CN2833321Y

CN2833321Y - LED lamp

Info

Publication number: CN2833321Y
Application number: CNU2005200460001U
Authority: CN
Inventors: 彭晓东; 冯文泉; 林翔
Original assignee: SHANGHAI LANBAO PHOTOELECTRIC MATERIALS CO Ltd
Current assignee: SHANGHAI LANBAO PHOTOELECTRIC MATERIALS CO Ltd
Priority date: 2005-10-28
Filing date: 2005-10-28
Publication date: 2006-11-01
Anticipated expiration: 2015-10-28

Abstract

The utility model relates to an LED lamp which comprises assembly holes, an upper cover, a lamp base, screws, LED lamp beads, a glass cover, and power input and output wires, wherein the edge of the upper cover is provided with the assembly holes, the lamp beads are arranged on the lamp base, the upper cover is arranged on the lamp base and the glass cover is arranged on the upper cover. The utility model is characterized in that at least three LED lamp beads are arranged on a circuit board, the lower surface of the circuit board is provided with a power supply cover and a switching power supply which is respectively connected with the circuit board and the power input and output wires. The utility model has the advantages of high brightness, long service life, fast heat radiation and energy saving.

Description

A kind of LED light fixture

Technical field

The utility model relates to a kind of LED light fixture, can be used for the brightening of urban green space, square, factory, school, is particularly useful for the brightening of the environment of inclement condition as the highway that borders on the sea, seabeach, marine bridge, island, belongs to technical field of lamps.

Background technology

Led light source is the product that the development of semiconductive luminescent materials technology high-speed and " green illumination " notion progressively are rooted in the hearts of the people in the application of lighting field." green illumination " is the new ideas that external lighting field proposed at the end of the eighties in last century, and the enforcement of China's " Green Lighting Project " starts from 1996.The important step that realizes this plan will develop and promote exactly efficiently, the energy-saving illumination utensil, and the electricity consumption that saves lighting reduces environment and light pollution, sets up the illuminator of high-quality and efficient, economic comfortable, safe and reliable, a useful environment.

LED is as semiconductor solid-state " cold " light source, have energy-efficiently, the long-life is low safeguards that environment-friendly type is pollution-free, characteristics such as response speed is fast, reliability height, but it is indoor that present LED lamp all is used for, and has only one to two lamp pearl in the bulb, light flash, power supply adopts the doube bridge rectifier, brightness is not enough, and heat-sinking capability is poor, and service life is not long.

Summary of the invention

The purpose of this utility model is that a kind of brightness of invention is big, long service life, energy-conservation LED light fixture.

For realizing above purpose, the technical solution of the utility model provides a kind of LED light fixture, comprise pilot hole, go up housing, lamp base, screw, LED lamp pearl, cloche, power supply input-output line, cover rim is provided with pilot hole, the lamp pearl is located on the lamp base, loam cake covers on the lamp base, cloche is located on the housing, it is characterized in that, at least three LED lamp pearls are located on the circuit board, be provided with power supply lid and Switching Power Supply below the circuit board, Switching Power Supply is connected with the power supply input-output line with circuit board respectively.

Described circuit board is provided with the LED lamp pearl group of 50 groups of parallel connections, and every group is composed in series by 5 LED lamp pearls and 1 180 ohm paster current-limiting resistance playing the current-limiting protection effect, and Switching Power Supply is organized with the LED lamp pearl of 50 groups of parallel connections and is connected; Described each parts tighten up by screw, and its bonding part is come bonding and sealing by the T381 silica gel of waterproof.

The utility model adopts can be so that the sealing of the connector between Switching Power Supply and the external power cord be good with the thermal grease sealing at the Switching Power Supply place, thereby reach the purpose of waterproof, application switch power supply but not rectifier can guarantee that the voltage of the utility model supply voltage output is stabilized in about 18 ± 0.5V, so just can avoid the instability of external voltage well and cause infringement to the LED lamp.

The utility model has the advantages that:

1. adopt antistatic effect to reach the above die chip of ESD100V, the tube core glow color comprises indigo plant, green, red, yellow, seven coloured silks;

2. power supply adopts Switching Power Supply but not the doube bridge rectifier;

3. use the design segment circuit, whole 250 lamp pearls are divided into 50 groups of shunt that are independent of each other mutually, and intensity of light requires to make the people to see beyond 3km;

4. oneself research and development is made the PBC circuit board and is improved heat-sinking capability;

5. use whole DC current (13mA) to reduce load, guarantee the life-span than design standard electric current (20mA) low 30%;

6. its bright decay must be less than 5% to increase ageing time and load current check (30mA 240 hours);

7. with the Hi-pot test controller impact resistance of Switching Power Supply, the final use light fixture that can resist uncertain voltge surge, the life-span of improving whole light fixture;

8. adopt splendid fluid sealant and the underwater paint of performance, cooperated technique for producing accomplishes that waterproof prevents salt fog;

9. under the situation that light fixture was worked 12 hours every day, can continuous operation 3 years, the decay of light intensity was not more than 30% in 3 years.

Description of drawings

Fig. 1 is a kind of LED fitting structure schematic diagram;

Fig. 2 is a kind of LED light fixture cutaway view;

Fig. 3 is the circuit board schematic diagram;

Fig. 4 is embodiment 2 structural representations;

Fig. 5 is embodiment 3 structural representations.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Embodiment 1

As Fig. 1; shown in 2; be a kind of LED fitting structure schematic diagram; described LED light fixture; by pilot hole 1; last housing 2; lamp base 3; screw 4; LED lamp pearl 5; cloche 7; power supply input-output line 10 is formed; the be complementary environmental decoration light fixture of the shield shape of forming a sealing of last housing 2 and lamp base 3; can be called for short the shield lamp; last housing 2 is the aluminium cover; its edge is provided with pilot hole 1; lamp pearl 5 is located on the lamp base 3; last housing 2 is located on the lamp base 3; cloche 7 is located on the housing 2, and described circuit board 6 is provided with 5 groups on the LED lamp pearl of 50 groups of parallel connections, and every group is composed in series by 5 LED lamp pearls 5 and 1 180 ohm paster current-limiting resistance playing the current-limiting protection effect; as shown in Figure 3; Switching Power Supply 9 is connected for 5 groups with the LED lamp pearl of 50 groups of parallel connections, is provided with power supply lid 8 and Switching Power Supply 9 below the circuit board 6, and Switching Power Supply 9 is connected with power supply input-output line 10 with circuit board 6 respectively; described each parts tighten up by screw 4, and its bonding part is come bonding and sealing by the T381 silica gel of waterproof.

Embodiment 2

As shown in Figure 4, be embodiment 2 structural representations, the be complementary environmental decoration light fixture of the fan shape of forming a sealing of last housing 2 and lamp base 3, other is the same with embodiment 1.

Embodiment 3

As shown in Figure 5, be embodiment 3 structural representations, the be complementary environmental decoration light fixture of the regular hexagon shape of forming a sealing of last housing 2 and lamp base 3, other is the same with embodiment 1.

Claims

1. LED light fixture, comprise pilot hole (1), last housing (2), lamp base (3), LED lamp pearl (5), cloche (7), power supply input-output line (10), loam cake (2) edge is provided with pilot hole (1), lamp pearl (5) is located on the lamp base (3), last housing (2) is located on the lamp base (3), cloche (7) is located on the housing (2), it is characterized in that, at least three LED lamp pearls (5) are located on the circuit board (6), be provided with power supply lid (8) and Switching Power Supply (9) below the circuit board (6), Switching Power Supply (9) is connected with power supply input-output line (10) with circuit board (6) respectively.

2. a kind of LED light fixture according to claim 1 is characterized in that, described upward housing (2) is the aluminium cover.

3. a kind of LED light fixture according to claim 1; it is characterized in that; described circuit board (6) is provided with LED lamp pearl (5) group of 50 groups of parallel connections; every group is composed in series by 5 LED lamp pearls (5) and 1 180 ohm paster current-limiting resistance playing the current-limiting protection effect, and Switching Power Supply (9) is connected with LED lamp pearl (5) group of 50 groups of parallel connections.

4. a kind of LED light fixture according to claim 1 is characterized in that described each parts tighten up by screw (4), and its bonding part is come bonding and sealing by the T381 silica gel of waterproof.

5. a kind of LED light fixture according to claim 1 is characterized in that, described upward housing (2) and lamp base (3) are complementary and are shield shape.

6. a kind of LED light fixture according to claim 1 is characterized in that, described upward housing (2) and lamp base (3) are complementary for fan-shaped.

7. a kind of LED light fixture according to claim 1 is characterized in that, described upward housing (2) and lamp base (3) are complementary and are regular hexagon.