CN201964215U

CN201964215U - High-power LED lamp

Info

Publication number: CN201964215U
Application number: CN2011201025703U
Authority: CN
Inventors: 程文云
Original assignee: Individual
Current assignee: PUJIANG HENGDA PHOTOELECTRIC Co Ltd
Priority date: 2011-04-08
Filing date: 2011-04-08
Publication date: 2011-09-07
Anticipated expiration: 2021-04-08

Abstract

The utility model relates to a novel lighting appliance, particularly to a high-power LED lamp. The high-power LED lamp comprises high-power LEDs (1), a PCB (2) and an aluminum base (7), wherein the LEDs (1) are arranged on the PCB (2) in two rows so as to form a long strip-shaped luminous body; the base (7) is a long tube with an arched section; a heat dissipation cavity (8) is formed in the long tube; and the PCB (2) is fixedly arranged on the outer surface of the bowstring of the base (7). The aluminum base coordinates with the heat dissipation cavity, and can quickly diffuse the heat generated by the LEDs, so that the service life of the lamp is greatly prolonged; the high-power LED lamp is additionally provided with a lampshade, thereby effectively protecting the LEDs from external environmental damage; the arrangement of a step-down transformer keeps the working voltage stable, as well as preventing the LEDs from being burnt by high voltage; and the step-down transformer is coated with sheathing paper, thereby preventing the step-down transformer from accelerating damage on high-temperature working environments.

Description

A kind of great power LED fluorescent tube

Technical field

The utility model relates to a kind of novel lighting apparatus, relates in particular to a kind of great power LED fluorescent tube.

Background technology

LED has characteristics such as long service life, response time weak point, opto-electronic conversion usefulness height, energy-conserving and environment-protective, is widely used in fields such as various indications, demonstration, decoration, backlight, illumination.Those skilled in the art are well-known, when LED lights, because constantly assembling, heat cause temperature progressively to raise, as effectively not dispelling the heat, corresponding the successively decreasing of luminous light intensity meeting of LED under the light decay effect, when especially a plurality of LED were combined into the LED lamp, heat accumulation was faster and then produce high temperature, caused the shortening in service life of LED lamp.

The illumination of public place at present such as corridor lamp etc., is adopted incandescent lamp or fluorescent lamp basically, because the switch number of times is frequent, so can sharply shorten service life, though incandescent lamp or fluorescent lamp power are big, the illumination deficiency must cause waste of energy.Therefore the LED lamp that is combined by LED has had the trend that progressively replaces incandescent lamp or fluorescent lamp, especially the high-brightness LED lamp that combines of high-power LED, its application prospect is very extensive, but the heat radiation of this high-brightness LED lamp but is a technical barrier of always constantly mentioning.

The utility model content

The utility model provides a kind of great power LED fluorescent tube, its brightness height, and good illumination effect, and excellent radiation performance, service life is lasting.In order to realize the foregoing invention purpose, the utility model has adopted following technological means:

A kind of great power LED fluorescent tube comprises the pedestal of high-power LED, pcb board and aluminium matter; Described LED is installed on and is two row's arrangements on the pcb board, forms the strip illuminator; Described pedestal is that the cross section is arc long tube, its inner heat radiation chamber that forms, and described pcb board is fixedly installed in the bowstring outer surface of pedestal.

The Transparent lamp shade of sealing pcb board is installed on the described pedestal;

The two ends of dazzling of described pedestal are provided with draw-in groove, and described lampshade is the semicircle arcuation, and its two ends is provided with bayonet socket, and described bayonet socket is buckled in the draw-in groove;

On the described pcb board reducing transformer is installed, the circuit access port of illuminator and the output of reducing transformer are connected, and the input of reducing transformer is connected the external high pressure circuit;

Described reducing transformer is wrapped with sheathing paper.

The beneficial effects of the utility model are: aluminium matter pedestal adds the cooperation heat radiation in heat radiation chamber, can distribute the heat that LED produces rapidly, makes fluorescent tube increase greatly service life; Add lampshade, effectively protected LED not damaged by external environment; The setting of reducing transformer had both kept the stable of operating voltage, had prevented that also LED from being burnt out by high voltage; Reducing transformer is wrapped up in sheathing paper outward, has avoided the acceleration damage of reducing transformer because of high-temperature work environment.

Description of drawings

Fig. 1 is the structural representation of a kind of great power LED fluorescent tube of the utility model;

Fig. 2 is the A-A cutaway view among Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing, the preferred implementation of a kind of great power LED fluorescent tube of the utility model is made detailed description:

As depicted in figs. 1 and 2, this great power LED fluorescent tube mainly is made of pedestal 7, pcb board 2 and the LED1 that is installed on the pcb board 2.Pedestal 7 is that a cross section is semicircular long tube, adopts aluminium to make, and its inside is hollow, becomes the heat radiation chamber 8 of a tubulose, and the bowstring two ends of pedestal 7 are provided with the draw-in groove 71 of indent.Pcb board 2 is elongated, and its width is slightly less than the bowstring length of pedestal 7, the equal in length of its length and pedestal 7, and pcb board 2 usefulness heat conductive silica gels stick on the bowstring outer surface of pedestal 7.

As shown in Figure 1, the LED1 that divides two rows that 1 watt of 100 power have been installed on the side of pcb board 2, and then form the illuminator of strip, only show 50 among the figure.With LED1 a reducing transformer 3 is installed side by side on the pcb board 2,220 volts household voltage can be dropped to 32 volts, the output of reducing transformer 3 and the main circuit of LED1 are connected, and input is connected domestic circuit, reducing transformer 3 is wrapped with sheathing paper, is damaged by high temperature in order to prevent reducing transformer 3.

As shown in Figure 2; a transparent lampshade 6 is installed on the pedestal 7; the employing transparent resin is made; be used for seal protection pcb board 2; 6 one-tenth semicircular arcs of lampshade, its two ends are provided with the bayonet socket 61 of relative convex, and bayonet socket 61 matches with the draw-in groove 71 of pedestal 7; bayonet socket 61 is buckled in the draw-in groove 71, thereby lampshade is installed on the pedestal 7.After installing lampshade 6, lamp tube ends fixedly mounts end cap 4 again, and end cap 4 is a circular lid, is provided with fluorescent tube is concentric, and two connection-pegs 5 are set on the end cap 4, connects the input of reducing transformer 3 respectively.

Aluminium matter pedestal 7 adds the cooperation heat radiation in heat radiation chamber 8, can distribute the heat that LED1 produces rapidly, makes fluorescent tube increase greatly service life; Lampshade 6 is installed on the pedestal 7, has effectively been protected LED1 not damaged by external environment; The setting of reducing transformer 3 had both kept the stable of operating voltage, had prevented that also LED1 from being burnt out by high voltage; Wrap up in sheathing paper outside the reducing transformer 3, avoided the acceleration damage of reducing transformer 3 because of high-temperature work environment.

Claims

1. a great power LED fluorescent tube is characterized in that: the pedestal (7) that comprises high-power LED (1), pcb board (2) and aluminium matter; Described LED(1) is installed on and is two rows on the pcb board (2) and arranges, form the strip illuminator; Described pedestal (7) is that the cross section is arc long tube, its inner heat radiation chamber (8) that forms, and described pcb board (2) is fixedly installed in the bowstring outer surface of pedestal (7).

2. a kind of great power LED fluorescent tube according to claim 1 is characterized in that: the Transparent lamp shade (6) that sealing pcb board (2) is installed on the described pedestal (7).

3. a kind of great power LED fluorescent tube according to claim 2, it is characterized in that: the string two ends of described pedestal (7) are provided with draw-in groove (71), described lampshade (6) is the semicircle arcuation, and its two ends is provided with bayonet socket (61), and described bayonet socket (61) is buckled in the draw-in groove (71).

4. a kind of great power LED fluorescent tube according to claim 3, it is characterized in that: reducing transformer (3) is installed on the described pcb board (2), the output of the circuit access port of illuminator and reducing transformer (3) is connected, and the input of reducing transformer (3) is connected the external high pressure circuit.

5. a kind of great power LED fluorescent tube according to claim 4 is characterized in that: described reducing transformer (3) is wrapped with sheathing paper.