JP6241607B2 - vending machine - Google Patents
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- JP6241607B2 JP6241607B2 JP2013272292A JP2013272292A JP6241607B2 JP 6241607 B2 JP6241607 B2 JP 6241607B2 JP 2013272292 A JP2013272292 A JP 2013272292A JP 2013272292 A JP2013272292 A JP 2013272292A JP 6241607 B2 JP6241607 B2 JP 6241607B2
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- compressor
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- lower partition
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- 238000001816 cooling Methods 0.000 claims description 265
- 238000005192 partition Methods 0.000 claims description 69
- 239000003507 refrigerant Substances 0.000 claims description 66
- 239000006096 absorbing agent Substances 0.000 claims description 51
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 19
- 238000012986 modification Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 7
- 230000005855 radiation Effects 0.000 description 5
- 238000010792 warming Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
本発明は、本体内に仕切板で仕切られた機械室と商品収納部とを有し、商品収納部に商品を加温可能な加温室を備えた自動販売機に関する。 The present invention relates to a vending machine having a machine room partitioned by a partition plate in a main body and a product storage unit, and provided with a warming room capable of heating products in the product storage unit.
従来、この種の自動販売機としては、本体内の上部に商品収納部が設けられ、本体内の下部に冷却ユニットを構成する圧縮機や放熱器等が配置された機械室が設けられ、商品収納部内に、左右仕切板により仕切られて、商品を冷却可能な冷却室と商品を加温可能な加温室を設けたものがある。そして、冷却室には冷却ユニットの吸熱器（蒸発器）を配置して室内を冷却して商品を冷却し、加温室には電気ヒータを配置して室内を加温して商品を加温する（例えば、特許文献１参照）。 Conventionally, as this type of vending machine, a product storage section is provided in the upper part in the main body, and a machine room in which a compressor, a radiator, etc. constituting a cooling unit are arranged in the lower part in the main body is provided. Some storage units are partitioned by left and right partition plates to provide a cooling chamber capable of cooling the product and a warming room capable of heating the product. A cooling unit heat sink (evaporator) is disposed in the cooling chamber to cool the product by cooling the room, and an electric heater is disposed in the heating chamber to heat the product by heating the room. (For example, refer to Patent Document 1).
ところで、近年、環境保護が叫ばれる中、自動販売機業界においても省エネルギ化の要求が高まっている。このため、特許文献１に記載されているように、商品の加温に大きな消費電力量が必要になる電気ヒータを使用する自動販売機においては、省エネ化を図る上で、商品の加温、保温に必要な消費電力量を削減することが有効になる。 By the way, in recent years, the demand for energy saving has been increasing in the vending machine industry while the environmental protection has been called out. For this reason, as described in Patent Document 1, in a vending machine using an electric heater that requires a large amount of power consumption for heating a product, in order to save energy, It is effective to reduce the amount of power consumption required for heat insulation.
本発明は上記問題点に着目してなされたもので、商品の加温に冷却ユニットの圧縮機の排熱を利用することにより、消費電力量を削減可能な自動販売機を提供することを目的とする。 The present invention has been made paying attention to the above-mentioned problems, and an object thereof is to provide a vending machine capable of reducing power consumption by using exhaust heat of a compressor of a cooling unit for heating a product. And
このため、本発明は、本体内が上下仕切板で上下に仕切られ、前記上下仕切板の上側に商品収納部を設け、前記上下仕切板の下側に冷却ユニットを配置する機械室を設け、前記商品収納部が、商品を加温可能な収納室を備えた自動販売機において、前記加温可能な収納室の下部に位置する前記上下仕切板の上側に、前記冷却ユニットの圧縮機を配置したことを特徴とする。 For this reason, the present invention has a machine room in which the inside of the main body is partitioned vertically by an upper and lower partition plate, a product storage section is provided above the upper and lower partition plate, and a cooling unit is disposed below the upper and lower partition plate, In the vending machine provided with a storage chamber in which the product storage section can heat the product, the compressor of the cooling unit is disposed above the upper and lower partition plates located in the lower portion of the storage chamber capable of heating. It is characterized by that.
本発明の自動販売機によれば、商品を加温可能な収納室の下部に位置する上下仕切板の上側に、冷却ユニットの圧縮機を配置して圧縮機の発熱による排熱を商品の加温に利用するようにしたので、商品の加温のための消費電力量を削減でき、自動販売機の省エネルギ化を図ることができる。 According to the vending machine of the present invention, the compressor of the cooling unit is arranged on the upper side of the upper and lower partition plates located in the lower part of the storage room where the product can be heated, and the exhaust heat due to the heat generated by the compressor is added to the product. Since it is used for temperature, it is possible to reduce the amount of power consumed for heating the product and to save energy in the vending machine.
以下、本発明の実施形態を図面に基づいて説明する。
図１は本実施形態の自動販売機の正面図を示し、図２は外扉を開いた状態の斜視図を示し、図３は扉を除いた本体内部の簡略正面図を示す。
自動販売機１は、例えば鋼板製の外面材の内側を断熱材で覆って形成される前面開口の断熱箱体を構成する本体２の前面の一側に、外扉３が開閉可能に取り付けられている。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a front view of the vending machine of the present embodiment, FIG. 2 shows a perspective view with the outer door opened, and FIG. 3 shows a simplified front view inside the main body excluding the door.
In the vending machine 1, an outer door 3 is attached to one side of the front surface of a main body 2 that constitutes a heat insulating box with a front opening formed by covering an inner surface of a steel outer surface material with a heat insulating material, for example. ing.
前記外扉３には、図１に示すように、前面上部に商品サンプル室４が設けられており、商品サンプル室４内に陳列される複数の各商品サンプルに対応して複数の商品選択スイッチ５が配置されている。商品サンプル室４の下側には、広告パネル６が設けられ、広告パネル６の下側には商品取出口７が設けられている。また、広告パネル６の横には化粧パネル８が取り付けられており、この化粧パネル８内には、硬貨投入口９、返却レバー１０が設けられている。更に、化粧パネル８の横には、金額表示器１１や紙幣識別装置１２が設けられている。また、商品取出口７の横には硬貨返却口１３が設けられている。 As shown in FIG. 1, the outer door 3 is provided with a product sample chamber 4 in the upper front portion, and a plurality of product selection switches corresponding to a plurality of product samples displayed in the product sample chamber 4. 5 is arranged. An advertisement panel 6 is provided below the product sample chamber 4, and a product take-out port 7 is provided below the advertisement panel 6. A decorative panel 8 is attached to the side of the advertising panel 6, and a coin insertion slot 9 and a return lever 10 are provided in the decorative panel 8. Further, a money amount display 11 and a bill recognition device 12 are provided beside the decorative panel 8. In addition, a coin return port 13 is provided beside the product outlet 7.
外扉３を開いた本体２内の上部には、図２に示すように、前面が開口した商品収納部１４が設けられている。商品収納部１４は、断熱性の左右仕切板１５によって加温と冷却の切換えが可能な２つの冷温切換室１６，１７と１つの冷却専用室１８の３室に仕切られている。冷温切換室１６，１７及び冷却専用室１８には、販売する商品が蛇行状の商品通路に収納されるサーペンタイン式の商品収納コラム１９が前後方向及び左右方向にそれぞれ設けられている。 As shown in FIG. 2, a product storage portion 14 whose front surface is open is provided at an upper portion in the main body 2 where the outer door 3 is opened. The product storage unit 14 is partitioned into three chambers of two cool / warm switching chambers 16 and 17 and one cooler dedicated chamber 18 that can be switched between heating and cooling by a heat insulating left and right partition plate 15. Serpentine-type product storage columns 19 in which products to be sold are stored in meandering product passages are provided in the cold / temperature switching chambers 16 and 17 and the cooling dedicated chamber 18 in the front-rear direction and the left-right direction, respectively.
商品収納部１４の前面には、それぞれ断熱性を有し、商品収納部１４の前面開口の上部側を開閉するための上部側内扉２０と、商品収納部１４の前面開口の下部側を開閉するための下部側内扉２１が配置されている。 The front surface of the product storage unit 14 has heat insulation, and the upper inner door 20 for opening and closing the upper side of the front opening of the product storage unit 14 and the lower side of the front opening of the product storage unit 14 are opened and closed. A lower-side inner door 21 is arranged for this purpose.
上部側内扉２０は、外扉３の商品サンプル室４の後側に当該外扉３に取り付けられており、外扉３を開閉することにより上部側内扉２０も一体的に開閉して商品収納部１４の前面開口の上部側が開閉される構成である。更に、上部側内扉２０は外扉３を開放した状態で、当該外扉３から独立して後方に開閉可能であり、上部側内扉２０を外扉３から後方に開いた状態で、商品サンプル室４内に陳列される商品サンプルを交換できるように構成されている。 The upper side inner door 20 is attached to the outer door 3 on the rear side of the product sample chamber 4 of the outer door 3, and the upper side inner door 20 is also opened and closed integrally by opening and closing the outer door 3. The upper side of the front opening of the storage unit 14 is opened and closed. Further, the upper inner door 20 can be opened and closed rearward independently of the outer door 3 with the outer door 3 open, and the upper inner door 20 can be opened rearward from the outer door 3 The product sample displayed in the sample chamber 4 can be exchanged.
下部側内扉２１は、本体２に開閉可能に取り付けられている。下部側内扉２１の下部には、商品収納部１４の各冷温切換室１６，１７及び冷却専用室１８内の商品を商品取出口７へ搬出するための商品搬出口２２が並設されている。各商品搬出口２２の上縁部には搬出扉２３が回動可能に取り付けられている。 The lower side inner door 21 is attached to the main body 2 so as to be openable and closable. In the lower part of the lower-side inner door 21, product outlets 22 for carrying out the products in the respective cold temperature switching chambers 16, 17 of the product storage unit 14 and the cooling exclusive chamber 18 to the product outlet 7 are arranged in parallel. . A carry-out door 23 is rotatably attached to the upper edge of each product carry-out port 22.
本体２内の下部には、後述の第１及び第２冷却ユニット３０，５０の構成部品が配置される機械室２４が設けられている。この機械室２４は、図３及び図４に示すように、冷却専用室１８と隣接する冷温切換室１７の下部に位置してこれら両室１７，１８の底面を構成する第１上下仕切板２５Ａと冷温切換室１６の下部に位置して当該冷温切換室１６の底面を構成する第２上下仕切板２５Ｂとに分割構成された上下仕切板２５によって本体２内の上側の商品収納部１４と仕切られている。即ち、本体２内は上下仕切板２５で上下に仕切られ、上下仕切板２５の上側に商品収納部１４が設けられ、上下仕切板２５の下側に機械室２４が設けられている。ここで、一方の冷温切換室１６が本発明の加温可能な収納室に相当するものである。図２中、符号２６，２７は、本体２の両側部の強度を確保するための例えば鋼材等からなる補強部材である。尚、本実施形態では、第１上下仕切板２５Ａと第２上下仕切板２５Ｂを分割構成したが、１枚の上下仕切板を段付き状に折り曲げて第１上下仕切板２５Ａと第２上下仕切板２５Ｂを構成してもよい。 A machine room 24 in which components of first and second cooling units 30 and 50 to be described later are arranged is provided at the lower part in the main body 2. As shown in FIGS. 3 and 4, the machine room 24 is located at the lower part of the cooling / cooling switching room 17 adjacent to the cooling-only room 18 and constitutes the first upper and lower partition plates 25 </ b> A constituting the bottom surfaces of both the rooms 17, 18. And the upper and lower partition plates 25 which are located at the lower part of the cool / warm switching chamber 16 and are divided into the second upper and lower partition plates 25B constituting the bottom surface of the cool / warm switching chamber 16. It has been. That is, the inside of the main body 2 is partitioned vertically by the upper and lower partition plates 25, the product storage unit 14 is provided above the upper and lower partition plates 25, and the machine room 24 is provided below the upper and lower partition plates 25. Here, one of the cold / warm switching chambers 16 corresponds to the warming storage chamber of the present invention. In FIG. 2, reference numerals 26 and 27 are reinforcing members made of, for example, a steel material for ensuring the strength of both side portions of the main body 2. In the present embodiment, the first upper and lower partition plates 25A and the second upper and lower partition plates 25B are divided. However, the first upper and lower partition plates 25A and the second upper and lower partition plates are bent by folding one upper and lower partition plate into a stepped shape. The plate 25B may be configured.
前記第１上下仕切板２５Ａは、冷却専用室１８と隣接する冷温切換室１７に跨って設けられ、その前縁部を下部側内扉２１の下端部に対応させた高さ位置に配置され、下部側内扉２１を閉じることで、冷却専用室１８及び冷温切換室１７の前面開口の下側が閉じられるように構成されている。また、第２上下仕切板２５Ｂは、図３及び図４に示すように、第１上下仕切板２５Ａよりも低い位置に配置されており、第１上下仕切板２５Ａと第２上下仕切板２５Ｂとの間には段差部が形成され、下部側内扉２１を閉じたときに下部側内扉２１下端部と第２上下仕切板２５Ｂ前縁部との間の冷温切換室１６前面に開口部ができる。このため、この冷温切換室１６の前面開口部に、図２に示すように断熱性を有する閉塞板２８を、後述するようにして取り外し可能に取り付けて、冷温切換室１６の前面開口部を閉塞している。 The first upper and lower partition plates 25A are provided across the cooling / temperature switching chamber 17 adjacent to the cooling exclusive chamber 18, and are arranged at a height position in which the front edge portion thereof corresponds to the lower end portion of the lower side inner door 21, By closing the lower side inner door 21, the lower side of the front opening of the cooling only chamber 18 and the cooling / temperature switching chamber 17 is closed. Further, as shown in FIGS. 3 and 4, the second upper and lower partition plates 25B are disposed at a position lower than the first upper and lower partition plates 25A, and the first upper and lower partition plates 25A and the second upper and lower partition plates 25B and A stepped portion is formed between the two, and when the lower inner door 21 is closed, an opening is formed on the front surface of the cold / warm switching chamber 16 between the lower end of the lower inner door 21 and the front edge of the second upper and lower partition plate 25B. it can. For this reason, a closing plate 28 having heat insulation as shown in FIG. 2 is removably attached to the front opening of the cold / warm switching chamber 16 as will be described later, thereby closing the front opening of the cold / hot switching chamber 16. doing.
本実施形態の冷却ユニットは、少なくとも冷却専用室１８を冷却する第１冷却ユニット３０と、この第１冷却ユニット３０と独立して構成されて加温可能な収納室としての冷温切換室１６を加温可能な第２冷却ユニット５０とを設けている。そして、機械室２４の略中央部に第１冷却ユニット３０の圧縮機３１を配置し、冷温切換室１６の下部に位置する第２上下仕切板２５Ｂ上に第２冷却ユニット５０の圧縮機５１を配置している。 The cooling unit of the present embodiment includes at least a first cooling unit 30 that cools the cooling dedicated chamber 18 and a cooling / temperature switching chamber 16 that is configured independently of the first cooling unit 30 and can be heated. A second cooling unit 50 capable of heating is provided. And the compressor 31 of the 1st cooling unit 30 is arrange | positioned in the approximate center part of the machine room 24, and the compressor 51 of the 2nd cooling unit 50 is arrange | positioned on the 2nd upper and lower partition plate 25B located in the lower part of the cold / warm switching chamber 16. It is arranged.
また、冷温切換室１６には、図３及び図４に示すように、圧縮機５１の他に第１冷却ユニット３０の吸熱器３２と第２冷却ユニット５０の放熱器５２が配置され、冷温切換室１７と冷却専用室１８には、第１冷却ユニット３０の吸熱器３３，３４がそれぞれ配置されている。冷温切換室１６には、図５に示すように、第２冷却ユニット５０による加温する際に熱量の不足を補うための電気ヒータ４１が設けられ、冷温切換室１７には、当該冷温切換室１７を加温するための電気ヒータ４２が設けられている。これにより、第１冷却ユニット３０によって冷温切換室１６，１７及び冷却専用室１８が冷却可能に構成され、第２冷却ユニット５０と電気ヒータ４１，４２によって冷温切換室１６、１７が加温可能に構成される。更に、冷温切換室１６，１７及び冷却専用室１８には、吸熱器３２，３３，５５の前方側にぞれぞれ送風機４４，４５，４６が設けられている。 In addition, as shown in FIGS. 3 and 4, in addition to the compressor 51, a heat absorber 32 of the first cooling unit 30 and a radiator 52 of the second cooling unit 50 are arranged in the cold / temperature switching chamber 16. In the chamber 17 and the cooling dedicated chamber 18, heat absorbers 33 and 34 of the first cooling unit 30 are arranged, respectively. As shown in FIG. 5, the cold / warm switching chamber 16 is provided with an electric heater 41 for making up for a shortage of heat when the second cooling unit 50 warms up. An electric heater 42 for heating 17 is provided. Accordingly, the cooling / cooling switching chambers 16 and 17 and the cooling dedicated chamber 18 can be cooled by the first cooling unit 30, and the cooling / cooling switching chambers 16 and 17 can be heated by the second cooling unit 50 and the electric heaters 41 and 42. Composed. Furthermore, the cooler temperature switching chambers 16, 17 and the cooling dedicated chamber 18 are provided with blowers 44, 45, 46 on the front side of the heat absorbers 32, 33, 55, respectively.
ここで、冷却ユニット３０，５０の冷媒回路構成について図５を参照して説明する。
第１冷却ユニット３０は、機械室２４に配置した圧縮機３１の吐出側に放熱器３５の吸込側が接続され、放熱器３５の吐出側が内部熱交換器３６と分岐した各分岐路に介装される電磁弁３７Ａとキャピラリチューブ３８Ａ、電磁弁３７Ｂとキャピラリチューブ３８Ｂ、電磁弁３７Ｃとキャピラリチューブ３８Ｃとを介して各吸熱器３２，３３，３４の各吸込側に接続される。更に、各吸熱器３２，３３からの冷媒が合流する吸熱器３４の吐出側が内部熱交換器３６を介して圧縮機３１の吸込側に接続されて構成されている。また、第２冷却ユニット５０は、冷温切換室１６に配置される圧縮機５１の吐出側に放熱器５２の吸込側が接続され、放熱器５２の吐出側がキャピラリチューブ５３を介して吸熱器５４の吸込側に接続され、吸熱器５４の吐出側が圧縮機５１の吸込側に接続されて構成されている。そして、これら第１冷却ユニット３０の放熱器３５、内部熱交換器３６、電磁弁３７Ａ，３７Ｂ，３７Ｃ及びキャピラリチューブ３８Ａ，３８Ｂ，３８Ｃと第２冷却ユニット５０のキャピラリチューブ５３及び吸熱器５４は、機械室２４内に配置されている。
Here, the refrigerant circuit configuration of the cooling units 30 and 50 will be described with reference to FIG.
The first cooling unit 30 is connected to the discharge side of the compressor 31 disposed in the machine room 24 at the suction side of the radiator 35, and the discharge side of the radiator 35 is interposed in each branch path branched from the internal heat exchanger 36. The solenoid valve 37A and the capillary tube 38A, the solenoid valve 37B and the capillary tube 38B, and the solenoid valve 37C and the capillary tube 38C are connected to the suction sides of the heat absorbers 32, 33, and 34, respectively. Further, the discharge side of the heat absorber 34 where the refrigerant from each of the heat absorbers 32 and 33 merges is connected to the suction side of the compressor 31 via the internal heat exchanger 36. In the second cooling unit 50, the suction side of the radiator 52 is connected to the discharge side of the compressor 51 disposed in the cold / warm switching chamber 16, and the discharge side of the radiator 52 is sucked into the heat absorber 54 via the capillary tube 53. The discharge side of the heat absorber 54 is connected to the suction side of the compressor 51. The radiator 35, the internal heat exchanger 36, the electromagnetic valves 37A, 37B, and 37C and the capillary tubes 38A, 38B, and 38C of the first cooling unit 30 and the capillary tube 53 and the heat absorber 54 of the second cooling unit 50 are: It is arranged in the machine room 24.
機械室２４に配置された各冷却ユニット３０，５０の冷媒回路構成部品と冷温切換室１６，１７及び冷却専用室１８に配置された冷媒回路構成部品との間を接続する冷媒配管４４は、図４に太線で示すように、機械室２４と冷温切換室１７や冷却専用室１８との間は、従来と同様にして第１上下仕切板２５Ａの前縁部の切欠部を通して上下方向で配管し、機械室２４と冷温切換室１６との間は、冷温切換室１６側面と機械室２４とを仕切る側面仕切板２９を横切るように横方向に延ばして側面仕切板２９前縁部の切欠部を通して横方向で配管している。尚、機械室２４には、機械室２４内部を空冷するための送風機４３が設けられている。更に、図示しないが、冷温切換室１６，１７及び冷却専用室１８には、室内の温度を検出する温度センサが設けられ、これら温度センサの出力や各種設定情報等に基づいて制御装置（図示せず）によって冷却ユニット３０，５０を駆動制御する。これら両冷却ユニット３０，５０の制御装置や自動販売機１の種々の動作を制御する制御装置等の電子回路部は、例えば機械室２４の補強部材２６内側の空間部を利用して設置されている。 A refrigerant pipe 44 for connecting the refrigerant circuit components of the cooling units 30 and 50 arranged in the machine room 24 and the refrigerant circuit components arranged in the cooling / cooling switching chambers 16 and 17 and the cooling dedicated chamber 18 is shown in FIG. As shown by a thick line in FIG. 4, between the machine room 24 and the cooling / cooling switching chamber 17 or the cooling exclusive chamber 18, piping is made in the vertical direction through a notch in the front edge portion of the first upper and lower partition plate 25A as in the conventional case. The space between the machine room 24 and the cold / warm switching chamber 16 extends laterally so as to cross the side wall partition plate 29 that partitions the side surface of the cold / hot temperature switch room 16 and the machine room 24 and passes through a notch in the front edge of the side wall partition plate 29. Piping in the horizontal direction. The machine room 24 is provided with a blower 43 for air-cooling the inside of the machine room 24. Further, although not shown in the drawings, the temperature switching chambers 16 and 17 and the cooling dedicated chamber 18 are provided with temperature sensors for detecting the temperature in the room, and control devices (not shown) based on outputs of these temperature sensors, various setting information, and the like. The cooling units 30 and 50 are driven and controlled. Electronic circuit units such as the control devices for both the cooling units 30 and 50 and the control device for controlling various operations of the vending machine 1 are installed using, for example, the space inside the reinforcing member 26 of the machine room 24. Yes.
次に、冷温切換室１６に配置する冷却回路構成部品である第２冷却ユニット５０の圧縮機５１、放熱器５２及び第１冷却ユニット３０の吸熱器３２を載置したユニットの固定構造及び冷温切換室１６の前面開口部に取り付ける閉塞板２８の固定構造について図６〜図８を参照して説明する。
第２上下仕切板２５Ｂは、鋼板製の機械室天板６１上に、真空断熱材６２と、断熱性を有するウレタンボード６３を順次積層して構成される。そして、ウレタンボード６３上に固定する前述の圧縮機５１、放熱器５２及び吸熱器３２を載置したユニットの固定箇所に合わせてウレタンボード６３に複数の切り込みを設け、前記ユニットを固定するための固定金具６４両端の折曲部６４ａを、図７中矢印Ａで示すようにウレタンボード６３の下側から前記切り込みに差し込み、折曲部６４ａをウレタンボード６３上に突出させた後、図７中矢印Ｂのように折曲部６４ａを折り曲げてウレタンボード６３上面に密着させる。これら折り曲げた折曲部６４ａに、圧縮機５１、放熱器５２及び吸熱器３２を載置したユニットをネジ止めして冷却回路構成部品である第２冷却ユニット５０の圧縮機５１、放熱器５２及び第１冷却ユニット３０の吸熱器３２を載置したユニットを固定している。
Next, the fixing structure of the unit on which the compressor 51 of the second cooling unit 50, the radiator 52, and the heat absorber 32 of the first cooling unit 30 which are cooling circuit components arranged in the cooling / cooling switching chamber 16 are mounted, and the cooling / cooling switching. A fixing structure of the closing plate 28 attached to the front opening of the chamber 16 will be described with reference to FIGS.
The second upper and lower partition plates 25B are configured by sequentially stacking a vacuum heat insulating material 62 and a urethane board 63 having heat insulation properties on a machine room top plate 61 made of steel plate. Then, a plurality of cuts are provided in the urethane board 63 according to the fixing location of the unit on which the compressor 51, the radiator 52, and the heat absorber 32 are fixed on the urethane board 63, and the unit is fixed. As shown by the arrow A in FIG. 7, the bent portions 64a at both ends of the fixing metal 64 are inserted into the cut from the lower side of the urethane board 63, and the bent portion 64a is projected on the urethane board 63, and then in FIG. As shown by the arrow B, the bent portion 64a is bent and brought into close contact with the upper surface of the urethane board 63. A unit in which the compressor 51, the radiator 52, and the heat absorber 32 are screwed to the bent portion 64a and the compressor 51, the radiator 52, and the second cooling unit 50 are cooling circuit components. The unit on which the heat absorber 32 of the first cooling unit 30 is placed is fixed.
また、閉塞板２８の固定は、図７に示すように、ウレタンボード６３の前縁部近傍の所定箇所に、固定金具６４を前述と同様にして取り付け、この固定金具６４に、図７中矢印Ｃで示すように、Ｌ字状の閉塞板固定用の固定金具７１をネジ７２で固定する。この固定金具７１と機械室天板６１前縁部の立上げ部６１ａとの間に、図６中に矢印で示すように上から閉塞板２８を差し込み、図８に示すように、第１上下仕切板２５Ａ前縁部に沿って当該第１上下仕切板２５Ａと第２上下仕切板２５Ｂに跨って配置されたシール部材としてのガスケット７３の金具７３ａ部分で、閉塞板２８の上縁部を押さえ付けることにより、閉塞板２８を固定している。閉塞板２８は、断熱材２８ａの周囲にゴム製パッキン２８ｂを設けて構成されており、ガスケット７３の金具７３ａがゴム製パッキン２８ｂに密着する。前記ガスケット７３は、図６に示すように金具７３ａの前面側にゴム製パッキン７３ｂを係止させて構成されており、下部側内扉２１を閉じたときに、下部側内扉２１の下端部内側がゴム製パッキン７３ｂに密着して冷温切換室１６，１７及び冷却専用室１８の密閉性を確保している。 In addition, as shown in FIG. 7, the closing plate 28 is fixed to a predetermined location near the front edge of the urethane board 63 in the same manner as described above, and the fixing bracket 64 is attached to the fixing bracket 64 with an arrow in FIG. As shown by C, an L-shaped closing plate fixing fixture 71 is fixed with a screw 72. Between the fixing bracket 71 and the rising portion 61a of the front edge of the machine room top plate 61, the closing plate 28 is inserted from above as shown by an arrow in FIG. 6, and as shown in FIG. The upper edge portion of the closing plate 28 is pressed by the metal fitting 73a portion of the gasket 73 as a seal member disposed across the first upper and lower partition plates 25A and 25B along the front edge portion of the partition plate 25A. By attaching, the closing plate 28 is fixed. The closing plate 28 is configured by providing a rubber packing 28b around the heat insulating material 28a, and the metal fitting 73a of the gasket 73 is in close contact with the rubber packing 28b. As shown in FIG. 6, the gasket 73 is configured by engaging a rubber packing 73 b on the front surface side of the metal fitting 73 a, and when the lower inner door 21 is closed, the lower end portion of the lower inner door 21. The inner side is in close contact with the rubber packing 73b to ensure the hermeticity of the cooling / cooling switching chambers 16, 17 and the cooling dedicated chamber 18.
かかる構成の自動販売機１によれば、冷温切換室１６に第２冷却ユニット５０の圧縮機５１を配置したので、圧縮機５１の発熱による圧縮機５１からの排熱によって冷温切換室１６を加温できる。これにより、電気ヒータで加熱する従来機に比べて消費電力量を抑制することができ、自動販売機の省エネ化を図ることができる。また、第２冷却ユニット５０の放熱器５２を冷温切換室１６に配置したので、放熱器５２における冷媒の放熱で冷温切換室１６を加温できるので、より省エネ化を図ることができる。 According to the vending machine 1 having such a configuration, the compressor 51 of the second cooling unit 50 is disposed in the cooling / temperature switching chamber 16, so that the cooling / temperature switching chamber 16 is added by exhaust heat from the compressor 51 due to heat generated by the compressor 51. Can warm. Thereby, compared with the conventional machine heated with an electric heater, power consumption can be suppressed and energy saving of a vending machine can be achieved. Further, since the radiator 52 of the second cooling unit 50 is disposed in the cold / warm switching chamber 16, the cold / warm switching chamber 16 can be heated by the heat radiation of the refrigerant in the radiator 52, so that energy saving can be further achieved.
また、冷温切換室１６下部に配置する圧縮機５１、放熱器５２及び吸熱器３２が、商品収納コラム１９から落下した商品を商品搬出口２２へ搬送するデリバリシュート（図示せず）と干渉しないように、冷温切換室１６下部の上下仕切板２５Ｂの位置を、他の冷温切換室１７及び冷却専用室１８の下部の上下仕切板２５Ａより低い位置に配置した。これにより、冷温切換室１６の商品収容容積を従来機と同じにでき、従来と同様の商品収納容積を有する自動販売機１を提供できる。 Further, the compressor 51, the radiator 52, and the heat absorber 32 disposed at the lower part of the cold / warm switching chamber 16 do not interfere with a delivery chute (not shown) that conveys the product dropped from the product storage column 19 to the product delivery port 22. In addition, the position of the upper and lower partition plates 25 </ b> B below the cooling / temperature switching chamber 16 is arranged at a position lower than the upper and lower partition plates 25 </ b> A below the other cooling / temperature switching chamber 17 and the cooling dedicated chamber 18. Thereby, the merchandise accommodation volume of the cold / hot switching chamber 16 can be made the same as that of the conventional machine, and the vending machine 1 having the same merchandise accommodation capacity as that of the conventional machine can be provided.
また、冷温切換室１６下部の上下仕切板２５Ｂの位置を下げたことに伴って生じる冷温切換室１６の前面開口部を、断熱性の閉塞板２８を取り外し可能に固定して閉塞したので、冷温切換室１６の密閉性を確保できると共に、室内の圧縮機５１、放熱器５２及び吸熱器３２等の故障時やメンテナス時に閉塞板２８を容易に取り外すことができ、故障時やメンテナス時の作業が容易である。しかも、下部側内扉２１の形状を変更することなく従来機のものをそのまま使用でき、製造コストを抑えることができる。 In addition, since the front opening of the cold / warm switching chamber 16 generated by lowering the position of the upper and lower partition plates 25B below the cold / warm switching chamber 16 is closed by removably fixing the heat insulating closing plate 28, The airtightness of the switching chamber 16 can be secured, and the closing plate 28 can be easily removed at the time of failure or maintenance of the compressor 51, the radiator 52, the heat absorber 32, etc. in the room, and work at the time of failure or maintenance can be performed. Easy. And the thing of the conventional machine can be used as it is, without changing the shape of the lower side inner door 21, and manufacturing cost can be held down.
また、冷温切換室１６内の冷媒回路構成部品（第２冷却ユニット５０の圧縮機５１と放熱器５２及び第１冷却ユニット３０の吸熱器３２）と機械室２４側の冷媒回路構成部品（第２冷却ユニット５０の吸熱器５４とキャピラリチューブ５３及び第１冷却ユニット３０のキャピラリチューブ３８Ａ）とを接続する冷媒配管部分を、第１上下仕切板２５Ａと第２上下仕切板２５Ｂとの段差部を利用して横方向に配管したので、冷媒配管４４を簡素化でき、冷媒配管４４の取付け作業が容易にできる。 Further, refrigerant circuit components (the compressor 51 and the radiator 52 of the second cooling unit 50 and the heat absorber 32 of the first cooling unit 30) in the cold / warm switching chamber 16 and the refrigerant circuit components (second) of the machine chamber 24 side. The refrigerant piping portion connecting the heat absorber 54 of the cooling unit 50 and the capillary tube 53 and the capillary tube 38A of the first cooling unit 30 uses a step portion between the first upper and lower partition plates 25A and the second upper and lower partition plates 25B. Since the piping is performed in the horizontal direction, the refrigerant piping 44 can be simplified, and the refrigerant piping 44 can be easily attached.
また、冷温切換室１６に圧縮機５１を配置する冷却ユニット５０の他に、第１冷却ユニット３０を設け、その圧縮機３５を機械室２４の略中央部配置した。これにより、自動販売機１の重量バランスを確保でき、設置したときの安定性を確保できる。 In addition to the cooling unit 50 in which the compressor 51 is disposed in the cold / warm switching chamber 16, the first cooling unit 30 is provided, and the compressor 35 is disposed in the substantially central portion of the machine chamber 24. Thereby, the weight balance of the vending machine 1 can be secured, and the stability when installed can be secured.
尚、本実施形態では、加温可能な収納室（冷温切換室１６）の底面に冷却ユニット（第２冷却ユニット）の圧縮機を配置する構成としたが、加温可能な収納室における圧縮機の配置は、加温可能な収納室内であればよく必ずしも収納室の底面でなくともよい。
また、本実施形態では、加温可能な収納室（冷温切換室１６）の商品収容容積を従来機と同程度確保するために、加温可能な収納室の下部に位置する上下仕切板位置を他の室の下部に位置する上下仕切板位置よりも低くしたが、加温可能な収納室の商品収容容積を縮小して加温可能な収納室の下部の上下仕切板位置と他の室の下部の上下仕切板位置とを同じ高さとしてもよく、この場合、従来と同様に一枚の平板状の上下仕切板を用いることができ、閉塞板２８やその組み付け構造が省略でき、自動販売機の製造コストが低減される。
In the present embodiment, the compressor of the cooling unit (second cooling unit) is arranged on the bottom surface of the warming storage chamber (cold temperature switching chamber 16). The arrangement may be any storage room that can be heated, and not necessarily the bottom surface of the storage room.
Moreover, in this embodiment, in order to ensure the product accommodation volume of the storage room (cold temperature switching room 16) which can be heated to the same extent as the conventional machine, the upper and lower partition plate positions located at the lower part of the storage room which can be heated are set. Although lower than the upper and lower partition plate positions located in the lower part of the other chambers, the product storage volume of the storage room that can be heated is reduced, and the upper and lower partition plate positions in the lower part of the storage room that can be heated and the other room The lower upper and lower partition plates may have the same height. In this case, a single flat upper and lower partition plate can be used as in the conventional case, the closing plate 28 and its assembly structure can be omitted, and vending The manufacturing cost of the machine is reduced.
次に、本発明の自動販売機に適用する冷却ユニットについて説明する。
本実施形態の自動販売機１では、２つの冷却ユニット設けている。即ち、冷却ユニットとして冷温切換室１６，１７と冷却専用室１８を冷却する第１冷却ユニット３０と、冷温切換室１６を加温する第２冷却ユニット５０とを設け、第１冷却ユニット３０の各吸熱器３２，３３，３４を、冷温切換室１６，１７と冷却専用室１８にそれぞれ配置し、第２冷却ユニット５０の圧縮機５１と放熱器５２を冷温切換室１６に配置している。そして、冷温切換室１６における第１冷却ユニット３０の吸熱器３２と第２冷却ユニット５０の圧縮機５１及び放熱器５２の配置構成を、冷温切換室１６の前方側から後方側に向けて、第１冷却ユニット３０の吸熱器３２、第２冷却ユニット５０の圧縮機５１、放熱器５２の順で配置している。
Next, the cooling unit applied to the vending machine of the present invention will be described.
In the vending machine 1 of the present embodiment, two cooling units are provided. That is, as the cooling unit, a first cooling unit 30 for cooling the cooling / temperature switching chambers 16 and 17 and the cooling dedicated chamber 18 and a second cooling unit 50 for heating the cooling / temperature switching chamber 16 are provided. The heat absorbers 32, 33, and 34 are disposed in the cooling / temperature switching chambers 16 and 17 and the cooling dedicated chamber 18, respectively, and the compressor 51 and the radiator 52 of the second cooling unit 50 are disposed in the cooling / temperature switching chamber 16. Then, the arrangement configuration of the heat absorber 32 of the first cooling unit 30 and the compressor 51 and the radiator 52 of the second cooling unit 50 in the cold / temperature switching chamber 16 is changed from the front side to the rear side of the cold / temperature switching chamber 16. The heat absorber 32 of the first cooling unit 30, the compressor 51 of the second cooling unit 50, and the radiator 52 are arranged in this order.
この場合、第２冷却ユニット５０の冷媒として、例えばＲ１２３４ｙｆを使用し、圧縮機５１として冷媒を超臨界圧力未満で圧縮する圧縮機を用いる。尚、第２冷却ユニット５０の冷媒として、Ｒ１３４ａ、又はＲ１２３４ｚｅ等を用いてもよい。第１冷却ユニット３０の冷媒としては、本実施形態では、例えば二酸化炭素（ＣＯ2）とするが、特に限定はしない。 In this case, for example, R1234yf is used as the refrigerant of the second cooling unit 50, and a compressor that compresses the refrigerant below the supercritical pressure is used as the compressor 51. Note that R134a, R1234ze, or the like may be used as the refrigerant of the second cooling unit 50. In the present embodiment, the refrigerant of the first cooling unit 30 is, for example, carbon dioxide (CO 2 ), but is not particularly limited.
かかる構成によれば、冷温切換室１６，１７及び冷却専用室１８では、送風機４４，４５，４６によって、後側から前側、上方、後部ダクト（図示せず）の順で室内の空気が流れる。このため、冷温切換室１６内において、第１冷却ユニット３０と第２冷却ユニット５０が稼働状態にあるとき、例えば圧縮機５１の表面温度が７０℃、圧縮機５１の吐出側の冷媒配管温度が５５℃（放熱器５１の入口温度と出口温度も同じ（第２冷却ユニット５０の冷媒は等温変化））とした場合、圧縮機５１を冷却した後の空気温度は放熱器５２の温度より低く、放熱器５２からの放熱が可能となり、放熱器５１の効率を高めることができる。しかし、圧縮機５１と放熱器５２の配置を逆にした場合、即ち、冷温切換室１６の前方側から後方側に向けて、第１冷却ユニット３０の吸熱器３２、第２冷却ユニット５０の放熱器５２、圧縮機５１の順で配置した場合には、圧縮機５１を冷却した後の空気温度が放熱器５２の放熱温度より高く、放熱器５２が放熱し難くなってしまう。 According to such a configuration, in the cool / warm switching chambers 16 and 17 and the cooling exclusive chamber 18, indoor air flows from the rear side to the front side, the upper side, and the rear duct (not shown) by the blowers 44, 45 and 46. For this reason, when the 1st cooling unit 30 and the 2nd cooling unit 50 are in an operation state in the cold temperature switching chamber 16, for example, the surface temperature of the compressor 51 is 70 degreeC, and the refrigerant | coolant piping temperature of the discharge side of the compressor 51 is the temperature. When the temperature is 55 ° C. (the inlet temperature and the outlet temperature of the radiator 51 are also the same (the refrigerant of the second cooling unit 50 changes isothermally)), the air temperature after cooling the compressor 51 is lower than the temperature of the radiator 52, Heat dissipation from the radiator 52 is possible, and the efficiency of the radiator 51 can be increased. However, when the arrangement of the compressor 51 and the radiator 52 is reversed, that is, from the front side to the rear side of the cold / warm switching chamber 16, the heat sink 32 of the first cooling unit 30 and the heat radiation of the second cooling unit 50 are performed. When the compressor 52 and the compressor 51 are arranged in this order, the air temperature after cooling the compressor 51 is higher than the heat dissipation temperature of the radiator 52, and the radiator 52 becomes difficult to dissipate heat.
図９は、図５の冷却ユニットの配置構成における別の冷媒回路例を示す構成図である。尚、図５と同一要素には同一符号を付してある。
この冷媒回路では、第２冷却ユニット５０の放熱器５２の吐出側と吸熱器５４の吸込側との間に吸熱器５５を設け、吸熱器５５を冷却専用室１８に配置し、放熱器５２の吐出側を、キャピラリチューブ５６を介して吸熱器５５の吸込側に接続し、吸熱器５５の吐出側を吸熱器５４の吸込側に接続するよう構成されている。
FIG. 9 is a configuration diagram showing another refrigerant circuit example in the arrangement configuration of the cooling unit of FIG. 5. In addition, the same code | symbol is attached | subjected to the same element as FIG.
In this refrigerant circuit, a heat absorber 55 is provided between the discharge side of the heat radiator 52 of the second cooling unit 50 and the suction side of the heat absorber 54, and the heat absorber 55 is disposed in the cooling dedicated chamber 18. The discharge side is connected to the suction side of the heat absorber 55 via the capillary tube 56, and the discharge side of the heat absorber 55 is connected to the suction side of the heat absorber 54.
かかる構成では、第２冷却ユニット５０の稼働時に、第２冷却ユニット５０を冷却専用室１８の冷却に利用することができるようになる。 With this configuration, the second cooling unit 50 can be used for cooling the cooling dedicated chamber 18 when the second cooling unit 50 is in operation.
図１０は、図９の冷媒回路の変形例を示す構成図である。
この冷媒回路では、第２冷却ユニット５０の放熱器５２の吐出側に接続する冷媒配管に三方弁５７を設け、放熱器５２の吐出側を、三方弁５７とキャピラリチューブ５６を介して吸熱器５５の吸込側に、また、三方弁５７とキャピラリチューブ５３を介して吸熱器５４の吸込側に、それぞれ三方弁５７により切換え接続可能なように構成されている。
FIG. 10 is a block diagram showing a modification of the refrigerant circuit of FIG.
In this refrigerant circuit, a three-way valve 57 is provided in the refrigerant pipe connected to the discharge side of the radiator 52 of the second cooling unit 50, and the discharge side of the radiator 52 is connected to the heat absorber 55 via the three-way valve 57 and the capillary tube 56. Further, the three-way valve 57 can be switched and connected to the suction side of the heat absorber 54 via the three-way valve 57 and the capillary tube 53.
かかる構成では、第２冷却ユニット５０の稼働時に、三方弁５７の切換えにより、第２冷却ユニット５０を冷却専用室１８の冷却に利用したり、利用するのを止めたりすることが選択できるようになる。 In such a configuration, when the second cooling unit 50 is in operation, it can be selected to use the second cooling unit 50 for cooling the cooling dedicated chamber 18 or to stop using it by switching the three-way valve 57. Become.
図１１は、図５の冷却ユニットの配置構成における更に別の冷媒回路例を示す構成図。
この冷媒回路では、第２冷却ユニット５０に吸熱器５５に加えて更に吸熱器５８を設け、吸熱器５５を冷却専用室１８に配置し、吸熱器５８を冷温切換室１７に配置し、放熱器５２の吐出側を、開閉弁５９Ａとキャピラリチューブ５６Ａを介して吸熱器５５の吸込側に接続可能とし、放熱器５２の吐出側を、開閉弁５９Ｂとキャピラリチューブ５６Ｂを介して吸熱器５８の吸込側に接続可能とし、吸熱器５５と吸熱器５８の各吐出側に接続する冷媒配管を合流させて吸熱器５４の吸込側に接続するよう構成されている。
FIG. 11 is a configuration diagram showing still another refrigerant circuit example in the arrangement configuration of the cooling unit of FIG. 5.
In this refrigerant circuit, the second cooling unit 50 is further provided with a heat absorber 58 in addition to the heat absorber 55, the heat absorber 55 is disposed in the cooling exclusive chamber 18, the heat absorber 58 is disposed in the cold temperature switching chamber 17, and the radiator 52 is connectable to the suction side of the heat absorber 55 via the on-off valve 59A and the capillary tube 56A, and the discharge side of the heat radiator 52 is connected to the suction of the heat absorber 58 via the on-off valve 59B and the capillary tube 56B. The refrigerant pipes connected to the discharge sides of the heat absorber 55 and the heat absorber 58 are joined together and connected to the suction side of the heat absorber 54.
かかる構成では、第２冷却ユニット５０の稼働時に、冷温切換室１７と冷却専用室１８の冷却に第２冷却ユニット５０を利用することができ、開閉弁５９Ａ，５９Ｂの開閉制御により、冷温切換室１７又は冷却専用室１８だけに利用するか、冷温切換室１７と冷却専用室１８の両室の冷却に利用するか、を選択することができるようになる。 In such a configuration, when the second cooling unit 50 is in operation, the second cooling unit 50 can be used for cooling the cooling / cooling switching chamber 17 and the cooling exclusive chamber 18, and the cooling / cooling switching chamber is controlled by opening / closing control of the opening / closing valves 59A and 59B. 17 or only for the cooling exclusive chamber 18 or whether it is used for cooling both of the cold temperature switching chamber 17 and the exclusive cooling chamber 18 can be selected.
図１２は、図１１の冷媒回路の変形例を示す構成図である。
この冷媒回路では、図１１の回路構成に、開閉弁５９Ｃとキャピラリチューブ５３を追加して、放熱器５２の吐出側を、開閉弁５９Ｃとキャピラリチューブ５３を介して吸熱器５４の吸込側にも接続可能となるよう構成されている。
FIG. 12 is a block diagram showing a modification of the refrigerant circuit of FIG.
In this refrigerant circuit, an opening / closing valve 59C and a capillary tube 53 are added to the circuit configuration of FIG. 11, and the discharge side of the radiator 52 is also connected to the suction side of the heat absorber 54 via the opening / closing valve 59C and the capillary tube 53. It is configured to be connectable.
かかる構成では、第２冷却ユニット５０の稼働時に、開閉弁５９Ａ，５９Ｂ，５９Ｃの開閉制御により、第２冷却ユニット５０を、冷温切換室１７又は冷却専用室１８だけに利用するか、冷温切換室１７と冷却専用室１８の両室の冷却に利用するか、第２冷却ユニット５０を冷温切換室１７と冷却専用室１８の冷却に利用するのを止めたりするか、を選択できるようになる。 In such a configuration, when the second cooling unit 50 is in operation, the second cooling unit 50 is used only for the cool / warm switching chamber 17 or the cooling-dedicated chamber 18 by the opening / closing control of the on-off valves 59A, 59B, 59C, or the cool / warm switching chamber. It is possible to select whether the second cooling unit 50 is used for cooling both the cooling room 17 and the cooling room 18 or whether the second cooling unit 50 is stopped from being used for cooling the cooling temperature switching room 17 and the cooling room 18.
図１３は、冷却ユニットの別の配置構成における冷媒回路の構成図を示す。
この冷媒回路は、冷温切換室１６における第１冷却ユニット３０の吸熱器３２と第２冷却ユニット５０の圧縮機５１及び放熱器５２の配置構成を、冷温切換室１６の前方側から後方側に向けて、第１冷却ユニット３０の吸熱器３２、第２冷却ユニット５０の放熱器５２、第２冷却ユニット５０の圧縮機５１の順で配置している。即ち、図５の冷媒回路の配置構成に対して、第２冷却ユニット５０の放熱器５２と圧縮機５１の位置を入れ替えて構成されている。
FIG. 13 shows a configuration diagram of a refrigerant circuit in another arrangement configuration of the cooling unit.
In this refrigerant circuit, the arrangement of the heat absorber 32 of the first cooling unit 30 and the compressor 51 and the radiator 52 of the second cooling unit 50 in the cold / temperature switching chamber 16 is directed from the front side to the rear side of the cold / temperature switching chamber 16. The heat absorber 32 of the first cooling unit 30, the radiator 52 of the second cooling unit 50, and the compressor 51 of the second cooling unit 50 are arranged in this order. That is, the arrangement of the refrigerant circuit in FIG. 5 is configured by replacing the positions of the radiator 52 and the compressor 51 of the second cooling unit 50.
この場合、第２冷却ユニット５０の冷媒として、二酸化炭素（ＣＯ2）を使用し、圧縮機５１として冷媒を超臨界圧力以上で圧縮する圧縮機を用いる。尚、第１冷却ユニット３０の冷媒としては、本実施形態では例えばＣＯ2とするが、特に限定はしない。 In this case, carbon dioxide (CO 2 ) is used as the refrigerant of the second cooling unit 50, and a compressor that compresses the refrigerant at a supercritical pressure or higher is used as the compressor 51. The refrigerant of the first cooling unit 30 is, for example, CO 2 in the present embodiment, but is not particularly limited.
かかる構成によれば、冷温切換室１６，１７及び冷却専用室１８での室内空気が、後側から前側、上方、後部ダクト（図示せず）の順で流れており、冷温切換室１６内において、第１冷却ユニット３０と第２冷却ユニット５０が稼働状態にあるとき、例えば圧縮機５１の表面温度が８０℃、圧縮機５１の吐出側の冷媒配管温度が１２０℃（放熱器５１の入口温度）、放熱器５１の出口温度が６０℃（第２冷却ユニット５０の冷媒であるＣＯ2は等温変化ではない）とした場合、圧縮機５１を冷却した後の室内雰囲気温度は放熱器５２の温度より低く、放熱器５２からの放熱が可能となる。しかし、圧縮機５１と放熱器５２の配置を逆にした場合、即ち、図５のように、冷温切換室１６の前方側から後方側に向けて、第１冷却ユニット３０の吸熱器３２、第２冷却ユニット５０の圧縮機５１、放熱器５２の順で配置した場合には、圧縮機５１の温度が低下し、放熱器５２で放熱した後の空気温度が圧縮機５１の表面温度より高いので、圧縮機５１を冷却し難くなってしまう。 According to such a configuration, the room air in the cooling / temperature switching chambers 16, 17 and the cooling dedicated chamber 18 flows in the order from the rear side to the front side, the upper side, and the rear duct (not shown). When the first cooling unit 30 and the second cooling unit 50 are in operation, for example, the surface temperature of the compressor 51 is 80 ° C., the refrigerant pipe temperature on the discharge side of the compressor 51 is 120 ° C. (the inlet temperature of the radiator 51). ) When the outlet temperature of the radiator 51 is 60 ° C. (CO 2 as the refrigerant of the second cooling unit 50 is not isothermal), the indoor ambient temperature after cooling the compressor 51 is the temperature of the radiator 52 The heat dissipation from the radiator 52 is possible. However, when the arrangement of the compressor 51 and the radiator 52 is reversed, that is, as shown in FIG. 5, from the front side to the rear side of the cold temperature switching chamber 16, the heat absorber 32 of the first cooling unit 30, 2 When the compressor 51 and the radiator 52 of the cooling unit 50 are arranged in this order, the temperature of the compressor 51 decreases, and the air temperature after the heat radiation by the radiator 52 is higher than the surface temperature of the compressor 51. This makes it difficult to cool the compressor 51.
図１４は、図１３の冷却ユニットの配置構成における別の冷媒回路例を示す構成図であり、この冷媒回路は、第２冷却ユニット５０の圧縮機５１と放熱器５２の位置が異なる以外は、図９の冷媒回路と同じ構成である。 FIG. 14 is a configuration diagram showing another refrigerant circuit example in the arrangement configuration of the cooling unit of FIG. 13, and this refrigerant circuit is different except that the positions of the compressor 51 and the radiator 52 of the second cooling unit 50 are different. It is the same structure as the refrigerant circuit of FIG.
かかる構成では、図９に示す冷媒回路構成と同様、第２冷却ユニット５０の稼働時に、第２冷却ユニット５０を冷却専用室１８の冷却に利用することができるようになる。 With this configuration, the second cooling unit 50 can be used for cooling the cooling dedicated chamber 18 when the second cooling unit 50 is in operation, as in the refrigerant circuit configuration shown in FIG.
図１５は、図１４の冷媒回路の変形例を示す構成図であり、この冷媒回路は、第２冷却ユニット５０の圧縮機５１と放熱器５２の位置が異なる以外は、図１０の冷媒回路と同じ構成である。 FIG. 15 is a block diagram showing a modification of the refrigerant circuit of FIG. 14. This refrigerant circuit differs from the refrigerant circuit of FIG. 10 except that the positions of the compressor 51 and the radiator 52 of the second cooling unit 50 are different. It is the same configuration.
かかる構成では、図１０に示す冷媒回路構成と同様、第２冷却ユニット５０の稼働時に、三方弁５７の切換えにより、第２冷却ユニット５０を冷却専用室１８の冷却に利用したり、利用するのを止めたりすることが選択できるようになる。 In this configuration, as in the refrigerant circuit configuration shown in FIG. 10, the second cooling unit 50 is used for cooling the cooling dedicated chamber 18 or is used by switching the three-way valve 57 when the second cooling unit 50 is in operation. You can choose to stop.
図１６は、図１３の冷却ユニットの配置構成における更に別の冷媒回路例を示す構成図であり、この冷媒回路は、第２冷却ユニット５０の圧縮機５１と放熱器５２の位置が異なる以外は、図１１の冷媒回路と同じ構成である。 FIG. 16 is a configuration diagram showing still another refrigerant circuit example in the arrangement configuration of the cooling unit in FIG. 13, and this refrigerant circuit is different except that the positions of the compressor 51 and the radiator 52 of the second cooling unit 50 are different. The configuration is the same as that of the refrigerant circuit of FIG.
かかる構成では、図１１に示す冷媒回路構成と同様、第２冷却ユニット５０の稼働時に、冷温切換室１７と冷却専用室１８の冷却に第２冷却ユニット５０を利用することができ、開閉弁５７Ａ，５７Ｂの開閉制御により、冷温切換室１７又は冷却専用室１８だけに利用するか、冷温切換室１７と冷却専用室１８の両室の冷却に利用するか、を選択することができるようになる。 In this configuration, similar to the refrigerant circuit configuration shown in FIG. 11, the second cooling unit 50 can be used for cooling the cooling / temperature switching chamber 17 and the cooling dedicated chamber 18 during operation of the second cooling unit 50, and the on-off valve 57A. , 57B can be used to select whether to use only the cooling / cooling switching chamber 17 or the cooling dedicated chamber 18 or to cool both the cooling / cooling switching chamber 17 and the cooling dedicated chamber 18. .
図１７は、図１６の冷媒回路の変形例を示す構成図であり、この冷媒回路は、第２冷却ユニット５０の圧縮機５１と放熱器５２の位置が異なる以外は、図１２の冷媒回路と同じ構成である。 FIG. 17 is a configuration diagram showing a modification of the refrigerant circuit of FIG. 16, which is the same as the refrigerant circuit of FIG. 12 except that the positions of the compressor 51 and the radiator 52 of the second cooling unit 50 are different. It is the same configuration.
かかる構成では、図１２に示す冷媒回路構成と同様、第２冷却ユニット５０の稼働時に、開閉弁５９Ａ，５９Ｂ，５９Ｃの開閉制御により、第２冷却ユニット５０を、冷温切換室１７又は冷却専用室１８だけに利用するか、冷温切換室１７と冷却専用室１８の両室の冷却に利用するか、第２冷却ユニット５０を冷温切換室１７と冷却専用室１８の冷却に利用するのを止めたりするか、を選択できるようになる。 In this configuration, similarly to the refrigerant circuit configuration shown in FIG. 12, when the second cooling unit 50 is in operation, the second cooling unit 50 is controlled by the open / close valves 59A, 59B, 59C to control the second cooling unit 50 to the cooling / temperature switching chamber 17 or the cooling dedicated chamber. 18 is used only for cooling, the cooling / cooling switching chamber 17 and the cooling dedicated chamber 18 are cooled, or the second cooling unit 50 is stopped from being used for cooling the cooling / cooling switching chamber 17 and the cooling dedicated chamber 18. You will be able to choose.
また、図５、図９〜図１７に示す冷媒回路構成において、第１冷却ユニット３０と第２冷却ユニット５０は、冷温切換室１６，１７と冷却専用室１８の温度検出用温度センサの検出温度に基づいて圧縮機３１，５１をＯＮ／ＯＦＦするが、第２冷却ユニット５０の圧縮機５１のＯＮ動作に同期させて第１冷却ユニット３０の圧縮機３１をＯＮ駆動するとよい。このようにして、第１冷却ユニット３０側の機械室２４に配置した放熱器３５の放熱を第２冷却ユニット５０側の機械室２４に配置した吸熱器５４で吸熱させることで、第１冷却ユニット３０側の放熱器３５の放熱を第２冷却ユニット５０側の吸熱器５４で無駄なく回収することができ、第２冷却ユニット５０の吸熱器５４が単に大気から吸熱するよりも第２冷却ユニット５０の効率を高めることができる。ただし、冷温切換室１７や冷却専用室１８の室温がある所定温度以上になった場合は、商品温度を維持するため、第２冷却ユニット５０側の圧縮機５１の駆動状態に関係なく、第１冷却ユニット３０側の圧縮機３１をＯＮ駆動する構成とすることが望ましい。 Further, in the refrigerant circuit configurations shown in FIGS. 5 and 9 to 17, the first cooling unit 30 and the second cooling unit 50 are detected by the temperature detection temperature sensors in the cold temperature switching chambers 16 and 17 and the cooling dedicated chamber 18. The compressors 31 and 51 are turned ON / OFF based on the above, but the compressor 31 of the first cooling unit 30 may be turned ON in synchronization with the ON operation of the compressor 51 of the second cooling unit 50. In this manner, the heat radiation of the radiator 35 arranged in the machine room 24 on the first cooling unit 30 side is absorbed by the heat absorber 54 arranged in the machine room 24 on the second cooling unit 50 side, whereby the first cooling unit. The heat radiation of the heat radiator 35 on the 30 side can be recovered without waste by the heat absorber 54 on the second cooling unit 50 side, so that the heat sink 54 of the second cooling unit 50 simply absorbs heat from the atmosphere. Can increase the efficiency. However, when the room temperature of the cooling / cooling switching chamber 17 or the cooling exclusive chamber 18 exceeds a predetermined temperature, the first temperature is maintained regardless of the driving state of the compressor 51 on the second cooling unit 50 side in order to maintain the product temperature. It is desirable that the compressor 31 on the cooling unit 30 side is driven ON.
尚、圧縮機を１つとして、これを加温可能な収納室内の下部に配置し、機械室に圧縮機を配置しない構成でもよいが、この場合、重量バランス的に自動販売機の設置安定性が損なわれる虞れがある。従って、上記実施形態のように、機械室に圧縮機を配置し、加温可能な収納室内の下部には他の圧縮機を配置する構成が望ましい。
また、加温可能な収納室を冷温切換室としたが、加温室であってもよく、この場合、冷温切換室１６における第１冷却ユニット３０の吸熱器３２を省略してもよい。
また、送風機４４，４５，４６は、冷温切換室１６の最後方側、即ち、図５〜図１２においては放熱器５２の後側、図１３〜図１７においては圧縮機５１の後側に配置してもよい。ただし、送風機の特性上、空気の流れを阻害するもの（特に熱交換器（放熱器や吸熱器））に対して、空気を押し込む方向より空気を吸い出す方向の方が好ましく、本実施形態のような配置が望ましい。
In addition, it is possible to adopt a configuration in which a single compressor is disposed in the lower part of the storage room where heating is possible and no compressor is disposed in the machine room, but in this case, the installation stability of the vending machine is balanced in weight. May be damaged. Therefore, as in the above-described embodiment, it is desirable that the compressor is disposed in the machine room, and another compressor is disposed in the lower part of the storage chamber that can be heated.
Moreover, although the storage room which can be heated was made into the cold temperature switching room, it may be a warming room. In this case, the heat absorber 32 of the first cooling unit 30 in the cold temperature switching room 16 may be omitted.
The blowers 44, 45, and 46 are arranged on the rearmost side of the cooling / temperature switching chamber 16, that is, on the rear side of the radiator 52 in FIGS. 5 to 12 and on the rear side of the compressor 51 in FIGS. May be. However, due to the characteristics of the blower, the direction that sucks out air is preferable to the direction that pushes in air (especially heat exchangers (heat radiators and heat sinks)) that obstruct the air flow. Is desirable.
１ 自動販売機
２ 本体
３ 外扉
１４ 商品収納部
１５ 左右仕切板
１６ 冷温切換室（加温可能な収納室）
１７ 冷温切換室
１８ 冷却専用室
２１ 下部側内扉
２４ 機械室
２５Ａ 第１上下仕切板
２５Ｂ 第２上下仕切板
２８ 閉塞板
２９ 側面仕切板
３０ 第１冷却ユニット
３１ 圧縮機
３２，３３，３４ 吸熱器（第１冷却ユニットの）
５０ 第２冷却ユニット
５１ 圧縮機
５２ 放熱器
５５，５８ 吸熱器（第２冷却ユニットの）
７３ ガスケット
DESCRIPTION OF SYMBOLS 1 Vending machine 2 Main body 3 Outer door 14 Goods storage part 15 Left-right partition plate 16 Cold / temperature switching room (storage room which can be heated)
17 Cooling temperature switching chamber 18 Cooling chamber 21 Lower side inner door 24 Machine room 25A First upper and lower partition plates 25B Second upper and lower partition plates 28 Closure plate 29 Side partition plate 30 First cooling unit 31 Compressors 32, 33 and 34 Heat absorber (Of the first cooling unit)
50 Second cooling unit 51 Compressor 52 Radiator 55, 58 Heat absorber (of second cooling unit)
73 Gasket
Claims (15)
前記加温可能な収納室の下部に位置する前記上下仕切板の上側に、前記冷却ユニットの圧縮機を配置したことを特徴とする自動販売機。 The inside of the main body is vertically divided by an upper and lower partition plate, a product storage unit is provided above the upper and lower partition plate, a machine room in which a cooling unit is disposed below the upper and lower partition plate, and the product storage unit is a product In a vending machine equipped with a storage room that can heat
A vending machine, wherein a compressor of the cooling unit is arranged above the upper and lower partition plates located in the lower part of the warmable storage chamber.
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| JP2013272292A JP6241607B2 (en) | 2013-12-27 | 2013-12-27 | vending machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013272292A JP6241607B2 (en) | 2013-12-27 | 2013-12-27 | vending machine |
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| JP6241607B2 true JP6241607B2 (en) | 2017-12-06 |
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| JP2008234138A (en) * | 2007-03-19 | 2008-10-02 | Fuji Electric Retail Systems Co Ltd | Vending machine |
| JP4893445B2 (en) * | 2007-04-18 | 2012-03-07 | 富士電機リテイルシステムズ株式会社 | vending machine |
| JP2012008828A (en) * | 2010-06-25 | 2012-01-12 | Panasonic Corp | Automatic vending machine |
| JP2012221349A (en) * | 2011-04-12 | 2012-11-12 | Fuji Electric Co Ltd | Heat transport heating device of automatic vending machine |
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