CN203585860U - LED bulb lamp with uniform light rays - Google Patents

The utility model provides an LED bulb lamp with uniform light rays. The LED bulb lamp comprises a spiral lamp holder, a radiator, a built-in power source structure, blue-light LED chips, an LED substrate and a lamp shade, wherein the radiator is mounted on the spiral lamp holder; the built-in power source structure is arranged inside the radiator and electrically connected with the LED substrate; the LED chip is provided with a plurality of blue-light LED chips; the LED substrate is fixed to the radiator via thermal conductive adhesive; the lamp shade is screwed on the radiator, and the inside of the lamp shade is uniformly coated with fluorescent powder. By the adoption of the LED bulb lamp, the fluorescent powder can be far away from the LED chip, solve the problems of light attenuation, color temperature drift, nonuniform light spots, and low light-emitting efficiency and excitation efficiency, which are easily generated, when the fluorescent powder is at a high temperature for a long time. As long as the lamp shade coated with different proportions of fluorescent powder is replaced, the color temperature and the color rendering index of the LED bulb lamp can be changed so as to quickly meet the requirements of customers, thereby greatly reducing the stocks of LED light sources, greatly shortening the delivery cycle, and reducing the production cost.

A kind of LED bulb lamp of uniform light

Technical field

The utility model belongs to field of illuminating lamps, particularly a kind of LED bulb lamp of uniform light.

Background technology

LED light fixture is due to advantages such as its energy-saving and environmental protection, and replace incandescent and electronic energy-saving lamp, become the first-selection that novel green throws light on gradually.It also will make major contribution for promotion energy-saving and emission-reduction, resume conservation-minded society when causing illumination revolution.Existing LED bulb lamp mainly adopts the white light LEDs spot light pasters such as 5050,5630 on pcb board, or area source COB, white light LEDs is directly installed on radiator, this kind of mode is mainly by blue chip surface-coated phosphor gel, it is excited and send white light, then add outside a PC cover and assemble.The basic principle of this packing forms is to adopt blue chip excitated fluorescent powder, after being stimulated, fluorescent material launches gold-tinted, the gold-tinted that the blue light that chip sends and fluorescent material send mixes in LED package interior, finally launches the white light of experiencing on human eye physiological vision.

Above structure is the main flow structure of white light LEDs, but this packaged type exists the bad control of technique when chip surface is coated with fluorescent material of following problem 1., and production qualification rate is lower; 2. light fixture easily produces aperture and aberration, and irregular colour is even, and fluorescent material encases chip, and chip produces higher heat when work, and fluorescent material easily produces light decay and colour temperature drift under long term high temperature; The colour temperature of 3.LED lamp is determined by LED light source, change colour temperature and only have replacing LED light source, very inconvenient when producing, and could meet client's demand for the LED light source stock of a variety of colour temperature sections, has increased processing cost.

Utility model content

The bad management and control of technique while being coated with fluorescent material for solving above-mentioned prior art on LED chip surface, fluorescent material easily produces light decay and colour temperature drift at chip surface, non-uniform light, the problem that causes cost to increase in order to meet client's demand, the utility model adopts following technical scheme: a kind of LED bulb lamp of uniform light, comprise lamp screw base, radiator, built-in power structure, blue-light LED chip, LED substrate, lampshade, described radiator is arranged on lamp screw base, it is inner that described built-in power structure is arranged on described radiator, be electrically connected to LED substrate, described LED chip is provided with a plurality of blue-light LED chips, described LED substrate is fixed by heat-conducting glue and radiator, described lampshade is screwed on radiator, described lampshade inner side is with the fluorescent material being evenly coated with.

The beneficial effects of the utility model are: fluorescent material is uniformly coated on lampshade inner side, reach the LED bulb lamp of different-colour and colour rendering index, the utility model makes fluorescent material away from LED chip, solve fluorescent material and at high temperature easily produced for a long time light decay and colour temperature drift, hot spot is inhomogeneous, the problem that light extraction efficiency and launching efficiency are low, owing to scribbling uniform fluorescent material in lampshade, as long as change the fluorescent material lampshade of coating different proportion, just can change the colour temperature and development index of LED bulb lamp to reach fast client's requirement, thereby greatly reduce the quantity in stock of LED light source, greatly shortened the delivery cycle, reduced production cost.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of embodiment of the utility model.

Fig. 2 is the cut-away view of the utility model lampshade.

Fig. 3 is the internal structure partial enlarged drawing of the utility model lampshade.

The specific embodiment

Below in conjunction with accompanying drawing, describe preferred embodiment of the present utility model in detail.

Refer to Fig. 1, Fig. 2, Fig. 3, a kind of LED bulb lamp of uniform light, comprise lamp screw base 1, radiator 2, built-in power structure, blue-light LED chip 3, LED substrate 4, lampshade 5, described radiator is arranged on lamp screw base, described built-in power structure is positioned at the inside of radiator, be electrically connected to LED substrate, described LED chip is provided with a plurality of blue-light LED chips, described LED substrate is fixed by heat-conducting glue and radiator, LED substrate adopts lithium substrate, can play good heat transfer thermolysis, described lampshade is screwed on radiator, lampshade can be taken off easily freely and change, described lampshade inner side is with the fluorescent material 6 being evenly coated with, according to the difference of blue-light LED chip wavelength, mix the fluorescent material cover of coating different proportion, just can reach the LED bulb lamp of different-colour and colour rendering index.

Bulb in use, blue-light LED chip excitated fluorescent powder, after being stimulated, fluorescent material launches gold-tinted, the gold-tinted that the blue light that chip sends and fluorescent material send mixes in LED package interior, finally launch the white light of experiencing on human eye physiological vision, because blue-light LED chip is directly encapsulated on LED substrate, chip surface is not coated with fluorescent material, the heat that chip produces can better leave, reduced the generation of light decay, make the luminous even of bulb lamp, owing to scribbling uniform fluorescent material in lampshade, as long as change the fluorescent material lampshade of coating different proportion, just can change the colour temperature and development index of LED bulb lamp to reach fast client's requirement, thereby greatly reduce the quantity in stock of LED light source, reduced the production cost of enterprise.

1. the LED bulb lamp of a uniform light, it is characterized in that: comprise lamp screw base, radiator, built-in power structure, blue-light LED chip, LED substrate, lampshade, described radiator is arranged on lamp screw base, it is inner that described built-in power structure is arranged on described radiator, be electrically connected to LED substrate, described LED chip is provided with a plurality of blue-light LED chips, described LED substrate is fixed by heat-conducting glue and radiator, described lampshade is screwed on radiator, and described lampshade inner side is with the fluorescent material being evenly coated with.