CN106548921A - A kind of microwave sulfur lamp discharged based on 1/4 λ double cones coaxial resonant cavity - Google Patents
A kind of microwave sulfur lamp discharged based on 1/4 λ double cones coaxial resonant cavity Download PDFInfo
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- CN106548921A CN106548921A CN201510615584.8A CN201510615584A CN106548921A CN 106548921 A CN106548921 A CN 106548921A CN 201510615584 A CN201510615584 A CN 201510615584A CN 106548921 A CN106548921 A CN 106548921A
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- conical waveguide
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- resonant cavity
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
- H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
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Abstract
The invention discloses a kind of microwave sulfur lamp discharged based on 1/4 λ double cones coaxial resonant cavity, the microwave sulfur lamp includes double cone coaxial cavity, the magnetron with transmitting antenna, medium reflection shield and electrodeless bulb, double cone coaxial cavity includes outer conductor and inner wire, the outer conductor is made up of the first Conical Waveguide and coaxial superimposed the second Conical Waveguide on the first circular cone, the inner wire is made up of magnetron antenna and antenna extension, suitably extends the height of antenna extension to meet the condition of resonance of 1/4 λ coaxial cavities；The placement of the second Conical Waveguide, on the one hand introducing for the specular aluminium of superelevation reflecting rate be effectively improved the electric field intensity discharged at electrodeless bubble lamp, and then enhance the luminous efficiency of plasma, another aspect co-ordination medium reflection shield can be such that more than 90% light draws from intracavity, drastically increase the efficiency of light fixture.
Description
Technical field
The present invention relates to Non-polarized lamp electric light source domain, more particularly to it is a kind of based on 1/4 λ double cone coaxial resonant cavities
The microwave sulfur lamp of electric discharge.
Background technology
The core technology of microwave light source is exactly microwave cavity technology, just designs a good microwave light source of performance
Design a high quality factor Q-value, the microwave cavity of high transmission rate.American will be big in the beginning of this century
Power microwave sulfur lamp technology high price transfers LG company, while and setting about researching and developing semiconductor microactuator wave source driving medium
The microwave light source of resonator cavity, succeeds, and is proposed the LEP products of 150W-500W.But it is this micro-
Wave source also has weak point, main as follows：1st, the current price of semiconductor microwave light source technology is higher, therefore
Price of complete machine is also higher, and the LEP lamps price of a general 300W is 6000 yuan or so；2nd, because adopting medium
Ceramics do microwave cavity, bring dielectric loss, affect the raising of light efficiency；3rd, it is mercurous in bulb and85Kr this
Class radioactive substance, is not real environment-friendly products.
HIGH-POWERED MICROWAVES light source is typically using cylinder or rectangle microwave resonator cavity but low power micro- developing
During wave source, this two classes microwave cavity is just less suitable.Also released one after another some coaxial resonance in recent years
Chamber is applied on microwave light source, but general coaxial cavity surface light transmission part only accounts for 1/5, and Luminaire efficiency is not high.
The content of the invention
In place of in view of the shortcomings of the prior art, it is an object of the invention to provide a kind of based on the double circles of 1/4 λ
The microwave sulfur lamp of cone coaxial resonant cavity electric discharge, is effectively improved the electric field intensity discharged at electrodeless bubble lamp, enters
And the luminous efficiency of plasma is enhanced, while making the light transmittance of coaxial cavity lift more than 90% from 20%.
The purpose of the present invention is achieved through the following technical solutions：
A kind of microwave sulfur lamp discharged based on 1/4 λ double cones coaxial resonant cavity, including magnetron, the first circular cone
Waveguide, the second Conical Waveguide, electrodeless bulb, quartz pushrod, transit joint and micro machine, first circular cone
Waveguide forms horn shape to big opening end is cumulative successively from osculum end, and the osculum end of the first Conical Waveguide is provided with
One circular cone base, the magnetron center have magnetron antenna, and the magnetron antenna passes through the first circular cone ripple
The the first circular cone base led is placed in inside the first Conical Waveguide；Second Conical Waveguide is from osculum end to big
Mouthful end cumulative formation horn shape successively, the osculum end of the second Conical Waveguide is provided with the second circular cone base, described
Second circular cone base of the big opening end of the first Conical Waveguide and the second Conical Waveguide is connected by the first circular cone ring flange
Connect；The electrodeless bulb is placed in inside the second Conical Waveguide, the electrodeless bulb, quartz pushrod, transit joint
It is sequentially connected with micro machine；The magnetron antenna end extension is provided with antenna extension, in the magnetron
Medium reflection shield is provided with outside antenna, antenna extension, the medium reflection shield completely or partially covers magnetic control
Tube antenna or/and antenna extension, the second circular cone base of the second Conical Waveguide of the medium reflection shield correspondence set
Put；First Conical Waveguide and the second Conical Waveguide are collectively forming the outer conductor of the coaxial intracavity of double cone, magnetic
Keyholed back plate antenna and antenna extension collectively form the inner wire of the coaxial intracavity of double cone.
In order to the central axis phase of the present invention, first Conical Waveguide and the second Conical Waveguide is better achieved
Together.
Further technical scheme is：The first Conical Waveguide sidepiece is provided with from outside and penetrates inner chamber, adjustable
The adjusting screw of section impedance.
Currently preferred medium Reflecting shade structure technical scheme is：The medium reflection shield by cylindrical cover and
Plane mirror is constituted, and integrally in cylindrical shape, cylindrical cover is completely or partially covered the cylindrical cover
Magnetron antenna or/and antenna extension, the plane mirror is arranged on cylindrical cover and plane is reflective
Mirror surface scribble reflecting rate more than 96%, the nano-metal-oxide reflecting coating that is resistant to 300 DEG C of high temperature make,
Osculum end of the plane mirror just to the second Conical Waveguide.
The present invention provides a kind of preferred second circular cone：Described
The osculum end of two Conical Waveguides be placed in the first Conical Waveguide big opening end a part.
Currently preferred second Conical Waveguide technical scheme is：Second Conical Waveguide is more than by reflecting rate
96% specular aluminium is made.
Currently preferred electrodeless bulb technical scheme is：The electrodeless bulb is quartzy bead, quartzy bead
Internal being filled with the luminescent substance such as high purity sulphur or high-purity selenium, and quartzy bead is also filled with argon or xenon.
Preferably, the power supply of the magnetron is invariable power type Switching Power Supply.
Preferably, the transit joint and micro machine are arranged at outside the first Conical Waveguide, the quartz pushrod
It is arranged inside the first Conical Waveguide.
The present invention compared with the prior art, with advantages below and beneficial effect：
(1) present invention includes double cone coaxial cavity, the magnetron with transmitting antenna, medium reflection shield and nothing
Pole bulb, double cone coaxial cavity include outer conductor and inner wire, and the outer conductor is by the first Conical Waveguide and position
Coaxial superimposed the second Conical Waveguide on the first circular cone is constituted, and the inner wire is by magnetron antenna and antenna
Extension is constituted for chamber.Suitably extend the height of antenna extension to meet the condition of resonance of 1/4 λ coaxial cavities,
The placement of the second Conical Waveguide so that the introducing of superelevation reflecting rate specular aluminium, is on the one hand effectively improved nothing
The electric field intensity discharged at the bubble lamp of pole, and then the luminous efficiency of plasma is enhanced, on the other hand coordinate and be situated between
Matter reflection shield can be such that the light transmittance of coaxial cavity is lifted to more than 90% from 20%, drastically increase the efficiency of light fixture.
The present invention has the advantages that compact conformation, light efficiency are high, practical.
(2) the plasma electrodeless light source discharged based on 1/4 λ double cones coaxial resonant cavity by the present invention,
Light efficiency 100Lm/W, colour temperature 6000K, the microwave light of color rendering index ＞ 80 can be obtained when input power 400W
Source.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is one embodiment of the present invention.
Wherein, it is entitled corresponding to the reference in accompanying drawing：
1- electrodeless bulbs, 2- magnetrons, 3- the first circular cone bases, the first Conical Waveguides of 4-, 5- first
Circular cone ring flange, 6- magnetron antennas, 7- antennas extension, 8- the second circular cone bases, 9- media are anti-
Light shield, 91- cylindrical covers, 92- plane mirrors, the second Conical Waveguides of 10-, 11- quartz pushrods, 12
- transit joint, 13- micro machines, 14- adjusting screws, 15- medium fixed discs, 16-1/2 wavelength are led
Electric post.
Specific embodiment
The present invention is described in further detail with reference to embodiment：
Embodiment
As shown in figure 1, a kind of microwave sulfur lamp discharged based on 1/4 λ double cones coaxial resonant cavity, including magnetic control
Pipe 2, the first Conical Waveguide 4, the second Conical Waveguide 10, electrodeless bulb 1, quartz pushrod 11, transit joint
12 and micro machine 13, the first Conical Waveguide 4 forms horn shape to big opening end is cumulative successively from osculum end, and
The osculum end of one Conical Waveguide 4 is provided with the first circular cone base 3, and 2 center of magnetron has magnetron antenna 6,
The magnetron antenna 6 is placed in the first Conical Waveguide 4 through the first circular cone base 3 of the first Conical Waveguide 4
It is internal.Second Conical Waveguide 10 forms horn shape, second circular cone ripple to big opening end is cumulative successively from osculum end
The osculum end for leading 10 is provided with the second circular cone base 8, the big opening end and the second Conical Waveguide of the first Conical Waveguide 4
10 the second circular cone base 8 is connected by the first circular cone ring flange 5.Electrodeless bulb 1 is placed in the second circular cone ripple
Lead inside 10, electrodeless bulb 1, quartz pushrod 11, transit joint 12 and micro machine 13 are sequentially connected.This
Bright electrodeless bulb 1 is quartzy bead, filled with luminescent substances such as high purity sulphurs inside quartzy bead, and stone
Argon is also filled with English bead.Electrodeless bulb 1 is quartzy bead, filled with high purity sulphur, gold in quartzy bead
The luminescent substances such as category selenides, metal sulfide, and filled with a certain amount of startup gas (such as argon etc.).
Electrodeless bulb 1 is connected with micro machine 13 by quartz pushrod 11, transit joint 12, during work, electrodeless bulb
1 needs high-speed rotation.
According to a preferred embodiment of the present invention, 6 end of magnetron antenna extension is provided with antenna extension 7,
Medium reflection shield 9,9 whole of medium reflection shield or portion are provided with outside magnetron antenna 6, antenna extension 7
Divide and cover magnetron antenna 6 or/and antenna extension 7, the second Conical Waveguide 10 of correspondence of medium reflection shield 9
Second circular cone base 8 is arranged.It is coaxial that first Conical Waveguide 4 and the second Conical Waveguide 10 are collectively forming double cone
The outer conductor of intracavity, magnetron antenna 6 and antenna extension 7 collectively form the interior of the coaxial intracavity of double cone and lead
Body.The medium reflection shield 9 of the present embodiment can be with mica sheet, quartz glass or aluminium oxide ceramics etc..
According to one embodiment of present invention, medium reflection shield 9 is by cylindrical cover 91 and plane mirror 92
Composition, it is in cylindrical shape that cylindrical cover 91 is overall, and cylindrical cover 91 is all or part of to cover magnetron day
Line 6 or/and antenna extension 7, plane mirror 92 are arranged on cylindrical cover 91 and plane mirror
92 surfaces scribble reflecting rate more than 96%, the nano-metal-oxide reflecting coating that is resistant to 300 DEG C of high temperature make,
Osculum end of the plane mirror 92 just to the second Conical Waveguide 10.
Currently preferred first Conical Waveguide 4 is identical with the central axis of the second Conical Waveguide 10.
A preferred implementation of the invention, in 4 sidepiece of the first Conical Waveguide is provided with
Chamber, the adjusting screw 14 of adjustable impedance, the adjusting screw 14 is to adjust the impedance of whole stepless lamp system
Matching.
A preferred implementation of the invention, the osculum end of the second Conical Waveguide 10 is placed in first
A big opening end part for Conical Waveguide 4.
A preferred implementation of the invention, mirror of second Conical Waveguide 10 by reflecting rate more than 96%
Face aluminum is made.
A preferred implementation of the invention, the power supply of magnetron 2 is invariable power type switch electricity
Source.2M219J of the magnetron 2 of the present embodiment using beautiful company's production.
A preferred implementation of the invention, transit joint 12 and micro machine 13 are arranged at the first circle
Outside cone waveguide 4, quartz pushrod 11 is arranged inside the first Conical Waveguide 4.
Fig. 2 be on the basis of Fig. 1 on antenna extension equipped with 1/2 wavelength conductive pole 16,3/4
The arc of λ double cone coaxial cavities, end face radian of the conductive pole 16 towards electrodeless bulb one end and electrodeless bulb shell
Degree is consistent.In Fig. 2,15 is medium fixed disc, and conductive pole 16 is coaxially attached to the second circular cone ripple by it
Lead on 10, which scribbles nano-metal-oxide reflecting coating towards the one side of electrodeless bulb.Electrodeless bulb 1 leads to
Cross quartz pushrod 11 to draw from the second Conical Waveguide, with the transit joint 12 outside the second Conical Waveguide 10 and micro-
Motor 13 is connected, and drives 1 high-speed rotation of electrodeless bulb.
Fig. 1 is suitable for the microwave sulfur lamp using major diameter electrodeless bulb.
Fig. 2 is suitable for the microwave sulfur lamp using minor diameter electrodeless bulb, and then can develop a kind of rated power and be
The microwave sulfur lamp or microwave selenium lamp of 200W or so.
The plasma electrodeless light source discharged based on 1/4 λ double cones coaxial resonant cavity by the present invention, works as input
Light efficiency 100Lm/W, colour temperature 6000K, the microwave light source of color rendering index ＞ 80 can be obtained during power 400W.
Presently preferred embodiments of the present invention is the foregoing is only, it is not to limit the present invention, all at this
Any modification, equivalent and improvement for being made within bright spirit and principle etc., should be included in the present invention
Protection domain within.
Claims (9)
1. it is a kind of based on 1/4 λ double cones coaxial resonant cavity discharge microwave sulfur lamp, it is characterised in that：Including magnetic
Keyholed back plate (2), the first Conical Waveguide (4), the second Conical Waveguide (10), electrodeless bulb (1), quartz
Rod (11), transit joint (12) and micro machine (13), first Conical Waveguide (4) is by osculum end
To big opening end successively cumulative formation horn shape, the osculum end of the first Conical Waveguide (4) is provided with the first conical bottom
Seat (3), magnetron (2) center have magnetron antenna (6), and the magnetron antenna (6) is worn
The the first circular cone base (3) for crossing the first Conical Waveguide (4) is placed in the first Conical Waveguide (4) inside；Institute
State the second Conical Waveguide (10) and form horn shape, second circular cone ripple to big opening end is cumulative successively from osculum end
The osculum end for leading (10) is provided with the second circular cone base (8), the big opening end of first Conical Waveguide (4)
It is connected by the first circular cone ring flange (5) with the second circular cone base (8) of the second Conical Waveguide (10)；
The electrodeless bulb (1) is placed in the second Conical Waveguide (10) inside, the electrodeless bulb (1), stone
English rod (11), transit joint (12) and micro machine (13) are sequentially connected；The magnetron antenna (6)
End extension is provided with antenna extension (7), in the magnetron antenna (6), antenna extension (7) outward
Portion is provided with medium reflection shield (9), and the medium reflection shield (9) completely or partially covers magnetron antenna (6)
Or/and antenna extension (7), the second of the medium reflection shield (9) the second Conical Waveguide of correspondence (10)
Circular cone base (8) is arranged；First Conical Waveguide (4) and the second Conical Waveguide (10) are collectively forming
The outer conductor of the coaxial intracavity of double cone, magnetron antenna (6) and antenna extension (7) collectively form double circles
Bore the inner wire of coaxial intracavity.
2. according to a kind of microwave sulfur discharged based on 1/4 λ double cones coaxial resonant cavity described in claim 1
Lamp, it is characterised in that：First Conical Waveguide (4) and the central axis phase of the second Conical Waveguide (10)
Together.
3. according to a kind of microwave discharged based on 1/4 λ double cones coaxial resonant cavity described in claim 1 or 2
Sulfur lamp, it is characterised in that：First Conical Waveguide (4) sidepiece is provided with from outside and penetrates inner chamber, scalable
The adjusting screw (14) of impedance.
4. according to a kind of microwave sulfur discharged based on 1/4 λ double cones coaxial resonant cavity described in claim 1
Lamp, it is characterised in that：The medium reflection shield (9) is by cylindrical cover (91) and plane mirror (92)
Composition, integrally in cylindrical shape, cylindrical cover (91) completely or partially covers the cylindrical cover (91)
Firmly magnetron antenna (6) or/and antenna extension (7), the plane mirror (92) are arranged at cylinder
On shape cover (91) and plane mirror (92) surface scribbles reflecting rate and is more than 96%, is resistant to 300 DEG C of high temperature
Nano-metal-oxide reflecting coating make, plane mirror (92) is just to the second Conical Waveguide (10)
Osculum end.
5. according to a kind of microwave discharged based on 1/4 λ double cones coaxial resonant cavity described in claim 1 or 2
Sulfur lamp, it is characterised in that：The osculum end of second Conical Waveguide (10) is placed in the first Conical Waveguide
(4) a big opening end part.
6. according to a kind of microwave discharged based on 1/4 λ double cones coaxial resonant cavity described in claim 1 or 2
Sulfur lamp, it is characterised in that：Specular aluminium of second Conical Waveguide (10) by reflecting rate more than 96% is made.
7. according to a kind of microwave sulfur discharged based on 1/4 λ double cones coaxial resonant cavity described in claim 1
Lamp, it is characterised in that：The electrodeless bulb (1) is quartzy bead, and high purity sulphur is filled with inside quartzy bead
Or argon or xenon are also filled with high-purity selenium, and quartzy bead.
8. according to a kind of microwave sulfur discharged based on 1/4 λ double cones coaxial resonant cavity described in claim 1
Lamp, it is characterised in that：The power supply of the magnetron (2) is invariable power type Switching Power Supply.
9. according to a kind of microwave sulfur discharged based on 1/4 λ double cones coaxial resonant cavity described in claim 1
Lamp, it is characterised in that：The transit joint (12) and micro machine (13) are arranged at the first Conical Waveguide (4)
Outside, it is internal that the quartz pushrod (11) is arranged at the first Conical Waveguide (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510615584.8A CN106548921A (en) | 2015-09-17 | 2015-09-17 | A kind of microwave sulfur lamp discharged based on 1/4 λ double cones coaxial resonant cavity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510615584.8A CN106548921A (en) | 2015-09-17 | 2015-09-17 | A kind of microwave sulfur lamp discharged based on 1/4 λ double cones coaxial resonant cavity |
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| CN106548921A true CN106548921A (en) | 2017-03-29 |
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|---|---|---|---|
| CN201510615584.8A Pending CN106548921A (en) | 2015-09-17 | 2015-09-17 | A kind of microwave sulfur lamp discharged based on 1/4 λ double cones coaxial resonant cavity |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108538696A (en) * | 2018-05-15 | 2018-09-14 | 北京航空航天大学 | Microwave and the adjustable resonant cavity of plasmon coupling rate and microwave plasma device |
| CN108648986A (en) * | 2018-06-14 | 2018-10-12 | 江浩 | A kind of microwave selenium lamp |
| CN112885705A (en) * | 2021-03-29 | 2021-06-01 | 李碧霞 | Microwave coaxial cavity metal halide lamp |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5614780A (en) * | 1994-06-16 | 1997-03-25 | Fujitsu Limited | Light source for projection type display device |
| CN2336191Y (en) * | 1997-09-24 | 1999-09-01 | 中国工程物理研究院核物理与化学研究所 | Microwave sulfur lamp device |
| JP2000011963A (en) * | 1998-06-24 | 2000-01-14 | Matsushita Electron Corp | Microwave discharge lamp device |
| CN2679965Y (en) * | 2004-02-09 | 2005-02-16 | 金行星 | Microwave plasma light source |
| CN102087952A (en) * | 2009-12-08 | 2011-06-08 | 上海明凯照明有限公司 | Microwave cavity and double-waveguide microwave plasma lamp |
| CN202018949U (en) * | 2011-03-17 | 2011-10-26 | 雷彩云 | Coaxial biconical electrodeless lamp |
| CN103915313A (en) * | 2014-04-24 | 2014-07-09 | 李碧霞 | Coaxial resonant cavity microwave light source |
| CN203932007U (en) * | 2014-04-24 | 2014-11-05 | 李碧霞 | Coaxial microwave Non-polarized lamp |
| CN205177783U (en) * | 2015-09-17 | 2016-04-20 | 李碧霞 | Microwave sulphur lamp based on 1 4 lambda double cone coaxial cavity discharge |
-
2015
- 2015-09-17 CN CN201510615584.8A patent/CN106548921A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5614780A (en) * | 1994-06-16 | 1997-03-25 | Fujitsu Limited | Light source for projection type display device |
| CN2336191Y (en) * | 1997-09-24 | 1999-09-01 | 中国工程物理研究院核物理与化学研究所 | Microwave sulfur lamp device |
| JP2000011963A (en) * | 1998-06-24 | 2000-01-14 | Matsushita Electron Corp | Microwave discharge lamp device |
| CN2679965Y (en) * | 2004-02-09 | 2005-02-16 | 金行星 | Microwave plasma light source |
| CN102087952A (en) * | 2009-12-08 | 2011-06-08 | 上海明凯照明有限公司 | Microwave cavity and double-waveguide microwave plasma lamp |
| CN202018949U (en) * | 2011-03-17 | 2011-10-26 | 雷彩云 | Coaxial biconical electrodeless lamp |
| CN103915313A (en) * | 2014-04-24 | 2014-07-09 | 李碧霞 | Coaxial resonant cavity microwave light source |
| CN203932007U (en) * | 2014-04-24 | 2014-11-05 | 李碧霞 | Coaxial microwave Non-polarized lamp |
| CN205177783U (en) * | 2015-09-17 | 2016-04-20 | 李碧霞 | Microwave sulphur lamp based on 1 4 lambda double cone coaxial cavity discharge |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108538696A (en) * | 2018-05-15 | 2018-09-14 | 北京航空航天大学 | Microwave and the adjustable resonant cavity of plasmon coupling rate and microwave plasma device |
| CN108648986A (en) * | 2018-06-14 | 2018-10-12 | 江浩 | A kind of microwave selenium lamp |
| CN112885705A (en) * | 2021-03-29 | 2021-06-01 | 李碧霞 | Microwave coaxial cavity metal halide lamp |
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Application publication date: 20170329 |