A kind of LED lamp
Technical field
The utility model relates to a kind of ligthing paraphernalia, particularly a kind of LED lamp.
Background technology
Along with the continuous development of LED technology, LED not only is applied to special lighting fields such as indicator lamp, backlight, and begins to be widely used in various general lightings field as the substitute products of incandescent lamp, electricity-saving lamp.The LED light fixture has long, advantages such as light efficiency is high, radiationless, shock resistance and low-power consumption of life-span, belongs to energy-conservation environmental protection illumination, therefore is that the LED lamp of light source also continues to bring out with LED.But, no matter be led light sources such as LED bulb or LED luminescence chip, its caloric value is all very big, and heat radiation becomes a problem that must solve of LED light fixture.LED bulb used in everyday, volume is less, and led light source is encapsulated in the lampshade, dispels the heat by the radiator that is arranged on the light source below, and radiating effect is relatively poor, can not make more powerful bulb.Existing a kind of LED bulb with unique texture is made up of lampshade, radiator, led light source, reflection shield, power supply, lamp socket, is characterized in that bulb is provided with a plurality of light-emitting zones; Light-emitting zone is made up of the independent radiator on the radiator, the reflection shield that is arranged on the led light source on the radiator and is arranged on radiator surface; But, being arranged on reflection shield on the spreader surface in the said structure, package assembly is complicated; And be unfavorable for distributing of heat, influence the life-span and the light efficiency of light fixture.
The utility model content
In order to overcome above-mentioned technical problem, the purpose of the utility model is to provide a kind of radiator and the incorporate LED lamp of reflection shield, reduces accessory, simplified structure, and helps heat radiation.
The technical scheme that the utility model adopted mainly is:
A kind of LED lamp; Comprise lampshade, radiator, led light source, driver, lamp socket, lamp holder; Said radiator is one-body molded; Radiator comprises the hollow radiator, from the upwardly extending solid radiator of hollow radiator, from the outward extending fin of solid radiator, with reflector layer, said led light source is arranged on the fin or is arranged on the solid radiator between the adjacent fin on the solid radiator of said radiator and/or the fin outer surface; Said lampshade is fixed on and covers led light source on the radiator; The openend of said hollow radiator is connected with lamp socket and surrounds a cavity, and said driver places in this cavity and with lamp holder and is electrically connected, and lamp holder is fixed on the lamp socket.
As the further improvement of technique scheme, on the said radiator in the upper end of led light source or lower end or upper and lower side be provided with the boss of arc, said boss is between adjacent fin, the boss outer surface is with reflector layer.Being provided with of boss is beneficial to the adjustment lighting angle in suitable scope.
Further improvement as technique scheme; Said reflector layer is the metal reflective layer of processing at surface spray or the aluminum or aluminum alloy that is coated with or plates, and the metal reflective layer is the radiating effect that fin and boss can not influence radiator when bringing higher reflecting rate.
Further improvement as technique scheme; Said radiator is provided with to the recessed reflector layer with fin and boss and cooperates the directed installed surface that forms secondary light-distribution; Led light source shines the reflector layer of fin or boss; Reflect away through reflector layer, this just forms a kind of secondary light-distribution design, makes illumination be mapped to the better effects if of Crystal lamp again.
Preferably; Said solid radiator is provided with groove; It is inner that said groove lower end is communicated with the hollow radiator, and said led light source is fixed on the aluminium base, and said aluminium base is installed in the groove; It is inner that the lower end of aluminium base extend into the hollow radiator, and the wire bonds of drawing from driver is connected with led light source in the aluminium base lower end.The setting of groove makes led light source and installed surface smooth, makes the integral body of LED lamp more attractive in appearance.
Another preferred version, direct etching has wiring board on the said radiator, and said led light source is fixing in the circuit board.Wiring board directly is etched on the radiator, has reduced the lower thermal conductive silicon glue-line of aluminium base and thermal conductivity factor, has both saved material, has improved the integral heat sink coefficient of led light source again, optimizes radiating effect.
As the further improvement of technique scheme, led light source is obliquely installed on radiator, and led light source and vertical plane are certain oblique irradiation down in angle of inclination, make the whole LED lamp can carry out 80 ~ 180 ° extensive angle irradiation downwards.
Further improvement as technique scheme; Be fixed with one or more lampshade on the said radiator; This lampshade can be a bigger lampshade that the first half of radiator is all covered, and this lampshade can also be that several are installed in the less lampshade between the fin; Said lampshade lower end can be adopted bonding or spiral connects or the mode of clamping is fixed on the radiator, and the top of said lampshade top and radiator is provided with the buckle structure that is complementary, and the top of lampshade top and radiator is connected fixing through this buckle structure.
As the further improvement of technique scheme, said lamp socket is provided with louvre, and cavity inside and outside formation convection current that lamp socket and radiator are surrounded are further optimized radiating effect.
The beneficial effect of the utility model is: the LED modulated structure of the utility model is novel unique, is wholely set on the radiator not only to be used to dispel the heat but also be used for the fin that reflection source light improves illuminating effect, and led light source is directly installed on the radiator; Make radiator not only as the radiator of light source but also as the refractive body of light source; Under the prerequisite that does not influence light efficiency, simplified the structure of bulb, light source is directly installed on the radiator, helps dispelling the heat; One-body molded hollow radiator, solid radiator, the fin of being provided with on the radiator; Strengthen heat conduction efficiency, increase the area of radiator, improve radiating efficiency.The LED lamp of the utility model has been optimized the effect of heat radiation, has simplified the overall structure and the production and assembly technology of bulb, has alleviated the weight of bulb, has reduced production cost, and this product is attractive in appearance simultaneously, and is practical, also is suitable for large batch of production.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.
Fig. 1 is the exploded perspective view of the utility model first embodiment;
Fig. 2 is the structural representation (removing lampshade) after first embodiment assembling;
Fig. 3 is the structural representation of the radiator of first embodiment;
Fig. 4 is the vertical view of radiator;
Fig. 5 is the structural representation (removing lampshade) of the utility model second embodiment;
Fig. 6 is the structural representation of the radiator of second embodiment;
Fig. 7 is the heat spreader structures sketch map of the utility model the 3rd embodiment;
Fig. 8 is the structural representation (removing lampshade) of the utility model the 4th embodiment;
Fig. 9 is the structural representation of the lampshade of the utility model.
Among the figure 1, lampshade, 2, radiator, 3, led light source, 4, driver; 5, lamp socket, 6, lamp holder, 11, the buckle post, 21, the hollow radiator; 22, solid radiator, 23, fin, 24, boss, 25, groove; 26, slotted eye, 27, the screens groove, 31, aluminium base, 32 wiring boards.
The specific embodiment
A kind of LED lamp of the utility model; Comprise lampshade 1, radiator 2, led light source 3, driver 4, lamp socket 5, lamp holder 6; Radiator 2 lower ends are hollow radiator 21, and hollow radiator 21 has extended upward solid radiator 22, and solid radiator 22 is outward extended with multi-disc fin 23; Said hollow radiator 21, solid radiator 22, fin 23 are one-body molded; Solid radiator 22 and/or fin 23 outer surfaces spray or are coated with or are coated with reflector layer, and preferred, said reflector layer is the metal reflective layer that aluminum or aluminum alloy is processed; Led light source 3 is arranged on the fin 23 or is arranged on the solid radiator 22 between the adjacent fin 23; Lampshade 1 is fixed on and covers led light source 3 on the radiator 2; The openend of hollow radiator 21 is connected with lamp socket 5 and surrounds a cavity; Driver 4 places in this cavity and with lamp holder 6 and is electrically connected, and lamp holder 6 is fixed on the lamp socket 5.
Referring to figs. 1 through Fig. 4; First embodiment of the utility model; Wherein said led light source 3 is provided with four, is evenly distributed on the four direction of solid radiator 22 upper surfaces, has been wholely set four fin 23 on the solid radiator 22; Fin 23 is arranged alternately with led light source 3, makes the both sides of each led light source 3 all be provided with fin 23; All be provided with the boss 24 of arc on the radiator 2 at the upper and lower side of led light source 3, boss 24 can be one-body molded with radiator 2, also can be connected on the radiator 2 for external; Form recessed installed surface between boss 24 and the fin 23; Led light source 3 is arranged on this installed surface, and fin 23 is provided with reflector layer with boss 24 surfaces, and fin 23 is formed the reflective surface that is used for reflection source light with boss 24; Led light source 3 shines the reflector layer of fin 23 or boss 24; Reflect away through reflector layer, this just forms a kind of secondary light-distribution design, makes illumination be mapped to the better effects if of Crystal lamp again.Simultaneously; Solid radiator 22 is provided with the groove 25 that is used to install led light source 3, and groove 25 is positioned on the installed surface that fin 23 and boss 24 surround, and said led light source 3 is fixed on the aluminium base 31; Aluminium base 31 is installed in the groove 25; The lower end of aluminium base 31 extend in the boss 24 of groove 25 belows, and gets into hollow radiator 21 inside through boss 24, and the wire bonds of drawing from driver 4 is connected with led light source 3 in aluminium base 31 lower ends.The setting of groove 25 makes led light source 3 and installed surface smooth, and the boss 24 of below capable of using covers the circuit of light source assembly scolding tin simultaneously, makes the integral body of LED lamp more attractive in appearance.
Boss 24 can also be arranged on the upper end or the lower end of led light source 3 separately; With reference to Fig. 5, Fig. 6; Second embodiment of the utility model; The difference of this embodiment and first embodiment is that its boss 24 is arranged on the upper end of led light source 3 separately, and the part light that makes progress that light source is sent reflexes to the below.
With reference to Fig. 7, as the 3rd embodiment of the utility model, said led light source 3 can also not adopt aluminium base 31 and be set directly on the radiator 2.Direct etching has wiring board 32 on the radiator 2, and led light source 3 is fixed on the wiring board 32.Wiring board 32 directly is etched on the radiator 2, has reduced aluminium base 31 and the lower thermal conductive silicon glue-line of thermal conductivity factor, has both saved material, has improved the integral heat sink coefficient of led light source 3 again, optimizes radiating effect.In addition, led light source 3 can also be installed on the fin 23.
Because the design's normally downward being installed on the Crystal lamp of lamp holder of LED lamp, the light that light source sends downwards main and to around shine, with reference to Fig. 8; As the design's the 4th embodiment, the difference of this embodiment and first embodiment is that solid radiator 22 is provided with the light source installed surface that becomes the angle of inclination with vertical plane; Led light source 3 is arranged on the light source installed surface of solid radiator 22 through aluminium base; Led light source 3 becomes the angle of inclination of 1 to 60 degree with vertical plane, preferably adopt the angle of 15 to 30 degree, and the light that light source sends mainly is oblique irradiation down; Can carry out 80 ~ 180 ° extensive angle irradiation downwards, be fit to more be applied on the Crystal lamp.
Further, with reference to Fig. 9, the lampshade 1 of the LED lamp in the foregoing description can be one or more.Lampshade 1 can be set to one and solid radiator 22, radiator 23 and the led light source 3 that is installed on the radiator 2 all covered; Lampshade 1 can also be combined by a plurality of little lampshades that are installed on the radiator 2, and each little lampshade covers two led light sources 3 between the fin 23.Lampshade 1 lower end can be adopted bonding or spiral connects or the mode of clamping is fixed on the radiator 2; As below lower convex platform 24, being provided with the screens groove 27 that is used for buckle lampshade 1; Lampshade 1 lower end can be equipped with fixture block, and fixture block and screens groove 27 are fixedly connected; The top of lampshade 1 is provided with buckle post 11, and the buckle post 11 of the corresponding lampshade 1 in the top of radiator 2 is provided with the slotted eye 24 that is used for holding, and lampshade 1 is connected fixing in slotted eye 24 with radiator 2 through 11 holdings of buckle post; The top of lampshade 1 can also adopt bonding mode to be fixed on radiator 2 tops.Lampshade 1 is not limited to above-mentioned description with the connected mode of radiator 2, can also adopt other mode to realize.
Further, said lamp socket 5 is provided with louvre 50, and lamp socket 5 forms convection current through louvre 50 with the external world with the cavity that hollow radiator 21 surrounds, and further optimizes radiating effect.
The radiator 2 of the LED lamp of the utility model is formed in one, and helps the heat conduction, also is provided with hollow radiator 21, solid radiator 22 and fin 23 on the radiator 2, strengthens heat conduction efficiency, increases the area of radiator, optimizes radiating effect.Fin 23 surface spray or be coated with or be coated with the reflector layer of processing by the high reflecting rate material; Not only be used for heat radiation but also be used for reflection source light improving illuminating effect; Make radiator 2 not only as the radiator of light source but also as the refractive body of light source; Reduce the structure of reflection shield, under the prerequisite that does not influence light efficiency, simplified the structure of bulb, alleviated the weight of lamp body.
The product structure of the utility model is unique novel, and whole artistry is good, good looking appearance, and also heat dispersion further optimized, and can be used for high-power LED lamp, and practical.The accessory of the LED lamp of the utility model is less, has simplified production and assembly technology, has reduced production cost, is suitable for large batch of production.
The above is merely the preferential embodiment of the utility model, as long as realize that with basic identical means the technical scheme of the utility model purpose all belongs within the protection domain of the utility model.