JP3720889B2 - vending machine - Google Patents

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Publication number
JP3720889B2
JP3720889B2 JP30955195A JP30955195A JP3720889B2 JP 3720889 B2 JP3720889 B2 JP 3720889B2 JP 30955195 A JP30955195 A JP 30955195A JP 30955195 A JP30955195 A JP 30955195A JP 3720889 B2 JP3720889 B2 JP 3720889B2
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Japan
Prior art keywords
duct
air
vending machine
opening
internal
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JPH09147211A (en
Inventor
健仁 棚井
浩司 滝口
亮 関口
智昭 山崎
大 野口
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Fuji Electric Retail Systems Co Ltd
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Fuji Electric Retail Systems Co Ltd
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Priority to JP30955195A priority Critical patent/JP3720889B2/en
Priority to KR1019960057785A priority patent/KR0184660B1/en
Publication of JPH09147211A publication Critical patent/JPH09147211A/en
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F9/00—Details other than those peculiar to special kinds or types of apparatus
    • G07F9/10—Casings or parts thereof, e.g. with means for heating or cooling
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、商品を冷却または加温すべく商品収納庫内を循環する循環エアーの経路の一部に庫内ダクトを配設した自動販売機のダクト装置に関するものである。
【０００２】
【従来の技術】
図６は、従来の自動販売機における循環エアーの流れを表している。商品収納庫６１の下部には、熱交換部であるエバポレータ６２およびヒータ６３が設けられており、冷却または加温を行えるようになっている。エバポレータ６２およびヒータ６３の前側にはファン６４が配設され、このファン６４の送風により、エアーが商品収納庫６１内を循環する。また、エバポレータ６２およびヒータ６３の後側には庫内ダクト６５が接続されている。庫内ダクト６５は、商品収納庫６１内の後壁６６に沿わせて上下方向に延在し、上端に吸気口６５ａが、下端にエバポレータ６２およびヒータ６３に直結する排気口６５ｂが設けられている。
【０００３】
熱交換部を通過してファン６４から吹き出された循環エアーは、前方に導かれた後、上方に導かれ、商品コラム６７内の商品を冷却または加温する。更に循環エアーは後方に導かれた後、庫内ダクト６５に吸い込まれ、熱交換部に戻る。このように、循環エアーの循環経路の一部に庫内ダクト６５を設けることにより、
循環エアーのショートサーキットが防止されるようになっている。
【０００４】
【発明が解決しようとする課題】
このような従来の自動販売機では、庫内ダクト６５により、商品収納庫６１内
を循環する循環エアーのショートサーキットを防止することができるが、庫内ダクト６５の吸気口６５ａが１箇所しか無いため、この吸気口６５ａを商品収納庫６１の上部、中間部或いは下部のいずれの位置に配設しても、循環エアーの循環経路が偏り、商品を効率よく冷却または加温することが難しかった。また、販売順の早い商品コラム６７の下部に収容されている商品を、他の部分の商品よりも加重して冷却または加温するなどの微調整も難しかった。
【０００５】
本発明は、熱交換部やファンに対する負荷を増大させることなく、商品を効率よく冷却または加温することができる自動販売機のダクト装置を提供することをその目的としている。
【０００６】
【課題を解決するための手段】
請求項１の自動販売機のダクト装置は、商品収納庫内の後壁に沿わせて上下方向に延在する庫内ダクトを備え、庫内ダクトにより商品コラムを通過した循環エアーを熱交換部まで導くようにした自動販売機のダクト装置において、庫内ダクトは、上端部に開口した第１吸気口および下端部に開口し熱交換部に直結する第１排気口を有する第１ダクトと、上端部に開口した第２吸気口および下端部に開口し熱交換部に直結する第２排気口を有する第２ダクトとから成り、第１吸気口は第２吸気口より高い位置に配設されていることを特徴とする。
【０００７】
この構成によれば、商品コラムを通過した循環エアーは、第１ダクトの上端部の第１吸気口と第２ダクトの上端部の第２吸気口との２箇所から吸引される。この場合、第１吸気口と第２吸気口とは異なる高さ位置に配設されているため、循環エアーの流れが上下方向において比較的均一化する。また、第１吸気口からの吸気量と第２吸気口からの吸気量との比率を簡単に調整することができる。しかも、第１ダクトと第２ダクトとは独立しているため、これらの合計の摩擦損失は、合流形式のダクトの摩擦損失より小さくなり、その分、ファンの負荷を軽減することができる。
【０００８】
請求項２の自動販売機のダクト装置において、第２ダクトは、第１ダクトを挟んで左右に配設された一対のエアー通路で構成されていることが、好ましい。
【０００９】
この構成によれば、庫内ダクトの奥行き寸法を大きくすることなく、相互に独立した第１ダクトおよび第２ダクトを配設することができ、かつ循環エアーの循環経路を左右方向においても均一化することができる。
【００１０】
請求項３の自動販売機のダクト装置は、商品収納庫内の後壁に沿わせて上下方向に延在する庫内ダクトを備え、庫内ダクトにより商品コラムを通過した循
環エアーを熱交換部まで導くようにした自動販売機のダクト装置において、庫内ダクトは、上端部に開口した吸気口と、下端部に開口し熱交換部に直結する排気口とを有し、庫内ダクトの下端部は、排気口に向かって断面積が徐々に拡開形状に形成されていることを特徴とする。
【００１１】
この構成によれば、庫内ダクトから熱交換部に流れる循環エアーが層流となり易く、すなわち庫内ダクトの断面積が徐々に大きくなるため、庫内ダクトの摩擦損失を小さくすることができる。これにより、ファンの負荷を軽減することができる。
【００１２】
【発明の実施の形態】
以下、添付図面を参照して、本発明の第１実施形態に係るダクト装置を適用した自動販売機について説明する。図１および図２に示すように、この自動販売機１は、販売機本体２と、販売機本体２の前面に開閉自在に取り付けたメインドア３とで構成されている。販売機本体２の内部には、前面に断熱ドア４を有する商品収納庫５が広く設けられており、商品収納庫５内には、商品を充填した商品コラム６が収容されている。
【００１３】
商品収納庫５内において、商品コラム６の下方にはシュート７が設けられており、シュート７の下側には、エアーを循環させるファン８と、熱交換部を構成する電気ヒータ９およびエバポレータ１０とが、横並びに配設されている。また、エバポレータ１０の後側には庫内ダクト１１が配設され、庫内ダクト１１は商品収納庫５内の後壁５ａに沿って上下方向に延在している。この場合、電気ヒータ９を駆動することにより商品の加温が行われ、エバポレータ１０を駆動することにより商品の冷却が行われる。なお、図示しないが、商品収納庫５の下側空間には冷却ユニット（外部ユニット）が配設され、エバポレータ１０はこの冷却ユニットに接続されている。
【００１４】
庫内ダクト１１は、ダクト本体２１と、ダクト本体２１の下側に連結したチャンバ部２２とで構成されており、ダクト本体２１の上端には第１吸気口２３が、中間部には第２吸気口２４が、そしてチャンバ部２２の前端には排気口２５が形成されている。第１吸気口２３はダクト本体２１の端部を開放したものであり、商品収納庫５のほぼ中間の高さ位置に配設されている。第２吸気口２４は、ダクト本体２１の中間位置に形成した丸孔２４ａであり、本実施形態の第２吸気口２４は、４個の丸孔２４ａで構成されている（図２参照）。排気口２５はエバポレータ１０に直結しており、チャンバ部２２と協働して、エバポレータ１０および電気ヒータ９にエアーを安定に導く。なお、第２吸気口２４を複数の角孔やスリットで構成してもよい。
【００１５】
ここで、エアーの流れについて説明する。エバポレータ１０および電気ヒータ９の部分を通過してファン８から吹き出されたエアーは、シュート７に形成したスリットを通過して前方に導かれ、さらに上方に導かれて商品コラム６に至る。商品コラム６の内部を通過しながら上昇した空気は、その一部が商品コラム６の内部を後方に向かい第２吸気口２４に吸気される。また残りのエアーはさらに上昇した後、商品コラム６の内部を後方に向かい第１吸気口２３に吸気される。第１吸気口２３に吸気されたエアーと、第２吸気口２４に吸気されたエアーとは、ダクト本体２１内で合流し、チャンバ部２２から排気口２５を経てエバポレータ１０および電気ヒータ９の部分に戻る。
【００１６】
以上のように第１実施形態によれば、エアーが商品収納庫５の中間部に位置する第１吸気口２３、および下部に位置する第２吸気口２４の上下２箇所から吸気されるため、これに伴って、商品コラム６の中間部を横断するエアーと下部を横断するエアーとの２つの流れが生じ、商品を比較的均一に加温または冷却することができる。また、第２吸気口２４を介して、商品コラム６の下部に積極的にエアーを導くことにより、販売順の早い商品を積極的に加温または冷却することができ、商品を効率よく加温または冷却することができる。また、第２吸気口２４を構成する丸孔２４ａの数や径を適宜調整することにより、第１吸気口２３からの吸気量と第２吸気口２４からの吸気量との比率を調整するこができ、すなわち、商品コラム６の中間部を横断するエアーの量と下部を横断するエアーの量との比率を、調整することができる。
【００１７】
次に、図３および図４を参照して、本発明の第２実施形態について説明する。この実施形態における庫内ダクト１１は、背の高い第１ダクト３１と背の低い第２ダクト３２とで構成されている。第１ダクト３１および第２ダクト３２は、一部の壁面を共用して相互に独立に形成されている。すなわち、第２ダクト３２は、第１ダクト３１を挟むように左右一対のエアー通路３２ａ，３２ａで構成されている。第１ダクト３１の上端には第１吸気口３３が、第２ダクト３２の上端には一対の第２吸気口３４．，３４が、それぞれ開口している。第１ダクト３１および第２ダクト３２の下側には、両ダクト３１，３２が共有するチャンバ部３５となっており、チャンバ部３５の前端には、両ダクト３１，３２が共有する排気口３６が形成されている。
【００１８】
このような構成では、商品コラム６の内部を通過しながら上昇した空気は、その一部が商品コラム６の内部を後方に向かい第２ダクト３２の第２吸気口３４に吸気され、また残りのエアーはさらに上昇した後、商品コラム６の内部を後方に向かい第１ダクト３１の第１吸気口３３に吸気される。第１吸気口３３に吸気されたエアーと、第２吸気口３４に吸気されたエアーとは、チャンバ部３５に至り、ここで合流して排気口３６からエバポレータ１０および電気ヒータ９の部分に戻る。
【００１９】
以上のように第１実施形態によれば、第１ダクト３１と第２ダクト３２により、エアーが商品収納庫５の上部および中間部の上下２箇所から吸引されるため、これに伴って、商品コラム６の上部を横断するエアーと中間部を横断するエアーとの２つの流れが生じ、商品を比較的均一に加温または冷却することができる。また、両ダクト３１，３２の断面積を適宜調整することにより、商品コラム６の上部を横断するエアーの量と中間部を横断するエアーの量との比率を、調整することができる。一方、第１ダクト３１と第２ダクト３２とを相互に独立に構成しているので、摩擦損失が小さくなりファン８の負荷を低減することができる。
【００２０】
次に、図５を参照して、本発明の第３実施形態について説明する。この実施形態における庫内ダクト１１は、上端に吸気口４１を有すると共に、下部前端に排気口４２を有し、ダクト本体４３とチャンバ部４４とが一体化された構造になっている。チャンバ部４４の前板４４ａは湾曲しながら排気口４２まで延びており、チャンバ部４４は、排気口４２に向かって拡開形状に形成されている。
【００２１】
このような構成では、チャンバ部４４の断面積が排気口４２に向かって徐々に大きくなるため、ダクト本体４３からチャンバ部４４を経て排気口４２に至るエアーの流れが、層流となり易く、直角にカーブするエアーの流れを円滑な流れにすることができる。このため、庫内ダクト１１の摩擦損失を小さくすることがで
き、ひいてはファン８の負荷を低減することができる。なお、上記の前板４４ａを斜め直線状に形成してもよい。
【００２２】
【発明の効果】
以上のように請求項１の自動販売機のダクト装置によれば、商品コラムを通過してくる循環エアーを上下２箇所で吸気するようにしているので、循環エアーの流れを均一化することができ、熱交換部やファンに対する負荷を増大させることなく、かつ簡単な構成で、商品を効率よく冷却または加温することができる。
【００２３】
また、循環エアーを上下２箇所で吸気するようにしているので、循環エアーの流れを均一化することができ、簡単な構成で、商品を効率よく冷却または加温することができ、またファンの負荷を低減することができる。
【００２４】
さらに、請求項３の自動販売機のダクト装置によれば、ファンの負荷を低減することができると共に、循環エアーの流れを円滑化にすることができる。
【図面の簡単な説明】
【図１】 本発明の第１実施形態に係るダクト装置を備えた自動販売機の縦断面図である。
【図２】 第１実施形態に係るダクト装置を備えた自動販売機の庫内の正面図である。
【図３】 本発明の第２実施形態に係るダクト装置を備えた自動販売機の縦断面図である。
【図４】 第２実施形態に係るダクト装置を備えた自動販売機の庫内の正面図である。
【図５】 本発明の第３実施形態に係るダクト装置を備えた自動販売機の縦断面図である。
【図６】 従来のダクト装置を備えた自動販売機の縦断面図である。
【符号の説明】
１ 自動販売機
５ 商品収容庫
５ａ 後壁
６ 商品コラム
８ ファン
９ 電気ヒータ
１０ エバポレータ
１１ 庫内ダクト
２３ 第１吸気口
２４ 第２吸気口
２５ 排気口
３１ 第１ダクト
３２ 第２ダクト
３３ 第１吸気口
３４ 第２吸気口
３６ 排気口
４１ 吸気口
４２ 排気口
４４ チャンバ部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a duct device of a vending machine in which an internal duct is disposed in a part of a circulation air path that circulates in a commodity storage in order to cool or warm the commodity.
[0002]
[Prior art]
FIG. 6 shows the flow of circulating air in a conventional vending machine. An evaporator 62 and a heater 63, which are heat exchange parts, are provided in the lower part of the product storage 61 so that cooling or heating can be performed. A fan 64 is disposed in front of the evaporator 62 and the heater 63, and air circulates in the product storage 61 by the air blown by the fan 64. In addition, an internal duct 65 is connected to the rear side of the evaporator 62 and the heater 63. The internal duct 65 extends in the vertical direction along the rear wall 66 in the product storage 61, and has an intake port 65a at the upper end and an exhaust port 65b directly connected to the evaporator 62 and the heater 63 at the lower end. Yes.
[0003]
The circulating air that has passed through the heat exchanging section and is blown out from the fan 64 is guided forward, and then is guided upward to cool or heat the products in the product column 67. Furthermore, after circulating air is led back, it is sucked into the internal duct 65 and returns to the heat exchange section. Thus, by providing the internal duct 65 in a part of the circulation path of the circulating air,
A short circuit of circulating air is prevented.
[0004]
[Problems to be solved by the invention]
In such a conventional vending machine, the short circuit of the circulating air circulating in the product storage 61 can be prevented by the internal duct 65, but there is only one intake port 65a of the internal duct 65. For this reason, even if this intake port 65a is disposed at any of the upper, middle or lower positions of the product storage 61, the circulation path of the circulating air is biased and it is difficult to efficiently cool or heat the product. . In addition, it is difficult to make fine adjustments such as cooling or heating the products housed in the lower part of the product column 67 in the order of sales more heavily than other products.
[0005]
An object of the present invention is to provide a duct device for a vending machine capable of efficiently cooling or heating a product without increasing a load on a heat exchange unit or a fan.
[0006]
[Means for Solving the Problems]
The duct device of the vending machine according to claim 1 includes an internal duct extending vertically along the rear wall in the commodity storage, and circulating air that has passed through the commodity column by the internal duct is exchanged with the heat exchanger. In the duct device of the vending machine that guides to the first duct, the internal duct has a first intake port that opens at the upper end portion and a first exhaust port that opens at the lower end portion and is directly connected to the heat exchange portion, It consists of a second intake opening that opens at the upper end and a second duct that has a second exhaust opening that opens at the lower end and is directly connected to the heat exchanging section. The first intake is arranged at a position higher than the second intake. It is characterized by.
[0007]
According to this configuration, the circulating air that has passed through the commodity column is sucked from two places, that is, the first air inlet at the upper end of the first duct and the second air inlet at the upper end of the second duct. In this case, since the first intake port and the second intake port are disposed at different height positions, the flow of the circulating air becomes relatively uniform in the vertical direction. Further, the ratio between the intake air amount from the first intake port and the intake air amount from the second intake port can be easily adjusted. Moreover, since the first duct and the second duct are independent, the total friction loss is smaller than the friction loss of the merged duct , and the load on the fan can be reduced accordingly.
[0008]
In the duct device for a vending machine according to claim 2, it is preferable that the second duct is constituted by a pair of air passages arranged on the left and right sides of the first duct.
[0009]
According to this configuration, the first duct and the second duct independent from each other can be disposed without increasing the depth dimension of the internal duct, and the circulation path of the circulating air is made uniform in the left-right direction as well. can do.
[0010]
The duct device of the vending machine according to claim 3 includes an internal duct extending vertically along the rear wall in the commodity storage, and circulating air that has passed through the commodity column by the internal duct is used as a heat exchanger. In the duct device of the vending machine, the internal duct has an intake port that opens at the upper end and an exhaust port that opens at the lower end and directly connects to the heat exchange unit, and the lower end of the internal duct The section is characterized in that the cross-sectional area is formed in a gradually expanding shape toward the exhaust port.
[0011]
According to this configuration, the circulating air flowing from the internal duct to the heat exchanging portion tends to be a laminar flow, that is, the sectional area of the internal duct gradually increases, so that the friction loss of the internal duct can be reduced. Thereby, the load of the fan can be reduced.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a vending machine to which a duct device according to a first embodiment of the present invention is applied will be described with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the vending machine 1 includes a vending machine body 2 and a main door 3 that is attached to the front surface of the vending machine body 2 so as to be freely opened and closed. Inside the vending machine body 2, a product storage 5 having a heat insulating door 4 on the front is widely provided. In the product storage 5, a product column 6 filled with products is stored.
[0013]
In the product storage 5, a chute 7 is provided below the product column 6, and below the chute 7, a fan 8 that circulates air, an electric heater 9 that constitutes a heat exchange unit, and an evaporator 10. Are arranged side by side. Further, an internal duct 11 is disposed on the rear side of the evaporator 10, and the internal duct 11 extends in the vertical direction along the rear wall 5 a in the commodity storage 5. In this case, the product is heated by driving the electric heater 9, and the product is cooled by driving the evaporator 10. Although not shown, a cooling unit (external unit) is disposed in the lower space of the product storage 5 and the evaporator 10 is connected to the cooling unit.
[0014]
The internal duct 11 includes a duct main body 21 and a chamber portion 22 connected to the lower side of the duct main body 21, and a first air inlet 23 is provided at the upper end of the duct main body 21, and a second air outlet is provided at the intermediate portion. An intake port 24 and an exhaust port 25 are formed at the front end of the chamber portion 22. The first air inlet 23 is formed by opening the end of the duct main body 21, and is disposed at a substantially middle height position of the commodity storage 5. The 2nd inlet 24 is the round hole 24a formed in the intermediate position of the duct main body 21, and the 2nd inlet 24 of this embodiment is comprised by the four round holes 24a (refer FIG. 2). The exhaust port 25 is directly connected to the evaporator 10 and stably guides air to the evaporator 10 and the electric heater 9 in cooperation with the chamber portion 22. In addition, you may comprise the 2nd inlet 24 with a some square hole or a slit.
[0015]
Here, the flow of air will be described. The air blown from the fan 8 after passing through the evaporator 10 and the electric heater 9 passes through a slit formed in the chute 7 and is guided forward, and further guided upward to reach the product column 6. A portion of the air that has risen while passing through the interior of the product column 6 is sucked into the second air inlet 24 toward the rear of the product column 6. Further, the remaining air further rises, and then is sucked into the first air inlet 23 toward the rear through the interior of the product column 6. The air sucked into the first air inlet 23 and the air sucked into the second air inlet 24 merge in the duct body 21, and the portions of the evaporator 10 and the electric heater 9 from the chamber portion 22 through the exhaust port 25. Return to.
[0016]
As described above, according to the first embodiment, air is sucked from the upper and lower portions of the first intake port 23 located in the middle part of the product storage 5 and the second intake port 24 located in the lower part. Along with this, two flows of air crossing the middle part of the product column 6 and air crossing the lower part are generated, and the product can be heated or cooled relatively uniformly. In addition, by actively guiding air to the lower part of the product column 6 through the second air inlet 24, it is possible to actively heat or cool the products in the order of sales, and efficiently heat the products. Or it can be cooled. Further, the ratio between the intake air amount from the first intake port 23 and the intake air amount from the second intake port 24 can be adjusted by appropriately adjusting the number and diameter of the round holes 24 a constituting the second intake port 24. That is, the ratio of the amount of air crossing the middle part of the product column 6 and the amount of air crossing the lower part can be adjusted.
[0017]
Next, a second embodiment of the present invention will be described with reference to FIGS. The internal duct 11 in this embodiment includes a tall first duct 31 and a short second duct 32. The first duct 31 and the second duct 32 share a part of the wall surface and are formed independently of each other. That is, the second duct 32 includes a pair of left and right air passages 32 a and 32 a so as to sandwich the first duct 31. A first air inlet 33 is provided at the upper end of the first duct 31, and a pair of second air inlets 34. , 34 are open. Below the first duct 31 and the second duct 32 is a chamber portion 35 shared by both the ducts 31, 32, and at the front end of the chamber portion 35, an exhaust port 36 shared by both the ducts 31, 32. Is formed.
[0018]
In such a configuration, a part of the air rising while passing through the inside of the product column 6 is sucked into the second intake port 34 of the second duct 32 toward the rear through the inside of the product column 6, and the rest After the air further rises, the air flows backward through the product column 6 and is sucked into the first air inlet 33 of the first duct 31. The air sucked into the first air inlet 33 and the air sucked into the second air inlet 34 reach the chamber portion 35 where they merge and return from the exhaust port 36 to the evaporator 10 and the electric heater 9. .
[0019]
As described above, according to the first embodiment, the first duct 31 and the second duct 32 cause air to be sucked from the upper and lower portions of the upper part and the middle part of the product storage case 5. Two flows of air crossing the upper part of the column 6 and air crossing the intermediate part are generated, and the product can be heated or cooled relatively uniformly. In addition, by appropriately adjusting the cross-sectional areas of both the ducts 31 and 32, the ratio of the amount of air that traverses the upper part of the product column 6 and the amount of air that traverses the intermediate portion can be adjusted. On the other hand, since the first duct 31 and the second duct 32 are configured independently of each other, the friction loss is reduced and the load on the fan 8 can be reduced.
[0020]
Next, a third embodiment of the present invention will be described with reference to FIG. The internal duct 11 in this embodiment has an intake port 41 at the upper end and an exhaust port 42 at the lower front end, and has a structure in which the duct body 43 and the chamber portion 44 are integrated. The front plate 44 a of the chamber portion 44 extends to the exhaust port 42 while being curved, and the chamber portion 44 is formed in an expanded shape toward the exhaust port 42.
[0021]
In such a configuration, since the cross-sectional area of the chamber portion 44 gradually increases toward the exhaust port 42, the air flow from the duct main body 43 through the chamber portion 44 to the exhaust port 42 tends to be a laminar flow, and is perpendicular. The flow of air that curves in a smooth flow can be achieved. For this reason, the friction loss of the internal duct 11 can be reduced, and the load on the fan 8 can be reduced. Note that the front plate 44a may be formed in an oblique linear shape.
[0022]
【The invention's effect】
As described above, according to the duct device of the vending machine according to the first aspect, since the circulating air passing through the commodity column is sucked in the upper and lower portions, the flow of the circulating air can be made uniform. The product can be efficiently cooled or heated without increasing the load on the heat exchange unit and the fan and with a simple configuration.
[0023]
In addition, since the circulating air is drawn in at two locations, the flow of the circulating air can be made uniform, the product can be cooled or heated efficiently with a simple configuration, and the fan The load can be reduced.
[0024]
Furthermore, according to the duct device of the vending machine according to the third aspect , the load on the fan can be reduced and the flow of the circulating air can be made smooth.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a vending machine including a duct device according to a first embodiment of the present invention.
FIG. 2 is a front view of the interior of the vending machine including the duct device according to the first embodiment.
FIG. 3 is a longitudinal sectional view of a vending machine provided with a duct device according to a second embodiment of the present invention.
FIG. 4 is a front view of a vending machine equipped with a duct device according to a second embodiment.
FIG. 5 is a longitudinal sectional view of a vending machine including a duct device according to a third embodiment of the present invention.
FIG. 6 is a longitudinal sectional view of a vending machine including a conventional duct device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vending machine 5 Commodity storage container 5a Rear wall 6 Commodity column 8 Fan 9 Electric heater 10 Evaporator 11 Duct 23 First inlet 24 Second inlet 25 Exhaust 31 First duct 32 Second duct 33 First intake Port 34 Second air inlet 36 Air outlet 41 Air inlet 42 Air outlet 44 Chamber portion

Claims (3)

商品収納庫内の後壁に沿わせて上下方向に延在する庫内ダクトを備え、当該庫内ダクトにより商品コラムを通過した循環エアーを熱交換部まで導くようにした自動販売機のダクト装置において、前記庫内ダクトは、上端部に開口した第１吸気口および下端部に開口し熱交換部に直結する第１排気口を有する第１ダクトと、上端部に開口した第２吸気口および下端部に開口し熱交換部に直結する第２排気口を有する第２ダクトとから成り、前記第１吸気口は前記第２吸気口より高い位置に配設されていることを特徴とする自動販売機のダクト装置。 A duct device for a vending machine having an internal duct extending vertically along the rear wall in the product storage, and guiding the circulating air that has passed through the product column to the heat exchange section by the internal duct. The first duct having a first air inlet opening at the upper end, a first air outlet opening at the lower end and directly connected to the heat exchanging portion, a second air inlet opening at the upper end, and An automatic opening characterized by comprising a second duct having a second exhaust opening that opens at a lower end portion and is directly connected to a heat exchanging portion, and wherein the first intake opening is disposed at a position higher than the second intake opening. Ducting equipment for vending machines . 前記第２ダクトは、前記第１ダクトを挟んで左右に配設された一対のエアー通路で構成されていることを特徴とする請求項１に記載の自動販売機のダクト装置。 2. The vending machine duct device according to claim 1, wherein the second duct includes a pair of air passages arranged on the left and right sides of the first duct . 商品収納庫内の後壁に沿わせて上下方向に延在する庫内ダクトを備え、当該庫内ダクトにより商品コラムを通過した循環エアーを熱交換部まで導くようにした自動販売機のダクト装置において、前記庫内ダクトは、上端部に開口した吸気口と、下端部に開口し熱交換部に直結する排気口とを有し、前記庫内ダクトの下端部は、前記排気口に向かって断面積が徐々に拡開形状に形成されていることを特徴とする自動販売機のダクト装置。 A duct device for a vending machine having an internal duct extending vertically along the rear wall in the product storage, and guiding the circulating air that has passed through the product column to the heat exchange section by the internal duct. The internal duct has an air inlet opening at the upper end and an exhaust opening opening at the lower end and directly connected to the heat exchanging portion, and the lower end of the internal duct faces the exhaust opening A duct device for a vending machine, characterized in that its cross-sectional area is gradually formed into an expanded shape .
JP30955195A 1995-11-28 1995-11-28 vending machine Expired - Fee Related JP3720889B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP30955195A JP3720889B2 (en) 1995-11-28 1995-11-28 vending machine
KR1019960057785A KR0184660B1 (en) 1995-11-28 1996-11-26 Duct device of a vending machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30955195A JP3720889B2 (en) 1995-11-28 1995-11-28 vending machine

Publications (2)

Publication Number Publication Date
JPH09147211A JPH09147211A (en) 1997-06-06
JP3720889B2 true JP3720889B2 (en) 2005-11-30

Family

ID=17994382

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30955195A Expired - Fee Related JP3720889B2 (en) 1995-11-28 1995-11-28 vending machine

Country Status (2)

Country Link
JP (1) JP3720889B2 (en)
KR (1) KR0184660B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210068130A (en) 2018-11-13 2021-06-08 산덴 리테일 시스템 가부시키가이샤 vending machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7209925B2 (en) * 2018-11-13 2023-01-23 サンデン・リテールシステム株式会社 Column automatic setting device for goods vending machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210068130A (en) 2018-11-13 2021-06-08 산덴 리테일 시스템 가부시키가이샤 vending machine

Also Published As

Publication number Publication date
JPH09147211A (en) 1997-06-06
KR0184660B1 (en) 1999-04-15
KR970029200A (en) 1997-06-26

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