CN102945787A - Arc tube of metal halide lamp - Google Patents
Arc tube of metal halide lamp Download PDFInfo
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- CN102945787A CN102945787A CN2012104207257A CN201210420725A CN102945787A CN 102945787 A CN102945787 A CN 102945787A CN 2012104207257 A CN2012104207257 A CN 2012104207257A CN 201210420725 A CN201210420725 A CN 201210420725A CN 102945787 A CN102945787 A CN 102945787A
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- pipeline section
- tube
- electric arc
- metal halide
- arc tube
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Abstract
The invention discloses an arc tube of a metal halide lamp. The arc tube of the metal halide lamp comprises a tube shell and two electrode leading tubes which are arranged integrally, wherein the electrode leading tubes are positioned at the two ends of the tube shell; and the arc tube of the metal halide lamp is characterized in that the tube shell comprises a cylindrical tube section and conical tube sections which are arranged integrally; the conical tube sections are symmetrically arranged at the two ends of the cylindrical tube section; the maximum internal diameter of large calibre ends of the conical tube sections is equal to the internal diameter of the cylindrical tube section; the minimum internal diameter of small calibre ends of the conical tube sections is equal to the internal diameters of the electrode leading tubes; the large calibre ends of the conical tube sections are integrally connected with the end part of the cylindrical tube section; the end parts of the electrode leading tubes are integrally connected with the small calibre ends of the conical tube sections; an arc discharge cavity is surrounded by the cylindrical tube section and the conical tube sections; when the metal halide lamp works, sound waves generated by alternating arc are reflected by the inner wall of the tube shell and uniformly returned to an axial central line of the arc discharge cavity. The arc tube of the metal halide lamp has the advantages as follows: by adopting the structure, when the metal halide lamp is equipped with a high-frequency electronic ballast, frequency modulation is not required and an acoustic resonance problem can be effectively avoided.
Description
Technical field
The present invention relates to a kind of Metal halogen lamp, especially relate to a kind of halogen electric arc tube.
Background technology
Metal halogen lamp is to produce the luminous discharge lamp of arc discharge in the halide mixed vapour of mercury and rare metal, is applied to various important events because it has the advantages such as luminous efficiency height, color developing is good, the life-span is long.Metal halogen lamp is when work, typically use that AC power drives, the electric arc of alternation can produce sound wave, the shell of existing halogen electric arc tube all is elliposoidal or sphere basically, sound wave is followed principle of reflection, sound wave after the reflection can be got back to focus or the centre of sphere of ellipsoid and assemble, when the halogen electric arc tube adapted high-frequency electronic ballast of this kind structure is worked, high-frequency reflective sound wave can blow the electric arc that is positioned on the shell center line, make the Metal halogen lamp job insecurity, because there is serious acoustic resonance problem in Metal halogen lamp during the adapted high-frequency electronic ballast, so Metal halogen lamp great majority in the market all are the adapted low-frequency electronic ballasts, but the volume of low-frequency electronic ballast is large, the cost height is unfavorable for the popularization of Metal halogen lamp, although the Metal halogen lamp by warbled method adapted high-frequency electronic ballast is also arranged, but often modulation circuit is too complicated, needs frequency is limited in certain number range, and the effect that implements difficulty and inhibition acoustic resonance is also not obvious.
Summary of the invention
Technical problem to be solved by this invention need not the halogen electric arc tube that the acoustic resonance problem just can be effectively avoided in frequency modulation(FM) when providing a kind of adapted high-frequency electronic ballast.
The present invention solves the problems of the technologies described above the technical scheme that adopts: a kind of halogen electric arc tube, comprise shell and two electrode extraction tubes of being wholely set, described electrode extraction tube is positioned at the two ends of described shell, described shell comprises cylindrical pipeline section and the taper pipeline section that is wholely set, described taper pipeline section is symmetricly set on the two ends of described cylindrical pipeline section, the maximum inner diameter of the heavy caliber end of described taper pipeline section equates with the internal diameter of described cylindrical pipeline section, the minimum diameter of the small-caliber end of described taper pipeline section equates with the internal diameter of described electrode extraction tube, the heavy caliber end of described taper pipeline section is connected with the end one of described cylindrical pipeline section, the end of described electrode extraction tube is connected with the small-caliber end one of described taper pipeline section, described cylindrical pipeline section and described taper pipeline section together surround the arc discharge chamber, during Metal halogen lamp work, get back to equably on the longitudinal center line in arc discharge chamber after the inwall reflection of the sound wave that alternation electric arc produces by shell.
The wall thickness of described cylindrical pipeline section equates with the wall thickness of described taper pipeline section.
The cone angle of described taper pipeline section is 15 ° ~ 65 °.
The cone angle of described taper pipeline section is 45 °.
The axial length in described arc discharge chamber is 1.7 ~ 4 times of internal diameter of described cylindrical pipeline section.
Described cylindrical pipeline section, described taper pipeline section and described electrode extraction tube all adopt translucent alumina ceramics to make, and are applicable to ceramic gold-halogen lamp.
Described cylindrical pipeline section, described taper pipeline section and described electrode extraction tube all adopt quartz to make, and are applicable to quartz metal halide lamp.
Compared with prior art, the Metal halogen lamp that the invention has the advantages that the halogen electric arc tube that adopts this kind structure need not frequency modulation(FM) and just can effectively avoid the acoustic resonance problem when the adapted high-frequency electronic ballast, during Metal halogen lamp work, get back to equably on the longitudinal center line in arc discharge chamber after the inwall reflection of the sound wave that alternation electric arc produces by shell, overlap with the electric arc on the center line, can not produce local gathering, guarantee the stable of electric arc, thereby guarantee the steady operation of Metal halogen lamp; The experiment proved that, no matter electric arc tube of the present invention is adapted low-frequency electronic ballast or high-frequency electronic ballast, can both be normally stable work, behind electric arc tube adapted high-frequency electronic ballast of the present invention so that the cost of whole lamp greatly reduce, be conducive to the popularization of Metal halogen lamp, can allow Metal halogen lamp as electricity-saving lamp, enter huge numbers of families.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the cutaway view of Fig. 1.
Embodiment
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
As shown in the figure, embodiment one: a kind of halogen electric arc tube, comprise shell and two electrode extraction tubes 2 of being wholely set, electrode extraction tube 2 is positioned at the two ends of shell, shell comprises cylindrical pipeline section 11 and the taper pipeline section 12 that is wholely set, taper pipeline section 12 is symmetricly set on the two ends of cylindrical pipeline section 11, the maximum inner diameter of the heavy caliber end of taper pipeline section 12 equates with the internal diameter of cylindrical pipeline section 11, the minimum diameter of the small-caliber end of taper pipeline section 12 equates with the internal diameter of electrode extraction tube 2, the heavy caliber end of taper pipeline section 12 is connected with the end one of cylindrical pipeline section 11, the end of electrode extraction tube 2 is connected with the small-caliber end one of taper pipeline section 12, cylindrical pipeline section 11 together surrounds arc discharge chamber 3 with taper pipeline section 12, during Metal halogen lamp work, get back to equably on the longitudinal center line 4 in arc discharge chamber 3 after the inwall reflection of the sound wave that alternation electric arc produces by shell, the wall thickness of cylindrical pipeline section 11 equates with the wall thickness of taper pipeline section 12, the taper angle theta of taper pipeline section 12 is 15 °, the axial length L in arc discharge chamber 3 is 1.7 ~ 4 times of inside diameter D of cylindrical pipeline section 11, cylindrical pipeline section 11, taper pipeline section 12 and electrode extraction tube 2 all adopt translucent alumina ceramics to make.
Embodiment two: other structures are identical with embodiment one, and its difference is that the cone angle of taper pipeline section is 45 °.
Embodiment three: other structures are identical with embodiment one, and its difference is that the cone angle of taper pipeline section is 65 °.
Cylindrical pipeline section, taper pipeline section and electrode extraction tube described in above-mentioned three embodiment also can adopt quartz to make.
Claims (7)
1. halogen electric arc tube, comprise shell and two electrode extraction tubes of being wholely set, described electrode extraction tube is positioned at the two ends of described shell, it is characterized in that: described shell comprises cylindrical pipeline section and the taper pipeline section that is wholely set, described taper pipeline section is symmetricly set on the two ends of described cylindrical pipeline section, the maximum inner diameter of the heavy caliber end of described taper pipeline section equates with the internal diameter of described cylindrical pipeline section, the minimum diameter of the small-caliber end of described taper pipeline section equates with the internal diameter of described electrode extraction tube, the heavy caliber end of described taper pipeline section is connected with the end one of described cylindrical pipeline section, the end of described electrode extraction tube is connected with the small-caliber end one of described taper pipeline section, described cylindrical pipeline section and described taper pipeline section together surround the arc discharge chamber, during Metal halogen lamp work, get back to equably on the longitudinal center line in arc discharge chamber after the inwall reflection of the sound wave that alternation electric arc produces by shell.
2. a kind of halogen electric arc tube according to claim 1, it is characterized in that: the wall thickness of described cylindrical pipeline section equates with the wall thickness of described taper pipeline section.
3. a kind of halogen electric arc tube according to claim 1, it is characterized in that: the cone angle of described taper pipeline section is 15 ° ~ 65 °.
4. a kind of halogen electric arc tube according to claim 3, it is characterized in that: the cone angle of described taper pipeline section is 45 °.
5. a kind of halogen electric arc tube according to claim 1 is characterized in that: the axial length in described arc discharge chamber is 1.7 ~ 4 times of internal diameter of described cylindrical pipeline section.
6. a kind of halogen electric arc tube according to claim 1, it is characterized in that: described cylindrical pipeline section, described taper pipeline section and described electrode extraction tube all adopt translucent alumina ceramics to make.
7. a kind of halogen electric arc tube according to claim 1, it is characterized in that: described cylindrical pipeline section, described taper pipeline section and described electrode extraction tube all adopt quartz to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104207257A CN102945787A (en) | 2012-10-29 | 2012-10-29 | Arc tube of metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104207257A CN102945787A (en) | 2012-10-29 | 2012-10-29 | Arc tube of metal halide lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102945787A true CN102945787A (en) | 2013-02-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104207257A Pending CN102945787A (en) | 2012-10-29 | 2012-10-29 | Arc tube of metal halide lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102945787A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61124049A (en) * | 1984-11-16 | 1986-06-11 | Matsushita Electric Works Ltd | High pressure discharge lamp |
| CN1953633A (en) * | 2005-06-01 | 2007-04-25 | 电灯专利信托有限公司 | High-pressure lamp and associated system and method for the resonant operation of high-pressure lamps in longitudinal mode |
| CN101826441A (en) * | 2009-12-02 | 2010-09-08 | 宁波亚茂照明电器有限公司 | Ceramic metal halide lamp arc tube and integral manufacture process thereof |
| CN202855710U (en) * | 2012-10-29 | 2013-04-03 | 陶子建 | Metal halide lamp electric arc tube |
-
2012
- 2012-10-29 CN CN2012104207257A patent/CN102945787A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61124049A (en) * | 1984-11-16 | 1986-06-11 | Matsushita Electric Works Ltd | High pressure discharge lamp |
| CN1953633A (en) * | 2005-06-01 | 2007-04-25 | 电灯专利信托有限公司 | High-pressure lamp and associated system and method for the resonant operation of high-pressure lamps in longitudinal mode |
| CN101826441A (en) * | 2009-12-02 | 2010-09-08 | 宁波亚茂照明电器有限公司 | Ceramic metal halide lamp arc tube and integral manufacture process thereof |
| CN202855710U (en) * | 2012-10-29 | 2013-04-03 | 陶子建 | Metal halide lamp electric arc tube |
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Application publication date: 20130227 |