JP2661707B2 - Electric heater temperature control device - Google Patents
Electric heater temperature control deviceInfo
- Publication number
- JP2661707B2 JP2661707B2 JP15646088A JP15646088A JP2661707B2 JP 2661707 B2 JP2661707 B2 JP 2661707B2 JP 15646088 A JP15646088 A JP 15646088A JP 15646088 A JP15646088 A JP 15646088A JP 2661707 B2 JP2661707 B2 JP 2661707B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- control
- energization
- heating
- setting
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Resistance Heating (AREA)
- Central Heating Systems (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、電気カーペット、床暖房などの電気暖房器
具の温度制御装置に関するものである。Description: TECHNICAL FIELD The present invention relates to a temperature control device for electric heating appliances such as electric carpets and floor heating.
従来の技術 従来のこの種の電気暖房器具、たとえば電気カーペッ
トの本体構成の一例を第４図に示す。電気カーペット本
体（以下本体という）１の内部に表面温度を検出する温
度センサ２と発熱線３が配線されていて、温度センサ２
で検出した表面温度がコントローラボックス４で設定し
た設定温度に等しくなるように発熱線３への通電が制御
される。また、本体１上に高級感のある厚手のカバー５
を掛けて使用するタイプも多い。このため発熱線３で発
生した熱が本体１もしくはカバー５の表面まで伝わりに
くくなっている。2. Description of the Related Art FIG. 4 shows an example of a main structure of a conventional electric heater of this type, for example, an electric carpet. A temperature sensor 2 for detecting a surface temperature and a heating wire 3 are wired inside an electric carpet body (hereinafter referred to as a body) 1.
The power supply to the heating wire 3 is controlled so that the surface temperature detected in step 3 becomes equal to the set temperature set in the controller box 4. A high-quality thick cover 5 is provided on the main body 1.
There are many types that are used by multiplying. For this reason, the heat generated by the heating wire 3 is not easily transmitted to the surface of the main body 1 or the cover 5.
第４図は発熱線３と温度センサ２が分かれた、いわゆ
る二線式の場合であるが、第５図、第６図は本体１の内
部に高分子感温体６と発熱線３が一体構成された感温ヒ
ータ線７が一本配線された、いわゆる一線式の温度制御
装置の構成を示す。第５図はこの感温ヒータ線７の一部
切欠側面図で、芯糸９の上に巻回された電極線８と発熱
線３の間に温度によってインピーダンスが変化する高分
子感温体６が充填されている。10は外皮である。FIG. 4 shows a so-called two-wire system in which the heating wire 3 and the temperature sensor 2 are separated. FIGS. 5 and 6 show that the polymer thermosensitive body 6 and the heating wire 3 are integrated in the main body 1. 1 shows a configuration of a so-called one-wire type temperature control device in which a single configured temperature-sensitive heater wire 7 is wired. FIG. 5 is a partially cutaway side view of the temperature-sensitive heater wire 7, and a polymer temperature-sensitive element 6 whose impedance changes with temperature between the electrode wire 8 wound on the core yarn 9 and the heating wire 3. Is filled. 10 is the hull.
第６図は従来の一線式の電気カーペットの構成図を示
す。第６図において、交流電源11に、発熱線３、電力制
御手段としてのリレー12の接点12aとが直列に接続され
ている。温度検出手段であるベース接地された温度検出
用トランジスタ13は交流電源11の負の半サイクルでON
し、ダイオード14、電極線８、高分子感温体６、発熱線
３を通して流れる温度信号電流がコレクタ側に接続され
た抵抗15、コンデンサ16によって温度信号電圧V1に変換
される。一方、ダイオード17、抵抗18,19、温度設定手
段である可変抵抗20およびコンデンサ21により、温度設
定V2が設定される。温度信号電圧V1と可変抵抗20で設定
した温度設定電圧V2はマイクロコンピュータ（以下マイ
コンという）22内の制御手段23に入力される。制御手段
23は入力された温度設定電圧V2と温度信号電圧V1とを比
較し、検出温度の方が低い場合、駆動手段であるトラン
ジスタ24をONし、電力制御手段であるリレー12をONし、
接点12aを介して発熱線３に通電する。タイマ手段であ
るカウンタ25は通電開始後一定時間を計時する。FIG. 6 shows a configuration diagram of a conventional one-line electric carpet. In FIG. 6, a heating wire 3 and a contact 12a of a relay 12 as power control means are connected in series to an AC power supply 11. The temperature detecting transistor 13 which is a temperature detecting means and is grounded at the base is turned on in the negative half cycle of the AC power supply
And, a diode 14, the electrode line 8, the polymer temperature sensitive body 6, the temperature signal current flowing through the heating cable 3 has a resistor 15 connected on the collector side, is converted into a temperature signal voltages V 1 by the capacitor 16. On the other hand, the diode 17, the resistors 18 and 19, variable resistor 20 and a capacitor 21 which is a temperature setting means, temperature setting V 2 is set. Temperature set voltage V 2 is set at a temperature signal voltage V 1 and the variable resistor 20 is input to the control unit 23 of the microcomputer (hereinafter referred to as microcomputer) 22. Control means
23 compares the temperature setting voltage V 2 is input temperature signal voltage V 1, the case towards the detected temperature is low, and turns ON the transistor 24 is a driving means, and ON the relay 12 is a power control unit,
The heating wire 3 is energized through the contact 12a. The counter 25, which is a timer means, measures a certain time after the start of energization.
次に、第７図のフローチャートで動作を説明する。電
源投入すると、タイマ手段であるカウンタ25はステップ
26でクリアされ、ステップ27でフル通電時間の測定を開
始する。フル通電時間中はリレー12はONしている。これ
は本体１やカバー５の表面の温度を早く設定温度に近づ
けるためである。ステップ28でフル通電が終了すると、
以後はステップ29で温度検出を行ない、ステップ30で温
度信号電圧V1と温度設定電圧V2とを比較し、設定温度に
比べて検出温度が低ければリレー12をONし、検出温度が
高ければリレー12をOFFする。このときの温度変化は第
８図のようになる。一線式の場合、第５図のように発熱
線３と高分子感温体６が一体化しており、発熱線３から
の熱がカバー５表面に伝わるよりも高分子感温体６に伝
わる方が早い。このため、フル通電終了時にはカバー５
表面の温度がまだ設定温度に達していないが、すでに高
分子感温体６の検知する温度は設定温度を越えている。
そこで、第８図のように、フル通電終了時点t1で一旦リ
レー12はOFFし、その後設定温度で制御し、ON/OFFを繰
り返して徐々にカバー５の表面全体が温まり、やがて設
定温度に達する。Next, the operation will be described with reference to the flowchart of FIG. When the power is turned on, the counter 25 as the timer means
Cleared at 26, measurement of full energization time is started at step 27. During the full energizing time, the relay 12 is ON. This is to bring the surface temperature of the main body 1 and the cover 5 closer to the set temperature quickly. When full energization ends in step 28,
Thereafter performs temperature detection at step 29, compares the temperature signal voltage V 1 and the temperature set voltage V 2 at step 30, to turn ON the relay 12 the lower the detected temperature than the set temperature, the higher the detected temperature Turn off relay 12. The temperature change at this time is as shown in FIG. In the case of the one-wire type, as shown in FIG. 5, the heating wire 3 and the polymer thermosensitive body 6 are integrated, and the heat from the heating wire 3 is transmitted to the polymer thermosensitive body 6 rather than to the surface of the cover 5. Is early. For this reason, at the end of full energization, the cover 5
Although the surface temperature has not yet reached the set temperature, the temperature detected by the polymer thermosensor 6 has already exceeded the set temperature.
Therefore, as shown in FIG. 8, once the relay 12 is turned OFF at full power at the end t 1, and the control subsequently set temperature, the entire surface of the gradually cover 5 Repeat ON / OFF is warmed and eventually the set temperature Reach.
発明が解決しようとする課題 しかしながら上記構成では、本体１やカバー５の表面
よりも高分子感温体６のほうが発熱体３の温度を検知し
やすいため、第８図のように、本体１やカバー５の表面
温度が設定温度に達するまでに時間がかかってしまうと
いう問題がある。また、t1までのフル通電の時間を長く
しすぎると、本体１の表面温度が逆に熱くなりすぎで不
快に感じるという問題を生じる。However, in the above configuration, the temperature of the heating element 3 is more easily detected by the polymer thermosensor 6 than by the surfaces of the main body 1 and the cover 5, and therefore, as shown in FIG. There is a problem that it takes time until the surface temperature of the cover 5 reaches the set temperature. In addition, if too long a time of full energization of up to t 1, there arises a problem that the surface temperature of the body 1 feel uncomfortable in the hot becomes too much to reverse.
本発明は上記問題を解決するもので、特に一線式の温
度制御において、通電開始直後の立上がり温度特性の良
い電気暖房器具の温度制御装置を提供することを目的と
するものである。An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a temperature control device of an electric heating appliance having good rising temperature characteristics immediately after the start of energization, particularly in one-line temperature control.
課題を解決するための手段 上記課題を解決するため本発明の温度制御装置は、採
暖に寄与する発熱線と、前記発熱線への通電を制御する
電力制御手段と、前記電力制御手段を駆動する駆動手段
と、前記発熱線の温度信号を検出する高分子感温体を用
いた温度センサと、前記温度センサのインピーダンス変
化を電気信号に変換する温度検出手段と、前記発熱線を
所望の温度に設定する第１の温度設定手段と、通電開始
時からの経過時間をカウントするタイマ手段と、前記タ
イマ手段のカウント値に従い前記第１の温度設定手段の
設定温度に予め設定した時間経過に従い段階的に減少す
る一定温度を加えた制御温度を設定する第２の温度設定
手段と、前記第２の温度設定手段で設置された制御温度
で前記駆動手段を制御する制御手段とを備え、発熱線に
通電開始直後は前記温度信号と設定温度で決まる一定時
間フル通電し、フル通電終了後は前記タイマ手段のカウ
ント値にしたがって徐々に制御温度を下げるように構成
したものである。Means for Solving the Problems In order to solve the above problems, a temperature control device of the present invention drives a heating line contributing to heating, a power control unit for controlling energization to the heating line, and the power control unit. A driving unit, a temperature sensor using a polymer thermosensor that detects a temperature signal of the heating wire, a temperature detection unit that converts an impedance change of the temperature sensor into an electric signal, and setting the heating wire to a desired temperature. First temperature setting means for setting, timer means for counting an elapsed time from the start of energization, and stepwise according to the elapse of a time preset to the set temperature of the first temperature setting means according to the count value of the timer means. A second temperature setting means for setting a control temperature obtained by adding a constant temperature that is reduced to a predetermined temperature, and a control means for controlling the driving means with the control temperature provided by the second temperature setting means. Immediately after the start of energization of the heating wire, full energization is performed for a certain period of time determined by the temperature signal and the set temperature, and after the end of the full energization, the control temperature is gradually decreased according to the count value of the timer means.
作用 上記構成により、通電開始時の温度設定と温度センサ
から決定した時間フル通電し、その後第２の温度設定手
段で徐々に設定温度を下げて制御することにより、通電
開始直後の立ち上がり温度特性を改善することができ
る。Operation With the above-described configuration, the full energization is performed for the time determined by the temperature setting and the temperature sensor at the start of energization, and then the temperature is gradually reduced by the second temperature setting means to control the rise temperature characteristic immediately after the start of energization. Can be improved.
実施例 以下、本発明を一実施例を図面に基づいて説明する。Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例を示す温度制御装置の構成
図である。従来例と同一の構成部分には同一符号を付与
し、その説明を省略する。第１図において、マイコン22
に第２の温度設定手段31が設けられている。FIG. 1 is a configuration diagram of a temperature control device showing one embodiment of the present invention. The same components as those of the conventional example are denoted by the same reference numerals, and description thereof will be omitted. In FIG. 1, the microcomputer 22
Is provided with a second temperature setting means 31.
その動作は、まず温度検出手段である温度検出用トラ
ンジスタ13が交流電源11の負の半サイクルでONし、ダイ
オード14、電極線８、高分子感温体６、発熱線３を通し
て流れる温度信号電流がコレクタ側に接続された抵抗1
5、コンデンサ16によって温度信号電圧V1に変換され
る。温度信号電圧V1はマイコン22内の制御手段23に入力
される。一方、可変抵抗20で設定した温度設定電圧V2は
一旦マイコン22内の第２の温度設定手段31に入力され
る。ここではタイマ手段であるカウンタ25で計時された
通電開始時からの経過時間により、制御温度を温度設定
電圧V2からどれだけ変更するかを決め、制御手段23にお
いて温度信号電圧V1と比較する。もし検出温度が低い場
合、駆動手段であるトランジスタ24をONし、電力制御手
段であるリレー12をONし、発熱線３に通電する。The operation is as follows. First, the temperature detecting transistor 13 as the temperature detecting means is turned on in the negative half cycle of the AC power supply 11, and the temperature signal current flowing through the diode 14, the electrode wire 8, the polymer thermosensor 6, and the heating wire 3 Is the resistor 1 connected to the collector side
5, is converted into a temperature signal voltages V 1 by the capacitor 16. Temperature signal voltages V 1 is input to the control unit 23 in the microcomputer 22. On the other hand, the temperature set voltage V 2 which is set by the variable resistor 20 is once input to the second temperature setting means 31 in the microcomputer 22. The elapsed time from where energization start time which is counted by the counter 25 is a timer means, decide to change much the control temperature from a temperature set voltage V 2, compares the temperature signal voltages V 1 and the control unit 23 . If the detected temperature is low, the transistor 24 as the driving means is turned on, the relay 12 as the power control means is turned on, and the heating wire 3 is energized.
さらに詳細を第２図のフローチャートで説明する。電
源投入すると、タイマ手段であるカウンタをクリアし、
カウントを開始する。ステップ32でその時点の温度信号
電圧V1と温度設定電圧V2との差より、第３図に示すフル
通電時間t1′を算出する。ステップ33でフル通電が終了
すればステップ34で温度検出を行い、次にステップ35で
電源投入時からの経過時間ｔによって定めた温度Ｔ
（ｔ）を設定温度に加え、それを制御温度とする。ステ
ップ36でこの制御温度と検出温度を比較し、制御温度の
方が高ければリレーをONし、検出温度の方が高ければリ
レーをOFFする。その後ステップ34に戻る。このときの
温度変化は第３図のように、フル通電終了後も制御温度
をすぐに設定温度まで下げずに段階的に変化させるの
で、フル通電終了後もカバー表面の温度が設定温度に達
する時点t2まで急速に温度上昇する。したがって、第８
図のようにフル通電終了からカバー表面温度が設定温度
に達するまで時間がかかりすぎるという問題はなくな
る。Further details will be described with reference to the flowchart of FIG. When the power is turned on, the counter that is the timer means is cleared,
Start counting. In step 32 from the difference between the temperature signal voltage V 1 and the temperature set voltage V 2 at that time, it calculates the full energization time t 1 'shown in Figure 3. If the full energization is completed in step 33, the temperature is detected in step 34, and then, in step 35, the temperature T determined by the elapsed time t from when the power is turned on.
(T) is added to the set temperature, and that is set as the control temperature. In step 36, the control temperature is compared with the detected temperature. If the control temperature is higher, the relay is turned on, and if the detected temperature is higher, the relay is turned off. Thereafter, the flow returns to step 34. At this time, as shown in FIG. 3, since the control temperature is changed stepwise without immediately lowering the control temperature to the set temperature even after the end of the full energization, the temperature of the cover surface reaches the set temperature even after the end of the full energization. until time t 2 rapidly increase in temperature. Therefore, the eighth
As shown in the figure, there is no problem that it takes too much time from the end of full energization until the cover surface temperature reaches the set temperature.
発明の効果 以上のように、本発明の温度制御装置は、発熱線に通
電開始後、一定時間フル通電し、その後制御温度を時間
経過にしたがい徐々に設定温度まで下げて制御するた
め、特に一線式の温度制御において、通電開始直後の立
上がり温度特性の良い温度制御が可能となる。Effect of the Invention As described above, the temperature control device of the present invention is designed to control the control temperature by gradually supplying the heating temperature to the set temperature as time passes after the heating wire starts to be supplied with current for a certain period of time. In the temperature control of the formula, it is possible to perform temperature control with good rising temperature characteristics immediately after the start of energization.
第１図は本発明の一実施例を示す温度制御装置の構成
図、第２図は同温度制御装置の温度制御を示すフローチ
ャート、第３図は同温度制御装置の本体表面温度の時間
経過を示す図、第４図は従来の電気カーペットの本体構
成図、第５図は感温ヒータ線の一部切欠側面図、第６図
は感温ヒータ線を用いた電気カーペットの従来の温度制
御装置の回路図、第７図は従来の温度制御装置の温度制
御を示すフローチャート、第８図は従来の温度制御装置
の本体表面温度の時間経過を示す図である。 ３……発熱線、６……高分子感温体、７……感温ヒータ
線、11……交流電源、12……リレー（電力制御手段）、
13……温度検出用トランジスタ（温度検出手段）、20…
…可変抵抗（第１の温度設定手段）、22……マイコン、
23……制御手段、24……トランジスタ（駆動手段）、25
……カウンタ（タイマ手段）、31……第２の温度設定手
段。FIG. 1 is a block diagram of a temperature control device showing one embodiment of the present invention, FIG. 2 is a flowchart showing temperature control of the temperature control device, and FIG. FIG. 4 is a diagram showing the main body of a conventional electric carpet, FIG. 5 is a partially cutaway side view of a temperature-sensitive heater wire, and FIG. 6 is a conventional temperature control device for an electric carpet using a temperature-sensitive heater wire. FIG. 7 is a flowchart showing the temperature control of the conventional temperature control device, and FIG. 8 is a diagram showing the lapse of time of the body surface temperature of the conventional temperature control device. 3 ... heating wire, 6 ... polymer thermosensor, 7 ... heater wire, 11 ... AC power supply, 12 ... relay (power control means),
13 ... temperature detection transistor (temperature detection means), 20 ...
... variable resistor (first temperature setting means), 22 ... microcomputer,
23: Control means, 24: Transistor (drive means), 25
... Counter (timer means), 31... Second temperature setting means.
Claims (1)
通電を制御する電力制御手段と、前記電力制御手段を駆
動する駆動手段と、前記発熱線の温度信号を検出する高
分子感温体を用いた温度センサと、前記温度センサのイ
ンピーダンス変化を電気信号に変換する温度検出手段
と、前記発熱線を所望の温度に設定する第１の温度設定
手段と、通電開始時からの経過時間をカウントするタイ
マ手段と、前記タイマ手段のカウント値に従い前記第１
の温度設定手段の設定温度に予め設定した時間経過に従
い段階的に減少する一定温度を加えた制御温度を設定す
る第２の温度設定手段と、前記第２の温度設定手段で設
定された制御温度で前記駆動手段を制御する制御手段と
を備え、発熱線に通電開始直後は前記温度信号と設定温
度で決まる一定時間フル通電し、フル通電終了後は前記
タイマ手段のカウント値にしたがって徐々に制御温度を
下げるように構成した電気暖房器具の温度制御装置。1. A heating line contributing to heating, a power control means for controlling energization of the heating line, a driving means for driving the power control means, and a polymer sensor for detecting a temperature signal of the heating line. A temperature sensor using a warm body, temperature detecting means for converting a change in impedance of the temperature sensor into an electric signal, first temperature setting means for setting the heating wire to a desired temperature, and a lapse from the start of energization. Timer means for counting time; and the first means according to a count value of the timer means.
A second temperature setting means for setting a control temperature obtained by adding a constant temperature that gradually decreases in accordance with a lapse of a preset time to the set temperature of the temperature setting means, and a control temperature set by the second temperature setting means. Control means for controlling the driving means, and immediately after the start of energization of the heating wire, full energization is performed for a certain period of time determined by the temperature signal and the set temperature, and after completion of full energization, control is gradually performed according to the count value of the timer means. Temperature control device for electric heating appliances configured to lower the temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15646088A JP2661707B2 (en) | 1988-06-23 | 1988-06-23 | Electric heater temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15646088A JP2661707B2 (en) | 1988-06-23 | 1988-06-23 | Electric heater temperature control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH025388A JPH025388A (en) | 1990-01-10 |
| JP2661707B2 true JP2661707B2 (en) | 1997-10-08 |
Family
ID=15628233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15646088A Expired - Fee Related JP2661707B2 (en) | 1988-06-23 | 1988-06-23 | Electric heater temperature control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2661707B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015058898A (en) * | 2013-09-20 | 2015-03-30 | 株式会社ファルテック | Temperature control device |
-
1988
- 1988-06-23 JP JP15646088A patent/JP2661707B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH025388A (en) | 1990-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |