JP3125795B2 - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JP3125795B2 JP3125795B2 JP02308925A JP30892590A JP3125795B2 JP 3125795 B2 JP3125795 B2 JP 3125795B2 JP 02308925 A JP02308925 A JP 02308925A JP 30892590 A JP30892590 A JP 30892590A JP 3125795 B2 JP3125795 B2 JP 3125795B2
- Authority
- JP
- Japan
- Prior art keywords
- expansion valve
- electronic expansion
- air conditioner
- time
- stopped
- 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 - Fee Related
Links
Landscapes
- Air Conditioning Control Device (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は空気調和機の制御装置における膨張弁ゼロリ
セット制御装置に関する。Description: TECHNICAL FIELD The present invention relates to an expansion valve zero reset control device in an air conditioner control device.
〔従来の技術〕 従来の装置は、膨張弁リセット処理は電源投入時に行
なうようになっていた。なお、空調機用電子膨張弁に関
連するものとして、特開平２−133745号公報「空調機の
電動膨張弁制御装置」が挙げられる。[Prior Art] In a conventional apparatus, an expansion valve reset process is performed when power is turned on. Japanese Patent Laid-Open Publication No. 2-133745, entitled "Electric Air Conditioner Electric Expansion Valve Control Apparatus", relates to an electronic expansion valve for an air conditioner.
上記従来技術は電源投入時又は停止時のみのゼロリセ
ット方法であり、連続通電，連続運転する場合について
の考慮がされておらず、万一、開度ずれが生じた場合に
不具合の出る可能性があった。The above-mentioned prior art is a zero reset method only when the power is turned on or stopped, and does not consider the case of continuous energization and continuous operation, and may cause a problem in the event that an opening deviation occurs. was there.
本発明の目的は、連続通電，連続運転時でも空調機の
正常な運転を継続可能とすることにある。An object of the present invention is to enable normal operation of an air conditioner to be continued even during continuous energization and continuous operation.
上記目的を達成するため、本発明は、冷凍サイクルに
その開度が可変とされる電子膨張弁を有する空気調和機
において、運転中のときは、運転積算時間、及び連続運
転時間がそれぞれ一定時間以上となった場合、運転を所
定時間停止し電子膨張弁をリセット処理し、運転停止中
のときは、運転停止までの運転積算時間が一定時間以
上、又はそれまでの停止回数が所定の回数を超えた場
合、電子膨張弁をリセット処理するものである。In order to achieve the above object, the present invention provides an air conditioner having an electronic expansion valve in which a degree of opening is variable in a refrigeration cycle. In the case of the above, the operation is stopped for a predetermined time and the electronic expansion valve is reset. If it exceeds, the electronic expansion valve is reset.
これにより、運転中のときは運転積算時間及び連続運
転時間がそれぞれ一定時間以上となった場合運転を所定
時間停止し、運転停止中のときは運転積算時間が一定時
間以上又はそれまでの停止回数が所定の回数を超えた場
合、電子膨張弁をリセット処理するので、空気調和機の
使用状態、設置環境によりオンオフを繰り返す場合でも
電子膨張弁の開度ずれを修正して正常に運転を継続でき
る。例えば、運転を所定時間停止させた後、運転を再開
することにより室温変化を最小限にすることができる。In this way, when the operation is being performed, the operation is stopped for a predetermined time if the integrated operation time and the continuous operation time are each equal to or longer than a predetermined time, and the operation integration time is equal to or more than the predetermined time or the number of stops until the operation is stopped When the number exceeds a predetermined number, the electronic expansion valve is reset, so that even if the air conditioner is repeatedly turned on and off depending on the use condition and installation environment, the opening deviation of the electronic expansion valve can be corrected and normal operation can be continued. . For example, after the operation is stopped for a predetermined time, the change in the room temperature can be minimized by restarting the operation.
以下、本発明の一実施例を第１図ないし第３図により
説明する。An embodiment of the present invention will be described below with reference to FIGS.
第１図に電子膨張弁駆動回路を示す。マイクロコンピ
ュータ１の出力端子Ａ〜Ｄの出力をトランジスタ２〜５
で増幅し電子膨張弁９のパルスモータコイル6,7を駆動
し弁開度を調節する。FIG. 1 shows an electronic expansion valve drive circuit. The outputs of output terminals A to D of microcomputer 1 are connected to transistors 2 to 5
And the pulse motor coils 6 and 7 of the electronic expansion valve 9 are driven to adjust the valve opening.
第２図に電子膨張弁パルスモータ駆動出力を示す。出
力端子Ａ〜Ｄから、第３図のようにパルス出力すること
により電子膨張弁を開弁、又は、閉弁する。FIG. 2 shows the electronic expansion valve pulse motor drive output. The electronic expansion valve is opened or closed by outputting pulses from the output terminals A to D as shown in FIG.
電子膨張弁ゼロリセット方法は、日立ビル用エアコン
ハイマルチセットフリーサービスマニュアルNo.PAH−88
02に示すように、二千パルス分閉弁し機械的に全閉位置
に設定した後40パルス開弁する。The method of resetting the electronic expansion valve to zero is described in Air Conditioner High Multiset Free Service Manual No.PAH-88 for Hitachi Building.
As shown in 02, the valve is closed for 2,000 pulses, mechanically set to the fully closed position, and then opened for 40 pulses.
電子膨張弁をゼロリセットするか否かを決めるプログ
ラムを第３図に示す。FIG. 3 shows a program for determining whether to reset the electronic expansion valve to zero.
運転中に運転時間の積算値が12時間を越え、かつ、連
続三時間以上運転している場合に、運転を三分間停止
し、電子膨張弁をゼロリセットした後、再運転する。If the integrated value of the operation time exceeds 12 hours during operation and the operation is continued for 3 hours or more, the operation is stopped for 3 minutes, the electronic expansion valve is reset to zero, and then restarted.
運転停止中は、運転停止までの運転時間の積算が12時
間を越えたとき、又は、停止回数が二十五回を越えた場
合に電子膨張弁をゼロリセットする。While the operation is stopped, the electronic expansion valve is reset to zero when the total operation time until the operation is stopped exceeds 12 hours or when the number of stops exceeds 25 times.
また、電源投入直後にも従来通りゼロリセットを実施
する。Also, immediately after power-on, zero reset is performed as before.
本実施例で、運転積算時間12時間，連続運転時間三時
間，停止回数25回は、実施例に使用した電子膨張弁及び
制御用ソフトウェアによる電子膨張弁の開度ずれの可能
性を考慮した値であり、他の電子膨張弁、又は、制御方
法をとった場合は必ずしも同一値である必要はない。In this embodiment, the cumulative operation time is 12 hours, the continuous operation time is 3 hours, and the number of stop times is 25 times. The values are based on the electronic expansion valve used in the embodiment and the possibility of deviation of the opening degree of the electronic expansion valve by the control software. However, when another electronic expansion valve or a control method is adopted, the values need not always be the same.
本発明は、以上説明したように構成されているので以
下に記載されるような効果を奏する。Since the present invention is configured as described above, it has the following effects.
空気調和機の使用状態，設置環境が異なるため数分〜
数十分でオンオフを繰返す環境にある空気調和機に対し
ては、停止回数一定回目毎に電子膨張弁をゼロリセット
できる。また、長時間にわたり運転継続する環境にある
空気調和機に対しては運転時間積算値、及び、連続運転
時間が一定時間以上に達したときに、ゼロリセットでき
る。この運転中にゼロリセットする場合は、一旦、運転
を停止させるため安全にゼロリセット処理ができる。さ
らにこの場合、一旦停止させた後、再運転させる場合に
室温変化を最小限にするために一定時間以上連続運転し
ている定常状態で行なうこととしている。Minutes ~ due to differences in air conditioner usage and installation environment
For an air conditioner in an environment where it repeatedly turns on and off for several tens of minutes, the electronic expansion valve can be reset to zero at every fixed number of stops. In addition, for an air conditioner in an environment where the operation is continued for a long time, the operation time integrated value and the zero reset can be performed when the continuous operation time reaches a certain time or more. When the zero reset is performed during this operation, the zero reset process can be safely performed to temporarily stop the operation. Further, in this case, in order to minimize the change in room temperature when the operation is stopped once and then restarted, the operation is performed in a steady state in which the operation is continuously performed for a predetermined time or more.
第１図は本発明の一実施例の電子膨張弁駆動回路図、第
２図は電子膨張弁パルスモータ駆動出力説明図、第３図
は電子膨張弁ゼロリセット実施決定プログラムのフロー
チャートである。 １……マイクロコンピュータ、２〜５……トランジス
タ、６〜７……電子膨張弁パルスモータコイル、８……
パルスモータ回転部、９……電子膨張弁、Ａ〜Ｄ……マ
イクロコンピュータ電子膨張弁出力端子。FIG. 1 is an electronic expansion valve drive circuit diagram of one embodiment of the present invention, FIG. 2 is an explanatory diagram of an electronic expansion valve pulse motor drive output, and FIG. 3 is a flowchart of an electronic expansion valve zero reset execution determination program. 1 microcomputer, 2-5 transistors, 6-7 electronic expansion valve pulse motor coil, 8
Pulse motor rotating section, 9: electronic expansion valves, A to D: microcomputer electronic expansion valve output terminals.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐藤 敬治 静岡県清水市村松390番地 株式会社日 立製作所清水工場内 (72)発明者 渡辺 昌志 静岡県清水市村松390番地 日立清水エ ンジニアリング株式会社内 (72)発明者 石田 哲也 静岡県清水市村松390番地 日立清水エ ンジニアリング株式会社内 (56)参考文献 特開 平２−150663（ＪＰ，Ａ) 実公 平２−25090（ＪＰ，Ｙ２) (58)調査した分野(Int.Cl.7，ＤＢ名) F25B 1/00 304 F24F 11/02 102 F25B 41/06 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Keiji Sato 390 Muramatsu, Shimizu-shi, Shizuoka Prefecture Inside Shimizu Plant, Hitachi, Ltd. (72) Inventor Masashi Watanabe 390 Muramatsu, Shimizu-shi, Shizuoka Prefecture Hitachi Shimizu Engineering Corporation (72) Inventor Tetsuya Ishida 390 Muramatsu, Shimizu-shi, Shizuoka Pref. Hitachi Shimizu Engineering Co., Ltd. (56) References JP-A-2-150663 (JP, A) JP-A-2-25090 (JP, Y2) (58) Field surveyed (Int. Cl. 7 , DB name) F25B 1/00 304 F24F 11/02 102 F25B 41/06
Claims (1)
子膨張弁を有する空気調和機において、 運転中のときは、運転積算時間、及び連続運転時間がそ
れぞれ一定時間以上となった場合、運転を所定時間停止
し前記電子膨張弁をリセット処理し、 運転停止中のときは、運転停止までの運転積算時間が一
定時間以上、又はそれまでの停止回数が所定の回数を超
えた場合、前記電子膨張弁をリセット処理することを特
徴とする空気調和機。1. An air conditioner having an electronic expansion valve whose opening degree is variable in a refrigeration cycle, wherein during operation, when the integrated operation time and the continuous operation time each exceed a predetermined time, The operation is stopped for a predetermined time and the electronic expansion valve is reset.When the operation is stopped, the integrated operation time until the operation is stopped for a predetermined time or more, or when the number of stops until that time exceeds a predetermined number, An air conditioner characterized by resetting an electronic expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02308925A JP3125795B2 (en) | 1990-11-16 | 1990-11-16 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02308925A JP3125795B2 (en) | 1990-11-16 | 1990-11-16 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04186072A JPH04186072A (en) | 1992-07-02 |
| JP3125795B2 true JP3125795B2 (en) | 2001-01-22 |
Family
ID=17986932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02308925A Expired - Fee Related JP3125795B2 (en) | 1990-11-16 | 1990-11-16 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3125795B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020166273A1 (en) * | 2019-02-13 | 2020-08-20 | サンデン・オートモーティブクライメイトシステム株式会社 | Vehicle air conditioner |
| CN112503713A (en) * | 2020-12-02 | 2021-03-16 | 珠海格力电器股份有限公司 | Starting method and device of air conditioner |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3488564B2 (en) * | 1996-01-17 | 2004-01-19 | 新晃アトモス株式会社 | Control device for expansion valve of refrigerant circulation system |
| JP2009168318A (en) * | 2008-01-15 | 2009-07-30 | Denso Corp | Heat pump device and hot water supply device equipped with the same |
| JP5515698B2 (en) * | 2009-12-04 | 2014-06-11 | パナソニック株式会社 | Refrigeration cycle equipment |
| JP5224548B2 (en) * | 2010-01-29 | 2013-07-03 | オリオン機械株式会社 | Operation control method and apparatus for refrigeration cycle |
| JP6464700B2 (en) * | 2014-11-27 | 2019-02-06 | 株式会社富士通ゼネラル | Air conditioner |
| CN112524773B (en) * | 2020-12-09 | 2022-03-18 | 珠海格力电器股份有限公司 | Method and device for determining opening of electronic expansion valve |
| CN113654213B (en) * | 2021-08-18 | 2022-10-28 | 珠海格力电器股份有限公司 | Air conditioner control method and air conditioner |
| CN114152001B (en) * | 2021-10-20 | 2023-04-07 | 山东和同信息科技股份有限公司 | High-precision stepping electronic expansion valve control method and system |
-
1990
- 1990-11-16 JP JP02308925A patent/JP3125795B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020166273A1 (en) * | 2019-02-13 | 2020-08-20 | サンデン・オートモーティブクライメイトシステム株式会社 | Vehicle air conditioner |
| CN112503713A (en) * | 2020-12-02 | 2021-03-16 | 珠海格力电器股份有限公司 | Starting method and device of air conditioner |
| CN112503713B (en) * | 2020-12-02 | 2021-11-16 | 珠海格力电器股份有限公司 | Starting method and device of air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04186072A (en) | 1992-07-02 |
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