CN2911390Y

CN2911390Y - LED bulbs

Info

Publication number: CN2911390Y
Application number: CNU2006200599146U
Authority: CN
Inventors: 孙平如
Original assignee: 孙平如
Priority date: 2006-06-06
Filing date: 2006-06-06
Publication date: 2007-06-13

Abstract

The utility model relates to the LED lighting technical field, in particular to an LED lighting bulb, the utility model comprises a metallic lamp holder, a heat conducting lamp housing is fixed inside the lumen of the metallic lamp holder, and a driver circuit board is positioned at the lumen of the heating conducing lamp housing, and the driver circuit board is connected with a metal base via wires. One LED or more is arranged on the surface of the metal base. A plurality of high-index glass microballoons are arranged on the other areas of the metal base. The heating conducting lamp housing is provided with a transparent lampshade, the metal base and LED bulb are sealed inside the transparent lampshade, and the transparent film is coated on the inner cover of the transparent lampshade, the refractive index of the transparent film is greater than the air and less than the transparent lampshade. The utility model has the advantages of high brightness, uniform color and angular field of view.

Description

A kind of LED lighting bulb

Technical field:

The utility model relates to the LED lighting technical field, refers in particular to a kind of LED lighting bulb.

Background technology:

Traditional incandescent lamp bulb uses osram lamp, though this bulb brightness height, its luminous efficiency is low, quite power consumption, and along with the generation of the high heat of high temperature, tungsten filament is under the condition of high temperature for a long time and blows easily when luminous, so the tengsten lamp life-span is short.White light LEDs is a novel illumination light fixture of developing operation in recent years, compares with traditional light fixture, has advantages such as low pressure, low-power consumption, luminous efficiency height, high reliability, long-life, is a kind of environmental protection, energy-conservation novel green lighting source of meeting.Present LED lighting bulb, see shown in Figure 1, this LED lighting bulb primary structure comprises lamp holder 101, lamp housing 102, Transparent lamp shade 103, in lamp housing 102, be provided with drive circuit board 104 and substrate 105, substrate 105 is provided with a plurality of LED lamps 106, and behind the connection power supply, a plurality of LED lamps are simultaneously luminous, can reach certain brightness, realize the effect of illumination.The refractive index of air is low in Transparent lamp shade 103 inner chambers, and LED lamp 106 luminous directionality will cause Transparent lamp shade 103 top brightness to be higher than below brightness, and bulb sphere color and luster is inhomogeneous, and angular field of view is little, and ball bubble overall brightness is low.

The utility model content:

The purpose of this utility model is exactly to provide a kind of LED lighting bulb at the weak point of prior art existence, and it has overcome the shortcoming that the brightness of common LED lighting bulb is low, color and luster is inhomogeneous, angular field of view is little.

To achieve these goals, the technical solution adopted in the utility model is: it comprises metallic lamp holder, the metallic lamp holder inner chamber is fixed with the heat conduction lamp housing, be provided with drive circuit board at heat conduction lamp housing inner chamber, drive circuit board is received metal substrate by connecting wire, at the metal substrate upper surface except being furnished with at least one LED lamp, other zone of metal substrate upper surface also is furnished with one deck refractive index greater than 2.0 glass microballoon, the heat conduction lamp housing is supporting Transparent lamp shade, metal substrate and LED lamp are sealed in the Transparent lamp shade, the Transparent lamp shade inner surface scribbles the layer of transparent film, the refractive index of hyaline membrane greater than the refractive index of air less than the refractive index of Transparent lamp shade.

Heat conduction envelope inner wall top is provided with a flight, and metal substrate is fixed on the flight by the metal screw.

Metal substrate and heat conduction lamp housing assembling back form a groove, and Transparent lamp shade is plugged in the groove and by the heat conduction viscose glue and fixes.

The metallic lamp holder surface has at least one passage, and passage is communicated with the inner chamber of heat conduction lamp housing.

The Transparent lamp shade inner surface scribbles the layer of transparent film, the refractive index of hyaline membrane greater than the refractive index of air less than the refractive index of Transparent lamp shade, not only can improve LED optical transmission rate, and the light that sends when the LED lamp reflects through hyaline membrane, evenly mixed and outside the ejaculation simultaneously of transmission, the high-refraction glass bead of reflection ray directive metal substrate upper surface, glass microballoon is with the reverse retroreflecting of reflection ray, produce the light parallel with reflection ray, reflect again after returning the directive hyaline membrane, transmission is evenly mixed outwards to be penetrated, bulb brightness is improved, color and luster is even, and the visual angle increases.In addition, the heat of the luminous generation of LED is transmitted on the heat conduction lamp housing through metal substrate, and contact area is big, very fast heat is outwards distributed, so the LED life-span is long.

Description of drawings:

Fig. 1 is the structural representation of existing LED bulb;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is another structural representation of the present utility model.

The specific embodiment:

See Fig. 2, shown in 3, the utility model comprises metallic lamp holder 1, metallic lamp holder 1 inner chamber is fixed with heat conduction lamp housing 3, be provided with drive circuit board 4 at heat conduction lamp housing 3 inner chambers, drive circuit board 4 is received metal substrate 5 by connecting wire, at metal substrate 5 upper surfaces except being furnished with at least one LED lamp 6, other zone of metal substrate 5 upper surfaces also is furnished with one deck high-refraction glass bead 7, high-refraction glass bead 7 is high transparent solid microballoon, its refractive index is greater than 2.0, heat conduction lamp housing 3 is supporting Transparent lamp shade 8, metal substrate 5 and LED lamp 6 are sealed in the Transparent lamp shade 8, Transparent lamp shade 8 inner surfaces scribble layer of transparent film 9, the refractive index of hyaline membrane 9 greater than the refractive index of air less than the refractive index of Transparent lamp shade 8.Transparent lamp shade 8 inner surfaces scribble layer of transparent film 9, the refractive index of hyaline membrane 9 greater than the refractive index of air less than the refractive index of Transparent lamp shade 8, not only can improve LED optical transmission rate, and the light that sends when LED lamp 6 reflects through hyaline membrane 9, evenly mixed and outside the ejaculation simultaneously of transmission, the high-refraction glass bead 7 of reflection ray directive metal substrate 5 upper surfaces, glass microballoon 7 is with the reverse retroreflecting of reflection ray, produce the light parallel with reflection ray, reflect again after returning directive hyaline membrane 9, transmission is evenly mixed outwards to be penetrated, bulb brightness is improved, color and luster is even, and the visual angle increases.

Heat conduction lamp housing 3 inwalls are provided with a flight 10, and metal substrate 5 is fixed on the flight 10 by metal screw 11, and the heat that LED lamp 6 produces when luminous is transmitted on the heat conduction lamp housing 3 through metal substrate 5, contact range is big, most of heat outwards distributes, rapid heat dissipation, and 6 life-spans of LED lamp are long.

Metal substrate 5 forms a groove 12 with heat conduction lamp housing 3 assembling backs, and it is interior and fixing by heat conduction viscose glue 13 that Transparent lamp shade 8 is plugged in groove 12, and heat conduction viscose glue 13 has the characteristics of rapid heat dissipation, the heat on the metal substrate 5 can be distributed fast.

Metallic lamp holder 1 surface has at least one passage 2, and passage 2 is communicated with the inner chamber of heat conduction lamp housing 3, realizes that the convection current of air reaches the heat radiation purpose simultaneously, and the air pressure that makes heat conduction lamp housing 3 inner chambers is with extraneous consistent

Certainly, the embodiment of the above, it is preferred embodiments of the present utility model, be not to limit the utility model practical range, so all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify, and are included in the utility model claim.

Claims

1, a kind of LED lighting bulb, comprise metallic lamp holder (1), metallic lamp holder (1) inner chamber is fixed with heat conduction lamp housing (3), be provided with drive circuit board (4) at heat conduction lamp housing (3) inner chamber, drive circuit board (4) is received metal substrate (5) by connecting wire, at metal substrate (5) upper surface except being furnished with at least one LED lamp (6), other zone of metal substrate (5) upper surface also is furnished with high-refraction glass bead (7), heat conduction lamp housing (3) is supporting Transparent lamp shade (8), metal substrate (5) and LED lamp (6) are sealed in the Transparent lamp shade (8), it is characterized in that: Transparent lamp shade (8) inner surface scribbles layer of transparent film (9), the refractive index of hyaline membrane (9) greater than the refractive index of air less than the refractive index of Transparent lamp shade (8).

2, a kind of LED lighting bulb according to claim 1 is characterized in that: heat conduction lamp housing (3) upper inside wall is provided with a flight (10), and metal substrate (5) is fixed on the flight (10) by metal screw (11).

3, a kind of LED lighting bulb according to claim 1 is characterized in that: metal substrate (5) forms a groove (12) when assembling with heat conduction lamp housing (3), and Transparent lamp shade (8) is plugged in the groove (12) and by heat conduction viscose glue (13) and fixes.

4, a kind of LED lighting bulb according to claim 1, it is characterized in that: high-refraction glass bead (7) is high transparent solid microballoon, and its refractive index is greater than 2.0.

5, a kind of LED lighting bulb according to claim 1 is characterized in that: metallic lamp holder (1) surface has at least one passage (2), and passage (2) is communicated with the inner chamber of heat conduction lamp housing (3).