CN203453828U

CN203453828U - LED (light emitting diode) lamp tube

Info

Publication number: CN203453828U
Application number: CN201320503791.0U
Authority: CN
Inventors: 方威; 戴建恒; 王�锋
Original assignee: LUXON OPTRONICS TECHNOLOGY Co Ltd
Current assignee: LUXON OPTRONICS TECHNOLOGY Co Ltd
Priority date: 2013-08-19
Filing date: 2013-08-19
Publication date: 2014-02-26
Anticipated expiration: 2023-08-19

Abstract

The utility model provides an LED (light emitting diode) lamp tube, which comprises a lamp shade, lamp heads, an LED luminous source, a heat radiator and a power supply driving device, wherein the lamp heads are positioned at two ends of the lamp shade, the power supply driving device is electrically connected with the LED luminous source, the heat radiator is arranged at the inner upper part of the lamp shade and is provided with an arc-shaped installing surface, a plurality of grooves are formed in the heat radiation surfaces opposite to the arc-shaped installing surface, the LED luminous source is an LED lamp strip formed by a plurality of LED units through being connected in series, and the LED lamp strip is fixedly arranged on the arc-shaped installing surface of a heat radiation fin through insulation heat conducting glue. The illumination intensity of the LED lamp tube is high, the illumination is uniform, the human eyes cannot feel tired after the long-time illumination, and in addition, the heat radiation performance is good. The outside of the lamp tube totally is made of plastic cement materials, so the phenomena of electricity leakage, crushing and the like cannot occur, and the absolute safety of installation personnel can be ensured.

Description

LED fluorescent tube

Technical field

The utility model relates to lighting field, especially relates to illuminating LED fluorescent tube.

Background technology

Fluorescent tube is the daily conventional illuminations of people, scribbles fluorescent material in fluorescent tube, and is filled with a small amount of argon gas mercury vapour, and by switching on to filament, excitated fluorescent powder is luminous.Traditional fluorescent light, owing to containing mercury metal, can cause larger injury to environment and operating personnel during fabrication.In addition, it is luminous that traditional fluorescent tube will continue excitated fluorescent powder, and its power consumption is high and service life is short.Along with the demand to environmental protection attention and energy-saving and emission-reduction, traditional fluorescent tube is progressively eliminated by people, and turn by emerging LED fluorescent tube, progressively replaces.With traditional fluorescent tube comparison, that LED fluorescent tube has advantages of is energy-conservation, the life-span is long.

At the LED fluorescent tube existing on the market, comprise that lampshade, lamp holder, light emitting diode, power source drive device and heat abstractor form at present.Wherein LED package is fixed on metal installation base plate, metal installation base plate is fixed in lampshade, and light emitting diode is connected with power source drive device, and light emitting diode is connected with external power source by lamp holder with power source drive device.By power source drive device, drive lumination of light emitting diode.In order to strengthen the heat dispersion of LED fluorescent tube, some LED fluorescent tubes, by directly LED installation base plate being fixed in lampshade, are coated with the heat dissipation film that adds lustre in lampshade, by the heat dissipation film that adds lustre to, heat energy are seen through to lampshade and distribute.This light is because LED lamp is directly fixed on lampshade inwall by heat-conducting glue, and the heat on LED lamp directly conduction is given the glass lamp shade that posts the heat dissipation film that adds lustre to, and causes lampshade excess Temperature.Or a part of taking lampshade is metal material, a part is PC or glass material, its perfect heat-dissipating of lampshade part of metal material, but it cannot make light transmission, and its insulating properties of metal material is bad, and the dangerous accidents such as electric leakage easily occur.Separately have the LED unit in a kind of LED fluorescent tube to be arranged on respectively on radiating block, radiating block and lampshade are outside to be communicated with, by radiating block directly to external cooling.Because radiating block directly extends lampshade two ends, cause lamp holder place volume excessive, be inconvenient to install, and lampshade sealing property is bad, easily cause dust to enter in lampshade and cover LED unit, affect illumination effect.The most frequently used LED fluorescent tube in the market, its LED cellular installation is in lampshade centre, and mounting base and heat abstractor cover the position being positioned at more than lampshade center, become LED cell illumination blind area, affect field of illumination.

Summary of the invention

The technical problem existing for overcoming above-mentioned LED fluorescent tube, technical problem to be solved in the utility model is to provide a kind of LED fluorescent tube and has perfect heat-dissipating, brightness is high, light angle is large advantage.

In order to solve the problems of the technologies described above, LED fluorescent tube of the present utility model, the lamp holder, LED light emitting source, heat abstractor, the power source drive device that comprise lampshade, are positioned at described lampshade two ends are electrically connected to described LED light emitting source, it is characterized in that described heat abstractor is arranged on top in described lampshade, it has installed surface and back to the radiating surface of described installed surface; On described radiating surface, offer several grooves; Described LED light emitting source is the LED lamp bar being comprised of several LED units in series, and described LED lamp bar is fixed on the installed surface of described heat abstractor by thermal plastic insulation.

Described heat abstractor is the fin of strip, and its installed surface is arc installed surface.

Described LED lamp bar is fixed on installation base plate and is formed by several LED unit intervals, and the installation base plate of described LED lamp bar is fixed on described heat abstractor by described thermal plastic insulation.

Above described lampshade, both sides offer fixedly raised line, and the position of the corresponding described fixedly raised line of described heat abstractor offers fixed groove, and described fixedly raised line wears in described fixed groove described heat abstractor is fixed.

Described power source drive device is positioned at the lamp holder of described LED lamp bar one side.

LED fluorescent tube of the present utility model, heat abstractor offers several grooves, has increased the area of dissipation of heat abstractor, makes heat radiation evenly, then lampshade is distributed to fluorescent tube outside by heat energy.At heat abstractor, by buckle form, rib is nested in the fixed form in the groove of heat abstractor, and heat abstractor is taken out very easily from lampshade.LED unit on LED lamp bar is that the series connection of ，Qi interval, low-power LED unit is arranged on installation base plate.Owing to being small-power, and the setting that keeps at a certain distance away, therefore, LED lamp bar heat dissipation capacity is little, by heat abstractor, can realize good heat radiation.When on lamp bar, certain LED unit damages, can realize by changing independent LED unit, two do not need all to change whole LED lamp bar, cause very large waste.Heat abstractor is arranged on top in lampshade, makes, in region that the major part of lampshade all can throw light in LED lamp bar, to have expanded the field of illumination of LED fluorescent tube.And because LED lamp bar arranges along lampshade length, LED unit interval is distributed in lampshade, has realized illumination intensity high, and illumination is even.

Accompanying drawing explanation

Fig. 1, structural representation of the present utility model.

Fig. 2, the utility model construction for heat radiating device schematic diagram.

Fig. 3, the utility model lampshade structure schematic diagram.

The specific embodiment

In order to realize technique scheme, now lift a preferred embodiment and in conjunction with graphic, LED fluorescent tube of the present utility model be specifically described.Referring to Fig. 1 ~ Fig. 3, LED fluorescent tube of the present utility model comprises lampshade 1, lamp holder 2, LED lamp bar 3, heat abstractor 4, power source drive device 5, wherein.

Lampshade 1, profile is circular tube shaped lampshade, selects PC material as lampshade.When lampshade is transparent PC lampshade, its light transmittance is greater than 91%, and conventionally adopting light transmittance is 92% PC lampshade; During for light-diffused PC lampshade, light transmittance is greater than 86%; Conventionally adopt the high light transmittance light-diffused PC lampshade that light transmittance is 87%.According to the demand of the brightness of light, soften being carried out to the selection of lampshade kind.On lampshade 1 inner upper both sides inwall, correspondence is provided with fixedly raised line 11.Fixedly raised line 11 axially arranges along fluorescent tube, and in the present embodiment, fixedly raised line has certain angle of inclination.Fixedly raised line 11 is used for fixing heat abstractor.Fluorescent tube outside is all plastic material, thereby does not have the phenomenons such as electric leakage and fragmentation, can guarantee being perfectly safe of installation personnel.

Lamp holder 2, adopts ABS material to make, and the two ends that lay respectively at lampshade 1 seal lampshade 1.Power source drive device 5 is electrically connected to external power source by lamp holder 2, obtains the luminous driving electric energy in driving LED unit.

LED lamp bar 3, is fixed on installation base plate and is formed by several LED unit intervals.Installation base plate is aluminium material, has good heat conductivility.LED unit, light emitting diode, is fixedly mounted on the LED lamp bar that forms strip on installation base plate in the mode of connecting.The length of LED lamp bar and the length of lampshade match.LED lamp bar can be luminous to surrounding and below.Due to suitably distance setting of interval, the light that whole LED lamp bar sends is bright, and light is evenly soft, and the dead angle of not throwing light on is lighted for a long time human eye and do not had sense of fatigue.In order to reduce heat dissipation capacity, LED lamp bar can be taked low power LED unit, by series connection, can further reduce heat dissipation capacity.

Heat abstractor 4, chooses the material of perfect heat-dissipating, selects in the present embodiment aluminium material as heat radiation material.In this enforcement, the fin that heat abstractor 4 is strip, it has one for fixedly mounting the arc installed surface of LED lamp bar, offers several grooves on the radiating surface at the arc installed surface back side.By offering some grooves, strengthen the area of dissipation of heat abstractor, make heat energy can be good at shedding through heat abstractor.LED lamp bar is fixed on the arc installed surface of heat abstractor by thermal plastic insulation.Heat energy on LED lamp bar conducts to heat abstractor through heat-conducting glue, then through heat abstractor heat radiation, finally by PC lampshade, heat energy is spread to lampshade outside.In the radiating surface both sides of heat abstractor 4, the fixedly raised line position of corresponding lampshade, offers respectively corresponding fixed groove.When mounted, the fixed groove that is fixed with the heat abstractor of LED lamp bar is located in the fixedly raised line of lampshade inside from lampshade one end, heat abstractor is fixed in lampshade.When there is damage LED unit, only need heat abstractor to take out from lampshade, carry out the replacing of LED unit, do not need whole piece LED lamp bar to do and scrap processing.In the present embodiment, the radiating surface of heat abstractor carrys out increasing heat radiation area owing to having taked to have offered some grooves, and its radiating effect is fine.Because heat abstractor is fixed on the position, top in lampshade, away from the centre in lampshade, expand the field of illumination of LED lamp bar in lampshade, then expanded the field of illumination of LED fluorescent tube, made the brightness of illumination of LED fluorescent tube top higher than traditional LED lighting tube brightness in the market.

Power source drive device 5, is fixedly mounted in the lamp holder of lampshade 1 one sides, and is electrically connected to respectively with LED lamp bar, lamp holder, is electrically connected to, and provides driving power for LED lamp bar by lamp holder with external power source.Power source drive device driving LED lamp bar is luminous.Due to its prior art structure, do not repeat them here.

LED fluorescent tube of the present utility model, because the area of dissipation of heat abstractor is large, good heat dissipation effect, can well guarantee service life of LED lamp bar.Heat abstractor is fixed in lampshade by buckle form, easily the taking-up of LED lamp bar.Because LED lamp bar is positioned at the top of lampshade, it is luminous to surrounding and below, has expanded the field of illumination of LED fluorescent tube.And because LED lamp bar arranges along lampshade length, LED unit interval is distributed in lampshade, has realized illumination intensity high, and illumination is even.

Claims

1.LED fluorescent tube, the lamp holder, LED light emitting source, heat abstractor, the power source drive device that comprise lampshade, are positioned at described lampshade two ends are electrically connected to described LED light emitting source, it is characterized in that described heat abstractor is arranged on top in described lampshade, it has installed surface and back to the radiating surface of described installed surface; On described radiating surface, offer several grooves; Described LED light emitting source is the LED lamp bar being comprised of several LED units in series, and described LED lamp bar is fixed on the installed surface of described heat abstractor by thermal plastic insulation.

2. LED fluorescent tube according to claim 1, is characterized in that described heat abstractor is the fin of strip, and its installed surface is arc installed surface.

3. LED fluorescent tube according to claim 1, is characterized in that described LED lamp bar is fixed on installation base plate and is formed by several LED unit intervals, and the installation base plate of described LED lamp bar is fixed on described heat abstractor by described thermal plastic insulation.

4. LED fluorescent tube according to claim 1, it is characterized in that both sides offer fixedly raised line above described lampshade, the position of the corresponding described fixedly raised line of described heat abstractor offers fixed groove, and described fixedly raised line wears in described fixed groove described heat abstractor is fixed.

5. LED fluorescent tube according to claim 1, is characterized in that described power source drive device is positioned at the lamp holder of described LED lamp bar one side.