CN203453854U

CN203453854U - LED bulb

Info

Publication number: CN203453854U
Application number: CN201320532198.9U
Authority: CN
Inventors: 马文波; 王建全; 梁丽; 李保霞
Original assignee: Sichuan Bonshine Optical Electron Technology Co Ltd
Current assignee: Sichuan Bonshine Optical Electron Technology Co Ltd
Priority date: 2013-08-29
Filing date: 2013-08-29
Publication date: 2014-02-26
Anticipated expiration: 2023-08-29

Abstract

The utility model discloses an LED bulb, which comprises a shell, a reflector, a radiator, a bottom seat and a bulb holder, wherein the bottom seat is connected with the lamp holder; the bottom seat is internally provided with a driving power supply; the radiator is arranged on the bottom seat; the shell is connected onto the radiator; the reflector is connected onto the upper end surface of the radiator; the upper end and the lower end of the reflector are provided with openings, and the upper end opening is larger than the lower end opening; a plurality of LED light source assemblies fixed on the upper end surface of the radiator are arranged inside and outside the reflector; and the LED light source assemblies and the reflector are located inside the shell. According to the LED bulb, as the LED light source assemblies are arranged inside and outside the reflector, light can be reflected under the action of the inner surface and the outer surface of the reflector and part of the light is emitted towards the lower area of the reflector after being reflected to form the large angle illumination range.

Description

A kind of LED bulb

Technical field

The utility model relates to lighting technical field, specifically a kind of LED bulb.

Background technology

Consideration based on energy-conserving and environment-protective, incandescent lamp is abandoned by people gradually, and because of features such as LED bulb has that the life-span is long, light efficiency is high, radiationless, shock resistances, it is progressively replacing incandescent lamp.LED light source self is luminous has directive property, even if the light sending is after the diffusion of diffusion shell, compared with conventional incandescent lamp source that can omnirange luminous intensity distribution, the luminous intensity distribution angle of existing LED bulb still seems very narrow, luminous intensity distribution angle is generally all below 120 °, the back of lamp can form the shadow in larger region, and this can affect applying of LED bulb.

Utility model content

The purpose of this utility model is to solve the narrow problem in luminous intensity distribution angle of existing LED bulb, and a kind of LED bulb is provided, and it can increase luminous intensity distribution angle, and then is conducive to applying of LED bulb.

The purpose of this utility model is achieved through the following technical solutions: a kind of LED bulb, comprise shell, reflector, radiator, base and lamp holder, described base is connected with lamp holder, in base, be provided with driving power, radiator is arranged on base, and shell is connected on radiator, and described reflector is connected in radiator upper surface, the equal opening in the upper and lower two ends of reflector, and its upper end open is greater than its lower ending opening; Inside and outside described reflector, be equipped with a plurality of LED light source assemblies that are fixed on radiator upper surface, described LED light source assembly and reflector are all positioned at shell.Transmitter of the present utility model is when specifically arranging, can be according to the demand of the distribution of LED light source assembly, quantity and luminous intensity distribution, the cross section of reflector is set to the shape of any desired such as circle, square, polygon, the vertical section of reflector can be the shape of trapezoidal, concave or other any desired, the surfaces externally and internally of reflector can be smooth flat, also can be for having the surface of concaveconvex structure.

In order further to strengthen astigmatic performance of the present utility model, the surface of described radiator is provided with diffusion layer.

Convenient in order to draw materials, save cost, further, the material of described diffusion layer is titanium dioxide, silica or barium sulfate.

The material of described radiator is metal or pottery.The utility model is when specifically arranging, and radiator preferably adopts metal or the pottery that heat conductivity is high to make.

Further, described case surface is coated with light scattering layer.Light scattering layer is coated in inner surface or the outer surface of shell.

Convenient for the utility model when application installed, described lamp holder is spiral lamp holder or direct insertion lamp holder.

Further, the upper and lower both ends open of described reflector is circular open, and the bore of reflector upper end open is greater than the bore of its lower ending opening.

Compared with prior art, the utlity model has following beneficial effect: inside and outside reflector of the present utility model, be provided with LED light source assembly, the light that the inner surface of reflector sends the LED light source assembly on ledge surface in reflector reflects, it is gone out from reflector upper end open, the light that the outer surface of reflector sends the LED light source assembly that is distributed in its exterior circumferential reflects, part light is subject to reflection to the lower area transmitting of reflector, so, can increase luminous intensity distribution angle, form the illumination zone of wide-angle.

Accompanying drawing explanation

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

In accompanying drawing, the corresponding name of Reference numeral is called: 1, shell, 2, reflector, 3, LED light source assembly, 4, radiator, 5, base, 6, lamp holder.

The specific embodiment

Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.

Embodiment

As shown in Figure 1, a kind of LED bulb, comprises shell 1, reflector 2, radiator 4, base 5 and lamp holder 6, and wherein, base 5 is connected with lamp holder 6, in base 5, is provided with driving power, and radiator 4 is arranged on base 5, and shell 1 is connected on radiator 4.Radiator 4 is made by the high metal of heat conductivity or pottery, and its surface is provided with the diffusion layer that titanium dioxide, silica or barium sulfate are made.Shell 1 outer surface is coated with light scattering layer, and the material of light scattering layer is preferably polycarbonate-base light-scattering material.Lamp holder 6 in the present embodiment preferably adopts spiral lamp holder or direct insertion lamp holder.

Reflector in the present embodiment is the equal opening in two ends Shang Xia 2, reflector 2 is similar to cylinder-like structure, its upper and lower both ends open is circular open, the bore of the upper end open of reflector 2 is greater than the bore of its lower ending opening, reflector 2 is fixed on radiator 4 upper surfaces by draw-in groove or the screw socket of being located on radiator 4, inside and outside reflector 2, be equipped with a plurality of LED light source assemblies 3 that are fixed on radiator 4 upper surfaces, wherein, LED light source assembly 3 and reflector 2 are all positioned at shell 1.

During the present embodiment application, the light that LED light source assembly in reflector 2 sends is gone out by reflector 2 internal surface reflections and from reflector 2 upper end open, and the light that the LED light source assembly outside reflector 2 sends is reflected and launched to reflector 2 lower areas by reflector 2 outer surface.

Above content is the further description of the utility model being done in conjunction with concrete preferred embodiment, can not assert that the specific embodiment of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, not departing from other embodiments that draw under the technical solution of the utility model, all should be included in protection domain of the present utility model.

Claims

1. a LED bulb, it is characterized in that: comprise shell (1), reflector (2), radiator (4), base (5) and lamp holder (6), described base (5) is connected with lamp holder (6), base is provided with driving power in (5), it is upper that radiator (4) is arranged on base (5), and it is upper that shell (1) is connected to radiator (4), and described reflector (2) is connected in radiator (4) upper surface, the equal opening in the upper and lower two ends of reflector (2), and its upper end open is greater than its lower ending opening; Inside and outside described reflector (2), be equipped with a plurality of LED light source assemblies (3) that are fixed on radiator (4) upper surface, described LED light source assembly (3) and reflector (2) are all positioned at shell (1).

2. a kind of LED bulb according to claim 1, is characterized in that: the surface of described radiator (4) is provided with diffusion layer.

3. a kind of LED bulb according to claim 2, is characterized in that: the material of described diffusion layer is titanium dioxide, silica or barium sulfate.

4. a kind of LED bulb according to claim 1, is characterized in that: the material of described radiator (4) is metal or pottery.

5. a kind of LED bulb according to claim 1, is characterized in that: described shell (1) surface is coated with light scattering layer.

6. a kind of LED bulb according to claim 1, is characterized in that: described lamp holder (6) is spiral lamp holder or direct insertion lamp holder.

7. according to a kind of LED bulb described in any one in claim 1～6, it is characterized in that: the upper and lower both ends open of described reflector (2) is circular open, and the bore of reflector (2) upper end open is greater than the bore of its lower ending opening.