CN101818865B - Led lamp tube - Google Patents
Led lamp tube Download PDFInfo
- Publication number
- CN101818865B CN101818865B CN201010128543.3A CN201010128543A CN101818865B CN 101818865 B CN101818865 B CN 101818865B CN 201010128543 A CN201010128543 A CN 201010128543A CN 101818865 B CN101818865 B CN 101818865B
- Authority
- CN
- China
- Prior art keywords
- circuit board
- installation portion
- lamp tube
- led lamp
- end cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 33
- 238000005452 bending Methods 0.000 claims 1
- 230000000007 visual effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 206010014357 Electric shock Diseases 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
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. Three sets of LED chips are arranged in the length direction of the lamp tube, and the LED chips of each set are arranged in the length direction of the lamp tube in a staggered mode. 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 diodes；Light Emitting Diode) technical field of lamps, more specifically
Say, be to be related to a kind of LED lamp tube with larger irradiating angle.
Background technology
In recent years, LED lamp is because receive much concern the features such as energy-conservation, more environmentally friendly, efficiency high, small volume, longer life-span,
LED lamp is replacing traditional incandescent lamp and fluorescent tube and as main flow illuminations.At the same time, with clean energy resource
The development of efficiency techniques and the increasingly enhancing of people's environmental protection concept, increasing family and mechanism all will be using LED lamps
It is illuminated.Under this trend, it is ensured that being perfectly safe for LED lamp, the potential safety problem such as electric shock is prevented, just seemed
It is even more important.
Refer to Fig. 1, a kind of LED lamp tube 100 of the prior art include heat-dissipating casing 110, lampshade (not shown),
End cap 120 positioned at the heat-dissipating casing 110 and lampshade two ends, two circuits being electrically connected by electrical connector 145
Plate 150, the LED lamp bead 170 on described two circuit boards 150, the contact pin 180 on the end cap 120 and difference
The driving (not shown) being connected with two circuit boards 150.The LED of this surface mounted (surface mount) structure
Pipe generally only has 120 ° or so of visual angle, and in high ceiling and cold store, it usually needs LED lamp tube has 180 °
Visual angle (Viewing Angle).
Fig. 2 is refer to, another kind of LED lamp tube 1000 of the prior art has a larger visual angle, and it includes one
The H-shaped circuit board 1200 in plastic casing 1100 and a cross section.On the horizontal part 1300 of the circuit board 1200,
It is provided with three groups of LED lamp beads 1301,1401,1501 with different normal directions.Wherein, LED lamp bead 1401 is located at diagram plane
1400, and LED lamp bead 1501 is located at diagram plane 1500.And if in order to reach 180 ° of visual angle, increasing plane 1400,1500
During angle with respect to the horizontal plane, needs are drilled with axis on horizontal part 1300 and with respect to the horizontal plane have 67.5 ° to 87 ° angles
Inclined hole, and this is impracticable in technique.Further, since the baffle portion 1600,1601 of the top both sides of circuit board 1200
Limit, the visual angle of fluorescent tube also is difficult to expand.
In addition, when consumer installs above-mentioned LED lamp tube, also there is bigger potential safety hazard.For example, when in biography
On system fluorescent lamp socket when mounted LED lamp pipe, if the contact pin shown in figure is inserted lamp socket high-tension by consumer
(live wire is commonly called as during end), although do not constitute loop with the neutral conductor (being commonly called as ground wire) driving, pass through without electric current, but its
In there is certain potential, if when consumer now touches the contact pin of the other end, suffer from electric shock, from
And there is security incident.
On the market all there is above-mentioned potential safety hazard in all of LED lamp tube, and not take corresponding safety measure in addition
Prevent.Whether consumer is electrically shocked, and depending on contact pin the high-tension one end of lamp socket whether is first inserted into.Therefore, consumer is present
50% is electrically shocked danger.
The content of the invention
The technical problem to be solved is to provide a kind of LED lamp tube, and it has broader visual angle.
To solve above-mentioned technical problem, the technical scheme is that：A kind of LED lamp tube, including heat-dissipating casing, lamp are provided
Cover, the end cap positioned at the heat-dissipating casing and lampshade two ends and the circuit board that the heat-dissipating casing is fixedly connected, positioned at the electricity
LED chip on the plate of road, the heat-dissipating casing has the curved curved surface in a cross section, and by the curved surface and the circuit
Plate is fixedly connected, and the LED chip is arranged along fluorescent tube length direction, and including three groups, the LED chip in each group is long along fluorescent tube
Degree direction is crisscross arranged.
More specifically, the circuit board is flexible PCB.
More specifically, the curved surface include with the first installation portion of plane-parallel, positioned at the first installation portion both sides
And symmetrically arranged second installation portion and the 3rd installation portion, first installation portion and second installation portion and described
Angle between first installation portion and the 3rd installation portion is not less than 30 °.
More specifically, three groups of LED chips correspond to respectively first installation portion, the second installation portion and the 3rd installation
Portion is arranged.
More specifically, the half angle of view of three groups of LED chips is not less than 60 °.
More specifically, the fluorescent tube also include be located at described two end caps on two groups of contact pins and respectively with the circuit
The drive part of plate electrical connection, on the circuit between the drive part and two groups of contact pins Protection switch is respectively equipped with.
More specifically, the Protection switch realizes break-make by way of mechanical key control or sensing.
More specifically, the drive part includes the cover of driver being fixedly connected by screw with the heat-dissipating casing, institute
State and form heat dissipation channel between cover of driver and the heat-dissipating casing.
More specifically, the cover of driver is in semi-cylindrical and with the receiving consistent with cavity direction in the heat-dissipating casing
Space.
More specifically, the end cap includes end cap shell, the end cap circuit board in the end cap shell, the contact pin and anti-
Shield switch is fixedly connected with the end cap circuit board.
So, when the circuit board is combined with the curved surface, you can make the LED core for being located at diverse location on circuit board
Piece has different normal directions, so as to increase the visual angle of whole LED lamp tube.And due to being provided with Protection switch, no matter user
Whether contact pin is first inserted the high-tension one end of lamp socket, only after two groups of contact pins are all installed in lamp socket, restart protection
Switch, forms between Cai Nengshi cities power supply and drive part and electrically connects, therefore completely eliminates potential during user installation
It is dangerous.
Description of the drawings
Fig. 1 is the schematic perspective view that a kind of LED lamp tube removes after lampshade in prior art；
Fig. 2 is the cross-sectional schematic of another kind of LED lamp tube in prior art；
Fig. 3 is that a preferred embodiment of the present invention removes the sectional perspective schematic diagram after lampshade；
Fig. 4 is the cross-sectional schematic of embodiment illustrated in fig. 3；
Fig. 5 is the wide viewing angle schematic diagram of embodiment illustrated in fig. 3；
Fig. 6 is the circuit theory schematic diagram of embodiment illustrated in fig. 3；
Fig. 7 is the schematic perspective view of cover of driver in embodiment illustrated in fig. 3；
Fig. 8 is the schematic perspective view of the end cap in embodiment illustrated in fig. 3.
Specific embodiment
In order that the technical problem to be solved, technical scheme and beneficial effect become more apparent, below tie
Drawings and Examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Fig. 3 and Fig. 4 is refer to, is a preferred embodiment of the present invention, the LED lamp tube includes heat-dissipating casing 201, lampshade
202nd, the circuit that the end cap 260 positioned at the heat-dissipating casing 201 and the two ends of lampshade 202 is fixedly connected with the heat-dissipating casing 201
Plate 205, the LED chip 212 on the circuit board 205.The heat-dissipating casing 201 has the curved curved surface in a cross section
211, and be fixedly connected with the circuit board 205 by the curved surface 211.So, when by the circuit board 205 and the curved surface
211 when combining, you can makes the LED chip 212 for being located at diverse location on circuit board 205 have different normal directions, so as to increase
The visual angle of big whole LED lamp tube.
Said structure is further described in detail respectively below.
Fig. 4 and Fig. 5 is refer to, in the present embodiment, the circuit board 205 is flexible PCB.The curved surface 211 include with
First installation portion 211A of plane-parallel, positioned at the first installation portion 211A both sides and symmetrically arranged second installation portion
211B and the 3rd installation portion 211C.The first installation portion 211A and the second installation portion 211B and first peace
Angle between dress portion 211A and the 3rd installation portion 211C is not less than 30 °.The LED chip 212 is along fluorescent tube length direction
Arrange and including three groups, three groups of LED chips 212 respectively correspond to the first installation portion 211A, the second installation portion 211B with
And the 3rd installation portion 211C arrange.And the half angle of view of three groups of LED chips 212 is not less than 60 °.So, the LED lamp tube of the present embodiment
Visual angle can more than 180 °.
Incorporated by reference to reference Fig. 4 and Fig. 7, the cross section substantially semicircular in shape of the shell 201, and can be led using aluminium, copper etc.
The good metal or alloy material of hot property is made.The side of its correspondence LED lamp tube exiting surface is formed to install permanent circuit
The curved surface 211 of plate 205.Extend the location division with mounting groove in the both sides of the curved surface 211, to realize and Transparent lamp shade
202 connection.In order to expand area of dissipation, the shell 201 forms multiple strips in the side contrary with LED lamp tube exiting surface
Projection.In addition, being provided with the through hole of shell 201 described in insertion on the length direction of the shell 201, it is easy to air circulation and dissipates
Heat.
Incorporated by reference to reference to Fig. 6, the present embodiment also includes two groups of contact pins 250 being located on described two end caps 260 and divides
The drive part 400 not electrically connected with the circuit board 205, between the drive part 400 and two groups of contact pins 250
Protection switch 220 is respectively equipped with circuit.So, no matter whether user contact pin 250 is first inserted the high-tension one end of lamp socket, only
Have after two groups of contact pins 250 are all installed in lamp socket, restart Protection switch 220, Cai Nengshi cities power supply and drive part 400
Between form electrical connection, therefore completely eliminate the potential danger during user installation.
In the present embodiment, the Protection switch 220 can realize break-make by way of mechanical key control or remote control.When adopting
When being controlled with mechanical key, mechanical key of the prior art can be adopted.When using sensing mode, infrared sensing can be adopted
Device, electro-magnetic sensor, photo switches, photo sensors etc..
Incorporated by reference to reference to Fig. 7, the drive part 400 includes being fixedly connected by screw with the heat-dissipating casing 201
Cover of driver 401, driving in the cover of driver 401 etc..The two ends of the cover of driver 401 each extend over out a method
Blue structure 411, to be fixedly connected with the shell 201.In the present embodiment, the cover of driver 401 is in semi-cylindrical and has
There is the receiving space 412 consistent with cavity direction in the heat-dissipating casing 201.In addition, the side of cover of driver flange arrangement 411
Heat dissipation channel 404 is formed between the curved surface 211.
Incorporated by reference to reference to Fig. 8, the end cap 260 includes end cap shell 261, the end cap circuit in the end cap shell 261
Plate (not shown), the jack that end cap shell 261 is provided with Protection switch installing hole and plugs for the contact pin 250.This enforcement
In example, the contact pin 250 and Protection switch 220 are fixedly connected with the end cap circuit board.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (5)
1. a kind of LED lamp tube, including heat-dissipating casing, lampshade, the end cap positioned at the heat-dissipating casing and lampshade two ends and it is described dissipate
Circuit board, the LED chip on the circuit board that hot shell is fixedly connected, the circuit board is flexible PCB, and it is special
Levy and be：The LED lamp tube is the elongated LED lamp tube of room lighting, for replacing traditional crosspointer fluorescent tube；The radiating
Shell only in radially bending, with the curved curved surface in a cross section, and is fixedly connected by the curved surface with the circuit board,
The curved surface include with the first installation portion of plane-parallel, positioned at the first installation portion both sides and it is symmetrically arranged second peace
Dress portion and the 3rd installation portion, first installation portion and second installation portion and first installation portion and described
Angle between three installation portions is not less than 30 °, and the LED chip is arranged along fluorescent tube length direction, and including three groups, described three groups
LED chip corresponds to respectively first installation portion, the second installation portion and the 3rd installation portion and arranges, and the LED chip in each group exists
It is crisscross arranged along fluorescent tube length direction；The fluorescent tube also include be located at described two end caps on two groups of contact pins and respectively with institute
The drive part of circuit board electrical connection is stated, on the circuit between the drive part and two groups of contact pins protection is respectively equipped with
Switch；The drive part includes the cover of driver being fixedly connected by screw with the heat-dissipating casing, the cover of driver
Two ends each extend over out a flange arrangement, to be fixedly connected with the heat-dissipating casing, the cover of driver flange arrangement side
Heat dissipation channel is formed between the curved surface.
2. LED lamp tube as claimed in claim 1, it is characterised in that：The half angle of view of three groups of LED chips is not less than 60 °.
3. LED lamp tube as claimed in claim 1, it is characterised in that：The Protection switch is controlled by mechanical key or sensed
Mode realize break-make.
4. LED lamp tube as claimed in claim 1, it is characterised in that：The cover of driver in semi-cylindrical and with it is described
The consistent receiving space of cavity direction in heat-dissipating casing.
5. LED lamp tube as claimed in claim 1, it is characterised in that：The end cap is including end cap shell, in the end cap shell
End cap circuit board, the contact pin and Protection switch are fixedly connected with the end cap circuit board.
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 CN101818865A (en) | 2010-09-01 |
| CN101818865B true 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) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418884A (en) * | 2011-11-30 | 2012-04-18 | 林万炯 | Illumination 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 |
| CN204042743U (en) * | 2014-09-04 | 2014-12-24 | 田艺儿 | A kind of Novel LED light |
| US9551480B2 (en) * | 2014-09-23 | 2017-01-24 | Osram Sylvania Inc. | Tubular LED lamp with flexible circuit board |
| CN108730794A (en) * | 2017-04-17 | 2018-11-02 | 通用电气公司 | LED light |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2136552B (en) * | 1983-03-18 | 1986-02-12 | Linolite Ltd | Light fittings |
| CN2864336Y (en) * | 2005-10-21 | 2007-01-31 | 官有占 | An 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN101818865A (en) | 2010-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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 |