CN202791470U - LED (light emitting diode) down lamp with high utilization rate of light effect - Google Patents
LED (light emitting diode) down lamp with high utilization rate of light effect Download PDFInfo
- Publication number
- CN202791470U CN202791470U CN201220413919XU CN201220413919U CN202791470U CN 202791470 U CN202791470 U CN 202791470U CN 201220413919X U CN201220413919X U CN 201220413919XU CN 201220413919 U CN201220413919 U CN 201220413919U CN 202791470 U CN202791470 U CN 202791470U
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- light
- led
- utilization rate
- light source
- down lamp
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Abstract
The utility model discloses an LED (light emitting diode) down lamp with a high utilization rate of light effect. The LED down lamp comprises a light transmitting cover, a circuit board which is arranged at the lower end of the light transmitting cover and provided with LED light sources, a heat radiator which clings to the lower end surface of the circuit board, and a driving device connected with the circuit board. The light transmitting cover is provided with a plurality of annular reflection grooves which take the center of the light transmitting cover as a circle center and are arranged from the circle center to edge at equal intervals; the profile of each annular reflection groove takes the shape of two symmetrical arcs; each annular reflection groove is provided with a plurality of light source through holes; and the light source through holes are adapted to and correspond to the LED light sources one by one. The traditional arrangement way of the light sources is changed, the LED light sources are reasonably and uniformly distributed on the whole light transmitting cover and extend to the outer surface of the light transmitting cover through the light source through holes in the light transmitting cover, so that the light rays sent from the LED light sources are directly radiated outwards, the utilization rate of light effect is high, besides most of light rays can be reflected out by the annular reflection grooves and thus the utilization rate of the light effect is further enhanced.
Description
Technical field
The utility model relates to the LED lighting technical field, particularly a kind of LED Down lamp.
Background technology
The light source arrangement form of existing LED Down lamp generally adopts conventional incandescent Down lamp form, and namely the employing center is the reflecting surface form around led light source, light source are set.But, such light source arrangement mode is only suitable for that exiting surface is large, the uniform conventional light source of light intensity distributions, and be not suitable for led light source, led light source has that exiting surface is little, light intensity distributions is concentrated, directive property is strong, need the characteristics such as good heat radiating, and adopt above-mentioned conventional light source arrangement, and can cause LED Down lamp luminous intensity distribution undesirable, the illumination light intensity distribution is inhomogeneous, illumination zone is little, and the light efficiency utilization rate is lower.
Therefore, how to realize that the LED Down lamp that a kind of luminous intensity distribution is reasonable, the light efficiency utilization rate is high is the technical problem that needs to be resolved hurrily in the industry.
Summary of the invention
Main purpose of the present utility model provides the high LED Down lamp of a kind of light efficiency utilization rate, is intended to change the light source arrangement mode of LED Down lamp, make LED Down lamp luminous intensity distribution rationally, the light efficiency utilization rate is high.
The utility model proposes the high LED Down lamp of a kind of light efficiency utilization rate, comprise a diffuser, be located at the diffuser lower end and with the circuit board of led light source, be close to the radiator of circuit board lower surface, the drive unit that is connected with circuit board, diffuser is provided with some annular reflection grooves that as the center of circle, equi-spaced apart arrange toward the edge from the center of circle take the center of diffuser, the annular reflection grooved profile is the arc of two symmetries, the annular reflection groove is provided with some light source through holes, and light source through holes is adaptive with led light source and position homogeneous one is corresponding.
Preferably, the interval between the adjacent annular reflection groove can be set to 0.2 centimetre to 1 centimetre.
Preferably, light source through holes is evenly distributed on the annular reflection groove.
Preferably, the diffuser outer surface is provided with reflectorized material.
Preferably, drive unit is located in the cavity of radiator center.
The LED Down lamp that a kind of light efficiency utilization rate of the utility model is high, comprise a diffuser, be located at the diffuser lower end and with the circuit board of led light source, be close to the radiator of circuit board lower surface, the drive unit that is connected with circuit board, diffuser is provided with some annular reflection grooves that as the center of circle, equi-spaced apart arrange toward the edge from the center of circle take the center of diffuser, the annular reflection grooved profile is the arc of two symmetries, the annular reflection groove is provided with some light source through holes, and light source through holes is adaptive with led light source and position homogeneous one is corresponding.Like this, change traditional light source arrangement mode, rationally arrange equably led light source, led light source is evenly distributed on the whole diffuser, led light source reaches on the diffuser outer surface by the light source through holes on the diffuser, the directly outwards direct projection of light that led light source is sent, and the light efficiency utilization rate is high, and the light overwhelming majority of sending all can reflect away by the annular reflection groove, further improves the light efficiency utilization rate.
Description of drawings
Fig. 1 is the stereochemical structure decomposing schematic representation of an embodiment of the high LED Down lamp of a kind of light efficiency utilization rate of the utility model;
Fig. 2 is the plan structure enlarged drawing of diffuser among the embodiment of the high LED Down lamp of a kind of light efficiency utilization rate of the utility model;
Fig. 3 is the cross-section structure enlarged drawing of diffuser among the embodiment of the high LED Down lamp of a kind of light efficiency utilization rate of the utility model.
The realization of the utility model purpose, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
The specific embodiment
Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Referring to figs. 1 through Fig. 3, one embodiment of the high LED Down lamp of a kind of light efficiency utilization rate of the present utility model is proposed, comprise a diffuser 100, be located at diffuser 100 lower ends and with the circuit board 200 of led light source 201, be close to the radiator 300 of circuit board 200 lower surfaces, the drive unit that is connected with circuit board 200, diffuser 100 is provided with some centers take diffuser 100 as the center of circle, the annular reflection groove 101 that equi-spaced apart ground arranges toward the edge from the center of circle, annular reflection groove 101 sections are the arc of two symmetries, annular reflection groove 101 is provided with some light source through holes 102, and light source through holes 102 is adaptive with led light source and position homogeneous one is corresponding.
Interval between the adjacent annular reflection groove 101 can be set to 0.2 centimetre to 1 centimetre.
Light source through holes 102 is evenly distributed on the annular reflection groove 101, and in like manner, led light source is evenly distributed on the circuit board 200.
Diffuser 100 outer surfaces are provided with reflectorized material.
Drive unit is located in the cavity of radiator 300 centers.
Like this, change traditional light source arrangement mode, rationally arrange equably led light source, led light source is evenly distributed on the whole diffuser 100, led light source reaches on diffuser 100 outer surfaces by the light source through holes 102 on the diffuser 100, the directly outwards direct projection of light that led light source is sent, and the light efficiency utilization rate is high, and the light overwhelming majority of sending all can reflect away by annular reflection groove 101, further improves the light efficiency utilization rate.
The above only is preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. LED Down lamp that the light efficiency utilization rate is high, comprise a diffuser, be located at described diffuser lower end and with the circuit board of led light source, be close to the radiator of described circuit board lower surface, the drive unit that is connected with described circuit board, it is characterized in that, described diffuser is provided with some centers take diffuser as the center of circle, the annular reflection groove that equi-spaced apart ground arranges toward the edge from the described center of circle, described annular reflection grooved profile is the arc of two symmetries, described annular reflection groove is provided with some light source through holes, and described light source through holes is adaptive with described led light source and position homogeneous one is corresponding.
2. the high LED Down lamp of a kind of light efficiency utilization rate according to claim 1 is characterized in that, the interval between the adjacent described annular reflection groove can be set to 0.2 centimetre to 1 centimetre.
3. the high LED Down lamp of a kind of light efficiency utilization rate according to claim 1 and 2 is characterized in that described light source through holes is evenly distributed on the described annular reflection groove.
4. the high LED Down lamp of a kind of light efficiency utilization rate according to claim 3 is characterized in that described diffuser outer surface is provided with reflectorized material.
5. the high LED Down lamp of a kind of light efficiency utilization rate according to claim 4 is characterized in that described drive unit is located in the cavity of described radiator center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220413919XU CN202791470U (en) | 2012-08-21 | 2012-08-21 | LED (light emitting diode) down lamp with high utilization rate of light effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220413919XU CN202791470U (en) | 2012-08-21 | 2012-08-21 | LED (light emitting diode) down lamp with high utilization rate of light effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202791470U true CN202791470U (en) | 2013-03-13 |
Family
ID=47818729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220413919XU Expired - Fee Related CN202791470U (en) | 2012-08-21 | 2012-08-21 | LED (light emitting diode) down lamp with high utilization rate of light effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202791470U (en) |
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2012
- 2012-08-21 CN CN201220413919XU patent/CN202791470U/en not_active Expired - Fee Related
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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: 20130313 Termination date: 20140821 |
|
| EXPY | Termination of patent right or utility model |