JP2004295618A

JP2004295618A - Vending machine

Info

Publication number: JP2004295618A
Application number: JP2003088465A
Authority: JP
Inventors: Katsunori Horii; 克則堀井; Takahiro Inoue; 隆宏井上; Masakazu Yamamoto; 昌和山本; Shigeru Kasahara; 茂笠原; Yoshitaka Naito; 吉隆内藤
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2003-03-27
Filing date: 2003-03-27
Publication date: 2004-10-21
Anticipated expiration: 2023-03-27
Also published as: JP3760925B2

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the risk of refrigerant leakage and to enhance safety in a vending machine using a refrigerator by a HC (hydrocarbon) refrigerant having combustibility. <P>SOLUTION: In this vending machine, a partition wall 19 is prepared between a refrigerator 8 using a combustible refrigerant arranged in a machine room 7 located at the lower part of the main body of the vending machine and an electrical parts storage part 9, the refrigerator 8 and the electrical parts storage part 9 become in such circumstance that they are placed in two isolated spaces respectively by a door 2, touching the partition wall 19 when the door 2 of the vending machine is closed; and at the worst, when the combustible refrigerant leaks, the combustible refrigerant breaking into the area having an electrical parts box 17 providing the electric storage part 9 and an operation part 16 is prevented, so that it can prevent the ignition or explosion of the combustible refrigerant from occurring due to the ignition source in the electrical parts box 17. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、商品を冷却する冷凍サイクルの冷媒として可燃性冷媒を使用した自動販売機の構造に関する。
【０００２】
【従来の技術】
近年、地球のオゾン層を保護する観点から、冷却装置の冷凍サイクルに使用されていた冷媒ＣＦＣ（クロロフルオロカーボン）−１２あるいはＨＣＦＣ（ハイドロクロロフルオロカーボン）−２２といった塩素原子を含んだ冷媒の使用が規制され、塩素原子を含まず、オゾン層を破壊しないＨＦＣ（ハイドロフルオロカーボン）冷媒への転換が進行している。
【０００３】
また、従来、主にＨＣＦＣ−２２を用いていた自動販売機においては、その代替冷媒としてＨＦＣ冷媒の混合冷媒であるＲ４０７Ｃが採用され販売されている。
【０００４】
また、断熱材の発泡ガスとしては、ＣＦＣ−１１からＨＣＦＣ−１４１ｂへ転換されてきているが、さらに代替化が望まれている現状である。
【０００５】
しかしながら、現在用いられているＲ４０７ＣなどのＨＦＣ冷媒は、オゾン層破壊はないものの、地球温暖化係数が高いため、地球温暖化に対しては不十分な冷媒となり、そのため地球温暖化係数の低い冷媒として、ＨＦＣに代わってＨＣ（ハイドロカーボン）等の自然系冷媒が注目されている。
【０００６】
一方、ＨＣ系冷媒は可燃性を有しているため、冷却装置における冷凍サイクルの冷媒として使用する場合には安全性確保が課題であり、冷媒封入量の削減、冷媒漏れに対する配慮が必要である。
【０００７】
このことから、万一可燃性冷媒が漏洩し、電気部品等の着火源に近づく危険性を回避するために、可燃性冷媒が空気より重い性質を考慮し、電気部品を冷媒が流れる冷凍装置より上方に配置する方法がある（例えば、特許文献１参照。）。
【０００８】
【特許文献１】
特開２００２−１１５９５３号公報
【０００９】
【発明が解決しようとする課題】
しかし、一般的な自動販売機の本体構造では、図６、図７に示すとおり、自動販売機の本体上部に収納室５１、本体下部に機械室７を形成し、圧縮機、凝縮器、ファン等は主に機械室７に設置されている。また機械室７には、収納室は商品の収納量をできる限り多くするため、冷凍装置を制御する電気部品を収納した電気部品収納部９が設置されている。
【００１０】
このような自動販売機では、機械室内において、可燃性冷媒を使用した冷凍装置と着火源となる電気部品が接近して配置されている。
【００１１】
また、機械室７の風の流れは、図７に示すとおり、電気部品収納部９の付近で滞留するようになり、万一、可燃性冷媒が漏洩した場合、電気部品収納部９の付近に可燃性冷媒が滞留することが考えられます。
【００１２】
本発明は、上記従来の課題を解決するもので、冷凍サイクルの冷媒として可燃性冷媒を使用しても安全性の高い自動販売機を提供することを目的とする。
【００１３】
そしてさらに、万一の冷媒の漏洩に対しても、従来よりさらに安全な自動販売機を提供することを目的とする。
【００１４】
【課題を解決するための手段】
本発明の請求項１に記載の発明は、自動販売機本体の下部に位置する機械室の室内に可燃性冷媒を使用した冷凍装置と電気部品収納部を配設した自動販売機において、前記冷凍装置と前記電気部品収納部の間に仕切り壁を設け、自動販売機の扉を閉じた時、前記仕切り壁と前記扉が当接するものであり、仕切り壁によって冷凍装置から電気部品収納部への通気を遮断することで、万一、可燃性冷媒が漏洩した時には、電気部品収納部への可燃性冷媒の浸入を防止する作用を有する。
【００１５】
請求項２に記載の発明は、請求項１に記載の発明に、さらに、扉側に第２仕切り壁を設け、扉を閉じた時に仕切り壁と当接するものであり、扉を開けた時は、第２仕切り壁は扉側に取付けた状態で、壁が２分割され、本体側の仕切り壁が本体前面に飛び出ることがなく、扉を閉じた時は本体側仕切り壁と扉側の第２仕切り壁が当接し、冷凍装置から電気部品収納部への通気を遮断することで、万一、可燃性冷媒が漏洩した時には、電気部品収納部への可燃性冷媒の浸入を防止する作用を有する。
【００１６】
請求項３に記載の発明は、自動販売機本体の下部に位置する機械室の室内に可燃性冷媒を使用した冷凍装置と電気部品収納部を配設した自動販売機において、前記電気部品収納部を前記冷凍装置から隔離収納する収納部を備え、前記収納部前面が開口した開口部にカバー部材を設けたものであり、電気部品収納部を操作する開口部に冷凍装置からの通気をカバー部材によって遮断することで、万一、可燃性冷媒が漏洩した時には、電気部品収納部への可燃性冷媒の浸入を防止する作用を有する。
【００１７】
請求項４に記載の発明は、請求項３に記載の発明に、さらに、カバー部材を開閉可能とし、前記カバー部材を開けて電気部品収納部の操作部を操作可能としたものであり、通常はカバーを閉じて冷凍装置からの通気をカバー部材によって遮断することで、万一、可燃性冷媒が漏洩した時には、電気部品収納部への可燃性冷媒の浸入を防止し、電気部品収納部内の操作部の操作が必要なときは、カバー部材を開けて操作することができる作用を有する。
【００１８】
請求項５に記載の発明は、請求項３に記載の発明に、さらに、カバー部材の一部に開閉自在な蓋を設け、前記蓋を開けて電気部品収納部の操作部を操作可能としたものであり、カバー部材全体を開閉する必要がなく、電気部品収納部内の操作部を操作するために設けられた蓋を開けて簡単に操作できる作用を有する。
【００１９】
請求項６に記載の発明は、請求項３に記載の発明に、さらに、カバー部材の周縁部に磁性体シートを貼り付け、被磁性体で構成された収納部の前面開口部を塞ぐものであり、磁性体シートが被磁性体の収納部に密着することで、収納部の前面開口部をカバー部材で密閉できる作用を有する。
【００２０】
【発明の実施の形態】
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。
【００２１】
（実施の形態１）
図１は、本発明の実施の形態１によ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下部横断面図である。
【００２２】
図１、２に示すように、断熱筐体としてなるキャビネット１、扉２に設けた商品取出口３を備え、キャビネット１の庫内の商品収納室４にはサーペンタイン式の商品収納棚５、商品取出口３に導かれる商品搬出シュータ６が備えられている。
【００２３】
また、自動販売機本体の下部に位置する機械室７の室内に、可燃性冷媒を使用した冷凍装置８と電気部品収納部９を配設し、補強部材１０を備える。冷凍装置８は、凝縮器１１、凝縮機ファン１２、圧縮機１３、庫内に蒸発器１４、庫内ファン１５を備えている。電気部品収納部９は電気部品（図示しない）と操作部１６を備えた電気部品ボックス１７を備えている。
【００２４】
また、扉２の下部に、外気との循環のための通風孔１８を備えている。
【００２５】
ここで機械室７の中では通常、凝縮機ファン１２を稼動させ、通風孔１８から外気を取り入れ、凝縮機１１と圧縮機１３を冷却し、さらに自動販売機後方へ向かう流れを作り、機械室７内を換気することができる。
【００２６】
しかし、従来の自動販売機の機械室７では、図６に示すとおり、電気部品収納部９近傍の風の流れは淀み状態になり、可燃性冷媒が漏洩した時には、漏洩冷媒が滞留したまま排出されない状態が続くことになる。その結果、着火源となる電機部品が配置されている電気部品ボックス１７の中に可燃性冷媒が浸入することが考えられる。
【００２７】
このことから、可燃性冷媒が漏洩した時に、電気部品収納部９へ漏洩冷媒が浸入することを防止する必要がある。
【００２８】
そのために、冷凍装置８と電気部品収納部９との間に仕切り壁１９を設け、さらに、扉２側に第２仕切り壁２０を設け、仕切り壁１９と第２仕切り壁２０が当接する部分には、シール性を高めるために、第２仕切り壁２０にシール部材２０ａが取り付けられている。シール部材２０ａは仕切り壁１９側に設けてもよい。
【００２９】
仕切り壁１９は機械室７の背面まで延設され、補強部材１０の背面で電気部品収納部９を囲い込むように取り付けられている。
【００３０】
以上のように構成された自動販売機について、以下その動作を説明する。
【００３１】
まず、扉２を閉じると、仕切り壁１９と第２仕切り壁２０はシール部材２０ａを介して当接し、機械室７を圧縮機１３などの冷凍装置８が配置されている空間と、電気部品収納部９が配置されている空間とに分離することができる。このように仕切り壁１９と第２仕切り壁２０によって仕切られた２つの空間は、互いに空気の循環がなくなり、凝縮機ファン１２の風は電気部品収納部９が配置されている空間には入りこむことはない。
【００３２】
よって、万一、可燃性冷媒が漏洩した場合にも、電気部品収納部９の近傍への可燃性冷媒が浸入することはなく、安全性を確保することができる。
【００３３】
以上のように本実施の形態の自動販売機は、自動販売機本体の下部に位置する機械室７の室内に配設された可燃性冷媒を使用した冷凍装置８と電気部品収納部９の間に仕切り壁１９を設け、自動販売機の扉２を閉じた時、仕切り壁１９と扉２が当接することで、冷凍装置８と電気部品収納部９は遮断された２つの空間にそれぞれ配置される状態となり、万一、可燃性冷媒漏洩時に、可燃性冷媒が電気部品収納部９および操作部１６を備えた電気部品ボックス１７を有する領域へ浸入するのを防止することで、電気部品ボックス１７の漏電等の着火源によって、可燃性冷媒に引火あるいは爆発するのを防止することができる。
【００３４】
また、扉２側に第２仕切り壁２０を設け、扉を開けた時は、第２仕切り壁２０は扉２側に取付けた状態で、壁が２分割され、本体側の仕切り壁１９が本体前面に飛び出ることがなく、扉２を閉じた時は本体側仕切り壁１と扉２側の第２仕切り壁２０が当接し、冷凍装置８から電気部品収納部９への通気を遮断することで、万一、可燃性冷媒が漏洩した時には、電気部品収納部９への可燃性冷媒の浸入を防止することができる。
【００３５】
さらに、第２仕切り壁２０にシール部材２０ａが取り付けられており、本体１と扉２の取り付け具合により、仕切り壁１９と第２仕切り壁２０との隙間が生じた場合においても、その隙間をふさぐことができ、その結果、冷凍装置８から電気部品収納部９への通気を遮断することで、万一、可燃性冷媒が漏洩した時には、電気部品収納部９への可燃性冷媒の浸入を防止することができる。
【００３６】
（実施の形態２）
図３は、本発明の実施の形態２による自動販売機の下部横断面図である。なお、実施の形態１と同一構成については、同一記号を付して詳細な説明を省略する。
【００３７】
図３において、機械室７の室内に設けた電気部品収納部９は、操作部１６を備えた電気部品ボックス１７を隔離収納する収納部２１を備える構造である。
【００３８】
操作部１６を備えた電気部品ボックス１７を隔離収納する収納部２１前面の開口した開口部２２にはカバー部材２３が設けられている。カバー部材２３はねじ（図示しない）等で収納部２１前面に隙間無く取り付けられている。隙間を塞ぐためにシール部材（図示しない）をカバー部材２３と収納部２１前面の間に設けることが有効である。収納部２１は前面開口部２２以外は密閉構造で外気との通気は完全に遮断されている。収納部２１は実施の形態１で説明した補強部材１０と共用構造としている。
【００３９】
以上のように構成された自動販売機について、以下その動作を説明する。
【００４０】
まず、電気部品ボックス１７は隔離収納する収納部２１に収納され、さらに前面開口部２２をカバー部材２３にて塞がれているため、冷凍装置８の凝縮機ファン１２が発生する風は収納部２１に入り込むことがない。
【００４１】
よって、万一、可燃性冷媒が漏洩した場合にも、電気部品ボックス１７の中への可燃性冷媒の浸入を防止することができる。
【００４２】
以上のように本実施の形態の自動販売機は、電気部品ボックス１７を隔離収納する収納部２１前面の開口した開口部２２にはカバー部材２３が設けられていることにより、万一、可燃性冷媒が漏洩した場合にも、電気部品ボックス１７の中への可燃性冷媒の浸入を防止することができ、安全性を確保することができる。
【００４３】
また、収納部２１は実施の形態１で説明した補強部材１０と共用構造としたことにより、強度を確保すると同時に万一の可燃性冷媒の漏洩に対しても、安全性を確保することができる。
【００４４】
（実施の形態３）
図４は本発明の実施の形態３による自動販売機の下部断面図、図５は同実施の形態３の自動販売機の下部正面図である。なお、実施の形態１、実施の形態２と同一構成については、同一記号を付して詳細な説明を省略する。
【００４５】
図４において、蓋２４は収納部２１の前面に設けられ、蓋２４の周縁には磁性体シート２５が貼り付けられており、収納部２１の前面開口部２２を塞いでいる。また、蓋２４の位置を決めるために１箇所をねじ２６にて、回動可能に半固定されている。蓋２４は操作部１６の状態が見えるように透明板で構成されている。実施の形態２で説明したカバー部材２３は本実施の形態３では蓋２４として説明する。
【００４６】
以上のように構成された自動販売機について、以下その動作を説明する。
【００４７】
電気部品ボックス１７を収納部２１に収めている点は実施の形態２と同じ構造である。
【００４８】
本実施の形態では、前面開口部２２を塞ぐ方法として、磁性体シート２６を周縁に貼り付けた蓋２４を鉄板材で構成された収納部２１の前面に貼り付ける構造となっており、磁性体シート２６により蓋２４は収納部前面に密着させることができる。蓋２４は透明な部材で構成されており、操作部１６の状態が蓋２４を開けなくても確認することができる。
【００４９】
操作部１６を操作する場合は、ねじ２６を中心に蓋２４を回転させると、開口部２２に隙間を開けることができ、操作部１６を操作できる。また、蓋２４を薄い樹脂シート等で形成されていれば、ねじ２６を中心に回動させなくても、手前にめくるように開けることも可能である。
【００５０】
以上のように本実施の形態の自動販売機は、自動販売機本体の下部に位置する機械室７の室内に配設された電気部品収納部９に操作部１６を備えた電気部品ボックス１７を隔離収納する収納部２１を備え、収納部２１前面の開口した開口部２２に磁性体シート２５を蓋２４の周縁に設けることで、蓋２４と収納部２１とは密着させることができ、操作部１６を備えた電気部品ボックス１７は完全に冷凍装置８とからは隔離され、万一、可燃性冷媒が漏洩した時でも可燃性冷媒の浸入を防止することができ、電気部品ボックス１７の漏電等の着火源によって、可燃性冷媒に引火あるいは爆発するのを防止することができる。
【００５１】
【発明の効果】
以上説明したように請求項１に記載の発明は、機械室に配設された冷凍装置と電気部品収納部との間に仕切り壁を設けたものであり、扉を閉じた時に仕切り壁と扉が当接することで、機械室において電気部品収納部および操作部を備えた電気部品ボックスを有する領域が隔離され、万一、可燃性冷媒が漏洩した時でも可燃性冷媒の浸入を防止することができ、電気部品ボックスの漏電等の着火源によって、可燃性冷媒に引火あるいは爆発するのを防止することができる。
【００５２】
また、請求項２に記載の発明は、請求項１の発明に加えて、扉側に第２仕切り壁を設けたものであり、扉を閉じた時に仕切り壁と当接し、扉を開けた時は、第２仕切り壁は扉側に取付けた状態で、壁が２分割され、本体側の仕切り壁が本体前面に飛び出ることがなく、扉を閉じた時は本体側仕切り壁と扉側の第２仕切り壁が当接することで、電気部品収納部および操作部を備えた電気部品ボックスを有する領域が自動販売機外とも隔離され、万一、可燃性冷媒が漏洩した時でも可燃性冷媒の浸入を防止することができ、電気部品ボックスの漏電等の着火源によって可燃性冷媒に引火あるいは爆発するのを防止することができる。
【００５３】
請求項３に記載の発明は、機械室の室内に設けた電気部品収納部に、操作部を備えた電気部品ボックスを隔離収納する収納部を備える構造であり、操作部を備えた電気部品ボックスを隔離収納する収納部前面の開口した開口部にカバー部材を設けることで、操作部を備えた電気部品ボックスは隔離され、万一、可燃性冷媒が漏洩した時でも可燃性冷媒の浸入を防止することができ、電気部品ボックスの漏電等の着火源によって、可燃性冷媒に引火あるいは爆発するのを防止することができる。
【００５４】
また、請求項４に記載の発明は、請求項３の発明に加えて、カバー部材を開閉可能にしたものであり、電気部品収納部の収納部に隔離収納された電気部品ボックスの操作部の操作が必要な時は、カバー部材を開けて操作することができる。
【００５５】
また、請求項５に記載の発明は、請求項３の発明に加えて、カバー部材の一部に開閉自在な蓋を設けたものであり、カバー部材全体を開閉する必要がなく、電気部品収納部の収納部に隔離収納された電気部品ボックスの操作部の操作が必要な時は、蓋を開けて簡単に操作することができる。
【００５６】
また、請求項６に記載の発明は、請求項３の発明に加え、カバー部材の周縁に磁性体シートを貼り付けることで、カバー部材と収納部とは密着させることができ、操作部を備えた電気部品ボックスは完全に冷凍装置とからは隔離され、万一、可燃性冷媒が漏洩した時でも可燃性冷媒の浸入を防止することができ、電気部品ボックスの漏電等の着火源によって、可燃性冷媒に引火あるいは爆発するのを防止することができる。
【図面の簡単な説明】
【図１】本発明による自動販売機の実施の形態１の下部横断面図
【図２】同実施の形態の自動販売機の下部正面図
【図３】本発明による自動販売機の実施の形態２の下部横断面図
【図４】本発明による自動販売機の実施の形態３の下部横断面図
【図５】同実施の形態の自動販売機の下部正面図
【図６】従来の自動販売機の本体側正面図
【図７】従来の自動販売機の下部横断面図
【符号の説明】
１本体
２扉
７機械室
８冷却装置
９電気部品収納部
１６操作部
１９仕切り壁
２０第２仕切り壁
２１収納部
２２開口部
２３カバー部材[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a structure of a vending machine using a flammable refrigerant as a refrigerant of a refrigeration cycle for cooling a product.
[0002]
[Prior art]
In recent years, from the viewpoint of protecting the earth's ozone layer, the use of refrigerants containing chlorine atoms, such as refrigerants CFC (chlorofluorocarbon) -12 or HCFC (hydrochlorofluorocarbon) -22, which has been used in a refrigeration cycle of a cooling device, has been restricted. The conversion to HFC (hydrofluorocarbon) refrigerant which does not contain chlorine atoms and does not destroy the ozone layer is in progress.
[0003]
Conventionally, in a vending machine mainly using HCFC-22, R407C which is a mixed refrigerant of HFC refrigerant is adopted and sold as an alternative refrigerant.
[0004]
In addition, as a foaming gas for the heat insulating material, CFC-11 has been converted to HCFC-141b, but at present, further substitution is desired.
[0005]
However, although currently used HFC refrigerants such as R407C do not cause ozone depletion, they have a high global warming potential and are therefore insufficient refrigerants for global warming, and therefore have low global warming potential. As such, natural refrigerants such as HC (hydrocarbon) have been attracting attention instead of HFCs.
[0006]
On the other hand, since the HC-based refrigerant has flammability, when using it as a refrigerant in a refrigeration cycle in a cooling device, it is important to ensure safety, and it is necessary to reduce the amount of charged refrigerant and consider refrigerant leakage. .
[0007]
Therefore, in order to avoid the danger of the flammable refrigerant leaking and approaching an ignition source such as an electric component, the refrigeration system in which the flammable refrigerant flows through the electric component is considered in consideration of the property that the flammable refrigerant is heavier than air. There is a method of disposing it above (for example, see Patent Document 1).
[0008]
[Patent Document 1]
JP-A-2002-115953
[Problems to be solved by the invention]
However, in a general vending machine main body structure, as shown in FIGS. 6 and 7, a storage room 51 is formed at the upper portion of the vending machine and a machine room 7 is formed at the lower portion of the vending machine, and a compressor, a condenser, and a fan are formed. Are installed mainly in the machine room 7. Further, in the machine room 7, an electric component storage unit 9 for storing electric components for controlling the refrigerating device is installed in order to maximize the amount of commodities stored in the storage room.
[0010]
In such a vending machine, a refrigerating device using a combustible refrigerant and an electric component serving as an ignition source are arranged close to each other in a machine room.
[0011]
Further, as shown in FIG. 7, the flow of the wind in the machine room 7 stays near the electric component storage unit 9, and in the event that the flammable refrigerant leaks, The flammable refrigerant may stay.
[0012]
An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a vending machine that is highly safe even when a flammable refrigerant is used as a refrigerant in a refrigeration cycle.
[0013]
It is still another object of the present invention to provide a vending machine which is safer than ever before even in the event of leakage of refrigerant.
[0014]
[Means for Solving the Problems]
The invention according to claim 1 of the present invention is directed to a vending machine in which a refrigeration apparatus using a flammable refrigerant and an electric component storage unit are arranged in a machine room located at a lower portion of a vending machine main body. A partition wall is provided between the device and the electric component storage unit, and when the vending machine door is closed, the partition wall and the door come into contact with each other. By blocking the ventilation, in the event that the flammable refrigerant leaks, the flammable refrigerant has the function of preventing the flammable refrigerant from entering the electric component storage section.
[0015]
According to a second aspect of the present invention, in addition to the first aspect of the present invention, a second partition wall is further provided on the door side, and abuts against the partition wall when the door is closed. When the second partition wall is attached to the door side, the wall is divided into two, the main body side partition wall does not pop out to the front of the main body, and when the door is closed, the main body side partition wall and the second side of the door side are closed. The partition wall abuts and blocks ventilation from the refrigerating device to the electrical component storage unit, thereby preventing the inflammable refrigerant from entering the electrical component storage unit in the event of a flammable refrigerant leaking. .
[0016]
According to a third aspect of the present invention, there is provided a vending machine in which a refrigeration apparatus using a flammable refrigerant and an electric component storage unit are disposed in a machine room located at a lower portion of a vending machine main body. And a cover member provided in an opening that is open at the front of the storage unit, and a cover member that vents from the refrigeration device to an opening that operates the electrical component storage unit. In the event that the flammable refrigerant leaks, the flammable refrigerant has an effect of preventing the flammable refrigerant from entering the electric component storage section.
[0017]
According to a fourth aspect of the present invention, in addition to the third aspect of the present invention, the cover member can be opened and closed, and the cover member can be opened to operate the operation part of the electrical component storage unit. By closing the cover and blocking the ventilation from the refrigeration device by the cover member, in the event that the flammable refrigerant leaks, it prevents the flammable refrigerant from entering the electrical component storage section, When the operation of the operation unit is required, the operation of opening the cover member can be performed.
[0018]
According to a fifth aspect of the present invention, in addition to the third aspect of the present invention, an openable and closable lid is further provided on a part of the cover member, and the lid can be opened to operate the operation unit of the electric component storage unit. It is not necessary to open and close the entire cover member, and has an effect that the lid provided for operating the operation unit in the electric component storage unit can be opened and easily operated.
[0019]
According to a sixth aspect of the present invention, in addition to the third aspect of the present invention, a magnetic sheet is further adhered to a peripheral portion of the cover member to close a front opening of a storage portion made of a magnetic material. In addition, since the magnetic material sheet is in close contact with the storage portion of the magnetic material, the opening of the front surface of the storage portion can be sealed by the cover member.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a vending machine according to the present invention will be described with reference to the drawings.
[0021]
(Embodiment 1)
FIG. 1 is a vertical sectional view of a vending machine according to Embodiment 1 of the present invention. FIG. 2 is a lower cross-sectional view of the vending machine according to the embodiment.
[0022]
As shown in FIGS. 1 and 2, a cabinet 1 serving as a heat-insulating housing, a product outlet 3 provided in a door 2, and a product storage room 4 in the cabinet of the cabinet 1 are provided with a serpentine-type product storage shelf 5, A product carry-out shooter 6 guided to the outlet 3 is provided.
[0023]
Further, a refrigeration device 8 using a flammable refrigerant and an electric component storage unit 9 are disposed in a machine room 7 located at a lower portion of the vending machine main body, and a reinforcing member 10 is provided. The refrigerating device 8 includes a condenser 11, a condenser fan 12, a compressor 13, and an evaporator 14 and a fan 15 inside the refrigerator. The electric component storage unit 9 includes an electric component box 17 having an electric component (not shown) and an operation unit 16.
[0024]
Further, a ventilation hole 18 for circulating with outside air is provided at a lower portion of the door 2.
[0025]
Here, in the machine room 7, usually, the condenser fan 12 is operated, the outside air is taken in from the ventilation hole 18, the condenser 11 and the compressor 13 are cooled, and a flow toward the rear of the vending machine is created. 7 can be ventilated.
[0026]
However, in the machine room 7 of the conventional vending machine, as shown in FIG. 6, the flow of the wind near the electric component storage unit 9 becomes stagnant, and when the flammable refrigerant leaks, the leaked refrigerant is discharged without stagnation. Will not continue. As a result, it is conceivable that the flammable refrigerant enters the electric component box 17 in which the electric component serving as the ignition source is disposed.
[0027]
For this reason, when the flammable refrigerant leaks, it is necessary to prevent the leaking refrigerant from entering the electric component housing 9.
[0028]
For this purpose, a partition wall 19 is provided between the refrigeration unit 8 and the electrical component storage unit 9, and further, a second partition wall 20 is provided on the door 2 side, and a portion where the partition wall 19 and the second partition wall 20 contact each other is provided. The seal member 20a is attached to the second partition wall 20 in order to enhance the sealing performance. The seal member 20a may be provided on the partition wall 19 side.
[0029]
The partition wall 19 extends to the back of the machine room 7, and is attached so as to surround the electric component housing 9 on the back of the reinforcing member 10.
[0030]
The operation of the vending machine configured as described above will be described below.
[0031]
First, when the door 2 is closed, the partition wall 19 and the second partition wall 20 come into contact with each other via a seal member 20a, and the machine room 7 is separated from the space in which the refrigerating device 8 such as the compressor 13 is disposed and the electrical component housing. It can be separated into the space in which the part 9 is arranged. As described above, the two spaces partitioned by the partition wall 19 and the second partition wall 20 have no air circulation therebetween, and the wind of the condenser fan 12 enters the space in which the electric component housing 9 is disposed. There is no.
[0032]
Therefore, even if the flammable refrigerant leaks, the flammable refrigerant does not enter the vicinity of the electrical component storage unit 9 and safety can be ensured.
[0033]
As described above, the vending machine of the present embodiment is provided between the refrigerating device 8 using the flammable refrigerant and the electric component storage unit 9 disposed in the machine room 7 located at the lower part of the vending machine main body. Is provided, and when the door 2 of the vending machine is closed, the partition wall 19 and the door 2 come into contact with each other, so that the refrigeration unit 8 and the electric component storage unit 9 are respectively disposed in the two closed spaces. In the event that the flammable refrigerant leaks, the flammable refrigerant is prevented from entering the area having the electric component box 17 provided with the electric component storage section 9 and the operation section 16 to thereby prevent the electric component box 17 from being leaked. It is possible to prevent the flammable refrigerant from igniting or exploding due to an ignition source such as a short circuit.
[0034]
Further, a second partition wall 20 is provided on the door 2 side, and when the door is opened, the second partition wall 20 is attached to the door 2 side, the wall is divided into two, and the main body side partition wall 19 is attached to the main body side. When the door 2 is closed without popping out to the front surface, the main body side partition wall 1 and the second partition wall 20 on the door 2 side come into contact with each other, and the ventilation from the refrigeration unit 8 to the electric component storage unit 9 is shut off. In the event that the flammable refrigerant leaks, it is possible to prevent the flammable refrigerant from entering the electric component housing 9.
[0035]
Furthermore, a seal member 20a is attached to the second partition wall 20, and even if a gap between the partition wall 19 and the second partition wall 20 is generated due to the attachment state of the main body 1 and the door 2, the gap is closed. As a result, the ventilation from the refrigeration apparatus 8 to the electric component storage unit 9 is blocked, so that if the flammable refrigerant leaks, the infiltration of the flammable refrigerant into the electric component storage unit 9 is prevented. can do.
[0036]
(Embodiment 2)
FIG. 3 is a lower cross-sectional view of a vending machine according to Embodiment 2 of the present invention. In addition, about the same structure as Embodiment 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.
[0037]
In FIG. 3, the electric component storage unit 9 provided in the machine room 7 has a storage unit 21 for isolating and storing the electric component box 17 provided with the operation unit 16.
[0038]
A cover member 23 is provided in an opening 22 opened on the front surface of a storage section 21 for isolating and storing the electric component box 17 having the operation section 16. The cover member 23 is attached to the front surface of the storage section 21 without any gap by screws (not shown) or the like. It is effective to provide a seal member (not shown) between the cover member 23 and the front surface of the storage section 21 to close the gap. The storage section 21 has a closed structure except for the front opening section 22, and the ventilation with the outside air is completely shut off. The storage section 21 has a structure shared with the reinforcing member 10 described in the first embodiment.
[0039]
The operation of the vending machine configured as described above will be described below.
[0040]
First, the electric component box 17 is housed in the housing part 21 to be housed separately, and the front opening 22 is closed by the cover member 23, so that the wind generated by the condenser fan 12 of the refrigeration system 8 is blocked by the housing part 21. 21.
[0041]
Therefore, even if the flammable refrigerant leaks, it is possible to prevent the flammable refrigerant from entering the electric component box 17.
[0042]
As described above, in the vending machine of the present embodiment, the cover member 23 is provided in the opening 22 on the front face of the storage section 21 for separating and storing the electric component box 17, so that the Even when the refrigerant leaks, it is possible to prevent the inflammable refrigerant from entering the electric component box 17 and to ensure safety.
[0043]
Further, since the storage portion 21 has a structure shared with the reinforcing member 10 described in the first embodiment, it is possible to secure strength and at the same time to ensure safety against leakage of a flammable refrigerant at the same time. .
[0044]
(Embodiment 3)
FIG. 4 is a lower sectional view of the vending machine according to the third embodiment of the present invention, and FIG. 5 is a lower front view of the vending machine of the third embodiment. The same components as those in the first and second embodiments are denoted by the same reference numerals, and detailed description is omitted.
[0045]
In FIG. 4, the lid 24 is provided on the front surface of the storage unit 21, and a magnetic sheet 25 is attached to the periphery of the lid 24, and covers the front opening 22 of the storage unit 21. In order to determine the position of the lid 24, one portion is half-fixed rotatably with a screw 26. The lid 24 is formed of a transparent plate so that the state of the operation unit 16 can be seen. The cover member 23 described in the second embodiment will be described as a lid 24 in the third embodiment.
[0046]
The operation of the vending machine configured as described above will be described below.
[0047]
The electrical component box 17 is housed in the storage section 21 in the same structure as in the second embodiment.
[0048]
In the present embodiment, as a method of closing the front opening 22, a lid 24 having a magnetic sheet 26 attached to the periphery is attached to the front surface of the storage section 21 made of an iron plate material. The sheet 24 allows the lid 24 to be in close contact with the front surface of the storage section. The lid 24 is made of a transparent member, and the state of the operation unit 16 can be checked without opening the lid 24.
[0049]
When operating the operation unit 16, when the lid 24 is rotated around the screw 26, a gap can be opened in the opening 22, and the operation unit 16 can be operated. Further, if the lid 24 is formed of a thin resin sheet or the like, the lid 24 can be opened so as to be turned forward without rotating around the screw 26.
[0050]
As described above, the vending machine according to the present embodiment includes the electric component box 17 having the operation unit 16 in the electric component storage unit 9 disposed in the machine room 7 located at the lower part of the vending machine main body. By providing a storage section 21 for separating and storing, and by providing a magnetic sheet 25 around the periphery of the lid 24 in an opening 22 opened in the front of the storage section 21, the lid 24 and the storage section 21 can be brought into close contact with each other. The electric component box 17 provided with the electric component box 16 is completely isolated from the refrigeration system 8 so that even if the flammable refrigerant leaks, the flammable refrigerant can be prevented from entering, and the electric component box 17 can be short-circuited. The ignition source can prevent the flammable refrigerant from igniting or exploding.
[0051]
【The invention's effect】
As described above, according to the first aspect of the present invention, a partition wall is provided between a refrigerating device provided in a machine room and an electrical component storage unit, and the partition wall and the door are closed when the door is closed. Abuts, an area having an electric component box having an electric component storage unit and an operation unit in the machine room is isolated, and even if the flammable refrigerant leaks, the infiltration of the flammable refrigerant can be prevented. Thus, it is possible to prevent the flammable refrigerant from igniting or exploding due to an ignition source such as an electric leakage of the electric component box.
[0052]
According to a second aspect of the present invention, in addition to the first aspect, a second partition wall is provided on the door side, and when the door is closed, the second partition wall comes into contact with the partition wall and the door is opened. In the state where the second partition wall is attached to the door side, the wall is divided into two, the main body side partition wall does not pop out to the front of the main body, and when the door is closed, the main body side partition wall and the door side When the two partition walls come into contact with each other, the area having the electric component box having the electric component storage unit and the operation unit is isolated from the outside of the vending machine, and even if the flammable refrigerant leaks, the flammable refrigerant enters. Can be prevented, and the flammable refrigerant can be prevented from igniting or exploding due to an ignition source such as leakage of the electric component box.
[0053]
The invention according to claim 3 has a structure in which an electric component storage unit provided in a machine room is provided with a storage unit for isolating and storing an electric component box having an operation unit, and the electric component box having an operation unit. By providing a cover member at the opening on the front of the storage section that separates and stores the electrical components, the electrical component box with the operation section is isolated, preventing the intrusion of flammable refrigerant even if flammable refrigerant leaks It is possible to prevent the flammable refrigerant from igniting or exploding due to an ignition source such as earth leakage of the electric component box.
[0054]
According to a fourth aspect of the present invention, in addition to the third aspect, the cover member is made openable and closable, and the operation part of the electric component box separately housed in the storage part of the electric part storage part is provided. When an operation is required, the user can open the cover member to operate.
[0055]
According to a fifth aspect of the present invention, in addition to the third aspect of the present invention, the cover member is provided with an openable / closable lid on a part of the cover member. When it is necessary to operate the operation part of the electric component box separately stored in the storage part, the lid can be opened and the operation can be easily performed.
[0056]
According to a sixth aspect of the present invention, in addition to the third aspect of the present invention, the cover member and the storage portion can be brought into close contact with each other by attaching a magnetic sheet to the peripheral edge of the cover member, and an operation portion is provided. The electrical component box is completely isolated from the refrigeration system, and even if the flammable refrigerant leaks, it can prevent the infiltration of the flammable refrigerant. The flammable refrigerant can be prevented from igniting or exploding.
[Brief description of the drawings]
FIG. 1 is a lower cross-sectional view of a vending machine according to a first embodiment of the present invention; FIG. 2 is a lower front view of the vending machine of the same embodiment; FIG. FIG. 4 is a bottom cross-sectional view of a vending machine according to a third embodiment of the present invention. FIG. 5 is a bottom front view of a vending machine of the same embodiment. FIG. 6 is a conventional vending machine. Front view of main unit side of machine [Fig. 7] Lower cross-sectional view of conventional vending machine [Explanation of reference numerals]
DESCRIPTION OF SYMBOLS 1 Main body 2 Door 7 Machine room 8 Cooling device 9 Electric component storage part 16 Operation part 19 Partition wall 20 Second partition wall 21 Storage part 22 Opening 23 Cover member

Claims

In a vending machine in which a refrigeration apparatus using a flammable refrigerant and an electric component storage section are disposed in a machine room located at a lower portion of a vending machine main body, a partition wall is provided between the refrigeration apparatus and the electric component storage section. The vending machine is characterized in that when the door of the vending machine is closed, the partition wall and the door come into contact with each other, and the ventilation between the refrigeration device and the electric component storage unit is shut off.

2. The vending machine according to claim 1, wherein a second partition wall is provided on the door side, and when the door is closed, the second partition wall comes into contact with the partition wall to block ventilation between the refrigeration device and the electrical component storage unit. 3.

In a vending machine in which a refrigeration apparatus using a flammable refrigerant and an electric component storage unit are disposed in a machine room located at a lower portion of a vending machine main body, storage in which the electric component storage unit is separated and stored from the refrigeration device. A vending machine provided with a cover member provided in an opening where the front surface of the storage unit is opened to block ventilation between the refrigeration apparatus and the electric component storage unit.

4. The vending machine according to claim 3, wherein the cover member is openable and closable, and the cover member is opened so that an operation unit of the electric component storage unit can be operated.

The vending machine according to claim 3, wherein an openable and closable lid is provided on a part of the cover member, and the lid is opened so that an operation unit of the electric component storage unit can be operated.

The vending machine according to claim 3, wherein a magnetic sheet is attached to a peripheral portion of the cover member to close a front opening of the storage portion made of the magnetic material.