CN101950716B - Long tubular internal-coupling electrodeless fluorescent lamp - Google Patents
Long tubular internal-coupling electrodeless fluorescent lamp Download PDFInfo
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- CN101950716B CN101950716B CN 201010274516 CN201010274516A CN101950716B CN 101950716 B CN101950716 B CN 101950716B CN 201010274516 CN201010274516 CN 201010274516 CN 201010274516 A CN201010274516 A CN 201010274516A CN 101950716 B CN101950716 B CN 101950716B
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- coupling
- power coupler
- fluorescent lamp
- electrodeless fluorescent
- long tubular
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- 238000010168 coupling process Methods 0.000 title claims abstract description 73
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 73
- 230000008878 coupling Effects 0.000 claims abstract description 56
- 239000011521 glass Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 8
- 229910000497 Amalgam Inorganic materials 0.000 claims abstract description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims description 11
- 230000005672 electromagnetic field Effects 0.000 claims description 6
- 240000009087 Crescentia cujete Species 0.000 claims description 3
- 235000005983 Crescentia cujete Nutrition 0.000 claims description 3
- 235000009797 Lagenaria vulgaris Nutrition 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 2
- 238000002310 reflectometry Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 12
- 230000005855 radiation Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000985 reflectance spectrum Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a long tubular internal-coupling electrodeless fluorescent lamp which comprises a glass bulb, amalgam and a power coupler, wherein the glass bulb comprises an outer bulb and an inner liner that form an annular closed heating cavity, the inner liner is provided with a coupling cavity internally; the power coupler comprises a heating rod, a magnetic core and a winding group that are arranged from inside to outside, the power coupler is arranged in the coupling cavity; two ends of the coupling cavity are mutually communicated and are both communicated with outside; the outer bulb of the glass bulb is in a long tubular structure; the length of the magnetic ore of the power coupler is not less than 1/2 that of the coupling cavity, the length of the winding group is 1/5-4/5 that of the coupling cavity, so that an electric magnetic field is evenly distributed; and a diffuse reflection layer made of non-conductive diffuse reflection materials is arranged between the inner wall (close to the power coupler) of the inner liner and the outer surface of the power coupler, wherein the diffuse reflection materials have 250-2000 broad spectrum high reflectivity and can resist a high temperature of above 100 DEG C.
Description
[technical field]
The present invention relates to a kind of electrodeless fluorescent lamp, particularly a kind of long tubular inner-coupling electrodeless fluorescent lamp.
[background technology]
Traditional electrodeless florescent lamp, can be divided into two large classes by contour structures and power coupled modes, it is the tubulose annular coupling electrodeless fluorescent lamp in electrodeless fluorescent lamp and the ball alveolitoid that is coupled outward, the light source that this two classes electrodeless fluorescent lamp sends all belongs to area source, the tubulose annular tubular diameter of electrodeless fluorescent lamp and little that is coupled outward, but its discharge loop requires to be annular, therefore this lamp needs to be comprised of the fluorescent tube of the closed form that circularizes, no matter adopt the annular tubulose or adopt its supporting Design of Luminaires of form of rectangular tubular all to acquire a certain degree of difficulty.And the ball bulb diameter of coupling electrodeless fluorescent lamp is larger in the ball alveolitoid, has equally the problem of supporting light fixture reflector design difficulty, and its distribution curve flux can't open, and is difficult to satisfy the light distribution requirements of street lamp TYPE III; The more important thing is, the ball bubble of coupling electrodeless fluorescent lamp only has an end opening in the ball alveolitoid, make an end of coupling cavity open, the structure of other end sealing can not form good ventilated environment, and its radiating effect is very undesirable, affected to a large extent light fixture the life-span has been arranged, and the ball bubble shape of coupling electrodeless fluorescent lamp is single in the ball alveolitoid, and applicable environment is also more single, a kind of electrodeless florescent lamp of tubular-type occurred in the industry afterwards.
Both-end inner-coupled electrodeless lamp technology is also authorized by the applicant's application, its publication number is CN1560898, open day is 2005.01.05, this patent disclosure a kind of electrodeless fluorescent lamp, have air pipe on its sealed glass container, namely coupling cavity is both ends open structure (seeing claim 9 and the accompanying drawing 6 of this patent for details), makes air form convection current through this air pipe, and by the heat radiation of both end heat conducting rod, effectively heat in the bulb is derived.The method that provides by this patent can solve the Heat Conduction Problems in the bulb.
No matter but the inner-coupled electrodeless fluorescent lamp ball alveolitoid of present this both-end opening structure or tubular-type be because the shared surface area of inner bag is not little with the ratio of bulb outer surface efficient lighting area, be positioned at light that inner bag fluorescent material sends and can't utilize and affect the light efficiency problem of bulb and unresolved.
[summary of the invention]
The technical problem to be solved in the present invention is to provide a kind of long tubular inner-coupling electrodeless fluorescent lamp, and radiating effect is desirable, and light distribution effect is good.
The technical problem to be solved in the present invention is achieved in that a kind of long tubular inner-coupling electrodeless fluorescent lamp, comprise a glass envelope, one amalgam and a power coupler, described glass envelope comprises outer bubble and the inner bag that surrounds the airtight heat release cavity of a ring-type, and the inside of inner bag has a coupling cavity, described power coupler comprises the heat-radiating rod that arranges from inside to outside, magnetic core and coiling group, described power coupler places in the described coupling cavity, and described coupling cavity two ends connect mutually, and all communicate with the external world, it is characterized in that: the outer bubble of described glass envelope is the elongated tubular structure; The core length of described power coupler is greater than 1/2 coupling cavity length, and coiling group length is 1/5～4/5 of coupling cavity length, and uniform electromagnetic field is distributed; Be provided with one deck at least between the inwall of described inner bag and the outer surface of described power coupler by non-conductive and be the diffuse reflector that the wide spectrum high reflectance of 250～2000nm and diffuse-reflective material that can anti-high temperature more than 100 ℃ make.
Described diffuse reflector have can anti-high temperature more than 250 ℃ characteristic such as polytetrafluoroethylene floor.Described diffuse reflector is covered in the inwall of described inner bag, perhaps is covered in the outer surface of described power coupler.The thickness of described diffuse reflector is 0.01～5mm.
The ratio of described outer bulb diameter maximum and coupling cavity diameter is between 10: 2～5, this ratio can effectively solve the contradiction of coupling efficiency and diffuse reflection efficient, the inner bag diameter is less to be that the coupling cavity diameter is less, the net sectional area that electrodeless lamp tube participates in discharge is larger, coupling efficiency is higher, but the little surface area of diffusive reflective film that effectively utilizes of inner bag diameter reduces.The outer bubble of described glass envelope is the straight-tube shape structure, perhaps is the calabash shaped structure, and also or be the structure of middle straight shape two ends arc; The cross sectional shape of described coupling cavity is circle, triangle or polygon.
The heat-radiating rod of described power coupler and magnetic core are plane contact, the heat-radiating rod of power coupler as described is flat structure, magnetic core is divided into the up and down two-layer tow sides that are individually fixed in flat heat-radiating rod, and every magnetic core has at least a plane and contacts with the heat-radiating rod face, is convenient to heat radiation.Described magnetic core is single hop continous way core structure, or the two-part or the multisection type core structure that connect successively; Described coiling group is that integral body evenly distributes or the equally distributed mode of dividing into groups is arranged in the coupling cavity.
Described outer bubble and the coaxial setting of inner bag to form symmetrical structure, make light distribution effect better.
The invention has the advantages that: (i.e. that side of close power coupler of the inboard by the glass bulb inner bag of coupling electrodeless fluorescent lamp in the both-end tubulose, be absence of discharge district side) and the outer surface of described power coupler between at least one deck diffuse reflector is set, this diffuse reflector is made by the diffuse-reflective material of the high diffuse reflectance of non-conductive and resistant to elevated temperatures wide spectrum, the visible light that bulb inner bag light-emitting area can be sent and infrared ray are in diffuse-reflective material is reflected back the airtight discharging chamber of ring-type, finally the outer surface via glass envelope appears, and original unserviceable this part visible light is used.And the visible light of this part and infrared ray can directly not impinge upon on the outer surface by power coupler, can improve to a great extent light efficiency, reduce temperature and prolong light source life.Adopt coupling electrodeless fluorescent lamp in the good tubulose of ventilated environment, the magnetic core of power coupler and coiling group are evenly arranged in the coupling cavity, uniform electromagnetic field is distributed, and then the solubility of plasma is evenly distributed, in order to improving light efficiency.Coupling electrodeless fluorescent lamp in this both-end tubulose reaches the light distribution requirements of the TYPE III of street lamp owing to adopt single tube structure to be easy to cooperate with light fixture.
[description of drawings]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the external structure schematic diagram of the embodiment one of electrodeless fluorescent lamp of the present invention.
Fig. 2 is the axial cutaway view of Fig. 1.
Fig. 3 is the internal structure schematic diagram of the embodiment of the invention two.
Fig. 4 is the internal structure schematic diagram of the embodiment of the invention three.
Fig. 5 is the internal structure schematic diagram of the embodiment of the invention four.
[embodiment]
Embodiment one
See also illustrated in figures 1 and 2ly, long tubular inner-coupling electrodeless fluorescent lamp 10 of the present invention comprises a glass envelope 1 and a power coupler 3.
Described glass envelope 1 comprises outer bubble 11 and the inner bag 12 of coaxial setting, be somebody's turn to do outer bubble 11 and inner bag 12 and surround the airtight heat release cavity 13 of a ring-type, the inwall of the airtight heat release cavity 13 of ring-type scribbles fluorescent material, and the inside of inner bag 12 has a coupling cavity 14, and the cross sectional shape of coupling cavity 14 is circle, triangle or polygon.Described coupling cavity 14 two ends are all non-airtight, and mutually connect, and to form Open architecture, form good ventilated environment, and its radiating effect is desirable.Usually inner bag 12 internal diameters are less is that coupling cavity 14 diameters are less, the net sectional area that electrodeless lamp tube participates in discharge is larger, coupling efficiency is higher, but the little surface area of diffusive reflective film that effectively utilizes of inner bag 12 diameters reduces, the ratio of described outer bubble 11 diameter maximums and coupling cavity 14 diameters (being the internal diameter of inner bag 12) is 10: 2～5, this ratio can effectively solve the coupling efficiency of power coupler 3 and the contradiction of diffuse reflection efficient, makes light distribution effect better.
Described power coupler 3 comprises heat-radiating rod 33, magnetic core 31 and the coiling group 32 that arranges from inside to outside, described heat-radiating rod 33 places in the coupling cavity 14 of inner bag 12, and axial arranged along inner bag 12, and the length of magnetic core 31 is greater than the length of 1/2 coupling cavity 14, the length of coiling group 32 be coupling cavity 14 length 1/5.
In the present embodiment, the outer bubble 11 of described glass envelope 1 is middle straight shape two ends arc, belongs to the elongated tubular structure, and its axial direction is longer, is similar to tubular structure; The heat-radiating rod 33 of described power coupler 3 is flat structure, and magnetic core 31 is divided into the up and down two-layer tow sides that are individually fixed in flat heat-radiating rod 33, and every magnetic core 31 has at least a plane and contacts with 33 of heat-radiating rod, is convenient to heat radiation.Described magnetic core 31 is single hop continous way core structure, be magnetic core 31 not segmentations, it is that what be connected is same coil that coiling group 32 is divided into two groups and these two groups in heat-radiating rod 33, and is arranged in the two ends in the coupling cavity 14, electromagnetic field is all distributed, and light distribution effect is better.
In addition, in the present embodiment, the inwall of described inner bag 12 covers one deck diffuse reflector 4.Described diffuse reflector 4 is polytetrafluoroethylene floor (F4, PTFE, TEFLON).The thickness of described polytetrafluoroethylene floor is 0.01～5mm.
During covering, can first polytetrafluoroethylene be made a rete, again even film layer be affixed to the inwall of described inner bag 12, to form a diffuse reflector 4; Can also first polytetrafluoroethylene be made emulsion form, form a diffuse reflector 4 by painting way at the inwall of described inner bag 12.
Because the diffuse reflectance of polytetrafluoroethylene in the 250-2500nm spectral region is higher, reflectance spectrum is smooth, and high temperature resistant (greater than 250 degree Celsius) are well suited for the use of electrodeless fluorescent lamp, therefore the electrodeless fluorescent lamp among this embodiment is when luminous, part from heat release cavity 25 thoroughly to the visible light of coupling cavity 26 and infrared ray since the obstruct of described diffuse reflector 4 be reflected back again in the heat release cavity 13, finally the outer surface by glass bulb appears, be absorbed and can directly not impinge upon on the outer surface of power coupler 3, thereby the luminous efficiency of lamp body is raise, the whole coupling cavity 14 interior temperature of inner bag 12 are reduced, can the overall performance of power coupler 3 not impacted; Do not have ultraviolet light yet power coupler 3 is damaged, and affect the life-span.
In addition, an embodiment as the present invention's application, the two ends of described heat-radiating rod 33 are connected with heat radiation end cap 5, offer at least a of a plurality of axial holes 52 and radial hole 53 on this heat radiation end cap 5, and this axial hole 52 or radial hole 53 are communicated with the coupling cavity 14 of described inner bag 12, so that assemble under the situation of heat radiation end cap 5, the two ends of the coupling cavity 14 of inner bag 12 still are in communication with the outside, and are beneficial to air in coupling cavity 14 circulation heat radiations.
Embodiment two
As shown in Figure 3, present embodiment is compared with above-described embodiment one, and one of its difference is: 11 shape is steeped by described glass envelope 1 China and foreign countries, and the outer bubble 11 in the present embodiment is the straight-tube shape structure, still belongs to the elongated tubular structure.
Two of its difference is: diffuse reflector 4 is the outer surfaces that are covered in described power coupler 3, during covering, can first polytetrafluoroethylene be made a rete, even film layer is wrapped in the outer surface of described power coupler 3, to form a diffuse reflector 4 again; With can first polytetrafluoroethylene be made emulsion form, form a diffuse reflector 4 by painting way at the outer surface of described power coupler 3.Can reach with embodiment one in identical effect.
Three of its difference is: described magnetic core 31 is for dividing the two-part structure that interconnects, the length of coiling group 32 be coupling cavity 14 length 4/5, described coiling is organized 32 integral body and is evenly distributed on the heat-radiating rod 33, and be evenly arranged in the coupling cavity 14, uniform electromagnetic field is distributed, and light distribution effect is better.
Embodiment three
As shown in Figure 4, present embodiment is compared with above-described embodiment one, and one of its difference is that described glass envelope 1 steeps 11 shape at home and abroad, and the outer bubble 11 in the present embodiment is the calabash shaped structure, still belongs to the elongated tubular structure.
Two of its difference is: diffuse reflector 4 is a certain positions that are arranged between the outer surface of the inwall of described inner bag 12 and described power coupler 3, when arranging, can first polytetrafluoroethylene be made a diffuse reflector 4 by mould etc., again diffuse reflector 4 is placed on correct position and get final product.Can reach with embodiment one in identical effect.
Three of its difference is: described magnetic core 31 is for dividing the three stage structure that interconnects, the length of coiling group 32 be coupling cavity 14 length 2/5, coiling group 32 is divided into many groups and evenly arranges on heat-radiating rod 33, and be evenly arranged in the coupling cavity 14, uniform electromagnetic field is distributed, and light distribution effect is better.
Embodiment four
As shown in Figure 5, present embodiment is compared with above-described embodiment three, and one of its difference is that described glass envelope 1 steeps 11 shape at home and abroad, and the outer bubble 11 in the present embodiment is arcuate structure, still belongs to the elongated tubular structure.
Two of its difference is: the four-part form structure of described magnetic core 31 for minute interconnecting, the length of coiling group 32 be coupling cavity 14 length 3/5.
Among above-mentioned four embodiment, the outer bubble 11 of described glass envelope 1 is the elongated tubular structure, because the magnetic field that the discharge loop that the coiling group 32 on described power coupler 3 magnetic cores 31 surfaces consists of forms is axial, induction field is circumferencial direction, the direction of its loop electric arc is the circumferencial direction around described power coupler 3, and be uniformly distributed in outer bubble 11 with inner bag 12 surround also in the annular closed heat release cavity 13 of elongated tubulose, therefore compare coupling electrodeless fluorescent lamp in the ball alveolitoid, its luminous intensity distribution is more even.The cross sectional shape of described inner bag 12 is not limit, and can be circle, triangle or polygon.In addition, above-described embodiment all is to select effect polytetrafluoroethylene is as diffuse reflector preferably, and the present invention is other non-conducting materials with resistant to elevated temperatures high diffuse reflectance of optional usefulness also.And diffuse reflector of the present invention can only arrange one deck, also two-layer or multilayer can be set.In addition, the heat-radiating rod of described power coupler is not limited to flat structure, as long as have at least one plane of suitable width, making it with magnetic core is plane contact, is convenient to heat conduction and gets final product.
Claims (10)
1. long tubular inner-coupling electrodeless fluorescent lamp, comprise a glass envelope, an amalgam and a power coupler, described glass envelope comprises outer bubble and the inner bag that surrounds the airtight heat release cavity of a ring-type, and the inside of inner bag has a coupling cavity, described power coupler comprises heat-radiating rod, magnetic core and the coiling group that arranges from inside to outside, described power coupler places in the described coupling cavity, and described coupling cavity two ends connect mutually, and all communicate with the external world, the outer bubble of described glass envelope is the elongated tubular structure; It is characterized in that: the core length of described power coupler is greater than 1/2 coupling cavity length, and coiling group length is 1/5～4/5 of coupling cavity length, and uniform electromagnetic field is distributed; Be provided with one deck at least between the inwall of described inner bag and the outer surface of described power coupler by non-conductive and be the diffuse reflector that diffuse-reflective material that the wide spectrum high reflectance of 250～2000nm can anti-high temperature more than 100 ℃ makes.
2. long tubular inner-coupling electrodeless fluorescent lamp according to claim 1 is characterized in that: described diffuse reflector have can anti-high temperature more than 250 ℃ characteristic.
3. long tubular inner-coupling electrodeless fluorescent lamp according to claim 2, it is characterized in that: described diffuse reflector is polytetrafluoroethylene floor.
4. according to claim 1 or 3 described long tubular inner-coupling electrodeless fluorescent lamps, it is characterized in that: described diffuse reflector is covered in the inwall of described inner bag, perhaps is covered in the outer surface of described power coupler.
5. long tubular inner-coupling electrodeless fluorescent lamp according to claim 4, it is characterized in that: the thickness of described diffuse reflector is 0.01～5mm.
6. long tubular inner-coupling electrodeless fluorescent lamp according to claim 1, it is characterized in that: the ratio of described outer bulb diameter maximum and coupling cavity diameter is between 10:2～5.
7. long tubular inner-coupling electrodeless fluorescent lamp according to claim 6 is characterized in that:
The outer bubble of described glass envelope is the straight-tube shape structure, perhaps is the calabash shaped structure, and also or be the structure of middle straight shape two ends arc;
The cross sectional shape of described coupling cavity is circle, triangle or polygon.
8. long tubular inner-coupling electrodeless fluorescent lamp according to claim 1, it is characterized in that: the heat-radiating rod of described power coupler and magnetic core are plane contact.
9. long tubular inner-coupling electrodeless fluorescent lamp according to claim 8, it is characterized in that: the heat-radiating rod of described power coupler is flat structure, magnetic core is divided into up and down two-layer positive and negative two planes that are individually fixed in flat heat-radiating rod, and every magnetic core has at least a plane and contacts with the heat-radiating rod face.
10. according to claim 1 or 8 described long tubular inner-coupling electrodeless fluorescent lamps, it is characterized in that: described magnetic core is single hop continous way core structure, or the two-part or the multisection type core structure that connect successively; Described coiling group is that integral body evenly distributes or the equally distributed mode of dividing into groups is arranged in the coupling cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010274516 CN101950716B (en) | 2010-09-06 | 2010-09-06 | Long tubular internal-coupling electrodeless fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010274516 CN101950716B (en) | 2010-09-06 | 2010-09-06 | Long tubular internal-coupling electrodeless fluorescent lamp |
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| Publication Number | Publication Date |
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| CN101950716A CN101950716A (en) | 2011-01-19 |
| CN101950716B true CN101950716B (en) | 2013-03-20 |
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| CN 201010274516 Expired - Fee Related CN101950716B (en) | 2010-09-06 | 2010-09-06 | Long tubular internal-coupling electrodeless fluorescent lamp |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8648520B2 (en) * | 2010-09-09 | 2014-02-11 | Fujian Juan Kuang Yaming Electric Limited | Inner coupling tubular type electrodeless lamp |
| CN102243983A (en) * | 2011-06-13 | 2011-11-16 | 苏州东大光普科技有限公司 | Electrodeless lamp |
| CN102412113A (en) * | 2011-07-29 | 2012-04-11 | 河海大学常州校区 | Secondary inductively coupled plasma electrodeless lamp |
| CN104201091A (en) * | 2014-09-04 | 2014-12-10 | 苏州承乐电子科技有限公司 | Magnetic field coupler |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6288490B1 (en) * | 1999-02-24 | 2001-09-11 | Matsoshita Electric Works Research And Development Laboratory Inc | Ferrite-free electrodeless fluorescent lamp |
| CN1550029A (en) * | 2001-10-24 | 2004-11-24 | 松下电工株式会社 | Electrodeless low pressure lamp with multiple ferrite cores and induction coils |
| CN201796861U (en) * | 2010-09-06 | 2011-04-13 | 福建源光亚明电器有限公司 | Long tubular inner-coupling electrodeless fluorescent lamp |
-
2010
- 2010-09-06 CN CN 201010274516 patent/CN101950716B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6288490B1 (en) * | 1999-02-24 | 2001-09-11 | Matsoshita Electric Works Research And Development Laboratory Inc | Ferrite-free electrodeless fluorescent lamp |
| CN1550029A (en) * | 2001-10-24 | 2004-11-24 | 松下电工株式会社 | Electrodeless low pressure lamp with multiple ferrite cores and induction coils |
| CN201796861U (en) * | 2010-09-06 | 2011-04-13 | 福建源光亚明电器有限公司 | Long tubular inner-coupling electrodeless fluorescent lamp |
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