JPH11224769A - High-frequency heating device - Google Patents
High-frequency heating deviceInfo
- Publication number
- JPH11224769A JPH11224769A JP10024975A JP2497598A JPH11224769A JP H11224769 A JPH11224769 A JP H11224769A JP 10024975 A JP10024975 A JP 10024975A JP 2497598 A JP2497598 A JP 2497598A JP H11224769 A JPH11224769 A JP H11224769A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- frequency
- heating
- capacitor
- relay
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Control Of High-Frequency Heating Circuits (AREA)
- Electric Ovens (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、加熱室内に収納さ
れる食品を高周波エネルギーによって加熱調理する高周
波加熱装置に関するものであり、特に高周波加熱装置が
使用されていないときの電力の消費を軽減するようにし
たものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-frequency heating apparatus for cooking food stored in a heating chamber with high-frequency energy, and in particular, to reduce power consumption when the high-frequency heating apparatus is not used. It is like that.
【０００２】[0002]
【従来の技術】従来、高周波発振器（マグネトロン）の
駆動回路に利用されている半波倍電圧整流回路に関して
は、電源周波数が５０Ｈｚ、６０Ｈｚのいずれに場合に
も対応可能とするために、整流回路のコンデンサー容量
を切り換えるための高圧リレーを備えておき、電源周波
数が５０Ｈｚの場合に高圧リレーをオンさせることによ
り高圧コンデンサーの並列接続を成立させてコンデンサ
ー容量を大きくし、逆に６０Ｈｚの場合に高圧リレーを
オフさせて高圧コンデンサーの並列接続を解除してコン
デンサー容量を小さくするようにしていた。その場合、
電源周波数が５０Ｈｚで使われる場合には、高周波加熱
装置の使用不使用にかかわらず、電源プラグが電源コン
セントに接続されている間は常に高圧リレーをオンの状
態にして高圧コンデンサーの並列接続を継続させてい
た。2. Description of the Related Art Conventionally, a half-wave voltage doubler rectifier circuit used for a driving circuit of a high-frequency oscillator (magnetron) has a rectifier circuit in order to be able to cope with a power supply frequency of 50 Hz or 60 Hz. A high-voltage relay for switching the capacitor capacity is provided, and when the power supply frequency is 50 Hz, the high-voltage relay is turned on to establish a parallel connection of the high-voltage capacitors to increase the capacitor capacity. By turning off the relay, the parallel connection of the high-voltage capacitor was released to reduce the capacity of the capacitor. In that case,
When the power supply frequency is used at 50 Hz, regardless of whether the high-frequency heating device is used or not, the high-voltage relay is always turned on while the power plug is connected to the power outlet, and the high-voltage condenser is connected in parallel. I was letting it.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら上述した
従来例においては、高圧リレーをオンさせておくための
電力が常時消費される（例えば約１．５Ｗ／Ｈ程度、高
周波加熱装置の使用状況にもよるが、年間約１３ＫＷ程
度）ため、省エネの観点から、問題があった。However, in the above-mentioned conventional example, the power for keeping the high-voltage relay on is always consumed (for example, about 1.5 W / H, depending on the usage of the high-frequency heating device). (However, about 13 KW per year), there was a problem from the viewpoint of energy saving.
【０００４】この問題を解決する手法として、加熱動作
を実行するその都度、高圧リレーをオン作動させ、つま
り不使用時にはオフ動作させて、無駄な電力消費を抑え
ることが考えられたが、高圧リレーの作動音が意外と大
きいため、静粛性の観点からさらに一層の改善が求めら
れる。As a method of solving this problem, it has been considered that a high-voltage relay is turned on each time a heating operation is performed, that is, turned off when not in use, thereby suppressing wasteful power consumption. Since the operating noise is unexpectedly loud, further improvement is required from the viewpoint of quietness.
【０００５】[0005]
【課題を解決するための手段】本発明は、上述の課題を
解決するものであり、そのために、高圧リレーにより常
設高圧コンデンサーと増設用高圧コンデンサーの少なく
とも２個の高圧コンデンサーの並列の接続を電源周波数
の違いに合わせてオンオフすることによってコンデンサ
ー容量が増減切り替えられるようにした高周波発振器駆
動用半波倍電圧整流回路と、電源周波数を判別するとと
もにその判別された周波数に応じて高圧リレーをオンオ
フ切り替え駆動する制御回路とからなる高周波加熱装置
において、発音器を設け、制御回路は、加熱の開始時
に、判別された電源周波数により高周波発振器駆動用半
波倍電圧整流回路の高圧コンデンサー容量を増大させる
必要のあるときには、発音器を所定の時間をかけて鳴動
させるとともにその鳴動中に高圧リレーをオン動作させ
て常設高圧コンデンサーと増設用高圧コンデンサーの並
列接続を成立させ、加熱動作の終了時に発音器を所定の
時間をかけて再び鳴動させるとともに、その鳴動中に高
圧リレーをオフ動作させて常設高圧コンデンサーと増設
用高圧コンデンサーの並列接続を解除するようにして高
周波加熱装置を構成した。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and therefore, a parallel connection of at least two high-voltage capacitors, a permanent high-voltage capacitor and an additional high-voltage capacitor, is provided by a high-voltage relay. A half-wave voltage rectifier circuit for driving a high-frequency oscillator that switches the capacitor capacity up and down by turning on and off according to the difference in frequency, and switching the high-voltage relay on and off according to the determined power frequency and the determined frequency In a high-frequency heating device comprising a driving circuit, a sound generator is provided, and at the start of heating, the control circuit needs to increase the high-voltage capacitor capacity of the half-wave voltage rectifying circuit for driving the high-frequency oscillator by the determined power supply frequency. When there is a sound, the sounder sounds over a predetermined time and During operation, the high-voltage relay is turned on to establish a parallel connection between the permanent high-voltage capacitor and the additional high-voltage capacitor, and at the end of the heating operation, the sounder is sounded again for a predetermined period of time. Was turned off to release the parallel connection between the permanent high-voltage condenser and the additional high-voltage condenser, thereby forming a high-frequency heating apparatus.
【０００６】[0006]
【発明の実施の形態】本発明にあっては、制御回路が、
加熱の開始時に発音器を所定の時間をかけて鳴動させる
とともに、判別した電源周波数によりコンデンサーの容
量を大きくする必要のあるときには、その鳴動中に高圧
リレーをオン動作させ、その後の加熱動作終了時に発音
器を所定の時間をかけて再び鳴動させるとともに、その
鳴動中に高圧リレーをオフ動作させるようにして、高周
波加熱装置の不使用時の高圧リレーの駆動電力が無駄に
消費されないようにするとともに、加熱開始時のみなら
ず加熱終了時にも高圧リレーの作動音が発音器から発生
する音によって効果的にマスキングされるようにした。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a control circuit
At the start of heating, the sounder is sounded over a predetermined period of time, and when it is necessary to increase the capacity of the capacitor according to the determined power supply frequency, the high-voltage relay is turned on during the sounding, and at the end of the subsequent heating operation The sounding device is sounded again over a predetermined period of time, and the high-voltage relay is turned off during the sounding so that the driving power of the high-voltage relay when the high-frequency heating device is not used is not wasted. In addition, the operation sound of the high voltage relay is effectively masked by the sound generated from the sounder not only at the start of heating but also at the end of heating.
【０００７】[0007]
【実施例】以下本発明の一実施例を図面を用いて説明す
る。An embodiment of the present invention will be described below with reference to the drawings.
【０００８】図１において、１、２、３はドア（図示せ
ず）の開閉動作に連動してオンオフするスイッチで、図
示の状態はドアが開いている状態である。４は電源ヒュ
ーズであり、５は庫内照明用のオーブンランプ、６はマ
グネトロン冷却用のファンモーター、７はオーブンラン
プ５とファンモーター６の電源への接続をオンオフする
リレーである。In FIG. 1, switches 1, 2, and 3 are turned on and off in conjunction with opening and closing operations of a door (not shown). The illustrated state is a state where the door is open. 4 is a power fuse, 5 is an oven lamp for interior lighting, 6 is a fan motor for cooling the magnetron, and 7 is a relay for turning on and off the connection between the oven lamp 5 and the fan motor 6 to the power supply.
【０００９】８は高圧トランスで、９はこの高圧トラン
ス８の電源への接続をオンオフするリレーであり、１
０、１１、１２は高圧トランス８の二次側に形成された
高圧半波倍電圧整流回路の高圧コンデンサーと高圧ダイ
オードである。Reference numeral 8 denotes a high-voltage transformer, and 9 denotes a relay for turning on / off the connection of the high-voltage transformer 8 to a power supply.
Reference numerals 0, 11, and 12 denote a high-voltage capacitor and a high-voltage diode of a high-voltage half-wave voltage rectifier circuit formed on the secondary side of the high-voltage transformer 8.
【００１０】上述半波倍電圧整流を構成する高圧コンデ
ンサー１０、１１のうちの高圧コンデンサー１０は、上
述整流回路に対して常時接続されている常設の高圧コン
デンサーであり、電源周波数が６０Ｈｚのときに単独で
動作するものである。他方、高圧コンデンサー１１は、
電源周波数が５０Ｈｚのときに上述常設高圧コンデンサ
ー１０に並列接続して整流回路の合成コンデンサー容量
を増大させるための増設用の高圧コンデンサーである。
１３はこの増設用高圧コンデンサー１１の整流回路への
接続をオンオフ切り替える高圧リレーであり、１４は高
周波発振器のマグネトロンである。The high-voltage condenser 10 of the high-voltage condensers 10 and 11 constituting the half-wave voltage rectification is a permanent high-voltage condenser which is always connected to the rectification circuit. It works independently. On the other hand, the high voltage condenser 11
This is an additional high-voltage capacitor connected in parallel to the permanent high-voltage capacitor 10 when the power supply frequency is 50 Hz to increase the combined capacitor capacity of the rectifier circuit.
Reference numeral 13 denotes a high-voltage relay that switches on and off the connection of the additional high-voltage capacitor 11 to the rectifier circuit, and 14 denotes a magnetron of a high-frequency oscillator.
【００１１】１５は低電圧電源を生成する低圧トランス
であり、１６はドアの開閉に関連動作して信号を出力す
るドア開閉センサーとしてのスイッチ、１７は加熱動作
を開始させるときに操作されるスタートスイッチ、１８
は発音器のブザーである。そして、１９は制御回路であ
る。Reference numeral 15 denotes a low-voltage transformer for generating a low-voltage power supply. Reference numeral 16 denotes a switch as a door opening / closing sensor that outputs a signal in association with opening / closing of a door. Reference numeral 17 denotes a start operated when starting a heating operation. Switch, 18
Is a sounder buzzer. Reference numeral 19 denotes a control circuit.
【００１２】このように構成された本発明の一実施例に
おいて、スタートスイッチ１７が操作されると、制御回
路１９は、低圧トランス１５の低電圧を取り入れて作動
を開始するとともに、スイッチ１６の信号を取り込んで
ドアの開閉状態を判別する。In the embodiment of the present invention having the above-described structure, when the start switch 17 is operated, the control circuit 19 starts the operation by taking in the low voltage of the low-voltage transformer 15 and simultaneously outputs the signal of the switch 16. To determine the open / closed state of the door.
【００１３】ドアが閉まっていると判断されたときに
は、制御回路１９は、リレー７とリレー９を駆動してオ
ンさせ、オーブンランプ５とファンモーター６の作動を
開始させる。この間、制御回路１９は電源の周波数を判
別し、その周波数が６０Ｈｚのときには高圧リレー１３
を作動させることなく図示のまま（開いたまま）の状態
とし、他方５０Ｈｚのときには高圧リレー１３をオン作
動させて、常設高圧コンデンサー１０と増設用高圧コン
デンサー１１の並列接続を成立させ、高圧コンデンサー
の合成容量を増大させる。かつ、その高圧リレー１３の
作動音の発生に合わせてブザー１８を所定時間駆動し、
騒音である高圧リレー１３の作動音をその鳴動音により
マスキングする。この間にはまた、マグネトロン１４の
作動も開始され、所定時間に亘って高周波エネルギーの
発生が行なわれる。When it is determined that the door is closed, the control circuit 19 drives the relays 7 and 9 to turn them on, and starts the operation of the oven lamp 5 and the fan motor 6. During this time, the control circuit 19 determines the frequency of the power supply.
Is not shown and remains open as shown, while at 50 Hz, the high voltage relay 13 is turned on to establish the parallel connection of the permanent high voltage condenser 10 and the additional high voltage condenser 11, and Increase the combined capacity. In addition, the buzzer 18 is driven for a predetermined time in accordance with the generation of the operation sound of the high voltage relay 13,
The operation sound of the high-voltage relay 13 which is noise is masked by the sound. During this time, the operation of the magnetron 14 is also started, and high-frequency energy is generated for a predetermined time.
【００１４】そして、マグネトロン１４の駆動が終了し
たときには、制御回路１９はリレー７、９及び高圧リレ
ー１３の駆動を停止し、その際高圧リレー１３の作動音
（騒音）を耳障りなものでなくするためにブザー１８を
所定時間再駆動する。When the driving of the magnetron 14 is completed, the control circuit 19 stops the driving of the relays 7, 9 and the high voltage relay 13, so that the operation sound (noise) of the high voltage relay 13 is not unpleasant. Therefore, the buzzer 18 is driven again for a predetermined time.
【００１５】これにより、増設用高圧コンデンサー１１
のオンオフを行なう高圧リレー１３は、電源周波数が５
０Ｈｚの場合のしかも加熱動作時にだけ駆動されること
になったので、従来問題になっていた不使用時の電力消
費がなくなり、所期の省エネ目標が達成された。As a result, the additional high-voltage condenser 11
The high-voltage relay 13 for turning on and off the power supply has a power supply frequency of 5
Since it is driven only at the time of 0 Hz and at the time of the heating operation, the power consumption at the time of non-use which has conventionally been a problem is eliminated, and the intended energy saving target is achieved.
【００１６】また、騒音発生源である高圧リレー１３の
オンオフ作動時にブザー１８を鳴動させて高圧リレー作
動騒音のマスキングが行なわれるようにしたので、加熱
動作の初めと最後に不快音が発生しないで済むようにな
った。Further, since the buzzer 18 is sounded at the time of turning on / off the high voltage relay 13 which is a noise generating source to mask the operation noise of the high voltage relay, unpleasant noise does not occur at the beginning and end of the heating operation. I'm done.
【００１７】[0017]
【発明の効果】以上説明したように本発明によれば、マ
グネトロン駆動用高圧整流回路の高圧コンデンサーの容
量を、電源周波数に合わせて高圧リレーを作動させて増
減切り替えることにより、５０Ｈｚ、６０Ｈｚのいずれ
の周波数でも正常な使用を可能にしている高周波加熱装
置において、５０Ｈｚの電源で作動させる際の、高圧リ
レーを作動させてコンデンサー容量を増大させなければ
ならない場合でも、高圧リレーの動作は加熱動作が行な
われている間だけなので、そのほかのときにリレーの駆
動が不要なため、無駄な電力を消費しないで済むように
なった。As described above, according to the present invention, the capacity of the high-voltage capacitor in the high-voltage rectifier circuit for driving the magnetron is switched between 50 Hz and 60 Hz by operating the high-voltage relay in accordance with the power supply frequency. In a high-frequency heating device that enables normal use at a frequency of 50 Hz, even when it is necessary to operate a high-voltage relay to increase the capacitor capacity when operating with a power supply of 50 Hz, the heating operation of the high-voltage relay Since it is only during the operation, there is no need to drive the relay at other times, so that unnecessary power is not consumed.
【００１８】また、高圧リレーの作動時の騒音をブザー
等の発音器の音をもってマスキングするようにしたの
で、リレーの作動の度に不快騒音に悩まされることがな
くなった。Further, since the noise during the operation of the high-voltage relay is masked by the sound of a sounding device such as a buzzer, the trouble of unpleasant noise is avoided each time the relay is operated.
【００１９】以上により、商品性を犠牲にすることな
く、省エネ性の優れた高周波加熱装置を実現することが
できた。As described above, a high-frequency heating device excellent in energy saving can be realized without sacrificing commercial value.
【図１】本発明の高周波加熱装置の電気回路図である。FIG. 1 is an electric circuit diagram of a high-frequency heating device according to the present invention.
１０ 常設高圧コンデンサー １１ 増設用高圧コンデンサー １２ 高圧ダイオード １３ 高圧リレー １４ マグネトロン １５ 低圧トランス １６ スイッチ １７ スタートスイッチ １８ ブザー １９ 制御回路 Reference Signs List 10 permanent high-voltage condenser 11 high-voltage condenser for extension 12 high-voltage diode 13 high-voltage relay 14 magnetron 15 low-voltage transformer 16 switch 17 start switch 18 buzzer 19 control circuit
Claims (1)
と増設用高圧コンデンサーの少なくとも２個の高圧コン
デンサーの並列の接続を電源周波数の違いに合わせてオ
ンオフすることによってコンデンサー容量が増減切り替
えられるようにした高周波発振器駆動用半波倍電圧整流
回路と、電源周波数を判別するとともにその判別された
周波数に応じて高圧リレーをオンオフ切り替え駆動する
制御回路とからなる高周波加熱装置において、発音器
（１８）を設け、前記制御回路（１９）は、加熱の開始
時に、判別された電源周波数により前記高周波発振器駆
動用半波倍電圧整流回路の高圧コンデンサー容量を増大
させる必要のあるときには、前記発音器（１８）を所定
の時間をかけて鳴動させるとともにその鳴動中に前記高
圧リレー（１３）をオン動作させて前記常設高圧コンデ
ンサー（１０）と前記増設用高圧コンデンサー（１１）
の並列接続を成立させ、加熱動作の終了時に前記発音器
（１８）を所定の時間をかけて再び鳴動させるととも
に、その鳴動中に前記高圧リレー（１３）をオフ動作さ
せて前記常設高圧コンデンサー（１０）と前記増設用高
圧コンデンサー（１１）の並列接続を解除するようにし
たことを特徴とする高周波加熱装置。1. A high-frequency oscillator in which at least two high-voltage capacitors, a permanent high-voltage capacitor and an additional high-voltage capacitor, are turned on and off by a high-voltage relay in accordance with a difference in power supply frequency, so that the capacitance of the capacitor can be changed. A high-frequency heating device including a driving half-wave voltage rectifying circuit and a control circuit that determines a power supply frequency and switches on and off a high-voltage relay according to the determined frequency; At the start of heating, when it is necessary to increase the high-voltage capacitor capacity of the high-frequency oscillator driving half-wave voltage rectifier circuit by the determined power supply frequency at the start of heating, the control circuit (19) sets the sound generator (18) to a predetermined voltage. Slow the sound over time and turn off the high voltage relay (13) during the sound. The permanent high-voltage condenser (10) and the additional high-voltage condenser (11)
At the end of the heating operation, the sounder (18) is sounded again for a predetermined period of time, and the high-voltage relay (13) is turned off during the sounding to make the permanent high-voltage condenser ( A high-frequency heating apparatus characterized in that the parallel connection between the extension high-voltage condenser (10) and the additional high-voltage condenser (11) is released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10024975A JPH11224769A (en) | 1998-02-06 | 1998-02-06 | High-frequency heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10024975A JPH11224769A (en) | 1998-02-06 | 1998-02-06 | High-frequency heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11224769A true JPH11224769A (en) | 1999-08-17 |
Family
ID=12152988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10024975A Pending JPH11224769A (en) | 1998-02-06 | 1998-02-06 | High-frequency heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11224769A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103634957A (en) * | 2012-08-27 | 2014-03-12 | 戴政祺 | High frequency heating device and frequency control method thereof |
-
1998
- 1998-02-06 JP JP10024975A patent/JPH11224769A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103634957A (en) * | 2012-08-27 | 2014-03-12 | 戴政祺 | High frequency heating device and frequency control method thereof |
| CN103634957B (en) * | 2012-08-27 | 2015-09-09 | 戴政祺 | High frequency heating device and frequency control method thereof |
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