JPS62272078A - Temperature controller for refrigerator - Google Patents
Temperature controller for refrigeratorInfo
- Publication number
- JPS62272078A JPS62272078A JP11693686A JP11693686A JPS62272078A JP S62272078 A JPS62272078 A JP S62272078A JP 11693686 A JP11693686 A JP 11693686A JP 11693686 A JP11693686 A JP 11693686A JP S62272078 A JPS62272078 A JP S62272078A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerator
- temperature
- compressor
- value
- temperature detection
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 27
- 238000012935 Averaging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
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
【発明の詳細な説明】
３、発明の詳細な説明
〔産業上の利用分野〕
この発明は、冷蔵庫の温度制御装置、特に、電子制御方
式の冷蔵庫の制御装置に関するものである０
〔従来の技術〕
従来、この種の冷蔵庫の制御装置として第５図ないし第
７図に示すものが考えられている。図において、１は庫
内温度を検出するサーミスタなどの温度検出素子、２は
この温度検出素子１によって検出する庫内温度を設定す
る可変抵抗器、３はこれらの温度検出素子１および可変
抵抗器２からの信号を入力して判定する温度判定部、４
はこの温度判定部３からの判定結果を入力する制御用の
コンピュータであるマイクロコンピュータ（以下マイコ
ントいう。）、５ｔ−ｊこのマイコン４の出刃が入力き
れるリレー駆動回路、６ｆ′ｉこのリレー駆動画路５で
マイコン４の出力に基づいて駆動ちれるリレー、７はこ
のリレーで、この接点リレー６が励ｇｉ嘔れたときに閉
じ、非励磁のときに開くようになっており、８は電源、
９はこの電源８から、上記リレー６の接点１が閉じてい
るときに、を力が供給される圧縮機である。[Detailed Description of the Invention] 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a temperature control device for a refrigerator, and in particular to a control device for an electronically controlled refrigerator. ] Conventionally, as control devices for this type of refrigerator, those shown in FIGS. 5 to 7 have been considered. In the figure, 1 is a temperature detection element such as a thermistor that detects the temperature inside the refrigerator, 2 is a variable resistor that sets the temperature inside the refrigerator detected by this temperature detection element 1, and 3 is the temperature detection element 1 and the variable resistor. a temperature determination unit that inputs the signal from 2 and makes a determination;
5t-j is a microcomputer (hereinafter referred to as a microcomputer) which is a control computer that inputs the determination result from the temperature determination unit 3; 5t-j is a relay drive circuit to which the output of the microcomputer 4 can be input; 6f'i is a relay drive screen; 5 is a relay that is driven based on the output of the microcomputer 4; 7 is this relay; it closes when this contact relay 6 is energized, and opens when it is de-energized; 8 is a power supply ,
Reference numeral 9 denotes a compressor to which power is supplied from the power source 8 when the contact 1 of the relay 6 is closed.
つぎに、゛動作について説明する。まず、温度判定部３
にて温度検出素子１からの信号と可変抵抗器２からの信
号とを比較（双方の抵抗値を比較）、すなわち、設定温
度より低ければ（温度検出素子１の抵抗値のほうが大き
ければ）、マイコン４にＬ ＣＬｏｗ １ｅｖｅｌ）
の信号を送り、逆に庫内の温度のほうが設定温度より高
ければ（可変抵抗器２の抵抗値のほうが大きければ）、
Ｈ（Ｈｉｇｈｌｅｖｅｌ）の信号を送るのマイコン４Ｆ
ｉ、温度判定部３からの信号を受は入れると、その信号
に応じてリレー駆動回路５にＨまたはＬの信号を出力す
る）このとき、温度判定部３からの信号がＨであればリ
レー駆動回路５にＨの信号を出力し、リレー６を励磁さ
せて接点７を閉とする。これにより、圧縮機９Ｆｉｔ源
８から電力が供給でれて駆動し、庫内を冷却する。逆に
、温度判定部３からの信号がＬであれば、マイコン４は
リレー駆動回路５にＬの信号を出力する。このＬの信号
がリレー駆動回路５に出力されている間、リレー６Ｖｉ
非励磁となりリレー接点７は開となって圧縮機は停止し
ている。Next, the operation will be explained. First, temperature determination section 3
Compare the signal from temperature detection element 1 and the signal from variable resistor 2 (comparing both resistance values), that is, if it is lower than the set temperature (if the resistance value of temperature detection element 1 is larger), Microcontroller 4 (L C Low 1 level)
If the temperature inside the refrigerator is higher than the set temperature (if the resistance value of variable resistor 2 is higher),
Microcontroller 4F sends H (High level) signal
i. When the signal from the temperature determination section 3 is received, an H or L signal is output to the relay drive circuit 5 according to the signal.) At this time, if the signal from the temperature determination section 3 is H, the relay is activated. An H signal is output to the drive circuit 5 to excite the relay 6 and close the contact 7. As a result, electric power is supplied from the compressor 9Fit source 8 and the compressor 9 is driven to cool the inside of the refrigerator. Conversely, if the signal from the temperature determining section 3 is L, the microcomputer 4 outputs an L signal to the relay drive circuit 5. While this L signal is output to the relay drive circuit 5, the relay 6Vi
The compressor is de-energized, the relay contact 7 is open, and the compressor is stopped.
このように、可変抵抗器２で設定嘔れた設定温度と温度
検出素子１によって検出嘔れた庫内温度を常に比較して
圧縮機９の駆動を制御し、庫内を一定温度に保持してい
る。In this way, the set temperature set by the variable resistor 2 and the internal temperature detected by the temperature detection element 1 are constantly compared to control the drive of the compressor 9 to maintain the internal temperature at a constant temperature. ing.
第６図は、上記マイコン今に記憶筋れている冷蔵庫の制
御プログラムの全体を示す概略フローチャートである。FIG. 6 is a schematic flowchart showing the entire control program for the refrigerator, which is stored in the memory of the microcomputer.
ま丁、ステップ＋００のイニシャルルーチンでマイコン
４の内部の各メモリをリセットするとともにイニシャル
の出力を設定し、イニシャルセットを行なう。そして、
ステップ２００．３００，４００のメインルーチンに移
行し、上述した温度制御を行なう。すなわち、各種の入
力信号を読み込み、その入力信号を判定したのち、その
判定結果に基づいて出力信号をセントする。In the initial routine at step +00, each memory inside the microcomputer 4 is reset and an initial output is set to perform initial setting. and,
The process moves to the main routine of steps 200, 300, and 400, and the temperature control described above is performed. That is, after reading various input signals and determining the input signals, output signals are sent based on the determination results.
第７図は、ステ７１３０００Å力判定動作の詳細を示す
フローチャートで、ここでは、温度判定部３からの信号
がＨであるかどうかを判定しくステップ３０す、その信
号がＨであれば圧縮機運転フラグをセントしくステップ
３０２）、Ｌであれば圧縮機運転フラグをリセットする
（ステップ３０３）０そして、この圧縮機運転フラグの
セント、リセットに対応して、第６図のステップ４００
でリレー駆動回路５の出力をセットする。FIG. 7 is a flowchart showing the details of the step 713000A force determination operation. Here, step 30 determines whether the signal from the temperature determination section 3 is H, and if the signal is H, the compressor is operated. If the flag is set to 0 (Step 302), the compressor operation flag is reset to 0 (Step 303).
to set the output of the relay drive circuit 5.
従来の制御装置においては、庫内温度を一ケ所検出する
ことで、それを庫内温度とし温度制御するだめに庫内温
度のバラツキによって、設定温度に対する適正な温度制
御が十分に行なえないという問題点があった。Conventional control devices have the problem that by detecting the temperature inside the refrigerator at one location, it is not possible to control the temperature based on the temperature inside the refrigerator, but due to variations in the temperature inside the refrigerator, it is not possible to adequately control the temperature to the set temperature. There was a point.
この考案は、このような問題点を解消するためにな妊れ
だもので、より適正な庫内温度の検出と庫内温度のバラ
ツキを減少きせることか可能な冷蔵庫の制御装置を提供
することを目的としているー〔問題点を解決するだめの
手段〕
この発明の冷蔵庫の温度制御装置は、複数個の庫内温度
を検出する温度検出素子によシ、庫内温度を適正に検出
するとともに庫内温度のバラツキが大きい場合には、フ
ァンを駆動する手段が設けられている。This invention is an attempt to solve these problems, and it is an object of this invention to provide a refrigerator control device that can more appropriately detect the temperature inside the refrigerator and reduce variations in the temperature inside the refrigerator. [Means for solving the problem] The refrigerator temperature control device of the present invention uses a plurality of temperature detection elements to detect the temperature inside the refrigerator, and can properly detect the temperature inside the refrigerator. A means for driving a fan is provided when there is a large variation in temperature inside the refrigerator.
温度検出素子は庫内温度を検出し、この検出温度に応じ
て制御回路は圧縮機の駆動制御を行なう。The temperature detection element detects the temperature inside the refrigerator, and the control circuit controls the drive of the compressor according to the detected temperature.
その際、庫内温度にバラツキがあった場合でも、複数個
の温度検出素子の検出値により温度制御することで、た
とえば、これらの検出値の平均値を庫内温度の検出値の
代表値として用い、庫内温度により近い値で圧縮機の駆
動制御を行なう。At that time, even if there are variations in the temperature inside the refrigerator, by controlling the temperature using the detection values of multiple temperature detection elements, for example, the average value of these detection values can be used as the representative value of the detected value of the temperature inside the refrigerator. The compressor is controlled to a value closer to the internal temperature.
以下、この発明の一実施例を図面について説明する０第
１図は、回路構成図で、符号１〜９は従来装置と同一符
号、で同一部分まだは相当部分を示し、説明の重複を笛
ける。図において１０〜１２は、それぞれ温度検出素子
！、ｌａと庫内温度設走用可変抵抗器２と直列に接続さ
れた抵抗器、Ｉ３ａ、１３ｂ、１３ｃはこの抵抗器１０
〜＋ ２が接続嘔れた温度検出素子１，１ａと庫内温度
設定用可変抵抗器２からの信号を入力するアナログ入力
ポート、１３はこのアナログ入力ボート１３ａ。Hereinafter, one embodiment of the present invention will be explained with reference to the drawings.0 Fig. 1 is a circuit configuration diagram, and numerals 1 to 9 are the same as those of the conventional device, and the same parts indicate corresponding parts, to avoid duplication of explanation. Let's go. In the figure, 10 to 12 are temperature detection elements, respectively! , la are connected in series with the variable resistor 2 for setting the internal temperature, and I3a, 13b, and 13c are the resistors 10.
〜+2 is an analog input port for inputting signals from the connected temperature detection elements 1 and 1a and the internal temperature setting variable resistor 2, and 13 is this analog input port 13a.
１３ｂ、１３ｃを有した電子制御回路を構成するコンピ
ューターであるマイコンで、庫内に設置された温度検出
素子１．Ｉａの検出素子の検出値と、庫内温度設定用可
変抵抗器２の設定値を上記アナログ入カポ−）１３ａ
、１３ｂ、１３ｃから読み込むようになっており、１３
ｃｊ、１３ｅＨこのマイコン１３の出力ボートで、この
マイコン１３の出カポ−）＋３ｄＫはファン用リレー駆
動回路１４が、出力ボート＋３８には圧縮機用リレー駆
動回路５が、それぞれ接続逼れており、１５は上記駆動
回路１４に接続されたファン用リレー、１６はこのファ
ン用リレー１５に接続てれた圧縮機用リレー、１７はフ
ァンである。A microcomputer, which is a computer constituting an electronic control circuit, has temperature detection elements 1. The detected value of the detection element Ia and the set value of the variable resistor 2 for internal temperature setting are input to the above analog input capo) 13a.
, 13b, 13c, and 13
cj, 13eH are the output ports of this microcomputer 13, and the output port (+3dK) of this microcomputer 13 is connected to the fan relay drive circuit 14, and the output port +38 is connected to the compressor relay drive circuit 5, respectively. 15 is a fan relay connected to the drive circuit 14, 16 is a compressor relay connected to the fan relay 15, and 17 is a fan.
第３図は、冷蔵庫Ｉ８の拡大断面図である。温度検出素
子１．ｌａは冷凍室２０内に配置嘔れている、冷蔵庫１
８の背面に上述の回路構成を有した制御装置１９が取り
付けられている。FIG. 3 is an enlarged sectional view of the refrigerator I8. Temperature detection element 1. The refrigerator 1 is placed in the freezer compartment 20.
A control device 19 having the above-described circuit configuration is attached to the back of the device 8 .
つぎに、第２図のフローチャートを参照しながら上記構
成の冷蔵庫の制御装置の動作を説明する０第２図は、マ
イコン１３に記憶嘔れている制御 ゛プログラムの入
力判定の概略フローチャートで、ステップ５０１で庫内
温度をマイコン１３のアナログ入力ボート１３８，１３
ｃから読み込み、入力データの平均値、最大値または最
小値を庫内温度の検出値の代表値として設定する０ステ
ツプ５０２で、設定温度と庫内温度を比較し、庫内温度
の方が大きければ、圧縮機フラグをセットする（ステッ
プ５０３）。設定温度の方が大きければ、圧縮機運転フ
ラグをリセットする（ステップ５０このようにして、複
数個の温度検出素子１，１ａによって庫内温度を検出し
、圧縮機９の駆動制御を行なうことでより適正な温度制
御ができる０なお、この発明の一実施例では、温度検出
素子１．１ａの検出値により圧縮機の駆動制御を行なつ
たが、第４図に示すように、庫内温度をマイコン１３の
アナログ入カポ−）１３ａ、１３ｃから読み込み、その
差が一定値より大きいかどうか判定しくステップ５０５
）、大きい場合には、庫内温度のバラツキが大きいと判
定し、ＦＡＮ運転フラグをセットする（ステップ５０６
）ｏこれにより、庫内の温度を均一にするようなファン
の駆動制御ができる０
〔発明の効果〕
以上のように、この発明によれば、複数個の温度検出素
子の検出値により、ファンを駆動し庫内温度を均一にす
るようにし、圧縮機の駆動制御するようにしたので、庫
内温度を設定値に対し、より適正に制御し得るという効
果がある０Next, the operation of the refrigerator control device having the above configuration will be explained with reference to the flowchart shown in FIG. 2. FIG. 501 inputs the internal temperature to the analog input ports 138 and 13 of the microcomputer 13.
At step 502, the average value, maximum value, or minimum value of the input data is read from c and is set as the representative value of the detected value of the temperature inside the refrigerator.The set temperature and the temperature inside the refrigerator are compared, and if the temperature inside the refrigerator is higher, For example, a compressor flag is set (step 503). If the set temperature is higher, the compressor operation flag is reset (Step 50) In this way, the temperature inside the refrigerator is detected by the plurality of temperature detection elements 1 and 1a, and the drive control of the compressor 9 is performed. In one embodiment of the present invention, the drive of the compressor is controlled based on the detected value of the temperature detection element 1.1a, but as shown in FIG. are read from the analog input ports 13a and 13c of the microcomputer 13, and it is determined whether the difference is greater than a certain value.Step 505
), if it is large, it is determined that the variation in temperature inside the refrigerator is large, and a FAN operation flag is set (step 506
) As a result, it is possible to control the drive of the fan to make the temperature inside the refrigerator uniform.0 [Effects of the Invention] As described above, according to the present invention, the fan Since the compressor is driven to equalize the temperature inside the refrigerator and the compressor is controlled, the temperature inside the refrigerator can be controlled more appropriately relative to the set value.
第１図は、この一実施例を示す回路構成図、第２図は、
同人力判定の概略フローチャート、第３図１は同冷蔵庫
の拡大断面図、第４図は他の実施例の入力判定の概略フ
ローチャート、第５図は従来例を示す回路構成図、第６
図および第７図は従来例の概略フローチャートである。
図中、Ｉ、Ｉａｔｉ温度検出素子、２は可変抵抗器、５
，１４はリレー駆動回路、６ 、 Ｉ ５Ｆｉリレー、
７，１６は接点、８は交流電源、９は圧縮機、１３はマ
イコン、１７はファン、１８は冷蔵庫、＋９Ｆｉ制御裟
置、２０Ｖｉ冷凍室。
なお、各図中同一符号は同一部分または相当部分を示す
。FIG. 1 is a circuit configuration diagram showing this embodiment, and FIG.
1 is an enlarged sectional view of the same refrigerator, FIG. 4 is a schematic flow chart of input determination in another embodiment, FIG. 5 is a circuit configuration diagram showing a conventional example, and FIG.
7 and 7 are schematic flowcharts of the conventional example. In the figure, I is an Iati temperature detection element, 2 is a variable resistor, and 5 is a variable resistor.
, 14 is a relay drive circuit, 6, I5Fi relay,
7 and 16 are contacts, 8 is an AC power supply, 9 is a compressor, 13 is a microcomputer, 17 is a fan, 18 is a refrigerator, +9Fi control device, 20Vi freezer. Note that the same reference numerals in each figure indicate the same or equivalent parts.
Claims (4)
度検出素子の検出値に基づいて圧縮機およびファンの駆
動制御をする制御回路を具備した冷蔵庫の制御装置にお
いて、温度検出素子を複数個用いて、庫内温度を制御す
る手段を設けたことを特徴とする冷蔵庫の制御装置。(1) In a refrigerator control device that is equipped with a temperature detection element that detects the temperature inside the refrigerator and a control circuit that controls the drive of the compressor and fan based on the detected value of the temperature detection element, a plurality of temperature detection elements are used. 1. A control device for a refrigerator, characterized in that a means for controlling an internal temperature of the refrigerator is provided.
よって、その平均値を検出値の代表値として、圧縮機の
駆動制御をすることを特徴とする特許請求の範囲第１項
記載の冷蔵庫制御装置。(2) The drive control of the compressor is performed by averaging the detection values of a plurality of temperature detection elements and using the average value as a representative value of the detection values. Refrigerator control device.
たは最小値を検出値の代表値として、圧縮機の駆動制御
をすることを特徴とする特許請求の範囲第１項記載の冷
蔵庫制御装置。(3) The refrigerator according to claim 1, wherein the drive of the compressor is controlled using the maximum value or the minimum value of the detected values of the plurality of temperature detection elements as a representative value of the detected values. Control device.
値の差が、一定の値を越えた場合にファンを駆動し庫内
温度を均一にするようにしたことを特徴とする特許請求
の範囲第１項ないし第３項いずれか記載の冷蔵庫の制御
装置。(4) If the difference between the maximum and minimum values detected by the plurality of temperature detection elements exceeds a certain value, the fan is driven to equalize the temperature inside the refrigerator. A refrigerator control device according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61116936A JPH0621759B2 (en) | 1986-05-21 | 1986-05-21 | Refrigerator temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61116936A JPH0621759B2 (en) | 1986-05-21 | 1986-05-21 | Refrigerator temperature controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62272078A true JPS62272078A (en) | 1987-11-26 |
| JPH0621759B2 JPH0621759B2 (en) | 1994-03-23 |
Family
ID=14699369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61116936A Expired - Lifetime JPH0621759B2 (en) | 1986-05-21 | 1986-05-21 | Refrigerator temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621759B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014105903A (en) * | 2012-11-26 | 2014-06-09 | Mitsubishi Electric Corp | Temperature control system, and its control method |
| WO2017208346A1 (en) * | 2016-05-31 | 2017-12-07 | 三菱電機株式会社 | Cold storage device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4848891A (en) * | 1971-10-22 | 1973-07-10 | ||
| JPS5762384A (en) * | 1980-10-01 | 1982-04-15 | Nihon Keikinzoku Sougou Kenkyu | Atmospheric control of refrigerator |
| JPS6014073A (en) * | 1983-07-04 | 1985-01-24 | 三菱重工業株式会社 | Air conditioner |
-
1986
- 1986-05-21 JP JP61116936A patent/JPH0621759B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4848891A (en) * | 1971-10-22 | 1973-07-10 | ||
| JPS5762384A (en) * | 1980-10-01 | 1982-04-15 | Nihon Keikinzoku Sougou Kenkyu | Atmospheric control of refrigerator |
| JPS6014073A (en) * | 1983-07-04 | 1985-01-24 | 三菱重工業株式会社 | Air conditioner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014105903A (en) * | 2012-11-26 | 2014-06-09 | Mitsubishi Electric Corp | Temperature control system, and its control method |
| WO2017208346A1 (en) * | 2016-05-31 | 2017-12-07 | 三菱電機株式会社 | Cold storage device |
| JPWO2017208346A1 (en) * | 2016-05-31 | 2018-09-06 | 三菱電機株式会社 | Cooler |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0621759B2 (en) | 1994-03-23 |
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| EXPY | Cancellation because of completion of term |