WO2019015259A1 - 微波炉组件及微波炉 - Google Patents

微波炉组件及微波炉 Download PDF

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Publication number
WO2019015259A1
WO2019015259A1 PCT/CN2017/119510 CN2017119510W WO2019015259A1 WO 2019015259 A1 WO2019015259 A1 WO 2019015259A1 CN 2017119510 W CN2017119510 W CN 2017119510W WO 2019015259 A1 WO2019015259 A1 WO 2019015259A1
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microwave oven
waveguide
insulating sheet
slot
opening
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PCT/CN2017/119510
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English (en)
French (fr)
Inventor
金正头
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广东美的厨房电器制造有限公司
美的集团股份有限公司
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Publication of WO2019015259A1 publication Critical patent/WO2019015259A1/zh

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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
    • H05B6/6408—Supports or covers specially adapted for use in microwave heating apparatus
    • 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
    • H05B6/80—Apparatus for specific applications
    • 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
    • H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
    • H05B2206/04—Heating using microwaves

Definitions

  • the present invention relates to the field of microwave heating technology, and in particular to a microwave oven assembly and a microwave oven.
  • a microwave oven is a common cooking appliance used to cook or heat food, which uses microwave energy to heat food placed in a microwave oven chamber.
  • a body 1' for forming a chamber of a microwave oven is generally provided with a waveguide port 11' for transmitting microwaves from the port into the cavity of the microwave oven, on the waveguide port 11'.
  • a mica-transparent (for example) mica sheet 2' is provided to block the waveguide port 11' to prevent oil or the like from entering the waveguide 3' from the waveguide port 11' to contaminate the magnetron or the like.
  • the mica sheet 2' and the body 1' are unlikely to be in a completely planar state, and the mica sheet 2' is mounted on the waveguide port 11', there is certainly a gap before and after the ease of assembly of the mica sheet 2' and the waveguide port 11'. Further, when the mica sheet 2' is assembled, the mica sheet 2' is deformed to the outside with a certain force, and then inserted into the position of the waveguide port, which causes a certain gap to be generated between the mica sheet 2' and the body 1'.
  • the various oils in the food will splash to the top of the waveguide port 11'. As shown in Figure 3, the oil will easily enter the mica sheet from the top position. Between 'and the body 1', condensation is formed, and a lot of dust is doped together over the years, and microwave heating causes the oil at the waveguide port 11' to be carbonized. Electromagnetic waves are concentrated in the carbonized position, which in turn causes ignition and damage to the microwave oven.
  • the invention provides a microwave oven assembly and a microwave oven to solve the problem that the oil enters between the mica sheet and the body at the waveguide port in the prior art, and the fire is easily generated after the carbonization of the oil.
  • an aspect of the present invention provides a microwave oven assembly including a body having a waveguide port, and a side of the body for facing a cavity of the microwave oven is fixed with an insulation that blocks the waveguide port and through which microwaves can pass. a sheet, the body being provided with a flow guiding structure covering a top end of the insulating sheet, the guiding structure capable of guiding a fluid above the insulating sheet to a side of the insulating sheet facing the microwave chamber.
  • the body is formed with a laterally extending opening, and the guiding structure is bent at a direction above the opening toward the microwave oven cavity to form a bent portion of the first slot, the insulation The top end of the sheet is inserted in the first slot.
  • the top end of the insulating sheet forms a "convex"-shaped structure, and the convex portion of the "convex"-shaped structure is inserted in the first slot.
  • the lower end of the insulating sheet is inserted into the second slot provided on the body.
  • the body is respectively provided with the second slot at a position corresponding to two corners of the lower end of the insulating sheet, and the two corner portions of the insulating sheet are respectively inserted in the second In the slot.
  • a waveguide is fixed on a side of the body facing away from the microwave oven chamber, and the waveguide is provided with a fixing portion that can be fixedly attached to the body.
  • the waveguide is respectively provided with the fixing portion welded to the body above and below the waveguide port.
  • the fixing portions above the waveguide openings are respectively welded to upper portions and lower portions of the openings.
  • a portion of the body fixed to the fixing portion protrudes in a direction of the waveguide.
  • a microwave oven comprising the microwave oven assembly as described above.
  • the microwave oven assembly and the microwave oven provided by the invention cover the top end of the insulating sheet by providing a flow guiding structure, and the guiding structure can guide the oil at the top of the waveguide to leave the top of the insulating sheet, so that the oil flows from the insulating sheet toward the microwave oven chamber.
  • One side flows down, thereby preventing oil from entering the gap between the insulating sheet and the body, thereby avoiding or reducing the phenomenon that the oil is concentrated in the gap and carbonized under the action of microwaves to cause sparking.
  • FIG. 1 is a schematic structural view of a portion of a microwave oven in which a waveguide port is provided in the prior art
  • Figure 2 is a cross-sectional view of the portion of the waveguide provided with the waveguide opening (the mica plate is disposed on the waveguide port);
  • Figure 3 is an enlarged view of a portion A in Figure 2;
  • FIG. 4 is a schematic structural view of a portion of a microwave oven in which a waveguide port is provided according to an embodiment of the present invention
  • Figure 5 is a cross-sectional view of the portion shown in Figure 4 provided with a waveguide
  • FIG. 6 is a schematic structural view of an insulating sheet according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural view showing an insulating sheet disposed on a waveguide port
  • Figure 8 is a cross-sectional view showing the insulating sheet disposed on the waveguide
  • Figure 9 is an enlarged view of a portion B in Figure 8.
  • the present invention provides a microwave oven assembly including a body 1 having a waveguide port 11 for forming a microwave oven chamber, and a side of the body 1 for sealing toward the side of the microwave oven chamber is fixed to block the waveguide port And an insulating sheet 2 through which the microwave can pass, wherein the body 1 is provided with a flow guiding structure covering the top end of the insulating sheet 2, the guiding structure capable of guiding the fluid above the insulating sheet 2 to the insulating sheet 2 The side facing the microwave oven chamber.
  • the insulating sheet 2 generally adopts a mica sheet, but is not limited to a mica sheet, and other suitable materials capable of passing microwaves and having an insulating effect may be employed.
  • the flow guiding structure can guide the fluid at the top of the waveguide port 11 (mainly oil generated during cooking) to leave the top of the insulating sheet 2 by providing a flow guiding structure covering the top end of the insulating sheet 2.
  • the oil is caused to flow from the side of the insulating sheet 2 facing the microwave chamber, thereby preventing oil from entering the gap between the insulating sheet 2 and the body 1, thereby preventing oil from accumulating in the gap under the action of microwaves. Carbonization produces sparking.
  • the body 1 is formed with a laterally extending opening 12, and the flow guiding structure is bent at an edge above the opening 12 toward the cavity of the microwave oven.
  • a bent portion 13 having a first socket 14 is formed, and a top end of the insulating sheet 2 is inserted in the first slot 14.
  • the top end of the insulating sheet 2 is formed in a "convex"-shaped structure, and the convex portion 21 of the "convex"-shaped structure is inserted in the first slot 14.
  • the bent portion 13 covering the top end of the insulating sheet 2 can guide the oil above the waveguide opening 11 to prevent oil from passing through the insulating sheet 2.
  • the top end flows into the gap between the insulating sheet 2 and the body 1.
  • the flow guiding structure is not limited to the structural form in which the opening is provided on the body 1 and the bent portion 13 is provided in the embodiment, for example, the top surface of the insulating sheet 2 may be fixedly fixed on the body 1 and The structure is inclined downward, and the inclined structure can also function as a flow guiding.
  • the structure in which the flow guiding structure in the present embodiment is provided to provide the bent portion 13 at the opening 12 is a preferred embodiment for making the process simple and the insulating sheet 2 easy to install.
  • the insulating sheet 2 In order to fix the insulating sheet 2 to the waveguide opening 11, in addition to inserting the upper end thereof into the first slot 14, it is further required to be mounted and fixed. In the present embodiment, preferably, the lower end of the insulating sheet 2 is inserted into the second slot 15 formed in the body 1.
  • the body 1 is respectively provided with a second slot 15 at a position corresponding to the two corners of the lower end of the insulating sheet 2, and the two corner portions of the insulating sheet 2 are respectively inserted in the second slot 15 in.
  • the second slot 15 is formed by two chamfer-like structures disposed on the body 1, and the chamfer-like structure respectively forms a second slot capable of receiving two corners of the lower end of the insulating sheet 2. 15.
  • the insulating sheet 2 is not limited to the mounting manner of inserting the lower end into the second slot 15, and may be fixed by other suitable means, for example, fixing the insulating sheet 2 to the body 1 by a fastener, or by a card. The connection is fixed to the body 1.
  • the second slot 15 is not limited to the two corner portions of the lower end of the insulating sheet 2, and may be provided to receive the entire lower end of the insulating sheet 2.
  • a waveguide 3 is usually fixed on a side of the body 1 facing away from the microwave chamber, and microwaves generated by the magnetron are transmitted through the waveguide 3 to the waveguide port 11 for fixing the waveguide 3 to the body 1 at the waveguide 3
  • a fixing portion 31 that can be attached to and fixed to the main body 1 is provided.
  • the fixing portion 31 can be specifically fixed to the body 1 by welding.
  • the waveguide 3 is provided with a fixing portion 31 welded to the body 1 above and below the waveguide port 11, respectively.
  • microwaves may leak from the opening 12, and since the opening 12 causes the strength of the body 1 to decrease, after the magnetron is assembled, the weight of the magnetron may
  • the body 1 is deformed, and in the present embodiment, the fixing portion 31 of the waveguide 3 is welded to the body 1 to solve the problem.
  • the fixing portions 31 above the waveguide opening 11 are respectively welded to the upper portion and the lower portion of the opening 12, as in FIGS. 8 and 9, the soldering point is respectively disposed at C above the opening and D at the lower side of the opening. .
  • the fixing portion 31 blocks the leakage of the microwave at the opening 12. Further, by reinforcing the strength of the periphery of the opening 12 by the fixing portion 31, deformation of the body 1 can be effectively prevented.
  • the portion of the main body 1 fixed to the fixing portion 31 protrudes in the direction of the waveguide 3. In this way, the fixing portion 31 can be well fitted to the body 1 and the welding can be secured.
  • a microwave oven comprising the microwave oven assembly as described above.
  • the microwave oven provided by the invention can effectively prevent the problem that the oil accumulates at the waveguide port and is carbonized to cause sparking, thereby effectively improving the quality of the microwave oven.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Cookers (AREA)
  • Electric Ovens (AREA)

Abstract

一种微波炉组件及微波炉，包括具有波导口（11）的本体（1），本体（1）的用于朝向微波炉腔室的一侧固定有封堵波导口（11）且微波能够穿过的绝缘片（2），本体（1）上设置有覆盖绝缘片（2）的顶端的导流结构，导流结构能够引导绝缘片（2）上方的流体流向绝缘片（2）的朝向微波炉腔室的一侧。该微波炉组件及微波炉能够有效防止或减轻油液聚集在波导口（11）处碳化而产生打火现象。

Description

微波炉组件及微波炉 技术领域
本发明涉及微波加热技术领域，具体地，涉及一种微波炉组件及微波炉。
背景技术
微波炉是用来烹饪或加热食物的常见烹调器具，其利用微波能加热置于微波炉腔室内的食物。
目前，如图1-图3所示，微波炉的用于形成腔室的本体1’上通常设置有波导口11’，以用于微波从该口传输至微波炉腔室内，在波导口11’上设置微波能够透过的(例如)云母片2’来封堵波导口11’，以防止油液等从波导口11’进入波导管3’进而污染磁控管等。
由于云母片2’和本体1’不可能是完全平面状态，而且云母片2’装配在波导口11’上时，为了云母片2’和波导口11’容易装配前后肯定会有间隙。另外，在装配云母片2’时，会用一定的力度使得云母片2’向外侧变形之后插进波导口的位置，这导致在云母片2’和本体1’之间产生一定的间隙。
用微波炉做食物的时候，特别是烤猪肉或鸡肉时，食物中的各种油会溅到波导口11’的顶部位置，如图3所示，油液从顶部位置会容易地进入云母片2’和本体1’之间，进而产生凝结，经年累月会有很多灰尘一起掺杂，再加上微波加热，导致波导口11’部位油碳化。电磁波会集中在碳化的位置，进而产生打火，导致微波炉损坏。
如果油在微波炉波导口上部或云母片表面凝结时，及时清理会减少打火问题，但是油在进入波导口和云母片之间时则无法清洁，因此油引起的打火问题就无法改善。
发明内容
本发明提供一种微波炉组件及微波炉，以解决现有技术中油在波导口处进入到云母片和本体之间，在油碳化后容易产生打火的问题。
为了实现上述目的，本发明一方面提供一种微波炉组件，包括具有波导口的本体，所述本体的用于朝向微波炉腔室的一侧固定有封堵所述波导口且微波能够穿过的绝缘片，所述本体上设置有覆盖所述绝缘片的顶端的导流结构，所述导流结构能够引导所述绝缘片上方的流体流向所述绝缘片的朝向所述微波炉腔室的一侧。
优选地，所述本体上形成有横向延伸的开口，所述导流结构为所述开口上方的边缘朝向所述微波炉腔室的方向弯折形成有第一插槽的弯折部，所述绝缘片的顶端插在所述第一插槽中。
优选地，所述绝缘片的顶端形成“凸”字形结构，所述“凸”字形结构的凸部插在所述第一插槽中。
优选地，所述绝缘片的下端插在所述本体上设置的第二插槽中。
优选地，所述本体在与所述绝缘片下端的两个角部对应的位置分别设置有所述第二插槽，所述绝缘片的两个所述角部分别对应插在所述第二插槽中。
优选地，所述本体的背离所述微波炉腔室的一侧固定有波导管，所述波导管上设置有能够与所述本体贴合固定的固定部。
优选地，所述波导管在所述波导口的上方和下方分别设置有与所述本体焊接的所述固定部。
优选地，在所述波导口的上方的所述固定部分别与所述开口的上方部位和下方部位焊接。
优选地，所述本体的与所述固定部固定的部位朝向所述波导管的方向突出。
根据本发明的另一方面，还提供一种微波炉，所述微波炉包括如上所述的微波炉组件。
本发明提供的微波炉组件及微波炉中，通过设置导流结构覆盖在绝缘片的顶端，导流结构可引导波导口顶部的油液离开绝缘片的顶部，使得油液从绝缘片的朝向微波炉腔室的一侧流下，从而可防止油液进入到绝缘片与本体之间的间隙，由此避免或减轻油液聚集在所述间隙中在微波作用下碳化而产生打火现象。
附图说明
图1是为现有技术中微波炉上设置有波导口的部位的结构示意图；
图2为图1所示的设置有波导口的部位的剖视图(波导口上设置有云母片)；
图3为图2中A处放大图；
图4为本发明的一个实施方式中微波炉设置有波导口的部位的结构示意图；
图5为图4中所示的设置有波导口的部位的剖视图；
图6为本发明的一个实施方式中绝缘片的结构示意图；
图7为绝缘片设置在波导口上的结构示意图；
图8为绝缘片设置在波导口上的剖视图；
图9为图8中B处放大图。
附图标记说明
1’-本体；11’-波导口；2’-云母片；3’-波导管；
1-本体；11-波导口；12-开口；13-弯折部；14-第一插槽；15-第二插槽；2-云母片；21-凸部；3-波导管；31-固定部。
具体实施方式
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
本发明提供一种微波炉组件，该微波炉组件包括具有波导口11的本体1，该本体1用于形成微波炉腔室，本体1的用于朝向微波炉腔室的一侧固定有封堵所述波导口11且微波能够穿过的绝缘片2，其中，本体1上设置有覆盖所述绝缘片2的顶端的导流结构，所述导流结构能够引导绝缘片2上方的流体流向所述绝缘片2的朝向所述微波炉腔室的一侧。
在本技术领域，所述绝缘片2通常采用云母片，但并不限于云母片，也可采用能够使得微波通过且具有绝缘作用的其它合适的材质。
本发明提供的微波炉组件中，通过设置导流结构覆盖在绝缘片2的顶端，导流结构可引导波导口11顶部的流体(主要为烹饪食物时产生的油液)离开绝缘片2的顶部，使得油液从绝缘片2的朝向微波炉腔室的一侧流下，从而可防止油液进入到绝缘片2与本体1之间的间隙，由此避免油液聚集在所述间隙中在微波作用下碳化而产生打火现象。
下面根据本发明的具体实施方式并结合附图对本发明的技术方案进行详细说明。
如图4-图5所示(可结合图8和图9)，所述本体1上形成有横向延伸的开口12，所述导流结构为开口12上方的边缘朝向微波炉腔室的方向弯折形成有第一插槽14的弯折部13，绝缘片2的顶端插在所述第一插槽14中。
本实施方式中，优选地，如图6和图7所示，绝缘片2的顶端形成“凸”字形结构，所述“凸”字形结构的凸部21插在第一插槽14中。
通过将绝缘片2的顶端插在第一插槽14中，弯折部13覆盖在绝缘片2 的顶端能够对波导口11上方的油液起到导流的作用，避免油液从绝缘片2的顶端流入绝缘片2与本体1之间的间隙中。
需要理解的是，所述导流结构并不限于本实施方式中在本体1上设置开口并设置弯折部13的结构形式，例如，还可在本体1上固定覆盖在绝缘片2顶端且向下倾斜的结构，该倾斜结构也可起到导流的作用。当然，本实施方式中的导流结构设置为在开口12处设置弯折部13的结构形式是为使得工艺简单且绝缘片2安装方便的优选实施方式。
为使得绝缘片2固定在波导口11上，除将其上端插在第一插槽14中外，还需要对其进一步安装固定。本实施方式中，优选地，将绝缘片2的下端插在本体1上形成的第二插槽15中。
如图7所示，本体1在与绝缘片2下端的两个角部对应的位置分别设置有第二插槽15，绝缘片2的两个所述角部分别对应插在第二插槽15中。其中，所述第二插槽15是通过本体1上设置的两个类似于倒角的结构，该类似于倒角的结构分别形成能够承接绝缘片2下端的两个角部的第二插槽15。
当然，绝缘片2并不限于将下端插在第二插槽15中的安装方式，也可采用其它合适的方式固定，例如，将绝缘片2通过紧固件固定在本体1上，或者通过卡接的方式固定在本体1上。另外，第二插槽15也并不限于承接绝缘片2的下端的两个角部，也可设置为承接绝缘片2的整个下端。
在本体1的背离微波炉腔室的一侧通常固定有波导管3，将磁控管产生的微波通过波导管3传输到波导口11，为将波导管3固定在本体1上，在波导管3上设置有能够与本体1贴合固定的固定部31。
固定部31具体可通过焊接的方式固定在本体1上。优选地，波导管3在波导口11的上方和下方分别设置有与本体1焊接的固定部31。如图8中波导口11上方的C和D处的焊点以及波导口11下方的E处的焊点。
考虑到在本体1上设置横向延伸的细长的开口12，微波可能从该开口 12泄露，而且由于开口12会导致本体1的强度降低，在装配磁控管后，因磁控管的重量会使得本体1产生变形，本实施方式中采用波导管3的固定部31与本体1的焊接来解决该问题。
优选地，在波导口11的上方的固定部31分别与开口12的上方部位和下方部位焊接，如在图8和图9中，开口上方的C处和开口下方的D处分别设置有焊点。通过固定部31在开口12的上方部位和下方部位分别焊接，可防止微波从开口12以及固定部31与本体1之间的间隙泄露，也就是说，固定部31阻止了开口12处微波的泄露，另外，通过将固定部31增强了开口12周围的强度，能够有效防止本体1的变形。
此外，本实施方式中，本体1的与固定部31固定的部位朝向波导管3的方向突出。这样，可使得固定部31很好地与本体1贴合，并利于焊接牢固。
根据本发明的另一方面，还提供一种微波炉，该微波炉包括如上所述的微波炉组件。
本发明提供的微波炉，能够有效防止油液聚集在波导口处碳化而产生打火的问题，从而有效提高了微波炉的质量。
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于此。在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，包括各个具体技术特征以任何合适的方式进行组合。为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。但这些简单变型和组合同样应当视为本发明所公开的内容，均属于本发明的保护范围。

Claims (10)

  1. 一种微波炉组件，包括具有波导口(11)的本体(1)，所述本体(1)的用于朝向微波炉腔室的一侧固定有封堵所述波导口(11)且微波能够穿过的绝缘片(2)，其特征在于，所述本体(1)上设置有覆盖所述绝缘片(2)的顶端的导流结构，所述导流结构能够引导所述绝缘片(2)上方的流体流向所述绝缘片(2)的朝向所述微波炉腔室的一侧。
  2. 根据权利要求1所述的微波炉组件，其特征在于，所述本体(1)上形成有横向延伸的开口(12)，所述导流结构为所述开口(12)上方的边缘朝向所述微波炉腔室的方向弯折形成有第一插槽(14)的弯折部(13)，所述绝缘片(2)的顶端插在所述第一插槽(14)中。
  3. 根据权利要求2所述的微波炉组件，其特征在于，所述绝缘片(2)的顶端形成“凸”字形结构，所述“凸”字形结构的凸部(21)插在所述第一插槽(14)中。
  4. 根据权利要求2所述的微波炉组件，其特征在于，所述绝缘片(2)的下端插在所述本体(1)上设置的第二插槽(15)中。
  5. 根据权利要求4所述的微波炉组件，其特征在于，所述本体(1)在与所述绝缘片(2)下端的两个角部对应的位置分别设置有所述第二插槽(15)，所述绝缘片(2)的两个所述角部分别对应插在所述第二插槽(15)中。
  6. 根据权利要求2-5中任意一项所述的微波炉组件，其特征在于，所述本体(1)的背离所述微波炉腔室的一侧固定有波导管(3)，所述波导管 (3)上设置有能够与所述本体(1)贴合固定的固定部(31)。
  7. 根据权利要求6所述的微波炉组件，其特征在于，所述波导管(3)在所述波导口(11)的上方和下方分别设置有与所述本体(1)焊接的所述固定部(31)。
  8. 根据权利要求6所述的微波炉组件，其特征在于，在所述波导口(11)的上方的所述固定部(31)分别与所述开口(12)的上方部位和下方部位焊接。
  9. 根据权利要求6所述的微波炉组件，其特征在于，所述本体(1)的与所述固定部(31)固定的部位朝向所述波导管(3)的方向突出。
  10. 一种微波炉，其特征在于，所述微波炉包括根据权利要求1-9中任意一项所述的微波炉组件。
PCT/CN2017/119510 2017-07-21 2017-12-28 微波炉组件及微波炉 WO2019015259A1 (zh)

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