CN201373327Y

CN201373327Y - LED bulb

Info

Publication number: CN201373327Y
Application number: CN200920130069U
Authority: CN
Inventors: 杨春建; 徐志林
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-18
Filing date: 2009-02-18
Publication date: 2009-12-30
Anticipated expiration: 2019-02-18

Abstract

The utility model relates to an LED bulb, which comprises a light shade, a light holder engaged with the light shade, a circuit board arranged inside the light holder, at least one LED, one layer or more than one layer of PET films arranged on the internal wall or external wall of the light shade, wherein the LED is disposed on one side of the circuit board backing to the light holder, the light shade includes a plurality of surfaces, each surface is a flat surface, the PET films can improve the optical property of the LED bulb. Simultaneously, each surface of the light shade is a flat surface, the structure of the surface brings convenience for adhering of planar PET films, is capable of avoiding uneven light of the LED bulb caused by wrinkles of cambered PET films, and the structure is simple, and the cost is low.

Description

The LED bulb

Technical field

The utility model relates to a kind of bulb, relates in particular to a kind of LED bulb.

Background technology

Conventional bulb is widely used in people's daily life, but it has power consumption height, the shortcoming that the life-span is short.New LED (light emitting diode) bulb has appearred in the raising day by day along with people's energy-conserving and environment-protective consciousness, and this bulb can use 100,000 hours continuously, and the life-span is longer 100 times than conventional bulb, has efficient height, long advantage of life-span.

But, exist light to have directionality and the dazzling problem of light because LED is a spot light; And, because LED emission direct light casts out the trickle decorative pattern on the lampshade wall of bulb easily and produces the shadow phenomenon.For improving the optical property of LED bulb, prior art proposes to be provided with at the lampshade inwall of LED bulb the method for fluorescent material.Light through fluorescent material becomes softer, also reduces the shadow phenomenon that occurs because of the trickle decorative pattern on the lampshade wall simultaneously.

For further improving the optical property of LED bulb, be necessary further to research and develop better scheme.

The utility model content

The purpose of this utility model is to provide a kind of good in optical property, simple in structure, LED bulb that cost is low.

For achieving the above object, the utility model adopts following structure: a kind of LED bulb, comprise lampshade, the lamp socket that matches with described lampshade, be arranged on circuit substrate and at least one LED in the described lamp socket, described LED is arranged on the one side of the lamp socket dorsad of described circuit substrate, wherein, also comprise the one or more layers of PET film that is arranged at described lampshade inwall or outer wall, described lampshade comprises a plurality of, and each face is the plane.

Wherein, described lampshade is polygon side's shape structure.

Wherein, described lampshade is the polygon cone structure.

Wherein, described PET film is PET bright enhancement film or PET diffusion barrier.

Wherein, described PET film is the PET diffusion barrier that adds lustre to.

Wherein, described LED quantity is a plurality of.

Wherein, described a plurality of LED is stacked to inverted pyramid shape.

Wherein, described a plurality of LED is stacked to column structure.

Wherein, described a plurality of LED is stacked to the hemisphere face structure.

Wherein, the described circuit substrate one side that is provided with LED is provided with one deck reflective membrane.

The beneficial effects of the utility model are as follows:

The utility model is owing to be provided with one or more layers of PET film at described lampshade inwall, and described PET film can improve the optical property of LED bulb.Simultaneously, each face of described lampshade is the plane, and this structure is convenient to being sticked of plane P ET film, the uneven problem of LED bulb light that can avoid the fold phenomenon of cambered surface PET film to cause, and simple in structure, cost is low.

Description of drawings

Fig. 1 is the generalized section of the utility model LED bulb embodiment one;

Fig. 2 is the generalized section of the utility model LED bulb embodiment two;

Fig. 3 is the generalized section of the utility model LED bulb embodiment three.

The primary clustering symbol description

1-lampshade 2-lamp socket 3-circuit substrate 4-LED 5-PET film 6-reflective membrane 7-Switching Power Supply

The specific embodiment

Fig. 1 is the generalized section of the utility model LED bulb embodiment one.Present embodiment comprises lampshade 1, the lamp socket 2 that matches with described lampshade 1, be arranged on the circuit substrate 3 of described lamp socket 2 bottoms, be arranged on described circuit substrate 3 lamp socket dorsad 2 one side a plurality of LED 4 and be arranged at the one or more layers of PET film 5 of described lampshade 1 inwall.

Described PET film 5 is PET diffusion barrier or PET bright enhancement film, and the former can make the light of LED bulb softer, and reduces described high light the trickle decorative pattern on lampshade 1 wall of bulb is cast out the shadow phenomenon of generation, and the latter can strengthen the illuminating effect of LED bulb.In order to make LED bulb light softer, can strengthen illuminating effect again, described PET film 5 also can adopt the PET diffusion barrier that adds lustre to, and perhaps adopts PET diffusion barrier and PET bright enhancement film simultaneously.As seen, by adopting PET film 5, can improve the optical property of LED bulb, and the LED bulb is simple in structure, cost is low.

But because PET film 5 is subjected to the restriction of current technology level, only be fit to form flat shape, when forming arc shape, the fold phenomenon can occur, influence the uniformity of described LED bulb light greatly, even make the part light of LED bulb more dazzling.For addressing this problem, it is rectangular side's shape structure that the lampshade of present embodiment adopts the bottom surface, and each face of the lampshade of this structure is the plane, is fit to being sticked of plane P ET film 5.Simultaneously, the PC sheet that can first injection formed on the technology has described lampshade 1 developed surface shape directly is folded into the PC sheet described lampshade 1 then, and technology is comparatively simple.In addition, described lampshade 1 is transparent PC cover, cloche or quartzy cover.

In order to enlarge the lighting angle of LED bulb, it is rectangular open column shape structure that described a plurality of LED 4 are stacked to the bottom surface.

The one side that described circuit substrate 3 is provided with LED 4 is provided with one deck reflective membrane 6, and described reflective membrane 6 is used to reflect this part light that is mapped to circuit substrate 3 from LED 4, and the light that LED 4 is sent is utilized more fully.

The open column shape structure of described lamp socket 2 for matching with described lampshade 1 is equipped with a Switching Power Supply 7 in its chamber.

Fig. 2 is the generalized section of the utility model LED bulb embodiment two.The difference part of present embodiment and embodiment one is:

(1) described lampshade 1 is an inverted pyramid shape.

(2) in order to enlarge the lighting angle of LED bulb, described a plurality of LED 4 are stacked to hollow inverted pyramid shape.

Fig. 3 is the generalized section of the utility model LED bulb embodiment three.The difference part of present embodiment and embodiment one is:

In order to enlarge the lighting angle of LED bulb, described a plurality of LED 4 are stacked to the hemisphere face structure.

In the utility model, described LED 4 quantity differ be decided to be a plurality of, as long as but satisfy at least one, decide on different needs.Described lampshade 1 also can be other kinds and satisfies the structure that each face is the plane, as other polygon side's shape structures, or other polygon cone structures.Described PET film 5 also can be arranged at the outer wall of described lampshade 1.

The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1, a kind of LED bulb, comprise lampshade, the lamp socket that matches with described lampshade, be arranged on circuit substrate and at least one LED in the described lamp socket, described LED is arranged on the one side of the lamp socket dorsad of described circuit substrate, it is characterized in that: also comprise the one or more layers of PET film that is arranged at described lampshade inwall or outer wall, described lampshade comprises a plurality of, and each face is the plane.

2, LED bulb according to claim 1 is characterized in that: described lampshade is polygon side's shape structure.

3, LED bulb according to claim 1 is characterized in that: described lampshade is the polygon cone structure.

4, LED bulb according to claim 1 is characterized in that: described PET film is PET bright enhancement film or PET diffusion barrier.

5, LED bulb according to claim 1 is characterized in that: described PET film is the PET diffusion barrier that adds lustre to.

6, LED bulb according to claim 1 is characterized in that: described LED quantity is a plurality of.

7, LED bulb according to claim 6 is characterized in that: described a plurality of LED are stacked to inverted pyramid shape.

8, LED bulb according to claim 6 is characterized in that: described a plurality of LED are stacked to column structure.

9, LED bulb according to claim 6 is characterized in that: described a plurality of LED are stacked to the hemisphere face structure.

10, LED bulb according to claim 1 is characterized in that: the one side that described circuit substrate is provided with LED is provided with one deck reflective membrane.