CN203595019U

CN203595019U - Light condensation and heat dissipation type LED lamp

Info

Publication number: CN203595019U
Application number: CN201320808752.1U
Authority: CN
Inventors: 朱浩松
Original assignee: Chongqing Liangkang Photoelectric Science & Technology Co Ltd
Current assignee: Chongqing Liangkang Photoelectric Science & Technology Co Ltd
Priority date: 2013-12-11
Filing date: 2013-12-11
Publication date: 2014-05-14
Anticipated expiration: 2023-12-11

Abstract

A light condensation and heat dissipation type LED lamp comprises an LED light source device and a lampshade. The LED light source device is composed of an LED chip, an LED base, a heat conduction pillar, an aluminum substrate, silicone and a heat dissipation plate. The lampshade is composed of cooling fins, a conical side face lens and a conical front face lens. The light condensation and heat dissipation type LED lamp has the advantages that the heat dissipation problems are considered not only in the respect of the structure and the material of a base of the LED lamp but also in the respect of the lenses, through arrangement of the conical front face lens and the conical side face lens, refracted light cannot return to the chip or the base, and thus the pressure of temperature rise of the chip and the base can be reduced; the heat dissipation area is enlarged, refracted light generated by the lenses cannot return to the chip and the base through light condensation, and thus the heat dissipation effect is improved; the LED lamp is simple in structure, low in cost and suitable for being popularized on a large scale.

Description

Optically focused radiation type LED lamp fixture

Technical field

The utility model belongs to LED technical field of lamps, particularly a kind of optically focused radiation type LED lamp fixture.

Background technology

The same with other light source, semiconductor light emitting diode (LED) also can produce heat during operation, and how much it depends on overall luminous efficiency.Power up outside under energy, the radiation recombination generation electroluminescent in electronics and hole, near the light radiating PN junction also needs just can arrive at the external world through the semiconductor medium of chip itself and encapsulation medium.Comprehensive electric current injection efficiency, radioluminescence quantum efficiency, chip exterior light take out efficiency etc., and finally probably only having the input electric energy conversion of 30-40% is luminous energy, and the energy of all the other 60-70% mainly transforms heat energy with the form of the lattice vibration of non-radiative compound generation.

In general, whether the work of LED lamp is stable, quality quality, and most important with lamp body heat radiation itself, the heat radiation of the high-brightness LED lamp on market, usually adopts natural heat dissipation, and effect is unsatisfactory.The LED light fixture that LED light source is made, is made up of LED, radiator structure, driver, lens, and therefore heat radiation is also a part and parcel, and its luminous efficiency declines along with the rising of environment temperature, so the heat radiation of LED is extremely important; The efficiency of power supply is high, and its dissipation power is little, just little in light fixture internal heat generation amount, has also just reduced the temperature rise of light fixture, can delay the light decay of LED; If LED can not finely dispel the heat, its life-span also can be influenced.

At present, the heat dissipating method of LED is mainly considered from the structure and material of lamp socket, generally adopts aluminium radiating fin to increase area of dissipation as a part for shell; Heat-conducting plastic shell, uses LED insulating radiation plastics substitution of Al alloy to make radiator; Surface emissivity radiating treatment, smears heat loss through radiation paint, and heat is taken away to lamp housing surface with radiation mode; Air fluid mechanics, utilizes lamp housing profile, produces convection current air; Fan, inner with long-service life high-efficiency fan reinforcement heat radiation at lamp housing; Heat pipe, is transmitted to shell radiating fin by heat by LED chip; Liquid ball bubble, is filled into transparency liquid higher thermal conductivity in lamp body ball bubble; Utilize lamp holder, as screw socket, have the lamp holder heat radiation of larger metal surface; These methods are each has something to recommend him, can both solve some problems, but have limitation.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of not only from the viewpoint of the structure and material heat dissipation problem of the base of LED light fixture, also consider heat dissipation problem from the angle of lens, not only increasing heat radiation area, also pass through collected light, the reflection ray that lens are produced is not got back on chip and pedestal, to comprehensively improve radiating efficiency.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is a kind of optically focused radiation type LED lamp fixture, comprise LED light source device and lampshade, it is characterized in that described LED light source device is made up of LED chip, LED pedestal, heating column, aluminium base, silica gel and heat sink, wherein LED chip is arranged on heating column, heating column is arranged in LED pedestal, and heating column and LED pedestal are jointly bonding by silica gel and aluminium base, and aluminium base is bonding by silica gel and heat sink; Described lampshade is made up of fin, tapered side lens and taper front lens, wherein tapered side lens are arranged on LED pedestal, fin from periphery be close to parcel tapered side lens part being arranged on LED pedestal, taper front lens are arranged on the dead ahead of LED chip and are connected with tapered side lens.

When use, first the heat on lamp socket is transmitted on aluminium base, and the heat on aluminium base can be transmitted on heat sink and distribute by extraneous air-flow through silica gel again; The light major part that chip sends is simultaneously launched by taper front lens and tapered side lens, and a small amount of light can reflect, and the light of reflection can not got back on chip or pedestal like this, can reduce the pressure that temperature rise appears in chip and pedestal; And existing lens are generally round lens, reflection ray can be mapped on chip or pedestal, can aggravate temperature rise effect.

The beneficial effects of the utility model are structure and material heat dissipation problems from the viewpoint of the base of LED light fixture not only, also consider heat dissipation problem from the angle of lens, by taper front lens and tapered side lens are set, can make the light that reflection occurs not get back on chip or pedestal, can reduce like this pressure that temperature rise appears in chip and pedestal; So not only increasing heat radiation area, also by collected light, the reflection ray that lens are produced is not got back on chip and pedestal, has improved radiating effect; The utility model is simple in structure, with low cost, is applicable to large-scale popularization.

Accompanying drawing explanation

Fig. 1 is the cross-sectional view of longitudinal tangent plane of the present utility model.

In figure: 1.LED light supply apparatus, 2. lampshade, 3.LED chip, 4.LED pedestal, 5. heating column, 6. aluminium base, 7. silica gel, 8. heat sink, 9. fin, 10. tapered side lens, 11. taper front lens.

The specific embodiment

Below in conjunction with embodiment, the utility model is described in further detail.

As shown in the figure, make optically focused radiation type LED lamp fixture, first make LED light source device 1, LED light source device 1 is made up of LED chip 3, LED pedestal 4, heating column 5, aluminium base 6, silica gel 7 and heat sink 8, LED chip wherein 3 is arranged on heating column 5, heating column 5 is arranged in LED pedestal 4, and by common bonding by silica gel 7 and aluminium base 6 to heating column 5 and LED pedestal 4, aluminium base 6 is bonding by silica gel 7 and heat sink 8; Lampshade 2 is installed again, lampshade 2 is made up of fin 9, tapered side lens 10 and taper front lens 11, wherein tapered side lens 10 are arranged on LED pedestal 4, by fin 9 from periphery be close to parcel tapered side lens 10 part being arranged on LED pedestal 4, taper front lens 11 are arranged on to the dead ahead of LED chip 3 and are connected with tapered side lens 11; So, made the utility model optically focused radiation type LED lamp fixture.

When use, first the heat on lamp socket 4 is transmitted on aluminium base 6, and the heat on aluminium base 6 can be transmitted on heat sink 8 and distribute by extraneous air-flow through silica gel 7 again; The light major part that chip 3 sends is simultaneously launched by taper front lens 11 and tapered side lens 10, a small amount of light can reflect, the light of reflection can not got back on chip 3 or pedestal 4, can reduce like this pressure that temperature rise appears in chip 3 and pedestal 4.

Claims

1. optically focused radiation type LED lamp fixture, comprise LED light source device (1) and lampshade (2), it is characterized in that described LED light source device (1) is made up of LED chip (3), LED pedestal (4), heating column (5), aluminium base (6), silica gel (7) and heat sink (8), wherein LED chip (3) is arranged on heating column (5), heating column (5) is arranged in LED pedestal (4), heating column (5) and LED pedestal (4) are jointly bonding by silica gel (7) and aluminium base (6), and aluminium base (6) is bonding by silica gel (7) and heat sink (8); Described lampshade (2) is made up of fin (9), tapered side lens (10) and taper front lens (11), wherein tapered side lens (10) are arranged on LED pedestal (4), fin (9) from periphery be close to parcel tapered side lens (10) part to be arranged on LED pedestal (4) upper, taper front lens (11) are arranged on the dead ahead of LED chip (3) and are connected with tapered side lens (10).