WO2009079955A1 - Four à micro-ondes avec fonction barbecue - Google Patents

Four à micro-ondes avec fonction barbecue Download PDF

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Publication number
WO2009079955A1
WO2009079955A1 PCT/CN2008/073285 CN2008073285W WO2009079955A1 WO 2009079955 A1 WO2009079955 A1 WO 2009079955A1 CN 2008073285 W CN2008073285 W CN 2008073285W WO 2009079955 A1 WO2009079955 A1 WO 2009079955A1
Authority
WO
WIPO (PCT)
Prior art keywords
microwave oven
grilling
tube
function according
driven gear
Prior art date
Application number
PCT/CN2008/073285
Other languages
English (en)
Chinese (zh)
Inventor
Yongli Du
Original Assignee
Lg Electronics Tianjin Appliances Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lg Electronics Tianjin Appliances Co., Ltd. filed Critical Lg Electronics Tianjin Appliances Co., Ltd.
Publication of WO2009079955A1 publication Critical patent/WO2009079955A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/647—Aspects related to microwave heating combined with other heating techniques
    • H05B6/6482—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating

Definitions

  • the present invention relates to a microwave oven, and more particularly to a microwave oven having a grilling function.
  • a microwave oven is a device that heats food by utilizing frictional heat generated between molecules by destroying the molecular arrangement in the food by using a microwave of about 2450 MHz per second emitted from a magnetron as a heating source.
  • the microwave oven having a grilling function can also grill the food using the radiant energy generated by the grill pipe provided inside.
  • Fig. 1 is a perspective view showing the external structure of a microwave oven having a grilling function.
  • Fig. 2 is a perspective view showing the internal portion of the microwave oven shown in Fig. 1. As shown in FIG. 1 to FIG.
  • the microwave oven 1 having a grilling function mainly comprises: an outer casing 2 constituting a top surface, a bottom surface, two side surfaces and a rear outer structure of the microwave oven; and being disposed in the outer casing 2 On the inner side, and the inner central portion is rotatably provided with a heating chamber 4 on which the turntable 3 for placing food to be placed is placed; on the other side of the outer casing 2, the front end surface is provided
  • the control panel 8 with the timer knob 5, the menu selection button 6 and the display screen 7 is mounted thereon, and the electronic control unit 9 with the magnetron 13 and electronic components such as a high voltage transformer and a cooling fan not shown in the figure is mounted on the rear.
  • a grilling pipe 1 1 mounted on the grill pipe assembly 10 on the top surface of the heating chamber 4 and capable of generating radiant energy; and a furnace disposed on the front end surface of the outer casing 2 and selectively opening and closing the heating chamber 4 Door 12.
  • a part of the air blown from the cooling fan installed inside the electric control chamber 9 enters the inside of the heating chamber 4 through the vent hole on the right side wall of the heating chamber 4, and the other portion directly along the heating chamber 4 The upper surface is blown over. A part of the air entering the inside of the heating chamber 4 is blown out from the left side wall of the heating chamber 4, and the other part is blown upward through the opening of the upper portion of the heating chamber 4.
  • FIG. 3 is a schematic structural view of a heater device of such a microwave oven.
  • the heater 60 that is, the grilling tube is rotatably disposed in the middle of an inner side surface of the heating chamber, and although the heater 60 of this structure can be rotated in the heating chamber, it can be fully utilized.
  • the heater 60 is composed of a heater body 62, a connecting portion 64, and a fixing portion 66, wherein one side of the heater body 62 is linear.
  • the other side is curved, that is, it is a non-central symmetrical structure, so that it does not achieve equal-area heat radiation when it is rotated by 180 °, which makes the heating uniformity unguaranteed.
  • the curved portion is mainly concentrated at the center of one side thereof, that is, the heat radiation area at the center is large, the temperature at the portion is relatively high, and as a result, the food under the portion is prone to local over-fire problem.
  • the heater 60 needs to be turned over, it needs to be manually performed by a person, so that there is not only the risk of burns, but also the degree of automation is low, and the occurrence of the heater 60 and the food occurs when the food of a large volume is grilled, such as improper operation. The problem of interference.
  • an object of the present invention is to provide a microwave oven having a uniformity of cooking, which can improve heating efficiency, can extend service life, is safe, and is highly automated.
  • the microwave oven with a grilling function comprises an outer box body constituting a top surface, a bottom surface, two side surfaces and a rear outer structure of the microwave oven; disposed on an inner side of the outer box body, and the inner center portion is
  • the rotating method is provided with a turntable on which a food to be cooked can be placed Heating the cavity; disposed on the other side of the outer casing, the front end surface is provided with a control panel on which a timer knob, a menu selection button and a display screen are mounted, and a magnetron and a high voltage transformer are mounted at the rear,
  • the microwave oven having a grilling function further includes a centrally symmetrical shape and capable of a rotating grilling tube; and a driving assembly for driving the grilling tube mounted outside the side of the heating chamber.
  • the two ends of the grilling tube are respectively connected to both sides of the heating chamber.
  • the grilling tube is formed by a body located at an intermediate portion and having a line shape in a plane, a connecting portion extending from two ends of the body in a direction perpendicular or inclined to a plane thereof, and horizontally outward from an end of the connecting portion.
  • the fixed portion formed by extension is formed.
  • the body, the connecting portion and the fixing portion of the grilling tube are integrally formed.
  • the grilling tube is made of a copper tube material in which a rotating resistance wire is embedded.
  • the driving component comprises a driving motor, a driving gear, a driven gear and two micro switches; wherein an output shaft of the driving motor cooperates with an axis of the driving gear; a driving gear meshes with the driven gear; and a driven gear a boss for pressing the upper contact of the micro switch is protruded outwardly on the outer circumference, and a fixing portion on the grill pipe penetrates the side of the heating cavity to match the axis of the driven gear, and The outer end of the fixing portion is connected with a terminal; the two micro-switches are respectively disposed at two sides of the driven gear.
  • the outer surface of the driving gear is recessed to form a limiting groove (25) with a curvature of 180°.
  • a terminal protection cover is integrally formed in a middle portion of the outer surface of the driven gear, and an opening is formed on a side surface of the terminal protection cover, so that the terminal on the barbecue tube protrudes outward from the opening.
  • the thickness of a tooth on the driving gear is smaller than the thickness of the other teeth, and the thickness of the two teeth on the driven gear that can mesh with the tooth is also smaller than the thickness of other teeth on the gear, and the surface of the tooth passes Antiseptic treatment.
  • the thickness of a tooth on the driving gear is smaller than the thickness of the other teeth, and a groove is formed on the outer circumference of the driven gear that can contact the tooth for inserting the tooth.
  • the drive motor is an asynchronous motor or a stepper motor.
  • the microwave oven having a grilling function further includes a laser light sensing device mounted in a middle portion of the inner side surface of the heating chamber and capable of emitting a laser line to the inside of the heating chamber in a horizontal direction.
  • the barbecue tube in the microwave oven with barbecue function provided by the invention has a central symmetrical structure, so that when it is in the upper gear position and the lower gear position, since the same area heat radiation can be realized, the same heating effect can be achieved, and thus the food cooking Good uniformity and low energy consumption.
  • both sides of the grilling tube can be utilized as the radiating surface, the degree of corrosion of one of the sides can be reduced, so that the service life can be effectively extended and the energy consumption is low.
  • the laser light sensing device can automatically determine the position of the barbecue tube according to the height of the food, so that the distance between the barbecue tube and the food can be kept optimal, which not only improves the cooking speed of the barbecue, but also has high automation and safety. And can avoid the problem of interference between the barbecue tube and the food.
  • Fig. 1 is a perspective view showing the external structure of a microwave oven having a grilling function.
  • Fig. 2 is a perspective view showing the internal portion of the microwave oven shown in Fig. 1.
  • Fig. 3 is a schematic view showing the structure of a heater device of a microwave oven of the prior art.
  • Fig. 4 is a schematic view showing the internal portion of the microwave oven having a grilling function provided by the present invention provided with the grilling tube in the upper gear position.
  • Fig. 5 is a schematic view showing the internal portion of the microwave oven having a grilling function provided by the present invention provided with the grilling tube in the lower gear position.
  • Fig. 6 is a perspective view showing the structure of a grilling tube and a grilling tube driving assembly in a microwave oven having a grilling function according to the present invention.
  • FIG. 7 and FIG. 8 are respectively schematic structural views of a portion of a grilling tube driving assembly in the microwave oven shown in FIG. 6. Specific actual 3 ⁇ 4 ⁇
  • the microwave oven with barbecue function provided by the present invention comprises an outer casing 2 constituting a top surface, a bottom surface, two side surfaces and a rear outer structure of the microwave oven; An inner side of the inner portion of the outer casing 2
  • the control panel 8 with the timer knob 5, the menu selection button 6 and the display screen 7 is mounted thereon, and the electronic control unit of the magnetron 13 and the electronic components such as the high voltage transformer and the cooling fan not shown in the figure are mounted on the rear.
  • the microwave oven having a grilling function further includes a grilling tube having a central symmetrical shape and capable of rotating And a drive assembly 18 for driving the transition between the upper and lower gears of the grilling tube 14 and mounted outside the side of the heating chamber 4.
  • the two ends of the grilling tube 14 are respectively connected to both side faces of the heating chamber 4, preferably in the middle of both side faces of the heating chamber 4.
  • the grilling tube 14 is formed by a body 15 located at an intermediate portion and having a line shape in a plane, and a connecting portion 16 and a connecting portion 16 which are formed from both ends of the body 15 in a direction perpendicular or inclined to a plane along the plane thereof.
  • the end portion is formed by a fixing portion 17 formed by extending the end horizontally.
  • the body 15, the connecting portion 16 and the fixing portion 17 of the grilling tube 14 are integrally formed.
  • the grilling tube 14 is made of a copper tube material in which a rotating resistance wire is embedded.
  • the drive assembly 18 includes a drive motor 20, a drive gear 21, a driven gear 22 and two micro switches 23; wherein the output shaft of the drive motor 20 cooperates with the axis of the drive gear 21; the drive gear 21 and the follower
  • the gears 22 are meshed with each other; a boss 24 for pressing the contacts on the microswitch 23 is formed to protrude outwardly from the outer circumference of the driven gear 22, and the left side fixing portion 17 on the grilling tube 14 penetrates the heating chamber
  • the left side of the rear face 4 is matched with the shaft center of the driven gear 22, and the outer end of the left side fixing portion 17 is connected with the terminal 27; the two microswitches 23 are respectively disposed on both sides of the driven gear 22.
  • the outer surface of the driving gear 21 is recessed and formed with a limiting slot 25 having a curvature of 180°, and the rotation direction of the driving gear 21 can be defined by means of a member such as a supporting piece placed in the limiting groove 25, so that the rotating direction of the driving gear 21 is defined.
  • the grill tube 14 controlled by the driving gear 21 can only rotate in a certain track while being in a desired position Stop at.
  • a terminal protection cover 28 is integrally formed in a middle portion of the outer surface of the driven gear 22, and an opening 29 is formed on a side surface of the terminal protection cover 28, so that the terminal 27 on the barbecue tube 14 can protrude outward from the opening 29.
  • the wiring harness is not hindered, because the distance of the terminal 27 from the outer casing 2 is relatively close.
  • the outer casing 2 is deformed, since the voltage of the terminal 27 is relatively high, there is a risk of electric shock or the like, which is designed to prevent leakage. The danger, and the installation is convenient.
  • the thickness of a tooth on the driving gear 21 is smaller than the thickness of the other teeth, and the thickness of the two teeth on the driven gear 22 that can mesh with the tooth is also smaller than the thickness of other teeth on the gear, and the teeth are
  • the surface is treated with antiseptic treatment.
  • the thickness of a tooth on the driving gear 21 is smaller than the thickness of the other teeth, and a groove is formed on the outer circumference of the driven gear 22 which is in contact with the tooth for inserting the tooth. This is because the gears are required to be fixedly engaged when the gears are installed, and no misalignment can occur. This design prevents the gears from being misaligned during installation to improve work efficiency.
  • the drive motor 20 is an asynchronous motor. If the motor is rotated enough to resist, such as the resistance of the limit groove 25, it can automatically rotate in the opposite direction.
  • a stepper motor can also be used.
  • the microwave oven having a grilling function further includes a laser light sensing device 19 mounted on a middle side of the heating chamber 4 and capable of emitting a laser line to the inside of the heating chamber 4 in a horizontal direction.
  • the initial position of the grilling pipe 14 is in the upper gear position shown in FIG.
  • the control panel 8 can be The timer knob 5 and the menu selection button 6 are set to the corresponding positions to activate the microwave oven.
  • the laser light sensing device 19 installed in the middle of the inner side of the heating chamber 4 will emit laser light horizontally to the inside of the heating chamber 4.
  • the barbecue tube 14 is maintained in the position of the upper gear position, at this time, the boss 24 on the driven gear 22 is used for starting
  • the contacts on the micro switch 23 of the stall grilled food are in contact with each other. As a result, the micro switch 23 is closed, and then the upper stall barbecue cooking starts.
  • the driving motor 20 disposed outside the left side of the heating chamber 4 is activated, and under the action of the driving motor 20, the driving gear 21 is rotated in a certain direction, thereby
  • the driven gear 22 and the grilling tube 14 that are engaged with it are also rotated together until the grilling tube 14 is rotated to the lower gear position shown in FIG. 5, at which time the boss 24 on the driven gear 22 is used for starting.
  • the contacts on the micro switch 23 of the lower-position grilled food are in contact with each other, and as a result, the micro-switch 18 is closed, and then the lower-position barbecue cooking starts.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Baking, Grill, Roasting (AREA)
  • Electric Ovens (AREA)

Abstract

L'invention porte sur un four à micro-ondes avec fonction barbecue, qui comprend : un boîtier externe (2) ; une cavité de chauffage (4) ; une chambre de commande électrique (9) ; une porte de four (12) ; un tube à barbecue (14) ayant deux extrémités respectivement reliées aux parties intermédiaires des deux côtés de la cavité de chauffage (4), ayant une forme centrosymétrique et étant apte à tourner de 180 ° ; une unité d'entraînement (18) montée sur l'extérieur du côté gauche de la cavité de chauffage (4), pour entraîner le tube à barbecue (14) afin de le déplacer entre des positions supérieure et inférieure ; et un dispositif d'induction àlumière de laser (19) monté sur la partie intermédiaire d'un côté interne de la cavité de chauffage (4) et qui est apte à émettre une lumière de laser dans la direction horizontale. Le dispositif d'induction à lumière de laser (19) peut déterminer automatiquement la position du tube à barbecue (14) sur la base de la hauteur d'aliment, maintenant ainsi une distance optimale entre le tube à barbecue (14) et les aliments.
PCT/CN2008/073285 2007-12-20 2008-12-02 Four à micro-ondes avec fonction barbecue WO2009079955A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA200710151170XA CN101464014A (zh) 2007-12-20 2007-12-20 一种具有烧烤功能的微波炉
CN200710151170.X 2007-12-20

Publications (1)

Publication Number Publication Date
WO2009079955A1 true WO2009079955A1 (fr) 2009-07-02

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ID=40800724

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Application Number Title Priority Date Filing Date
PCT/CN2008/073285 WO2009079955A1 (fr) 2007-12-20 2008-12-02 Four à micro-ondes avec fonction barbecue

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CN (1) CN101464014A (fr)
WO (1) WO2009079955A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103034120A (zh) * 2012-12-27 2013-04-10 苏州久三智能科技有限公司 一种带烘焙功能的闹钟
CN109338074A (zh) * 2018-11-08 2019-02-15 安徽花蕊家具制造有限公司 一种弹簧回火炉

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101936550A (zh) * 2009-07-03 2011-01-05 乐金电子(天津)电器有限公司 一种新型烧烤式微波炉
CN101936551A (zh) * 2009-07-03 2011-01-05 乐金电子(天津)电器有限公司 一种新型烧烤式微波炉
CN102944030B (zh) * 2012-10-24 2015-03-25 合肥荣事达三洋电器股份有限公司 一种用于控制微波炉烤架旋转、停止的装置及其控制方法
CN109764368B (zh) * 2018-12-28 2020-07-14 广东美的厨房电器制造有限公司 微波腔体组件和微波炉

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59138822A (ja) * 1983-01-28 1984-08-09 Toshiba Corp 調理器
US4488025A (en) * 1981-07-28 1984-12-11 Sharp Kabushiki Kaisha Combined high-frequency and thermal heating oven
JPS6066026A (ja) * 1983-09-21 1985-04-16 Sharp Corp グリルオ−ブンレンジ
JPS61259029A (ja) * 1985-05-14 1986-11-17 Sharp Corp 加熱器
CN1626891A (zh) * 2003-12-12 2005-06-15 乐金电子(天津)电器有限公司 微波炉
CN1779339A (zh) * 2004-11-18 2006-05-31 乐金电子(天津)电器有限公司 微波炉及其控制方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488025A (en) * 1981-07-28 1984-12-11 Sharp Kabushiki Kaisha Combined high-frequency and thermal heating oven
JPS59138822A (ja) * 1983-01-28 1984-08-09 Toshiba Corp 調理器
JPS6066026A (ja) * 1983-09-21 1985-04-16 Sharp Corp グリルオ−ブンレンジ
JPS61259029A (ja) * 1985-05-14 1986-11-17 Sharp Corp 加熱器
CN1626891A (zh) * 2003-12-12 2005-06-15 乐金电子(天津)电器有限公司 微波炉
CN1779339A (zh) * 2004-11-18 2006-05-31 乐金电子(天津)电器有限公司 微波炉及其控制方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103034120A (zh) * 2012-12-27 2013-04-10 苏州久三智能科技有限公司 一种带烘焙功能的闹钟
CN109338074A (zh) * 2018-11-08 2019-02-15 安徽花蕊家具制造有限公司 一种弹簧回火炉

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Publication number Publication date
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