JP2016169919A - Heating cooker - Google Patents

Heating cooker Download PDF

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JP2016169919A
JP2016169919A JP2015050829A JP2015050829A JP2016169919A JP 2016169919 A JP2016169919 A JP 2016169919A JP 2015050829 A JP2015050829 A JP 2015050829A JP 2015050829 A JP2015050829 A JP 2015050829A JP 2016169919 A JP2016169919 A JP 2016169919A
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light
housing
led
movable
movable part
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JP6398083B2 (en
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石井　健
Takeshi Ishii
健 石井
早川　雄二
Yuji Hayakawa
雄二 早川
功 水田
Isao Mizuta
功 水田
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Panasonic Intellectual Property Management Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a heating cooker capable of improving visibility and operability of a movable part for operation.SOLUTION: A switch 18 is arranged so as to close a contact point by pressing a movable part 15. An LED 19 is attached to a circuit board at one place and at a substantial center of a surface on which the movable part 15 is projected in a housing 17 direction. When the LED 19 emits light, light from the LED 19 spreads while repeatedly reflected between the back face of the movable part 15 and the light diffusion surface of the housing 17, penetrates a light-emitting part 16, and is radiated to the front face of the movable part 15. Consequently, visibility and operability of the movable part 15 can be improved.SELECTED DRAWING: Figure 2

Description

本発明は、例えば、高周波加熱機能や輻射加熱機能を備えた加熱調理器の操作装置に関するものである。   The present invention relates to an operation device for a cooking device having a high-frequency heating function and a radiant heating function, for example.

従来の加熱調理器は、箱状の加熱調理器の筐体内部に、被加熱物を収容する加熱室が、設けられている。加熱室は、前面に被加熱物を出し入れするための前面開口部が設けられている。この前面開口部には、扉が、下部を軸支され、縦方向に開閉可能に取り付けられている。   The conventional cooking device is provided with a heating chamber for accommodating an object to be heated inside a box-shaped cooking device. The heating chamber is provided with a front opening for taking in and out the object to be heated on the front. In the front opening, a door is pivotally supported at the lower part and is attached to be openable and closable in the vertical direction.

加熱調理器の前面開口部の隣には、操作部が設けられている。この操作部には、スタートキーなどの複数の操作キーと、液晶ディスプレイやＬＥＤ（発光ダイオード）などの表示部が設けられ、加熱制御に関連する条件の設定、指示を操作キーで行い、設定条件や調理経過などの情報が、表示部に表示されるようにしている（例えば、特許文献１参照）。   An operation unit is provided next to the front opening of the cooking device. The operation unit is provided with a plurality of operation keys such as a start key and a display unit such as a liquid crystal display and an LED (light emitting diode). Conditions and instructions related to heating control are set using the operation keys. And information such as cooking progress are displayed on the display unit (for example, see Patent Document 1).

特許第４３０９９０３号公報Japanese Patent No. 4309903

しかしながら、前記従来の構成では、光源である発光ダイオードは、操作部の回路基板上に、操作キーに隣接して設けられた各発光部（発光必要領域）に対応して、分散して複数個設けられている。もし、発光させる発光部に対して、発光ダイオードを集中して設けると、点状の光源（点光源）になる。点光源の状態になると、発光ダイオードの光が広く分散しにくいため、発光部は、光源周辺では発光が強く、光源から離れた位置では、発光が弱くなる。したがって、広い発光部に対して、発光する範囲が狭く限られるため、意匠性が損なわれるという課題があった。   However, in the conventional configuration, a plurality of light emitting diodes as light sources are dispersed and corresponded to each light emitting portion (light emission required region) provided adjacent to the operation key on the circuit board of the operation portion. Is provided. If the light emitting diodes are concentrated on the light emitting portion that emits light, a point light source (point light source) is obtained. In the state of the point light source, the light emitted from the light emitting diode is difficult to disperse widely, so that the light emitting part emits light strongly around the light source and weakens at a position away from the light source. Therefore, since the light emission range is limited to a wide light emitting portion, there is a problem that the design is impaired.

また、発光する範囲を広げるためには、光源と発光させる領域との間隔を離して、光を分散させなければならず、操作装置の奥行きを長くする必要があるので、操作装置の大型化、延いては、装置全体の大型化の原因になってしまうという課題があった。   Further, in order to widen the light emission range, the light source and the light emitting region must be spaced apart to disperse the light, and it is necessary to increase the depth of the operation device. As a result, there was a problem that the entire apparatus would be increased in size.

本発明は前記従来の課題を解決するもので、点光源を使用しながら、奥行きを長くすることなく、発光部を広く発光させることができる加熱調理器を提供することを目的とする。   This invention solves the said conventional subject, and it aims at providing the heating cooker which can light-emit a light emission part widely, without lengthening, using a point light source.

本発明の加熱調理器は、筐体内に設けられた加熱室と、前記加熱室の前面開口部に開閉可能に設けられた扉と、前記扉の前面に設けられた操作時に押圧する可動部と、前記可動部の外周に配置され光を透過させる発光部と、前記可動部と前記発光部とが取り付けられたハウジングと、前記可動部に対向する前記ハウジングに形成した光拡散部と、前記扉内に設けられた回路基板と、前記回路基板に取り付けられたＬＥＤとスイッチと、を備え、前記スイッチは、前記可動部を押すことにより接点を閉じるよう配置され、前記ＬＥＤは前記可動部を前記ハウジング方向に投影した面の略中央部でかつ１か所に集められて前記回路基板に取り付けられており、前記ＬＥＤが発光時、前記ＬＥＤからの光は、前記可動部の背面と前記光拡散部との間で反射を繰り返して広がり、前記発光部を透過して、前記
可動部の前面を照らすものである。 The heating cooker of the present invention includes a heating chamber provided in a casing, a door provided to be openable and closable at a front opening of the heating chamber, and a movable part that is pressed at the time of operation provided on the front surface of the door. A light emitting part disposed on an outer periphery of the movable part to transmit light, a housing to which the movable part and the light emitting part are attached, a light diffusion part formed on the housing opposite to the movable part, and the door A circuit board provided in the circuit board, and an LED and a switch attached to the circuit board, wherein the switch is arranged to close the contact point by pressing the movable part, and the LED At the substantially central portion of the surface projected in the housing direction and collected at one place and attached to the circuit board, when the LED emits light, the light from the LED is diffused between the rear surface of the movable portion and the light diffusion Between departments Spreads repeatedly reflected, and transmitted through the light-emitting portion, it is intended to illuminate the front face of the movable portion.

これにより、点光源を使用しながら、奥行きを長くすることなく、発光部を広く発光させることができる   Thereby, it is possible to widely emit the light emitting unit without using a point light source without increasing the depth.

本発明に係る加熱調理器によれば、操作のための可動部の視認性、操作性を向上できる。   According to the heating cooker which concerns on this invention, the visibility of the movable part for operation and operativity can be improved.

本発明の実施の形態１における加熱調理器としてのオーブン機能付き電子レンジの正面図The front view of the microwave oven with an oven function as a heating cooker in Embodiment 1 of this invention 図１に示した電子レンジの操作表示部の部分分解斜視図The partial exploded perspective view of the operation display part of the microwave oven shown in FIG. 図１に示した電子レンジのスタートキーの斜視図The perspective view of the start key of the microwave oven shown in FIG. 図１に示した電子レンジの扉体の下部縦断面図Lower longitudinal section of the door of the microwave oven shown in FIG.

第１の発明は、筐体内に設けられた加熱室と、前記加熱室の前面開口部に開閉可能に設けられた扉と、前記扉の前面に設けられた操作時に押圧する可動部と、前記可動部の外周に配置され光を透過させる発光部と、前記可動部と前記発光部とが取り付けられたハウジングと、前記可動部に対向する前記ハウジングに形成した光拡散部と、前記扉内に設けられた回路基板と、前記回路基板に取り付けられたＬＥＤとスイッチと、を備え、前記スイッチは、前記可動部を押すことにより接点を閉じるよう配置され、前記ＬＥＤは前記可動部を前記ハウジング方向に投影した面の略中央部でかつ１か所に集められて前記回路基板に取り付けられており、前記ＬＥＤが発光時、前記ＬＥＤからの光は、前記可動部の背面と前記光拡散部との間で反射を繰り返して広がり、前記発光部を透過して、前記可動部の前面を照らすものである。   1st invention is the heating chamber provided in the housing | casing, the door provided in the front opening part of the said heating chamber so that opening and closing was possible, the movable part pressed at the time of operation provided in the front surface of the said door, A light emitting portion disposed on an outer periphery of the movable portion and transmitting light; a housing in which the movable portion and the light emitting portion are attached; a light diffusion portion formed in the housing opposite to the movable portion; and in the door A circuit board provided; and an LED and a switch attached to the circuit board, wherein the switch is arranged to close a contact point by pushing the movable part, and the LED moves the movable part toward the housing. And is attached to the circuit board at a substantially central portion of the surface projected onto the circuit board, and when the LED emits light, the light from the LED emits light from the back surface of the movable portion, the light diffusion portion, and Reflection between Spread return Ri, is transmitted through the light-emitting portion is intended to illuminate the front face of the movable portion.

第２の発明は、第１の発明において、光拡散部が、可動部に向かってラッパ状に広がるように形成されたものである。   According to a second invention, in the first invention, the light diffusion portion is formed so as to spread in a trumpet shape toward the movable portion.

第３の発明は、第１の発明において、可動部の背面と光拡散部の前面とが、光を反射し易い色で調色成形されているものである。   According to a third invention, in the first invention, the back surface of the movable portion and the front surface of the light diffusion portion are toned and molded in a color that easily reflects light.

第４の発明は、スイッチは、可動部をハウジング方向に投影した面の略中心部から外れた位置に１つだけ配置したものである。   According to a fourth aspect of the present invention, only one switch is arranged at a position deviating from a substantially central portion of the surface projected in the housing direction.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

（実施の形態１）
図１は本発明に係る実施の形態１における加熱調理器としてのオーブン機能付き電子レンジの正面図、図２は図１に示した電子レンジの操作表示部の部分分解斜視図、図３は図１に示した電子レンジのスタートキーの斜視図、図４は図１に示した電子レンジの扉体の下部縦断面図である。 (Embodiment 1)
1 is a front view of a microwave oven with an oven function as a heating cooker according to Embodiment 1 of the present invention, FIG. 2 is a partially exploded perspective view of an operation display unit of the microwave oven shown in FIG. 1, and FIG. 1 is a perspective view of a start key of the microwave oven shown in FIG. 1, and FIG. 4 is a lower longitudinal sectional view of a door body of the microwave oven shown in FIG.

第１の実施の形態に係る加熱調理器であるオーブン機能付き電子レンジ１（以下、電子レンジ１という）は、略直方体の筐体２内に加熱室３が設けられ、加熱室３は、筐体２の前面に、前面開口部４が設けられている。前面開口部４の全周には、フランジ５が形成されている。前面開口部４及びフランジ５に対向して、扉６が、取り付けられている。   The microwave oven 1 with an oven function (hereinafter referred to as a microwave oven 1), which is a heating cooker according to the first embodiment, is provided with a heating chamber 3 in a substantially rectangular parallelepiped housing 2, and the heating chamber 3 includes a housing. A front opening 4 is provided on the front surface of the body 2. A flange 5 is formed on the entire circumference of the front opening 4. A door 6 is attached to face the front opening 4 and the flange 5.

なお、本実施の形態においては、加熱室３の前面開口部４側を前方とし、この前方より後方に向かって右側を右方とし、前方より筐体２に向かって左側を左方として、以下の説明を行う。   In the present embodiment, the front opening 4 side of the heating chamber 3 is the front, the right side is the right from the front to the rear, the left is the left from the front toward the housing 2, and the following Will be explained.

扉６は、筐体２に、水平方向に設けられた回動軸で枢支され、前面開口部４を開閉可能に、構成されている。扉６の上部に、ハンドル７が設けられており、電子レンジ１の使用者は、ハンドル７を手で握ることにより、扉６を上下方向に回動させ、開閉できる。   The door 6 is pivotally supported on the housing 2 by a rotation shaft provided in the horizontal direction, and is configured to be able to open and close the front opening 4. A handle 7 is provided on the upper portion of the door 6, and a user of the microwave oven 1 can open and close the handle 6 by rotating the door 6 in the vertical direction by grasping the handle 7 with a hand.

加熱室３の底面には、底板が設けられ、底板は、食品などの被加熱物を載置できる。   A bottom plate is provided on the bottom surface of the heating chamber 3, and a heated object such as food can be placed on the bottom plate.

加熱室３の下方には、電気室８が、設けられている。電気室８には、マイクロ波を発振するマグネトロン（図示せず）と、このマグネトロンに電力を供給するマグネトロン駆動電源（図示せず）とが、設けられている。導波管は、マグネトロンで発生したマイクロ波を、加熱室３へ伝送する。   Below the heating chamber 3, an electric chamber 8 is provided. The electric chamber 8 is provided with a magnetron (not shown) that oscillates microwaves, and a magnetron driving power source (not shown) that supplies electric power to the magnetron. The waveguide transmits the microwave generated by the magnetron to the heating chamber 3.

加熱室３の奥面の後方には、熱源であるコンベクションヒータ（図示せず）が配設されている。コンベクションヒータは、加熱室３の奥面の後方に隣接して形成された密閉空間内に、コイル状に巻いた状態で、配置されている。コンベクションヒータの中央には、循環ファンが設けられている。この循環ファンが回転駆動されることで、加熱室３の空気は、吸気孔から吸引され、コンベクションヒータによって加熱されて、排気孔から再び加熱室３へ戻る。これにより、被加熱物を均一に高温加熱する。   A convection heater (not shown), which is a heat source, is disposed behind the inner surface of the heating chamber 3. The convection heater is disposed in a coiled state in a sealed space formed adjacent to the rear of the back surface of the heating chamber 3. A circulation fan is provided in the center of the convection heater. By rotating the circulation fan, the air in the heating chamber 3 is sucked from the intake hole, heated by the convection heater, and returned to the heating chamber 3 from the exhaust hole again. Thereby, a to-be-heated material is uniformly heated at high temperature.

加熱室３の上面側には、熱源である上部ヒータ（図示せず）が、設けられている。この上部ヒータは、発熱することによって、加熱室３の被加熱物を輻射熱加熱し、食品の表面に焦げ目を付けることができる。   On the upper surface side of the heating chamber 3, an upper heater (not shown) as a heat source is provided. When the upper heater generates heat, the object to be heated in the heating chamber 3 can be radiantly heated to burn the surface of the food.

加熱室３の左側壁の外側面に、蒸気を発生させる蒸気発生部（図示せず）を備えている。加熱室３の下方には、加熱室３に送る蒸気を生成するための水タンク８が、抜き差し可能に、取り付けられている。水タンク８の水は、蒸気発生部に供給されて、蒸気となる。発生した蒸気は、蒸気発生部と加熱室３とを接続する蒸気パイプによって、加熱室３に供給される。   A steam generation part (not shown) for generating steam is provided on the outer surface of the left side wall of the heating chamber 3. A water tank 8 for generating steam to be sent to the heating chamber 3 is attached below the heating chamber 3 so as to be removable. The water in the water tank 8 is supplied to the steam generation unit and becomes steam. The generated steam is supplied to the heating chamber 3 by a steam pipe that connects the steam generating unit and the heating chamber 3.

正面視した扉６の一方の側方の略長方形状の領域には、操作表示部９である、タッチ液晶パネル１０、戻るキー１１、取り消しキー１２、スタートキー１３が、配置されている。   A touch liquid crystal panel 10, a return key 11, a cancel key 12, and a start key 13, which are operation display units 9, are arranged in a substantially rectangular area on one side of the door 6 when viewed from the front.

略長方形状の領域の最上部には、タッチ液晶パネル１０が、配置されている。タッチ液晶パネル１０は、電子レンジ１の使用者が、調理に関する所定の操作入力するために使用する。タッチ液晶パネル１０の表面は、樹脂製薄板、例えば、ＰＭＭＡ（アクリル）樹脂製の厚み１．５ｍｍの可撓性を有する略長方形のシート状パネルで構成され、固定の文字と記号により、タッチ液晶パネル１０への操作入力の状態と、調理状況を表示する。タッチ液晶パネル１０の後方（筐体側）には、タッチ液晶パネル１０を駆動するための回路基板１４が、設けられている。   The touch liquid crystal panel 10 is disposed at the top of the substantially rectangular area. The touch liquid crystal panel 10 is used by a user of the microwave oven 1 to input a predetermined operation related to cooking. The surface of the touch liquid crystal panel 10 is formed of a resin thin plate, for example, a substantially rectangular sheet-like panel made of PMMA (acrylic) resin and having a thickness of 1.5 mm. The state of operation input to the panel 10 and the cooking status are displayed. A circuit board 14 for driving the touch liquid crystal panel 10 is provided behind the touch liquid crystal panel 10 (the housing side).

タッチ液晶パネル１０の下側領域には、戻るキー１１、取り消しキー１２が、左右に並べて配置されている。戻るキー１１、取り消しキー１２の下側の領域には、調理動作を開始させる、スタートキー１３が、取り付けられている。スタートキー１３は、使用者が押し込む可動部１５と、可動部１５の周囲に配置された発光部１６とが、取り付けられている。   In the lower area of the touch liquid crystal panel 10, a return key 11 and a cancel key 12 are arranged side by side. A start key 13 for starting a cooking operation is attached to the area below the return key 11 and the cancel key 12. The start key 13 is provided with a movable part 15 to be pushed by the user and a light emitting part 16 disposed around the movable part 15.

この操作表示部９が取り付けられた略長方形状の領域は、この領域の断面を筐体２側へ投影した時、その大部分の領域が、前面開口部４に重なるよう、配置されている。   The substantially rectangular region to which the operation display unit 9 is attached is arranged so that most of the region overlaps the front opening 4 when a cross section of this region is projected onto the housing 2 side.

扉６は、透過窓２３と、ハンドル７とを有する。扉６の右側の側方に、タッチ液晶パネル１０が、取り付けられている。タッチ液晶パネル１０は、回路基板１４に実装されている。   The door 6 has a transmission window 23 and a handle 7. A touch liquid crystal panel 10 is attached to the right side of the door 6. The touch liquid crystal panel 10 is mounted on the circuit board 14.

複数部品を積層して組み立てられる操作表示部９は、タッチ液晶パネル１０、戻るキー１１、取り消しキー１２及びスタートキー１３を備えて、扉６の縦辺部に沿って設けられる。操作表示部９内には、上下方向に、風路（図示せず）が形成される。この風路は、回路基板１４の周囲に形成されている。風路は、外部へ通じており、風路内に外部空気が流入するように構成されている。   The operation display unit 9 assembled by laminating a plurality of components includes a touch liquid crystal panel 10, a return key 11, a cancel key 12, and a start key 13, and is provided along the vertical side portion of the door 6. An air path (not shown) is formed in the operation display unit 9 in the vertical direction. This air path is formed around the circuit board 14. The air passage leads to the outside, and is configured such that external air flows into the air passage.

スタートキー１３は、可動部１５と発光部１６との後方に配置されたハウジング１７を備えている。ハウジング１７は、前方に向かって、ラッパ状に広がって形成されている。ハウジング１７の後方には、スイッチ１８と光源であるＬＥＤ１９（発光ダイオード）とが、配置されている。スイッチ１８と光源であるＬＥＤ１９は、回路基板１４に取り付けられている。   The start key 13 includes a housing 17 disposed behind the movable portion 15 and the light emitting portion 16. The housing 17 is formed in a trumpet shape toward the front. A switch 18 and an LED 19 (light emitting diode) as a light source are arranged behind the housing 17. The switch 18 and the LED 19 as a light source are attached to the circuit board 14.

可動部１５とハウジング１７との間には、導光空間が設けられている。可動部１５の背面と、ハウジング１７の前面とは、光をより反射し易くするため、白色で調色成形している。なお、色は白色に限るものではなく、光を反射し易い色であれば、その他の色を用いてもよい。   A light guide space is provided between the movable portion 15 and the housing 17. The back surface of the movable portion 15 and the front surface of the housing 17 are toned and molded in white to make it easier to reflect light. Note that the color is not limited to white, and other colors may be used as long as they easily reflect light.

また、発光部１６は、ハーフミラーメッキされている。発光部１６は、操作表示部９の表面に取り付けられたシート状パネル２０の後方に、配置されており、ＬＥＤ１９が非発光時には、メッキ色による光沢があり、ＬＥＤ１９が発光時には、発光領域が円形状にムラなく発光することにより、意匠性を高めることができる。   The light emitting unit 16 is half mirror plated. The light emitting unit 16 is disposed behind the sheet-like panel 20 attached to the surface of the operation display unit 9. When the LED 19 is not emitting light, the light emitting portion 16 has a glossy plating color. When the LED 19 emits light, the light emitting area is circular. The design can be improved by emitting light evenly in the shape.

ＬＥＤ１９が発光すると、光は、可動部１５の背面とハウジング１７の前面のラッパ状に傾斜した光拡散面とで反射を繰り返し、導光空間を外側へ広がって、発光部１６へ進む。   When the LED 19 emits light, the light repeats reflection on the back surface of the movable portion 15 and the light diffusing surface inclined in the trumpet shape on the front surface of the housing 17, spreads the light guide space to the outside, and proceeds to the light emitting portion 16.

次に、上記構成を有する電子レンジ１の動作を説明する。   Next, the operation of the microwave oven 1 having the above configuration will be described.

使用者は、タッチ液晶パネル１０、戻るキー１１、取り消しキー１２を操作して、調理条件を入力、設定する。設定を完了すると、発光部１６が発光し、使用者が可動部１５を認識し易くして、操作することを促す。   The user operates the touch liquid crystal panel 10, the return key 11, and the cancel key 12 to input and set cooking conditions. When the setting is completed, the light emitting unit 16 emits light, and the user can easily recognize the movable unit 15 and prompt the user to operate it.

また、電子レンジ１では、操作表示部９が、扉６の側方に配置されているので、従来構成のように、扉６の下部に配置されている場合に比較して、タッチ液晶パネル１０、戻るキー１１、取り消しキー１２及びスタートキー１３が高い位置に取り付けられることになり、視認性、操作性が向上する。特に、キッチンの下部に筐体２をビルトインした場合に、タッチ液晶パネル１０、戻るキー１１、取り消しキー１２及びスタートキー１３の操作のために屈む必要がなくなり、顕著な効果が得られる。   Moreover, in the microwave oven 1, since the operation display part 9 is arrange | positioned at the side of the door 6, compared with the case where it arrange | positions in the lower part of the door 6 like the conventional structure, the touch liquid crystal panel 10 is provided. The return key 11, the cancel key 12, and the start key 13 are attached at a high position, and visibility and operability are improved. In particular, when the housing 2 is built in the lower part of the kitchen, it is not necessary to bend for the operation of the touch liquid crystal panel 10, the return key 11, the cancel key 12, and the start key 13, and a remarkable effect is obtained.

また、操作表示部９の幅方向縁部が、加熱室３に重なる位置なので、筐体２を大型化する必要がない。同一サイズの加熱室３において、仮に操作表示部９の幅方向縁部を加熱室３に重ねない位置とした場合、その分、操作表示部９が筐体２の縦辺部から外方へ突出す
る。この突出分に合わせて筐体２の壁厚を厚くすれば、筐体２が大型化する。本構成は、操作表示部９の一部分を加熱室３に重ねることで、このような筐体２の大型化を回避している。 Further, since the edge in the width direction of the operation display unit 9 overlaps the heating chamber 3, it is not necessary to increase the size of the housing 2. In the heating chamber 3 of the same size, if the edge in the width direction of the operation display unit 9 is set so as not to overlap the heating chamber 3, the operation display unit 9 protrudes outward from the vertical side of the housing 2 by that amount. To do. If the wall thickness of the housing 2 is increased in accordance with the protrusion, the housing 2 is increased in size. This configuration avoids such an increase in the size of the casing 2 by overlapping a part of the operation display unit 9 on the heating chamber 3.

このように構成されているのでＬＥＤ１９が発光すると、その光はまずＬＥＤ１９の対向する可動部１５の背面で反射され、対向する光拡散面２１で更に反射される。反射した光は、可動部１５の背面と光拡散面２１との間で反射を繰り返して広がり、発光部１６を透過して、可動部１５の前面を照らす。発光部１６に反射光が照射されるようにしたので、ＬＥＤ１９が点光源であっても、発光部１６は全域で端部まで発光することが可能となり、光を広げるための奥行きを大きくとらなくても、発光領域が円形状にムラなく、意匠性を高めることができる。   With this configuration, when the LED 19 emits light, the light is first reflected by the back surface of the movable portion 15 facing the LED 19 and further reflected by the light diffusion surface 21 facing the LED 19. The reflected light is repeatedly reflected and spread between the back surface of the movable portion 15 and the light diffusion surface 21, passes through the light emitting portion 16, and illuminates the front surface of the movable portion 15. Since the light emitting unit 16 is irradiated with the reflected light, even if the LED 19 is a point light source, the light emitting unit 16 can emit light to the end in the entire area, and does not take a large depth for spreading the light. Even in this case, the light emitting region is uniform in a circular shape, and the design can be improved.

そして、可動部１５の背面側には突起部２２を形成し、回路基板１４上で、ＬＥＤの外側に設置された、機械接点式のスイッチ１８を押下できるように、構成されている。前述のように、可動部１５の背面側中心付近には光源が設けられ、可動部１５の中心付近の回路基板１４上に、ＬＥＤ１９を配置しているので、スイッチ１８を可動部１５の中心付近に配置が困難である。   And the protrusion part 22 is formed in the back side of the movable part 15, and it is comprised so that the mechanical contact type switch 18 installed on the outer side of LED on the circuit board 14 can be pressed down. As described above, the light source is provided near the center on the back side of the movable portion 15, and the LED 19 is disposed on the circuit board 14 near the center of the movable portion 15, so that the switch 18 is located near the center of the movable portion 15. It is difficult to arrange.

そこで、可動部１５は、前面から見た時の加熱室３方向への投影面積が広いので、片方の端部側だけにスイッチ１８を配置すると操作性が悪くため、スイッチ１８がない側の可動部１５の背面側端部に突起部２２が設けることにより、スイッチ１８がない側については、可動部１５を先当たりさせ、スイッチ１８を押し込むようにすることですることで、可動部１５のどの箇所が押下された場合でも、操作性を悪化させることなく入力状態なる構成としたことにより、視認性が向上するとともに、スタートキー１３の可動部１５の配置の面積を極力広くする場合に、スペース効率のよい配置方法となる。   Therefore, since the movable portion 15 has a large projected area in the direction of the heating chamber 3 when viewed from the front, if the switch 18 is disposed only on one end side, the operability is poor, and the movable portion 15 is movable on the side without the switch 18. By providing the protrusion 22 at the end of the back side of the part 15, on the side where the switch 18 is not provided, the movable part 15 is made to come first, and the switch 18 is pushed in. Even when the location is pressed, the configuration is such that the input state is maintained without deteriorating the operability, so that the visibility is improved and the space for disposing the movable portion 15 of the start key 13 is increased as much as possible. This is an efficient arrangement method.

また、可動部１５の外側に設けられた発光部１６が点灯、あるいは点滅するため、操作が容易になるとともに、誤操作が起こりにくくすることができる。   In addition, since the light emitting unit 16 provided outside the movable unit 15 is lit or blinked, the operation is facilitated and an erroneous operation is less likely to occur.

以上のように構成したので、   Since it was configured as above,

本発明は、点光源を使用する機器の操作部に広く応用が可能である。   The present invention can be widely applied to an operation unit of a device that uses a point light source.

２ 筐体
３ 加熱室
４ 前面開口部
６ 扉
９ 操作表示部
１５ 可動部
１６ 発光部
１７ ハウジング
１８ スイッチ
１９ ＬＥＤ
２１ 光拡散面
2 Housing 3 Heating chamber 4 Front opening 6 Door 9 Operation display section 15 Movable section 16 Light emitting section 17 Housing 18 Switch 19 LED
21 Light diffusion surface

Claims (4)

筐体内に設けられた加熱室と、前記加熱室の前面開口部に開閉可能に設けられた扉と、前記扉の前面に設けられた操作時に押圧する可動部と、前記可動部の外周に配置され光を透過させる発光部と、前記可動部と前記発光部とが取り付けられたハウジングと、前記可動部に対向する前記ハウジングに形成した光拡散部と、前記扉内に設けられた回路基板と、前記回路基板に取り付けられたＬＥＤとスイッチと、を備え、
前記スイッチは、前記可動部を押すことにより接点を閉じるよう配置され、前記ＬＥＤは前記可動部を前記ハウジング方向に投影した面の略中心部でかつ１か所に集められて前記回路基板に取り付けられており、
前記ＬＥＤが発光時、前記ＬＥＤからの光は、前記可動部の背面と前記光拡散部との間で反射を繰り返して広がり、前記発光部を透過して、前記可動部の前面を照らす加熱調理器。 A heating chamber provided in the housing, a door provided to be openable and closable at the front opening of the heating chamber, a movable portion provided on the front surface of the door to be pressed during operation, and disposed on the outer periphery of the movable portion A light-emitting part that transmits light, a housing in which the movable part and the light-emitting part are attached, a light diffusion part formed in the housing opposite to the movable part, and a circuit board provided in the door; An LED and a switch attached to the circuit board,
The switch is arranged to close the contact point by pushing the movable part, and the LED is collected at a substantially central part of the surface of the movable part projected in the housing direction and attached to the circuit board. And
When the LED emits light, the light from the LED is repeatedly reflected and spread between the back surface of the movable part and the light diffusion part, passes through the light emitting part, and illuminates the front surface of the movable part. vessel. 前記光拡散部は、前記可動部に向かってラッパ状に広がるように形成された請求項１に記載の加熱調理器。   The cooking device according to claim 1, wherein the light diffusion portion is formed so as to spread in a trumpet shape toward the movable portion. 前記可動部の背面と前記光拡散部の前面とは、光を反射し易い色で調色成形されている請求項１に記載の加熱調理器。   The cooking device according to claim 1, wherein the back surface of the movable portion and the front surface of the light diffusion portion are toned with a color that easily reflects light. 前記スイッチは、前記可動部を前記ハウジング方向に投影した面の略中心部から外れた位置に１つだけ配置した請求項１または２に記載の加熱調理器。
3. The cooking device according to claim 1, wherein only one switch is disposed at a position deviating from a substantially central portion of a surface of the movable portion projected in the housing direction.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6318721U (en) * 1986-07-21 1988-02-06
JP2004220969A (en) * 2003-01-16 2004-08-05 Tamagawa Seiki Co Ltd Non-self-luminous switching structure
JP2005257938A (en) * 2004-03-10 2005-09-22 Calsonic Kansei Corp Variable display structure
JP2012229845A (en) * 2011-04-26 2012-11-22 Hitachi Appliances Inc Heating cooker
JP2012233603A (en) * 2011-04-28 2012-11-29 Mitsubishi Electric Corp Operation part, and heating cooking apparatus with the same
JP2013105739A (en) * 2011-11-16 2013-05-30 ▲チョ▼錦雄 Switch opening/closing vibration presentation device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6318721U (en) * 1986-07-21 1988-02-06
JP2004220969A (en) * 2003-01-16 2004-08-05 Tamagawa Seiki Co Ltd Non-self-luminous switching structure
JP2005257938A (en) * 2004-03-10 2005-09-22 Calsonic Kansei Corp Variable display structure
JP2012229845A (en) * 2011-04-26 2012-11-22 Hitachi Appliances Inc Heating cooker
JP2012233603A (en) * 2011-04-28 2012-11-29 Mitsubishi Electric Corp Operation part, and heating cooking apparatus with the same
JP2013105739A (en) * 2011-11-16 2013-05-30 ▲チョ▼錦雄 Switch opening/closing vibration presentation device

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