CN102606897A

CN102606897A - Light emitting diode (LED) lamp

Info

Publication number: CN102606897A
Application number: CN2011100262725A
Authority: CN
Inventors: 李翘英
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-25
Filing date: 2011-01-25
Publication date: 2012-07-25

Abstract

The invention discloses a light emitting diode (LED) lamp, which comprises a lamp holder plastic part, an aluminum substrate radiator, a driver, an LED light source, and a light source lens. The plastic part is arranged at the bottom of the substrate radiator. The driver is fixed in the substrate radiator and the plastic part. The LED light source is arranged on the substrate radiator, and is electrically connected with the driver. Light beams generated by the light source after electrifying is converged and refracted through the light source lens. In the invention, the aluminum substrate radiator is a heat dissipation structure formed by an aluminum substrate and a plurality of heat dissipation fins, which reduces heat resistivity of the radiator, and simultaneously lowers the consumption of aluminum raw material due to simple structure, to really achieve effects of energy saving and environmental friendliness.

Description

A kind of LED lamp

Technical field

The invention belongs to lighting field, particularly a kind of LED light fixture of simplified structure.

Background technology

Common LED lamp comprises working of plastics, driver, radiator and is located at aluminium base, led light source, the lens in the radiator at present.Working of plastics is positioned at the radiator bottom; Radiator is generally bowl-shape, and aluminium base is fixed in the accommodation space of radiator, and led light source is fixed on the aluminium base; And electrically connect with driver; Lens are located at the opening part of radiator, shine out after the light that led light source is sent converges, to improve brightness of illumination.

Well-known LED lamp is wanted in actual the use, and caloric value is very high, influences the service life of led light source, therefore how to solve heat dissipation problem, is the research direction that industry is paid close attention to.In order to increase area of dissipation; Radiator generally all utilizes aluminium section bar integrated; Though this structure can improve heat radiation to a certain extent; But fin is that aluminium extrusion is one-body molded on this structure and since the processing technology of aluminium extrusion restricted due to the surface area of fin reached the upper limit of technology, radiating efficiency is difficult to have raising again; In addition since aluminium base and radiator by two independently individuality combine through screw; Produce great thermal resistance because of independent groups credit union between the two; Thereby greatly reduce the radiating effect of radiator, influence the service life of led light source, moreover because aluminium raw material application quantity height due to the technology of aluminium base and aluminium extrusion radiator; Production cost is expensive, thus the greatly development of degree obstruction LED illumination cause.

Summary of the invention

Main purpose of the present invention: be to provide a kind of LED light fixture, it is simple in structure, and physical quality is light, and radiating efficiency is high, and is easy to assembly, reduces production costs.

Secondary objective of the present invention: be to provide a kind of LED light fixture, its emphasis is combined into one the substrate heat spreader structures at aluminium base and radiating fin, reduces thermal resistivity greatly, improves radiating efficiency, prolongs LED service life.

A purpose more of the present invention: be to provide a kind of LED light fixture, its emphasis is in aluminium base and radiating fin composite set structure, and substrate radiator and cover plate composite set structure, and its assembling is simple, and assembling back structure is fastening.

Another purpose of the present invention: be to provide a kind of LED light fixture, the air vent device that its emphasis is provided with on radiator fins, and this aperture apparatus is that each misplace between fin at interval and sets up, structure assembling back forms the convection current air channel that interlocks, and ventilation by forced draft is effective.

For reaching above-mentioned purpose, the concrete scheme of the present invention is following:

A kind of LED fitting structure; Comprise lamp cap plastic parts, aluminum substrate radiator, driver and led light source and light lens; Working of plastics is positioned at the bottom of substrate radiator; Driver is fixed in substrate radiator and the working of plastics, and led light source is located on the substrate radiator, and electrically is connected with driver; The light beam that energising back light source produces reflects away with polymerization through light lens, and said substrate radiator is placed with the fin of plurality of single moulding.

Above-mentioned some led light sources are assembled on the substrate radiator.

The aforesaid substrate radiator is to form a circle draw-in groove by the aluminium base periphery, and each fin places draw-in groove to combine.

Above-mentioned fin is plugged in the side and the back side of aluminium base.

All offer through hole on the above-mentioned fin, and the through hole mutual dislocation is set up on each interval fin.

A cover plate is also detained in the top of above-mentioned all fins, and corresponding each fin of this cover plate is provided with fixture.

The opening part of above-mentioned lampshade also is provided with and can converges the lens that led light source emits beam.

After adopting such scheme, the present invention has following improvement.

(1) changing now, radiator separates molding structure with aluminium base; With aluminium base and the fin formula substrate radiator that is combined into one; Thereby the reduction thermal resistivity reduces the raw-material use amount of aluminium again significantly when improving radiating efficiency, realize the effect of energy-saving low-carbon.

(2) change existing radiator fins integrated formed structure, and, be fixed in the outside of aluminium base again, thereby can the structure of fin self be improved, overcome in the present structure because of the one-body molded radiator structure that can't realize with the independent moulding of fin.

(3) on fin, offer earlier through hole, and then fin is arranged in the lampshade outside, the dislocation through hole between the adjacent fin forms staggered air channel, and air is staggered flowing in this air channel, thereby improves radiating efficiency.

Description of drawings

Fig. 1 is a perspective exploded view of the present invention.

Fig. 2 is an assembled view of the present invention.

Fig. 3 is a cross section view of the present invention.

Fig. 4 is the schematic perspective view that the present invention invents.

Fig. 5 is the air channel sketch map that the set hole of fin forms among the present invention.

Fig. 6 is some fins and an aluminium base combination sketch map among the present invention.

Fig. 7 is fin and an aluminium base combination part structure for amplifying sketch map among the present invention.

Fig. 8 is some fins and a cover plate combination sketch map among the present invention.

Fig. 9, Figure 10 are fin and cover plate combination part structure for amplifying sketch mapes among the present invention.

The specific embodiment

Structure of the present invention is elaborated with specific embodiment below in conjunction with accompanying drawing.

With reference to figure 1 and shown in Figure 2, a kind of LED lamp provided by the invention comprises lamp cap plastic parts 10, driver 30, substrate radiator 23, led light source 50, light lens 60 and cover plate 70.Be the bowl structure of semicircular ball by radiating fin 20 and aluminium base 40 and the integral type substrate radiator of forming 23; Inside has the accommodation space of hollow; Working of plastics 10 is positioned at the bottom of basic radiator 23: driver 30 is positioned at the accommodation space of working of plastics 10, and led light source 5 is fixed on substrate radiator 23 tops, and electrically connects with driver 30; Luminous under the control of driver 30, light beam scioptics 60 polymerizations of being sent reflect the outside.

As with reference to shown in Figure 7: integral type substrate radiator 23 is that the outboard row by aluminium base 40 is furnished with some radiating fins 20; And fin 20 is to push with aluminium base 40 after the independent moulding to combine again; In the present embodiment, fin 20 is the outsides that are plugged on aluminium base 40, specifically can be with reference to shown in Figure 6; All sides of aluminium base 40 form a circle draw-in groove 41; Each fin 20 places draw-in groove 41, and through the device 42 that press equipment extruded aluminium substrate 40 produces, device 42 extruding draw-in grooves 41 make itself and fin 20 tight seamless combining.

Top with reference to all fins 20 shown in Figure 8 is provided with protuberance 22 in addition, establishes a cover plate 70 with its button, and corresponding respectively each fin protuberance 22 is provided with press fit device 71 that can supply fin protuberance 22 location and the jack 72 that inserts on this cover plate 70; After fin protuberance 22 places cover plate location press fit device 71 and jack 72, through press equipment extruding press fit device 71 tips and jack 72 peripheries; The former is being pressed together on the fin protuberance 22 in the tip through extruding press fit device 71, and the firm fin protuberance 22 of withholding specifically can be with reference to shown in Figure 9; The latter shrinks jack 72 internal diameters rapidly through extruding, on the fin protuberance 22 of combining closely, and specifically can be with reference to shown in Figure 10.After accomplishing interference fit pressing assembling, cover plate 70 presses solidly cooperation through

jack

72 and 71 pairs of substrate radiators 23 of press fit device, can strengthen substrate radiator 23 bulk strengths.

All fin 20 Shang Zhuo are provided with air vent 21 in addition; And the air vent 21 on each interval fin 20 all is that dislocation is arranged, and forms compound staggered position at interval through the fin air vent after the combinations thereof 21, thereby all through holes 21 form the staggered air channel 90 of some roads acceleration circulation of air; Air flows from each ventilating duct 90 naturally; Specifically can be with reference to shown in Figure 5, effectively distributing of accelerated heat improved the radiating effect rate.

After being integral substrate radiator 23 through combinations thereof; Its bulk strength is firm, with reference to shown in Figure 9, refills some led light sources 50 to reinforce with soldering; Fill up crack between the two to add heat conductive silica gel between its led light source 50 and the substrate radiator 23, strengthen thermal conduction effect.After again led light source 50 and driver 30 being electrically connected, driver 30 is built in place, lamp cap plastic parts 10 inner spaces, adds that fixedly sizing material is fixed in lamp cap plastic parts 10 interior stickups firmly.

Reinforce with substrate radiator 23 usefulness screw closures with reference to the lamp cap plastic parts 10 with built-in drive 30 shown in Figure 3 again; At last light lens 60 is placed substrate radiator 23 tops and corresponding led light source 50 positions, lens 60 and cover plate 70 are closely pressed solidly through press device.

In sum; The present invention provides a kind of LED light fixture, and invention focuses on aluminium base 40 and the radiating fin 20 formula substrate radiator 23 that is combined into one, and this structure can reduce heat radiator thermal resistivity; Improving radiating efficiency; Because of simple in structure, reduce the raw-material use amount of aluminium again significantly simultaneously, really realize the effect of energy-saving low-carbon; And press solidly cooperation through 70 pairs of substrate radiators 23 of cover plate, can strengthen substrate radiator 23 bulk strengths.

The form of said radiating fin 20 can change various, as on fin 20, offering dislocation through hole 21 among the present invention earlier, to form staggered air channel 90, increases circulation of air, improves radiating efficiency, prolongs the life-span of led light source 5.

Above embodiment only for the technological thought of explanation the utility model, can not limit protection scope of the present invention with this, every technological thought that proposes according to the present invention, and any change of on the technical scheme basis, being done all falls into the present invention and protects within the category.

Claims

1. a LED lamp comprises lamp cap plastic parts, aluminium base radiator, light lens, driver and led light source.The one-body molded formula substrate radiator that is integrally formed of several radiating fins and aluminum substrate; Working of plastics is positioned at the bottom of substrate radiator; Driver is fixed in substrate radiator and the lamp cap plastic parts, and LED lamp source is located on the substrate radiator, and electrically is connected with driver; It is characterized in that: said integral type substrate radiator by aluminium base and several radiating fin be combined intos, and all offer through hole or special-shaped process unit on this radiating fin.

2. a kind of LED lamp as claimed in claim 1 is characterized in that: said aluminium base combines several cooling fins to form the application of integral type substrate radiator.

3. a kind of LED lamp as claimed in claim 2 is characterized in that: said aluminium base periphery forms the draw-in groove fixture in a ring week, and each fin correspondence places in the groove device.

4. a kind of LED lamp as claimed in claim 2 is characterized in that: said through hole is located at the intersection position inequality of each fin, formed staggered convection current air channel.

5. a kind of LED lamp as claimed in claim 2 is characterized in that: the top of said substrate radiator is also detained and is established a cover plate, the fixture that corresponding each fin of this cover plate is provided with.

6. a kind of LED lamp as claimed in claim 2 is characterized in that: aluminium base, fin and cover plate are combined into the substrate radiator of circle, square, polygon-shaped body; It adopts closely and presses solidly, (tin) welding and (epoxy resin) bonding fixed form.

7. a kind of LED lamp as claimed in claim 1 is characterized in that: said led light source connects with soldering and is fixed in substrate radiator top or radiator outside.

8. a kind of LED lamp as claimed in claim 1 is characterized in that: the opening of a said structure base board radiator also is provided with outward can converge the lens that led light source sends.

9. a kind of LED lamp as claimed in claim 1 is characterized in that: said driver is built in substrate radiator and place, lamp cap plastic parts inner space.