CN104989973B - A kind of LED lamp tube - Google Patents

Abstract

An LED lamp tube, including a radiator and a lampshade, the lampshade is connected to the front side of the radiator to form a tube body, the front side of the radiator is provided with a PCB board, and multiple lamps are evenly spaced on the PCB board Each LED chip is provided with a plug at both ends of the tube body. The plug includes a plug shell, and a slider is arranged in the plug shell. The slider is set on the guide post and can be moved along the The guide post moves, the guide post is perpendicular to the PCB board, the slider has an L-shaped step, and the two ends of the PCB board are respectively pressed against the heat sink by the L-shaped step. A helical spring is sleeved on the guide post below the slider, a protruding post is provided on the horizontal plane of the L-shaped step, and holes corresponding to the protruding posts are provided on the heat sink and the PCB board, There is a dial on the slider, and the dial extends to the outside of the plug housing. The invention has the advantage of more convenient assembly.

Description

A kind of LED light tube

technical field

The invention relates to a fluorescent lamp, in particular to an LED lamp tube.

Background technique

At present, as a home lighting fixture used to replace tungsten lamps and fluorescent lamps, LED fluorescent tubes have the advantages of low energy consumption, high light efficiency, no mercury, no radiation pollution, and renewable materials. Today, it is more and more popular with consumers.

The Chinese patent authorization announcement number is CN201439878U, and the utility model patent with the authorization announcement date on April 21, 2010 discloses an LED fluorescent tube, including a lamp board with a plurality of LED bulbs, and a lampshade located on the front side of the lamp board. . The heat dissipation base located on the back side of the lamp board and the power plugs arranged at both ends of the lamp tube, wherein the lampshade and the heat dissipation base are assembled with each other, the lamp board is fixed on the heat dissipation base, and the heat dissipation The outer surface of the base is formed with a plurality of heat dissipation fins. Although the utility model has a larger heat dissipation area under the same external dimensions, the heat dissipation base can obtain a better heat dissipation effect, thereby prolonging the service life of the LED fluorescent tube. However, the manufacture of LED fluorescent tubes with this structure is cumbersome, and multiple screws are required to fix the lamp board on the radiator base, which requires a large amount of time and manpower to process multiple corresponding parts on the lamp board and heat dissipation base. fixing holes, so the manufacturing cost is higher and the assembly is more cumbersome.

Contents of the invention

The technical problem to be solved by the present invention is to provide an easily assembled LED lamp tube.

In order to solve the above-mentioned technical problems, the present invention provides an LED lamp tube, including a radiator and a lampshade, the lampshade is connected to the front side of the radiator and forms a longitudinal tube body, and the front side of the radiator There is a PCB board on the side, and a plurality of LED chips are evenly spaced on the PCB board, and plugs are respectively set on both ends of the tube body, and it is characterized in that: the plug includes a plug shell, and the The plug housing is provided with a slider, the slider is set on the guide post and can move along the guide post, the guide post is perpendicular to the PCB board, and the slider has an L-shaped Steps, the two ends of the PCB board are respectively pressed against the heat sink by L-shaped steps, a coil spring is set on the guide post under the slider, and a convex A post, a hole corresponding to the protruding post is provided on the heat sink and the PCB board, a shifting block is provided on the slider, and the shifting block extends to the outside of the plug housing.

The back side of the PCB board is connected to the front side of the heat sink through a thermally conductive adhesive layer.

A plurality of fins are evenly spaced on the surface of the heat sink.

The outer surface of the radiator is a wavy concave-convex surface.

There are a plurality of through holes on the wall of the radiator.

A fluorescent layer is arranged on the outer surface of the lampshade.

Compared with the prior art, the beneficial effect of the present invention is: since the PCB board in the present invention is fixed on the heat sink by the L-shaped step on the slider without any screws, the assembly of the present invention is more convenient.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

In the figure: radiator 2, lampshade 4, tube body 5, PCB board 6, LED chip 7, plug 8, plug housing 9, slider 10, guide post 12, L-shaped step 13, coil spring 14, convex Column 16, dial block 18.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

Referring to Fig. 1, an LED fluorescent tube of the present invention includes a radiator 2 and a lampshade 4, the lampshade 4 is connected to the front side of the radiator 2 and forms a longitudinally elongated tube body 5, and the radiator 2 The front side of the tube body 5 is provided with a PCB board 6, and a plurality of LED chips 7 for lighting are arranged on the PCB board 6 at even intervals, and a plug 8 is respectively set on both ends of the tube body 5, and the plug 8 includes a plug The head housing 9 is provided with a slider 10 in the plug housing 9, the slider 10 is set on the guide post 12 and can move along the guide post 12, the guide post 12 is perpendicular to the PCB board 6, and the slider 10 There is an L-shaped step 13, and the two ends of the PCB board 6 are respectively pressed against the heat sink 2 by the L-shaped step 13, and a coil spring 14 is set on the guide post 12 below the slider 10, and the horizontal plane of the L-shaped step 13 Protruding posts 16 are provided on the top, and holes corresponding to the protruding posts 16 are provided on the radiator 2 and the PCB board 6. There is a shifting block 18 on the slider 10, and the shifting block 18 extends to the outside of the plug housing 9. Toggle the dial 18 to move the slider 10 along the guide post 12. The specific principle of the present invention is that when assembling, first press the dial 18 to move the slide 10 down to the lowest position along the guide post 12, and then , set the plug housing 9 on both ends of the tube body 5, and then release the shift block 18, the slider 10 will move upward along the guide post 12 under the action of the coil spring, and press the PCB board 6 against the radiator 2 At this time, the horizontal surface of the L-shaped step 13 can prevent the movement of the PCB board 6 in the vertical direction, and the vertical surface of the L-shaped step 13 can prevent the movement of the PCB board 6 in the horizontal direction. The above-mentioned way of fixing the PCB board 6 does not need any screws, so the assembly is more convenient. In addition, a boss 16 is arranged on the horizontal plane of the L-shaped step 13, and a boss corresponding to the boss 16 is arranged on the radiator 2 and the PCB board 6. In this way, when the slider 10 presses against the PCB board 6, the boss 16 can pass through the PCB board 6 and extend into the radiator 2, thereby preventing the plug housing 9 from falling off.

In addition, as shown in FIG. 1, in the present invention, the back side of the PCB board 6 is connected to the front side of the heat sink 2 through a thermally conductive adhesive layer (not shown), so that it can be ensured that there is a gap between the PCB board 6 and the heat sink 2 The larger heat exchange area ensures that the present invention has a better heat dissipation effect. At the same time, in order to further increase the heat dissipation effect of the present invention, a plurality of fins are evenly spaced on the outer surface of the radiator 2. The existence of the plurality of fins enables the present invention to have a larger heat dissipation area, or to The outer surface of the radiator 2 is made into a wave-shaped concave-convex surface, so that the present invention has a larger heat dissipation area, or a plurality of through holes are set on the wall of the radiator 2, so that the through holes can be further improved. Speed up the heat exchange between the inside and outside of the radiator 2, so that the present invention will have a better heat dissipation effect, so that the present invention has a longer service life. A fluorescent layer (not shown) is arranged on the outer surface of the lampshade 4. Due to the existence of the fluorescent layer, after the lamp is extinguished, the fluorescent layer still has afterglow, so that it is convenient for the user to use the afterglow to perform the next action and achieve convenience. user's purpose.

Claims (4)

1. An LED lamp tube, including a radiator (2) and a lampshade (4), the lampshade (4) is connected to the front side of the radiator (2) and forms a longitudinal tube body (5 ), the front side of the heat sink (2) is provided with a PCB board (6), and a plurality of LED chips (7) are evenly spaced on the PCB board (6). Plugs (8) are respectively set at both ends, and the feature is that: the plug (8) includes a plug housing (9), and a slider (10) is arranged in the plug housing (9), so that The slider (10) is set on the guide post (12) and can move along the guide post (12), the guide post (12) is perpendicular to the PCB board (6), and the slider (10 ) has an L-shaped step (13), the two ends of the PCB board (6) are respectively pressed against the heat sink (2) by the L-shaped step, and the guide post under the slider (10) A helical spring (14) is set on (12), a boss (16) is set on the horizontal plane of the L-shaped step (13), and a matching The hole corresponding to the boss (16), the slider (10) has a dial (18), and the dial (18) extends to the outside of the plug housing (9); The back side of the PCB board (6) is connected to the front side of the radiator (2) through a thermally conductive adhesive layer; the surface of the radiator (2) is evenly spaced to form a plurality of cooling fins. 2. The LED lamp tube according to claim 1, characterized in that: the outer surface of the radiator (2) is a wavy concave-convex surface. 3. The LED lamp tube according to claim 1, characterized in that: the wall of the heat sink (2) has a plurality of through holes. 4. The LED lamp tube according to claim 1, characterized in that: a fluorescent layer is arranged on the outer surface of the lampshade (4).