JP2000111060A - Control circuit for cooking appliance - Google Patents

Control circuit for cooking appliance

Info

Publication number
JP2000111060A
JP2000111060A JP11187279A JP18727999A JP2000111060A JP 2000111060 A JP2000111060 A JP 2000111060A JP 11187279 A JP11187279 A JP 11187279A JP 18727999 A JP18727999 A JP 18727999A JP 2000111060 A JP2000111060 A JP 2000111060A
Authority
JP
Japan
Prior art keywords
power supply
control unit
relay
door
relay contact
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.)
Granted
Application number
JP11187279A
Other languages
Japanese (ja)
Other versions
JP3169011B2 (en
Inventor
Hirochika Aoki
泰親 青木
Takahito Okutsu
孝仁 奥津
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP18727999A priority Critical patent/JP3169011B2/en
Publication of JP2000111060A publication Critical patent/JP2000111060A/en
Application granted granted Critical
Publication of JP3169011B2 publication Critical patent/JP3169011B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Landscapes

  • Constitution Of High-Frequency Heating (AREA)
  • Electric Ovens (AREA)
  • Electric Stoves And Ranges (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)

Abstract

PROBLEM TO BE SOLVED: To simplify the double breaking configuration of a load by a relay for turning on and off a power to a control part in the control circuit of a cooking appliance such as a microwave range. SOLUTION: A control circuit for a cooking appliance comprises a power source 4, a control part 12 to which electric power is supplied from the power source 4, a load part 6 controlled by the control part 12, a relay contact 10a located at least on one side of the power source 4 to switch on and off the power line of the control part 12 and the load part 6, a relay contact 7a located at a position opposite to the relay contact 10a with respect to the power source 4 to turn on and off a power to the load part 6, an interlock switch 5 located between the control part 12 and the load part 6 to interlock with the opening and closing operation of a door and an open monitor switch 15 connected in parallel with the relay contact 10a. The electric power is supplied to the control part 12 from the power source 4 through the open monitor switch 15 upon opening the door so that the control part 12 operates, the relay contact 10a is turned on and the double breaking relay of the load part 6 is eliminated.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は電子レンジ、電気オ
ーブン、トースターなどの、調理器の制御回路に関する
ものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control circuit for a cooking device such as a microwave oven, an electric oven and a toaster.

【0002】[0002]

【従来の技術】調理器たとえば電子レンジは、図2に示
すように、本体1の前面に開閉自在な扉2を備え、扉2
は本体1の加熱室の開口に対応している。加熱室内に
は、高周波発生装置6から高周波電波が供給されるよう
になっている。操作パネル3には、調理条件を設定する
キーと調理状態を表わす表示部等が設けられている。
2. Description of the Related Art As shown in FIG. 2, a cooking device such as a microwave oven has a door 2 which can be opened and closed on the front surface of a main body 1, and the door 2 can be opened and closed.
Corresponds to the opening of the heating chamber of the main body 1. A high-frequency electric wave is supplied from the high-frequency generator 6 into the heating chamber. The operation panel 3 is provided with keys for setting cooking conditions, a display unit for indicating a cooking state, and the like.

【0003】図3は従来の電子レンジの制御回路図であ
る。4は商用電源で、この電源4にインターロックスイ
ッチ5、負荷部であるところの高周波発生装置6、負荷
部を電源4より両切りするためのリレー接点18aと、
過電流保護装置であるとことのヒューズ8が接続されて
いる。リレー18は、負荷部の高周波発生装置6を電源
4より両切りにするために設けられ、万が一負荷部の高
周波発生装置6が地絡しても、感電及び火災の危険に対
し、より安全性を確保するために設けられている。
FIG. 3 is a control circuit diagram of a conventional microwave oven. Reference numeral 4 denotes a commercial power supply. The power supply 4 includes an interlock switch 5, a high-frequency generator 6 as a load unit, a relay contact 18a for disconnecting the load unit from the power supply 4, and
The fuse 8 which is an overcurrent protection device is connected. The relay 18 is provided to cut off the high-frequency generator 6 of the load from the power supply 4 so that even if the high-frequency generator 6 of the load is grounded, the relay 18 increases safety against electric shock and fire. It is provided to secure.

【0004】さらに、電源4に対し、インターロックス
イッチ5、ヒューズ8を直列に介してモニタースイッチ
9が接続されている。このモニタースイッチ9は、扉2
の閉時にオフし開時にオンするものである。
Further, a monitor switch 9 is connected to the power supply 4 via an interlock switch 5 and a fuse 8 in series. This monitor switch 9 is
Is turned off when closed and turned on when opened.

【0005】また、電源4に対して扉2の開時にオンす
るオープンモニタースイッチ15と、このオープンモニ
タースイッチ15と並列に接続されたリレー接点10a
と直列に介して降圧トランス11が接続されている。制
御部12は、降圧トランス11で降圧した電源で構成す
る電源回路とマイクロコンピュータ及びその周辺回路か
らなり、電子レンジ全体の制御を行うもので、外部に
は、操作パネル3、リレー10、リレー7、リレー1
8、扉2の開時にオフし閉時にオンするオープンモニタ
ースイッチ13が接続されている。制御部12は、この
オープンモニタースイッチ13のオン状態で扉2が閉じ
られていることを検出する。
An open monitor switch 15 that is turned on when the door 2 is opened with respect to the power supply 4, and a relay contact 10 a connected in parallel with the open monitor switch 15.
And a step-down transformer 11 is connected in series. The control unit 12 is composed of a power supply circuit composed of a power supply stepped down by the step-down transformer 11, a microcomputer and its peripheral circuits, and controls the entire microwave oven. Externally, the operation panel 3, the relay 10, the relay 7 , Relay 1
8. An open monitor switch 13 which is turned off when the door 2 is opened and turned on when the door 2 is closed is connected. The control unit 12 detects that the door 2 is closed with the open monitor switch 13 turned on.

【0006】こうして、扉2が閉じられていることを制
御部12が検出しているとき、操作パネル3で調理条件
を設定し、開始操作を行うと制御部12は、リレー7及
びリレー18に動作信号を与える。リレー7及びリレー
18に動作信号が与えられると、そのリレー接点7a及
び18aがオンし高周波発生装置6へ通電され加熱室に
高周波電波が供給され、食品が加熱される。
When the control unit 12 detects that the door 2 is closed, the control unit 12 sets the cooking conditions on the operation panel 3 and performs a start operation. Give an operation signal. When an operation signal is given to the relay 7 and the relay 18, the relay contacts 7a and 18a are turned on, and electricity is supplied to the high frequency generator 6 to supply a high frequency radio wave to the heating chamber to heat the food.

【0007】上記構成の電子レンジにおいて、扉2が閉
じられた状態における待機状態では、リレー接点10a
及びオープンモニタースイッチ15により降圧トランス
11には電源の供給が絶たれているため、制御部12で
電力が消費されない状態が継続される。また、使用者が
加熱物を加熱室に入れるため扉2が開かれると、オープ
ンモニタースイッチ15がオンし降圧トランス11に電
源が通電され制御部12が動作し、制御部12はリレー
10に動作信号を与える。リレー10に動作信号が与え
られると、その接点10aがオンし降圧トランス11へ
の電源の供給経路を形成する。従って、この後、使用者
が扉2を閉じても、制御部12は調理設定状態又は動作
状態と判断し一定時間の間はリレー10を動作させ続け
るようにしているため、使用者は、調理条件の設定及び
開始操作ができる。
In the microwave oven having the above configuration, in the standby state with the door 2 closed, the relay contacts 10a
Further, since the supply of power to the step-down transformer 11 is cut off by the open monitor switch 15, the state in which the control unit 12 does not consume power is continued. When the user opens the door 2 to put the heating object into the heating chamber, the open monitor switch 15 is turned on, the power is supplied to the step-down transformer 11, the control unit 12 operates, and the control unit 12 operates the relay 10. Give a signal. When an operation signal is applied to the relay 10, the contact 10 a turns on to form a power supply path to the step-down transformer 11. Therefore, after this, even if the user closes the door 2, the control unit 12 determines that the state is the cooking setting state or the operating state and continues to operate the relay 10 for a certain period of time. You can set and start conditions.

【0008】通常は、調理が終了し所定時間後に、制御
部12はリレー10の動作信号を停止する。リレー10
の動作信号が停止されると、その接点10aがオフし再
び待機状態となる。この時、負荷部である高周波発生装
置6は、リレー接点18aとリレー接点7aにより電源
より両切り状態となり、調理器を使用していない待機状
態において、万が一負荷部の高周波発生装置6が地絡し
ても、感電及び火災の危険に対し、より安全性を確保す
るようになっている。
Normally, after a predetermined time from the completion of cooking, the control unit 12 stops the operation signal of the relay 10. Relay 10
When the operation signal is stopped, the contact 10a is turned off, and the operation returns to the standby state. At this time, the high frequency generator 6 serving as the load section is cut off from the power supply by the relay contact 18a and the relay contact 7a, and in a standby state where the cooker is not used, the high frequency generator 6 of the load section should be grounded. Even so, safety is secured against danger of electric shock and fire.

【0009】[0009]

【発明が解決しようとする課題】しかし、このような従
来の電子レンジにおいては、高周波発生装置以外にもヒ
ータ及びモータ等の負荷部を駆動するリレー及び負荷部
の両切りリレーと、降圧トランスの通電用リレーを含め
これらのリレー及びその駆動回路は、その取り付け構造
及びコスト低減の面からなるべく少なくすることが必要
である。
However, in such a conventional microwave oven, in addition to the high-frequency generator, a relay for driving a load section such as a heater and a motor, a double-cut relay for the load section, and energization of a step-down transformer are provided. It is necessary to reduce the number of these relays and their drive circuits, including the relays for use, as much as possible in terms of their mounting structure and cost reduction.

【0010】[0010]

【課題を解決するための手段】本発明は上記課題を解決
するために、電源と、前記電源より電力が供給される制
御部と、前記電源より電力が供給され前記制御部により
制御される負荷部と、前記電源の少なくとも一方に位置
し前記制御部及び前記負荷部の電源ラインを入り切りす
るリレー接点と、前記電源の前記リレー接点と反対側に
位置し前記負荷部への通電を入り切りするリレー接点
と、前記制御部と前記負荷部との間に位置し扉の開閉に
連動するインターロックスイッチと、前記電源ラインを
入り切りするリレー接点と並列に接続されたオープンモ
ニタースイッチを備え、前記オープンモニタースイッチ
は、扉の開閉と連動し、扉の開時にオンし扉の閉時にオ
フし、扉の開時に前記オープンモニタースイッチを介し
て、前記制御部に前記電源より電力が供給されることに
より前記制御部が動作し、前記リレー接点をオンさせる
ようにしたものである。
According to the present invention, there is provided a power supply, a control unit supplied with power from the power supply, and a load supplied with power from the power supply and controlled by the control unit. Unit, a relay contact located at at least one of the power sources, for turning on / off a power line of the control unit and the load unit, and a relay located on a side opposite to the relay contact of the power source for turning on / off the power supply to the load unit. A contact, an interlock switch located between the control unit and the load unit, which is interlocked with opening and closing of a door, and an open monitor switch connected in parallel with a relay contact for turning on and off the power supply line. The switch is interlocked with opening and closing of the door, is turned on when the door is opened, turned off when the door is closed, and is connected to the control unit via the open monitor switch when the door is opened. Wherein said control unit operates by the power supplied from the power supply, in which so as to turn on the relay contacts.

【0011】上記発明によれば、待機時の制御部の消費
電力をなくす制御を可能とすると共に、負荷部の両切り
リレー接点を前記電源ラインを入り切りするリレー接点
で兼用することもできるため、リレーの数を一つ削減す
ることができ、更には、リレー駆動用の周辺回路及び、
これらの取り付けスペースの削減にも寄与するものであ
る。
According to the present invention, since it is possible to perform control for eliminating the power consumption of the control unit in the standby state and to use the double-sided relay contact of the load unit as the relay contact for turning on and off the power supply line, Can be reduced by one, and further, a peripheral circuit for driving the relay and
This also contributes to a reduction in the mounting space.

【0012】[0012]

【発明の実施の形態】本発明の請求項1にかかる調理器
の制御回路は、電源と、前記電源より電力が供給される
制御部と、前記電源より電力が供給され前記制御部によ
り制御される負荷部と、前記電源の少なくとも一方に位
置し前記制御部及び前記負荷部の電源ラインを入り切り
するリレー接点と、前記電源の前記リレー接点と反対側
に位置し前記負荷への通電を入り切りするリレー接点
と、前記制御部と前記負荷部との間に位置し扉の開閉に
連動するインターロックスイッチと、前記電源ラインを
入り切りするリレー接点と並列に接続されたオープンモ
ニタースイッチを備え、前記オープンモニタースイッチ
は、扉の開閉と連動し、扉の開時にオンし扉の閉時にオ
フする構成にしたものである。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A control circuit for a cooking appliance according to a first aspect of the present invention includes a power supply, a control unit supplied with power from the power supply, and a control unit supplied with power from the power supply and controlled by the control unit. And a relay contact located on at least one of the power supplies for turning on / off a power supply line of the control unit and the load unit, and a power supply for turning on / off the load located on a side opposite to the relay contact of the power supply. A relay contact, an interlock switch located between the control unit and the load unit and interlocking with the opening and closing of a door, and an open monitor switch connected in parallel with a relay contact for turning on and off the power supply line. The monitor switch is configured to be turned on when the door is opened and turned off when the door is closed, in conjunction with opening and closing of the door.

【0013】そして、前記電源ラインを入り切りするリ
レー接点と、前記電源に対し前記リレー接点と反対側に
位置し前記負荷部への通電を入り切りするリレー接点に
より、待機状態において負荷部を電源より両切り状態に
することができるため、負荷部の両切りリレーを削減す
ることができ、更には、リレー駆動用の周辺回路及び、
これらの取り付けスペースの削減もできる。また、待機
時の制御部の消費電力をなくす制御を可能とすることが
できる。
In a standby state, the load section is cut off from the power supply by a relay contact for turning the power supply line on and off, and a relay contact located on the opposite side of the power supply to the relay contact for turning on and off the load section. Because it can be in the state, it is possible to reduce the double-sided relay of the load unit, furthermore, a peripheral circuit for driving the relay,
These mounting spaces can also be reduced. Further, it is possible to perform control for eliminating power consumption of the control unit during standby.

【0014】[0014]

【実施例】(実施例1)以下、本発明の実施例1につい
て図面を用いて説明する。ただし、図面において図3と
同一部分には同一符号を付し、その詳細な説明は省略す
る。
(Embodiment 1) Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings. However, in the drawings, the same parts as those in FIG. 3 are denoted by the same reference numerals, and detailed description thereof will be omitted.

【0015】図1は本発明の実施例1の電子レンジの制
御回路図を示している。4は商用電源で、この電源4に
インターロックスイッチ5と、負荷部である高周波発生
装置6と、主回路接点のリレー接点7aと、制御部12
及び負荷部であるところの高周波発生装置16への電源
を入り切りするリレー接点10aと、過電流保護装置で
あるヒューズ8が接続されている。又、電源4に対して
扉2の開時にオンするオープンモニタースイッチ15が
リレー接点10aと並列に接続されている。
FIG. 1 is a control circuit diagram of a microwave oven according to a first embodiment of the present invention. Reference numeral 4 denotes a commercial power supply. The power supply 4 includes an interlock switch 5, a high frequency generator 6 serving as a load, a relay contact 7a serving as a main circuit contact, and a controller 12
Further, a relay contact 10a for turning on / off the power to the high frequency generator 16 which is a load unit, and a fuse 8 which is an overcurrent protection device are connected. An open monitor switch 15 that is turned on when the door 2 is opened with respect to the power supply 4 is connected in parallel with the relay contact 10a.

【0016】負荷部については、高周波発生装置6以外
にはヒータ、モータ、ランプ等と言ったものでもよく、
又、これら複数の負荷である場合もある。さらに、制御
部12は、リレー接点10a側の商用電源4と反対側の
端子に接続された降圧トランス11を介して接続されて
おり、この制御部12は、降圧トランス11で降圧した
電源で構成する電源回路とマイクロコンピュータ及びそ
の周辺回路からなり、電子レンジ全体の制御を行うもの
で、外部には、操作パネル3、リレー10、リレー7、
扉2の開時にオフし閉時にオンするオープンモニタース
イッチ13が接続されている。制御部12は、このオー
プンモニタースイッチ13のオン状態で扉2が閉じられ
ていることを検出する。
The load section may be a heater, a motor, a lamp or the like other than the high-frequency generator 6.
Further, there may be a case where these loads are a plurality of loads. Further, the control unit 12 is connected via a step-down transformer 11 connected to the terminal opposite to the commercial power supply 4 on the side of the relay contact 10a, and the control unit 12 is configured by a power supply stepped down by the step-down transformer 11. A power supply circuit, a microcomputer, and peripheral circuits for controlling the entire microwave oven. The operation panel 3, the relay 10, the relay 7,
An open monitor switch 13 that is turned off when the door 2 is opened and turned on when the door 2 is closed is connected. The control unit 12 detects that the door 2 is closed with the open monitor switch 13 turned on.

【0017】次に動作、作用について説明する。加熱室
を開閉する扉2を開くと、オープンモニタースイッチ1
5を介して降圧トランス11に商用電源4が供給され、
制御部12が起動する。そして、制御部12がリレー1
0に動作信号を与える。リレー10に動作信号が与えら
れると、そのリレー接点10aがオンし、降圧トランス
11への電源の供給経路を形成する。従って、この後、
使用者が扉2を閉じても、制御部12は調理設定状態又
は動作状態と判断し一定時間の間はリレー10を動作さ
せ続け、使用者は、その間に調理条件の設定及び開始操
作ができる。
Next, the operation and operation will be described. When the door 2 for opening and closing the heating chamber is opened, the open monitor switch 1
5, the commercial power supply 4 is supplied to the step-down transformer 11,
The control unit 12 starts. Then, the controller 12 controls the relay 1
0 is given an operation signal. When an operation signal is applied to the relay 10, the relay contact 10a is turned on, and a power supply path to the step-down transformer 11 is formed. Therefore, after this,
Even if the user closes the door 2, the control unit 12 determines that the state is the cooking setting state or the operating state and continues to operate the relay 10 for a certain period of time, so that the user can set and start the cooking conditions during that time. .

【0018】そして、扉2が閉じられていることを制御
部12が検出しているとき、操作パネル3で調理条件を
設定し、開始操作を行うと、制御部12は、リレー7に
動作信号を与える。リレー7に動作信号が与えれれる
と、リレー接点7aがオンし高周波発生装置6へ通電さ
れ加熱室へ高周波電波が供給され、食品が加熱される。
調理が終了すると制御部12はリレー7の動作信号を停
止する。更に、調理が終了した後所定時間後、制御部1
2がリレー10の動作信号を停止すると、そのリレー接
点10aがオフし待機状態となる。
When the control unit 12 detects that the door 2 is closed, a cooking condition is set on the operation panel 3 and a start operation is performed. give. When an operation signal is given to the relay 7, the relay contact 7a is turned on and the high-frequency generator 6 is energized to supply a high-frequency radio wave to the heating chamber, thereby heating the food.
When the cooking is completed, the controller 12 stops the operation signal of the relay 7. Further, after a predetermined time from the completion of the cooking, the control unit 1
2 stops the operation signal of the relay 10, the relay contact 10a is turned off, and the apparatus enters a standby state.

【0019】また、扉2が閉じられている待機状態にお
いては、前記リレー接点10aと7aにより負荷部の高
周波発生装置6が商用電源4より両切りとなるため、万
が一負荷部の高周波発生装置6が地絡しても、感電及び
火災の危険に対し、より安全性を確保することができ
る。従って、従来の構成における図3中の両切りリレー
18を、本実施例のリレー10で兼用することができ
る。また、待機時の制御部の消費電力をなくす制御を可
能とすることができる。
In the standby state in which the door 2 is closed, the high frequency generator 6 of the load section is cut off from the commercial power supply 4 by the relay contacts 10a and 7a. Even if a ground fault occurs, safety can be secured against danger of electric shock and fire. Therefore, the double-cut relay 18 in FIG. 3 in the conventional configuration can be shared with the relay 10 of the present embodiment. Further, it is possible to perform control for eliminating power consumption of the control unit during standby.

【0020】その他、この発明は、上記実施例に限定さ
れるものでなく、種々の電源で動作する機器に応用して
も良いのはいうまでもない。
In addition, it goes without saying that the present invention is not limited to the above-described embodiment, but may be applied to equipment operated by various power supplies.

【0021】[0021]

【発明の効果】以上説明したように本発明によれば、電
源と、前記電源より電力が供給される制御部と、前記電
源より電力を供給され前記制御部により制御される負荷
部と、前記電源の少なくとも一方に位置し前記制御部及
び前記負荷部の電源ラインを入り切りするリレー接点
と、前記電源の前記リレー接点と反対側に位置し前記負
荷部への通電を入り切りするリレー接点と、前記制御部
と前記負荷部との間に位置し扉の開閉に連動するインタ
ーロックスイッチと、前記電源ラインを入り切りするリ
レー接点と並列に接続されたオープンモニタースイッチ
を備え、前記オープンモニタースイッチは、扉の開閉と
連動し、扉の開時にオンし扉の閉時にオフする構成にす
ることにより、前記電源ラインを入り切りするリレー接
点と、前記電源に対し前記リレー接点と反対側に位置し
前記負荷への通電を入り切りするリレー接点により、待
機状態において負荷部を電源より両切り状態にすること
ができるため、従来から安全性を損ねることのなく負荷
の両切り回路を形成しつつ負荷部の両切りリレーを削減
することができる。
As described above, according to the present invention, a power supply, a control unit supplied with power from the power supply, a load unit supplied with power from the power supply and controlled by the control unit, A relay contact located on at least one of the power supplies to turn on and off a power supply line of the control unit and the load unit; and a relay contact located on the opposite side of the power supply to the relay contact and turning on and off the power supply to the load unit. An interlock switch located between a control unit and the load unit and interlocking with opening and closing of a door, and an open monitor switch connected in parallel with a relay contact for turning on and off the power line, wherein the open monitor switch is a door. In connection with the opening and closing of the power supply line, by turning on when the door is open and off when the door is closed, a relay contact for turning on and off the power line, With the relay contact located on the opposite side to the relay contact and turning on and off the current to the load, the load section can be switched off from the power supply in the standby state, so that the load can be switched off without impairing the safety conventionally. It is possible to reduce double-sided relays in the load section while forming a circuit.

【0022】更には、リレー駆動用の周辺回路及び、こ
れらの取り付けスペースの削減もできる。また、待機時
の制御部の消費電力をなくす制御を可能とすることがで
きる。
Furthermore, the peripheral circuits for driving the relay and the space for mounting them can be reduced. Further, it is possible to perform control for eliminating power consumption of the control unit during standby.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施例1における電子レンジの制御回
路図
FIG. 1 is a control circuit diagram of a microwave oven according to a first embodiment of the present invention.

【図2】同電子レンジの外観斜視図FIG. 2 is an external perspective view of the microwave oven.

【図3】従来の電子レンジの制御回路図FIG. 3 is a control circuit diagram of a conventional microwave oven.

【符号の説明】[Explanation of symbols]

2 扉 4 電源 5 インターロックスイッチ 6 高周波発生装置(負荷部) 7a、10a リレー接点 12 制御部 15 オープンモニタースイッチ 2 Door 4 Power supply 5 Interlock switch 6 High frequency generator (load unit) 7a, 10a Relay contact 12 Control unit 15 Open monitor switch

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】電源と、前記電源より電力が供給される制
御部と、前記電源より電力が供給され前記制御部により
制御される負荷部と、前記電源の少なくとも一方に位置
し前記制御部及び前記負荷部の電源ラインを入り切りす
るリレー接点と、前記電源の前記リレー接点と反対側に
位置し前記負荷部への通電を入り切りするリレー接点
と、前記制御部と前記負荷部との間に位置し扉の開閉に
連動するインターロックスイッチと、前記電源ラインを
入り切りするリレー接点と並列に接続されたオープンモ
ニタースイッチを備え、前記オープンモニタースイッチ
は、扉の開閉と連動し、扉の開時にオンし扉の閉時にオ
フし、扉の開時に前記オープンモニタースイッチを介し
て、前記制御部に前記電源より電力が供給されることに
より前記制御部が動作し、前記電源ラインを入り切りす
るリレー接点をオンさせると共に、前記制御部により調
理終了後に前記電源ラインを入り切りするリレー接点を
オフさせる構成とした調理器の制御回路。
1. A power supply, a control unit to which power is supplied from the power supply, a load unit to which power is supplied from the power supply and controlled by the control unit, and a control unit which is located in at least one of the power supply and A relay contact for turning on / off a power supply line of the load unit, a relay contact located on a side opposite to the relay contact of the power supply for turning on / off the energization of the load unit, and a position between the control unit and the load unit. An interlock switch interlocking with the opening and closing of the door, and an open monitor switch connected in parallel with a relay contact for turning the power line on and off, the open monitor switch interlocks with the opening and closing of the door, and turns on when the door is opened. The control unit is turned off when the door is closed, and the control unit is operated by supplying power from the power supply to the control unit via the open monitor switch when the door is opened. And, wherein with turn on the relay contacts for switching on and off the power supply lines, the control circuit of the cooker has a structure for turning off the relay contact for switching on and off the power supply line after the completion of cooking by the control unit.
JP18727999A 1998-04-01 1999-07-01 Cooker control circuit Expired - Fee Related JP3169011B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18727999A JP3169011B2 (en) 1998-04-01 1999-07-01 Cooker control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18727999A JP3169011B2 (en) 1998-04-01 1999-07-01 Cooker control circuit

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP08848698A Division JP3168976B2 (en) 1998-04-01 1998-04-01 Cooker control circuit

Publications (2)

Publication Number Publication Date
JP2000111060A true JP2000111060A (en) 2000-04-18
JP3169011B2 JP3169011B2 (en) 2001-05-21

Family

ID=16203225

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18727999A Expired - Fee Related JP3169011B2 (en) 1998-04-01 1999-07-01 Cooker control circuit

Country Status (1)

Country Link
JP (1) JP3169011B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6680463B2 (en) 2001-06-01 2004-01-20 Sharp Kabushiki Kaisha Power supply control circuit and cooking device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6680463B2 (en) 2001-06-01 2004-01-20 Sharp Kabushiki Kaisha Power supply control circuit and cooking device

Also Published As

Publication number Publication date
JP3169011B2 (en) 2001-05-21

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