CN203718463U - A pulsating heat pipe integrated LED lamp - Google Patents

Abstract

The utility model discloses an integrated LED lamp of pulsation heat pipe formula belong to lighting device technical field, including LED lamp assembly, aluminium base board, sun fancy fin, upper fixing base and lower fixing base, LED lamp assembly includes lamp integrated board, printing opacity cover, fixes LED chip and several LED lamp on the lamp integrated board, its characterized in that LED lamp assembly fixes on aluminium base board, passes through bolt fastening a plurality of fins between aluminium base board and the upper fixing base, the fin is sun fancy heat dissipation fin, and the fin central authorities are equipped with hollow pulsation heat pipe formula copper post, and pulsation heat pipe formula copper post inlays in the symmetry center of fin, and hollow copper post outside and sun fancy radiant fin coupling are together; the utility model discloses can derive the heat that high-power integrated LED lamp during operation produced fast, make LED integrated chip operating temperature be in the optimum, have great positive effect to the luminous efficacy who improves its life and LED lamp.

Description

A pulsating heat pipe integrated LED lamp

technical field

The utility model belongs to the technical field of lighting devices, in particular to a pulsating heat pipe integrated LED lamp.

Background technique

Nowadays, as an energy-saving light source, high-power LED lights have the advantages of environmental protection, energy saving, pure light color, high luminous efficiency, and long life, and are widely used in various fields such as road lighting. However, when high-power LEDs are used, 85% to 90% of the input electric energy is converted into heat energy, thereby generating a large amount of heat, the light extraction efficiency is low, the actual service life is far less than the theoretical value, and the cost performance is lower than that of traditional lamps. Because the LED lighting scheme does not pay enough attention to heat dissipation, or the technical level is limited, the heat cannot be dissipated in time, resulting in the internal temperature being too high and the LED lamp chip being burned out. For example, if a 10W LED lamp has a photoelectric conversion efficiency of 20%, 8W of electrical energy will be converted into heat energy. If no heat dissipation measures are taken, the junction temperature of the LED will rise rapidly. When the maximum allowable temperature is exceeded, the LED Chips can be damaged by overheating. Therefore, in the high-power LED lighting industry, the problem of heat dissipation has become very prominent. The working status and heat dissipation design of LEDs are not only directly related to the actual luminous efficiency of LEDs, but also related to their actual service life. In order to cope with the ever-increasing updates of LED lamp products, it is necessary to research and develop corresponding heat dissipation methods to meet their different heat dissipation requirements. The pulsating heat pipe transfers heat quickly. Compared with silver, copper, aluminum and other metals, the pulsating heat pipe per unit weight can transfer several orders of magnitude more heat, so it can obtain a larger heat transfer rate with a smaller temperature difference. However, the existing High-power LED lamps have not yet adopted pulsating heat pipes for heat dissipation.

Contents of the invention

The purpose of this utility model is to propose a new type of high-power LED lamp, which can enhance its heat dissipation effect more effectively, improve its luminous efficiency and prolong its service life.

In order to achieve the above purpose, the technical solution adopted is: a pulsating heat pipe integrated LED lamp, including an LED lamp assembly, an aluminum substrate, a sun pattern fin, an upper fixing seat and a lower fixing seat, the LED lamp assembly It includes a lamp integrated board, a light-transmitting cover, LED chips fixed on the lamp integrated board and several LED lamps. Fins, the fins are solar flower heat dissipation fins, the center of the fins is provided with a hollow pulsating heat pipe type copper column, the pulsating heat pipe type copper column is embedded in the symmetrical center of the fin, and the outside of the hollow copper column is radiated with the sun flower The ribs are coupled together; the lower end of the pulsating heat pipe copper column is connected to the aluminum substrate, and the upper end supports a fixed power transformer; a number of evenly distributed L-shaped pulsating heat pipes are arranged inside the pulsating heat pipe copper column.

One side of the aluminum substrate is connected to the LED lamp, and the other side is connected to the fins and the pulsating heat pipe type copper pillars. The aluminum substrate is provided with nut perforations for fixing the fins and copper pillars and lead holes for passing wires.

The pulsating heat pipe type copper column is provided with nut holes for fixing with the aluminum substrate.

There are 12 L-shaped pulsating heat pipes at intervals of 30 degrees in the copper column.

The utility model has the advantages that the heat generated when the high-power integrated LED lamp is working can be quickly exported, so that the working temperature of the LED integrated chip is in the best state. Compared with the traditional high-power integrated LED lamp that only uses fins to dissipate heat, the heat dissipation effect is greatly improved, and it has a greater positive effect on improving its service life and the luminous efficiency of the LED lamp.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a left side view of Fig. 1 .

Fig. 3 is a right side view of Fig. 1 .

As shown in the figure: 1. fins, 2. copper pillars, 3. pulsating heat pipe, 4. aluminum substrate, 5. lead hole, 6. LED chip, 7. light-transmitting cover.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

Embodiments, as shown in Figures 1, 2, and 3, a pulsating heat pipe integrated LED lamp includes an LED lamp assembly, an aluminum substrate 4, a sun pattern fin 1, an upper fixing seat and a lower fixing seat, and the LED The lamp assembly includes a lamp integrated board, a light-transmitting cover 7, an LED chip 6 fixed on the lamp integrated board and several LED lamps, and the LED lamp assembly is fixed on the aluminum substrate 4, between the aluminum substrate 4 and the upper fixing seat A number of fins 1 are fixed by bolts. The fins 1 are solar fancy heat dissipation fins 1. A hollow pulsating heat pipe type copper column 2 is arranged in the center of the fin 1. The pulsating heat pipe type copper column 2 is embedded in the symmetry of the fin 1. In the center, the hollow copper column 2 is coupled with the sunflower radiating fin 1; the lower end of the pulsating heat pipe copper column 2 is connected to the aluminum substrate 4, and the upper end supports a fixed power transformer; the pulsating heat pipe copper column 2 is provided with 12 Root L-shaped pulsating heat pipes 3 evenly distributed. One side of the aluminum substrate 4 is connected to the LED lamp, and the other side is connected to the fin 1 and the pulsating heat pipe type copper column 2. The aluminum substrate 4 is provided with nuts for fixing the fin 1 and the copper column 2 and lead wires for threading. Hole 5. The pulsating heat pipe copper column 2 is provided with nut holes for fixing with the aluminum substrate 4 . When the high-power integrated LED lamp is working, the heat emitted by the LED lamp is transmitted to the bottom of the copper column 2 through the aluminum substrate 4. At this time, the pulsating heat pipe 3 in the copper column 2 of the pulsating heat pipe type works to transfer the heat from the bottom to the copper column. 2 all around and the top, then dissipate the heat into the air through the fins 1. Compared with silver, copper, aluminum and other metals, the pulsating heat pipe 3 per unit weight can transfer several orders of magnitude more heat, so a larger heat transfer rate can be obtained with a smaller temperature difference, and the temperature of the entire copper column 2 is approximately equal. Therefore, the effect of quickly exporting and dissipating the heat of the LED lamp can be achieved.

Finally, it should be noted that obviously, the above-mentioned embodiments are only examples for clearly illustrating the utility model, rather than limiting the implementation manner. For those of ordinary skill in the art, on the basis of the above description, other changes or changes in different forms can also be made, and the obvious changes or changes derived therefrom are still within the protection scope of the present utility model.

Claims (4)

1. a pulsating heat pipe formula integrated LED lamp, comprise LED lamp assembly, aluminium base, sun fancy fin, upper fixed seat and lower fixed seat, described LED lamp assembly comprises lamp circuit board, diffuser, be fixed on LED chip and several LED lamp on lamp circuit board, it is characterized in that described LED lamp assembly is fixed on aluminium base, between aluminium base and upper fixed seat, be bolted some fins, described fin is sun fancy radiated rib, fin central authorities are provided with hollow pulsating heat pipe formula copper post, pulsating heat pipe formula copper post is embedded in the symmetrical centre of fin, hollow copper post outside is together with the coupling of heronsbill radiant type fin, described pulsating heat pipe formula copper post lower end is connected on aluminium base, and fixed power source transformer is supported in upper end, in pulsating heat pipe formula copper post, be provided with some equally distributed L shaped pulsating heat pipes.

2. a kind of pulsating heat pipe formula integrated LED lamp according to claim 1, it is characterized in that described aluminium base one side connects LED lamp, opposite side connection fin and pulsating heat pipe formula copper post, aluminium base is provided with for the nut perforation of fixedly fin and copper post and wears the fairlead that electric wire is used.

3. a kind of pulsating heat pipe formula integrated LED lamp according to claim 1, it is characterized in that described pulsating heat pipe formula copper post be provided with for aluminium base fixing nut perforation.

4. a kind of pulsating heat pipe formula integrated LED lamp according to claim 1, is characterized in that being provided with in described copper post the L shaped pulsating heat pipe of 12 intervals, 30 degree.