CN201434248Y

CN201434248Y - LED daylight lamp with different white-light exciting methods

Info

Publication number: CN201434248Y
Application number: CN2009201278061U
Authority: CN
Inventors: 王国忠
Original assignee: CHONGQING LONGSTAR OPTO-ELECTRONICS MANUFACTURE Co Ltd
Current assignee: CHONGQING LONGSTAR OPTO-ELECTRONICS MANUFACTURE Co Ltd
Priority date: 2009-06-29
Filing date: 2009-06-29
Publication date: 2010-03-31
Anticipated expiration: 2019-06-29

Abstract

The utility model proposes an LED daylight lamp with different white-light exciting methods, which relates to luminescence units formed by blue or purple, UV-LED components, these luminescence units are installed in an aluminum alloy seat, and then a cover plate made of transparent or scattering PC material or other optical resin material is covered at the seat, one surface of the cover plate madeof optical resin material is coated by a layer of yellow or trichromatic phosphor powder, the phosphor powder can also be directly added to resin cover material. Therefore, the blue light emitted bythe LED excites the yellow phosphor powder, or the purple light, the UV light excite the trichromatic phosphor powder, therefore, the even white-light can be obtained, and the LED daylight lamp with better quality and lower cost can be obtained. The utility model adopts completely different method of exciting the white-light, the structure is simple, the process is simpler, the operability is good, and the cost is lower.

Description

A kind of LED fluorescent lamp with different white light mode of excitation

Technical field

The utility model belongs to LED encapsulation and led light source lighting technical field.

Background technology

Present LED fluorescent lamp generally adopts blue chip to excite the white light LEDs element of yellow fluorescent powder to make.Such mode complex process, operation is a lot, and for the control that reaches LED fluorescent lamp colour temperature and luminous evenly, must carry out the photoelectricity screening of strict control and finished product to the production technology of LED element, the screening stepping is a lot, and cost of manufacture is very high, and effect is also not ideal.

Summary of the invention

The deficiency that the utility model exists at prior art, purpose provides a kind of LED fluorescent lamp that adopts diverse white light mode of excitation, and technology is simpler, and is workable, and cost is lower.

The technical solution of the utility model is as follows:

A kind of LED fluorescent lamp with different white light mode of excitation, the luminescence unit that it is made up of blueness or purple, ultraviolet LED element, these unit can be that direct insertion, adopting surface mounted LED element is welded on common line plate or the aluminium base wiring board and forms, also can be the aluminium base luminescence unit of direct packaging LED chips, and draw the patch cord that is connected with external power source by luminescence unit.These luminescence units are installed in the aluminium alloy seat, add a cover last layer transparent or the PC material of scattering or the cover plate of other optical resin materials then in the above, one side at this optical resin cover plate applies one deck yellow or three primary colors fluorescent powder, also can directly join fluorescent material in the material of resin cover plate.Blue-light excited yellow fluorescent powder that LED sent like this or purple light, ultraviolet excite three primary colors fluorescent powder, obtain uniform white light thus, thereby can obtain the LED fluorescent lamp of high-quality low-cost more.

Advantage of the present utility model:

1, broken through the manufacturing technology bottleneck of encapsulation of conventional white light LED element and LED fluorescent lamp, improved the uniformity control technological problems during conventional white light LED element is made, make the operability of LED fluorescent lamp manufacturing process improve greatly, help large-scale production in batches.

2, because this utility model is separated certain distance with fluorescent material and LED luminescence chip, thereby reduced fluorescent material attenuation problem at high temperature greatly, made prolong greatly the service life of LED fluorescent lamp.The fluorescent material of conventional white light LED element is adjacent around led chip, owing to the heat effects of led chip when working quickened its decay to fluorescent material, has influenced service life.

3, simple in structure, good manufacturability, the qualification rate height has reduced the manufacturing cost of LED application luminaire, makes its market fit scope more extensive.

Description of drawings

Fig. 1: be the sectional structure chart of a kind of embodiment of invention technology;

Fig. 2: be strip structure plane of the present utility model

Fig. 3: be square structure plane of the present utility model;

Fig. 4: be circular configuration plane of the present utility model;

The specific embodiment

Now further specify structure of the present utility model in conjunction with the accompanying drawings:

Referring to Fig. 1, soldering surface mounted formula blueness or purple or ultraviolet LED element 2 form luminescence unit on aluminium base printed substrate 1, LED element 2 is realized being electrically connected by the circuit design on common line plate or aluminium base printed substrate 1, and draws the patch cord that is connected with external power source.Aluminium base printed substrate 1 is fastened in the groove of aluminium alloy seat 3, covers optical resin cover plate 4 in the above, and the optical resin cover plate adopts the PC material of transparent or scattering.One side colored yellow or three primary colors fluorescent powder 5 at optical resin cover plate 4 also can directly join fluorescent material in the material of resin cover plate.The blue-light excited yellow fluorescent powder that sent of LED element 2 or purple light, ultraviolet excite three primary colors fluorescent powder like this, can obtain uniform white light.

This structure can be made into the profile the same with traditional fluorescent lamp and be directly installed on the traditional fluorescent lamp frame, also can be made into circle, squarely or special-shaped be used in different environments for use, referring to Fig. 2, Fig. 3 and Fig. 4.They can make 10cm, 20cm, 40cm, 100cm or other general full-length according to watt level and needs.

Claims

1, a kind of LED fluorescent lamp of different white light mode of excitation, it is characterized in that: it is the luminescence unit that adopts blueness, purple or ultraviolet LED element to form, described luminescence unit is installed in the aluminium alloy seat, and draw the patch cord that is connected with external power source by luminescence unit, on described aluminium alloy seat, add and be stamped one deck optical resin cover plate, described optical resin cover plate contains yellow or three primary colors fluorescent powder, or surface-coated has one deck yellow or three primary colors fluorescent powder.

2, LED fluorescent lamp according to claim 1 is characterized in that: described luminescence unit is welded on common line plate or the aluminium base wiring board by direct insertion or adopting surface mounted LED element to be formed, or directly is packaged with the aluminium base luminescence unit of led chip.

3, LED fluorescent lamp according to claim 1 and 2 is characterized in that: described optical resin cover plate adopts the PC material of transparent or scattering.