Radiating LED lamp lamps structure
Technical field
The utility model relates to technical field of lighting fixtures, and particularly LED technical field of lamps specifically refers to a kind of radiating LED lamp lamps structure.
Background technology
LED light fixture is LED lamp, and at present the heat dissipation technology of common semiconductor device is by being divided into from the heat sink mode of taking away heat: natural air cooled, air blast cooling,, force liquid cooling.Due to the particularity of the heat radiation of LED light fixture (high value, maintenance cost are high, longevity of service, degree of protection high), the major way by heat sink heat radiation is for the most natural air cooled.But because the natural air cooled coefficient of heat transfer is lower, in order to meet the heat radiation of great power LED, conventionally can only be by strengthening the raising that realizes heat exchange amount with the heat sink surface long-pending (fin area) of air heat-exchange, the shape that is like this light fixture is done larger and larger, the weight of light fixture is also more and more higher, nature cost has also improved, and heat radiation just becomes the subject matter of LED illuminator.
Utility model content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, provides that a kind of structure is light and handy, weight is little, utilizes that cross-ventilation dispels the heat, the radiating LED lamp lamps structure of good heat dissipation effect.
For realizing above-mentioned object, radiating LED lamp lamps structure of the present utility model by the following technical solutions:
This radiating LED lamp lamps structure, its main feature is, comprise lamp main body and LED chip, described LED chip is arranged in the internal cavity of described lamp main body, described LED chip is communicated with outside air, and the arranged outside of described LED chip has air port, and described air port comprises air inlet and air outlet, outside air is communicated in described LED chip by described air inlet, and this LED chip is communicated with outside air by described air outlet.
LED chip in this radiating LED lamp lamps structure is strip source.
Air inlet in this radiating LED lamp lamps structure is arranged at a side of described LED chip, and described air outlet is arranged at the opposite side of described LED chip.
LED chip in this radiating LED lamp lamps structure is annular light source.
Air inlet in this radiating LED lamp lamps structure and described air outlet are around the periphery that is arranged at described LED chip, and described air inlet is arranged at the below of described air outlet.
Fitting structure in this radiating LED lamp lamps structure also comprises shell and heat conduction backboard, and described shell is provided with fin, and described heat conduction backboard is close to described shell.
Outer surface and the inner surface of the shell in this radiating LED lamp lamps structure are fairing ace.
Adopt the radiating LED lamp lamps structure of this structure, utilize hot-air naturally expand rise ground feature, by near the free convection of cold and hot air LED chip, realize the heat radiation for LED chip, without too much fin is set, thereby reduce the size of lamp outer casing, reduce the manufacturing cost of light fixture, avoid the wasting of resources; Lamp surface has all adopted airflow design, surface adopts advanced spraying coating process to make dust dirt be difficult for attached staying, also be more easily washed, thereby the problem of having avoided shell fin and having piled up dirt above heat-conducting plate ensures that light fixture has the effect that continues heat radiation.
Brief description of the drawings
Fig. 1 is the schematic diagram of the first embodiment (floodlight) of LED light fixture of the present utility model.
Fig. 2 is the schematic diagram of the second embodiment (bulkhead lamp capable) of LED light fixture of the present utility model.
Fig. 3 is the schematic diagram of the third embodiment (street lamp) of LED light fixture of the present utility model.
Fig. 4 is the schematic diagram of the 4th kind of embodiment (bulkhead lamp capable) of LED light fixture of the present utility model
Fig. 5 is the schematic diagram of the 5th kind of embodiment (street lamp) of LED light fixture of the present utility model.
Fig. 6 is the schematic diagram of the 6th kind of embodiment (bulkhead lamp capable) of LED light fixture of the present utility model.
Number in the figure is described as follows:
1 lamp main body
2 air outlets
3 air inlets
Detailed description of the invention
In order more clearly to understand technology contents of the present utility model, describe in detail especially exemplified by following examples.
In Fig. 1 to Fig. 6, the direction of arrow in accompanying drawing is the flow direction of air.This radiating LED lamp lamps structure, comprise lamp main body 1 and LED chip, LED chip is arranged in the internal cavity of lamp main body 1, it is characterized in that, LED chip is communicated with outside air, and the arranged outside of LED chip has air port, and air port comprises air inlet 3 and air outlet 2, outside air is communicated in LED chip by air inlet 3, and this LED chip is communicated with outside air by air outlet 2.
LED chip can be strip source.Air inlet 3 is arranged at a side of LED chip, and air outlet 2 is arranged at the opposite side of LED chip.
LED chip can be annular light source.Air inlet 3 and air outlet 2 are around the periphery that is arranged at LED chip, and air inlet 3 is arranged at the below of air outlet 2.
Fitting structure also comprises shell and heat conduction backboard, and shell is provided with fin, and heat conduction backboard is close to shell.Outer surface and the inner surface of shell are fairing ace, inside has gone out LED chip cavity part, and all the other can reach ventilation effect, the advanced spraying coating process in surface makes that dust dirt etc. is more difficult is stayed by attached, also the air more easily being circulated washes away, thereby has avoided affecting because of the dirt that shell fin and heat conduction backboard are piled up the radiating effect of light fixture above.
At LED chip adstante febre, in light fixture, place's light-source chamber is packing less, in the time that lamp temperatures raises, Inside Air Temperature increases, and volumetric expansion has utilized hot-air to the physical principle rising, hot air to be discharged by air outlet 2, in order to fill the hot-air of loss, thereby cold air can nature enters air inlet 3 and enters light fixture below, be so also just naturally first the effect of inner air and outer air convection current, realize most economical self heat dissipation function.
Embodiment mono-
Refer to Fig. 1, this LED light fixture belongs to a floodlight, be generally used for indoor, air inlet 3 and air outlet 2 lay respectively at the both sides of light fixture, and when LED chip adstante febre, hot-air expands and naturally overflows from the air outlet 2 near LED chip one side, in order to fill the control of loss, cold air is entered by air inlet 3 naturally, by the heat of naturally taking away LED chip with the effusion of hot-air that enters of cold air, realizes the function of heat radiation.
Embodiment bis-
Refer to Fig. 2, this LED light fixture belongs to a bulkhead lamp capable, be generally used for open air, as seen from Figure 2, air inlet 3 and air outlet 2 are all surrounded on light fixture entirety, in figure, air inlet 3 is arranged at the bottom of air outlet 2, and when LED chip adstante febre, hot-air is upwards discharged, cold air by lower from fill, thereby LED chip is dispelled the heat.
Embodiment tri-
Refer to Fig. 3, this LED light fixture belongs to a road etc., be generally used for open air, this figure is the side view of street lamp, and the light-emitting area of the street lamp in this figure arranges downwards, and air inlet 3 is arranged at the below of air outlet 2, when LED chip adstante febre, hot-air is upwards discharged, cold air by lower from fill, thereby LED chip is dispelled the heat.
Adopt the radiating LED lamp lamps structure of this structure, utilize hot-air naturally expand rise ground feature, by near the free convection of cold and hot air LED chip, realize the heat radiation for LED chip, without too much fin is set, thereby reduce the size of lamp outer casing, reduce the manufacturing cost of light fixture, avoid the wasting of resources; Lamp surface has all adopted airflow design, surface adopts advanced spraying coating process to make dust dirt be difficult for attached staying, also be more easily washed, thereby the problem of having avoided shell fin and having piled up dirt above heat-conducting plate ensures that light fixture has the effect that continues heat radiation.
In this description, the utility model is described with reference to its specific embodiment.But, still can make various amendments and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, description and accompanying drawing are regarded in an illustrative, rather than a restrictive.