TWI420040B - Led lamp assembly - 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 light source has many characteristics such as long working life, environmental protection, power saving and long life. 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 conventional 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 LED or its module increase, the amount of heat generated is also increased. If the heating problem of the LED is not solved in time, the operation of the LED lamp is completed. Life expectancy will be severely affected. Therefore, the industry usually installs a heat sink on the light emitting diode module to dissipate heat, and the light emitting diode module is horizontally placed on the bottom of the heat sink to become a planar light source. Due to the single illumination direction of the planar light source, the illumination area of the luminaire is limited.

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

A light-emitting diode lamp comprising a light frame and heat dissipation on a side of the light stand And a plurality of light-emitting diode modules and a light-emitting cover for illuminating the light-emitting diode modules, and at least two heat-absorbing members disposed in the light cover and disposed for the light-emitting diode module, each The heat absorbing member has a bottom plate connected to the heat sink and a top plate inclined relative to the bottom plate, and the two top plates are at an angle to each other.

Because the top plate and the bottom plate are inclined relative to each other and the two top plates are at an angle to each other, the two top plates are respectively oriented in opposite directions, so that the light emitting diode modules on the top plate face in opposite directions, so that the light emitting diode lamps are illuminated. The area is wider than the traditional light-emitting diode lamps, and it can achieve better lighting effects while ensuring the service life of the lamps.

10‧‧‧Lighting diode lamps

22‧‧‧light frame

20‧‧‧Light stand

24‧‧‧Shell

26‧‧‧ Cover

28‧‧‧Arch

30‧‧‧heat absorber

31‧‧‧Hybrid

32‧‧‧floor

34‧‧‧ top board

36‧‧‧Connecting board

38‧‧‧Air passage

40‧‧‧heatsink

42‧‧‧heat conducting plate

44‧‧‧First heat sink fin

46‧‧‧Second heat sink fins

50‧‧‧Lighting diode module

52‧‧‧ boards

54‧‧‧Lighting diode

56‧‧‧Connectors

60‧‧‧shade

62‧‧‧ Cover

64‧‧‧ frame

66‧‧‧Folding

70‧‧‧Drive Circuit Module

80, 90‧‧‧ washers

100‧‧‧ cushion

220‧‧‧Frame

222, 242‧‧‧ side walls

240‧‧‧ bottom wall

620‧‧‧ openings

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

2 is an exploded perspective view of the light-emitting diode lamp of FIG. 1.

3 is a perspective view of the light emitting diode module and the heat absorbing body of FIG. 2.

4 is an exploded perspective view of the other direction of the light-emitting diode lamp of FIG. 2.

Referring to FIG. 1 and FIG. 2 , the LED lamp 10 of the present invention includes a lamp holder 20 , a heat absorbing body 30 and a heat sink 40 respectively mounted on the upper and lower sides of the lamp holder 20 , and a plurality of stickers attached to the heat absorbing body 30 . The upper LED module 50 and a cover 60 are disposed on the upper side of the lamp holder 20 and the heat absorbing body 30 and the LED module 50 are disposed therein.

Referring to FIG. 2, the lamp holder 20 includes a rectangular lamp frame 22, a housing 24 integrally formed from one end of the lamp frame 22 for wiring or mounting, and a cover. An arcuate cover 26 on the housing 24. The light frame 22 includes a frame 220 having an opening (not shown) and four side walls 222 extending upwardly from the frame 220. The housing 24 includes a bottom wall 240 and side walls 242 extending upwardly from the periphery of the bottom wall 240. The bottom wall 240 has an arcuate structure with both ends upturned, and the bottom wall 240 extends downward beyond the bottom of the lamp frame 22. The opposite sides of the housing 24 extend beyond opposite sides of the light frame 22. A side wall 242 at one end of the bottom wall 240 and adjacent to the light frame 22 divides the housing 24 and the light frame 22 into two spaced apart cavities. An arch portion 28 extends from the bottom wall 240 to the middle of the housing 24. A through hole (not shown) passes through the side wall 242 of the housing 24 at the other end of the bottom wall 240 and the arch portion 28 to facilitate mounting the LED device 10 to a light pole. Show). In this embodiment, a driving circuit module 70 is mounted in the accommodating space formed by the housing 24 and the curved cover 26, and is located on one side of the arch portion 28. In other embodiments, the two driving circuit modules 70 are mounted in the accommodating space formed by the housing 24 and the curved cover 26, and are located on opposite sides of the arch portion 28.

Referring to FIG. 3 at the same time, the heat absorbing body 30 is made of a metal having good thermal conductivity such as copper, aluminum or the like. The heat absorbing body 30 is composed of eight heat absorbing members 31 which are arranged in parallel to two rows of one side of the light frame 22 of the lamp holder 20, and four heat absorbing members 31 are arranged in each row. Each of the heat absorbing members 31 includes a bottom plate 32 having a rectangular plate shape, a rectangular top plate 34 on the bottom plate 32, and a plurality of connecting plates 36 connecting the top plate 34 and the bottom plate 32. The top plate 34 is inclined downwardly from the inner side of the heat absorbing body 30 and spaced apart from the bottom plate 32 such that the top plate 34 of the two rows of heat absorbing members 31 faces the opposite sides of the heat absorbing body 30. The top plate 34 is on the bottom plate 32 The upper projection overlaps the bottom plate 32. The connecting plate 36 is perpendicular to the bottom plate 32, and each connecting plate 36 is parallel and spaced apart from each other to form a plurality of air flow passages 38. The height of the connecting plate 36 gradually decreases from the inner side to the outer side of the heat absorbing body 30 along the inclined direction of the top plate 34.

Referring to FIG. 2, the heat sink 40 is made of a high thermal conductivity metal or alloy such as copper, aluminum or copper aluminum alloy. The heat sink 40 includes a flat plate-shaped heat conducting plate 42 , a plurality of parallel first heat radiating fins 44 and a plurality of parallel second heat radiating fins 46 extending integrally from a top surface and a bottom surface of the heat conducting plate 42 . The first heat dissipation fins 44 are vertically and integrally extended from opposite sides of the top surface of the heat conduction plate 42. The heat dissipating fins 42 are not provided with heat dissipating fins, and the bottom plate 32 of the heat absorbing body 30 is placed in parallel on the top surface of the heat conducting plate 42 in parallel. The height of the first heat dissipation fins 44 decreases from the corresponding side of the heat guide plate 42 near the heat absorbing body 30 side. Referring to FIG. 4 , the second heat dissipation fins 46 are formed by the lateral and longitudinal grooves of the heat sink 40 so as to be arranged in a plurality of rows and a plurality of rows on the bottom surface of the heat conduction plate 42 , and an air flow is formed between adjacent rows and columns. The channel, such that the second heat sink fin 46 forms a cross-flow channel (not labeled) on the bottom surface of the heat conducting plate 42. The second heat dissipation fins 46 on the opposite sides of the bottom surface of the heat conducting plate 42 are shorter than the second heat dissipation fins 46 in the middle portion. The height of the second heat dissipating fins 46 is gradually increased from the opposite sides of the bottom surface of the heat conducting plate 42 toward the middle portion, so that the end portion of the second heat dissipating fins 46 forms the heat sink 40 on one side of the bottom surface of the heat conducting plate 42. Curved bottom profile. The lamp frame 22 of the lamp holder 20 is placed on the heat conducting plate 42 in parallel with the heat dissipating fins 44 and 46, and the heat absorbing body 30 is housed in the lamp frame 22. The housing 24 of the lamp holder 20 extends beyond one end of the heat sink 40, wherein a substantially rectangular annular washer The 80 is sandwiched between the lamp holder 20 and the heat sink 40.

Referring to FIG. 3 , each LED module 50 includes a rectangular circuit board 52 , a plurality of LEDs 54 uniformly fixed to one side of the circuit board 52 , and a connector mounted at a corner of the bottom end of the circuit board 52 . 56. The other side of the circuit board 52 is attached to the top plate 34 of the heat absorbing body 30. The light emitting diodes 54 are arranged in parallel with the plurality of rows of the heat absorbing bodies 30, and the two ends of each row extend to opposite side edges of the circuit board 52, respectively. The connector 56 is electrically connected to the driving circuit module 70 to supply power to the LED module 50. The area of the circuit board 52 of the LED module 50 is the same as the area of the top plate 34 of the heat absorbing body 30. In other embodiments, the area of the circuit board 52 of the LED module 50 and the top plate 34 are the same. The area can vary. The number of the top plates 34 corresponds to the number of the LED modules 50. In this embodiment, the number of the LED modules 50 and the top plate 34 are eight, and in other embodiments, the LED module is used. Group 50 and top plate 34 can be other numbers.

Referring to FIG. 4 at the same time, the lamp cover 60 is usually made of transparent plastic, glass or other materials. The lamp cover 60 includes a cover 62 and a frame 64 pressed against the edge of the cover 62 and coupled to the lamp frame 22. The cover 62 has a semi-cylindrical housing with an opening 620 facing the heat sink 40. A flange 66 surrounding the opening 620 extends outwardly from the edge of the cover 62. The hem 66 is placed on the frame 220 of the lamp holder 20 to cover the illuminating diode module 50 and the heat absorbing body 30 in the hood 62. An annular gasket 90 having a rectangular shape is interposed between the flanges 66 and the frame 220. The frame 64 is fixed to the frame 220 by screws (not shown) and the cover 62 is sandwiched therebetween. a rectangular ring cushion 100 The clamping between the frame 64 and the flange 66 serves as a buffering function.

When the LED device 10 is used, a light pole (not shown) is inserted into the through hole (not shown) of the lamp holder 20, and the light emitting diode 54 of the lamp 10 has a current flowing to illuminate. At the same time, the light-emitting diodes 54 generate heat, which is transferred to the heat-conducting plate 42 of the heat sink 40 by the heat-absorbing body 30, and then radiates heat to the surrounding air by the first heat-dissipating fins 44 and the second heat-dissipating fins 46. in. Thus, the temperature in the cover 62 of the lamp cover 60 is lowered, and the light-emitting diode 54 operates in a normal temperature range to extend the service life of the lamp. At the same time, since the top plate 34 of the heat absorbing member 31 of the heat absorbing body 30 is inclined downward from the inner side of the heat absorbing body 30, the top plate 34 of the two rows of heat absorbing members 31 faces the opposite sides of the heat absorbing body 30, thereby being located at the top plate 34. The upper LED module 50 is obliquely outward and faces the opposite sides of the heat absorbing body 30, so that the area illuminated by the LED illuminator 10 is wider than that of the conventional illuminating diode lamp, and while ensuring the service life of the lamp, Can achieve better lighting effects.

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‧‧‧Lighting diode lamps

22‧‧‧light frame

20‧‧‧Light stand

24‧‧‧Shell

26‧‧‧ Cover

28‧‧‧Arch

30‧‧‧heat absorber

40‧‧‧heatsink

42‧‧‧heat conducting plate

44‧‧‧First heat sink fin

46‧‧‧Second heat sink fins

50‧‧‧Lighting diode module

60‧‧‧shade

62‧‧‧ Cover

64‧‧‧ frame

66‧‧‧Folding

70‧‧‧Drive Circuit Module

80, 90‧‧‧ washers

100‧‧‧ cushion

220‧‧‧Frame

222, 242‧‧‧ side walls

240‧‧‧ bottom wall

Claims (10)

A light-emitting diode lamp includes a light stand, a heat sink on one side of the light stand, a plurality of light-emitting diode modules, and a lamp cover in which the light-emitting diode modules are covered. The method further includes at least two heat absorbing members disposed in the lamp cover and disposed on the light emitting diode module, each heat absorbing member having a bottom plate connected to the heat sink and a top plate inclined relative to the bottom plate, and the two top plates are mutually formed A certain angle. The illuminating diode lamp of claim 1, wherein the heat absorbing members are arranged in parallel, and the top plates are respectively oriented in opposite directions. The illuminating diode lamp of claim 1 or 2, wherein each of the heat absorbing members further comprises a plurality of parallel spaced connecting plates, the connecting plate connecting the top plate and the bottom plate. The illuminating diode lamp of claim 3, wherein the connecting plate is perpendicular to the bottom plate. The illuminating diode lamp of claim 1, wherein the top plate and the bottom plate of each of the heat absorbing members are disposed at an acute angle. The illuminating diode lamp of claim 1, wherein the projection of the top plate on the bottom plate overlaps the bottom plate. The illuminating diode lamp of claim 1 or 2, wherein the heat sink comprises a heat conducting plate, and the bottom plate of the heat absorbing member is attached to the middle of the heat conducting plate. The illuminating diode lamp according to claim 7, wherein the heat dissipation The device further includes a plurality of first heat dissipating fins extending from opposite sides of the top surface of the heat conducting board and a plurality of second heat dissipating fins extending from a bottom surface of the heat conducting board, the first heat dissipating fins being located on opposite sides of the heat sink . The illuminating diode lamp of claim 1 or 2, wherein the lamp holder comprises a lamp frame, a housing integrally formed from one end of the lamp frame for wiring or mounting, and a cover a cover on the housing. The illuminating diode lamp of claim 9, wherein the lamp cover comprises a cover that is placed on the heat absorbing member and a frame that is pressed against the edge of the cover and combined with the light frame.