JP2011075215A - Heating cooker - Google Patents

Heating cooker Download PDF

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JP2011075215A
JP2011075215A JP2009227644A JP2009227644A JP2011075215A JP 2011075215 A JP2011075215 A JP 2011075215A JP 2009227644 A JP2009227644 A JP 2009227644A JP 2009227644 A JP2009227644 A JP 2009227644A JP 2011075215 A JP2011075215 A JP 2011075215A
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top plate
light
light emitting
unit
film
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JP5405256B2 (en
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Katsuharu Matsuo
勝春 松尾
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Toshiba Corp
Toshiba Lifestyle Products and Services Corp
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Toshiba Corp
Toshiba Consumer Electronics Holdings Corp
Toshiba Home Appliances Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker applying metallic luster to a top plate without deteriorating a sense of visual unity even when a touch sensor is formed on the top plate, preventing malfunction of the sensor due to potential fluctuation of a heating means, and providing a display part with excellent visibility successfully transmitting light from a light emitting part arranged below the top plate. <P>SOLUTION: In the heating cooker 10 having an operation part 30 and the display part 32 arranged on the top plate 14, an insulating light transmission film 56 transmitting light and having metallic luster is provided in a region including the operation part 30 and the display part 32 on the lower face of the top plate 14, and a light shielding film 58 is provided in a region excluding the display part 32 on the outer face of the insulating light transmission film 56. A partial transmission part 54 transmitting light from the light emitting part 46 to only a predetermined region in the display part 32 is provided. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

本発明は、トッププレート上にタッチ入力部を備えた加熱調理器に関する。   The present invention relates to a cooking device including a touch input unit on a top plate.

一般的に、この種加熱調理器では、箱状の筐体内に加熱手段として例えば誘導加熱コイルや、電気コイルなどのラジエントヒータを設け、対向する上面側に配置されたトッププレート上の鍋などの被加熱調理容器を加熱する構成としている。   In general, in this type of cooking device, for example, an induction heating coil or a radiant heater such as an electric coil is provided as a heating means in a box-shaped housing, and a pan on a top plate disposed on the upper surface side facing the heating device. It is set as the structure which heats a to-be-heated cooking container.

トッププレートとしては、美観性や清掃性が優れていることから、ガラス、セラミックス材料等が用いられる。これらのガラス等を用いたトッププレートでは、チタン(Ti)膜などの金属膜を形成することで、内部の調理器や温度センサーなどを視覚的に隠しつつ、金属光沢などによる美観を付与する場合がある。   As the top plate, glass, a ceramic material, or the like is used because it has excellent aesthetics and cleanability. In the case of top plates using these glasses, etc., by forming a metal film such as a titanium (Ti) film, visually concealing the internal cooker, temperature sensor, etc., and giving an aesthetic appearance such as metallic luster There is.

特開2008−111626号公報JP 2008-111626 A

しかしながら、上記のようにチタン膜などの金属膜は導電性が高いため、トッププレートにタッチセンサを形成する場合、該タッチセンサに対応する領域に金属膜に代えて絶縁膜を設ける必要がある。そのため、トッププレート上の絶縁膜を形成した領域は他の部分と色が異なり、視覚的な一体感が無く、美観が損なわれるという問題がある。   However, since a metal film such as a titanium film has high conductivity as described above, when a touch sensor is formed on the top plate, it is necessary to provide an insulating film instead of the metal film in a region corresponding to the touch sensor. Therefore, there is a problem that the region where the insulating film is formed on the top plate is different in color from other portions, there is no visual sense of unity, and the aesthetic appearance is impaired.

しかも、タッチセンサの近傍に導電性の高い金属膜が配設されていると、誘導加熱コイルやラジエントヒータの電位変動に起因するノイズが金属膜を介してタッチセンサに伝わり、センサが誤作動するおそれがあり問題である。   In addition, if a highly conductive metal film is disposed near the touch sensor, noise due to potential fluctuations of the induction heating coil and the radiant heater is transmitted to the touch sensor through the metal film, causing the sensor to malfunction. There is a risk.

さらに、上記のようなチタン膜によってトッププレートに金属光沢を付与する場合、トッププレートの下方に配置されたLED等の発光部からの光が透過しにくくなるため、発光部から光を照射して、加熱強度といった加熱手段の制御状況などをトッププレートに表示させる表示部が暗くなり視認性に劣る問題がある。   Furthermore, when a metallic luster is imparted to the top plate by the titanium film as described above, light from a light emitting part such as an LED disposed below the top plate is not easily transmitted. Further, there is a problem that the display unit for displaying the control status of the heating means such as the heating intensity on the top plate becomes dark and the visibility is poor.

本発明は、上記問題を考慮してなされたものであり、トッププレートにタッチセンサを形成しても、視覚的な一体感を損なうことなくトッププレートに金属光沢を付与することができるとともに、加熱手段の電位変動に起因して該センサが誤作動することなく、しかも、トッププレートの下方に配置された発光部からの光を良好に透過させ視認性に優れた表示部を設け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。   The present invention has been made in consideration of the above problems. Even when a touch sensor is formed on the top plate, the top plate can be provided with a metallic luster without impairing the visual sense of unity, and heating can be performed. Heating that does not cause malfunction of the sensor due to potential fluctuations of the means, and that can provide a display unit that transmits light from the light emitting unit disposed below the top plate and has excellent visibility. The purpose is to provide a cooker.

本発明に係る加熱調理器は、加熱手段と、前記加熱手段の上方に設けられ被加熱物が載置されるトッププレートと、前記加熱手段を制御する制御部と、前記トッププレートに設けられた操作部と、前記トッププレートに設けられた表示部と、前記表示部の下方に設けられ光を出射する発光部と、前記トッププレートの下面における前記操作部及び前記表示部を含む領域に設けられ、光を透過し、かつ、金属光沢を有する絶縁性の光透過膜と、前記光透過膜の外面における前記表示部を除く領域に設けられた遮光膜と、前記発光部からの光を所定領域のみ前記表示部へ透過させる部分透過部とを備えたことを特徴とする。   A heating cooker according to the present invention is provided in a heating means, a top plate provided above the heating means on which an object to be heated is placed, a control unit for controlling the heating means, and the top plate. Provided in a region including an operation unit, a display unit provided on the top plate, a light emitting unit provided below the display unit for emitting light, and the operation unit and the display unit on a lower surface of the top plate. An insulating light-transmitting film that transmits light and has a metallic luster; a light-shielding film provided in a region excluding the display portion on the outer surface of the light-transmitting film; and a predetermined region for transmitting light from the light-emitting portion And a partial transmission part that transmits light only to the display part.

本発明では、上記構成により、トッププレートにタッチセンサを形成しても、視覚的な一体感を損なうことなくトッププレートに金属光沢を付与することができるとともに、加熱手段の電位変動に起因して該センサが誤作動することなく、しかも、トッププレートの下方に配置された発光部から出射された光を良好に透過させ視認性に優れた表示部を設けることができる。   In the present invention, with the above configuration, even when a touch sensor is formed on the top plate, a metallic luster can be imparted to the top plate without impairing the visual sense of unity, and due to potential fluctuations in the heating means. It is possible to provide a display unit that is excellent in visibility by allowing the light emitted from the light emitting unit disposed below the top plate to pass through without causing the sensor to malfunction.

本発明の一実施形態に係る加熱調理器をキッチンに組み込んだ状態を示す斜視図である。It is a perspective view showing the state where the cooking-by-heating machine concerning one embodiment of the present invention was built in the kitchen. 本発明の一実施形態に係る加熱調理器を示す平面図である。It is a top view which shows the heating cooker which concerns on one Embodiment of this invention. 図1のA−A断面図である。It is AA sectional drawing of FIG. 図1のB−B断面図である。It is BB sectional drawing of FIG. 本発明の変更例に係る加熱調理器の断面図である。It is sectional drawing of the heating cooker which concerns on the example of a change of this invention.

以下、本発明の一実施形態について、図面を参照して説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

本実施形態の加熱調理器10は、例えば、図1に示すようなシステムキッチンに組み込まれるものであって、システムキッチンの天板11に対して上方から嵌め込まれる上ユニット10aと下部に位置し天板11に対して前方から嵌め込まれる下ユニット10bとを備える。   The heating cooker 10 of this embodiment is incorporated in a system kitchen as shown in FIG. 1, for example, and is located at the lower part of the upper unit 10 a that is fitted into the top plate 11 of the system kitchen from above. A lower unit 10b that is fitted to the plate 11 from the front.

上ユニット10aは、図2及び図3に示すように、3個の加熱手段を収容する薄形矩形箱状の筐体12と、この筐体12の上面開口部を塞ぐように設けられたトッププレート14とを備える。   As shown in FIGS. 2 and 3, the upper unit 10a includes a thin rectangular box-shaped housing 12 that accommodates three heating means, and a top provided so as to close the upper surface opening of the housing 12. Plate 14.

筐体12の内部には、手前側に加熱手段としての2つの誘導加熱コイル16,18が配設され、中央奥側に別の加熱手段としてラジエントヒータからなるヒータ20が配設されている。   Inside the housing 12, two induction heating coils 16 and 18 as heating means are arranged on the front side, and a heater 20 made of a radiant heater is arranged as another heating means on the back side of the center.

また、誘導加熱コイル16,18の下方の空間には、誘導加熱コイル16,18に高周波電流を供給するインバータやマイクロコンピュータを主とした制御回路基板等の駆動手段(不図示)が内蔵されており、該駆動手段によって誘導加熱コイル16,18やヒータ20が駆動制御される。   In addition, in the space below the induction heating coils 16 and 18, drive means (not shown) such as a control circuit board mainly including an inverter and a microcomputer for supplying a high frequency current to the induction heating coils 16 and 18 are incorporated. The induction heating coils 16 and 18 and the heater 20 are driven and controlled by the driving means.

トッププレート14の上面には、一例として、円形枠線で示す3箇所に鍋などの被加熱物を加熱するのに好適な載置箇所を示す加熱部22,24,26が印刷されている。また、加熱部22,24の前部には、操作部30及び表示部32が前後2列に設けられ、さらに、表示部32の一方側(本実施形態では右側)に赤外線を外部へ出射する赤外線ポート33が設けられている。   On the top surface of the top plate 14, as an example, heating portions 22, 24, and 26 indicating printing places suitable for heating an object to be heated such as a pan are printed at three positions indicated by a circular frame. In addition, the operation unit 30 and the display unit 32 are provided in front and rear rows of the heating units 22 and 24, and infrared rays are emitted to the outside on one side (right side in the present embodiment) of the display unit 32. An infrared port 33 is provided.

操作部30は、印刷層等により形成されたタッチ入力式(静電容量式)のタッチ操作部であり、本実施形態では、例えば、誘導加熱コイル16,18及びヒータ20の電源オン・オフを切り換え設定する電源用操作部30aや、誘導加熱コイル16,18及びヒータ20の加熱強度を設定する加熱強度設定用操作部30bや、通常加熱や天ぷらなどの所定調理に適した加熱モードを設定する加熱モード設定用操作部30c等が、各加熱部22,24,26に対応してそれぞれ設けられている。   The operation unit 30 is a touch input type (capacitance type) touch operation unit formed by a printing layer or the like. In this embodiment, for example, the induction heating coils 16 and 18 and the heater 20 are turned on / off. A power operation unit 30a for switching setting, a heating intensity setting operation unit 30b for setting the heating intensity of the induction heating coils 16, 18 and the heater 20, and a heating mode suitable for predetermined cooking such as normal heating and tempura are set. A heating mode setting operation unit 30c and the like are provided corresponding to each heating unit 22, 24, and 26, respectively.

ユーザによる操作部30のタッチ入力は、トッププレート14の下面に配設された回路基板34によって検出される。   The touch input of the operation unit 30 by the user is detected by the circuit board 34 disposed on the lower surface of the top plate 14.

回路基板34は、電極基板36と制御回路基板38とを備える。電極基板36はトッププレート14の前端部の下面に枠状の下部枠40により保持された形態に取着されている。下部枠40はトッププレート14に例えば接着などにより固着されている。この電極基板36の上面には操作部30に対向するように検知電極42が導体パターンにより形成され、検知電極42はスルーホールおよび接続導体パターンを介して基板対基板型のコネクタ44に導通されている。このコネクタ44には、ほぼ垂直状態に取り付けられた制御回路基板38が接続されている。   The circuit board 34 includes an electrode board 36 and a control circuit board 38. The electrode substrate 36 is attached to the lower surface of the front end portion of the top plate 14 so as to be held by a frame-like lower frame 40. The lower frame 40 is fixed to the top plate 14 by, for example, adhesion. A detection electrode 42 is formed by a conductor pattern on the upper surface of the electrode substrate 36 so as to face the operation unit 30, and the detection electrode 42 is electrically connected to a board-to-board type connector 44 through a through hole and a connection conductor pattern. Yes. The connector 44 is connected to a control circuit board 38 attached in a substantially vertical state.

制御回路基板38は、接触検知回路を備え、タッチ入力部30にユーザの手指が触れることにより人体と検知電極42とが静電結合し、これにより生じる静電容量変化を検知してユーザによるタッチ入力を検知する。   The control circuit board 38 includes a contact detection circuit, and when the user's finger touches the touch input unit 30, the human body and the detection electrode 42 are electrostatically coupled, and a change in capacitance caused thereby is detected to make a touch by the user. Detect input.

表示部32は、上記した操作部30の操作結果や誘導加熱コイル16,18及びヒータ20の出力状態を表示するものであり、操作部30と同様、各加熱部22,24,26に対応して複数設けられている。表示部32は、発光部46から出射された光がトッププレート14の下方より照射されることで、文字や図形などの所定の標章が表示される。   The display unit 32 displays the operation results of the operation unit 30 and the output states of the induction heating coils 16 and 18 and the heater 20, and corresponds to the heating units 22, 24 and 26, as with the operation unit 30. Are provided. The display unit 32 displays a predetermined mark such as a character or a figure by irradiating the light emitted from the light emitting unit 46 from below the top plate 14.

発光部46は、表示部32を照明する発光素子52と、発光素子52を収納するホルダ50とを備えてなり、下ユニット10bの前端部近傍に配設された表示基板48に複数個配設されている。発光素子52は、例えば、発光波長が650〜700nmの赤色の発光ダイオードが表示基板48に実装されている。ホルダ50は、上方に開口する筒状をなしており、内部に収納された発光素子52を保護するとともに、発光素子52から出射された光を上方へ導光する。   The light emitting section 46 includes a light emitting element 52 that illuminates the display section 32 and a holder 50 that houses the light emitting element 52, and a plurality of light emitting sections 46 are disposed on a display substrate 48 disposed near the front end of the lower unit 10b. Has been. In the light emitting element 52, for example, a red light emitting diode having an emission wavelength of 650 to 700 nm is mounted on the display substrate 48. The holder 50 has a cylindrical shape that opens upward, protects the light emitting element 52 accommodated therein, and guides light emitted from the light emitting element 52 upward.

ホルダ50の上面開口には、発光素子52から出射された光を所定領域のみ上方へ透過させる部分透過部54が配設されている。部分透過部54は、透明な板体に文字や図形などの所定の標章が抜き文字で印刷されており、発光素子52から出射された光が部分透過部54に設けられた抜き文字部分54aのみを透過して、トッププレート14における発光部46の上方位置に設けられた表示部32に、抜き文字で印刷された所定の標章を表示させる。   A partial transmission portion 54 that transmits light emitted from the light emitting element 52 upward only in a predetermined region is disposed in the upper surface opening of the holder 50. The partial transmission portion 54 has a predetermined mark such as a character or a figure printed on a transparent plate body with a blank character, and a light-letter portion 54 a provided on the partial transmission portion 54 with light emitted from the light emitting element 52. A predetermined mark printed with a blank character is displayed on the display unit 32 provided above the light emitting unit 46 in the top plate 14.

赤外線ポート33は、赤外線発光部60からの赤外線をトッププレート14の上方へ出射し、例えば、加熱調理器10の上方に設けられたレンジフードに配設された赤外線受光素子との間で赤外線通信を行う。   The infrared port 33 emits infrared rays from the infrared light emitting unit 60 to the upper side of the top plate 14, for example, infrared communication with an infrared light receiving element disposed in a range hood provided above the cooking device 10. I do.

赤外線発光部60は、図4に示すように、トッププレート14における赤外線ポート33に対応する位置の下方に配設されており、赤外線を発光する赤外線発光素子62と、赤外線発光素子62を収納するホルダ64とを備える。赤外線発光素子62は、例えば、発光波長が950nmの発光ダイオードが、発光素子52を実装した表示基板48に実装されている。ホルダ64は、上方に開口する筒状をなしており、内部に収納された赤外線発光素子62を保護するとともに、赤外線発光素子62から出射された光を上方へ導光する。   As shown in FIG. 4, the infrared light emitting unit 60 is disposed below the position corresponding to the infrared port 33 in the top plate 14, and houses the infrared light emitting element 62 that emits infrared light and the infrared light emitting element 62. Holder 64. In the infrared light emitting element 62, for example, a light emitting diode having an emission wavelength of 950 nm is mounted on the display substrate 48 on which the light emitting element 52 is mounted. The holder 64 has a cylindrical shape that opens upward, protects the infrared light emitting element 62 accommodated therein, and guides light emitted from the infrared light emitting element 62 upward.

また、トッププレート14は、例えば、耐熱強化ガラス(結晶化ガラス)からなる矩形板状に一体形成されており、その下面に光を透過し、かつ、金属光沢を有する絶縁性の光透過膜56、例えば、シリコン(Si)またはゲルマニウム(Ge)をスパッタ法あるいは真空蒸着法により厚さ100〜200nmに成膜された光透過膜56が形成されている。光透過膜56は、トッププレート14のうち少なくとも加熱部22,24,26、操作部30、表示部32、及び赤外線ポート33を含む略全体に形成されている。   In addition, the top plate 14 is integrally formed in a rectangular plate shape made of, for example, heat-resistant tempered glass (crystallized glass), and transmits light to the lower surface thereof and has an insulating light-transmitting film 56 having a metallic luster. For example, a light transmission film 56 is formed in which silicon (Si) or germanium (Ge) is formed to a thickness of 100 to 200 nm by sputtering or vacuum deposition. The light transmission film 56 is formed on substantially the entire top plate 14 including at least the heating units 22, 24, 26, the operation unit 30, the display unit 32, and the infrared port 33.

光透過膜56の外面(下面)には、表示部32及び赤外線ポート33に対応する部分、すなわち、トッププレート14において発光部46及び赤外線発光部60と対向する箇所を除く光透過膜56の略全体に遮光膜58が形成されている。つまり、遮光膜58は、発光部46と対向する位置に貫通孔58aが設けられ、赤外線発光部60と対向する位置に赤外線透過部としての貫通孔58bが設けられている。   On the outer surface (lower surface) of the light transmission film 56, the light transmission film 56 except for portions corresponding to the display unit 32 and the infrared port 33, i.e., portions facing the light emitting unit 46 and the infrared light emitting unit 60 in the top plate 14. A light shielding film 58 is formed throughout. That is, the light shielding film 58 is provided with a through hole 58 a at a position facing the light emitting part 46 and a through hole 58 b as an infrared transmitting part at a position facing the infrared light emitting part 60.

下ユニット10bは、図1に示すように、キャビネット内の左部に設けられたロースタ70と、その右部に設けられた操作パネル72を備えて構成されている。ロースタ70は図示しないシーズヒータを熱源とする。操作パネル72には、電源スイッチ74や、ロースタ70のシーズヒータをオン・オフしたり出力を調整したりするための操作スイッチ76が設けられている。   As shown in FIG. 1, the lower unit 10 b includes a roaster 70 provided at the left part in the cabinet and an operation panel 72 provided at the right part thereof. The roaster 70 uses a sheathed heater (not shown) as a heat source. The operation panel 72 is provided with a power switch 74 and operation switches 76 for turning on / off the sheathed heater of the roaster 70 and adjusting the output.

上記のような加熱調理器10において、電源スイッチ74をON操作し、トッププレート14に設けられた電源用操作部30aをタッチ操作することにより、各加熱手段はオン・オフされ、加熱強度設定用操作部30bをタッチ操作することにより各加熱手段の出力が調整される。例えば、誘導加熱コイル16を用いて調理する場合には、加熱部22に鍋を置き、加熱部22に対応する電源用操作部30aをタッチ操作する。これにより、誘導加熱コイル16が通電され、加熱部22に対応する表示部32は、誘導加熱コイル16の出力状態に応じた発光部46の発光素子52が点灯する。   In the heating cooker 10 as described above, when the power switch 74 is turned on and the power operation unit 30a provided on the top plate 14 is touch-operated, each heating unit is turned on / off, and the heating intensity setting is performed. The output of each heating unit is adjusted by touching the operation unit 30b. For example, when cooking using the induction heating coil 16, a pan is placed on the heating unit 22, and the power operation unit 30 a corresponding to the heating unit 22 is touch-operated. As a result, the induction heating coil 16 is energized, and the light emitting element 52 of the light emitting unit 46 corresponding to the output state of the induction heating coil 16 lights up on the display unit 32 corresponding to the heating unit 22.

発光素子52が放射する光は、部分透過部54の抜き文字部分54aを透過し、更に光透過膜56及びトッププレート14を透過して、部分透過部54において抜き文字で印刷された標章がトッププレート14に設けられた表示部32に表示され、使用者は誘導加熱コイル16の出力状態を確認できる。   The light emitted from the light emitting element 52 is transmitted through the extracted character portion 54 a of the partial transmission portion 54, further transmitted through the light transmission film 56 and the top plate 14, and a mark printed with the extracted characters in the partial transmission portion 54. It is displayed on the display part 32 provided in the top plate 14, and the user can confirm the output state of the induction heating coil 16.

以上のように本実施形態では、トッププレート14の下面に設けた光透過膜56が、光を透過し、かつ、金属光沢を有する絶縁性の薄膜であるため、加熱部22,24,26や表示部32だけでなく、タッチ入力式の操作部30に対応する領域にも光透過膜56を設けることができる。そのため、操作部30にも加熱部22,24,26等と同一の金属光沢を付与することができ、トッププレート14の略全体にわたる視覚的な一体感を損なうことがない。   As described above, in the present embodiment, since the light transmission film 56 provided on the lower surface of the top plate 14 is an insulating thin film that transmits light and has a metallic luster, the heating units 22, 24, 26, The light transmission film 56 can be provided not only on the display unit 32 but also in a region corresponding to the touch input type operation unit 30. Therefore, the same metallic luster as that of the heating units 22, 24, and 26 can be imparted to the operation unit 30, and the visual sense of unity over substantially the entire top plate 14 is not impaired.

また、光透過膜56の外面に光を遮断する遮光膜58が設けられているため、トッププレート14に外観上の金属光沢を付与しつつ、筐体12内部に収納された加熱手段16,18,20等の内部構造体を視覚的に隠すことができる。   Further, since the light shielding film 58 for blocking light is provided on the outer surface of the light transmission film 56, the heating means 16 and 18 housed in the housing 12 while giving the top plate 14 a metallic luster on the appearance. , 20 etc. can be visually hidden.

しかも、光透過膜56が、シリコンまたはゲルマニウムからなり、シリコンやゲルマニウムが、チタンなどの金属に比べて導電性が低い半金属であるため、タッチ入力式の操作部30に対応する位置に絶縁膜を設ける必要がないとともに、誘導加熱コイル16,18やヒータ20の電位変動に起因するノイズが、タッチ入力式の操作部30に伝わることがなくなり、操作部30の誤作動のおそれもない。   In addition, since the light transmission film 56 is made of silicon or germanium, and silicon or germanium is a semimetal having a lower conductivity than a metal such as titanium, an insulating film is provided at a position corresponding to the touch input type operation unit 30. Is not necessary, and noise caused by potential fluctuations of the induction heating coils 16 and 18 and the heater 20 is not transmitted to the touch input type operation unit 30, and there is no possibility of malfunction of the operation unit 30.

また、チタンに比べてシリコンやゲルマニウムは光を透過性しやすいので、トッププレート14に設けられた表示部32を明るくすることができ、視認性を向上させることができる。特に、シリコンやゲルマニウムは、波長650nm以上の赤色光及び赤外光の透過率が他の波長帯の光に比べ高い。そのため、表示部32を照明する発光素子52として発光波長が650〜700nmの赤色の発光ダイオードを使用することで、効率的に表示部32の明度を向上させることができ、より一層、表示部32の視認性を向上させることができるとともに、赤外線ポート33より赤外線発光部60からの赤外線を効率的に出射させることができる。   In addition, since silicon and germanium are more permeable to light than titanium, the display portion 32 provided on the top plate 14 can be brightened and visibility can be improved. In particular, silicon and germanium have higher transmittances of red light and infrared light having a wavelength of 650 nm or more than light in other wavelength bands. Therefore, by using a red light emitting diode having an emission wavelength of 650 to 700 nm as the light emitting element 52 that illuminates the display unit 32, the brightness of the display unit 32 can be improved efficiently, and the display unit 32 is further improved. In addition, the infrared rays from the infrared light emitting unit 60 can be efficiently emitted from the infrared port 33.

さらに、本実施形態の加熱調理器10では、透明な板体に所定の標章が抜き文字で印刷された部分透過部54が、発光素子52を収納するホルダ50の上面開口に配設され、トッププレート14と発光部46との間に配設されている。そのため、発光素子52の点灯時には、発光素子52から出射された光が部分透過部54に設けられた抜き文字部分54aのみを透過して、抜き文字で印刷された所定の標章を表示部32に表示させることができる。また、発光素子52の消灯時には、部分透過部54に光が透過する抜き文字部分54aが存在するものの、抜き文字部分54aが僅かな領域であるので、表示部32の下方に配設された発光部46が外部からほとんど見えることがなく、美観を損なうこともない。つまり、本実施形態のようにチタンなどに比べて光透過性の高いシリコンやゲルマニウム等から光透過膜56を構成し表示部32の明度を高めながら、部分透過部54により発光部46を視覚的に隠すことができ、表示部32の視認性とトッププレート14の美観を高めることができる。   Furthermore, in the heating cooker 10 of this embodiment, the partial transmission part 54 by which the predetermined mark was printed on the transparent plate body with the letter cut out is arrange | positioned in the upper surface opening of the holder 50 which accommodates the light emitting element 52, It is disposed between the top plate 14 and the light emitting unit 46. Therefore, when the light emitting element 52 is turned on, the light emitted from the light emitting element 52 is transmitted only through the extracted character portion 54a provided in the partial transmission portion 54, and a predetermined mark printed with the extracted characters is displayed on the display unit 32. Can be displayed. Further, when the light emitting element 52 is turned off, the extracted character portion 54a through which light is transmitted is present in the partial transmission portion 54, but the extracted character portion 54a is a small area, and thus the light emission disposed below the display portion 32. The portion 46 is hardly visible from the outside, and the aesthetic appearance is not impaired. That is, as in the present embodiment, the light-transmitting film 56 is made of silicon, germanium, or the like, which has higher light transmission than titanium, and the light-emitting portion 46 is visually displayed by the partial transmission portion 54 while increasing the brightness of the display portion 32. The visibility of the display unit 32 and the aesthetic appearance of the top plate 14 can be enhanced.

なお、上記した本実施形態では、部分透過部54をホルダ50の上面開口に配設したが、本発明はこれに限定されず、例えば、図5に示すように、トッププレート14側に部分透過部54を設けてもよい。このような場合、遮光膜58の形成工程において部分透過部54の抜き文字54aを同時に形成することができ、製造工数及び部品点数を削減することができる。   In the above-described embodiment, the partial transmission portion 54 is disposed in the upper surface opening of the holder 50. However, the present invention is not limited to this, and for example, as shown in FIG. A portion 54 may be provided. In such a case, in the step of forming the light shielding film 58, the extracted characters 54a of the partial transmission part 54 can be formed at the same time, and the number of manufacturing steps and the number of parts can be reduced.

10…加熱調理器 14…トッププレート 16…誘導加熱コイル
18…誘導加熱コイル 20…ヒータ 30…操作部
32…表示部 33…赤外線ポート 34…回路基板
46…発光部 48…表示基板 50…ホルダ
52…発光素子 54…部分透過部 56…光透過膜
58…遮光膜 58a…貫通孔 58b…貫通孔(赤外線透過部)
60…赤外線発光部 62…赤外線発光素子 64…ホルダ
DESCRIPTION OF SYMBOLS 10 ... Cooking device 14 ... Top plate 16 ... Induction heating coil 18 ... Induction heating coil 20 ... Heater 30 ... Operation part 32 ... Display part 33 ... Infrared port 34 ... Circuit board 46 ... Light emission part 48 ... Display board 50 ... Holder 52 ... light emitting element 54 ... partial transmission part 56 ... light transmission film 58 ... light shielding film 58a ... through hole 58b ... through hole (infrared transmission part)
60 ... Infrared light emitting part 62 ... Infrared light emitting element 64 ... Holder

Claims (5)

加熱手段と、
前記加熱手段の上方に設けられ被加熱物が載置されるトッププレートと、
前記加熱手段を制御する制御部と、
前記トッププレートに設けられた操作部と、
前記トッププレートに設けられた表示部と、
前記表示部の下方に設けられ光を出射する発光部と、
前記トッププレートの下面における前記操作部及び前記表示部を含む領域に設けられ、光を透過し、かつ、金属光沢を有する絶縁性の光透過膜と、
前記光透過膜の外面における前記表示部を除く領域に設けられた遮光膜と、
前記発光部からの光を所定領域のみ前記表示部へ透過させる部分透過部と
を備えたことを特徴とする加熱調理器。
Heating means;
A top plate provided above the heating means and on which an object to be heated is placed;
A control unit for controlling the heating means;
An operation unit provided on the top plate;
A display unit provided on the top plate;
A light emitting unit provided below the display unit for emitting light;
An insulating light-transmitting film that is provided in a region including the operation unit and the display unit on a lower surface of the top plate, transmits light, and has a metallic luster;
A light-shielding film provided in a region excluding the display portion on the outer surface of the light-transmitting film;
A heating cooker, comprising: a partial transmission unit that transmits light from the light emitting unit only to a predetermined region to the display unit.
前記部分透過部が、前記トッププレートと前記発光部との間に配設されていることを特徴とする請求項1に記載の加熱調理器。   The cooking device according to claim 1, wherein the partial transmission part is disposed between the top plate and the light emitting part. 前記光透過膜がシリコン膜であることを特徴とする請求項1又は2に記載の加熱調理器。   The cooking device according to claim 1 or 2, wherein the light transmission film is a silicon film. 前記発光部が赤色の発光素子を備えることを特徴とする請求項3に記載の加熱調理器。   The cooking device according to claim 3, wherein the light emitting unit includes a red light emitting element. 前記トッププレートの下方に配設され赤外線を発光する赤外線発光部と、前記トッププレートにおける前記赤外線発光部の上方位置に設けられた赤外線透過部とを備え、
前記遮光膜が前記赤外線透過部を避けて前記トッププレートの下面に形成されていることを特徴とする請求項1〜4のいずれか1項に記載の加熱調理器。
An infrared light emitting unit disposed below the top plate and emitting infrared light; and an infrared transmission unit provided at a position above the infrared light emitting unit in the top plate;
The cooking device according to any one of claims 1 to 4, wherein the light shielding film is formed on a lower surface of the top plate so as to avoid the infrared ray transmitting portion.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003297540A (en) * 2002-04-02 2003-10-17 Matsushita Electric Ind Co Ltd Heating cooker
JP2008091346A (en) * 2007-11-19 2008-04-17 Toshiba Corp Induction heating cooker

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003297540A (en) * 2002-04-02 2003-10-17 Matsushita Electric Ind Co Ltd Heating cooker
JP2008091346A (en) * 2007-11-19 2008-04-17 Toshiba Corp Induction heating cooker

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