CN104241081A - Waveguide coupling resonant cavity for microwave electrodeless light source - Google Patents
Waveguide coupling resonant cavity for microwave electrodeless light source Download PDFInfo
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- CN104241081A CN104241081A CN201310228241.7A CN201310228241A CN104241081A CN 104241081 A CN104241081 A CN 104241081A CN 201310228241 A CN201310228241 A CN 201310228241A CN 104241081 A CN104241081 A CN 104241081A
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Abstract
The invention relates to a waveguide coupling resonant cavity for a microwave electrodeless light source. The waveguide coupling resonant cavity comprises a microwave guide cavity and a microwave resonant cavity which are of a split structure. A cavity used for conducting microwaves is formed in the microwave guide cavity. A curved surface type light-reflecting face of an integrated structure is arranged on the internal top face of the microwave resonant cavity. Two microwave energy feedback openings are formed in the top of the microwave resonant cavity, penetrate through the curved surface type light-reflecting face and enable the microwave guide cavity and the microwave resonant cavity to be communicated. The microwave guide cavity is fixedly connected with the microwave resonant cavity. The waveguide coupling resonant cavity for the microwave electrodeless light source is novel in conception, simple in structure, easy to manufacture and convenient to assemble; no gaps are generated after the microwave guide cavity and the microwave resonant cavity are assembled, discharge and fire striking faults are eradicated, the microwave guide cavity and the microwave resonant cavity can be separated and designed individually, the optimization design can be achieved conveniently, the best optical property of the light-reflecting face can be ensured, and the microwave guide cavity can meet the requirement for the optimal electromagnetic parameters, so that the conversion efficiency is improved, the service life of a magnetron is prolonged, and glow starting of a lamp tube is facilitated.
Description
Technical field
The present invention relates to microwave non-electrode light sources technical field, especially a kind of Investigation of Waveguide Coupled Cavity for microwave non-electrode light source.
Background technology
Photo-polymerization process refers under the effect of light (comprising ultraviolet, visible ray) or high-energy ray (mainly electron beam), and liquid oligomer forms (comprising monomer) process of solid product through cross-linked polymeric.The advantages such as it has curing rate fast (thus production efficiency is high), pollute less, energy-conservation, cured product excellent performance are a kind of eco-friendly green technologies.
Wherein: ultraviolet (UV) solidification be utilize the photonasty of light trigger (sensitising agent), light-initiated formation excited ecological molecule under ultraviolet light irradiation, resolve into free radical or ion, the chemical reaction such as make unsaturated compounds carry out being polymerized, be cross-linked reaches the object of solidification.Ultraviolet curing technology is a kind of new and high technology of energy-saving and environmental protection, replaces traditional heated drying solidification, can save mass energy with it.Avoid solvent to enter air because it also can be cured without solvent and be conducive to environmental protection.
Along with the development of microwave ultraviolet light source, product on existing market is based on the product of spoke deep UV system house of the U.S., current China does not also have the product of independent research, domestic corporation is made to need the huge cost of cost to go to purchase external product, traditional microwave non-electrode light source, by magnetron, microwave guide cavity, microwave cavity, electrodeless fluorescent tube, light reflection surface, the compositions such as micro-wave screening net, microwave guide cavity and microwave cavity are integral type structure, light reflection surface is arranged among microwave guide cavity and microwave cavity, light reflection surface is the common part of microwave guide cavity and microwave cavity, light reflection surface has microwave energy-feeding mouth, microwave energy-feeding mouth is used for the micro waveguide in microwave guide cavity to enter in microwave cavity to excite electrodeless lamp luminescence.Because light reflection surface is generally bent by thin aluminum sheet to form, then be arranged in microwave cavity, because thin aluminum sheet rigidity is poor, be difficult between thin aluminum sheet and microwave cavity accomplish close contact, can micro gap be produced between the light reflection surface that thin aluminum sheet is made and microwave cavity, make between light reflection surface and cavity, electric discharge sparking fault very easily occur and damage parts; The shape of light reflection surface preferentially will ensure optical property, the backward outer injection of ultraviolet light reflection that electrodeless fluorescent tube is sent, but it cannot meet the optimized design of electromagnetic parameter simultaneously, cause the technical problems such as conversion efficiency is low, magnetron life declines, tube starting difficulty.
Summary of the invention
The technical problem to be solved in the present invention is: overcome light reflection surface and microwave cavity split in prior art and design, the rigidity deficiency of light reflection surface causes assembling between rear light reflection surface and microwave cavity and can produce micro gap, to make between light reflection surface and cavity electric discharge sparking fault very easily occurs and the technical problem of damaging parts, a kind of Investigation of Waveguide Coupled Cavity for microwave non-electrode light source is provided, microwave guide cavity and microwave cavity are split manufacture combination, microwave cavity has curved face type light reflection surface, avoid the sparking discharge fault that light reflection surface and microwave cavity loose contact cause.
The technical solution adopted for the present invention to solve the technical problems is: a kind of Investigation of Waveguide Coupled Cavity for microwave non-electrode light source, comprise microwave guide cavity and the microwave cavity of Split type structure, there is in microwave guide cavity the cavity for microwave transmission, the inside top surface of microwave cavity has the curved face type light reflection surface of integrative-structure, the top of microwave cavity has two microwave energy-feeding mouths running through curved face type light reflection surface and microwave guide cavity is communicated with microwave cavity, and described microwave guide cavity is fixedly connected with microwave cavity.Microwave cavity and light reflection surface design as a whole, avoid the sparking discharge fault that light reflection surface and microwave cavity loose contact cause.
Further, for ease of the optimal design of microwave guide cavity and microwave cavity, the exterior top surface of described microwave cavity also has the dividing plate that is separated microwave guide cavity and microwave cavity, and described microwave energy-feeding mouth runs through dividing plate.After setting up dividing plate, design can be optimized respectively to microwave guide cavity and microwave cavity, by the optical property of guarantee the best of light reflection surface, the shape of dividing plate can design according to actual needs, make microwave guide cavity meet best electromagnetic parameter simultaneously, thus improve conversion efficiency, extend magnetron life, be convenient to tube starting.
Further, for reducing the fit-up gap between microwave guide cavity and microwave cavity, reduce sparking discharge fault, described dividing plate and microwave cavity coordinate formation step between the two, and the outer wall of described dividing plate and the inwall of microwave guide cavity match.Such design can make microwave guide cavity form confined space, very close to each other between microwave guide cavity and microwave cavity, has just stopped the possibility occurrence of sparking discharge fault.
Further, for the hot-air reduced in microwave cavity enters microwave guide cavity, two described microwave energy-feeding mouth places are respectively equipped with a mica sheet.Mica sheet can make the microwave in microwave guide cavity through entering in microwave cavity, and stops the hot-air in microwave cavity to enter microwave guide cavity.
Further, for ease of the heat radiation of microwave cavity, and then protection components and parts, the cavity of described microwave cavity offers louvre.
Concrete, the cavity in described microwave guide cavity is the trapezoidal bodily form or the rectangle bodily form.
Further, for improving ultraviolet light reflectance, described light reflection surface has reflecting coating.
Concrete, described reflecting coating is aluminium coated or silver coating.
The invention has the beneficial effects as follows, Investigation of Waveguide Coupled Cavity for microwave non-electrode light source of the present invention is novel, structure is simple, be easy to manufacture, be convenient to assembling, microwave guide cavity and the rear gapless of microwave cavity assembling, stop sparking fault of discharging, microwave guide cavity and microwave cavity can be separated and designed separately, be convenient to reach optimized design, the optical property of the best of light reflection surface can be ensured, microwave guide cavity can be made again to meet best electromagnetic parameter, thus improve conversion efficiency, extend magnetron life, be convenient to tube starting.
1, microwave guide cavity of the present invention and microwave cavity can adopt split die casting to form, and are convenient to production and processing, handling and maintenance;
2, the present invention by microwave cavity and light reflection surface design as a whole, avoid the sparking discharge fault that light reflection surface and microwave cavity loose contact cause;
3, the curve form in microwave cavity by optic requirement design, compared with laminal reflecting surface, can have higher rigidity and form accuracy;
4, in microwave cavity, the dividing plate of plane and microwave guide cavity inside together constitute the prismatoid cavity structure of a standard, are conducive to the optimal design of electromagnetic parameter.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is first example structure schematic diagram of the Investigation of Waveguide Coupled Cavity of microwave non-electrode light source of the present invention;
Fig. 2 is that the master of microwave guide cavity of the present invention looks perspective view;
Fig. 3 is the vertical view of microwave cavity of the present invention;
Fig. 4 is second example structure schematic diagram of the Investigation of Waveguide Coupled Cavity of microwave non-electrode light source of the present invention.
In figure: 1. microwave guide cavity, 2. microwave cavity, 21. louvres, 3. microwave energy-feeding mouth, 4. dividing plate, 5. mica sheet, 6. Microwave emission hole.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
As shown in Fig. 1 Fig. 2 Fig. 3, first embodiment of the Investigation of Waveguide Coupled Cavity for microwave non-electrode light source of the present invention, comprise microwave guide cavity 1 and the microwave cavity 2 of Split type structure, there is in microwave guide cavity 1 cavity for microwave transmission, the inside top surface of microwave cavity 2 has the curved face type light reflection surface of integrative-structure, the top of microwave cavity 2 has two microwave energy-feeding mouths 3 running through curved face type light reflection surface and microwave guide cavity 1 is communicated with microwave cavity 2, and microwave guide cavity 1 is fixedly connected with microwave cavity 2.Microwave cavity 2 and light reflection surface design as a whole, avoid the sparking discharge fault that light reflection surface and microwave cavity 2 loose contact cause.Microwave guide cavity 1 is fixedly connected with by screw, bolt, rivet or buckle etc. with microwave cavity 2, also can adopt and be welded to connect.The mode being convenient to mount and dismount can connect for screw, is provided with corresponding screwed hole at microwave guide cavity 1 with microwave cavity 2.The present embodiment is most basic scheme of the present invention, solve and cause assembling between rear light reflection surface and microwave cavity and can produce micro gap because of the rigidity deficiency of light reflection surface, making, between light reflection surface and cavity, electric discharge sparking fault very easily occurs and the technical problem of damaging parts.Light reflection surface can design according to actual needs, can be designed to circular arc, ellipse arc or fold-line-shaped etc.
As shown in Figure 4, second embodiment of the Investigation of Waveguide Coupled Cavity for microwave non-electrode light source of the present invention, be with the difference of first embodiment: for ease of the optimal design of microwave guide cavity 1 and microwave cavity 2, the exterior top surface of microwave cavity 2 also has the dividing plate 4 that is separated microwave guide cavity 1 and microwave cavity 2, and microwave energy-feeding mouth 3 runs through dividing plate 4.After setting up dividing plate 4, design can be optimized respectively to microwave guide cavity 1 and microwave cavity 2, best optical property can be ensured by light reflection surface, the shape of dividing plate 4 can design according to actual needs, make microwave guide cavity 1 meet best electromagnetic parameter simultaneously, thus improve conversion efficiency, extend magnetron life, be convenient to tube starting.
Further, be reduce the fit-up gap between microwave guide cavity 1 and microwave cavity 2, reduce sparking discharge fault, dividing plate 4 coordinates between the two with microwave cavity 2 and forms step, and the outer wall of dividing plate 4 and the inwall of microwave guide cavity 1 match.Such design can make microwave guide cavity 1 form confined space, very close to each other between microwave guide cavity 1 and microwave cavity 2, has just stopped the possibility occurrence of sparking discharge fault.
Further, a mica sheet 5 is respectively equipped with for the hot-air reduced in microwave cavity 2 enters microwave guide cavity 1, two microwave energy-feeding mouth 3 places.Mica sheet 5 can make the microwave in microwave guide cavity 1 through entering in microwave cavity 2, and stops the hot-air in microwave cavity 2 to enter microwave guide cavity 1.
Further, for ease of the heat radiation of microwave cavity 2, and then protection components and parts, the cavity of microwave cavity 2 offers louvre 21.
Concrete, the cavity in microwave guide cavity 1 is the trapezoidal bodily form or the rectangle bodily form.
Further, for improving ultraviolet light reflectance, described light reflection surface has reflecting coating.
Concrete, described reflecting coating is aluminium coated or silver coating.
Second embodiment is further prioritization scheme of the present invention, microwave guide cavity and microwave cavity can be separated and designed separately, be convenient to reach optimized design, the optical property of the best of light reflection surface can be ensured, microwave guide cavity can be made again to meet best electromagnetic parameter, thus improve conversion efficiency, extend magnetron life, be convenient to tube starting.
Investigation of Waveguide Coupled Cavity is the critical component of microwave non-electrode light source, Investigation of Waveguide Coupled Cavity is formed primarily of microwave guide cavity 1 and microwave cavity 2, the end face of microwave guide cavity 1 is provided with Microwave emission hole 6, microwave guide cavity 1 installs magnetron, in microwave cavity 2, electrodeless fluorescent tube is installed, microwave cavity 2 can also installing micro-wave screening net, microwave non-electrode light source can be formed by powering to magnetron.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (8)
1. the Investigation of Waveguide Coupled Cavity for microwave non-electrode light source, it is characterized in that: the microwave guide cavity and the microwave cavity that comprise Split type structure, there is in microwave guide cavity the cavity for microwave transmission, the inside top surface of microwave cavity has the curved face type light reflection surface of integrative-structure, the top of microwave cavity has two microwave energy-feeding mouths running through curved face type light reflection surface and microwave guide cavity is communicated with microwave cavity, and described microwave guide cavity is fixedly connected with microwave cavity.
2. as claimed in claim 1 for the Investigation of Waveguide Coupled Cavity of microwave non-electrode light source, it is characterized in that: the exterior top surface of described microwave cavity also has the dividing plate that is separated microwave guide cavity and microwave cavity, and described microwave energy-feeding mouth runs through dividing plate.
3., as claimed in claim 2 for the Investigation of Waveguide Coupled Cavity of microwave non-electrode light source, it is characterized in that: described dividing plate and microwave cavity coordinate formation step between the two, the outer wall of described dividing plate and the inwall of microwave guide cavity match.
4. the Investigation of Waveguide Coupled Cavity for microwave non-electrode light source as described in claim 1 or 2 or 3, is characterized in that: two described microwave energy-feeding mouth places are respectively equipped with a mica sheet.
5., as claimed in claim 4 for the Investigation of Waveguide Coupled Cavity of microwave non-electrode light source, it is characterized in that: the cavity of described microwave cavity offers louvre.
6., as claimed in claim 1 for the Investigation of Waveguide Coupled Cavity of microwave non-electrode light source, it is characterized in that: the cavity in described microwave guide cavity is the trapezoidal bodily form or the rectangle bodily form.
7., as claimed in claim 1 for the Investigation of Waveguide Coupled Cavity of microwave non-electrode light source, it is characterized in that: described light reflection surface has reflecting coating.
8., as claimed in claim 7 for the Investigation of Waveguide Coupled Cavity of microwave non-electrode light source, it is characterized in that: described reflecting coating is aluminium coated or silver coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310228241.7A CN104241081A (en) | 2013-06-06 | 2013-06-06 | Waveguide coupling resonant cavity for microwave electrodeless light source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310228241.7A CN104241081A (en) | 2013-06-06 | 2013-06-06 | Waveguide coupling resonant cavity for microwave electrodeless light source |
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| CN104241081A true CN104241081A (en) | 2014-12-24 |
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| CN201310228241.7A Pending CN104241081A (en) | 2013-06-06 | 2013-06-06 | Waveguide coupling resonant cavity for microwave electrodeless light source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109553155A (en) * | 2018-12-07 | 2019-04-02 | 四川麦克优威环保科技有限责任公司 | Electrodeless ultraviolet sterilization device for sewage treatment plant |
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2013
- 2013-06-06 CN CN201310228241.7A patent/CN104241081A/en active Pending
Patent Citations (13)
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| JP2003022786A (en) * | 2001-07-09 | 2003-01-24 | Matsushita Electric Works Ltd | Microwave electrodeless discharge lamp device |
| KR20040034758A (en) * | 2002-10-15 | 2004-04-29 | 태원전기산업 (주) | Apparatus To Generate A Rotating Field For Electrodeless High-intensity Discharge Lamps |
| KR20040062004A (en) * | 2002-12-31 | 2004-07-07 | 엘지전자 주식회사 | Electrodless lighting system |
| KR100565216B1 (en) * | 2003-09-08 | 2006-03-30 | 엘지전자 주식회사 | Wave guide structure of electrodeless lighting system |
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| KR20070045070A (en) * | 2005-10-26 | 2007-05-02 | 엘지전자 주식회사 | Plasma lighting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109553155A (en) * | 2018-12-07 | 2019-04-02 | 四川麦克优威环保科技有限责任公司 | Electrodeless ultraviolet sterilization device for sewage treatment plant |
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Application publication date: 20141224 |