CN107559621B - Filament fluorescent strip, filament lamp and manufacturing method thereof - Google Patents
Filament fluorescent strip, filament lamp and manufacturing method thereof Download PDFInfo
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- CN107559621B CN107559621B CN201710637973.XA CN201710637973A CN107559621B CN 107559621 B CN107559621 B CN 107559621B CN 201710637973 A CN201710637973 A CN 201710637973A CN 107559621 B CN107559621 B CN 107559621B
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- 238000005245 sintering Methods 0.000 claims abstract description 7
- 238000005507 spraying Methods 0.000 claims abstract description 7
- 238000007598 dipping method Methods 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims abstract description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 15
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- 239000012780 transparent material Substances 0.000 claims 1
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- 230000002070 germicidal effect Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
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Abstract
The invention discloses a filament fluorescent strip, a filament lamp and a manufacturing method thereof, wherein the manufacturing method comprises the following steps: the lamp bulb shell is used for conducting a lamp holder, a fluorescent strip rack arranged on the lamp holder, an invisible ultraviolet light source and a filament fluorescent strip arranged on the fluorescent strip rack, the width of the filament fluorescent strip is less than or equal to 100 mu m, and the method for manufacturing the filament fluorescent strip comprises the following steps: laser patterning technology or high-temperature sintering technology or a line dipping fluorescent glue mode or a dispensing mode or a printing mode or a spraying mode.
Description
Technical Field
The invention relates to the technical field of lamp decoration, in particular to a filament fluorescent strip, a filament lamp and a manufacturing method thereof.
Background
The filament of the traditional lighting lamp is generally composed of metal filaments such as tungsten filaments and the like which can directly emit light, the filament generally has the defects of short service life, large power consumption and the like, and generally can only emit yellow light, so that the color rendering property is poor. Because the LED has the characteristics of energy conservation, long service life, high luminous efficiency, environmental protection, solid-state packaging and the like, the LED illumination market gradually replaces the traditional illumination lamp and enters various application fields.
Therefore, a series of LED filaments similar to tungsten filament designs are available on the market for assembling LED bulbs, candle lamps and the like. The existing filament lamp adopting the LED filament package can achieve 360-degree full-angle three-dimensional light emission and obtain high color rendering index (CRI > 90) and high light efficiency (more than 130 lm/W) through high-density chip layout, integration, high voltage and low current driving.
Although the photoelectric efficiency is superior to that of tungsten filament lamps, the light emitting sensation of the filament of the LED filament lamp is inferior to that of the conventional tungsten filament lamp. In the field of lighting, tungsten filament lamps are used in the market at present, and the need for achieving finer filaments (the tungsten filament can be as thin as 15 μm) is awaited for breakthrough of LED lighting. The width of the traditional LED filament is 1mm to 2mm, and the traditional LED filament cannot show the aesthetic feeling of the traditional filament when being lightened. In addition, the LED filament lamp still has certain limitation in power and heat dissipation, and the poor condition of heat dissipation leads to material ageing to influence photoelectric function.
Disclosure of Invention
In order to overcome the defects of the prior art, the technical scheme provided by the invention comprises the following steps:
a filament phosphor strip, comprising: the width of the filament fluorescent strip is less than or equal to 100 mu m.
Preferably, the width of the filament fluorescent strip is less than or equal to 50 μm.
Preferably, the width of the filament fluorescent strip is less than or equal to 30 mu m.
Preferably, the width of the filament fluorescent strip is less than or equal to 10 mu m.
Preferably, the structure of the filament fluorescent strip is strip-shaped or coil-shaped or spiral.
A filament lamp comprising: the lamp bulb comprises a lamp bulb shell, a lamp holder for conducting electricity, a fluorescent strip rack arranged on the lamp holder, an invisible ultraviolet light source and a filament fluorescent strip arranged on the fluorescent strip rack, wherein the width of the filament fluorescent strip is less than or equal to 100 mu m.
Preferably, the wavelength of the invisible ultraviolet light source is between 200nm and 380 nm.
Preferably, the filament phosphor strip is used for absorbing invisible ultraviolet light to excite visible light generation.
Preferably, the invisible ultraviolet light source is radiated by an LED ultraviolet chip.
Preferably, the bulb shell is made of a material with poor ultraviolet transmittance to control the leakage of ultraviolet radiation, such as a UV-resistant polyester fiber, a high UV-resistant glass fiber reinforced nylon 6 material, and the like.
Preferably, the lamp cap is selected with a function of facilitating heat dissipation of the light source.
Preferably, the lamp head is made of materials with poor ultraviolet transmittance to control the leakage of ultraviolet radiation.
A method for manufacturing a filament lamp comprises the following process steps:
(1) providing a lamp holder for conducting electricity and a non-visible ultraviolet light source, and arranging a fluorescent strip on the lamp holder;
(2) manufacturing a filament fluorescent strip, wherein the width of the filament fluorescent strip is less than or equal to 100 mu m;
(3) and (4) placing the filament fluorescent strip on a fluorescent strip rack, and arranging a bulb shell to finish the package lamp.
Preferably, the method for manufacturing the filament fluorescent strip comprises the following steps: laser patterning technology or high-temperature sintering technology or a line dipping fluorescent glue mode or a dispensing mode or a printing mode or a spraying mode.
Preferably, the filament phosphor strip is used for absorbing invisible ultraviolet light to excite visible light generation.
Preferably, the invisible ultraviolet light source is radiated by an LED ultraviolet chip.
Preferably, the width of the filament fluorescent strip is less than or equal to 50 μm.
Preferably, the width of the filament fluorescent strip is less than or equal to 30 mu m.
Preferably, the width of the filament fluorescent strip is less than or equal to 10 mu m.
Compared with the prior art, the filament fluorescent strip, the filament lamp and the manufacturing method thereof provided by the invention at least have the following technical effects:
the invention uses a plurality of very fine fluorescent strips (the width is not more than 100 mu m) manufactured by different processes, and visible light (such as white light) is generated by the excitation of the invisible light ultraviolet light source in the lamp shell, thereby achieving better luminous sensation and improving the heat dissipation effect, and further solving the problem that the aging is influenced by the heat dissipation of the light source of the conventional LED filament lamp. In addition, the lamp shell is made of anti-UV materials to control the leakage of ultraviolet rays, and can be used for a germicidal lamp if necessary.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. Furthermore, the drawing figures are for a descriptive summary and are not drawn to scale.
Fig. 1 is a schematic structural view of a filament lamp of embodiment 1;
FIGS. 2 to 4 are schematic views of a process for manufacturing the filament lamp of embodiment 2;
FIGS. 5 to 8 are schematic diagrams illustrating the production of filament fluorescent strips of the filament lamp in FIG. 3.
The reference numerals in the figures denote the following: 10: a lamp cap; 11. 12: a phosphor strip holder; 13: a non-visible ultraviolet light source; 14: a filament phosphor strip; 15: a bulb shell; 20. 21: a substrate; 22: a groove; 23: lines; 24: fluorescent glue.
Detailed Description
While the filament phosphor strip, filament lamp and method of making the same of the present invention will be described in detail below with reference to the schematic drawings, before further describing the invention, it is to be understood that the invention is not limited to the particular embodiments described below, as modifications may be made to the particular embodiments. It is also to be understood that the embodiments are presented by way of illustration, not limitation, since the scope of the invention is defined by the appended claims. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art.
Example 1
As shown in fig. 1, the present embodiment provides a filament lamp, which includes: the lamp bulb comprises a lamp bulb shell 15, a lamp holder 10 used for conducting electricity, fluorescent strip frames 11 and 12 arranged on the lamp holder 10, an invisible ultraviolet light source 13 and a filament fluorescent strip 14 arranged on the fluorescent strip frame, wherein the width of the filament fluorescent strip 14 is less than or equal to 100 micrometers.
The invisible ultraviolet light source is preferably radiated by an LED ultraviolet chip, and can also be radiated by a common conventional mercury lamp, and the wavelength of the invisible ultraviolet light source is between 200nm and 380nm, and specifically can be long-wave (code number UV-A, wavelength 315-380 nm), medium-wave (UV-B, 280-315 nm) and short-wave (UV-C, 200-280 nm).
The structure of the fluorescent strip frame, which is preferably made of non-conductive material, can be made into a strip shape or a ring shape, and the embodiment is preferably made into a combination of 2 transverse ring-shaped fluorescent strip frames 11 and 2 vertical strip-shaped fluorescent strip frames 12.
The filament phosphor stripes 14 are used for absorbing the spectrum emitted by the invisible ultraviolet light 13 so as to excite the visible light. The structure of the filament fluorescent strip can be strip-shaped, coil-shaped or spiral, the length of the filament fluorescent strip can be manufactured by different processes according to actual needs, the width can not exceed 50 micrometers, can not exceed 30 micrometers, and even can be manufactured to have a width not exceeding 10 micrometers, so that the lamp decoration effect can be improved; the number of filament phosphor strips 14 can be set as desired, and 4 strip-type filament phosphor strips are preferred in this embodiment, vertically placed and attached to the phosphor strip holder.
The bulb shell 15 is used as a packaging cover body of the filament lamp, and the material of the bulb shell is preferably a material with poor ultraviolet transmittance, namely an anti-UV material, so as to control the leakage of ultraviolet radiation, such as anti-UV polyester fiber, high anti-UV glass fiber reinforced nylon 6 material and the like; the lamp envelope 15 may also be filled with an inert gas.
The lamp cap 10 is selected to have the function of facilitating the heat dissipation of the light source and the heat dissipation of the filament lamp, and the lamp cap 10 can also have a threaded structure (not shown in the figure) electrically connected with the outside and used for fixing, so as to form a closed space with the bulb shell 15; more preferably, the lamp head 10 is made of a material with poor ultraviolet transmittance to control the leakage of ultraviolet radiation.
According to the filament lamp provided by the embodiment, the invisible light ultraviolet light source is used in the lamp shell, and the very small fluorescent strip (the width is not more than 100 micrometers) is matched to excite and generate visible light (such as white light), so that a better decorative effect is achieved, the heat dissipation effect is improved, and the problem that the light source heat dissipation of the conventional LED filament lamp affects aging is solved. In addition, the lamp shell is made of anti-UV materials to control the leakage of ultraviolet rays, and can be used for a germicidal lamp if necessary.
Example 2
The embodiment provides a manufacturing method of a filament lamp, which comprises the following process steps:
as shown in fig. 2, step (1): providing a lamp holder 10 for conducting electricity and an invisible ultraviolet light source 13, and placing fluorescent strip frames 11 and 12 on the lamp holder 10, wherein the fluorescent strip frames, preferably made of non-conducting materials, can be made into strips or rings, and in the embodiment, the fluorescent strip frames 11 in 2 transverse rings and the fluorescent strip frames 12 in 2 vertical rings are preferably made into a combination;
as shown in fig. 3, step (2): manufacturing filament fluorescent strips, wherein the width of each filament fluorescent strip is less than or equal to 100 microns, and preferably 6 strip-shaped filament fluorescent strips are transversely arranged on and attached to the fluorescent strip rack in the embodiment; the method for manufacturing the filament fluorescent strip comprises the following steps: laser patterning technology or high-temperature sintering technology or a line dipping fluorescent glue mode or a dispensing mode or a printing mode or a spraying mode.
As shown in fig. 4, step (3): the filament phosphor strip 14 is placed on a phosphor strip holder, and a bulb 15 is provided as a cover body to be sealed, thereby completing the package lamp.
Further, the method for manufacturing the filament phosphor stripe in the step (2) may adopt a laser patterning technique, a high temperature sintering technique, a method of dipping the filament into phosphor gel, a dispensing method, a printing method, a spraying method, or any combination of the foregoing methods.
As shown in fig. 5, the filament phosphor strip is fabricated using Laser Patterning, specifically: a fluorescent substrate or a substrate 20 coated with fluorescent powder is provided, the substrate can be metal or ceramic, and then a fine filament fluorescent strip 14 with the width not more than 10 mu m is formed on the substrate by etching through a laser patterning technology.
As shown in fig. 6, the filament phosphor strip is manufactured by a high temperature sintering technique, specifically: firstly, providing a substrate 21, wherein the substrate can be selected from sapphire, glass, transparent ceramic and the like, then forming a fine groove 22 by using a technology such as etching and the like, pouring or filling a fluorescent material into the groove 22, and forming a fine filament fluorescent strip 14 with the width not exceeding 30 mu m by high-temperature sintering.
As shown in fig. 7, the filament phosphor strip is manufactured by dipping lines into phosphor gel, specifically: providing a spiral base material (such as copper wire) or a line 23, then immersing the line 23 into a device containing fluorescent glue 24, taking out, drying and the like to obtain the fine filament fluorescent strip 14 with the width not more than 50 mu m.
As shown in fig. 8, the filament phosphor strip is manufactured by a dispensing method, a printing method or a spraying method, specifically: a base material 21 is provided, and then a fine filament fluorescent strip 14 with a width not exceeding 100 μm is manufactured by an auxiliary process such as yellow light etching and the like in a dispensing manner, a printing manner or a spraying manner.
It should be understood that the above-described embodiments are only some of the preferred embodiments of the present invention, and various combinations and modifications of the above embodiments can be made. The scope of the present invention is not limited to the above embodiments, and any modifications made according to the present invention are within the scope of the present invention.
Claims (6)
1. A filament lamp comprising: the lamp bulb comprises a lamp bulb shell, a conductive lamp holder, a fluorescent strip rack arranged on the lamp holder, an invisible ultraviolet light source and a filament fluorescent strip arranged on the fluorescent strip rack, wherein the width of the filament fluorescent strip is less than 100 mu m, the filament fluorescent strip is used for absorbing invisible ultraviolet light to excite the invisible ultraviolet light to generate visible light, and the filament fluorescent strip is free of the invisible ultraviolet light source.
2. A filament lamp as defined in claim 1, wherein: the invisible ultraviolet light source adopts LED ultraviolet chip radiation.
3. A filament lamp as defined in claim 1, wherein: the material of the bulb shell is selected from a UV-resistant transparent material to control the leakage of ultraviolet radiation.
4. A method for manufacturing a filament lamp comprises the following process steps:
(1) providing a lamp holder for conducting electricity and a non-visible ultraviolet light source, and arranging a fluorescent strip on the lamp holder;
(2) manufacturing a filament fluorescent strip, wherein the width of the filament fluorescent strip is less than 100 mu m, the filament fluorescent strip is used for absorbing invisible ultraviolet light to excite and generate visible light,
(3) arrange the filament phosphor strip in on the phosphor strip frame to dispose the bulb shell, accomplish package lamp, its characterized in that: the invisible ultraviolet light source is not arranged on the filament fluorescent strip.
5. The method of claim 4, wherein: the method for manufacturing the filament fluorescent strip comprises the following steps: laser patterning technology or high-temperature sintering technology or a line dipping fluorescent glue mode or a dispensing mode or a printing mode or a spraying mode.
6. The method of claim 4, wherein: the invisible ultraviolet light source adopts LED ultraviolet chip radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637973.XA CN107559621B (en) | 2017-07-31 | 2017-07-31 | Filament fluorescent strip, filament lamp and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637973.XA CN107559621B (en) | 2017-07-31 | 2017-07-31 | Filament fluorescent strip, filament lamp and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107559621A CN107559621A (en) | 2018-01-09 |
| CN107559621B true CN107559621B (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710637973.XA Active CN107559621B (en) | 2017-07-31 | 2017-07-31 | Filament fluorescent strip, filament lamp and manufacturing method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205092264U (en) * | 2015-08-25 | 2016-03-16 | 江苏华英光宝科技股份有限公司 | Cover brilliant high temperature resistant PI film printing opacity reelability filament |
| CN106151904A (en) * | 2016-08-24 | 2016-11-23 | 胡溢文 | A kind of LED winding filament and preparation technology thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005067004A1 (en) * | 2004-01-07 | 2005-07-21 | Matsushita Electric Industrial Co., Ltd. | Incandescent lamp and filament for incandescent lamp |
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- 2017-07-31 CN CN201710637973.XA patent/CN107559621B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205092264U (en) * | 2015-08-25 | 2016-03-16 | 江苏华英光宝科技股份有限公司 | Cover brilliant high temperature resistant PI film printing opacity reelability filament |
| CN106151904A (en) * | 2016-08-24 | 2016-11-23 | 胡溢文 | A kind of LED winding filament and preparation technology thereof |
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| CN107559621A (en) | 2018-01-09 |
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Effective date of registration: 20231025 Address after: Yuanqian village, Shijing Town, Nan'an City, Quanzhou City, Fujian Province Patentee after: QUANZHOU SAN'AN SEMICONDUCTOR TECHNOLOGY Co.,Ltd. Address before: 361009 no.1721-1725, Luling Road, Siming District, Xiamen City, Fujian Province Patentee before: XIAMEN SANAN OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |