CN201306678Y

CN201306678Y - Led lighting tube

Info

Publication number: CN201306678Y
Application number: CNU2008201604460U
Authority: CN
Inventors: 张再平; 陶小君
Original assignee: Yixing Keli Electronic Technology Co Ltd
Current assignee: Yixing Keli Electronic Technology Co Ltd
Priority date: 2008-09-21
Filing date: 2008-09-21
Publication date: 2009-09-09
Anticipated expiration: 2018-09-21

Abstract

The utility model is an improved LED lighting tube. The lighting tube is characterized in that heat dissipation holes which have height differences horizontally and can form natural convection of air are formed on a transparent tube body. Compared with the prior art, as the through holes which can naturally form the convection with temperature differences are formed on the tube body, the heat generated by light emission of an LED in the tube can be dissipated to the outside, thereby not only effectively helping the LED lighting tube to dissipate the heat to the outside, limiting the temperature increase in the lighting tube and ensuring the high-efficient light emission of the LED, but also not increasing any coat by the heat dissipation; furthermore, the service life and the light emission stability thereof are better than the prior LED lighting tube.

Description

The LED pipe that throws light on

Technical field

Utility model is the improvement to LED illumination pipe, and it is good to relate in particular to a kind of thermal diffusivity, can have the control temperature rise LED illumination pipe.

Background technology

LED is because of plurality of advantages such as its energy-saving and environmental protection, longevities, and be applied to various illuminations more and more widely, for example substitute existing fluorescent tube with fluorescent lamp as illumination, its basic structure is: the connection lamp holder and the built-in LED luminous plaque that comprise transparent tube body, two ends band conduction lamp base, as (contour structures and fluorescent lamp are basic identical, just adopt the LED luminous plaque in the fluorescent tube) as described in Chinese patent CN201096283, the CN200980183 etc.Yet the deadly defect of LED is, temperature rise easily causes the shortening in service life and the reduction of luminous efficiency (optical attenuation acceleration), uses as lighting source for this reason, and for guaranteeing high luminous efficiency and long service life, heat dissipation problem must draw attention.

Prior art, people propose multiple heat sink conception to LED illumination fluorescent lamp, for example:

Chinese patent CN201069072, CN201096278, the disclosed LED illumination of CN201111606 pipe, be together to form round lamp tube by circular arc heat dissipation metal cover and diffuser, be provided with the draw-in groove that is used for fixing LED lamp bar in the heat dissipating housing, distributed by the heat that the heat dissipation metal cover produces LED.Though this structure can reach thermolysis, curved metal heat dissipating housing and transparent material circular arc diffuser combination fluorescent tube, manufacture difficulty is bigger, has increased manufacturing cost, and actual being difficult to applied.

Chinese patent CN101144591, CN101182918, the disclosed LED fluorescent lamp of CN101144606, the LED illuminator is arranged on the aluminium base, reverse side is provided with radiating block, the radiating block two ends are equipped with heat dissipating ring, make the LED illuminator produce heat and reach aluminium base, reach radiating block with conduction pattern equally again, reach heat dissipating ring with conduction pattern again with conduction pattern, pass space towards periphery by radiation and cross-ventilation mode at last, reach heat radiation.Same this radiator structure is more complicated, and it is more to increase cost, and is still higher in the face of present LED fluorescent lamp price, is difficult to actual applying.

The disclosed LED fluorescent lamp of Chinese patent CN201093351, adopt perforate aluminium mass shell body fluorescent tube, by housing LED lamp distribute heat is discharged outside the lamp body, light is then penetrated by aluminium mass shell body fluorescent tube hole, and need to satisfy the irradiation requirement by the fluorescent tube rotational structure is cooperated.This radiator structure, not only same cost height, and only depend on the perforate irradiation, illuminating area is less relatively, and irradiation is spot light then, does not meet the general lighting requirement.

The disclosed LED of Chinese patent CN1976554 illumination pipe adopts to be provided with above the inner pressure fan that ventilation usefulness is set of LED illumination pipe, pipe portion and ventilates with the heat radiation of hole forced ventilation.

In sum, prior art is to the LED fluorescent lamp heat radiation, substantially all be to adopt the radiator radiator structure, or band blower fan forced heat radiation, structure is comparatively complicated, causes the increase of cost, make the LED that cost itself is not low, hold at high price throw light on, cost is bigger, is difficult to actual applying, and therefore still having is worth improved place.

The utility model content

The utility model purpose is to overcome the deficiency of above-mentioned prior art, provides a kind of radiator structure simple, can not only efficiently radiates heat, and do not increase the LED illumination pipe of cost substantially.

The utility model purpose realizes, the main improvement is that the level of having has the discrepancy in elevation, can form the heat dissipation channel of natural convection air on LED illumination pipe both ends and/or transparent pipe shaft, utilize temperature difference convective principles, the automatic heat that LED in the fluorescent tube is produced, by with the automatic convection current of fluorescent tube outer air, reach heat radiation and restriction temperature rise, overcome the deficiencies in the prior art, realize the utility model purpose.Specifically, the utility model LED pipe that throws light on comprises translucent material long tube shell, and the body two ends connect lamp holder, and single LEDs of being provided with of the built-in LED of body combination striation or subtend, it is characterized in that the level of having has the discrepancy in elevation on the body, can form the louvre of natural convection air.

The said transparent long tube shell-and-tube body of utility model two ends lamp holder, its shape and structure, it is a kind of that to be preferably basic identical with existing fluorescent lamp (only be to remove inner wall of tube shell fluorescent material and two ends filament, replace with the LED combined light source), and size also better is designed to identical with fluorescent lamp, facilitate the use existing fluorescence lamp bracket, realize exchange with fluorescent lamp; Certainly shape, size design separately separately and also are fine, and this does not influence this patent goal of the invention and realizes effect.For example transparent shell can be the great hollow circular tube of draw ratio, also can be hollow, rectangular pipe or other polygon pipes, conductive base pin on the lamp holder of two ends, can be respectively to be one, also can be as fluorescent lamp, keep each two (to utilize existing lamp socket), perhaps single-ended structure, these all do not influence the utility model patent inventive concept.

Level has discrepancy in elevation louvre on the body, mainly be to strengthen heat loss through convection, if louvre in same level, the no discrepancy in elevation then be difficult to form the natural temperature differential convection current substantially, so its radiating effect is limited.Perforate on the body can be at the shell both ends, for example end face and/or side face, and the pipe shaft side face also can be to mix, as long as can form the natural temperature differential convection current, taking heat out of all is to be, wherein effect is excellent with two end regions especially.

Transparent shell inner light source is looked illuminating lamp tube length, can be rectangular LED combination striation, also can be high-power single LEDs light source, and two ends or subtend setting in twos provide radiation source, and this also belongs to prior art.

In addition, for further improving radiating effect, a kind of better is to make striation also form the air-flow conducting up and down, for example can be with the LED combination striation that inserts in the Transparent lamp tube, have some grooves and/or through hole on both sides and/or the plane, make LED combination striation also can form the air-flow exchange up and down.

The utility model LED pipe that throws light on, with respect to prior art, owing on body, have the through hole that can form temperature difference convection current naturally, make the heat of managing the interior luminous generation of LED not have and become to be dispersed into the outside, not only effectively helped LED illumination pipe outwards to dispel the heat, limited the rising of temperature in the illumination pipe, it is high efficiency luminous to guarantee that LED has, and this heat radiation, does not increase any cost, its service life and stability of photoluminescence all are better than existing LED illumination pipe, and this is a big feature of this patent.The utility model LED pipe that throws light on, same as the prior art, adopt and the measure-alike design of former fluorescent lamp structure, thereby can continue to use original fluorescence lamp bracket, directly replace fluorescent tube to change and use, help LED illumination pipe and promote the use of.

Below in conjunction with four specific embodiments; utility model is further understood in exemplary illustration and help; but the embodiment detail only is for utility model is described; do not represent utility model design whole technical schemes down; therefore should not be construed as the technical scheme qualification total to utility model, some do not depart from the unsubstantiality of utility model design and change In the view of the technical staff; for example simple the change or replacement of technical characterictic to have same or similar technique effect all belongs to protection domain of the present invention.

Description of drawings

Fig. 1 is the utility model first example structure schematic diagram.

Fig. 2 is Figure 1A-A generalized section.

Fig. 3 is the utility model second example structure schematic diagram.

Fig. 4 is utility model the 3rd an example structure schematic diagram.

Fig. 5 is utility model the 4th an embodiment LED light strip structure schematic diagram.

The specific embodiment

Embodiment 1: referring to Fig. 1,2, the utility model LED pipe that throws light on, comprise the long transparent pipe 5 of Merlon (PC), its size can be selected the fluorescent lamp size that substitutes corresponding power for use, there is relative draw-in groove 8 at the middle part in the pipe, card is inserted with horizontally disposed LED combination striation, LED combination striation is disposed by some LED lamp 6 connection in series-parallel, be distributed on the rectangular PCB circuit board 3 and form, wherein be shorter in length than transparent pipe, there is the conduction period that can keep supplying the downstream circulation at two ends, there are metal end 1.1 and 1.2 in transparent pipe two ends, and identical two conductive base pins 2.1 and 2.2 with former fluorescent lamp are respectively arranged, respectively with LED combination striation, the lighting circuit plate is drawn lead and is electrically connected, an end has lighting circuit plate 7 in the transparent pipe, and two ends metal end 1.1 and 1.2 end faces have some air vents 4.1 and 4.2 of level height difference.

Embodiment 2: referring to Fig. 3, as embodiment 1, air vent 9.1 and 9.2 is opened disc and following disc on zone, transparent pipe 5 both ends, and on through hole, be equipped with vertical short tube, form the bigger temperature difference convection current discrepancy in elevation, hot-air is discharged heat radiation in more helping managing, and the two ends short tube that vertically ventilates, and also can avoid mosquito to enter in the fluorescent tube.

Embodiment 3: referring to Fig. 4, as described above, air vent 10.1 and 10.2 is opened respectively at metal end 1.1 and 1.2 side faces, wherein an end in the above, an end forms level height difference below.

Embodiment 4: referring to Fig. 5, as described above, cross-ventilated ventilation indent and/or groove, hole 11 etc. are kept supplying down in LED combination striation both sides (also can be on the plate face).

To those skilled in the art; under utility model design enlightenment; some distortion that can directly derive or associate from this patent disclosure and general knowledge; or the substituting of known technology commonly used in the prior art; and the mutual various combination between feature; for example relatively lack for fluorescent tube length; the all right two ends of LED striation subtend is provided with or the great power LED of subtend setting in twos substitutes; or the like unsubstantiality change; can both realize and basic identical function of the foregoing description and effect; launch for example no longer one by one to describe in detail, all belong to this patent protection domain.

Claims

1, LED illumination pipe comprises translucent material long tube shell, and the body two ends connect lamp holder, and single LEDs of being provided with of the built-in LED combination striation of body or subtend, it is characterized in that the level of having has the discrepancy in elevation on the body, can form the louvre of natural convection air.

2, according to the described LED illumination of claim 1 pipe, it is characterized in that louvre lays respectively at two end regions.

3, according to the described LED illumination of claim 1 pipe, it is characterized in that the LED combination striation in the shell, some grooves and/or through hole are arranged on both sides and/or the plane.

4,, it is characterized in that LED combination striation is fixed in the printing opacity shell by inner wall of tube shell two side slots according to the described LED illumination of claim 1 pipe.

5, according to claim 1,2,3 or 4 described LED illumination pipes, it is characterized in that vertical short tube is arranged on the louvre.