WO2016127655A1 - Corps de porte de four à micro-ondes, cadre de porte de corps de four à micro-ondes, et four à micro-ondes - Google Patents

Corps de porte de four à micro-ondes, cadre de porte de corps de four à micro-ondes, et four à micro-ondes Download PDF

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Publication number
WO2016127655A1
WO2016127655A1 PCT/CN2015/091112 CN2015091112W WO2016127655A1 WO 2016127655 A1 WO2016127655 A1 WO 2016127655A1 CN 2015091112 W CN2015091112 W CN 2015091112W WO 2016127655 A1 WO2016127655 A1 WO 2016127655A1
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WO
WIPO (PCT)
Prior art keywords
door frame
microwave oven
door
frame body
wall surface
Prior art date
Application number
PCT/CN2015/091112
Other languages
English (en)
Chinese (zh)
Inventor
王轩
唐相伟
彭定元
陈茂顺
Original Assignee
广东美的厨房电器制造有限公司
美的集团股份有限公司
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 广东美的厨房电器制造有限公司, 美的集团股份有限公司 filed Critical 广东美的厨房电器制造有限公司
Publication of WO2016127655A1 publication Critical patent/WO2016127655A1/fr

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    • 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
    • H05B6/6414—Aspects relating to the door of the microwave heating apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/02—Stoves or ranges heated by electric energy using microwaves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/04—Doors specially adapted for stoves or ranges with transparent panels

Definitions

  • the present invention relates to the field of kitchen appliances, and more particularly to a door frame for a door of a microwave oven, a door body of the microwave oven including the door frame, and a microwave oven including the door body.
  • the prior art microwave oven door body 1 is composed of a door frame 10 ⁇ , a choke valve 11 ⁇ mounted on the door frame 10 ⁇ , and a door glass 12 ⁇ , and a plurality of outer peripheral portions of the door frame 10 ⁇ are formed to be turbulent.
  • the cavity acts as a groove 100 ⁇ .
  • the groove 100 is a frame with a turbulent cavity which is formed by bending the outer periphery of the door frame 10 ⁇ inwardly and bent, and the choke valve 11 is pressed against the groove 100 ⁇ .
  • the existing door frame 10 is a rectangular door frame, the shape of the groove 100 ⁇ is not easily maintained at the corner of the door frame 10, and the gap between the door frame 10 ⁇ and the front plate of the microwave oven is excessively large, and the microwave is diffracted, resulting in a microwave leakage phenomenon; Secondly, the rectangular door frame is not conducive to the uniform distribution of the microwave field in the cavity; again, the side door or the pull-down door of the rectangular door frame takes up space, the effective space utilization rate is not high, and it is not convenient to clean.
  • the present invention aims to solve at least one of the technical problems existing in the prior art.
  • an object of the first aspect of the present invention is to provide a door frame for a door of a microwave oven.
  • the shape of the groove is not easily maintained stable, and microwave leakage is likely to occur, and The problem of uneven distribution of the microwave field in the cavity.
  • an embodiment of the present invention provides a door frame for a door of a microwave oven, comprising: a door frame body having a circular or elliptical shape, and an upper end of the side wall of the door frame body is bent outward Forming a rim; and a plurality of L-shaped hem, the vertical edge of the hem and the outer edge of the rim Connected, the lateral side faces the side wall of the door frame body, and the folded edge, the surrounding edge and the side wall of the door frame body form a groove.
  • the door frame body has a circular or elliptical shape, so that a plurality of flanges on the circumference of the door frame body are also distributed around the circumference of the circle or the ellipse, and a plurality of flanges and rims are provided.
  • the outer wall surface of the side wall of the door frame body forms a plurality of grooves and is also distributed around the circumference of the circle or the ellipse, so that the turbulent cavity formed by the plurality of grooves is circular or elliptical, which is different from the prior art.
  • the circular or elliptical door frame body Compared with the square door frame, the circular or elliptical door frame body has a smooth transition everywhere, and there is no corner, so that the structure of the groove is easy to maintain, and the gap between the door frame and the front plate of the microwave oven can be well maintained to prevent the gap from passing. Large microwaves are diffracted, which leads to microwave leakage.
  • the circular or elliptical door frame body makes the door of the microwave oven as a whole circular or elliptical, which improves the uneven distribution of electromagnetic fields. The problem and increased usage of the heating chamber space.
  • the door frame of the door of the microwave oven provided by the above embodiment of the present invention further has the following additional technical features:
  • a height difference between a lower wall surface of the bottom wall of the door frame body and an upper wall surface of the surrounding edge is 20 mm to 30 mm; and/or an outer wall surface of the side wall of the door frame body
  • the distance between the lower end and the outer wall surface of the vertical side of the flange is 11 mm to 25 mm; and/or between the lower wall surface of the bottom wall of the door frame body and the lower end surface of the lateral side of the flange
  • the height difference is 2.5 mm to 3 mm; and/or the distance between the lower end of the outer wall surface of the side wall of the door frame body and the inner end surface of the lateral side of the flange is 2.5 mm to 3 mm.
  • the height of the vertical side of the hem is 7mm-17mm; and/or the thickness of the hem is 8mm-14mm; and/or the distance between adjacent edges It is 3mm-13mm.
  • the plurality of flanges are evenly disposed along the circumferential direction of the door frame body.
  • connection between the side wall of the door frame body and the surrounding edge is chamfered; and/or the connection between the lateral side of the folded edge and the vertical side is chamfered.
  • the center of the door frame body is provided with a convex groove that protrudes upward or downward.
  • the height of the convex groove is 5 mm to 10 mm.
  • the door frame body is provided with a vent hole.
  • the embodiment of the second aspect of the present invention provides a door of a microwave oven, comprising: a door frame of the door body of the microwave oven according to any of the above embodiments; an annular choke valve mounted on the door frame, and the choke cover a groove on the door frame; and a panel, the panel being mounted on the door frame.
  • the choke is a plastic piece
  • the door frame is a metal piece
  • the panel is a glass panel
  • An embodiment of the third aspect of the present invention provides a microwave oven comprising the microwave oven door body of any of the above embodiments.
  • FIG. 1 is a schematic structural view of a door of a microwave oven according to the related art
  • FIG. 2 is a schematic structural view of a door frame of the door of the microwave oven of FIG. 1;
  • FIG. 3 is a perspective structural view of a door frame of a door of a microwave oven according to an embodiment of the invention.
  • Figure 4 is a front view of the structure of Figure 3;
  • Figure 5 is a cross-sectional view showing the structure taken along line A-A of Figure 4.
  • Figure 6 is an enlarged schematic view showing the structure of the portion B of Figure 5;
  • FIG. 7 is a schematic perspective structural view of a door frame of a door of a microwave oven according to another embodiment of the present invention.
  • some embodiments of the present invention provide a door frame 1 for a door of a microwave oven, comprising: a door frame body 10 and a plurality of flanges 11 having an L-shaped cross section.
  • the door frame body 10 is circular or elliptical, and the upper end of the side wall 100 of the door frame body 10 is bent outward to form a rim 101;
  • each of the flanges 11 is connected to the outer edge of the side edge 101, the lateral side faces the side wall 100 of the door frame body 10, and each of the folded edge 11 and the surrounding edge 101 is
  • the side wall 100 of the door frame body 10 constitutes a groove 12, and the plurality of the folded edges 11 are uniformly disposed along the circumferential direction of the door frame body 10.
  • the door frame body has a circular or elliptical shape, so that a plurality of flanges on the circumference of the door frame body are also distributed around the circumference of the circle or the ellipse, and a plurality of flanges and rims are provided.
  • the outer wall surface of the side wall of the door frame body forms a plurality of grooves and is also distributed around the circumference of the circle or the ellipse, so that the turbulent cavity formed by the plurality of grooves is circular or elliptical, which is different from the prior art.
  • the circular or elliptical door frame body Compared with the square door frame, the circular or elliptical door frame body has a smooth transition everywhere, and there is no corner, so that the structure of the groove is easy to maintain, and the gap between the door frame and the front plate of the microwave oven can be well maintained to prevent the gap from passing. Large microwaves are diffracted, which leads to microwave leakage.
  • the circular or elliptical door frame body makes the door of the microwave oven as a whole circular or elliptical, which improves the uneven distribution of electromagnetic fields. The problem and increased usage of the heating chamber space.
  • the door frame body 10 is circular, and the height difference a between the lower wall surface of the bottom wall of the door frame body 10 and the upper wall surface of the surrounding edge 101 is 20 mm - 30 mm;
  • the distance b between the lower end of the outer wall surface of the side wall 100 of the door frame body 10 and the outer wall surface of the vertical side of the flange 11 is 11 mm - 25 mm;
  • the height difference c between the lower wall surface of the bottom wall of the door frame body 10 and the lower end surface of the lateral side 111 of the flange 11 is 2.5 mm - 3 mm;
  • the distance d between the lower end of the outer wall surface of the side wall 100 of the door frame body 10 and the inner end surface of the lateral side 111 of the flange 11 is 2.5 mm to 3 mm.
  • the flow chamber has better anti-microwave leakage effect
  • c determines the thickness of the door seal, generally considered to be minimized, such as within 2.5 ⁇ 3.0mm
  • the thickness X of the flange 11 is 8mm-14mm;
  • the distance Y between the adjacent flanges 11 is 3mm-13mm;
  • the height Z of the vertical side 110 of the flange 11 is 7 mm to 17 mm.
  • X, Y and Z jointly determine the size of the inductor resistance.
  • a chamfer 130 is provided at a joint between the side wall 100 of the door frame body 10 and the surrounding edge 101 .
  • a chamfer 131 is provided at the junction of the lateral side 111 and the vertical side 110 of the folded edge 11.
  • the radii of the chamfers 130 and 131 are within the minimum allowable range of die stamping.
  • the center of the door frame body 10 is provided with a convex groove 103 protruding upward or downward.
  • the height of the convex groove 103 is 5 mm to 10 mm.
  • the microwave field is improved in the cavity by providing a circular or elliptical convex groove (which can be formed by stamping) protruding in the center of the circular or elliptical door frame body and protruding at a height of 5 mm to 10 mm. Distribution in the body.
  • a circular or elliptical convex groove which can be formed by stamping
  • the height of the convex groove is not limited to the above-mentioned 5 mm to 10 mm, and can be set according to actual needs.
  • the center of the door frame body 10 is provided with an upwardly convex convex groove 103 . That is, the door frame 1 is designed as a cavity.
  • the door frame body 10 is provided with a vent hole 102.
  • vent holes By providing a plurality of vent holes in the door frame body, it is advantageous to discharge steam in the heating chamber of the microwave oven to the outside through the vent holes.
  • An embodiment of the second aspect of the present invention provides a microwave oven door body (not shown) including: an annular choke (not shown), a panel (not shown), and any of the above
  • the door frame 1 of the door of the microwave oven according to the embodiment has all the beneficial effects of the door frame described in any of the above embodiments, and details are not described herein again.
  • the choke valve is mounted on the door frame 1, and the choke valve covers the groove 12 on the door frame 1;
  • the panel is mounted on the door frame 1.
  • the door frame provided by the embodiment of the present invention is circular or elliptical, and therefore, the shape of the choke and the panel needs to be adapted to the shape of the door frame.
  • the choke valve is a plastic piece
  • the door frame 1 is a metal piece
  • the panel is a glass panel.
  • the materials of the choke, the door frame and the panel are not limited to the above, and can be set according to actual needs.
  • An embodiment of the third aspect of the present invention provides a microwave oven (not shown) comprising the microwave oven door body of any of the above embodiments.
  • the door frame of the door body of the microwave oven provided by the embodiment of the present invention has a round or elliptical shape, so that there is no corner on the door frame body, which is favorable for the structure of the groove to be stable, thereby making the door frame and the door frame
  • the gap between the front plates of the microwave oven is kept stable, and the microwave caused by the excessive gap is prevented from being diffracted, thereby causing the microwave leakage phenomenon to occur; at the same time, the circular or elliptical door frame body effectively improves the problem of uneven distribution of the electromagnetic field, and improves the problem.
  • the usage rate of the heating chamber space is a round or elliptical shape, so that there is no corner on the door frame body, which is favorable for the structure of the groove to be stable, thereby making the door frame and the door frame
  • the gap between the front plates of the microwave oven is kept stable, and the microwave caused by the excessive gap is prevented from being diffracted, thereby causing the microwave leakage phenomenon to occur; at the same time, the circular or
  • connection means two or more; the terms “installation”, “connection” and the like should be understood broadly.
  • connection may be a fixed connection or may be Disassemble the connections, or connect them integrally; they can be connected directly or indirectly via an intermediate medium.
  • connection may be a fixed connection or may be Disassemble the connections, or connect them integrally; they can be connected directly or indirectly via an intermediate medium.
  • the description of the terms “one embodiment”, “some embodiments”, “specific embodiments” and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in the present invention. At least one embodiment or example.
  • the schematic representation of the above terms does not necessarily refer to the same embodiment or example.
  • the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Ovens (AREA)

Abstract

L'invention concerne un corps de four à micro-ondes (1'), un cadre de porte (1) de corps de porte de four à micro-ondes, et un four à micro-ondes. Le cadre de porte (1) de corps de four à micro-ondes comprend un corps de cadre de porte (10) et de multiples bords repliés (11) en L. Le corps de cadre de porte (10) est rond ou elliptique. Les extrémités supérieures des parois latérales (100) du corps de cadre de porte (10) sont recourbées vers l'extérieur afin de former un bord périphérique (101). Les bords verticaux (110) des bords repliés (11) sont reliés au bord extérieur du bord périphérique (101). Les bords horizontaux (111) des bords repliés (11) font face aux parois latérales (100) du corps de cadre de porte (10). Les bords repliés (11), le bord périphérique (101) et les parois latérales (100) du corps de cadre de porte (10) forment des rainures (12).
PCT/CN2015/091112 2015-02-13 2015-09-29 Corps de porte de four à micro-ondes, cadre de porte de corps de four à micro-ondes, et four à micro-ondes WO2016127655A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510083531.6 2015-02-13
CN201510083531.6A CN104613517A (zh) 2015-02-13 2015-02-13 微波炉门体及其门框、微波炉

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WO2016127655A1 true WO2016127655A1 (fr) 2016-08-18

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CN (1) CN104613517A (fr)
WO (1) WO2016127655A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104613517A (zh) * 2015-02-13 2015-05-13 广东美的厨房电器制造有限公司 微波炉门体及其门框、微波炉
CN104864426B (zh) * 2015-06-08 2018-04-27 广东美的厨房电器制造有限公司 微波烹饪工具
CN108366445B (zh) * 2018-02-08 2021-11-09 广东美的厨房电器制造有限公司 加热烹调器

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122647A1 (fr) * 1983-03-15 1984-10-24 Philips Norden AB Dispositif d'étanchéité pour fours à micro-ondes
KR100366021B1 (ko) * 1999-06-26 2002-12-26 삼성전자 주식회사 전자렌지의 도어 조립체
CN103047699A (zh) * 2012-12-31 2013-04-17 广东格兰仕微波炉电器制造有限公司 微波炉的炉门结构
CN103260837A (zh) * 2010-12-23 2013-08-21 伊士曼化工公司 具有增强的微波发射系统的木材加热器
CN203501250U (zh) * 2013-09-18 2014-03-26 广东美的厨房电器制造有限公司 用于微波炉的门框组件和具有其的炉门组件、微波炉
CN103836684A (zh) * 2012-11-23 2014-06-04 美的集团股份有限公司 用于微波炉的炉门组件和具有其的微波炉
CN104613517A (zh) * 2015-02-13 2015-05-13 广东美的厨房电器制造有限公司 微波炉门体及其门框、微波炉
CN204460354U (zh) * 2015-02-13 2015-07-08 广东美的厨房电器制造有限公司 微波炉门体及其门框、微波炉

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122647A1 (fr) * 1983-03-15 1984-10-24 Philips Norden AB Dispositif d'étanchéité pour fours à micro-ondes
KR100366021B1 (ko) * 1999-06-26 2002-12-26 삼성전자 주식회사 전자렌지의 도어 조립체
CN103260837A (zh) * 2010-12-23 2013-08-21 伊士曼化工公司 具有增强的微波发射系统的木材加热器
CN103836684A (zh) * 2012-11-23 2014-06-04 美的集团股份有限公司 用于微波炉的炉门组件和具有其的微波炉
CN103047699A (zh) * 2012-12-31 2013-04-17 广东格兰仕微波炉电器制造有限公司 微波炉的炉门结构
CN203501250U (zh) * 2013-09-18 2014-03-26 广东美的厨房电器制造有限公司 用于微波炉的门框组件和具有其的炉门组件、微波炉
CN104613517A (zh) * 2015-02-13 2015-05-13 广东美的厨房电器制造有限公司 微波炉门体及其门框、微波炉
CN204460354U (zh) * 2015-02-13 2015-07-08 广东美的厨房电器制造有限公司 微波炉门体及其门框、微波炉

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