JP2001099468A - Control unit for refrigerator - Google Patents
Control unit for refrigeratorInfo
- Publication number
- JP2001099468A JP2001099468A JP27880199A JP27880199A JP2001099468A JP 2001099468 A JP2001099468 A JP 2001099468A JP 27880199 A JP27880199 A JP 27880199A JP 27880199 A JP27880199 A JP 27880199A JP 2001099468 A JP2001099468 A JP 2001099468A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerator
- inverter
- pressure
- delay
- digital
- 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
Classifications
-
- 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、インバータ運転と
定格運転可能な冷凍機の制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator control device capable of inverter operation and rated operation.
【０００２】[0002]
【従来の技術】従来のインバータ冷凍機の定格運転（商
用運転とも呼ばれる）制御は、インバータ部故障時のバ
ックアップとして機械式低圧圧力スイッチを取り付け
て、この圧力設定により運転制御を行うものが知られて
いる。2. Description of the Related Art Conventional rated operation (also called commercial operation) control of an inverter refrigerator is known in which a mechanical low-pressure switch is attached as a backup when an inverter unit fails, and operation is controlled by setting this pressure. ing.
【０００３】[0003]
【発明が解決しようとする課題】定格運転時の圧力設定
値は、インバータ運転時の冷却性能確保のため、インバ
ータ運転中に機械式低圧圧力スイッチが不用意にＯＦＦ
しないよう、インバータ運転時に比較してかなり低く設
定する必要があった。よって、インバータ異常時等の商
用連転時に、冷凍機としての運転効率が大幅に低下し、
冷やし過ぎが起きていた。The pressure set value at the time of rated operation is inadvertently turned off during the inverter operation to ensure the cooling performance at the time of inverter operation.
In order to avoid this, it was necessary to set a considerably lower value than when the inverter was operating. Therefore, at the time of commercial rotation such as when the inverter is abnormal, the operating efficiency of the refrigerator is greatly reduced,
Overcooling was happening.
【０００４】本発明は、運転効率が低下しにくい冷凍機
の制御装置を提供するものである。[0004] The present invention provides a control device for a refrigerator in which the operation efficiency does not easily decrease.
【０００５】[0005]
【課題を解決するための手段】本発明は、インバータ運
転と定格運転が可能なインバータ制御冷凍機で、定格運
転中の低圧圧力をデジタルで圧力設定ができるデジタル
圧力設定器を備え、かつその圧力設定によりコンプレッ
サをＯＮ／ＯＦＦさせるように構成したものである。SUMMARY OF THE INVENTION The present invention relates to an inverter controlled refrigerator capable of performing an inverter operation and a rated operation, comprising a digital pressure setter capable of digitally setting a low pressure during a rated operation. The compressor is turned on / off by setting.
【０００６】また、前記ＯＮ／ＯＦＦ時ＯＮ遅延または
ＯＦＦ遅延機能を備えたものである。[0006] Further, the apparatus is provided with an ON / OFF ON delay or OFF delay function.
【０００７】[0007]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づき説明する。Embodiments of the present invention will be described below with reference to the drawings.
【０００８】図４において、コントロ−ラのＸ１は異常
時の保護停止出力で、正常時はＯＮとなっている。Ｘ２
はインバータと商用運転（定格運転）の切替出力で、商
用運転時は商用側がＯＮとなっている。商用連転時の冷
凍能力制御は機械式低圧圧力スイッチ（６３Ｌ）にて行
う。In FIG. 4, X1 of the controller is a protection stop output at the time of abnormality and is ON at the time of normal. X2
Is a switching output between the inverter and commercial operation (rated operation). During commercial operation, the commercial side is ON. Refrigerating capacity control during commercial continuous rotation is performed by a mechanical low pressure switch (63 L).
【０００９】インバータ制御運転中も”６３Ｌ”は設定
圧力により作動ずるため、通常のインバータによる冷却
運転中に作動しない低い圧力に設定されている。よっ
て、コントロ−ラにより商用運転に切り替わった時は、
冷やし過ぎで効率の悪い低い圧力で運転されることにな
る。Since "63L" does not operate during the inverter control operation due to the set pressure, it is set to a low pressure that does not operate during the normal inverter cooling operation. Therefore, when switching to commercial operation by the controller,
It will be operated at low pressure which is too cold and inefficient.
【００１０】図１に示すデジタル式（機械式より精度の
高いデジタル圧力設定器を備えたもの）の場合は、機械
式低圧圧力スイッチの代わりにコントローラの出力Ｘ３
にて冷凍能力制御する。Ｘ３の接点はインバータ運転時
常時開状態であり、インバータ異常または外部からの指
令による商用運転時のみ、Ｘ３の接点により設定した圧
力での制御を行う。よって、圧力設定値は負荷に合った
適正値で設定可能である。尚、デジタル圧力設定器は図
示しない。In the case of the digital type shown in FIG. 1 (having a digital pressure setting device with higher precision than the mechanical type), the output X3 of the controller is used instead of the mechanical low pressure switch.
To control the refrigeration capacity. The contact of X3 is normally open during the inverter operation, and the control at the pressure set by the contact of X3 is performed only during the inverter operation or the commercial operation according to an external command. Therefore, the pressure set value can be set at an appropriate value suitable for the load. The digital pressure setting device is not shown.
【００１１】機械式は図２（１）に示すように圧力値の
みで作動するため、コンプレッサＯＮ／ＯＦＦのショー
トサイクルを発生し易い。これに対し、本発明のデジタ
ル式はショートサイクル防止を遅延時間（図２はＯＮ遅
延の場合）で確保しているため、ＯＦＦ値をエバポレー
タの蒸発温度に合わすことができ、余分なポンプダウン
運転が減少し、省工ネを計ることができる。As shown in FIG. 2A, the mechanical type operates only with the pressure value, so that a short cycle of ON / OFF of the compressor is easily generated. On the other hand, the digital type of the present invention secures the short cycle prevention by the delay time (FIG. 2 shows the case of ON delay), so that the OFF value can be adjusted to the evaporation temperature of the evaporator, and the extra pump down operation is performed. Can be reduced, and labor saving can be achieved.
【００１２】尚、図３はＯＦＦ遅延の場合を示す。FIG. 3 shows the case of the OFF delay.
【００１３】このように構成された本発明の冷凍機の制
御装置では、インバータ故障時等時の圧力値を考慮する
必要がないため、機械式低圧圧力スイッチのように設定
値を低くする必要がなく、蒸発温度の高い運転が可能と
なり、商用連転時でも適正な圧力で運転でき、省エネ効
果の高い冷凍機とすることができる。[0013] In the refrigerator control apparatus of the present invention configured as described above, it is not necessary to consider a pressure value at the time of an inverter failure or the like. Therefore, it is necessary to reduce the set value as in a mechanical low pressure switch. In addition, it is possible to operate at a high evaporation temperature, operate at an appropriate pressure even during continuous commercial rotation, and achieve a refrigerator with high energy saving effect.
【００１４】[0014]
【発明の効果】本発明によれば、インバータ故障時等の
インバータ制御冷凍機の定格運転において、予めデジタ
ル設定器で圧力設定した制御に切り替え、かつその圧力
設定によりコンプレッサをＯＮ／ＯＦＦする。またこの
時に遅延機能をもたせる。この方式によりインバータ運
転時の圧力値を考慮する必要がないため、機械式低圧圧
力スイッチのように設定値を低くする必要がなく、蒸発
温度の高い運転が可能となり、定格連転時でも適正な圧
力で運転でき、省エネ効果の高い冷凍機とすることがで
きる。According to the present invention, in the rated operation of the inverter control refrigerator at the time of inverter failure or the like, the control is switched to the control in which the pressure is previously set by the digital setting device, and the compressor is turned ON / OFF by the pressure setting. At this time, a delay function is provided. With this method, there is no need to consider the pressure value during inverter operation, so there is no need to lower the set value unlike a mechanical low-pressure switch, and operation with a high evaporation temperature becomes possible. The refrigerator can be operated with pressure and has a high energy saving effect.
【図１】本考案のデジタル圧力設定器を備えたインバー
タ冷凍機の操作回路図である。FIG. 1 is an operation circuit diagram of an inverter refrigerator equipped with a digital pressure setting device of the present invention.
【図２】機械式とデジタル式の相違を説明した線図であ
る。FIG. 2 is a diagram illustrating a difference between a mechanical type and a digital type.
【図３】本発明のデジタル式のＯＦＦ遅延を説明した線
図である。FIG. 3 is a diagram illustrating a digital OFF delay of the present invention.
【図４】従来の機械式低圧圧力スイッチを具備したイン
バータ冷凍機の操作回路である。FIG. 4 is an operation circuit of an inverter refrigerator equipped with a conventional mechanical low pressure switch.
Ｘ３ デジタル式低圧圧力スイッチ出力 X3 Digital low pressure switch output
フロントページの続き (72)発明者 山口 勤 大阪府守口市京阪本通２丁目５番５号 三 洋電機株式会社内 Ｆターム(参考） 3L060 AA02 CC16 DD01 EE04 Continued on the front page (72) Inventor Tsutomu Yamaguchi 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. 3L060 AA02 CC16 DD01 EE04
Claims (2)
バータ制御冷凍機で、定格運転中の低圧圧力をデジタル
で圧力設定ができるデジタル圧力設定器を備え、かつそ
の圧力設定によりコンプレッサをＯＮ／ＯＦＦさせるこ
とを特徴とする冷凍機の制御装置。1. An inverter-controlled refrigerator capable of performing inverter operation and rated operation, comprising a digital pressure setter capable of digitally setting a low pressure during rated operation, and turning on / off the compressor according to the pressure setting. A control device for a refrigerator.
Ｆ遅延機能を備えたことを特徴とする請求項１に記載の
冷凍機の制御装置。2. An ON delay or an ON delay at the time of ON / OFF.
The control device for a refrigerator according to claim 1, further comprising an F delay function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27880199A JP2001099468A (en) | 1999-09-30 | 1999-09-30 | Control unit for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27880199A JP2001099468A (en) | 1999-09-30 | 1999-09-30 | Control unit for refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001099468A true JP2001099468A (en) | 2001-04-13 |
Family
ID=17602374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27880199A Pending JP2001099468A (en) | 1999-09-30 | 1999-09-30 | Control unit for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001099468A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2220450A1 (en) * | 2007-11-09 | 2010-08-25 | Carrier Corporation | Transport refrigeration system and method of operation |
| CN111023429A (en) * | 2019-12-27 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Control method and system and air conditioner |
-
1999
- 1999-09-30 JP JP27880199A patent/JP2001099468A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2220450A1 (en) * | 2007-11-09 | 2010-08-25 | Carrier Corporation | Transport refrigeration system and method of operation |
| EP2220450A4 (en) * | 2007-11-09 | 2011-08-10 | Carrier Corp | Transport refrigeration system and method of operation |
| EP2220450B1 (en) | 2007-11-09 | 2015-06-17 | Carrier Corporation | Transport refrigeration system and method of operation |
| EP2220450B2 (en) † | 2007-11-09 | 2022-11-30 | Carrier Corporation | Transport refrigeration system and method of operation |
| CN111023429A (en) * | 2019-12-27 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Control method and system and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RD01 | Notification of change of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7421 Effective date: 20051226 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060509 |
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| A02 | Decision of refusal |
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