JP5747162B2 - High frequency cooker - Google Patents

High frequency cooker Download PDF

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Publication number
JP5747162B2
JP5747162B2 JP2011162728A JP2011162728A JP5747162B2 JP 5747162 B2 JP5747162 B2 JP 5747162B2 JP 2011162728 A JP2011162728 A JP 2011162728A JP 2011162728 A JP2011162728 A JP 2011162728A JP 5747162 B2 JP5747162 B2 JP 5747162B2
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Prior art keywords
heating chamber
led element
illumination
high
lighting
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JP2013024531A (en
Inventor
早川 雄二
雄二 早川
稲田 育弘
育弘 稲田
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パナソニックIpマネジメント株式会社
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24COTHER DOMESTIC STOVES OR RANGES; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/008Illumination for oven cavities
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B6/00Heating by electric, magnetic, or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/6444Aspects relating to lighting devices in the microwave cavity

Description

  The present invention relates to a high-frequency cooker using LED elements for interior lighting of a heating chamber.

  Conventionally, in a high-frequency cooker, illumination in a heating chamber is provided in order to observe the state of food intended for heating. In addition, it is necessary for the user to visually recognize the food as being deliciously heated.

  As an illumination in the heating chamber of such a high-frequency cooker, there is one in which an incandescent bulb is arranged outside the wall surface of the heating chamber that blocks radio waves, and a plurality of illumination holes (punching) are formed on the wall surface. In addition, there is a lighting device that installs a plurality of LED elements to illuminate food (for example, see Patent Document 1).

JP-A-5-164331

  The electric wave blocking characteristics of the heating chamber wall surface where the illumination holes are formed depend on the wall thickness, the hole diameter of the illumination holes, and the pitch between the holes, and the illuminance of the heating chamber also depends on these.

  However, in the conventional configuration, it is necessary to reduce the hole diameter in order to improve the radio wave blocking characteristics, and it is necessary to increase the number of holes in order to increase the illuminance. Thus, there is a contradictory relationship between the radio wave blocking characteristics and the illuminance in the heating chamber.

  Also, regarding the pitch between holes, there is a contradictory relationship between the blocking characteristics of radio waves and the illuminance in the heating chamber, and in order to improve the blocking characteristics of radio waves, it is necessary to increase the pitch between holes and reduce the number of holes. is there. If this is done, the light transmittance of the lighting device will be low, the illuminance of the heating chamber will decrease, shadows between the hole pitches will be created, and food visibility will be poor, so the output of the lighting device must be increased. It had the problem of having to do.

  In addition, when LED elements are used in the lighting device, the LED elements have a small light source size and strong directivity of light, so that they are easily affected by the hole diameter and hole pitch of the illumination holes, and to maintain illuminance. Had a problem that the number of LED elements had to be increased.

  In order to solve the above-described conventional problems, the high-frequency cooker according to the present invention uses an LED element for interior lighting of the heating chamber, and is an illumination for irradiating the heating chamber with the light of the LED element provided on the wall surface of the heating chamber. The hole shape is a quadrilateral.

  Thereby, the light from the LED element passes through the quadrangular hole and is irradiated into the warehouse. At this time, the LED element close to the wall surface has a small light source size and strong light directivity. Therefore, when the LED element passes through the quadrilateral illumination hole, the light transmittance is not lowered. The

In addition, the quadrilateral illumination hole has a high brightness for the LED element by making the length of one side at the back of the heating chamber parallel to the opening surface of the front surface of the heating chamber longer than one side before the heating chamber. When used, the light in the front can be reduced, the light in the interior of the cabinet can be increased, and strong light from the LED elements does not enter the user's eyes, and the entire interior is brightened with a small number of LED elements. It can be illuminated.

  According to the high-frequency cooker of the present invention, the shape of the illumination hole is a quadrilateral, so that the illumination in the heating chamber is enhanced with the small number of LED elements while the electromagnetic wave shielding property is enhanced. It is possible to irradiate every corner.

(A) Perspective view of the high frequency cooking device in Embodiment 1 of the present invention (b) A perspective view of part A of the high frequency cooking device in Embodiment 1 of the present invention (a) The perspective view which shows the structure of the high frequency cooker in Embodiment 1 of this invention. Main part structure figure of high frequency cooking device in Embodiment 2 of this invention Detailed view of a main part of a high-frequency cooker according to Embodiment 3 of the present invention The perspective view which shows the illumination structure of the conventional high frequency cooking appliance

  1st invention is a high frequency cooking appliance which heat-processes the said to-be-heated material by supplying a high frequency into the heating chamber which accommodates to-be-heated material, uses an LED element for the interior lighting in the said heating chamber, The said LED The element is close to the wall surface of the heating chamber and irradiates light into the heating chamber. Therefore, the element has an illumination hole provided on the wall surface of the heating chamber. The illumination hole has a quadrilateral shape, and the illumination of the quadrilateral shape. The hole for use is one in which the length of one side at the back of the heating chamber parallel to the opening surface for freely putting in and out the object to be heated to and from the front of the heating chamber is longer than the one side before the heating chamber.

  Thereby, the light from the LED element passes through the quadrangular hole and is irradiated into the warehouse. At this time, the LED element close to the wall surface has a small light source size and strong light directivity. Therefore, when the LED element passes through the quadrilateral illumination hole, the light transmittance is not lowered. The In addition, the quadrilateral illumination hole has a high brightness for the LED element by making the length of one side at the back of the heating chamber parallel to the opening surface of the front surface of the heating chamber longer than one side before the heating chamber. When used, the light in the front can be reduced, the light in the interior of the cabinet can be increased, and strong light from the LED elements does not enter the user's eyes, and the entire interior is brightened with a small number of LED elements. It can be illuminated.

  The second invention is characterized in that the LED element is composed of a plurality of elements and has a lighting pattern such as simultaneous lighting and one-side lighting by a combination of different color temperatures.

  Thus, by changing the lighting pattern according to the food to be heated and changing the color of light, the delicate color of the food can be expressed, or by lighting on one side, power consumption can be reduced and energy can be saved.

  According to a third aspect of the present invention, by providing a transparent diffusion plate between the illumination hole on the wall surface of the heating chamber and the LED element, the light emitted from the LED element is diffused by the transparent diffusion plate and is stored in the corner of the heating chamber. Can be irradiated.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
FIG. 1A is a perspective view of the high-frequency cooker according to the first embodiment of the present invention, and FIG. 1B is a detailed view of part A in the perspective view of the high-frequency cooker according to the first embodiment of the present invention. FIG. 2 is a perspective view showing the structure of the high-frequency cooker according to the first embodiment of the present invention.

  In FIG. 1 (a), the high-frequency cooking device main body according to the first embodiment of the present invention includes a heating chamber 2 having a heating chamber opening 3 for taking in and out an object to be heated, and a wall surface of the heating chamber 2. As shown in FIG. 1B, an illumination hole 1 is provided in the A part.

  In FIG. 2, on the wall surface of the heating chamber, the LED substrate 7 of the illumination means is provided outside the wall surface, the air guide 5 for guiding the cooling air into the chamber of the heating chamber 2, and the LED substrate 7 is fixed to the air guide 5. A substrate holder 9 for holding is provided.

  About the high frequency cooking appliance comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the light of the LED element (not shown) arranged on the surface of the LED substrate 7 provided outside the wall surface of the heating chamber 2 passes through the illumination hole 1 having a quadrilateral shape and irradiates the interior of the cabinet. Is done. At this time, since the LED element close to the wall surface has a small light source size of 3 mm × 3 mm or 5 mm × 5 mm and strong directivity of light, the quadrangular illumination hole 1 is, for example, 5 mm × Even a dimension such as 5 mm which does not affect the radio wave blocking characteristics does not hinder light passing therethrough, and the transmittance does not decrease.

  The quadrilateral illumination hole 1 has a length of one side in the back of the heating chamber parallel to the heating chamber opening 3 on the front surface of the heating chamber that is longer than one side in front of the heating chamber. By using 7mm for the side and 5mm for the one side in front of the heating chamber, when using a high-luminance LED element, it is possible to reduce the light forward and increase the light in the interior of the LED element. It is possible to brightly illuminate the entire interior with a small number of LED elements without the strong light coming from the user entering the eyes.

(Embodiment 2)
FIG. 3 is a main part structure diagram of the high-frequency cooking device according to the second embodiment of the present invention. Note that the description of the same or equivalent parts as those in the first embodiment is omitted or simplified.

  In FIG. 3, the 1st illumination hole 1a and the 2nd illumination hole 1b which the light of an LED element passes are provided in the heating chamber wall surface. A first LED element 7 a and a second LED element 7 b are arranged on the surface of the LED substrate 7. These LED elements are composed of combinations of different color temperatures, and can control lighting patterns such as simultaneous lighting and single-side lighting.

  In the high-frequency cooker configured as described above, for example, when the first LED 7a has a color temperature of 3000K and the second LED 7b has a color temperature of 5000K, foods such as bright red and green have high color rendering properties. If one LED 7a is lit alone, or the white of the tableware is conspicuous, or if the interior is to be brightly illuminated white when cleaning, the second LED 7b having a high color temperature is lit alone. Moreover, it is also possible to satisfy the above two conditions by simultaneously lighting the first LED 7a and the second LED 7b.

(Embodiment 3)
FIG. 4 is a detail view of a main part of the high-frequency cooking device according to the third embodiment of the present invention.
In FIG. 4, a transparent diffusion plate 8 is provided between the illumination hole 1 on the wall surface of the heating chamber and the LED substrate 7.

In the high-frequency cooker configured as described above, the light emitted from the LED elements arranged on the LED substrate 7 has a strong directivity, but is diffused by the transparent diffusion plate 8 and reaches every corner in the heating chamber. Can be irradiated.

  As described above, the high-frequency cooker according to the present invention uses LED elements for interior lighting in the heating chamber and makes the illumination holes quadrilateral so that a small number of LED elements brightly illuminate the interior. It can be illuminated and can save energy and reduce costs, making it effective for high-frequency cookers.

DESCRIPTION OF SYMBOLS 1 Illumination hole 2 Heating chamber 3 Heating chamber opening 4 Incandescent bulb 5 Air guide 6 Illumination punching 7 LED board 8 Transparent diffuser 9 Substrate holder 1a 1st illumination hole 1b 2nd illumination hole 7a 1st LED element 7b Second LED element

Claims (3)

  1. In a high-frequency cooker that heats the object to be heated by supplying a high frequency into a heating chamber that houses the object to be heated, an LED element is used for interior lighting in the heating chamber, and the LED element is placed on the wall surface of the heating chamber In order to irradiate light into the heating chamber, the illumination holes are provided in the wall surface of the heating chamber, the shape of the illumination holes is a quadrilateral, and the quadrilateral illumination hole is a front surface of the heating chamber. A high-frequency cooker in which the length of one side at the back of the heating chamber parallel to the opening surface for freely taking in and out the object to be heated is longer than one side before the heating chamber.
  2. The high frequency cooking device according to claim 1, wherein the LED element is composed of a plurality of elements and has a lighting pattern such as simultaneous lighting and one-side lighting by a combination of different color temperatures.
  3. The transparent diffusion plate for diffusing the light of the said LED element and irradiating every corner in the heating chamber between the illumination hole provided in the heating chamber wall surface and the LED element is provided. High frequency cooker.
JP2011162728A 2011-07-26 2011-07-26 High frequency cooker Active JP5747162B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011162728A JP5747162B2 (en) 2011-07-26 2011-07-26 High frequency cooker

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011162728A JP5747162B2 (en) 2011-07-26 2011-07-26 High frequency cooker
EP12817226.9A EP2738473B1 (en) 2011-07-26 2012-07-26 High-frequency cooker
PCT/JP2012/004784 WO2013014940A1 (en) 2011-07-26 2012-07-26 High-frequency cooker

Publications (2)

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JP2013024531A JP2013024531A (en) 2013-02-04
JP5747162B2 true JP5747162B2 (en) 2015-07-08

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JP2011162728A Active JP5747162B2 (en) 2011-07-26 2011-07-26 High frequency cooker

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EP (1) EP2738473B1 (en)
JP (1) JP5747162B2 (en)
WO (1) WO2013014940A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014136389A1 (en) * 2013-03-07 2014-09-12 パナソニック株式会社 Heating cooking device
JP2019190770A (en) * 2018-04-27 2019-10-31 パナソニックIpマネジメント株式会社 Heating cooker

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4025734C2 (en) * 1990-08-14 1997-04-03 Bosch Siemens Hausgeraete Lighting device for an oven
JPH05164331A (en) 1991-12-12 1993-06-29 Sharp Corp Microwave oven
JPH064503U (en) * 1992-06-18 1994-01-21 三洋電機株式会社 Microwave
KR970062507A (en) * 1996-02-14 1997-09-12 김광호 Lighting equipment for microwave ovens
JP2003139336A (en) * 2001-11-01 2003-05-14 Matsushita Electric Ind Co Ltd Cooker
JP3920701B2 (en) * 2002-03-28 2007-05-30 三洋電機株式会社 High frequency heating device
KR20050056053A (en) * 2003-12-09 2005-06-14 삼성전자주식회사 Lamp assembly and cooking apparatus having the same
JP2005299977A (en) * 2004-04-08 2005-10-27 Hitachi Home & Life Solutions Inc Heating cooker
JP2006017390A (en) * 2004-07-02 2006-01-19 Hitachi Home & Life Solutions Inc Heating cooker
AT537409T (en) * 2008-05-31 2011-12-15 Electrolux Home Prod Corp Oven, especially household oven
JPWO2010110262A1 (en) * 2009-03-24 2012-09-27 シャープ株式会社 Cooker
JP5431995B2 (en) 2010-02-13 2014-03-05 国立大学法人福井大学 Fluorescent material for aqueous fluorescent paint and method for producing the same

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Publication number Publication date
EP2738473A4 (en) 2015-01-07
EP2738473B1 (en) 2015-11-25
EP2738473A1 (en) 2014-06-04
WO2013014940A1 (en) 2013-01-31
JP2013024531A (en) 2013-02-04

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