CN103388752A - Light guide bar-type LED (light emitting diode) daylight lamp - Google Patents

Abstract

The invention discloses a light guide bar-type LED (light emitting diode) daylight lamp, comprising a lamp tube, lamp heads arranged at two end parts of the lamp tube, a light guide bar, a refractive film and two rows of LED light bars; the refractive film is adhered to the bottom face of the light guide bar; the two rows of LED light bars are formed by a PCB (printed circuit board) and LED lights welded on the PCB; the LED light bars are respectively arranged on two sides of the light guide bar; the upper face of the light guide bar is a smooth face while the middle part of the bottom face is arched; multiple V-shaped ridges are distributed on the bottom face of the light guide bar; the V-shaped ridges have the heights of 0.1-0.3mm and the included angles of 107-125 degrees; the multiple V-shaped ridges are parallel; the distances between adjacent V-shaped ridges are arrayed in a gradually sparser mode from the light faces at two sides to the central position; and the heights of the multiple V-shaped ridges are arrayed in a gradually higher mode from the lighting faces at two sides to the central position. Compared with the prior art, the light guide bar-type LED daylight lamp has the efficacies of high lighting, no light and dark light spots at the lighting face and no glaring.

Description

A kind of LED fluorescent lamp of light-strip formula

Technical field

The present invention relates to LED fluorescent lamp field, relate in particular a kind of LED fluorescent lamp of light-strip formula, thereby have effect energy-conservation and the raising light emission rate.

Background technology

Traditional LED fluorescent lamp, it generally comprises PCB circuit board, a plurality of LED lamp, PC cover and heat dissipating housing, these a plurality of LED lamps all are arranged on circuit board and with circuit board and are electrically connected to, this circuit board is arranged on heat dissipating housing and can outwards distributes the heat that a plurality of LED lamps produce by heat dissipating housing, and this PC cover plays the effect of leaded light and also with heat dissipating housing, is connected and forms the shell of whole LED fluorescent lamp.

These a plurality of LED lamps are generally the single or double LED lamp that is welded on the PCB circuit board, this single or double LED lamp is close to the flat surface at daylight light middle part, the light that is directly sent by the LED lamp reaches illuminating effect, due to the LED lamp for being spaced, have between every lamp obvious bright dark space every, whole lamp luminescence is inhomogeneous, and due to the particularity of lambert's LED light type, cause peak light intensity directly to penetrate, easily form dazzle; Although above-mentioned PC cover can partly improve this problem, but has low, the not energy-conservation problem of light emission rate.

In view of this, the inventor, for the above-mentioned defect further investigation of existing LED fluorescent lamp, has this case to produce then.

Summary of the invention

The object of the present invention is to provide a kind of LED fluorescent lamp of light-strip formula, to solve existing LED fluorescent lamp, have the low and not energy-conservation problem of light emission rate.

In order to reach above-mentioned purpose, solution of the present invention is:

a kind of LED fluorescent lamp of light-strip formula, the lamp holder that comprises fluorescent tube and be arranged on lamp tube ends section, wherein, this LED fluorescent lamp also comprises light-strip, reflectance coating and two row LED lamp bars, this reflectance coating is attached on the bottom surface of light-strip, this two rows LED lamp bar is comprised of PCB circuit board and the LED lamp that is welded thereon, this two rows LED lamp bar is separately positioned on the both sides of light-strip, this light-strip upper surface is smooth surface, the middle part, bottom surface is arch, distribute and be formed with a plurality of V-arrangement ribs on the bottom surface of this light-strip, these a plurality of V-arrangement ribs are parallel to each other, between adjacent V-arrangement rib, spacing is to center by close to white-out cloth by the light-emitting area of both sides, the height of these a plurality of V-arrangement ribs is arranged to center from low to high by the light-emitting area of both sides.

Further, V rib height is by 0.1mm to 0.3mm, and V rib angle is by 107 to 125 degree.

Further, the LED lamp in this two rows LED lamp all is the setting of equidistant interval.

Further, also be provided with Electronic Control Unit in this fluorescent tube, this PCB circuit board is for arranging respectively the bottom of two row LED lamps, and these two PCB circuit boards all are connected with Electronic Control Unit.

After adopting said structure, the present invention relates to a kind of LED fluorescent lamp of light-strip formula, the LED lantern festival on this two rows LED lamp bar is injected in light-strip from two sides of light-strip respectively, after the reflection of light-strip bottom surface, will form even bright dipping at the light-strip end face.Compared with prior art, the present invention has following beneficial effect at least:

One, the present invention has cancelled the PC cover that plays diffusion in traditional LED lamp, and the light-strip that adopts plane substitutes the PC cover of this tubular type, thereby can improve light emission rate, the purpose of reach energy-conservation, saving product cost, reduce simultaneously whole lamp body long-pending, and make profile more succinct;

Two, the present invention is owing to having adopted light-strip, its V rib bottom surface structure can guarantee that the light distribution of light-strip exiting surface is lambertian distribution (namely consistent with the traditional fluorescent lamp light distribution), and the V-arrangement rib is designed according to network point distribution principle in LGP by the close regularity of distribution extremely thin, from shallow to deep, it both can guarantee that the light type was lambertian distribution, helped also to guarantee that the brightness of light-strip exiting surface changes soft, free from glare;

Three, the present invention, owing to being provided with the two row LED lamp bars that are distributed in the light-strip both sides, so can play the effect of being convenient to dispel the heat.

Description of drawings

Fig. 1 is the three-dimensional exploded view that the present invention relates to a kind of LED fluorescent lamp of light-strip formula;

Fig. 2 is the side view that the present invention relates to after a kind of LED fluorescent lamp combination of light-strip formula;

Fig. 3 is the schematic diagram of light path in light-strip in the present invention.

In figure:

LED fluorescent lamp 100

Fluorescent tube 1PCB circuit board 2

Lamp holder 3 light-strips 4

V-arrangement rib 41reflectance coatings 5

LED lamp 6Electronic Control Units 7.

The specific embodiment

In order further to explain technical scheme of the present invention, the present invention will be described in detail below by specific embodiment.

As shown in Figure 1 to Figure 3, the LED fluorescent lamp 100 of a kind of light-strip 4 formulas that the present invention relates to, it comprises fluorescent tube 1, be arranged on the lamp holder 3 at fluorescent tube 1 both ends, light-strip 4,reflectance coating 5 and two row LED lamp bars, this two rows LED lamp bar comprisesLED lamp 6 andPCB circuit board 2, wherein this fluorescent tube 1,PCB circuit board 2 and lamp holder 3 etc. all with the commonly used means in this area, therefore do not describe in detail.

See also shown in Figure 2ly, thisreflectance coating 5 is attached on the bottom surface of light-strip 4, and this two rows LED lamp bar is separately positioned on the both sides of light-strip 4, in the present embodiment, and the rectangular-shaped piece of this light-strip 4 for having certain thickness and having light transmission.

Please refer to shown in Figure 3, these light-strip 4 upper surfaces are smooth surface, the middle part, bottom surface is arch, distribute and be formed with a plurality of V-arrangement ribs 41 on the bottom surface of this light-strip 4, V rib height is preferably by 0.1mm to 0.3mm, V rib angle is preferably by 107 to 125 degree, these a plurality of V-arrangement ribs 41 are parallel to each other, between adjacent V-arrangement rib 41, spacing is to center by close to white-out cloth by the light-emitting area of both sides, the height of these a plurality of V-arrangement ribs 41 is arranged to center from low to high by the light-emitting area of both sides, namely regardless of being the spacing of V-arrangement rib 41 or highly all being the gradual change type variation.

In the present embodiment,LED lamp 6 in this two rows LED lamp bar all is equidistant interval and arranges, please coordinate shown in Figure 2, for whole LED fluorescent lamp 100 can correspondingly be controlled, as a kind of actual embodiment, also be provided withElectronic Control Unit 7 in this fluorescent tube 1, thisPCB circuit board 2 is for arranging respectively the bottom of two row LED lamp bars, and these twoPCB circuit boards 2 all are connected withElectronic Control Unit 7.

So, the present invention relates to a kind of LED fluorescent lamp 100 of light-strip 4 formulas, this two rows LED lantern festival is injected in light-strip 4 from two sides of light-strip 4 respectively, after the reflection of light-strip 4 bottom surfaces, will form even bright dipping at the exiting surface (being end face) of light-strip 4; Incidence angle and the angle between light-strip 4 of the light that specifically produces due toLED lamp 6 in two row's LED lamp bars are excessive, this moment, incident light can produce total reflection, and to V-arrangement rib 41 places, then reflex to again the end face of LGP, thereby guarantee that light source can exhale from LGP equably, luminous efficiency is higher.

In sum, compared with prior art, the present invention has cancelled the PC cover that plays diffusion intraditional LED lamp 6, and the light-strip 4 that adopts plane substitutes the PC cover of this tubular type, thereby can improve light emission rate, the purpose of reach energy-conservation, saving product cost, reduce simultaneously whole lamp body long-pending, and make profile more succinct; Then owing to having adopted light-strip 4, its V rib bottom surface structure can guarantee that the light distribution of light-strip 4 exiting surface emergent lights is lambertian distribution (namely consistent with the traditional fluorescent lamp light distribution), and V-arrangement rib 41 is designed according to network point distribution principle in LGP by the close regularity of distribution extremely thin, from shallow to deep, it both can guarantee that the light type was lambertian distribution, helped also to guarantee that the brightness of light-strip exiting surface changes soft, free from glare; , owing to being provided with the two row LED lamp bars that are distributed in light-strip 4 both sides, so can play the effect of being convenient to dispel the heat finally.

Above-described embodiment and graphic and non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field, to its suitable variation or modification of doing, all should be considered as not breaking away from patent category of the present invention.

Claims (4)

1. the LED fluorescent lamp of a light-strip formula, the lamp holder that comprises fluorescent tube and be arranged on lamp tube ends section, it is characterized in that, this LED fluorescent lamp also comprises light-strip, reflectance coating and two row LED lamp bars, this reflectance coating is attached on the bottom surface of light-strip, this two rows LED lamp bar is comprised of PCB circuit board and the LED lamp that is welded thereon, this two rows LED lamp bar is separately positioned on the both sides of light-strip, the upper surface of this light-strip is smooth flat, the middle part, bottom surface is arch, distribute and be formed with a plurality of V-arrangement ribs on the bottom surface of this light-strip, these a plurality of V-arrangement ribs are parallel to each other, between adjacent V-arrangement rib, spacing is to center by close to white-out cloth by the light-emitting area of both sides, the height of these a plurality of V-arrangement ribs is arranged to center from low to high by the light-emitting area of both sides.

2. the LED fluorescent lamp of a kind of light-strip formula as claimed in claim 1, is characterized in that, this V rib height is by 0.1mm to 0.3mm, and V rib angle is by 107 to 125 degree.

3. the LED fluorescent lamp of a kind of light-strip formula as claimed in claim 1, is characterized in that, the LED lamp in this two rows LED lamp all is equidistant interval and arranges.

4. the LED fluorescent lamp of a kind of light-strip formula as claimed in claim 1, is characterized in that, also is provided with Electronic Control Unit in this fluorescent tube, and this PCB circuit board is for arranging respectively the bottom of two row LED lamps, and these two PCB circuit boards all are connected with Electronic Control Unit.

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