CN203810095U

CN203810095U - High-transparency LED (Light Emitting Diode) lamp tube based on refraction

Info

Publication number: CN203810095U
Application number: CN201320888476.4U
Authority: CN
Inventors: 黎勇
Original assignee: GUANGZHOU QUANYOU LIGHTING Co Ltd
Current assignee: GUANGZHOU QUANYOU LIGHTING Co Ltd
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2014-09-03
Anticipated expiration: 2023-12-31

Abstract

The utility model relates to a high-transparency LED (Light Emitting Diode) lamp tube based on refraction. The high-transparency LED lamp tube comprises a core wire, a power supply device and at least one LED lamp arranged in the core wire, wherein the at least one LED lamp is connected with the power supply device; an integral coating layer covers the periphery of the core wire. The high-transparency LED lamp tube is characterized in that the core wire is made of a transparent or semi-transparent material; the integral coating layer comprises a bottom coating part positioned on one side of an LED lamp holder, a light-transmitting coating part positioned in the light emitting direction of the LED lamp as well as an opaque coating part positioned in the lateral direction of the LED lamp; a refraction air gap is arranged on the lamp tube in the top direction. The lamp tube refracts the light in a mode that the refraction air gap is arranged to diverge the light, so that the loss of the light emitted by the LED lamp in the diverging process can be greatly reduced and the light transparency of the lamp tube is greatly improved; an L-shaped circuit board is adopted in the bendable lamp tube, so that the integral deformation performance of the lamp tube can be improved and the effect that the bending direction of the bendable lamp tube is perpendicular to the light emitting direction of the LED lamp is realized.

Description

High transmission rate LED fluorescent tube based on refraction

Technical field

The utility model relates to lamp decoration field, more specifically, relates to a kind of high transmission rate LED fluorescent tube based on refraction.

Background technology

LED lamp due to its low in energy consumption under, brightness is high, the life-span is long, color-variable, the advantages such as the easy tune of brightness, in modern photoelectric field, widely applied, this is requiring form of light source variation, the advertisement lamp decoration market of colour switching multiterminal is more obvious, simultaneously due to LED lamp small volume, not high to the space requirement of installation site, can be used in conjunction with various flexible structures, therefore in bent fluorescent tube market, be positioned at especially leading position.

The lamp band of the even bright dipping of existing imitative rainbow mainly comprises translucent heart yearn, is placed in the LED lamp in heart yearn, translucent crust and the clad of a band diffusion, and in order to reach the uniform effect of bright dipping, prior art mainly realizes by following 2 kinds of modes:

Referring to Fig. 1, in first kind of way, LED lamp 84 is positioned in heart yearn 81, the outer plastic peel 86 that is with of heart yearn 81, plastic peel 86 is provided with PVC(PolyVinyl Chloride, polyvinyl chloride in the periphery near LED lamp 84 lamp socket one sides, be called for short " PVC ") light blocking layer 85, lamp band is by blending spread powder powder in the plastic peel 86 at light direction, and the light sending when LED lamp 84 scattering occurs during through spread powder powder, thereby reaches the uniform effect of bright dipping.But in this scheme, due to the stopping and absorb of scattering powder powder, in the light that LED lamp 84 sends, light has been consumed in diffusion process greatly, and the integral light-transmitting rate of lamp band is only 40%.

Referring to Fig. 2, in the second way, LED lamp 94 is positioned in the groove of heart yearn 91 inside, and crust clad, being PVC light blocking layer 95 near LED lamp 94 1 sides, is translucent plastic crust 96 at lamp band light-emitting window.This lamp band utilize light directive PVC light blocking layer 95 that reflection of light principle sends LED lamp 94 and by the reflecting surface of PVC light blocking layer 95 inner surfaces by light reflection to exiting surface, also in the crust 96 of exiting surface position, add the spread powder of thin layer to reach the uniform effect of bright dipping simultaneously.In which, the light transmittance of lamp band increases than first kind of way, but because the reflection of frequency modulated light plastics cannot reach the high reflectance effect suitable with minute surface, cause light that LED lamp 94 sends because absorption and reflection loss have consumed, the actual light that really can be dispersed into outside is also less than original 60%.

In addition, in modern production, in order to enhance productivity, in existing light source welding procedure, FPC (Flexible Printed Circuit Board) is conventionally crossed Reflow Soldering equipment with chip mounter and is welded SMD(Surface Mounted Devices, surface mount device) paster, produces full wafer FPC with this.Referring to Fig. 3, flexible circuitry slab integral of the prior art is plane, and it comprises substrate 71, is evenly provided with LED lamp socket 72 on substrate, between different lamp sockets 72, with Copper Foil 73, connects, and wiring board two ends are fixed with both positive and negative polarity pad 74,75.Can find out, when this existing flexible PCB is applied to bent fluorescent tube, can only be crooked up and down along FPC face, the bending direction that is bent lamp band can only be identical or reverse with the light direction of LED lamp, and can not realize the bending direction and the vertical effect of LED lamp light direction of bent lamp band, and when existing FPC is applied to the bent lamp band shown in Fig. 2, although lamp band can be realized bending direction and the vertical effect of LED lamp light direction, or can not solve the low technical problem of LED lamp light transmittance.

Utility model content

The purpose of this utility model, overcomes the deficiencies in the prior art exactly, and a kind of high transmission rate LED fluorescent tube based on refraction is provided, and this LED fluorescent tube can reduce light in the loss of the process of dispersing, and significantly improves the light transmittance of LED lamp.

In order to achieve the above object, adopt following technical scheme:

A kind of high transmission rate LED fluorescent tube based on refraction, comprise heart yearn, electric supply installation and be positioned at least one the LED lamp in heart yearn, described LED lamp is connected with electric supply installation, described heart yearn periphery is also coated with integral coating layer, it is characterized in that, described heart yearn is transparent or semitransparent material, described integral coating layer comprises the coated portion in bottom that is positioned at LED lamp socket one side, the coated portion of printing opacity and the light tight coated portion that is positioned at LED lamp side direction that are positioned at LED lamp light direction, described fluorescent tube is provided with refraction air gap in LED lamp top-direction.

Preferably, described refraction air gap is arranged in heart yearn.

As a kind of specific embodiment, it is circle or convex polygon that described refraction air gap is extended axially along fluorescent tube the cross sectional shape that definite the midsagittal plane or the plane parallel with the midsagittal plane intercept by LED lamp axes.

As a kind of specific embodiment, corresponding with each LED lamp be at least provided with one refraction air gap, the be projected to rare part of described refraction air gap on LED lamp axial direction overlaps with the projection that LED lamp makes progress the party.

Preferably, between described adjacent refraction air gap, be also provided with at least one auxiliary air gap.

As a kind of specific embodiment, described fluorescent tube is bent flexible light band.

As a kind of specific embodiment, described heart yearn is also provided with for placing the LED lamp cavity volume of LED lamp.

Further, described arrangements of electric connection comprises FPC, described FPC comprises substrate, one side of described substrate is intermittently protruded formation light source board, between described light source board and substrate, form the angle of-180 °～+ 180 °, between adjacent light source plate, be reserved with interval trough position, described light source board is positioned in LED lamp cavity volume, and described LED lamp is positioned on light source board.

As a kind of specific embodiment, a plurality of light source boards are equidistantly evenly distributed along substrate axis direction, and described FPC is being provided with reflector layer near LED lamp one side.

As a kind of specific embodiment, the coated portion in described bottom and/or light tight coated portion inner side are provided with reflector layer.

Compared with prior art, the beneficial effects of the utility model are:

Employing arranges refraction air gap mode at LED lamp top reflects and divergent rays light, can greatly reduce light that LED lamp sends in the loss of the process of dispersing, and significantly improves fluorescent tube light transmittance; In bent fluorescent tube, adopt folding FPC, can improve the deformation performance of fluorescent tube integral body, realization allows bending direction and LED lamp light direction optional effect between-180 °～+ 180 ° of bent fluorescent tube, in addition, this LED lamp tube structure is simple, be easy to manufacture, have wide range of applications.

Accompanying drawing explanation

Fig. 1 is the diffusion principle schematic diagram one of neon lamp simulating band in prior art.

Fig. 2 is the diffusion principle schematic diagram two of neon lamp simulating band in prior art.

Fig. 3 is FPC structural representation in prior art.

Fig. 4 is core structure schematic diagram described in the utility model.

Fig. 5 is the schematic perspective view of L shaped flexible PCB described in the utility model.

Fig. 6 is the high transmission rate LED fluorescent tube cross-sectional structure schematic diagram based on refraction described in the utility model.

Fig. 7 is that the high transmission rate LED fluorescent tube light refraction based on refraction described in the utility model is dispersed schematic diagram.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described further:

Referring to Fig. 4-Fig. 6, high transmission rate LED fluorescent tube based on refraction described in the utility model, comprise heart yearn 1, electric supply installation, and be positioned at least one the LED lamp 4 in heart yearn 1, described LED lamp 4 is connected with electric supply installation, described heart yearn 1 periphery is also coated with integral coating layer 5, described heart yearn 1 is transparent or semitransparent material, described integral coating layer 5 comprises the coated portion 51 in bottom that is positioned at LED lamp socket one side, be positioned at the coated portion 53 of printing opacity and the light tight coated portion 52 that is positioned at LED lamp side direction of LED lamp 4 light directions, described fluorescent tube is provided with refraction air gap 11 in LED lamp 4 top-direction.

Above-mentioned term " LED lamp 4 light directions " refers to the position between LED lamp 4 and coated portion's 53 outer surfaces (being exiting surface 54) of printing opacity, refraction air gap 11 can be arranged in heart yearn 1 as required, also can be arranged in the coated portion 53 of printing opacity, even be formed between the coated portion 53 of heart yearn 1 and printing opacity." electric supply installation ", for powering to LED lamp 4 and controlling the duty of LED lamp 4, electric supply installation can be copper stranded conductor or wiring board.

Light tight coated portion 52 connects the coated portion 51 in bottom, the coated portion 53 of printing opacity and is coated portion 51, the common sealing tubular structure that forms of the coated portion 53 of printing opacity with bottom.

As required, the LED fluorescent tube under the utility model is as not bent rigidity LED fluorescent tubes such as fluorescent tubes, can be also bent LED fluorescent tube.When fluorescent tube is bent LED fluorescent tube, the part or all of of heart yearn 1, electric supply installation and integral coating layer 5 is that soft bent material is made.

In embodiment shown in Fig. 6, shown a kind of bent LED fluorescent tube (being flexible light band), in this fluorescent tube, LED lamp 4 is positioned on the axis of heart yearn 1 at vertical direction, described LED lamp 4 comprises lamp pearl and lamp socket, and refraction air gap 11 is extended axially along fluorescent tube cross sectional shape that definite the midsagittal plane 55 or the plane parallel with the midsagittal plane 55 intercept by LED lamp 4 axis, for circular, convex polygon or other are conducive to light, the shape of refraction occurs to fluorescent tube axial direction; Corresponding with each LED lamp 4 be at least provided with one refraction air gap 11, described refraction air gap 11 is provided with roughly the plane of refraction 13 extending along fluorescent tube axial direction deviating from LED lamp one side, in order to reach best refraction effect, the be projected to rare part of described refraction air gap 11 on LED lamp 4 axial directions overlaps with the projection that LED lamp 4 makes progress the party.

The material of heart yearn 1 is preferably transparent, refraction air gap 11 is arranged in heart yearn 1, the cross sectional shape that refraction air gap 11 is intercepted by the midsagittal plane 55 or the plane parallel with the midsagittal plane 55 is preferably triangle, above-mentioned electric supply installation comprises copper stranded conductor 2, described copper stranded conductor 2 is arranged in heart yearn 1 and along heart yearn 1 axial direction and extends, and LED lamp 4 is arranged at the position of the coated portion 51 in more close bottom of the coated portion 53 of relative printing opacity.Between above-mentioned adjacent refraction air gap 11, be also provided with at least one auxiliary air gap 14, described auxiliary air gap 14 is extended axially along fluorescent tube cross sectional shape that definite the midsagittal plane 55 or the plane parallel with the midsagittal plane 55 intercept by LED lamp 4 axis and is conducive to occur to fluorescent tube axial direction the shape of refraction for circular, convex polygon or other.

In described heart yearn 1, be also provided with for placing the LED lamp cavity volume of LED lamp, for the ease of integral body assembling, adjacent LED lamp cavity volume is interconnected and forms vertical passage 12.Described arrangements of electric connection comprises flexible PCB 3, described FPC 3 comprises substrate 31, one side of described substrate 31 is intermittently protruded and is formed light source board 32, between described light source board 32 and substrate 31, form the angle of-180 °～+ 180 °, in this example, preferably this angle is 90 °, so that form " L " shape structure between substrate 31 and light source board 32, a plurality of light source boards 32 are equidistantly evenly distributed along fluorescent tube axis direction, are reserved with interval trough position 33 between adjacent light source plate 32.Described light source board 32 is positioned over LED cavity volume bottom, and described LED lamp 4 is positioned on light source board 32, substrate 31 in vertical passage 12 outsides near the surface, longitudinal hole place of heart yearn 12.Be connected as a single entity formation " U " shape structure be coated with reflector layer in the inner side of " U " shape structure of the coated portion 51 in above-mentioned bottom and light tight coated portion 52, FPC 3 is also being coated with reflector layer near LED lamp 4 one sides, the inner surface of described flexible PCB 3 is printed with power supply and signal line, and flexible PCB 3 is in parallel with copper stranded conductor 2.

Based on said structure and setting, the high transmission rate LED lamp works process based on refraction described in the present embodiment is as follows: referring to Fig. 7, when in packaged fluorescent tube, LED lamp 4 is luminous, its light sending 40 parts are the coated portion of directive printing opacity 53 directions directly, the light tight coated portion 52 of another part directive and FPC 3 surfaces are also penetrated to the coated portion of printing opacity 53 directions by reflection, so most light 40 is focused on to fluorescent tube exiting surface 54 1 sides, and when light 40 is during through superrefraction air gap 11, because the density of the refraction interior atmospheric density of air gap 11 and heart yearn 1 is inconsistent, therefore there is refraction first in light 40 when entering refraction air gap 11 and leaving refraction air gap 11, part light 40 is the auxiliary air gap generation secondary of process or repeatedly refraction again after penetrating from refraction air gap 11, thereby light 40 is refracted to equably on the exiting surface 54 of the coated portion 53 of printing opacity, from exiting surface 54, just can't see so single bright spot or dark space, reach the effect of scattering.Because light 40 loss of refraction occurs far below the loss of reflection and scattering, therefore, in the situation that heart yearn 1 is transparent, the whole light emission rate of fluorescent tube can reach more than 90%.

Referring to Fig. 6, bent fluorescent tube described in the present embodiment can bend right and left along the direction perpendicular to the definite face of upper and lower two copper stranded conductors 2, existence due to " L " shape FPC 3 in the utility model, not only substrate 31 can be realized this in the bending of direction, light source board 32 for mounted LED lamp 4 also can adapt to this BENDING PROCESS due to the existence of interval trough position 33, has so successfully realized bent fluorescent tube light direction and the orthogonal effect of bending direction.

Should be appreciated that, the utility model is not limited to above-mentioned embodiment, every various changes of the present utility model or modification are not departed to spirit and scope of the present utility model, if these are changed and within modification belongs to claim of the present utility model and equivalent technologies scope, the utility model also means and comprises these changes and modification.

Claims

One kind based on refraction high transmission rate LED fluorescent tube, comprise heart yearn, electric supply installation and be positioned at least one the LED lamp in heart yearn, described LED lamp is connected with electric supply installation, described heart yearn periphery is also coated with integral coating layer, it is characterized in that, described heart yearn is transparent or semitransparent material, described integral coating layer comprises the coated portion in bottom that is positioned at LED lamp socket one side, the coated portion of printing opacity and the light tight coated portion that is positioned at LED lamp side direction that are positioned at LED lamp light direction, described fluorescent tube is provided with refraction air gap in LED lamp top-direction.
2. the high transmission rate LED fluorescent tube based on refraction as claimed in claim 1, is characterized in that, described refraction air gap is arranged in heart yearn.
As claimed in claim 1 or 2 based on refraction high transmission rate LED fluorescent tube, it is characterized in that, it is circle or convex polygon that described refraction air gap is extended axially along fluorescent tube the cross sectional shape that definite the midsagittal plane or the plane parallel with the midsagittal plane intercept by LED lamp axes.
As claimed in claim 1 or 2 based on refraction high transmission rate LED fluorescent tube, it is characterized in that, corresponding with each LED lamp be at least provided with one refraction air gap, the be projected to rare part of described refraction air gap on LED lamp axial direction overlaps with the projection that LED lamp makes progress the party.
5. the high transmission rate LED fluorescent tube based on refraction as claimed in claim 4, is characterized in that, between adjacent described refraction air gap, is also provided with at least one auxiliary air gap.
6. the high transmission rate LED fluorescent tube based on refraction as claimed in claim 1 or 2, is characterized in that, described fluorescent tube is bent flexible light band.
7. the high transmission rate LED fluorescent tube based on refraction as claimed in claim 1 or 2, is characterized in that, described heart yearn is also provided with for placing the LED lamp cavity volume of LED lamp.
As claimed in claim 7 based on refraction high transmission rate LED fluorescent tube, it is characterized in that, described electric supply installation comprises FPC, described FPC comprises substrate, one side of described substrate is intermittently protruded formation light source board, forms the angle of-180 °～+ 180 ° between described light source board and substrate, is reserved with interval trough position between adjacent light source plate, described light source board is positioned in LED lamp cavity volume, and described LED lamp is positioned on light source board.
9. the high transmission rate LED fluorescent tube based on refraction as claimed in claim 8, is characterized in that, a plurality of light source boards are equidistantly evenly distributed along substrate axis direction, and described FPC is being provided with reflector layer near LED lamp one side.
10. the high transmission rate LED fluorescent tube based on refraction as claimed in claim 1, is characterized in that, the coated portion in described bottom and/or light tight coated portion inner side are provided with reflector layer.