CN101457915B

CN101457915B - LED lamp

Info

Publication number: CN101457915B
Application number: CN2007101251204A
Authority: CN
Inventors: 张宇; 张文祥; 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: 2007-12-14
Filing date: 2007-12-14
Publication date: 2010-12-01
Anticipated expiration: 2027-12-14
Also published as: CN101457915A

Abstract

A light emitting diode luminaire comprises a base, a coping arranged above the base, a plurality of radiators and a plurality of light emitting diode modules attached to the corresponding radiators; wherein, the radiators are arranged in a surrounding way at intervals between the coping and the base; and the light emitting diode modules are attached to the inside surface of the radiators. Each light emitting diode module is arranged on the inside surface of the radiator and sheds lights towards the interval between the other two radiators to form a three-dimensional light source with lights shedding towards all directions so that the surroundings of the light emitting diode luminaire are all illuminated; meanwhile, the light emitting diode modules are respectively arranged on the radiators at intervals to avoid heat interference so that the overall radiating effect is guaranteed.

Description

Led lamp

Technical field

The present invention relates to a kind of led lamp, particularly a kind of led lamp that is used for outdoor lighting.

Background technology

LED source is as a kind of emerging third generation light source, though can't replace traditional incandescent lamp on a large scale now, it has advantages such as long working life, energy-saving and environmental protection, and is generally had an optimistic view of by market.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 traditional conventional lighting sources such as incandescent lamp, and then become the main light source that meets the energy-conserving and environment-protective theme.

Yet along with the power of light emitting diode or its module, the increase of brightness, the heat of its generation is also increasing, if can not properly settle the heating problem of light emitting diode, the working life of led lamp will be had a strong impact on.Therefore one radiator all is installed on light emitting diode module usually it is dispelled the heat, this radiator has the some radiating fins that form on a flat base plate and the base plate.For some powerful light fixtures, its light emitting diode generally is to be arranged in thick and fast on this base plate and with this base plate heat conduction to be connected.The heat of light emitting diode generation just can be transmitted on the radiating fin by base plate and be dispersed in the ambient air like this.Yet this diode modules is level and adheres on the planar light source that described radiator bottom forms, thereby the single irradiated area of its direction of illumination is limited, all is difficult to make the user satisfied under a lot of situations.

Summary of the invention

In view of this, be necessary the led lamp that provides a kind of lighting area bigger.

A kind of led lamp, comprise a base, be positioned at a top cover, some radiators of base top and adhere on some light emitting diode module on the corresponding radiator, described radiator is located between top cover and the base spaced reciprocally, and described light-emitting diodes pipe die is attached at the radiator medial surface respectively.

Above-mentioned each light emitting diode module is installed in the medial surface of a radiator and goes towards the irradiation of the interval between other second radiator, forming all directions all has the three-dimensional light source of light irradiation, all be illuminated around making led lamp, each light emitting diode module is to be contained in respectively on the isolated radiator simultaneously, can not produce heat and interfere, the integral heat sink effect can be guaranteed.

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 inversion exploded view of led lamp among Fig. 2.

The specific embodiment

Please refer to Fig. 1-3, led lamp in one embodiment of the present invention is used to indoor and more outdoor specific occasions that soft uniform houselights is provided, this led lamp comprises a base 10, at the top cover 20 above the base 10, be erected between top cover 20 and the base 10 respectively three radiators 30, be erected at and also be connected three lampshades 40 of adjacent two radiators 30 respectively between top cover 20 and the base 10 and be attached at three radiators, 30 medial surfaces respectively and towards three light emitting diode module 50 of three lampshades 40 near their corresponding edges.

Above-mentioned base 10 is by metal or integrally moulded, and it comprises a circular substrate 12 and the annular sidewall 14 that extends vertically downward from substrate 12 peripheries.Offer the three-arc shape storage tank 120 of mutual equi-spaced apart on this substrate 12, this storage tank 120 is used for bottom ccontaining and fastening lampshades 40, and it equates near the periphery of substrate 12 and with corresponding nearest periphery distance.This substrate 12 is formed with perforation 122 between adjacent two storage tanks 120, this perforation 122 screws togather for screw 100 bottom-up passing with radiator 30 bottoms.The central authorities of this substrate 12 are provided with a through hole 122, penetrate with light emitting diode module 50 for lead to electrically connect.This annular sidewall 14 can be set on the lamppost (figure does not show), and led lamp is fixed.

Please consult Fig. 3 especially, above-mentioned top cover 20 comprises a circular top plate 22 and an annular fixed frame 24 that extends vertically downward from top board 22.This fixed frame 24 near top board 22 edges and it on any point equal to the distance of base plate 22 corresponding edges recently.These fixed frame 24 bottom surfaces offer three storage tanks, the 120 corresponding three consistent annular space grooves 240 with base 10, and groove 240 is used for the top of holding lampshade 40.Offer fixing hole 242 between corresponding adjacent two grooves 240 of the outer wall of this fixed frame 24, fixing hole 242 screws togather with the screw 200 that passes radiator 30 sides, so that radiator 30 is fixing.

Above-mentioned radiator 30 is integrally formed by heat conductivility good metal material such as aluminium, copper etc., and it comprises a heat-conducting plate 32 and from heat-conducting plate 32 outward extending some radiating fins 34.This heat-conducting plate 32 is roughly rectangular, it highly is substantially equal to top cover 20 to the distance between the base 10, its width is substantially equal to the interval between 10 liang of adjacent storage tanks 120 of base, and the lateral surface of heat-conducting plate 32 is convexly curved, and its medial surface inwardly convexes with an erecting bed 320.All postpone with the corresponding edge of heat-conducting plate 32 in these erecting bed 320 bottoms and both sides, erecting bed 320 end faces are recessed to form a stage portion 324 downwards from heat-conducting plate 32 end faces, and these stage portion 324 end faces are that the heat-conducting plate 32 above the erecting bed 320 then is resisted against this fixed frame 24 outer walls below top cover 20 fixed frames 24 to replace on the plane.This centre position, heat-conducting plate 32 bottom surface offers an installing hole 322, and this installing hole 322 screws togather with the screw 100 that passes base 10 perforation 122.The medial surface of this erecting bed 320 is the plane, is sticked on it for light emitting diode module 50.The middle position of this heat-conducting plate 32 above stage portion 324 offers an open-work 326, is used for screwing togather fixing for the fixing hole 242 that screw 200 passes with top cover 20 fixed frames 24.These erecting bed 320 two relative sides offer a vertical draw-in groove 328 along its long limit respectively, and draw-in groove 328 is used for the side of holding lampshade 40.Radiating fin 34 outwards divergently extends from heat-conducting plate 32 surfaces, and radiating fin 34 is vertically arranged and is parallel to each other at interval along the led lamp axis, and 34 of adjacent two radiating fins are formed with along the vertical gas channel of axis.Offer some interconnections 340 at interval that are parallel to each other on the radiating fin 34, interconnection 340 is perpendicular to radiating fin 34.

Above-mentioned lampshade 40 is the arc surface thin plates that are projected as rectangle, and it can be made by transparent or semitransparent material, as glass, resin etc.These lampshade 20 peripheries can add the flexible glue frame, to strengthen the compactness that lampshade 40 combines with base 10, top cover 20 and radiator 30.

Above-mentioned light emitting diode module 50 comprises that one is attached at the long rectangular circuit board 52 on erecting bed 320 medial surfaces of radiator 30 and is installed on the circuit board 52 and prolongs some light emitting diodes 54 that its length direction is arranged.

When above-mentioned led lamp was assembled, light emitting diode module 50 was located at the medial surface of radiator 30 heat-conducting plates 32 by mode cards such as lock screws; The installing hole 322 of radiator 30 bottoms screws togather and fixes with the screw 100 that passes base 10 perforation 122; The stage portion 324 on radiator 32 tops replaces that the heat-conducting plate 32 above the erecting bed 320 then is resisted against this fixed frame 24 outer walls below top cover 20 fixed frames 24, and the fixing hole 242 of screw 200 open-work 326 that passes radiator 30 heat-conducting plates 32 tops and top cover 20 fixed frames 24 screws togather radiator 30 tops are fixed; Holding is at the groove 240 of top cover 20 fixed frames 24 and lamp socket 10 end faces respectively for the two ends up and down of lampshade 40, and the relative both sides of lampshade 40 are respectively in the draw-in groove 328 of holding in two in opposite directions sides of two adjacent radiators 30.

When above-mentioned led lamp is worked, each light emitting diode module 50 is installed in the medial surface of a radiator 30 and towards a lampshade 40, the lampshade 40 that the light that each light emitting diode module 50 produces sees through in opposite directions goes to the interval irradiation, and illuminate a side of led lamp, forming all directions all has the three-dimensional light source of light irradiation, all be illuminated around making led lamp, increase the irradiated area of led lamp greatly.In addition, the heat that light emitting diode module 50 produces is dispersed in the surrounding air by radiator 30, and the radiating fin 34 of radiator 30 is vertically arranged along the axis of led lamp, form vertical air flow channel between the two adjacent radiating fins 34, these air flow channels and the air-flow free convection direction up and down that rises of being heated is identical, to promote the air-flow circulation and to improve its radiating efficiency.Each light emitting diode module 50 is not contained in isolated radiator 30 and can produce the heat interference simultaneously, and the integral heat sink effect can be guaranteed.

Claims

1. led lamp, comprise a base, be positioned at a top cover, some radiators of base top and adhere on some light emitting diode module on the corresponding radiator, it is characterized in that: described radiator is arranged between top cover and the base, described radiator space and forming a circle jointly, described light emitting diode module are attached at the radiator medial surface respectively and over against the interval between the two adjacent radiators wherein.

2. led lamp as claimed in claim 1 is characterized in that: also comprise the some lampshades that are arranged alternately with described radiator, it is radially relative with a lampshade along led lamp that each is attached at the light emitting diode module of radiator medial surface.

3. led lamp as claimed in claim 1 or 2, it is characterized in that: described radiator comprises a heat-conducting plate and from the outward extending some radiating fins of heat-conducting plate, described heat-conducting plate bottom combines fixing with base top surface, described heat-conducting plate top combines fixing with top cover.

4. led lamp as claimed in claim 3 is characterized in that: described heat-conducting plate and lampshade surround a cylindrical shell of accommodating described light emitting diode module.

5. led lamp as claimed in claim 3 is characterized in that: described base comprises a circular substrate and an annular sidewall that extends vertically downward from substrate edges.

6. led lamp as claimed in claim 5 is characterized in that: described top cover comprises a circular top plate and an annular fixed frame that extends vertically downward from top board.

7. led lamp as claimed in claim 6 is characterized in that: the stage portion of fixed frame bottom surface is replaced in described heat-conducting plate top formation one, and described fixed frame screws togather with the screw that passes the heat-conducting plate of stage portion upper section the radiator top is fixed.

8. led lamp as claimed in claim 6 is characterized in that: described heat-conducting plate outer surface is a circular arc, and its inner surface is the plane and the described light emitting diode module that is sticked.

9. led lamp as claimed in claim 8 is characterized in that: described radiating fin outwards divergently extends from the heat-conducting plate outer surface, is formed with gas channel between parallel interval extension vertically of described radiating fin and adjacent two radiating fins.

10. led lamp as claimed in claim 9, it is characterized in that: described base top surface correspondence offers the circular arc storage tank of the space of blocking lampshade bottom, described top cover fixed frame bottom surface offers the circular groove of the space on blocking lampshade top, and the holding of lampshade bottom is in storage tank.

11. led lamp as claimed in claim 10 is characterized in that: described radiator heat-conducting plate both sides offer vertical draw-in groove, and the difference holding of lampshade both sides is in adjacent two radiators draw-in groove in opposite directions.