TWI404884B - Led lamp - Google Patents

Abstract

An LED lamp includes a shell with a window defined therein, a cover engaged with the shell, a heat sink fixed in the cover, and a plurality of LED modules attached to the heat sink and facing to the window of the shell. The LED modules and the heat sink are received in the shell.

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 highly efficient light source, the light-emitting diode has been widely used in various fields due to its environmental protection, high brightness, 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 replace the conventional light source such as an incandescent lamp widely and revolutionarily, and thus become the main light source that meets the theme of energy conservation and environmental protection.

However, the greater the power and brightness, the greater the heat generated by the LED or its module, and it is difficult to dissipate in a relatively small volume of a light-emitting diode lamp. Therefore, the LED has a large heat dissipation technology bottleneck, which is the most difficult point for the current marketization of high-power, high-brightness LED lamps.

In view of this, it is necessary to provide a light-emitting diode lamp having a good heat dissipation effect.

A light-emitting diode lamp includes a casing and a cover body combined with the casing, the casing is provided with a window, and a heat sink is fixed in the cover body, and the plurality of light-emitting lights are The polar light source is placed on the heat sink and faces the window of the housing. The heat sink and the light emitting diode light source are completely accommodated in the housing. The housing is in the shape of a gourd, and two chambers of different sizes are formed therein. The heat sink and the light emitting diode light source are housed in a larger chamber.

Compared with the prior art, the light-emitting diode lamp of the invention directly affixes the light-emitting diode light source on the heat sink, and can dissipate the heat generated by the working of the light-emitting diode light source to the outside of the lamp in time, thereby ensuring the light-emitting diode The normal working temperature of the body extends the service life of the lamp.

10, 10a‧‧‧ lamp holder

11, 11a‧‧‧ shell

12, 12a‧‧‧ connecting rod

120‧‧‧With holes

13, 13a, 14, 14a‧‧ ‧ chamber

130, 130a, 140‧‧‧ window

15, 15a, 231a‧‧ ‧ threaded holes

16, 27, 27a, 35‧‧‧ through holes

20, 20a‧‧‧ cover

21, 21a, 22‧‧‧ main body

23, 23a, 24‧‧‧ support

25, 25a, 26, 26a‧‧‧ Connections

291, 292‧‧‧ waterproof gasket

30, 31, 30a‧‧‧ radiator

301, 301a‧‧‧ substrate

302, 302a‧‧‧ Heat sink fins

33‧‧‧Ventilation trough

36, 70‧‧‧ screws

40, 41, 40a‧‧‧Lighting diode source

401, 401a‧‧‧ mounting plate

402, 402a‧‧‧Lighting diode

50, 51, 50a‧‧‧ Reflector

502, 502a‧‧‧ lamp holes

55‧‧‧Circuit board

60, 61, 60a‧‧ lens

80‧‧‧positioning screws

90‧‧‧Waterproof connector

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

Figure 2 is an inverted view of Figure 1.

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

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

FIG. 5 is a perspective assembled view of another embodiment of a light-emitting diode lamp according to the present invention.

6 is an exploded perspective view of the light-emitting diode lamp of FIG. 5.

Figure 7 is an inverted view of Figure 6.

As shown in FIG. 1-4, it is a preferred embodiment of the light-emitting diode lamp of the present invention. The LED lamp includes a lamp holder 10, a cover body 20 combined with the lamp holder 10, and two heat sinks 30, 31 housed in the lamp holder 10 and combined with the cover body 20. And light-emitting diode light sources 40 and 41 that are respectively attached to the heat sinks 30 and 31. The light-emitting diode lamp further includes two light-reflecting plates 50, 51 disposed on the light-emitting diode light sources 40, 41 and two lenses 60, 61 for light transmission combined with the lamp holder 10.

Referring to FIG. 3 and FIG. 4 at the same time, the lamp holder 10 has a gourd shape as a whole, and includes a housing 11 with a top end closed at the bottom end and a connecting rod 12 connected to the right side of the housing 11. Two chambers 13 and 14 of different sizes and communicating with each other are formed in the casing 11, wherein the chamber 13 is larger than the chamber 14, and the two chambers 13, 14 are substantially cylindrical. The bottom end of the housing 11 forms two different sizes of windows 130, 140 corresponding to the two chambers 13, 14. A plurality of threaded holes 15 are formed in the top end of the housing 11. A through hole 16 is formed at the junction of the housing 11 and the connecting rod 12, and the through hole 16 connects the chamber 14 and the connecting rod 12. The through hole 16 is for receiving a waterproof joint 90 therein. The waterproof joint 90 allows the power supply wires of the light-emitting diode light sources 40, 41 to pass through to be connected to an external power source, and also prevents rainwater or the like from entering the casing 11. Two matching holes 120 through which the positioning screws 80 pass are formed on the connecting rod 12. The link 12 can be fixedly coupled to a light pole (not shown) by a set screw 80.

The cover body 20 corresponding to the housing 11 of the socket 10 is also substantially in the shape of a gourd. The cover body 20 includes two cylindrical body portions 21 and 22 of different sizes, and the annular support members 23 and 24 are respectively formed by bending the bottom ends of the main body portions 21 and 22 inwardly. The connecting portions 25, 26 are formed by bending the distal ends of the main body portions 21, 22 outward. The main body portion 21 is disposed tangentially to the main body portion 22, and the support members 23, 24 at the bottom end thereof are connected to each other. The connecting portions 25, 26 on the top ends of the main body portions 21, 22 are integrally connected to each other, and more specifically, the main body portions 21, 22 are not tangent to each other, and the connecting portions 25, 26 are only the main body portion 21, 22 tangent The part is bent outward and extended. A plurality of through holes 27 are formed on the outer edges of the connecting portions 25, 26. The through holes 27 are adapted to pass through the screw 70 and screw with the threaded holes 15 in the housing 11, thereby fixing the cover 20 to the housing 11.

The heat sink 30 includes a circular substrate 301 and a plurality of fin-shaped fins 302 extending upward from the upper surface of the substrate 301. The height of the heat sink 30 corresponds to the height of the main body portions 21, 22 of the lid body 20. A plurality of ventilation slots 33 parallel to each other are further disposed on the heat dissipation fins 302 in the direction of the vertical heat dissipation fins 302. The heat sink 31 has the same structure as the heat sink 30 except that it is smaller in size than the heat sink 30, and the heat sink 30 is placed on the support member 23 of the cover body 20, and the heat sink 31 is placed on the other support member 24 of the cover body 20.

The light-emitting diode light source 40 includes a mounting plate 401 and a plurality of radially distributed light-emitting diodes 402 mounted on the mounting plate 401. The light emitting diode light source 40 is attached to the lower surface of the substrate 301 of the heat sink 30, and can be fixed by various means such as screw fastening or gluing. The light-emitting diode light source 41 has the same structure as the light-emitting diode light source 40 except that it is smaller in size than the light-emitting diode light source 40. The light emitting diode source 41 is fixed to the bottom surface of the heat sink 31.

The light-reflecting plates 50 and 51 are respectively covered with the light-emitting diode light sources 40 and 41 and fixed to the heat sinks 30 and 31, respectively. Each of the light-emitting diodes 50, 51 is provided with a light hole 502 corresponding to each of the light-emitting diodes 402.

The lenses 60, 61 are respectively disposed on the two windows 130, 140 of the housing 11 of the socket 10, and the light emitted by the LED sources 40, 41 can be transmitted out of the housing 11 via the lenses 60, 61.

When the light-emitting diode lamp is assembled, the light-emitting diode light sources 40, 41 and the light-reflecting plates 50, 51 are fixedly connected to the heat sinks 30, 31, respectively, and then the heat sinks 30, 31 are respectively fixed to the cover body 20, respectively. Support members 23, 24. Screw holes may be respectively disposed on the support members 23, 24 and the heat sinks 30, 31 to be fixed together by screws. After assembly with the heat sinks 30, 31, etc., the connecting portions 25, 26 of the cover 20 and the housing 11 of the socket 10 are fixedly coupled by screws 70. The main body portions 21, 22 and the support members 23, 24 of the cover body 20 are housed in the casing 11. The heat sink 30, the light emitting diode light source 40 and the light reflecting plate 50 are housed in the chamber 13 of the housing 11, and the heat sink 31, the light emitting diode light source 41 and the light reflecting plate 51 are accommodated in the housing 11 Within a smaller chamber 14. Finally, the lenses 60, 61 are placed over the two windows 130, 140 of the housing 11 of the socket 10.

The power lines of the LED light sources 40 and 41 can be connected to an external power source (such as a circuit board, a power source, etc.) through the waterproof connector 90, and the emitted light is adjusted by the reflectors 50 and 51 and then passed through the lenses 60 and 61. Outside the lamp holder 10. The heat generated by the working of the light-emitting diode light sources 40, 41 can be absorbed by the heat sinks 30, 31 and emitted from above the lamp holder 10, thereby ensuring that the light-emitting diodes work at normal temperatures and prolong the service life of the lamps. . Further, the heights of the heat sinks 30, 31 are equivalent to the heights of the main body portions 21, 22 of the cover body 20, and the heat sinks 30, 31 are fixed to the support members 23, 24 of the cover body 20, and the top ends thereof are connected to the cover body 20. The portions 25, 26 are in the same plane. Since the connecting portions 25 and 26 of the cover 20 are connected to the housing 11 of the socket 10, the main body portions 21 and 22 of the cover 20 and the supporting members 23 and 24 are housed in the housing 11 of the socket 10, thereby dissipating heat. The devices 30, 31 are also completely housed in the housing 11, and the heat sinks 30, 31 are not visible at all outside the luminaire, so that the light-emitting diodes are The luminaires are more beautiful. At the same time, since the heat sinks 30 and 31 are completely accommodated in the casing 11, the space inside the casing 11 is fully utilized, thereby reducing the volume of the lamp, and the lamp is more convenient in transportation and disassembly.

As shown in FIG. 5 to FIG. 7 , another embodiment of the light-emitting diode lamp of the present invention is shown. The LED lamp assembly includes a lamp holder 10a, a cover body 20a coupled to the lamp holder 10a, a heat sink 30a housed in the lamp holder 10a and coupled to the cover body 20a, and a heat sink 30a. Light-emitting diode light source 40a. The light emitting diode further includes a light reflecting plate 50a disposed on the light emitting diode light source 40a and a lens 60a for transmitting light combined with the lamp socket 10a. A circuit board 55 is disposed within the socket 10a.

The socket 10a is also in the shape of a gourd as a whole, and has a structure substantially the same as that of the socket 10 in the first embodiment. It also includes a casing 11a and a connecting rod 12a connected to the casing 11a. The only difference is that the housing 11a of the socket 10a only forms a window 130a corresponding to the larger chamber 13a, and the portion of the housing 11a corresponding to the smaller chamber 14a does not have a window. The heat sink 30a, the light emitting diode light source 40a, and the light reflecting plate 50a are housed in the chamber 13a. A circuit board 55 is housed in the chamber 14a.

The cover body 20a includes a cylindrical body portion 21a, and the bottom end of the main body portion 21a is bent horizontally inwardly to form an annular support member 23a, and one of the top ends of the main body portion 21a is bent outwardly and horizontally. An annular connecting portion 25a. The main body portion 21a and the support member 23a are housed in the chamber 13a of the casing 11a. A plurality of threaded holes 231a are defined in the support member 23a, and a waterproof gasket 291 is further disposed on the support member 23a. There is another annular connecting portion 26a on the same horizontal surface as the connecting portion 25a. The connecting portion 26a is smaller than the connecting portion 25a, and the two connecting portions 25a, The 26a is substantially tangentially disposed so as to have the same contour as the top end of the housing 11a of the socket 10a. A plurality of through holes 27a are formed on the outer edges of the connecting portions 25a and 26a. The through holes 27a are provided for the screw 70 to pass through and screwed with the threaded holes 15a of the casing 11a, thereby fixing the cover 20a to the casing 11a. The inner edge of the connecting portion 26a is recessed downward to form another annular support member 24a, and the support member 24a is provided with another waterproof gasket 292. The support member 24a is further provided with a plurality of through holes (not shown). A circular cover 28 is placed over the support member 24a to cover the circuit board 55 within the housing 11a.

The heat sink 30a includes a substrate 301a and a plurality of fin-shaped fins 302a extending upward from the upper surface of the substrate 301a. A plurality of through holes 35 are formed in the substrate 301a, and the through holes 35 are provided for the screw 36 to pass through and screwed with the screw holes 231a of the support member 23a of the cover body 20a to fix the heat sink 30a to the support member 23a.

The light-emitting diode light source 40a includes a plurality of strip-shaped mounting plates 401a and a plurality of light-emitting diodes 402a mounted on the mounting board 401a. The light emitting diode light source 40a is attached to the lower surface of the substrate 301a of the heat sink 30a. The light reflecting plate 50a covers the light emitting diode light source 40a and is fixed to the heat sink 30a. A light hole 502a is disposed on each of the light-emitting diodes 402a corresponding to each of the light-emitting diodes 402a. The lens 60a is disposed on the window 130a of the housing 11a of the socket 10a.

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‧‧‧ lamp holder

11‧‧‧Shell

12‧‧‧ Connecting rod

120‧‧‧With holes

13, 14‧‧‧ chamber

130, 140‧‧‧ window

15‧‧‧Threaded holes

16, 27‧‧‧through holes

20‧‧‧ cover

21, 22‧‧‧ Main body

23, 24‧‧‧Support

25, 26‧‧‧ Connections

30, 31‧‧‧ radiator

301‧‧‧Substrate

302‧‧‧Heat fins

33‧‧‧Ventilation trough

40, 41‧‧‧Lighting diode source

50, 51‧‧‧reflector

502‧‧‧light hole

60, 61‧ ‧ lens

70‧‧‧ screws

80‧‧‧positioning screws

90‧‧‧Waterproof connector

Claims (9)

A light-emitting diode lamp includes a casing and a cover body combined with the casing, wherein the casing is provided with a window, a heat sink is fixed in the cover body, and a plurality of light-emitting diode light sources are placed on the casing. a heat sink and a window facing the casing, the heat sink and the light emitting diode light source are completely accommodated in the casing, wherein the casing is in the shape of a gourd, and two chambers of different sizes are formed therein, the radiator and the radiator The light emitting diode light source is housed in a larger chamber. The illuminating diode lamp of claim 1, wherein the cover body comprises a main body portion, a connecting portion formed by bending one end of the main body portion outwardly, and extending inwardly from the other end of the main body portion. The support member is coupled to the housing, and the main body portion and the support body are received in the housing, and the support member is used for supporting and fixing the heat sink. The illuminating diode lamp of claim 1, further comprising a connecting rod connected to the housing, wherein the housing is provided with a through hole communicating with the connecting rod, and a waterproof joint is disposed at the through hole. The illuminating diode lamp of claim 1, further comprising a second heat sink and a plurality of second illuminating diode light sources, a second heat sink and a second illuminating device disposed on the second heat sink The diode light source is housed in a smaller chamber of the housing. The illuminating diode lamp of claim 4, wherein the second light-emitting diode light source on the housing forms a second window. The illuminating diode lamp of claim 4, wherein the cover body Also in the shape of a gourd, the support member is formed in a larger chamber of the housing, and the cover body forms another support member in the smaller chamber of the housing for supporting the second heat sink. The illuminating diode lamp of claim 1, further comprising a circuit board housed in a smaller chamber of the housing. The illuminating diode lamp of claim 7, wherein the cover body is provided with a cover plate for covering the circuit board. The light-emitting diode lamp of claim 7, further comprising a waterproof ring disposed between the support member and the heat sink.