JP2004077108A

JP2004077108A - Microwave oven

Info

Publication number: JP2004077108A
Application number: JP2002357286A
Authority: JP
Inventors: Taisei Kan; 韓　大成; Yong-Woon Han; 韓　龍雲; Han-Sung Kang; 姜　翰成; Shuyu Yo; 余　周勇; Seong-Deog Jang; 張　成徳
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2002-08-15
Filing date: 2002-12-09
Publication date: 2004-03-11
Also published as: KR100485575B1; EP1389893A3; CN1240967C; KR20040016351A; EP1389893A2; CN1475700A; EP1389893B1; DE60228948D1

Abstract

<P>PROBLEM TO BE SOLVED: To provide a microwave oven in which the cooking state of foods to be cooked can be easily and quickly confirmed at a large number of positions outside the microwave oven, and easily manufacturing a transparent door therefor. <P>SOLUTION: The door is composed of a first door piece composed of a frame for contacting with an edge surface of a cooking chamber, an upper face plate and a lower face plate projecting to the front of the frame and a second door piece composed of a front face plate having an upper side edge part and a lower side edge part projecting forward so as to be respectively joined to the edge parts of the upper face plate and the lower face plate of the first door piece. The first door piece is manufactured by bending the upper face plate and the lower face plate forward at an angle of 90° to the frame after integrally forming the frame, the upper face plate and the lower face plate of a transparent member by press working. The upper side edge part and the lower side edge part of the second door piece are respectively joined by welding to the upper face plate and the lower face plate of the first door piece. Outward extending flange parts are arranged on both side ends of the second door piece, and the respective flange parts are joined inside the frame of the first door piece by welding. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は電子レンジに関し、より詳しくは調理室が多数位置で透視できるように前方に突出したドアを容易に製作し得るようにした電子レンジに関するものである。
【０００２】
【従来の技術】
一般に、電子レンジは電装室に設置されたマグネトロンから発生される高周波を用いて、調理室内に置かれた調理物を調理するか暖める器具であって、高周波を調理室の内部に放射して、調理物に含有された水分の分子配列を反復的に変換させることで、飲食物の水分分子間の摩擦熱を起こして調理物を調理するようになっている。
図１はドア８が開放された状態の従来の電子レンジの斜視図である。同図に示すように、従来の電子レンジは、ハウジング１と、前記ハウジング１の内部に区画されて設けられた電装室２及び調理室３とを有する。電装室２には、高周波を発生させるためのマグネトロン４と、前記マグネトロン４を冷却させるとともに、調理室を通じて空気を循環させることで、調理物から発生する水分及び匂いを外部へ排出させるための送風ファン５とが設けられる。
【０００３】
調理室３は前面の開放された箱状に形成され、底面３ａが長方形をなし、底面３ａの先端部は調理室３の前面と同一平面をなす。前記底面３ａ上には、調理物が載せられ、マグネトロン４から放射される高周波により調理物が調理されるようにするターンテーブル６と、前記ターンテーブル６を回転可能に支持するための回転ガイド（図示せず）が設けられている。前記ターンテーブル６は調理室３の下部に配置されたモータ（図示せず）に結合され、低速で回転する。
【０００４】
また、開放された調理室３の前面には、ハウジング１の一側に回動可能に結合され、調理室３を開閉するドア８が設けられている。前記ドア８は長方形に形成され、中央部には調理室３の内部が透視できるように多数の透視孔が形成された透視部材９が結合されている。この透視部材９を含むドア８はその前面及び背面共に平面となり、ドア８が閉鎖された状態でドア８の背面が調理室３の前面に接触し、ドア８の前面は平面をなして調理室３を閉鎖する。
【０００５】
したがって、電子レンジが作動すると、マグネトロン４から発生する高周波が調理室３に放射されているうちにターンテーブル６が低速で回転するので、ターンテーブル６上に載せられた調理物が高周波により調理される。
しかし、このように構成された従来の電子レンジは六面体の形状をなし、その中央部に調理室の内部が透視できるように形成された透視部材９がドア８とともに平面をなす構造を有するため、調理の途中で、調理室３に収納された調理物の調理状態を確認するためには、使用者がドア８の前方から透視部材９の高さに合わせて調理室３の内部を覗き見なければならない欠点がある。
【０００６】
特に、従来のドア８においては、透視部材９が平面になっているとともに、透視孔の形成された部分がドア８の全面積に比べて小さく形成されるため、調理室の内部を覗き見るためには、透視部材９に近接して位置しなければならない。よって、使用者が調理室３内で調理される調理物の調理状態を確認するためには、少しの時間がかかり、しかも電子レンジの周囲でほかの仕事をしながら調理物の調理状態を確認することができない欠点がある。
【０００７】
【発明が解決しようとする課題】
したがって、本発明は前述した従来技術の問題点を解決するためのもので、その目的は、調理室で調理される調理物の調理状態を電子レンジの外部の多数位置で容易で迅速に確認できるようにした電子レンジを提供することにある。
本発明のほかの目的は、調理室が多数位置で透視できるようにしたドアを容易に製作し得るように構成された電子レンジを提供することにある。
【０００８】
【課題を解決するための手段】
前記目的を達成するため、本発明は、調理物を調理するための加熱部と、開口部を有する調理室と、前記調理室を選択的に開閉するドアとを含み、前記ドアは、前記ドアの外側縁部を形成し前記開口部の縁部と接触するフレームを有する第１ドア片と、前記フレームの両側から前方に突出する前面板を有する第２ドア片とを含み、前記ドアは前記第１ドア片を前記第２ドア片に結合することで形成される電子レンジを提供する。
【０００９】
前記第１ドア片は上面板及び下面板をさらに含み、前記上面板及び下面板は、前記前面板とともに、前記調理室から延長される調理空間を形成するため、前記前面板の上下端に付着されることが好ましい。
前記前面板と上面板及び下面板は金属板から製作され、前記前面板と上面板は多数の透視孔を含むことが好ましい。
前記加熱部は調理物を調理するため高周波を発生するマグネトロンを含み、前記フレームは、前記開口部が前記ドアにより閉鎖されたとき、ドアを通じて前記調理室から高周波が漏洩することを防止する多数のチョーク溝を含むことが好ましい。
【００１０】
前記前面板は半円筒形に形成され、前記上面板と下面板は前記前面板の内部に形成される内部空間の上部と下部を覆うように半円形に形成されることが好ましい。
前記前面板は上面と下面が開放された箱状を有し、前記上面板と下面板は前記前面板の内部に形成される内部空間の上部と下部を覆う長方形に形成されることが好ましい。
前記上面板と下面板は、溶接、コーキング及びリベット結合工程のいずれかにより前記前面板の上端部及び下端部にそれぞれ付着されることが好ましい。
【００１１】
前記前面板は前記前面板の両側端から外向に延長されるフランジ部を含み、前記フランジ部は前記フレームの両側の対応内側端に付着されることが好ましい。前記フランジ部は、溶接、コーキング及びリベット結合のいずれかにより前記フレームに付着されることが好ましい。
前記フレームは、前記前面板のフランジ部を収容するため、前記フレームの両側の内側端に設けられた段差部を含むことが好ましい。
【００１２】
前記第１ドア片は、プレス加工により、前記フレームと前記上面板及び下面板が一体的に形成された単一体を製造し、前記上面板と下面板を前方に直角に折り曲げることにより製造されることが好ましい。
前記加熱部は、調理物を調理するため高周波を発生するマグネトロンを含むことが好ましい。
前記フレームと前記上面板及び下面板は単一構造に一体的に形成されることが好ましい。
【００１３】
前記前面板と上面板は多数の透視孔を含むことが好ましい。
前記前面板と上面板は前記調理室を多数の位置で透視できるように構成されることが好ましい。
前記下面板は多数の透視孔を含み、前記前面板と前記上面板及び下面板は前記調理室を多数の位置で透視できるように構成されることが好ましい。
前記電子レンジは、前記前面板の透視孔を覆う透明板からなることが好ましい。
【００１４】
また、本発明は、調理物を調理するための加熱部と、調理物を収容するための開口部を有する調理室と、前記開口部を選択的に開閉するドアとを含み、前記ドアは、前記開口部と接触して閉鎖させるため前記ドアの外側縁部を形成するフレームと、前記フレームから前方に突出し、前記調理室と前記閉鎖されたドアにより形成される空間を透視可能にする前方透視部材とを含む調理装置を提供する。
前記フレームは、前記前方透視部材とともに、前記調理室から延長される調理空間を形成するため、前記前方透視部材の上端と下端に付着される上面板と下面板を含むことが好ましい。
前記上面板と前記前方透視部材は、透視孔を含み、前記空間を多数の位置で透視できるようにすることが好ましい。
前記加熱部は調理物を調理するため高周波を発生するマグネトロンを含むことが好ましい。
【００１５】
【発明の実施の形態】
以下、添付図面に基づいて本発明の好ましい実施例を詳細に説明する。
図２は本発明の一実施例によるドアが調理室を開放した状態を示す斜視図であり、図３は前記ドアが調理室を閉鎖した状態を示す斜視図である。
同図に示すように、本発明による電子レンジは、高周波を発生させるためのいろいろな電気部品が設けられる電装室１０と、調理物を調理するための空間を有し、前面が開放されている調理室２０と、調理室２０の開放前面を開閉するためのドア３０とを備える。
【００１６】
前記電装室１０には、調理室２０に高周波を放射するマグネトロン１１と、前記マグネトロン１１を冷却させるとともに、調理室２０内の調理物から発生する水分及び匂いを電子レンジの外部へ排出させるための送風ファン１２とが設けられる。
調理室２０は上壁２１、底面板２２、左右側壁２３、２４、及び後壁（図示せず）からなり、その前面に開口部２５が設けられるので、前面が開放される。調理室２０の前面には、前記開口部２５を開閉するため、本発明によるドア３０が回動可能に結合される。前記調理室２０の開口部２５の縁部には、ドア３０が閉じたとき、ドア３０の縁部と接触して前記開口部２５を密閉するため、平面の四角帯面２６が設けられる。
【００１７】
調理室２０の底面板２２上には、調理物が載せられ調理されるようにするターンテーブル２７と、前記ターンテーブル２７を回転可能に支持する回転支持部（図示せず）とが設けられている。このターンテーブル２７は底面板２２の下部に設置されるモータ（図示せず）により低速で回転することで、その上に載せられた調理物に高周波が均等に伝達されるようにして、調理物を調理することになる。
本発明の一実施例によるドア３０は、調理室２０の開口部２５を形成する四角帯面２６に密着して高周波の漏洩を防止するため、長方形の縁部をなすフレーム３１と、調理室２０の内部を透視して調理状態を確認し得るように、前記フレーム３１の開口部に配置される透視部材３２とを含む。
【００１８】
フレーム３１には、その縁部の内側面に沿って多数のチョーク溝３１ａが一定の間隔で形成されているので、フレーム３１が調理室２０の前面の四角帯面２６と接触すると、前記チョーク溝３１ａにより調理室２０からの高周波の漏洩が防止される。
透視部材３２は、前記フレーム３１の両側から前方に、つまり調理室２０の前面の外側に曲面をなしながら突出した前面板３３と、前記前面板３３の上部を覆う略半円形の上面板３４と、前記前面板３３の下部を覆う略半円形の下面板３５とからなるもので、全体として前方に略半円筒形に突出した形状を有する。
【００１９】
一方、半円筒形をなすように前方に突出した構造を有するドア３０の透視部材３２が調理室２０とともに調理空間３７を形成するため、調理室２０の底面板２２の先端部２２ａも略半円形に形成され調理室の前方に突出した構造を有する。したがって、ドア３０が調理室２０を閉鎖した状態で、底面板２２の先端部２２ａは透視部材３２の下面板３５上に配置され、半円筒形の透視部材３２の内部が調理空間３７を構成することになる。
【００２０】
透視部材３２の前面板３３と上面板３４には、調理室２０が透視できるように一定大きさの透視孔が稠密に配列されているので、前記透視部材３２の前面板３３と上面板３４を通して調理室２０の内部を覗き見ることができるようにする。すなわち、本発明による電子レンジは、調理室２０の前方だけでなく上方及び両方から調理室２０を透視することができるので、使用者は電子レンジの付近でほかの仕事をしながらも調理室２０に収納された調理物の調理状態を確認することができる。
【００２１】
一方、透視孔が形成されている透視部材３２の外面には、透明材質で作られた透明窓（図示せず）を付着することで、透視孔を通して調理室の内部が調理室の外部と連通しないようにするとともに、透視部材３２を通して調理室２０の内部を覗き見ることができるようにする。
ところが、一般に、電子レンジは調理空間内に使用者の眼高に又はそれより低い位置に配置されるため、本実施例では、透視部材３２の下面板３５には透視のための透視孔が形成されていないものにしたが、調理室２０の内部が覗き見られるように、電子レンジの設置高によって下面板３５にも透視孔が形成されたものにすることができる。
【００２２】
図２及び図３に示すように、電子レンジのドア３０の透視部材３２が前方に突出した半円筒形を有するので、調理時に調理物から発生する水分が透視部材３２の内面に凝結する現象を効果的に防止することができる。
図４及び図５は本発明の一実施例によるドアの組立構造を示すもので、図４はドアの分解斜視図であり、図５は結合されたドアの斜視図である。
同図に示すように、前方に突出した本発明の一実施例によるドア３０は二つの金属板が結合された簡単な構造を有する。すなわち、ドア３０は、調理室２０を密閉するためのフレーム３１とこのフレーム３１の上部及び下部にそれぞれ透視部材３２の上面板３４と下面板３５とが一体的に形成された第１ドア片４０と、透視部材３２の前面板３３からなる第２ドア片５０とから構成される。
【００２３】
第１ドア片４０は、フレーム３１と透視部材３２の上面板３４及び下面板３５とがプレス加工により一体に形成された後、前記上面板３４と下面板３５がフレームに対して前方に９０°の角度で折り曲げられることにより作られる。つぎに、こうして得た第１ドア片４０に、前方に突出する曲面をなすように、透視部材３２の前面板３３をプレス加工で成形した第２ドア片５０が結合される。
第１ドア片４０と第２ドア片５０を結合させる作業について説明する。第２ドア片５０を第１ドア片４０に結合させるため、第２ドア片５０の両端には、前面板３３の縁部からおよそ９０°の角度で外向に延長されるフランジ部５１が設けられる。また、第２ドア片５０のフランジ部５１に結合して一平面を形成するように、第１ドア片４０のフレーム３１の内側面の両側には、前記フランジ部５１が結合される段差部４１が設けられる。好ましくは、前記段差部４１の幅は前記フランジ部５１の幅より少し大きくする。したがって、フランジ部５１が段差部４１に結合された状態で、フランジ部５１がフレーム３１に溶接されることにより、第２ドア片５０の両側端部が第１ドア片４０の両側端部に固定される。
【００２４】
フランジ部５１がフレーム３１の両側面に結合された状態で、フレーム３１とフランジ部５１は平面をなす。したがって、フレーム３１と調理室２０の四角帯面２６（図２参照）との間には隙間が形成されない。
図５に示すように、フランジ部５１が段差部４１に結合されてから溶接された状態で、第１ドア片４０に設けられた透視部材３２の上面板３４と下面板３５はそれぞれ第２ドア片５０をなす透視部材３２の前面板３３の上部と下部を覆い、上面板３４と下面板３５の縁部がそれぞれ前面板３３の上端と下端に対応して配置される。
【００２５】
その後、前面板３３の上端と上面板３４の縁部との間と、前面板３３の下端と下面板３５の縁部との間をその内側で溶接すると、第２ドア片５０は第１ドア片４０に堅く固定され、これでドア３０の組立が仕上がる。ここで、符号６１と６２はそれぞれ前面板３３の上端と上面板３４の縁部との間と、前面板３３の下端と下面板３５の縁部との間に形成される溶接線を示す。
【００２６】
第１ドア片４０と第２ドア片５０はプロジェクション溶接により結合されるものと例示したが、その結合方式はこれに限定されるものではなく、例えば第１ドア片と第２ドア片はほかの溶接方式、コーキング、又はリベット結合方式で結合することもできる。また、本実施例においては、第１ドア片と第２ドア片がプレス加工により製作されるものと例示したが、これに限定されなく、ほかの方式によっても製作できる。
【００２７】
図６及び図７は本発明のほかの実施例によるドアの分解斜視図及び結合斜視図である。同図に示すように、本発明のほかの実施例は、ドア３０の透視部材３２が四角箱状に形成され前方に突出したものを示すもので、透視部材３２が図２ないし図４に示す半円筒形のほかにもいろいろの形状に形成できることを例示するものである。
図６のドア３０は、その形状を除き、図２ないし図４のドア３０と同一の結合構造を有するので、図６及び図７に示すドア３０のそれ以上の説明は省略する。
【００２８】
【発明の効果】
以上説明したように、本発明による電子レンジは、ドアが前方に突出する構造であるので、多数位置及び角度で調理室の内部を透視することができる。よって、調理室内で調理される調理物の調理状態を多数位置で迅速に確認することができる利点があるものである。
また、本発明による電子レンジは、前方に突出するドアがプレス加工により二つのドア片に製作された後、溶接により相互結合される構造であるので、製作が簡便で迅速に行える利点があるものである。
【図面の簡単な説明】
【図１】ドアが調理室を開放した状態を示す従来の電子レンジの斜視図である。
【図２】本発明の一実施例を示すドアが調理室を開放した状態を示す電子レンジの斜視図である。
【図３】図２に示すドアが調理室を閉鎖した状態を示す電子レンジの斜視図である。
【図４】図２及び図３に示す電子レンジのドアの分解斜視図である。
【図５】図５に示すドアの結合斜視図である。
【図６】本発明のほかの実施例によるドアの分解斜視図である。
【図７】図６に示すドアの結合斜視図である。
【符号の説明】
２０　調理室
２２　底面板
３０　ドア
３１　フレーム
３２　透視部材
３３　前面板
３４　上面板
３５　下面板
４０　第１ドア片
４１　段差部
５０　第２ドア片
５１　フランジ部[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microwave oven, and more particularly, to a microwave oven capable of easily manufacturing a door protruding forward so that a cooking room can be seen through a plurality of positions.
[0002]
[Prior art]
2. Description of the Related Art Generally, a microwave oven is an appliance that cooks or heats a food placed in a cooking chamber using high frequency generated from a magnetron installed in an electrical room, and radiates the high frequency into the cooking chamber. By repeatedly changing the molecular arrangement of the water contained in the food, the food is cooked by generating frictional heat between the water molecules of the food and drink.
FIG. 1 is a perspective view of a conventional microwave oven with a door 8 opened. As shown in FIG. 1, the conventional microwave oven has a housing 1, and an electric equipment room 2 and a cooking room 3 partitioned and provided inside the housing 1. The electrical equipment room 2 has a magnetron 4 for generating a high frequency, and a blower for cooling the magnetron 4 and circulating air through the cooking chamber to discharge moisture and smell generated from the food to the outside. A fan 5 is provided.
[0003]
The cooking chamber 3 is formed in a box shape with an open front, the bottom surface 3a is rectangular, and the tip of the bottom surface 3a is flush with the front surface of the cooking chamber 3. A food is placed on the bottom surface 3a, and a turntable 6 for cooking the food by high frequency radiation emitted from the magnetron 4; and a rotation guide for rotatably supporting the turntable 6 ( (Not shown). The turntable 6 is connected to a motor (not shown) disposed below the cooking chamber 3 and rotates at a low speed.
[0004]
In addition, a door 8 that is rotatably connected to one side of the housing 1 and that opens and closes the cooking chamber 3 is provided on a front surface of the opened cooking chamber 3. The door 8 is formed in a rectangular shape, and a see-through member 9 having a large number of see-through holes is formed at a central portion thereof so that the inside of the cooking chamber 3 can be seen through. The front and back surfaces of the door 8 including the see-through member 9 are both flat. When the door 8 is closed, the back surface of the door 8 contacts the front surface of the cooking chamber 3, and the front surface of the door 8 is flat and the cooking chamber. 3 is closed.
[0005]
Therefore, when the microwave oven operates, the turntable 6 rotates at a low speed while the high frequency generated from the magnetron 4 is radiated to the cooking chamber 3, so that the food placed on the turntable 6 is cooked by the high frequency. You.
However, the conventional microwave oven configured as described above has a hexahedral shape, and a transparent member 9 formed at the center of the microwave oven so that the inside of the cooking chamber can be seen through has a structure in which the transparent member 9 and the door 8 form a plane. In order to check the cooking state of the food stored in the cooking chamber 3 during cooking, the user can look inside the cooking chamber 3 from the front of the door 8 according to the height of the transparent member 9. There are disadvantages that must be addressed.
[0006]
In particular, in the conventional door 8, since the see-through member 9 is flat and the portion where the see-through hole is formed is smaller than the entire area of the door 8, it is necessary to peek inside the cooking chamber. Must be located close to the see-through member 9. Therefore, it takes a little time for the user to check the cooking state of the food cooked in the cooking chamber 3, and also checks the cooking state of the food while performing other work around the microwave oven. There are drawbacks that cannot be done.
[0007]
[Problems to be solved by the invention]
Accordingly, the present invention has been made to solve the above-described problems of the related art, and has an object to easily and quickly confirm a cooking state of a food to be cooked in a cooking room at a plurality of positions outside a microwave oven. An object of the present invention is to provide a microwave oven as described above.
It is another object of the present invention to provide a microwave oven configured to easily manufacture a door in which a cooking room can be seen through at many positions.
[0008]
[Means for Solving the Problems]
To achieve the above object, the present invention includes a heating unit for cooking food, a cooking chamber having an opening, and a door that selectively opens and closes the cooking chamber, wherein the door includes the door. A first door piece having a frame that forms an outer edge of the opening and contacting an edge of the opening; and a second door piece having a front plate protruding forward from both sides of the frame. Provided is a microwave oven formed by joining a first door piece to the second door piece.
[0009]
The first door piece further includes an upper plate and a lower plate, and the upper plate and the lower plate are attached to upper and lower ends of the front plate to form a cooking space extending from the cooking chamber together with the front plate. Preferably.
Preferably, the front plate, the upper plate and the lower plate are made of a metal plate, and the front plate and the upper plate include a plurality of see-through holes.
The heating unit includes a magnetron that generates a high frequency for cooking the food, and the frame includes a plurality of frames that prevent the high frequency from leaking from the cooking chamber through the door when the opening is closed by the door. Preferably, it includes a choke groove.
[0010]
The front plate may be formed in a semi-cylindrical shape, and the upper plate and the lower plate may be formed in a semicircular shape so as to cover upper and lower portions of an internal space formed inside the front plate.
Preferably, the front plate has a box shape with an open top and bottom, and the top and bottom plates are formed in a rectangular shape to cover the upper and lower portions of an internal space formed inside the front plate.
The upper plate and the lower plate may be attached to an upper end and a lower end of the front plate by any one of welding, caulking, and riveting processes.
[0011]
The front plate may include a flange extending outward from both ends of the front plate, and the flanges may be attached to corresponding inner ends on both sides of the frame. Preferably, the flange is attached to the frame by any one of welding, caulking, and riveting.
It is preferable that the frame includes a step portion provided at an inner end on both sides of the frame to accommodate a flange portion of the front plate.
[0012]
The first door piece is manufactured by manufacturing a single body in which the frame, the upper surface plate, and the lower surface plate are integrally formed by press working, and bending the upper surface plate and the lower surface plate forward at a right angle. Is preferred.
Preferably, the heating unit includes a magnetron that generates a high frequency for cooking the food.
Preferably, the frame, the upper plate and the lower plate are integrally formed in a single structure.
[0013]
The front plate and the top plate preferably include a plurality of see-through holes.
It is preferable that the front plate and the top plate are configured so that the cooking chamber can be seen through at various positions.
Preferably, the lower plate includes a plurality of see-through holes, and the front plate, the upper plate, and the lower plate are configured to be able to see through the cooking chamber at a plurality of positions.
It is preferable that the microwave oven is formed of a transparent plate that covers a see-through hole of the front plate.
[0014]
The present invention also includes a heating unit for cooking the food, a cooking chamber having an opening for housing the food, and a door that selectively opens and closes the opening, wherein the door includes: A frame forming an outer edge of the door for contacting and closing the opening, and a front perspective projecting forward from the frame to allow a space formed by the cooking chamber and the closed door to be seen; And a cooking device including the member.
Preferably, the frame includes an upper plate and a lower plate attached to an upper end and a lower end of the front transparent member, together with the front transparent member, to form a cooking space extending from the cooking chamber.
It is preferable that the upper surface plate and the front see-through member include a see-through hole so that the space can be seen at many positions.
Preferably, the heating unit includes a magnetron for generating a high frequency for cooking the food.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 2 is a perspective view showing a state where a door opens a cooking chamber according to an embodiment of the present invention, and FIG. 3 is a perspective view showing a state where the door closes a cooking chamber.
As shown in the figure, the microwave oven according to the present invention has an electric equipment room 10 in which various electric components for generating high frequency are provided, a space for cooking food, and a front surface is open. It includes a cooking chamber 20 and a door 30 for opening and closing the open front of the cooking chamber 20.
[0016]
The electrical equipment room 10 includes a magnetron 11 that emits high frequency waves to the cooking chamber 20, and a cooling unit that cools the magnetron 11 and discharges moisture and odor generated from foods in the cooking chamber 20 to the outside of the microwave oven. A blower fan 12 is provided.
The cooking chamber 20 includes an upper wall 21, a bottom plate 22, left and right side walls 23 and 24, and a rear wall (not shown). An opening 25 is provided on the front surface, and the front surface is opened. A door 30 according to the present invention is rotatably connected to the front of the cooking chamber 20 to open and close the opening 25. A flat rectangular band surface 26 is provided at the edge of the opening 25 of the cooking chamber 20 so as to contact the edge of the door 30 to seal the opening 25 when the door 30 is closed.
[0017]
On the bottom plate 22 of the cooking chamber 20, there is provided a turntable 27 on which the food is placed and cooked, and a rotation support portion (not shown) for rotatably supporting the turntable 27. I have. The turntable 27 is rotated at a low speed by a motor (not shown) installed below the bottom plate 22 so that the high frequency is evenly transmitted to the food placed thereon, so that the food is cooked. Will be cooking.
The door 30 according to an embodiment of the present invention includes a frame 31 having a rectangular edge to tightly contact a rectangular band surface 26 forming an opening 25 of the cooking chamber 20 to prevent high-frequency leakage. And a see-through member 32 arranged at the opening of the frame 31 so that the cooking state can be checked through the inside of the frame 31.
[0018]
Since a large number of choke grooves 31 a are formed at regular intervals along the inner surface of the edge of the frame 31, when the frame 31 comes into contact with the rectangular band surface 26 on the front surface of the cooking chamber 20, the choke grooves are formed. The leak of high frequency from the cooking chamber 20 is prevented by 31a.
The see-through member 32 includes a front plate 33 projecting forward from both sides of the frame 31, that is, a curved surface outside the front surface of the cooking chamber 20, and a substantially semicircular upper plate 34 covering an upper portion of the front plate 33. And a substantially semicircular lower surface plate 35 covering the lower part of the front plate 33, and has a shape protruding forward in a substantially semi-cylindrical shape as a whole.
[0019]
On the other hand, since the transparent member 32 of the door 30 having a semi-cylindrical shape and protruding forward forms a cooking space 37 together with the cooking chamber 20, the distal end portion 22 a of the bottom plate 22 of the cooking chamber 20 is also substantially semicircular. And has a structure protruding forward of the cooking chamber. Therefore, with the door 30 closing the cooking chamber 20, the distal end portion 22 a of the bottom plate 22 is disposed on the lower plate 35 of the see-through member 32, and the inside of the semi-cylindrical see-through member 32 constitutes a cooking space 37. Will be.
[0020]
The front plate 33 and the top plate 34 of the see-through member 32 are densely arranged with see-through holes of a certain size so that the cooking chamber 20 can be seen through, so that the front plate 33 and the top plate 34 of the see-through member 32 pass through. The inside of the cooking room 20 can be peeped. That is, the microwave oven according to the present invention can see through the cooking chamber 20 not only from the front of the cooking chamber 20 but also from above and from both sides, so that the user can perform other tasks near the microwave oven while performing other tasks. Can check the cooking state of the food stored in the storage device.
[0021]
On the other hand, a transparent window (not shown) made of a transparent material is attached to the outer surface of the see-through member 32 having the see-through hole, so that the inside of the cooking chamber communicates with the outside of the cooking chamber through the see-through hole. In addition, the inside of the cooking chamber 20 can be peeped through the transparent member 32.
However, in general, since the microwave oven is disposed at the eye level of the user or lower in the cooking space, in the present embodiment, a see-through hole for see-through is formed in the lower surface plate 35 of the see-through member 32. Although not shown, the lower surface plate 35 may be formed with a transparent hole depending on the installation height of the microwave oven so that the inside of the cooking chamber 20 can be peeped.
[0022]
As shown in FIGS. 2 and 3, since the see-through member 32 of the microwave oven door 30 has a semi-cylindrical shape protruding forward, a phenomenon in which water generated from a cooked food condenses on the inner surface of the see-through member 32 during cooking. It can be effectively prevented.
4 and 5 show an assembly structure of a door according to an embodiment of the present invention. FIG. 4 is an exploded perspective view of the door, and FIG. 5 is a perspective view of a combined door.
As shown in the figure, the door 30 protruding forward has a simple structure in which two metal plates are combined. That is, the door 30 is a first door piece 40 in which a frame 31 for sealing the cooking chamber 20 and upper and lower plates 34 and 35 of the see-through member 32 are integrally formed on the upper and lower portions of the frame 31, respectively. And a second door piece 50 formed by the front plate 33 of the see-through member 32.
[0023]
The first door piece 40 is formed by pressing the frame 31 and the upper surface plate 34 and the lower surface plate 35 of the see-through member 32 integrally with each other by press working. It is made by bending at an angle. Next, the second door piece 50 formed by pressing the front plate 33 of the see-through member 32 by pressing is joined to the first door piece 40 thus obtained so as to form a curved surface protruding forward.
An operation of connecting the first door piece 40 and the second door piece 50 will be described. In order to couple the second door piece 50 to the first door piece 40, flange portions 51 are provided at both ends of the second door piece 50 so as to extend outward at an angle of about 90 ° from the edge of the front plate 33. . Also, on both sides of the inner surface of the frame 31 of the first door piece 40, a step portion 41 to which the flange portion 51 is connected is formed so as to be combined with the flange portion 51 of the second door piece 50 to form one plane. Is provided. Preferably, the width of the step portion 41 is slightly larger than the width of the flange portion 51. Therefore, both ends of the second door piece 50 are fixed to both ends of the first door piece 40 by welding the flange portion 51 to the frame 31 in a state where the flange portion 51 is connected to the step portion 41. Is done.
[0024]
The frame 31 and the flange 51 form a flat surface in a state where the flanges 51 are coupled to both side surfaces of the frame 31. Therefore, no gap is formed between the frame 31 and the rectangular band surface 26 of the cooking chamber 20 (see FIG. 2).
As shown in FIG. 5, in a state where the flange portion 51 is joined to the step portion 41 and then welded, the upper surface plate 34 and the lower surface plate 35 of the see-through member 32 provided on the first door piece 40 are respectively connected to the second door. The upper and lower portions of the front plate 33 of the see-through member 32 forming the piece 50 are covered, and the edges of the upper plate 34 and the lower plate 35 are arranged corresponding to the upper and lower ends of the front plate 33, respectively.
[0025]
After that, when welding between the upper end of the front plate 33 and the edge of the upper plate 34 and the lower end of the front plate 33 and the edge of the lower plate 35 inside the second door piece 50, the first door piece 50 becomes the first door. The door 30 is firmly fixed to the piece 40, and the assembly of the door 30 is completed. Here, reference numerals 61 and 62 indicate welding lines formed between the upper end of the front plate 33 and the edge of the upper plate 34, and between the lower end of the front plate 33 and the edge of the lower plate 35, respectively.
[0026]
Although the first door piece 40 and the second door piece 50 have been illustrated as being connected by projection welding, the connection method is not limited to this, and for example, the first door piece and the second door piece are different from each other. The connection may be made by welding, caulking, or riveting. Further, in the present embodiment, the first door piece and the second door piece are described as being manufactured by press working, but the present invention is not limited to this, and other methods can be used.
[0027]
6 and 7 are an exploded perspective view and a combined perspective view of a door according to another embodiment of the present invention. As shown in the figure, another embodiment of the present invention shows a structure in which the transparent member 32 of the door 30 is formed in a rectangular box shape and protrudes forward, and the transparent member 32 is shown in FIGS. This is to illustrate that it can be formed into various shapes other than the semi-cylindrical shape.
Since the door 30 of FIG. 6 has the same coupling structure as the door 30 of FIGS. 2 to 4 except for its shape, further description of the door 30 shown in FIGS. 6 and 7 is omitted.
[0028]
【The invention's effect】
As described above, the microwave oven according to the present invention has a structure in which the door protrudes forward, so that the inside of the cooking chamber can be seen through at various positions and angles. Therefore, there is an advantage that the cooking state of the food cooked in the cooking chamber can be quickly confirmed at many positions.
In addition, the microwave oven according to the present invention has a merit that the door protruding forward is formed into two door pieces by pressing and then interconnected by welding, so that the manufacturing is simple and quick. It is.
[Brief description of the drawings]
FIG. 1 is a perspective view of a conventional microwave oven in a state where a door opens a cooking chamber.
FIG. 2 is a perspective view of the microwave oven showing a state in which a cooking chamber is opened with a door showing one embodiment of the present invention.
FIG. 3 is a perspective view of the microwave oven in a state where the door shown in FIG. 2 closes a cooking chamber.
FIG. 4 is an exploded perspective view of the microwave oven door shown in FIGS. 2 and 3;
5 is an assembled perspective view of the door shown in FIG. 5;
FIG. 6 is an exploded perspective view of a door according to another embodiment of the present invention.
FIG. 7 is an assembled perspective view of the door shown in FIG. 6;
[Explanation of symbols]
Reference Signs List 20 cooking chamber 22 bottom plate 30 door 31 frame 32 see-through member 33 front plate 34 top plate 35 bottom plate 40 first door piece 41 step 50 second door piece 51 flange

Claims

A heating unit for cooking the food;
A cooking chamber having an opening;
A door for selectively opening and closing the cooking chamber,
The door includes a first door piece having a frame forming an outer edge of the door and contacting the edge of the opening, and a second door piece having a front plate protruding forward from both sides of the frame. The microwave oven, wherein the door is formed by coupling the first door piece to the second door piece.

The first door piece further includes an upper plate and a lower plate, and the upper plate and the lower plate are attached to upper and lower ends of the front plate to form a cooking space extending from the cooking chamber together with the front plate. The microwave oven according to claim 1, wherein the microwave oven is used.

3. The microwave oven according to claim 2, wherein the front plate, the upper plate and the lower plate are made of a metal plate, and the front plate and the upper plate include a plurality of see-through holes.

The heating unit includes a magnetron that generates a high frequency for cooking the food, and the frame includes a plurality of frames that prevent the high frequency from leaking from the cooking chamber through the door when the opening is closed by the door. 2. The microwave oven according to claim 1, further comprising a choke groove.

The front plate is formed in a semi-cylindrical shape, and the upper plate and the lower plate are formed in a semicircle so as to cover upper and lower portions of an internal space formed inside the front plate. 2. The microwave oven according to 2.

The front plate has a box shape with an open top and bottom surface, and the top plate and the bottom plate are formed in a rectangular shape to cover the top and bottom of an internal space formed inside the front plate. The microwave oven according to claim 2, wherein

3. The microwave oven according to claim 2, wherein the upper plate and the lower plate are attached to an upper end and a lower end of the front plate by any one of welding, caulking and riveting processes.

3. The microwave oven according to claim 2, wherein the front plate includes a flange portion extending outward from both ends of the front plate, and the flange portions are attached to corresponding inner ends on both sides of the frame.

9. The microwave oven according to claim 8, wherein the flange is attached to the frame by any one of welding, caulking, and riveting.

10. The microwave oven according to claim 9, wherein the frame includes a step portion provided at an inner end on both sides of the frame to accommodate a flange portion of the front plate.

The first door piece is manufactured by manufacturing a single body in which the frame, the upper surface plate, and the lower surface plate are integrally formed by press working, and bending the upper surface plate and the lower surface plate forward at a right angle. 3. The microwave oven according to claim 2, wherein:

The microwave oven according to claim 1, wherein the heating unit includes a magnetron that generates a high frequency for cooking the food.

3. The microwave oven according to claim 2, wherein the frame, the upper plate and the lower plate are integrally formed in a single structure.

3. The microwave oven according to claim 2, wherein the front plate and the top plate include a plurality of see-through holes.

15. The microwave oven according to claim 14, wherein the front plate and the top plate are configured to allow the cooking chamber to be seen through a plurality of positions.

3. The microwave oven according to claim 2, wherein the lower plate includes a plurality of see-through holes, and the front plate, the upper plate, and the lower plate are configured to be able to see through the cooking chamber at a plurality of positions.

The microwave oven according to claim 2, wherein the microwave oven is formed of a transparent plate that covers a see-through hole of the front panel.

A heating unit for cooking the food;
A cooking chamber having an opening for containing food,
A door that selectively opens and closes the opening,
The door includes a frame forming an outer edge of the door to close the door in contact with the opening, and projects forward from the frame, and can see through a space formed by the cooking chamber and the closed door. And a front transparent member.

The frame may include an upper plate and a lower plate attached to an upper end and a lower end of the front transparent member to form a cooking space extending from the cooking chamber together with the front transparent member. 19. The cooking device according to 18.

20. The cooking apparatus according to claim 19, wherein the top plate and the front see-through member include a see-through hole so that the space can be seen at many positions.

21. The cooking apparatus according to claim 20, wherein the heating unit includes a magnetron that generates a high frequency for cooking the food.