JPS5845434A

JPS5845434A - Operation control system for air conditioner

Info

Publication number: JPS5845434A
Application number: JP56144494A
Authority: JP
Inventors: Fujio Murase; 村瀬　富士男; Shinji Naka; 中　信二
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 1981-09-11
Filing date: 1981-09-11
Publication date: 1983-03-16

Abstract

PURPOSE:To prevent over-cooling by a method wherein a compressor is operated forcibly for a predetermined period of time upon the test operation and, thereafter, a cooling operation is effected under setting a room temperature at a predetermined value. CONSTITUTION:Signals for operation, stopping and the room temperature setting are inputted into a controller 6 from an input means 7 and the data of the room temperature is inputted into the controller 6 from a deciding and comparing means 8 in order to control the air conditioner through a control means 12. When the room temperature setting is set at the position of the test operation, a count is effected in a data memory 11 by the controller 6 based on a standard clock input signal from a timer input means 10, the compressor is operated forcibly until the count is arrived at the value of the data (the period of time of the forced operation) of the data memory 11 and, thereafter, the set value of the room temperature is set at the predetermined value to effect the cooling operation.

Description

【発明の詳細な説明】本発明は、空気調和機の室温制御装置に関するもので、
特に空気調和機設置時又はサービス時に強制的に圧縮機
を運転せしめる試運転制御を改良するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a room temperature control device for an air conditioner.
In particular, the test run control for forcing the compressor to operate when installing or servicing an air conditioner is improved.

従来、空気調和機を設置する場合や、空気調和機器異常
時のサービス時等においては、室温調節機を運転させて
運転状況をチェックしていた。この制御は第１図の電気
回路図で示す如くになっている。第１図中、１は電源ス
ィッチ、２は室内送風機、３は室温調節器、４は圧縮機
、６は室外送風機を示し、電源スィッチ１をＯＮすれば
、室内送風機２が運転され、同時に、室温調節器３は機
械的に強制ＯＮされておシ、圧縮機４と、室外送風機６
が運転されるしくみになっている０またこの室温調節器
３は第２図の空気調和機の正面図の右端に取シ付けられ
ており、室温調節器３は通常の室温制御範囲（数字で１
〜６〜・迄）と強制的にＯＮする所、即ち試運転位置（
※印）を区別している。この室温調節器３の単体特性は
第８図の如き特性を持っており、使用者が室温調節器の
ツマミ位置を１にすれば室温が約３０［でツマミ位置が
・であれば室温が約１ｏＣで制御される。又※位置にツ
マミがあれば、室内温度が６Ｃ以下でも圧縮機が運転さ
れるｏしかしながらこの方式を採用する場合１例えば、
空気調和機設置時印位置にし、その後使用する時に使用
者がツマミ位置を移動する事を忘れたり、又は使い勝手
がわからす※印位置で使用したとすれば、圧縮機４が強
制的に運転され室温が下がりすぎて、空気調和機の本来
の機能をはたさないばかりか、冷え過ぎにより１人体に
非常に悪影響を与えるものである。Conventionally, when installing an air conditioner or servicing an air conditioner when an abnormality occurs, the room temperature controller is operated to check the operating status. This control is as shown in the electrical circuit diagram of FIG. In FIG. 1, 1 is a power switch, 2 is an indoor blower, 3 is a room temperature controller, 4 is a compressor, and 6 is an outdoor blower. When the power switch 1 is turned on, the indoor blower 2 is operated, and at the same time, The room temperature controller 3 is mechanically forced on, and the compressor 4 and outdoor fan 6
This room temperature controller 3 is installed at the right end of the front view of the air conditioner in Figure 2, and the room temperature controller 3 has a normal room temperature control range (numbered 1
~6~) and the place where it is forcibly turned on, that is, the test run position (
*mark) is distinguished. The individual characteristics of this room temperature regulator 3 are as shown in Fig. 8. If the user sets the knob position of the room temperature controller to 1, the room temperature will be approximately 30°C, and if the knob position is -, the room temperature will be approximately 30°C. Controlled by 1oC. Also, if there is a knob in the * position, the compressor will operate even if the indoor temperature is below 6C.However, if you use this method 1 For example,
If the air conditioner is set to the marked position when installed, and then the user forgets to move the knob when using it, or if the user uses it at the *marked position for ease of use, the compressor 4 will be forced into operation. Not only does the room temperature drop so low that the air conditioner no longer performs its intended function, but the temperature becomes too cold, which has a very negative effect on the human body.

本発明はかかる従来の欠点を解消すべく考えられたもの
であり、試運転のツマミ位置※印に室温調節器が設定さ
れれば、ある一定時間は圧縮機を強制的に運転させ−１
それ以後は、室温調節器の設定を一定にするようにした
ものである。The present invention has been devised to eliminate such conventional drawbacks, and when the room temperature controller is set to the knob position *marked during the trial run, the compressor is forced to operate for a certain period of time.
After that, the room temperature controller settings were kept constant.

以下に本発明の一実施例における空気調和機の運転制御
装置について第４図ないし第６図に基いて説明する。An operation control device for an air conditioner according to an embodiment of the present invention will be described below with reference to FIGS. 4 to 6.

第４図は本発明に係るブロック図、第５図はその具体的
な回路構成の一例を示す回路図であり。FIG. 4 is a block diagram according to the present invention, and FIG. 5 is a circuit diagram showing an example of a specific circuit configuration thereof.

第６図は同実施例の回路構成で空気調和機を運転した場
合の室温制御の例を示している。FIG. 6 shows an example of room temperature control when an air conditioner is operated with the circuit configuration of the same embodiment.

第４図において、６はマイクロコンピュータ等６には、
運転又は停止を入力したり、室温調節温度を入力する入
力手段７と、室温を制御するための判定・比較手段８と
、室温検出器９（サーミスタ）と、圧縮機４を強制運転
する時間の基準クロックを作るタイマ入力手段１ｏと圧
縮機４の強制運転時間をカウントするデータメモリ１１
と、空気調和機を制御する制御手段１２とが結線接続さ
れている。In FIG. 4, 6 is a microcomputer, etc.
An input means 7 for inputting operation or stop or inputting the room temperature adjustment temperature, a judgment/comparison means 8 for controlling the room temperature, a room temperature detector 9 (thermistor), and a time setting for forced operation of the compressor 4. A timer input means 1o for generating a reference clock and a data memory 11 for counting forced operation time of the compressor 4
and a control means 12 for controlling the air conditioner are connected by wire.

空気調和機の制御装置の具体例を第４図、第６図を用い
て以下に示す。A specific example of a control device for an air conditioner is shown below using FIGS. 4 and 6.

コントローラ６に運転・停止や室温設定の信号が入力手
段７によって取り込まれ、またほぼ同時に室温データも
判定・比較手段８からの出力温度信号によって取り込ま
れる。そしである一定のシーケンスでコントローラ６に
より制御手段１２によって空気調和機が制御される。こ
こで、圧縮機４の強制運転時間は、基準□クロックを入
力するタイマ入力手段１０からの入力情報に基づいての
コントローラ６によシデータメモリ１１でカラン後デー
タメモリ１１のデータ値（強制運転時間）以上になれば
、コントローラ６の指示に基づき室温をある一定値にす
べく、室温判定・比較手段８からの出力状態に基づき、
制御手段１２により圧縮機４が強制運転を解除し、間欠
運転モードとなり、室温が一定値で制御されるものであ
る。Signals for operation/stop and room temperature setting are input to the controller 6 by the input means 7, and at the same time, room temperature data is also input by the output temperature signal from the determination/comparison means 8. The air conditioner is then controlled by the controller 6 and the control means 12 in a certain sequence. Here, the forced operation time of the compressor 4 is calculated by the controller 6 based on the input information from the timer input means 10 that inputs the reference clock. time), based on the output state from the room temperature determination/comparison means 8, in order to keep the room temperature at a certain constant value based on the instructions from the controller 6.
The compressor 4 is released from forced operation by the control means 12, enters an intermittent operation mode, and the room temperature is controlled at a constant value.

具体的には、コントローラ６は、データメモリ１１を内
蔵した１チツプマイクロコンピユータ１３（以下マイコ
ン１３という）によって実現され。Specifically, the controller 6 is realized by a 1-chip microcomputer 13 (hereinafter referred to as microcomputer 13) having a built-in data memory 11.

入力手段７は、運転・停止スイッチ１４や室温調節スイ
ッチ１６で構成されＡφ〜Ａ３．Ｂφ〜Ｂ３ポートに４
ピツト×２ポートでマイコン１３に入力する。The input means 7 includes a run/stop switch 14 and a room temperature adjustment switch 16, and is configured to input signals Aφ to A3. 4 to Bφ~B3 port
Input to the microcomputer 13 through two pit ports.

また室温の判定・比較手段８としては出カニφ〜■２か
らのデジタル信号をアナログ信号に変えるＤ／Ａ変換回
路１６と、電位比較用のコンパレータ１７で実現し、サ
ーミスタ９によって作られる電位１８’、：、　Ｄ／Ａ
変換回路１６で作られる電位を比較して室温が何度であ
るかをＣφ人カマイコさてマインコ１３は、運転・停止
スイッチ１４が押され、室温設定スイッチ１６の値が※
印であれば、圧縮機４を強制運転すべく圧縮機用リレー
１９を（ｊＮｌ、同時に室内送風機用リレー２ｏをＯＮ
して空気調和機を制御する（前述の試運転モードなる）
。Also, the room temperature determination/comparison means 8 is realized by a D/A conversion circuit 16 that converts the digital signal from the output crab φ~2 into an analog signal, and a comparator 17 for comparing the potential, and a potential 18 generated by the thermistor 9. ', :, D/A
Comparing the potentials generated by the conversion circuit 16, the temperature of the room temperature is determined by comparing the potentials of the room temperature.
If it is, turn on the compressor relay 19 (jNl, and at the same time turn on the indoor blower relay 2o to force the compressor 4 into operation.
to control the air conditioner (in the trial run mode mentioned above)
.

またマイコン１３は、圧縮機を強制運転すると同時に、
タイマ入力手段１０により入力されるクロック信号をデ
ータメモリ１１内でカウントアツプしデータメモリ１１
でカウントした値、即ち圧縮機強制運転時間の積算時間
が一定時間（本実施例では６０分）以上かどうかを検出
し、前記一定時間以下では圧縮機を強制運転せしめ、前
記一定時間が過ぎれば、室温設定値が一定（本実施例で
は２７Ｃ）になる様に、前述の室温入力方法に従って室
温を入力し、室温が高くなれば圧縮機をＯＮさせ又逆に
室温が低ければ、圧縮機をＯＦＦさせる制御を行うもの
である。ここでタイマ入力手段は、Ａｃｅ、ｓＶ電圧と
、トランジスタ２１で簡単と−どに構成される。In addition, the microcomputer 13 forcibly operates the compressor, and at the same time,
The clock signal inputted by the timer input means 10 is counted up in the data memory 11 and
It is detected whether the counted value, that is, the accumulated time of compressor forced operation time is longer than a certain time (60 minutes in this example), and if the value is below the certain time, the compressor is forced to operate, and when the certain time has passed, the compressor is forced to operate. Input the room temperature according to the room temperature input method described above so that the room temperature setting value is constant (27C in this example), and if the room temperature becomes high, the compressor is turned on, and conversely, if the room temperature is low, the compressor is turned on. This controls to turn it off. Here, the timer input means is simply constituted by Ace, sV voltage, and transistor 21.

また、室温設定スイッチ１５の設定値が変更されれば、
マイコン１３によって室温をある設定値で制御し圧縮機
は強制運転を解除される。Moreover, if the setting value of the room temperature setting switch 15 is changed,
The microcomputer 13 controls the room temperature at a certain set value and the compressor is released from forced operation.

前述した制御状態を時間−室温で表に示せば第６図の如
くになり、運転開始後６０分間は室温が無条件に低下し
、その後室温は２７［で制御されるものである。If the above-mentioned control state is shown in a table as a function of time versus room temperature, it will be as shown in FIG. 6, in which the room temperature drops unconditionally for 60 minutes after the start of operation, and then the room temperature is controlled at 27[deg.].

以上詳細に説明したように、本発明によれば。As described in detail above, according to the present invention.

圧縮機を強制的に運転すべく情報が入力された場合は、
運転開始後一定時間は圧縮機が強制運転され、その後は
、室温設定が一定値になる為に、室温設定が試運転制御
領域のままで空気調和機を運転したとしても、空気調和
機の本来の機能である室温調和節機能をはだすのみなら
ず、冷えすぎの防止を行っており１人体に悪影春を及ぼ
すことはない。さらに低温領域で試運転で空気調和機を
使用した場合、誤操作時の霜つき現象を防止できるなど
多大４効果が得られる。If information is entered to force the compressor to operate,
The compressor is forced to operate for a certain period of time after the start of operation, and after that, the room temperature setting becomes a constant value. Not only does it function as a room temperature regulator, but it also prevents the body from getting too cold, so it does not cause any negative effects on the human body. Furthermore, when the air conditioner is used for a trial run in a low temperature region, four great effects can be obtained, such as being able to prevent frost formation during erroneous operation.

[Brief explanation of drawings]

第１図は従来の方式による空気調和機の運転制御回路図
、第２図は従来の方式の室温調節器を取付けた空気調和
機の正面図、第３図は従来の方式の室温調節器の単体特
性図、第４図は本発明の一実施例における空気調和機の
運転制御装置のブロック図、第６図は同運転制御装置の
具体的回路図、第６図は同空気調和機を運転させた場合
の室温変動状態図である。２・・・・・室内送風機、３・・・・・室温調節器、４
・・・・・圧縮機、５・・・・・室外送風機、１３・・
・・・・マイクロコンピュータ、１４−・・・・運転・
停止スイッチ、１５・・・・・室温調節スイッチ。代理人の氏名　弁理士　中　尾　敏　男　ほか１名第１
図！／　　　２３　４　　！ｊ、　　、、。第４図Figure 1 is an operational control circuit diagram of a conventional air conditioner, Figure 2 is a front view of an air conditioner equipped with a conventional room temperature controller, and Figure 3 is a diagram of a conventional air conditioner equipped with a room temperature controller. Figure 4 is a block diagram of an operation control device for an air conditioner according to an embodiment of the present invention, Figure 6 is a specific circuit diagram of the operation control device, and Figure 6 is a diagram showing how the air conditioner is operated. FIG. 4 is a diagram of room temperature fluctuations when 2... Indoor blower, 3... Room temperature controller, 4
...Compressor, 5...Outdoor blower, 13...
・・・Microcomputer, 14-・・・Driving・
Stop switch, 15...Room temperature adjustment switch. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure! / 23 4! j, ,,. Figure 4

Claims

[Claims] Judgment/comparison means for controlling the room temperature, input means for inputting information for forced operation of the compressor, timer means, and information from each of these means A controller that controls the harmonizer. It consists of a control means that controls the air conditioner according to the signal from the controller, and the compressor is forced to operate for a certain period of time according to the input from the input means, and after that, the room temperature is determined and compared at a constant value. Air conditioner operation control device 0