JPH11211308A - Control method of electric refrigerator - Google Patents
Control method of electric refrigeratorInfo
- Publication number
- JPH11211308A JPH11211308A JP2375498A JP2375498A JPH11211308A JP H11211308 A JPH11211308 A JP H11211308A JP 2375498 A JP2375498 A JP 2375498A JP 2375498 A JP2375498 A JP 2375498A JP H11211308 A JPH11211308 A JP H11211308A
- Authority
- JP
- Japan
- Prior art keywords
- damper
- position detection
- detection signal
- temperature
- closing
- 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.)
- Withdrawn
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は庫内温度を設定値
に維持するためのダンパの制御技術に係り、特に詳しく
はダンパの位置検出信号の異常にかかわらず、ダンパを
適切に開閉制御可能とする電気冷蔵庫の制御方法に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper control technique for maintaining a temperature in a refrigerator at a set value, and more particularly to a technique capable of appropriately controlling opening and closing of a damper irrespective of an abnormality in a position detection signal of the damper. The present invention relates to a method of controlling an electric refrigerator.
【０００２】[0002]
【従来の技術】この電気冷蔵庫は、熱交換器で得た冷風
をファンによりダクトを介して所定庫内に循環させる
際、その庫内温度を温度検出手段（サーミスタ）で監視
し、この検出温度に応じてダンパの開閉を設定し、ダン
パを開閉して庫内への冷風循環を最適に制御し、食品等
を適切な温度で維持する。したがって、庫内の食品等が
凍ってしまうこともなく、また腐敗することもない。2. Description of the Related Art In this electric refrigerator, when cold air obtained by a heat exchanger is circulated through a duct through a duct into a predetermined storage by a fan, the temperature in the storage is monitored by temperature detecting means (thermistor). The opening and closing of the damper is set in accordance with the condition, the damper is opened and closed to optimally control the circulation of cold air into the refrigerator, and the food or the like is maintained at an appropriate temperature. Therefore, the food and the like in the refrigerator do not freeze and do not rot.
【０００３】また、ダンパの開閉制御においてはダンパ
モータを用い、このダンパモータをオン、オフし、また
例えばダンパの開閉を検出する開閉検出手段（例えばス
イッチ）を用い、この開閉検出手段からの位置検出信号
の変化（図４参照）により開あるいは閉に切り替わった
ことを判断する。このように、ダンパモータをオンした
後、位置検出信号によりダンパが確実に開あるいは閉状
態になっている否かを判断することができ、ひいては庫
内を適切な温度に維持することができる。In the opening / closing control of the damper, a damper motor is used, the damper motor is turned on / off, and an opening / closing detecting means (for example, a switch) for detecting the opening / closing of the damper is used. Is changed to open or closed due to the change (see FIG. 4). As described above, after the damper motor is turned on, it is possible to reliably determine whether the damper is in the open or closed state based on the position detection signal, and it is possible to maintain the inside of the refrigerator at an appropriate temperature.
【０００４】[0004]
【解決しようとする課題】しかしながら、前記電気冷蔵
庫にあっては、例えば開閉検出手段の故障により正規な
位置検出信号がなくなった場合ダンパエラーとし、ダン
パモータをオフとしているため、そのダンパモータのオ
フ時点がダンパの閉位置であると、庫内温度が上昇し、
その開閉検出手段を修理するまでに庫内の食品等が腐敗
する事態になり兼ねず、つまり冷蔵庫本来の機能を果た
さないという問題点がある。However, in the above-mentioned electric refrigerator, when a proper position detection signal is lost due to, for example, a failure of the open / close detection means, a damper error is generated and the damper motor is turned off. When the damper is in the closed position, the internal temperature rises,
Until the opening / closing detecting means is repaired, foods in the refrigerator may be spoiled, that is, there is a problem that the refrigerator does not perform its original function.
【０００５】この発明は前記課題に鑑みなされたもので
あり、その目的はダンパの位置検出信号の異常にかかわ
らず、ダンパを適切に開閉制御することができ、少なく
とも庫内温度の上昇を抑え、冷蔵庫本来の機能を失うこ
とのないようにした電気冷蔵庫の制御方法およびその装
置を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to appropriately control the opening and closing of a damper irrespective of an abnormality in a position detection signal of the damper, and to suppress at least a rise in the internal temperature of the chamber. An object of the present invention is to provide a control method of an electric refrigerator and a device therefor which do not lose the original function of the refrigerator.
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するため
に、この発明は当該電気冷蔵庫の庫内温度を温度検出手
段で検出し、該検出温度に応じてダンパの開あるいは閉
を設定するとともに、該開あるいは閉の設定にしたがっ
てダンパモータを駆動する一方、前記ダンパの開閉を検
出する位置検出手段からの位置検出信号により同ダンパ
の開あるいは閉を判断する電気冷蔵庫の制御方法であっ
て、前記位置検出信号の変化時間を計測する一方、少な
くとも前記ダンパモータをオンにしてから所定時間の間
に前記位置検出信号に変化が現れないときには、前記記
憶した変化時間をもとにして前記ダンパモータを所定時
間オンし、前記温度検出手段による検出温度をもとにし
て前記ダンパの開あるいは閉を判断するようにしたこと
を特徴としている。In order to achieve the above object, according to the present invention, the temperature inside the refrigerator of the electric refrigerator is detected by temperature detecting means, and the opening or closing of the damper is set in accordance with the detected temperature. A method for controlling an electric refrigerator that drives a damper motor in accordance with the setting of the open or closed state, and determines whether the damper is opened or closed based on a position detection signal from a position detecting unit that detects opening and closing of the damper, While measuring the change time of the position detection signal, if at least no change appears in the position detection signal within a predetermined time after turning on the damper motor, the damper motor is turned on for a predetermined time based on the stored change time. On, and determines whether the damper is open or closed based on the temperature detected by the temperature detecting means.
【０００７】この発明の電気冷蔵庫の制御方法は、前記
位置検出信号の変化時間を計測する一方、少なくとも前
記ダンパモータをオンにしてから所定時間の間に前記位
置検出信号に変化が現れないときには、前記ダンパモー
タを所定時間オンして前記ダンパを開あるいは閉とし、
かつ庫内温度の変化を監視して前記ダンパの開あるいは
閉を判断するようにしたことを特徴としている。According to the control method of an electric refrigerator of the present invention, while the change time of the position detection signal is measured, when at least the change in the position detection signal does not appear within a predetermined time after the damper motor is turned on, the change in the position detection signal is measured. Turn on the damper motor for a predetermined time to open or close the damper,
Further, it is characterized in that the change of the internal temperature is monitored to determine whether the damper is open or closed.
【０００８】この発明の電気冷蔵庫の制御方法は、前記
位置検出信号の変化時間を計測する一方、少なくとも前
記ダンパモータをオンにしてから所定時間の間に前記位
置検出信号に変化が現れないときには、庫内温度を検出
して記憶し、前記ダンパモータを所定時間だけオンし、
しかる後一定時間経過後に庫内温度を検出するととも
に、前回の庫内温度と今回の庫内温度との比較により前
記ダンパの開あるいは閉を判断するようにしたことを特
徴としている。According to the control method of the electric refrigerator of the present invention, while the change time of the position detection signal is measured, when no change appears in the position detection signal within at least a predetermined time after the damper motor is turned on, the refrigerator is controlled. The internal temperature is detected and stored, and the damper motor is turned on for a predetermined time,
Thereafter, the internal temperature is detected after a predetermined time has elapsed, and the opening or closing of the damper is determined by comparing the previous internal temperature with the current internal temperature.
【０００９】[0009]
【発明の実施の形態】以下、この発明の実施の形態を図
１ないし図３を参照して詳細に説明する。なお、ダンパ
の位置検出信号については図４を参照されたい。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. Please refer to FIG. 4 for the position detection signal of the damper.
【００１０】この発明の電気冷蔵庫の制御方法は、ダン
パの開閉状態を判断するための位置検出信号の変化時間
（図４参照）を予め得ていれば、例えば位置検出信号の
以上によりダンパエラーが発生しても、その変化時間を
もとにしてダンパモータを制御し、庫内温度の変化によ
りダンパの開閉状態を判断することが可能であり、つま
りダンパの開閉を制御することができることに着目した
ものである。In the control method of the electric refrigerator according to the present invention, if the change time of the position detection signal for judging the open / close state of the damper (see FIG. 4) is obtained in advance, for example, a damper error is caused by the above-mentioned position detection signal. Even if it occurs, the damper motor is controlled based on the change time, and it is possible to determine the open / close state of the damper based on the change in the internal temperature, that is, it is possible to control the open / close of the damper. Things.
【００１１】そのため、図１に示すように、この電気冷
蔵庫の制御方法を適用した制御装置は、庫内温度を検出
する庫内温度検出部（サーミスタ）１と、ダンパを開閉
駆動するためのダンパモータ２と、ダンパの開閉状態を
検出するための位置検出信号を出力するダンパ開閉検出
部３と、位置検出信号の変化時間を記憶する記憶部４
と、庫内温度に応じてダンパの開あるいは閉を設定し、
かつダンパモータ２をその設定にしたがってオン、オフ
駆動するとともに、位置検出信号によりダンパの開閉を
判断する一方、位置検出信号の異常（信号線の断線等）
を判断した場合には、記憶部４の変化時間および庫内温
度の変化をもとにしてダンパモータ２の開閉を制御する
制御部（マイクロコンピュータ）５とを備えている。な
お、制御部５は当該電気冷蔵庫の制御手段であり、他の
制御（例えばコンプレッサやファン等の制御）を行う。Therefore, as shown in FIG. 1, a control device to which the control method of the electric refrigerator is applied includes a refrigerator temperature detecting section (thermistor) 1 for detecting a refrigerator temperature, and a damper motor for opening and closing the damper. 2, a damper opening / closing detector 3 for outputting a position detection signal for detecting the opening / closing state of the damper, and a storage unit 4 for storing a change time of the position detection signal.
And open or close the damper according to the temperature inside the chamber,
In addition, the damper motor 2 is turned on and off according to the setting, and the opening / closing of the damper is determined based on the position detection signal, while the position detection signal is abnormal (signal line disconnection, etc.).
Is determined, the control unit (microcomputer) 5 controls opening and closing of the damper motor 2 based on the change time of the storage unit 4 and the change in the internal temperature. The control unit 5 is a control unit of the electric refrigerator, and performs other control (for example, control of a compressor, a fan, and the like).
【００１２】次に、前記構成の制御装置の動作を図２お
よび図３のフローチャート図を参照して説明すると、制
御部５は庫内温度検出部１からの検出信号により庫内温
度を検出し、この庫内温度に応じてダンパを開あるいは
閉に設定してダンパモータ２をオン駆動し、かつダンパ
開閉検出部３からの位置検出信号によりダンパの開閉を
判断し、庫内温度を設定値に維持する一方、その位置検
出信号の変化時間（図４参照）を内部タイマによって計
時して記憶部４に記憶する。なお、制御部５はコンプレ
ッサやファンを制御して庫内に冷風を循環させ、庫内温
度を設定値に維持する。このとき、ダンパ開閉検出部３
からの位置検出信号の異常（信号線の断線）を検出する
と、ダンパエラーの旨を表示する一方（例えば表示手段
のＬＥＤを所定回数点滅する一方）、図２および図３の
ルーチンを実行する。Next, the operation of the control device having the above-described configuration will be described with reference to the flow charts of FIGS. 2 and 3. The control unit 5 detects the internal temperature based on the detection signal from the internal temperature detecting unit 1. The damper motor 2 is turned on by setting the damper to open or closed according to the inside temperature, and the opening / closing of the damper is determined by the position detection signal from the damper opening / closing detection unit 3, and the inside temperature is set to the set value. Meanwhile, the change time of the position detection signal (see FIG. 4) is measured by an internal timer and stored in the storage unit 4. The control unit 5 controls the compressor and the fan to circulate cool air in the refrigerator, and maintains the temperature in the refrigerator at a set value. At this time, the damper open / close detector 3
When detecting an abnormality of the position detection signal from the controller (disconnection of the signal line), the routine of FIG. 2 and FIG. 3 is executed while displaying a damper error (for example, while blinking the LED of the display means a predetermined number of times).
【００１３】まず、制御部５はサーミスタ１からの検出
信号により現庫内温度Ｔａを検出し（ステップＳＴ
１）、この庫内温度Ｔａに応じて設定されるダンパの開
あるいは閉を検出する（ステップＳＴ２）。ダンパが開
設定である場合には、ステップＳＴ３からＳＴ４に進
み、ダンパモータ２を所定時間、例えば位置検出信号変
化時間Ｘ×１／４ｎ（ｎ；正の整数）だけオンし、ダン
パを開方向に動かす。この場合、ダンパモータ２を最大
（１／４）×Ｘ時間だけオンすることから、完全に開状
態になることもない。First, the control unit 5 detects the temperature Ta inside the warehouse based on the detection signal from the thermistor 1 (step ST).
1) The opening or closing of the damper set according to the internal temperature Ta is detected (step ST2). If the damper is set to open, the process proceeds from step ST3 to ST4, where the damper motor 2 is turned on for a predetermined time, for example, a position detection signal change time X × １ ／ n (n: a positive integer), and the damper is turned in the opening direction. move. In this case, since the damper motor 2 is turned on for the maximum (1/4) × X time, the damper motor 2 is not completely opened.
【００１４】続いて、一定時間が経過すると、つまりダ
ンパを開方向に動かしてから一定時間が経過すると、ス
テップＳＴ５からＳＴ６に進み、サーミスタ１からの検
出信号により現庫内温度Ｔｂを検出し、この現庫内温度
Ｔｂが前回の庫内温度Ｔａより低い否かを判断する（ス
テップＳＴ７）。Subsequently, when a predetermined time has elapsed, that is, when the fixed time has elapsed since the damper was moved in the opening direction, the process proceeds from step ST5 to ST6, where the temperature Tb in the current warehouse is detected by the detection signal from the thermistor 1, It is determined whether or not the current inside temperature Tb is lower than the previous inside temperature Ta (step ST7).
【００１５】現庫内温度ＴｂがＴａ以上高ければ、ダン
パの開きが足りないとしてステップＳＴ４に戻って前記
ステップを繰り返し実行し、現庫内温度が一定時間前の
庫内温度より低くなるまで繰り返し、つまりダンパモー
タ２を所定時間１／４ｎ×Ｘづつオンし、ダンパを開方
向に動かす。現庫内温度ＴｂがＴａより低く、あるいは
前記ステップの繰り返しによって現庫内温度Ｔｂ１が前
回の庫内温度Ｔｂより低くなると、ダンパが開方向に動
いていると判断し、ステップＳＴ７からＳＴ８に進み、
再度ダンパモータ２を所定時間１／４ｎ×Ｘだけオン
し、ダンパをさらに開方向に動かす。If the internal temperature Tb is higher than Ta, it is determined that the opening of the damper is insufficient, the process returns to step ST4, and the above steps are repeatedly executed until the internal temperature becomes lower than the internal temperature before a predetermined time. That is, the damper motor 2 is turned on by １ ／ n × X for a predetermined time, and the damper is moved in the opening direction. When the current internal temperature Tb is lower than Ta or the current internal temperature Tb1 becomes lower than the previous internal temperature Tb by repeating the above steps, it is determined that the damper is moving in the opening direction, and the process proceeds from step ST7 to ST8. ,
The damper motor 2 is turned on again for a predetermined time of 所 定 n × X, and the damper is further moved in the opening direction.
【００１６】続いて、一定時間が経過すると、ステップ
ＳＴ９からＳＴ１０に進み、サーミスタ１からの検出信
号により現庫内温度Ｔｃを検出し、この現庫内温度Ｔｃ
が前回の庫内温度Ｔｂ（あるいはＴｂ１等）より低いか
否かを判断する（ステップＳＴ１１）。Subsequently, after a lapse of a predetermined time, the process proceeds from step ST9 to ST10, where the temperature Tc in the current storage is detected based on the detection signal from the thermistor 1, and the temperature Tc in the current storage is detected.
Is lower than the previous internal temperature Tb (or Tb1 or the like) (step ST11).
【００１７】現庫内温度ＴｃがＴｂ（Ｔｂ１等）より低
ければ、ダンパがほぼ開状態になっていると見なして当
該ルーチンを一旦終了する。したがって、最短処理で
は、ダンパモータ２を所定時間（１／４）×Ｘだけ２回
オンすれば、ダンパをほぼ開状態とすることができ、ま
た庫内温度の変化によりそのダンパの開を判断すること
ができる。しかし、現庫内温度ＴｃがＴｂ（あるいはＴ
ｂ１等）以上高ければ、ダンパモータ２を所定時間（４
ｎ−１）／４ｎ×Ｘだけオンし（ステップＳＴ１２）、
例えば前回までの処理によりダンパが閉方向に入ってし
まった場合前回までと異なる長い時間オンし、ダンパを
開方向に動かす。例えば、ｎ＝１であれば、ダンパモー
タ２を所定時間（３／４）×Ｘだけオンすることから、
閉状態にあるダンパは開状態に入り、つまりダンパをほ
ぼ開状態として当該ルーチンを一旦終了する。If the internal temperature Tc is lower than Tb (Tb1, etc.), it is assumed that the damper is almost open, and the routine is temporarily terminated. Therefore, in the shortest processing, if the damper motor 2 is turned on twice for a predetermined time (１ ／) × X, the damper can be substantially opened, and the opening of the damper is determined based on a change in the internal temperature. be able to. However, if the temperature Tc in the warehouse is Tb (or T
b1) or more, the damper motor 2 is driven for a predetermined time (4
n-1) / 4n × X is turned on (step ST12),
For example, when the damper has entered the closing direction by the processing up to the previous time, the damper is turned on for a longer time different from the previous time, and the damper is moved in the opening direction. For example, if n = 1, the damper motor 2 is turned on for a predetermined time (3/4) × X.
The damper in the closed state enters the open state, that is, the damper is substantially opened, and the routine ends once.
【００１８】そして、ダンパを開いた後、位置検出信号
がまだ異常であれば再度当該ルーチンを実行する。ま
ず、前述同様に、サーミスタ１からの検出信号により現
庫内温度Ｔａを検出し（ステップＳＴ１）、庫内温度Ｔ
ａに応じて設定されるダンパの開あるいは閉を検出する
（ステップＳＴ２）。ダンパが閉に設定されている場
合、ステップＳＴ３からＳＴ１３に進み、ダンパモータ
２を所定時間１／４ｎ×Ｘだけオンし、ダンパを閉方向
に動かす。After the damper is opened, if the position detection signal is still abnormal, the routine is executed again. First, in the same manner as described above, the internal temperature Ta is detected from the detection signal from the thermistor 1 (step ST1), and the internal temperature T is detected.
The opening or closing of the damper set according to a is detected (step ST2). If the damper is set to be closed, the process proceeds from step ST3 to ST13, where the damper motor 2 is turned on for a predetermined time of ４n × X, and the damper is moved in the closing direction.
【００１９】続いて、一定時間が経過すると、つまりダ
ンパを開方向に動かしてから一定時間が経過すると、ス
テップＳＴ１４からＳＴ１５に進み、サーミスタ１から
の検出信号により現庫内温度Ｔｄを検出し、この現庫内
温度Ｔｄが前回の庫内温度Ｔａ以上高い否かを判断する
（ステップＳＴ１６）。Subsequently, when a certain time has elapsed, that is, when a certain time has elapsed since the damper was moved in the opening direction, the process proceeds from step ST14 to ST15, where the temperature Td in the warehouse is detected by the detection signal from the thermistor 1, It is determined whether or not the current inside temperature Td is higher than the previous inside temperature Ta (step ST16).
【００２０】現庫内温度ＴｄがＴａより低ければ、ダン
パの閉じが足りないとしてステップＳＴ１３に戻って前
記ステップを繰り返し実行し、現庫内温度が一定時間前
の庫内温度以上高くなるまで繰り返し、つまりダンパモ
ータ２を所定時間１／４ｎ×Ｘづつオンし、ダンパを閉
方向に動かす。現庫内温度ＴｄがＴａ以上高く、あるい
は前記ステップの繰り返しによる現庫内温度Ｔｄ１が前
回の庫内温度Ｔｄ以上等になると、ダンパが閉方向に動
いていると判断し、ステップＳＴ１６からＳＴ１７に進
み、再度ダンパモータ２を所定時間１／４ｎ×Ｘだけオ
ンし、ダンパをさらに閉方向に動かす。If the internal storage temperature Td is lower than Ta, it is determined that the damper is not sufficiently closed, the process returns to step ST13, and the above steps are repeatedly executed until the internal storage temperature becomes higher than the internal storage temperature a predetermined time earlier. That is, the damper motor 2 is turned on by １ ／ n × X for a predetermined time, and the damper is moved in the closing direction. If the current warehouse temperature Td is higher than Ta or the current warehouse temperature Td1 is equal to or higher than the previous chamber temperature Td by repeating the above steps, it is determined that the damper is moving in the closing direction, and the process proceeds from step ST16 to ST17. Then, the damper motor 2 is turned on again for 1 / 4n × X for a predetermined time, and the damper is further moved in the closing direction.
【００２１】続いて、一定時間が経過すると、ステップ
ＳＴ１８からＳＴ１９に進み、サーミスタ１からの検出
信号により現庫内温度Ｔｅを検出し、この現庫内温度Ｔ
ｅが前回の庫内温度Ｔｄ（あるいはＴｄ１等）以上高い
か否かを判断する（ステップＳＴ２０）。Subsequently, after a lapse of a predetermined time, the process proceeds from step ST18 to ST19, in which the internal temperature Te is detected based on the detection signal from the thermistor 1, and the internal temperature T is detected.
It is determined whether or not e is higher than the previous internal temperature Td (or Td1 or the like) (step ST20).
【００２２】現庫内温度ＴｅがＴｄ（あるいはＴｄ１
等）以上高ければ、ダンパが閉状態になっていると見な
して当該ルーチンを一旦終了する。したがって、最短処
理では、前記開動作処理と同様に、ダンパモータ２を所
定時間（１／４）×Ｘだけ２回オンすれば、ダンパをほ
ぼ閉状態とすることができ、また庫内温度変化によりそ
のダンパの閉を判断することができる。しかし、現庫内
温度ＴｅがＴｄ（あるいはＴｄ１等）より低ければ、ダ
ンパモータ２を所定時間（４ｎ−１）／４ｎ×Ｘだけオ
ンし（ステップＳＴ２１）、例えば前回までの処理によ
りダンパが開方向に入ってしまった場合前回までと異な
る長い時間オンし、ダンパを閉方向に動かす。例えば、
ｎ＝１であれば、ダンパモータ２を所定時間（３／４）
×Ｘだけオンすることから、開状態にあるダンパは閉状
態に入り、つまりダンパをほぼ閉状態として当該ルーチ
ンを一旦終了する。When the temperature Te inside the warehouse is Td (or Td1)
Etc.) If it is higher than this, the routine is terminated once, assuming that the damper is in the closed state. Therefore, in the shortest processing, the damper can be almost closed by turning on the damper motor 2 twice for a predetermined time (１ ／) × X, as in the opening operation processing. It can be determined that the damper is closed. However, if the internal temperature Te is lower than Td (or Td1 or the like), the damper motor 2 is turned on for a predetermined time (4n-1) / 4n × X (step ST21). If it enters, it will turn on for a longer time than before and move the damper in the closing direction. For example,
If n = 1, the damper motor 2 is driven for a predetermined time (3/4)
Since only X is turned on, the damper in the open state enters the closed state, that is, the damper is almost closed, and the routine is temporarily terminated.
【００２３】前述した処理を繰り返すことにより、例え
ば位置検出信号ラインの断線等によりダンパエラーが生
じても、ダンパモータ２を所定時間オンし、また庫内温
度によってダンパの開あるいは閉を判断する。したがっ
て、設定されたダンパの状態（開あるいは閉状態）に近
づけることができ、つまりダンパを確実に開閉すること
ができ、またダンパエラーの異常が解消されるまで、ダ
ンパの開閉が行われるため、庫内の食品が腐敗すること
もない。By repeating the above-described processing, even if a damper error occurs due to, for example, a disconnection of the position detection signal line, the damper motor 2 is turned on for a predetermined time, and it is determined whether the damper is open or closed based on the internal temperature. Therefore, it is possible to approach the set damper state (open or closed state). That is, the damper can be reliably opened and closed, and the damper is opened and closed until the abnormality of the damper error is eliminated. The food in the cabinet does not rot.
【００２４】[0024]
【発明の効果】以上説明したように、この電気冷蔵庫の
制御方法およびその装置の請求項１記載の発明による
と、当該電気冷蔵庫の庫内温度に応じてダンパの開ある
いは閉を設定するとともに、この開あるいは閉の設定に
したがってダンパモータを駆動する一方、前記ダンパの
開閉を検出する位置検出手段からの位置検出信号により
同ダンパの開あるいは閉を判断する電気冷蔵庫の制御方
法であって、前記位置検出信号の変化時間を計測する一
方、少なくとも前記ダンパモータをオンにしてから所定
時間の間に前記位置検出信号に変化が現れないときに
は、前記記憶した変化時間をもとにして前記ダンパモー
タを所定時間オンし、前記温度検出手段による検出温度
をもとにして前記ダンパの開あるいは閉を判断するよう
にしたので、例えば位置検出信号ラインの断線等によっ
てダンパエラーが生じても、ダンパを開閉制御すること
ができ、少なくとも庫内温度の上昇を抑えることができ
るばかりか、冷蔵庫本来の機能を失うことなく、庫内の
食品の腐敗を防止することができるという効果がある。As described above, according to the first aspect of the control method and the apparatus of the electric refrigerator, the opening or closing of the damper is set according to the temperature in the refrigerator of the electric refrigerator. A method for controlling an electric refrigerator that drives a damper motor in accordance with the setting of opening or closing, while judging whether the damper is open or closed based on a position detection signal from position detecting means for detecting opening and closing of the damper, While measuring the change time of the detection signal, if at least no change appears in the position detection signal within a predetermined time after turning on the damper motor, the damper motor is turned on for a predetermined time based on the stored change time. Since the opening or closing of the damper is determined based on the temperature detected by the temperature detecting means, for example, Even if a damper error occurs due to a disconnection of the detection signal line, etc., the damper can be opened and closed and controlled, and at least the rise in the temperature inside the refrigerator can be suppressed, and the food in the refrigerator can be stored without losing the original function of the refrigerator. This has the effect of preventing rot.
【００２５】請求項２記載の発明によると、当該電気冷
蔵庫の庫内温度に応じてダンパの開あるいは閉を設定す
るとともに、この開あるいは閉の設定にしたがってダン
パモータを駆動する一方、前記ダンパの開閉を検出する
位置検出手段からの位置検出信号により同ダンパの開あ
るいは閉を判断する電気冷蔵庫の制御方法であって、前
記位置検出信号の変化時間を計測する一方、少なくとも
前記ダンパモータをオンにしてから所定時間の間に前記
位置検出信号に変化が現れないときには、前記ダンパモ
ータを所定時間オンして前記ダンパを開あるいは閉と
し、かつ庫内温度の変化を監視して前記ダンパの開ある
いは閉を判断するようにしたので、例えば位置検出信号
ラインの断線等によってダンパエラーが生じても、ダン
パを適切に開閉制御することができるため、庫内温度の
上昇し過ぎあるいは下降し過ぎを抑え、したがって冷蔵
庫本来の機能を失うことなく、庫内の食品の腐敗を防止
することができるという効果がある。According to the second aspect of the present invention, the opening or closing of the damper is set according to the internal temperature of the electric refrigerator, and the damper motor is driven in accordance with the setting of the opening or closing, while the opening and closing of the damper is performed. A method of controlling an electric refrigerator that determines whether the damper is open or closed based on a position detection signal from a position detection unit that detects a change in the position detection signal, while at least turning on the damper motor while measuring the change time of the position detection signal. If no change is found in the position detection signal within a predetermined time, the damper motor is turned on for a predetermined time to open or close the damper, and a change in the internal temperature is monitored to determine whether the damper is open or closed. So that even if a damper error occurs due to, for example, disconnection of the position detection signal line, Since it is Rukoto, reduce the too elevated too much, or the lowering of the internal temperature, and therefore without losing the refrigerator original function, there is an effect that it is possible to prevent spoilage of the food in the refrigerator.
【００２６】請求項３記載の発明によると、当該電気冷
蔵庫の庫内温度に応じてダンパの開あるいは閉を設定す
るとともに、この開あるいは閉の設定にしたがってダン
パモータを駆動する一方、前記ダンパの開閉を検出する
位置検出手段からの位置検出信号により同ダンパの開あ
るいは閉を判断する電気冷蔵庫の制御方法であって、前
記位置検出信号の変化時間を計測する一方、少なくとも
前記ダンパモータをオンにしてから所定時間の間に前記
位置検出信号に変化が現れないときには、庫内温度を検
出して記憶し、前記ダンパモータを所定時間だけオン
し、しかる後一定時間経過後に庫内温度を検出するとと
もに、前回の庫内温度と今回の庫内温度との比較により
前記ダンパ２開あるいは閉を判断するようにしたので、
例えば位置検出信号ラインの断線等によってダンパエラ
ーが生じても、ダンパを適切に開閉制御し、かつダンパ
の開閉状態を的確に判断することができるため、庫内温
度の上昇し過ぎあるいは下降し過ぎを抑え、したがって
冷蔵庫本来の機能を失うこともなく、庫内の食品の腐敗
を防止することができるという効果がある。According to the third aspect of the present invention, the opening or closing of the damper is set according to the temperature inside the electric refrigerator, and the damper motor is driven in accordance with the setting of the opening or closing, while the opening and closing of the damper is performed. A method of controlling an electric refrigerator that determines whether the damper is open or closed based on a position detection signal from a position detection unit that detects a change in the position detection signal, while at least turning on the damper motor while measuring the change time of the position detection signal. When no change is detected in the position detection signal during a predetermined time, the internal temperature is detected and stored, the damper motor is turned on for a predetermined time, and then the internal temperature is detected after a lapse of a predetermined time. The opening / closing of the damper 2 is determined by comparing the inside temperature of the chamber with the current inside temperature.
For example, even if a damper error occurs due to disconnection of the position detection signal line, etc., the damper can be properly opened and closed and the open / closed state of the damper can be accurately determined, so that the temperature in the refrigerator rises or falls too much. Therefore, it is possible to prevent the food in the refrigerator from being spoiled without losing the original function of the refrigerator.
【図１】この発明の一実施の形態を示し、電気冷蔵庫の
制御方法が適用される制御装置の概略的ブロック線図。FIG. 1 is a schematic block diagram of a control device to which an embodiment of the present invention is applied, to which an electric refrigerator control method is applied;
【図２】図１に示す制御装置の動作を説明するための概
略的フローチャート図。FIG. 2 is a schematic flowchart for explaining the operation of the control device shown in FIG. 1;
【図３】図１に示す制御装置の動作を説明するための概
略的フローチャート図。FIG. 3 is a schematic flowchart for explaining the operation of the control device shown in FIG. 1;
【図４】電気冷蔵庫のダンパの位置検出信号を説明する
ための概略的チャート図。FIG. 4 is a schematic chart for explaining a position detection signal of a damper of the electric refrigerator.
１ 庫内温度検出部（温度検出手段；サーミスタ） ２ ダンパモータ ３ ダンパ開閉検出部 ４ 記憶部 ５ 制御部（マイクロコンピュータ） Ｘ 位置検出信号変化時間 DESCRIPTION OF SYMBOLS 1 Inside-chamber temperature detection part (temperature detection means; thermistor) 2 Damper motor 3 Damper open / close detection part 4 Storage part 5 Control part (microcomputer) X Position detection signal change time
Claims (3)
段で検出し、該検出温度に応じてダンパの開あるいは閉
を設定するとともに、該開あるいは閉の設定にしたがっ
てダンパモータを駆動する一方、前記ダンパの開閉を検
出する位置検出手段からの位置検出信号により同ダンパ
の開あるいは閉を判断する電気冷蔵庫の制御方法であっ
て、前記位置検出信号の変化時間を計測する一方、少な
くとも前記ダンパモータをオンにしてから所定時間の間
に前記位置検出信号に変化が現れないときには、前記記
憶した変化時間をもとにして前記ダンパモータを所定時
間オンし、前記温度検出手段による検出温度をもとにし
て前記ダンパの開あるいは閉を判断するようにしたこと
を特徴とする電気冷蔵庫の制御方法。1. A temperature detecting means for detecting a temperature inside the refrigerator of the electric refrigerator, opening or closing of a damper according to the detected temperature, and driving a damper motor according to the setting of the opening or closing; A method for controlling an electric refrigerator that determines whether the damper is open or closed based on a position detection signal from a position detection unit that detects opening and closing of the damper, wherein the change time of the position detection signal is measured, and at least the damper motor is operated. When no change appears in the position detection signal within a predetermined time after being turned on, the damper motor is turned on for a predetermined time based on the stored change time, and based on a temperature detected by the temperature detection means. A method for controlling an electric refrigerator, comprising determining whether the damper is open or closed.
段で検出し、該検出温度に応じてダンパの開あるいは閉
を設定するとともに、該開あるいは閉の設定にしたがっ
てダンパモータを駆動する一方、前記ダンパの開閉を検
出する位置検出手段からの位置検出信号により同ダンパ
の開あるいは閉を判断する電気冷蔵庫の制御方法であっ
て、前記位置検出信号の変化時間を計測する一方、少な
くとも前記ダンパモータをオンにしてから所定時間の間
に前記位置検出信号に変化が現れないときには、前記ダ
ンパモータを所定時間オンして前記ダンパを開あるいは
閉とし、かつ庫内温度の変化を監視して前記ダンパの開
あるいは閉を判断するようにしたことを特徴とする電気
冷蔵庫の制御方法。2. A method of detecting the temperature in the refrigerator of the electric refrigerator by temperature detecting means, setting the opening or closing of the damper according to the detected temperature, and driving the damper motor according to the setting of the opening or closing. A method for controlling an electric refrigerator that determines whether the damper is open or closed based on a position detection signal from a position detection unit that detects opening and closing of the damper, wherein the change time of the position detection signal is measured, and at least the damper motor is operated. When no change is detected in the position detection signal within a predetermined time after being turned on, the damper motor is turned on for a predetermined time to open or close the damper, and a change in the internal temperature is monitored to open the damper. Alternatively, a method for controlling an electric refrigerator, wherein the method determines whether the electric refrigerator is closed.
段で検出し、該検出温度に応じてダンパの開あるいは閉
を設定するとともに、該開あるいは閉の設定にしたがっ
てダンパモータを駆動する一方、前記ダンパの開閉を検
出する位置検出手段からの位置検出信号により同ダンパ
の開あるいは閉を判断する電気冷蔵庫の制御方法であっ
て、前記位置検出信号の変化時間を計測する一方、少な
くとも前記ダンパモータをオンにしてから所定時間の間
に前記位置検出信号に変化が現れないときには、庫内温
度を検出して記憶し、前記ダンパモータを所定時間だけ
オンし、しかる後一定時間経過後に庫内温度を検出する
とともに、前回の庫内温度と今回の庫内温度との比較に
より前記ダンパの開あるいは閉を判断するようにしたこ
とを特徴とする電気冷蔵庫の制御方法。3. A method for detecting the temperature inside the refrigerator of the electric refrigerator by a temperature detecting means, setting the opening or closing of the damper according to the detected temperature, and driving the damper motor according to the setting of the opening or closing. A method for controlling an electric refrigerator that determines whether the damper is open or closed based on a position detection signal from a position detection unit that detects opening and closing of the damper, wherein a change time of the position detection signal is measured, and at least the damper motor is operated. If the position detection signal does not change within a predetermined time after being turned on, the internal temperature is detected and stored, the damper motor is turned on for a predetermined time, and then the internal temperature is detected after a predetermined time has elapsed. And an open or closed state of the damper is determined by comparing a previous internal temperature with a current internal temperature. How to control the refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2375498A JPH11211308A (en) | 1998-01-21 | 1998-01-21 | Control method of electric refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2375498A JPH11211308A (en) | 1998-01-21 | 1998-01-21 | Control method of electric refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11211308A true JPH11211308A (en) | 1999-08-06 |
Family
ID=12119122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2375498A Withdrawn JPH11211308A (en) | 1998-01-21 | 1998-01-21 | Control method of electric refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11211308A (en) |
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1998
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Legal Events
| Date | Code | Title | Description |
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| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20050405 |