CN102448208A - Microwave heating energy-feedback antenna and manufacturing method thereof - Google Patents
Microwave heating energy-feedback antenna and manufacturing method thereof Download PDFInfo
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- CN102448208A CN102448208A CN2010102992145A CN201010299214A CN102448208A CN 102448208 A CN102448208 A CN 102448208A CN 2010102992145 A CN2010102992145 A CN 2010102992145A CN 201010299214 A CN201010299214 A CN 201010299214A CN 102448208 A CN102448208 A CN 102448208A
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Abstract
The invention discloses a microwave heating energy-feedback antenna and a manufacturing method thereof. The microwave heating energy-feedback antenna for connecting with a waveguide comprises a waveguide flange that is in connection with a port of the waveguide, and a resonance chamber integral in shape of a flat, wherein a layer of sealing mediums is filled into the resonance chamber body; a hole array for radiating microwave out of the resonance chamber is arranged on the wall of the resonance chamber, wherein the waveguide flange is placed on one corner of the resonance chamber; and a motivation angle between the waveguide and the resonance chamber is of 45 degrees. By the microwave heating energy-feedback antenna, the microwave can be transmitted at 45 degrees from the side to the flat shaped resonance chamber by the waveguide flange through the waveguide, and a TMmno mode standing wave is formed by the microwave in the layer of sealing mediums of the resonance chamber, and radiated from the hole array, as a result, the power output efficiency and the coupling efficiency of the microwave can be raised; the heating uniformity can be improved; and discharging can be restrained.
Description
Technical field
The present invention relates to the industrial microwave technical field of heating, specifically, is about microwave heating energy-feeding antenna and preparation method thereof.
Background technology
In the microwave energy applied technical field, two main frequency ranges that the international microwave energy association (IMPI) that is being widely used is recommended, i.e. 915MHz and 2450MHz frequency range.
And Freeze Drying Technique is because it preserves the heat-sensitive ingredients and the bioactive advantage of material, and at food, medicine and biological products industry are widely used.But the freeze drying of using traditional heat source has rate of drying low, and the time is long, and power consumption is big, the shortcoming that cost is high.Microwave heating belongs to dielectric heating, and the microwave vacuum freeze dry technology is the product that microwave technology combines with Vacuum Freezing & Drying Technology, it be with microwave as thermal source, avoided the shortcoming of traditional heating mode, shorten drying time greatly, cut down the consumption of energy.But the problem that has heating uniformity and low pressure discharge.Electric field strength is high in the coupling aperture zone for the coupled modes of common resonant cavity, easily sparking discharge and material local overheating.Therefore, the uniformity when seeking a kind of high-power energy regenerative and both can guarantee to heat, can improve again simultaneously the microwave coupling efficiency with prevent the microwave heating energy-feeding antenna that discharges have important academicly with practicality on value and significance.
Summary of the invention
Technical problem to be solved by this invention is; Electric field strength is high in the coupling aperture zone to the coupled modes of the resonant cavity of existing microwave heating energy-feeding antenna; The easy deficiency of sparking discharge and material local overheating, provide a kind of high-power energy regenerative not only can guarantee to heat the time uniformity, but also the microwave heating energy-feeding antenna that can improve the microwave coupling efficiency and prevent to discharge.
To achieve these goals, microwave heating energy-feeding antenna of the present invention is used for being connected with waveguide, comprises
The waveguide flange that is connected with the interface of this waveguide; And
The flat resonant cavity of whole one-tenth be filled with the sealing medium layer in the cavity of this resonant cavity, and the chamber wall of this resonant cavity is provided with the hole array that microwave radiation is gone out this resonant cavity;
Wherein, this waveguide flange is positioned on a jiao of this resonant cavity, and the excitation angle between this waveguide and this resonant cavity is 45 °.
Above-mentioned microwave heating energy-feeding antenna; Wherein, This resonant cavity comprises web plate framework, the first side web plate and the second side web plate; This first side web plate, the second side web plate surround the cavity that forms this resonant cavity mutually with this web plate framework, and the sealing dielectric layer is tabular and is embedded in this web plate framework and fills up this cavity.
Above-mentioned microwave heating energy-feeding antenna; Wherein, This waveguide flange comprises forward flange, counter flange, first flange and second flange; This second flange of first flange and this all is connected and lays respectively at the outside of this first side web plate and the second side web plate with this web plate framework, this counter flange top is connected with this forward flange, first flange of bottom and this is connected with second flange.
Above-mentioned microwave heating energy-feeding antenna wherein, between this forward flange and this counter flange, between this counter flange and this first flange, second flange, all is provided with seal between this first flange and this second flange.
Above-mentioned microwave heating energy-feeding antenna, wherein, this resonant cavity adopts TM
MnoMould or TE
MonMould, this TM
MnoMould or TE
MonMould is made up of the capable basic field pattern volume elements of m row * n, and wherein, m, n are integer, and this basic field pattern volume elements is of a size of a
0* a
0* h, a
0Be TM
110Field pattern body unit size, h is between 10～20mm.
Above-mentioned microwave heating energy-feeding antenna, wherein, this hole array is positioned at the central authorities of this chamber wall, and the diameter in each hole in this hole array is 20～25mm.
Above-mentioned microwave heating energy-feeding antenna, wherein, this hole array be M capable * N row, wherein, M=(1～2) * m, N=(1～2) * n, M, N are integer.
Above-mentioned microwave heating energy-feeding antenna, wherein, in this hole array, the spacing up and down between the Kong Yukong is (1/3～1/2) * a
0
Further, the present invention also provides the manufacture method of above-mentioned microwave heating energy-feeding antenna, and it comprises the steps:
S100: waveguide flange is set according to standard waveguide;
S200: make resonant cavity: at first design cavity modes, confirm the hole array on the chamber wall of size and resonant cavity of resonant cavity according to this cavity modes then, and in the cavity of resonant cavity, fill full sealing medium;
S300: the design waveguide imports the mode and the excitation angle of resonant cavity, connects waveguide flange on a jiao of resonant cavity according to this mode and excitation angle that imports resonant cavity.
The manufacture method of above-mentioned microwave heating energy-feeding antenna wherein, in this step S200, comprises the steps again,
S210: the web plate framework is set;
S220: the first side web plate and the second side web plate that have the hole array on it are set;
S230: flat sealing medium layer is set;
S240: the sealing dielectric layer is embedded in this web plate framework, and this first side web plate and the chamber wall of this second side web plate with the formation resonant cavity is set respectively in the forward and backward both sides of sealing dielectric layer.
Beneficial functional of the present invention is that microwave from the side imports flat resonant cavity through waveguide flange with 45 ° of excitation angle from waveguide, and vibration forms TM in the sealing medium layer of resonant cavity
MnoThe mould standing wave radiate from the array of hole again, thereby can improve microwave power delivery efficiency and coupling efficiency, and the uniformity of heating, and can suppress discharge.
Describe the present invention below in conjunction with accompanying drawing and specific embodiment, but not as to qualification of the present invention.
Description of drawings
Fig. 1 is the stereogram of microwave heating energy-feeding antenna of the present invention;
Fig. 2 is the front view of microwave heating energy-feeding antenna of the present invention;
Fig. 3 is the partial sectional view of microwave heating energy-feeding antenna of the present invention;
Fig. 4 is the A-A cutaway view among Fig. 2;
Fig. 5 is the manufacture method flow chart of microwave heating energy-feeding antenna of the present invention;
Fig. 6 is the flow chart of the making resonant cavity among Fig. 5.
Wherein, Reference numeral
100-microwave heating energy-feeding antenna
The 10-waveguide flange
The 11-forward flange
The 111-connecting hole
The 12-counter flange
First flange of 13-
Second flange of 14-
The 20-resonant cavity
21-web plate framework
The 22-first side web plate
The 23-second side web plate
30-sealing medium layer
40-hole array
The 41-hole
Embodiment
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention being carried out detailed description, further understanding the object of the invention, scheme and effect, but is not the restriction as accompanying claims protection range of the present invention.
Microwave heating energy-feeding antenna of the present invention is used for being connected with waveguide, with the microwave radiation ability.
As shown in Figure 1; Microwave heating energy-feeding antenna 100 comprises waveguide flange 10, resonant cavity 20, be arranged on and fill up the sealing medium layer of whole cavity in the cavity of resonant cavity 20 and be arranged on the hole array 40 that microwave radiation is gone out resonant cavity on the chamber wall of resonant cavity 20; Wherein, waveguide flange 10 is positioned on a jiao of resonant cavity 20, and the excitation angle between waveguide and the resonant cavity is 45 °; When being square shape like resonant cavity 20, waveguide flange 10 is positioned on the diagonal of resonant cavity 20.
In conjunction with consulting Fig. 2 and Fig. 3, waveguide flange 10 is used for being connected with the interface (not shown) of waveguide.In the present embodiment; Standard waveguide is adopted in waveguide; The interface of waveguide has square flange, is connected with waveguide in order to be beneficial to the microwave heating energy-feeding antenna, and waveguide flange 10 has and the corresponding forward flange 11 of this square flange; Have connecting hole 111 on the forward flange 11, be connected through bolt between the interface of this forward flange 11 and waveguide.Waveguide flange 10 also comprises counter flange 12, first flange 13 and second flange 14, and these counter flange 12 1 ends adopt bolt to be connected with forward flange 11, and the other end also adopts bolt to be connected with first flange 13 with second flange 14.
Further, in order to guarantee the sealing of waveguide flange 10, between forward flange 11 and the counter flange 12, between counter flange 12 and first flange 13, second flange 14, all be provided with seal between first flange 13 and second flange 14.
In conjunction with consulting Fig. 4, resonant cavity 20 whole one-tenth tabulars.This resonant cavity 20 comprises web plate framework 21, the first side web plate 22 and the second side web plate 23; The first side web plate 22, the second side web plate 23 and web plate framework 21 surround forming the cavity of resonant cavity 20 mutually, and sealing medium layer 30 is tabular and is embedded in and fills up this cavity in the web plate framework 21.That is to say that the first side web plate 22 and the second side web plate 23 lay respectively at the chamber wall of the forward and backward both sides formation resonant cavity 20 of sealing medium layer 30.In order to make web plate framework 21, the first side web plate 22 and the second side web plate 23 couple together the formation cavity body structure, the first side web plate 22 and the second side web plate 23 are positioned at the upper and lower both sides of web plate framework 21, and are connected with web plate framework 21 through bolt.First flange 13 and second flange 14 all are connected and lay respectively at the outside of the first side web plate 22 and the second side web plate 23 with web plate framework 21.Hole array 40 is formed on the first side web plate 22 and the second side web plate 23.
Above-mentioned sealing medium layer 30 can be by polytetrafluoroethylene, quartz glass or Al
2O
3Pottery is processed.
In the present embodiment, resonant cavity 20 adopts TM
MnoMould or TE
MonMould, this TM
MnoMould or TE
MonMould is made up of the capable basic field pattern volume elements of m row * n, and wherein, m, n are integer, and this basic field pattern volume elements is of a size of a0 * a0 * h, a
0Be TM
110Field pattern body unit size, h is the thickness of sealing medium layer 30.Hole array 40 is positioned at the central authorities of the chamber wall of resonant cavity 20, and the diameter in each hole 41 in this hole array is 20～25mm, this hole array 40 be M capable * the N row; Wherein, M=(1～2) * m, N=(1～2) * n, M, N are integer; In this hole array 40, the spacing up and down between the Kong Yukong (is the L among Fig. 2
1And L
2) be (1/3～1/2) * a
0In the present embodiment; Waveguide is standard waveguide (operating frequency according to microwave source designs for 2450MHz), imports on the angle from the side, and importing angle [alpha] is 45 °; Resonant cavity 20 is of a size of 519 * 519 * 10mm; The diameter in hole 41 is 30mm, and hole array 40 comprises 11 * 11 holes, and hole 41 spacing up and down is 30.54mm.
The manufacture method of microwave heating energy-feeding antenna of the present invention comprises the steps:
S100: waveguide flange is set according to standard waveguide;
S200: make resonant cavity: at first design cavity modes, confirm the hole array on the chamber wall of size and resonant cavity of resonant cavity according to this cavity modes then, and in the cavity of resonant cavity, fill full sealing medium;
S300: the design waveguide imports the mode and the excitation angle of resonant cavity, connects waveguide flange on a jiao of resonant cavity according to this mode and excitation angle that imports resonant cavity.
Wherein, in above-mentioned step S200, comprise the steps again,
S210: the web plate framework is set;
S220: the first side web plate and the second side web plate that have the hole array on it are set;
S230: flat sealing medium layer is set;
S240: the sealing dielectric layer is embedded in this web plate framework, and this first side web plate and the chamber wall of this second side web plate with the formation resonant cavity is set respectively in the forward and backward both sides of sealing dielectric layer.
Microwave heating energy-feeding antenna 10 of the present invention calculates through Electromagnetic Simulation; The input vswr that obtains antenna input is S11=-11dB; Be SWR=1.9; This and actual meeting very much of measuring of lattice gauge, this makes the ideal value of coupling efficiency of waveguide and antenna more than 90%, its power good uniformity.
The course of work of microwave heating energy-feeding antenna of the present invention is: microwave imports resonant cavity from standard waveguide into through 45 ° of excitation angle from the side, in resonant cavity with TM
MnoMould forms standing wave, and from the array of hole, radiate.
To sum up can find out: energy-feeding antenna of the present invention is a porous flat plate formula structure, and belongs to the secondary energy regenerative, and microwave imports resonant cavity into through waveguide earlier, in resonant cavity, passes through the heating chamber of hole array feed-in firing equipment after the redistribution again.Guarantee the uniformity of antenna lower zone like this, that is, guaranteed the uniformity on the cross section.After drying device or heater adopt this kind porous flat plate formula structure energy-feeding antenna, have higher microwave power delivery efficiency than the microwave energy-feeding antenna in the existing microwave heating equipment, and can improve the uniformity of microwave heating.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. a microwave heating energy-feeding antenna is used for being connected with waveguide, it is characterized in that, comprises
The waveguide flange that is connected with the interface of this waveguide; And
The flat resonant cavity of whole one-tenth be filled with the sealing medium layer in the cavity of this resonant cavity, and the chamber wall of this resonant cavity is provided with the hole array that microwave radiation is gone out this resonant cavity;
Wherein, this waveguide flange is positioned on a jiao of this resonant cavity, and the excitation angle between this waveguide and this resonant cavity is 45 °.
2. microwave heating energy-feeding antenna according to claim 1; It is characterized in that; This resonant cavity comprises web plate framework, the first side web plate and the second side web plate; This first side web plate, the second side web plate surround the cavity that forms this resonant cavity mutually with this web plate framework, and the sealing dielectric layer is tabular and is embedded in this web plate framework and fills up this cavity.
3. microwave heating energy-feeding antenna according to claim 2; It is characterized in that; This waveguide flange comprises forward flange, counter flange, first flange and second flange; This second flange of first flange and this all is connected and lays respectively at the outside of this first side web plate and the second side web plate with this web plate framework, this counter flange top is connected with this forward flange, first flange of bottom and this is connected with second flange.
4. microwave heating energy-feeding antenna according to claim 3 is characterized in that, between this forward flange and this counter flange, between this counter flange and this first flange, second flange, all is provided with seal between this first flange and this second flange.
5. according to any described microwave heating energy-feeding antenna among the claim 1-4, it is characterized in that this resonant cavity adopts TM
MnoMould or TE
MonMould, this TM
MnoMould or TE
MonMould is made up of the capable basic field pattern volume elements of m row * n, and wherein, m, n are integer, and this basic field pattern volume elements is of a size of a
0* a
0* h, a
0Be TM
110Field pattern body unit size, h is between 10～20mm.
6. microwave heating energy-feeding antenna according to claim 5 is characterized in that this hole array is positioned at the central authorities of this chamber wall, and the diameter in each hole in this hole array is 20～25mm.
7. microwave heating energy-feeding antenna according to claim 6 is characterized in that, this hole array be M capable * N row, wherein, M=(1～2) * m, N=(1～2) * n, M, N are integer.
8. microwave heating energy-feeding antenna according to claim 7 is characterized in that, in this hole array, the spacing up and down between the Kong Yukong is (1/3～1/2) * a
0
9. the manufacture method of a microwave heating energy-feeding antenna is characterized in that, comprises the steps:
S100: waveguide flange is set according to standard waveguide;
S200: make resonant cavity: at first design cavity modes, confirm the hole array on the chamber wall of size and resonant cavity of resonant cavity according to this cavity modes then, and in the cavity of resonant cavity, fill full sealing medium;
S300: the design waveguide imports the mode and the excitation angle of resonant cavity, connects waveguide flange on a jiao of resonant cavity according to this mode and excitation angle that imports resonant cavity.
10. the manufacture method of microwave heating energy-feeding antenna according to claim 9 is characterized in that, in this step S200, comprises the steps again,
S210: the web plate framework is set;
S220: the first side web plate and the second side web plate that have the hole array on it are set;
S230: flat sealing medium layer is set;
S240: the sealing dielectric layer is embedded in this web plate framework, and this first side web plate and the chamber wall of this second side web plate with the formation resonant cavity is set respectively in the forward and backward both sides of sealing dielectric layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010299214 CN102448208B (en) | 2010-09-30 | 2010-09-30 | Microwave heating energy-feedback antenna and manufacturing method thereof |
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|---|---|---|---|
| CN 201010299214 CN102448208B (en) | 2010-09-30 | 2010-09-30 | Microwave heating energy-feedback antenna and manufacturing method thereof |
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| CN102448208A true CN102448208A (en) | 2012-05-09 |
| CN102448208B CN102448208B (en) | 2013-05-01 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279860A (en) * | 2014-09-16 | 2015-01-14 | 湖南华冶微波科技有限公司 | Microwave vacuum air pressure sintering furnace |
| CN107567129A (en) * | 2016-06-30 | 2018-01-09 | 恩智浦美国有限公司 | With the solid state microwave firing equipment of dielectric resonator antenna array and its operation and manufacture method |
| CN109756036A (en) * | 2019-02-28 | 2019-05-14 | 杨士中 | The conversion method and system of a kind of microwave to direct current |
| CN110099472A (en) * | 2019-05-31 | 2019-08-06 | 董继东 | Microwave power transmission irradiation structure for rewarming recovery biological tissue |
| CN110942839A (en) * | 2019-09-19 | 2020-03-31 | 中国人民解放***箭军研究院核技术研究所 | Low-level radioactive solid waste microwave pyrolysis-incineration device |
| CN112040583A (en) * | 2020-09-22 | 2020-12-04 | 南京三乐微波技术发展有限公司 | Flat plate hole array energy feedback structure for improving microwave uniformity of high-temperature furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2451112A1 (en) * | 1979-03-09 | 1980-10-03 | Sfamo | Waveguide to cavity coupler - consists of rod aerial passing through soldered coplanar walls, seal being secured between screw-threaded ring and collar |
| CN86103424A (en) * | 1986-05-22 | 1987-12-02 | 电子工业部计算机***工程研究所 | Utilize the microwave applicator of leaky antenna energy regenerative |
| WO2002077319A1 (en) * | 2001-03-27 | 2002-10-03 | Small & Medium Industry Promotion Corporation | Diamond film depositing apparatus using microwaves and plasma |
| WO2009035428A1 (en) * | 2007-09-11 | 2009-03-19 | 'technological Park 'institute For Monocrystals', Close Joint-Stock Company | A dryer for free-flowing dielectric materials |
-
2010
- 2010-09-30 CN CN 201010299214 patent/CN102448208B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2451112A1 (en) * | 1979-03-09 | 1980-10-03 | Sfamo | Waveguide to cavity coupler - consists of rod aerial passing through soldered coplanar walls, seal being secured between screw-threaded ring and collar |
| CN86103424A (en) * | 1986-05-22 | 1987-12-02 | 电子工业部计算机***工程研究所 | Utilize the microwave applicator of leaky antenna energy regenerative |
| WO2002077319A1 (en) * | 2001-03-27 | 2002-10-03 | Small & Medium Industry Promotion Corporation | Diamond film depositing apparatus using microwaves and plasma |
| WO2009035428A1 (en) * | 2007-09-11 | 2009-03-19 | 'technological Park 'institute For Monocrystals', Close Joint-Stock Company | A dryer for free-flowing dielectric materials |
Non-Patent Citations (1)
| Title |
|---|
| 李仪凡等: "微波真空干燥设备大功率微波源溃口的设计与试验", 《中国机械工程学会包装与食品工程分会2010年学术年会论文集》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279860A (en) * | 2014-09-16 | 2015-01-14 | 湖南华冶微波科技有限公司 | Microwave vacuum air pressure sintering furnace |
| CN104279860B (en) * | 2014-09-16 | 2016-01-20 | 湖南华冶微波科技有限公司 | Microwave vacuum gas pressure sintering stove |
| CN107567129A (en) * | 2016-06-30 | 2018-01-09 | 恩智浦美国有限公司 | With the solid state microwave firing equipment of dielectric resonator antenna array and its operation and manufacture method |
| CN107567129B (en) * | 2016-06-30 | 2021-09-03 | 恩智浦美国有限公司 | Solid state microwave heating device with dielectric resonator antenna array and methods of operating and manufacturing the same |
| CN109756036A (en) * | 2019-02-28 | 2019-05-14 | 杨士中 | The conversion method and system of a kind of microwave to direct current |
| CN110099472A (en) * | 2019-05-31 | 2019-08-06 | 董继东 | Microwave power transmission irradiation structure for rewarming recovery biological tissue |
| CN110942839A (en) * | 2019-09-19 | 2020-03-31 | 中国人民解放***箭军研究院核技术研究所 | Low-level radioactive solid waste microwave pyrolysis-incineration device |
| CN112040583A (en) * | 2020-09-22 | 2020-12-04 | 南京三乐微波技术发展有限公司 | Flat plate hole array energy feedback structure for improving microwave uniformity of high-temperature furnace |
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