CN101487582B

CN101487582B - LED lamp

Info

Publication number: CN101487582B
Application number: CN2008100659314A
Authority: CN
Inventors: 帅春江; 余光; 赖振田
Original assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Current assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Priority date: 2008-01-18
Filing date: 2008-01-18
Publication date: 2010-09-29
Anticipated expiration: 2028-01-18
Also published as: CN101487582A

Abstract

An LED light fitting comprises a radiator, a plurality of LED modules and a lampshade, wherein, the radiator comprises a heat-conducting seat which is provided with a convex surface and a concave surface that is arranged correspondingly to the convex surface, and a plurality of radiating fins extends out from the concave surface; the LED modules cling to the convex surface of the heat-conducting seat, and the lampshade is combined on the radiator to cover the LED modules. The LED modules of the LED light fitting are arranged on the convex surface of the heat-conducting seat of the radiator, so that the stereoscopic lighting effect of the LED light fitting can be realized, and the LED light fitting is suitable for interior illumination. In addition, the heat-conducting seat of the radiator is connected with the LED modules, can absorb the heat generated by the LED modules and further transmits the heat to the radiating fins for rapid emission, so that better heat dissipation of the LED light fitting can be realized.

Description

Led lamp

Technical field

The present invention relates to a kind of lighting device, particularly a kind of led lamp.

Background technology

Light emitting diode is as a kind of light emitting source efficiently, have environmental protection, energy-conservation, the life-span is long etc., and many characteristics are applied to various fields widely.And the module of being made up of light emitting diode at present can produce light source high-power, high brightness, thus will be widely, revolutionaryly replace conventional lighting sources such as incandescent lamp, and then become the main light source that meets the energy-conserving and environment-protective theme.

Yet the heat that the light emitting diode that power, brightness are big more or its module produce is big more, and is difficult to distribute in the less relatively led lamp of volume.So light emitting diode remains at big heat dissipation technology bottleneck, this also is the most crucial part of difficult breakthrough of high-power at present, the high brightness LED lamp tool marketization.The general heat sink conception of industry is that the very big radiator of an area of dissipation is set in this light fixture at present.The common like this radiator shared volume in light fixture that can cause is big, and overall lamp is specifically long-pending also big, makes this fitting structure volume be difficult to apply in room lighting greatly.

In addition, because light emitting diode all has certain irradiating angle, and the light emitting diode in the led lamp all is arranged on the straight circuit board usually, makes the irradiated area of light fixture limited, all is difficult to make the user satisfied under a lot of situations.

Summary of the invention

In view of this, be necessary to provide a kind of volume the less good led lamp that dispels the heat again.

A kind of led lamp, comprise a radiator, some light emitting diode module and a lampshade, this radiator comprises a heat-conducting seat, the concave surface that this heat-conducting seat has a convex surface and is oppositely arranged with this convex surface, some radiating fins are extended by this concave surface, described light emitting diode module is attached on the convex surface of this heat-conducting seat, and described lampshade is incorporated on the radiator and described light emitting diode module is covered in it.

Compared with prior art, the light emitting diode module of led lamp of the present invention is located on the convex surface of heat-conducting seat of radiator, can realize the three-dimensional lighting effect of led lamp, is fit to room lighting.In addition, the heat-conducting seat of radiator links to each other with light emitting diode module, can absorb the heat of light emitting diode module generation and further be delivered to radiating fin to distribute apace, can realize the led lamp better radiating effect.

With reference to the accompanying drawings, the invention 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 led lamp of the present invention.

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

Fig. 3 is the side view of led lamp among Fig. 1.

The specific embodiment

Please refer to Fig. 1-2, led lamp of the present invention comprises a radiator 10, adhere on some light emitting diode module 20, the lamp bracket 30 that is connected with radiator 10 on the radiator 10 and cover at lampshade 40 on the radiator 10.

Radiator 10 is by one-body molded making such as high thermal conductivity material such as copper, aluminium or its alloys.Radiator 10 comprises that one has the heat-conducting seat 12 of curved surface and extends the some radiating fins 14 that are provided with from heat-conducting seat 12.In this embodiment, heat-conducting seat 12 just is the hemicycle tubular, is appreciated that ground, and in different embodiment, the circumference amplitude of heat-conducting seat 12 can be different.Radiating fin 14 also is that inner surface extends by the concave surface of heat-conducting seat 12, forms the runner (not indicating) that air feed stream passes through between adjacent two radiating fins 14.Radiating fin 14 converges extension (please join Fig. 3) towards the axle center of heat-conducting seat 12, make the width of runner upwards be reduced gradually by the inner surface place of heat-conducting seat 12.Radiating fin 14 runs through the inner surface of whole heat-conducting seat 12 along extending axially of heat-conducting seat 12.The convex surface of heat-conducting seat 12 also is to form several smooth belt-like zones that extend vertically on the outer surface, in order to installing light emitting diode module 20 thereon.Also form several screws (figure do not show) on the outer surface of heat-conducting seat 12, pass as screw for fixture (figure does not show) light emitting diode module 20 is fixedly arranged on the outer surface of heat-conducting seat 12.

Light emitting diode module 20 (in the present embodiment being three) axially is sticked on the outer surface of heat-conducting seat 12 equably along heat-conducting seat 12.Each light emitting diode module 20 comprises the circuit board 22 of a strip and somely is layed in light-emitting diode component 24 on the circuit board 22 along circuit board 22 length directions.Also form on each circuit board 22 some screws (indicate) for screw by light emitting diode module 20 is fixedly arranged on the outer surface of heat-conducting seat 12.

Lamp bracket 30 comprises a pedestal 34 and is bent downwardly two connecting rods 32 that extension forms by pedestal 34.Pedestal 34 places the top of radiator 10, and it comprises that the base plate 35 of a circle reaches by the upwardly extending cylindrical barrel of the circumferential edges of base plate 35 (indicating).This base plate 35 and barrel surround an accommodation space (not indicating) and are used for installing as assemblies such as rectifiers.Two connecting rods 32 roughly are round bar shape, are in the same perpendicular, and are along the axis of pedestal 34 and are symmetrical arranged.Connecting rod 32 can be hollow stem, but supply lines (figure do not show) passes to form with light emitting diode module 20 and is electrically connected in it, and then power supply is provided when working for this led lamp.The free end 321 of two connecting rods 32 is connected with the two ends of the heat-conducting seat 12 of radiator 10 respectively.Or rather, this two free end 321 is connected to the centre position at the two ends of heat-conducting seat 12.Lamp bracket 30 can or mode such as screw togather and radiator 10 links together by welding.

Lampshade 40 comprises that a curved outer wall 42 and two are meniscate sidewall 41.Outer wall 42 is consistent with the shape of the heat-conducting seat 12 of radiator 10, also roughly be the hemicycle tubular, but the radius of outer wall 42 is bigger than the radius of heat-conducting seat 12.Two side 41 forms perpendicular to outer wall 42 extensions along the two ends of outer wall 42 respectively.Two side 41 is located at the two ends of the heat-conducting seat 12 of radiator 10.The centre position of the top of two side 41 forms a roughly rounded opening 43 respectively.The free end 321 of the connecting rod 32 of lamp bracket 30 can pass this opening 43 and link to each other with the two ends of the heat-conducting seat 12 of radiator 10.Outer wall 42 is located on the outer surface of heat-conducting seat 12 of radiator 10, because the radius of the radius ratio heat-conducting seat 12 of outer wall 42 is big, thereby between the outer wall 42 of lampshade 40 and heat-conducting seat 12, leave necessary space, light emitting diode module 20 can be installed on the outer surface of heat-conducting seat 12 easily.Lampshade 40 can be locked together on the radiator 10 by screw (figure does not show).Lampshade 40 can be made by transparent or semitransparent material.

During this led lamp work, because light emitting diode module 20 is sticked on the curved outer surface of the heat-conducting seat 12 of radiator 10, thereby the light that sends of light emitting diode module 20 has three-dimensional effect, can realize illumination in a big way, and it is required to satisfy the user.In addition, the heat that the heat-conducting seat 12 of this radiator 10 produces in the time of can absorbing light emitting diode module 20 work also is delivered on the radiating fin 14, and then be dispersed in the surrounding air.

Claims

1. led lamp, comprise a radiator, some light emitting diode module and a lampshade, it is characterized in that: this radiator comprises a heat-conducting seat, this heat-conducting seat comprises a convex surface and a concave surface that is oppositely arranged with this convex surface, some radiating fins are extended by this concave surface, described light emitting diode module is attached on the convex surface of this heat-conducting seat, described lampshade is incorporated on the radiator and described light emitting diode module is covered in it, this led lamp also comprises a lamp bracket that is connected with radiator, this lamp bracket comprises two connecting rods and connects a pedestal of two connecting rods, this pedestal places the top of radiator, and this two connecting rod links to each other with the two ends of heat-conducting seat respectively.

2. led lamp as claimed in claim 1 is characterized in that: described heat-conducting seat is semi-cylindrical shaped, and described radiating fin is located on the inner surface of this semi-cylindrical shaped heat-conducting seat, and described light emitting diode module is located on the outer surface of heat-conducting seat.

3. led lamp as claimed in claim 2 is characterized in that: described radiating fin runs through the inner surface of whole heat-conducting seat along extending axially of heat-conducting seat, and described radiating fin converges extension towards the axle center of heat-conducting seat.

4. led lamp as claimed in claim 2 is characterized in that: described light emitting diode module axially is located on the outer surface of heat-conducting seat equably along heat-conducting seat.

5. led lamp as claimed in claim 1 is characterized in that: described two connecting rods are connected with the centre position at the two ends of heat-conducting seat.

6. led lamp as claimed in claim 5 is characterized in that: described two connecting rods are along pedestal and are symmetrical arranged.

7. led lamp as claimed in claim 1, it is characterized in that: described lampshade comprises an outer wall and the two side of being extended perpendicular to this outer wall by the two ends of this outer wall, this outer wall covers on the heat-conducting seat of radiator, and this two side covers at the two ends of heat-conducting seat.

8. led lamp as claimed in claim 7 is characterized in that: the shape of the outer wall of described lampshade is consistent with the heat-conducting seat of radiator.

9. led lamp as claimed in claim 7 is characterized in that: the edge of the two side of described lampshade is respectively equipped with an opening, wears and then links to each other with the two ends of the heat-conducting seat of radiator for two connecting rods of lamp bracket.