JP2513024Y2 - Cordless iron - Google Patents
Cordless ironInfo
- Publication number
- JP2513024Y2 JP2513024Y2 JP1990090486U JP9048690U JP2513024Y2 JP 2513024 Y2 JP2513024 Y2 JP 2513024Y2 JP 1990090486 U JP1990090486 U JP 1990090486U JP 9048690 U JP9048690 U JP 9048690U JP 2513024 Y2 JP2513024 Y2 JP 2513024Y2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- switch
- control means
- base
- heater
- 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
- Irons (AREA)
- Control Of Resistance Heating (AREA)
Description
【考案の詳細な説明】 （イ） 産業上の利用分野 本考案は被加熱体の異常加熱を防止する加熱制御装置
に関する。DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a heating control device for preventing abnormal heating of a heated object.
（ロ） 従来の技術 この種の加熱制御装置は、例えばアイロンのベースの
異常加熱を防止するために用いられるが、従来のアイロ
ン、例えば特開昭63-279900号公報においては、ヒータ
と直列接続されたリレー等の１つの開閉器をマイコン等
の制御手段の出力に基づいて開閉する構成であるので、
リレー接点が溶着したり、リレー駆動手段が故障する
と、温度ヒューズが作用するまでヒータに通電されつづ
けて被加熱体であるベースが異常加熱され、合成樹脂製
の各部が熱変形したり、火災等の原因となるという問題
があった。(B) Conventional Technology This type of heating control device is used, for example, to prevent abnormal heating of the base of an iron. However, in a conventional iron, for example, in Japanese Patent Laid-Open No. 63-279900, a heater is connected in series. Since one switch such as a relay is opened and closed based on the output of control means such as a microcomputer,
If the relay contacts are welded or the relay driving means fails, the heater continues to be energized until the thermal fuse operates, causing abnormal heating of the base that is the object to be heated, causing thermal deformation of each part made of synthetic resin, fire, etc. There was a problem that caused.
（ハ） 考案が解決しようとする課題 本考案は上記の点を考慮して成されたもので、リレー
接点の溶着等、開閉器の故障に起因する被加熱体の異常
加熱を確実に防止することを課題とする。(C) Problems to be solved by the present invention The present invention has been made in consideration of the above points, and reliably prevents abnormal heating of an object to be heated due to switch failure such as welding of relay contacts. This is an issue.
（ニ） 課題を解決するための手段 本考案は、被加熱体を加熱するヒータと、前記被加熱
体の温度を検出する温度検出手段と、温度設定手段と、
前記ヒータに直列接続された第１、第２の開閉器を開閉
駆動する第１、第２の駆動手段と、前記温度検出手段と
前記温度設定手段の出力に基づいて前記第２の開閉器を
閉じた後前記第１の開閉器を開閉するように前記第１、
第２の駆動手段を制御する制御手段を備え、該制御手段
は前記温度決定手段で設定される最高温度よりも高く設
定された所定温度を検出すると、前記第２の開閉器を開
成するように前記第２の駆動手段を制御する構成とした
ものである。(D) Means for Solving the Problems The present invention provides a heater for heating an object to be heated, a temperature detecting means for detecting the temperature of the object to be heated, a temperature setting means,
First and second drive means for driving the first and second switches connected in series to the heater to open and close, and the second switch based on the outputs of the temperature detection means and the temperature setting means. After closing the first switch, the first switch is opened and closed.
A control means for controlling the second drive means is provided, and the control means opens the second switch when a predetermined temperature set higher than the maximum temperature set by the temperature determination means is detected. The configuration is such that the second drive means is controlled.
（ホ） 作用 正常状態では、第２の開閉器を閉じた後、被加熱体の
温度を設定温度に維持すべく第１の開閉器を開閉するた
め、温度検出手段が最高設定温度よりも高く設定された
所定温度を検出することはない。ところが第１の開閉器
が被加熱体の温度に関係なく閉成状態となると、被加熱
体の温度が上昇し続け前記所定温度に達する。この温度
を温度検出手段が検出すると、制御手段が第２の駆動手
段を作用させて第２の開閉器を開成し、ヒータへの通電
を遮断し、被加熱体の異常加熱を防止する。(E) Action In a normal state, after closing the second switch, the first switch is opened and closed to maintain the temperature of the heated object at the set temperature, so the temperature detection means is higher than the maximum set temperature. It does not detect the set predetermined temperature. However, when the first switch is closed regardless of the temperature of the object to be heated, the temperature of the object to be heated continues to rise and reaches the predetermined temperature. When this temperature is detected by the temperature detecting means, the control means causes the second driving means to operate to open the second switch, shut off the power supply to the heater, and prevent abnormal heating of the object to be heated.
（ヘ） 実施例 本考案の一実施例を、コードレス式アイロンを例にと
って説明する。(F) Embodiment An embodiment of the present invention will be described by taking a cordless iron as an example.
まず、アイロンは、アイロンのベースを加熱するヒー
タ（１）と、ベースの温度を検出するサーミスタ等の温
度検出素子（２）と、この温度検出素子（２）の温度情
報を電気信号に変換する温度検出回路（３）と、この温
度検出回路（３）の電気信号を光などによって送信する
温度情報送信回路（４）と、ベース温度が異常に上昇し
た時溶断してヒータ（１）への通電を断つ温度ヒューズ
（５）と、ヒータ（１）への通電を行なう受電端子
（６）（６）とで構成されている。First, the iron converts a heater (1) for heating the base of the iron, a temperature detection element (2) such as a thermistor for detecting the temperature of the base, and temperature information of the temperature detection element (2) into an electric signal. The temperature detection circuit (3), the temperature information transmission circuit (4) that transmits the electric signal of the temperature detection circuit (3) by light or the like, and when the base temperature rises abnormally, it melts to the heater (1). It is composed of a thermal fuse (5) that cuts off energization and power receiving terminals (6) and (6) that energize the heater (1).
アイロンを載置するスタンドは、温度情報送信回路
（４）からの信号を受信する温度情報受信回路（７）
と、使用者が希望のベース温度を設定する温度設定手段
（８）と、ヒータ（１）に直列接続されたリレー等の第
１、第２の開閉器（９）（10）と、これら開閉器（９）
（10）を駆動するための第１、第２の駆動手段（11）
（12）と、前記温度設定手段（８）と温度情報受信回路
（７）から入力される温度情報に基づいて、第１、第２
の駆動手段（11）（12）へ制御信号を出力するマイクロ
コンピュータ等より成る制御手段（13）、及び受電端子
（６）（６）と接続される給電端子（14）（14）とで構
成されている。The stand on which the iron is placed has a temperature information receiving circuit (7) for receiving a signal from the temperature information transmitting circuit (4).
A temperature setting means (8) for setting a desired base temperature by the user, first and second switches (9) (10) such as a relay connected in series with the heater (1), and opening / closing of these switches. Bowl (9)
First and second driving means (11) for driving (10)
(12), based on the temperature information input from the temperature setting means (8) and the temperature information receiving circuit (7), first and second
Control means (13) comprising a microcomputer or the like for outputting a control signal to the driving means (11) (12), and power supply terminals (14) (14) connected to the power receiving terminals (6) (6) Has been done.
次に動作について第２図を参照して説明する。アイロ
ンをスタンドに接続し、スタンドを電源に接続する温度
制御が開始され、制御手段（13）は第２の開閉器（10）
を閉じるための信号を第２の駆動手段（12）へ出力す
る。次に、制御手段（13）は温度設定手段（８）の出力
に基づき、温度設定が「切」の場合は第１の開閉器
（９）を開成するための信号を第１の駆動手段（11）に
出力する。温度設定が「切」以外の場合は、温度情報受
信回路（７）からの受信に基づいて、ベースの温度が異
常状態検出温度（θ）よりも大きいか否か検出する。こ
の温度（θ）は、最も高い設定温度「高」（200℃）の
時のオーバーラン温度（約230℃）を考慮して250℃に設
定されている。また、温度ヒューズ（５）は、ベースが
温度（θ）に達するまでは溶断しないように設定してい
る。Next, the operation will be described with reference to FIG. The temperature control for connecting the iron to the stand and connecting the stand to the power supply is started, and the control means (13) is the second switch (10).
A signal for closing the is output to the second drive means (12). Next, the control means (13) sends a signal for opening the first switch (9) based on the output of the temperature setting means (8) to the first driving means (when the temperature setting is "OFF"). Output to 11). When the temperature setting is other than "OFF", it is detected based on the reception from the temperature information receiving circuit (7) whether the temperature of the base is higher than the abnormal state detection temperature (θ). This temperature (θ) is set to 250 ° C in consideration of the overrun temperature (about 230 ° C) at the highest set temperature “high” (200 ° C). Further, the thermal fuse (5) is set so as not to blow until the base reaches the temperature (θ).
正常時は、ベース温度が前記温度（θ）を越えること
はないので、制御手段（13）は、現在の設定温度とベー
スの検出温度を比較し、検出温度が設定温度を上まわる
と第１の開閉器（９）を開成し、一方、下まわると第２
の開閉器（９）を閉成するように、第２の駆動手段（1
1）に制御信号を出力する。この動作が繰り返される。In a normal state, the base temperature does not exceed the temperature (θ), so the control means (13) compares the current set temperature with the detected temperature of the base, and when the detected temperature exceeds the set temperature, the first Open the switch (9) of
So as to close the switch (9) of the second drive means (1
Output a control signal to 1). This operation is repeated.
ところが、第１の開閉器（９）、或いは第１の駆動手
段（11）の故障によって、第１の開閉器（９）が閉成し
たままの状態となると、ヒータ（１）への通電が継続さ
れ、ベースの温度が設定温度を越えて上昇し続ける。そ
してベースの温度が温度（θ）に達したことが温度上昇
受信回路（７）の信号により判明すると、制御手段（1
3）は第２の開閉器（10）を開くための制御信号を第２
の駆動手段（12）に出力する。その結果、第２の開閉器
（10）が開成しとヒータ（１）への通電を温度ヒューズ
（５）が溶断する前に遮断し、ベースの異常加熱による
各部の熱変形や、火災の発生等の事態を未然に防止す
る。また、温度ヒューズ（５）の交換を不要とすること
ができる。However, if the first switch (9) or the first driving means (11) fails and the first switch (9) remains closed, the heater (1) is not energized. The temperature of the base continues to rise above the set temperature. When it is determined by the signal from the temperature rise receiving circuit (7) that the temperature of the base has reached the temperature (θ), the control means (1
3) is the second control signal for opening the second switch (10).
To the driving means (12). As a result, when the second switch (10) is opened, the energization of the heater (1) is cut off before the thermal fuse (5) is melted, causing thermal deformation of each part due to abnormal heating of the base and fire occurrence. Prevent such situations. Further, it is not necessary to replace the thermal fuse (5).
（ト） 考案の効果 第１の開閉器の溶着状態による異常加熱の場合、温度
検出手段が温度設定手段で設定される最高温度より高い
温度を検出すると、温度過昇防止器が通電停止する前に
制御手段は第２の開閉器を開く。故にヒータへの通電を
遮断する時の温度が従来より低くなるので、各部品の熱
損害が小さい。(G) Effect of the invention In the case of abnormal heating due to the welding state of the first switch, when the temperature detecting means detects a temperature higher than the maximum temperature set by the temperature setting means, the overheat protector is not energized. And the control means opens the second switch. Therefore, the temperature at the time when the power supply to the heater is cut off is lower than in the conventional case, and the heat damage to each component is small.
更に温度設定手段で設定される最高温度より高い温度
を検出し、制御手段に出力する事により、制御手段は第
１の開閉器が溶着している事を判定する。この様に第１
の開閉器の故障を制御手段自体を用いて判定するため、
従来の様に別途専用の接点故障検知回路等を設ける必要
がなく、構成を簡素化できる。Furthermore, by detecting a temperature higher than the maximum temperature set by the temperature setting means and outputting it to the control means, the control means determines that the first switch is welded. Like this first
In order to determine the failure of the switch using the control means itself,
There is no need to provide a dedicated contact failure detection circuit or the like as in the conventional case, and the configuration can be simplified.
また第１の開閉器と第２の開閉器が共に故障した時、
温度過昇防止器が動作しヒータへの通電を遮断し、火災
の発生を防止する。Also, when both the first switch and the second switch have failed,
The overheat protector operates to shut off the electricity to the heater and prevent the occurrence of fire.
第１図は本考案の一実施例を示す回路ブロック図、第２
図は同実施例の動作を示すフローチャートである。 （１）……ヒータ、（２）……温度検出素子、（３）…
…温度検出回路、（８）……温度設定手段、（９）（1
0）……開閉器、（11）（12）……駆動手段、（13）…
…制御手段。FIG. 1 is a circuit block diagram showing an embodiment of the present invention, FIG.
The figure is a flow chart showing the operation of the embodiment. (1) ... Heater, (2) ... Temperature detection element, (3) ...
… Temperature detection circuit, (8) …… Temperature setting means, (9) (1
0) ... Switch, (11) (12) ... Drive means, (13) ...
… Control means.
Claims (1)
を有するアイロンと、第１および第２の開閉器と温度設
定手段と制御手段とを有し、かつ前記アイロンを載置し
給電するスタンドと、前記ベースの温度を検出する温度
検出手段とを備え、前記制御手段は前記第２の開閉器を
閉じ前記第１の開閉器を開閉し、前記検出温度を設定温
度に維持し、前記温度検出手段が前記温度設定手段で設
定される最高温度より高い温度を検出すると、前記制御
手段は前記温度過昇防止器が通電停止する前に前記第２
の開閉器を開く事を特徴とするコードレスアイロン。1. An iron having a heater for heating a base and an overheat protector, first and second switches, a temperature setting means and a control means, and the iron is placed and power is supplied. A stand and temperature detecting means for detecting the temperature of the base, and the control means closes the second switch to open and close the first switch to maintain the detected temperature at a set temperature, When the temperature detecting means detects a temperature higher than the maximum temperature set by the temperature setting means, the control means sets the second temperature before the overheat protector is stopped.
A cordless iron characterized by opening the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990090486U JP2513024Y2 (en) | 1990-08-28 | 1990-08-28 | Cordless iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990090486U JP2513024Y2 (en) | 1990-08-28 | 1990-08-28 | Cordless iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0449097U JPH0449097U (en) | 1992-04-24 |
| JP2513024Y2 true JP2513024Y2 (en) | 1996-10-02 |
Family
ID=31825288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990090486U Expired - Fee Related JP2513024Y2 (en) | 1990-08-28 | 1990-08-28 | Cordless iron |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2513024Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60138000U (en) * | 1984-02-21 | 1985-09-12 | シャープ株式会社 | electric iron |
-
1990
- 1990-08-28 JP JP1990090486U patent/JP2513024Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0449097U (en) | 1992-04-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |