JPH0573404U - Heating cooker - Google Patents
Heating cookerInfo
- Publication number
- JPH0573404U JPH0573404U JP012693U JP1269392U JPH0573404U JP H0573404 U JPH0573404 U JP H0573404U JP 012693 U JP012693 U JP 012693U JP 1269392 U JP1269392 U JP 1269392U JP H0573404 U JPH0573404 U JP H0573404U
- Authority
- JP
- Japan
- Prior art keywords
- halogen heater
- switch
- heater
- energized
- control 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
- 238000010438 heat treatment Methods 0.000 title claims description 6
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 48
- 150000002367 halogens Chemical class 0.000 claims abstract description 48
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000001052 transient effect Effects 0.000 description 4
- 238000010411 cooking Methods 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Control Of Resistance Heating (AREA)
- Electric Stoves And Ranges (AREA)
Abstract
(57)【要約】
【目的】 ハロゲンヒータの通電時に流れる突入電流を
小さくして、ハロゲンヒータへの給電を制御するスイッ
チ手段の破壊、又は溶着を防止し、信頼性の向上を図
る。
【構成】 ハロゲンヒータ２付勢に際し、制御手段３は
通電開始の所定時間の間、位相制御信号をスイッチ手段
３に出力し、印加電圧の実効値を低下させてハロゲンヒ
ータ２に給電して、ハロゲンヒータのタングステン線を
発熱させる。その後、制御手段４は定格電圧でハロゲン
ヒータ２を付勢する。
(57) [Abstract] [Purpose] The inrush current flowing when the halogen heater is energized is reduced to prevent breakage or welding of the switch means for controlling power supply to the halogen heater, thereby improving reliability. When the halogen heater 2 is energized, the control means 3 outputs a phase control signal to the switch means 3 for a predetermined time to start energization, lowers the effective value of the applied voltage, and supplies power to the halogen heater 2. Heat the tungsten wire of the halogen heater. Then, the control means 4 energizes the halogen heater 2 at the rated voltage.
Description
【０００１】[0001]
本考案は、食品を調理する熱源として、ハロゲンヒータ（ランプヒータ）を備 えた加熱調理器に関するものである。 The present invention relates to a heating cooker equipped with a halogen heater (lamp heater) as a heat source for cooking food.
【０００２】[0002]
通常、抵抗加熱ヒータはヒータの初期温度の変化に係わらず、ヒータ付勢時の 過渡電流と定格電流との差が小さく、抵抗加熱ヒータへの給電を制御するスイッ チ手段の、過渡電流による破壊、又は溶着は生じ難い。 Normally, the resistance heater has a small difference between the transient current and the rated current when the heater is energized regardless of the change in the initial temperature of the heater, and the switch means for controlling the power supply to the resistance heater is destroyed by the transient current. , Or welding is unlikely to occur.
【０００３】 しかし、特開平３−１０１６号公報に開示の、ハロゲンヒータ（ランプヒータ ）を備えた加熱調理器では、ハロゲンヒータに電圧が印加されたときに流入する 過渡電流（以下突入電流という）が、定格電流に比べ非常に大きい。However, in the heating cooker provided with the halogen heater (lamp heater) disclosed in Japanese Patent Laid-Open No. 3-1016, a transient current (hereinafter referred to as inrush current) that flows in when a voltage is applied to the halogen heater. However, it is much larger than the rated current.
【０００４】 例えば、図４は６５０ワットのハロゲンヒータを、電源位相の０ボルトに同期 して通電したときの、通電直後の電流の変化状態を示し、ハロゲンヒータのタン グステン線がある程度暖まる迄の、通電直後の３〜５サイクルの期間に大きな電 流が流れる。特に、最初の１サイクルでは定常電流（８アンペン）の約１０倍の 電流がハロゲンヒータへの給電を制御するスイッチに流れる。従って、調理時間 の短縮化を図るためのハロゲンヒータの定格電流の増大と相まって、ハロゲンヒ ータへの給電を制御するスイッチの破壊、又は溶着が生じ易く、スイッチの寿命 等の信頼性に悪影響を与えていた。For example, FIG. 4 shows a state of change in current immediately after energization of a 650 watt halogen heater when it is energized in synchronism with 0 volt of the power supply phase. , A large current flows during the period of 3 to 5 cycles immediately after energization. In particular, in the first cycle, about 10 times the steady current (8 amps) flows through the switch that controls the power supply to the halogen heater. Therefore, in combination with the increase in the rated current of the halogen heater for shortening the cooking time, the switch controlling the power supply to the halogen heater is easily broken or welded, which adversely affects the reliability of the switch life. I was giving.
【０００５】[0005]
ハロゲンヒータの通電時に流れる突入電流を小さくして、ハロゲンヒータへの 給電を制御するスイッチ手段の破壊、又は溶着を防止し、信頼性の向上を図る。 The inrush current flowing when the halogen heater is energized is reduced to prevent breakage or welding of the switch means for controlling power supply to the halogen heater, thereby improving reliability.
【０００６】[0006]
【課題を解決するための手段】 本考案は、食品を加熱するハロゲンヒータと、このハロゲンヒータへの給電を 制御するスイッチ手段と、通電開始時の所定時間、ハロゲンヒータに印加する電 圧の実効値を低下させるべく上記スイッチ手段を制御する制御手段とを設ける。[Means for Solving the Problems] The present invention provides a halogen heater for heating food, a switch means for controlling power supply to the halogen heater, and an effective voltage applied to the halogen heater for a predetermined time at the start of energization. Control means for controlling the switch means to reduce the value.
【０００７】[0007]
ハロゲンヒータ付勢に際し、所定時間、電圧の実効値を低下させてハロゲンヒ ータに給電して、ハロゲンヒータのタングステン線の温度を上昇させ、その後定 格電圧で付勢するようにしたから、ハロゲンヒータの突入電流を小さくできる。 When the halogen heater is energized, the effective value of the voltage is reduced for a predetermined period of time to supply power to the halogen heater, raise the temperature of the tungsten wire of the halogen heater, and then energize it at the rated voltage. The inrush current of the heater can be reduced.
【０００８】[0008]
図１及び図２は本考案実施例の回路構成、及びハロゲンヒータ駆動波形図を示 し、１は商用電源、２は商用電源１に接続され食品を加熱するハロゲンヒータ、 ３はハロゲンヒータ２と直列に接続され、ハロゲンヒータ２への電力供給を制御 するスイッチ手段、このスイッチ手段３にはトライアックが用いられる。４はト ライアック３の導通を制御する制御手段、この制御手段４はマイクロコンピュー タを含む電子制御回路で構成される。 1 and 2 show a circuit configuration and a halogen heater driving waveform diagram of an embodiment of the present invention, where 1 is a commercial power source, 2 is a halogen heater connected to the commercial power source 1 to heat food, and 3 is a halogen heater 2. A triac is used as the switch means, which is connected in series and controls the power supply to the halogen heater 2, and the switch means 3. Reference numeral 4 is a control means for controlling the conduction of the triac 3, and this control means 4 is composed of an electronic control circuit including a microcomputer.
【０００９】 上記構成において、食品を加熱するべくハロゲンヒータ２の付勢に際し、制御 手段４は通電開始の所定時間（Ｔ1）の間、トライアック３に商用電源１の位相 制御信号を出力して、例えば、ハロゲンヒータ２に通電比率２５％の電力を印加 してハロゲンヒータのタングステン線を発熱させる。そして、所定時間（Ｔ1） 経過後、制御手段４からトライアック３に連続通電の信号が出力され、通電比率 １００％の定格電力でハロゲンヒータ２を付勢する。In the above structure, when the halogen heater 2 is energized to heat the food, the control means 4 outputs the phase control signal of the commercial power source 1 to the triac 3 for a predetermined time (T 1 ) of starting energization. For example, the tungsten heater of the halogen heater is made to generate heat by applying an electric power having an energization ratio of 25% to the halogen heater 2. Then, after a lapse of a predetermined time (T 1 ), a signal of continuous energization is output from the control means 4 to the triac 3, and the halogen heater 2 is energized with a rated power of 100% energization ratio.
【００１０】 尚、位相制御によりハロゲンヒータ２を付勢する所定時間（Ｔ1）は、ハロゲ ンヒータの特性にも左右される為、実験にて決定されるべきであるが、突入電流 を効果的に抑制する最小期間は、商用電源波形の５〜１０サイクルである。The predetermined time (T 1 ) for energizing the halogen heater 2 by the phase control depends on the characteristics of the halogen heater and should be determined by experiment, but the inrush current is effective. The minimum period to suppress is 5 to 10 cycles of the commercial power waveform.
【００１１】 図３は他の実施例の回路構成を示し、上記実施例と同一部分は同一符号を付し 、相違する点のみ説明する。５はハロゲンヒータ２と直列に接続され商用電源１ からの電力供給を制御する第１スイッチ、６はハロゲンヒータ２通電時に発生す る突入電流を制限する抵抗、７は抵抗６を介してハロゲンヒータ２の付勢を制御 する第２スイッチ、この第２スイッチ７と抵抗６との直列回路は、上記第１スイ ッチ５と並列に接続される。FIG. 3 shows a circuit configuration of another embodiment. The same parts as those in the above embodiment are designated by the same reference numerals and only different points will be described. Reference numeral 5 is a first switch which is connected in series with the halogen heater 2 and controls the power supply from the commercial power source 1, 6 is a resistor for limiting the inrush current generated when the halogen heater 2 is energized, and 7 is a halogen heater via the resistor 6. A second switch for controlling the urging of the second switch, a series circuit of the second switch 7 and the resistor 6, is connected in parallel with the first switch 5.
【００１２】 そして、ハロゲンヒータ２の付勢は、まず、制御手段４からＰｃの信号を出力 して第２スイッチ駆動コイル７ａを付勢して第２スイッチ７をオンし、抵抗６を 介してハロゲンヒータ２に給電して、ハロゲンヒータのタングステン線を低電力 で発熱させる。その後、所定時間経過すると制御手段４は、Ｐｃの信号を消勢し て第２スイッチをオフすると同時に、Ｐｄ信号を出力して第１スイッチ駆動コイ ル５ａを付勢して第１スイッチをオンして、ハロゲンヒータ２を定格電力で付勢 する。このように第１スイッチ５と第２スイッチ７とを切り替え付勢することに より、第２スイッチを駆動するための制御電源容量の考慮が不要となる。The halogen heater 2 is energized by first outputting a Pc signal from the control means 4 to energize the second switch drive coil 7a to turn on the second switch 7 and then via the resistor 6. Power is supplied to the halogen heater 2 to heat the tungsten wire of the halogen heater with low power. After that, when a predetermined time elapses, the control means 4 deactivates the Pc signal to turn off the second switch, and at the same time outputs the Pd signal to activate the first switch drive coil 5a to turn on the first switch. Then, the halogen heater 2 is energized at the rated power. By switching and energizing the first switch 5 and the second switch 7 in this manner, it is not necessary to consider the control power supply capacity for driving the second switch.
【００１３】[0013]
ハロゲンヒータ付勢に際し、定格電圧より低い電圧でハロゲンヒータのタング ステン線の温度を上昇させた後、定格電圧で付勢するようにしたから、ハロゲン ヒータの突入電流を抑制できる。従って、ハロゲンヒータへの給電を制御するス イッチ手段の破壊、又は溶着が防止でき信頼性の向上が図れる。更に、耐サ−ジ 電流の小さいスイッチが使用でき、コスト低減が図れる。 When the halogen heater is energized, the temperature of the tungsten heater wire of the halogen heater is raised at a voltage lower than the rated voltage, and then it is energized at the rated voltage, so that the inrush current of the halogen heater can be suppressed. Therefore, the breakage or welding of the switch means for controlling the power supply to the halogen heater can be prevented, and the reliability can be improved. Furthermore, a switch with a small surge resistance can be used, and the cost can be reduced.
【図１】本考案実施例の回路図である。FIG. 1 is a circuit diagram of an embodiment of the present invention.
【図２】本考案実施例のハロゲンヒータ駆動波形図であ
る。FIG. 2 is a driving waveform diagram of a halogen heater according to an embodiment of the present invention.
【図３】本考案の他の実施例の回路図である。FIG. 3 is a circuit diagram of another embodiment of the present invention.
【図４】ハロゲンヒータ付勢時の過渡電流の波形図であ
る。FIG. 4 is a waveform diagram of a transient current when a halogen heater is energized.
２ ハロゲンヒータ ３ スイッチ手段 ４ 制御手段 2 Halogen heater 3 Switch means 4 Control means
Claims (1)
ハロゲンヒータへの給電を制御するスイッチ手段と、通
電開始時の所定時間、ハロゲンヒータに印加する電圧の
実効値を低下させるべく上記スイッチ手段を制御する制
御手段とからなる加熱調理器。1. A halogen heater for heating food, a switch means for controlling power supply to the halogen heater, and the switch means for reducing an effective value of a voltage applied to the halogen heater for a predetermined time at the start of energization. A heating cooker including control means for controlling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP012693U JPH0573404U (en) | 1992-03-13 | 1992-03-13 | Heating cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP012693U JPH0573404U (en) | 1992-03-13 | 1992-03-13 | Heating cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0573404U true JPH0573404U (en) | 1993-10-08 |
Family
ID=11812462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP012693U Pending JPH0573404U (en) | 1992-03-13 | 1992-03-13 | Heating cooker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0573404U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03215121A (en) * | 1990-01-18 | 1991-09-20 | Matsushita Electric Ind Co Ltd | power control device |
-
1992
- 1992-03-13 JP JP012693U patent/JPH0573404U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03215121A (en) * | 1990-01-18 | 1991-09-20 | Matsushita Electric Ind Co Ltd | power control device |
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