JPS63238382A - Cooling device for automatic vending machine - Google Patents
Cooling device for automatic vending machineInfo
- Publication number
- JPS63238382A JPS63238382A JP6845187A JP6845187A JPS63238382A JP S63238382 A JPS63238382 A JP S63238382A JP 6845187 A JP6845187 A JP 6845187A JP 6845187 A JP6845187 A JP 6845187A JP S63238382 A JPS63238382 A JP S63238382A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- temperature
- vending machine
- compressor
- cooling device
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims description 40
- 238000010586 diagram Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 210000003323 beak Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Defrosting Systems (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は圧縮機と凝縮器用ファンモータを有する自動販
売機の冷却装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cooling device for a vending machine having a compressor and a condenser fan motor.
従来の技術
近年、自動販売機の多様化に伴ない、１年中季節を問わ
ず、温蔵室と冷蔵室が併用され、冬場でも冷蔵室内の冷
えた商品の需要が増えている。又設置場所による商品の
需要の差が大きくなっている。Conventional Technology In recent years, with the diversification of vending machines, both greenhouses and refrigerators are used throughout the year, regardless of the season, and the demand for cold products in the refrigerator is increasing even in winter. Moreover, the difference in demand for products depending on the installation location is increasing.
以下図面を参照にしながら従来この種の自動販売機の冷
却装置の一例について説明する。An example of a conventional cooling device for a vending machine of this type will be described below with reference to the drawings.
第５図は中央断面図で示された従来の自動販売機の冷却
装置で、第６図は前記冷却装置の電気回路図、第７図は
前記冷却装置の冷却システムヶ示すものである。第５図
、第６図、第７図において、１は断熱壁を有する本体、
２は断熱材で前記本体１と冷蔵室３を形成している。前
記本体１の下部には圧縮機４、凝縮器５と前記凝縮器用
ファンモータ６を、前記冷蔵室３の下部には蒸発器７と
前記蒸発器７の側面の温度センサー８と庫内ファンモー
タ９と、前記凝縮器６と前記蒸発器７の間にはキャピラ
リチューブ１０を配置し冷却装置を構成している。FIG. 5 shows a conventional cooling device for a vending machine shown in a central sectional view, FIG. 6 shows an electric circuit diagram of the cooling device, and FIG. 7 shows a cooling system of the cooling device. In FIG. 5, FIG. 6, and FIG. 7, 1 is a main body having a heat insulating wall;
Reference numeral 2 is a heat insulating material that forms a refrigerator compartment 3 with the main body 1. A compressor 4, a condenser 5, and a condenser fan motor 6 are installed at the bottom of the main body 1, and an evaporator 7, a temperature sensor 8 on the side of the evaporator 7, and an internal fan motor are installed at the bottom of the refrigerator compartment 3. 9, a capillary tube 10 is arranged between the condenser 6 and the evaporator 7 to constitute a cooling device.
以上のように構成された自動販売機の冷却装置について
以下にその動作を説明する。The operation of the vending machine cooling device configured as described above will be described below.
圧縮機４を出た高圧ガスは、凝縮器用ファンモータ６を
有する凝縮器５で冷却され、さらにキャピラリチューブ
１０で減圧されて、庫内ファンモータ９を有する蒸発器
７に入り、冷蔵室３を冷却するが、蒸発器７の側面に取
り付けられた温度センサー８が、あらかじめ設定された
温度に達すると、接点を開閉して、圧縮機４、凝縮器用
ファンモータ６を、運転あるいは停止させて、冷蔵室３
を一定の温度に保つ。The high-pressure gas leaving the compressor 4 is cooled by a condenser 5 having a condenser fan motor 6, is further depressurized by a capillary tube 10, enters an evaporator 7 having an internal fan motor 9, and passes through the refrigerator compartment 3. When the temperature sensor 8 attached to the side of the evaporator 7 reaches a preset temperature, the contacts are opened and closed to operate or stop the compressor 4 and the condenser fan motor 6. Refrigerator room 3
maintain a constant temperature.
発明が解決しようとする問題点
しかしながら上記のような構成では、高外気温時や商品
の販売頻度の激しいところでは蒸発器７が過負荷となる
ため、あらかじめ設定された温度に達せず温度センサー
８がＯＦＦ Ｌないために、オフサイクルデフロスト
の仕様では蒸発器７がデフロストされない。又低外気温
時においては、凝縮器６が凝縮器用ファンモータ６の働
きで必要以上に冷却され過冷却となる。そのために高圧
圧力が必要以上に下がりすぎて、高圧側と低圧側の圧力
差が小さくなり、キャピラリチューブ１０を流れる冷媒
量が極度に少なくなるため、蒸発器７に流れる冷媒量が
少なくなり、冷却不足を生じる。Problems to be Solved by the Invention However, with the above configuration, the evaporator 7 will be overloaded when the outside temperature is high or in places where products are sold frequently, and the temperature sensor 8 will not reach the preset temperature. Since the evaporator 7 is not OFF L, the evaporator 7 is not defrosted according to the off-cycle defrost specifications. Further, when the outside temperature is low, the condenser 6 is cooled more than necessary by the action of the condenser fan motor 6, resulting in supercooling. As a result, the high pressure drops more than necessary, and the pressure difference between the high pressure side and the low pressure side becomes small, and the amount of refrigerant flowing through the capillary tube 10 becomes extremely small, so the amount of refrigerant flowing into the evaporator 7 decreases, and the cooling cause a shortage.
また蒸発器７が冷却されないため、サーモスタット８が
めらかしめ設定された温度に達せず圧縮機４、凝縮様用
ファンモータ６の運転効率が悪くなりオフサイクルデフ
ロストの仕様では蒸発器７がデフロストされないという
問題点を有していた。In addition, since the evaporator 7 is not cooled, the thermostat 8 is not cooled down to reach the set temperature, resulting in poor operating efficiency of the compressor 4 and condensing fan motor 6, and the evaporator 7 is not defrosted according to off-cycle defrost specifications. It had some problems.
本発明は上記問題点を鑑み、冷却システムの効率向上を
計り、販売頻度の激しいところや高外気温時の冷却不足
とデフロスト不良又低外気温時の冷却不足とデフロスト
不良を解消する自動販売機の冷却装置を提供するもので
ある。In view of the above-mentioned problems, the present invention aims to improve the efficiency of the cooling system, and solves the problem of insufficient cooling and defrosting in places with frequent sales and high outside temperatures, as well as insufficient cooling and defrosting at low outside temperatures. This provides a cooling device.
問題点を解決するための手段
上記問題点を解決するために本発明の自動販売機の冷却
装置は、周波数を変えることにより、圧縮機と凝縮器用
ファンモータの回転数を変えるディジタル制御形の周波
数変換装置と、冷却システムの高圧側の温度を温度セン
サーを用いて測定し、その温度に基づいて前記周波数変
換装置に周波数設定信号を与える制御装置を具備したも
のである。Means for Solving the Problems In order to solve the above problems, the vending machine cooling device of the present invention uses a digitally controlled frequency control system that changes the rotational speed of the compressor and condenser fan motors by changing the frequency. The system includes a converter and a control device that measures the temperature on the high-pressure side of the cooling system using a temperature sensor and provides a frequency setting signal to the frequency converter based on the temperature.
作 用
本発明は上記した構成によって、冷却システムの高圧側
の温度センサーによる信号を制御装置を用い、高圧側の
温度を複数のゾーンに分け、各々のゾーンに対応する周
波数をディジタル制御形の周波数変換装置により発生さ
せ、圧縮機、凝縮器用ファンモータを運転し、必要に応
じた冷却運転を行うものである。According to the above-described configuration, the present invention uses a control device to divide the temperature of the high pressure side into a plurality of zones by using a control device to divide the signal from the temperature sensor on the high pressure side of the cooling system, and the frequency corresponding to each zone is controlled by a digitally controlled frequency. It is generated by a converter, operates the compressor and condenser fan motor, and performs cooling operation as required.
実施例
以下に本発明の一実施例の自動販売機の冷却装置につい
て、図面を参照にしながら説明するが、従来と同一構造
については同一番号を付してその詳細な説明を省略する
。Embodiment A cooling device for a vending machine according to an embodiment of the present invention will be described below with reference to the drawings. Structures that are the same as those of the prior art will be given the same reference numerals and detailed explanations thereof will be omitted.
第１図は本発明による中央断面図で示した自動販売機の
冷却装置でろり、１１は温度センサーで凝縮器６の出口
付近に取り付けられている。第２図は本発明による自動
販売機の冷却装置の電気回路図でｂす、１２は周波数変
換装置で、圧縮機４、凝縮器用ファンモータ６と直列に
結ばれている。FIG. 1 shows a cooling device of a vending machine according to the present invention shown in a central sectional view, and 11 is a temperature sensor installed near the outlet of the condenser 6. FIG. 2 is an electrical circuit diagram of a cooling device for a vending machine according to the present invention. Reference numeral 12 denotes a frequency conversion device, which is connected in series with a compressor 4 and a condenser fan motor 6.
第３図は本発明の自動販売機の冷却装置の冷却システム
図で、温度センサー１１が凝縮器６の出口付近に設置さ
れている。第４図は本考案による自動販売機の冷却装置
のブロック線図で、電源が１３、整流回路が１４、マイ
コンで構成された制御装置が１５、操作部が１６、表示
部が１７である。FIG. 3 is a cooling system diagram of the vending machine cooling device of the present invention, in which a temperature sensor 11 is installed near the outlet of the condenser 6. FIG. 4 is a block diagram of a cooling device for a vending machine according to the present invention, in which 13 is a power supply, 14 is a rectifier circuit, 15 is a control device composed of a microcomputer, 16 is an operating section, and 17 is a display section.
以上のように構成された自動販売機の冷却装置について
、以下にその動作を説明する。The operation of the vending machine cooling device configured as described above will be described below.
第４図において、電源１３の交流電圧が整流回路１４に
よって直流に換えられ周波数変換装置１２に加えられる
。この周波数変換装置１２は制御装置１６のディジタル
信号によって出力周波数を連続的に可変して、圧縮機４
、凝縮器用ファンモータ６の回転数を変化させる。−力
制御装置１６は温度センサー１１の温度データをマイコ
ンの入力として導き、操作部１６よりの温度設定条件あ
るいは、あらかじめ設定されたプログラムに基づき、論
理演算処理をして、周波数変換装置１２に周波数設定信
号を与え、表示部１７に各部の状態を必要な限９表示さ
せる。次に温度センサー１１による温度と、圧縮機、凝
縮器用ファンモータに与えられる周波数の関係の一例を
表に示す。In FIG. 4, the alternating current voltage of the power source 13 is converted into direct current by the rectifier circuit 14 and applied to the frequency converter 12. In FIG. This frequency conversion device 12 continuously varies the output frequency according to a digital signal from a control device 16, and converts the compressor 4
, the rotation speed of the condenser fan motor 6 is changed. - The force control device 16 leads the temperature data of the temperature sensor 11 as input to the microcomputer, performs logical operation processing based on the temperature setting conditions from the operation unit 16 or a preset program, and outputs the frequency to the frequency conversion device 12. A setting signal is given to display the status of each part on the display section 17 as many times as necessary. Next, an example of the relationship between the temperature measured by the temperature sensor 11 and the frequency given to the compressor and condenser fan motor is shown in a table.
表
本実施例においては凝縮器出口温度に対応して、圧縮機
４、凝縮器用ファンモータ６の能力が定められているた
め冷却システムが効率よく運用され、庫内を迅速かつ効
率よく冷却することができる。Table In this embodiment, the capacity of the compressor 4 and condenser fan motor 6 is determined according to the condenser outlet temperature, so that the cooling system can be operated efficiently and the interior of the refrigerator can be cooled quickly and efficiently. Can be done.
発明の効果
以上のように周波数を変えることにより、圧縮機、凝縮
器用ファンモータの回転数を変えるディジタル制御形の
周波数変換装置と冷却システムの高圧側の温度を測定す
る温度センサーと、その温度に基づいて前記周波数変換
装置に周波数設定信号を与える制御装置を設けることに
より以下の効果が得られる。A digitally controlled frequency converter that changes the rotation speed of the compressor and condenser fan motor by changing the frequency as described above, a temperature sensor that measures the temperature on the high pressure side of the cooling system, and a temperature sensor that measures the temperature on the high pressure side of the cooling system. By providing a control device that provides a frequency setting signal to the frequency conversion device based on the above-mentioned results, the following effects can be obtained.
（ａ） 低外気温時の凝縮器での必要以上の過冷却を
防ぐことにより、蒸発器の年令が解消される。(a) The age of the evaporator is eliminated by preventing excessive supercooling in the condenser at low outside temperatures.
（ｂ） 又蒸発器の年令による冷却不足が解消される
ため、圧縮機の運転効率が良くなり、オフサイクルデク
ロストのときの蒸発器のデフロスト不良が解消される。(b) Furthermore, since insufficient cooling due to the age of the evaporator is eliminated, the operating efficiency of the compressor is improved, and defrost failure of the evaporator during off-cycle defrost is eliminated.
（Ｃ） 高圧側の温度が直接的にデータに入力される
ので安定した冷却運転が行われる。(C) Since the temperature on the high pressure side is directly input into the data, stable cooling operation is performed.
（ｄ） 周波数変換がディジタル系で制御されるため
回路が簡易化でき凝縮器用ファンモータの運転が円滑で
効率的である。(d) Since the frequency conversion is controlled by a digital system, the circuit can be simplified and the operation of the condenser fan motor is smooth and efficient.
（ｅ）高外気温時の冷却不足が解消されるため圧縮機の
運転効率が良くなり、蒸発器のデフロスト不良も解消さ
れる。(e) Insufficient cooling at high outside temperatures is eliminated, which improves the operating efficiency of the compressor and eliminates defrost defects in the evaporator.
（ｆ） 商品の販売頻度の激しい場所の冷却不足が解
消されるため圧縮機の運転効率が良くなり蒸発器のデフ
ロス・ト不良も解消される。(f) The lack of cooling in areas where products are sold frequently is eliminated, which improves compressor operating efficiency and eliminates evaporator defrost problems.
け）庫内冷却のイニシャルプルダウンも早くなる。) Initial pulldown for internal cooling is also faster.
第１図は本発明の実施例における自動販売機の冷却装置
の中央断面図、第２図は第１図の電気回路図、第３図は
第１図の冷却システム図、第４図は第１図のブロック線
図、第５図は従来の自動販売機の冷却システムの中央断
面図、第６図は第６図の電気回路図、第７図は第５図の
冷却システム図である。
６・・・・・・凝縮器用ファンモータ、１１・・・・・
・温度センサー、１２・・・・・・周波数変換装置、１
５・・・・・・制御装置。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名／−
−一本林
４− 圧縮機
７−−−、ψ発巻
６−−−−Ａ）ｔヤ）サー
４−工縮磯
第 ２ 図
１−−一湯υ嘴１１用ファン七−タδ−−−
幻でンナー
／２−７１！表教皮虎茅１
７−−−第１力用フ７ンモーク
第４図
！・一本体
Ｚ−一一逝瀬肘
第５図 ３−冷載室
４− 工種−
５−２濾券
１−−一ン疑！１朱用ファ〉七−タ
７−・、！、！慶、
第６図
第７図Fig. 1 is a central sectional view of a cooling device for a vending machine according to an embodiment of the present invention, Fig. 2 is an electric circuit diagram of Fig. 1, Fig. 3 is a diagram of the cooling system of Fig. 1, and Fig. 4 is a diagram of the cooling system of Fig. 1. 1 is a block diagram, FIG. 5 is a central sectional view of a conventional vending machine cooling system, FIG. 6 is an electric circuit diagram of FIG. 6, and FIG. 7 is a cooling system diagram of FIG. 5. 6...Fan motor for condenser, 11...
・Temperature sensor, 12... Frequency converter, 1
5...Control device. Name of agent: Patent attorney Toshio Nakao and 1 other person/-
- Ipponbayashi 4 - Compressor 7 ---, ψ winding 6 --- A) t Y) Sir 4 - Construction site No. 2
1--Fan 7-tater δ for one hot water υ beak 11---
Phantom Dennner/2-71! Omotekyoupi Torahaya 1 7---The 4th figure of the first power use Fun7nmoke!・One body Z-11 Closed elbow Fig. 5 3-Cold storage room 4- Type of work- 5-2 Filter ticket 1--1 suspicion! 1 Vermilion Fa〉7-ta7-...! ,! Kei, Figure 6 Figure 7
Claims (1)
ータの回転数を変えるディジタル制御形の周波数変換装
置と、冷却システムの高圧側の温度を温度センサーを用
いて測定し、前記温度センサーによる温度に基づいて前
記周波数変換装置に周波数設定信号を与える制御装置と
を具備し、前記温度センサーによる温度があらかじめ設
定された値に応じて、高いときは大きい周波数を与え、
低いときは小さい周波数を与えることによって、圧縮機
と凝縮器用ファンモータの回転数を変えることを特徴と
する自動販売機の冷却装置。A digitally controlled frequency converter that changes the rotation speed of the compressor and condenser fan motor by changing the frequency, and a temperature sensor that measures the temperature on the high pressure side of the cooling system, and based on the temperature measured by the temperature sensor. and a control device that gives a frequency setting signal to the frequency converter, and when the temperature measured by the temperature sensor is high according to a preset value, a high frequency is given,
A cooling device for a vending machine characterized by changing the rotation speed of a compressor and a condenser fan motor by applying a small frequency when the frequency is low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6845187A JPS63238382A (en) | 1987-03-23 | 1987-03-23 | Cooling device for automatic vending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6845187A JPS63238382A (en) | 1987-03-23 | 1987-03-23 | Cooling device for automatic vending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63238382A true JPS63238382A (en) | 1988-10-04 |
Family
ID=13374077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6845187A Pending JPS63238382A (en) | 1987-03-23 | 1987-03-23 | Cooling device for automatic vending machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63238382A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02128076U (en) * | 1989-03-28 | 1990-10-22 | ||
| JP2009245192A (en) * | 2008-03-31 | 2009-10-22 | Fuji Electric Retail Systems Co Ltd | Vending machine |
| JP2012520795A (en) * | 2009-03-20 | 2012-09-10 | アクサ パワー アンパーツゼルスカブ | Pre-adjustable air unit with self-contained cooling module |
| JP2012520796A (en) * | 2009-03-20 | 2012-09-10 | アクサ パワー アンパーツゼルスカブ | Pre-adjustable air unit with variable frequency drive |
-
1987
- 1987-03-23 JP JP6845187A patent/JPS63238382A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02128076U (en) * | 1989-03-28 | 1990-10-22 | ||
| JP2009245192A (en) * | 2008-03-31 | 2009-10-22 | Fuji Electric Retail Systems Co Ltd | Vending machine |
| JP2012520795A (en) * | 2009-03-20 | 2012-09-10 | アクサ パワー アンパーツゼルスカブ | Pre-adjustable air unit with self-contained cooling module |
| JP2012520796A (en) * | 2009-03-20 | 2012-09-10 | アクサ パワー アンパーツゼルスカブ | Pre-adjustable air unit with variable frequency drive |
| US9771169B2 (en) | 2009-03-20 | 2017-09-26 | Axa Power Aps | Preconditioned air unit with variable frequency driving |
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