CN202469541U

CN202469541U - LED fluorescent tube

Info

Publication number: CN202469541U
Application number: CN2011204579782U
Authority: CN
Inventors: 王冬雷
Original assignee: Elec Tech International Co Ltd
Current assignee: BENGBU NVC LIGHTING TECHNOLOGY CO., LTD.
Priority date: 2011-11-17
Filing date: 2011-11-17
Publication date: 2012-10-03
Anticipated expiration: 2021-11-17

Abstract

The utility model provides an LED fluorescent tube. By adopting the LED fluorescent tube, a light radiation scope is enlarged; light service efficiency is enhanced; light uniformity is improved; and effects of a glare and vertigo sense on humans caused by local excessive light are prevented. The LED fluorescent tube comprises a lamp shade having an inner cavity with a hollow cylindrical structure, a substrate disposed in the inner cavity of the lamp shade, and one or more groups of LED light sources, wherein the LED light sources are fixed on the substrate; a local region of the side wall in the inner cavity of the lamp shade is provided with a reflective panel; and the LED light sources are disposed between the substrate and the reflective panel, with luminous surfaces of the LED sources facing to the reflective panel. The LED fluorescent tube also comprises a support disposed in the inner cavity, and the substrate is fixedly connected with the support. By adopting the LED fluorescent tube, lights radiated to external space can be more uniform, softer and fuller; disadvantages of large differences in color temperature and severe glare are overcome.

Description

The LED fluorescent tube

Technical field

The utility model belongs to technical field of lighting fixtures, relates in particular to a kind of LED fluorescent tube.

Background technology

Light emitting diode (Light Emitting Diode is called for short " LED ") is because advantages such as its life-span length, energy-saving and environmental protection are applied to lighting field more and more widely at present.The LED fluorescent tube is luminous through its inner LED, and the light transmission diffuser that sends is realized illumination.At present, the diffuser of LED fluorescent tube is processed by transparent or smooth milky PC material mostly.With the diffuser that transparent PC material is processed, then can't avoid single LED lamp pearl to bring sensation visually dizzy, cute conjunctivitis to the people; And the diffuser that adopts smooth milky PC material to process; The light efficiency that can make LED is with a toll of 12%～20% more than; And because the PC material is that the brightness of different lighting angles of emblem distortion and LED lamp is different after assembling; Can make the light-emitting area of LED fluorescent tube seem inhomogeneous, the phenomenon of colour temperature deviation arranged, thereby influence result of use.

Summary of the invention

The purpose of the utility model is to provide a kind of LED fluorescent tube, has not only increased the radiation scope of light, has improved the service efficiency of light, has improved the uniformity of light simultaneously, has avoided the local dazzling and spinning sensation that by force people is caused of crossing of light.

The utility model is realized through following technical scheme:

The LED fluorescent tube includes: have the hollow columnar structures of inner chamber lampshade, be arranged on substrate and one or more groups led light source in the lampshade inner chamber, said led light source is fixed on the substrate; Wherein, the sidewall regional area of said lampshade inner chamber is provided with reflective surface, and led light source is between said substrate and said reflective surface, and the light-emitting area of said led light source is towards said reflective surface.

Said LED fluorescent tube comprises that one is provided with the support in the inner chamber, and said substrate is fixedly connected on the said support.

The beneficial effect of the utility model is following:

The LED fluorescent tube of the utility model because the intracavity sidewall regional area of lampshade is provided with reflective surface, forms reflection shield, and led light source is between said substrate and said reflective surface; Because through adopting the reflective surface mode to outside space radiation, led light source is not the space that direct directive will throw light on the light of led light source, but behind the directive reflection shield, again through the reflection of the reflection shield space that will throw light on of directive again.Not only increase the radiation scope of light, improved the service efficiency of light; Improve the uniformity of light simultaneously, avoided the local dazzling and spinning sensation that by force people is caused of crossing of light; And simple in structure, practice thrift cost, be fit to produce in batches.

Description of drawings

Fig. 1 is the cross section structure sketch map of the embodiment one of the utility model LED fluorescent tube;

Fig. 2 locates the local enlarged diagram of A among Fig. 1;

Fig. 3 is employing curve or the reflective surface structural representation of type circular arc cross section of the embodiment one of the utility model LED fluorescent tube;

Fig. 4 is the reflective surface structural representation of employing broken line cross section of the embodiment one of the utility model LED fluorescent tube;

Fig. 5 is employing curve or the reflective surface structural representation of broken line longitudinal cross-section of the embodiment one of the utility model LED fluorescent tube;

Fig. 6 is the B-B schematic cross-section of Fig. 5;

Fig. 7 is the reflective surface structural representation of employing scattering surface longitudinal cross-section of the embodiment one of the utility model LED fluorescent tube;

Fig. 8 is the C-C schematic cross-section among Fig. 7;

Fig. 9 is the cross section structure sketch map of the embodiment two of the utility model LED fluorescent tube.

Description of reference numerals:

1, lampshade, 2, support, 3, substrate, 4, led light source, 11, reflective surface, 12, the lampshade inner chamber, 13, light shield, 15, upper lamp shade, 16, lower lamp shade.

The specific embodiment

Ask for an interview Fig. 1, the utility model discloses a kind of LED fluorescent tube, include: have the hollow columnar structures of inner chamber lampshade 1, be arranged on substrate 3 and one or more groups led light source 4 in the lampshade inner chamber 12, said led light source 4 is fixed on the substrate 3; Wherein, the sidewall regional area of said lampshade inner chamber 12 is provided with reflective surface 11, and led light source 4 is between said substrate 3 and said reflective surface 11, and the light-emitting area of said led light source 4 is towards said reflective surface 11.

Said LED fluorescent tube comprises that one is arranged on the support 2 in the lampshade inner chamber, and said substrate 3 is fixedly connected on the said support 2.

Embodiment one:

With reference to Fig. 1,2,3,4,5, shown in 7, the LED fluorescent tube of present embodiment includes left and right lamp holder (not marking among the figure), is positioned at the two ends of lampshade 1; Said substrate 3 is fixed in the said lampshade inner chamber 12 through left and right lamp holder.

One or more groups said led light source 4 be fixed in said substrate 3 on; Substrate 3 is fixed in the said lampshade inner chamber 12 through left and right lamp holder; Realize on the one hand being electrically connected with said substrate; The heat of being convenient on the other hand one or more groups said led light source 4 is produced in the course of the work in time conducts and is dispersed into the space outerpace of said led light source 4 through said substrate 3, is convenient to said led light source 4 and reliablely and stablely works.This led light source 4 can be the combination of wherein one or more forms of the LED of the LED of SMD packing forms, COB packing forms, also can be the combination of wherein one or more forms of small-power, great power LED.

Therefore in order to strengthen the radiating effect to said led light source 4, the utility model also can add one and be used to strengthen the support 2 to said led light source 4 heat radiations in the lampshade inner chamber 12 of said column lampshade 1; Said support 2 adopts heat sink material to process, and is supported between the left and right lamp holder, and described substrate 3 is arranged on the said support 2, and is close on the said support 2 through the mode of riveted.

Be used for also being provided with the reflective surface 11 that is used for reflection ray on the local inwall of the protection and the said lampshade inner chamber 12 of printing opacity effect; And said led light source 4 is positioned at the side of said substrate 3 towards said reflective surface 11; So that with the light-emitting area of said led light source 4 towards said reflective surface 11; Make light direct irradiation that it gave off on said reflective surface 11, and through being radiated outside the space through said column lampshade 1 again after the reflection of said reflective surface 11, to reduce because the sticky feeling that the light direct projection causes to human eye; Passing through the light reflected radiation scope simultaneously can be broader, even, has strengthened the service efficiency of light.

Like Fig. 1, shown in 2, the lampshade 1 of described hollow columnar structures adopts the high reflecting rate material: for example PP material, glass, optics diffusion PC material etc. are made, and on the local inwall of said column lampshade 1, are provided with reflective surface 11; The striated structure that said reflective surface 11 combines for vertical concavo-convex cambered surface; The light-emitting area of said one or more groups led light source 4 is towards said reflective surface 11; For the light that makes said led light source 4 is not fully revealed via the reflection of said reflective surface 11; Outside at the lampshade 1 of 11 overlay areas of said light-emitting area is provided with light shield 13.

Perhaps, the outer surface of the lampshade 1 of 11 overlay areas of said light-emitting area is provided with the shading cover layer.

Like Fig. 3, shown in 4, preferably, the said lampshade 1 whole light transmissive material that adopts is processed, and said reflective surface 11 is the combination of wherein any or various ways of the high reflecting rate material layer that on the inwall local surfaces of said lampshade 1, applies or metal-plated aluminium lamination; Perhaps said reflective surface 11 is formed forming metal or nonmetal reflecting piece that light has reflection function by being placed on said column lampshade 1 inwall one or more pieces; The shape of cross section of said reflective surface 11 adopts one or more form combining structures in curve, broken line, the circular arc simultaneously.

Like Fig. 5, shown in 6; Said reflective surface 11 can also adopt one or more groups form combining structure of vertical curved surface or folding face type or scattering surface type; Also can be like Fig. 7, shown in 8, said reflective surface 11 employing longitudinal cross-sections be one or more groups form combining structure of curved surface or folding face or scattering surface; So that the light from said led light source is more fully reflected, make light never be provided with the surperficial directive space outerpace of the said column lampshade 1 of reflective surface 11 then.For people provide softer, shadow surface is wider, the light that utilization rate is higher.

Embodiment two:

As shown in Figure 9, said lampshade 1 is made up of upper lamp shade 15 and lower lamp shade 16, and formation lampshade inner chamber 12, and said upper lamp shade 15 is processed by light transmissive material or light-proof material, its inner surface part or all be provided with reflective surface 11.

The shape of said reflective surface 11 and material all can will repeat no more at this with reference to the utility model embodiment one described material or structure fabrication.Said substrate 3 is positioned at said lampshade inner chamber 12; Said one or more groups led light source 4 is positioned at the side of said substrate 3 towards said reflective surface 11; And be fixed on the said substrate 3; And the light-emitting area of said led light source 4 is towards said reflective surface 11, so that light can be reflected by said reflective surface 11.

Said lower lamp shade 16 is positioned at the bottom of said upper lamp shade 15, is processed by light transmissive material, so that will be from the outside of the said column lampshade 1 of the light transmission of the said reflective surface 11 on top.

This explanation case study on implementation to the utility model details and explains; Though it has certain particularity on form and structure; But these are special only to be in order to describe and to explain the utility model, can't having influence on any restriction to the utility model.

Above-mentioned listed concrete implementation is nonrestrictive, and to one skilled in the art, in not departing from the utility model scope, various improvement and the variation carried out all belong to the protection domain of the utility model.

Claims

1.LED fluorescent tube includes: have the hollow columnar structures of inner chamber lampshade (1), be arranged on substrate (3) and one or more groups led light source (4) in the lampshade inner chamber (12), said led light source (4) is fixed on the substrate (3); It is characterized in that: the sidewall regional area of said lampshade inner chamber (12) is provided with reflective surface (11), and led light source (4) is positioned between said substrate (3) and the said reflective surface (11), and the light-emitting area of said led light source (4) is towards said reflective surface (11).

2. LED fluorescent tube as claimed in claim 1 is characterized in that: comprise that one is arranged on the support (2) in the lampshade inner chamber, said substrate (3) is fixedly connected on the said support (2).

3. LED fluorescent tube as claimed in claim 2 is characterized in that: include left and right lamp holder, be positioned at the two ends of lampshade (1); Said substrate (3) is fixed in the said lampshade inner chamber (12) through left and right lamp holder; Said support (2) adopts heat sink material to process, and is supported between the left and right lamp holder, and described substrate (3) is close on the said support (2) through the mode of riveted.

4. LED fluorescent tube as claimed in claim 3 is characterized in that: said reflective surface (11) is the combination of wherein any or various ways of the high reflecting rate material layer that on the inwall local surfaces of said lampshade (1), applies or metal-plated aluminium lamination.

5. LED fluorescent tube as claimed in claim 3 is characterized in that: said reflective surface (11) is formed forming metal or nonmetal reflecting piece that light has reflection function by being placed on said column lampshade (1) inwall one or more pieces.

6. like any one described LED fluorescent tube in the claim 1 to 5, it is characterized in that: the shape of cross section of said reflective surface (11) adopts one or more form combining structures in curve, broken line, the circular arc.

7. like any one described LED fluorescent tube in the claim 1 to 5, it is characterized in that: it is one or more groups form combining structure of curved surface or folding face or scattering surface that said reflective surface (11) adopts the longitudinal cross-section.

8. like any one described LED fluorescent tube in the claim 1 to 5, it is characterized in that: the outside at the lampshade (1) of said light-emitting area (11) institute overlay area is provided with light shield (13); The outer surface of the lampshade (1) of perhaps said light-emitting area (11) institute overlay area is provided with the shading cover layer.

9. like any one described LED fluorescent tube in the claim 1 to 5; It is characterized in that: said lampshade (1) is made up of upper lamp shade (15) and lower lamp shade (16); And formation lampshade inner chamber (12); Said upper lamp shade (15) is processed by light transmissive material or light-proof material, and its inner surface is local or all be provided with reflective surface (11); Said lower lamp shade (16) is positioned at the bottom of said upper lamp shade (15), is processed by light transmissive material.

10. LED fluorescent tube as claimed in claim 9; It is characterized in that: led light source (4) is the combination of wherein one or more forms of the LED of the LED of SMD packing forms, COB packing forms, and perhaps said led light source (4) is the combination of wherein one or more forms of small-power, great power LED.