CN202266861U

CN202266861U - Light-emitting diode (LED) lamp tube

Info

Publication number: CN202266861U
Application number: CN2011203291636U
Authority: CN
Inventors: 王冬雷
Original assignee: Elec Tech International Co Ltd
Current assignee: BENGBU NVC LIGHTING TECHNOLOGY CO., LTD.
Priority date: 2011-09-02
Filing date: 2011-09-02
Publication date: 2012-06-06
Anticipated expiration: 2021-09-02

Abstract

The utility model provides a light-emitting diode (LED) lamp tube, which comprises a support, a face cover, plugs, end covers, a printed circuit board (PCB), an LED and a constant-current power source. The support and the face cover are buckled into a whole, two plugs are respectively assembled with two ends of the support in a lock screw mode or a glue mode, the end covers with metal pins are assembled with the plugs, and the PCB is tightly attached to the support. Heat conduction materials are filled between the PCB and the support to increase heat dissipation, thereby enlarging contact area, effectively reducing heat resistance and prolonging service life of the LED. In addition, the LED lamp tube has compact structure and novel appearance.

Description

The LED fluorescent tube

Technical field

The utility model belongs to LED lighting device technical field, relates in particular to the LED fluorescent tube.

Background technology

Growing along with science and technology; The lighting device technical field is constantly reformed; LED as the 4th generation light source have life-span length, energy-conserving and environment-protective, volume to urinate in many advantages such as product designs, so in the quite long period of history, will be as the main flow of lighting source.The LED fluorescent tube is used widely in developed countries such as America and Europes at present, but also has weak point:

1, higher because of its cost, be difficult to obtain large-scale popularization in developing country, environment for use also is that environment such as market or large-scale assembly hall are applied mostly at present, make the LED fluorescent tube in lighting of home, occupy main status, reducing cost becomes the most important thing;

2, the light source of LED fluorescent tube is a light emitting diode matrix, and electric energy has and is converted into heat energy more than 70%, and it is the theoretical life-span that the LED life-span reaches 100,000 hours, because of the too high life-span of its temperature reduces greatly, so the thermal management technology of LED constantly obtains paying attention to.

3, mostly the design of LED fluorescent tube is the column type structure at present, can't satisfy the user for the diversified requirement of product design.

Summary of the invention

The purpose of the utility model is to provide the LED fluorescent tube, effectively reduces thermal resistance, makes the LED longer service life, and lamp tube structure tightly beats, and cost is minimized.

The utility model is realized through following technical scheme:

The LED fluorescent tube includes: mask part and led light source parts; Wherein, Said mask part includes: have the structure of container of upper opening face shield, be arranged on the support of mask top, two end caps that are positioned at two plugs at face shield two ends and are positioned at two plug outer ends, said end cap, plug, support are with the airtight formation enclosed cavity in the two ends of face shield; The led light source parts include: led light source, pcb board and constant-current supply, and rack-mount in the lump after said led light source is fixed on the pcb board; Constant-current supply is positioned at the sidepiece of enclosed cavity, is electrically connected with led light source.

The beneficial effect of the utility model is following:

The LED fluorescent tube of the utility model is owing to include: mask part and led light source parts; Wherein, Said mask part includes: have the structure of container of upper opening face shield, be arranged on the support of mask top, two end caps that are positioned at two plugs at face shield two ends and are positioned at two plug outer ends, said end cap, plug, support are with the airtight formation enclosed cavity in the two ends of face shield; The led light source parts include: led light source, pcb board and constant-current supply, and rack-mount in the lump after said led light source is fixed on the pcb board; Constant-current supply is positioned at the sidepiece of enclosed cavity, is electrically connected with led light source; Have structure and tightly beat, joint temperature, the advantage that cost is lower, outward appearance is novel.

Description of drawings

Fig. 1 is the overall appearance structural representation of the utility model LED fluorescent tube;

Fig. 2 is the part deployed configuration sketch map of the utility model LED fluorescent tube;

Fig. 3 is the sectional structure sketch map of the utility model LED fluorescent tube.

The specific embodiment

Ask for an interview Fig. 1 to Fig. 3, the open LED fluorescent tube of the utility model includes: mask part and led light source parts; Wherein, Said mask part includes: have the structure of container of upper opening face shield 4, be arranged on the support 3 at face shield 4 tops, two end caps 1 that are positioned at two plugs 2 at face shield 4 two ends and are positioned at two plug 2 outer ends, said end cap 1, plug 2, support 3 are with the airtight formation enclosed cavity in the two ends of face shield 4; The led light source parts include: led light source 7, pcb board 6 and constant-current supply 5 are installed on the support 3 after said led light source 7 is fixed on the pcb board 6 in the lump; Constant-current supply 5 is positioned at the sidepiece of enclosed cavity, is electrically connected with led light source 7.

The cross section of said face shield 4 is adopted semicircle or fan-shaped, perhaps " U " type structure.

Said face shield 4 adopts glass or plastic material to process, and said plastic material is one or more mixing among PC or PMMA or the PP.

Said support 3 is for having the slab construction of draw-in groove, and described support 3 materials are aluminium, copper or aluminium alloy.

Said face shield 4 adopts transparent or semitransparent material to process.

Said face shield 4 fastens with support 3 and is one.

Said plug 2 adopts half round post or sector structure, and set inside has through wires hole; Two plugs 2 are assembled together with the two ends of said support 3 respectively; The plug material is the mixture of plastics such as PC, PMMA, PP or several kinds of plastics.

Said end cap 1 has the pair of conductive contact pin, and end cap and described plug are assembled together; The material of end cap is the mixture of plastics such as PC, PMMA, PP or several kinds of plastics.

Said pcb board 6 is close on the described support through the glue or the mode of locking screw, and described pcb board material is a kind of in FR 4, aluminium, pottery, the composite.

It is interior or external that said constant-current supply 5 is positioned over described plug, and described constant current effect is to change civil power into the needed voltage of described LED operate as normal, electric current.

Said led light source 7 is welded on the pcb board, includes an above LED; Preferably, described LED lines up array.

The output of said constant-current supply is welded to connect through bonding wire and pcb board, and said bonding wire passes the through wires hole of plug; The input electronics line of constant-current supply is welded on the conductive pin of end cap 1.

Specific embodiment:

In order to make the utility model patent more clear, make description of drawings below:

Ask for an interview Fig. 1 to Fig. 3, for improving the deficiency of above LED fluorescent tube, this patent relates to a kind of LED fluorescent tube, has structure and tightly beats, and outward appearance is novel, and lower-cost advantage mainly comprises:

Support, face shield, plug, end cap, pcb board, LED, constant-current supply.

Support and face shield fasten and are one, and plug 1 is equipped in an end of support, and the equipment mode is the mode of lock screw or uses glue, plug 2 to be equipped in the other end of support that the equipment mode is perhaps used glue for the mode of lock screw.Pcb board is close on the support, and contact area is big, effectively reduces thermal resistance, makes the LED longer service life, and this square LED lamp tube structure is tightly beaten the outward appearance novelty.The PCB material is FR 4, aluminium, pottery or composite; LED is welded on the corresponding position of PCB and forms array; When civil power is given LED altogether through the constant current variable-voltage power supply, can be luminous, light reaches illuminating effect through face shield irradiation environment; In order to make the utility model patent more clear, make description of drawings below:

With reference to Fig. 1, Fig. 2 and Fig. 3; The utility model patent discloses the lighting device of LED fluorescent tube, and described LED fluorescent tube comprises end cap 1, plug 2, support 3, face shield 4, constant-current supply 5 and pcb board 6 and led array 7, mode or the practical glue of pcb board 6 through the lock screw also or the method for rubber cushion tightly be locked on the support 3; As preferably; Used glue and rubber cushion have high thermal conductivity, increase contact area, reduce thermal contact resistance.Specify that pcb board 6 is before assembling with support 3, with the LED welding above that; Make LED be arranged in led array 7; And form an electrical loop, external cord is welded on the relevant position of pcb board, with plug and 2 supports, 3 matched togethers; With screw and glue fixing, and bonding wire passed the through wires hole of plug; The other end of bonding wire is welded on the metal ferrule of end cap 1, also can tightly locks on end cap 1 contact pin with the metal screw, end cap 1 is assemblied in the other end of plug 2 again, the assembly structure sketch map is as shown in Figure 3.When giving the energising of end cap 1 metal needle, electric current is transmitted in led array 7 through sealing wire, and described LED fluorescent tube can be luminous, and light reaches illuminating effect through face shield 6.

Above-mentioned listed concrete implementation is nonrestrictive, and to one skilled in the art, in not departing from the utility model scope, various improvement and the variation carried out all belong to the protection domain of the utility model.

Claims

1.LED fluorescent tube includes: mask part and led light source parts; It is characterized in that: said mask part includes: have the structure of container of upper opening face shield (4), be arranged on the support (3) at face shield (4) top, two end caps (1) that are positioned at two plugs (2) at face shield (4) two ends and are positioned at two plugs (2) outer end, said end cap (1), plug (2), support (3) are with the airtight formation enclosed cavity in the two ends of face shield (4); The led light source parts include: led light source (7), pcb board (6) and constant-current supply (5), said led light source (7) are fixed on and are installed in the lump on the support (3) after pcb board (6) is gone up; Constant-current supply (5) is positioned at the sidepiece of enclosed cavity, is electrically connected with led light source (7).

2. LED fluorescent tube as claimed in claim 1 is characterized in that: the cross section of said face shield (4) is adopted semicircle or fan-shaped, perhaps " U " type structure.

3. according to claim 1 or claim 2 LED fluorescent tube, it is characterized in that: said face shield (4) fastens with support (3) and is one.

4. LED fluorescent tube as claimed in claim 3 is characterized in that: said plug (2) adopts half round post or sector structure, and set inside has through wires hole; Two plugs (2) are assembled together with the two ends of said support (3) respectively.

5. LED fluorescent tube as claimed in claim 4 is characterized in that: said support (3) is for having the slab construction of draw-in groove, and described support (3) material is aluminium, copper or aluminium alloy.

6. LED fluorescent tube as claimed in claim 4 is characterized in that: said end cap (1) has the pair of conductive contact pin, and end cap and described plug are assembled together.

7. LED fluorescent tube as claimed in claim 6 is characterized in that: said pcb board (6) is close on the described support through the glue or the mode of locking screw, and described pcb board material is a kind of in FR 4 or aluminium or pottery or the composite.

8. LED fluorescent tube as claimed in claim 6 is characterized in that: it is interior or external that said constant-current supply (5) is positioned over described plug.

9. LED fluorescent tube as claimed in claim 6 is characterized in that: said led light source (7) is welded on the pcb board, includes an above LED; Said LED lines up array.

10. LED fluorescent tube as claimed in claim 6 is characterized in that: the output of said constant-current supply is welded to connect through bonding wire and pcb board, and said bonding wire passes the through wires hole of plug; The input electronics line of constant-current supply is welded on the conductive pin of end cap (1).