CN110115498A - A kind of device and method of stereoscopic microwave heating electric rice cooker - Google Patents

A kind of device and method of stereoscopic microwave heating electric rice cooker Download PDF

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Publication number
CN110115498A
CN110115498A CN201811544208.4A CN201811544208A CN110115498A CN 110115498 A CN110115498 A CN 110115498A CN 201811544208 A CN201811544208 A CN 201811544208A CN 110115498 A CN110115498 A CN 110115498A
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CN
China
Prior art keywords
microwave
waveguide
pot
heating
rice cooker
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Pending
Application number
CN201811544208.4A
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Chinese (zh)
Inventor
朱铧丞
黄卡玛
杨阳
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Sichuan University
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Sichuan University
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Publication date
Application filed by Sichuan University filed Critical Sichuan University
Priority to CN201811544208.4A priority Critical patent/CN110115498A/en
Publication of CN110115498A publication Critical patent/CN110115498A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/002Construction of cooking-vessels ; Methods or processes of manufacturing specially adapted for cooking-vessels
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00Parts, details or accessories of cooking-vessels
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00Parts, details or accessories of cooking-vessels
    • A47J36/24Warming devices

Abstract

The present invention relates to field of microwave heating, are a kind of device and methods of stereoscopic microwave heating electric rice cooker, and solving the problems, such as that existing electric cooker is uneven using microwave heating, heated material does not absorb microwave can not heat.The present invention includes the microwave feed-in source of special designing, waveguide, and waveguide feed-in source connects waveguide entrance, can absorb the pot body of microwave energy;The waveguide is encircling type waveguide, and the encircling type waveguide is provided at least three close to the broadside of pot body and cracks;Pot body setting is encircled in the waveguide.The invention discloses the Novel rice cookers that one kind can carry out microwave heating and medium conduction heating simultaneously, and heating efficiency is high, uniformity of temperature profile can also heat the food materials for not absorbing microwave;Solving the problems, such as that electric cooker is uneven using microwave heating, heated material does not absorb microwave in the prior art can not heat.

Description

A kind of device and method of stereoscopic microwave heating electric rice cooker
Technical field
The present invention relates to field of microwave heating, particularly relate to a kind of devices and methods therefor of stereoscopic microwave heating electric rice cooker.
Background technique
With the rapid development of modern science and technology, microwave energy has been widely used as a kind of novel high efficiency, clean energy resource In every field such as industrial production, daily lifes.Microwave heating has the characteristics that " body heating ", " body heating " be it is a kind of with added The selective heating method that hot substance directly acts on obtains the side of temperature rise instead of substance in traditional heating by medium heat transfer Method saves heat and conducts the required time in the medium, reduces the energy consumption in transmitting medium, has efficient, section The characteristics of energy.
In order to solve the technical problem, in the application of the prior art, improved by way of improving heating cavity structure Heating uniformity, but be all the problem of directly heating heated material, will cause non-uniform temperature, while also having material to be heated The problem of body wave-sucking performance is poor, can not heat;It is there are heating object microwave absorbability is low, i.e. the low problem of heating efficiency.
Urgently there is a kind of Novel heating method that can be solved the above problems.
Summary of the invention
The present invention proposes a kind of device and method of stereoscopic microwave heating electric rice cooker, solves microwave heating in the prior art The problem of uneven and low efficiency.
The technical scheme of the present invention is realized as follows: a kind of device of stereoscopic microwave heating electric rice cooker, including microwave feedback Enter source, waveguide, waveguide feed-in source connects waveguide entrance, can absorb the pot body of microwave energy;The waveguide is encircling type wave It leads, the encircling type waveguide is provided at least three close to the broadside of pot body and cracks;Pot body setting is encircled in the waveguide.
Further, the pot body of the absorbable microwave energy is specifically mixing material;The dielectric of the mixing material Constant are as follows:
Wherein: ε (i) represents the total mixing dielectric constant of different materials.εiRepresent the dielectric constant of different materials, viIt represents Volume fraction shared by different materials.
Preferably, the mixing material is medical stone and silicon carbide/graphite/titanium valve;The ratio of the mixing material are as follows: wheat Meal stone: silicon carbide=19:1, medical stone: graphite=9:1, medical stone: titanium valve=4:1.
Preferably, the quantity of the encircling type waveguide cracked is 6, and described six crack and are uniformly arranged.
Preferably, described crack is set to the wide wall standing wave anti-node location of Wave guide system;Width crack with apart from wave
Guiding systems present mouth distance increase and it is broadening.
A kind of method of stereoscopic microwave heating electric rice cooker, it is characterised in that: the following steps are included:
A, encircling type waveguide is passed to by the microwave that microwave port is transmitted;
B, encircling type waveguide is cracked in broadside, and the microwave into disc waveguide is transmitted in microwave feed-in source can be by the seam in waveguide Gap enters cylindrical pot body;
C, heated material is placed in portion in the cavity, and heated material and pot body absorb microwave simultaneously, and pot body absorbs microwave Heat temperature raising heats heated material afterwards;
D, being uniformly distributed for energy is realized by the microwave radiation of multiport.
A kind of devices and methods therefor of stereoscopic microwave electric cooker disclosed by the invention, microwave can be carried out simultaneously by disclosing one kind The Novel rice cooker of heating and medium conduction heating, is a kind of heating method of microwave encircling type, while pot body can also partially inhale The heating method of wave can not only promote the uniformity of heating, still can also can add when heated material does not absorb microwave Heat, heating efficiency are high;Solve in the prior art that microwave heating uniformity is poor, the low problem of microwave utilization rate.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art To obtain other drawings based on these drawings.
Fig. 1: the structural schematic diagram of invention;
Fig. 2: the S. E. A. of the silicon carbide of different proportion, graphite, titanium valve is separately added into medical stone;
Fig. 3: electric cooker internal electric field distribution map;
Wherein: 1, waveguide;2, waveguide enclosure;3, it cracks;4, heating object;5, air layer;6, glassy layer;7, electromagnetic wave enters Penetrate port;8, metallic walls.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
A kind of device of stereoscopic microwave heating electric rice cooker, including microwave feed-in source, waveguide 1,1 feed-in source of the waveguide connection 1 entrance of waveguide can absorb the pot body of microwave energy;The waveguide 1 is encircling type waveguide 1, and the encircling type waveguide 1 is close to pot body Broadside be provided at least three and crack 3;Be evenly distributed on 300 ° of circle, crack 3 as feedback mouths between interact compared with Small, the 3 pairs of heating uniformities that crack of different numbers have a certain impact, and heat more uniform when cracking more than 3, but are more than certain open 3 number of seam will cause the reduction of microwave energy utilization rate, carries out heating by multiple 3 feed-in microwaves that crack and realizes heated material 4 Heating is encircled, heating efficiency is improved;Pot body setting is encircled in the waveguide 1.
Further, the pot body of the absorbable microwave energy is specifically mixing material, the absorption microwave energy Loss angle tangent 0-0.2;The dielectric constant of the mixing material are as follows:
Wherein: e (i) represents the total mixing dielectric constant of different materials.εiRepresent the dielectric constant of different materials, viIt represents Volume fraction shared by different materials.
It is described mixed known to the S. E. A. for being separately added into the silicon carbide of different proportion, graphite, titanium valve in Fig. 2 medical stone Condensation material is medical stone and silicon carbide/graphite/titanium valve;The ratio of the mixing material are as follows: medical stone: silicon carbide=19:1, wheat Meal stone: graphite=9:1, medical stone: titanium valve=4:1.
Preferably, 3 quantity of cracking of the encircling type waveguide 1 is 6, and described six crack and 3 are uniformly arranged.
Described crack 3 is set to the wide wall standing wave anti-node location of 1 system of waveguide;3 width that crack are presented with apart from 1 system of waveguide Mouthful distance increase and it is broadening;.
When electromagnetic wave transmits in waveguide 1, crack after 3 by first, general power decaying -6dB, and so on, coupling Close into it is each crack 3 energy be total work energy -6dB, the power of decaying 3 is radiated pot body by cracking, realizes each Crack 3 the uniform radiation of electromagnetic wave energy.Certainly, different according to the distance for presenting mouth apart from rectangular waveguide 1, crack 3 opened it is big It is small be it is different, only by change crack 3 size, can just make respectively to crack 3 the uniform radiation of electromagnetic wave energy.
Glassy layer 6 and air layer 5 are additionally provided with before the waveguide 1 and pot body.Pass through addition glassy layer 6 and air layer 5 The homogeneous radiation of microwave energy can be achieved.
A kind of method of stereoscopic microwave heating electric rice cooker, it is characterised in that: the following steps are included: A, being passed by microwave port The microwave passed is passed to encircling type waveguide 1;B, encircling type waveguide 1 cracks 3 in broadside, and microwave feed-in source is transmitted into disc waveguide 1 Microwave can enter cylindrical pot body by the gap 3 in waveguide;C, heated material 4, heating object 4 are placed by portion in the cavity Matter and pot body absorb microwave simultaneously, and heat temperature raising heats heated material after pot body absorbs microwave.
The omnibearing stereo heating for realizing 4 matter of heating object, facilitates the further promotion of uniformity, and the heating later period is added Hot substance, which can produce, is charred sense, can also heat to the substance for not absorbing microwave.
Certain 4 matter of heating object is placed by portion in the cavity, the temperature liter of water after observation microwave heating for a period of time High situation, and the s11 parameter of observation microwave feed-in port, calculate the utilization rate of microwave energy;
By the S11=-16.284dB of 3 port of symmetry slot, the utilization rate of microwave energy can achieve 97.6%.
It is evenly distributed as seen from Figure 3 in electric cooker internal electric field, being evenly heated for 4 matter of heating object may be implemented.
A kind of devices and methods therefor of stereoscopic microwave electric cooker disclosed by the invention, microwave can be carried out simultaneously by disclosing one kind The Novel rice cooker of heating and medium conduction heating, heating efficiency are high;It solves electric cooker in the prior art and utilizes microwave heating Unevenly, heated material does not absorb the problem of microwave can not heat.
Certainly, without deviating from the spirit and substance of the present invention, those skilled in the art should can be with Various corresponding changes and modifications are made according to the present invention, but these corresponding changes and modifications all should belong to appended by the present invention Scope of protection of the claims.

Claims (6)

1. a kind of device of stereoscopic microwave heating electric rice cooker, including microwave feed-in source, waveguide, waveguide feed-in source connects waveguide Entrance, it is characterised in that: the pot body of absorbable microwave energy;The waveguide is encircling type waveguide, and the encircling type waveguide is close The broadside of pot body is provided at least three and cracks;Pot body setting is encircled in the waveguide.
2. a kind of device of stereoscopic microwave heating electric rice cooker according to claim 1, it is characterised in that: it is described can absorb it is micro- The pot body of wave energy is specifically mixing material;The dielectric constant of the mixing material are as follows:
Wherein: ε (i) represents the total mixing dielectric constant of different materials;εiRepresent the dielectric constant of different materials, viRepresent difference Volume fraction shared by material.
3. a kind of device of stereoscopic microwave heating electric rice cooker according to claim 2, it is characterised in that: the mixing material For medical stone and silicon carbide/graphite/titanium valve;The ratio of the mixing material are as follows: medical stone: silicon carbide=19:1, medical stone: stone Ink=9:1, medical stone: titanium valve=4:1.
4. according to claim 1 --- a kind of device of stereoscopic microwave heating electric rice cooker, feature described in any one of 3 exist It is 6 in: the quantity of the encircling type waveguide cracked, described six crack and are uniformly arranged.
5. according to a kind of device of stereoscopic microwave heating electric rice cooker as claimed in claim 4, it is characterised in that: described crack is set to The wide wall standing wave anti-node location of Wave guide system;The width that cracks is broadening with the distance increase apart from Wave guide system feedback mouth.
6. a kind of method of stereoscopic microwave heating electric rice cooker, it is characterised in that: the following steps are included:
A, encircling type waveguide is passed to by the microwave that microwave port is transmitted;
B, encircling type waveguide is cracked in broadside, microwave feed-in source transmit into disc waveguide microwave can by the gap in waveguide into Enter cylindrical pot body;
C, heated material is placed in portion in the cavity, and heated material and pot body absorb microwave simultaneously, and pot body adds after absorbing microwave Heated material is heated in heat heating;
D, being uniformly distributed for energy is realized by the microwave radiation of multiport.
CN201811544208.4A 2018-12-17 2018-12-17 A kind of device and method of stereoscopic microwave heating electric rice cooker Pending CN110115498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811544208.4A CN110115498A (en) 2018-12-17 2018-12-17 A kind of device and method of stereoscopic microwave heating electric rice cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811544208.4A CN110115498A (en) 2018-12-17 2018-12-17 A kind of device and method of stereoscopic microwave heating electric rice cooker

Publications (1)

Publication Number Publication Date
CN110115498A true CN110115498A (en) 2019-08-13

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CN201811544208.4A Pending CN110115498A (en) 2018-12-17 2018-12-17 A kind of device and method of stereoscopic microwave heating electric rice cooker

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1751635A (en) * 2005-10-26 2006-03-29 张敬胜 Heating inner container type micro-wave cooking pot
CN102860745A (en) * 2012-09-04 2013-01-09 广东格兰仕微波炉电器制造有限公司 Semiconductor microwave electric cooker
CN103974480A (en) * 2013-02-05 2014-08-06 松下电器产业株式会社 Microwave heating device
CN104879801A (en) * 2015-06-08 2015-09-02 广东美的厨房电器制造有限公司 Microwave rice cooker
CN106225029A (en) * 2016-08-25 2016-12-14 陈鹏 A kind of solid state microwave power source and use the solid state microwave stove in this solid state microwave power source
CN108040385A (en) * 2017-12-19 2018-05-15 陕西青朗万城环保科技有限公司 A kind of microwave heating kettle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1751635A (en) * 2005-10-26 2006-03-29 张敬胜 Heating inner container type micro-wave cooking pot
CN102860745A (en) * 2012-09-04 2013-01-09 广东格兰仕微波炉电器制造有限公司 Semiconductor microwave electric cooker
CN103974480A (en) * 2013-02-05 2014-08-06 松下电器产业株式会社 Microwave heating device
CN104879801A (en) * 2015-06-08 2015-09-02 广东美的厨房电器制造有限公司 Microwave rice cooker
CN106225029A (en) * 2016-08-25 2016-12-14 陈鹏 A kind of solid state microwave power source and use the solid state microwave stove in this solid state microwave power source
CN108040385A (en) * 2017-12-19 2018-05-15 陕西青朗万城环保科技有限公司 A kind of microwave heating kettle

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