JPH0447712U - - Google Patents
Info
- Publication number
- JPH0447712U JPH0447712U JP8817290U JP8817290U JPH0447712U JP H0447712 U JPH0447712 U JP H0447712U JP 8817290 U JP8817290 U JP 8817290U JP 8817290 U JP8817290 U JP 8817290U JP H0447712 U JPH0447712 U JP H0447712U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- heating
- prevention device
- actuating
- detecting means
- 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
- Control Of Resistance Heating (AREA)
- Control Of Temperature (AREA)
Description
第１図は本考案の一実施例に係る加熱装置の過
熱防止装置の要部の一例を示す電気回路図、第２
図ａ及びｂはそれぞれ同過熱防止装置の過熱防止
検出処理の一例を示すタイムチヤート、第３図は
同過熱防止装置の要部の他の例を示す電気回路図
、第４図ａ及びｂはそれぞれ同過熱防止装置の過
熱防止検出処理の一例を示すタイムチヤート、第
５図は同過熱防止装置を電気フアンヒータに用い
た場合を示す電気回路図、第６図は同過熱防止装
置の過熱防止処理を示すフローチヤート、第７図
は加熱部の温度を検出する加熱装置の温度検出回
路の要部の一例を示す電気回路図である。
符号の説明、１，１ａ，１ｂ……過熱防止装置
、２……加熱部、３……ＮＴＣサーミスタ（温度
センサ）、４，５……アンド回路、６……遅延回
路、７……電気フアンヒータ（加熱装置）、８…
…制御部、Ｃ１，Ｃ２……コンパレータ、Ｒ４，
Ｒ５，Ｒ６，Ｒ１０……抵抗、Ｑ１，Ｑ４……ト
ランジスタ、Ｔ……タイマ。
FIG. 1 is an electric circuit diagram showing an example of a main part of an overheating prevention device for a heating device according to an embodiment of the present invention;
Figures a and b are time charts showing an example of the overheat prevention detection process of the overheat prevention device, Figure 3 is an electric circuit diagram showing another example of the main parts of the overheat prevention device, and Figures 4 a and b are A time chart showing an example of the overheating prevention detection process of the same overheating prevention device, Figure 5 is an electric circuit diagram showing the case where the same overheating prevention device is used in an electric fan heater, and Figure 6 is an overheating prevention process of the same overheating prevention device. FIG. 7 is an electric circuit diagram showing an example of a main part of a temperature detection circuit of a heating device that detects the temperature of a heating section. Explanation of symbols, 1, 1 a , 1 b ... Overheating prevention device, 2... Heating section, 3... NTC thermistor (temperature sensor), 4, 5... AND circuit, 6... Delay circuit, 7... Electric fan heater (heating device), 8...
...Control unit, C1, C2...Comparator, R4,
R5, R6, R10...Resistor, Q1, Q4...Transistor, T...Timer.
Claims (1)
の温度を検出する温度センサとを具備してなる加
熱装置の過熱防止装置において、 上記加熱部が上記所定温度であるかどうかを上
記温度センサを用いて検出する温度検出手段と、 上記加熱部が作動された後の所定時間後に、上
記温度検出手段を作動させる作動手段と、 上記作動手段が作動されたときの上記温度検出
手段からの温度検出信号に基づき、上記加熱部を
停止させる停止手段とを具備してなることを特徴
とする加熱装置の過熱防止装置。[Claims for Utility Model Registration] An overheating prevention device for a heating device comprising a heating part that is heated above a predetermined temperature and a temperature sensor that detects the temperature of the heating part, wherein the heating part is heated to a temperature exceeding the predetermined temperature. temperature detecting means for detecting whether or not the above temperature sensor is activated, an actuating means for actuating the temperature detecting means a predetermined time after the heating section is actuated, and when the actuating means is actuated. An overheat prevention device for a heating device, comprising: a stop means for stopping the heating section based on a temperature detection signal from the temperature detecting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8817290U JPH0447712U (en) | 1990-08-22 | 1990-08-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8817290U JPH0447712U (en) | 1990-08-22 | 1990-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0447712U true JPH0447712U (en) | 1992-04-23 |
Family
ID=31821169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8817290U Pending JPH0447712U (en) | 1990-08-22 | 1990-08-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0447712U (en) |
-
1990
- 1990-08-22 JP JP8817290U patent/JPH0447712U/ja active Pending
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