JPS6120101A - Temperature control device - Google Patents
Temperature control deviceInfo
- Publication number
- JPS6120101A JPS6120101A JP59140887A JP14088784A JPS6120101A JP S6120101 A JPS6120101 A JP S6120101A JP 59140887 A JP59140887 A JP 59140887A JP 14088784 A JP14088784 A JP 14088784A JP S6120101 A JPS6120101 A JP S6120101A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- comparator
- resistor
- voltage
- diode
- 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
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
- G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Air Conditioning Control Device (AREA)
- Feedback Control In General (AREA)
- Control Of Temperature (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、空調機器等の温度制御に用いられる温度制御
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a temperature control device used for controlling the temperature of air conditioners and the like.
従来例の構成とその問題点
近年、機器の制御に関し、電子技術の進出はめざましく
、とりわけ温度制御においては、電子式の温度制御装置
が多く用いられている。BACKGROUND OF THE INVENTION Conventional configurations and their problems In recent years, electronic technology has made remarkable advances in the control of equipment, and electronic temperature control devices have come into widespread use, particularly in temperature control.
以下、図面を参照しながら上述したような従来の温度制
御装置について第３図から第６図を参考に説明する。Hereinafter, the conventional temperature control device as described above will be explained with reference to FIGS. 3 to 6 with reference to the drawings.
図において、１は感温抵抗素子で、第１の抵抗２との接
続点の電圧ｖ１ をコンパレータ３の一方に入力する
。In the figure, 1 is a temperature-sensitive resistance element, and the voltage v1 at the connection point with the first resistor 2 is inputted to one side of the comparator 3.
４は温度設定用可変抵抗器で、第２の抵抗６とディファ
レンシャル用抵抗６との接続点の電圧ｖ２をコンパレー
タ３の他方に入力する。4 is a variable resistor for temperature setting, and inputs the voltage v2 at the connection point between the second resistor 6 and the differential resistor 6 to the other side of the comparator 3.
７はドライバー用のトランジスタでベースをコンパレー
タ３の出力に、コレクタを負荷８に、そしてエミッタは
温度制御装置の電源９のマイナス側にそれぞれ接続して
いる。7 is a driver transistor whose base is connected to the output of the comparator 3, its collector to the load 8, and its emitter to the negative side of the power supply 9 of the temperature control device.
以上のように構成さ几た温度制御装置について以下、そ
の動作について説明する。The operation of the temperature control device constructed as described above will be explained below.
まず温度信号は、下記の式（１）に示すうに、感温抵抗
素子１と抵抗２の接続点の電圧（以下温度信号電圧とい
う）■、としてコンパレータ３の一方の入力端子に入力
される。First, the temperature signal is input to one input terminal of the comparator 3 as a voltage (hereinafter referred to as temperature signal voltage) at the connection point between the temperature-sensitive resistance element 1 and the resistor 2, as shown in equation (1) below.
以下余白
Ｖ１＝ＶＣｏ−Ｒ４／Ｒ４中Ｒ２−、、、、、、、、（
１）又、従来の温度制御装置が制御する温度は、下記の
式（２） 、 （３）に示すように、温度設定用可変抵
抗器４と抵抗６とディファレンシャル用抵抗６の接続点
の電圧ｃ以下基準電圧という）ｖ２としてコンパレータ
３の他方の入力端子に入力さ几る。Below margin V1 = VCo-R4/R2- in R4, , , , , , (
1) Also, the temperature controlled by the conventional temperature control device is determined by the voltage at the connection point between the temperature setting variable resistor 4, the resistor 6, and the differential resistor 6, as shown in equations (2) and (3) below. It is input to the other input terminal of the comparator 3 as v2 (referred to as a reference voltage below c).
ｖ２．−■。ｏ−Ｒ６・Ｒ６／（Ｒ４・Ｒ６中Ｒ６・Ｒ
６中Ｒ６・Ｒ４）・・・・・・・・・（２）
ｖ２２＝■ｏｏ−Ｒ６（Ｒ４中Ｒ６）／（Ｒ４・Ｒ５中
Ｒ６・Ｒ６中Ｒ６・Ｒ４）・・・・・・・・・（３）
ここで、ｖ２１は、負荷８が動作を開始する時の電圧で
ｖ２２は負荷８が停止する時の電圧である。v2. −■. o-R6・R6/(R6・R in R4・R6
R6/R4 in 6)・・・・・・・・・(2) v22=■oo−R6(R6 in R4)/(R6 in R4/R5・R6/R4 in R6)・・・・・・・・・(3) Here, v21 is the voltage when the load 8 starts operating, and v22 is the voltage when the load 8 stops.
よってコンパレータ３にて温度信号電圧ｖ１と基準電圧
ｖ２の大小を比較し、温度信号電圧Ｖ、が基準電圧ｖ２
より大きくなると〔第４図ｔ１ で示す時間）トランジ
スタ７をオフし、逆に温度信号電圧ｖ１が基準電圧ｖ２
より小さくなると（第４図ｔ２で示す時間）トランジス
タ７をオンし、負荷８を制御する０
しかしながら上記のような回路構成では、ディファレン
シャルを与える負荷動作電圧ｖ２．と負荷停止電圧ｖ２
゜の差（以下動作電圧差ｖｄｉｆ という）は、下記の
式（４）であられされ、動作電圧差ｖｄｉｆは、温度設
定用可変抵抗器４の抵抗Ｒ４に比例して変化する。Therefore, the comparator 3 compares the magnitude of the temperature signal voltage v1 and the reference voltage v2, and the temperature signal voltage V becomes the reference voltage v2.
When the temperature signal voltage v1 becomes higher than the reference voltage v2, the transistor 7 is turned off (at the time indicated by t1 in FIG. 4), and the temperature signal voltage v1 becomes the reference voltage v2.
However, in the above-described circuit configuration, the load operating voltage v2 which provides the differential becomes smaller (at the time indicated by t2 in FIG. 4), the transistor 7 is turned on and the load 8 is controlled. and load stop voltage v2
The difference in degrees (hereinafter referred to as the operating voltage difference vdif) is calculated by the following equation (4), and the operating voltage difference vdif changes in proportion to the resistance R4 of the temperature setting variable resistor 4.
１ｖ２１ Ｖ２２１−Ｖｄｉ、−Ａｕ４−・・−＋（４
）Ａ＝Ｒ５／（Ｒ４・Ｒ５中Ｒ６・Ｒ６中Ｒ６・Ｒ４）
・・・・・・・・・（６）したがって、第５図に示す
ように、温度設定用可変抵抗器４が任意の抵抗器 Ｌ
（７）時・動作電圧差ｖｄｉｆは”Ａ ｉ ｆ であり
、この時の負荷８の動作するときの温度と停止する時の
温度差ｃ以下動作温度差という）ＴｄｉｆはＴｃ１ｔｆ
となる。又、温度設定用可変抵抗器４の別の任意の抵抗
値Ｒ”では、動作電圧差Ｖｄｉは％ｆに、動作温度差Ｔ
ｄ目はＴ” になり、前記動作温度差”ａｔｆ と
異なるとａｔｆ
いう特性を有しており、動作温度差”ｄｉ ｆにおいて
は、温度バラツキが大きく動作温度差”ｄ ｉ ｆにお
いては、負荷５の動作サイクルが多くなり経済性が悪く
なるという欠点を有していた。1v21 V221-Vdi, -Au4-...-+(4
)A=R5/(R6/R4 in R6/R6 in R4/R5)
(6) Therefore, as shown in FIG. 5, the temperature setting variable resistor 4 can be any resistor L.
(7) The time/operating voltage difference vdif is ``A i f '', and the temperature difference between the temperature when the load 8 is operating and the temperature when it is stopped at this time is c or less (referred to as the operating temperature difference) Tdif is Tc1tf
becomes. Further, for another arbitrary resistance value R'' of the temperature setting variable resistor 4, the operating voltage difference Vdi is %f, and the operating temperature difference T
The d-th becomes T'', and has the characteristic that atf is different from the operating temperature difference ``atf''. This has the disadvantage that the number of operation cycles of 5 is increased, resulting in poor economic efficiency.
発明の目的
本発明は上記の様な従来の欠点を除去するものであり、
全ての任意の温度設定において一定の動作温度差を支え
る温度制御装置を支えるものであるＯ
発明の構成
この目的を達成する為に本発明の温度制御装置は、感温
抵抗素子と第１の抵抗の接続点の電圧をコンパレータの
一方の入力トシ、前記コンパレータの他方の入力へは、
温度設定用可変抵抗器と、第２の抵抗の接続点の電圧を
、前記コンパレータの出力に応じダイオード全弁して入
力し、ディファレンシャルを、前記ダイオードでの電圧
降下にて得るもので、この構成により、全ての任意の温
度において一定の動作温度差を得ることができる。OBJECTS OF THE INVENTION The present invention obviates the drawbacks of the prior art as mentioned above.
Structure of the Invention To achieve this object, the temperature control device of the present invention includes a temperature sensitive resistance element and a first resistor. The voltage at the connection point of
The voltage at the connection point between the variable resistor for temperature setting and the second resistor is input through all diodes according to the output of the comparator, and the differential is obtained from the voltage drop across the diode. This allows a constant operating temperature difference to be obtained at any given temperature.
実施例の説明
以下、本発明の一実施例について図面を参照しなから説
明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例における温度制御装置の回路
図である。FIG. 1 is a circuit diagram of a temperature control device in one embodiment of the present invention.
図において１は、感温抵抗素子、２は第１の抵抗、３は
コンパレータ、７はトランジスタ、８は負荷で以上は従
来例の構成と同じものである。In the figure, 1 is a temperature-sensitive resistance element, 2 is a first resistor, 3 is a comparator, 7 is a transistor, and 8 is a load, which is the same as the conventional example.
４は温度設定用可変抵抗器で、第２の抵抗６と接続され
ている。１０は、アノード側を温度設定用可変抵抗器４
と第２の抵抗６の接続点に接続し、カソード側をコンパ
レータ３に接続したダイオードで、温度設定用可変抵抗
器４と抵抗６の接続点の電圧Ｖ を一定電圧降下して基
準電圧ｖ３ としてコンパレータ３の別の入力として
入力する。Reference numeral 4 denotes a temperature setting variable resistor, which is connected to the second resistor 6. 10 is a variable resistor 4 for setting the temperature on the anode side.
A diode is connected to the connection point between the temperature setting variable resistor 4 and the resistor 6, and the voltage V at the connection point between the temperature setting variable resistor 4 and the resistor 6 is lowered by a constant voltage, using a diode whose cathode side is connected to the comparator 3 and used as the reference voltage v3. Input as another input of comparator 3.
１１はスイッチ手段を構成するアナログスイッチで、ダ
イオード１０と並列に接続され、コンパレータ３の出力
に応じ、ダイオード１０の両端をショート及びオープン
し、ダイオード１ｏへの通電を制御する。Reference numeral 11 denotes an analog switch constituting switching means, which is connected in parallel with the diode 10 and shorts and opens both ends of the diode 10 in accordance with the output of the comparator 3, thereby controlling energization to the diode 1o.
以上のように構成された温度制御装置について以下、そ
の動作について説明する。The operation of the temperature control device configured as described above will be explained below.
まず温度信号は上述の式（１）に示すような信号電圧ｖ
、トシてコンパレータ３の一方の入力端子に入力される
０又、本発明の温度制御装置が制御する温度は、まず負
荷８が動作を行なっている時は、コンパレータ３の出力
はＨレベルであす、これによりアナログスィッチ１１Ｖ
ｉ閉回路となりダイオード１ｏの両端をショートする為
、下記の式（６）に示す負荷停止電圧■３２として、又
負荷８が停止している時は、コンパレータ出力はＬレベ
ルであり、これによりアナログスイッチ１１は開回路と
なり、ダイオード１０を通してコンパレータ３へ電流が
流れ、下記の式（′７）に示す負荷動作電圧ｖ３．とし
てそｎそれコンパレータ３の別の入力端子に入力される
。First, the temperature signal is a signal voltage v as shown in equation (1) above.
, the temperature that is input to one input terminal of the comparator 3 and the temperature controlled by the temperature control device of the present invention is such that when the load 8 is operating, the output of the comparator 3 is at H level. , this makes the analog switch 11V
Since it becomes a closed circuit and both ends of the diode 1o are short-circuited, the load stop voltage 32 shown in equation (6) below and when the load 8 is stopped, the comparator output is at L level, which causes the analog The switch 11 becomes an open circuit, current flows through the diode 10 to the comparator 3, and the load operating voltage v3. As such, it is input to another input terminal of the comparator 3.
ｖ３２−ｖｏｏ−Ｒ４／（Ｒ４・Ｒ６）・・・・・・・
・（６）ｖ３１＝ＶＣ，、Ｒ４／（Ｒ４・Ｒ６）−Ｖ、
。”””””）（Ｖｌ。：ダイオード１０による電圧降
下）したがってコンパレータ３にて温度信号電圧Ｖ。v32-voo-R4/(R4・R6)・・・・・・
・(6) v31=VC,, R4/(R4・R6)−V,
. """"") (Vl.: Voltage drop due to diode 10) Therefore, the temperature signal voltage V at comparator 3.
と基準電圧■３（ｖ３．又はｖ３２）の大小を比較し、
トランジスタ７を制御しさらに負荷８を制御する。Compare the magnitude of and reference voltage ■3 (v3. or v32),
The transistor 7 is controlled and the load 8 is further controlled.
以上のように本実施例によればディファレンシャルを支
える電圧ｖ３，４圧ｖ３２との差（以下動作電圧差ＶＤ
という）は下記の式（８）で表わされ、動作電圧差Ｖ
Ｄは温度設定用可変抵抗器４の抵抗値Ｒ４に無関係に一
定となる。As described above, according to this embodiment, the difference between the voltages v3 and 4 voltages v32 (hereinafter referred to as operating voltage difference VD) that support the differential is
) is expressed by the following equation (8), and the operating voltage difference V
D remains constant regardless of the resistance value R4 of the temperature setting variable resistor 4.
ｌ ｖ３．−”３２１ ＝ＶＤ＝ｖ１０ −
−− （８）したがって第２図に示すように温度設定用
可変抵抗器４の全ての任意の抵抗値Ｒ４において負荷８
が動作を開始するときの温度と負荷８が動作を停止する
ときの温度差は一定で、温度バラツキと経済性の両面を
考慮した温度制御をすることができる。l v3. −”321 =VD=v10 −
-- (8) Therefore, as shown in FIG.
The difference between the temperature when the load 8 starts operating and the temperature when the load 8 stops operating is constant, and temperature control can be performed in consideration of both temperature variation and economical efficiency.
発明の効果
以上のように本発明は、温度制御装置の制御温度を決定
する基準電圧は、温度設定用可変抵抗器と抵抗の接続点
の電圧をコンパレータの出力に応じ、ダイオードを介し
て入力することによりディファレンシャルを前記ダイオ
ードでの電圧降下にて決定し、全ての任意の温度におい
て、動作温度差を一定することができ、快適性及び経済
性より、その実用的効果は大なるものがある。Effects of the Invention As described above, in the present invention, the reference voltage for determining the control temperature of the temperature control device is inputted via a diode according to the voltage at the connection point of the temperature setting variable resistor and the resistor, according to the output of the comparator. As a result, the differential is determined by the voltage drop across the diode, and the operating temperature difference can be made constant at any arbitrary temperature, which has great practical effects in terms of comfort and economy.
第１図は、本発明の一実施例における温度制御装置の回
路図、第２図は同第１図の温度設定値と動作温度差の関
係を示す説明図、第３図は従来の温度制御装置の回路図
、第４図は同第３図の動作タイミングチャート図、第６
図は同第３図の温度設定値と動作温度差の関係を示す説
明図である。
１・・・・・・感温抵抗素子、２，５・・・・・・抵抗
、３・・・・・・コンパレータ、４・・・・・・温度設
定用可変抵抗器、１ｏ・・・・・・ダイオード、１１・
・・・・アナログスイッチ。Fig. 1 is a circuit diagram of a temperature control device according to an embodiment of the present invention, Fig. 2 is an explanatory diagram showing the relationship between the temperature setting value in Fig. 1 and the operating temperature difference, and Fig. 3 is a conventional temperature control device. The circuit diagram of the device, Figure 4 is the operation timing chart diagram of Figure 3, and Figure 6 is the circuit diagram of the device.
The figure is an explanatory diagram showing the relationship between the temperature setting value and the operating temperature difference in FIG. 3. 1... Temperature sensitive resistance element, 2, 5... Resistor, 3... Comparator, 4... Temperature setting variable resistor, 1o... ...Diode, 11.
...Analog switch.
Claims (1)
タの一方の入力とし、温度設定用可変抵抗器と、第２の
抵抗の接続点に前記コンパレータ出力により電流を導通
及びしゃ断するスイッチ手段と並列接続したダイオード
のアノード側を接続し、前記ダイオードのカソード側を
前記コンパレータの他方の入力とする温度制御装置。Switching means that uses the voltage at the connection point of the temperature-sensitive resistance element and the first resistor as one input of a comparator, and conducts and cuts off current to the connection point of the temperature setting variable resistor and the second resistor by the comparator output. A temperature control device in which the anode side of a diode connected in parallel with is connected, and the cathode side of the diode is used as the other input of the comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59140887A JPS6120101A (en) | 1984-07-06 | 1984-07-06 | Temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59140887A JPS6120101A (en) | 1984-07-06 | 1984-07-06 | Temperature control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6120101A true JPS6120101A (en) | 1986-01-28 |
Family
ID=15279088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59140887A Pending JPS6120101A (en) | 1984-07-06 | 1984-07-06 | Temperature control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6120101A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5654096A (en) * | 1995-03-30 | 1997-08-05 | Teijin Limited | Electroconductive conjugate fiber |
-
1984
- 1984-07-06 JP JP59140887A patent/JPS6120101A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5654096A (en) * | 1995-03-30 | 1997-08-05 | Teijin Limited | Electroconductive conjugate fiber |
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