CN203771089U

CN203771089U - Tubular LED lamp

Info

Publication number: CN203771089U
Application number: CN201320892383.9U
Authority: CN
Inventors: 巫世贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2014-08-13
Anticipated expiration: 2023-12-31

Abstract

The utility model relates to a LED discloses a tubular LED lamp, establish the two end covers at glass pipe both ends including glass pipe and sealed lid, interior pipe wall one side of glass pipe is equipped with the metal level along the axial, the laminating of metal level surface has the PCB base plate, PCB base plate upper surface subsides are equipped with a plurality of LED, an at least electric connection end cover of PCB base plate. The utility model has the advantages of fast heat dissipation, improved luminous efficiency of the lamp tube, increased aesthetic degree of the lamp tube and avoiding of reverse installation.

Description

Tubular LED lamp

Technical field

The utility model relates to LED lamp, especially relate to a kind of simple in structure, can quick heat radiating, can improve fluorescent tube luminous efficiency, can increase the tubular LED lamp of the aesthetics of fluorescent tube.

Background technology

LED has advantages such as long-life, low-power consumption, high efficiency.Recently, occurred more and more LED-based illuminating products on market, wherein of greatest concern is the product for general lighting.LED fluorescent tube is expected to replace existing fluorescent tube and becomes the major product of following illumination.What at present, LED fluorescent tube adopted is the form of LED array.Because LED is spot light, it is even that the light distribution of LED fluorescent tube is not so good as existing fluorescent tube.Due to the light skewness on fluorescent tube, the light that existing LED fluorescent tube sends there will be the problem of " some hot spot ".Another problem is heat management.LED chip caloric value is large, needs well heat radiation to ensure its optical property and service life.

The structure that is traditional LED fluorescent tube is that the pcb board that is pasted with LED is contained in transparent PC plastic cylinder.PC plastic cylinder two is by end cap seal, and is connected with VDD-to-VSS line by the electrode on end cap.In this structure, the advantage arranging is like this to be not easy to damage, but because plastics PC material light transmission is poor, lighting angle is also little, and non-uniform light, for improving its luminous uniformity, adopt the surface of the light tube of roughening or install astigmatism plate additional, can bring the decay of light efficiency still all; And it is bad to dispel the heat, therefore must be in plastic outer tube inside or end the radiator that aluminum alloy materials is made is set, heat could be distributed, thereby ensure security performance and the service life of LED lamp.But because needs additionally arrange radiator, therefore the cost compare of this LED lamp is high, and be subject to certain impact service life.

Utility model content

The problem that uses plastics fluorescent tube to bring for solving existing tubular LED lamp, the utility model object be to provide a kind of simple in structure, can quick heat radiating, can improve fluorescent tube luminous efficiency, can increase fluorescent tube aesthetics, can avoid filling reciprocal tubular LED lamp.

The utility model is realized by following technical measures, a kind of tubular LED lamp, comprise that glass tube and seal cover are located at two end caps at glass tube two, inner tubal wall one side of described glass tube is provided with metal level vertically, described layer on surface of metal is fitted with PCB substrate, described PCB upper surface of base plate is pasted with multiple LED, and described PCB substrate is at least electrically connected an end cap.

As a kind of optimal way, other position that the inner tubal wall of described glass tube removes metal level is provided with light diffusion layer.

As a kind of optimal way, described light diffusion layer is made up of light spread powder.

As a kind of optimal way, the length of described metal level is identical with glass tube, and the radian of described metal level is the 1/3-2/3 of glass tube inner circle.

As a kind of optimal way, described metal level is aluminum metal layer, aluminium alloy layer, silver-colored ashbury metal layer, silver metal layer, copper metal layer.

As a kind of optimal way, the cross section of described glass tube is circular, oval or square.

The utility model is fixed on the back side of PCB substrate that is pasted with LED on the surface of metal level, when LED lamp is luminous, the LED heat producing of working is passed to metal level by its substrate, because of the thermal conductivity of metal level good, heat rapid dispersion can be conducted to other position to glass tube, thereby reach the effect of quick heat radiating; Meanwhile, because the surface of thin metal level is the minute surface that reflective function is good, the light that it can scatter to LED fluorescent tube upper surface reflects downwards, and the luminous efficiency that has improved fluorescent tube is high; By the surface that is fixed on lighttight metal level of PCB substrate, from managing, can't see mixed and disorderly PCB substrate, what see is the metal level of smooth beauty, thereby has increased the attractive in appearance of fluorescent tube; Because the luminous of fluorescent tube of LED lamp is that tool is directive, be provided with metal level at shady face, there is the directiveness in orientation at installation fluorescent tube, avoid anti-loaded direction.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the cross section schematic diagram of the utility model one embodiment;

Fig. 3 is the cross section schematic diagram of another embodiment of the utility model.

Detailed description of the invention

Below in conjunction with embodiment and contrast accompanying drawing the utility model is described in further detail.

A kind of tubular LED lamp, with reference to figure 1, Fig. 2 and Fig. 3, comprise that glass tube 1 and seal cover are located at two end caps 3 at glass tube 1 two, inner tubal wall one side of described glass tube 1 is provided with metal level 2 vertically, described metal level 2 surfaces are fixedly fitted with PCB substrate 4 by thermal paste 6, described PCB substrate 4 upper surfaces are pasted with multiple LED5, and described PCB substrate 4 is at least electrically connected an end cap.In the time that LED5 is luminous, the LED5 heat producing of working is passed to metal level 2 by its substrate 4, good because of the thermal conductivity of metal level 2, heat rapid dispersion can be conducted to other position to glass tube 1, thereby reach the effect of quick heat radiating; Meanwhile, because the surface of thin metal level 2 is the minute surface that reflective function is good, the light that it can scatter to LED fluorescent tube upper surface reflects downwards, and the luminous efficiency that has improved fluorescent tube is high; By the surface of lighttight being fixed on of PCB substrate metal level 2, from managing, can't see mixed and disorderly PCB substrate, what see is the metal level of smooth beauty, thereby has increased the attractive in appearance of fluorescent tube; Because the luminous of fluorescent tube of LED lamp is that tool is directive, be provided with metal level 2 at shady face, there is the directiveness in orientation at installation fluorescent tube, avoid anti-loaded direction.

A kind of tubular LED lamp of the present utility model, please refer to Fig. 1 and Fig. 3, and on the basis of previous technique scheme, other position that the inner tubal wall of glass tube 1 removes metal level 2 is provided with light diffusion layer 7.Utilize the dispersion effect of light diffusion layer 7 to solve LED spot light LED non-uniform light, increased the luminous uniformity, avoid producing " some hot spot ".

A kind of tubular LED lamp of the present utility model, on the basis of previous technique scheme, concrete light diffusion layer 7 is to be made up of light spread powder.

A kind of tubular LED lamp of the present utility model, with reference to figure 1, Fig. 2 and Fig. 3, on the basis of previous technique scheme, the length of metal level is identical with glass tube, and the radian of described metal level 2 is the 1/3-2/3 of glass tube inner circle.

A kind of tubular LED lamp of the present utility model, with reference to figure 1, Fig. 2 and Fig. 3, on the basis of previous technique scheme, metal level 2 is aluminum metal layer, aluminium alloy layer, silver-colored ashbury metal layer, silver metal layer, copper metal layer.

A kind of tubular LED lamp of the present utility model, with reference to figure 1, Fig. 2 and Fig. 3, on the basis of previous technique scheme, the cross section of glass tube 1 is circular, oval or square.

More than that the utility model tubular LED lamp is set forth; be used for helping to understand the utility model; but embodiment of the present utility model is not restricted to the described embodiments; anyly do not deviate from the change done under the utility model principle, modification, substitute, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.

Claims

1. a tubular LED lamp, it is characterized in that: comprise that glass tube and seal cover are located at two end caps at glass tube two, inner tubal wall one side of described glass tube is provided with metal level vertically, described layer on surface of metal is fitted with PCB substrate, described PCB upper surface of base plate is pasted with multiple LED, and described PCB substrate is at least electrically connected an end cap.

2. tubular LED lamp according to claim 1, is characterized in that: other position that the inner tubal wall of described glass tube removes metal level is provided with light diffusion layer.

3. tubular LED lamp according to claim 2, is characterized in that: described light diffusion layer is made up of light spread powder.

4. tubular LED lamp according to claim 1 and 2, is characterized in that: the length of described metal level is identical with glass tube, and the radian of described metal level is the 1/3-2/3 of glass tube inner circle.

5. tubular LED lamp according to claim 1 and 2, is characterized in that: described metal level is aluminum metal layer, aluminium alloy layer, silver-colored ashbury metal layer, silver metal layer or copper metal layer.

6. tubular LED lamp according to claim 1 and 2, is characterized in that: the cross section of described glass tube is for circular, oval or square.