CN202215973U - LED (light-emitting diode) lamp - Google Patents
LED (light-emitting diode) lamp Download PDFInfo
- Publication number
- CN202215973U CN202215973U CN2011202562931U CN201120256293U CN202215973U CN 202215973 U CN202215973 U CN 202215973U CN 2011202562931 U CN2011202562931 U CN 2011202562931U CN 201120256293 U CN201120256293 U CN 201120256293U CN 202215973 U CN202215973 U CN 202215973U
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- led
- heat radiation
- lamp
- back cover
- lampshade
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Abstract
The utility model discloses an LED (light-emitting diode) lamp which comprises a shell and a light emitting device. A light source cavity and a rear shell cavity which are separated by the light emitting device are communicated through a radiating air ventilation passage inside the lamp, so that energy at the position of a light source can be uniformly dispersed to the integral lamp, and the integral radiating effect of the lamp is improved. A lamp shade at the front end of the lamp and a rear shell of the lamp are respectively provided with a series of radiating holes, so that energy inside the lamp can be effectively transferred to the outside by an air ventilation mode and the original radiating effect of the lamp is improved, and thus, the aims of reducing the failure rate of the LED lamp and prolonging the service life of the LED lamp are fulfilled.
Description
Technical field
The utility model relates to a kind of LED light fixture.
Background technology
Led light source is a kind of new and effective light source; LED has that volume is little, power consumption is low, long service life, brightness are high, environmental protection and advantage such as sturdy and durable; Compare superiority with conventional light source, therefore receive numerous professional persons' favor and occurred some in a large number and adopt the light fixture of led light source with theory and reality.
At present, the led light source majority is applied in some small-power light fixtures, can be applied to a plurality of lighting fields in order to make the LED light fixture, needs to improve the brightness of LED light fixture, and this majority needs to adopt high-power LED light source.Though LED is a cold light source, the high-power LED light source caloric value is still bigger, and LED is because single light-emitting area is narrow; Usually extensive in the circuit board integrated, cause a large amount of thermal accumlations thus, puncture circuit board sometimes; Along with the rising of temperature, the crash rate of LED can increase greatly, and light decay can aggravate; Thereby the life-span can shorten and causes reliability low, and maintenance cost raises, and is unfavorable for producing high-power LED lamp.
Therefore when designing high-power LED light fixture, the structure of light fixture and packaging technology necessarily require to consider heat radiation and light extraction efficiency.Present existing high-power LED lamp adopts aluminium heat exchanging material usually, relies near the shell of the Lights section to dispel the heat.In addition; Some radiators are also arranged through radiator is installed behind the LED lamp to reach the purpose of heat radiation; This method can be passed through the heat of circuit board heat sink in the back cover cavity, but still is to dispel the heat through shell, and the heat that the light source place produces can not be delivered to outside the light fixture well.
Summary of the invention
In order to address the above problem, the purpose of the utility model is to provide the LED with circulation of air radiating effect light fixture.
The utility model solves the technical scheme that its problem adopted:
A kind of LED light fixture; Comprise housing and light-emitting device; Housing comprises lampshade and back casing, and light-emitting device comprises LED luminescence unit and wiring board, and the inner space of housing is divided into light source cavity and back cover cavity through light-emitting device; Have heat radiation on the lampshade to discharge orifice, the light source cavity is communicated with space outerpace discharge orifice through heat radiation; The back cover louvre is arranged on the back casing, and the back cover cavity is communicated with through back cover louvre and space outerpace; Light source cavity and back cover cavity interconnect through the heat radiation air communication channel between two cavitys.
Further, lampshade comprises lampshade frame and diffuser, and diffuser is installed on the lampshade frame, on lampshade frame and/or diffuser, has described heat radiation to discharge orifice.Heat radiation can let light source cavity and space outerpace be communicated with to discharge orifice, and light-emitting device can be dispelled the heat better.
Further, described heat radiation is arranged on the lampshade frame edge near the diffuser edge discharge orifice.Heat radiation is opened the difficulty that on lampshade frame edge, can reduce production technology to discharge orifice can let source light from dispel the heat to discharge orifice, penetrate simultaneously, has certain decorative effect.
Further, heat radiation is pointed to the light-emitting device direction to the channel outlet of discharge orifice.Such design can let extraneous air contact light source better, also can make light better from dispelling the heat to penetrating the discharge orifice, strengthens decorative effect.
Further, there is an annular groove inboard near the lampshade frame of diffuser.Annular groove can let the entering heat radiation that the air in the discharge orifice is circulated better, to strengthen radiating effect.
Further, the LED luminescence unit comprises LED lamp and radiator, and the LED lamp is installed in the circuit board, and radiator is arranged at the rear of wiring board, and wiring board is provided with the heat radiation air communication channel that is communicated with light source cavity and back cover cavity.Air communication channel on the wiring board lets the light source cavity be connected mutually with the back cover cavity, and the air in the light source cavity can enter into the back cover cavity through the heat radiation air communication channel evenly distributes heat.
Further, described LED luminescence unit is a plurality of independent luminescence units, and the radiator between the independent separately luminescence unit is spaced from each other, and the heat radiation air communication channel is arranged between the independent luminescence unit.Spaced-apart radiator can fully contact with air, improves radiating effect.The heat radiation air communication channel that is arranged between independent illuminating source can be strengthened the circulation of air effect, improves the speed that the heat between light source cavity and bonnet cavity transmits.
Further, the through hole of described heat radiation air communication channel for offering in the circuit board.Adopting the through hole mode to form the heat radiation air communication channel can let the structure on the wiring board more reasonable.
Further, wiring board is interposed in the draw-in groove between lampshade and the back casing.This design can be installed among the light fixture wiring board stable and convenient.
Further, back casing comprises bonnet and lateral body, and bonnet is provided with described back cover louvre.The bonnet louvre that is provided with on the bonnet can let cross-ventilated effect more obvious, makes heat can be dispersed into space outerpace apace.
The beneficial effect of the utility model is: because this LED light fixture lets light source cavity and back cover cavity interconnect through the heat radiation air communication channel; Heat in the light source cavity can be delivered in the back cover cavity at light-emitting device rear through this air communication channel of dispelling the heat; Let the heat of whole lamp interior evenly distribute, the shell that can make full use of light fixture dispels the heat.The light source cavity is communicated with discharge orifice and space outerpace through heat radiation; The back cover cavity is communicated with through back cover louvre and space outerpace, can let outside air get into light fixture, in light fixture, forms the cross-ventilation radiating effect; Improve the original radiating efficiency of LED light fixture widely; Thereby reach the crash rate that reduces the LED light fixture, prolong the life-span and the low maintenance cost of LED light fixture, this light fixture can extensively use as lamp decorations such as Down lamp, lamp affixed to the ceilings.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the front view of the utility model light fixture;
Fig. 2 is the side view of the utility model light fixture;
Fig. 3 is the sectional structure chart of the utility model light fixture;
Fig. 4 is the vertical view of the utility model light fixture.
The specific embodiment
With reference to Fig. 1-Fig. 4; The LED light fixture of the utility model comprises housing 1 and light-emitting device 2, and housing 1 comprises lampshade 3 and back casing 4; Light-emitting device 2 comprises LED luminescence unit 9 and wiring board 10; The inner space of housing is divided into light source cavity 5 and back cover cavity 6 through light-emitting device 2, has heat radiation on the lampshade 3 to discharge orifice 7, and light source cavity 5 is communicated with space outerpace discharge orifice 7 through heat radiation; Back cover louvre 8 is arranged on the back casing 4, and back cover cavity 6 is communicated with through back cover louvre 8 and space outerpace; Light source cavity 5 and back cover cavity 6 interconnect through the heat radiation air communication channel between two cavitys.
Wherein, described lamp casing is preferably the heat sinking function good metal, like aluminium etc.
Further, lampshade 3 comprises lampshade frame 12 and diffuser 13, and diffuser 13 is installed on the lampshade frame 12, on lampshade frame 12 and/or diffuser 13, has described heat radiation to discharge orifice 7.
Wherein, diffuser 13 can adopt the translucent colloidal materials of milky to constitute, and heat radiation can adopt the annular spread mode to open around diffuser 13 to discharge orifice 7.
Further, described heat radiation is arranged on lampshade frame 12 edges near diffuser 13 edges discharge orifice 7.
Further, heat radiation is pointed to light-emitting device 2 directions to the channel outlet of discharge orifice 7.
Wherein, heat radiation is adopted certain angle of inclination to point to light-emitting device to discharge orifice 7 can not only to let outside air fully contact light source, can also make light better through this hole to reach certain decorative effect.
Further, there is an annular groove 14 inboard near the lampshade frame 12 of diffuser 13.
Further; LED luminescence unit 9 comprises LED lamp 15 and radiator 16; The LED radiator can be graphite plastic mixture radiator; LED lamp 15 is installed on the wiring board 10, and radiator 16 is arranged at the rear of wiring board 10, and wiring board 10 is provided with the heat radiation air communication channel that is communicated with light source cavity 5 and back cover cavity 6.
Further, described LED luminescence unit 9 is a plurality of independent luminescence units, and the radiator between the independent separately luminescence unit is spaced from each other, and the heat radiation air communication channel is arranged between the independent luminescence unit.
Further, the through hole 11 of described heat radiation air communication channel on wiring board 10, offering.
Further, wiring board 10 is interposed in the draw-in groove 19 between lampshade 3 and the back casing 4.
Further, back casing 4 comprises bonnet 17 and lateral body 18, and bonnet 17 is provided with described back cover louvre 8.
The above, the just preferred embodiment of the utility model, the utility model is not limited to above-mentioned embodiment, as long as it reaches the technique effect of the utility model with identical means, all should belong to the protection domain of the utility model.
Claims (10)
1. LED light fixture; Comprise housing (1) and light-emitting device (2); Housing (1) comprises lampshade (3) and back casing (4), and light-emitting device (2) comprises LED luminescence unit (9) and wiring board (10), it is characterized in that: the inner space of housing is divided into light source cavity (5) and back cover cavity (6) through light-emitting device (2); Have heat radiation on the lampshade (3) to discharge orifice (7), light source cavity (5) is communicated with space outerpace discharge orifice (7) through heat radiation; Back cover louvre (8) is arranged on the back casing (4), and back cover cavity (6) is communicated with through back cover louvre (8) and space outerpace; Light source cavity (5) and back cover cavity (6) interconnect through the heat radiation air communication channel between two cavitys.
2. a kind of LED light fixture according to claim 1; It is characterized in that: lampshade (3) comprises lampshade frame (12) and diffuser (13); Diffuser (13) is installed on the lampshade frame (12), on lampshade frame (12) and/or diffuser (13), has described heat radiation to discharge orifice (7).
3. a kind of LED light fixture according to claim 2 is characterized in that: described heat radiation is arranged on lampshade frame (12) edge near diffuser (13) edge discharge orifice (7).
4. according to claim 2 or 3 described a kind of LED light fixtures, it is characterized in that: heat radiation is pointed to light-emitting device (2) direction to the channel outlet of discharge orifice (7).
5. according to claim 2 or 3 described a kind of LED light fixtures, it is characterized in that: there is an annular groove (14) inboard near the lampshade frame (12) of diffuser (13).
6. a kind of LED light fixture according to claim 1; It is characterized in that: LED luminescence unit (9) comprises LED lamp (15) and radiator (16); LED lamp (15) is installed on the wiring board (10); Radiator (16) is arranged at the rear of wiring board (10), and wiring board (10) is provided with the heat radiation air communication channel that is communicated with light source cavity (5) and back cover cavity (6).
7. a kind of LED light fixture according to claim 6; It is characterized in that: described LED luminescence unit (9) is a plurality of independent luminescence units; Radiator between the independent separately luminescence unit is spaced from each other, and the heat radiation air communication channel is arranged between the independent luminescence unit.
8. according to claim 6 or 7 described a kind of LED light fixtures, it is characterized in that: the through hole (11) of described heat radiation air communication channel on wiring board (10), offering.
9. a kind of LED light fixture according to claim 1 is characterized in that: wiring board (10) is interposed in the draw-in groove (19) between lampshade (3) and the back casing (4).
10. a kind of LED light fixture according to claim 1 is characterized in that: back casing (4) comprises bonnet (17) and lateral body (18), and bonnet (17) is provided with described back cover louvre (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202562931U CN202215973U (en) | 2011-07-20 | 2011-07-20 | LED (light-emitting diode) lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202562931U CN202215973U (en) | 2011-07-20 | 2011-07-20 | LED (light-emitting diode) lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215973U true CN202215973U (en) | 2012-05-09 |
Family
ID=46015227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202562931U Expired - Fee Related CN202215973U (en) | 2011-07-20 | 2011-07-20 | LED (light-emitting diode) lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202215973U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818153A (en) * | 2012-07-31 | 2012-12-12 | 大连好利维尔科技发展有限公司 | LED (light emitting diode) illuminating lamp |
| CN105066075A (en) * | 2015-07-16 | 2015-11-18 | 东莞市闻誉实业有限公司 | Cooling device |
| CN107620893A (en) * | 2017-08-31 | 2018-01-23 | 江苏米优光电科技有限公司 | A kind of ventilative heat radiating type outdoor full color LED SMD lamp group and its production technology |
| CN108087727A (en) * | 2017-12-11 | 2018-05-29 | 广州木杉光电科技有限公司 | A kind of LED lamp of good heat dissipation effect |
-
2011
- 2011-07-20 CN CN2011202562931U patent/CN202215973U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818153A (en) * | 2012-07-31 | 2012-12-12 | 大连好利维尔科技发展有限公司 | LED (light emitting diode) illuminating lamp |
| CN105066075A (en) * | 2015-07-16 | 2015-11-18 | 东莞市闻誉实业有限公司 | Cooling device |
| CN105066075B (en) * | 2015-07-16 | 2018-09-18 | 东莞市闻誉实业有限公司 | Radiator |
| CN107620893A (en) * | 2017-08-31 | 2018-01-23 | 江苏米优光电科技有限公司 | A kind of ventilative heat radiating type outdoor full color LED SMD lamp group and its production technology |
| CN108087727A (en) * | 2017-12-11 | 2018-05-29 | 广州木杉光电科技有限公司 | A kind of LED lamp of good heat dissipation effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20150720 |
|
| EXPY | Termination of patent right or utility model |