JPS62196530A - Microwave range - Google Patents

Microwave range

Info

Publication number
JPS62196530A
JPS62196530A JP3760486A JP3760486A JPS62196530A JP S62196530 A JPS62196530 A JP S62196530A JP 3760486 A JP3760486 A JP 3760486A JP 3760486 A JP3760486 A JP 3760486A JP S62196530 A JPS62196530 A JP S62196530A
Authority
JP
Japan
Prior art keywords
damper
motor
switch
convection
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
JP3760486A
Other languages
Japanese (ja)
Other versions
JPH0445733B2 (en
Inventor
Yoshihiro Aramaki
義博 荒蒔
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP3760486A priority Critical patent/JPS62196530A/en
Publication of JPS62196530A publication Critical patent/JPS62196530A/en
Publication of JPH0445733B2 publication Critical patent/JPH0445733B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To make a simplified control circuit, reduce the number of relays used and enable a price of the unit to be less expensive by a method wherein a convection motor and a damper motor are controlled by a common relay. CONSTITUTION:When a signal of convection cooking operation is outputted through a control unit CU, a convection motor CM, a heater element HE and a fan motor FM are operated. At this time, a damper is in its opened condition, the damper motor DM is supplied with a voltage through a first fixed contact point A and a movable contact point C of a switch S4 to drive the damper motor so as to operate the damper to its closed condition. When the damper is closed, the switch S4 is changed over by a cam 1 and the motor DM is stopped. Upon completion of the cooking operation, a common contact point (c) of the relay RY7 is connected to a normal-closed contact point (b). Since an electrical current is supplied to the damper motor DM through the second fixed contact point and a movable contact point C of a switch S4, the damper motor DM is operated to drive the damper to its opened condition. The damper motor DM is stopped through operation of the cam 1 and the switch S4.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 この発明は電子レンジに係り、とくに、コンベクション
機能を有する電子レンジに関する。
DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a microwave oven, and particularly to a microwave oven having a convection function.

(ロ)従来の技術 第3図は従来のこの種の電子レンジの電気回路図であり
、(PG)は商用電源接続用プラグ、(FU)はヒユー
ズ、(TF>は温度ヒユーズ、(131)(IS2)は
それぞれインタロックスイッチ、〈Sl)はモニタース
イッチ、(FM)はファンモータ、(TM>はターンテ
ーブル用モータ、(OL)はオーブンランプ、(HE)
はヒータエレメント、(PT)はパワートランス、(C
)はコンデンサーユニット、(RF)は整流素子、(M
T)はマグネトロン、(RU)はリレーユニット、<R
YI)〜(RY6)はリレー、(CU)はコントロール
ユニット、<TR)はサーミスタ、(S2)は調理停止
スイッチ、(S3)はダンパースイッチ、(、DM)は
ダンパーモータ、(CM)はコンベクションモータであ
る。
(b) Conventional technology Figure 3 is an electrical circuit diagram of a conventional microwave oven of this type, where (PG) is a plug for connecting to a commercial power supply, (FU) is a fuse, (TF> is a temperature fuse, (131) (IS2) is an interlock switch, <Sl) is a monitor switch, (FM) is a fan motor, (TM> is a turntable motor, (OL) is an oven lamp, (HE)
is the heater element, (PT) is the power transformer, (C
) is a capacitor unit, (RF) is a rectifier, (M
T) is magnetron, (RU) is relay unit, <R
YI) to (RY6) are relays, (CU) is a control unit, <TR) is a thermistor, (S2) is a cooking stop switch, (S3) is a damper switch, (, DM) is a damper motor, (CM) is a convection It's a motor.

コンベクション調理を行う時コントロールユニットから
信号が出力されると、リレー(RY2)〜(RY6)に
電圧が印加されリレー(RY2>はターンテーブルモー
タ(TM)とオーブンランプ(OL)を、リレー(RY
3)はコンベクションモータ(CM)を、リレー(RY
4)はヒーターエレメント(1−IE)を動作させる。
When convection cooking is performed, when a signal is output from the control unit, voltage is applied to relays (RY2) to (RY6), and relay (RY2> controls the turntable motor (TM) and oven lamp (OL)).
3) connects the convection motor (CM) to the relay (RY).
4) operates the heater element (1-IE).

さらにリレー (RY4)は温度制御のためサーミスタ
(TR)によっても制御される。リレー(RY5)は電
子レンジの外殻及び電気部品を冷却させるためのファン
モータ(FM)を、リレー(RY6)はダンパーを動作
させるダンパーモータ(DM)を駆動する。
Furthermore, the relay (RY4) is also controlled by a thermistor (TR) for temperature control. The relay (RY5) drives a fan motor (FM) for cooling the outer shell and electrical parts of the microwave oven, and the relay (RY6) drives a damper motor (DM) that operates a damper.

又ダンパーを所定位置で止める為、ダンパーの移動によ
って開閉されるダンパースイッチ(s3)によりリレー
(RY6)を制御している。
In order to stop the damper at a predetermined position, a relay (RY6) is controlled by a damper switch (s3) that is opened and closed by the movement of the damper.

(ハ)発明が解決しようとする問題点 しかしながら、従来の電子レンジは、電気部品の各々に
制御リレーが必要で制御回路が複雑になると共に部品点
数が多く、経済的にも好ましいものではなかった。
(c) Problems to be solved by the invention However, conventional microwave ovens require a control relay for each electrical component, making the control circuit complex and having a large number of parts, which is not economically desirable. .

この発明はこのような事情を考慮してなされたもので、
制御リレーの使用数を少くして経済性に富む電子レンジ
を提供するものである。
This invention was made in consideration of these circumstances,
To provide a microwave oven which is highly economical by reducing the number of control relays used.

(ニ)問題点を解決するための手段 この発明は、コンベクション機能を有し、オーブン庫内
に熱風を循環させるファンを駆動するコンベクションモ
ータとオーブン庫内にはいり込む冷気を遮断するダンパ
ーを開閉させるダンパーモータを備えた電子レンジにお
いて、常開・常閉・共通接点を有しモータ駆動電源をそ
の常開・共通接点を介してコンベクションモータに接続
するリレーと、第1・第2固定接点および可動接点を有
しダンパーモータを第1固定・可動接点を介してコンベ
クションモーターに並列接続し、かつ、第2固定接点が
前記リレーの常閉接点に接続されたスイッチと、ダンパ
ーモータによって駆動され前記スイッチの可動接点をダ
ンパーの開時には第1固定接点に閉時には第2固定接点
に投入させるカムとを備えたことを特徴とする電子レン
ジである。
(d) Means for solving the problem This invention has a convection function and opens and closes a convection motor that drives a fan that circulates hot air inside the oven and a damper that blocks cold air from entering the oven. In a microwave oven equipped with a damper motor, there is a relay that has normally open/normally closed/common contacts and connects the motor drive power source to the convection motor via the normally open/common contacts, and a relay that has first and second fixed contacts and a movable contact. a switch having a contact, a damper motor connected in parallel to a convection motor via a first fixed/movable contact, and a second fixed contact connected to a normally closed contact of the relay; and a switch driven by the damper motor. The microwave oven is characterized in that it is equipped with a cam that causes the movable contact to be inserted into the first fixed contact when the damper is opened and the second fixed contact when the damper is closed.

(ホ)作 用 コンベクション調理時にリレーがオンすると、コンベク
ションモータが駆動される。同時にコンベクションモー
タにスイッチを介して並列接続されたダンパーモータが
駆動し、ダンパーを開状態にする。ダンパーが閉状態に
なるとカムによってスイッチが切換えられ、ダンパーモ
ータが停止する。
(E) Function When the relay is turned on during convection cooking, the convection motor is driven. At the same time, a damper motor connected in parallel to the convection motor via a switch is driven to open the damper. When the damper is closed, a cam switches the switch and the damper motor stops.

調理終了時に、リレーがオフすると、コンベクションモ
ータが停止する。同時に、モータ駆動電源はリレーとス
イッチを介してダンパーモータに接続されるので、ダン
パーモータが駆動しダンパーを開状態にする。ダンパー
が開状態になるとカムによってスイッチが切換えられ、
ダンパーモータが停止する。
When the relay is turned off at the end of cooking, the convection motor stops. At the same time, the motor drive power source is connected to the damper motor via the relay and switch, so the damper motor is driven and the damper is opened. When the damper is in the open state, the cam switches the switch,
Damper motor stops.

このように、従来2つのリレーと1つのスイッチで行わ
れたコンベクションモータとダンパモータの制御が1つ
のリレーと1つのスイッチで行われる。
In this way, the control of the convection motor and damper motor, which was conventionally performed using two relays and one switch, is now performed using one relay and one switch.

(へ)実施例 以下、図面に示す実施例に基づいてこの発明を詳述する
。なお、これによってこの発明が限定されるものではな
い。
(f) Examples Hereinafter, the present invention will be described in detail based on examples shown in the drawings. Note that this invention is not limited to this.

第1図はこの発明の一実施例を示す電気回路図である。FIG. 1 is an electrical circuit diagram showing one embodiment of the present invention.

第7図において、(RY7)は常開・常閉・共通接点(
a+ (b+ (C)を有しモータ駆動電源をその常開
・共通接点(a) (C)を介してコンベクションモー
タ(CM)に接続するリレー、(S4)は第1・第2固
定接点(A)(B)および可動接点(C)を有しダンパ
ーモータ([)’M)を第1固定・可動接点(A)(C
)を介してコンベクションモータ(CM>に並列接続し
、がっ、第2固定接点(B)がリレー(RY7)の常閉
接点(b)に接続されたスイッチであり、その他の回路
は第3図と同等である。
In Figure 7, (RY7) is a normally open/normally closed/common contact (
a+ (b+) A relay that connects the motor drive power supply to the convection motor (CM) through its normally open and common contacts (a) and (C), (S4) is the first and second fixed contacts ( A) (B) and a movable contact (C), the damper motor ([)'M) is connected to the first fixed/movable contact (A) (C).
) is connected in parallel to the convection motor (CM>), and the second fixed contact (B) is a switch connected to the normally closed contact (b) of the relay (RY7), and the other circuits are connected to the third It is equivalent to the figure.

また、第2図(インはカム(1)がダンパーモータ(D
M)によって矢印方向に駆動されダンパーの開時にスイ
ッチ(S4)の可動接点(0)を第1固定接点(A)に
投入させた状態を示し、同図(ロ)はカム(1)がダン
パーの閉時に可動接点(C)を第2固定接点(B)に投
入させた状態を示している。
Also, in Fig. 2 (in), the cam (1) is the damper motor (D
M) is driven in the direction of the arrow, and when the damper is opened, the movable contact (0) of the switch (S4) is closed to the first fixed contact (A). It shows a state in which the movable contact (C) is connected to the second fixed contact (B) when the switch is closed.

このような構成において、コントロールユニッ1−(C
tJ)よりコンベクション調理の信号が出力されるとリ
レー(RY2>(RY4)(RY5)(RY7)に電圧
が印加され、ターンテーブルモータ(TM)、オーブン
ランプ(OL)、コンベクションモータ(CM)、ヒー
ターエレメント、(HE)及びファンモータ(FM)が
作動する。
In such a configuration, the control unit 1-(C
When the convection cooking signal is output from tJ), voltage is applied to the relays (RY2>(RY4)(RY5)(RY7)), and the turntable motor (TM), oven lamp (OL), convection motor (CM), The heater element (HE) and fan motor (FM) operate.

この時ダンパーは、第2図(イ)に示す開状態にあるの
で、ダンパーモータ(DM)は、スイッチ(S4)の第
1固定接点(A)と可動接点(C)を介して電圧が印加
されて駆動し、ダンパーを閉状態になるよう作動させる
。ダンパーが閉状態になると、第2図(ロ)に示すよう
にカム(1)によってスイッチ(S4)が切換えられる
ので、モータ(DM)は停止する。調理が終わるとリレ
ー(RY7)の共通接点(C)は常閉接点(b)に接続
されるが、それによってダンパーモーター(DM>へス
イッチ(S4)の第2固定接点(B)と可動接点(C)
を通り電流が供給されるので、ダンパーモータ(DM)
が作動し、ダンパーを開状態へ駆動させる。それによっ
て再びカム(1)とスイッチ(S4)は第2図(イ)の
状態に戻ると、ダンパーモータ(DM)が停止する。
At this time, the damper is in the open state shown in FIG. 2 (A), so voltage is applied to the damper motor (DM) via the first fixed contact (A) and movable contact (C) of the switch (S4). The damper is operated to close the damper. When the damper is in the closed state, the switch (S4) is switched by the cam (1) as shown in FIG. 2 (b), so the motor (DM) is stopped. When cooking is finished, the common contact (C) of the relay (RY7) is connected to the normally closed contact (b), which connects the second fixed contact (B) and the movable contact of the damper motor (DM>to switch (S4)). (C)
Since current is supplied through the damper motor (DM)
is activated, driving the damper to the open state. As a result, the cam (1) and the switch (S4) return to the state shown in FIG. 2 (A), and the damper motor (DM) stops.

このようにして第3図に示す従来例と同じ動作が行なわ
れる。
In this way, the same operation as in the conventional example shown in FIG. 3 is performed.

(ト)発明の効果 この発明によれば、コンベクションモータとダンパーモ
ータとを共通のリレーで制御することができるので、制
御回路が簡略化されるとともにリレーの使用個数が低減
され低価格化が可能となる。
(g) Effects of the invention According to this invention, the convection motor and damper motor can be controlled by a common relay, which simplifies the control circuit and reduces the number of relays used, resulting in lower costs. becomes.

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

第1図はこの発明の一実施例を示す電気回路図、第2図
C□C口)はこの発明の要部の構成と動作を示す説明図
、第3図は従来の電子レンジの第1図対応図である。 (1)・・・・・・カム、(DM)・・・・・・ダンパ
ーモータ、(CM)・・・・・・コンベクションモータ
、(RY7)・・・・・・リレー、
Fig. 1 is an electric circuit diagram showing one embodiment of the present invention, Fig. 2 (C□C) is an explanatory diagram showing the configuration and operation of the main parts of the invention, and Fig. 3 is an electric circuit diagram of a conventional microwave oven. FIG. (1) Cam, (DM) Damper motor, (CM) Convection motor, (RY7) Relay,

Claims (1)

【特許請求の範囲】[Claims] 1、コンベクション機能を有し、オーブン庫内に熱風を
循環させるファンを駆動するコンベクションモータとオ
ーブン庫内にはいり込む冷気を遮断するダンパーを開閉
させるダンパーモータを備えた電子レンジにおいて、常
開・常閉・共通接点を有しモータ駆動電源をその常開・
共通接点を介してコンベクションモータに接続するリレ
ーと、第1・第2固定接点および可動接点を有しダンパ
ーモータを第1固定・可動接点を介してコンベクション
モーターに並列接続し、かつ、第2固定接点が前記リレ
ーの常閉接点に接続されたスイッチと、ダンパーモータ
によって駆動され前記スイッチの可動接点をダンパーの
開時には第1固定接点に閉時には第2固定接点に投入さ
せるカムとを備えたことを特徴とする電子レンジ。
1. A microwave oven that has a convection function and is equipped with a convection motor that drives a fan that circulates hot air inside the oven and a damper motor that opens and closes a damper that blocks cold air from entering the oven. It has a closed/common contact and connects the motor drive power supply to its normally open/
A relay that connects to the convection motor through a common contact, a first fixed contact, a second fixed contact, and a movable contact, connects the damper motor in parallel to the convection motor via the first fixed and movable contact, and a second fixed contact. A switch having a contact connected to a normally closed contact of the relay, and a cam driven by a damper motor to cause the movable contact of the switch to close to a first fixed contact when the damper is opened and to a second fixed contact when the damper is closed. A microwave oven featuring
JP3760486A 1986-02-22 1986-02-22 Microwave range Granted JPS62196530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3760486A JPS62196530A (en) 1986-02-22 1986-02-22 Microwave range

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3760486A JPS62196530A (en) 1986-02-22 1986-02-22 Microwave range

Publications (2)

Publication Number Publication Date
JPS62196530A true JPS62196530A (en) 1987-08-29
JPH0445733B2 JPH0445733B2 (en) 1992-07-27

Family

ID=12502176

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3760486A Granted JPS62196530A (en) 1986-02-22 1986-02-22 Microwave range

Country Status (1)

Country Link
JP (1) JPS62196530A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57132117U (en) * 1981-02-12 1982-08-17
JPS5813402A (en) * 1981-07-11 1983-01-25 Sumitomo Electric Ind Ltd Production of flat wire

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57132117U (en) * 1981-02-12 1982-08-17
JPS5813402A (en) * 1981-07-11 1983-01-25 Sumitomo Electric Ind Ltd Production of flat wire

Also Published As

Publication number Publication date
JPH0445733B2 (en) 1992-07-27

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