CN203836680U - Heat-dissipation LED lamp with direct blowing type fan - Google Patents

Abstract

This utility model discloses a fan-driven direct-air cooling LED lamp, comprising an LED light source, a substrate, heat sink fins, a fan, a power supply, a lamp holder, a lamp housing, and a lamp shade. The lamp holder, lamp housing, and lamp shade constitute the lamp's outer shell. The LED light source is mounted on the substrate, and heat sink fins are attached to the back of the substrate. A fan is mounted on the heat sink fins, and the power supply is fixed inside the lamp above the fan. The fan directly blows air onto the substrate and heat sink fins, achieving air circulation through ventilation holes around the lamp housing. This cooling method, which utilizes a fan to directly enhance convection, dissipates heat directly into the air, significantly reducing the thermal resistance of traditional LED lamps, resulting in better heat dissipation and greatly increasing power output within the same volume.

Description

A fan direct blowing heat dissipation LED lamp

technical field

The utility model relates to an LED lamp, in particular to a fan direct blowing heat dissipation LED lamp.

Background technique

In recent years, energy saving and environmental protection, and creating a low-carbon society have become the basic policies of countries all over the world. As a new generation of green lighting sources, LED light sources have shown incomparable excellent characteristics of traditional light sources in terms of energy saving and environmental protection. They are widely used in roads, squares, Indoor and other occasions.

LED is used as a cold light source, about 30% of the energy will be converted into light, and the remaining 70% of the energy will be emitted in the form of heat. With the use of LED lights, the temperature will rise accordingly. In order for the LED to work normally, heat dissipation It becomes a problem that must be solved. At present, the method of heat sink is generally used to realize heat dissipation: in outdoor lighting, there is generally no strict requirement on the volume of the lamp, and the heat sink can be made relatively large to achieve faster heat dissipation, and the power of the LED lamp can be made very large ;Compared with outdoor LED lights, indoor ones have higher requirements for their volume and appearance, which leads to the fact that the volume of the radiator cannot be made very large, the heat dissipation speed is not fast enough, and the power cannot be increased. Active heat dissipation is also difficult to increase the heat dissipation speed without increasing the volume and appearance of the lamp body.

At present, there are some active heat dissipation products on the market. Generally, the heat in the light source is first conducted to the heat sink, which is usually a heat sink, and then the fan blows directly on the heat sink. This active cooling method is much better than passive cooling, but it is still limited by the thermal resistance of the aluminum substrate to the heat sink. Usually, the aluminum substrate is very hot and the heat sink is very cool. How to directly dissipate heat from the aluminum substrate has become one of the shackles restricting the development of LEDs.

Contents of the invention

The purpose of the utility model is to provide a fan direct blowing heat dissipation LED lamp for the deficiencies of the prior art.

The purpose of this utility model is achieved through the following technical solutions: a fan direct blowing heat dissipation LED lamp, including LED light source, substrate, cooling fins, fan, power supply, lamp holder, lamp housing and lampshade; wherein, lamp holder, lamp The shell and the lampshade form the shell of the lamp; the LED light source is installed on the base plate, and the back of the base plate is attached and fixed with cooling fins, and a fan is arranged on the cooling fins, and the power supply is fixed in the inner space of the lamp above the fan. The heat dissipation fins are in the shape of sunflowers and have air ducts radiating around. The lamp housing has an air port at the outlet of the air channel of the heat dissipation fin.

The beneficial effect of the utility model is that the light source substrate can be directly dissipated by blowing the fan directly to the substrate, and at the same time, the function of the heat dissipation fins is not removed, so that the light source can be dissipated to a greater extent, and the power supply can also be installed on the The ventilation route can also dissipate heat from the power supply.

Description of drawings

Fig. 1 is a structural schematic diagram of a fan direct blowing heat dissipation LED lamp;

Fig. 2 is a schematic diagram of ventilation;

Fig. 3 is a schematic diagram of an embodiment of a sunflower cooling fin;

In the figure, a light source 1, a substrate 2, a cooling fin 3, a fan 4, a power supply 5, a lamp holder 6, a lamp housing 7, a lampshade 8, an air outlet 9, and an air duct 10.

Detailed ways

As shown in Figure 1, a fan direct blowing heat dissipation LED lamp includes an LED light source 1, a substrate 2, heat dissipation fins 3, a fan 4, a power supply 5, a lamp holder 6, a lamp housing 7 and a lampshade 8; wherein, the lamp holder 6, The lamp housing 7 and the lampshade 8 form the shell of the lamp; the LED light source 1 is installed on the base plate 2, the back of the base plate 2 is pasted and fixed with the cooling fin 3, the cooling fin 3 is provided with a fan 4, and the power supply 5 is fixed on the lamp above the fan 4 interior space.

The heat dissipation fins 3 are in the shape of sunflowers, and have air ducts 10 radiating around.

The lamp housing 7 has a tuyere 9 at the outlet of the air duct 10 of the cooling fin 3 .

The fan 4 can directly blow to the base plate 2 and the cooling fins 3 .

The power supply 5 is located in the ventilation route of the fan 4 .

As shown in Figure 2, when the fan direct blowing heat dissipation LED lamp is working, the fan 4 can directly blow to the heat dissipation fin 3 and the substrate 2, and along the air duct 10 of the heat dissipation fin 3, from the lamp housing 7 to the wind The tuyeres 9 of the road 10 go out, and there are several tuyeres 9, each facing the air duct 10. This can greatly accelerate the heat exchange between the lamp and the outside world.

As shown in FIG. 3 , it is the shape of the sunflower embodiment of the cooling fin 3 . The air duct 10 radiating from the middle to the surroundings can reduce the wind resistance as little as possible and accelerate the heat exchange inside and outside.

Claims (3)

1. a fan straight blow type radiating LED lamp, is characterized in that, comprises LED light source (1), substrate (2), radiating fin (3), fan (4), power supply (5), lamp holder (6), lamp housing (7) and lampshade (8); Wherein, the shell of lamp holder (6), lamp housing (7), lampshade (8) composition light fixture; It is upper that LED light source (1) is arranged on substrate (2), and substrate back laminating is fixed wtih radiating fin (3), and radiating fin is provided with fan (4), and power supply (5) is fixed on the lamp interior space of fan (4) top.

2. fan straight blow type radiating LED lamp according to claim 1, is characterized in that, described radiating fin (3) is heronsbill shape, and the radial air channel of oriented surrounding (10).

3. fan straight blow type radiating LED lamp according to claim 2, is characterized in that, described lamp housing (7) has air port (9) in the exit, air channel (10) that is positioned at radiating fin (3).