JP5304166B2 - vending machine - Google Patents

vending machine Download PDF

Info

Publication number
JP5304166B2
JP5304166B2 JP2008267010A JP2008267010A JP5304166B2 JP 5304166 B2 JP5304166 B2 JP 5304166B2 JP 2008267010 A JP2008267010 A JP 2008267010A JP 2008267010 A JP2008267010 A JP 2008267010A JP 5304166 B2 JP5304166 B2 JP 5304166B2
Authority
JP
Japan
Prior art keywords
vending machine
mounting bracket
fan
refrigerant
fan mounting
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.)
Expired - Fee Related
Application number
JP2008267010A
Other languages
Japanese (ja)
Other versions
JP2010097373A (en
Inventor
学司 若見
隆宏 井上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial 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 Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to JP2008267010A priority Critical patent/JP5304166B2/en
Publication of JP2010097373A publication Critical patent/JP2010097373A/en
Application granted granted Critical
Publication of JP5304166B2 publication Critical patent/JP5304166B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To reduce risk of explosion by surely discharging coolant leaking in a storage shed in a vending machine using flammable coolant for the coolant. <P>SOLUTION: An outside air introduction means 29 formed of a suction fan 26 and a ventilation flap 28 is installed at the upper part of an internal door, and when a leakage detection means 22 detects leakage, the suction fan 26 is operated to introduce outside air, and the coolant staying in the storage shed is discharged through a merchandise conveyance port and a drain water conveyance port. Thus, the coolant concentration in the storage shed is stably and quickly decreased. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

本発明は、缶飲料などの商品を冷却あるいは加温して販売する自動販売機において、冷却あるいは加温システムに使用する冷却システムに可燃性冷媒を用いた自動販売機に関するものである。   The present invention relates to a vending machine using a combustible refrigerant in a cooling system used for a cooling or heating system in a vending machine that sells products such as can drinks after cooling or heating.

近年、オゾン層保護および地球温暖化防止の観点から、イソブタンやプロパンなどの炭化水素からなる自然冷媒を使用した冷却システムが望まれている。自動販売機などの冷却貯蔵庫において可燃性のある炭化水素を冷媒として使用する際には防爆対応した電気部品などが用いられるが、さらに安全を高めるために冷媒の漏洩を検知して漏洩した冷媒を庫内背面に設けられた吸気口と吸気ダンパを用いて庫外に排出するものが提案されている(例えば、特許文献1参照)。   In recent years, a cooling system using a natural refrigerant made of hydrocarbons such as isobutane and propane has been desired from the viewpoint of protecting the ozone layer and preventing global warming. When using flammable hydrocarbons as a refrigerant in a cooling storage such as a vending machine, explosion-proof electrical components are used.To further enhance safety, the leakage of the refrigerant is detected by detecting the leakage of the refrigerant. There has been proposed one that discharges to the outside of the chamber using an intake port and an intake damper provided on the back surface of the chamber (for example, see Patent Document 1).

以下、図面を参照しながら従来の自動販売機を説明する。   Hereinafter, a conventional vending machine will be described with reference to the drawings.

図7は従来の自動販売機の縦断面図である。図7において、自動販売機本体101内に断熱構造の複数の貯蔵庫102を備え、各貯蔵庫102の下方には機械室103が配置されている。各貯蔵庫102内上部背面には、外気吸入口104、吸込ダンパ105が、貯蔵庫内背面下部には蒸発器106、庫内ファン107、排気口108、排気ダンパ109がそれぞれ設けられている。   FIG. 7 is a longitudinal sectional view of a conventional vending machine. In FIG. 7, the vending machine main body 101 is provided with a plurality of storages 102 having a heat insulating structure, and a machine room 103 is arranged below each storage 102. An outside air suction port 104 and a suction damper 105 are provided on the upper rear surface in each storage 102, and an evaporator 106, an internal fan 107, an exhaust port 108, and an exhaust damper 109 are provided on the lower rear surface in the storage.

貯蔵庫102内には、それぞれ商品収納コラム110が設置されている。また、貯蔵庫102は冷媒漏洩検知センサ111をそれぞれ蒸発器106の空気の下流側に配置され、冷媒を検知すると制御部に検知信号を出力されるようになっている。   A product storage column 110 is installed in each storage 102. Further, the storage 102 has a refrigerant leak detection sensor 111 disposed on the downstream side of the air of the evaporator 106, and when a refrigerant is detected, a detection signal is output to the control unit.

また、前記自動販売機は冷媒漏洩検知センサ111の検知信号に基づいて吸込ダンパ105及び排気ダンパ109をそれぞれ制御する制御部を備えている。制御部は、冷媒漏洩検知センサ111の検知信号が出力されると、吸込ダンパ105が開き、外気吸入口104より外気を導入するようになっている。   Further, the vending machine includes a control unit that controls the suction damper 105 and the exhaust damper 109 based on the detection signal of the refrigerant leak detection sensor 111. When the detection signal of the refrigerant leakage detection sensor 111 is output, the control unit opens the suction damper 105 and introduces outside air from the outside air inlet 104.

以上のように構成された自働販売機について、以下にその動作を説明する。   About the automatic vending machine comprised as mentioned above, the operation | movement is demonstrated below.

貯蔵庫102内で冷凍回路から冷媒が漏洩した場合、蒸発器106の下流側に配置した冷媒漏洩検知センサ111が漏洩を検知して、検知信号を制御部へと出力する。制御部は検知信号が出力されると、吸込ダンパ105を開放して、外気吸入口104より、外気を吸入する。また、同時に排気ダンパ109を開放することで貯蔵庫102内の空気を排気口108より出す。このことによって、冷媒が漏洩した際の漏洩した冷媒を外部に排出することができる。
特開2001−134827号公報
When the refrigerant leaks from the refrigeration circuit in the storage 102, the refrigerant leak detection sensor 111 disposed on the downstream side of the evaporator 106 detects the leak and outputs a detection signal to the control unit. When the detection signal is output, the control unit opens the suction damper 105 and sucks outside air from the outside air suction port 104. At the same time, by opening the exhaust damper 109, the air in the storage 102 is taken out from the exhaust port. Thereby, the leaked refrigerant when the refrigerant leaks can be discharged to the outside.
JP 2001-134827 A

しかしながら、背面に吸込ダンパを設けているため、故障時のメンテナンスの際、商品収納コラムを抜き取る必要があるために、メンテナンスが難しく、また、商品充填時に風路が商品により抵抗となるため、十分な風量が得られず、漏洩した冷媒を十分に庫外に排出できないといった課題があった。本発明は、従来の課題を解決するもので、断熱機能を損なわず、故障時のメンテナンスを容易にした上で安定して漏洩した冷媒を庫外に排出することができる自動販売機を提供することを目的とする。   However, since the suction damper is provided on the back, it is necessary to pull out the product storage column during maintenance in the event of a failure, so maintenance is difficult, and the air path becomes more resistant to the product when filling the product. There was a problem that a large amount of air flow was not obtained and the leaked refrigerant could not be discharged sufficiently outside the cabinet. The present invention solves the conventional problems, and provides a vending machine capable of discharging a refrigerant that has been stably leaked out of a warehouse while facilitating maintenance at the time of failure without impairing the heat insulating function. For the purpose.

上記従来の課題を解決するために、本発明の自動販売機は、断熱区画された自動販売機本体内に商品を収納する商品収納部と、前記商品収納部の下方に冷却システムの室内熱交換器や庫内ファンを有する冷却加温室と、前記自動販売機本体の前面に配置した外扉と、前記商品収納部の前面を覆う内扉と、前記冷却加温室の下方に機械室とを備えた自動販売機において、前記冷却システムに可燃性冷媒を用い、冷媒漏洩検知手段を備え、前記内扉に吸込ファンとファン取付ブラケット、および通気フラップで形成された外気導入手段を設置し、前記ファン取付ブラケットの前記通気フラップと対向する面を傾斜させたものである。   In order to solve the above-described conventional problems, the vending machine according to the present invention includes a product storage unit that stores products in a vending machine body that is thermally insulated, and an indoor heat exchange of a cooling system below the product storage unit. A cooling greenhouse having a container and a fan inside the cabinet, an outer door disposed on the front surface of the vending machine main body, an inner door covering the front surface of the product storage unit, and a machine room below the cooling greenhouse. In the vending machine, a flammable refrigerant is used for the cooling system, a refrigerant leakage detection means is provided, and an outside air introduction means formed of a suction fan, a fan mounting bracket, and a ventilation flap is installed on the inner door, and the fan The surface of the mounting bracket that faces the ventilation flap is inclined.

これにより、冷媒漏洩検知時、確実に漏洩した冷媒を排出することができるとともに、メンテナンス時に商品収納コラムを抜き取る必要がなく、商品収納部の商品の有無に関わらず、漏洩した冷媒を排出することができる。   As a result, it is possible to reliably discharge the leaked refrigerant when refrigerant leakage is detected, and it is not necessary to remove the product storage column during maintenance, and the leaked refrigerant is discharged regardless of the presence or absence of products in the product storage unit. Can do.

本発明の自動販売機は、庫内に漏洩した冷媒を安定して庫外に排出することができるので可燃性冷媒を用いた自動販売機の信頼性を高めることができる。   Since the vending machine according to the present invention can stably discharge the refrigerant leaked into the warehouse, the reliability of the vending machine using the combustible refrigerant can be improved.

請求項1に記載の発明は、断熱区画された自動販売機本体内に商品を収納する商品収納部と、前記商品収納部の下方に冷却システムの室内熱交換器や庫内ファンを有する冷却加温室と、前記自動販売機本体の前面に配置した外扉と、前記商品収納部の前面を覆う内扉と、前記冷却加温室の下方に機械室とを備えた自動販売機において、前記冷却システムに可燃性冷媒を用い、冷媒漏洩検知手段を備え、前記内扉に吸込ファンとファン取付ブラケット、および通気フラップで形成された外気導入手段を設置し、前記ファン取付ブラケットの前記通気フラップと対向する面を傾斜させたものであり、冷媒漏洩検知時、確実に漏洩した冷媒を排出することができ、可燃性冷媒を用いた自動販売機の信頼性を高めることができるとともに、外気導入手段のメンテナンス性を高めることができ、また、本体の設置時に多少の傾斜があっても、前記取付ブラケットに傾斜を設けているため、前記通気フラップが開くことが無いため、外部への熱リークを低減することができる。   According to the first aspect of the present invention, there is provided a cooling unit having a product storage unit for storing a product in a vending machine main body partitioned by heat insulation, and an indoor heat exchanger or an internal fan of a cooling system below the product storage unit. In the vending machine comprising a greenhouse, an outer door disposed on the front surface of the vending machine main body, an inner door covering the front surface of the commodity storage unit, and a machine room below the cooling greenhouse, the cooling system A flammable refrigerant is used, provided with a refrigerant leakage detection means, and a suction fan, a fan mounting bracket, and an outside air introducing means formed by a ventilation flap are installed on the inner door, and face the ventilation flap of the fan mounting bracket. The surface is inclined, and when leaking refrigerant is detected, the leaked refrigerant can be discharged reliably, improving the reliability of vending machines using flammable refrigerant and introducing outside air. In addition, even if there is a slight inclination during the installation of the main body, the mounting bracket is provided with an inclination so that the ventilation flap does not open. Can be reduced.

請求項2に記載の発明は、請求項1に記載の発明において、前記通気フラップの前記ファン取付ブラケットと対向する面にスロートを設けたものであり、通常運転時に外部ショック等で前記通気フラップが開いても、前記取付ブラケットと前記通気フラップとの間の隙間が前記スロートにより埋まるため、外部への熱リークを低減することができる。   According to a second aspect of the present invention, in the first aspect of the present invention, a throat is provided on a surface of the ventilation flap facing the fan mounting bracket, and the ventilation flap is caused by an external shock or the like during normal operation. Even if it opens, the gap between the mounting bracket and the ventilation flap is filled with the throat, so that heat leakage to the outside can be reduced.

請求項3に記載の発明は、請求項1または2に記載の発明において、前記ファン取付ブラケットの前記通気フラップと対向する面に、全周に亘って土台フランジを設けたものであり、通常運転時に前記土台フランジと前記通気フラップのスロート部を重ね合わせることで、前記取付ブラケットと前記通気フラップとの間の隙間が確実に埋まるため、外部への熱リークを確実に低減することができる。   According to a third aspect of the present invention, in the first or second aspect of the present invention, a base flange is provided over the entire circumference of the surface of the fan mounting bracket that faces the ventilation flap. Sometimes, by overlapping the base flange and the throat portion of the ventilation flap, the gap between the mounting bracket and the ventilation flap is reliably filled, so that heat leakage to the outside can be reliably reduced.

請求項4に記載の発明は、請求項3に記載の発明において、前記ファン取付ブラケットの前記土台フランジを前記吸込ファンの前面に配置するものであり、前記吸込ファンの飛び出しを防止することで、前記吸込ファンの動作を確実にすることができる。   The invention according to claim 4 is the invention according to claim 3, wherein the base flange of the fan mounting bracket is disposed on the front surface of the suction fan, and by preventing the suction fan from jumping out, The operation of the suction fan can be ensured.

請求項5に記載の発明は、請求項1から4のいずれか一項に記載の発明において、前記ファン取付ブラケットの前記吸込ファンの取付け位置後方にストッパーを設けたものであり、前記吸込ファンの取付位置を固定することで前記吸込ファンの吸い込み側の容積を確保することで排気効率を高めることができる。   According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, a stopper is provided behind the suction fan mounting position of the fan mounting bracket. By fixing the mounting position, it is possible to increase the exhaust efficiency by securing the suction side volume of the suction fan.

請求項6に記載の発明は、請求項1から5のいずれか一項に記載の発明において、前記ファン取付ブラケットの下方に面取りを施したものであり、前記取付ブラケット、ならびに前記通気フラップに付着した結露水を庫内へ導き、庫内の排水装置により、確実に排水することができる。   The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the fan mounting bracket is chamfered below, and is attached to the mounting bracket and the ventilation flap. Condensed dew water can be guided into the cabinet and drained reliably by the drainage device in the cabinet.

請求項7に記載の発明は、請求項1から6のいずれか一項に記載の発明において、外気導入手段を前記内扉の上部に設けたものであり、冷媒漏洩時に確実に排気処理をすることができる。   The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the outside air introducing means is provided at an upper portion of the inner door, and the exhaust treatment is surely performed when the refrigerant leaks. be able to.

以下、本発明による自動販売機の実施の形態について図面を参照しながら説明する。なお、この実施の形態によってこの発明が限定されるものではない。   Embodiments of a vending machine according to the present invention will be described below with reference to the drawings. The present invention is not limited to the embodiments.

(実施の形態1)
図1は本発明の実施の形態1における自動販売機の縦断面図である。図2は同実施の形態の自動販売機の要部縦断面図である。図3は同実施の形態の自動販売機の外気導入手段の側面図である。図4は同実施の形態の自動販売機のファン取付ブラケット縦断面図である。図5は同実施の形態の自動販売機のファン取付ブラケット斜視図である。図6は同実施の形態の自動販売機の通気フラップの裏面斜視図である。
(Embodiment 1)
FIG. 1 is a longitudinal sectional view of a vending machine according to Embodiment 1 of the present invention. FIG. 2 is a longitudinal sectional view of an essential part of the vending machine according to the embodiment. FIG. 3 is a side view of the outside air introducing means of the vending machine according to the embodiment. FIG. 4 is a longitudinal sectional view of the fan mounting bracket of the vending machine according to the embodiment. FIG. 5 is a perspective view of the fan mounting bracket of the vending machine according to the embodiment. FIG. 6 is a rear perspective view of the ventilation flap of the vending machine according to the embodiment.

図1と図2において、1は自動販売機の本体、2はサンプル商品を展示し、金銭授受や商品搬出を行う外扉、3は飲料缶などの商品を貯蔵する貯蔵庫である。貯蔵庫3の周囲にはウレタン発泡材などからなる断熱壁として背面パネル4、上面パネル5、下面パネル6、上部内扉7、下部内扉8を配置している。そして、下部内扉8に商品搬出口9、外扉に商品取り出し口10を設け、商品販売時には商品搬出口9を通して貯蔵庫3に貯蔵している商品をドアシュート11に搬出した後、商品取り出し口10を介して消費者が搬出された商品を受け取る。   1 and 2, 1 is a main body of a vending machine, 2 is an outer door for exhibiting sample products, giving and receiving money and taking out products, and 3 is a storage for storing products such as beverage cans. Around the storage 3, a rear panel 4, an upper panel 5, a lower panel 6, an upper inner door 7, and a lower inner door 8 are disposed as heat insulating walls made of urethane foam or the like. The product outlet 9 is provided in the lower inner door 8 and the product take-out port 10 is provided in the outer door. After the product is stored in the storage 3 through the product take-out port 9 to the door chute 11 when the product is sold, the product take-out port is provided. The consumer receives the goods carried out via 10.

また、貯蔵庫3の上部に吊り下げ金具12を配置し、缶飲料などの商品を保持する複数の商品収納コラム13〜15を吊り下げることですべての商品を収納している。貯蔵庫3の下部にはヒータ16、庫内ファン17、蒸発器18を設置し、貯蔵庫3の外に設置された圧縮機19、庫外ファン20、凝縮器21とともに形成された冷却加温システムを用いて、貯蔵庫3内の商品の加温と冷却を行っている。商品の加温は約55℃、冷却は約3℃に設定される。冷却加温システムの冷媒としては、可燃性冷媒であるイソブタンを使用している。   Moreover, the hanging metal fitting 12 is arrange | positioned at the upper part of the storage 3, and all the goods are accommodated by suspending several goods storage columns 13-15 holding goods, such as a can drink. A heater 16, an internal fan 17, and an evaporator 18 are installed in the lower part of the storage 3, and a cooling and heating system formed with a compressor 19, an external fan 20, and a condenser 21 installed outside the storage 3. The product in the storage 3 is used for heating and cooling. The warming of the product is set at about 55 ° C and the cooling is set at about 3 ° C. Isobutane, which is a flammable refrigerant, is used as a refrigerant for the cooling and heating system.

そして、貯蔵庫3の下部に冷媒の漏洩を検知する漏洩検知手段22を設置し、上部内扉7に吸込ファン26とファン取付ブラケット27、ならびに通気フラップ28からなる外気導入手段29を備えている。ここで、図2に示すように、外気導入手段29はファン取付ブラケット27に吸込ファン26をハメ込みやビス締めで取付けてあり、ファン取付ブラケット27の風向きの下流側には通気フラップ28を同様にはめ込みやビス締めにて取り付けており、外気導入手段29自体は、例えば上部内扉7はウレタン樹脂の発泡体などで出来ているため、上部内扉の外気導入手段29の取付部分を切り欠くなどで、スライドするだけで上部内扉7に設置することができる。   Leakage detection means 22 for detecting refrigerant leakage is installed in the lower part of the storage 3, and the upper inner door 7 is provided with an outside air introduction means 29 including a suction fan 26, a fan mounting bracket 27, and a ventilation flap 28. Here, as shown in FIG. 2, the outside air introducing means 29 has the suction fan 26 attached to the fan mounting bracket 27 by screwing or screw tightening, and a ventilation flap 28 is also provided on the downstream side of the fan mounting bracket 27 in the wind direction. The outside air introduction means 29 itself is made of, for example, a foam of urethane resin, so that the attachment portion of the outside air introduction means 29 of the upper inside door is cut out. Thus, it can be installed on the upper inner door 7 simply by sliding.

ここで、図3と図4において、通気フラップ閉時のファン取付ブラケット27と通気フラップ28との密着部には、全周に渡って土台フランジ30が設けてあり、土台フランジ30は側面から見て、上下方向の上部が鋭角になるように3°から5°の傾斜が設けられている。これにより、通常自動販売機の設置は転倒の恐れがあるため3°傾斜以内と定められているため、設置時に前後に傾斜したとしても、ファン取付ブラケット27と通気フラップ28は密着されるため、隙間による貯蔵庫3の内外の熱リークを低減することができる。このとき、土台フランジ30により吸込ファン26の前面に密着させた構造にすることで、吸込ファン26の前部への飛び出しを防止することで、吸込ファン26の動作を確実にすることができる。また、通気フラップ28のファン取付ブラケット27と対向する面に3mm前後のスロート31を設けることで、通常運転時に外部ショック等で通気フラップ28が開いても、取付ブラケット27と通気フラップ28との間の隙間がスロート31により埋まるため、より熱リークを低減させることができる。   Here, in FIGS. 3 and 4, the base flange 30 is provided over the entire circumference at the close contact portion between the fan mounting bracket 27 and the ventilation flap 28 when the ventilation flap is closed, and the foundation flange 30 is viewed from the side. Thus, an inclination of 3 ° to 5 ° is provided so that the upper portion in the vertical direction has an acute angle. As a result, the installation of the vending machine is normally set to be within 3 ° because there is a risk of falling, so even if the fan mounting bracket 27 and the ventilation flap 28 are tilted back and forth at the time of installation, Heat leakage inside and outside the storage 3 due to the gap can be reduced. At this time, by adopting a structure in which the base flange 30 is in close contact with the front surface of the suction fan 26, the suction fan 26 can be reliably operated by preventing the suction fan 26 from jumping out to the front portion. Further, by providing a throat 31 of about 3 mm on the surface of the ventilation flap 28 that faces the fan mounting bracket 27, even if the ventilation flap 28 is opened by an external shock or the like during normal operation, the gap between the mounting bracket 27 and the ventilation flap 28 is Since the gap is filled with the throat 31, heat leakage can be further reduced.

また、上部内扉7と外扉2は工法上、一体型になっていることが多く、吸込ファン26が外扉2に密着してしまうと、外扉2が抵抗になり、充分な吸い込み風量を確保できなくなるため、ファン取付ブラケット27の吸込ファン26の取付位置後方にストッパー32を設けることで、吸込ファン26の取付位置が固定でき、吸込ファン26の吸い込み側の容積を確保することで排気効率を高めることができる。また、外気導入手段29は、部分的に周りのウレタン樹脂に比べて、吸熱量が劣るため、結露する場合があるため、ファン取付ブラケット27の下部に面取り33を施すことで結露水の排水を貯蔵庫3の庫内側に落とすことで庫内の排水機構を用いて、結露水を排水することができる。   Further, the upper inner door 7 and the outer door 2 are often integrated in terms of construction method, and if the suction fan 26 comes into close contact with the outer door 2, the outer door 2 becomes a resistance and a sufficient amount of suction airflow. Therefore, it is possible to fix the mounting position of the suction fan 26 by providing the stopper 32 behind the mounting position of the suction fan 26 of the fan mounting bracket 27, and to secure the capacity of the suction fan 26 on the suction side. Efficiency can be increased. Further, since the outside air introduction means 29 is partially inferior in heat absorption compared to the surrounding urethane resin, there is a case where condensation occurs. Therefore, the drainage of the condensed water is performed by chamfering 33 on the lower portion of the fan mounting bracket 27. Condensed water can be drained using the drainage mechanism in the warehouse by dropping it inside the warehouse 3.

ここで、貯蔵庫3の内外に設置された電気部品は、自販機工業会自主基準(JVMA2B001、附属書2「冷却ユニットの安全」)に示した要件を満足するように、防爆構造を有している。この防爆構造は、冷却加温システムから冷媒が漏洩した場合に電気部品が着火源とならないようにするものであり、漏洩した冷媒を拡散する構造や表面温度を低く抑える構造、火炎が外部に伝播しない簡易防爆構造などを含む。   Here, the electrical components installed inside and outside the storage 3 have an explosion-proof structure so as to satisfy the requirements shown in the Vending Machine Manufacturers Association voluntary standards (JVMA2B001, Annex 2 “Safety of Cooling Unit”). . This explosion-proof structure prevents electrical components from becoming an ignition source when refrigerant leaks from the cooling and heating system. The structure that diffuses the leaked refrigerant, the structure that keeps the surface temperature low, and the flame to the outside Includes a simple explosion-proof structure that does not propagate.

以上のように構成された実施の形態1の自動販売機について、以下にその動作を説明する。   The operation of the vending machine of the first embodiment configured as described above will be described below.

貯蔵庫3内に配置された冷却加温システムの配管などが破損して冷媒が漏洩し、漏洩検知手段22が冷媒を検知すると、吸込ファン26を運転させる。吸込ファン26の動圧で通気フラップ28を押して、外気を導入することができる。この結果、貯蔵庫3内の圧力が上昇して庫内に滞留する冷媒を商品搬出口9や図示しないドレン水排出口から放出し、庫内の空気を連続的に置換することで漏洩した冷媒の濃度をすばやく低下させて安全性を高めることができる。   If the piping of the cooling and heating system arranged in the storage 3 is damaged and the refrigerant leaks, and the leak detection means 22 detects the refrigerant, the suction fan 26 is operated. The outside air can be introduced by pushing the ventilation flap 28 with the dynamic pressure of the suction fan 26. As a result, the refrigerant that has accumulated in the storage 3 due to the increased pressure in the storage 3 is discharged from the product outlet 9 or a drain water discharge port (not shown), and the refrigerant leaked by continuously replacing the air in the storage. The concentration can be quickly reduced to increase safety.

そして、商品搬出口9やドレン水排出口から放出された冷媒はドアシュート11から下方に拡散しながら圧縮機19、庫外ファン20、凝縮器21が配置された機械室に到達し、庫外ファン20によって外気と混合しながら本体1の背面から外部に排出される。これによって、貯蔵庫3内の冷媒濃度を速やかに可燃下限値以下として爆発のリスクが軽減されるとともに、商品搬出口9から放出された冷媒を外気で希釈しながら安全に排出することができる。   And the refrigerant | coolant discharged | emitted from the merchandise exit 9 or the drain water discharge port reaches | attains the machine room in which the compressor 19, the external fan 20, and the condenser 21 are arrange | positioned, diffusing downward from the door chute 11, and the exterior While being mixed with outside air by the fan 20, the air is discharged from the back surface of the main body 1 to the outside. As a result, the refrigerant concentration in the storage 3 can be quickly reduced below the flammable lower limit value to reduce the risk of explosion, and the refrigerant released from the product outlet 9 can be safely discharged while being diluted with outside air.

また、本実施の形態においては、貯蔵庫3外に配置された冷却加温システムの配管などが破損して冷媒が漏洩した場合に備えて、庫外ファン20を24時間連続運転して漏洩した冷媒を外気で希釈する構成としたが、漏洩検知手段22で検知した場合のみ庫外ファン20を運転してもよい。また、本実施の形態においては、貯蔵庫3内の商品の温度分布を維持するために通常連続運転する庫内ファン17を冷媒漏洩時にも止めずに運転を継続したが、漏洩検知手段22で検知した場合に庫内ファン17を停止してもよい。庫内ファン17を停止した場合、貯蔵庫3の下方の空気が攪拌されないので、大気よりも重い冷媒であるイソブタン(比重2.09)やプロパン(比重1.56)は、貯蔵庫3の下方に滞留しやすいため、上部からの外気導入でより早く漏洩した冷媒を庫外へ排出することができる。   Further, in the present embodiment, the refrigerant leaked by operating the external fan 20 continuously for 24 hours in preparation for the case where the refrigerant leaks due to damage to the piping of the cooling and heating system disposed outside the storage 3. However, the outside fan 20 may be operated only when it is detected by the leakage detection means 22. Further, in the present embodiment, in order to maintain the temperature distribution of the product in the storage 3, the internal fan 17 that is normally continuously operated continues to operate without stopping even when the refrigerant leaks. In this case, the internal fan 17 may be stopped. When the internal fan 17 is stopped, the air below the storage 3 is not agitated, so isobutane (specific gravity 2.09) and propane (specific gravity 1.56), which are heavier than the atmosphere, stay in the storage 3 below. Since it is easy to do, the refrigerant | coolant which leaked earlier by the external air introduction from the upper part can be discharged | emitted outside the store | warehouse | chamber.

また、本実施の形態においては、漏洩検知手段22を貯蔵室3の下部に配置したが、商品搬出口9の外側であるドアシュート11の近傍に漏洩検知手段22を配置し、貯蔵庫内とを導管などで連通させる手段を用いても同様の効果が期待できる。   Further, in the present embodiment, the leakage detection means 22 is arranged in the lower part of the storage chamber 3, but the leakage detection means 22 is arranged in the vicinity of the door chute 11 that is outside the merchandise exit 9, The same effect can be expected even if means for communicating with a conduit or the like is used.

また、本実施の形態においては、ヒータ16を用いて貯蔵庫3を加温する構成としたが、貯蔵庫3内に凝縮器21を配置して凝縮器21の廃熱で貯蔵庫3を加温する構成(ヒートポンプ方式)としても、凝縮器21の近傍で漏洩した冷媒を安全に外部に排出する同様の効果が期待できる。   Moreover, in this Embodiment, although it was set as the structure which heats the storage 3 using the heater 16, the structure which arrange | positions the condenser 21 in the storage 3 and heats the storage 3 with the waste heat of the condenser 21 is used. Even with the (heat pump system), a similar effect can be expected in which the refrigerant leaked in the vicinity of the condenser 21 is safely discharged to the outside.

また、本実施の形態においては、漏洩検知手段22を貯蔵室3の下部に配置したが、機械室に漏洩検知手段を配置し、貯蔵庫と機械室を連通する導管を介して漏洩検知する構造としてもよい。この場合、漏洩検知手段22が貯蔵庫の冷熱の影響を受けないので、漏洩検知精度を高めることができる。   Further, in the present embodiment, the leak detection means 22 is arranged at the lower part of the storage chamber 3, but the leak detection means is arranged in the machine room, and the leak is detected through a conduit communicating the storage and the machine room. Also good. In this case, since the leak detection means 22 is not influenced by the cold of the storage, the leak detection accuracy can be improved.

以上のように、本発明にかかる自動販売機は、貯蔵庫の内扉に吸込ファンならびに通気フラップで形成されている外気導入手段を設置し、漏洩検知手段が漏洩を検知した時に吸込ファンを運転させ、その動圧で通気フラップを開放し外気を導入することにより安全に貯蔵庫内の冷媒濃度を速やかに低下させることができるので、可燃性冷媒を使用したショーケースや業務用冷凍冷蔵庫などの冷蔵あるいは冷凍機器等にも適用できる。   As described above, in the vending machine according to the present invention, the outside air introducing means formed by the suction fan and the ventilation flap is installed on the inner door of the storage, and the suction fan is operated when the leakage detection means detects the leakage. By opening the ventilation flap with the dynamic pressure and introducing the outside air, the refrigerant concentration in the storage can be reduced quickly and safely, so it can be refrigerated such as in a showcase using a flammable refrigerant or a commercial refrigerator-freezer. It can also be applied to refrigeration equipment.

本発明の実施の形態1による自動販売機の縦断面図1 is a longitudinal sectional view of a vending machine according to Embodiment 1 of the present invention. 本発明の実施の形態1による自動販売機の要部を示す縦断面図The longitudinal cross-sectional view which shows the principal part of the vending machine by Embodiment 1 of this invention 本発明の実施の形態1による自動販売機の外気導入手段の側面図Side view of outside air introducing means of vending machine according to Embodiment 1 of the present invention 本発明の実施の形態1による自動販売機のファン取付ブラケット縦断面図1 is a longitudinal sectional view of a fan mounting bracket of a vending machine according to Embodiment 1 of the present invention. 本発明の実施の形態1による自動販売機のファン取付ブラケット斜視図1 is a perspective view of a fan mounting bracket of a vending machine according to Embodiment 1 of the present invention. 本発明の実施の形態1による自動販売機の通気フラップ裏面斜視図Ventilation flap back perspective view of the vending machine according to Embodiment 1 of the present invention 従来の自動販売機の縦断面図Vertical section of a conventional vending machine

符号の説明Explanation of symbols

3 貯蔵庫
7 上部内扉
22 漏洩検知手段
26 吸込ファン
27 ファン取付ブラケット
28 通気フラップ
29 外気導入手段
30 土台フランジ
31 スロート
32 ストッパー
33 面取り
3 Storage 7 Upper Inner Door 22 Leakage Detection Means 26 Suction Fan 27 Fan Mounting Bracket 28 Ventilation Flaps 29 Outside Air Introduction Means 30 Base Flange 31 Throat 32 Stopper 33 Chamfering

Claims (7)

断熱区画された自動販売機本体内に商品を収納する商品収納部と、前記商品収納部の下方に冷却システムの室内熱交換器や庫内ファンを有する冷却加温室と、前記自動販売機本体の前面に配置した外扉と、前記商品収納部の前面を覆う内扉と、前記冷却加温室の下方に機械室とを備えた自動販売機において、前記冷却システムに可燃性冷媒を用い、冷媒漏洩検知手段を備え、前記内扉に吸込ファンとファン取付ブラケット、および通気フラップで形成された外気導入手段を設置し、前記ファン取付ブラケットの前記通気フラップと対向する面を傾斜させたことを特徴とする自動販売機。   A product storage unit for storing products in a vending machine main body that is insulated, a cooling greenhouse having an indoor heat exchanger and a fan in a cooling system below the product storage unit, and a vending machine main unit In a vending machine comprising an outer door disposed on the front surface, an inner door that covers the front surface of the product storage unit, and a machine room below the cooling chamber, a flammable refrigerant is used in the cooling system, and a refrigerant leak It has a detecting means, and an outside air introducing means formed by a suction fan, a fan mounting bracket, and a ventilation flap is installed in the inner door, and a surface of the fan mounting bracket facing the ventilation flap is inclined. Vending machine. 前記通気フラップの前記ファン取付ブラケットと対向する面にスロートを設けたことを特徴とする請求項1に記載の自動販売機。   The vending machine according to claim 1, wherein a throat is provided on a surface of the ventilation flap facing the fan mounting bracket. 前記ファン取付ブラケットの前記通気フラップと対向する面に、全周に亘って土台フランジを設けたことを特徴とする請求項1または2に記載の自動販売機。   The vending machine according to claim 1 or 2, wherein a base flange is provided on the entire surface of the face of the fan mounting bracket that faces the ventilation flap. 前記ファン取付ブラケットの前記土台フランジを前記吸込ファンの前面に配置することを特徴とした請求項3に記載の自動販売機。   4. The vending machine according to claim 3, wherein the base flange of the fan mounting bracket is disposed on a front surface of the suction fan. 前記ファン取付ブラケットの前記吸込ファンの取付け位置後方にストッパーを設けたことを特徴とした請求項1から4のいずれか一項に記載の自動販売機。   The vending machine according to any one of claims 1 to 4, wherein a stopper is provided behind the suction fan mounting position of the fan mounting bracket. 前記ファン取付ブラケットの下方に面取りを施したことを特徴とした請求項1から5のいずれか一項に記載の自動販売機。   The vending machine according to any one of claims 1 to 5, wherein chamfering is performed below the fan mounting bracket. 外気導入手段を前記内扉の上部に設けたことを特徴とする請求項1から6のいずれか一項に記載の自動販売機。   The vending machine according to any one of claims 1 to 6, wherein an outside air introducing means is provided at an upper portion of the inner door.
JP2008267010A 2008-10-16 2008-10-16 vending machine Expired - Fee Related JP5304166B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008267010A JP5304166B2 (en) 2008-10-16 2008-10-16 vending machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008267010A JP5304166B2 (en) 2008-10-16 2008-10-16 vending machine

Publications (2)

Publication Number Publication Date
JP2010097373A JP2010097373A (en) 2010-04-30
JP5304166B2 true JP5304166B2 (en) 2013-10-02

Family

ID=42259015

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008267010A Expired - Fee Related JP5304166B2 (en) 2008-10-16 2008-10-16 vending machine

Country Status (1)

Country Link
JP (1) JP5304166B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101989752B1 (en) * 2018-11-21 2019-06-14 대성히트펌프 주식회사 Safety control system of heatpump using combustibility refrigerants
US11662128B2 (en) 2018-07-09 2023-05-30 Crane Payment Innovations, Inc. Refrigerant leak detector for a vending machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6769021B2 (en) * 2015-09-30 2020-10-14 ダイキン工業株式会社 Refrigeration equipment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0537147Y2 (en) * 1989-03-11 1993-09-20
JP2001134827A (en) * 1999-11-08 2001-05-18 Fuji Electric Co Ltd Automatic vending machine
JP3103089U (en) * 2004-01-30 2004-07-22 株式会社メープルアンドスターホームズ Bathroom ventilation structure
JP2006139449A (en) * 2004-11-11 2006-06-01 Matsushita Electric Ind Co Ltd Vending machine
JP5109776B2 (en) * 2008-04-16 2012-12-26 パナソニック株式会社 vending machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11662128B2 (en) 2018-07-09 2023-05-30 Crane Payment Innovations, Inc. Refrigerant leak detector for a vending machine
KR101989752B1 (en) * 2018-11-21 2019-06-14 대성히트펌프 주식회사 Safety control system of heatpump using combustibility refrigerants

Also Published As

Publication number Publication date
JP2010097373A (en) 2010-04-30

Similar Documents

Publication Publication Date Title
JP5109565B2 (en) vending machine
JP6501006B2 (en) Refrigeration system
EP0719995B1 (en) Refrigerator
JP5176469B2 (en) vending machine
JP5304166B2 (en) vending machine
JP5092634B2 (en) vending machine
JP5401825B2 (en) vending machine
JP5151378B2 (en) vending machine
JP6137264B2 (en) Refrigeration equipment
JP2010038524A (en) Refrigerator
JP5109776B2 (en) vending machine
JP5481821B2 (en) vending machine
JP2004178511A (en) Vending machine
JP4547798B2 (en) refrigerator
JP2003106730A (en) Refrigerator
JP2011257827A (en) Automatic dispenser
JP2009079818A (en) Vending machine
JP2007018137A (en) Vending machine
JP4120181B2 (en) Installation method of heater for heating
JP4111247B2 (en) Installation method of heater for defrosting refrigerator
JP2001336869A (en) Freezer/refrigerator
JP2004199453A (en) Vending machine
JP2003207244A (en) Refrigerator
JP7108810B2 (en) Dew condensation sensor and refrigerator using the same
JP2001263919A (en) Refrigeration system

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20110929

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20111013

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20121214

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20130415

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20130528

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20130610

R151 Written notification of patent or utility model registration

Ref document number: 5304166

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

LAPS Cancellation because of no payment of annual fees