CN101818865A - Led lamp tube - Google Patents
Led lamp tube Download PDFInfo
- Publication number
- CN101818865A CN101818865A CN201010128543A CN201010128543A CN101818865A CN 101818865 A CN101818865 A CN 101818865A CN 201010128543 A CN201010128543 A CN 201010128543A CN 201010128543 A CN201010128543 A CN 201010128543A CN 101818865 A CN101818865 A CN 101818865A
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- Prior art keywords
- fluorescent tube
- installation portion
- circuit board
- led fluorescent
- led
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Abstract
The invention discloses an LED lamp tube which comprises a heat dissipation shell, a lampshade, end covers positioned at two ends of the heat dissipation shell and the lampshade, a circuit board fixedly connected with the heat dissipation shell and LED chips positioned on the circuit board, wherein the heat dissipation shell has a curved surface with an arc-shaped cross section and is fixedly connected with the circuit board through the curved surface. Therefore, when the circuit board and the curved surface are combined, the LED chips positioned at different positions on the circuit board have different normal directions, and further, the view angle of the whole LED lamp tube is enlarged.
Description
Technical field
The present invention relates to LED (light emitting diode; Light Emitting Diode) technical field of lamps more particularly, relates to a kind of LED fluorescent tube that has than the large illuminating angle degree.
Background technology
In recent years, the LED light fixture receives much concern because of energy-conservation, more environmental protection, efficient height, characteristics such as volume is little, the life-span is longer, and the LED light fixture is replacing traditional incandescent lamp and fluorescent tube and as the main flow illuminations.Meanwhile, along with the development of clean energy resource efficiency techniques and the enhancing day by day of people's environmental protection concept, increasing family and mechanism all will adopt the LED light fixture to throw light on.Under this trend, guarantee being perfectly safe of LED light fixture, potential safety problem such as prevent to get an electric shock, just seeming is even more important.
Please refer to Fig. 1, two circuit boards 150 that a kind of LED fluorescent tube 100 of the prior art comprises heat-dissipating casing 110, lampshade (not shown), is positioned at the end cap 120 at described heat-dissipating casing 110 and lampshade two ends, be electrically connected by electrical connector 145, be positioned at the LED lamp pearl 170 on described two circuit boards 150, the driving (not shown) that is positioned at the contact pin 180 on the described end cap 120 and is connected with two circuit boards 150 respectively.The LED fluorescent tube of this surface mounted (surface mount) structure only has the visual angle about 120 ° usually, and in high ceiling and cold store, needs the LED fluorescent tube to have 180 ° visual angle (Viewing Angle) usually.
Please refer to Fig. 2, another kind of LED fluorescent tube 1000 of the prior art has a bigger visual angle, and it comprises that a plastic casing 1100 and cross section are the circuit board 1200 of H shape.On the horizontal part 1300 of described circuit board 1200, be provided with three groups of LED lamp pearls 1301,1401,1501 with different normal directions.Wherein, LED lamp pearl 1401 is positioned at diagram plane 1400, and LED lamp pearl 1501 is positioned at diagram plane 1500.And if, when increasing with respect to the horizontal plane angle of plane 1400,1500, need on horizontal part 1300, be drilled with axis and with respect to the horizontal plane have 67.5 ° of inclined holes, and this is impracticable on technology to 87 ° of angles in order to reach 180 ° visual angle.In addition, because the restriction of the baffle portion 1600,1601 of both sides, circuit board 1200 top, the visual angle of fluorescent tube also is difficult to enlarge.
In addition, when the consumer installs above-mentioned LED fluorescent tube, also exist bigger potential safety hazard.For example, when on the conventional fluorescent lamp socket, the LED fluorescent tube being installed, when if the consumer inserts the high-tension end of lamp socket with the contact pin shown in the figure (being commonly called as live wire), though do not constitute the loop at the driving and the neutral conductor (being commonly called as ground wire), wherein do not have electric current to pass through, but wherein had certain electromotive force, if when the consumer touches the contact pin of the other end at this moment, will get shocked, thereby security incident takes place.
All there is above-mentioned potential safety hazard in all on the market LED fluorescent tubes, and do not take corresponding safety measure to be prevented.Whether the consumer is shocked by electricity, and depends on whether contact pin is inserted into the high-tension end of lamp socket earlier.Therefore, the consumer exist 50% by shock hazard.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of LED fluorescent tube, and it has wideer visual angle.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of LED fluorescent tube is provided, comprise heat-dissipating casing, lampshade, be positioned at described heat-dissipating casing and lampshade two ends end cap, the circuit board of fixedlying connected with described heat-dissipating casing, be positioned at the led chip on the described circuit board, described heat-dissipating casing has the curved curved surface of a cross section, and fixedlys connected with described circuit board by described curved surface.
More specifically, described circuit board is a flexible PCB.
More specifically, described curved surface comprises first installation portion parallel with horizontal plane, is positioned at the described first installation portion both sides and symmetrically arranged second installation portion and the 3rd installation portion, and the angle between described first installation portion and described second installation portion and described first installation portion and described the 3rd installation portion is not less than 30 °.
More specifically, described led chip is provided with along the fluorescent tube length direction, and comprises three groups, respectively corresponding described first installation portion of described three groups of led chips, second installation portion and the 3rd installation portion setting.
More specifically, the half angle of view of described three groups of led chips is not less than 60 °.
More specifically, described fluorescent tube also comprises two groups of contact pins that are positioned on described two end caps and the drive part that is electrically connected with described circuit board respectively, is respectively equipped with Protection switch on the circuit between described drive part and the described two groups of contact pins.
More specifically, described Protection switch is realized break-make by the mode of mechanical key control or sensing.
More specifically, described drive part comprises the driving shell of fixedlying connected by screw with described heat-dissipating casing, forms heat dissipation channel between described driving shell and the described heat-dissipating casing.
More specifically, described driving shell be semi-cylindrical and have with described heat-dissipating casing in the consistent spatial accommodation of cavity direction.
More specifically, described end cap comprises end cap shell, is positioned at the end cap circuit board of described end cap shell, and described contact pin is fixedlyed connected with described end cap circuit board with Protection switch.
Like this, when described circuit board is combined with described curved surface, can make to be positioned at that the led chip of diverse location has different normal directions on the circuit board, thus the visual angle that increases the whole LED fluorescent tube.And owing to be provided with Protection switch, no matter whether the user inserts the high-tension end of lamp socket earlier with contact pin, only after two groups of contact pins all are installed in the lamp socket, restart Protection switch, just can make to form between city's power supply and the drive part to be electrically connected, therefore thoroughly eliminate the potential danger in the user installation process.
Description of drawings
Fig. 1 is that a kind of LED fluorescent tube is removed schematic perspective view behind the lampshade in the prior art;
Fig. 2 is the cross-sectional schematic of another kind of LED fluorescent tube in the prior art;
Fig. 3 is the sectional perspective schematic diagram after a preferred embodiment of the present invention is removed lampshade;
Fig. 4 is a cross-sectional schematic embodiment illustrated in fig. 3;
Fig. 5 is a wide visual angle schematic diagram embodiment illustrated in fig. 3;
Fig. 6 is a circuit theory schematic diagram embodiment illustrated in fig. 3;
Fig. 7 is the middle schematic perspective view that drives shell embodiment illustrated in fig. 3;
Fig. 8 is the schematic perspective view of the end cap in embodiment illustrated in fig. 3.
The specific embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Please refer to Fig. 3 and Fig. 4, be a preferred embodiment of the present invention, this LED fluorescent tube comprises heat-dissipating casing 201, lampshade 202, is positioned at the end cap 260 at described heat-dissipating casing 201 and lampshade 202 two ends, the circuit board 205 of fixedlying connected with described heat-dissipating casing 201, be positioned at the led chip 212 on the described circuit board 205.Described heat-dissipating casing 201 has the curved curved surface of a cross section 211, and fixedlys connected with described circuit board 205 by described curved surface 211.Like this, when described circuit board 205 is combined with described curved surface 211, can make the led chip 212 that is positioned at diverse location on the circuit board 205 have different normal directions, thereby increase the visual angle of whole LED fluorescent tube.
Below said structure is further described in detail respectively.
Please refer to Fig. 4 and Fig. 5, in the present embodiment, described circuit board 205 is a flexible PCB.Described curved surface 211 comprises the first installation portion 211A parallel with horizontal plane, is positioned at the described first installation portion 211A both sides and symmetrically arranged second installation portion 211B and the 3rd installation portion 211C.Angle between described first installation portion 211A and the described second installation portion 211B and the described first installation portion 211A and described the 3rd installation portion 211C is not less than 30 °.Described led chip 212 is along the setting of fluorescent tube length direction and comprise three groups, and described three groups of led chips, the 212 respectively corresponding described first installation portion 211A, second installation portion 211B and the 3rd installation portion 211C are provided with.And the half angle of view of three groups of led chips 212 is not less than 60 °.Like this, the visual angle of the LED fluorescent tube of present embodiment can be above 180 °.
Please in conjunction with reference Fig. 4 and Fig. 7, the cross section of described shell 201 is semicircular in shape roughly, and can adopt heat conductivility good metal such as aluminium, copper or alloy material to make.One side of its corresponding LED fluorescent tube exiting surface forms the curved surface 211 in order to install and fix circuit board 205.Extend location division in described curved surface 211 both sides, in order to realize and being connected of Transparent lamp shade 202 with mounting groove.In order to enlarge area of dissipation, described shell 201 forms a plurality of strip projections in a side opposite with LED fluorescent tube exiting surface.In addition, on the length direction of described shell 201, be provided with the through hole that connects described shell 201, be convenient to circulation of air and dispel the heat.
Please in conjunction with reference Fig. 6, present embodiment also comprises two groups of contact pins 250 that are positioned on described two end caps 260 and the drive part 400 that is electrically connected with described circuit board 205 respectively, is respectively equipped with Protection switch 220 on the circuit between described drive part 400 and the described two groups of contact pins 250.Like this, no matter whether the user inserts the high-tension end of lamp socket earlier with contact pin 250, only after two groups of contact pins 250 all are installed in the lamp socket, restart Protection switch 220, just can make to form between city's power supply and the drive part 400 to be electrically connected, therefore thoroughly eliminate the potential danger in the user installation process.
In the present embodiment, described Protection switch 220 can be realized break-make by the mode of mechanical key control or remote control.When adopting mechanical key control, can adopt mechanical key of the prior art.When adopting the sensing mode, can adopt infrared sensor, electromagnetism sensor, photo switches, photo sensors etc.
Please in conjunction with reference Fig. 7, described drive part 400 comprises the driving shell 401 of fixedlying connected by screw with described heat-dissipating casing 201, the driving that is positioned at described driving shell 401 etc.A flange arrangement 411 is extended at the two ends of described driving shell 401 respectively, in order to fixedly connected with described shell 201.In the present embodiment, described driving shell 401 is semi-cylindrical and has and the described heat-dissipating casing 201 interior consistent spatial accommodations 412 of cavity direction.In addition, form heat dissipation channel 404 between described driving shell flange arrangement 411 1 sides and the described curved surface 211.
Please in conjunction with reference Fig. 8, described end cap 260 comprises end cap shell 261, is positioned at the end cap circuit board (not shown) of described end cap shell 261, the jack that end cap shell 261 is provided with the Protection switch installing hole and plugs for described contact pin 250.In the present embodiment, described contact pin 250 is fixedlyed connected with described end cap circuit board with Protection switch 220.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. LED fluorescent tube, comprise heat-dissipating casing, lampshade, be positioned at described heat-dissipating casing and lampshade two ends end cap, the circuit board of fixedlying connected with described heat-dissipating casing, be positioned at the led chip on the described circuit board, it is characterized in that: described heat-dissipating casing has the curved curved surface of a cross section, and fixedlys connected with described circuit board by described curved surface.
2. LED fluorescent tube as claimed in claim 1 is characterized in that: described circuit board is a flexible PCB.
3. LED fluorescent tube as claimed in claim 2, it is characterized in that: described curved surface comprises first installation portion parallel with horizontal plane, is positioned at the described first installation portion both sides and symmetrically arranged second installation portion and the 3rd installation portion, and the angle between described first installation portion and described second installation portion and described first installation portion and described the 3rd installation portion is not less than 30 °.
4. LED fluorescent tube as claimed in claim 3 is characterized in that: described led chip is provided with along the fluorescent tube length direction, and comprises three groups, respectively corresponding described first installation portion of described three groups of led chips, second installation portion and the 3rd installation portion setting.
5. LED fluorescent tube as claimed in claim 4 is characterized in that: the half angle of view of described three groups of led chips is not less than 60 °.
6. LED fluorescent tube as claimed in claim 1, it is characterized in that: described fluorescent tube also comprises two groups of contact pins that are positioned on described two end caps and the drive part that is electrically connected with described circuit board respectively, is respectively equipped with Protection switch on the circuit between described drive part and the described two groups of contact pins.
7. LED fluorescent tube as claimed in claim 6 is characterized in that: described Protection switch is realized break-make by the mode of mechanical key control or sensing.
8. LED fluorescent tube as claimed in claim 6 is characterized in that: described drive part comprises the driving shell of fixedlying connected by screw with described heat-dissipating casing, forms heat dissipation channel between described driving shell and the described heat-dissipating casing.
9. LED fluorescent tube as claimed in claim 8 is characterized in that: described driving shell be semi-cylindrical and have with described heat-dissipating casing in the consistent spatial accommodation of cavity direction.
10. LED fluorescent tube as claimed in claim 1 is characterized in that: described end cap comprises end cap shell, is positioned at the end cap circuit board of described end cap shell, and described contact pin is fixedlyed connected with described end cap circuit board with Protection switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010128543.3A CN101818865B (en) | 2010-03-19 | 2010-03-19 | Led lamp tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010128543.3A CN101818865B (en) | 2010-03-19 | 2010-03-19 | Led lamp tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101818865A true CN101818865A (en) | 2010-09-01 |
| CN101818865B CN101818865B (en) | 2017-05-03 |
Family
ID=42654068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010128543.3A Expired - Fee Related CN101818865B (en) | 2010-03-19 | 2010-03-19 | Led lamp tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101818865B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078576A1 (en) * | 2011-11-30 | 2013-06-06 | 宁波赛尔富电子有限公司 | Illuminating lamp with uniform illuminance |
| CN104197214A (en) * | 2014-08-11 | 2014-12-10 | 太仓欧锐智能化工程有限公司 | LED fluorescent lamp |
| WO2016033954A1 (en) * | 2014-09-04 | 2016-03-10 | 袁志贤 | Novel led lamp |
| CN105757483A (en) * | 2014-09-23 | 2016-07-13 | 奥斯兰姆施尔凡尼亚公司 | Tubular LED lamp with flexible circuit board |
| CN108730794A (en) * | 2017-04-17 | 2018-11-02 | 通用电气公司 | LED light |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2136552A (en) * | 1983-03-18 | 1984-09-19 | Linolite Ltd | Light fittings |
| CN2864336Y (en) * | 2005-10-21 | 2007-01-31 | 官有占 | Energy-saving lighting lamp |
| CN101187448A (en) * | 2006-11-16 | 2008-05-28 | 宁波安迪光电科技有限公司 | LED spotlight |
| CN201377712Y (en) * | 2009-07-23 | 2010-01-06 | 深圳市长方照明工业有限公司 | SMD-LED fluorescent lamp |
-
2010
- 2010-03-19 CN CN201010128543.3A patent/CN101818865B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2136552A (en) * | 1983-03-18 | 1984-09-19 | Linolite Ltd | Light fittings |
| CN2864336Y (en) * | 2005-10-21 | 2007-01-31 | 官有占 | Energy-saving lighting lamp |
| CN101187448A (en) * | 2006-11-16 | 2008-05-28 | 宁波安迪光电科技有限公司 | LED spotlight |
| CN201377712Y (en) * | 2009-07-23 | 2010-01-06 | 深圳市长方照明工业有限公司 | SMD-LED fluorescent lamp |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078576A1 (en) * | 2011-11-30 | 2013-06-06 | 宁波赛尔富电子有限公司 | Illuminating lamp with uniform illuminance |
| CN104197214A (en) * | 2014-08-11 | 2014-12-10 | 太仓欧锐智能化工程有限公司 | LED fluorescent lamp |
| WO2016033954A1 (en) * | 2014-09-04 | 2016-03-10 | 袁志贤 | Novel led lamp |
| CN105757483A (en) * | 2014-09-23 | 2016-07-13 | 奥斯兰姆施尔凡尼亚公司 | Tubular LED lamp with flexible circuit board |
| CN108730794A (en) * | 2017-04-17 | 2018-11-02 | 通用电气公司 | LED light |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101818865B (en) | 2017-05-03 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 |