JP2003208662A - Internal cooling device for vending machine - Google Patents

Internal cooling device for vending machine

Info

Publication number
JP2003208662A
JP2003208662A JP2002002890A JP2002002890A JP2003208662A JP 2003208662 A JP2003208662 A JP 2003208662A JP 2002002890 A JP2002002890 A JP 2002002890A JP 2002002890 A JP2002002890 A JP 2002002890A JP 2003208662 A JP2003208662 A JP 2003208662A
Authority
JP
Japan
Prior art keywords
refrigerator
cabinet
evaporator
vending machine
heat
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
JP2002002890A
Other languages
Japanese (ja)
Inventor
Shinji Kiyofuji
真次 清藤
Akio Adachi
昭夫 安達
Ryuichi Takada
隆一 高田
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP2002002890A priority Critical patent/JP2003208662A/en
Publication of JP2003208662A publication Critical patent/JP2003208662A/en
Pending legal-status Critical Current

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  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the internal commodity housing efficiency of a vending machine by saving the space of the evaporator of a refrigerator set therein and to ensure high safety even to the refrigerator using a combustible hydrocarbon-based alternate coolant. <P>SOLUTION: In this internal cooling device for vending machine, the conditioning unit 9 of the refrigerator is mounted on the lower outside of a cabinet 1 which forms a heat-insulating casing provided with a commodity housing rack 4, and the air heat-exchange with the evaporator of the refrigerator within the cabinet is circulated into the cabinet to refrigerate housed commodities 11. The evaporator 12 has a constitution in which a coolant pipe 12b is arranged on the reverse side of a cooling panel 12a so as to transfer heat, the surface side of the cooling panel is inwardly mounted on a heat-insulating wall on the cabinet internal back surface to isolate the coolant pipe from the cabinet inner side, and the coolant pipe 12b of the evaporator is connected to a conditioning unit-side coolant pipe 10 through a tube fitting 14 without being distributed within the cabinet inside. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、缶,びん,ペット
ボトル入り飲料などを機内で保冷し、コールド商品とし
て販売に供する自動販売機の庫内冷却装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-compartment cooling device for an automatic vending machine, which cools cans, bottles, beverages containing plastic bottles, etc. in the machine and sells them as cold products.

【0002】[0002]

【従来の技術】まず、頭記の自動販売機に装備した庫内
冷却装置の従来構成を図6に示す。図6において、1は
自動販売機のキャビネット、2は前面外扉、3は断熱内
扉、4はキャビネット1の庫内に収設した商品収納ラッ
ク、5は商品搬出シュータ、6は外扉2に開口した商品
取出口、7は庫内底部に配置した冷却/加熱ユニット、
8は冷却/加熱ユニット7に連ねて庫内の背面側に敷設
した庫内空気の吸込ダクト、9は冷凍機のコンデンシン
グユニットであり、該コンデンシングユニット9はキャ
ビネット1の下部(庫外側)に画成した機械室に設置さ
れている。
2. Description of the Related Art First, FIG. 6 shows a conventional structure of a refrigerator for an inside of a refrigerator provided in the vending machine described above. In FIG. 6, 1 is a vending machine cabinet, 2 is a front outer door, 3 is a heat-insulating inner door, 4 is a product storage rack housed in the cabinet 1, 5 is a product carry-out shooter, and 6 is an outer door 2. A product outlet opening at 7, a cooling / heating unit 7 arranged at the bottom of the refrigerator,
Reference numeral 8 is a cooling / heating unit 7 and a suction duct for air inside the storage laid on the rear side of the storage inside the storage, 9 is a condensing unit of the refrigerator, and the condensing unit 9 is the lower part of the cabinet 1 (outside the storage). It is installed in the machine room defined by.

【0003】ここで、キャビネット1は内箱と外箱との
間に断熱材(発泡樹脂)を充填した断熱筐体としてな
る。また、冷却/加熱ユニット7は冷凍機の蒸発器(フ
ィン・チューブ形蒸発器)7a,庫内ファン7b,およ
び商品加熱用のヒータ7cを風胴で包囲した構成にな
り、庫内底部の後部側に設置して風胴の後端を先記の吸
込ダクト8に連通させるようにしている。そして、冷凍
機のコンデンシングユニット9から引出した冷媒管10
はキャビネット1の底壁を貫通した上で、庫内底部側を
引き回して蒸発器7aと管継手を介して接続するように
配管されている。
Here, the cabinet 1 is a heat-insulating housing in which a heat insulating material (foamed resin) is filled between an inner box and an outer box. Further, the cooling / heating unit 7 has a structure in which an evaporator (fin / tube type evaporator) 7a of a refrigerator, a fan 7b in a refrigerator, and a heater 7c for heating goods are surrounded by a wind tunnel, and a rear portion of a bottom of the refrigerator is used. It is installed on the side so that the rear end of the wind tunnel communicates with the suction duct 8 described above. Then, the refrigerant pipe 10 drawn out from the condensing unit 9 of the refrigerator
Is pierced through the bottom wall of the cabinet 1 and then laid around the bottom side of the cabinet to be connected to the evaporator 7a through a pipe joint.

【0004】上記の構成で、自動販売機のコールド商品
販売モードに合わせて冷凍機を運転すると、蒸発器7a
と熱交換して低温に冷却された庫内空気がファン送風に
より庫内を循環通風して商品収納ラック4に収納した商
品11を保冷することは周知の通りである。
With the above configuration, when the refrigerator is operated in accordance with the cold commodity sales mode of the vending machine, the evaporator 7a
It is well known that the inside air cooled to a low temperature by exchanging heat is circulated and ventilated in the inside by a fan to keep the products 11 stored in the product storage rack 4 cool.

【0005】[0005]

【発明が解決しようとする課題】ところで、前記のよう
に冷凍機の蒸発器7aを冷却/加熱ユニット7に組付け
た上で、キャビネット1の庫内底部側に設置した従来構
成の庫内冷却装置では、次記のような問題点がある。す
なわち、 (1) 冷却/加熱ユニット7がキャビネット1の庫内一角
を占有するために、庫内における商品収納スペースが制
約される。特に、図示例のように商品収納ラック4の下
方に商品搬出シュータ5を敷設してラックから搬出した
商品を商品取出口に送出するようにした構成の自動販売
機では、冷却/加熱ユニット7との干渉を避けるように
急角度で敷設した商品搬出シュータ5の下面側には商品
の収納スペースに寄与しない大きなデッドスペースが生
じ、このために庫内の商品収容効率が低くなる。
By the way, as described above, after the evaporator 7a of the refrigerator is assembled to the cooling / heating unit 7, the internal cooling of the conventional structure is installed on the bottom side of the internal cabinet 1 of the cabinet 1. The device has the following problems. That is, (1) Since the cooling / heating unit 7 occupies a corner of the cabinet 1 inside the cabinet, the product storage space in the cabinet is restricted. In particular, in a vending machine having a structure in which a product carry-out shooter 5 is laid below the product storage rack 4 and the product carried out from the rack is delivered to a product take-out port as in the illustrated example, a cooling / heating unit 7 is provided. A large dead space that does not contribute to the storage space of the product is generated on the lower surface side of the product carry-out shooter 5 laid at a steep angle so as to avoid the interference of the product.

【0006】(2) 自動販売機に搭載した従来の冷凍機で
は、冷媒としてフロン系の冷媒を使用しているが、フロ
ン系冷媒はオゾン層を破壊するなどの環境問題があるこ
とから使用を禁止し、その代替冷媒として自然系に存在
するプロパン・イソブタンなどの炭化水素系の冷媒を用
いることが検討されている。ところで、前記した炭化水
素系の代替冷媒は可燃性(爆発性)があることから、そ
の使用に当たっては冷凍機からの冷媒漏れに対する十分
な安全対策が要求される。
(2) In a conventional refrigerator installed in a vending machine, a CFC-based refrigerant is used as a refrigerant, but a CFC-based refrigerant has environmental problems such as depletion of the ozone layer. Prohibition, and the use of hydrocarbon-based refrigerants such as propane and isobutane that are present in nature as alternative refrigerants is being considered. By the way, since the above-mentioned hydrocarbon-based alternative refrigerant is flammable (explosive), sufficient safety measures against refrigerant leakage from the refrigerator are required for its use.

【0007】かかる点、図6で述べたように冷凍機の蒸
発器7bを庫内側に配置した上で、コンデンシングユニ
ット9から引出した冷媒管10を庫内側に引き込んで接
続した従来構成では、長期運転の間に冷媒配管の管継手
の緩み,配管の腐食などによって冷媒が漏洩すると、漏
洩した冷媒ガスは殆ど密閉されているキャビネット1の
庫内全域に拡散してガス濃度が高まり、機内電装品のス
イッチ開閉に伴う火花などにより引火して爆発する危険
がある。
In this respect, in the conventional construction in which the evaporator 7b of the refrigerator is arranged inside the refrigerator as described in FIG. 6, and the refrigerant pipe 10 drawn out from the condensing unit 9 is drawn into the inside of the refrigerator and connected. If the refrigerant leaks due to loosening of the pipe joints of the refrigerant pipes, corrosion of the pipes, etc. during a long-term operation, the leaked refrigerant gas diffuses throughout the entire cabinet 1 inside the cabinet 1 where the gas concentration increases, and the on-board electrical equipment There is a risk of ignition and explosion due to sparks, etc. associated with opening and closing the switch of the product.

【0008】また、炭化水素系の代替冷媒を使用した冷
凍機では、フロン系冷媒を使用した同じ冷凍能力の冷凍
機と比べて大形になることから、自動販売機に搭載する
冷凍機の蒸発器に従来構造と同様な蒸発器を採用する
と、前項(1) で述べた庫内デッドスペースがさらに増加
して庫内の商品収容効率が一層低下するようになる。本
発明は上記の点に鑑みなされたものであり、その目的は
前記課題を解決し、機内に設置する冷凍機の蒸発器を省
スペース化して庫内の商品収容効率を高め、併せて冷凍
機の冷媒に可燃性の代替冷媒を採用した場合でも冷媒漏
れに対して高い安全性が確保できるように改良した自動
販売機の庫内冷却装置を提供することにある。
Further, since a refrigerator using a hydrocarbon-based alternative refrigerant is larger than a refrigerator using a CFC-based refrigerant and having the same refrigerating capacity, evaporation of the refrigerator installed in the vending machine is required. If an evaporator similar to the conventional structure is used for the container, the dead space in the storage described in (1) above will further increase and the efficiency of storing goods in the storage will further decrease. The present invention has been made in view of the above points, and an object thereof is to solve the problems described above, to save space in an evaporator of a refrigerator installed in a machine to improve product storage efficiency in a refrigerator, and also to cool the refrigerator. Another object of the present invention is to provide an improved refrigerator inside a vending machine, which is capable of ensuring a high level of safety against refrigerant leakage even when a flammable alternative refrigerant is used as the refrigerant.

【0009】[0009]

【課題を解決するための手段】上記目的を達成するため
に、本発明によれば、断熱筐体になるキャビネットの庫
内に商品収納ラックを収設するとともに、庫外側に冷凍
機のコンデンシングユニットを搭載し、該冷凍機の蒸発
器と熱交換した庫内空気を庫内に循環送風して収納商品
を保冷するようにした自動販売機の庫内冷却装置におい
て、前記蒸発器を、冷却パネルの裏側面に冷媒管を伝熱
的に配管した構成となし、かつ前記冷却パネルの表側面
を庫内側に露呈させてキャビネットの断熱壁に装着する
とともに、冷凍機のコンデンシングユニットから引出し
た冷媒配管と蒸発器の冷媒管とを庫内を引き回すことな
く庫外側にて相互接続するものとし(請求項1)、具体
的には次記のような態様で構成することができる。
In order to achieve the above object, according to the present invention, a product storage rack is housed in a cabinet of a cabinet which is a heat-insulating housing, and a refrigerator condensing is provided outside the cabinet. In a refrigerator for a vending machine, which is equipped with a unit and circulates air inside the refrigerator that has exchanged heat with the evaporator of the refrigerator to cool the stored products, the evaporator is cooled. Refrigerant pipes are heat-transferred on the back side of the panel, and the front side of the cooling panel is exposed to the inside of the cabinet and attached to the heat insulating wall of the cabinet and pulled out from the condensing unit of the refrigerator. The refrigerant pipe and the refrigerant pipe of the evaporator are interconnected on the outside of the refrigerator without being routed inside the refrigerator (Claim 1), and specifically, the following configurations can be adopted.

【0010】(1) 蒸発器の冷却パネルを、キャビネット
の庫内背面壁に沿わせて装着する(請求項2)。 (2) 蒸発器の冷却パネルを、キャビネットの庫内底面壁
に沿わせて装着する(請求項3)。 (3) 蒸発器の冷媒管を庫内空間と隔離して漏洩した冷媒
ガスが庫内に拡散するのを防ぐために、冷却パネルの周
縁とキャビネットの断熱壁面との間にパッキンを介装し
て両者間を気密にシールする(請求項4)。
(1) The cooling panel of the evaporator is attached along the back wall of the cabinet inside (claim 2). (2) The cooling panel of the evaporator is attached along the bottom wall of the cabinet inside (claim 3). (3) In order to prevent the refrigerant gas of the evaporator from being separated from the space inside the refrigerator and to prevent the leaked refrigerant gas from diffusing into the refrigerator, a packing is provided between the peripheral edge of the cooling panel and the heat insulating wall surface of the cabinet. An airtight seal is provided between the two (Claim 4).

【0011】(4) 蒸発器と庫内空気との熱交換性を高め
るために、冷却パネルの表側面に庫内空気の送風方向に
沿って延在する伝熱フィンを設ける(請求項5)。 (5) 蒸発器と庫内空気との熱交換性をより一層向上する
ために、前項(4) の伝熱フィンを包囲をして冷却パネル
に庫内空気を導く導風ダクトを設ける(請求項6)。
(4) In order to enhance heat exchange between the evaporator and the air in the refrigerator, heat transfer fins extending along the air blowing direction of the air in the refrigerator are provided on the front surface of the cooling panel (claim 5). . (5) In order to further improve the heat exchange performance between the evaporator and the air in the refrigerator, an air guide duct that surrounds the heat transfer fins in (4) above and guides the air in the refrigerator to the cooling panel is provided. Item 6).

【0012】上記の構成によれば、冷却パネルはキャビ
ネットの断熱壁に沿わせて装着されていて、冷凍機の蒸
発器が庫内スペースの一角を占有することがなく、これ
により図6で述べた従来構成と比べて庫内に生じるデッ
ドスペースを大幅に縮減して商品収納効率を高めること
ができる。しかも、蒸発器の冷媒管は冷却パネルの裏面
側に配管して庫内空間との間が隔離されており、さらに
蒸発器の冷媒管とコンデンシングユニット側の冷媒配管
とを庫内側を経由することなく庫外側で接続するように
したので、長期運転の間に冷媒配管の腐食,あるいは管
継手に緩みが生じて冷媒ガスが万一漏れても、漏洩した
冷媒ガスが庫内に侵入するおそれはない。したがって、
冷媒として可燃性のある炭化水素系の代替冷媒を使用し
た冷凍機でも安全に使用できる。
According to the above construction, the cooling panel is installed along the heat insulating wall of the cabinet, and the evaporator of the refrigerator does not occupy one corner of the interior space, which is described in FIG. Compared with the conventional configuration, the dead space generated in the refrigerator can be greatly reduced, and the product storage efficiency can be improved. Moreover, the refrigerant pipe of the evaporator is laid on the back side of the cooling panel to isolate the inside space from the inside of the refrigerator, and the refrigerant pipe of the evaporator and the refrigerant pipe on the condensing unit side are passed through the inside of the refrigerator. Since the connection is made outside the refrigerator, even if the refrigerant gas leaks due to corrosion of the refrigerant pipe or loosening of the pipe joint during long-term operation, the leaked refrigerant gas may enter the inside of the refrigerator. That's not it. Therefore,
Even a refrigerator using a flammable hydrocarbon-based alternative refrigerant as a refrigerant can be safely used.

【0013】[0013]

【発明の実施の形態】以下、本発明の実施の形態を図1
〜図5に示す実施例に基づいて説明する。なお、実施例
の図中で図6に対応する部材には同じ符号を付してその
説明は省略する。まず、図1(a),(b) および図2に示す
実施例において、自動販売機に搭載した冷凍機の蒸発器
12は、伝熱性の高い金属で作られた平板状の冷却プレ
ート12aと、該プレートの裏側面に蛇行状に配管して
ろう付された冷媒管12bからなり、自動販売機のキャ
ビネット1に対しては図示のように庫内の背面側に布設
した吸込ダクト8と対峙して背面側の断熱壁に装着され
ている。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIG.
~ It demonstrates based on the Example shown in FIG. In the drawings of the embodiments, members corresponding to those in FIG. 6 are designated by the same reference numerals, and the description thereof will be omitted. First, in the embodiment shown in FIGS. 1 (a), 1 (b) and FIG. 2, the evaporator 12 of the refrigerator installed in the vending machine has a flat cooling plate 12a made of metal having high heat conductivity. , A refrigerant pipe 12b brazed in a meandering manner on the back side of the plate, and confronts the suction duct 8 laid on the back side of the cabinet as shown in the figure for the cabinet 1 of the vending machine. Then, it is attached to the heat insulating wall on the back side.

【0014】すなわち、キャビネット1の断熱壁は内箱
1aと外箱1bとその間に充填された断熱材(発泡樹
脂)1cからなり、ここで庫内側に面する内箱1aには
蒸発器の取付箇所に冷却プレート12aの外形に相応し
た角穴を開口しておき、ここに冷却プレート12aの表
側面を庫内側に向けて装着する。なお、この場合に冷却
プレート12aの周縁と内箱1aの角穴周縁との間に
は、断熱材とシール材を兼ねたパッキン13を介挿した
上でねじ止めして固定する。なお、キャビネット1の庫
内底部側には、図6で述べた庫内ファン7b,ヒータ7
cを備えている。
That is, the heat insulating wall of the cabinet 1 is composed of an inner box 1a, an outer box 1b and a heat insulating material (foamed resin) 1c filled between them, and an evaporator is attached to the inner box 1a facing the inside of the cabinet. A square hole corresponding to the outer shape of the cooling plate 12a is opened at a location, and the cooling plate 12a is attached with the front side surface facing the inside of the refrigerator. In this case, a packing 13 also serving as a heat insulating material and a sealing material is inserted between the peripheral edge of the cooling plate 12a and the peripheral edge of the square hole of the inner box 1a, and then fixed by screwing. It should be noted that the inside fan 7b and the heater 7 described in FIG.
It has c.

【0015】また、蒸発器12の冷媒管12bは、キャ
ビネット1の断熱壁の内部を通して冷凍機のコンデンシ
ングユニット9を設置した底部側の機械室の中に引出す
ように引回し、ここでコンデンシングユニット9側の冷
媒配管10と管継手14を介して相互接続する。上記の
構成において、自動販売機の保冷運転時には、冷凍機サ
イクルにより蒸発器12の冷却プレート12aが低温に
冷却されている。この状態でファン送風により庫内に循
環送風される空気は、吸込ダクト8を流れる過程で蒸発
器12の冷却プレート12aと熱交換して冷却された
後、庫内ファン7bを経て庫内に吹き出して商品収納ラ
ック4に収納されている商品11を冷却する。
Further, the refrigerant pipe 12b of the evaporator 12 is drawn out through the inside of the heat insulating wall of the cabinet 1 into the machine room on the bottom side where the condensing unit 9 of the refrigerator is installed, where the condensing is performed. The refrigerant pipe 10 on the unit 9 side is connected to each other via a pipe joint 14. In the above configuration, the cooling plate 12a of the evaporator 12 is cooled to a low temperature by the refrigerator cycle during the cold insulation operation of the vending machine. In this state, the air that is circulated and blown into the cabinet by the fan blowing is cooled by exchanging heat with the cooling plate 12a of the evaporator 12 while flowing through the suction duct 8, and then blown into the cabinet through the in-compartment fan 7b. Then, the products 11 stored in the product storage rack 4 are cooled.

【0016】この場合に、蒸発器12はキャビネット1
の庫内から引っ込んでキャビネット1の背面側の断熱壁
に装着されており、図6に示した従来構造のように蒸発
器が庫内空間の一角を占有することがなく、これにより
庫内におけるデッドスペースを大幅に縮減して商品収容
効率を高めることができる。また、図1(b) で判るよう
に蒸発器12の冷媒管12bは、冷却プレート12aを
隔てて庫内側とは隔離されており、かつ冷却プレート1
2aの周縁はパッキン13で気密にシールされている。
しかも、冷媒管12bは庫内側を経由せずに、庫外側の
機械室に引出して管継手14に接続されている。したが
って、冷凍機の長期使用の間に管継手14が緩んだり,
冷媒管が腐食して冷媒ガスが漏れても、漏洩したガスは
全て庫外側に拡散してキャビネット1の庫内に侵入する
ことがなく、これにより冷凍機の冷媒に可燃性の代替冷
媒(炭化水素系冷媒)を採用した場合でも、引火,爆発
などの事故発生を防いで安全性を確保できる。
In this case, the evaporator 12 is the cabinet 1
It is attached to the heat insulating wall on the back side of the cabinet 1 by retracting from the inside of the cabinet, so that the evaporator does not occupy a corner of the inside of the cabinet unlike the conventional structure shown in FIG. The dead space can be greatly reduced to improve product storage efficiency. Further, as can be seen from FIG. 1 (b), the refrigerant pipe 12b of the evaporator 12 is separated from the inside of the refrigerator by separating the cooling plate 12a and the cooling plate 1b.
The periphery of 2a is airtightly sealed by packing 13.
Moreover, the refrigerant pipe 12b is drawn out into the machine room outside the refrigerator and connected to the pipe joint 14 without passing through the inside of the refrigerator. Therefore, the pipe joint 14 may loosen during long-term use of the refrigerator,
Even if the refrigerant pipe corrodes and the refrigerant gas leaks, all of the leaked gas does not diffuse to the outside of the refrigerator and enter the inside of the cabinet 1. This allows the refrigerant of the refrigerator to be a flammable alternative refrigerant (carbonization). Even when a hydrogen-based refrigerant is used, accidents such as ignition and explosion can be prevented and safety can be ensured.

【0017】なお、図示実施例では、冷媒ガス漏れに対
する安全対策として、蒸発器12を布設したキャビネッ
ト1の断熱壁内部,およびコンデンシングユニット9を
設置した機械室内にガスセンサ15を配置し、自動販売
機の稼働中に冷媒漏れが万一生じた場合には、ガスセン
サ15の検知信号で冷凍機の運転を停止するようにして
いる。
In the illustrated embodiment, as a safety measure against the refrigerant gas leakage, the gas sensor 15 is arranged inside the heat insulating wall of the cabinet 1 in which the evaporator 12 is installed and in the machine room in which the condensing unit 9 is installed, and the vending machine is automatically sold. If a refrigerant leaks during operation of the machine, the operation of the refrigerator is stopped by the detection signal of the gas sensor 15.

【0018】次に、本発明の請求項3に対応する応用実
施例の構成を図3に示す。この実施例においては、先記
した冷却プレート12aと冷媒管12bからなるプレー
ト形の蒸発器12をその冷却プレート12の表側面を庫
内に向けてキャビネット1の庫内底面側に布設し、ここ
に流れる庫内空気を冷却するようにしている。また、図
4,図5は、前記実施例で述べた蒸発器12の冷却プレ
ート12aと庫内空気との熱交換効率を高めるようにし
た本発明の請求項5,6に対応する実施例を示すもので
ある。
Next, FIG. 3 shows the configuration of an applied embodiment corresponding to claim 3 of the present invention. In this embodiment, the plate-shaped evaporator 12 including the cooling plate 12a and the refrigerant pipe 12b described above is laid on the bottom surface side of the cabinet 1 of the cabinet 1 with the front side of the cooling plate 12 facing the interior. The inside air flowing to the room is cooled. Further, FIGS. 4 and 5 show an embodiment corresponding to claims 5 and 6 of the present invention in which the heat exchange efficiency between the cooling plate 12a of the evaporator 12 and the air inside the refrigerator described in the above embodiment is improved. It is shown.

【0019】ここで、図4の構成では、冷却プレート1
2aの表面側に、庫内側に通風する循環空気流に沿って
伝熱フィン12cを設け、循環空気流との接触面積を増
して熱交換性能を高めるようにしている。一方、図5の
構成では、図4の伝熱フィン12cに加えて、伝熱フィ
ン12cを取り囲むようにして冷却プレート12aの表
側面に金属製の導風ダクト12dを設けており、この導
風ダクト12dが図1,図2に示した庫内側の吸込ダク
ト8を兼ねて庫内の循環空気と蒸発器12との伝熱面積
を大きくしている。
Here, in the configuration of FIG. 4, the cooling plate 1
Heat transfer fins 12c are provided on the surface side of 2a along the circulating air flow that ventilates the inside of the refrigerator to increase the contact area with the circulating air flow and enhance the heat exchange performance. On the other hand, in the configuration of FIG. 5, in addition to the heat transfer fins 12c of FIG. 4, a metal air duct 12d is provided on the front surface of the cooling plate 12a so as to surround the heat transfer fins 12c. The duct 12d doubles as the suction duct 8 on the inside of the refrigerator shown in FIGS. 1 and 2 to increase the heat transfer area between the circulating air in the refrigerator and the evaporator 12.

【0020】[0020]

【発明の効果】以上述べたように、本発明によれば、断
熱筐体になるキャビネットに対して、その庫内に商品収
納ラックを収設するとともに、庫外側には冷凍機のコン
デンシングユニットを搭載し、該冷凍機の蒸発器と熱交
換した庫内空気を庫内に循環送風して収納商品を保冷す
るようにした自動販売機の庫内冷却装置において、前記
蒸発器を、冷却パネルの裏側面に冷媒管を伝熱的に配管
した構成となし、かつ前記冷却パネルの表側面を庫内側
に露呈させてキャビネットの断熱壁に装着するととも
に、冷凍機のコンデンシングユニットから引出した冷媒
配管と蒸発器の冷媒管とを庫内を引き回すことなく庫外
側にて相互接続したことにより、次記の効果を奏する。
As described above, according to the present invention, a product storage rack is housed in a cabinet that serves as a heat-insulating housing, and a condensing unit for a refrigerator is provided outside the cabinet. In an in-compartment cooling device of a vending machine, in which the in-compartment air that has exchanged heat with the evaporator of the refrigerator is circulated to the inside of the container to cool the stored products, the evaporator is a cooling panel. With a configuration in which a refrigerant pipe is heat-transferred on the back side of the cooling panel, and while the front side of the cooling panel is exposed to the inside of the cabinet and attached to the heat insulating wall of the cabinet, the refrigerant drawn from the condensing unit of the refrigerator By connecting the pipe and the refrigerant pipe of the evaporator to each other on the outside of the refrigerator without having to run the inside of the refrigerator, the following effects can be obtained.

【0021】(1) 冷凍機の蒸発器がキャビネットの庫内
スペースを占有することがなく、これにより従来の蒸発
器構造と比べて庫内に生じるデッドスペースを大幅に縮
減して商品収納効率を高めることができる。 (2) 蒸発器の冷媒管は、庫内空間から隔離した上で、コ
ンデンシングユニットの間を庫外側で接続されており、
長期運転の間に冷媒配管の腐食,あるいは管継手に緩み
が生じて冷媒ガスが万一漏れても、漏洩した冷媒ガスが
庫内に侵入するおそれはない。これにより、冷媒として
可燃性のある炭化水素系の代替冷媒を使用した冷凍機で
も十分に安全性を確保できる。
(1) Since the evaporator of the refrigerator does not occupy the space inside the cabinet, the dead space generated in the refrigerator is greatly reduced as compared with the conventional evaporator structure, and the product storage efficiency is improved. Can be increased. (2) The refrigerant pipe of the evaporator is isolated from the space inside the refrigerator and connected between the condensing units on the outside of the refrigerator,
Even if the refrigerant gas leaks due to corrosion of the refrigerant pipe or loosening of the pipe joint during long-term operation, there is no possibility that the leaked refrigerant gas will enter the inside of the refrigerator. As a result, it is possible to sufficiently secure the safety even in a refrigerator using a flammable hydrocarbon-based alternative refrigerant as the refrigerant.

【0022】(3) また、前記構成の蒸発器の冷却パネル
に伝熱フィン,導風ダクトを設けた請求項5,6の構成
によれば、蒸発器と庫内循環空気流との伝熱面積が増し
て熱交換効率がより一層向上する。
(3) According to the constitution of claims 5 and 6, wherein the heat transfer fins and the air guide duct are provided on the cooling panel of the evaporator of the above constitution, the heat transfer between the evaporator and the circulating air flow in the refrigerator. The area is increased and the heat exchange efficiency is further improved.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例による自動販売機の庫内冷却装
置の構成配置図で、(a) は自動販売機全体の側視断面
図、(b) は(a) における蒸発器装着部分の拡大断面図
FIG. 1 is a configuration layout view of a refrigerator for a vending machine according to an embodiment of the present invention, in which (a) is a side sectional view of the entire vending machine, and (b) is an evaporator mounting portion in (a). Enlarged sectional view of

【図2】図1(a) の正面図FIG. 2 is a front view of FIG.

【図3】本発明の異なる実施例による自動販売機の庫内
冷却装置の構成配置図
FIG. 3 is a layout view of a refrigerator for a vending machine according to another embodiment of the present invention.

【図4】蒸発器の冷却パネルに伝熱フィンを設けた実施
例の構成図
FIG. 4 is a configuration diagram of an embodiment in which heat transfer fins are provided on a cooling panel of an evaporator.

【図5】蒸発器の冷却パネルに伝熱フィンおよび導風ダ
クトを設けた実施例の構成図
FIG. 5 is a configuration diagram of an embodiment in which a heat transfer fin and a wind guide duct are provided on a cooling panel of an evaporator.

【図6】自動販売機の従来における庫内冷却装置の構成
配置図
FIG. 6 is a configuration layout diagram of a conventional refrigerator in a vending machine.

【符号の説明】[Explanation of symbols]

1 キャビネット 4 商品収納ラック 9 冷凍機のコンデンシングユニット 10 冷媒配管 11 商品 12 蒸発器 12a 冷却パネル 12b 冷媒管 12c 伝熱フィン 12d 導風ダクト 1 cabinet 4 product storage racks 9 Refrigerator condensing unit 10 Refrigerant piping 11 products 12 Evaporator 12a cooling panel 12b Refrigerant tube 12c heat transfer fin 12d wind duct

───────────────────────────────────────────────────── フロントページの続き (72)発明者 高田 隆一 神奈川県川崎市川崎区田辺新田1番1号 富士電機株式会社内 Fターム(参考) 3E044 AA01 FB11 FB12 FB20    ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Ryuichi Takada             1-1 Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa             Within Fuji Electric Co., Ltd. F term (reference) 3E044 AA01 FB11 FB12 FB20

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】断熱筐体になるキャビネットに対して、そ
の庫内に商品収納ラックを収設するとともに、庫外側に
は冷凍機のコンデンシングユニットを搭載し、該冷凍機
の蒸発器と熱交換した庫内空気を庫内に循環送風して収
納商品を保冷するようにした自動販売機の庫内冷却装置
において、 前記蒸発器を、冷却パネルの裏側面に冷媒管を伝熱的に
配管した構成となし、かつ前記冷却パネルの表側面を庫
内側に露呈させてキャビネットの断熱壁に装着するとと
もに、冷凍機のコンデンシングユニットから引出した冷
媒配管と蒸発器の冷媒管とを庫内を引き回すことなく庫
外側にて相互接続したことを特徴とする自動販売機の庫
内冷却装置。
1. A cabinet serving as a heat-insulating housing, in which a product storage rack is housed, and a refrigerator condensing unit is mounted on the outside of the cabinet, and an evaporator and heat of the refrigerator are installed. An in-compartment cooling device for a vending machine, which circulates the exchanged in-compartment air to keep the stored products cool, wherein the evaporator is heat-transferring a refrigerant pipe to the back side of the cooling panel. With the above configuration, and while exposing the front side surface of the cooling panel to the inside of the cabinet and mounting it on the heat insulating wall of the cabinet, the refrigerant pipe drawn out from the condensing unit of the refrigerator and the refrigerant pipe of the evaporator are stored in the refrigerator. An internal cooling device for vending machines, characterized in that they are connected to each other on the outside of the refrigerator without being routed.
【請求項2】請求項1記載の庫内冷却装置において、蒸
発器の冷却パネルをキャビネットの庫内背面壁に沿わせ
て装着したことを特徴とする自動販売機の庫内冷却装
置。
2. An in-compartment cooling system for an automatic vending machine according to claim 1, wherein a cooling panel of the evaporator is mounted along a rear wall of the interior of the cabinet.
【請求項3】請求項1記載の庫内冷却装置において、蒸
発器の冷却パネルをキャビネットの庫内底面壁に沿わせ
て装着したことを特徴とする自動販売機の庫内冷却装
置。
3. An in-compartment cooling device for an automatic vending machine according to claim 1, wherein a cooling panel of the evaporator is mounted along a bottom wall of the interior of the cabinet.
【請求項4】請求項1ないし3のいずれかに記載の庫内
冷却装置において、冷却パネルの周縁とキャビネットの
断熱壁面との間にパッキンを介挿して両者間をシールし
たことを特徴とする自動販売機の庫内冷却装置。
4. The refrigerator according to any one of claims 1 to 3, wherein a packing is inserted between the peripheral edge of the cooling panel and the heat insulating wall surface of the cabinet to seal the two. Cooling system inside the vending machine.
【請求項5】請求項1ないし4のいずれかに記載の庫内
冷却装置において、冷却パネルの表側面に庫内空気の送
風方向に沿って延在する伝熱フィンを設けたことを特徴
とする自動販売機の庫内冷却装置。
5. The internal cooling device according to any one of claims 1 to 4, wherein heat transfer fins extending along a blowing direction of the internal air are provided on a front surface of the cooling panel. Cooling system for vending machines.
【請求項6】請求項5記載の庫内冷却装置において、伝
熱フィンを包囲して冷却パネルに庫内空気の導風ダクト
を設けたことを特徴とする自動販売機の庫内冷却装置。
6. An in-compartment cooling device for an automatic vending machine according to claim 5, wherein the heat transfer fins are surrounded and a cooling panel is provided with an air duct for in-compartment air.
JP2002002890A 2002-01-10 2002-01-10 Internal cooling device for vending machine Pending JP2003208662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002002890A JP2003208662A (en) 2002-01-10 2002-01-10 Internal cooling device for vending machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002002890A JP2003208662A (en) 2002-01-10 2002-01-10 Internal cooling device for vending machine

Publications (1)

Publication Number Publication Date
JP2003208662A true JP2003208662A (en) 2003-07-25

Family

ID=27642627

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002002890A Pending JP2003208662A (en) 2002-01-10 2002-01-10 Internal cooling device for vending machine

Country Status (1)

Country Link
JP (1) JP2003208662A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005192448A (en) * 2004-01-05 2005-07-21 Yae Kogyo:Kk Freshness-retaining apparatus
JP2009282673A (en) * 2008-05-21 2009-12-03 Fuji Electric Retail Systems Co Ltd Vending machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005192448A (en) * 2004-01-05 2005-07-21 Yae Kogyo:Kk Freshness-retaining apparatus
JP2009282673A (en) * 2008-05-21 2009-12-03 Fuji Electric Retail Systems Co Ltd Vending machine

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