JP5071083B2 - vending machine - Google Patents

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JP5071083B2
JP5071083B2 JP2007317048A JP2007317048A JP5071083B2 JP 5071083 B2 JP5071083 B2 JP 5071083B2 JP 2007317048 A JP2007317048 A JP 2007317048A JP 2007317048 A JP2007317048 A JP 2007317048A JP 5071083 B2 JP5071083 B2 JP 5071083B2
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heat transfer
temperature refrigerant
refrigerant
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健 松原
敏章 土屋
浩司 滝口
尚紀 井下
真 石田
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Fuji Electric Retail Systems Co Ltd
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本発明は、複数の商品、特に、缶、ビン、パック、ペットボトル等の容器に入れた飲料等の商品を、冷却または加熱して販売に供する自動販売機に関する。   The present invention relates to a vending machine that cools or heats a plurality of commodities, in particular, beverages and the like in containers such as cans, bottles, packs, and plastic bottles.

自動販売機は通常複数の商品室を有し、該商品室を冷却するための冷却手段は、冷媒を圧縮する圧縮機と、該圧縮機により圧縮された冷媒(高圧高温冷媒に同じ)を冷却する放熱器と、該放熱器により冷却された冷媒を膨張する冷媒膨張手段(電子膨張弁等)と、該冷媒膨張手段により膨張された冷媒(低圧低温冷媒に同じ)を蒸発させる複数の蒸発器と、該複数の蒸発器のうち所定の蒸発器に対して前記冷媒を供給する冷媒分配手段とを有する。
そして、各商品室にはそれぞれ蒸発器が設置され、これに収納された商品を冷却している。
また、商品室内は、収納する商品の種類や季節に応じて加熱用として使用されることがある。このとき、各商品室内に設置されている蒸発器に高圧高温冷媒を流して、これを凝縮器として機能させ、高圧高温冷媒(ホットガスに同じ)の温熱を利用して各商品室内を加熱する「ヒートポンプ運転」により、省電力効果を高めた自動販売機の庫内冷却、加熱装置が開示されている(例えば、特許文献1参照)。
The vending machine usually has a plurality of product rooms, and the cooling means for cooling the product rooms cools the compressor that compresses the refrigerant and the refrigerant compressed by the compressor (same as the high-pressure and high-temperature refrigerant). , A refrigerant expansion means (such as an electronic expansion valve) for expanding the refrigerant cooled by the heat radiator, and a plurality of evaporators for evaporating the refrigerant expanded by the refrigerant expansion means (same as the low-pressure low-temperature refrigerant) And refrigerant distribution means for supplying the refrigerant to a predetermined evaporator among the plurality of evaporators.
And each evaporator is installed in each merchandise room, and the goods stored in this are cooled.
In addition, the product room may be used for heating depending on the type and season of the product to be stored. At this time, a high-pressure and high-temperature refrigerant is allowed to flow through an evaporator installed in each product room to function as a condenser, and each product room is heated using the heat of the high-pressure and high-temperature refrigerant (same as hot gas). A vending machine cooling and heating device with improved power saving effect by “heat pump operation” is disclosed (for example, see Patent Document 1).

ところが、前記特許文献1に開示された発明は、収納された商品を冷却または加熱する商品室(「ホット/コールド室」に同じ)に設置された熱交換器に、低圧低温冷媒または高圧高温冷媒を、切り替えバルブの操作によって、選択的に供給するものである。このため、切り替えバルブが高圧高温冷媒を密閉することができない場合には、高圧高温冷媒の一部が低圧低温冷媒側にリークし、商品を予定通りに冷却することができなくなるという問題があった。このため、本発明の発明者等は、かかるリークを解決することができる冷却加熱ユニット、および該冷却加熱ユニットが設置された自動販売機の開発に成功している(例えば、特許文献2参照)。   However, in the invention disclosed in Patent Document 1, a low-pressure low-temperature refrigerant or a high-pressure high-temperature refrigerant is installed in a heat exchanger installed in a product room (same as a “hot / cold room”) that cools or heats a stored product. Are selectively supplied by operating the switching valve. For this reason, when the switching valve cannot seal the high-pressure and high-temperature refrigerant, there is a problem that a part of the high-pressure and high-temperature refrigerant leaks to the low-pressure and low-temperature refrigerant side and the product cannot be cooled as planned. . For this reason, the inventors of the present invention have succeeded in developing a cooling and heating unit that can solve such a leak, and a vending machine in which the cooling and heating unit is installed (see, for example, Patent Document 2). .

特開2005−216111号公報(第4頁、図2)Japanese Patent Laying-Open No. 2005-216111 (page 4, FIG. 2) 特開2007−1200号公報(第9−10頁、図1)Japanese Unexamined Patent Publication No. 2007-1200 (page 9-10, FIG. 1)

前記特許文献2に開示された冷却加熱ユニットは、高圧高温冷媒が供給される放熱器を含む高圧高温配管系と、低圧低温冷媒が供給される蒸発器を含む低圧低温配管系とを、分離して、高圧高温冷媒の一部が低圧低温配管系にリークすることを無くしている。
さらに、放熱器と蒸発器とが一体化された熱交換器を開示している。すなわち、放熱器を構成する凝縮フィン(凝縮伝熱管が蛇行しながら貫通している)と、蒸発器を構成する蒸発フィン(蒸発伝熱管が蛇行しながら貫通している)とが、接合または共有の板材にて形成され、商品室への設置が容易になっている。
(あ)しかしながら、前記一体化された熱交換器は、風路の一方側(例えば、上側または右側)に凝縮伝熱管が配置され、風路の他方側(例えば、下側または左側)に凝縮伝熱管が配置されるため、凝縮伝熱管側または蒸発伝熱管側に風を供給するダンパーを設置する必要があった。このため、構成を簡素にして、部品点数を減少させたいという要請があった。
The cooling and heating unit disclosed in Patent Document 2 separates a high-pressure and high-temperature piping system including a radiator to which a high-pressure and high-temperature refrigerant is supplied from a low-pressure and low-temperature piping system including an evaporator to which a low-pressure and low-temperature refrigerant is supplied. Thus, part of the high-pressure / high-temperature refrigerant is prevented from leaking into the low-pressure / low-temperature piping system.
Furthermore, the heat exchanger with which the heat radiator and the evaporator were integrated is disclosed. That is, the condensing fin (condensation heat transfer tube penetrates while meandering) constituting the radiator and the evaporation fin (vaporization heat transfer tube penetrates while meandering) constituting the evaporator are joined or shared. It is easy to install in the product room.
(A) However, in the integrated heat exchanger, a condensation heat transfer tube is disposed on one side (for example, the upper side or the right side) of the air path, and condensed on the other side (for example, the lower side or the left side) of the air path. Since the heat transfer tubes are arranged, it is necessary to install a damper for supplying wind to the condensation heat transfer tube side or the evaporation heat transfer tube side. For this reason, there has been a demand for simplifying the configuration and reducing the number of parts.

(い)また、前記一体化された熱交換器では、圧縮機と凝縮伝熱管とを連通する配管および凝縮伝熱管と膨張手段とを連通する配管が、該熱交換器の一方の側面側に配置された場合には、膨張手段と蒸発伝熱管とを連通する配管および蒸発伝熱管と圧縮器を連通する配管が、該熱交換器の他方の側面側に配置されていた。このため、該熱交換器を、所定の幅未満の幅狭の商品室に配置しようとすると、凝縮フィンと蒸発フィンとを併せた板の面積を拡大することになり、結果として、収納する商品量(商品ラックの大きさに相当する)を減らすことになっていた。そこで、凝縮フィンと蒸発フィンとを併せた板の面積を拡大することなく、所望の熱交換が可能な熱交換器の開発が要請されていた。   (I) In the integrated heat exchanger, a pipe that communicates the compressor and the condensation heat transfer pipe and a pipe that communicates the condensation heat transfer pipe and the expansion means are provided on one side of the heat exchanger. When arranged, a pipe communicating the expansion means and the evaporation heat transfer tube and a pipe communicating the evaporation heat transfer tube and the compressor were arranged on the other side surface side of the heat exchanger. For this reason, if it is going to arrange | position this heat exchanger in the narrow product room less than predetermined width, it will enlarge the area of the board which combined the condensation fin and the evaporation fin, As a result, the goods to store The amount (corresponding to the size of the product rack) was to be reduced. Thus, there has been a demand for the development of a heat exchanger capable of performing desired heat exchange without increasing the area of the plate including the condensing fins and the evaporation fins.

本発明は上記要請に応えるものであって、簡素な構成であって、凝縮フィンと蒸発フィンとを併せた板の面積を拡大することなく所望の熱交換を可能とする熱交換器が、設置された自動販売機を提供することを目的とする。   The present invention meets the above-mentioned requirements, and has a simple configuration, and a heat exchanger that enables desired heat exchange without increasing the area of the plate that combines the condensation fins and the evaporation fins is installed. The purpose is to provide an automated vending machine.

(1)本発明に係る自動販売機(請求項1)は、筐体と、
該筐体内に配置された仕切り板によって仕切られた複数の商品室と、
該複数の商品室のうちの一方の商品室に配置された庫内熱交換器と、
該複数の商品室のうちの他方の商品室に配置された庫内蒸発器と、
冷媒を圧縮する圧縮機と、
前記複数の商品室の外に配置された庫外凝縮器と、
冷媒を膨張させる膨張手段と、
前記庫内熱交換器に、前記圧縮機において圧縮された高圧高温冷媒または前記膨張手段において膨張された低圧低温冷媒の一方を供給開始若しくは供給停止すると共に、前記庫内蒸発器に、前記膨張手段において膨張された低圧低温冷媒を供給開始若しくは供給停止する冷媒分配手段と、
を有する自動販売機であって、
前記庫内熱交換器が、互いに平行に設置された複数のフィンプレートと、該複数のフィンプレートを貫通する前記高圧高温冷媒が流れる凝縮伝熱管と、該複数のフィンプレートを貫通する前記低圧低温冷媒が流れる蒸発伝熱管と、から形成され、
前記凝縮伝熱管が、前記複数のフィンプレートのうち最も外側に配置されたフィンプレートの外側において折り返すと共に、前記複数のフィンプレートのうちの最も外側に配置されたフィンプレートの一方の外側において、前記高圧高温冷媒を流入させる高圧高温冷媒流入配管および前記高圧高温冷媒を流出させる高圧高温冷媒流出配管に接続され、
前記蒸発伝熱管が、前記複数のフィンプレートのうち最も外側に配置されたフィンプレートの外側において折り返すと共に、前記複数のフィンプレートのうち最も外側に配置されたフィンプレートの一方の外側において、前記低圧低温冷媒を流入させる低圧低温冷媒流入配管および前記低圧低温冷媒を流出させる低圧低温冷媒流出配管に接続されていることを特徴とする。
(1) A vending machine according to the present invention (Claim 1) includes a housing,
A plurality of product rooms partitioned by a partition plate disposed in the housing;
An internal heat exchanger disposed in one of the plurality of product rooms;
An internal evaporator disposed in the other product room of the plurality of product rooms;
A compressor for compressing the refrigerant;
An external condenser disposed outside the plurality of product rooms;
Expansion means for expanding the refrigerant;
Supply of one of the high-pressure and high-temperature refrigerant compressed in the compressor or the low-pressure and low-temperature refrigerant expanded in the expansion means to the internal heat exchanger is stopped or stopped, and the expansion means is connected to the expansion means. Refrigerant distribution means for starting or stopping the supply of the low-pressure low-temperature refrigerant expanded in
Vending machine having
The internal heat exchanger includes a plurality of fin plates installed in parallel to each other, a condensation heat transfer tube through which the high-pressure and high-temperature refrigerant passes through the plurality of fin plates, and the low-pressure and low-temperature through the plurality of fin plates. An evaporation heat transfer tube through which the refrigerant flows, and
The condensation heat transfer tube is folded on the outer side of the fin plate disposed on the outermost side among the plurality of fin plates, and on one outer side of the fin plate disposed on the outermost side of the plurality of fin plates, Connected to a high-pressure and high-temperature refrigerant inflow piping for flowing in the high-pressure and high-temperature refrigerant and a high-pressure and high-temperature refrigerant outflow piping for flowing out the high-pressure and high-temperature refrigerant,
The evaporative heat transfer tube is folded on the outer side of the fin plate disposed on the outermost side among the plurality of fin plates, and on the outer side of one of the fin plates disposed on the outermost side of the plurality of fin plates, the low pressure It is characterized by being connected to a low-pressure and low-temperature refrigerant inflow pipe through which the low-temperature refrigerant flows in and a low-pressure and low-temperature refrigerant outflow pipe through which the low-pressure and low-temperature refrigerant flows out.

(2)本発明に係る自動販売機(請求項2)は、前記(1)において、前記複数の商品室のうちの一方の商品室に配置された庫内熱交換器に対し、略水平方向に流れる空気流れが形成され、
前記複数のフィンプレートが、前記空気流れに平行するように配置され、
前記凝縮伝熱管が、前記高圧高温冷媒を蛇行させながら前記空気流れの下流側において下側から上側に流した後、前記空気流れのより上流側において上側から下側に流すように配置され、
前記蒸発伝熱管が、前記低圧低温冷媒を蛇行させながら前記凝縮伝熱管の上流側において上側から下側に流すように配置されていることを特徴とする。
(2) The vending machine according to the present invention (Claim 2) is substantially horizontal with respect to the internal heat exchanger disposed in one of the plurality of product rooms in (1). An air flow flowing through
The plurality of fin plates are arranged to be parallel to the air flow;
The condensation heat transfer tube is arranged to flow from the lower side to the upper side on the downstream side of the air flow while meandering the high-pressure and high-temperature refrigerant, and then to flow from the upper side to the lower side on the upstream side of the air flow,
The evaporation heat transfer tube is arranged to flow from the upper side to the lower side on the upstream side of the condensation heat transfer tube while meandering the low-pressure low-temperature refrigerant.

(3)本発明に係る自動販売機(請求項3)は、前記(1)において、前記複数の商品室のうちの一方の商品室に配置された庫内熱交換器に対し、略水平方向に流れる空気流れが形成され、
前記複数のフィンプレートが、前記空気流れに平行するように配置され、
前記凝縮伝熱管が、前記高圧高温冷媒を蛇行させながら前記空気流れの下流側において下側から上側に流した後、前記空気流れのより上流側において上側から下側に流すように配置され、
前記蒸発伝熱管が、前記低圧低温冷媒を蛇行させながら前記凝縮伝熱管に対し前記空気流れの上流側において上側から下側に流した後、前記空気流れの下流方向に流すように配置されていることを特徴とする。
(3) The vending machine according to the present invention (Claim 3) is substantially horizontal with respect to the internal heat exchanger disposed in one of the plurality of product rooms in (1). An air flow flowing through
The plurality of fin plates are arranged to be parallel to the air flow;
The condensation heat transfer tube is arranged to flow from the lower side to the upper side on the downstream side of the air flow while meandering the high-pressure and high-temperature refrigerant, and then to flow from the upper side to the lower side on the upstream side of the air flow,
The evaporative heat transfer tube is arranged to flow in the downstream direction of the air flow after flowing from the upper side to the lower side on the upstream side of the air flow with respect to the condensation heat transfer tube while meandering the low-pressure low-temperature refrigerant. It is characterized by that.

(i)本発明の請求項1に係る自動販売機は、装備している庫内熱交換器が、凝縮伝熱管と蒸発伝熱管とを具備しているから、単一の熱交換器でありながら、商品室を選択的に加熱(ヒートポンプ運転)または冷却することができる。
また、凝縮伝熱管および蒸発伝熱管がいずれも、最も外側に配置されたフィンプレートの同じ側において取り出され、それぞれ異なった側において取り出されるものではないから、高圧高温冷媒流入配管、高圧高温冷媒流出配管、低圧低温冷媒流入配管および低圧低温冷媒流出配管(以下、まとめて「冷媒流入流出管」と総称する場合がある)を、一方側に集約して配置することができる。
このとき、高圧高温冷媒流入配管等は、凝縮伝熱管および蒸発伝熱管の折り返し部に干渉しないようにするため、最も外側に配置されたフィンプレートから所定の距離だけ離す必要がある。したがって、最も外側に配置されたフィンプレートの一方側に高圧高温冷媒流入配管および高圧高温冷媒流出配管が配置され、最も外側に配置されたフィンプレートの他方側に低圧低温冷媒流入配管および低圧低温冷媒流出配管が配置される場合に比較して、庫内熱交換器の幅を狭くすることができる。
さらに、凝縮伝熱管および蒸発伝熱管が共通のフィンプレートに接続されているから、凝縮伝熱管からの温熱放出(冷熱吸収)が、フィンプレートの蒸発伝熱管に近い範囲においても実行され、蒸発伝熱管からの冷熱放出(温熱吸収)が、フィンプレートの凝縮伝熱管に近い範囲においても実行される。すなわち、凝縮伝熱管および蒸発伝熱管のそれぞれに専用のフィンプレートを設けた場合に比較すると、凝縮伝熱管は蒸発伝熱管用の専用フィンプレートを取り込んだ形で温熱放出をし、蒸発伝熱管は凝縮伝熱管用の専用フィンプレートを取り込んだ形で冷熱放出をすることになるから、熱交換のための面積が増大し熱交換量が多くなる。
(I) The vending machine according to claim 1 of the present invention is a single heat exchanger because the internal heat exchanger equipped with it includes a condensation heat transfer tube and an evaporation heat transfer tube. However, the commodity room can be selectively heated (heat pump operation) or cooled.
In addition, both the condensation heat transfer tube and the evaporation heat transfer tube are taken out on the same side of the fin plate arranged on the outermost side and are not taken out on different sides. A pipe, a low-pressure low-temperature refrigerant inflow pipe, and a low-pressure / low-temperature refrigerant outflow pipe (hereinafter sometimes collectively referred to as “refrigerant inflow / outflow pipe”) can be collectively arranged on one side.
At this time, the high-pressure and high-temperature refrigerant inflow piping and the like need to be separated from the fin plate disposed on the outermost side by a predetermined distance so as not to interfere with the folded portions of the condensation heat transfer tube and the evaporation heat transfer tube. Therefore, the high pressure / high temperature refrigerant inflow piping and the high pressure / high temperature refrigerant outflow piping are arranged on one side of the outermost fin plate, and the low pressure / low temperature refrigerant inflow piping and low pressure / low temperature refrigerant are arranged on the other side of the outermost fin plate. Compared with the case where the outflow pipe is arranged, the width of the internal heat exchanger can be narrowed.
Furthermore, since the condensation heat transfer tube and the evaporation heat transfer tube are connected to a common fin plate, the heat release from the condensation heat transfer tube (cold heat absorption) is also performed in a range close to the evaporation heat transfer tube of the fin plate, Cold heat release (heat absorption) from the heat pipe is also executed in a range close to the condensation heat transfer pipe of the fin plate. In other words, compared to the case where a dedicated fin plate is provided for each of the condensation heat transfer tube and the evaporation heat transfer tube, the condensation heat transfer tube discharges the heat in a form incorporating the dedicated fin plate for the evaporation heat transfer tube, and the evaporation heat transfer tube Since cold heat is released in the form of taking in a dedicated fin plate for a condensed heat transfer tube, the area for heat exchange increases and the amount of heat exchange increases.

(ii)本発明の請求項2に係る自動販売機は、前記(i)の効果を奏すると共に、凝縮伝熱管が、高圧高温冷媒を蛇行させながら空気流れの下流側において下側から上側に流した後、空気流れのより上流側において上側から下側に流すように配置されるから、空気流れに対して高圧高温冷媒の流れ方向が「対向流」になるため、熱交換効率が高くなる。
また、蒸発伝熱管が、低圧低温冷媒を蛇行させながら上側から下側に流すように配置されているから、低圧低温冷媒の流れが円滑になり、蒸発伝熱管が詰まるおそれがなくなる。
(Ii) The vending machine according to claim 2 of the present invention has the effect of (i), and the condensation heat transfer tube flows from the lower side to the upper side on the downstream side of the air flow while meandering the high-pressure and high-temperature refrigerant. Then, since it is arranged to flow from the upper side to the lower side on the upstream side of the air flow, the flow direction of the high-pressure and high-temperature refrigerant becomes “opposite flow” with respect to the air flow, so that the heat exchange efficiency is increased.
Further, since the evaporation heat transfer tube is arranged to flow from the upper side to the lower side while meandering the low-pressure low-temperature refrigerant, the flow of the low-pressure low-temperature refrigerant becomes smooth, and the evaporation heat transfer tube is not likely to be clogged.

(iii)本発明に係る自動販売機(請求項3)は、前記(i)および(ii)の効果を奏すると共に、蒸発伝熱管が、低圧低温冷媒を蛇行させながら凝縮伝熱管に対し空気流れの上流側において上側から下側に流した後、空気流れの下流方向に流すように配置されているから、蒸発伝熱管の配置形態の自由度が増すと共に、熱交換量を増すことができる。   (Iii) The vending machine according to the present invention (Claim 3) has the effects of (i) and (ii), and the evaporative heat transfer tube flows air to the condensation heat transfer tube while meandering the low-pressure low-temperature refrigerant. Since it is arranged to flow in the downstream direction of the air flow after flowing from the upper side to the lower side on the upstream side, the degree of freedom of the arrangement form of the evaporation heat transfer tubes can be increased and the amount of heat exchange can be increased.

以下、本発明の実施の形態に係る自動販売機を、図を参照して説明する。なお、各図において同一または共通する部材については同一の符号を付し、一部の説明を省略する。
また、共通する内容を説明する際には、構成部材の名称を修飾する「甲、乙、丙」および添え字「a、b、c」の記載を省略する。
さらに、符号jの構成部材と符号kの構成部材とを連通して前者から後者に向けて冷媒を流す配管を「符号jk」にて示し、「配管jk」に設置された開閉弁および逆止弁の符号をそれぞれ「jkv」および「jkn」とする。また、冷媒の流れている配管を実線で、冷媒の流れていない配管を破線で、それぞれ示している。
なお、以下の実施の形態では、冷媒としてCO2 (二酸化炭素)を使用しているが、本発明はこれに限定するものではない。
Hereinafter, a vending machine according to an embodiment of the present invention will be described with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected about the same or common member, and one part description is abbreviate | omitted.
Further, when explaining the common contents, the description of “A, B, C” and subscripts “a, b, c” that modify the names of the constituent members is omitted.
Further, a pipe that communicates the component j and the component k and allows the refrigerant to flow from the former toward the latter is indicated by “reference jk”. The symbols of the valves are “jkv” and “jkn”, respectively. Moreover, the piping in which the refrigerant | coolant flows is shown with the continuous line, and the piping where the refrigerant | coolant does not flow is shown with the broken line, respectively.
In the following embodiment, CO 2 (carbon dioxide) is used as the refrigerant, but the present invention is not limited to this.

(実施の形態:自動販売機)
図1および図2は本発明の実施の形態に係る自動販売機を説明するものであって、図1は正面視の断面図、図2は側面視の断面図である。
図1において、自動販売機(以下「自販機」と称す)1000は、自販機1000の本体のキャビネット200と、キャビネット200の内部で断熱材300に包囲された商品収納庫401と、商品Sを補充する時に商品収納庫401を開閉する商品補充用扉404と、商品収納庫401と外気を遮断するための内扉405と、自販機1000の前扉406と、を有している。
商品収納庫401は仕切り板403AB、403BCによって商品室402A、402B、402Cに仕切られている。なお、以下の説明において、商品室402A、402B、402Cにおいて共通する内容については添え字「A、B、C」の記載を省略する。
(Embodiment: Vending machine)
1 and 2 illustrate a vending machine according to an embodiment of the present invention. FIG. 1 is a front sectional view, and FIG. 2 is a side sectional view.
In FIG. 1, a vending machine (hereinafter referred to as “vending machine”) 1000 replenishes the cabinet 200 of the main body of the vending machine 1000, the product storage box 401 surrounded by the heat insulating material 300 inside the cabinet 200, and the product S. A product replenishing door 404 that sometimes opens and closes the product storage 401, an inner door 405 for shutting off the product storage 401 and the outside air, and a front door 406 of the vending machine 1000 are provided.
The product storage 401 is partitioned into product rooms 402A, 402B, and 402C by partition plates 403AB and 403BC. In the following description, the subscript “A, B, C” is omitted for the contents common to the product rooms 402A, 402B, 402C.

各商品室402には、商品Sを収納するための商品収納ラック407と、商品収納ラック407から自然落下した商品Sを取出すための商品取出し口409と、商品Sを商品取出し口409まで誘導する商品誘導板408とが設置され、商品誘導板408の下方が庫内部品収納室410となっている。また、庫内空気を商品収納ラック407を経由して庫内部品収納室410に循環させるための循環ダクト420が設置されている。
そして、庫内部品収納室410には、庫内空気を商品誘導板408(通気孔が設けられている)を通過して商品Sに衝突させる送風手段430と、送風手段430の下流側(循環ダクト420から遠い側)に庫内熱交換器440と、送風手段430および庫内熱交換器440を収納する送風ダクト450と、送風ダクト450に連通して空気を通す風洞460と、庫内空気の温度を計測する庫内温度センサー500とが設置されている。
さらに、商品収納庫401の下方には、冷却加熱ユニット2000のコンデンシングユニット470および庫外ファン481を収納するための機械室480と、電装品を収納するための電装品収納室490とが配置されている。
In each of the product rooms 402, a product storage rack 407 for storing the product S, a product take-out port 409 for taking out the product S that naturally falls from the product storage rack 407, and the product S are guided to the product take-out port 409. A merchandise guide plate 408 is installed, and the lower part of the product guide plate 408 is an internal component storage chamber 410. In addition, a circulation duct 420 is provided for circulating the internal air to the internal component storage chamber 410 via the commodity storage rack 407.
In the internal component storage chamber 410, the blower 430 that causes the internal air to pass through the product guide plate 408 (provided with a vent hole) and collide with the product S, and the downstream side (circulation) of the blower 430. On the far side from the duct 420), the internal heat exchanger 440, the air duct 450 that houses the air blowing means 430 and the internal heat exchanger 440, the wind tunnel 460 that communicates with the air duct 450 and passes air, and the air inside the air chamber An in-chamber temperature sensor 500 for measuring the temperature is installed.
Further, a machine room 480 for storing the condensing unit 470 of the cooling and heating unit 2000 and the external fan 481 and an electrical component storage chamber 490 for storing electrical components are disposed below the product storage unit 401. Has been.

(冷却加熱ユニット)
図3は本発明の実施の形態に係る自動販売機に設置された冷却加熱ユニットを説明する構成図である。図3の(a)〜(c)において、冷却加熱ユニット2000は、冷媒を圧縮する圧縮機1と、圧縮機1により圧縮された冷媒(以下「高圧高温冷媒」と称す)を冷却する庫外凝縮器(以下「ガスクーラ」と称す)3と、ガスクーラ3により冷却された冷媒を膨張する膨張手段4(たとえば、電子膨張弁、キャピラリなど)と、膨張手段4により膨張された冷媒(以下「低圧低温冷媒」と称す)を蒸発させる甲蒸発部6a、乙蒸発部6bおよび庫内蒸発器(以下「丙蒸発器」と称す)7とを有する。
(Cooling heating unit)
FIG. 3 is a configuration diagram illustrating a cooling and heating unit installed in the vending machine according to the embodiment of the present invention. 3A to 3C, the cooling and heating unit 2000 cools the compressor 1 that compresses the refrigerant and the refrigerant that is compressed by the compressor 1 (hereinafter referred to as “high-pressure high-temperature refrigerant”). A condenser (hereinafter referred to as “gas cooler”) 3, an expansion means 4 (for example, an electronic expansion valve, a capillary, etc.) for expanding the refrigerant cooled by the gas cooler 3, and a refrigerant expanded by the expansion means 4 (hereinafter “low pressure”). A first evaporator 6a, a second evaporator 6b, and an internal evaporator (hereinafter referred to as a "steam evaporator") 7.

さらに、圧縮機1により圧縮された高圧高温冷媒が供給される甲凝縮部2aおよび乙凝縮部2bを有している。なお、後記するように、甲蒸発部6aと甲凝縮部2aとは甲庫内熱交換器440aを構成し、一方のみに冷媒が選択的に供給されるものである。同様に、乙蒸発部6bと乙凝縮部2bとは乙庫内熱交換器440bを構成し、一方のみに冷媒が選択的に供給されるものである。
また、膨張手段4に流入する直前の冷媒(温熱を有する)と、甲蒸発部6a、乙蒸発部6bまたは丙蒸発器7から流出した後の冷媒(冷熱を有する)との間で、熱交換をする熱回収手段(以下「内部熱交換器」と称す)8とを有している。
Furthermore, it has the former condensation part 2a and the second condensation part 2b to which the high-pressure high-temperature refrigerant | coolant compressed by the compressor 1 is supplied. As will be described later, the former evaporating section 6a and the former condensing section 2a constitute an in-house heat exchanger 440a, and the refrigerant is selectively supplied to only one of them. Similarly, the second evaporator 6b and the second condenser 2b constitute a second heat exchanger 440b, and the refrigerant is selectively supplied to only one of them.
Further, heat exchange is performed between the refrigerant (having warm heat) just before flowing into the expansion means 4 and the refrigerant (having cold heat) after flowing out from the former evaporation section 6a, the second evaporation section 6b or the soot evaporator 7. And a heat recovery means (hereinafter referred to as “internal heat exchanger”) 8.

(高圧高温冷媒系)
そして、圧縮機1とガスクーラ3とは蒸発パイプ9を経由して連通している。すなわち、圧縮機1と蒸発パイプ9とは開閉弁19vが設置された配管19によって連結され、蒸発パイプ9とガスクーラ3とは配管93によって連結されている。
ガスクーラ3と膨張手段4とは内部熱交換器8を経由して連通している。すなわち、ガスクーラ3と内部熱交換器8を構成する温熱配管8aとは逆止弁38nが設置された配管38によって連通され、温熱配管8aと膨張手段4とは配管84によって連結されている。
(High pressure / high temperature refrigerant system)
The compressor 1 and the gas cooler 3 communicate with each other via an evaporation pipe 9. That is, the compressor 1 and the evaporation pipe 9 are connected by a pipe 19 provided with an on-off valve 19v, and the evaporation pipe 9 and the gas cooler 3 are connected by a pipe 93.
The gas cooler 3 and the expansion means 4 communicate with each other via an internal heat exchanger 8. That is, the gas cooler 3 and the thermal pipe 8a constituting the internal heat exchanger 8 are communicated with each other by the pipe 38 provided with the check valve 38n, and the thermal pipe 8a and the expansion means 4 are connected by the pipe 84.

圧縮機1と甲凝縮部2aとは開閉弁12avが設置された配管12aによって、圧縮機1と乙凝縮部2bとは開閉弁12bvが設置された配管12bによって連通されている。また、甲凝縮部2aと内部熱交換器8を構成する温熱配管8aとは、逆止弁28anが設置された配管28aによって、乙凝縮部2bと内部熱交換器8を構成する温熱配管8aとは、逆止弁28bnが設置された配管28bによって連通されている。
よって、圧縮機1によって圧縮された冷媒は、甲凝縮部2a、乙凝縮部2bまたはガスクーラ3の何れか択一的に経由して膨張手段4に供給されることになる。
本発明において、圧縮機1から膨張手段4に至る高圧高温冷媒の径路を構成する前記配管および開閉弁等をまとめて「高圧高温冷媒分配手段」と称する。なお、高圧高温冷媒分配手段と、後記する低圧低温冷媒分配手段とを併せたものを、「冷媒分配手段」と称す。
The compressor 1 and the former condensing part 2a are connected with each other by a pipe 12a provided with an on-off valve 12av, and the compressor 1 and the second condenser part 2b are connected with a pipe 12b provided with an on-off valve 12bv. In addition, the former condenser part 2a and the thermal pipe 8a constituting the internal heat exchanger 8 are constituted by the pipe 28a provided with the check valve 28an, and the hot pipe 8a constituting the second condenser part 2b and the internal heat exchanger 8; Are communicated by a pipe 28b provided with a check valve 28bn.
Therefore, the refrigerant compressed by the compressor 1 is supplied to the expansion means 4 via any one of the former condensing part 2a, the second condensing part 2b, or the gas cooler 3.
In the present invention, the pipes and the on-off valves constituting the high-pressure and high-temperature refrigerant path from the compressor 1 to the expansion means 4 are collectively referred to as “high-pressure and high-temperature refrigerant distribution means”. Note that a combination of the high-pressure and high-temperature refrigerant distribution means and the low-pressure and low-temperature refrigerant distribution means described later is referred to as “refrigerant distribution means”.

(低圧低温冷媒系)
膨張手段4と甲蒸発部6aとは開閉弁46avが設置された配管46aによって、膨張手段4と乙蒸発部6bとは開閉弁46bvが設置された配管46bによって、膨張手段4と丙蒸発器7とは開閉弁47vが設置された配管47によって、それぞれ連通している。
また、甲蒸発部6aと内部熱交換器8を構成する冷熱配管8bとが配管68aによって、乙蒸発部6bと冷熱配管8bとが配管68bによって、丙蒸発器7と冷熱配管8bとが配管78によって、それぞれ連結している。
そして、冷熱配管8bと圧縮機1とが配管81によって連通している。
よって、膨張手段4において膨張した低圧低温冷媒は、甲蒸発部6a、乙蒸発部6bまたは丙蒸発器7の何れかに択一的に供給され、その後、圧縮機1に戻ることになる。本発明において、膨張手段4から圧縮機1に至る低圧低温冷媒の径路を構成する前記配管および開閉弁等をまとめて「低圧低温冷媒分配手段」と称する。
(Low-pressure low-temperature refrigerant system)
The expansion means 4 and the former evaporation section 6a are connected by a pipe 46a provided with an on-off valve 46av, and the expansion means 4 and the second evaporation section 6b are connected by a pipe 46b provided with an on-off valve 46bv. Are communicated with each other by a pipe 47 provided with an on-off valve 47v.
Further, the former evaporation section 6a and the cooling / heating pipe 8b constituting the internal heat exchanger 8 are connected by a pipe 68a, the second evaporation section 6b and the cooling / heating pipe 8b are connected by a pipe 68b, and the soot evaporator 7 and the cooling / heating pipe 8b are connected by a pipe 78. Are connected to each other.
The cooling / heating pipe 8 b and the compressor 1 communicate with each other through a pipe 81.
Therefore, the low-pressure low-temperature refrigerant expanded in the expansion means 4 is alternatively supplied to any one of the former evaporation unit 6a, the second evaporation unit 6b, or the soot evaporator 7, and then returns to the compressor 1. In the present invention, the piping, the on-off valve and the like constituting the path of the low-pressure and low-temperature refrigerant from the expansion means 4 to the compressor 1 are collectively referred to as “low-pressure and low-temperature refrigerant distribution means”.

したがって、高圧高温冷媒系を形成する圧縮機1から膨張手段4に流入するまでの配管19、93、38、8a、84、12、28と、低圧低温冷媒系を形成する膨張手段4を出てから圧縮機1に戻るまでの配管46、47、68、78、8b、81とが、完全に分離している。したがって、低圧低温冷媒系に高圧高温冷媒が侵入することがない。
なお、冷却加熱ユニットにおける冷媒の流れ方については、別途詳細に説明する。
Accordingly, the pipes 19, 93, 38, 8 a, 84, 12, 28 from the compressor 1 forming the high pressure / high temperature refrigerant system to the expansion means 4 and the expansion means 4 forming the low pressure / low temperature refrigerant system are exited. The pipes 46, 47, 68, 78, 8 b, 81 from the first to the compressor 1 are completely separated. Therefore, the high pressure / high temperature refrigerant does not enter the low pressure / low temperature refrigerant system.
Note that how the refrigerant flows in the cooling and heating unit will be described in detail separately.

(庫内熱交換器)
図4〜図7は、図3において説明された冷却加熱ユニットを形成する庫内熱交換器を模式的に説明するものであって、それぞれ(a)は側面図、(b)は平面図である。なお、図5〜図7に示す庫内熱交換器540、640、740は、図4に示す庫内熱交換器440における凝縮伝熱管442および蒸発伝熱管446の形態を変更したものであって、これを除く形態は甲庫内熱交換器440aに同じである。したがって、庫内熱交換器540、640、740は、庫内熱交換器440と同様の効果(幅を狭くすることができると共に、熱交換量が多くなる。これについては後述する)を奏する。
(Internal heat exchanger)
4 to 7 schematically illustrate the internal heat exchanger forming the cooling and heating unit described in FIG. 3, wherein (a) is a side view and (b) is a plan view. is there. In addition, the in-compartment heat exchangers 540, 640, and 740 shown in FIGS. 5 to 7 are modified versions of the condensation heat transfer tube 442 and the evaporation heat transfer tube 446 in the in-compartment heat exchanger 440 shown in FIG. The form except this is the same as the heat exchanger 440a in the warehouse. Therefore, the in-compartment heat exchangers 540, 640, and 740 have the same effects as the in-compartment heat exchanger 440 (the width can be reduced and the amount of heat exchange increases. This will be described later).

(庫内熱交換器−その1)
図4において、庫内熱交換器440(甲庫内熱交換器440aおよび乙庫内熱交換器440bに同じ)は、空気との間で熱交換可能な複数のフィンプレート441と、複数のフィンプレート441を伝熱自在に貫通する高圧高温冷媒が流れる凝縮伝熱管442と、複数のフィンプレート441を伝熱自在に貫通する低圧低温冷媒が流れる蒸発伝熱管446と、から形成されている。
(Internal heat exchanger-1)
In FIG. 4, the internal heat exchanger 440 (same as the internal heat exchanger 440a and the internal heat exchanger 440b) includes a plurality of fin plates 441 and a plurality of fins that can exchange heat with air. Condensation heat transfer tubes 442 through which high-pressure and high-temperature refrigerants pass through the plate 441 so as to transfer heat and vaporization heat transfer tubes 446 through which low-pressure and low-temperature refrigerants pass through the plurality of fin plates 441 so as to transfer heat are formed.

(フィンプレート)
複数のフィンプレート441は、空気流れに平行に配置され、互いに平行に設置された矩形状の板材であって、最も外側に配置された一対のフィンプレート441の外側に、それぞれ第1側板441aおよび第2側板441bが配置されている。
(Fin plate)
The plurality of fin plates 441 are rectangular plate members that are arranged in parallel to the air flow and are arranged in parallel to each other, and are disposed on the outer sides of the pair of fin plates 441 arranged on the outermost sides, respectively. A second side plate 441b is disposed.

(凝縮伝熱管)
凝縮伝熱管442は略平行に配置され、第1側板441a、複数のフィンプレート441および第2側板441bを貫通する複数の凝縮伝熱直管部442sと、第1側板441aの外側および第2側板441bの外側において、凝縮伝熱直管部442sの端部同士を接合する複数の凝縮伝熱曲管部442rと、から蛇行状(ジグザグ)に形成されている。凝縮伝熱曲管部442rは凝縮伝熱直管部442sと同一サイズの管体を略半円状に曲げたものである。
そして、凝縮伝熱管442の冷媒入側端(下寄りに配置された凝縮伝熱直管部442sの凝縮伝熱曲管部442rが接合されていない端部)および冷媒出側端(下寄りに配置された凝縮伝熱直管部442sの凝縮伝熱曲管部442rが接合されていない端部)は、いずれも第1側板441aから外側に突出し、前者には配管(高圧高温冷媒流入配管に同じ)12が後者には配管(高圧高温冷媒流出配管に同じ)28がそれぞれ接続されている。
(Condensation heat transfer tube)
The condensed heat transfer tubes 442 are arranged substantially in parallel, and are provided with a plurality of condensed heat transfer straight tube portions 442s penetrating the first side plate 441a, the plurality of fin plates 441 and the second side plate 441b, and the outer side of the first side plate 441a and the second side plate. On the outside of 441b, it is formed in a meandering shape (zigzag) from a plurality of condensed heat transfer bent tube portions 442r that join the ends of the condensed heat transfer straight tube portions 442s. The condensed heat transfer bent tube portion 442r is obtained by bending a tubular body having the same size as the condensed heat transfer straight tube portion 442s into a substantially semicircular shape.
The refrigerant inlet side end of the condensed heat transfer tube 442 (the end portion where the condensed heat transfer bent tube portion 442r of the condensed heat transfer straight tube portion 442s arranged at the lower side is not joined) and the refrigerant outlet side end (lower side). The end portions of the arranged condensed heat transfer straight pipe portion 442s where the condensed heat transfer bent tube portion 442r is not joined protrude outside from the first side plate 441a, and the former is a pipe (high-pressure high-temperature refrigerant inflow pipe). The same) 12 is connected to a pipe 28 (the same as the high-pressure and high-temperature refrigerant outflow pipe) 28 respectively.

このとき、配管12から流入した高圧高温冷媒は、まず、空気流れの下流側において下段側の凝縮伝熱直管部442sから、より上段側の凝縮伝熱直管部442sに流れ込み、最上段の凝縮伝熱直管部442sに到達した後は、より下段側の凝縮伝熱直管部442sに流れ込み、やがて、最下段の凝縮伝熱直管部442sから配管28に流出する。すなわち、高圧高温冷媒の流れ方向が、空気流れに対して「対向流」になっているから、熱交換効率が高くなっている。
また、凝縮伝熱管442の下段側から上段側に移る「折り返し部」が、略半円状に曲げられた凝縮伝熱曲管部442rに形成されているから、当該部分の径路長が最短であって、高圧高温冷媒の滞留が防止され、流れが円滑になっている。
At this time, the high-pressure high-temperature refrigerant that has flowed in from the pipe 12 first flows from the lower-stage condensation heat transfer straight pipe section 442s to the upper-stage condensation heat transfer straight pipe section 442s on the downstream side of the air flow. After reaching the condensed heat transfer straight tube portion 442s, it flows into the lower condensed heat transfer straight tube portion 442s, and eventually flows out from the lowermost condensed heat transfer straight tube portion 442s to the pipe 28. That is, since the flow direction of the high-pressure and high-temperature refrigerant is “opposite flow” with respect to the air flow, the heat exchange efficiency is high.
In addition, since the “folded portion” that moves from the lower stage side to the upper stage side of the condensed heat transfer tube 442 is formed in the condensed heat transfer bent tube portion 442r bent in a substantially semicircular shape, the path length of the portion is the shortest. Thus, the high-pressure and high-temperature refrigerant is prevented from staying and the flow is smooth.

(蒸発伝熱管)
蒸発伝熱管446は略平行に配置され、第1側板441a、複数のフィンプレート441および第2側板441bを貫通する複数の蒸発伝熱直管部446sと、第1側板441aの外側および第2側板441bの外側において、蒸発伝熱直管部446sの端部同士を接合する複数の蒸発伝熱曲管部446rと、から蛇行状(ジグザグ)に形成されている。蒸発伝熱曲管部446rは蒸発伝熱直管部446sと同一サイズの管体を略半円状に曲げたものである。
そして、蒸発伝熱管446の冷媒入側端(最上段の蒸発伝熱直管部446sの蒸発伝熱曲管部446rが接合されていない端面)および冷媒出側端(最下段の蒸発伝熱直管部446sの蒸発伝熱曲管部446rが接合されていない端面)は、いずれも第1側板441aから外側に突出し、前者には配管(低温低圧冷媒流入配管に同じ)46が後者には配管(低圧低温冷媒流出配管に同じ)68がそれぞれ接続されている。
(Evaporation heat transfer tube)
The evaporation heat transfer tubes 446 are arranged substantially in parallel, and a plurality of evaporation heat transfer straight tube portions 446 s passing through the first side plate 441 a, the plurality of fin plates 441 and the second side plate 441 b, the outside of the first side plate 441 a and the second side plate. Outside the 441b, the evaporative heat transfer straight tube portion 446s is formed in a meandering manner (zigzag) from a plurality of evaporative heat transfer bent tube portions 446r that join the ends of the evaporative heat transfer straight tube portion 446s. The evaporative heat transfer bent tube portion 446r is formed by bending a tubular body having the same size as the evaporative heat transfer straight tube portion 446s into a substantially semicircular shape.
Then, the refrigerant inlet side end of the evaporation heat transfer tube 446 (the end surface to which the evaporation heat transfer bent tube portion 446r of the uppermost stage evaporation heat transfer straight tube portion 446s is not joined) and the refrigerant outlet side end (the lowermost stage evaporation heat transfer direct The end portion of the tube portion 446s where the evaporative heat transfer bent tube portion 446r is not joined protrudes outward from the first side plate 441a, and the former (the same as the low-temperature and low-pressure refrigerant inflow piping) 46 is the latter. 68 (same as low-pressure low-temperature refrigerant outflow piping) are connected to each other.

このとき、配管46から流入した低圧低温冷媒は、まず、上段側の蒸発伝熱直管部446sから、より下段側の蒸発伝熱直管部446sに流れ込み、最下段の凝縮伝熱直管部442sに到達した後は、より空気流れの下流方向の蒸発伝熱直管部446sに流れ込み、やがて、最下段かつ最下流の蒸発伝熱直管部446sから配管68に流出する。すなわち、定圧低温冷媒は、重力の働く方向に流れるため、流れが円滑になっている。   At this time, the low-pressure low-temperature refrigerant flowing from the pipe 46 first flows from the upper-stage evaporation heat transfer straight pipe section 446 s into the lower-stage evaporation heat transfer straight pipe section 446 s, and the lowest-stage condensation heat transfer straight pipe section. After reaching 442 s, it further flows into the evaporative heat transfer straight tube portion 446 s in the downstream direction of the air flow, and eventually flows out from the lowest and most downstream evaporative heat transfer straight tube portion 446 s to the pipe 68. That is, the constant-pressure low-temperature refrigerant flows in a direction in which gravity works, and thus the flow is smooth.

(庫内熱交換器の幅について)
凝縮伝熱曲管部442rおよび蒸発伝熱曲管部446rは、何れも第1側板441aまたは第2側板441bから距離Rだけ突出している。そして、配管12、配管28、配管46および配管68は、何れも凝縮伝熱曲管部442rおよび蒸発伝熱曲管部446rとの干渉を避けるため、より外側に配置されている。すなわち、距離Rよりも大きな距離(例えば、距離H)だけ外側に位置している。
したがって、例えば、配管12および配管28を第1側板441aから距離Rだけ突出させて配置し、一方、配管46および配管68を第2側板441bから距離Rだけ突出させて配置した場合に比較して、配管12、配管28、配管46および配管68を一方側に集約して、第1側板441aから距離Rだけ突出させて配置しているから、「距離H−距離R」だけ庫内熱交換器440の幅が狭くなっている。
すなわち、庫内熱交換器440は幅の狭い商品室(例えば、商品室402B)に設置するのに好適である。
(About the width of the internal heat exchanger)
The condensation heat transfer bent tube portion 442r and the evaporation heat transfer bent tube portion 446r both protrude from the first side plate 441a or the second side plate 441b by a distance R. The pipe 12, the pipe 28, the pipe 46, and the pipe 68 are all arranged on the outer side in order to avoid interference with the condensed heat transfer bent tube portion 442r and the evaporation heat transfer bent tube portion 446r. That is, it is located outside by a distance (for example, distance H) larger than the distance R.
Therefore, for example, the pipe 12 and the pipe 28 are arranged to protrude from the first side plate 441a by a distance R, while the pipe 46 and the pipe 68 are arranged to protrude from the second side plate 441b by a distance R as compared with the case. Since the pipe 12, the pipe 28, the pipe 46 and the pipe 68 are gathered on one side and protruded from the first side plate 441a by the distance R, the internal heat exchanger is only "distance H-distance R". The width of 440 is narrowed.
That is, the internal heat exchanger 440 is suitable for installation in a narrow product room (for example, the product room 402B).

(庫内熱交換器の熱交換能力について)
複数の凝縮伝熱直管部442sおよび複数の蒸発伝熱直管部446sは、それぞれ共通の複数のフィンプレート441に接続されているから、凝縮伝熱直管部442sからの温熱放出(冷熱吸収)が、フィンプレート441の蒸発伝熱直管部446sに近い範囲においても実行され、同様に、蒸発伝熱直管部446sからの冷熱放出(温熱吸収)が、フィンプレート441の凝縮伝熱直管部442sに近い範囲においても実行される。すなわち、凝縮伝熱直管部442sおよび蒸発伝熱直管部446sのそれぞれに専用のフィンプレートを設けた場合に比較すると、前者は後者の専用フィンプレートを取り込んだ形で温熱放出をし、後者は前者の専用フィンプレートを取り込んだ形で冷熱放出をすることに相当するから、熱交換のための面積が増大し熱交換量が多くなる。
(About the heat exchange capacity of the internal heat exchanger)
The plurality of condensing heat transfer straight tube portions 442s and the plurality of evaporation heat transfer straight tube portions 446s are connected to a plurality of common fin plates 441, respectively, and therefore release heat from the condensing heat transfer straight tube portion 442s (cold heat absorption). ) Is also executed in a range close to the evaporation heat transfer straight tube portion 446s of the fin plate 441. Similarly, the cold heat release (heat absorption) from the evaporation heat transfer straight tube portion 446s is the condensation heat transfer direct of the fin plate 441. It is also executed in a range close to the tube portion 442s. That is, compared with the case where dedicated fin plates are provided in each of the condensation heat transfer straight tube portion 442s and the evaporation heat transfer straight tube portion 446s, the former discharges the heat in a form in which the latter dedicated fin plate is taken in, and the latter Corresponds to releasing the cold heat in the form of incorporating the former dedicated fin plate, increasing the area for heat exchange and increasing the amount of heat exchange.

(庫内熱交換器−その2)
図5において、配管12から流入した高圧高温冷媒は、まず、空気流れの下流側において下段側の凝縮伝熱直管部442sに流入して、より上段側の凝縮伝熱直管部442sに流れ込み、最上段の凝縮伝熱直管部442sに到達した後は、より下段側の凝縮伝熱直管部442sに流れ込み、やがて、最下段の凝縮伝熱直管部442sから配管28に流出するものであるが、より上段側の凝縮伝熱直管部442sに流れ込む途中で、一旦、より下段側の凝縮伝熱直管部442sに流れ込む径路を有するものである。
(Internal heat exchanger-2)
In FIG. 5, the high-pressure high-temperature refrigerant that has flowed from the pipe 12 first flows into the lower-stage condensation heat transfer straight pipe section 442s on the downstream side of the air flow, and flows into the upper-stage condensation heat transfer straight pipe section 442s. After reaching the uppermost condensation heat transfer straight tube portion 442s, the refrigerant flows into the lower condensation heat transfer straight tube portion 442s and eventually flows out from the lowermost condensation heat transfer straight tube portion 442s to the pipe 28. However, in the middle of flowing into the condensation heat transfer straight tube portion 442 s on the upper stage side, a path that once flows into the condensation heat transfer straight tube portion 442 s on the lower stage side is provided.

(庫内熱交換器−その3)
図6において、庫内熱交換器640は、配管46から流入した低圧低温冷媒は、まず、空気流れとは反対方向に向かって「対向流」となって流れた後、下方に向かって流れるから、低圧低温冷媒の流れは側面視でコ字状を呈する。また、配管12から流れ込んだ高圧高温冷媒も、一部において対向流となって流れている。なお、図中、白丸443は、フィンプレート441、第1側板441aおよび第2側板441bに設けられた貫通孔であって、凝縮伝熱直管部442sまたは蒸発伝熱直管部446sの何れも貫通していないものである。
(Internal heat exchanger-3)
In FIG. 6, in the internal heat exchanger 640, the low-pressure low-temperature refrigerant that has flowed in from the pipe 46 first flows in the “opposite flow” direction opposite to the air flow, and then flows downward. The flow of the low-pressure low-temperature refrigerant has a U-shape when viewed from the side. Further, the high-pressure and high-temperature refrigerant that has flowed from the pipe 12 also flows as a counterflow in part. In the figure, a white circle 443 is a through hole provided in the fin plate 441, the first side plate 441a, and the second side plate 441b, and any of the condensed heat transfer straight tube portion 442s and the evaporation heat transfer straight tube portion 446s. It is not penetrated.

(庫内熱交換器−その4)
図7において、庫内熱交換器740は、配管46から流入した低圧低温冷媒およびは配管12から流入した高圧高温冷媒が、いずれも側面視で略コ字状に流れ、蒸発伝熱直管部446sが、凝縮伝熱直管部442sに挟まれたように配置されている。したがって、蒸発伝熱直管部446sは風上方向にも広いフィンプレートを有しているとみなすことができる。
(Internal heat exchanger-4)
In FIG. 7, in the internal heat exchanger 740, the low-pressure and low-temperature refrigerant flowing in from the pipe 46 and the high-pressure and high-temperature refrigerant flowing in from the pipe 12 both flow in a substantially U shape in a side view, and the evaporative heat transfer straight pipe portion 446s is arrange | positioned so that it may be pinched | interposed into the condensation heat-transfer straight pipe part 442s. Therefore, it can be considered that the evaporative heat transfer straight pipe portion 446 s has a wide fin plate in the windward direction.

(運転方法1:HHCモード)
次に、再び図3を参照して自動販売機1000の運転方法について説明する。
図3の(a)において、高圧冷媒系では、開閉弁12av、12bvを開いて開閉弁19vを閉じ、一方、低圧冷媒系では、開閉弁46av、46bvを閉じて開閉弁47vを開いている。したがって、高圧高温冷媒は甲凝縮器2aおよび乙凝縮器2bに流入して凝縮し(周囲に温熱を放出する)、一方、低圧低温冷媒は甲蒸発部6aおよび乙蒸発部6bには流入しないで、丙蒸発器7に流入して蒸発する(周囲の熱を吸収する)。
すなわち、商品室402Aおよび商品室402Bが加熱、商品室402Cが冷却されることになる。
(Driving method 1: HHC mode)
Next, the operation method of the vending machine 1000 will be described with reference to FIG. 3 again.
In FIG. 3A, in the high-pressure refrigerant system, the on-off valves 12av and 12bv are opened and the on-off valve 19v is closed, while in the low-pressure refrigerant system, the on-off valves 46av and 46bv are closed and the on-off valve 47v is opened. Therefore, the high-pressure and high-temperature refrigerant flows into the upper condenser 2a and the second condenser 2b and condenses (releases the heat to the surroundings), while the low-pressure and low-temperature refrigerant does not flow into the first and second evaporation parts 6a and 6b. Then, it flows into the soot evaporator 7 and evaporates (absorbs ambient heat).
That is, the product room 402A and the product room 402B are heated, and the product room 402C is cooled.

(運転方法2:HCモード、HCCモード)
図3の(b)において、高圧冷媒系では、開閉弁12avを開いて開閉弁12bvおよび開閉弁19vを閉じ、一方、低圧冷媒系で開閉弁46bvおよび開閉弁47vを閉じて開閉弁46bvを開いている。したがって、高圧高温冷媒は甲凝縮器2aに流入して凝縮し(周囲に温熱を放出する)、乙凝縮器2bには流入しない。一方、低圧低温冷媒は甲蒸発部6aに流入しないで、乙蒸発部6bに流入して蒸発する(周囲の熱を吸収する)。すなわち、商品室402Aが加熱、商品室402Cが冷却されることになる。
なお、このとき、低圧低温冷媒は、開閉弁47vを閉じているから丙蒸発器7に流入しないが、開閉弁47vを開いて丙蒸発器7に流入させてもよい。そうすると、商品室402Aが加熱、商品室402Bおよび商品室402Cが冷却されることになる。
(Driving method 2: HC mode, HCC mode)
3B, in the high-pressure refrigerant system, the on-off valve 12av is opened and the on-off valve 12bv and the on-off valve 19v are closed, while in the low-pressure refrigerant system, the on-off valve 46bv and the on-off valve 47v are closed and the on-off valve 46bv is opened. ing. Therefore, the high-pressure and high-temperature refrigerant flows into the upper condenser 2a and condenses (releases warm heat to the surroundings), and does not flow into the second condenser 2b. On the other hand, the low-pressure low-temperature refrigerant does not flow into the former evaporation unit 6a, but flows into the second evaporation unit 6b and evaporates (absorbs ambient heat). That is, the product room 402A is heated and the product room 402C is cooled.
At this time, the low-pressure low-temperature refrigerant does not flow into the soot evaporator 7 because the on-off valve 47v is closed, but may be opened into the soot evaporator 7 by opening the on-off valve 47v. Then, the product room 402A is heated, and the product room 402B and the product room 402C are cooled.

(運転方法3:CCモード、CCCモード)
図3の(c)において、高圧冷媒系では、開閉弁12av、12bvを閉じて開閉弁19vを開き、一方、低圧冷媒系で開閉弁46av、46bvを開いて開閉弁47vを閉じている。したがって、高圧高温冷媒はガスクーラ3に流入して凝縮し(周囲に温熱を放出する)、甲凝縮器2aおよび乙凝縮器2bには流入しない。一方、低圧低温冷媒は甲蒸発部6aおよび乙蒸発部6bに流入して蒸発する(周囲の熱を吸収する)。すなわち、商品室402Aおよび商品室402Bが冷却されることになる。
なお、このとき、低圧低温冷媒は、開閉弁47vを閉じているから丙蒸発器7に流入しないが、開閉弁47vを開いて丙蒸発器7に流入させてもよい。そうすると、全ての商品室402A、402B、402Cが冷却されることになる。
(Driving method 3: CC mode, CCC mode)
In FIG. 3C, in the high-pressure refrigerant system, the on-off valves 12av and 12bv are closed and the on-off valve 19v is opened, while in the low-pressure refrigerant system, the on-off valves 46av and 46bv are opened and the on-off valve 47v is closed. Therefore, the high-pressure and high-temperature refrigerant flows into the gas cooler 3 and condenses (releases warm heat to the surroundings), but does not flow into the former condenser 2a and the second condenser 2b. On the other hand, the low-pressure low-temperature refrigerant flows into the upper evaporation section 6a and the second evaporation section 6b and evaporates (absorbs ambient heat). That is, the product room 402A and the product room 402B are cooled.
At this time, the low-pressure low-temperature refrigerant does not flow into the soot evaporator 7 because the on-off valve 47v is closed, but may be opened into the soot evaporator 7 by opening the on-off valve 47v. Then, all the product rooms 402A, 402B, 402C are cooled.

(冷却加熱ユニット:その2)
図8および図9は本発明の実施の形態に係る自動販売機における冷却加熱ユニットを説明する構成図である。前記のように自動販売機1000(実施の形態)は、冷却加熱ユニット2000(便宜上、冷却加熱ユニットその1と称す)を構成する庫内熱交換器440が、フィンプレートを共通にする蒸発部6と凝縮部2とを具備すること特徴としている。このとき、冷却加熱ユニット2000を構成するは配管模様(高圧冷媒系および低圧冷媒系の形態)は限定されないから、例えば、以下のような冷却加熱ユニット2000、3000であってよい。
(Cooling and heating unit: 2)
8 and 9 are configuration diagrams illustrating a cooling and heating unit in the vending machine according to the embodiment of the present invention. As described above, in the vending machine 1000 (the embodiment), the internal heat exchanger 440 constituting the cooling / heating unit 2000 (referred to as the cooling / heating unit 1 for convenience) has the evaporator 6 having a common fin plate. And the condensing part 2. At this time, since the piping pattern (the form of the high-pressure refrigerant system and the low-pressure refrigerant system) constituting the cooling and heating unit 2000 is not limited, for example, the following cooling and heating units 2000 and 3000 may be used.

図8において、冷却加熱ユニット3000は、直列に配置された甲凝縮器2aおよび乙凝縮器2bと、並列に配置された甲蒸発部6aおよび乙蒸発部6bとを有している。すなわち、圧縮機1と甲凝縮器2aとは開閉弁12vが設置された配管12によって連通され、甲凝縮器2aと乙凝縮器2bとは逆止弁12anが設置された配管12aと開閉弁12bvが設置された配管12bとによって連通され、乙凝縮器2bと内部熱交換器8を構成する温熱配管8aとは28によって連通されている。さらに、甲凝縮器2aはバイパス逆止弁22anが設置されたバイパス配管22aを具備し、乙凝縮器2bはバイパス開閉弁22bvが設置されたバイパス配管22bを具備している。そして、低圧冷媒系は冷却加熱ユニット2000と同じであるから、低圧冷媒系に高圧の冷媒が侵入することがない。   In FIG. 8, the cooling and heating unit 3000 has a former condenser 2a and a second condenser 2b arranged in series, and a first evaporator 6a and a second evaporator 6b arranged in parallel. That is, the compressor 1 and the former condenser 2a are communicated with each other by a pipe 12 provided with an on-off valve 12v, and the former condenser 2a and the former condenser 2b are connected with a pipe 12a provided with a check valve 12an and an on-off valve 12bv. Are connected by a pipe 12b in which is installed, and the heat condenser pipe 8a constituting the internal heat exchanger 8 is connected by 28. Further, the former condenser 2a includes a bypass pipe 22a provided with a bypass check valve 22an, and the second condenser 2b includes a bypass pipe 22b provided with a bypass opening / closing valve 22bv. Since the low-pressure refrigerant system is the same as the cooling heating unit 2000, the high-pressure refrigerant does not enter the low-pressure refrigerant system.

そして、高圧冷媒系では、開閉弁12v、12bvを開いて開閉弁19vおよびバイパス開閉弁22bvを閉じ、一方、低圧低温冷媒系では、開閉弁46av、46bvを閉じて開閉弁47vを開いている(図8参照)。したがって、高圧高温冷媒は甲凝縮部2aおよび乙凝縮部2bに流入して凝縮し(周囲に温熱を放出する)、一方、低圧低温冷媒は甲蒸発部6aおよび乙蒸発部6bには流入しないで、丙蒸発器7に流入して蒸発する(周囲の熱を吸収する)。すなわち、商品室402Aおよび商品室402Bが加熱され、商品室402Cが冷却されることになる(HHCモード)。   In the high-pressure refrigerant system, the on-off valves 12v and 12bv are opened and the on-off valve 19v and the bypass on-off valve 22bv are closed. On the other hand, in the low-pressure low-temperature refrigerant system, the on-off valves 46av and 46bv are closed and the on-off valve 47v is opened ( (See FIG. 8). Therefore, the high-pressure and high-temperature refrigerant flows into the former condensing part 2a and the second condensing part 2b and condenses (releases heat to the surroundings), while the low-pressure and low-temperature refrigerant does not flow into the first and second evaporating parts 6a and 6b. Then, it flows into the soot evaporator 7 and evaporates (absorbs ambient heat). That is, the product room 402A and the product room 402B are heated, and the product room 402C is cooled (HHC mode).

また、高圧冷媒系では、開閉弁12vおよびバイパス開閉弁22bvを開いて開閉弁19vおよび開閉弁12bvを閉じ、一方、低圧低温冷媒系では、開閉弁46av、46bvを閉じて開閉弁47vを開いた場合、商品室402Aが加熱され、商品室402Bが冷却されることになる(図示しない、HCモード)。このとき、開閉弁47vを開いて丙蒸発器7に流入させてもよい(図示しない、HCCモード)。
さらに、高圧冷媒系では、開閉弁12v、12bvおよびバイパス開閉弁22bvを閉じて開閉弁19vを開き、一方、低圧低温冷媒系で開閉弁46av、46bvを開いて開閉弁47vを閉じた場合、商品室402Aおよび商品室402Bが冷却される(図示しない、CCモード)。このとき、開閉弁47vを開いて丙蒸発器7に流入させてもよい(図示しない、CCCモード)。
In the high-pressure refrigerant system, the on-off valve 12v and the bypass on-off valve 22bv are opened and the on-off valve 19v and the on-off valve 12bv are closed, while in the low-pressure low-temperature refrigerant system, the on-off valves 46av and 46bv are closed and the on-off valve 47v is opened. In this case, the product room 402A is heated and the product room 402B is cooled (HC mode not shown). At this time, the on-off valve 47v may be opened and flow into the soot evaporator 7 (not shown, HCC mode).
Further, in the high-pressure refrigerant system, the on-off valves 12v and 12bv and the bypass on-off valve 22bv are closed and the on-off valve 19v is opened. On the other hand, in the low-pressure low-temperature refrigerant system, the on-off valves 46av and 46bv are opened and the on-off valve 47v is closed. Room 402A and product room 402B are cooled (CC mode not shown). At this time, the on-off valve 47v may be opened to flow into the soot evaporator 7 (CCC mode not shown).

(冷却加熱ユニット:その3)
図9において、冷却加熱ユニット3000では、圧縮器が一段目圧縮部1aと二段目圧縮部1bとを具備し、熱交換器3が一段目圧縮部1aにおいて圧縮された冷媒を冷却する中圧熱交換器3aと、二段目圧縮部1bにおいて圧縮された冷媒を冷却する高圧熱交換器3bとを具備し、直列に配置された甲凝縮部2aおよび乙凝縮部2bと、並列に配置された甲蒸発部6aおよび乙蒸発部bとを有している。
(Cooling and heating unit: Part 3)
In FIG. 9, in the cooling and heating unit 3000, the compressor includes a first-stage compression unit 1a and a second-stage compression unit 1b, and the heat exchanger 3 cools the refrigerant compressed in the first-stage compression unit 1a. A heat exchanger 3a and a high-pressure heat exchanger 3b that cools the refrigerant compressed in the second-stage compression unit 1b are provided, and are arranged in parallel with the former condensing unit 2a and the second condensing unit 2b arranged in series. It has the former evaporation part 6a and the second evaporation part b.

すなわち、一段目圧縮部1aと甲凝縮部2aとは開閉弁12avが設置された配管12aによって連通され、甲凝縮部2aと二段目圧縮部1bとは逆止弁21anが設置された配管21aによって連通され、二段目圧縮部1bと乙凝縮部2bとは開閉弁12bvが設置された配管12bとによって連通され、乙凝縮部2bと内部熱交換器8を構成する温熱配管8aとは逆止弁21bnが設置された配管21bと開閉弁28vが設置された配管28とによって連通されている(位置Aにおいて配管38に接続している)。   That is, the first-stage compression unit 1a and the first-stage condensing part 2a communicate with each other by a pipe 12a provided with an on-off valve 12av, and the first-stage condensing part 2a and the second-stage compression part 1b are provided with a pipe 21a provided with a check valve 21an. The second-stage compression section 1b and the second condensation section 2b are communicated by a pipe 12b provided with an on-off valve 12bv, and are opposite to the second-stage condensation section 2b and the thermal pipe 8a constituting the internal heat exchanger 8. The pipe 21b in which the stop valve 21bn is installed communicates with the pipe 28 in which the on-off valve 28v is installed (connected to the pipe 38 at the position A).

さらに、配管21bは、開閉弁23vが設置された配管23によって中圧熱交換器3aの入口(図中、位置「B」にて示す)に連通され、開閉弁29vが設置された配管29によって蒸発パイプ9の入口(図中、位置「C」にて示す)に連通されている。
また、一段目圧縮部1aと中圧熱交換器3aとは開閉弁13avが設置された配管13aによって連通され、中圧熱交換器3aと二段目圧縮部1bと逆止弁31anが設置された配管31aによって連通されている。さらに、配管13aと配管31aとを連通し、開閉弁(以下、「バイパス開閉弁」と称す)11vが設置されたバイパス配管11(中圧熱交換器3aをバイパスする)が設置されている。
なお、低圧低温冷媒系については冷却加熱ユニット2000に同じである。
Further, the pipe 21b is communicated with an inlet (indicated by a position “B” in the drawing) of the intermediate pressure heat exchanger 3a by a pipe 23 in which an on-off valve 23v is installed, and by a pipe 29 in which an on-off valve 29v is installed. It communicates with an inlet of the evaporation pipe 9 (indicated by a position “C” in the figure).
The first-stage compression unit 1a and the intermediate-pressure heat exchanger 3a are communicated with each other by a pipe 13a provided with an on-off valve 13av, and the intermediate-pressure heat exchanger 3a, the second-stage compression unit 1b, and a check valve 31an are installed. The pipe 31a communicates. Furthermore, a bypass pipe 11 (bypassing the intermediate pressure heat exchanger 3a) in which an open / close valve (hereinafter referred to as a “bypass open / close valve”) 11v is provided, which connects the pipe 13a and the pipe 31a, is provided.
The low-pressure low-temperature refrigerant system is the same as that of the cooling / heating unit 2000.

したがって、高圧冷媒系では、開閉弁12av、12bvを開いて開閉弁19vおよびバイパス開閉弁11vを閉じ、一方、低圧低温冷媒系では、開閉弁46av、46bvを閉じて開閉弁47vを開いた場合、高圧低温系において、一段目圧縮部1aで圧縮された冷媒は甲凝縮部2aにおいて凝縮し、甲凝縮部2aを出た後は、二段目圧縮部1bにおいて再度圧縮されて、乙凝縮部2bに供給され凝縮する(周囲に温熱を放出する)。一方、低圧低温冷媒は甲蒸発部6aおよび乙蒸発部6bには流入しないで、丙蒸発器7に流入して蒸発する(周囲の熱を吸収する)。したがって、すなわち、商品室402Aおよび商品室402Bが加熱され、商品室402Cが冷却されることになる(HHCモード)。
さらに、高圧冷媒系では、開閉弁12vおよびバイパス開閉弁22bvを開き、開閉弁19vおよび開閉弁12bvを閉じ、開閉弁23vおよび開閉弁29vを閉じ、一方、低圧低温冷媒系では、開閉弁46av、46bvまたは開閉弁47vを開いた場合、何れかの商品室が加熱されることになる(図示しない、CCCモード、CCモード、Cモード)。
Therefore, in the high-pressure refrigerant system, the on-off valves 12av and 12bv are opened and the on-off valve 19v and the bypass on-off valve 11v are closed, whereas in the low-pressure low-temperature refrigerant system, the on-off valves 46av and 46bv are closed and the on-off valve 47v is opened. In the high pressure and low temperature system, the refrigerant compressed in the first stage compression section 1a is condensed in the first stage condensation section 2a, and after exiting the first stage condensation section 2a, it is compressed again in the second stage compression section 1b, and the second condensation section 2b. To condense (releases heat to the surroundings). On the other hand, the low-pressure low-temperature refrigerant does not flow into the former evaporation unit 6a and the second evaporation unit 6b, but flows into the soot evaporator 7 and evaporates (absorbs ambient heat). Therefore, the product room 402A and the product room 402B are heated, and the product room 402C is cooled (HHC mode).
Further, in the high-pressure refrigerant system, the on-off valve 12v and the bypass on-off valve 22bv are opened, the on-off valve 19v and the on-off valve 12bv are closed, and the on-off valve 23v and the on-off valve 29v are closed. When the 46bv or the on-off valve 47v is opened, one of the product rooms is heated (CCC mode, CC mode, C mode, not shown).

[その他の実施の形態]
本発明は、自動販売機1000が有する商品室を3室に限定するものではなく、また、庫内熱交換器440が設置される商品室が2室に限定されるものではない。したがって、例えば、商品室を2室だけ具備する自動販売機において、一方または両方の商品室に庫内熱交換器440を設置してもよい。また、商品室を4室具備する自動販売機において、何れかの商品室に庫内熱交換器440を設置してもよい。さらに、商品室の外に、庫外蒸発器を設置してもよい。そして、これらの場合、それぞれに適宜、高圧高温冷媒または低圧低温冷媒が流入するように配管系を設けることになる(何れも図示しない)。
[Other embodiments]
The present invention does not limit the commodity rooms of the vending machine 1000 to three rooms, and the commodity rooms in which the internal heat exchanger 440 is installed are not limited to two rooms. Therefore, for example, in a vending machine having only two product rooms, the internal heat exchanger 440 may be installed in one or both of the product rooms. Further, in the vending machine having four product rooms, the internal heat exchanger 440 may be installed in any product room. Furthermore, you may install an outside-compartment evaporator outside a merchandise room. In these cases, a piping system is provided so that a high-pressure / high-temperature refrigerant or a low-pressure / low-temperature refrigerant flows into each of them (not shown).

本発明によれば、冷却加熱ユニットを構成する庫内熱交換器が、フィンプレートを共通にする蒸発部と凝縮部とを具備すると共に、冷媒流入流出管を一方側に集約するから、簡素な構成であって、フィンプレートの面積を拡大することなく所望の熱交換を可能にするから、家庭用および業務用の自動販売機として広く利用することができる。   According to the present invention, the internal heat exchanger constituting the cooling and heating unit includes the evaporation unit and the condensing unit that share the fin plate, and the refrigerant inflow and outflow pipes are concentrated on one side. Since it is a structure and desired heat exchange is possible without enlarging the area of a fin plate, it can be widely used as a vending machine for home use and business use.

本発明の実施の形態に係る自動販売機を説明する正面視の断面図。Sectional drawing of the front view explaining the vending machine which concerns on embodiment of this invention. 本発明の実施の形態に係る自動販売機を説明する側面視の断面図。The sectional view of the side view explaining the vending machine concerning an embodiment of the invention. 図1に示す自動販売機に設置された冷却加熱ユニットを説明する構成図。The block diagram explaining the cooling heating unit installed in the vending machine shown in FIG. 図3において説明された冷却加熱ユニットを形成する庫内熱交換器(その1)を模式的に説明する側面図および平面図。The side view and top view which explain typically the internal heat exchanger (the 1) which forms the cooling heating unit demonstrated in FIG. 図3において説明された冷却加熱ユニットを形成する庫内熱交換器(その2)を模式的に説明する側面図および平面図。The side view and top view which explain typically the internal heat exchanger (the 2) which forms the cooling heating unit demonstrated in FIG. 図3において説明された冷却加熱ユニットを形成する庫内熱交換器(その3)を模式的に説明する側面図および平面図。The side view and top view which explain typically the internal heat exchanger (the 3) which forms the cooling heating unit demonstrated in FIG. 図3において説明された冷却加熱ユニットを形成する庫内熱交換器(その4)を模式的に説明する側面図および平面図。The side view and top view which explain typically the internal heat exchanger (the 4) which forms the cooling heating unit demonstrated in FIG. 本発明の実施の形態に係る自動販売機における冷却加熱ユニット(その2)を説明する構成図。The block diagram explaining the cooling heating unit (the 2) in the vending machine which concerns on embodiment of this invention. 本発明の実施の形態に係る自動販売機における冷却加熱ユニット(その3)を説明する構成図。The block diagram explaining the cooling heating unit (the 3) in the vending machine which concerns on embodiment of this invention.

符号の説明Explanation of symbols

1 圧縮機
2 凝縮部
2a 甲凝縮部
2b 乙凝縮部
3 熱交換器(ガスクーラ)
4 膨張手段
6 蒸発部
6a 甲蒸発部
6b 乙蒸発部
7 丙蒸発器
8 内部熱交換器
8a 温熱配管
8b 冷熱配管
9 蒸発パイプ
100 自動販売機(自販機)
200 キャビネット
300 断熱材
401 商品収納庫
402 商品室
402A 商品室
402B 商品室
402C 商品室
403AB 仕切り板
403BC 仕切り板
404 商品補充用扉
405 内扉
406 前扉
407 商品収納ラック
408 商品誘導板
409 商品取出し口
410 庫内部品収納室
420 循環ダクト
430 送風手段
440 庫内熱交換器
440a 甲庫内熱交換器
440b 乙庫内熱交換器
441 フィンプレート
441a 第1側板
441b 第2側板
442 凝縮伝熱管
442s 凝縮伝熱直管部
442r 凝縮伝熱曲管部
443 貫通孔
446 蒸発伝熱管
446s 蒸発伝熱直管部
446r 蒸発伝熱曲管部
450 送風ダクト
460 風洞
470 コンデンシングユニット
480 機械室
481 庫外ファン
490 電装品収納室
500 庫内温度センサー
540 庫内熱交換器
1000 冷却加熱ユニット
2000 冷却加熱ユニット
3000 冷却加熱ユニット
DESCRIPTION OF SYMBOLS 1 Compressor 2 Condensing part 2a A former condensing part 2b B condensing part 3 Heat exchanger (gas cooler)
4 Expansion means 6 Evaporating section 6a Upper evaporating section 6b B evaporating section 7 丙 Evaporator 8 Internal heat exchanger 8a Thermal piping 8b Cooling piping 9 Evaporating pipe 100 Vending machine (vending machine)
200 Cabinet 300 Thermal Insulation 401 Commodity Storage 402 Commodity Room 402A Commodity Room 402B Commodity Room 402C Commodity Room 403AB Partition Plate 403BC Partition Plate 404 Commodity Replenishing Door 405 Inner Door 406 Front Door 407 Commodity Storage Rack 408 Commodity Guidance Plate 409 Commodity Extraction Port 410 Internal component storage chamber 420 Circulating duct 430 Air blowing means 440 Internal heat exchanger 440a Upper internal heat exchanger 440b Upper internal heat exchanger 441 Fin plate 441a First side plate 441b Second side plate 442 Condensation heat transfer tube 442s Condensation transfer Heat straight pipe part 442r Condensation heat transfer curved pipe part 443 Through hole 446 Evaporation heat transfer pipe 446s Evaporation heat transfer straight pipe part 446r Evaporation heat transfer curved pipe part 450 Blower duct 460 Wind tunnel 470 Condensing unit 480 Machine room 481 Outside fan 490 Electric equipment Goods Paid chamber 500 in-compartment temperature sensor 540-compartment heat exchanger 1000 cooling heating unit 2000 cooling heating unit 3000 cooling and heating units

Claims (3)

筐体と、
該筐体内に配置された仕切り板によって仕切られた複数の商品室と、
該複数の商品室のうちの一方の商品室に配置された庫内熱交換器と、
該複数の商品室のうちの他方の商品室に配置された庫内蒸発器と、
冷媒を圧縮する圧縮機と、
前記複数の商品室の外に配置された庫外凝縮器と、
冷媒を膨張させる膨張手段と、
前記庫内熱交換器に、前記圧縮機において圧縮された高圧高温冷媒または前記膨張手段において膨張された低圧低温冷媒の一方を供給開始若しくは供給停止すると共に、前記庫内蒸発器に、前記膨張手段において膨張された低圧低温冷媒を供給開始若しくは供給停止する冷媒分配手段と、
を有する自動販売機であって、
前記庫内熱交換器が、互いに平行に設置された複数のフィンプレートと、該複数のフィンプレートを貫通する前記高圧高温冷媒が流れる凝縮伝熱管と、該複数のフィンプレートを貫通する前記低圧低温冷媒が流れる蒸発伝熱管と、から形成され、
前記凝縮伝熱管が、前記複数のフィンプレートのうち最も外側に配置されたフィンプレートの外側において折り返すと共に、前記複数のフィンプレートのうちの最も外側に配置されたフィンプレートの一方の外側において、前記高圧高温冷媒を流入させる高圧高温冷媒流入配管および前記高圧高温冷媒を流出させる高圧高温冷媒流出配管に接続され、
前記蒸発伝熱管が、前記複数のフィンプレートのうち最も外側に配置されたフィンプレートの外側において折り返すと共に、前記複数のフィンプレートのうち最も外側に配置されたフィンプレートの一方の外側において、前記低圧低温冷媒を流入させる低圧低温冷媒流入配管および前記低圧低温冷媒を流出させる低圧低温冷媒流出配管に接続されていることを特徴とする自動販売機。
A housing,
A plurality of product rooms partitioned by a partition plate disposed in the housing;
An internal heat exchanger disposed in one of the plurality of product rooms;
An internal evaporator disposed in the other product room of the plurality of product rooms;
A compressor for compressing the refrigerant;
An external condenser disposed outside the plurality of product rooms;
Expansion means for expanding the refrigerant;
Supply of one of the high-pressure and high-temperature refrigerant compressed in the compressor or the low-pressure and low-temperature refrigerant expanded in the expansion means to the internal heat exchanger is stopped or stopped, and the expansion means is connected to the expansion means. Refrigerant distribution means for starting or stopping the supply of the low-pressure low-temperature refrigerant expanded in
Vending machine having
The internal heat exchanger includes a plurality of fin plates installed in parallel to each other, a condensation heat transfer tube through which the high-pressure and high-temperature refrigerant passes through the plurality of fin plates, and the low-pressure and low-temperature through the plurality of fin plates. An evaporation heat transfer tube through which the refrigerant flows, and
The condensation heat transfer tube is folded on the outer side of the fin plate disposed on the outermost side among the plurality of fin plates, and on one outer side of the fin plate disposed on the outermost side of the plurality of fin plates, Connected to a high-pressure and high-temperature refrigerant inflow piping for flowing in the high-pressure and high-temperature refrigerant and a high-pressure and high-temperature refrigerant outflow piping for flowing out the high-pressure and high-temperature refrigerant,
The evaporative heat transfer tube is folded on the outer side of the fin plate disposed on the outermost side among the plurality of fin plates, and on the outer side of one of the fin plates disposed on the outermost side of the plurality of fin plates, the low pressure A vending machine, wherein the vending machine is connected to a low-pressure and low-temperature refrigerant inflow pipe through which low-temperature refrigerant flows in and a low-pressure and low-temperature refrigerant outflow pipe through which the low-pressure and low-temperature refrigerant flows out.
前記複数の商品室のうちの一方の商品室に配置された庫内熱交換器に対し、略水平方向に流れる空気流れが形成され、
前記複数のフィンプレートが、前記空気流れに平行するように配置され、
前記凝縮伝熱管が、前記高圧高温冷媒を蛇行させながら前記空気流れの下流側において下側から上側に流した後、前記空気流れのより上流側において上側から下側に流すように配置され、
前記蒸発伝熱管が、前記低圧低温冷媒を蛇行させながら前記凝縮伝熱管の上流側において上側から下側に流すように配置されていることを特徴とする請求項1記載の自動販売機。
For the internal heat exchanger arranged in one of the plurality of product rooms, an air flow flowing in a substantially horizontal direction is formed,
The plurality of fin plates are arranged to be parallel to the air flow;
The condensation heat transfer tube is arranged to flow from the lower side to the upper side on the downstream side of the air flow while meandering the high-pressure and high-temperature refrigerant, and then to flow from the upper side to the lower side on the upstream side of the air flow,
The vending machine according to claim 1, wherein the evaporative heat transfer tube is arranged to flow from the upper side to the lower side upstream of the condensation heat transfer tube while meandering the low-pressure low-temperature refrigerant.
前記複数の商品室のうちの一方の商品室に配置された庫内熱交換器に対し、略水平方向に流れる空気流れが形成され、
前記複数のフィンプレートが、前記空気流れに平行するように配置され、
前記凝縮伝熱管が、前記高圧高温冷媒を蛇行させながら前記空気流れの下流側において下側から上側に流した後、前記空気流れのより上流側において上側から下側に流すように配置され、
前記蒸発伝熱管が、前記低圧低温冷媒を蛇行させながら前記凝縮伝熱管に対し前記空気流れの上流側において上側から下側に流した後、前記空気流れの下流方向に流すように配置されていることを特徴とする請求項1記載の自動販売機。
For the internal heat exchanger arranged in one of the plurality of product rooms, an air flow flowing in a substantially horizontal direction is formed,
The plurality of fin plates are arranged to be parallel to the air flow;
The condensation heat transfer tube is arranged to flow from the lower side to the upper side on the downstream side of the air flow while meandering the high-pressure and high-temperature refrigerant, and then to flow from the upper side to the lower side on the upstream side of the air flow,
The evaporative heat transfer tube is arranged to flow in the downstream direction of the air flow after flowing from the upper side to the lower side on the upstream side of the air flow with respect to the condensation heat transfer tube while meandering the low-pressure low-temperature refrigerant. The vending machine according to claim 1.
JP2007317048A 2007-12-07 2007-12-07 vending machine Active JP5071083B2 (en)

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JP5458588B2 (en) * 2009-02-04 2014-04-02 富士電機株式会社 vending machine
JP5560920B2 (en) * 2010-06-07 2014-07-30 パナソニック株式会社 vending machine

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JP3641860B2 (en) * 1995-11-28 2005-04-27 富士電機リテイルシステムズ株式会社 Vending machine cooling unit
JP3900777B2 (en) * 2000-02-15 2007-04-04 富士電機リテイルシステムズ株式会社 Vending machine cooling system
JP2006011493A (en) * 2004-06-22 2006-01-12 Sanden Corp Vending machine
JP4033234B2 (en) * 2005-10-26 2008-01-16 松下電器産業株式会社 vending machine
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