CN202419266U

CN202419266U - LED (light-emitting diode) daylight lamp

Info

Publication number: CN202419266U
Application number: CN2012200198729U
Authority: CN
Inventors: 顾毅天
Original assignee: WUXI AIR ELECTRONIC CO Ltd
Current assignee: WUXI AIR ELECTRONIC CO Ltd
Priority date: 2012-01-17
Filing date: 2012-01-17
Publication date: 2012-09-05
Anticipated expiration: 2022-01-17

Abstract

The utility model relates to the technical field of LED (light-emitting diode) lamp tubes, and in particular relates to an LED daylight lamp which comprises a lamp cover, LEDs, reflection films, a printed circuit board and a lamp holder, wherein the printed circuit board is provided with a plurality of LEDs. The LED daylight lamp is characterized in that besides the LED light-emitting points, high reflection films are distributed fully on the light-emitting surfaces of the LEDs, or high reflection materials are sprayed and printed on the surfaces of the LEDs; an insulation layer and a circuit layer in an aluminum base plate are directly fit on an aluminum heat radiation lamp holder, and an integrated structure of the printed circuit board and the lamp holder is formed. According to the utility model, the problems of low light transmission rate, nonuniform light and shade and poor heat radiation of the LED lamp tubes and a PC (poly carbonate) lamp cover are solved.

Description

A kind of LED fluorescent lamp

[technical field]

The utility model relates to LED fluorescent tube technical field, a kind of specifically LED fluorescent lamp.

[background technology]

Conventional LED fluorescent tube; In order to can't see luminous point and luminous even; All be to take high atomization PC lampshade, the low-power LED that gathers, 1.2 meters fluorescent tube; The lamp pearl is mostly all more than 200, and light output transmitance is all in (transmitance add the PC lampshade exactly after light fixture output light flux divided by not adding PC lampshade light fixture output light flux) about 85%.The result who causes like this is exactly, and the cost of making the LED fluorescent lamp is very high, and reliability is low, and low-power LED compares middle great power LED, and hear resistance and life-span are all lower.Find through technical Analysis and verification experimental verification; Same material transmitance on spherical PC lampshade can reach 95%; And bar shaped PC lampshade transmitance has only 85%, and transmitance is low to be because the PC lampshade adds too much Alevaire and elongate in shape PC lampshade causes a large amount of light to be reflected.

Usually built-in power LED fluorescent tube because of structure and radiating condition restriction, can only be accomplished below the 30W.LED lamp pearl all is to adopt SMT to be mounted on the aluminium base, and aluminium base is installed on the LED aluminum pipe lamp socket more then.Aluminium base is generally line layer, insulating barrier, aluminium base pressing and forms, and insulating barrier is epoxy film or glass fabric or polyimide (polyimides), and line layer is that the Copper Foil circuit etching forms.

A kind of structure of LED fluorescent tube is disclosed like domestic patent ZL200710123947.1; LED only is provided in a side of two of fluorescent tube in this structure, on inboard wall of tube body, is provided with transmitting film and diffusion barrier, and the heat dissipation problem in the LED arrangement has been avoided in this design cleverly; But LED is located at two ends and is arranged in the fluorescent tube compared with a plurality of; Luminous efficiency is low, can't be real accomplish that heat radiation is good, luminous light and shade is even.

[summary of the invention]

The purpose of the utility model is to solve above-mentioned defective in the prior art, provides a kind of and is covered with highly reflecting films (removing outside the luminous point) perhaps perhaps print high reflecting material in its LED light-emitting area spraying LED fluorescent lamp in the LED light-emitting area.

For realizing that above-mentioned purpose designs a kind of LED fluorescent lamp, comprise lampshade, LED, reflectance coating, printed substrate, lamp socket, it is characterized in that described LED fluorescent lamp LED light-emitting area is covered with highly reflecting films except that the LED luminous point; Described lamp socket adopts aluminium heat radiation lamp socket, and described printed substrate and lamp socket are integral structure, and printed substrate and lamp socket integrative-structure comprise line layer, insulating barrier and lamp socket; Described printed substrate and lamp socket integrative-structure are directly to be fitted in line layer and insulating barrier on the lamp socket; So just reduce cost, reduced thermal resistance, improved reliability of products; Described insulating barrier is made up of epoxy film or glass fabric or polyimides; Line layer is the Copper Foil of etching, and the directly solid crystalline substance of described LED wafer, routing, some glue are encapsulated on printed substrate and the lamp socket integrative-structure.

Described highly reflecting films adopt the highly reflecting films of using backlight commonly used, for example E6QV material.This material is a kind of white plastic sheet, and it is backlight to be used in LCD usually, and reflecting rate reaches 98%, good heat resistance.Fluorescent tube LED light-emitting area adds such highly reflecting films, and light output transmitance can promote transmitance more than 7% up to about 92%.A for example same fluorescent tube is under equal conditions tested, and does not add the PC lampshade, and luminous flux is 3980lm; After adding the PC lampshade, not adding E6QV reflectance coating luminous flux is 3362lm, and transmitance is 84.5%; Luminous flux becomes 3673lm after adding reflectance coating, and transmitance is 92.3%, and light output transmitance promotes 7.8%.

Great power LED during described LED adopts, 1.2 meters LED fluorescent tube lamp pearl quantity is lower than 100.

Described printed substrate and lamp socket integrative-structure top surface are concave configuration.

Be provided with built-in power in the described lamp socket, described built-in power adopts the built-in ultra-thin power supply of 30W to 50W high power.

A kind of in addition LED fluorescent lamp is characterized in that the lamp socket top surface is provided with a groove, is provided with printed substrate in the groove, and printed substrate is provided with some LED, and lamp socket top surface and print circuit board surface are covered with highly reflecting films except that the LED luminous point.

A kind of in addition LED fluorescent lamp is characterized in that the lamp socket top surface is provided with printed substrate, and printed substrate is provided with some LED, and lamp socket top surface and print circuit board surface are covered with highly reflecting films except that the LED luminous point.

The described highly reflecting films structure that is covered with replaces with spraying or prints high reflecting material.

The utility model is compared with prior art has following remarkable advantage:

Owing to adopted the LED light-emitting area to be covered with highly reflecting films or the high reflecting material technology of spraying printing, can promote light transmission rate up to more than 92%, and improve the light uniformity, improve LED lamp luminescence efficient.

Directly line layer on the conventional aluminum substrate and insulating barrier are fitted in aluminium heat radiation lamp socket; Make printed substrate integral type holder structure, reduce thermal resistance, save the aluminium base cost; Increased LED lamp pearl to PC lampshade distance; Improved the light uniformity, eliminated the cost and the unreliable factor of conventional aluminum substrate and radiator combination, radiating effect is better.

Great power LED in the employing, 1.2 meters LED fluorescent tube lamp pearl quantity is lower than 100, and the low reliability of assembly cost is high, and the utilization of middle great power LED makes the hear resistance of fluorescent lamp obtain significant raising.LED power can be up to 50W, and luminous flux can reach 5000 lumens, and such LED fluorescent tube can replace 2,3 traditional 36W fluorescent lamps, and cost is low and energy-saving effect is remarkable.

Can the solid brilliant routing point glue of LED wafer directly be encapsulated on the printed substrate integral type lamp socket, can reduce thermal resistance, practice thrift cost, improve reliability.

[description of drawings]

Fig. 1 is the sectional structure chart of embodiment 1;

Fig. 2 is the partial structurtes sketch map of embodiment 1;

Fig. 3 is the sectional structure chart of embodiment 2;

Fig. 4 is the partial structurtes sketch map of embodiment 2;

Fig. 5 is the sectional structure chart of embodiment 3;

Fig. 6 is the partial structurtes sketch map of embodiment 3;

Fig. 7 is the sectional structure chart of embodiment 4;

Fig. 8 is the partial structurtes sketch map of embodiment 4;

Among the figure: 1.PC lampshade 2.LED 3. reflectance coatings, 4. printed substrates and lamp socket are integral structure 5. printed wiring boards 6. lamp sockets

[specific embodiment]

In conjunction with accompanying drawing the utility model is described further, the manufacturing technology of this device is very clearly concerning this professional people.

Embodiment 1:

Like Fig. 1, shown in Figure 2, the LED fluorescent lamp comprises that PC lampshade, LED, reflectance coating, printed substrate and lamp socket are integral structure, and printed circuit board is provided with some LED, great power LED during LED adopts, and 1.2 meters LED fluorescent tube lamp pearl quantity is lower than 100.The LED light-emitting area is covered with highly reflecting films except that the LED luminous point, highly reflecting films for example can adopt the E6QV material to process, and also can or print high reflecting material in its surface spraying.Printed substrate and lamp socket are that integral structure is with pressure-sensing glue or directly be fitted on the lamp socket and form with insulating barrier and line layer.Described insulating barrier is made up of epoxy film or glass fabric or polyimides, and line layer is the Copper Foil of etching.Be provided with built-in power in the lamp socket, described built-in power adopts the built-in ultra-thin power supply of high power.

Embodiment 2:

Like Fig. 3, shown in Figure 4, different with embodiment 1 is that its printed substrate and lamp socket are that integral structure can be the trapezium structure that sink.

Embodiment 3:

Like Fig. 5, shown in Figure 6, different with embodiment 1 is that its lamp socket top surface is provided with a groove, is provided with printed substrate in the groove, and the lamp socket top surface is covered with highly reflecting films, also can or print high reflecting material in its surface spraying.

Embodiment 4:

Like Fig. 7, shown in Figure 8; Different with embodiment 1 is that the lamp socket top surface is provided with printed circuit board (PCB); Said substrate is provided with some LED, and lamp socket top surface and substrate surface are covered with highly reflecting films except that the LED luminous point, also can or print high reflecting material in its surface spraying.

Claims

1. a LED fluorescent lamp comprises lampshade, LED, reflectance coating, printed substrate, lamp socket, it is characterized in that described LED fluorescent lamp LED light-emitting area is covered with highly reflecting films except that the LED luminous point.

2. a kind of LED fluorescent lamp as claimed in claim 1 is characterized in that described lamp socket adopts aluminium heat radiation lamp socket, and described printed substrate and lamp socket are integral structure, and printed substrate and lamp socket integrative-structure comprise line layer, insulating barrier and lamp socket.

3. a kind of LED fluorescent lamp as claimed in claim 2; It is characterized in that described printed substrate and lamp socket integrative-structure are directly to be fitted in line layer and insulating barrier on the lamp socket; Described insulating barrier is made up of epoxy film or glass fabric or polyimides, and line layer is the Copper Foil of etching.

4. a kind of LED fluorescent lamp as claimed in claim 1 is characterized in that described highly reflecting films adopt white plastic highly reflecting films sheet.

5. a kind of LED fluorescent lamp as claimed in claim 1 is characterized in that great power LED in the described LED employing, and 1.2 meters LED fluorescent tube lamp pearl quantity is lower than 100.

6. a kind of LED fluorescent lamp as claimed in claim 1 is characterized in that described printed substrate and lamp socket integrative-structure top surface are concave configuration.

7. a kind of LED fluorescent lamp as claimed in claim 1 is characterized in that being provided with built-in power in the described lamp socket, and described built-in power adopts the built-in ultra-thin power supply of 30W to 50W high power.

8. a LED fluorescent lamp is characterized in that the lamp socket top surface is provided with a groove, is provided with printed substrate in the groove, and printed substrate is provided with some LED, and lamp socket top surface and print circuit board surface are covered with highly reflecting films except that the LED luminous point.

9. a LED fluorescent lamp is characterized in that the lamp socket top surface is provided with printed substrate, and printed substrate is provided with some LED, and lamp socket top surface and print circuit board surface are covered with highly reflecting films except that the LED luminous point.

10. like claim 1 or 8 or 9 described a kind of LED fluorescent lamps, it is characterized in that the described highly reflecting films structure that is covered with replaces with spraying or prints high reflecting material.