JP2586185B2 - Control device for cold air circulation type open showcase - Google Patents
Control device for cold air circulation type open showcaseInfo
- Publication number
- JP2586185B2 JP2586185B2 JP2178911A JP17891190A JP2586185B2 JP 2586185 B2 JP2586185 B2 JP 2586185B2 JP 2178911 A JP2178911 A JP 2178911A JP 17891190 A JP17891190 A JP 17891190A JP 2586185 B2 JP2586185 B2 JP 2586185B2
- Authority
- JP
- Japan
- Prior art keywords
- control device
- open showcase
- air circulation
- defrost
- circulation type
- 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
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Defrosting Systems (AREA)
- Control Of Temperature (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は、温度、除霜調節を、照明装置を遮断した
ときにのみ行うことができるようにする冷気循環式オー
プンショーケースの制御装置に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a cold air circulation type open showcase that enables temperature and defrost adjustment to be performed only when a lighting device is shut off. .
［従来の技術］ この種のオープンショーケースでは温度調節装置およ
び除霜装置に対する悪戯によって設定値の変更の事例が
あり、そのため防止対策としては、操作部にカバーを設
置したり、また操作部を容易に操作できない部位に配設
するなどの手段が取られていた。[Prior art] In this type of open showcase, there is a case where a set value is changed due to mischief of a temperature control device and a defrosting device. Means have been taken, such as disposing them in places that cannot be easily operated.
［発明が解決しようとする課題］ ところがこのような従来の手段では何れも通常設定操
作が甚だ難しいという問題があった。[Problems to be Solved by the Invention] However, such conventional means have a problem that the normal setting operation is extremely difficult.
この発明は、上記の問題を除去し、比較的簡単な装置
で悪戯を防止できる冷気循環式オープンショーケースの
制御装置を提供することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the above-mentioned problems and to provide a control device for a cold air circulation type open showcase which can prevent mischief with a relatively simple device.
［課題を解決するための手段］ この発明は、第１図に示すように、冷気循環式オープ
ンショーケースにおいて、蛍光灯用の照明スイッチを遮
断したときのみ温度設定値および除霜設定値の変更を可
能とする制御装置を備えるものとする。[Means for Solving the Problems] As shown in FIG. 1, in the present invention, the temperature set value and the defrost set value are changed only when a lighting switch for a fluorescent lamp is shut off in a cold air circulation type open showcase. It is assumed that a control device capable of performing the above is provided.
［作用］ この発明によれば、ケース照明スイッチがONされ蛍光
灯を点灯したという信号を受理して制御装置で温度設定
器と除霜設定器からの設定値とを記憶させ、この記憶デ
ータで運転する。このときすなわち店舗開店時温度設定
器や除霜設定器を仮に悪戯して操作しても冷却運転、除
霜運転の状態は変化しない。[Operation] According to the present invention, a signal that the case lighting switch is turned on and the fluorescent lamp is turned on is received, and the control device stores the set values from the temperature setter and the defrost setter. drive. At this time, that is, even if the temperature setting device and the defrost setting device at the time of opening the store are mischievously operated, the state of the cooling operation and the defrosting operation does not change.
次にケース照明スイッチがOFFされると、制御装置は
温度設定器や除霜設定器からの信号を入力してこの温度
設定器や除霜設定器の設定値に従い冷却、除霜運転を行
う。このとき温度、除霜設定の変更は可能となる。Next, when the case lighting switch is turned off, the control device inputs a signal from the temperature setting device or the defrost setting device, and performs the cooling and defrosting operation according to the set values of the temperature setting device or the defrost setting device. At this time, the temperature and the defrost setting can be changed.
［実施例］ 第１図はこの発明の制御装置の実施例を示す回路図、
第２図はこの装置を有するオープンショーケースの縦断
面図、第３図はショーケースに取付けた温度設定器を示
す正面図である。FIG. 1 is a circuit diagram showing an embodiment of a control device according to the present invention.
FIG. 2 is a longitudinal sectional view of an open showcase having this device, and FIG. 3 is a front view showing a temperature setting device attached to the showcase.
第１図、第２図および第３図において、１は照明用の
蛍光灯、２はケース照明スイッチ、３はオープンショー
ケースを制御する制御装置、４は制御装置４内でデータ
の演算をするCPU、５はデータの記憶をする記憶装置、
６はデジタル式温度設定器、７はケース照明スイッチ２
の電圧信号を制御装置３に伝える信号線、８は温度設定
器、９は除霜の時刻やサイクルを設定する除霜設定器、
10は冷却器、11は制御装置３用の電源装置である。1, 2 and 3, 1 is a fluorescent lamp for illumination, 2 is a case lighting switch, 3 is a control device for controlling an open showcase, and 4 is a data arithmetic unit in the control device 4. CPU, 5 is a storage device for storing data,
6 is a digital temperature setting device, 7 is a case lighting switch 2
A signal line for transmitting the voltage signal to the controller 3; 8, a temperature setting device; 9, a defrost setting device for setting the time and cycle of defrost;
Reference numeral 10 denotes a cooler, and 11 denotes a power supply device for the control device 3.
このような構成において、交流電源が供給されている
と制御装置３は動作し図示しない温度センサからの信号
Ｔと温度設定器６の指令値と比較して図示しないコンプ
レッサを運転する指令Ｓを出力し冷却動作をする。温度
の調節は温度設定器６の設定に、除霜は除霜設定器９の
設定に基づき行われる。そしていまケース照明スイッチ
２をONすると信号線７で制御装置３に電圧が入力され蛍
光灯１が点灯したことが通知される。このとき制御装置
３において温度設定器６からの設定値と除霜設定器９の
設定値とを記憶装置５に収納し保持し記憶させる。そし
て制御装置３はこの記憶データに基づき冷却運転を行
う。冷却運転は記憶装置５のデータに基づき行われてい
るので、温度設定器６や除霜設定器９を仮に悪戯して操
作しても冷却運転、除霜運転の状態は変化しない。In such a configuration, when AC power is supplied, the control device 3 operates and outputs a command S for operating a compressor (not shown) by comparing a signal T from a temperature sensor (not shown) with a command value of the temperature setting device 6. And perform the cooling operation. The temperature is adjusted based on the setting of the temperature setting device 6, and the defrost is performed based on the setting of the defrost setting device 9. Then, when the case lighting switch 2 is turned on, a voltage is input to the control device 3 via the signal line 7 to notify that the fluorescent lamp 1 is turned on. At this time, the control device 3 stores the set value from the temperature setter 6 and the set value of the defrost setter 9 in the storage device 5 for holding and storing. Then, the control device 3 performs a cooling operation based on the stored data. Since the cooling operation is performed based on the data in the storage device 5, the state of the cooling operation and the state of the defrosting operation do not change even if the temperature setting device 6 and the defrosting setting device 9 are mischievously operated.
ついでケース照明スイッチ２をOFFすると、制御装置
３に信号線７から電圧が入力され蛍光灯１が消灯したこ
とが通知され制御装置３は温度設定器６や除霜設定器９
からの信号を入力してこの温度設定器６や除霜設定器９
の設定値に従い冷却、除霜運転を行う。このとき温度、
除霜設定の変更は可能となる。Then, when the case lighting switch 2 is turned off, a voltage is input to the control device 3 from the signal line 7 and the fact that the fluorescent lamp 1 is turned off is notified, and the control device 3 sets the temperature setting device 6 and the defrost setting device 9
The temperature setting device 6 and the defrost setting device 9
Cooling and defrosting operation are performed according to the set value of. At this time,
The defrost setting can be changed.
［発明の効果］ この発明によれば、ケース照明スイッチのON,OFFに従
い温度と沿霜の設定変更を可能としたので、蛍光灯の点
灯時すなわち店舗開店時に悪戯されても設定値が変わる
ことがなくなり、また特に別個に装置を設けることなく
比較的簡単な装置で悪戯を防止できる。[Effects of the Invention] According to the present invention, the temperature and the frost setting can be changed according to the ON / OFF of the case lighting switch. In addition, mischief can be prevented with a relatively simple device without providing a separate device.
第１図はこの発明の制御装置の実施例を示す回路図、第
２図はこの装置を有するオープンショーケースの縦断面
図、第３図はショーケースに取付けた温度設定器を示す
正面図である。 １……蛍光灯、２……ケース照明スイッチ、３……制御
装置、４……CPU、５……記憶装置、６……温度設定
器、７……信号線、９……除霜設定器。FIG. 1 is a circuit diagram showing an embodiment of a control device of the present invention, FIG. 2 is a longitudinal sectional view of an open showcase having the device, and FIG. 3 is a front view showing a temperature setting device attached to the showcase. is there. DESCRIPTION OF SYMBOLS 1 ... Fluorescent lamp, 2 ... Case lighting switch, 3 ... Control device, 4 ... CPU, 5 ... Storage device, 6 ... Temperature setting device, 7 ... Signal line, 9 ... Defrosting setting device .
Claims (1)
て、蛍光灯用の照明スイッチを遮断したときのみ温度設
定値および除霜設定値の変更を可能とする制御装置を備
えたことを特徴とする冷気循環式オープンショーケース
の制御装置。1. A cool air circulation type open showcase, comprising a control device capable of changing a temperature set value and a defrost set value only when an illumination switch for a fluorescent lamp is turned off. Control device for open showcase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2178911A JP2586185B2 (en) | 1990-07-06 | 1990-07-06 | Control device for cold air circulation type open showcase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2178911A JP2586185B2 (en) | 1990-07-06 | 1990-07-06 | Control device for cold air circulation type open showcase |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0468277A JPH0468277A (en) | 1992-03-04 |
| JP2586185B2 true JP2586185B2 (en) | 1997-02-26 |
Family
ID=16056827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2178911A Expired - Lifetime JP2586185B2 (en) | 1990-07-06 | 1990-07-06 | Control device for cold air circulation type open showcase |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2586185B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4960120B2 (en) * | 2007-03-09 | 2012-06-27 | 株式会社鷺宮製作所 | Electronic controller for cooling device and centralized monitoring system |
-
1990
- 1990-07-06 JP JP2178911A patent/JP2586185B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0468277A (en) | 1992-03-04 |
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