JPH05141836A - Cold storage box - Google Patents
Cold storage boxInfo
- Publication number
- JPH05141836A JPH05141836A JP3305898A JP30589891A JPH05141836A JP H05141836 A JPH05141836 A JP H05141836A JP 3305898 A JP3305898 A JP 3305898A JP 30589891 A JP30589891 A JP 30589891A JP H05141836 A JPH05141836 A JP H05141836A
- Authority
- JP
- Japan
- Prior art keywords
- damper
- thermostat
- state
- refrigerator
- temperature
- 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
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、冷蔵庫における運転制
御に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to operation control in a refrigerator.
【０００２】[0002]
【従来の技術】近年、冷蔵庫の運転制御として、マイコ
ンを使用した機種が主流となってきている。2. Description of the Related Art In recent years, models using a microcomputer have become the mainstream for operation control of refrigerators.
【０００３】従来、この種の運転制御は松下電器産業
（株）より昭和６２年４月に発売されたＮＲ−Ｄ３５Ａ
に示すような構成が一般的であった。以下、その構成に
ついて図４から図６に従い説明する。Conventionally, this kind of operation control is NR-D35A which was released by Matsushita Electric Industrial Co., Ltd. in April 1987.
The structure shown in FIG. The configuration will be described below with reference to FIGS. 4 to 6.
【０００４】１は冷蔵庫本体で、区画壁２内に構成した
冷却室３に収納した冷却器４にて冷却した空気を送風機
５にて冷凍室６及び冷蔵室７に循環させる強制通風方式
の冷蔵庫である。８は冷凍室６の温度を検知するサーミ
スタ等の冷凍室温度検知手段で、冷蔵庫の圧縮機９を運
転する運転信号を出す。１０は冷蔵室７の温度を検知す
るサ−ミスタ等の冷蔵室温度検知手段で、冷蔵室７の入
口には冷気流入量を調節するダンパーサ−モスタット１
１が設けられている。Reference numeral 1 denotes a refrigerator body, which is a forced ventilation type refrigerator in which air cooled by a cooler 4 housed in a cooling chamber 3 formed in a partition wall 2 is circulated to a freezing chamber 6 and a refrigerating chamber 7 by a blower 5. Is. Reference numeral 8 is a freezing room temperature detecting means such as a thermistor for detecting the temperature of the freezing room 6, and outputs an operation signal for operating the compressor 9 of the refrigerator. Reference numeral 10 is a refrigerating compartment temperature detecting means such as a thermistor for detecting the temperature of the refrigerating compartment 7, and a damper thermostat 1 for adjusting the inflow of cold air at the inlet of the refrigerating compartment 7.
1 is provided.
【０００５】次に制御回路について説明する。１２は制
御手段で、マイクロコンピュータ（ＣＰＵ）１３や、Ｒ
ＡＭ１４、ＲＯＭ１５等より形成されており、ＲＯＭ１
５には、動作の確認順位及びその時の状態により次の動
作を決めるプログラムが格納されている。８は冷凍室温
度検知手段、１０は冷蔵室温度検知手段で、その出力
は、前記制御手段１２に入力されている。１０は冷蔵室
温度検知手段でその出力は前記制御手段１２に入力され
ている。Next, the control circuit will be described. Reference numeral 12 is a control means, which is a microcomputer (CPU) 13 or R
It is composed of AM14, ROM15, etc., and ROM1
5 stores a program that determines the next operation based on the order of confirmation of the operation and the state at that time. Reference numeral 8 is a freezing room temperature detecting means, 10 is a refrigerating room temperature detecting means, and the output thereof is inputted to the control means 12. Reference numeral 10 is a refrigerating room temperature detecting means, the output of which is input to the control means 12.
【０００６】前記制御手段１２の出力は、圧縮機９を動
かすための駆動手段１６とダンパ−サ−モスタット１１
を開閉させるための駆動手段１７が接続されている。The output of the control means 12 is a drive means 16 for moving the compressor 9 and a damper-thermostat 11.
Drive means 17 for opening and closing is connected.
【０００７】かかる構成において図５を参考に動作の説
明を行なう。電源を投入すると、ステップ１としてＲＡ
Ｍ１４のデータをすべてクリアし、イニシャライズを行
なう。次にステップ２として冷蔵室温度検知手段１０の
状態を取り込み、ＲＡＭ１４に記憶する。そしてステッ
プ３として、ＲＡＭ１４より冷蔵室温度検知手段１０が
設定温度以上を検知したか否かを判断する。The operation of the above structure will be described with reference to FIG. When the power is turned on, RA is set as step 1
All data in M14 is cleared and initialization is performed. Next, as step 2, the state of the refrigerating room temperature detecting means 10 is fetched and stored in the RAM 14. Then, as step 3, it is judged from the RAM 14 whether or not the refrigerating compartment temperature detecting means 10 has detected the temperature equal to or higher than the set temperature.
【０００８】この時、設定温度以上であれば、ステップ
４でＲＡＭ１４のダンパ−サ−モスタット１１の状態を
調べ”開”がセットされてなければステップ５として、
ＲＡＭ１４にダンパ−サ−モスタット１１の状態を”
開”であることを記憶する。そして、ステップ６で、ダ
ンパ−サ−モスタット１１の状態を出力し、ステップ２
へもどる。ここで、ステップ４で”開”がセットされて
いれば、ステップ２へもどる。At this time, if the temperature is equal to or higher than the set temperature, the state of the damper-thermostat 11 of the RAM 14 is checked in step 4, and if "open" is not set, step 5 is executed.
The state of the damper-thermostat 11 is stored in the RAM 14.
Then, in step 6, the state of the damper-thermostat 11 is output, and in step 2
Go back. If "open" is set in step 4, the process returns to step 2.
【０００９】また、ステップ３で冷蔵室温度検知手段１
０が設定温度以下であればステップ７へ進み、ＲＡＭ１
４のダンパ−サ−モスタット１１の状態を調べ”閉”が
セットされていればステップ２へもどり、”閉”がセッ
トされていなければステップ８へ進み、ダンパ−サ−モ
スタット１１の状態が”閉”であることを記憶し、ステ
ップ６へ進み、ダンパ−サ−モスタット状態メモリを出
力しダンパ−サ−モスタット１１を動作させる。この繰
返しがつづき、冷蔵室温度検知手段１０の温度が高けれ
ばダンパ−サ−モスタット１１を開け庫内を冷やし、冷
蔵室温度検知手段１０の温度が低ければダンパ−サ−モ
スタット１１を閉め庫内が冷え過ぎるのを防ぐ。In step 3, the refrigerating compartment temperature detecting means 1
If 0 is less than or equal to the set temperature, proceed to step 7 and RAM1
The state of the damper-thermostat 11 of 4 is checked, and if "closed" is set, the process returns to step 2. If "closed" is not set, the process proceeds to step 8, and the state of the damper-thermostat 11 is " When it is stored as "closed", the process proceeds to step 6 and the damper-thermostat state memory is output to operate the damper-thermostat 11. If the temperature of the refrigerating compartment temperature detecting means 10 is high, the damper thermostat 11 is opened to cool the inside of the refrigerator, and if the temperature of the refrigerating compartment temperature detecting means 10 is low, the damper thermostat 11 is closed and the inside of the refrigerator is repeated. To prevent it from getting too cold.
【００１０】[0010]
【発明が解決しようとする課題】しかしながら、このよ
うな冷却運転中に雑音等によりＲＡＭ１４のデータが異
常となったり、ＲＯＭ１５のステップがくずれたり、通
常の動作とは全く違う動作となった場合、例えば、ステ
ップ３にて冷蔵室温度検知手段１０の温度が低いにもか
かわらず、ステップ７でＲＡＭ１４がくずれ、ダンパ−
サ−モスタット１１が実際には”開”状態であるのに”
閉”がセットされていると判断した時、または、ステッ
プ３からステップ７に進まず、ステップ４に進み、ダン
パ−サ−モスタット１１の”開”状態がセットされる
時、その状態が繰り返され、ダンパーサーモスタット１
１の”開”状態が続き、冷蔵室７の温度は非常に低温
（特に外気温が低い時）となり零度以下となって冷蔵食
品を凍結させてしまう。However, during such a cooling operation, when the data of the RAM 14 becomes abnormal due to noise or the like, the step of the ROM 15 is broken, or the operation is completely different from the normal operation, For example, although the temperature of the refrigerating compartment temperature detecting means 10 is low in step 3, the RAM 14 collapses in step 7 and the damper
Even though the thermostat 11 is actually in the "open" state
When it is judged that "closed" is set, or when step 3 is not followed by step 7 but step 4 is performed and the damper-thermostat 11 is set to the "open" state, that state is repeated. , Damper thermostat 1
The "open" state of 1 continues, the temperature of the refrigerating compartment 7 becomes extremely low (especially when the outside air temperature is low), and the refrigerating food is frozen below zero degree.
【００１１】また、ＲＡＭ１４がくずれダンパーサーモ
スタット１１が”開”状態にセットされない時には冷蔵
室温度が高くなり冷蔵食品を腐食させてしまうという問
題点があった。Further, when the RAM 14 collapses and the damper thermostat 11 is not set to the "open" state, the temperature of the refrigerating chamber rises and the refrigerated food is corroded.
【００１２】本発明は上述した問題点を解消するもので
あり、雑音等における制御回路の異常動作で、冷蔵食品
への悪影響を解消することを目的としている。The present invention solves the above-mentioned problems, and an object of the present invention is to eliminate adverse effects on refrigerated food due to abnormal operation of the control circuit due to noise or the like.
【００１３】[0013]
【課題を解決するための手段】上記課題を解決するため
に本発明の冷蔵庫は、ダンパ−サ−モスタットがＯＦＦ
している時、停止タイマを動作させ、所定時間以上積算
したら、電源投入状態にする様に構成したものである。In order to solve the above-mentioned problems, the refrigerator according to the present invention has a damper-thermost OFF.
During the operation, the stop timer is operated, and the power is turned on after the predetermined time has been accumulated.
【００１４】[0014]
【作用】本発明は、上述した構成によって、異常動作に
よって過冷却または不冷却状態となった場合、電源投入
状態にすることで、正しい冷却運転を再度行なうため、
冷蔵食品の凍結による傷みや、腐食等の悪影響を防止で
きる。According to the present invention, in the above-described structure, when a supercooled or uncooled state is caused by an abnormal operation, the power is turned on to perform the correct cooling operation again.
It is possible to prevent adverse effects such as damage and corrosion due to freezing of refrigerated food.
【００１５】[0015]
【実施例】以下、本発明の一実施例を図１から図３に従
い説明する。尚、従来と同一構成については同一符号を
付しその詳細な説明を省略し、異なる部分についてのみ
述べる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The same components as those of the conventional one are designated by the same reference numerals, detailed description thereof will be omitted, and only different portions will be described.
【００１６】図において、制御回路１８には、停止タイ
マ１９が新たに追加されている。停止タイマ１９は、ダ
ンパ−サ−モスタット１１が停止している状態を一定時
間積算するものである。In the figure, a stop timer 19 is newly added to the control circuit 18. The stop timer 19 integrates a state in which the damper-thermostat 11 is stopped for a certain period of time.
【００１７】かかる構成において図２を参考に動作の説
明を行なう。電源を投入すると、ステップ１としてＲＡ
Ｍ１４のデータをすべてクリアし、イニシャライズを行
なう。次にステップ２として冷蔵室温度検知手段１０の
状態を取り込み、ＲＡＭ１４に記憶する。そしてステッ
プ３として、ＲＡＭ１４より冷蔵室温度検知手段１０が
設定温度以上を検知したか否かを判断する。The operation of the above arrangement will be described with reference to FIG. When the power is turned on, RA is set as step 1
All data in M14 is cleared and initialization is performed. Next, as step 2, the state of the refrigerating room temperature detecting means 10 is fetched and stored in the RAM 14. Then, as step 3, it is judged from the RAM 14 whether or not the refrigerating compartment temperature detecting means 10 has detected the temperature equal to or higher than the set temperature.
【００１８】この時、設定温度以上であれば、ステップ
４でＲＡＭ１４のダンパ−サ−モスタット１１の状態を
調べ”開”がセットされてなければステップ５として、
ＲＡＭ１４にダンパ−サ−モスタット１１の状態を”
開”であることを記憶する。そして、ステップ６で、ダ
ンパ−サ−モスタット１１の状態を出力し、ステップ２
へもどる。ここで、ステップ４で”開”がセットされて
いれば、ステップ２へもどる。At this time, if the temperature is equal to or higher than the set temperature, the state of the damper-thermostat 11 of the RAM 14 is checked in step 4, and if "open" is not set, step 5 is executed.
The state of the damper-thermostat 11 is stored in the RAM 14.
Then, in step 6, the state of the damper-thermostat 11 is output, and in step 2
Go back. If "open" is set in step 4, the process returns to step 2.
【００１９】また、ステップ３で冷蔵室温度検知手段１
０が設定温度以下であればステップ７へ進み、ＲＡＭ１
４のダンパ−サ−モスタット１１の状態を調べ”閉”が
セットされていればステップ２へもどり、”閉”がセッ
トされていなければステップ８へ進み、ダンパ−サ−モ
スタット１１の状態が”閉”であることを記憶し、ステ
ップ６へ進み、ダンパ−サ−モスタット状態メモリを出
力しダンパ−サ−モスタット１１を動作させる。In step 3, the refrigerating room temperature detecting means 1
If 0 is less than or equal to the set temperature, proceed to step 7 and RAM1
The state of the damper-thermostat 11 of 4 is checked, and if "closed" is set, the process returns to step 2. If "closed" is not set, the process proceeds to step 8, and the state of the damper-thermostat 11 is " When it is stored as "closed", the process proceeds to step 6 and the damper-thermostat state memory is output to operate the damper-thermostat 11.
【００２０】この繰返しがつづき、冷蔵室温度検知手段
１０の温度が高ければダンパ−サ−モスタット１１を開
け庫内を冷やし、冷蔵室温度検知手段１０の温度が低け
ればダンパ−サ−モスタット１１を閉め庫内が冷え過ぎ
るのを防ぐ。If the temperature of the refrigerating compartment temperature detecting means 10 is high, the damper thermostat 11 is opened to cool the inside of the refrigerator, and if the temperature of the refrigerating compartment temperature detecting means 10 is low, the damper thermostat 11 is turned on. Prevents the interior from being too cold.
【００２１】しかしながら、このような冷却運転中に雑
音等によりＲＡＭ１４のデータが異常となったり、ＲＯ
Ｍ１５のステップがくずれたり、通常の動作とは全く違
う動作となった場合、例えば、ステップ３にて冷蔵室温
度検知手段１０の温度が低いにもかかわらず、ステップ
７でＲＡＭ１４がくずれ、ダンパ−サ−モスタット１１
が実際には”開”状態であるのに”閉”がセットされて
いると判断した時、または、ステップ３からステップ７
に進まず、ステップ４に進み、ダンパ−サ−モスタット
１１の”開”状態がセットされる時、もしくは、ステッ
プ３にて冷蔵室温度検知手段１０の温度が高いにもかか
わらず、ステップ４でＲＡＭ１４がくずれ、ダンパ−サ
−モスタット１１が実際には”閉”状態であるのに”
開”がセットされていると判断した時、または、ステッ
プ３からステップ４に進まず、ステップ７に進み、ダン
パ−サ−モスタット１１の”閉”状態がセットされる時
は、ステップ９に進み停止タイマ−１９をカウントし、
ステップ１０に進み停止タイマ−１９がカウントアップ
してなければステップ２へもどる。However, during such a cooling operation, data in the RAM 14 becomes abnormal due to noise or the like, and RO
If the step of M15 collapses or if the operation is completely different from normal operation, for example, the RAM 14 collapses in step 7 and the damper even though the temperature of the refrigerating room temperature detecting means 10 is low in step 3. Thermostat 11
Is judged to be set to "closed" even though it is actually "open", or step 3 to step 7
If the damper-thermostat 11 is set to the "open" state, or if the temperature of the refrigerating compartment temperature detecting means 10 is high in step 3, step 4 is executed. The RAM 14 collapses, and the damper-thermostat 11 is actually in the "closed" state.
When it is judged that the "open" is set, or when the step 3 is not proceeded to the step 4 and the step 7 is carried out, and when the damper-mostat 11 is in the "closed" state, the step 9 is carried out. Count the stop timer-19,
If the stop timer-19 is not counted up, the procedure returns to step 10.
【００２２】ただし、ステップ１０でカウントアップし
てればステップ１へもどり、冷蔵庫の電源投入時の初期
状態にする。また、ステップ６でダンパ−サ−モスタッ
ト状態メモリを出力しダンパ−サ−モスタット１１が動
いた後はステップ１１で停止タイマ１９をクリアする。
このようにしてダンパ−サ−モスタット１１がＯＦＦし
ている時間をカウントしそれが設定時間に達するとステ
ップ１へもどりＲＡＭ１４のデ−タを全てクリアし、ス
テップ２から正常なデ−タを読み込み再び正常な冷却運
転を行なう。However, if the counter is counted up in step 10, the process returns to step 1 and the refrigerator is brought into the initial state when the power is turned on. Also, after the damper-thermostat state memory is output in step 6 and the damper-thermostat 11 has moved, the stop timer 19 is cleared in step 11.
In this way, the time when the damper thermostat 11 is turned off is counted, and when it reaches the set time, it returns to step 1 and clears all the data in RAM 14, and reads the normal data from step 2. Perform normal cooling operation again.
【００２３】したがって、雑音等により、ＲＡＭ１４の
デ−タが異常になり、ダンパ−サ−モスタット１１が長
時間動かず”開”または”閉”の状態を続けた場合、電
源投入時の状態にすることで、食品が凍結したり、腐食
したりすることを未然に防ぐ事ができる。Therefore, when the data of the RAM 14 becomes abnormal due to noise or the like, and the damper-thermostat 11 does not move for a long time and remains in the "open" or "closed" state, the state at the time of power-on is restored. By doing so, it is possible to prevent food from freezing or corroding.
【００２４】[0024]
【発明の効果】以上の様に本発明の冷蔵庫によると、ダ
ンパ−サ−モスタットがＯＦＦしている時作動する停止
タイマ−を備え、前記タイマ−が所定時間積算したら、
冷蔵庫を電源投入状態にするものであるから、雑音等に
よる誤動作の際、ダンパ−サ−モスタットが”開”また
は”閉”し続け、冷蔵食品を凍結または腐食させ、傷め
てしまうという状態を未然に防止できる。又、使用者が
誤動作状態に気付き、自ら電源を抜差しする必要も無い
ため、多大な効果を有する。As described above, according to the refrigerator of the present invention, the refrigerator is provided with the stop timer which operates when the damper thermostat is OFF, and when the timer is integrated for a predetermined time,
Since the refrigerator is turned on, the damper-thermostat keeps "opening" or "closing" in the event of malfunction due to noise, etc., which freezes or corrodes the refrigerated food and damages it. Can be prevented. In addition, since the user does not need to notice the malfunctioning state and disconnect the power source by himself, it has a great effect.
【図１】発明の一実施例を示す冷蔵庫の制御回路図FIG. 1 is a control circuit diagram of a refrigerator showing an embodiment of the invention.
【図２】同冷蔵庫のフロ−チャ−ト[Fig. 2] Flow chart of the refrigerator
【図３】同冷蔵庫の断面図FIG. 3 is a sectional view of the refrigerator.
【図４】従来例を示す冷蔵庫の制御回路図FIG. 4 is a control circuit diagram of a refrigerator showing a conventional example.
【図５】同冷蔵庫のフローチャートFIG. 5: Flow chart of the refrigerator
【図６】同冷蔵庫の断面図FIG. 6 is a sectional view of the refrigerator.
１ 冷蔵庫 ６ 冷凍室 ７ 冷蔵室 ９ 圧縮機 １０ 冷蔵室温度検知器 １１ ダンパ−サ−モスタット １９ 停止タイマ 1 Refrigerator 6 Freezer 7 Refrigerator 9 Compressor 10 Refrigerator temperature detector 11 Damper thermostat 19 Stop timer
Claims (1)
を検知して前記冷蔵室のダンパ−サ−モスタットを開閉
させる冷蔵室温度検知手段と、前記ダンパ−サ−モスタ
ットが止っている時作動する停止タイマとより成り、前
記停止タイマが所定時間カウントしたら、異常と判断し
電源投入時の初期状態にする手段を備えた冷蔵庫。1. A freezer compartment, a refrigerating compartment, a refrigerating compartment temperature detecting means for opening and closing a damper thermostat of the refrigerating compartment by detecting a temperature of the refrigerating compartment, and the damper-thermostat is stopped. A refrigerator comprising a stop timer which operates when the power is turned on, and which has means for determining an abnormality when the stop timer counts for a predetermined time and returning the power supply to an initial state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3305898A JPH05141836A (en) | 1991-11-21 | 1991-11-21 | Cold storage box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3305898A JPH05141836A (en) | 1991-11-21 | 1991-11-21 | Cold storage box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05141836A true JPH05141836A (en) | 1993-06-08 |
Family
ID=17950630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3305898A Pending JPH05141836A (en) | 1991-11-21 | 1991-11-21 | Cold storage box |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05141836A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990041840A (en) * | 1997-11-24 | 1999-06-15 | 전주범 | Refrigerator with cold air supply control |
| CN104236193A (en) * | 2014-09-04 | 2014-12-24 | 合肥美的电冰箱有限公司 | Air cooling refrigerator and control method of air cooling refrigerator |
-
1991
- 1991-11-21 JP JP3305898A patent/JPH05141836A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990041840A (en) * | 1997-11-24 | 1999-06-15 | 전주범 | Refrigerator with cold air supply control |
| CN104236193A (en) * | 2014-09-04 | 2014-12-24 | 合肥美的电冰箱有限公司 | Air cooling refrigerator and control method of air cooling refrigerator |
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