CN104061493B - A kind of LED down - Google Patents
A kind of LED down Download PDFInfo
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- CN104061493B CN104061493B CN201410261054.3A CN201410261054A CN104061493B CN 104061493 B CN104061493 B CN 104061493B CN 201410261054 A CN201410261054 A CN 201410261054A CN 104061493 B CN104061493 B CN 104061493B
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Abstract
The present invention discloses a kind of LED down, it relates to the technical field of non-portable indoor illumination light fitting. It comprises LED luminous circuit board, and LED luminous circuit board top is provided with heating panel, and heating panel upper surface is the cross section of multiple centripetal distribution is streamlined heat-radiating rod, and the central position of heating panel upper surface is provided with sky district of confluxing; It is provided with above heating panel and the cover plate that heating panel matching form closes; Cover plate is provided with and the through hole confluxing air region shape and match in position; Tubular air guiding cover is installed above cover plate; Shape and the position of the air-flow beneath galleries opening at air-flow guiding cover middle part coordinate with through hole; Main heat radiation fan is installed in air-flow passage; LED luminous circuit board bottom is provided with transmittance plate; Air guide packing ring it is provided with between transmittance plate edge and Down lamp pedestal. The invention has the beneficial effects as follows that convection of air is abundant, good heat dissipation effect.
Description
Technical field
The present invention relates to the technical field of non-portable indoor illumination light fitting.
Background technology
Existing LED down mostly adopts passive heat radiation method on the market, one block of heating panel is against by LED luminous circuit board, heating panel is heat radiation bar or heat-radiating rod behind, but nonetheless, in view of LED down is generally arranged in the hole of top ceiling, therefore heat is often closed in and cannot discharge in time among hole, so even there is heating panel effectively to dispel the heat for a long time. The high-power LED tube light that cooling requirements is high is then often adopted heat radiation fan that heating panel is carried out active heat removal by some, but the design the flowing trend of heat radiation air not being optimized, and how LED down in existing market to the shape of the heat radiation bar on heating panel surface or heat-radiating rod and coordinates aspect not do special optimization design with heat radiation fan, so in fact these two aspects can be carried out research and the improvement of a dark step.
Summary of the invention
Technical problem to be solved by this invention is the technical deficiency for above-mentioned existence, it is provided that a kind of convection of air is abundant, the LED down of good heat dissipation effect.
The technical solution used in the present invention is: provide a kind of LED down, comprise LED luminous circuit board, the top of LED luminous circuit board is provided with heating panel, and heating panel upper surface is the cross section of multiple centripetal distribution is streamlined heat-radiating rod, and the central position of heating panel upper surface is provided with sky district of confluxing; It is provided with above heating panel and the cover plate of heating panel form fit; Cover plate is provided with and the through hole confluxing air region shape and match in position; Tubular air guiding cover is installed above cover plate; Match with through hole in shape and the position of the air-flow beneath galleries opening at air-flow guiding cover middle part; Main heat radiation fan is installed in air-flow passage; LED luminous circuit board bottom is provided with transmittance plate, is provided with air guide packing ring between transmittance plate edge and Down lamp pedestal; Described air guide packing ring preglabellar field is distributed with multiple air inlet recess and the projection for fixed transmittance plate; The anchor ring upper surface of described Down lamp pedestal is provided with radial air slot, Down lamp pedestal is fixed with lampshade and lampshade is positioned at the outside of air-flow guiding cover; Described lampshade lower annular is distributed with airflow hole.
Optimizing the technical program further, described cover plate is evenly distributed with four secondary heat radiation fans contrary with the wind direction of main heat radiation fan, described pair heat radiation fan is located between air-flow guiding cover and lampshade.
Optimizing the technical program further, four of LED down secondary heat radiation fan is connected in parallel on in electric line; Described lampshade top is provided with azimuth detecting apparatus; Lampshade top is provided with azimuth detecting apparatus; The four prescription bit switch electrodes that described azimuth detecting apparatus comprises tubular shell, annular is uniformly distributed in tubular shell inner side-wall; Every prescription bit switch electrode comprises the arc strip electrode slice that two insulation are arranged; Two electrode slices respectively positive and negative electrode wire with the confession electric line of the secondary heat radiation fan of relative direction be connected; The bottom surface of tubular shell is taper concave surface, and the center of taper concave surface is provided with master control switch electrode; Described master control switch electrode comprises four groups of electrodes that annular insulation is arranged, and often organizes the contact electrode that electrode comprises two and is connected with the positive and negative electrode wire of the confession electric line of a pair heat radiation fan respectively; Conductive metal balls also it is provided with in tubular shell.
Optimizing the technical program further, four of LED down secondary heat radiation fan is connected on in electric line; Lampshade top is provided with azimuth detecting apparatus; The four prescription position short circuit electrodes that described azimuth detecting apparatus comprises tubular shell, annular is uniformly distributed in tubular housing inner wall; Every prescription position short circuit electrode comprises the arc strip electrode slice that two insulation are arranged; Two electrode slices respectively positive and negative electrode wire with the confession electric line of mutually equidirectional pair heat radiation fan be connected; The bottom surface of tubular shell is taper concave surface; Conductive metal balls also it is provided with in tubular shell. All pair heat radiation fans go out that air quantity sum equals main heat radiation fan go out air quantity.
The invention has the beneficial effects as follows: 1, outside air can enter between heating panel and cover plate from the air inlet recess that air guide packing ring is reserved specially, compares than the heat radiation structure of traditional LED down and has better air inlet effect; 2, heat-radiating rod centripetal distribution on heating panel, and cross section is streamlined, such air-flow the resistance being subject to through heat-radiating rod is little and area that is that contact with heat conductive rod is bigger, heat radiation efficiency height. 3, hot blast is discharged to air-flow guiding cover outside by main heat radiation fan, and is discharged into outside from airflow hole and air slot, has better exhaust effect compared with the heat radiation structure of traditional LED down; 4, four secondary heat radiation fans are bled with main heat radiation fan and coordinating of being vented, it is possible to the air circulation in reinforcement lampshade, improve radiating effect further; 5, azimuth detecting apparatus according to the working order of the installation position control secondary heat radiation fan of LED down, can make hot blast discharge upward as far as possible, contribute to carrying high cooling efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the sectional view structure of Fig. 1;
Fig. 3 is the structural representation of air guide packing ring in Fig. 1;
Fig. 4 is the structural representation of heating panel in Fig. 1;
Fig. 5 is that air-flow moves towards schematic diagram;
Fig. 6 is the structural representation of the azimuth detecting apparatus of embodiment 1;
Fig. 7 is the schematic circuit of the secondary heat radiation fan of embodiment 1;
Fig. 8 is the structural representation of the azimuth detecting apparatus of embodiment 2;
Fig. 9 is the schematic circuit of the secondary heat radiation fan of embodiment 2.
Description of reference numerals:
1, LED luminous circuit board; 2, heating panel; 3, heat-radiating rod; 4, conflux sky district; 5, cover plate; 6, through hole; 7, air-flow guiding cover; 8, air-flow passage; 9, main heat radiation fan; 10, Down lamp pedestal; 11, transmittance plate; 12, air guide packing ring; 13, air inlet recess; 14, protruding; 15, anchor ring; 16, air slot; 17, lampshade;18, airflow hole; 19, secondary heat radiation fan; 20, tubular shell; 21, direction switch electrode; 22, electrode slice; 23, master control switch electrode; 24, contact; 25, conductive metal balls; 26, tubular shell; 27, orientation short circuit electrode.
Embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment 1
As shown in Figure 1, 2, the cross section that LED down comprises LED luminous circuit board 1, the top of LED luminous circuit board 1 is provided with heating panel 2, the upper surface of heating panel 2 is multiple centripetal distribution is streamlined heat-radiating rod 3, and the central position of the upper surface of heating panel 2 is provided with sky district 4 (see Fig. 4) of confluxing; The top of heating panel 2 is provided with and the cover plate 5 of heating panel 2 form fit; Cover plate 5 is provided with and the through hole 6 confluxing sky district 4 shape and position coordinates; The top of cover plate 5 is provided with tubular air guiding cover 7; Shape and the position of air-flow passage 8 lower openings in the middle part of air-flow guiding cover 7 coordinate with through hole 6; Main heat radiation fan 9 is installed in air-flow passage 8; The bottom of LED luminous circuit board 1 is provided with transmittance plate 11; It is provided with air guide packing ring 12 between the edge of transmittance plate 11 and Down lamp pedestal 10; The preglabellar field of air guide packing ring 12 is distributed with multiple air inlet recess 13 and the projection 14 (see Fig. 3) for fixed transmittance plate 11; Anchor ring 15 upper surface of Down lamp pedestal 10 is provided with the radial air slot 16 of annular spread; Being fixed with lampshade 17 on Down lamp pedestal 10, and lampshade 17 is located at air-flow guiding cover 7 outside, lampshade 17 lower annular is distributed with airflow hole 18.
Being evenly distributed with four secondary heat radiation fans 19 contrary with the wind direction of main heat radiation fan 9 on cover plate 5, secondary heat radiation fan 19 is located between air-flow guiding cover 7 and lampshade 17, and four secondary heat radiation fans 19 are connected in parallel on in electric line; Lampshade 17 top is provided with azimuth detecting apparatus; Azimuth detecting apparatus comprises tubular shell 20 and the annular four prescription bit switch electrodes 21 being uniformly distributed in tubular shell 20 inner side-wall; Every prescription bit switch electrode 21 comprises the arc strip electrode slice 22 that two insulation are arranged; Two electrode slices 22 respectively positive and negative electrode wire with the confession electric line of the secondary heat radiation fan 19 of relative direction be connected; The bottom surface of tubular shell 20 is taper concave surface, and the center of taper concave surface is provided with master control switch electrode 23; Master control switch electrode 23 comprises four groups of electrodes that annular insulation is arranged, and often organizes the contact 24 that electrode comprises two and is connected with the positive and negative electrode wire of the confession electric line of a pair heat radiation fan 19 respectively; Conductive metal balls 25 also it is provided with in tubular shell 20.
As shown in Figure 5, open main heat radiation fan 9, air-flow enters between cover plate 5 and heating panel 2 from the air inlet recess 13 of air guide packing ring 12, along the edge centripetal flow of heating panel 2 to sky district 4 of confluxing, the cross section of heat-radiating rod 3 is streamlined, the resistance of air-flow is little, and contact area is bigger, is conducive to heat radiation. Air-flow converges from sky district 4 of confluxing and enters air-flow passage 8, and then the region between lampshade 17 and air-flow guiding cover 7, discharges from airflow hole 18. When LED down is arranged on fixation holes, the air-flow discharged from airflow hole 18 is discharged from fixing cavity through air slot 16.
Secondary heat radiation fan 19 is contrary with the wind direction of main heat radiation fan 9, it is possible to accelerate the speed in air-flow region between lampshade 17 and air-flow guiding cover 7. As shown in Figure 6,7, four secondary heat radiation fans 19 are in parallel with in electric line, when LED down is arranged on vertical wall, conductive metal balls 25 touches a prescription bit switch electrode 21 of bottom, two electrode slices 22 are electrically connected, the secondary heat radiation fan 19 being in top is opened, and other secondary heat radiation fans 19 cut out so that hot blast is discharged from the top of LED down as far as possible;When LED down is arranged on the end face of level, conductive metal balls 25 enters taper concave surface, and four groups of electrodes of master control switch electrode 23 are all electrically connected; Four secondary heat radiation fans 19 are all opened, and hot blast is discharged from the surrounding of LED down.
Embodiment 2
As shown in Figure 8,9, the difference of the present embodiment and embodiment 1 is: four secondary heat radiation fans 19 are connected on in electric line; Lampshade 17 top is provided with azimuth detecting apparatus; The four prescription position short circuit electrodes 27 that azimuth detecting apparatus comprises tubular shell 26, annular is uniformly distributed in tubular shell 26 inwall; Every prescription position short circuit electrode 27 comprises the arc strip electrode slice 22 that two insulation are arranged; Two electrode slices 22 respectively positive and negative electrode wire with the confession electric line of mutually equidirectional pair heat radiation fan 19 be connected; The bottom surface of tubular shell 26 is taper concave surface; Conductive metal balls 25 also it is provided with in tubular shell 26.
When LED down is arranged on vertical wall, conductive metal balls 25 touches a prescription position short circuit electrode 27 of bottom, two panels electrode slice 22 is electrically connected, the secondary heat radiation fan 19 being in lower section is in the state being shorted, the power of other three secondary heat radiation fans 19 increases so that hot blast is discharged from the top of LED down as far as possible; When LED down is arranged on the end face of level, conductive metal balls 25 is positioned at taper concave surface bottommost, and not short-circuit any prescription position short circuit 27, four, electrode pair heat radiation fan 19 is all in running order, and hot blast is discharged from the surrounding of LED down.
Claims (4)
1. a LED down, it is characterised in that: comprising LED luminous circuit board (1), LED luminous circuit board (1) top is provided with heating panel (2); Heating panel (2) upper surface to be the cross section of multiple centripetal distribution be streamlined heat-radiating rod (3), the central position of heating panel (2) upper surface is provided with sky district (4) of confluxing, and heating panel (2) top is provided with and the cover plate (5) that heating panel (2) matching form closes; Cover plate (5) is provided with and the through hole (6) confluxing sky district (4) shape and match in position, and cover plate (5) top is provided with tubular air guiding cover (7); Match with through hole (6) in shape and the position of air-flow passage (8) lower openings at air-flow guiding cover (7) middle part; Main heat radiation fan (9) is installed in air-flow passage (8); LED luminous circuit board (1) bottom is provided with transmittance plate (11), is provided with air guide packing ring (12) between transmittance plate edge and Down lamp pedestal; Described air guide packing ring (12) preglabellar field is distributed with multiple air inlet recess (13) and the projection (14) for fixed transmittance plate (11); Anchor ring (15) upper surface of described Down lamp pedestal (10) is provided with radial air slot (16), Down lamp pedestal (10) is fixed with lampshade (17), and lampshade (17) is positioned at the outside of air-flow guiding cover (7); Described lampshade (17) lower annular is distributed with airflow hole (18).
2. LED down according to claim 1, it is characterized in that: being evenly distributed with four secondary heat radiations fan (19) contrary with the wind direction of main heat radiation fan (9) on described cover plate (5), described pair heat radiation fan (19) is located between air-flow guiding cover (7) and lampshade (17).
3. LED down according to claim 2, it is characterised in that: described four secondary heat radiations fan (19) are connected in parallel on in electric line; Lampshade (17) top is provided with azimuth detecting apparatus; Four prescriptions bit switch electrode (21) that described azimuth detecting apparatus comprises tubular shell (20), annular is uniformly distributed in tubular shell (20) inner side-wall; Every prescription bit switch electrode (21) comprises arc strip electrode slice (22) that two insulation are arranged;Described two electrode slices (22) respectively positive and negative electrode wire with the confession electric line of secondary heat radiation fan (19) of relative direction be connected; The bottom surface of tubular shell (20) is taper concave surface, and the center of taper concave surface is provided with master control switch electrode (23); Described master control switch electrode (23) comprises four groups of electrodes that annular insulation is arranged, and often organizes the contact (24) that electrode comprises two and is connected with the positive and negative electrode wire of the confession electric line of pair heat radiation fan (19) respectively; Conductive metal balls (25) also it is provided with in tubular shell (20).
4. LED down according to claim 2, it is characterised in that: described four secondary heat radiations fan (19) are connected on in electric line; Lampshade (17) top is provided with azimuth detecting apparatus; Described azimuth detecting apparatus comprises tubular shell (26) and annular is uniformly distributed in four prescription positions short circuit electrode (27) of tubular shell (26) inwall; Every prescription position short circuit electrode (27) comprises arc strip electrode slice (22) that two insulation are arranged; Two electrode slices (22) respectively positive and negative electrode wire with the confession electric line of mutually equidirectional pair heat radiation fan (19) be connected; The bottom surface of tubular shell (26) is taper concave surface; Conductive metal balls (25) also it is provided with in tubular shell (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261054.3A CN104061493B (en) | 2014-06-04 | 2014-06-04 | A kind of LED down |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261054.3A CN104061493B (en) | 2014-06-04 | 2014-06-04 | A kind of LED down |
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| CN104061493A CN104061493A (en) | 2014-09-24 |
| CN104061493B true CN104061493B (en) | 2016-06-08 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456307A (en) * | 2014-11-18 | 2015-03-25 | 江门市三泰照明制品有限公司 | LED grille lamp |
| CN105180120B (en) * | 2015-10-20 | 2019-03-05 | 广东雪莱特光电科技股份有限公司 | A kind of LED light cross-ventilation part |
| US11287103B2 (en) | 2019-04-22 | 2022-03-29 | Ism Lighting, Llc. | Low wattage balloon work light |
| CN110906234A (en) * | 2019-12-05 | 2020-03-24 | 广州千睿信息科技有限公司 | Quick radiating down lamp |
| CN113446527B (en) * | 2021-06-28 | 2023-02-28 | 安徽艳阳电气集团有限公司 | Nuclear illuminating lamp heat dissipation structure and nuclear illuminating lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH06338212A (en) * | 1993-05-31 | 1994-12-06 | Iwasaki Electric Co Ltd | Cooling method and cooler for small-sized metal halide lamp |
| CN201110528Y (en) * | 2007-08-24 | 2008-09-03 | 莫家贤 | LED lamp with blasting air type to radiate heat |
| CN101970935B (en) * | 2007-12-07 | 2014-07-23 | 奥斯兰姆有限公司 | Heat sink and lighting device comprising a heat sink |
| CN201232990Y (en) * | 2008-07-29 | 2009-05-06 | 金明武 | LED cartridge lamp |
| WO2011162048A1 (en) * | 2010-06-23 | 2011-12-29 | シーシーエス株式会社 | Led light source |
| JP2012182068A (en) * | 2011-03-02 | 2012-09-20 | Nk Works Kk | Led light irradiation device, and printer |
| CN102434799A (en) * | 2011-12-13 | 2012-05-02 | 广州南科集成电子有限公司 | LED (Light-Emitting Diode) light power supply assembly with wind scooper and LED lamp |
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