JPH0537336Y2 - - Google Patents
Info
- Publication number
- JPH0537336Y2 JPH0537336Y2 JP1986058256U JP5825686U JPH0537336Y2 JP H0537336 Y2 JPH0537336 Y2 JP H0537336Y2 JP 1986058256 U JP1986058256 U JP 1986058256U JP 5825686 U JP5825686 U JP 5825686U JP H0537336 Y2 JPH0537336 Y2 JP H0537336Y2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- product storage
- evaporator
- cooling
- solenoid valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003507 refrigerant Substances 0.000 claims description 106
- 238000001816 cooling Methods 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 description 12
- 230000008020 evaporation Effects 0.000 description 12
- 230000007423 decrease Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F9/00—Details other than those peculiar to special kinds or types of apparatus
- G07F9/10—Casings or parts thereof, e.g. with means for heating or cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F9/00—Details other than those peculiar to special kinds or types of apparatus
- G07F9/10—Casings or parts thereof, e.g. with means for heating or cooling
- G07F9/105—Heating or cooling means, for temperature and humidity control, for the conditioning of articles and their storage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
- Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は自動販売機に関し、特に複数の独立し
た商品収納室を有し商品収納室毎にコールド商
品、ホツト商品を販売可能にした、いわゆるホツ
トアンドコールドタイプの自動販売機の改良に関
する。[Detailed description of the invention] [Industrial application field] The present invention relates to a vending machine, in particular a so-called vending machine that has multiple independent product storage chambers and can sell cold and hot products in each product storage chamber. Regarding improvements to hot and cold type vending machines.
この種の自動販売機の一例を第３図に参照して
説明する。自動販売機本体内に商品収納室Ａ，
Ｂ，Ｃと機械室Ｄとを断熱壁で互いに独立して区
画形成している。商品収納室Ａ，Ｂ，Ｃにはそれ
ぞれ、加温源としての電気ヒータ１Ａ，１Ｂ，１
Ｃ、冷却源としての冷媒蒸発器２Ａ，２Ｂ，２Ｃ
及びモータフアン３Ａ，３Ｂ，３Ｃとを配設して
いる。機械室Ｄには、冷媒圧縮機４とモータフア
ン５及び冷媒凝縮器６とを配設している。各商品
収納室はホツト−コールド運転切換スイツチによ
り加温運転、冷却運転が切り換えでき、それぞれ
冷媒供給のオン、オフ、電気ヒータのオン、オフ
制御により設置温度に維持される。商品収納室
Ａ，Ｂ，Ｃ内にはこの他、ホツト商品、コールド
商品の収納器、搬出機構等が組み込まれるが、本
考案の要旨ではないので説明は省略する。
An example of this type of vending machine will be explained with reference to FIG. Product storage room A inside the vending machine body.
B, C and machine room D are partitioned independently from each other by a heat insulating wall. Electric heaters 1A, 1B, 1 are installed as heating sources in the product storage rooms A, B, and C, respectively.
C. Refrigerant evaporators 2A, 2B, 2C as cooling sources
and motor fans 3A, 3B, and 3C. The machine room D is provided with a refrigerant compressor 4, a motor fan 5, and a refrigerant condenser 6. Each product storage room can be switched between heating operation and cooling operation using a hot-cold operation changeover switch, and is maintained at the installation temperature by controlling the refrigerant supply on and off and the electric heater on and off. In addition, the product storage chambers A, B, and C include storage containers for hot products and cold products, a carry-out mechanism, etc., but their explanations are omitted since they are not the gist of the present invention.
第４図はそのうちの冷却回路図であり、商品収
納室Ａについて言えば冷媒蒸発器２Ａと冷媒膨張
器としてのキヤピラリチユーブ７Ａ及び電磁弁８
Ａとが直列接続されている。電磁弁８Ａは冷却運
転時に商品収納室Ａ内の温度に応じて開閉制御さ
れる。商品収納室Ｂ，Ｃについても同様である。
そして、冷媒蒸発器とキヤピラリチユーブ及び電
磁弁との直列回路は互いに並列に接続され、これ
らの並列接続回路に冷媒圧縮機４と冷媒凝縮器６
（以下、これをコンデンシングユニツトと呼ぶ）
とが直列に接続されている。 FIG. 4 is a cooling circuit diagram of these, and for product storage chamber A, a refrigerant evaporator 2A, a capillary tube 7A as a refrigerant expander, and a solenoid valve 8.
A is connected in series. The solenoid valve 8A is controlled to open and close according to the temperature within the product storage chamber A during cooling operation. The same applies to product storage rooms B and C.
The series circuits of the refrigerant evaporator, the capillary tube, and the solenoid valve are connected in parallel with each other, and the refrigerant compressor 4 and the refrigerant condenser 6 are connected to these parallel connected circuits.
(Hereafter, this is called the condensing unit)
are connected in series.
ところで、この冷却回路では、各商品収納室の
容積を同一と見なし、キヤピラリチユーブの冷媒
流入抵抗R1、冷媒蒸発器２Ａ，２Ｂ，２Ｃが３
台同時に運転された場合の冷媒循環量をｉとする
と、各冷媒蒸発器に流れ込む冷媒量はｉ／３であ
る。 By the way, in this cooling circuit, the volume of each product storage chamber is assumed to be the same, and the refrigerant inflow resistance R 1 of the capillary tube and the refrigerant evaporators 2A, 2B, 2C are 3.
If the amount of refrigerant circulated when the units are operated simultaneously is i, then the amount of refrigerant flowing into each refrigerant evaporator is i/3.
次に、第５図ａに示すように商品収納室Ａが加
温運転中、あるいは冷却運転中に商品収納室Ａ内
温度が設定温度に到達して電磁弁８Ａを閉とし、
冷媒蒸発器２Ａの運転を停止（冷媒の流れを遮
断）した場合、冷媒循環量は凝縮圧力・蒸発圧力
が第４図と同じ状態であれば2/3・ｉであり、各
冷媒蒸発器２Ｂ，２Ｃに流れ込む冷媒循環量は
ｉ／３である。 Next, as shown in FIG. 5a, the temperature inside the product storage chamber A reaches the set temperature while the product storage chamber A is in the heating operation or the cooling operation, and the solenoid valve 8A is closed.
When the operation of the refrigerant evaporator 2A is stopped (the flow of refrigerant is cut off), the refrigerant circulation amount is 2/3·i if the condensation pressure and evaporation pressure are the same as in Fig. 4, and each refrigerant evaporator 2B , 2C is i/3.
しかし、冷媒凝縮器６の凝縮能力は常に一定で
あるため、冷媒蒸発器２台運転では３台運転と比
較すると冷媒循環量が減少するため、冷媒循環量
の割合に対して凝縮能力が大きくなる。このため
凝縮圧力・凝縮温度は低下し、さらに冷媒凝縮器
には冷媒液が溜り込むようになる。凝縮温度が下
がり凝縮圧力の低下に伴い、冷媒蒸発器における
蒸発圧力も低下し、蒸発温度も低下する。また、
凝縮圧力と蒸発圧力差は、冷媒蒸発器３台運転と
比較すると小さくなり、キヤピラリチユーブの流
入抵抗はR1より大きくなる。よつて、冷媒循環
量は期待するｉ／３よりかなり少なくなり、商品
収納室の冷却能力不足が発生し、また冷媒圧縮機
は連続運転になる可能性がある。
However, since the condensing capacity of the refrigerant condenser 6 is always constant, when operating two refrigerant evaporators, the amount of refrigerant circulation decreases compared to operating three evaporators, so the condensing capacity increases relative to the proportion of the circulating amount of refrigerant. . As a result, the condensing pressure and temperature decrease, and the refrigerant liquid begins to accumulate in the refrigerant condenser. As the condensing temperature decreases and the condensing pressure decreases, the evaporation pressure in the refrigerant evaporator also decreases, and the evaporation temperature also decreases. Also,
The difference between the condensation pressure and the evaporation pressure is smaller than when three refrigerant evaporators are operated, and the inflow resistance of the capillary tube is greater than R1 . Therefore, the amount of refrigerant circulated will be considerably less than the expected i/3, resulting in insufficient cooling capacity of the product storage compartment, and there is a possibility that the refrigerant compressor will be in continuous operation.
次に、第５図ｂに示すように、商品収納室Ａ，
Ｃの冷媒蒸発器２Ａ，２Ｃ（２Ａ，２Ｂでも同様）
の運転が停止した場合、凝縮圧力・蒸発圧力が第
４図と同じ状態であれば冷媒循環量はｉ／３であ
る。ところが、第５図ａで説明した様に、冷媒循
環量の減少により凝縮圧力・蒸発圧力がさらに低
下し、冷媒循環量の減少は第５図ａの各冷媒蒸発
器に流れる量よりもさらに減少して蒸発圧力は真
空状態に近くなり、冷媒圧縮機は真空運転とな
り、圧縮機を破壊する危険がある。しかも、商品
収納室の商品は増々冷えなくなる。 Next, as shown in FIG. 5b, the product storage room A,
C refrigerant evaporator 2A, 2C (same for 2A, 2B)
When the operation of the refrigerant is stopped, the refrigerant circulation amount is i/3 if the condensation pressure and evaporation pressure are the same as shown in FIG. However, as explained in Fig. 5a, the condensing pressure and evaporation pressure further decrease due to the decrease in the refrigerant circulation amount, and the reduction in the refrigerant circulation amount is further reduced than the amount flowing to each refrigerant evaporator in Fig. 5a. As a result, the evaporation pressure becomes close to a vacuum state, and the refrigerant compressor is operated under vacuum, which poses a risk of destroying the compressor. Moreover, the products in the product storage room are becoming less and less cold.
本考案は３台以上の冷媒蒸発器を並列接続した
冷却回路においてコンデンシングユニツト１台で
も冷却回路に流れる冷媒循環量を常に一定に維持
し、運転条件が変化しても冷媒凝縮圧力、蒸発圧
力を一定にして常に安定した冷却性能を発揮する
冷却回路を提供しようとするものである。 In a cooling circuit in which three or more refrigerant evaporators are connected in parallel, the amount of refrigerant circulated through the cooling circuit can be maintained constant even with a single condensing unit, and the refrigerant condensation pressure and evaporation pressure can be maintained even when operating conditions change. The objective is to provide a cooling circuit that maintains constant cooling performance and always exhibits stable cooling performance.
本考案は、複数の独立した商品収納室を有し各
商品収納室には冷媒蒸発器を設置すると共に、少
なくとも１つの前記商品収納室にヒータを設置し
て冷却、加温運転の切り換えによりコールド商
品、ホツト商品を販売可能にした自動販売機にお
いて、前記冷媒蒸発器にそれぞれ電磁弁を直列接
続すると共に、該冷媒蒸発器と電磁弁との直列回
路をそれぞれ互いに並列に接続し、該並列接続部
の冷媒入口側には冷媒膨張器を接続し、前記並列
接続部の冷媒出口側には余剰冷媒液を蓄積可能な
アキユムレータを接続したことを特徴とする。
The present invention has a plurality of independent product storage compartments, each product storage compartment is equipped with a refrigerant evaporator, and at least one of the product storage compartments is equipped with a heater to cool the product by switching between cooling and heating operation. In a vending machine capable of selling products and hot products, a solenoid valve is connected in series to each of the refrigerant evaporators, and the series circuits of the refrigerant evaporator and the solenoid valve are respectively connected in parallel to each other, and the parallel connection is performed. A refrigerant expander is connected to the refrigerant inlet side of the section, and an accumulator capable of accumulating surplus refrigerant liquid is connected to the refrigerant outlet side of the parallel connection section.
このような構成により、冷媒膨張器は並列接続
部への冷媒供給量を一定に維持し、またアキユム
レータは冷媒蒸発器が１台だけ運転される場合の
余剰冷媒を一次蓄積する。
With this configuration, the refrigerant expander maintains a constant supply of refrigerant to the parallel connection, and the accumulator temporarily stores surplus refrigerant when only one refrigerant evaporator is operated.
第１図は本考案による冷却回路の一例であり、
第４図と同じ部分には同一番号を付している。ま
た、自動販売機本体内の構造は第３図と同じであ
る。商品収納室Ａについて言えば、冷媒蒸発器２
Ａと電磁弁８Ａとを直列接続しており、商品収納
室Ｂ，Ｃについても同様である。そして、これら
冷媒蒸発器と電磁弁との直列回路が互いに並列接
続されている。これら並列接続部の冷媒入口側と
冷媒凝縮器６との間には冷媒膨張器としてキヤピ
ラリチユーブ（膨張弁でも良い）７を接続してい
る。一方、並列接続部の冷媒出口側と冷媒圧縮機
４の吸込側との間にはアキユムレータ９を接続し
ている。
Figure 1 shows an example of a cooling circuit according to the present invention.
The same parts as in FIG. 4 are given the same numbers. Further, the structure inside the vending machine main body is the same as that shown in FIG. 3. Regarding product storage room A, refrigerant evaporator 2
A and a solenoid valve 8A are connected in series, and the same applies to product storage chambers B and C. These series circuits of the refrigerant evaporator and the solenoid valve are connected in parallel to each other. A capillary tube (or an expansion valve) 7 is connected as a refrigerant expander between the refrigerant inlet side of these parallel connections and the refrigerant condenser 6. On the other hand, an accumulator 9 is connected between the refrigerant outlet side of the parallel connection and the suction side of the refrigerant compressor 4.
本考案による冷却回路の冷媒循環回路図である
第２図ａ，ｂにおいて、キヤピラリチユーブ７の
冷媒流入抵抗をR2とし、冷媒蒸発器２Ａ，２Ｂ，
２Ｃが３台同時運転された時の冷媒循環量をｉと
すると、各冷媒蒸発器に流れ込む冷媒量はｉ／３
である。 In FIGS. 2a and 2b, which are refrigerant circulation circuit diagrams of the cooling circuit according to the present invention, the refrigerant inflow resistance of the capillary tube 7 is R2 , and the refrigerant evaporators 2A, 2B,
If the amount of refrigerant circulated when three 2Cs are operated simultaneously is i, the amount of refrigerant flowing into each refrigerant evaporator is i/3.
It is.
次に、第２図ａに示すように、商品収納室Ａが
加温中、あるいは商品収納室Ａの庫内温度が設定
の温度に到達して電磁弁８Ａを閉とし、冷媒蒸発
器２Ａの運転を停止した場合、冷媒循環量はキヤ
ピラリ抵抗が一定であるためｉであり、また各冷
媒蒸発器２Ｂ，２Ｃに流れ込む冷媒量はｉ／２で
ある。このように、冷媒蒸発器が１台停止して
も、冷媒循環量が減少することが無く、凝縮圧
力・蒸発圧力は３台運転の時と同じである。ま
た、各冷媒蒸発器に流れ込む冷媒量も３台運転の
時よりも多くなり、冷却能力も増加し、第５図ａ
より効率的な運転を行ない、省エネルギーを達成
することができる。 Next, as shown in Figure 2a, when the product storage compartment A is being heated or the internal temperature of the product storage compartment A has reached the set temperature, the solenoid valve 8A is closed and the refrigerant evaporator 2A is closed. When the operation is stopped, the amount of refrigerant circulated is i because the capillary resistance is constant, and the amount of refrigerant flowing into each refrigerant evaporator 2B, 2C is i/2. In this way, even if one refrigerant evaporator stops, the refrigerant circulation amount does not decrease, and the condensing pressure and evaporation pressure are the same as when three refrigerant evaporators are in operation. In addition, the amount of refrigerant flowing into each refrigerant evaporator is larger than when operating three refrigerant evaporators, and the cooling capacity is also increased.
It is possible to achieve more efficient operation and energy savings.
次に、商品収納室Ａ，Ｃの冷媒蒸発器２Ａ，２
Ｃ（２Ａ，２Ｂでも同じ）の運転が停止した場合
でも、キヤピラリチユーブ７の流入抵抗はR2で
あるため冷媒循環量はｉであり、凝縮圧力・蒸発
圧力も第１図と同じであり、冷媒蒸発器に流れ込
む冷媒量も第５図ｂよりはるかに多くなり、さら
に効率的な運転を提供できる。 Next, the refrigerant evaporators 2A and 2 of the product storage rooms A and C are
Even if the operation of C (same for 2A and 2B) is stopped, the inflow resistance of capillary tube 7 is R2 , so the refrigerant circulation amount is i, and the condensation pressure and evaporation pressure are the same as in Figure 1. , the amount of refrigerant flowing into the refrigerant evaporator is also much larger than in FIG. 5b, providing more efficient operation.
しかし、冷媒蒸発器の容積は、商品収納室の大
きさ、コスト的な面から限られた大きさになり、
さらに冷媒蒸発器が３台運転でも１台運転でも冷
媒蒸発器各々の蒸発能力は一定であるため第２図
ｂの様な冷媒蒸発器１台運転の時は冷媒が過剰に
なる場合がある。この場合、冷媒液を圧縮機４が
吸入する様になり、液圧縮するおそれがある。ゆ
えにこれを防止するために、アキユムレータ９は
余剰冷媒液を蓄積できるだけの容積を持つように
し、この部分で冷媒液を冷媒ガスに変換して冷媒
圧縮機４が液圧縮するのを防止する。 However, the capacity of the refrigerant evaporator is limited due to the size of the product storage room and cost considerations.
Furthermore, since the evaporation capacity of each refrigerant evaporator is constant whether three refrigerant evaporators are operated or one refrigerant evaporator is operated, there may be an excess of refrigerant when one refrigerant evaporator is operated as shown in FIG. 2b. In this case, the compressor 4 will begin to suck in the refrigerant liquid, and there is a risk that the liquid will be compressed. Therefore, in order to prevent this, the accumulator 9 is designed to have a volume sufficient to accumulate excess refrigerant liquid, and this portion converts the refrigerant liquid into refrigerant gas to prevent the refrigerant compressor 4 from compressing the liquid.
以上本考案を一例について説明したが、本考案
は様々な変更が可能である。すなわち、商品収納
室が２つあるいは４つ以上でも原理は同じである
ことは明白である。また、電磁弁８Ａ〜８Ｃは冷
媒蒸発器の冷媒入口側に接続しても良いし、アキ
ユムレータ９は、電磁弁８Ａ〜８Ｃの出口側、あ
るいは電磁弁８Ａ〜８Ｃが冷媒蒸発器の冷媒入口
側に接続される場合には冷媒蒸発器の出口側にそ
れぞれ設けても良い。第３図ではすべての商品収
納室に電熱ヒータを設置してホツトアンドコール
ドタイプとしているが、電熱ヒータの無いコール
ドタイプであつても動作は同じである。 Although the present invention has been described above by way of example, the present invention can be modified in various ways. In other words, it is clear that the principle is the same even if there are two or four or more product storage chambers. Further, the solenoid valves 8A to 8C may be connected to the refrigerant inlet side of the refrigerant evaporator, the accumulator 9 may be connected to the outlet side of the solenoid valves 8A to 8C, or the solenoid valves 8A to 8C may be connected to the refrigerant inlet side of the refrigerant evaporator. When connected to the refrigerant evaporator, they may be provided on the outlet side of the refrigerant evaporator. In FIG. 3, electric heaters are installed in all product storage rooms to make it a hot and cold type, but the operation is the same even if it is a cold type without electric heaters.
以上の様に本考案は、複数の商品収納室を有す
る自動販売機において、商品収納室内の各冷媒蒸
発器の運転・停止の区別、また商品収納室各々の
容積、冷却負荷の大小に関係無く冷媒循環量は常
に一定で、コンデンシングユニツトの凝縮圧力・
蒸発圧力を一定にし、常に安定した冷却性能を発
揮することができる。
As described above, the present invention is applicable to vending machines having multiple product storage chambers, regardless of whether the refrigerant evaporators in the product storage chambers are operated or stopped, and regardless of the volume of each product storage chamber or the size of the cooling load. The refrigerant circulation amount is always constant, and the condensing pressure of the condensing unit
By keeping the evaporation pressure constant, stable cooling performance can be achieved at all times.
第１図は本考案の要部をなす冷却回路の一例を
示した図、第２図は第１図の冷却回路の動作を説
明する回路図、第３図は本考案が適用される自動
販売機本体内の構造図、第４図は従来の冷却回路
の一例を示した図、第５図は第４図の冷却回路の
動作を説明する回路図。
図中、２Ａ〜２Ｃは冷媒蒸発器、４は冷媒圧縮
機、６は冷媒凝縮器、７，７Ａ〜７Ｃはキヤピラ
リチユーブ、８Ａ〜８Ｃは電磁弁、９はアキユム
レータ。
Figure 1 is a diagram showing an example of the cooling circuit that forms the main part of the present invention, Figure 2 is a circuit diagram explaining the operation of the cooling circuit in Figure 1, and Figure 3 is a vending machine to which the present invention is applied. FIG. 4 is a diagram showing an example of a conventional cooling circuit, and FIG. 5 is a circuit diagram explaining the operation of the cooling circuit shown in FIG. 4. In the figure, 2A to 2C are refrigerant evaporators, 4 is a refrigerant compressor, 6 is a refrigerant condenser, 7 and 7A to 7C are capillary tubes, 8A to 8C are solenoid valves, and 9 is an accumulator.
Claims (1)
納室には冷媒蒸発器を設置すると共に、少なくと
も１つの前記商品収納室にヒータを設置して冷
却、加温運転の切り換えによりコールド商品、ホ
ツト商品を販売可能にした自動販売機において、
前記冷媒蒸発器にそれぞれ電磁弁を直列接続する
と共に、該冷媒蒸発器と電磁弁との直列回路をそ
れぞれ互いに並列に接続し、該並列接続部の冷媒
入口側には冷媒膨張器としてのキヤピラリチユー
ブを接続し、前記並列接続部の冷媒出口側には余
剰冷媒液を蓄積可能なアキユムレータを接続した
ことを特徴とする自動販売機の冷却回路。 It has three or more independent product storage rooms, and a refrigerant evaporator is installed in each product storage room, and a heater is installed in at least one of the product storage rooms to switch between cooling and heating operation to produce cold products. In vending machines that can sell hot products,
A solenoid valve is connected in series to each of the refrigerant evaporators, and a series circuit of the refrigerant evaporator and the solenoid valve is connected in parallel to each other, and a capillary as a refrigerant expander is connected to the refrigerant inlet side of the parallel connection. A cooling circuit for a vending machine, characterized in that a tube is connected to the refrigerant outlet side of the parallel connection part, and an accumulator capable of accumulating surplus refrigerant liquid is connected to the refrigerant outlet side of the parallel connection part.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986058256U JPH0537336Y2 (en) | 1986-04-19 | 1986-04-19 | |
| GB08709261A GB2190180A (en) | 1986-04-19 | 1987-04-16 | Refrigeration apparatus |
| KR2019870005752U KR920000708Y1 (en) | 1986-04-19 | 1987-04-20 | Circulation rotation for vending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986058256U JPH0537336Y2 (en) | 1986-04-19 | 1986-04-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62169883U JPS62169883U (en) | 1987-10-28 |
| JPH0537336Y2 true JPH0537336Y2 (en) | 1993-09-21 |
Family
ID=13079067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986058256U Expired - Lifetime JPH0537336Y2 (en) | 1986-04-19 | 1986-04-19 |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH0537336Y2 (en) |
| KR (1) | KR920000708Y1 (en) |
| GB (1) | GB2190180A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0716221Y2 (en) * | 1986-08-04 | 1995-04-12 | 松下冷機株式会社 | Vending machine cooling system |
| KR100333913B1 (en) * | 2000-06-26 | 2002-04-22 | 이충전 | A cooling apparatus of vending mechine |
| KR100386480B1 (en) * | 2001-07-07 | 2003-06-09 | 백명기 | vending mechine of the hotle having a refrigeration function respectively and control method thereof |
| KR100798067B1 (en) * | 2001-11-27 | 2008-01-28 | 주식회사 포스코 | Drop ore auto collecting device in belt conveyor |
| GB2405688A (en) * | 2003-09-05 | 2005-03-09 | Applied Design & Eng Ltd | Refrigerator |
| WO2008151629A1 (en) * | 2007-06-12 | 2008-12-18 | Danfoss A/S | A method for controlling a refrigerant distribution |
| JP6408262B2 (en) * | 2014-06-13 | 2018-10-17 | サンデンホールディングス株式会社 | vending machine |
| CA3070836A1 (en) * | 2017-07-23 | 2019-01-31 | Zuta-Core Ltd. | Systems and methods for heat exchange |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS553260B2 (en) * | 1973-05-10 | 1980-01-24 | ||
| JPS5614967B2 (en) * | 1972-11-27 | 1981-04-07 | ||
| JPS59167667A (en) * | 1983-03-14 | 1984-09-21 | 松下冷機株式会社 | Cold storage and hot storage changeover type storehouse |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1479763B1 (en) * | 1964-02-27 | 1972-02-03 | Tinnerman George A | Method for cooling the molded parts of molding or casting machines for processing thermoplastic material |
| JPS553260U (en) * | 1978-06-23 | 1980-01-10 | ||
| JPS6234204Y2 (en) * | 1979-07-13 | 1987-09-01 |
-
1986
- 1986-04-19 JP JP1986058256U patent/JPH0537336Y2/ja not_active Expired - Lifetime
-
1987
- 1987-04-16 GB GB08709261A patent/GB2190180A/en not_active Withdrawn
- 1987-04-20 KR KR2019870005752U patent/KR920000708Y1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614967B2 (en) * | 1972-11-27 | 1981-04-07 | ||
| JPS553260B2 (en) * | 1973-05-10 | 1980-01-24 | ||
| JPS59167667A (en) * | 1983-03-14 | 1984-09-21 | 松下冷機株式会社 | Cold storage and hot storage changeover type storehouse |
Also Published As
| Publication number | Publication date |
|---|---|
| KR920000708Y1 (en) | 1992-01-20 |
| GB8709261D0 (en) | 1987-05-20 |
| GB2190180A (en) | 1987-11-11 |
| KR870017096U (en) | 1987-11-30 |
| JPS62169883U (en) | 1987-10-28 |
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