CN106015973A - LED lamp filament - Google Patents
LED lamp filament Download PDFInfo
- Publication number
- CN106015973A CN106015973A CN201610570670.6A CN201610570670A CN106015973A CN 106015973 A CN106015973 A CN 106015973A CN 201610570670 A CN201610570670 A CN 201610570670A CN 106015973 A CN106015973 A CN 106015973A
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- led filament
- circuit board
- chip
- bulb
- flexible circuit
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Abstract
The invention relates to the technical field of illumination, in particular to an LED lamp filament arranged in a bulb. The LED lamp filament comprises a flexible circuit board and a plurality of chips, wherein the chips are distributed on the flexible circuit board, and each chip is coated with fluorescent powder and drives the fluorescent powder to illuminate. The specially manufactured flexible circuit board is used, the chips and the fluorescent powder are attached to the flexible circuit board to form the flexible LED lamp filament, and the manufactured LED lamp filament can be arranged in any special shape in the bulb. The problems of non-uniform outlet light and light distribution of the LED lamp filament are solved, the manufactured LED lamp filament can realize 360-dgree illumination without a dead angle, and the outlet light is uniform.
Description
Technical field
The present invention relates to lighting technical field, particularly relate to a kind of LED filament.
Background technology
Along with constantly increasing and economic sustainable development of population in the world, energy shortage and problem of environmental pollution increasingly highlight, and the whole world is energy-conservation to be continued to increase with environmental protection pressure.LED(light-emitting diode, light emitting diode) it is introduced into illumination application as a kind of revolutionary technological innovation.LED illumination product has the advantage that energy-conserving and environment-protective, life-span length and caloric value are low, and increasing LED filament lamp the most gradually replaces the illuminating products such as traditional electric filament lamp.
But, the LED filament that on market, existing LED filament lamp is used is the most all the LED strand of inflexibility, and procedure of processing and structure are complicated, and owing to not bending, when arrangement by great limitation, easily cause the phenomenon that LED filament lamp light-out effect is uneven, it is impossible to meet light distribution requirements.
Summary of the invention
In view of above-mentioned technical problem, it is desirable to provide a kind of flexible LED filament, utilize the shape that special flexible lamp strip arrangement is special, carry out solution and decided that light is uneven and luminous intensity distribution problem.
The present invention solves the main technical schemes of above-mentioned technical problem:
A kind of LED filament, it is characterised in that being arranged in bulb, described LED filament includes:
Flexible circuit board；
Some chips, are distributed on described flexible circuit board, and are coated with fluorescent material on every described chip, light-emitting phosphor described in described chip drives.
Preferably, above-mentioned LED filament, wherein, described flexible circuit board is provided with conducting wire, and described conducting wire electrically connects with chip every described.
Preferably, above-mentioned LED filament, wherein, described flexible circuit board is printed circuit board or thin metal matrix plate.
Preferably, above-mentioned LED filament, wherein, described fluorescent material is that strip or mutually isolated multiple block distributions are on described flexible circuit board.
Preferably, above-mentioned LED filament, wherein, described chip is flip-chip, and described fluorescent material is coated on the back side of described flip-chip.
Preferably, above-mentioned LED filament, wherein, described chip is surface mount chip, and described fluorescent material is coated on the surface of described surface mount chip.
Preferably, above-mentioned LED filament, wherein, the thickness of described flexible circuit board is 0.2-0.5mm, and width is 2-15mm.
Preferably, above-mentioned LED filament, wherein, the material of described flexible circuit board is copper or aluminum.
Preferably, above-mentioned LED filament, wherein, described LED filament is that Double helix taper is vertically arranged in described bulb.
Preferably, above-mentioned LED filament, wherein, described LED filament is that single-screw taper is vertically arranged in described bulb.
Preferably, above-mentioned LED filament, wherein, described LED filament is that the taper of single-screw two is arranged in described bulb.
Preferably, above-mentioned LED filament, wherein, described LED filament is that the taper of Double helix two is arranged in described bulb.
Preferably, above-mentioned LED filament, wherein, described LED filament is arranged in described bulb ringwise.
Preferably, above-mentioned LED filament, wherein, described LED filament is fixed in described bulb by a stem stem.
Preferably, above-mentioned LED filament, wherein, described bulb is installed on a lamp holder, and described LED filament is electrically connected with the power supply being arranged in described lamp holder by spot welding or scolding tin.
Technique scheme has the advantage that or beneficial effect: the LED filament of the present invention, utilize special flexible circuit board, and the chip that is distributed on flexible PCB and fluorescent material, arrange out in bulb special shape, solve LED filament lamp and go out that light is uneven and luminous intensity distribution problem, the LED filament lamp made is made to realize 360 ° without dead angle luminescence, uniform in light emission.
Accompanying drawing explanation
With reference to appended accompanying drawing, more fully to describe embodiments of the invention.But, appended accompanying drawing is merely to illustrate and illustrates, is not intended that limitation of the scope of the invention.
Fig. 1 a and Fig. 1 b is two kinds of different structure charts of the LED filament of the present invention；
Fig. 2-Fig. 6 is the schematic diagram of the LED filament of the present invention different arrangement modes in bulb.
Detailed description of the invention
In the following description, a large amount of concrete details is given to provide more thorough understanding of the invention.Except of course that outside these describe in detail, the present invention can also have other embodiments.
The LED filament of the present invention is elaborated below in conjunction with specific embodiment and accompanying drawing.
The LED filament of the present invention, including flexible circuit board 10, preferably PCB(Printed
Circuit board, printed circuit board) wiring board；Some chips, are uniformly distributed and are arranged at the surface being provided with conducting wire in PCB 10；And fluorescent material, it is coated on chip surface.
Wherein, this chip can be SMD (Surface Mounted Device, surface mount device) chip, and fluorescent material is coated on this SMD(surface mount chip) surface；Or this chip can be flip-chip, and fluorescent material is coated on the back side of this flip-chip.And preferably, chip is (because chip surface is covered by fluorescent material, chip cannot be indicated the most in the drawings) it is divided into some pieces to be uniformly distributed in PCB 10, chip coats after fluorescent material, the phosphor strip 11 of whole piece shape as shown in Figure 1a or the fluorescence block 12 of homogeneous bulky distribution as shown in Figure 1 b can be formed.Should be noted that, the two kinds of LED filament that Fig. 1 a is formed after showing coating fluorescent material, wherein label 11 represents that fluorescent material uniformly and is continuously coated on the chip surface of bulk and the surface of the part PCB 10 of exposure, thus forms the situation of the phosphor strip of whole piece shape；Label 12 shown in Fig. 1 b represents that fluorescent material is only coated on the chip surface of bulk, forms equally distributed one piece of block fluorescence area.
As a preferred embodiment, PCB 10 be can arbitrary shape bending flexible circuit board (Flexible Printed Circuit, FPC) or thin metal matrix plate, its thickness is 0.2-0.5mm, and width is 2-15mm, and material is copper or aluminum.Employing can arbitrary shape bending PCB, procedure of processing and the structure complexity of PCB can be greatly simplified, and when assembling filament lamp, by can the filament made of PCB of arbitrary shape bending realizing bending in bulb and arrange, break the limitation of LED filament arrangement, thus ensured that the LED filament lamp light-out effect made is uniform.
When actual assembled manufactures LED filament lamp, can refer to Fig. 2-Fig. 6, the flexible LED filament (hereinafter referred filament 1) of the present invention is fixed in bulb (also referred to as cell-shell) 3 by stem stem 2, bulb 3 is fixed on above lamp holder 4, it is embedded at lamp holder 4 and is provided with power supply 5, filament 1 is electrically connected by spot welding or scolding tin with power supply 5, thus realizes power supply 5 and provide electric energy for filament 1.Inside bulb 3, falling heat-transfer gas 6.
As preferred embodiment, due to have employed can arbitrary shape bending PCB 10, when assembling LED filament lamp, the filament 1 arrangement mode in bulb 3 can change flexibly, such as in figure 2 it is shown, filament 1 uses the vertical arrangement mode of Double helix taper, it is arranged in bulb 3,360 degree can be realized without dead angle luminescence, uniform in light emission；
Or as it is shown on figure 3, filament 1 uses the vertical arrangement mode of single-screw taper, it is arranged in bulb 3,360 degree can be realized equally without dead angle luminescence, uniform in light emission；
Or as shown in Figure 4, filament 1 uses single-screw two taper arrangement mode, is arranged in bulb 3,360 degree can be realized equally without dead angle luminescence, uniform in light emission；
Or as it is shown in figure 5, filament 1 uses Double helix two taper arrangement mode, it is arranged in bulb 3,360 degree can be realized equally without dead angle luminescence, uniform in light emission；
Or as shown in Figure 6, filament 1 uses annular arrangement mode (during vertical view, filament 1 is similar to a flower shape), is arranged in bulb 3,360 degree can be realized equally without dead angle luminescence, uniform in light emission.
In sum, what the present invention provided can the flexible LED filament of arbitrary shape bending, utilize special flexible circuit board, in flexible circuit board, pasting chip and fluorescent material are to make LED filament, this LED filament made can be arranged out the most special shape in bulb, solve LED filament lamp and go out that light is uneven and luminous intensity distribution problem so that the LED filament lamp made realizes 360 ° without dead angle luminescence, uniform in light emission.
For a person skilled in the art, after reading described above, various changes and modifications will be apparent to undoubtedly.Therefore, appending claims should regard whole variations and modifications of true intention and the scope containing the present invention as.In Claims scope, the scope of any and all equivalence and content, be all considered as still belonging to the intent and scope of the invention.
Claims (15)
1. a LED filament, it is characterised in that be arranged in bulb, described LED filament includes:
Flexible circuit board；
Some chips, are distributed on described flexible circuit board, and are coated with fluorescent material on every described chip, light-emitting phosphor described in described chip drives.
2. LED filament as claimed in claim 1, it is characterised in that be provided with conducting wire in described flexible circuit board, and described conducting wire electrically connects with chip every described.
3. LED filament as claimed in claim 1, it is characterised in that described flexible circuit board is printed circuit board or thin metal matrix plate.
4. LED filament as claimed in claim 1, it is characterised in that described fluorescent material is that strip or mutually isolated multiple block distributions are on described flexible circuit board.
5. LED filament as claimed in claim 1, it is characterised in that described chip is flip-chip, and described fluorescent material is coated on the back side of described flip-chip.
6. LED filament as claimed in claim 1, it is characterised in that described chip is surface mount chip, and described fluorescent material is coated on the surface of described surface mount chip.
7. LED filament as claimed in claim 1, it is characterised in that the thickness of described flexible circuit board is 0.2-0.5mm, and width is 2-15mm.
8. LED filament as claimed in claim 1, it is characterised in that the material of described flexible circuit board is copper or aluminum.
9. LED filament as claimed in claim 1, it is characterised in that described LED filament is that Double helix taper is vertically arranged in described bulb.
10. LED filament as claimed in claim 1, it is characterised in that described LED filament is that single-screw taper is vertically arranged in described bulb.
11. LED filament as claimed in claim 1, it is characterised in that described LED filament is that the taper of single-screw two is arranged in described bulb.
12. LED filament as claimed in claim 1, it is characterised in that described LED filament is that the taper of Double helix two is arranged in described bulb.
13. LED filament as claimed in claim 1, it is characterised in that described LED filament is arranged in described bulb ringwise.
14. LED filament as claimed in claim 1, it is characterised in that described LED filament is fixed in described bulb by a stem stem.
15. LED filament as claimed in claim 1, it is characterised in that described bulb is installed on a lamp holder, described LED filament is electrically connected with the power supply being arranged in described lamp holder by spot welding or scolding tin.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610570670.6A CN106015973A (en) | 2016-07-19 | 2016-07-19 | LED lamp filament |
| PCT/CN2016/098914 WO2018014442A1 (en) | 2016-07-19 | 2016-09-13 | Led filament |
| US16/250,727 US20190226643A1 (en) | 2016-07-19 | 2019-01-17 | Led filament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610570670.6A CN106015973A (en) | 2016-07-19 | 2016-07-19 | LED lamp filament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106015973A true CN106015973A (en) | 2016-10-12 |
Family
ID=57116590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610570670.6A Pending CN106015973A (en) | 2016-07-19 | 2016-07-19 | LED lamp filament |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106015973A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641778A (en) * | 2016-11-17 | 2017-05-10 | 浙江亿米光电科技有限公司 | Bulb provided with lamp filaments of self-forming structure |
| CN106949385A (en) * | 2017-01-22 | 2017-07-14 | 南昌大学 | A kind of full angle light extracting LED filament |
| CN106949386A (en) * | 2017-01-22 | 2017-07-14 | 南昌大学 | A kind of flexible LED filament |
| WO2018113115A1 (en) * | 2016-12-22 | 2018-06-28 | 涂君 | Led light bulb wick structure made of flexible filament emitting light over 360°, and method for manufacturing same |
| EP3708901A1 (en) * | 2019-03-14 | 2020-09-16 | Xiamen Eco Lighting Co., Ltd. | Led light bulb |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002057371A (en) * | 2000-08-15 | 2002-02-22 | Hukuyo Denkyu Kk | Chain led light source structure |
| EP2236907A2 (en) * | 2009-04-02 | 2010-10-06 | Liquidleds Lighting Corporation | LED bulb |
| CN202252991U (en) * | 2011-09-07 | 2012-05-30 | 王元成 | LED (Light-emitting Diode) lamp bulb |
| CN104465638A (en) * | 2014-12-05 | 2015-03-25 | 苏州紫昱天成光电有限公司 | LED lamp and filament thereof |
| CN205806969U (en) * | 2016-07-19 | 2016-12-14 | 上海顿格电子贸易有限公司 | A kind of LED filament |
-
2016
- 2016-07-19 CN CN201610570670.6A patent/CN106015973A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002057371A (en) * | 2000-08-15 | 2002-02-22 | Hukuyo Denkyu Kk | Chain led light source structure |
| EP2236907A2 (en) * | 2009-04-02 | 2010-10-06 | Liquidleds Lighting Corporation | LED bulb |
| CN202252991U (en) * | 2011-09-07 | 2012-05-30 | 王元成 | LED (Light-emitting Diode) lamp bulb |
| CN104465638A (en) * | 2014-12-05 | 2015-03-25 | 苏州紫昱天成光电有限公司 | LED lamp and filament thereof |
| CN205806969U (en) * | 2016-07-19 | 2016-12-14 | 上海顿格电子贸易有限公司 | A kind of LED filament |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641778A (en) * | 2016-11-17 | 2017-05-10 | 浙江亿米光电科技有限公司 | Bulb provided with lamp filaments of self-forming structure |
| WO2018113115A1 (en) * | 2016-12-22 | 2018-06-28 | 涂君 | Led light bulb wick structure made of flexible filament emitting light over 360°, and method for manufacturing same |
| CN106949385A (en) * | 2017-01-22 | 2017-07-14 | 南昌大学 | A kind of full angle light extracting LED filament |
| CN106949386A (en) * | 2017-01-22 | 2017-07-14 | 南昌大学 | A kind of flexible LED filament |
| EP3708901A1 (en) * | 2019-03-14 | 2020-09-16 | Xiamen Eco Lighting Co., Ltd. | Led light bulb |
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Application publication date: 20161012 |
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