CN201521877U

CN201521877U - High-power LED pendant lamp

Info

Publication number: CN201521877U
Application number: CN2009202413925U
Authority: CN
Inventors: 诸建平
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-16
Filing date: 2009-11-16
Publication date: 2010-07-07
Anticipated expiration: 2019-11-16

Abstract

A high-power LED pendant lamp comprises a heat dissipation body, a PC transparent lamp shade, a high-power LED, a plastic side cover and the like, wherein the heat dissipation body comprises two or more radiators, cavities are respectively arranged at two side ends of each radiator, and grooves are formed among the cavities. The high-power LED pendant lamp has the advantages of good heat dissipation effect, simple structure and convenient manufacture, and is suitable for large-scale assembly and production.

Description

A kind of high-power LED ceiling lamp

Technical field

The utility model relates to a kind of illuminator lamp, and particularly a kind of employing great power LED has the pendent lamp of excellent heat dispersion performance as light source.

Background technology

Light emitting diode (LED) as internationally recognized the 4th generation green illumination light source, have distinct advantages such as energy-saving and environmental protection, long service life, be widely used in fields such as traffic demonstration, display screen, architectural lighting, special lighting.LED can be divided into low-power LED and great power LED according to watt level, and wherein, traditional low-power LED has begun to apply on a large scale because technology is popularized, heat radiation and optical treatment is simple, technical maturity.Great power LED has very big difference with respect to low-power LED on packaging technology and material.Because input power reaches more than the W level, the electric energy of the overwhelming majority has converted heat energy to, if heat can not get effectively distributing, will cause the joint temperature rise of chip internal so, and the LED luminous efficiency descends, and causes optical attenuation, even whole LED was lost efficacy.Therefore, in the application process of great power LED, it is most important that the problem of heat radiation just seems.Simultaneously, the high-power LED light source orientation is luminous, has directionality, and 360 degree that are different from conventional light source are luminous, and therefore distribution curve flux, the illumination design to light source also has different requirements.

In the patent No. is 200710027030.1 angle-adjustable high-power LED ceiling lamp patent, comprise an overhead bin, this overhead bin is fixed on the ceiling; One lamp bracket body, the lamp body that be provided with support baffle plate, the support ring that is connected with the support baffle plate in this lamp bracket body, is connected with support ring; And the lamp bracket body is suspended on lamp bracket messenger wire on the overhead bin; Wherein, described lamp body is articulated on the support ring; Described support ring is articulated on the support baffle plate.Because between this utility model lamp holder and the support ring, between support ring and the lamp bracket, all adopt hinged mode to be connected to each other, thereby make lamp holder in support ring, to need randomly regulating irradiation angle by the user, also can only adjust the angle of support ring, can reach required irradiating angle effect equally, and can regulate the arbitrarily angled of lamp holder and support ring simultaneously, realize the required light effect that goes out; And, be provided with the contiguous block that can rotate along certain radian, thereby give the part that brings great convenience in the use of this this lamp in the junction of lamp bracket messenger wire and lamp bracket.

But, strict requirement, complex manufacturing technology are all arranged for the heat radiation of each lamp body, degree of protection etc. because absolute construction is adopted in the heat radiation of the lamp body of this patent.In heat radiation, the area of dissipation deficiency of light fixture is difficult to satisfy the needs that dispel the heat, and causes the light decay of light fixture easily.

Summary of the invention

At above-mentioned deficiency, the utility model provides a kind of high-power LED ceiling lamp, includes radiator, PC Transparent lamp shade, great power LED, plastics side cover etc.Described radiator is made of two or more radiators, and the both side ends of radiator is provided with cavity respectively, is a groove between the cavity;

Described radiator contains the radiator of two contract fonts at least, is positioned at the outside of radiator;

Mate mutually by T type groove and T type projection respectively between the radiator, each radiator is closely linked together.

Described cavity vertical cross-section shape is similar to triangle;

Described radiator groove vertical cross-section shape is similar to parabolic shape;

Described is a horizontal plane at bottom portion of groove, and base plane is provided with more than one projection;

Described protruding top is higher than the vertical plane that protrudes in projection;

Described great power LED is fixed between the projection on radiator bottom portion of groove plane.

LED radiator in the utility model, form by a plurality of radiators, connect by modes such as buckles, the fixing contract font radiator in the outer end of radiator, the exiting surface outward appearance of radiator forms a curved surface, not only make the overall appearance of light fixture more good-looking, and make the lighting angle of light fixture and luminous intensity distribution more reasonable.

The similar triangular pockets structure of radiator not only can play stable effect to cavity shape, and when enlarging area of dissipation, has greatly alleviated the weight of radiator.Projection in the radiator groove, in the process of fixing great power LED, what make that LED can be more prone to is fixed in the projection simplification installation procedure and technology.

Radiator adopts the direct extrusion modling of aluminium extrusion technology, and technology is simple, and is cheap, can effectively control the price of product.

The beneficial effects of the utility model: good heat dissipation effect, simple in structure, easy to process, be convenient to extensive assembling and production.

Description of drawings

Fig. 1 is the schematic perspective view of a kind of preferred embodiment of the present utility model.

Fig. 2 is the generalized section of radiator in a kind of preferred embodiment of the present utility model.

Fig. 3 is the perspective exploded view of a kind of preferred embodiment of the present utility model.

Fig. 4 is the perspective exploded view of another kind of preferred embodiment of the present utility model.

Label declaration:

Lampshade-1 led light source module-2 radiator-3

First radiator-4, second radiator-5 the 3rd radiator-6

Cavity-7 groove-8 positioning convex-9

T type groove-10 T type projection-11 end cap-12

Heat radiation fluting-13

The specific embodiment

As shown in Figure 1, the utility model embodiment outward appearance is a flat cuboid, and the outward appearance part partly is made up of lampshade 1, radiator 3, end cap 12 etc.Light fixture is mainly based on radiator 3, and lampshade 1 is fixed on the surface of radiator 3, and end cap 12 is fixed on the two ends of radiator 3, makes radiator 3, lampshade 1 and end cap 12 3 parts constitute an overall appearance.

End cap 12 can pass through modes such as screw, buckle, and lampshade 1 and radiator 3 are linked together.End cap 12 is provided with numerous heat radiation flutings 13, and it is different, can design according to different needs.The position of heat radiation fluting 13 on end cap 12, then corresponding with the cavity in the radiator 3, so that form cross-ventilation, help heat radiation.

Lampshade 1 can be plastics or glass material making such as acrylic, PC, the surface forms transparent, translucent or frosted shape, or is made into different striated projectioies on lampshade 1 surface, prevents the light fixture dazzle, improve the outgoing light homogeneity of light fixture, adapt to different bright dippings and illumination needs.

Fig. 2 is the sectional view of the utility model embodiment radiator 3.In the drawings, we can see that radiator 3 partly is made up of first radiator 4, second radiator 5 and the 3rd radiator 6 etc., but require also can be made of two or more radiators according to last heat radiation.Mate mutually by T type groove 10 and T type projection 11 respectively between each radiator, first radiator 4, second radiator 5 and the 3rd radiator 6 are closely linked together.This kind method can be directly by one-body molded owing in the process of making by extrusion process at radiator, and technology is simple, and is with low cost.

First radiator 4, second radiator 5 and the 3rd radiator 6 have similar structure, are example with first radiator 4.The both side ends of first radiator 4 is provided with two cavitys 7 respectively, and cavity 7 cross sectional shapes are similar to triangle, and its size and Orientation can be adjusted according to actual needs.

Be provided with a groove 8 between two cavitys 7 of first radiator 4, groove 8 vertical cross-section shapes are similar to parabolic shape, and the surface of groove 8 is a burnishing surface, or is provided with reflector layer, can effectively improve the light extraction efficiency of light.The bottom of groove 8 is a horizontal plane, or certain inclination is arranged, and base plane is provided with more than one fixed lobe 9, and fixed lobe 9 tops are higher than the vertical plane that protrudes in fixed lobe 9, so that high-power LED module is fixed between the fixed lobe 9, install and fix.

Radiator 3 generally contains the radiator of two contract fonts at least, is positioned at the outside of radiator 3, as first radiator 4 and the 3rd radiator 6, makes the edge formation curved surface of radiator 3 excessive.Second radiator 5 is a square structure between first radiator 4 and the 3rd radiator 6, and its quantity can be adjusted as required to be increased or reduce, or directly is made up of first radiator 4 and the 3rd radiator 6.Mate mutually by T type groove 10 and T type projection 1 between each radiator, connect as one.

Fig. 3 is the STRUCTURE DECOMPOSITION figure of the utility model embodiment.We can know in the drawings, and present embodiment is made up of lampshade 1, led light source module 2, first radiator 4, second radiator 5, the 3rd radiator 6 and lid end 12 etc.Wherein, led light source module 2 can be multicore integrated optical source, also we can say with single-chip LED to be formed by connecting, and single-chip LED can be great power LED or the low-power LED that various encapsulation form.Led light source module 2 is fixed between the fixed groove 9 of radiator 3, first radiator 4 and second radiator, 5 bottoms, and led light source module 2 heats pass to each radiator fast, dispel the heat.Spreader surface can be made various striated projectioies or surface irregularity, to increase area of dissipation, improves radiating effect.

Lampshade 1 correspondence respectively is fixed on first radiator 4, second radiator 5 and the 3rd radiator 6, with effect and the light modulation effect of playing protection.Lid end 12 is fixed on radiator 3 two ends that first radiator 4, second radiator 5 and the 3rd radiator 6 are formed, and makes the light fixture each several part form tight one.

Fig. 4 is an another kind of preferred embodiment of the present utility model, and in this embodiment, first radiator 4 is to be made of second radiator 5 and the 3rd radiator 6, can reduce the overall volume and the weight of light fixture, adapts to the heat radiation needs of different capacity LED.With respect to Fig. 3 in, the minimizing of second radiator 5, then corresponding lampshade 1, lid end 12 change, to realize the sealed whole effect.

Above embodiment is a preferred version of the present utility model, but is not limited to above scheme.The simple change of any format surface and structure is all in the protection domain of this patent.

Claims

1. high-power LED ceiling lamp, include radiator, PC Transparent lamp shade, great power LED, plastics side cover etc., it is characterized in that: described radiator is made of two or more radiators, and the both side ends of radiator is provided with cavity respectively, is a groove between the cavity.

2. a kind of high-power LED ceiling lamp according to claim 1 is characterized in that: described radiator contains the radiator of two contract fonts at least, is positioned at the outside of radiator.

3. a kind of high-power LED ceiling lamp according to claim 1 and 2 is characterized in that: mate mutually by T type groove and T type projection respectively between the radiator, each radiator is closely linked together.

4. a kind of high-power LED ceiling lamp according to claim 3 is characterized in that: described cavity cross section shape is the class triangle.

5. a kind of high-power LED ceiling lamp according to claim 4 is characterized in that: described radiator groove cross sectional shape is the class parabolic shape.

6. a kind of high-power LED ceiling lamp according to claim 5 is characterized in that: described is a horizontal plane at bottom portion of groove, and base plane is provided with more than one fixed lobe.

7. a kind of high-power LED ceiling lamp according to claim 6 is characterized in that: described fixed lobe top is higher than the vertical plane that protrudes in projection.

8. according to claim 6 or 7 described a kind of high-power LED ceiling lamps, it is characterized in that: described great power LED is fixed between the fixed lobe on radiator bottom portion of groove plane.