CN201180948Y

CN201180948Y - Energy-saving lamp

Info

Publication number: CN201180948Y
Application number: CNU200820020159XU
Authority: CN
Inventors: 王会军; 林少志
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-07
Filing date: 2008-04-07
Publication date: 2009-01-14
Anticipated expiration: 2018-04-07

Abstract

The utility model discloses an energy-saving lamp which comprises a lamp holder, a lampshade connected with the lamp holder and a plurality of lighting diodes arranged in the lampshade and connected with the lamp holder. A power adapter is arranged on the lamp holder; the power adapter is electrically connected with the lighting diodes; the power adapter comprises an adjustable three-terminal regulator which adopts an LM317 chip. The energy saving lamp adopting the structure has the advantages of simple structure, low cost, long service life, and high electro-optical efficiency. The energy saving lamp is an ideal substitute for the prior lamps.

Description

A kind of electricity-saving lamp

Technical field

The utility model relates to a kind of light fixture, is the high electricity-saving lamp of a kind of energy-saving efficiency specifically.

Background technology

At present, the light fixture of life illumination is based on incandescent lamp, fluorescent lamp and rare-earth trichromatic fluorescent lamp.The usable floor area in general resident room is approximately tens square metres, under the situation that satisfies the brightness of illumination requirement, if use incandescent lamp, then its power should be about 60W, if use fluorescent lamp, then its power should be about 40W, if use the rare-earth trichromatic fluorescent lamp, then its power should just can meet the demands more than 20W, and its weak point is: 1, the incandescent lamp electro-optical efficiency is poor, does not economize on electricity; 2, fluorescent lamp has power savings, but the life-span is shorter; 3, rare-earth trichromatic fluorescent lamp efficient height, but price is expensive, and the life-span is also restricted, in today of energy growing tension, develops a kind of energy-efficient lamp, seems extremely important.

The utility model content

The technical problems to be solved in the utility model is to provide the electricity-saving lamp that a kind of electro-optical efficiency height, operating cost are low, the life-span is long at above-mentioned deficiency.

For solving the problems of the technologies described above, this electricity-saving lamp comprises lamp socket, is connected the lampshade on the lamp socket, and its design feature is: be provided with a plurality of light emitting diodes that are installed on the lamp socket in lampshade, also be provided with power supply changeover device on the lamp socket, power supply changeover device is electrically connected with light emitting diode.

Power supply changeover device is converted to the DC voltage that suitable LED power source requires with the electric main of 220V, and this DC voltage is added to the two ends of light emitting diode, and to the light emitting diode power supply, light emitting diode just can give out great brilliancy; The quantity of light emitting diode is many more, and its brightness is high more, and power consumption also increases relatively; Since adopt light emitting diode as the electric light conversion element, the electro-optical efficiency height, and energy-saving effect is apparent, this electricity-saving lamp of a 5W, be equivalent to the brightness of 40W fluorescent lamp, also save about 78%, can be country and save a large amount of electric energy than present rare-earth trichromatic fluorescent lamp.Use light emitting diode as light-emitting component, long service life can reach more than 50,000 hours; How much the cost of a light emitting diode is about even several sharing money, more much higher than the cost performance of fluorescent lamp and rare-earth trichromatic fluorescent lamp.

As improvement, adjustable for the output voltage stabilization that makes power supply changeover device, power supply changeover device adopts three-terminal voltage regulator, and three-terminal voltage regulator adopts the LM317 chip.When needs improve the supply voltage of light emitting diode, can adjust the adjustment resistance of LM317, the output voltage of LM317 is suitably heightened, perhaps when the quantity of light emitting diode increases, also need to heighten the output voltage of LM317, otherwise, the output voltage of LM317 is turned down.

In sum, adopted the electricity-saving lamp of this structure, cost is low, the life-span is long, electro-optical efficiency is high, is the desirable substitute products of present lighting, is the environmental protection electric light source.

Description of drawings

In conjunction with the accompanying drawings the utility model is described in further detail:

Fig. 1 is the structural representation of electricity-saving lamp;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the electrical schematic diagram of electricity-saving lamp.

Among the figure: 1 is lamp socket, and 2 is lampshade, and 3 is light emitting diode, and 4 is power supply changeover device, and F is a fuse, and T is a transformer, and Q is a rectifier bridge, and C1, C2 are filter capacitor, and IC is a three-terminal voltage regulator, and R1 is a divider resistance, and R2 is a variable resistor.

The specific embodiment

As shown in Figure 1 and Figure 2, this electricity-saving lamp comprises lamp socket 1, be connected the lampshade 2 on the lamp socket 1, in lampshade 2, be provided with 108 light emitting diodes 3 that are connected on the lamp socket 1, the middle part of lamp socket 1 is provided with groove, be provided with power supply changeover device 4 in the groove, power supply changeover device 4 is electrically connected with light emitting diode 3, and light emitting diode 3 is connected with AC power by power supply changeover device 4.Power supply changeover device 4 comprises three-terminal voltage regulator IC, and three-terminal voltage regulator IC adopts the LM317 chip.

Particularly, power supply changeover device 4 comprises transformer T, the voltage input end of transformer T is behind fuse F, 180-260V is communicated with civil power, alternating voltage about the about 14V of voltage output end output of transformer T, the output of transformer T is electrically connected with the input of rectifier bridge Q, and the pulsating dc voltage about the about 19V of output output of rectifier bridge Q obtains DC voltage comparatively stably again after filter capacitor C1 filtering; The positive pole of DC voltage is electrically connected with the voltage input end of three-terminal voltage regulator IC, the controlled end of three-terminal voltage regulator IC is connected with the negative electricity of dc source behind variable resistor R2, and the controlled end of three-terminal voltage regulator IC also is electrically connected with the output of three-terminal voltage regulator IC by divider resistance R1; The voltage of exporting behind the dc source process three-terminal voltage regulator IC is more stable, the output of three-terminal voltage regulator IC is electrically connected with the positive pole of light emitting diode, dc power cathode is connected with the negative electricity of light emitting diode, what light-emitting component adopted in the present embodiment is a led array, by adjusting the resistance value of variable resistor R2, the output voltage values of three-terminal voltage regulator IC be can change, thereby the brightness of light emitting diode 3, perhaps quantity changed; As improvement, in order to obtain output voltage values more stably, between the output of three-terminal voltage regulator IC and dc power cathode and be connected to filter capacitor C2, as shown in Figure 3.

In the above-mentioned embodiment, the specification of fuse F is (1/8) W, 0.2 Ω, the specification of transformer T is BW220/14V, rectifier bridge Q specification be 1A100V, the specification of filter capacitor C1 is a 35V/1000 μ F electrochemical capacitor, three-terminal voltage regulator IC adopts the LM317 chip, the specification of variable resistor R2 is 5K Ω, the specification of divider resistance R1 is (1/8) W, 250 Ω, the specification of filter capacitor C2 is a 16V/220 μ F electrochemical capacitor, and the specification of led array is Φ 5,3.2V, 20mA, R534W202CA luminous tube square formation.In the foregoing description, what light emitting diode 3 adopted is led array, also can adopt a plurality of light emitting diodes, satisfying the requirement of different illumination, or is designed to the lighting of multiple style.

Claims

1, a kind of electricity-saving lamp, comprise lamp socket (1), be connected the lampshade (2) on the lamp socket (1), it is characterized in that: in lampshade (2), be provided with a plurality of light emitting diodes (3) that are installed on the lamp socket (1), also be provided with power supply changeover device (4) on the lamp socket (1), power supply changeover device (4) is electrically connected with light emitting diode (3).

2, electricity-saving lamp as claimed in claim 1 is characterized in that: power supply changeover device (4) comprises three-terminal voltage regulator (IC), and three-terminal voltage regulator (IC) adopts the LM317 chip.