CN202756942U

CN202756942U - Light-emitting diode (LED) lamp tube

Info

Publication number: CN202756942U
Application number: CN2012202944381U
Authority: CN
Inventors: 庞桂伟; 唐义国
Original assignee: Shenzhen Top Technology Co Ltd
Current assignee: Shenzhen Top Technology Co Ltd
Priority date: 2012-06-21
Filing date: 2012-06-21
Publication date: 2013-02-27
Anticipated expiration: 2022-06-21

Abstract

A light-emitting diode (LED) lamp tube comprises two luminous tubes, end covers and lamp heads, wherein each luminous tube comprises an outer shell and a substrate, a plurality of parallel ventilating grooves are arranged in the outer side of the outer shell along the axial direction, a plurality of LED light sources are arranged on the substrate, and the substrate is attached to the inner side of the outer shell through heat-conducting glue. When the LED light sources work, generated heat is transmitted to the substrate first and the heat on the substrate is transferred rapidly to the outer shell due to the fact that the substrate is attached to the outer shell through the heat-conducting glue. As the ventilating grooves are arranged in the outer shell, heat dissipating areas are enlarged and air flow is facilitated so that the heat can be taken away faster. Besides, by means of the structure of the two luminous tubes, the lamp tube obtains large illumination, enlarges illumination angels, increases relative surface areas, and is beneficial for heat dissipation. Therefore, the LED lamp tube is good in heat dissipation effect and can prevent temperatures in the lamp tube from being too high.

Description

The LED fluorescent tube

Technical field

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

Background technology

Traditional fluorescent tube is generally fluorescent lamp, containing metal mercury in the fluorescent lamp, and mercury all has largely harm to environment and human body, and therefore, along with the development of lighting engineering, traditional fluorescent lamp is slowly replaced.At present, the substitute that people place high hopes is the LED fluorescent tube, and LED adopts direct drive, and does not need mercury metal or fluorescent material to come auxiliary light emission, brings hope for people explore the novel illumination technology.

Yet single led luminous power is very little, and illumination is limited.Therefore, in order to satisfy lighting demand, traditional LED fluorescent tube generally can integrate a plurality of LED.After a plurality of LED integrated, although illumination increases greatly, problem was also following.The heat that a plurality of LED produce is very large, and the heat radiation of LED fluorescent tube is limited, and this is just so that the excess Temperature of fluorescent tube inside, thereby might affect the life-span of LED.

The utility model content

Based on this, be necessary to provide preferably LED fluorescent tube of a kind of radiating effect.

A kind of LED fluorescent tube comprises:

Two luminous tubes, each luminous tube comprises;

Shell is strip, and the outside of described shell offers a plurality of parallel ventilation slots vertically;

Substrate which is provided with some led light sources, and described substrate is attached at the inboard of described shell by heat-conducting glue;

Translucent cover is fixedly connected with described shell, forms the host cavity of taking in described substrate;

Two end caps are fixedly connected with described shell two ends respectively, are used for sealing described host cavity; And

Lamp holder is fixed on one of them in described two end caps and with described substrate and is electrically connected.

Among embodiment, the cross section of described shell is semicircular arc-shaped therein.

Among embodiment, the bottom surface of described a plurality of ventilation slots all is positioned at same plane therein.

Among embodiment, the material of described translucent cover is Merlon therein.

Among embodiment, the cross section of described translucent cover is semicircular arc therein.

Among embodiment, described shell edge is provided with draw-in groove therein, and the edge of described translucent cover is provided with buckle, and described buckle engages with described draw-in groove, so that described translucent cover and described shell are fixed.

Among embodiment, described driving power is contained in the described lamp holder therein, and described lamp holder is electrically connected with described substrate by described driving power, and described driving power is used to the LED on the described substrate that the galvanic current pressure is provided.

Above-mentioned LED fluorescent tube comprises two luminous tubes, and luminous tube comprises shell and substrate.The outside of shell offers a plurality of parallel ventilation slots vertically, and substrate is provided with some led light sources, and substrate is attached at the inboard of shell by heat-conducting glue.When led light source was worked, the heat of generation at first was transferred on the substrate, and substrate and shell are bonding by heat-conducting glue, so the heat on the substrate is transferred on the shell again very soon.Owing to offering ventilation slot on the shell, in increasing heat radiation area, also helping Air Flow, thereby can take away faster heat.And, adopt the structure of two luminous tubes can obtain larger illumination, can increase again the angle that enlarges illumination, increase simultaneously relative surface area, thereby be conducive to dissipation of heat.Therefore, the radiating effect of above-mentioned LED fluorescent tube is better, can effectively avoid its inner excess Temperature.

Description of drawings

Fig. 1 is the structural representation of LED fluorescent tube among the embodiment;

Fig. 2 is the structural representation of the luminous tube of LED fluorescent tube shown in Figure 1;

Fig. 3 is the enlarged drawing of the local A of luminous tube shown in Figure 2.

The specific embodiment

For the ease of understanding the utility model, the below is described more fully the utility model with reference to relevant drawings.Provided preferred embodiment of the present utility model in the accompanying drawing.But the utility model can be realized with many different forms, be not limited to embodiment described herein.On the contrary, provide the purpose of these embodiment be make the understanding of disclosure of the present utility model more comprehensively thorough.

Need to prove, when element is called as " being fixed in " another element, can directly can there be element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be to be directly connected to another element or may to have simultaneously centering elements.

Unless otherwise defined, the employed all technology of this paper are identical with the implication that belongs to the common understanding of those skilled in the art of the present utility model with scientific terminology.Employed term is not intended to be restriction the utility model just in order to describe the purpose of specific embodiment in specification of the present utility model herein.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.

See also Fig. 1, the LED fluorescent tube 100 of the utility model preferred embodiment comprises luminous tube 110, end cap 120, lamp holder 130 and driving power 140.Wherein, the quantity of luminous tube 110 is two.Adopt two lamp tube structures, can make the shadow surface of LED fluorescent tube 100 wider on the one hand.On the other hand, can increase relative surface area, when the led light source of distribution equal number, the surface area of two lamp tube structures is larger, thereby helps heat radiation.

See also Fig. 2 and Fig. 3, luminous tube 110 comprises shell 111, substrate 113 and translucent cover 115.Wherein:

Shell 111 roughly is strip, and its cross section is semicircular arc-shaped.The outside of shell 111 offers ventilation slot 1112, and ventilation slot 1112 is along the axial directional distribution of shell 111.Ventilation slot 1112 has many, and many ventilation slots 1112 all are positioned at same plane in the bottom surface of parallel and a plurality of ventilation slots 1112 each other.Ventilation slot 1112 can increase the area of dissipation on shell 111 surfaces.Simultaneously, air can be in ventilation slot 1112 interior circulations, thereby faster heat are taken away.In the present embodiment, shell 111 is aluminium shell.Because aluminium is the good conductor of heat, therefore can faster the heat of luminous tube 110 inside be transmitted to the outside of shell 111.And the density of aluminium is little, can also be with the Weight control of luminous tube 110 in more among a small circle when reaching quick conductive.Be appreciated that in other embodiments, shell 111 is not limited to aluminum, also can adopt other metals to make, or adopts pottery to make.In the present embodiment, also be provided with draw-in groove 1114 on the shell 111, the quantity of draw-in groove 1114 is two, and is located at respectively two edges of shell 111.

Substrate 113 is roughly rectangle.Substrate 113 is provided with some led light sources.Led light source is dismountable to be located on the substrate 113, when wherein having led light source to damage, and the led light source that can more renew.Led light source is integrated in makes the arrangement of led light source tight on the substrate 113, thereby the volume of luminous tube 110 is reduced.Because what luminous tube 110 adopted is led light source.LED is luminous not to need the auxiliary of other specific gas such as mercury, fluorescent material, and therefore, 100 securities of LED fluorescent tube are higher, more environmental protection.Substrate 113 is attached at the inboard of shell 111 by heat-conducting glue.And all fill with heat-conducting glue in the gap between substrate 111 and the shell 113.Because heat-conducting glue can quick conductive, therefore the heat on the substrate 113 can conduct on the shell 111 rapidly.In the present embodiment, substrate 113 is aluminum base plate.Because aluminium is the good conductor of heat, and the density of aluminium is less, thus substrate 113 can fast led light source be worked the time heat of generation be transmitted to shell 111, and can not make the quality of luminous tube 110 excessive.It is pointed out that in other embodiments, substrate 113 is similar with shell 111, can adopt equally other materials to make.

The shape of the shape of translucent cover 115 and shell 111 is similar.The cross section of translucent cover 115 is semicircular arc-shaped, so translucent cover 115 can make the uniform transmission of light.In the present embodiment, translucent cover 115 adopts makrolon material to make.Makrolon material has the advantages such as intensity is high, density is little, therefore, adopts the luminous tube of glass lamp shade to compare with tradition, and the quality of luminous tube 110 is less, antidetonation and impact resistance are better, more conveniently uses and transports.Translucent cover 115 is fixedly connected with shell 111, forms the host cavity of taking in substrate 113.In the present embodiment, the edge of translucent cover 115 is provided with buckle 1152.Buckle 1152 can slip into along an end of draw-in groove 1114, and engages with draw-in groove 1114, thereby translucent cover 115 is fixed on the shell 111.The mode that employing buckle 1152 engages with draw-in groove 1114 is translucent cover 115 fixing and shells 111 fixedly, can conveniently dismantle translucent cover 115.When needs translucent cover 115 need to clean, or certain led light source damages when needing to change on the substrate 113, and buckle 1152 is skidded off in draw-in groove 1114, takes off translucent cover 115, can operate accordingly.It is to be noted, in other embodiments, translucent cover 115 is not limited to achieve a fixed connection with the mode that draw-in groove 1114 cooperates by buckle 1152 with shell 111, can also be by other means, be connected such as the mode that connects by threaded fastener, engage by snap fit and buckle etc.In addition, translucent cover 115 also can omit, and after the omission, can when two luminous tubes 110 are assembled into LED fluorescent tube 100, with a lampshade two luminous tubes, 110 covers be got up.

Please again consult Fig. 1, lamp socket 120 has two, and is fixedly connected with shell 111 two ends respectively.Lamp socket 120 is used for the host cavity of sealed transparent cover 115 and shell 111 formation.Lamp socket 120 also can with translucent cover 115 location, prevent that buckle 1152 from skidding off from draw-in groove 1114.

Lamp holder 130 is fixed in two end caps 120 one of them.Lamp holder 130 is provided with copper pin (figure is mark not), is used for LED fluorescent tube 100 is installed on lamp socket, and lamp socket generally connects AC power.Lamp holder 130 is electrically connected with substrate 113, can be the led light source energy supply on the substrate 113.

Driving power 140 is contained in the lamp holder 130, thereby can effectively reduce the volume of LED fluorescent tube 100.Driving power 2140 all directly is connected with lamp holder 130 and substrate 113, and lamp holder 130 is electrically connected with substrate 113 by driving power 140.Because LED is all by DC powered, so the direct driving LED light source of the alternating current that connects of lamp holder 130.Driving power 140 can be transformed into alternating current constant direct current, thereby presses for the led light source on the substrate 113 provides galvanic current.It is pointed out that in other embodiments, driving power 140 can omit.And a power supply changeover device is set in lamp socket, be used for transferring alternating current to direct current, thereby make lamp holder 130 directly connect direct current.

LED fluorescent tube 100 comprises two luminous tubes 110, and luminous tube 110 comprises shell 111 and substrate 113.The outside of shell 111 offers a plurality of parallel ventilation slots 1112 vertically, and substrate is provided with some led light sources, and substrate 113 is attached at the inboard of shell 111 by heat-conducting glue.When led light source was worked, the heat of generation at first was transferred on the substrate 113, and substrate 113 is bonding by heat-conducting glue with shell 111, so the heat on the substrate 113 is transferred on the shell 111 again very soon.Owing to offering ventilation slot 1112 on the shell 111, in increasing heat radiation area, also helping Air Flow, thereby can take away faster heat.And, adopt the structure of two luminous tubes can obtain larger illumination, can increase again the angle that enlarges illumination, increase simultaneously relative surface area, thereby be conducive to dissipation of heat.Therefore, the radiating effect of LED fluorescent tube 100 is better, can effectively avoid its inner excess Temperature.

The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims

1. a LED fluorescent tube is characterized in that, comprising:

Two luminous tubes, each luminous tube comprises;

2. LED fluorescent tube according to claim 1 is characterized in that, the cross section of described shell is semicircular arc-shaped.

3. LED fluorescent tube according to claim 2 is characterized in that, the bottom surface of described a plurality of ventilation slots all is positioned at same plane.

4. LED fluorescent tube according to claim 1 is characterized in that, the material of described translucent cover is Merlon.

5. LED fluorescent tube according to claim 1 is characterized in that, the cross section of described translucent cover is semicircular arc.

6. LED fluorescent tube according to claim 1 is characterized in that, described shell edge is provided with draw-in groove, and the edge of described translucent cover is provided with buckle, and described buckle engages with described draw-in groove, so that described translucent cover and described shell are fixed.

7. LED fluorescent tube according to claim 1, it is characterized in that, also comprise driving power, described driving power is contained in the described lamp holder, described lamp holder is electrically connected with described substrate by described driving power, and described driving power is used to the LED on the described substrate to provide galvanic current to press.