CN102620236B - Floodlight reflector and LED lamp - Google Patents
Floodlight reflector and LED lamp Download PDFInfo
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- CN102620236B CN102620236B CN201110028191.9A CN201110028191A CN102620236B CN 102620236 B CN102620236 B CN 102620236B CN 201110028191 A CN201110028191 A CN 201110028191A CN 102620236 B CN102620236 B CN 102620236B
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- light source
- source mouth
- stretching
- line segment
- described light
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Abstract
The invention discloses a floodlight reflector and an LED lamp. The floodlight reflector is provided with a light source mouth arranged corresponding to a light source and a light emergence mouth arranged corresponding to a light emergence position; both the light source mouth and the light emergence mouth are rectangles, and are formed and surrounded by two first reflecting surfaces and two second reflecting surfaces which are oppositely arranged and symmetrical; all of the first reflecting surfaces and the second reflecting surfaces are stretching surfaces and are provided with first stretching generatrices and second stretching generatrices respectively; the first stretching generatrices and second stretching generatrices are multi-section lines in the same plane; each first stretching generatrix includes six line segments connected end to end, and the included angle between connection lines of two ends of each line segment and the geometric center of the light source mouth ranges from 8 degrees to 12 degrees; and each second stretching generatrix includes five line segments connected end to end, and the included angle between connection lines of two ends of each line segment and the geometric center of the light source mouth ranges from 8 degrees to 12 degrees. Compared with the prior art, the sizes of the floodlight reflector and the LED lamp can be greatly 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 °, described second stretching bus comprises five end to end line segments, angle between every bar line segment two ends and described light source mouth geometric center line is 8-12 °.
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, the angle between described line segment two ends and described light source mouth geometric center line is 10 °.
More specifically, in described first stretching bus, the angle between the line segment and described light source mouth place plane of described light source mouth is 52 °.
More specifically, in described second stretching bus, the angle between the line segment and described light source mouth place plane of described light source mouth is 53.5 °.
More specifically, described light source mouth is square.
More specifically, the length of side of described light source mouth is 8 millimeters.
More specifically, described two the first reflectings surface and two the second reflectings surface cross be 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 has said structure.
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 × 42mm × 18mm, and, adopt the light emitting anger of the LED lamp of aforementioned floodlight reflector can reach 20 ° × 80 °, 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 five end to end line segments (i.e. line segment 141 shown in Fig. 6,142,143,144,145), 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 52 °, 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, angle between 144 two ends and described light source mouth geometric center O line is also 10 °, angle between the line segment 141 and described light source mouth 11 place plane of described light source mouth 11 is 53.5 °, thus, line segment 141 is 36.5 ° with the angle of Z axis in figure, line segment 142 is 26.5 ° with the angle of Z axis in figure, line segment 143 is 16.5 ° with the angle of Z axis in figure, line segment 144 is 6.5 ° with the angle of Z axis in figure, line segment 145 is 50 ° with the angle of Z axis in figure, the length of line segment 145 can make the Extrude Face corresponding to line segment 145 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 is square, and its length of side is 8 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 × 42mm × 18mm.
In the present embodiment, described two the first reflectings surface 13 and two the second reflectings surface 14 cross and are 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 × 168mm × 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 × 80 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 (4)
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-emitting window is 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 10 °, and in described first stretching bus near the angle between the line segment of described light source mouth and described light source mouth place plane be 52 °, described second stretching bus comprises five end to end line segments, every bar line segment two ends in described second stretching bus in front four line segments of described light source mouth and the angle between described light source mouth geometric center line are 10 °, and in described second stretching bus near the angle between the line segment of described light source mouth and described light source mouth place plane be 53.5 °, Article 5 line segment in described second stretching bus and by described light source mouth geometric center and perpendicular to described light source mouth place plane straight line between angle be 50 °, described light source mouth is square, and its length of side is 8 millimeters.
2. 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.
3. floodlight reflector as claimed in claim 2, is characterized in that: described reflectance coating is aluminium film, and its reflectivity is higher than 75%.
4. 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, described floodlight reflector has the structure as described in claim 1-3 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110028191.9A CN102620236B (en) | 2011-01-26 | 2011-01-26 | Floodlight reflector and LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110028191.9A CN102620236B (en) | 2011-01-26 | 2011-01-26 | Floodlight reflector and LED lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102620236A CN102620236A (en) | 2012-08-01 |
| CN102620236B true CN102620236B (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110028191.9A Expired - Fee Related CN102620236B (en) | 2011-01-26 | 2011-01-26 | Floodlight reflector and LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102620236B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810874B (en) * | 2020-07-31 | 2022-11-25 | 特能热交换科技（中山）有限公司 | Outdoor projection lamp |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101749649A (en) * | 2010-02-03 | 2010-06-23 | 山西光宇半导体照明有限公司 | Square reflecting shade |
| CN101832513A (en) * | 2010-05-19 | 2010-09-15 | 海洋王照明科技股份有限公司 | Floodlight reflector, floodlight and powerboat |
-
2011
- 2011-01-26 CN CN201110028191.9A patent/CN102620236B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101749649A (en) * | 2010-02-03 | 2010-06-23 | 山西光宇半导体照明有限公司 | Square reflecting shade |
| CN101832513A (en) * | 2010-05-19 | 2010-09-15 | 海洋王照明科技股份有限公司 | Floodlight reflector, floodlight and powerboat |
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| Publication number | Publication date |
|---|---|
| CN102620236A (en) | 2012-08-01 |
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