CN104061493A - LED (Light-Emitting Diode) tube lamp - Google Patents
LED (Light-Emitting Diode) tube lamp Download PDFInfo
- Publication number
- CN104061493A CN104061493A CN201410261054.3A CN201410261054A CN104061493A CN 104061493 A CN104061493 A CN 104061493A CN 201410261054 A CN201410261054 A CN 201410261054A CN 104061493 A CN104061493 A CN 104061493A
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- plate
- led
- air
- down lamp
- lampshade
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Abstract
The invention discloses an LED (Light-Emitting Diode) tube lamp and relates to the technical field of non-portable indoor-illumination lamps. The LED tube lamp comprises an LED luminescent circuit board, wherein the upper part of the LED luminescent circuit board is provided with a cooling plate; the upper surface of the cooling plate is provided with multiple cooling rods, and the cooling rods are centripetally distributed and have streamlined cross sections; the central position of the upper surface of the cooling plate is provided with a conflux hollow region; a cover plate matched with the cooling plate in shape is arranged above the cooling plate; the cover plate is provided with a through hole matched with the conflux hollow region in shape and position; a tubular airflow guide housing is arranged above the cover plate; the shape and position of an opening at the lower part of an airflow channel in the middle of the airflow guide housing are matched with those of the through hole; the airflow channel is internally provided with a main cooling fan; the lower part of the LED luminescent circuit board is provided with a transparent plate; an air guide gasket is arranged between the edge of the transparent plate and a tube lamp base. The LED tube lamp has the beneficial effects of sufficient air convection and good heat radiation effect.
Description
Technical field
The present invention relates to the technical field of non-portable indoor illumination light fitting.
Background technology
Existing LED Down lamp mostly adopts passive heat radiation method on the market, be about to LED luminous circuit board and pasting a heat sink, heat sink is heat sink strip or heat-radiating rod behind, but nonetheless, in view of LED Down lamp is generally arranged in the hole of ceiling, therefore heat cannot be discharged among tending to be closed in hole in time, even if therefore have heat sink effectively to dispel the heat for a long time.Some require high high-power LED tube light often to adopt radiator fan to carry out active heat removal to heat sink to heat radiation, but the design mobile trend of heat radiation air not being optimized, and LED Down lamp is in the market to the shape of the heat sink strip on heat sink surface or heat-radiating rod and how to coordinate aspect not do special optimal design with radiator fan, so in fact can carry out research and the improvement of a dark step to these two aspects.
Summary of the invention
Technical problem to be solved by this invention, is the technical deficiency for above-mentioned existence, provide a kind of cross-ventilation fully, the LED Down lamp of good heat dissipation effect.
The technical solution used in the present invention is: a kind of LED Down lamp is provided, comprise LED luminous circuit board, the top of LED luminous circuit board is provided with heat sink, and the cross section that heat sink upper surface is a plurality of centripetal distributions is fairshaped heat-radiating rod, and the center of heat sink upper surface is provided with the dead zone of confluxing; Heat sink top is provided with the cover plate with heat sink form fit; Cover plate is provided with the through hole matching with conflux air region shape and position; Cover plate top is provided with tubular air guide housing; Match with through hole in shape and the position of the gas channel lower openings at air-flow guide housing middle part; Main radiator fan is installed in gas channel; LED luminous circuit board bottom is provided with transmittance plate, between transmittance plate edge and Down lamp pedestal, is provided with air guide packing ring; Described air guide packing ring inward flange is distributed with a plurality of air inlet recesses and for the projection of fixed transmittance plate; The anchor ring upper surface of described Down lamp pedestal is provided with radial air slot, is fixed with the outside that lampshade and lampshade are positioned at air-flow guide housing on Down lamp pedestal; Described lampshade lower annular is distributed with airflow hole.
Further optimize the technical program, be evenly distributed with four secondary radiator fans contrary with the wind direction of main radiator fan on described cover plate, described secondary radiator fan is located between air-flow guide housing and lampshade.
Further optimize the technical program, four secondary radiator fans of LED Down lamp are connected in parallel in supply line; Described lampshade top is provided with azimuth detecting apparatus; Lampshade top is provided with azimuth detecting apparatus; Described azimuth detecting apparatus comprises that tubular shell, annular are uniformly distributed in four prescription bit switch electrodes of tubular shell madial wall; Every prescription bit switch electrode comprises the arc strip electrode slice that two insulation arrange; Two electrode slices are connected with the both positive and negative polarity wire of the supply line of the secondary radiator fan of relative direction respectively; 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 arranges, and every group of electrode comprises two contact electrode that are connected with the both positive and negative polarity wire of the supply line of a secondary radiator fan respectively; In tubular shell, be also provided with conductive metal balls.
Further optimize the technical program, four secondary Cascaded radiator fans of LED Down lamp are in supply line; Lampshade top is provided with azimuth detecting apparatus; Described azimuth detecting apparatus comprises that tubular shell, annular are uniformly distributed in four prescription position short-circuiting electrodes of tubular shell inwall; Every prescription position short-circuiting electrode comprises the arc strip electrode slice that two insulation arrange; Two electrode slices are connected with the both positive and negative polarity wire of the supply line of the secondary radiator fan of equidirectional respectively; The bottom surface of plate-like housing is taper concave surface; In tubular shell, be also provided with conductive metal balls.The air output sum of all secondary radiator fans equals the air output of main radiator fan.
The invention has the beneficial effects as follows: 1, extraneous air can enter between heat sink and cover plate from the special reserved air inlet recess of air guide packing ring, than the radiator structure of traditional LED Down lamp, compares and has better air inlet effect; 2, heat-radiating rod centripetal distribution on heat sink, and cross section is streamlined, the resistance area little and that contact with heat conductive rod that air-flow is subject to when through heat-radiating rod is like this larger, and radiating efficiency is high.3, that hot blast is discharged to air-flow guide housing is outside for main radiator fan, and is discharged into outside from airflow hole and air slot, compares and has better exhaust effect with the radiator structure of traditional LED Down lamp; 4, four secondary radiator fans are bled with main radiator fan and the coordinating of exhaust, and can strengthen the circulation of air in lampshade, further improve radiating effect; 5, azimuth detecting apparatus can be controlled the duty of secondary radiator fan according to the installation position of LED Down lamp, and hot blast is discharged as far as possible upward, contributes to improve radiating efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the profile 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 heat sink 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 circuit diagram of the secondary radiator fan of embodiment 1;
Fig. 8 is the structural representation of the azimuth detecting apparatus of embodiment 2;
Fig. 9 is the circuit diagram of the secondary radiator fan of embodiment 2.
description of reference numerals:
1, LED luminous circuit board; 2, heat sink; 3, heat-radiating rod; 4, the dead zone of confluxing; 5, cover plate; 6, through hole; 7, air-flow guide housing; 8, gas channel; 9, main radiator fan; 10, Down lamp pedestal; 11, transmittance plate; 12, air guide packing ring; 13, air inlet recess; 14, projection; 15, anchor ring; 16, air slot; 17, lampshade; 18, airflow hole; 19, secondary radiator fan; 20, tubular shell; 21, direction switch electrode; 22, electrode slice; 23, master control switch electrode; 24, contact; 25, conductive metal balls; 26, plate-like housing; 27, orientation short-circuiting electrode.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
Embodiment 1
As shown in Figure 1, 2, LED Down lamp comprises that it is fairshaped heat-radiating rod 3 that the top of LED luminous circuit board 1, LED luminous circuit board 1 is provided with the cross section that the upper surface of heat sink 2, heat sink 2 is a plurality of centripetal distributions, and the center of the upper surface of heat sink 2 is provided with the dead zone 4 (referring to Fig. 4) of confluxing; The top of heat sink 2 is provided with the cover plate 5 with heat sink 2 form fit; Cover plate 5 is provided with the through hole 6 coordinating with conflux dead zone 4 shapes and position; The top of cover plate 5 is provided with tubular air guide housing 7; Shape and the position of gas channel 8 lower openings at air-flow guide housing 7 middle parts coordinate with through hole 6; Main radiator fan 9 is installed in gas channel 8; The bottom of LED luminous circuit board 1 is provided with transmittance plate 11; Between the edge of transmittance plate 11 and Down lamp pedestal 10, be provided with air guide packing ring 12; The inward flange of air guide packing ring 12 is distributed with a plurality of air inlet recesses 13 and for the projection 14 (referring to Fig. 3) of fixed transmittance plate 11; Anchor ring 15 upper surfaces of Down lamp pedestal 10 are provided with the radial air slot 16 of annular spread; On Down lamp pedestal 10, be fixed with lampshade 17, and lampshade 17 is located at air-flow guide housing 7 outsides, lampshade 17 lower annular are distributed with airflow hole 18.
On cover plate 5, be evenly distributed with four secondary radiator fans 19 contrary with the wind direction of main radiator fan 9, secondary radiator fan 19 is located between air-flow guide housing 7 and lampshade 17, and four secondary radiator fans 19 are connected in parallel in supply line; Lampshade 17 tops are provided with azimuth detecting apparatus; Azimuth detecting apparatus comprises that tubular shell 20 and annular are uniformly distributed in four prescription bit switch electrodes 21 of tubular shell 20 madial walls; Every prescription bit switch electrode 21 comprises the arc strip electrode slice 22 that two insulation arrange; Two electrode slices 22 are connected with the both positive and negative polarity wire of the supply line of the secondary radiator fan 19 of relative direction respectively; 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 arranges, and every group of electrode comprises two contacts 24 that are connected with the both positive and negative polarity wire of the supply line of a secondary radiator fan 19 respectively; In tubular shell 20, be also provided with conductive metal balls 25.
As shown in Figure 5, open main radiator fan 9, air-flow enters between cover plate 5 and heat sink 2 from the air inlet recess 13 of air guide packing ring 12, along the edge centripetal flow of heat sink 2 to the dead zone 4 of confluxing, the cross section of heat-radiating rod 3 is streamlined, resistance to air-flow is little, and contact area is larger, is conducive to heat radiation.Air-flow converges and enters gas channel 8 from the dead zone 4 of confluxing, and then through the region between lampshade 17 and air-flow guide housing 7, from airflow hole 18, discharges.When LED Down lamp is arranged on fixation holes, the air-flow process air slot 16 of discharging from airflow hole 18 is from fixedly discharging cavity.
Secondary radiator fan 19 is contrary with the wind direction of main radiator fan 9, can accelerate air-flow through the speed in region between lampshade 17 and air-flow guide housing 7.As shown in Figure 6,7, four secondary radiator fans 19 in parallel with supply line in, when LED Down lamp is arranged on vertical wall, conductive metal balls 25 touches prescription bit switch electrode 21 of below, two electrode slices 22 are electrically connected to, secondary radiator fan 19 in top is opened, and other secondary radiator fans 19 cut out, and hot blast is discharged from the top of LED Down lamp as far as possible; When LED Down lamp 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 to; Four secondary radiator fans 19 are all opened, and hot blast is discharged from the surrounding of LED Down lamp.
Embodiment 2
As shown in Figure 8,9, the difference of the present embodiment and embodiment 1 is: four secondary radiator fans 19 are connected in supply line; Lampshade 17 tops are provided with azimuth detecting apparatus; Azimuth detecting apparatus comprises that plate-like housing 26, annular are uniformly distributed in four prescription position short-circuiting electrodes 27 of plate-like housing 27 inwalls; Every prescription position short-circuiting electrode 27 comprises the arc strip electrode slice 22 that two insulation arrange; Two electrode slices 22 are connected with the both positive and negative polarity wire of the supply line of the secondary radiator fan 19 of equidirectional respectively; The bottom surface of plate-like housing 26 is taper concave surface; In plate-like housing 26, be also provided with conductive metal balls 25.
When LED Down lamp is arranged on vertical wall, conductive metal balls 25 touches prescription position short-circuiting electrode 27 of below, two plate electrode sheets 22 are electrically connected to, secondary radiator fan 19 in below is in by the state of short circuit, the increase of output power of other three secondary radiator fans 19 is discharged hot blast as far as possible from the top of LED Down lamp; When LED Down lamp is arranged on the end face of level, conductive metal balls 25 is positioned at taper concave surface bottommost, and 27, four secondary radiator fans 19 of any prescription position short-circuiting electrode of not short circuit are all in running order, and hot blast is discharged from the surrounding of LED Down lamp.
Claims (4)
1. a LED Down lamp, is characterized in that: comprise LED luminous circuit board (1), LED luminous circuit board (1) top is provided with heat sink (2); The cross section that heat sink (2) upper surface is a plurality of centripetal distributions is fairshaped heat-radiating rod (3), the center of heat sink (2) upper surface is provided with the dead zone of confluxing (4), and heat sink (2) top is provided with the cover plate (5) matching with heat sink (2) shape; Cover plate (5) is provided with the through hole (6) matching with the dead zone of confluxing (4) shape and position, and cover plate (5) top is provided with tubular air guide housing (7); Match with through hole (6) in shape and the position of gas channel (8) lower openings at air-flow guide housing (7) middle part; Main radiator fan (9) is installed in gas channel (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) inward flange is distributed with a plurality of air inlet recesses (13) and for the projection (14) of fixed transmittance plate (11); Anchor ring (15) upper surface of described Down lamp pedestal (10) is provided with radial air slot (16), be fixed with lampshade (17), and lampshade (17) is positioned at the outside of air-flow guide housing (7) on Down lamp pedestal (10); Described lampshade (17) lower annular is distributed with airflow hole (18).
2. LED Down lamp according to claim 1, it is characterized in that: on described cover plate (5), be evenly distributed with four secondary radiator fans (19) contrary with the wind direction of main radiator fan (9), described secondary radiator fan (19) is located between air-flow guide housing (7) and lampshade (17).
3. LED Down lamp according to claim 2, is characterized in that: described four secondary radiator fans (19) are connected in parallel in supply line; Lampshade (17) top is provided with azimuth detecting apparatus; Described azimuth detecting apparatus comprises that tubular shell (20), annular are uniformly distributed in four prescription bit switch electrodes (21) of tubular shell (20) madial wall; Every prescription bit switch electrode (21) comprises the arc strip electrode slice (22) that two insulation arrange; Described two electrode slices (22) are connected with the both positive and negative polarity wire of the supply line of the secondary radiator fan (19) of relative direction respectively; 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 arranges, and every group of electrode comprises two contacts (24) that are connected with the both positive and negative polarity wire of the supply line of a secondary radiator fan (19) respectively; In tubular shell (20), be also provided with conductive metal balls (25).
4. LED Down lamp according to claim 2, is characterized in that: described four secondary radiator fans (19) are connected in supply line; Lampshade (17) top is provided with azimuth detecting apparatus; Described azimuth detecting apparatus comprises that plate-like housing (26) and annular are uniformly distributed in four prescription position short-circuiting electrodes (27) of plate-like housing (27) inwall; Every prescription position short-circuiting electrode (27) comprises the arc strip electrode slice (22) that two insulation arrange; Two electrode slices (22) are connected with the both positive and negative polarity wire of the supply line of the secondary radiator fan (19) of equidirectional respectively; The bottom surface of plate-like housing (26) is taper concave surface; In plate-like housing (26), be also provided with conductive metal balls (25).
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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN104061493A true CN104061493A (en) | 2014-09-24 |
| CN104061493B CN104061493B (en) | 2016-06-08 |
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| CN201410261054.3A Active CN104061493B (en) | 2014-06-04 | 2014-06-04 | A kind of LED down |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104456307A (en) * | 2014-11-18 | 2015-03-25 | 江门市三泰照明制品有限公司 | LED grille lamp |
| CN105180120A (en) * | 2015-10-20 | 2015-12-23 | 广东雪莱特光电科技股份有限公司 | Air convection piece for LED 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 |
| CN113446527A (en) * | 2021-06-28 | 2021-09-28 | 安徽艳阳电气集团有限公司 | Nuclear illuminating lamp heat dissipation structure and nuclear illuminating lamp |
| US11287103B2 (en) | 2019-04-22 | 2022-03-29 | Ism Lighting, Llc. | Low wattage balloon work light |
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| JP2012182068A (en) * | 2011-03-02 | 2012-09-20 | Nk Works Kk | Led light irradiation device, and printer |
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Cited By (6)
| 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 |
| CN105180120A (en) * | 2015-10-20 | 2015-12-23 | 广东雪莱特光电科技股份有限公司 | Air convection piece for LED light |
| 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 |
| CN113446527A (en) * | 2021-06-28 | 2021-09-28 | 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 | Publication date |
|---|---|
| CN104061493B (en) | 2016-06-08 |
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