TWM453801U - LED lighting device - Google Patents

Description

LED lighting device

The invention relates to a lighting device, in particular to an LED lighting device with extra power.

As an efficient source of light, LED has been widely used in various fields such as environmental protection, high brightness, power saving, etc., such as large street lamps, miner's lamps, outdoor signboards, projection lamps and other lighting equipment, but LED work will A large amount of heat is generated, and if the heat is not dissipated in time, it is easy to cause the LED to overheat, thereby causing the luminous efficiency to decrease.

Therefore, how to improve the heat dissipation effect of electronic components is a problem that cannot be ignored. As shown in Fig. 1 and Fig. 2, the invention patent case of the "Illuminating Light Emitting Diode Lamp with Heat Dissipation Structure" No. I349083 of the Republic of China is an example. The light-emitting diode lamp 1 disclosed in the present invention comprises a light-emitting diode module 11 and a heat sink 12 for cooling the light-emitting diode module 11. The heat sink 12 has a main body 121 that is in contact with the LED module 11 and a plurality of fins 122 connected to the outer surface of the main body 121. Each of the fins 122 is radially distributed around the main body 121. The outer surface of the entire heat sink 12 is convex like a hemisphere. The heat generated by the LED module 11 is transferred to the fins 122 and finally dissipated into the surrounding air, thereby solving the heat dissipation problem of the LEDs 1 .

However, the heat sinks 122 are arranged radially around the main body 121, so that the volume of the entire heat sink 12 is too large. If it is applied to outdoor signboards, projection lamps and the like, a larger accommodation space is required. This causes inconvenience in use or handling.

Therefore, the object of the present invention is to provide an LED lighting device which can improve the heat dissipation function and is small in size.

Therefore, the LED lighting device of the present invention comprises a light emitting unit and a heat dissipating unit disposed outside the light emitting unit. The illuminating unit includes a hollow seat body, and the heat dissipating unit includes a first cover that is disposed outside the hollow seat and has a heat conducting property, and a first one that is connected between the hollow seat body and the first cover a heat pipe, and each of the first heat pipes is filled with a heat conductive medium.

The effect of the present invention is that the thermal energy generated by the operation of the light-emitting unit can be transmitted from the first heat pipe to the first cover by the arrangement of the first heat-conducting tubes filled with the heat-conducting medium, not only The heat dissipation effect also reduces the volume of the entire LED lighting device, thereby reducing the space occupied.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 3 , the first preferred embodiment of the LED lighting device 2 includes a light emitting unit 3 , a heat dissipating unit 4 disposed outside the light emitting unit 3 , and a lamp cover 5 .

The light emitting unit 3 includes a hollow seat body 31 made of metal. a light-emitting element 32 that is located on the bottom surface of the hollow body 31 and has an extremely high-powered light-emitting output, and a control element 33 disposed in the hollow body 31 and electrically connected to the light-emitting element 32, and the hollow body The outer surface has a plurality of spaced-apart grooves 311, and the light-emitting element 32 is driven by the control element 33 to illuminate the light-emitting element 32 and generate thermal energy, and the thermal energy is distributed to the hollow body 31.

The heat dissipating unit 4 includes a first cover 41 that is disposed outside the hollow base 31 and has thermal conductivity, and a plurality of first heat pipes connected between the hollow base 31 and the first cover 41. Each of the first heat transfer tubes 42 is filled with a heat conductive medium 43 , and the first cover 41 has a plurality of positioning grooves 411 formed on the inner surface and facing the grooves 311 , and each of the first heat pipes The opposite ends of the 42 are respectively disposed in the positioning grooves 411 of the first cover 41 and the grooves 311 of the hollow seat body 31. In addition, the lamp cover 5 is positioned on the bottom surface of the hollow seat body 31, and is configured to cover the light-emitting element 32 to achieve the function of collecting light.

In actual use, the heat energy generated by the light-emitting element 32 is distributed in the hollow body 31, and the opposite ends of each of the first heat pipes 42 are respectively disposed in the positioning grooves 411 of the first cover 41. With the grooves 311 of the hollow seat body 31, the heat energy is transmitted from the hollow seat body 31 to the first cover 41 via the first heat transfer tubes 42, thereby dissipating the heat energy to the outside. The temperature of the entire LED lighting device 2 is effectively reduced to achieve a rapid heat dissipation effect.

The LED lighting device 2 of the present invention has the following advantages in practical use by the above-mentioned structural design:

(1) Reduce space occupancy and convenience:

By the arrangement of the first heat transfer tubes 42 instead of the conventional bulky heat sinks, the overall LED lighting device 2 can be reduced in volume, thereby achieving space saving effects, and also facilitating use or handling. Convenience.

(2) Fast heat dissipation:

Since the heat energy generated by the light-emitting element 32 is distributed in the hollow body 31, the first heat-conducting tube 42 is filled with a heat-conducting medium 43, and the opposite ends of each of the first heat-conducting tubes 42 are respectively disposed on the And the positioning groove 411 and the groove 311, the thermal energy is transmitted from the hollow body 31 to the first cover 41 via the first heat transfer tubes 42, thereby dissipating the heat energy to the outside, thereby achieving rapid heat conduction. And the effect of heat dissipation.

(3) Extend the service life and reduce the cost:

As described above, by the arrangement of the first heat transfer tubes 42 filled with the heat transfer medium 43, the speed of the overall heat dissipation can be accelerated, and the light-emitting element 32 can be prevented from being damaged by overheating, thereby prolonging the service life of the light-emitting element 32. In turn, the cost of use can also be reduced.

Referring to FIG. 4, a second preferred embodiment of the LED lighting device 2 of the present invention is substantially similar to the first preferred embodiment, except that the heat dissipating unit 4 of the LED lighting device 2 is The first cover 41 also has a plurality of limiting slots 412 formed at intervals on the outer surface. In addition, the heat dissipation unit 4 further includes a second cover 44 disposed outside the first cover 41 and having thermal conductivity, and a plurality of the first cover 41 and the second cover 44 are connected between the first cover 41 and the second cover 44. Two heat pipes 45, and each of the second heat pipes 45 is filled inside The second cover 44 has a plurality of fixing grooves 441 formed on the inner surface and facing the limiting grooves 412 of the first cover 41, and each of the second heat pipes 45 The opposite ends are respectively disposed in the limiting slots 412 of the first cover 41 and the fixing slots 441 of the second cover 44.

In the actual use, the opposite ends of the second heat transfer tubes 45 are respectively disposed on the limiting slots 412 of the first cover 41 and the fixing slots 441 of the second cover 44. The first cover 41 is conducted to the second cover 44 via the second heat transfer tubes 45, so that the thermal energy on the first cover 41 is dissipated to the outside, thereby effectively reducing the LEDs more effectively. The overall temperature of the lighting device 2 achieves a rapid heat dissipation effect.

Therefore, in addition to the same effect as the first preferred embodiment, the thermal energy of the first cover 41 can be transmitted to the first cover by the arrangement of the second heat transfer tubes 45. The second cover 44 can achieve the effect of good heat dissipation and rapid cooling.

In summary, the LED lighting device 2 of the present invention has the above-mentioned structural design, in addition to reducing the space occupation and improving the convenience, the heat dissipation effect can be achieved, and the service life of the light-emitting element 32 can be prolonged. Can achieve the purpose of this new type.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification made by the novel patent application scope and the novel description content, All remain within the scope of this new patent.

2‧‧‧LED lighting device

3‧‧‧Lighting unit

31‧‧‧ hollow body

311‧‧‧ Groove

32‧‧‧Lighting elements

33‧‧‧Control elements

4‧‧‧Heat unit

41‧‧‧First cover

411‧‧‧ positioning slot

412‧‧‧Limited slot

42‧‧‧First heat pipe

43‧‧‧ Thermal medium

44‧‧‧second cover

441‧‧‧fixed slot

45‧‧‧Second heat pipe

5‧‧‧shade

Figure 1 is a perspective view showing the invention patent of "Illumination Light Emitting Diode with Heat Dissipation Structure" of the Republic of China Announcement No. I349083; Fig. 2 is a partial cross-sectional perspective view, which is a supplementary sectional view, and Fig. 3 is a cross-sectional side view illustrating A first preferred embodiment of the novel LED lighting device; and FIG. 4 is a cross-sectional side view illustrating a second preferred embodiment of the novel LED lighting device.

2‧‧‧LED lighting device

3‧‧‧Lighting unit

31‧‧‧ hollow body

311‧‧‧ Groove

32‧‧‧Lighting elements

33‧‧‧Control elements

4‧‧‧Heat unit

41‧‧‧First cover

411‧‧‧ positioning slot

412‧‧‧Limited slot

42‧‧‧First heat pipe

43‧‧‧ Thermal medium

44‧‧‧second cover

441‧‧‧fixed slot

45‧‧‧Second heat pipe

5‧‧‧shade

Claims (6)

An LED lighting device comprising: a light emitting unit comprising a hollow body; and a heat dissipating unit disposed outside the light emitting unit, the heat dissipating unit comprising a first cover covered by the hollow body and having heat conducting properties And a plurality of first heat pipes connected between the hollow body and the first cover, and each of the first heat pipes is filled with a heat conductive medium. The LED lighting device of claim 1, wherein the outer surface of the hollow seat has a plurality of spaced grooves, and the first cover has a plurality of positioning grooves formed at intervals on the inner surface, each first The opposite ends of the heat pipe are respectively disposed on the positioning grooves and the grooves. The LED lighting device of claim 2, wherein the heat dissipating unit further comprises a second cover disposed outside the first cover and having a heat conducting property, and a plurality of the first cover is coupled to the first cover a second heat pipe between the second covers. The LED lighting device of claim 3, wherein the first cover further has a plurality of spaced apart slots formed on the outer surface, the second cover having a plurality of spaced apart intervals formed on the inner surface The slots, the opposite ends of each of the second heat pipes are respectively disposed in the limiting slots and the fixing slots. The LED lighting device according to any one of claims 1 to 4, wherein the illuminating unit further comprises a illuminating element that is located on a bottom surface of the hollow body, and is disposed in the hollow body and is illuminating A control element that is electrically connected to the component. The LED lighting device of claim 5, further comprising a lamp cover that is located on a bottom surface of the hollow body and that is used to cover the light-emitting element.