TWI390156B - Led lamp - Google Patents

Description

Light-emitting diode lamp

The invention relates to a lighting device, in particular to a light emitting diode lamp.

As a new generation of light source, the light-emitting diode has the advantages of energy saving, environmental protection and long life, so it has been widely used and rapidly developed in the field of lighting. The market of light-emitting diode lamps is forming and rising. Traditional light sources such as incandescent lamps and fluorescent lamps will be widely and revolutionarily replaced.

In order to dissipate the heat generated by the light-emitting diodes in time to maintain the normal operating temperature, the plurality of light-emitting diodes are usually placed on a heat sink to form a light-emitting diode module having a heat-dissipating structure. The modules are applied to different lighting fixtures according to actual needs. The conventional LED module includes a flat heat sink and a plurality of light emitting diodes mounted on one side of the heat sink. When the light emitting diode is illuminated, the heat generated by it is dissipated into the surrounding air via the heat sink. The light-emitting diodes are linearly and evenly arranged, and since the light-emitting diode system emits light on one side, the illumination angle and range of the light-emitting diode module are extremely limited by the type of the light-emitting diode used, and the illumination range is It is narrow and the lighting effect is not good.

In view of this, it is necessary to provide a light-emitting diode lamp having a wide illumination range.

A light-emitting diode lamp includes a heat sink, a plurality of light-emitting diode modules attached to the heat sink, and two light-emitting diodes, and the light-emitting diode module The two lamp covers are mounted on opposite sides of the heat sink, and the two light-emitting diodes are mounted on the two sides of the heat sink and the light-emitting diode module is disposed therein.

Compared with the prior art, the heat sink is disposed on the opposite sides of the heat sink, and the light emitting diode module is irradiated in different directions, thereby illuminating the diode module. The angle and scope have been expanded.

Referring to FIG. 1 and FIG. 2 simultaneously, the LED lamp of the preferred embodiment of the present invention can be used as a wall lamp, and is widely applicable to illumination and decoration of scenes such as corridors, eaves, balconies, and attic, including a heat dissipation. 10, a plurality of LED modules 20 respectively attached to the two sides of the heat sink 10, a mounting box 30 connected to the heat sink 10, respectively located on both sides of the heat sink 10 and the LED module 20 Two lampshades 40 are disposed in the housing and a mounting bracket 30 is attached to mount the light-emitting diode lamp to a mounting bracket 50 on a surface of a wall or the like.

The heat sink 10 is integrally formed of a material such as metal copper or aluminum, and is used for dissipating heat generated by the light emitting diode module 20 attached to both sides thereof. The heat sink 10 includes a columnar heat conductor 12 having an isosceles trapezoidal cross section and a plurality of fins 14 extending radially outward from the heat conductor 12. The heat conductor 12 has an outer side surface (not shown), an inner side surface 122 parallel to the outer side surface and larger than the outer side surface, and an opposite side surface 124 of the oblique connecting inner side surface 122 and the outer side surface. The inner side surface 122 is attached to the mounting box 30, and two spaced screw holes 1220 are formed in the middle portion to cooperate with two screws (not shown) passing through the mounting box 30. The two opposite sides 124 of the heat conductor 12 are respectively attached to the pair of LED modules 20 and are on the two sides of the heat conductor 12 Four screw holes 1240 arranged in a line are arranged at the central position of the surface 124 to cooperate with the screws passing through the LED module 20. The fins 14 are spaced apart from each other, and a plurality of air flow passages 142 are formed between the adjacent fins 14 for the airflow around the fins 14 to pass the heat on the fins 14. Since the fins 14 extend radially outward, the air flow passages 142 gradually increase in width in the direction in which the fins 14 extend outward.

The LED modules 20 are respectively disposed on opposite sides 124 of the heat conductor 12 of the heat sink 10 . Each LED module 20 includes a rectangular circuit board 22 and four LEDs 24 mounted on the circuit board 22. The light-emitting diodes 24 are distributed along the line and spaced apart from each other on the circuit board 22. Each circuit board 22 is provided with a two-way hole 220 corresponding to the screw hole 1240 of the side surface 124 of the heat conductor 12 for screwing. Assume. The LED module 20 can be firstly attached to the opposite side 124 of the heat conductor 12 of the heat sink 10 by brushing a heat conductive medium (not shown) on the back surface of the circuit board 22, and then threaded through the screw. The through holes 220 of each of the circuit boards 22 are locked with the screw holes 1240 of the side surface 124 of the heat conductor 12 to lock the groups of the light emitting diode modules 20 to the opposite sides of the heat conductor 12 of the heat sink 10. On the side 124.

The mounting box 30 is a regular rectangular parallelepiped structure which is surrounded by five faces and has a side facing away from the opening of the heat sink 10. The mounting box 30 has two horizontal plates 32 respectively disposed on the lower side of the mounting box 30, two side plates 34 vertically connecting the two side edges of the two horizontal plates 32, and one back plate 36 vertically connecting the two horizontal plates 32 and the two side plates 34. The back plate 36 of the mounting box 30 is in contact with the inner side surface 122 of the heat conductor 12 of the heat sink 10. The five sides of the mounting box 30 are provided with an accommodating space (not shown) for accommodating electronic components such as rectifiers. Not shown). The back plate 36 of the mounting box 30 is provided with two mounting holes 360 corresponding to the screw holes 1220 of the inner side surface 122 of the heat sink 10 for the two screws to be pierced. The two horizontal plates 32 of the mounting box 30 respectively have a screw hole 320 at each end for screwing. The two horizontal plates 32 of the mounting box 30 respectively define a circular fixing hole 322 in the center for screwing the mounting box 30 to the fixing frame 50. The two side plates 34 of the mounting box 30 respectively define a circular through hole 340 at a central position for the wires (not shown) connected to the LED module 20 to pass through the through holes 340 and the mounting box 30. Electronic components such as rectifiers are connected.

The two lampshades 40 are respectively mounted on two sides of the heat sink 10. Each of the lampshades 40 is surrounded by four faces, which are respectively substantially fan-shaped, a lower horizontal plane 42, and a curved edge connecting the upper and lower horizontal planes 42. The light-emitting surface 46 having a circular arc shape and a rectangular supporting surface 48 connected to the other three sides. The upper and lower horizontal planes 42 are respectively flush with the upper and lower end faces of the heat sink 10 and respectively protrude from the lamp body with a rectangular fixing end 422, respectively, and are respectively opened at positions where the upper and lower horizontal planes 42 are close to the fixed end 422. The two horizontal plates 32 of the mounting box 30 have a through hole 420 corresponding to one of the through holes 420 for screwing. A semicircular notch 424 is defined at a midpoint of one end edge of the fixed end 422. The support surface 48 is supported between the upper and lower horizontal planes 42 to prevent deformation of the upper and lower horizontal planes 42.

The fixing frame 50 is formed by bending a plate body 90 degrees along one side thereof at one side, and comprises a rectangular plate-shaped mounting plate 52 and two fixed ends 54 perpendicular to the mounting plate 52. Two elliptical transverse holes 520 and two elliptical vertical holes 522 are alternately arranged at a central position of the mounting plate 52. The long axis of the two elliptical transverse holes 520 is perpendicular to the longitudinal direction of the mounting plate 52, and the two elliptical vertical holes 522 are The long axis coincides with the length direction of the mounting plate 52, and the fixing frame 50 is passed through the steel. When the nail (not shown) is fixed on the wall (not shown), the fixing frame 50 can be prevented from moving up and down and left and right along the wall surface for better positioning. A screw hole 540 corresponding to the fixing hole 322 of the two horizontal plates 32 of the mounting box 30 is opened at a central position of the two fixed ends 54 for screwing.

Referring to FIG. 3 together, when the LED device is in an assembled state, the LED module 20 is fused by a screw passing through the through hole 220 and the screw hole 1240 of the heat conductor 12 of the heat sink 10. The diode module 20 is attached to the two side faces 124 of the heat conductor 12; the back plate 36 of the mounting box 30 is attached to the inner side surface 122 of the heat conductor 12 of the heat sink 10 and passes through the mounting hole of the back plate 36 by screws. 360 is screwed into the screw hole 360 of the inner side surface 122 of the heat conductor 12; the two fixed ends 54 of the fixing frame 50 are respectively disposed on the surface of the two horizontal plates 32 inside the mounting box 30; the supporting surfaces 48 of the two lamp covers 40 are respectively attached to The surface of the outermost fin 14 of the heat sink 10 and the fixing end 422 of the upper and lower horizontal surfaces 42 of the lamp cover 40 sandwich the two horizontal plates 32 of the mounting box 30, and the rectangular shape of the upper and lower horizontal planes 42 of the two lampshades 40 The semicircular recesses 424 of the connecting ends 422 are respectively butted together, and the through holes 420 are screwed into the screw holes 320 of the two horizontal plates 32 of the mounting box 30 to lock the lamp cover 40 on the mounting box 30. And the screw also passes through the perforation formed by the two notches 424 of the upper and lower horizontal planes 42 of the lampshade 40 and the installation of the water The intermediate plate 32 of the bracket 322 and the fixing hole 50 of the two fixing screw holes 54 and the mounting mating end 540 engaged with a bracket 30 secured together 50. The upper and lower horizontal planes 42 of the two lampshades 40 are respectively spliced into a semi-circular cross section with the edges of the upper and lower end faces of the heat sink 10, so that the heat sink 10 and the two lampshades 40 form a semi-cylindrical structure. Each of the support surfaces 48 and the two outermost heat dissipation fins 14 of the heat sink 10 Surface contact can effectively prevent debris from entering.

It can be understood that the column formed by the splicing of the two lampshade 40 and the heat sink 10 of the light-emitting diode lamp of the present invention is not limited to a semi-circular shape, and can be changed into a geometric structure of any regular shape such as a triangle or a square according to different requirements.

Compared with the prior art, the heat sink is disposed on the opposite sides of the heat sink, and the light emitting diode module is irradiated in different directions, thereby illuminating the diode module. The angle and scope have been expanded.

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‧‧‧ radiator

12‧‧‧ Thermal Conductor

14‧‧‧Fins

142‧‧‧Air passage

122‧‧‧ inside side

124‧‧‧ opposite sides

20‧‧‧Lighting diode module

22‧‧‧ Circuit board

24‧‧‧Lighting diode

30‧‧‧Installation box

32‧‧‧ horizontal board

34‧‧‧ side panels

36‧‧‧ Backboard

360‧‧‧ mounting holes

322‧‧‧Fixed holes

220, 340‧‧‧through holes

40‧‧‧shade

42‧‧‧Upper and lower levels

420‧‧‧through hole

46‧‧‧Glossy

48‧‧‧Support surface

422‧‧‧ fixed end

424‧‧‧ Notch

50‧‧‧ Fixing frame

52‧‧‧Installation board

54‧‧‧ fixed end

520‧‧‧ transverse holes

522‧‧‧Vertical holes

1220, 1240, 320, 540‧‧‧ screw holes

1 is a perspective assembled view of a light-emitting diode lamp according to an embodiment of the present invention.

2 is an exploded perspective view of FIG. 1.

Figure 3 is a plan view of Figure 1.

10‧‧‧ radiator

20‧‧‧Lighting diode module

30‧‧‧Installation box

40‧‧‧shade

50‧‧‧ Fixing frame

Claims (10)

A light-emitting diode lamp comprising a heat sink and a plurality of light-emitting diode modules mounted on the heat sink, wherein the improvement comprises: a two-light cover, wherein the light-emitting diode module is attached to the heat sink The two side covers are mounted on the two sides of the heat sink and the light emitting diode module is disposed therein. The heat sink comprises a columnar heat conductor and a plurality of fins extending outwardly along an outer side of the heat conductor. The light emitting diode module is disposed on opposite sides of the heat conductor, and the fins are arranged between the light emitting diode modules on both sides. The illuminating diode lamp of claim 1, wherein the two lampshades are symmetrically located on both sides of the heat sink and are spliced into a cylinder having a semi-circular cross section. The illuminating diode lamp of claim 1, wherein the two lampshades are symmetrically located on both sides of the heat sink and are spliced into a cylinder having a triangular cross section. The illuminating diode lamp of the first aspect of the invention, further comprising a mounting box mounted on the heat sink, the mounting box being mounted on an inner side opposite to the outer side of the heat conducting body. The illuminating diode lamp of claim 4, wherein two opposite sides of the LED module are slanted to the outer side and the inner side of the heat conductor so that the cross section of the heat conductor is equal The waist trapezoid, the fin extends radially outward from the outer side of the heat conductive body. The illuminating diode lamp of claim 4, wherein each of the lamp covers comprises a horizontal plane connecting the upper and lower ends of the heat conductor of the heat sink, a light emitting surface connecting the edges of the water level, and a connection of the other three sides and being attached to the heat sink. The support surface of the outer side of the outermost fin. The light-emitting diode lamp of claim 6, wherein the light-emitting surface of the lamp cover and the outer surface of the fin have a convex curved surface. The illuminating diode lamp of the seventh aspect of the invention, wherein the two horizontal planes of the lampshade are respectively attached to the upper end surface and the lower end surface of the mounting box, and are closely engaged with the heat sink and the upper and lower end faces of the heat sink. Qi Ping. The illuminating diode lamp of claim 4, wherein the mounting box is a rectangular parallelepiped structure comprising two horizontal plates parallel to each other, two side plates perpendicularly connected to opposite side edges of the two horizontal plates, and a vertical connection. The two horizontal plates and one of the two side plates are attached to the inner side of the heat conductor of the heat sink through the back plate. The illuminating diode lamp of claim 9, further comprising a fixing frame, the fixing frame comprising a mounting plate and a fixed end extending from the two ends of the mounting plate and respectively connected to the horizontal plate of the mounting box .