CN201599678U

CN201599678U - LED down lamp

Info

Publication number: CN201599678U
Application number: CN2010201182752U
Authority: CN
Inventors: 徐滨; 张五一; 卢建国
Original assignee: ANHUI APIG XINHUI OPTOELECTRONIC TECHNOLOGY Co Ltd
Current assignee: ANHUI APIG XINHUI OPTOELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2010-02-10
Filing date: 2010-02-10
Publication date: 2010-10-06
Anticipated expiration: 2020-02-10

Abstract

The utility model relates to a LED down lamp, comprising a shell in bowl shape; a heat radiation fin on the outer surface at the bottom of the shell; a reflection bowl in bowl shape in the shell, wherein the bowl bottom of the reflection bowl is adhered with the bottom of the shell; a circuit board fixed on the bowl bottom of the reflection bowl; air holes on the side surface and the bottom of the shell; an air flow access between the two air holes, wherein a heat conduction material is coated between the circuit board and the bowl bottom of the reflection bowl; and a LED lamp on the circuit board. The heat is concentratively radiated from three aspects, firstly the heat radiation fin is arranged on the shell of the LED down lamp to transfer the heat; secondary air holes are opened on the side surface and the bottom of the shell to form an air conversion channel, so as to accelerate the whole heat radiation effect; finally the heat conduction material is coated between the circuit board and the bowl bottom of the reflection bowl to effectively conduct the heat with relative strong heat radiation effect.

Description

A kind of LED Down lamp

Technical field

The utility model relates to lighting, especially a kind of LED Down lamp.

Background technology

LED (light emitting diode) is a kind of light emitting semiconductor device, the LED lamp utilizes LED as the produced lighting of light source exactly, compare with fluorescent lamp with incandescent lamp, the LED light fixture has advantages such as power and energy saving, life-span be long, shock-resistant, is considered as perfect light source of new generation by the photoelectricity industry.

At present, though the LED lamp has been widely used in actual illumination, but still face the problem that radiating effect is poor, service life is short.In addition, the light of LED lamp is very dazzling, and promptly glare phenomenon is severe especially to the stimulation of eyes, influences children's eyesight especially; Also be not easy to simultaneously install.

The utility model content

The purpose of this utility model is to provide a kind of LED Down lamp with strong radiating effect, long service life.

For achieving the above object, the utility model has adopted following technical scheme: a kind of LED Down lamp, comprise housing, described housing is bowl-shape, the outer surface of housing bottom is provided with fin, housing is built-in to be bowl-shape reflector equally, fit in the bowl end of reflector and the bottom of housing, circuit board is installed in the bowl of reflector at the end, offer air-vent on the sidepiece of housing and the bottom respectively, form current path between two air-vents, the bowl of circuit board and reflector coated with thermally conductive material at the end, circuit board is provided with the LED lamp.

As shown from the above technical solution, the utility model at first, arranges on the housing of LED Down lamp that fin conducts heat by concentrate heat radiation aspect three; Secondly, on the sidepiece of housing and bottom, offer air-vent respectively, form air convection channel, thereby quicken whole radiating effect; At last, the utility model is coated with thermally conductive material between bowl end of circuit board and reflector also, guarantees effective conduction of heat, has stronger radiating effect.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2,3 is respectively A-A cutaway view, the B-B cutaway view of Fig. 1;

Fig. 4 is the part-structure schematic diagram that jump ring is installed among Fig. 2.

The specific embodiment

A kind of LED Down lamp comprises housing 10, and described housing 10 is bowl-shape, and the outer surface of housing 10 bottoms is provided with fin 11, and housing 10 is built-in to be bowl-shape reflector 20 equally, and reflector 20 inwall inwalls adopt the aluminium alloy polishing, are used for reflective.Fit in the bowl end of reflector 20 and the bottom of housing 10, circuit board 30 is installed in the bowl of reflector 20 at the end, described circuit board 30 is aluminium base or copper base, offer respectively on the sidepiece of housing 10 and the bottom between air-

vent

12,16, two air-vents and form current path, the bowl of circuit board 30 and reflector 20 coated with thermally conductive material at the end, described Heat Conduction Material adopts heat-conducting silicone grease, guarantee effective conduction of heat, circuit board 30 is provided with the LED lamp, as shown in Figure 2.

In conjunction with Fig. 1,2,3, the air-vent 12 that described housing 10 sidepieces are offered is positioned at the position of housing 10 sidepieces near housing 10 the rims of a bowl, and being circular even interval arranges, the air-vent 16 that housing 10 bottoms are offered is positioned at the junction of housing 10 bottoms and sidepiece, and is circular even interval layout.Be positioned at the air-

vent

12,16 on housing 10 sidepieces and the bottom, form air convection channel, thereby quicken whole radiating effect.Described fin 11 by the bottom of housing 10 to the sidepiece transition of postponing, and being divergent shape by middle mind-set edge arranges, form groove between the two adjacent fin 11, because circuit board 30 is the critical pieces that produce heat, this structure can farthest distribute by the heat of fin 11 with circuit board 30.

In conjunction with Fig. 1,2, described housing 10 the rim of a bowl places cover glare proof glass 40, described glare proof glass 40 adopts woven design glass, and the edge of glare proof glass 40 is provided with outer shroud 50, silica gel 60 is set as sealing between outer shroud 50, glare proof glass 40 and housing 10 the rims of a bowl.Adopt woven design glass printing opacity, can effectively cover the light of dazzling LED lamp, play the function of anti-dazzle; Adopt silica gel 60 sealings, can prevent that mosquito from entering housing 10 inside, avoids influencing luminous efficiency.

In conjunction with Fig. 1,2,4, described housing 10 sidepieces are provided with support 13 near on the position of housing 10 the rims of a bowl, one end of support 13 is installed on housing 10 sidepieces by screw, the other end of support 13 stretches to housing 10 bottoms, card 14 or jump ring 15 are installed on the support 13, and the end that suspends of card 14 or jump ring 15 stretches to housing 10 the rim of a bowl places one side.This structure is applicable to various installation environments, installation, convenient disassembly.

In conjunction with Fig. 1,2, gapped between the sidepiece of the sidepiece of described reflector 20 and housing 10, the lead-in wire 31 of LED lamp is connected with driving power 70 through this gap on the circuit board 30, driving power 70 connects the 220V alternating current through its lead-out wire 71, driving power 70 is installed in the power supply box body 80, power supply box body 80 is one-body molded by aluminium alloy compression casting with housing 10, and overall appearance is generous.

As seen, the utility model at first, arranges on the outer surface of housing 10 bottoms of LED Down lamp that fin 11 conducts heat by concentrate heat radiation aspect three; Secondly, on the sidepiece of housing 10 and bottom, offer air-

vent

12,16 respectively, form air convection channel, thereby quicken whole radiating effect; At last, the utility model is coated with thermally conductive material between bowl end of circuit board 30 and reflector 20 also, guarantees effective conduction of heat.Guarantee that from above-mentioned three aspects the LED Down lamp remains under the normal operating temperature always, have stronger radiating effect, suppress the service life that the light decay phenomenon influences lamp.

Claims

1. LED Down lamp, comprise housing (10), it is characterized in that: described housing (10) is bowl-shape, the outer surface of housing (10) bottom is provided with fin (11), housing (10) is built-in to be bowl-shape reflector (20) equally, fit in the bowl end of reflector (20) and the bottom of housing (10), circuit board (30) is installed in the bowl of reflector (20) at the end, offer air-vent (12 respectively on the sidepiece of housing (10) and the bottom, 16), form current path between two air-vents, the bowl of circuit board (30) and reflector (20) coated with thermally conductive material at the end, circuit board (30) is provided with the LED lamp.

2. LED Down lamp according to claim 1, it is characterized in that: the air-vent (12) that described housing (10) sidepiece is offered is positioned at the position of housing (10) sidepiece near housing (10) the rim of a bowl, and being circular even interval arranges, the air-vent (16) that housing (10) bottom is offered is positioned at the junction of housing (10) bottom and sidepiece, and is circular even interval layout.

3. LED Down lamp according to claim 1 is characterized in that: described fin (11), and is divergent shape by middle mind-set edge and arranges to the sidepiece transition of postponing by the bottom of housing (10), forms groove between the two adjacent fin (11).

4. LED Down lamp according to claim 1 is characterized in that: described Heat Conduction Material is a heat-conducting silicone grease, and described circuit board (30) is aluminium base or copper base, and described reflector (20) inwall adopts the aluminium alloy polishing.

5. LED Down lamp according to claim 1, it is characterized in that: described housing (10) the rim of a bowl place covers glare proof glass (40), the edge of glare proof glass (40) is provided with outer shroud (50), between outer shroud (50), glare proof glass (40) and housing (10) the rim of a bowl sealing is set.

6. LED Down lamp according to claim 1, it is characterized in that: described housing (10) sidepiece is provided with support (13) near on the position of housing (10) the rim of a bowl, one end of support (13) is installed on housing (10) sidepiece by screw, the other end of support (13) stretches to housing (10) bottom, support (13) is gone up card (14) or jump ring (15) is installed, and the end that suspends of card (14) or jump ring (15) stretches to housing (10) the rim of a bowl place one side.

7. LED Down lamp according to claim 1, it is characterized in that: gapped between the sidepiece of the sidepiece of described reflector (20) and housing (10), the lead-in wire (31) that circuit board (30) is gone up the LED lamp is connected with driving power (70) through this gap, driving power (70) is installed in the power supply box body (80), and power supply box body (80) is one-body molded with housing (10).

8. LED Down lamp according to claim 5 is characterized in that: described glare proof glass (40) adopts woven design glass, and silica gel (60) sealing is set between described outer shroud (50), glare proof glass (40) and housing (10) the rim of a bowl.