A kind of LED illuminating lamp of bud spheric bulb
Technical field
The present invention relates to the semiconductor LED general illumination product in energy-conserving and environment-protective field, relate in particular to a kind of LED illuminating lamp of bud spheric bulb.
Background technology
Semi-conductor LED illuminating is excellent performance aspect energy-conserving and environment-protective, has wide application prospect, as solid state light emitter replace incandescent and energy-saving fluorescent lamp and become the main product of new generation of green illumination comprehensively.
At present, the electrical-optical conversion efficiency of semi-conductor LED illuminating has been brought up to unprecedented level, and the light efficiency of LED light source surpasses 130 lumens/watt, and the whole light efficiency of LED illuminating product also can reach 100 lumens/watt left and right.Nonetheless, the form consumption that still has a greater part of energy to save bit by bit with heat in the electrical-optical transfer process of LED, this heat will aggravate light decay, cause the light efficiency of LED to reduce, and have a strong impact on service life, and become a large bottleneck of the application of LED technology and development.
Although the technology such as the fin conductive heat radiation being widely adopted current and cross-ventilation heat radiation have been applied in LED illuminating product, but the conventional bulb structure that concentrated plane formula is arranged and ball steeps, candle light steeps due to LED light source device, cause heat to gather heat radiation not smooth, finally fail to solve in good condition effectively dispersing of heat.
In addition, in current LED illuminating product, because LED device more, adopt and concentrate plane formula to arrange, can not expand the beam divergence angle of LED light source, make the beam divergence angle of LED light source can only be limited in 90 °~120 °, make it versatility and be restricted, therefore can not meet the multiple demand of lighting source.
Summary of the invention
The object of the invention is in order to overcome the deficiencies in the prior art, a kind of LED illuminating lamp of bud spheric bulb is provided, it can improve heat loss through conduction usefulness to greatest extent, be beneficial to and delay light decay, improve the life-span, and scattering angle that can expanded light beam, meet the multiple demand of lighting source, can better, more briefly promote the development of LED Lighting Industry.
The technical scheme that realizes above-mentioned purpose is: a kind of LED illuminating lamp of bud spheric bulb, comprise by bottom and be hemispheric lamp housing and be connected to lamp housing lower end and be the bulb that hemispheric transparent lamp shade forms, light source integration module and the drive circuit board that is positioned at bulb, wherein:
Described illuminating lamp also comprises that one is positioned at the lampshade inner casing of offering the polygonal pyramid platform of a passage on inverted and lower surface of being of bulb; The upper end of described lampshade inner casing is connected to the lower end, lower end abutment of described lamp housing on the inner surface of described transparent lamp shade, make each conical surface of lampshade inner casing be distributed earth and be arranged in described transparent lamp shade, on each conical surface of this lampshade inner casing, offer respectively a light source hole;
The bottom of described transparent lamp shade offer one with the air inlet that passage is coaxial and shape is identical on described lampshade inner casing so that form the pneumatic convection channel connecting between the gas outlet of offering on this air inlet and described lamp housing;
The quantity of described light source integration module is identical with the conical surface quantity of described lampshade inner casing, each light source integration module comprise printed circuit board (PCB) and be connected to printed circuit board (PCB) before, LED light source on rear surface and some fin, the mode that each light source integration module is embedded in the light source hole of described lampshade inner casing with described LED light source and some fin are positioned at the inner side of the described conical surface is arranged on the conical surface of described lampshade inner casing, make the direction of radiating groove by forming between described some fin on each light source integration module identical with the direction of described pneumatic convection channel.
The LED illuminating lamp of above-mentioned bud spheric bulb, wherein, the passage of described lampshade inner casing is that extend to lower end the bottom that is opened in every rib and the long slot bore that is interconnected is the bud shape breach that a bud just ready to burst, makes described bulb be bud spherical.
The LED illuminating lamp of above-mentioned bud spheric bulb, wherein, described lampshade inner casing is the frustum of a pyramid of three to six ribs.
The LED illuminating lamp of above-mentioned bud spheric bulb, wherein, the inner surface of described transparent lamp shade is that phenanthrene is pinched your compound lens.
The LED illuminating lamp of above-mentioned bud spheric bulb, wherein, the material of the printed circuit board (PCB) in described light source integration module is aluminium base, copper base or ceramic substrate.
The LED illuminating lamp of above-mentioned bud spheric bulb, wherein, described drive circuit board is arranged on the top of described light source integration module.
The technical scheme of the LED illuminating lamp of a kind of bud spheric bulb of the present invention, from overturning conventional bulb structure, set about, fully in conjunction with the luminous formation mechanism of LED light source, with static heat loss through conduction and dynamic pneumatic heat loss through convection, combine in good condition, improve to greatest extent heat loss through conduction usefulness, be beneficial to and delay light decay, improve the life-span, and can expand the scattering angle of LED light source light beam, and meet the multiple demand of lighting source, can better, more briefly promote the development of LED Lighting Industry.
Accompanying drawing explanation
Fig. 1 is the structural representation of the LED illuminating lamp of bud spheric bulb of the present invention;
Fig. 2 is the upward view (removing transparent lamp shade) of Fig. 1.
The specific embodiment
In order to understand technical scheme of the present invention better, below by embodiment particularly and be described in detail by reference to the accompanying drawings:
The LED illuminating lamp of bud spheric bulb of the present invention, comprises bulb, is positioned at lampshade inner casing 4, light source integration module 3 and the drive circuit board 2 of bulb, wherein:
Bulb is by lamp housing 1 and be connected to being of lamp housing 1 lower end hemispheric transparent lamp shade 5 and form;
The bottom of lamp housing 1 is semi-spherical shape, makes lamp housing 1 be connected the rear globular bulb that forms with transparent lamp shade 5; The top of lamp housing 1 has bulb socket 11; On lamp housing 1, also near on the surface of bulb socket 11, offering in uniform way a plurality of gas outlets 10;
Lampshade inner casing 4 is inverted polygonal pyramid platform, and polygonal pyramid platform can be the frustum of a pyramid of three, four, five, six ribs, depending on concrete light source power demand.The lampshade inner casing 4 of the present embodiment is pentagonal pyramid platform; The upper end of this lampshade inner casing 4 is connected to the lower end, lower end abutment of lamp housing 1 on the inner surface of transparent lamp shade 6, makes each conical surface of lampshade inner casing 4 be distributed earth and is arranged in transparent lamp shade 6; On each conical surface of this lampshade inner casing 4, offer respectively a light source hole 41 and two installing holes 42; On the lower surface of lampshade inner casing 4, offer a passage 6, this passage 6 is the bud shape breach that a bud just ready to burst for the long slot bore that is opened in the bottom of every rib and extends to lower end and be interconnected;
The inner surface of transparent lamp shade 5 adopts phenanthrene to pinch your compound lens, the bottom of transparent lamp shade 5 offer one with the air inlet that passage 6 is coaxial and shape is identical 50 on lampshade inner casing 4, make bulb be bud spherical, and make to form between the gas outlet 10 on this air inlet 50 and lamp housing 1 the pneumatic convection channel 20 of perforation;
The quantity of light source integration module 3 is identical with the conical surface quantity of lampshade inner casing 4; Each light source integration module 3 comprises printed circuit board (PCB) 32 and is connected to forward and backward lip-deep some fin 33 and the LED light source 31 of printed circuit board (PCB) 31; The material of printed circuit board (PCB) 32 is aluminium base, copper base or ceramic substrate, on printed circuit board (PCB) with the conical surface of lampshade inner casing 4 on installing hole offer accordingly some installing holes; Each light source integration module 3 is arranged on light source integration module 3 on the conical surface of lampshade inner casing 4 with inner side, the printed circuit board (PCB) 32 that LED light source 31 is embedded in light source hole 41, some fin 33 are positioned at the conical surface by the mode of screw bolt and nut, make the direction by the radiating groove forming between some fin 33 on each light source integration module 3 identical with the direction of pneumatic convection channel 20, so that light source hole 41 is sealed, behind enclosed light source hole 41, can guarantee dust and LED light source 31 isolation in pneumatic convection channel 20.
Drive circuit board 2 is arranged on the middle part of lamp housing 1 and is positioned at the top of light source integration module 3.
The LED illuminating lamp of bud spheric bulb of the present invention has following characteristics:
1. the contour structures of bulb is overturned traditional ball bubble, candle light bubble concept, by offer the air inlet 50 of a bud shape breach in the lower end of transparent lamp shade 5, form with the gas outlet 10 on lamp housing 1 the pneumatic convection channel 20 connecting, air is discharged convection current air from air inlet 50 from the gas outlet 10 near the lamp housing 1 of lamp holder, so that it is cooling that light source integration module 3 obtains sufficient dynamic air current in the course of the work, reach the maximization of pneumatic convection efficiency.
2. in bulb, increase a lampshade inner casing 4 that is polygonal pyramid platform, and on each conical surface of lampshade inner casing 4, arrange that one with the light source integration module 3 of some fin 33, make each LED light source 31 be polygonal pyramid face distributed arrangement, can reach Homogeneouslly-radiating effect, can make again some fin 33 be placed in pneumatic convection channel 20 and carry out fully pneumatic coolingly and heat is taken away, form the multi-level composite radiating effect all linked with one another of dynamically heat radiation and static heat radiation.
3. because each LED light source 31 is polygonal pyramid face distributed arrangement, then in conjunction with 4 lip-deep phenanthrene in transparent lamp shade, pinch your compound lens, make the beam divergence angle of each LED light source 31 be greater than 180 ° of evenly diffusions, can meet the multiple demand of lighting source.In addition, the LED light source 31 on each pyramidal surface is closed, because unclean environment causes LED light source 31 light transmissions, does not weaken.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.