CN103375714A - LED lighting light tube used for fluorescent lamp lighting fixture - Google Patents
LED lighting light tube used for fluorescent lamp lighting fixture Download PDFInfo
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- CN103375714A CN103375714A CN2012105171924A CN201210517192A CN103375714A CN 103375714 A CN103375714 A CN 103375714A CN 2012105171924 A CN2012105171924 A CN 2012105171924A CN 201210517192 A CN201210517192 A CN 201210517192A CN 103375714 A CN103375714 A CN 103375714A
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Abstract
The invention provides an LED lighting light tube used for a fluorescent lamp lighting fixture. The LED lighting light tube comprises a semitransparent shell, a radiator with a fixing portion, a circuit board fixed on the fixing portion of the radiator in a heat-conducting manner, at least one LED light source mounted on the circuit board, and two end caps, the semitransparent shell comprises a first axial edge and a second axial edge which are opposite to each other, a notch is formed between the first axial edge and the second axial edge, the radiator is structured to be coupled with the shell to enable the radiator to cover the notch of the shell, a tubular structure with an inner cavity is formed by joint limiting of the radiator and the shell, the inner cavity comprises a lower-half cavity and an upper-half cavity, the fixing portion is positioned in the lower-half cavity, and the two end caps are structured to be suitable for being mounted at two ends of the tubular structure. The LED lighting light tube has a lighting mode with a relatively-wide lighting angle, can realize efficient and uniform lighting and has high luminous flux.
Description
Technical field
Present invention relates in general to a kind of LED illumination light tube.More particularly, the present invention relates to a kind of LED illumination light tube, it has the light illumination mode of relatively wide light angle, can realize efficient Uniform Illumination, and has the efficiency light flux.
Background technology
Fluorescent tube is because its low cost and high effect are widely used in commerce, industry and domestic environments.Billions of fluorescent tubes have been installed in the whole world.Yet fluorescent tube utilizes mercury emission harmful element ultraviolet light, and this may affect human health.And the age limit of fluorescent tube was at about 15000 hours or following.
LED (light emitting diode) occurs in the sixties in 20th century as a kind of solid state light emitter, is flexibly product of long, firm in structure, the low-power consumption of a kind of life-span and size, and this is so that they are more and more welcome.The LED illumination light tube that existing people's exploitation is used for fluorescent illumination implement replaces traditional fluorescent tube.The length of these LED illumination light tubes and the size of diameter are adjusted to and are fit to existing fluorescent illumination implement.
Yet, because spot light characteristic and light angle are limited, the performance of existing LED illumination light tube can not satisfy the following strict demand of illumination: according to the general illumination design principle, lighting source need to mate with illumination luminosity, provides equally distributed enough light intensity with wider light angle on the target illumination zone.
United States Patent (USP) 7049761 discloses a kind of illumination light tube, comprises bulb part and the circuit board that LED is installed.It is on the structure of H shape that this circuit board is installed in a cross section, and LED all is installed in the higher position of the first half of this bulb part.The light angle of this illumination light tube is 120 limited degree or less, because H shape structure, so the light path of the Lower Half of the H shape structure of this bulb part is very dark.
U.S. Patent application 2010/0265732 discloses a kind of illumination light tube with led light source, comprises housing, control circuit, the led circuit plate in this housing and is installed in LED on this led circuit plate.Similarly, LED all is installed in the first half of the housing in this illumination light tube, and consequently the same with U.S. Patent number 7049761 have a limited light angle.In addition, LED is scattered in each other every must be far away, and this causes light along this illumination light tube skewness, and can clearly observe factitious speck.
U.S. Patent application 2010/0157608 discloses a kind of LED illumination light tube, comprises housing, is installed in this housing and supports the aluminium base of a plurality of LED, be arranged at least two reflecting elements of the relative both sides of LED respectively.Inner surface at housing is formed with rib or similar structure, as the reflecting element that is used for diffused light.This illumination light tube has a potential shortcoming, and namely described two reflecting elements have limited its light angle, and the thickness reduction of tubular shell light output.
United States Patent (USP) 8115411 discloses a kind of LED illuminator.Utilization is installed in the light angle that multi-string LED in the illumination light tube increases this illuminator with different angles.This causes expensive certainly, and the radiating efficiency of LED is low.
Although have various LED illumination light tubes in the prior art, the shortcoming of these illumination light tubes be the light angle relative narrower with the light skewness.Even the housing of the illumination light tube above LED provides diffusing structure, light also can be scattered near the scattering region at top.So the final light angle of illumination light tube is still less, the major part of light pipe can not be sent light and form the dark space.
Therefore, need a kind of LED illumination light tube, it can provide Uniform Illumination along light pipe in tool benefit-cost ground, and light angle be 270 spend or more than, to adapt to various illumination occasions.Also need a kind of LED illumination light tube, the energy loss that it can improve luminous efficiency and reduce light.
Summary of the invention
In order to realize the demand, a main purpose of the present invention provides a kind of LED illumination light tube, produce along the equally distributed high lumen output of the length of described light pipe, and light angle be 270 degree or more than.
Another object of the present invention provides a kind of LED illumination light tube, and it uses low-power LED to obtain nature and equally distributed light illumination mode, and luminous efficiency is high, distributes better the heat that is produced by LED during operation.
Another object of the present invention provides a kind of LED illumination light tube for fluorescent illumination implement, substitutes traditional fluorescent tube.
These and other purpose of the present invention and advantage are by providing a kind of LED illumination light tube to realize, described LED illumination light tube comprises:
Translucent housing, described translucent housing comprises the first and second relative axial edge, is formed with a breach between them;
Radiator with standing part, described radiator is configured to and described housing coupling, so that described radiator covers the described breach of described housing, wherein said radiator and described housing limit the tubular structure with inner chamber together, described inner chamber comprises second chamber and first chamber, and described standing part is arranged in described second chamber;
Be fixed on the circuit board on the described standing part of described radiator with heat-conducting mode;
Be installed at least one led light source on the described circuit board; And
Be configured to be fit to be installed in two end caps at the two ends of described tubular structure.
Because described led light source is installed on the low-down position in the described inner chamber of described tubular structure, and described housing made by selected material, thus the angle that the light that described LED illumination light tube sends can cover non-constant width namely 270 degree or more than.By selecting to have the material that suitable light scattering, transmission and reflection characteristic make up, described housing can produce along the length of described light pipe equally distributed illumination, and luminous efficiency is high.Preferably, described material has the mist degree of about 85-99% and the light transmittance of about 55-75%.Advantageously, described material is constructed to have the surface roughness such as 0.6 μ m or 0.7 μ m less than 0.8 μ m.The optional auto-dope of described material has transparent plastic or the glass of diffusate, and described diffusate is selected from the powder of alumina powder, titanium oxide powder, silicon dioxide powder or other new nanometer technology compound.Preferably, described diffusate is made the nanometer powder form by nanometer technology.
In a preferred embodiment of the invention, described material is the Merlon that is doped with diffusate such as titanium dioxide powder.Better, the thickness of the described housing of being made by described Merlon is about the 0.5-1.5 millimeter, and described Merlon has the mist degree of about 90%-99% and the light transmittance of about 60%-70%.
In one embodiment of the invention, described radiator respectively arranges a retaining element along two relative axle sides of described standing part, is used for the fixing described circuit board of engagement, thereby described circuit board is fixed on the described radiator.Advantageously, between described circuit board and described radiator, apply Heat Conduction Material such as conduction oil.
The first and second axial edge of described housing have respectively the first and second flanges that extend internally.Described radiator is crossed over the two ends at described tubular structure.Described radiator is provided with two notches, and the position of described two notches is constructed to hold and firmly fixes described the first and second flanges in position.This has guaranteed the firm connection between described housing and the described radiator.
For better radiating effect, described radiator has a plurality of fin that the mode of being spaced disposes on its outer surface.
In order to strengthen heat radiation, described radiator is advantageously formed by a kind of Heat Conduction Material that is selected from the group that comprises aluminium, aluminium alloy, plastics and pottery.
In another embodiment of the present invention, described circuit board runs through whole described tubular structure between the two ends of described tubular structure.Described circuit board comprises first circuit board and at least one second circuit board with bridge rectifier, and each device is mutually electric coupling all.One of them end cap has two pinned couplers with described first circuit board electric coupling.Another end cap has two pinned couplers that form short circuit, with described circuit board electric insulation.Described two end caps all are constructed to the lamp socket coupling with fluorescent tube.
Preferably, used whole led light sources are arranged in a line and are installed on the described circuit board.
Described circuit board can be made by glass fiber reinforced epoxy resin laminate FR-4, composite epoxy resin material C EM-1/CEM2 or metal-core printed circuit board (MCPCB).Preferably 1 millimeter or less of the thickness of described circuit board, make the described led light source that is installed in described circuit board one side and with described radiator that described circuit board opposite side contacts between have good heat conduction.
According to the present invention, comprise that the LED control circuit of driver and other electron component are not placed on described light pipe the inside, are installed in them in the ligthing paraphernalia on the contrary.This arrangement guarantees the high temperature that described control circuit causes away from the heat energy that is produced by described a plurality of led light sources during normal operating, thereby improves its reliability and durability.
Compare with existing LED illumination light tube in the prior art, LED illumination light tube of the present invention is constructed to the arrange in a line low-down position in second chamber of the cross section that is installed in described light pipe of all led light sources.This has increased at the general ambient light surface area on second chamber especially on the housing.Another feature of LED illumination light tube of the present invention is that the case material selected is wanted so that the light that sends from led light source in housing transmission, scattering and reflection, produces more uniform light intensity, and the light angle of acquisition is larger.Thickness by selected material and control housing can lead a part of light and pass housing again, reduces optical energy loss.Because light output increases effectively, so may use low-power LED, this allows to use the radiator of smaller szie.
In order to understand better the present invention, now by reference to the accompanying drawings the present invention and embodiment are elaborated.
Description of drawings
Fig. 1 is the perspective view according to the LED illumination light tube of embodiments of the invention structure.
Fig. 2 is the exploded view of the illumination light tube of LED described in Fig. 1.
Fig. 3 is the top view of the illumination light tube of LED described in Fig. 1.
Fig. 4 is the bottom view of the illumination light tube of LED described in Fig. 1.
Fig. 5 is the side view of the illumination light tube of LED described in Fig. 1.
Fig. 6 is the sectional view along A-A line among Fig. 5.
Fig. 7 is the end-view of the illumination light tube of LED described in Fig. 1.
Fig. 8 represents to pass the light emission of the housing of the illumination light tube of LED described in Fig. 1, and wherein said light emission comprises transmitted light emission, scattered light emission, reverberation emission and the emission of backflow light.
Fig. 9 A is the schematic diagram of the light illumination mode of traditional T8LED illumination light tube of recording under free luminescent condition.
Fig. 9 B is the schematic diagram of the light illumination mode of the T8LED illumination light tube of the present invention that records under free luminescent condition.
Fig. 9 C is the schematic diagram of the light illumination mode of traditional T8LED illumination light tube of recording under the condition luminous in wide-angle specular reflector fluorescent illumination implement.
Fig. 9 D is the schematic diagram of the light illumination mode of the T8LED illumination light tube of the present invention that records under the condition luminous in wide-angle specular reflector fluorescent illumination implement.
Figure 10 A is the circuit diagram of a PCB of the illumination light tube of LED described in Fig. 1 use.
Figure 10 B is the circuit diagram of the 2nd PCB of the illumination light tube of LED described in Fig. 1 use.
Figure 11 is the schematic diagram of the electrical connection of each PCB in the illumination light tube of LED described in Fig. 1.
Figure 12 A and 12B are the schematic diagrames that the illumination light tube of LED described in Fig. 1 is electrically connected with power supply, and expression any direction in can both direction connects described illumination light tube.
The specific embodiment
Although illustrate and describe the present invention with preferred embodiment, LED illumination light tube of the present invention can be made various configuration, size and form with many different materials.
Please refer to now accompanying drawing, Fig. 1 to 7 provides a kind of LED illumination light tube 100 that makes up according to a preferred embodiment of the invention.The length of described LED illumination light tube 100 and diameter are made the suitable conventional fluorescent pipe that replaces in the fluorescent illumination implement of size.In this embodiment, described LED illumination light tube 100 comprises housing 10, radiator 20, circuit board 30, a plurality of led light source 40 and two end caps 50.Described LED illumination light tube also comprises be used to the control circuit (not shown) of controlling described led light source.Described control circuit is installed in the outside of described LED illumination light tube 100 but is fixed in the described fluorescent illumination implement (sees Figure 12 A and 12B).This arrangement of described control circuit had both prevented that described control circuit was subjected to the temperatures involved that is caused by the heat that described led light source produces, guarantee that again the light emission that described led light source passes described light pipe can not stopped by described control circuit, is configured in the light pipe unlike control circuit in the LED illumination light tube of prior art.Described control circuit is not main points of the present invention, so be not described in detail here.
Described housing 10 has the substantially cross section of Ω shape.Described housing comprises relative the first and second axial edge 11,12, is formed with a breach 13 between them.The first and second flanges 14,15 extend internally from described the first and second axial edge 11,12 respectively vertically.Although illustrated described housing 10 is Ω shapes, also can adopt the housing with square, triangle or other cross sectional shape.Described housing is made by the material with light scattering, transmission and reflection characteristic, is used for providing uniform light distribution and increases photodistributed light angle.The below will describe in detail this.
Described radiator 20 is constructed to and described housing 10 couplings, so that described radiator 20 covers the described breach 13 of described housing 10 fully, thereby limits a tubular structure.Shown in Fig. 2 to 6, the two ends that described radiator 20 is crossed at described tubular structure.Described radiator 20 comprises: two notches 21,22, the described flange 14 of their position and described housing 10,15 corresponding; With the upper surface as standing part 23, be used for loading the circuit board 30 that described led light source 40 is installed.By flange 14,15 being clamped in the described notch 21,22, described housing 10 can be fixedly secured with described radiator 20 is in the same place, thereby limits a tubular structure with inner chamber.Certainly, can adopt known technology fix such as buckle or securing member with as described in housing 10 and as described in radiator 20 be fixed together.The inner chamber of described tubular structure is comprised of two parts of dividing equally along horizontal center line axis B-B: first chamber 16 and second chamber 17.The size of described radiator 20 is so that described standing part 23 is arranged in described second chamber 17, and this allows the surface more than half of described housing 10 to send light.In the present embodiment, the height of described radiator 20 allows the major part (for example surperficial more than 60% tubular structure) of described tubular structure to send light so that described standing part 23 is positioned at the position near described tubular structure bottom.
Two relative axle sides along described standing part 23 respectively are provided with the retaining element that forms slot 24.The size and dimension of described slot 24 is so that it is close to engagement with described circuit board 30, and the described led light source 40 that is installed on the described circuit board 30 is exposed to central authorities.Between the standing part 23 of described circuit board 30 and described radiator 20, apply one deck Heat Conduction Material such as conduction oil, to obtain better conduction effect.Certainly, described circuit board 30 can be fixed on the described radiator 20 by adopting technology known in the art, forms preferably heat conduction and heat dispersion between them.For example, described circuit board 30 can invest on the described radiator 20 by viscosity conduction oil or some glue.In addition, described radiator 20 has the axle that is parallel to described tubular structure and a plurality of fin 25 that dispose to be spaced mode on its outer surface.The further promotion that arranges of described fin 25 is left by the heat energy that described led light source 40 produces.Described radiator 20 also comprises the screw hole 26 that is positioned at its two ends, and the position of described screw hole 26 is corresponding with the screw hole 52 of described end cap 50.
Preferably, described radiator 20 is formed by a kind of Heat Conduction Material that is selected from the group that comprises metal such as aluminum and its alloy, plastics and pottery.The material of described radiator 20 preferably has high mechanical properties, thereby keeps rigidity by the described tubular structure that forms that described radiator and described housing are coupled in desired length.
Described circuit board 30 is electrically connected by the first printed circuit board (PCB) (PCB) 31 and a plurality of the second printed circuit board (PCB) (PCB) 32 and forms.Described the first and second PCB can connect by electric connector 34 (such as Figure 11).A described PCB 31 is configured to comprise bridge rectifier 33, so that described illumination light tube is insensitive to the polarity of the DC current that provided by control circuit, therefore be installed in described fluorescent illumination implement on described illumination light tube 100 any direction operation in can both direction.Described the 2nd PCB 32 does not have rectifier.Perhaps, described circuit board 30 can be made of one, and comprises bridge rectifier at the one end.Described circuit board 30 comprises: the LED installed surface that described led light source 40 is installed; With the heat-transfer area relative with described LED installed surface, be used for impelling heat to be delivered to described radiator 20 from described led light source 40.Described circuit board 30 can be traditional FR4 or CEM type, or has the metal-core printed circuit board (MCPCB) of better thermal management ability.As mentioned above, described circuit board 30 slips in the described slot 24 of described radiator and is fixed in position.
Described led light source 40 can be LED, LED encapsulation or led array.All led light sources 40 can be connected and/or be connected in parallel, but they axially are installed on the described circuit board 30 along straight line.With regard to the light output efficiency of the heat-sinking capability of radiator and illumination light tube, the arrangement of this straight line of described led light source has cost benefit.Selection is installed in the quantity of the led light source 40 in the described illumination light tube 100, the power that requires to be fit to actual needs and special application scenario.For example, total flow be 33W delegation totally 144 LED under the 4000K colour temperature, obtain the output of 3000 lumens.
Figure 10 A and 10B represent to be installed in respectively the circuit diagram of the described led light source of a described PCB 31 and described the 2nd PCB 32.Can described led light source 40 be installed on a described PCB 31 and described the 2nd PCB 32 by welding, buckle connection or other known method.Owing to reason discussed below, the light emission is improved, than the existing LED illumination light tube of prior art, and the luminous efficiency that the output of the light of described LED illumination light tube 100 can be enhanced, and find that the luminous flux of described LED illumination light tube 100 is larger.So LED illumination light tube 100 can use the low-power led light source, provide nature and equally distributed light illumination mode.The radiator that this saves energy and can use smaller szie.
The end cap 50 that provides is fit to be installed in the two ends of the tubular structure that is limited by described housing 10 and described radiator 20.Fig. 7 is the end-view of described end cap 50, and described end cap 50 is G13 end caps suitable and coupling of conventional fluorescent ligthing paraphernalia.Be understandable that described end cap can have other structure.In this embodiment, each end cap 50 comprises for two pinned couplers 51 that are connected with the lamp socket of fluorescent tube and screw hole 52.Two pinned couplers 51 of one of them end cap 50 are electrically connected with the rectifier 33 of a described PCB 31, and being used for provides power supply to described led light source 40.Two pinned couplers 51 of another end cap 50 form together short-circuit structure and with described the 2nd PCB 32 electric insulations.By this line arrangement, no matter described LED illumination light tube 100 with which direction inserts in the lamp socket of fluorescent tube, and described LED illumination light tube 100 can both keep normal operation, and this more clearly shows in Figure 12 A and 12B.As shown in the figure, need not to distinguish the polarity of described led light source 40, described LED illumination light tube 100 can be installed on the lamp socket.Pass the described screw hole 52 of described end cap 50 and the described screw hole 26 of described radiator 20 with self-tapping screw 53, described end cap 50 and described radiator 20 can be fixed together.Described end cap 50 can be made by plastics, metal or their combination.
Preferably, the exposed surface of the inner surface of described housing 10 and described circuit board 30 made have reflection characteristic, reflect with the light in the inner chamber that strengthens described illumination light tube.For example, these surfaces can be configured to white reflecting surface.
Assembling described LED illumination light tube 100 comprises: be electrically connected described the first and second PCB to form described circuit board 30, described led light source is installed on it; Fixing described circuit board 30 is on described radiator 20; Described housing 10 and described radiator 20 are coupled; And, described end cap 50 is contained in the two ends of described tubular structure, thereby forms firm integrated illumination light-pipe structure.
A feature of the present invention is to select to be used for the material of described housing 10.By select to have suitable light scattering, the material of light transmission and reflective character combination, described housing the light angle of the light that sends from described led light source can be increased to 270 degree or more than, can also realize that uniform light distributes.Particularly, the material of selection will allow to pass described housing 10 from the light that described led light source sends with light transmission, light scattering, light reflection and light backflow form.
The light scattering of material and the degree of transmission are called " mist degree ".Mist degree can be by the doping level control of the small diffusate in the material such as titanium dioxide powder.Doping level is higher, and the light that scatters to adjacent domain is more, and directly transmission and to pass the light of material fewer causes higher optical attenuation and lower light output, and this situation is for hanging down transmission and high mist degree condition.On the contrary, if dopant very little, the light of escaping from material is more, and the scattering effect of material is poorer, causes distributing to bright spot and inhomogeneous light along the length observation of illumination light tube, and this situation is high transmission and low haze condition.
In order to realize that aforesaid uniform light distributes and effectively light extraction, should suitably select the material of described housing 10.Described housing 10 can be made by the Merlon, acrylic acid/lucite, glass or other the suitable transparent material that are doped with diffusate such as titanium oxide, aluminium oxide, silica etc., with mist degree and the transmissivity that obtains the needs according to the present invention.In a preferred embodiment, the material of described housing 10 is the Merlon that are doped with titanium oxide, and its mist degree is about 90%-99%, 96%-99% preferably, and transmissivity is about 60%-70%.
Fig. 8 is the schematic diagram that passes the light of described housing 10.A part of light 61 that the thick line representative is directly sent from described led light source 40, a part is passed described housing 10 in the described light 61, forms main light emission.Then the fine rule representative passes a part of light 62 in second chamber 16 of described housing 10 first from described housing 10 reflections, this part light is conducive to light angle is increased to more than 270 degree.
As mentioned above, the inner surface of described housing 10 has high reflection.Be reflected back toward the inner chamber of described illumination light tube by most of incident light of described led light source 40 generations.Reverberation can leave described housing 10 from different angles or direction, greater than the main photoemissive coverage (less than 120 degree) of the LED that is determined by described transmitted light 61.Described reverberation also can produce at the exposure reflecting surface of reflective inner surface, described radiator 20 and the described circuit board 30 of described housing 10 the secondary back reflection, obtains a part of backflow light 63.Although transmitted light 61 and described direct reverberation 62 is bright as described for described backflow light 63, it not only extends to light the lower position, angle close to very from the bottom of described tubular structure, also strengthens the light output of described illumination light tube 100.The inner surface of described housing 10 can be built as the surface roughness that has less than 0.8 μ m, to strengthen reflection of light and backflow.
Photoemissive another part of described housing 10 is the scattered light 64 that represents such as dotted line among Fig. 8.Described scattered light can obtain by the material of selecting to have light scattering characteristic, and described material has controllable diffusion index, and light is penetrated with wider light angle.As can be seen from Figure 8, the light angle that described scattered light 64 can be wider is diffused light and more effectively extract light equably.
The thickness of described housing also affects its transmissivity.In the situation with identical diffusing, doping degree, housing is thinner, and cost benefit is higher, exports because use material still less but obtain higher maximum light.But diffuser is thinner, affects its mechanical strength, and the structure of illumination light tube is not firmer.In one embodiment of the invention, the diameter of described illumination light tube is 1 inch, and the thickness of described housing 30 is 0.5 to 1.5 millimeter preferably 1.0 millimeters.
Please refer to now Fig. 9 A to 9D.These figure represent respectively under free luminescent condition and are installed in traditional T8 LED illumination light tube of recording under the condition luminous in the wide-angle specular reflector fluorescent illumination implement and the light illumination mode of described LED illumination light tube 100, and the housing 100 of wherein said LED illumination light tube is made by the Merlon that is doped with titanium oxide and had aforesaid better mist degree and a transmissivity.Term " freely luminous " refers to that illumination light tube is not coupled to the situation of conducting under any light pipe ligthing paraphernalia.Term " luminous in wide-angle specular reflector fluorescent illumination implement " refers to that illumination light tube is being coupled to the situation of conducting behind the light pipe ligthing paraphernalia with wide-angle specular reflector.In these figure, inner curve is when recording when the end cap of illumination light tube is observed illumination light tube, and external curve is to record when along the axis observation illumination light tube of illumination light tube.
The light illumination mode that Fig. 9 A and 9C represent to use traditional T8 LED illumination light tube of prior art to obtain.Fig. 9 B and 9D represent the light illumination mode that uses T8 LED illumination light tube 100 of the present invention to obtain.Can find out no matter observe illumination light tube from the end cap of illumination light tube or along the axis of illumination light tube, the illumination coverage that the illumination coverage of using described LED illumination light tube 100 to obtain obtains greater than the described traditional LED illumination light tube of use.This shows that LED illumination light tube of the present invention has than the wider light angle of described traditional LED illumination light tube.
Therefore, the invention provides a kind of LED illumination light tube that is used for the fluorescent tube lighting device tool that replaces the conventional fluorescent pipe, described LED illumination light tube can 270 degree or the even minute lighting and more effectively extract light of above wider light angle.Described LED illumination light tube has improved optical efficiency and has had higher luminous flux.This is because described led light source is placed on the position near described light pipe bottom, and the case material of selecting has needed light scattering, light transmission and reflective character.
Although fully described essence of the present invention according to some preferred embodiments, the present invention should not be confined to the 26S Proteasome Structure and Function of described embodiment and accompanying drawing.It is generally acknowledged as long as do not change, change or revise basic principle of the present invention, can carry out detailed modification to the present invention.Holding facile a lot of distortion and improvement by combination technology personnel's common practise without departing from the scope of the invention, should belong to scope of the present invention.
Claims (21)
1. a LED illumination light tube comprises:
Translucent housing, described translucent housing comprises the first and second relative axial edge, is formed with a breach between them;
Radiator with standing part, described radiator is configured to and described housing coupling, so that described radiator covers the described breach of described housing, wherein said radiator and described housing limit the tubular structure with inner chamber together, described inner chamber comprises second chamber and first chamber, and described standing part is arranged in described second chamber;
Be fixed on the circuit board on the described standing part of described radiator with heat-conducting mode;
Be installed at least one led light source on the described circuit board; And
Be configured to be fit to be installed in two end caps at the two ends of described tubular structure.
2. LED illumination light tube as claimed in claim 1 is characterized in that, selects transmissive, scattering and catoptrical material to make described housing.
3. LED illumination light tube as claimed in claim 2 is characterized in that, described material has the mist degree of about 85-99% and the light transmittance of about 55-75%.
4. LED illumination light tube as claimed in claim 3 is characterized in that, described material is selected from transparent plastics or the glass that is doped with diffusate.
5. LED illumination light tube as claimed in claim 4 is characterized in that, described diffusate is selected from titanium oxide, aluminium oxide, silica or zinc oxide.
6. LED illumination light tube as claimed in claim 4 is characterized in that, described material is the Merlon that is doped with titanium oxide.
7. LED illumination light tube as claimed in claim 6 is characterized in that, the thickness of the described housing of being made by described Merlon is about the 0.5-1.5 millimeter, and described Merlon has the mist degree of about 90%-99% and the light transmittance of about 60%-70%.
8. LED illumination light tube as claimed in claim 1 is characterized in that, described housing has surface roughness less than the inner surface of 0.8 μ m.
9. such as each described LED illumination light tube of claim 1 to 8, it is characterized in that described radiator respectively arranges a retaining element along two relative axle sides of described standing part, described retaining element is used for the fixing described circuit board of engagement.
10. such as each described LED illumination light tube of claim 1 to 8, it is characterized in that the first and second axial edge of described housing have respectively the first and second flanges that extend internally; Described radiator is crossed over the two ends at described tubular structure; Described radiator is provided with two notches, and the position of described two notches is constructed to hold and firmly fixes described the first and second flanges in position.
11. such as each described LED illumination light tube of claim 1 to 8, it is characterized in that, between described circuit board and described radiator, apply Heat Conduction Material such as conduction oil.
12., it is characterized in that described radiator has a plurality of fin of arranging with interval mode on its outer surface such as each described LED illumination light tube of claim 1 to 8.
13., it is characterized in that described radiator is formed by the Heat Conduction Material that is selected from the group that comprises aluminium, aluminium alloy, plastics and pottery such as each described LED illumination light tube of claim 1 to 8.
14. such as each described LED illumination light tube of claim 1 to 8, it is characterized in that described circuit board runs through whole described tubular structure between the two ends of described tubular structure; Described circuit board comprises first circuit board and at least one second circuit board, described first circuit board and the mutual electric coupling of described second circuit board with bridge rectifier.
15. LED illumination light tube as claimed in claim 14 is characterized in that, one of them described end cap has two pinned couplers with the described rectifier electric coupling of described first circuit board; Another end cap has two pinned couplers that form short circuit, with described second circuit board electric insulation.
16., it is characterized in that described circuit board is FR-4 type, CEM1 type, CEM2 type or metal-core printed circuit board such as each described LED illumination light tube of claim 1 to 8.
17., it is characterized in that described two end caps all are constructed to the lamp socket coupling with fluorescent tube such as each described LED illumination light tube of claim 1 to 8.
18., it is characterized in that described housing is made has reflective inner surface such as each described LED illumination light tube of claim 1 to 8; Described circuit board is made the reflecting surface with exposure.
19. such as each described LED illumination light tube of claim 1 to 8, comprising arranges in a line is installed in a plurality of led light sources on the described circuit board.
20. such as each described LED illumination light tube of claim 1 to 8, it is characterized in that, described led light source be arranged in second chamber of described tubular structure the position near described tubular structure bottom.
21. LED illumination light tube as claimed in claim 20 is characterized in that, the light illumination mode that described LED illumination light tube produces has the light angle greater than 270 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105171924A CN103375714A (en) | 2012-04-11 | 2012-12-05 | LED lighting light tube used for fluorescent lamp lighting fixture |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNPCT/CN2012/073813 | 2012-04-11 | ||
| PCT/CN2012/073813 WO2013152485A1 (en) | 2012-04-11 | 2012-04-11 | Led light tube for use in fluorescent light fixture |
| CN2012105171924A CN103375714A (en) | 2012-04-11 | 2012-12-05 | LED lighting light tube used for fluorescent lamp lighting fixture |
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| Publication Number | Publication Date |
|---|---|
| CN103375714A true CN103375714A (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105171924A Pending CN103375714A (en) | 2012-04-11 | 2012-12-05 | LED lighting light tube used for fluorescent lamp lighting fixture |
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| Country | Link |
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| CN (1) | CN103375714A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016085364A1 (en) * | 2014-11-28 | 2016-06-02 | Алексей Николаевич МИРОНОВ | Linear light-emitting diode light source (variants) |
| CN105674113A (en) * | 2014-12-05 | 2016-06-15 | 嘉兴山蒲照明电器有限公司 | LED straight lamp provided with supporting structure |
| CN106232256A (en) * | 2014-05-09 | 2016-12-14 | 飞利浦照明控股有限公司 | Linear lighting device and the method being used for manufacturing linear lighting device |
| CN112672636A (en) * | 2018-07-19 | 2021-04-16 | 哲斯特格林有限责任公司 | Lamp without fastening device |
| US11686457B2 (en) | 2014-09-28 | 2023-06-27 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US11906115B2 (en) | 2014-12-05 | 2024-02-20 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
-
2012
- 2012-12-05 CN CN2012105171924A patent/CN103375714A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106232256A (en) * | 2014-05-09 | 2016-12-14 | 飞利浦照明控股有限公司 | Linear lighting device and the method being used for manufacturing linear lighting device |
| CN106232256B (en) * | 2014-05-09 | 2018-07-13 | 飞利浦照明控股有限公司 | Linear lighting device and method for manufacturing linear lighting device |
| US11686457B2 (en) | 2014-09-28 | 2023-06-27 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| WO2016085364A1 (en) * | 2014-11-28 | 2016-06-02 | Алексей Николаевич МИРОНОВ | Linear light-emitting diode light source (variants) |
| CN105674113A (en) * | 2014-12-05 | 2016-06-15 | 嘉兴山蒲照明电器有限公司 | LED straight lamp provided with supporting structure |
| US11906115B2 (en) | 2014-12-05 | 2024-02-20 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| CN112672636A (en) * | 2018-07-19 | 2021-04-16 | 哲斯特格林有限责任公司 | Lamp without fastening device |
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Application publication date: 20131030 |