CN201110528Y

CN201110528Y - LED lamp with blasting air type to radiate heat

Info

Publication number: CN201110528Y
Application number: CNU2007200560988U
Authority: CN
Inventors: 莫家贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-24
Filing date: 2007-08-24
Publication date: 2008-09-03
Anticipated expiration: 2017-08-24

Abstract

The utility model discloses an LED lamp which dissipates heat in a blowing mode and comprises a lamp shade, wherein an LED light source is installed in the lamp shade, the LED light source is installed and clung on a radiating flange, a fan is arranged outside the radiating flange, and an air inlet and an air exhaust port are respectively arranged on the lampshade corresponding to an air inlet end and an air outlet end of the fan. Since the fan is installed outside the radiating flange, heat energy which is produced by the LED light source is rapidly driven away by air current under the drive of the fan, thereby the purpose for radiating and cooling rapidly is achieved, the using amount of the radiating flange can be reduced, which not only saves the materials, but also can guarantee arbitrary play of outer shape aesthetics and art design of the lamp.

Description

A kind of LED light fixture that dispels the heat in the blowing mode

Technical field

The utility model relates to a kind of lighting, particularly a kind of LED light fixture that dispels the heat in the blowing mode.

Background technology

Advantages such as LED has that energy input is little, response speed is fast, long service life, luminous efficiency height and adjustable brightness joint have been widely used in illumination, and the trend that replaces conventional incandescent or fluorescent lamp have been arranged.Along with the maturation of LED production technology and people pursue the quickening of paces to LED brightness, the LED of high-power, high brightness, super brightness has come into daily life and has slowly become people's first-selection.Because the architectural feature of LED self: contain PN junction, and use epoxy resin or other nonmetallic materials that PN junction is encapsulated.PN junction is responsive to heat, outer field encapsulating material is unfavorable for the conduction of heat and distributes, if the heat that produces is not in time led away or left, the temperature of LED will very fast rising, and temperature surpasses certain value, the light decay of LED is just fairly obvious, and service life sharply shorten, therefore, the LED light fixture, particularly the LED lamp light source part problem of how to dispel the heat, lowering the temperature is subjected to people's common concern, and is especially true for LED high-power, high brightness.Way in the past is, the led light source welding is fitted on the special metallic circuit, as aluminium base circuit board etc., utilize the excellent heat conductivity performance of metal that the heat that LED produces is dissipated, this measure is for the little LED of power, reasonable radiating effect is arranged, if power is big as single LEDs power 5W, 10W etc., especially when the LED quantity of using at one when above, it is far from being enough utilizing aluminium base circuit board heat radiation, need to use special fin, led light source is fitted on the fin, could guarantee that LED normally works.Though fin has been installed on the led light source, really get a desired effect, also need reasonably design the size of fin, to reach ideal effect.Undersized, do not have the effect of good heat radiating, oversize, make the volume of light fixture also and then become big, cause the input of more materials, also restricting the performance of light fixture aesthetic appearance and design.

Summary of the invention

In order to address the above problem, the purpose of this utility model is to provide a kind of rational in infrastructure, LED light fixture that radiating effect is good dispels the heat in the blowing mode.

The technical solution of the utility model is:

A kind of LED light fixture that dispels the heat in the blowing mode comprises lampshade, and led light source is housed in the lampshade, and led light source is installed or fitted on the fin, and the fin outside is provided with fan, and air intake, outlet air end corresponding to fan on the lampshade are respectively equipped with air inlet and exhaust outlet.

The beneficial effects of the utility model are: fan is equipped with in the fin outside, under the driving of fan, the heat that led light source produces is very fast to be taken away by air-flow, thereby reach the purpose of quick heat radiating cooling, can reduce the usage quantity of fin, both save material, can guarantee any performance of light fixture aesthetic appearance and design again.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a fin cross-sectional structure schematic diagram;

Fig. 3 is the structural representation of embodiment desk lamp of the present utility model;

Fig. 4 is the structural representation of embodiment wall lamp of the present utility model or lamp affixed to the ceiling;

Fig. 5 is the structural representation of embodiment setting-in lamp of the present utility model;

Fig. 6 is the structural representation of embodiment Down lamp of the present utility model.

The specific embodiment

With reference to Fig. 1, a kind of LED light fixture that dispels the heat in the blowing mode of the present utility model, comprise lampshade 2, led light source 1 is housed in the lampshade 2, led light source 1 is installed or is fitted on the fin 3, fin 3 outsides are provided with fan 4, and air intake, outlet air end corresponding to fan 4 on the lampshade 2 are respectively equipped with air inlet 20 and exhaust outlet 21.

When LED light fixture operate as normal, led light source 1 is luminous, fan 4 rotates, led light source produces a large amount of heats, heat is delivered on the fin 3, as shown in Figure 2, fin 3 is the metalworks with many " U " shapes or " V " connected in star, the general aluminum products that use, a large amount of " U " shapes or " V " connected in star make the fin 3 and the contact area of air increase, and can be dispersed into heat in the air quickly, the air major part that absorbs heat accumulates in " U " shape of fin 3 or " V " connected in star and can not in time loose, under the driving of fan 4, the air of heat blown off apace " U " shape or " V " connected in star of fin 4, simultaneously, cold air flows to " U " shape or " V " connected in star and absorbs the heat of fin 3, the air that is heated is again by the fan fin 3 that blows off, and so circulation constantly realizes the purpose of heat radiation in time.

On the lampshade 2 corresponding to the air intake and the outlet air end of fan 4, be provided with air inlet 20 and exhaust outlet 21, the hot-air of fin 3 of being blown off will be discharged from exhaust outlet 21, cold air enters in the lampshade 2 from air inlet 20, and enter fan 4 from the air intake of fan 4, the cold air that enters fan 4 is driven to fin 3 and carries out heat exchange and become hot-air, and the air of heat is blown again to lampshade 2, and circulation reaches the purpose of heat radiation according to this.

For reaching better radiating effect, be provided with dividing plate 22 in the lampshade 2, fan 4 is located on the dividing plate 22, and described air inlet 20 and exhaust outlet 21 are positioned at the both sides of dividing plate 22.The hot-air that absorbs heat so just can not mix with the cold air that enters lampshade 2, makes radiating effect better.

Fig. 3 is the embodiment of desk lamp, and lampshade 2 is provided with support 23, and support 23 is connected in base 5, constitutes a desk lamp like this.If support 23 or base 5 are hollow structure, and be communicated with the space at the air intake place of lampshade 2 internal fans 4, air inlet 20 also can be located on support 23 or the base 5, can reach same effect.If base 5 is designed to be installed on the wall or on the ceiling, then constitute as shown in Figure 4 wall lamp or lamp affixed to the ceiling.

Fig. 5 is the embodiment of setting-in lamp, and lampshade 2 is provided with mounting bracket 24, lamp installation and furred ceiling inside, and light source is exposed at outside the ceiling, and light fixture is fixing by mounting bracket 24.As lampshade 2 is made tubular structure, then constitute Down lamp shown in Figure 6.

More than be the specific embodiment of the present utility model, other equivalent technical solutions all should be within the protection domain of the invention.

Claims

1. LED light fixture that dispels the heat in the blowing mode, comprise lampshade (2), led light source (1) is housed in the lampshade (2), led light source (1) is installed or is fitted on the fin (3), it is characterized in that: fin (3) outside is provided with fan (4), and air intake, outlet air end that lampshade (2) is gone up corresponding to fan (4) are respectively equipped with air inlet (20) and exhaust outlet (21).

2. the LED light fixture that dispels the heat in the blowing mode according to claim 1 is characterized in that: be provided with dividing plate (22) in the lampshade (2), fan (4) is located on the dividing plate (22), and described air inlet (20) and exhaust outlet (21) are positioned at the both sides of dividing plate (22).

3. the LED light fixture that dispels the heat in the blowing mode according to claim 1 and 2 is characterized in that: lampshade (2) is provided with support (23), and support (23) is connected on the base (5).

4. the LED light fixture that dispels the heat in the blowing mode according to claim 1 and 2 is characterized in that: lampshade (2) is provided with mounting bracket (24).