CN203413385U

CN203413385U - LED (light-emitting diode) down lamp

Info

Publication number: CN203413385U
Application number: CN201320350072.XU
Authority: CN
Inventors: 何佳林
Original assignee: Zhongshan City Jia Ling Lamp Ornaments Lighting Co Ltd
Current assignee: Zhongshan City Jia Ling Lamp Ornaments Lighting Co Ltd
Priority date: 2013-06-19
Filing date: 2013-06-19
Publication date: 2014-01-29
Anticipated expiration: 2023-06-19

Abstract

The utility model discloses an LED (light-emitting diode) down lamp, which comprises a heat dissipation lamp body. The bottom face of the heat dissipation lamp body is provided with an LED light source board; heat generated by the LED light source board is dissipated by the heat dissipation lamp body. The side wall of the heat dissipation lamp body is evenly provided with a plurality of cooling fins, so that the contact area between the whole heat dissipation lamp body and the air is increased to increase the heat dissipation area of the whole heat dissipation lamp body, and the heat is rapidly dissipated, and therefore, the overall heat dissipation efficiency is increased. The cooling fins and the heat dissipation lamp body are integrally molded by die casting, and therefore, the cooling fins and the heat dissipation lamp body are contacted in a gapless manner, and thermal resistance between the cooling fins and the heat dissipation lamp body can be reduced, so that the heat is integrally and evenly dissipated by the heat dissipation lamp body, heat dissipation is accelerated, and a very good heat dissipation effect is achieved.

Description

LED Down lamp

Technical field

The utility model relates to LED lighting field, particularly a kind of heat radiation LED Down lamp fast.

Background technology

At present, LED light source is long, pollution-free with the life-span, light efficiency high just progressively replace incandescent and fluorescent light, use LED to be called LED light fixture as the light fixture of light source, the primary structure of existing LED Down lamp has lamp body, LED light source, LED driver, reflector and/or lens, LED light source is arranged in lamp body, and reflector and/or lens cap are located on LED light source.The impact that is subject to temperature due to service life and the luminous mass of LED is very large, so, lamp body be generally the heat radiation body made by the high metal material of thermal conductivity factor or on lamp body fixed heat sink dispel the heat.It is subject matter to be solved in the utility model that the area of dissipation that how to increase heat radiation body improves radiating effect.

Utility model content

Main purpose of the present utility model is to provide a kind of LED Down lamp, is intended to increase the area of dissipation of heat radiation body, improves radiating effect.

The utility model proposes a kind of LED Down lamp, comprise lamp body, on described lamp body bottom surface, LED light source plate is installed, on described LED light source plate, be covered with reflector, on described reflector, be covered with light-passing board, at described lamp body upper end cover, be provided with face ring, described lamp body is the heat radiation body that thermal conductive metallic material is made, on the lateral wall of described heat radiation body, be evenly provided with some fin, described fin is turbine-like arrangement around the central shaft of described heat radiation body, and described fin and described heat radiation body are one-body molded.

Preferably, described heat radiation body is that aluminum alloy materials is made.

Preferably, described heat radiation body is heat radiation cup, and the shape of described reflector and described heat radiation body are adaptive.

Preferably, described light-passing board is PC plate.

Preferably, also comprise a cushion rubber, described cushion rubber is enclosed within the periphery of described light-passing board, and described ring pressed and put on described cushion rubber.

Preferably, on the sidewall of the upper end of described heat radiation body, be provided with at least two locating pieces and at least two connecting holes, on the sidewall of the lower end of described ring, be provided with described locating piece one by one corresponding and adaptive downward opening open slot and with described connecting hole installing hole one to one, described locating piece is placed in described open slot; Described connecting hole aligns with described installing hole, and is locked by threaded fastener.

The beneficial effect of LED Down lamp of the present utility model is:

The heat that LED light source produces is dispelled the heat by heat radiation body, sidewall at heat radiation body evenly arranges some fin, and the setting of fin increases heat radiation body contact area whole and air, increases the area of dissipation of heat radiation body integral body, quick heat radiating, thus whole radiating efficiency improved.Fin and heat radiation body are integrated die cast, thereby contact gapless between fin and heat radiation body, can reduce the thermal resistance between fin and heat radiation body, make the whole Homogeneouslly-radiating of heat radiation body, accelerate radiating rate, reach good radiating effect.

Accompanying drawing explanation

Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of LED Down lamp in the embodiment of the utility model LED Down lamp;

Fig. 2 is the schematic perspective view of LED Down lamp in the embodiment of the utility model LED Down lamp;

Fig. 3 is the rearview of LED Down lamp in the embodiment of the utility model LED Down lamp;

Fig. 4 is the front view of LED Down lamp in the embodiment of the utility model LED Down lamp.

The realization of the utility model object, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.

The specific embodiment

Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.

Referring to figs. 1 through Fig. 4, an embodiment of LED Down lamp of the present utility model is proposed, this LED Down lamp comprises lamp body, this lamp body is the heat radiation body 10 that thermal conductive metallic material is made, and has excellent heat dispersion.The cup-shaped setting of heat radiation body 10, for heat radiation cup, on heat radiation body 10 bottom surfaces, LED light source plate is installed, LED light source plate and heat radiation body 10 close contacts, the heat of the luminous generation of LED light source plate can conduct fast to heat radiation body 10, by heat radiation body 10, heat is shed.

On LED light source plate, be covered with reflector 20, the shape of reflector 20 and heat radiation body 10 adaptations, reflector 20 is arranged in heat radiation body 10, and fits with the internal face of heat radiation body 10.The bottom of reflector 20 is set to the light source mouth mating with LED light source plate, and reflector 20 covers on LED light source plate, and LED light source plate is arranged in light source mouth, and the light that LED light source plate sends penetrates after reflector 20 reflections again.On reflector 20, be covered with light-passing board 40, light-passing board 40 is PC plate, and light transmittance is high.

Upper end cover at heat radiation body 10 is provided with face ring 50, on the lateral wall of the upper end of heat radiation body 10, be provided with at least two locating pieces 102 and at least two connecting holes, on the sidewall of the lower end of face ring 50, be provided with locating piece 102 one by one corresponding and adaptive downward opening open slot 502 and with connecting hole installing hole one to one.Assembling heat radiation body 10 is during with face ring 50, and locating piece 102 aligns with open slot 502, and is placed in open slot 502, for fixing of the relative position of heat radiation body 10 and face ring 50.After heat radiation body 10 is located with face ring 50, connecting hole aligns with installing hole, screws in screw, and is locked, thereby heat radiation body 10 and face ring 50 are connected and fixed in corresponding connecting hole and installing hole.

After face ring 50 is fixing, the interior ring lower surface of face ring 50 is pressed and is put at the edge of light-passing board 40, makes light-passing board 40 fixing; And reflector 20 is pressed and put light-passing board 40 times, after light-passing board 40 is fixing, reflector 20 is also thereupon fixing, and a step is in place, simple and convenient.

The cushion rubber 30 that has an adaptation at the peripheral sleeve of light-passing board 40, face ring 50 is pressed and is put on cushion rubber 30, can prevent that light-passing board 40 from being damaged by pressure, also can make the space between reflector 20, light-passing board 40 and face ring 50 reduce, make to be mutually fixed between face ring 50, light-passing board 40, reflector 20.

Relative both sides in face ring outside wall surface are provided with torsion spring button 501, for the installation of LED Down lamp.

For improving radiating effect, heat radiation body 10 in the present embodiment adopts aluminum alloy materials to make, on the lateral wall of heat radiation body 10, be evenly provided with some fin 101, fin 101 is turbine-like arrangement around the central shaft of heat radiation body 10, the setting of fin 101 increases heat radiation body 10 contact area whole and air, increase the area of dissipation of heat radiation body 10 integral body, quick heat radiating, thus improve whole radiating efficiency.Fin 101 and heat radiation body 10 are integrated die cast, thereby between fin 101 and heat radiation body 10, contact gapless, can reduce the thermal resistance between fin 101 and heat radiation body 10, make the whole Homogeneouslly-radiating of heat radiation body 10, accelerate radiating rate, reach good radiating effect.

The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims

1. a LED Down lamp, comprise lamp body, on described lamp body bottom surface, LED light source plate is installed, on described LED light source plate, be covered with reflector, on described reflector, be covered with light-passing board, at described lamp body upper end cover, be provided with face ring, described lamp body is the heat radiation body that thermal conductive metallic material is made, it is characterized in that, on the lateral wall of described heat radiation body, be evenly provided with some fin, described fin is turbine-like arrangement around the central shaft of described heat radiation body, and described fin and described heat radiation body are one-body molded.

2. LED Down lamp according to claim 1, is characterized in that, described heat radiation body is that aluminum alloy materials is made.

3. LED Down lamp according to claim 2, is characterized in that, described heat radiation body is heat radiation cup, and the shape of described reflector and described heat radiation body are adaptive.

4. LED Down lamp according to claim 1, is characterized in that, described light-passing board is PC plate.

5. according to the LED Down lamp described in claim 1 or 4, it is characterized in that, also comprise a cushion rubber, described cushion rubber is enclosed within the periphery of described light-passing board, and described ring pressed and put on described cushion rubber.

6. LED Down lamp according to claim 5, it is characterized in that, on the sidewall of the upper end of described heat radiation body, be provided with at least two locating pieces and at least two connecting holes, on the sidewall of the lower end of described ring, be provided with described locating piece one by one corresponding and adaptive downward opening open slot and with described connecting hole installing hole one to one, described locating piece is placed in described open slot; Described connecting hole aligns with described installing hole, and is locked by threaded fastener.