JPH0468277A - Method of controlling cold-air circulation type open show case - Google Patents
Method of controlling cold-air circulation type open show caseInfo
- Publication number
- JPH0468277A JPH0468277A JP17891190A JP17891190A JPH0468277A JP H0468277 A JPH0468277 A JP H0468277A JP 17891190 A JP17891190 A JP 17891190A JP 17891190 A JP17891190 A JP 17891190A JP H0468277 A JPH0468277 A JP H0468277A
- Authority
- JP
- Japan
- Prior art keywords
- defrosting
- temperature
- setter
- controller
- turned
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title description 2
- 238000010257 thawing Methods 0.000 abstract description 23
- 238000001816 cooling Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Defrosting Systems (AREA)
- Control Of Temperature (AREA)
Abstract
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１１調節を、照明装置を遮断した
とき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。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a control device for a cold air circulation type open showcase that allows temperature 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 have been cases where the temperature control device and defrosting device have been tampered with and the set values have been changed, so preventive measures include installing a cover over the operation section or closing the operation section. Measures were taken such as placing the device in a location that cannot be easily accessed.
［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時設定操
作が甚だ難しいという問題があった。[Problems to be Solved by the Invention] However, all of these conventional means have a problem in 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ＷＪ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。An object of the present invention is to provide a control device for a cold air WJ ring-type open showcase that can eliminate the above-mentioned problems and prevent mischief with a relatively simple device.
［課題を解決するための１段コ
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。[One-step method for solving the problem] As shown in Fig. 1, this invention, in a cold air circulation type open showcase, sets the temperature set value and defrost set value only when the light switch for the fluorescent lamp is shut off. It shall be equipped with a control device that allows changes.
［作用］
この発明によれば、ケースｊＫ１明スイッーチが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。[Function] According to the present invention, upon receiving a signal indicating that the case jK1 light switch is turned on and the fluorescent lamp is turned on, the control device stores the setting values from the temperature setting device and the defrosting setting device, and stores this stored data. drive with At this time, that is, when the store opens, even if the temperature setting device or the defrosting setting device is manipulated in a malicious manner, the states of the cooling operation and the defrosting operation will 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人力してこの温度
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 manually receives signals from the temperature setting device and the defrosting setting device and performs cooling and defrosting operations according to the set values of the temperature setting device and the defrosting setting device. At this time, it is possible to change the temperature and defrost settings.
［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。[Example] Fig. 1 is a circuit diagram showing an embodiment of the control device of the present invention, Fig. 2 is a vertical sectional view of an open showcase equipped with this device, and Fig. 3 is a diagram showing a temperature setting device attached to the showcase. FIG.
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は温度表示
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。In FIGS. 1, 2, and 3, 1 is a fluorescent lamp for illumination, 2 is a case lighting switch, 3 is a control device that controls the open showcase, and 4 is a data calculation unit within the control device 4. CPU, 5 is a storage device that stores data;
6 is a digital temperature setting device, 7 is a case light switch 2
8 is a temperature display, 9 is a defrost setting device for setting the defrosting time and cycle,
10 is a cooler, and 11 is 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に電圧が人力され蛍
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′ＪＩ
１９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 signal T from a temperature sensor (not shown).
It compares this with the command value of the temperature setting device 6 and outputs a command S to operate a compressor (not shown) to perform a cooling operation. Temperature adjustment is performed based on the settings of the temperature setting device 6, and defrosting is performed based on the settings of the defrost setting device 9. And now case light switch 2
When turned on, the signal line 7 notifies the control device 3 that voltage is applied manually and the fluorescent lamp 1 is turned on. At this time, in the control device 3, the setting value from the temperature setting device 6 and the defrosting setting 'JI
The setting values of 19 are stored in the storage device 5, held, and stored. The control device 3 then performs a cooling operation based on this stored data. Since the cooling operation is performed based on the data in the storage device 5, the states of the cooling operation and the defrosting operation will not change even if the temperature setting device 6 or the defrosting setting device 9 is manipulated in a malicious manner.
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から電圧が人力され蛍光灯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
からの信号を大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。Next, when the case lighting switch 2 is turned OFF, a voltage is manually applied from the signal line 7 to the control device 3, which is notified that the fluorescent lamp 1 is turned off, and the control device 3 turns on the temperature setting device 6 and the defrosting setting device 9.
The temperature setting device 6 and the defrosting setting device 9 are
Cooling and defrosting operations are performed according to the set values. At this time, the temperature
Defrost settings 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。[Effect of the invention] According to this invention, the case lighting switch is turned on.
ＯＦＦに従い温度と除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。Since it is possible to change the temperature and defrost settings according to OFF,
Even if a prank is committed when the fluorescent lamp is turned on, that is, when the store is opened, the set value will not change, and pranks can be prevented with a relatively simple device without the need for 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図はこの装置を右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
。
第１図Fig. 1 is a circuit diagram showing an embodiment of the control device of the present invention, Fig. 2 is a vertical sectional view of an open showcase to the right of this device, and Fig. 3 is a front view showing a temperature setting device attached to the showcase. It is. 1... Fluorescent light, 2... Case lighting switch, 3...
・Control device, 4...CPU, 5...Storage device, 6.
... Temperature setting device, 7... Signal line, 9... Defrost setting device. Figure 1
Claims (1)
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 cold air circulation type open showcase characterized by being equipped with a control device that makes it possible to change the temperature set value and defrost set value only when the light switch for the fluorescent lamp is shut off. Case control device.
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 true JPH0468277A (en) | 1992-03-04 |
| JP2586185B2 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008224093A (en) * | 2007-03-09 | 2008-09-25 | Saginomiya Seisakusho Inc | Electronic controller for cooling device and centralized monitoring system |
-
1990
- 1990-07-06 JP JP2178911A patent/JP2586185B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008224093A (en) * | 2007-03-09 | 2008-09-25 | Saginomiya Seisakusho Inc | Electronic controller for cooling device and centralized monitoring system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2586185B2 (en) | 1997-02-26 |
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