２７に付着することが抑えられ、塵埃等の付着によって蒸発体２７が目詰まりしてドレン水が吸収され難くなることが抑えられる。   That is, drain water in a state where dust and the like are removed is sent to the evaporating dish 25. Accordingly, it is possible to suppress the dust and the like from adhering to the evaporation body 27 in the evaporating dish 25, and it is possible to prevent the evaporation body 27 from being clogged by the adhesion of the dust and the like, so that the drain water is not easily absorbed.

本発明は、前記オープンショーケース以外にも適用可能であり、冷蔵庫本体１の陳列室２の前面開口を断熱構造の扉またはガラス製の扉で開閉するものであってもよい。冷蔵庫本体１からのドレン水の排水量が少ない場合には、排水処理皿２６内に蒸発体２７を配置しなくてもよく、また排水処理皿２６を設けなくてもよい。蒸発皿２５内にパイプ３６の中間部を配置しなくてもよい。蒸発体２７はスポンジ等であってもよい。水位センサ４７によって排水処理皿２６内のドレン水が過剰となったことが検知されたときに、前記表示部１８での表示と共に、または前記表示に代えてブザー等で報知してもよい。   The present invention can be applied to other than the open showcase, and the front opening of the display chamber 2 of the refrigerator main body 1 may be opened and closed with a heat insulating structure door or a glass door. When the amount of drain water drained from the refrigerator body 1 is small, the evaporator 27 does not have to be disposed in the waste water treatment tray 26, and the waste water treatment tray 26 does not have to be provided. The middle part of the pipe 36 may not be arranged in the evaporating dish 25. The evaporator 27 may be a sponge or the like. When it is detected by the water level sensor 47 that the drain water in the waste water treatment tray 26 becomes excessive, a notification may be given with a buzzer or the like together with the display on the display unit 18 or instead of the display.

本発明に係るオープンショーケースの要部を示す縦断正面図である。It is a vertical front view which shows the principal part of the open showcase which concerns on this invention. 本発明に係るオープンショーケースの正面図である。It is a front view of the open showcase which concerns on this invention. 本発明に係るオープンショーケースの縦断側面図である。It is a vertical side view of the open showcase which concerns on this invention. 本発明に係る排水蒸発機構示す縦断平面図である。1 is a longitudinal plan view showing a drainage evaporation mechanism according to the present invention. 蒸発皿の着脱機構を示す斜視図である。It is a perspective view which shows the attachment / detachment mechanism of an evaporating dish. 本発明に係る排水蒸発機構示す縦断正面図である。It is a vertical front view which shows the waste water evaporation mechanism which concerns on this invention. 図６のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 図６のＢ−Ｂ線断面図である。It is the BB sectional view taken on the line of FIG. 蒸発皿の分解斜視図である。It is a disassembled perspective view of an evaporating dish. 蒸発皿の取り外し動作を示す概略縦断面図である。It is a schematic longitudinal cross-sectional view which shows the removal operation | movement of an evaporating dish.

符号の説明Explanation of symbols

１ 冷蔵庫本体
２ 陳列室
１２ 熱交換器
２３ 排水受皿
２３ａ 排水受皿の左側壁
２５ 蒸発皿
２６ 排水処理皿
２７ 蒸発体
２９ サイフォン管
２９ａ サイフォン管の一方側の下端開口
２９ｂ サイフォン管の他方側の下端開口
３６ 冷媒循環用パイプ DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Display chamber 12 Heat exchanger 23 Drain tray 23a Drain tray 23 Left side wall 25 Evaporation tray 26 Drain treatment tray 27 Evaporator 29 Siphon tube 29a Siphon tube lower end opening 29b Siphon tube lower end opening 36 Pipe for refrigerant circulation

Claims (4)

冷蔵庫本体（１）から排出されたドレン水を受け止める排水受皿（２３）と、排水受皿（２３）よりも下方に配置されて排水受皿（２３）から送られてきたドレン水を蒸発させる蒸発皿（２５）とを備える業務用冷蔵庫であって、
蒸発皿（２５）内には、ドレン水を吸収して蒸発させるための蒸発体（２７）が収容されており、
排水受皿（２３）の側壁（２３ａ）には、排水受皿（２３）内のドレン水を蒸発皿（２５）に送るためのサイフォン管（２９）が配置されており、
サイフォン管（２９）は、その両端が下向きに指向する逆Ｕ字状を呈しており、排水受皿（２３）内で開口する一方側の下端開口（２９ａ）が、排水受皿（２３）の底面に対して所定間隔をあけて臨んでおり、排水受皿（２３）外で開口する他方側の下端開口（２９ｂ）が、蒸発皿（２５）の底面に臨んでおり、
サイフォン管（２９）の一方側の下端開口（２９ａ）が、他方側の下端開口（２９ｂ）よりも高い位置に設けられていることを特徴とする業務用冷蔵庫。 A drain pan (23) that catches drain water discharged from the refrigerator main body (1), and an evaporating tray that is disposed below the drain pan (23) and evaporates drain water sent from the drain pan (23) ( 25) a commercial refrigerator,
An evaporating body (27) for absorbing and evaporating drain water is accommodated in the evaporating dish (25),
A siphon tube (29) for sending drain water in the drainage tray (23) to the evaporation tray (25) is disposed on the side wall (23a) of the drainage tray (23),
The siphon tube (29) has an inverted U shape whose both ends are directed downward, and one lower end opening (29a) opened in the drainage tray (23) is formed on the bottom surface of the drainage tray (23). The other side lower end opening (29b) that opens outside the drainage tray (23) faces the bottom surface of the evaporating dish (25),
A commercial refrigerator characterized in that the lower end opening (29a) on one side of the siphon tube (29) is provided at a position higher than the lower end opening (29b) on the other side. 冷蔵庫本体（１）内に設けた収容室（２）が、冷却器（１２）によって冷却されるようになっており、
ガス状態で高温高圧に圧縮されたのちに液化された冷媒が冷却器（１２）に送られることで、該冷媒が冷却器（１２）で気化して、その気化熱で冷却器（１２）が冷却されるようになっており、
蒸発皿（２５）に、前記圧縮された冷媒が通るパイプ（３６）が配置されている請求項１記載の業務用冷蔵庫。 The storage chamber (2) provided in the refrigerator body (1) is cooled by the cooler (12),
The refrigerant liquefied after being compressed to a high temperature and high pressure in a gas state is sent to the cooler (12), and the refrigerant is vaporized by the cooler (12), and the cooler (12) is heated by the vaporization heat. It is supposed to be cooled
The commercial refrigerator according to claim 1, wherein a pipe (36) through which the compressed refrigerant passes is disposed in the evaporating dish (25). 蒸発皿（２５）の下方に、排水処理皿（２６）が配置されており、
排水処理皿（２６）に、蒸発皿（２５）から溢れ出たドレン水が貯留される請求項１又は２記載の業務用冷蔵庫。 Under the evaporating dish (25), a waste water treatment dish (26) is arranged,
The commercial refrigerator according to claim 1 or 2, wherein drain water overflowing from the evaporating dish (25) is stored in the waste water treatment dish (26). 排水処理皿（２６）内に、ドレン水を吸収して蒸発させるための蒸発体（２７）が収容されている請求項３記載の業務用冷蔵庫。   The commercial refrigerator according to claim 3, wherein an evaporation body (27) for absorbing and evaporating drain water is accommodated in the waste water treatment tray (26).
JP2008123444A 2008-05-09 2008-05-09 Commercial refrigerator Expired - Fee Related JP5219611B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010085035A (en) * 2008-09-30 2010-04-15 Sanden Corp Water level sensor attachment member
CN112964009A (en) * 2021-02-23 2021-06-15 珠海格力电器股份有限公司 Refrigerating device with self-cleaning condenser

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CN112964009A (en) * 2021-02-23 2021-06-15 珠海格力电器股份有限公司 Refrigerating device with self-cleaning condenser
CN112964009B (en) * 2021-02-23 2022-02-01 珠海格力电器股份有限公司 Refrigerating device with self-cleaning condenser

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