JPS58169470U - Refrigerator operation control device - Google Patents

Refrigerator operation control device

Info

Publication number
JPS58169470U
JPS58169470U JP6681482U JP6681482U JPS58169470U JP S58169470 U JPS58169470 U JP S58169470U JP 6681482 U JP6681482 U JP 6681482U JP 6681482 U JP6681482 U JP 6681482U JP S58169470 U JPS58169470 U JP S58169470U
Authority
JP
Japan
Prior art keywords
operation control
control device
pressure
pressure switch
compressor unit
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
Application number
JP6681482U
Other languages
Japanese (ja)
Other versions
JPS6340757Y2 (en
Inventor
亨 梶村
亀谷　伸彦
Original Assignee
富士電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 富士電機株式会社 filed Critical 富士電機株式会社
Priority to JP6681482U priority Critical patent/JPS58169470U/en
Publication of JPS58169470U publication Critical patent/JPS58169470U/en
Application granted granted Critical
Publication of JPS6340757Y2 publication Critical patent/JPS6340757Y2/ja
Granted legal-status Critical Current

Links

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は電子圧力スイッチにより容量制御を行　　　゛
うマルチコンプレッサユニットを採用したオープンショ
ーケース設備の系統図、第２図は従来における電子圧力
スイッチの出力特性を示す制御動作パターン図、第３図
は第２図による冷凍機の運転チャート、第４図および第
５図はこの考案の一実施例を示す電子圧力スイッチの制
御動作パターン図および冷凍機の運転チャートである。 １・・・マルチコンプレッサユニット、２１〜２■・・
・コンプレッサ、９・・・圧力センサ、８・・・電子圧
力スイッチとしてのＣＰＵ、Ｐ６・・・冷却運転時にお
けるコンプレッサ全停止のカットアウト設定値、Ｐ６′
・・・ポンプダウン時におけるコンプレッサ全停止のカ
ットアウト設定値。Figure 1 is a system diagram of an open showcase facility that employs a multi-compressor unit whose capacity is controlled by an electronic pressure switch, Figure 2 is a control operation pattern diagram showing the output characteristics of a conventional electronic pressure switch, and Figure 3 2 is an operation chart of the refrigerator, and FIGS. 4 and 5 are a control operation pattern diagram of an electronic pressure switch and an operation chart of the refrigerator showing an embodiment of this invention. 1...Multi compressor unit, 21~2■...
・Compressor, 9...Pressure sensor, 8...CPU as electronic pressure switch, P6...Cutout setting value for complete stop of compressor during cooling operation, P6'
...Cutout setting value for complete stop of the compressor during pump down.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）互いに並列接続された複数台のコンプレッサから
なるマルチタイプコンプレッサユニットに電子圧力スイ
ッチを備え、コンプレッサユニットの吸入圧力検出値を
入力値として冷却運転時には前記電子圧力スイッチを通
じて各コンプレッサへ選択的に運転制御信号を与えるこ
とにより、冷凍負荷の変動範囲で容量制御を行うように
した冷凍機の運転制御装置において、コンプレッサユニ
ットを全停止させる前記電子圧力スイッチの最小カット
アウト設定値を少なくともポンプダウン運転の必要時に
はポンプダウン圧力に相当する圧力に設定するようにし
たことを特徴とする冷凍機の運転制御装置。(1) A multi-type compressor unit consisting of multiple compressors connected in parallel is equipped with an electronic pressure switch, and the suction pressure detection value of the compressor unit is used as an input value to selectively apply to each compressor through the electronic pressure switch during cooling operation. In a refrigerator operation control device that performs capacity control within a range of fluctuations in refrigeration load by supplying an operation control signal, the minimum cutout setting value of the electronic pressure switch that completely stops the compressor unit is set to at least pump-down operation. An operation control device for a refrigerator, characterized in that the pressure is set to a pressure corresponding to a pump down pressure when necessary. （２）実用新案登録請求の範囲第１項記載の運転制御装
置において、電子圧力スイッチの最小カットアウト設定
値を、通常の冷却運転時には冷凍負荷の変動範囲に合わ
せて設定し、かつポンプダウン指令に基づいて冷却運転
時の設定値からポンプダウン圧力に相当する圧力へ設写
変更するようにした冷凍機の運転制御装置。(2) Utility Model Registration Scope of Claims In the operation control device according to claim 1, the minimum cutout setting value of the electronic pressure switch is set according to the fluctuation range of the refrigeration load during normal cooling operation, and the pump down command is set. A refrigerating machine operation control device that changes the setting from a set value during cooling operation to a pressure corresponding to pump down pressure based on.
JP6681482U 1982-05-08 1982-05-08 Refrigerator operation control device Granted JPS58169470U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6681482U JPS58169470U (en) 1982-05-08 1982-05-08 Refrigerator operation control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6681482U JPS58169470U (en) 1982-05-08 1982-05-08 Refrigerator operation control device

Publications (2)

Publication Number Publication Date
JPS58169470U true JPS58169470U (en) 1983-11-11
JPS6340757Y2 JPS6340757Y2 (en) 1988-10-25

Family

ID=30076663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6681482U Granted JPS58169470U (en) 1982-05-08 1982-05-08 Refrigerator operation control device

Country Status (1)

Country Link
JP (1) JPS58169470U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0220058U (en) * 1988-07-21 1990-02-09
JP5992076B1 (en) * 2015-07-23 2016-09-14 三菱電機株式会社 Refrigeration cycle apparatus, refrigerator equipped with the refrigeration cycle apparatus, and defrosting method for refrigeration cycle apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0220058U (en) * 1988-07-21 1990-02-09
JP5992076B1 (en) * 2015-07-23 2016-09-14 三菱電機株式会社 Refrigeration cycle apparatus, refrigerator equipped with the refrigeration cycle apparatus, and defrosting method for refrigeration cycle apparatus

Also Published As

Publication number Publication date
JPS6340757Y2 (en) 1988-10-25

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