CN201206816Y

CN201206816Y - LED lamp

Info

Publication number: CN201206816Y
Application number: CNU200820094020XU
Authority: CN
Inventors: 刘宜三; 何立; 李宗隆; 肖旭华
Original assignee: Fuzhun Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Fuzhun Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2008-05-23
Filing date: 2008-05-23
Publication date: 2009-03-11
Anticipated expiration: 2018-05-23

Abstract

An LED light fitting comprises a radiator, an LED module group and a lampshade covering the LED module group; the radiator comprises a hollow tubular heat conductor; the heat conductor comprises a cooling part and a heat absorption part; a plurality of cooling fins are extended from the external surface of the cooling part; and the LED module group is attached on the heat absorption part of the heat conductor. The LED light fitting contacts the LED module group and absorbs the heat of the LED module group through the heat absorption part of the heat conductor of the radiator, and then transfers the heat to the cooling fins of the cooling part outside the light fitting, so as to well cool the LED module group of the light fitting in a limited space.

Description

Led lamp

Technical field

The utility model relates to a kind of lighting device, is meant a kind of led lamp especially.

Background technology

Along with the develop rapidly of electronic industry, the electronic component speed of service constantly promotes, and produces a large amount of heats during operation, and itself and system temperature are raise, and influences the stability of its system then.For guaranteeing that electronic component can normally move, a radiator is installed usually, thereon to discharge the heat that it is produced.

The traditional solution of electronic element radiating problem is normally installed a radiator on each heat-generating electronic elements, this radiator comprises the base plate that closely contacts with electronic component, is located at the some radiating fins on the base plate.But,, often concentrated relatively for some special heat-generating electronic elements for reaching optical effect preferably, so then can't use common radiator it is dispelled the heat.

For example, in the less led lamp of some volumes, need come with the radiator that a volume is limited very for a short time relatively simultaneously some light emitting diode module to be dispelled the heat, this be that common radiator can't be accomplished.

The utility model content

In view of this, be necessary to provide a kind of led lamp, its radiator structure can carry out good heat radiation to a plurality of light emitting diode module in the confined space.

A kind of led lamp, it comprises that a radiator, a light emitting diode module and are covered with the lampshade of described light emitting diode module, described radiator comprises the tubular heat carrier of a hollow, this heat carrier comprises a radiating part and an endothermic section, described radiating part outer surface is extended with some radiating fins, and described light emitting diode module adheres on the endothermic section of heat carrier.

The utility model led lamp contacts heat absorption by the endothermic section of the heat carrier of radiator with light emitting diode module, the fin that again heat is passed to the outside radiating part of light fixture dispels the heat, can carry out good heat radiation to the light emitting diode module in the limited space of light fixture, to guarantee that light emitting diode module efficiently, stably work.

With reference to the accompanying drawings, the utility model will be further described in conjunction with specific embodiments.

Description of drawings

Fig. 1 is the three-dimensional combination figure of a preferred embodiment of the utility model led lamp.

Fig. 2 is the three-dimensional exploded view of led lamp among Fig. 1.

Fig. 3 is the stereogram of led lamp among Fig. 1, does not wherein comprise lampshade and transmissive mirror.

Fig. 4 is the cutaway view of led lamp among Fig. 3.

The specific embodiment

Shown in Fig. 1-2, the utility model led lamp comprises that some light emitting diode module 100, are used to settle the radiator 200 of these some light emitting diode module 100, are installed on the lampshade 300 that some heat pipes 500, in this radiator 200 are installed on these radiator 200 middle parts, and a transmissive mirror 400 that is fixed on lampshade 300 bottoms.

See also Fig. 3 and Fig. 4, above-mentioned radiator 200 is the aluminium extruded type radiator, and it comprises the heat carrier 230 of a hollow tube-shape and the some radiating fins 240 that are connected with heat carrier 230.This heat carrier 230 comprises a radiating part 235 and an endothermic section 238.The radiating part 235 of this heat carrier 230 is extended with four connection ribs (figure is mark not) in axial direction from the surface.Each connection rib top is equipped with an installing hole to connect a lamp holder (figure does not show) by connector, and this lamp holder is a standard component, can buy from the market.These some radiating fins 240 extend to the excircle radiation from the outer surface of the radiating part 235 of this heat carrier 230, wherein are extended with three radiating fins 240 on each connection rib.Each radiating fin 240 extends parallel connection rib along the axial direction of heat carrier 230.At week of this heat carrier 230 even some short radiating fins 240 spaced apart upwards, the length that these some short radiating fins 240 make progress in these heat carrier 230 footpaths than around radiating fin 240 short, and axial length to.Form some gas channels between the adjacent radiating fin 240 for circulation of air.This heat carrier 230 has a columniform inner surface 254, is provided with some grooves 256 on inner surface 254 equably, with ccontaining heat pipe 500.Described groove 256 extends axially along heat carrier 230, and runs through connection endothermic section 238 and radiating part 235.Each heat pipe 500 is linearly, is contained in the groove 256 of the correspondence of heat carrier 230, and connects the radiating part 235 and endothermic section 238 of heat carrier 230.

Please consult Fig. 1 and Fig. 2 again, above-mentioned lampshade 300 is bowl structure, has a concave surface and is provided with a perforate 310 at this concave surface middle part, and the endothermic section 238 of heat carrier 230 is contained in this lampshade 300 by this perforate 310.The light that this lampshade 300 is used for light emitting diode module 100 is sent is towards a default direction reflection.

Described transmissive mirror 400 is made by suitable materials such as plastics, glass usually, to reach the effect of printing opacity.This transmissive mirror 400 is installed in the bottom of lampshade 300, and the cavity of forming a sealing with lampshade 300 is with ccontaining light emitting diode module 100 and stop objects such as dust, insect to enter the lighting effects that lampshade 300 influences light emitting diode module 100.

The surface that above-mentioned light emitting diode module 100 is installed on the endothermic section 238 of heat carrier 230 forms the light source of a three-dimensional to increase the illumination effect of led lamp.Each light emitting diode module 100 comprises a circuit board 120 and is fixed on some light emitting diodes 110 on this circuit board 120.This circuit board 120 is provided with circuit (figure does not show), to electrically connect with respective leds 110.Circuit on each circuit board 120 passes radiator 200 or other method and a power supply by electric wire (figure does not show) and electrically connects.

In this enforcement, the cross section of the endothermic section 238 of heat carrier 230 is a dodecagon, and endothermic section 238 outer surfaces comprise that 12 are the side plane 252 that longitudinally extends.Above-mentioned light emitting diode module 100 is installed on these side planes 252, and each light emitting diode module 100 comprises six light emitting diodes 110 along heat carrier 230 axially-aligned.12 side planes 252 to should endothermic section 238 are provided with 12 grooves 256 equably on this heat carrier inner surface 254, each groove 256 corresponding ccontaining heat pipe 500.Thereby the light emitting diode 110 on the heat pipe 500 direct respective side planes 252 is to absorb the heat of light emitting diode 110.Therefore, the heat of light emitting diode 110 generations can spread all over entire radiator 200 rapidly, equably.That is to say that the heat that light emitting diode 110 produces upwards transmits by heat carrier 230 and heat pipe 500 respectively, to be distributed to entire radiator 200 fast, last heat is distributed in the air by radiating fin 240.

The utility model led lamp is distributed in the air by the heat that radiator 200 and heat pipe 500 will concentrate on the three-dimensional light source generation of the light emitting diode module 100 in the little space, can in limited volume, realize the good heat radiating of light fixture, and then solve the heat dissipation problem of High Power LED light fixture.

Claims

1. led lamp, it comprises that a radiator, a light emitting diode module and are covered with the lampshade of described light emitting diode module, it is characterized in that: described radiator comprises the tubular heat carrier of a hollow, this heat carrier comprises a radiating part and an endothermic section, described radiating part outer surface is extended with some radiating fins, and described light emitting diode module adheres on the endothermic section of heat carrier.

2. led lamp as claimed in claim 1 is characterized in that: described lampshade is positioned between described radiating part and the endothermic section, and outside radiating part Zhang Yanshen, thereby light emitting diode module is covered with in it.

3. led lamp as claimed in claim 2 is characterized in that: described radiating fin outwards is radial extension from the radiating part surface of described heat carrier.

4. led lamp as claimed in claim 3 is characterized in that: described radiating fin extends along the axis direction of the radiating part of described heat carrier.

5. led lamp as claimed in claim 2 is characterized in that: some heat pipes are installed on the described heat carrier, connect radiating part and endothermic section.

6. led lamp as claimed in claim 5 is characterized in that: described heat carrier inner surface is provided with some equally distributed grooves, and described heat pipe correspondence is contained in these grooves.

7. led lamp as claimed in claim 6 is characterized in that: the endothermic section outer surface of described heat carrier comprises a plurality of side planes, and described light emitting diode module is installed on these side planes.

8. led lamp as claimed in claim 7 is characterized in that: described heat pipe places the inner surface of heat carrier respectively, and is corresponding with the light emitting diode module position that the heat carrier outer surface posts.

9. led lamp as claimed in claim 2 is characterized in that: described radiator is the aluminium extruded type radiator.

10. led lamp as claimed in claim 1, it is characterized in that: comprise that further one is installed on the transmissive mirror of described lampshade one end, the common formation one of this transmissive mirror and described lampshade is covered with the space of the endothermic section of described light emitting diode module and described heat carrier.