A kind of LED bulbTechnical field
The utility model relates to LED semiconductor lighting technology, and especially relating to a kind of is the bulb of light source with LED.
Background technology
Characteristics such as long service life, energy consumption are low because LED has, energy savings, therefore, LED as light source to apply to widely in the daily life, like LED lightings such as cup lamp, shot-light, auto lamp, LED bulbs.
Existing LED bulb is mainly shone etc. by lamp holder, lamp socket, driver, radiator, led light source assembly, printing opacity to be formed; Common LED bulb is to adopt reflective device to carry out luminous intensity distribution; All heats only dispel the heat through single-ended radiator; Its shortcoming is that area of dissipation is little, and power can't be done greatly, and total output light flux of bulb is low; Perhaps be integrated in led light source on the stem stem, place the cell-shell of sealing, radiating efficiency is extremely low, and the output of LED integral light is low, is difficult to satisfy vast requirement of client.
Summary of the invention
In order to address the above problem, the utility model provides a kind of high light efficiency, good heat dissipation effect, the LED bulb of novel structure.
The utility model is that the technical scheme that its technical problem of solution is adopted is:
A kind of LED bulb; Comprise a lamp holder, a lamp socket, a driver, a radiator, two or more led light source assembly and two or more diffuser; It is characterized in that: said radiator is provided with a through hole; Said driver is arranged in the through hole, and the lower end of said radiator offers some bar-shaped troughs that are communicated with through hole, and said two or more led light source inter-modules are at a distance from the upper end that is arranged on radiator; And the both sides of each led light source assembly are respectively arranged with one from the extended fin of the upper end face of radiator; Between two fin between the adjacent two led light source assemblies formation ventilation slot is set, said diffuser is arranged on the top of corresponding led light source assembly, and said driver is installed on the lamp socket and places in the through hole.
Wherein, the said radiator structure that is formed in one.
As the further improvement of such scheme, said fin extends through hole and above through hole, intersects together.
As the further improvement of such scheme, the fin of said led light source assembly both sides is the V-shape setting, and wherein V word mouth is towards bulb outer rim direction.
As the further improvement of such scheme, also be provided with the reflection shield that matches with the led light source assembly on the said radiator.
Further, said LED bulb profile is circle or candle or mushroom-shaped or olive shape.
The beneficial effect of the utility model is: the radiator of the LED bulb of the utility model is provided with the through hole that holds driver; And offer some bar-shaped troughs that are communicated with through hole in the lower end of radiator; The heat that this structure produces in the time of can making drive operation along through hole to external diffusion; Cold air can also get into through hole from bar-shaped trough, and then forms convection current, the diffusion of accelerated heat; In addition, the led light source inter-module is at a distance from the upper end that is arranged on radiator, and the both sides of each led light source assembly are provided with a fin respectively; This design increases heat-dissipating space through the light source luminescent district at bulb; The heat radiation and the luminous two-part structure of bulb of bulb are organically integrated, not only well solved the problem that LED bulb volume is little, heat-dissipating space is not enough, and the fin of both sides can also be used as reflective surface; The time bulb light more concentrated; Illumination effect is better, further between two fin between the adjacent two led light source assemblies, ventilation slot is set, and can make the radiating effect of bulb more remarkable.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done simple declaration in will describing embodiment below.Obviously, described accompanying drawing is a part of embodiment of the utility model, rather than whole embodiment, those skilled in the art under the prerequisite of not paying creative work, other designs and the accompanying drawing that can also obtain according to these accompanying drawings:
Fig. 1 is the decomposing schematic representation of the utility model embodiment;
Fig. 2 is the cutaway view of the utility model embodiment.
The specific embodiment
Below will combine embodiment and accompanying drawing that the technique effect of design, concrete structure and the generation of the utility model is carried out clear, intactly description, with purpose, characteristic and the effect of understanding the utility model fully.Obviously; Described embodiment is a part of embodiment of the utility model, rather than whole embodiment, based on the embodiment of the utility model; Other embodiment that those skilled in the art is obtained under the prerequisite of not paying creative work all belong to the scope that the utility model is protected.
With reference to Fig. 1, Fig. 2, a kind of LED bulb of the utility model comprises a lamp holder 1, a lamp socket 2, a driver 3, a radiator 4, two or more led light source assembly 5 and two ormore diffuser 6; Said radiator 4 is provided with a through hole 41, and said driver 3 is arranged in the through hole 41, and the heat that driver produces during work can be along this through hole 41 to external diffusion; The lower end of said radiator 4 offers some bar-shaped troughs 42 that are communicated with through hole 41, when heat along through hole 41 during to external diffusion, the air pressure in the through hole 41 reduce; Cold air will get into through holes 41 through bar-shaped trough 42 under atmospheric effect, the distributing of accelerated heat, and said two or more led light source assemblies 5 are arranged on the upper end of radiator 4 at interval; And the both sides of each led light source assembly 5 are respectively arranged with one from the extendedfin 43 of the upper end face of radiator 4; Can divide source of heat release but led light source assembly 5 is provided with at interval, the heat that led light source assembly 5 produces not only can distribute through bottom, radiator 4 upper ends, can also be diffused in the air throughfin 43; Increase area of dissipation; Thisfin 43 is the V-shape setting, and wherein V word mouth is towards bulb outer rim direction, and this design can make fin 43 play the effect of reflective surface; Can see through lampshade after making light through reflection sends; Be provided with between twofin 43 between the adjacent two led light source assemblies 5 and form ventilation slot 44, cold air flows through ventilation slot 44 can take away heat, makes the light fixture radiating effect better; Saiddiffuser 6 is arranged on the top of corresponding led light source assembly 5 and covers corresponding led light source assembly 5 and whole zone that thefin 43 of these led light source assembly 5 both sides is surrounded, and said driver 3 is installed on the lamp socket 2 and places in the through hole 41.
Above-mentioned radiator 4 can adopt integrated formed structure, and is convenient for production, cost is low and good looking appearance.
Above-mentionedfin 43 extends through hole 41 and above through hole 41, intersects together, can make the profile of bulb more attractive in appearance.
For the luminous efficiency that makes bulb is higher, the reflection shield that matches with led light source assembly 5 can be set also on the above-mentioned radiator 4.
LED bulb profile is circle or candle or mushroom-shaped or olive shape in addition.
More than be that preferable enforcement to the utility model specifies; But the invention is not limited to said embodiment; Those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite of the utility model spirit, distortion that these are equal to or replacement all are included in the application's claim institute restricted portion.