CN201439878U

CN201439878U - LED fluorescent tube

Info

Publication number: CN201439878U
Application number: CN2009200621270U
Authority: CN
Inventors: 朱松发
Original assignee: HUABO TECH (ZHUHAI) INDUSTRY Co Ltd
Current assignee: HUABO TECH (ZHUHAI) INDUSTRY Co Ltd
Priority date: 2009-08-03
Filing date: 2009-08-03
Publication date: 2010-04-21
Anticipated expiration: 2019-08-03

Abstract

The utility model provides an LED fluorescent tube, comprising a lamp panel which is provided with a plurality of LED bulbs, a lamp shade arranged at the front side of the lamp panel, a heat dissipation base at the back side of the lamp panel and power plugs at two ends of the lamp tube; wherein the lamp shade is assembled with the heat dissipation base, the lamp panel is fixed on the heat dissipation base, and a plurality of heat dissipation fins are arranged on the outer surface of the heat dissipation base; in the LED fluorescent tube, as the heat dissipation fins are arranged on the outer surface of the heat dissipation base, the heat dissipation base has larger heat dissipation area under the same dimension, so as to obtain good heat dissipation effect and prolong the service life of the LED fluorescent tube.

Description

A kind of LED fluorescent tube

Technical field

The utility model relates to a kind of LED lighting, especially a kind of LED fluorescent tube.

Background technology

Now at home lighting generally adopts tengsten lamp and fluorescence as light source, because that these light sources have is cheap for manufacturing cost, low price and luminosity advantages of higher occupy the main flow of illumination at home always.But, tengsten lamp belongs to the thermoluminescence body, electric energy is luminous after being heated to tungsten filament more than 2000 ℃, electric energy is converted into heat energy earlier and is converted into luminous energy again, in this process, 5% the electric energy of only having an appointment is converted into luminous energy, and other energy major part slatterns with the form of heat energy, and its energy utilization rate is extremely low; Moreover tungsten filament can consume under the condition of high temperature in volatilization, has also died when the tungsten filament bulb that volatilizees totally, so its service life is shorter relatively, has only about 5000 hours.And fluorescent lamp belongs to gas-discharge lamp, charges into mercuryvapour in fluorescent tube, and mercuryvapour under high voltage ionization takes place, and sends the light of specific wavelength, and this light fluorescent material on the exciter lamp inside pipe wall again sends soft white light.Though fluorescent lamp increases than tengsten lamp on energy-conservation, its most fatal shortcoming is to be filled with mercuryvapour in the fluorescent tube, and is well-known, mercuryvapour is the poison gas that has that health is had serious harm, fluorescent tube is in case break, and mercuryvapour will be elegant comes out, and environment is caused secondary pollution.

The LED fluorescent tube is as a kind of house lighting that is used for substituting tengsten lamp and fluorescence etc., advantages such as energy consumption is little because it has, light efficiency is big, no mercury, radiationless pollution, material reproducible utilization, in today of energy growing tension, more and more be subjected to consumer's welcome.At present LED fluorescent tube on the market generally includes the lamp plate that is provided with a plurality of LED bulbs, is arranged on the lampshade that the plastics of lamp plate face side are made, and is arranged on the heat dissipation base of lamp plate rear side, and the attaching plug that is arranged on lamp tube ends.Yet, although the LED fluorescent tube of said structure has utilized the heat dissipation base of aluminum to be dispelled the heat,, fail effectively heat to be reduced because area of dissipation is too little, cause LED to reduce service life, make the LED fluorescent tube change the frequency increase.

The utility model content

The purpose of this utility model provides the LED fluorescent tube of a kind of good heat dissipation effect, long service life.

For achieving the above object, the utility model has adopted following technical scheme: a kind of LED fluorescent tube is provided, comprise the lamp plate that is provided with a plurality of LED bulbs, the lampshade that is positioned at described lamp plate face side, the attaching plug that is positioned at the heat dissipation base of described lamp plate rear side and is arranged on described lamp tube ends, wherein, the mutual winding of described lampshade and heat dissipation base, described lamp plate is fixed on the heat dissipation base, is formed with a plurality of radiating fins on the outer surface of described heat dissipation base.

Described a plurality of radiating fin is symmetrically distributed in the both sides of described heat dissipation base, is parallel to each other between a plurality of radiating fins of each side and respectively perpendicular to the length direction of this heat dissipation base.

The aluminum base that described heat dissipation base is formed in one.This heat dissipation base surrounds a tubular structure by roof, diapire and two sidewalls, its inner heat radiation inner chamber that forms; Wherein, described roof is circular arc, and described diapire and two sidewalls are plate shaped, and two sidewalls are respectively perpendicular to diapire; Described a plurality of radiating fin is distributed in the outer surface of two sidewalls.The aluminium thickness that forms described heat dissipation base can be 0.6mm～0.8mm, is preferably 0.7mm, and the heat conductivity of the ultra-thin aluminium of this thickness is higher, helps heat radiation.

The cross section of described lampshade is semicircular in shape roughly, and two end is formed with the tenon that extends along the length direction of lampshade respectively, has the groove that cooperates with described tenon on the described heat dissipation base.

Described a plurality of LED bulb can be the front that linear array is arranged in this lamp plate along the length direction of described lamp plate.

Described lampshade is preferably plastic lamp shade.

Scribble thermal paste between the lamp plate stationary plane of the back side of described lamp plate and described heat dissipation base,, reach better heat-conducting effect, also make the connection between them more firm simultaneously so that closely contact between lamp plate and the heat dissipation base.

The LED fluorescent tube of said structure is because the outer surface of heat dissipation base is provided with radiating fin, like this, under identical appearance and size, heat dissipation base has bigger area of dissipation, can obtain better radiating effect, thereby can prolong the service life of LED fluorescent tube.

Description of drawings

Fig. 1 is the parts explosion of a kind of LED fluorescent tube of the present utility model;

Fig. 2 is the A partial enlarged drawing of Fig. 1;

Fig. 3 is the front view of LED fluorescent tube shown in Figure 1;

Fig. 4 is the B-B cutaway view of Fig. 3;

Fig. 5 is the D partial enlarged drawing of Fig. 4;

Fig. 6 is the C-C cutaway view Amplified image of Fig. 3;

Fig. 7 is the cross sectional representation of the heat dissipation base in the middle of Fig. 1;

Fig. 8 is the cross sectional representation of the lampshade in the middle of Fig. 1;

Fig. 9 is the floor map of the pad in the middle of Fig. 1.

The specific embodiment

Describe the utility model LED fluorescent tube in detail below in conjunction with accompanying drawing.In institute's drawings attached, identical Reference numeral will be used to refer to identical parts, feature or structure.Embodiment introduce in the process at concrete structure or parts, only understand the reference illustration of the utility model LED fluorescent tube as those skilled in the art, those skilled in the art can also design or technical scope or the various of technical spirit that patterning is not exceeded the utility model LED fluorescent tube are equal to or the similar techniques structure under the enlightenment of the technical scheme that embodiment describes.Thus, be unfavorable if limit the protection domain that the claim of the utility model LED fluorescent tube includes with this exemplary illustration.The technical scheme that is equal to or is similar to the utility model LED fluorescent tube still belongs to the protection domain of the claim of the utility model LED fluorescent tube.

Shown in Fig. 1～9, a kind of LED fluorescent tube 10 of the present utility model comprises that two connect pad 2, heat dissipation base 3, lamp plate 4, the lampshade 5 of light-permeable, encapsulation that attaching plug that power supplys use 1, two be used to prevent that failure welding from taking place and are arranged on a plurality of LED bulbs 6 on the lamp plate 4 and unshowned built-in drive etc., heat dissipation base 3 and lampshade 5 have constituted the shell of fluorescent tube 10, attaching plug 1 is arranged on the two ends of fluorescent tube 10, has constituted the end cap of fluorescent tube 10.Attaching plug 1 is electrically connected with circuit on built-in drive and the lamp plate 4, and the circuit on the lamp plate 4 is electrically connected with the pin of each LED bulb 6.Lamp plate 4 is rectangular, a plurality of LED bulbs 6 along the length direction of lamp plate 4 be linear array be arranged in this lamp plate 4 towards the surface of lampshade 5, promptly on the front of lamp plate 4.Lampshade 5 is made of plastics, and is arranged on a side of the thickness direction of lamp plate 4, i.e. the face side of lamp plate 4; From cross section, this lampshade 5 is semicircular in shape roughly, and two ends form the tenon 51 that extends along lampshade 5 length directions respectively towards lampshade 5 center of circle direction projectioies.Heat dissipation base 3 is that it is arranged on the opposite side of the thickness direction of lamp plate 4 by the integrated aluminum base of aluminium extracting mold, i.e. the rear side of lamp plate 4; The end face of heat dissipation base 3 is the fixing lamp plate stationary plane 31 of lamp plate 4, can lamp plate 4 be installed on this lamp plate stationary plane 31 by modes such as screw connections, coat thermal paste between the back side of lamp plate 4 and the lamp plate stationary plane 31, so that closely contact between lamp plate 4 and the heat dissipation base 3, reach better heat-conducting effect, also make the connection between them more firm simultaneously.Be formed with on the pad 2 and be used to the spacing projection 21 that prevents that lamp plate 4 from coming off from heat dissipation base 3.

Referring to Fig. 7, heat dissipation base 3 surrounds a tubular structure by roof 32, diapire 33 and two

sidewalls

34,35, and wherein, roof 32 is circular arc, and diapire 33 and two

sidewalls

34,35 are plate shaped, and two

sidewalls

34,35 are respectively perpendicular to diapire 33.The aluminium thickness that forms roof 32, diapire 33 and two

sidewalls

34,35 of this heat dissipation base 3 is 0.6mm～0.8mm, is preferably 0.7mm, and the heat conductivity of the ultra-thin aluminium of this thickness is higher, helps heat radiation.The inside of heat dissipation base 3 forms heat radiation inner chamber 36, and such structure can increase the surface area of heat dissipation base 3, helps heat radiation.In order further to increase area of dissipation, on the outer surface of two

sidewalls

34,35, also be formed with a plurality of radiating fins 37 respectively, the radiating fin 37 of both sides is symmetrically distributed, and is parallel to each other between a plurality of radiating fins 37 of each side and respectively perpendicular to the length direction of heat dissipation base 3.Like this, under identical appearance and size, heat dissipation base 3 has bigger area of dissipation, can obtain better radiating effect, thereby has promoted the service life of LED fluorescent tube.Respectively form a groove 38 that can cooperate between two radiating fins 37 on each side top,, can realize relative slip along its length between heat dissipation base 3 and the lampshade 5, be convenient to carry out winding by cooperating of tenon 51 and groove 38 with tenon 51.

Claims

1. LED fluorescent tube comprises:

Lamp plate, it is provided with a plurality of LED bulbs;

Lampshade is positioned at the face side of described lamp plate;

Heat dissipation base is positioned at the rear side of described lamp plate;

Attaching plug is arranged on the two ends of this fluorescent tube;

Wherein, the mutual winding of described lampshade and heat dissipation base, described lamp plate is fixed on the heat dissipation base;

It is characterized in that:

Be formed with a plurality of radiating fins on the outer surface of described heat dissipation base.

2. LED fluorescent tube according to claim 1 is characterized in that:

3. LED fluorescent tube according to claim 1 is characterized in that:

The aluminum base that described heat dissipation base is formed in one.

4. LED fluorescent tube according to claim 3 is characterized in that:

Described heat dissipation base surrounds a tubular structure by roof, diapire and two sidewalls, its inner heat radiation inner chamber that forms; Wherein, described roof is circular arc, and described diapire and two sidewalls are plate shaped, and two sidewalls are respectively perpendicular to diapire; Described a plurality of radiating fin is distributed in the outer surface of described two sidewalls.

5. according to claim 3 or 4 described LED fluorescent tubes, it is characterized in that:

The aluminium thickness that forms described heat dissipation base is 0.6mm～0.8mm.

6. LED fluorescent tube according to claim 5 is characterized in that:

The aluminium thickness that forms described heat dissipation base is 0.7mm.

7. LED fluorescent tube according to claim 1 is characterized in that:

8. LED fluorescent tube according to claim 1 is characterized in that:

Described a plurality of LED bulb is the front that linear array is arranged in this lamp plate along the length direction of described lamp plate.

9. LED fluorescent tube according to claim 1 is characterized in that:

Described lampshade is a plastic lamp shade.

10. LED fluorescent tube according to claim 1 is characterized in that:

Scribble thermal paste between the lamp plate stationary plane of the back side of described lamp plate and described heat dissipation base.