TWI399505B - Led lamp - Google Patents

Description

Light-emitting diode lamp

The invention relates to a light-emitting diode lamp, in particular to a light-emitting diode lamp for outdoor lighting.

As a new generation of light source, the light-emitting diode light source can not replace the traditional incandescent lamp on a large scale, but it has the advantages of long working life, energy saving and environmental protection, and is generally favored by the market. Moreover, the module composed of the light-emitting diode can generate a high-power, high-brightness light source, and thus will widely and revolutionarily replace the existing light source such as a conventional incandescent lamp, thereby becoming a main light source that meets the theme of energy conservation and environmental protection.

However, as the power and brightness of the light-emitting diode or its module increase, the amount of heat generated is also increased. If the heat generation problem of the light-emitting diode is not properly solved, the operation of the light-emitting diode lamp Life expectancy will be severely affected. Therefore, a heat sink is generally disposed on the light emitting diode module to dissipate heat therefrom. The heat sink has a plurality of heat sink fins formed on the bottom plate and the bottom plate. For some high-power lamps, the light-emitting diodes are generally densely arranged on the bottom plate and thermally connected to the bottom plate. Therefore, the heat generated by the light-emitting diode can be radiated to the surrounding air through the bottom plate and radiated to the surrounding fins. However, the diode module is a planar light source horizontally placed on the bottom of the heat sink, and the illumination thereof The direction is single and the irradiation area is limited, and in many cases, it is difficult to satisfy the user.

In view of this, it is necessary to provide a light-emitting diode lamp with a large illumination area.

A light-emitting diode lamp comprising a heat sink and a plurality of light-emitting diode modules attached to the heat sink, the heat sink comprising a heat-conducting tube, a plurality of heat-conducting support plates extending outward from a periphery of the heat-conducting tube, and formed on a plurality of heat radiating fins on both sides of the heat conducting support plate, each of the heat conducting support plates is a right triangle, and the right angle sides of the heat conducting support plates are engaged with the periphery of the heat conducting tube, so as to be inclined from the top to the bottom of the heat conducting support plate by the top of the heat conducting support plate The mounting top surface, the LED modules are respectively attached to the mounting top surface.

The light-emitting diode modules are respectively mounted on the top surface of the radiator mounted on the inclined surface, and the light generated by the light-emitting diode module uniformly illuminates in various directions of the light-emitting diode lamp and is due to the light-emitting diode module They are all inclined to the periphery to form a wide and uniform illumination area around the LED luminaire.

10‧‧‧Base

12‧‧‧Substrate

14‧‧‧Fixed Edge

140‧‧‧ screw holes

16‧‧‧Fins

18‧‧‧容筒

180‧‧‧ accommodating space

19‧‧‧Fixed column

190‧‧‧With holes

20‧‧‧Installation

22‧‧‧Installation

24‧‧‧Installation board

240‧‧‧through hole

242‧‧‧Perforation

30‧‧‧ radiator

32‧‧‧thermal tube

320‧‧‧through hole

34‧‧‧heat conduction support

340‧‧‧Installation top surface

342‧‧‧ Heat sink

40‧‧‧Lighting diode module

42‧‧‧ boards

44‧‧‧Lighting diode

50‧‧‧shade

52‧‧‧Combined edge

520‧‧‧bond hole

1 is an exploded perspective view of a preferred embodiment of a light-emitting diode lamp of the present invention.

2 is a perspective assembled view of the light-emitting diode lamp of FIG. 1.

Figure 3 is an inverted view of Figure 1.

Figure 4 is an inverted view of Figure 2.

Referring to FIG. 1-4, a light-emitting diode lamp according to a preferred embodiment of the present invention is used to provide soft and uniform illumination for certain occasions indoors and outdoors. The light-emitting diode lamp includes a base 10, and A mounting member 20 is attached to the bottom of the base 10, a heat sink 30 mounted on the top surface of the base 10, a plurality of LED modules 40 attached to the heat sink 30, and the base 10 is coupled to the heat sink 30 and the light emitting unit The pole body module 40 is covered by a light transmissive lamp cover 50 therein.

The base 10 is made of a heat conductive metal material, and includes a circular substrate 12, an annular fixing edge 14 projecting vertically upward from the periphery of the substrate 12, and a receiving cylinder 18 vertically extending from the bottom surface of the bottom surface of the substrate 12. The fins 16 are disposed on the bottom surface of the substrate 12 and extend radially outward from the periphery of the receiving cylinder 18. A plurality of screw holes 140 are uniformly formed in the top of the fixing edge 14 for engaging with screws (not shown) passing through the lamp cover 50. An accommodating space 180 is formed in the accommodating cylinder 18 to accommodate electronic components such as an electronic rectifier and a control circuit. The outer periphery of the accommodating cylinder 18 is provided with three fixing posts 19 perpendicularly connecting the top surfaces of the substrate 12, the fixing posts 19 are symmetrically disposed about the central axis of the accommodating cylinder 18, and the fixing post 19 is provided with a connecting member 20 for connecting the mounting member 20 Fit the hole 190.

The mounting member 20 includes a circular mounting plate 24 and a mounting barrel 22 extending vertically downward from a central portion of the bottom surface of the mounting plate 24. The diameter of the mounting plate 24 is slightly larger than the outer diameter of the accommodating cylinder 18 of the base 10 to completely cover the bottom end opening of the accommodating cylinder 18, and a through hole 240 through which the wire passes is installed in the middle of the mounting plate 24, and is installed. The plate 24 is uniformly provided with a plurality of perforations 242 near its circumference. The through hole 242 is fitted with a fixing member (not shown) through the mating hole 190 of the fixing post 19 of the base 10 to The mounting member 20 is attached and fixed to the bottom of the base 10. The mounting cylinder 22 can directly mount an external light pole (not shown) to mount the LED luminaire to a predetermined position.

The heat sink 30 is integrally formed of a metal material having good thermal conductivity, such as aluminum, copper, etc., and includes a heat conducting tube 32, a plurality of heat conducting support plates 34 extending outward from the outer periphery of the heat conducting tube 32, and formed on both sides of the heat conducting support plate 34. The plurality of heat sinks 342. The heat conducting tube 32 is a polygonal prism. In different embodiments, it may be a triangular prism, a quadrangular prism or an octagonal prism. In the embodiment, the heat conducting tube 32 is a hexagonal prism, and the heat conducting tube 32 is opened at the center. A circular through hole 320 penetrating up and down along the central axis of the hexagonal prism. The heat conducting support plate 34 extends perpendicularly outward from the hexagonal cylindrical surface of the heat conducting tube 32. Each of the heat conducting support plates 34 has a right angle triangle shape, and the right angle side of the heat conducting support plate 34 is engaged with the hexagonal cylindrical surface of the heat conducting tube 32, thereby The heat-dissipating support plate 34 forms a mounting top surface 340 which is inclined upwardly and downwardly around the heat-conducting tube 32, and the mounting top surface 340 is used for attaching and mounting the corresponding light-emitting diode module 40, and each of the mounting top surfaces 340 is at the same angle as the wall of the heat conducting tube 32 to which it is attached. The fins 342 are vertically extended from both sides of the heat conducting support plate 34 and are symmetric with respect to the heat conducting support plate 34. The fins 342 are spaced apart from each other and are parallel to the prism surface corresponding to one of the heat conducting tubes 32. The height of the heat sink 340 is outwardly decreased by the heat conducting tube 32, and the top surface of the heat sink 342 is inclined and corresponding thereto. The mounting top surface 340 of the heat conducting support plate 34 is coplanar so that the heat sink 30 as a whole has a hexagonal prism shape. The bottom of the heat sink 30 has a small bottom, and the bottom surface of all the heat sinks 342 of the heat sink 30 and the bottom surface of the heat transfer support plate 34 are coplanar to be placed on the top surface of the base 12 of the base 10 and are advantageously at the fixed edge 14 of the base 10. Surrounded by it.

The LED module 40 includes a vertically long rectangular circuit board 42 and a plurality of LEDs 44 mounted on the circuit board 42 and extending in the longitudinal direction thereof. One side of the circuit board 42 is attached to the mounting top surface 340 of the heat sink 30, and the light emitting diode 44 is mounted on the other side of the circuit board 42.

The lamp cover 50 is made of a transparent or translucent material such as glass, resin or the like, and has a truncated cone shape which is open at the lower end. The peripheral edge of the bottom end of the lamp cover 50 extends horizontally outward to form an annular joint edge 52. The connecting edge 52 is equal in size to the fixing edge 14 of the base 10, so that the engaging edge 52 is just engaged with the fixing edge 14. The connecting edge 52 is provided with a plurality of coupling holes 520 for the screws to pass through the coupling hole. The 520 cooperates with the screw hole 140 on the fixing edge 14 to fix the lamp cover 50 to the base 10, and seals the heat sink 30 and the LED module 40 therein.

When the above-mentioned light-emitting diode lamp is in operation, the light-emitting diode modules 40 are respectively mounted on the top surface 340 of the heat sink 30 which is inclined to face all around, and the light generated by the light-emitting diode module 50 uniformly illuminates the light-emitting diode. In all directions of the luminaire, and because the illuminating diode module 50 is inclined to face all around, a wide and uniform illumination area is formed around the illuminating diode lamp. In addition, the heat generated by the operation of the LED module 40 can be directly absorbed by the heat transfer plate 34 and dissipated by the heat sink 342 and the fins 16 of the base 10.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.

10‧‧‧Base

50‧‧‧shade

Claims (10)

A light-emitting diode lamp comprising a heat sink and a plurality of light-emitting diode modules attached to the heat sink, the heat sink comprising a heat-conducting tube, a plurality of heat-conducting support plates extending outward from a periphery of the heat-conducting tube, and formed on The heat sinks on both sides of the heat-conducting support plate are improved in that each heat-conducting support plate has a right-angled triangle shape, and the right-angled sides of the heat-conducting support plates are joined to the periphery of the heat-conducting tube so as to be formed by the top of the heat-conducting support plate around the heat-conducting tube The top surface is tilted up and down, and the light emitting diode modules are respectively attached to the mounting top surface. The light-emitting diode lamp of claim 1, wherein the heat-conducting cylinder is a polygonal prism, and each of the heat-conducting support plates extends from a polygonal prism surface. The light-emitting diode lamp of claim 1 or 2, wherein the heat-conducting cylinder is a hexagonal cylinder, and a through hole is formed in the inner axis thereof, and each of the heat-conducting support plates is perpendicular to a hexagonal prism surface. Extend out. The illuminating diode lamp according to claim 1 or 2, wherein the height of the heat sink on each of the heat conducting plates is gradually decreased outward from the heat conducting tube, and the top surface of the heat sink is coplanar with the mounting top surface. Inclined surface. The illuminating diode lamp of claim 4, wherein the heat dissipating fins are perpendicular to the heat conducting struts and are symmetrical about the corresponding heat conducting struts, and the heat conducting struts and the heat sinks are centered on the central axis of the heat conducting cylinder symmetry. The illuminating diode lamp of claim 1, wherein each mounting top surface has the same angle as the wall of the heat conducting tube to which it is attached. The illuminating diode lamp according to claim 1 or 2, further comprising a a base comprising a circular substrate and an annular fixing edge projecting vertically upward from the periphery of the substrate, wherein all the heat sinks and the bottom surface of the heat conducting support are coplanar to be placed on the top surface of the substrate and fixed Surrounded by the edge. The illuminating diode lamp of claim 7, wherein the pedestal further comprises a receiving cylinder extending vertically downward from a central portion of the bottom surface of the substrate and vertically disposed on the bottom surface of the substrate and radiating outward from the periphery of the accommodating cylinder. Extending the fins. The illuminating diode lamp of claim 8, further comprising a mounting member, the mounting member comprising a mounting plate covering the bottom end of the accommodating cylinder and extending downward from a central portion of the bottom surface of the mounting plate Install the cartridge. The illuminating diode lamp of claim 7, further comprising a lampshade, the lampshade being made of a transparent or translucent material, in the shape of a truncated cone having a lower end opening, the periphery of the bottom end of the lampshade extending horizontally outward A bonding edge is formed that engages the fixed edge of the base.