CN102620238B - Floodlight reflector and light-emitting diode (LED) lamp - Google Patents
Floodlight reflector and light-emitting diode (LED) lamp Download PDFInfo
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- CN102620238B CN102620238B CN201110028574.6A CN201110028574A CN102620238B CN 102620238 B CN102620238 B CN 102620238B CN 201110028574 A CN201110028574 A CN 201110028574A CN 102620238 B CN102620238 B CN 102620238B
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Abstract
The invention discloses a floodlight reflector and a light-emitting diode (LED) lamp. The floodlight reflector comprises an illuminant opening corresponding to an illuminant and a light-emitting opening corresponding to the position of light-emitting. The illuminant opening and the light-emitting opening are rectangular and are defined by two first reflecting surfaces and two second reflecting surfaces, wherein the first reflecting surfaces are opposite and symmetrical to each other and the second reflecting surfaces are opposite and symmetrical to each other, are extruded surfaces and are provided with a first stretching generatrix and a second stretching generatrix respectively, the first stretching generatrix and the second stretching generatrix are a plurality of lines on the same plane, the first stretching generatrix includes six end-to-end lines, the angle between the geometry center of the illuminant and two ends of each line is between 8 degrees and 12 degrees, the second stretching generatrix includes seven end-to-end lines, and the angle between the geometry center of the illuminant and two ends of each line is between 8 degrees and 12 degrees. Compared with the sizes of floodlight reflectors and LED lamps prior art, the sizes of the floodlight reflector and the LED lamp can be substantially reduced.
Description
Technical field
The present invention relates to LED (Light Emitting Diode, light emitting diode) technical field of lamps, more particularly, relate to a kind of floodlight reflector and LED lamp.
Background technology
Along with developing rapidly of high-power LED lamp, LED lamp becomes focus concerned in recent years with its low consumption, the characteristic such as durable, and the light efficiency of the light-configuration mode of LED lamp on light fixture has important impact.For LED street lamp, the luminous intensity distribution of LED street lamp in prior art, mostly adopts special LED lens luminous intensity distribution.For this mode, because LED lens can design smaller, thus more LED light source can be arranged in limited space, improve the illumination of light fixture on road surface.
But, adopt lens luminous intensity distribution, the decay of LED lamplight can be made to increase, thus reduce the efficiency of light fixture.
In the prior art, also have part LED street lamp to adopt reflector luminous intensity distribution, but unreasonable due to what design, the size of reflector is general all comparatively large, can meet the size of the single reflector of light distribution requirements close to 20mm × 40mm × 50mm.The reflector of this size can cause the volume of whole LED street lamp excessive, has both affected attractive in appearance, the increase manufacturing cost of light fixture.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of floodlight reflector, and it can realize the miniaturization of light fixture.
Another technical problem to be solved by this invention is to provide a kind of LED lamp, and it has above-mentioned floodlight reflector.
For floodlight reflector of the present invention, above-mentioned technical problem is solved like this: provide a kind of floodlight reflector, there is the light source mouth of corresponding light source setting and the light-emitting window of corresponding exit positions setting, described light source mouth and described light-emitting window are rectangle, and by be oppositely arranged and two of symmetry the first reflectings surface and two the second reflectings surface enclose and formed, described first reflecting surface and described second reflecting surface are Extrude Face, and there is the first stretching bus and the second stretching bus respectively, described first stretching bus and the second stretching bus are and are positioned at conplane multi-section-line, wherein said first stretching bus comprises six end to end line segments, angle between every bar line segment two ends and described light source mouth geometric center line is 8-12 ° and the length of described six line segments is increased successively by described light source mouth to described light-emitting window, described second stretching bus comprises seven end to end line segments, angle between every bar line segment two ends and described light source mouth geometric center line is 8-12 ° and is 0 ° near the line segment two ends of described light-emitting window and the angle of described light source mouth geometric center line, the length of described seven line segments is increased successively by described light source mouth to described light-emitting window, in described first stretching bus, the angle between the line segment and described light source mouth place plane of described light source mouth is 51.5 °, and the angle between the line segment and described light source mouth place plane of described light-emitting window is 79.5 °, in described second stretching bus, being 51.5 ° near the angle between the line segment of described light source mouth and described light source mouth place plane, be 60 ° and angle between the line segment adjacent with this line segment and described light source mouth place plane is 90 ° near the angle between the line segment and described light source mouth place plane of described light-emitting window.
More specifically, in described first stretching bus, the angle between described line segment two ends and described light source mouth geometric center line is 10 °.
More specifically, in described second stretching bus, it is 10 ° along described light source mouth to the angle between the first five described line segment two ends of described light-emitting window and described light source mouth geometric center line.
More specifically, described light source mouth and described light-emitting window are square.
More specifically, the length of side of described light source mouth is 8 millimeters, and the length of side of described light-emitting window is 21 millimeters.
More specifically, on described two the first reflectings surface and two the second reflectings surface, plating is provided with reflectance coating.
More specifically, described reflectance coating is aluminium film, and its reflectivity is higher than 75%.
For LED lamp of the present invention, above-mentioned technical problem is solved like this: provide a kind of LED lamp, comprise the multiple LED chip being positioned circuit board, also comprise the floodlight reflector that arrange corresponding to described multiple LED chip, described floodlight reflector is above-mentioned floodlight reflector.
Compared with prior art, the size of floodlight reflector of the present invention can significantly be reduced, and the floodlight reflector size made is not more than 21mm × 21mm × 18mm, and, adopt the light emitting anger of the LED lamp of aforementioned floodlight reflector can reach 20 ° × 40 °, uniformity of illuminance is high.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of floodlight reflector one of the present invention preferred embodiment;
Fig. 2 is schematic top plan view embodiment illustrated in fig. 1, and shows reference axis;
Fig. 3 is schematic side view embodiment illustrated in fig. 1, and shows reference axis;
Fig. 4 is schematic front view embodiment illustrated in fig. 1, and shows reference axis;
Fig. 5 be embodiment illustrated in fig. 1 in the structural representation of the first stretching bus, and show reference axis;
Fig. 6 be embodiment illustrated in fig. 1 in the structural representation of the second stretching bus, and show reference axis;
Fig. 7 is working state schematic representation embodiment illustrated in fig. 1;
Fig. 8 is the schematic front view of LED lamp of the present invention;
Fig. 9 is distribution curve flux figure embodiment illustrated in fig. 8.
Detailed description of the invention
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Please refer to Fig. 1 to Fig. 4, for a preferred embodiment of floodlight reflector of the present invention, this floodlight reflector 1 has the light source mouth 11 of corresponding light source setting and the light-emitting window 12 of corresponding exit positions setting, described light source mouth 11 and described light-emitting window 12 are rectangle, and by be oppositely arranged and two of symmetry the first reflectings surface 13 and two the second reflectings surface 14 enclose and formed.Described first reflecting surface 13 and described second reflecting surface 14 are Extrude Face, and have the first stretching bus and the second stretching bus respectively.Described first stretching bus and the second stretching bus are and are positioned at conplane multi-section-line.Wherein said first stretching bus comprises six end to end line segments (i.e. line segment 131 shown in Fig. 5,132,133,134,135,136), and the angle between every bar line segment two ends and described light source mouth geometric center O line is 8-12 °.Described second stretching bus comprises seven end to end line segments (i.e. line segment 141 shown in Fig. 6,142,143,144,145,146,147), and the angle between every bar line segment two ends and described light source mouth geometric center O line is also 8-12 °.Below the present embodiment is described further.
For convenience of description, in the present embodiment, with by light source mouth geometric center O and respectively perpendicular to two straight lines on light source mouth 11 both sides for X-axis and Y-axis, with by light source mouth geometric center O and respectively perpendicular to the straight line of light source mouth 11 place plane for Z axis, set up coordinate system.Then, the length of the corresponding floodlight reflector of X-axis and Y-axis and width, the height of Z axis then corresponding floodlight reflector.
Incorporated by reference to reference Fig. 5, in the present embodiment, for described first stretching bus, the angle between line segment 131,132,133,134,135,136 two ends and described light source mouth geometric center O line is 10 °.Angle between the line segment 131 and described light source mouth 11 place plane of described light source mouth 11 is 51.5 °, thus line segment 131 and the angle of Z axis in figure are 38 °, line segment 132 is 35.5 ° with the angle of Z axis in figure, line segment 133 is 28 ° with the angle of Z axis in figure, line segment 134 is 25.5 ° with the angle of Z axis in figure, line segment 135 is 18 ° with the angle of Z axis in figure, line segment 136 is 10.5 ° with the angle of Z axis in figure.
Incorporated by reference to reference Fig. 6, in the present embodiment, for described second stretching bus, line segment 141, 142, 143, 144, 145, angle between 146 two ends and described light source mouth geometric center O line is also 10 °, angle between line segment 147 two ends and described light source mouth geometric center O line is also 0 °, angle between the line segment 141 and described light source mouth 11 place plane of described light source mouth 11 is 51.5 °, thus, line segment 141 is 38.5 ° with the angle of Z axis in figure, line segment 142 is 33.5 ° with the angle of Z axis in figure, line segment 143 is 26 ° with the angle of Z axis in figure, line segment 144 is 23.5 ° with the angle of Z axis in figure, line segment 145 is 11 ° with the angle of Z axis in figure, line segment 146 is 0 ° with the angle of Z axis in figure, and line segment 147 and the angle of Z axis in figure are 30 °, the length of line segment 147 can make the Extrude Face corresponding to line segment 147 concordant in the position of light-emitting window 12 with the Extrude Face corresponding to adjacent segments 136.
In the present embodiment, described light source mouth 11 and described light-emitting window 12 are square.The length of side of wherein said light source mouth 11 is 8 millimeters, and the length of side of described light-emitting window 12 is 21 millimeters.Namely above-mentioned condition and parameter determine the shape and size of the present embodiment floodlight reflector 1.The floodlight reflector made is of a size of 21mm × 21mm × 18mm.
In the present embodiment, on described two the first reflectings surface 13 and two the second reflectings surface 14, plating is provided with reflectance coating, can select reflectivity higher than 75% aluminium film as the reflectance coating of described floodlight reflector.
Incorporated by reference to reference to Fig. 7, be the present embodiment working state schematic representation, the light-emitting area of LED chip 2 is alignd with bottom floodlight reflector, and the center line of LED chip 2 overlaps with the center line of floodlight reflector, and the light-emitting area of LED chip 2 is towards the light-emitting window direction of floodlight reflector.
Like this, the light part that LED chip 2 sends directly is shot out, the injection after two the first reflectings surface 13 and two the second reflectings surface 14 reflect of other most light.Send and the light of directive reflector centerline side from LED chip 2, after reflector reflects, penetrated by reflector centerline opposite side, thus make the light through reflector reflects be interleaved mode injection.
Incorporated by reference to reference Fig. 8, be a preferred embodiment of LED lamp A of the present invention, this LED lamp A comprises the multiple LED chip 2 being positioned circuit board 3, also comprises the floodlight reflector 1 that arrange corresponding to described multiple LED chip 2.
The specific practice of the present embodiment is, circuit board 3 is provided with altogether 20 LEDs chips 2, and each floodlight reflector 1 corresponds to the LED chip of 1 3W, and as shown in the figure, both all arrange according to the mode of 4 × 5 position relationship of LED chip 2 and floodlight reflector 1.Light fixture space shared by 20 floodlight reflectors is less than 105mm × 84mm × 18mm.If adopt reflector luminous intensity distribution of the prior art, the bulk that the reflector so installing 20 LEDs chips takies will be at least 215mm × 175mm × 33.9mm.Therefore, the volume of the light fixture of the present embodiment is significantly reduced.
LED chip 2 is not when through reflection or refraction, and its luminescent ligand light characteristic meets lambert's body radiation law, and light emitting anger is about 120 degree.It is about 120 degree that the floodlight reflector of the present embodiment is applicable to light emitting anger, and diameter dimension is less than the LED chip of 8mm.Incorporated by reference to reference Fig. 9, the emergent light of LED chip after the reflection of the present embodiment floodlight reflector, its light emitting anger is about 20 × 40 degree, and realizes floodlighting in this region, has higher uniformity of illuminance.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a floodlight reflector, there is the light source mouth of corresponding light source setting and the light-emitting window of corresponding exit positions setting, it is characterized in that: described light source mouth and described light-emitting window are rectangle, and by be oppositely arranged and two of symmetry the first reflectings surface and two the second reflectings surface enclose and formed, described first reflecting surface and described second reflecting surface are Extrude Face, and there is the first stretching bus and the second stretching bus respectively, described first stretching bus and the second stretching bus are and are positioned at conplane multi-section-line, wherein said first stretching bus comprises six end to end line segments, angle between every bar line segment two ends and described light source mouth geometric center line is 8-12 ° and the length of described six line segments is increased successively by described light source mouth to described light-emitting window, described second stretching bus comprises seven end to end line segments, angle between every bar line segment two ends and described light source mouth geometric center line is 8-12 ° and is 0 ° near the line segment two ends of described light-emitting window and the angle of described light source mouth geometric center line, and the length of described seven line segments is increased successively by described light source mouth to described light-emitting window, in described first stretching bus, the angle between the line segment and described light source mouth place plane of described light source mouth is 51.5 °, and the angle between the line segment and described light source mouth place plane of described light-emitting window is 79.5 °, in described second stretching bus, being 51.5 ° near the angle between the line segment of described light source mouth and described light source mouth place plane, be 60 ° and angle between the line segment adjacent with this line segment and described light source mouth place plane is 90 ° near the angle between the line segment and described light source mouth place plane of described light-emitting window.
2. floodlight reflector as claimed in claim 1, it is characterized in that: in described first stretching bus, the angle between described line segment two ends and described light source mouth geometric center line is 10 °.
3. floodlight reflector as claimed in claim 1, is characterized in that: in described second stretching bus, along described light source mouth to the angle between the first six described line segment two ends of described light-emitting window and described light source mouth geometric center line be 10 °.
4. floodlight reflector as claimed in claim 1, is characterized in that: described light source mouth and described light-emitting window are square.
5. floodlight reflector as claimed in claim 4, it is characterized in that: the length of side of described light source mouth is 8 millimeters, the length of side of described light-emitting window is 21 millimeters.
6. floodlight reflector as claimed in claim 1, is characterized in that: on described two the first reflectings surface and two the second reflectings surface, plating is provided with reflectance coating.
7. floodlight reflector as claimed in claim 6, is characterized in that: described reflectance coating is aluminium film, and its reflectivity is higher than 75%.
8. a LED lamp, comprises the multiple LED chip being positioned circuit board, it is characterized in that: also comprise the floodlight reflector that arrange corresponding to described multiple LED chip, and described floodlight reflector is the floodlight reflector as described in claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110028574.6A CN102620238B (en) | 2011-01-26 | 2011-01-26 | Floodlight reflector and light-emitting diode (LED) lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110028574.6A CN102620238B (en) | 2011-01-26 | 2011-01-26 | Floodlight reflector and light-emitting diode (LED) lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102620238A CN102620238A (en) | 2012-08-01 |
| CN102620238B true CN102620238B (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110028574.6A Expired - Fee Related CN102620238B (en) | 2011-01-26 | 2011-01-26 | Floodlight reflector and light-emitting diode (LED) lamp |
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| Country | Link |
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| CN (1) | CN102620238B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501011A (en) * | 2014-12-22 | 2015-04-08 | 成都奥晶科技有限责任公司 | LED lamp with reflection unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807971A (en) * | 2006-01-27 | 2006-07-26 | 江苏江旭电子有限公司 | High-power LED high-brightness lighting lamp |
| CN101725903A (en) * | 2008-10-31 | 2010-06-09 | 台达电子工业股份有限公司 | Illuminating device and light reflecting cover thereof |
| CN101832512A (en) * | 2010-05-19 | 2010-09-15 | 海洋王照明科技股份有限公司 | Flood light reflector, flood light and motor boat |
-
2011
- 2011-01-26 CN CN201110028574.6A patent/CN102620238B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807971A (en) * | 2006-01-27 | 2006-07-26 | 江苏江旭电子有限公司 | High-power LED high-brightness lighting lamp |
| CN101725903A (en) * | 2008-10-31 | 2010-06-09 | 台达电子工业股份有限公司 | Illuminating device and light reflecting cover thereof |
| CN101832512A (en) * | 2010-05-19 | 2010-09-15 | 海洋王照明科技股份有限公司 | Flood light reflector, flood light and motor boat |
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| Publication number | Publication date |
|---|---|
| CN102620238A (en) | 2012-08-01 |
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Granted publication date: 20150218 Termination date: 20190126 |