CN201170520Y - Energy-efficient lamps - Google Patents

Abstract

The utility model discloses a high-efficiency energy-saving lamp, which comprises an LED lamp group composed of LED monomers in series and fixed on a lamp holder body, the LED lamp group is connected with a lamp circuit, and the lamp circuit includes a bridge rectifier circuit , the bridge rectifier circuit is connected to the input terminal of the AC power supply, and a power switch, a current limiting capacitor and a safety resistor are connected in series between the bridge rectifier circuit and the input terminal of the AC power supply, and the positive electrode of the LED lamp group is connected in series with the constant current resistor. It is connected with the positive and negative poles of the bridge rectifier circuit, and the positive and negative poles of the bridge rectifier circuit are correspondingly connected in parallel with a discharge resistor and a lightning elimination capacitor. The application of this circuit not only enables the LED lights to maintain the characteristics of good light quality, safety, reliability and environmental protection, but also increases the luminous efficiency of the LED light group to more than 90%, saves power to more than 80%, and the minimum normal service life can be Keep at more than 80,000 hours, and at the same time, after the AC power input terminal is disconnected, the lighting service time of the LED lamp group can also be extended.

Description

Energy-efficient lamps

technical field

The utility model relates to a lamp, especially a walking and high-efficiency energy-saving lamp.

Background technique

As we all know, compared with existing incandescent lamps and other energy-saving lamps, LED lamps have the characteristics of high luminous intensity, good light quality, long service life, low energy consumption, safety, reliability and environmental protection, so LED lamps are used in factories, streets, schools, hospitals, It is gradually being popularized and applied in lighting and decoration of homes and offices, but it still has some shortcomings in use. For example, the luminous efficiency of LED lights is generally about 80%, the highest is not more than 90%, and the power saving is within 80%. Therefore, the luminous efficiency of the existing LED lamp is not high enough, and the power saving is not ideal enough.

Utility model content

Aiming at the deficiencies of LED lamps in the prior art, the utility model provides a high-efficiency energy-saving lamp with higher luminous efficiency and more power saving.

The technical solution adopted for the technical problem to be solved by the utility model is: the high-efficiency energy-saving lamp includes an LED lamp group composed of LED monomers in series and fixed on the lamp holder body, the LED lamp group is connected with the lamp circuit, The lamp circuit includes a bridge rectifier circuit, the bridge rectifier circuit is connected to the input terminal of the AC power supply, and a power switch, a current limiting capacitor and a safety resistor are connected in series between the bridge rectifier circuit and the input terminal of the AC power supply. The positive electrode of the LED lamp group is connected in series with the constant current resistor and connected to the positive and negative electrodes of the bridge rectifier circuit, and the positive and negative electrodes of the bridge rectifier circuit are connected in parallel with a discharge resistor and a lightning elimination capacitor.

Because the utility model is equipped with a constant current resistor, a discharge resistor and a flash capacitor in the LED lamp circuit, the electric energy can be fully applied in the LED lamp group, and the LED lamp can not only maintain good light quality, but also be safe, reliable and environmentally friendly. Features, and the luminous efficiency of the LED lamp group can be increased to more than 90%, the power saving can reach more than 80%, and the minimum normal service life can be maintained at more than 80,000 hours. At the same time, the LED lamp can be extended after the AC power input terminal is disconnected. The lighting usage time for the group.

Description of drawings

Fig. 1 is a schematic diagram of the circuit for the LED lamp group lamp of the present invention.

Detailed ways

Referring to accompanying drawing 1, the high-efficiency energy-saving lamp described in this embodiment is an LED lamp group composed of 10 single LEDs, the LED lamp group is fixed on the lamp holder body, and the power of each LED monomer is 1W. The working voltage is 3V, the working current is 300mA, the LED lamp group is connected with the lamp circuit, and the lamp circuit includes a bridge rectifier circuit composed of four diodes (D1, D2, D3 and D4), and the bridge The bridge rectifier circuit is connected to the two-phase AC power input terminals A and B. Between the bridge rectifier circuit and the AC power input terminal A, there are a power switch K, a current-limiting capacitor C1 and a safety resistor R1 in series. The size of the current capacitor C1 and the safety resistor R1 can be selected according to the total power of the LED lamp group. The positive end of the LED lamp group is connected in series with a constant current resistor R3. It is connected to the positive and negative poles of the bridge rectifier circuit, and the positive and negative poles of the bridge rectifier circuit are also connected in parallel with the discharge resistor R2 and the lightning elimination capacitor C2. The positive and negative poles of the lightning elimination capacitor C2 correspond to the positive and negative poles of the bridge rectifier The specifications of the constant current resistor R3, the discharge resistor R2 and the lightning elimination capacitor C2 can be selected according to the total power of the LED lamp group. The total power of the high-efficiency energy-saving lamp in this embodiment is 10W, and its luminous efficiency is equivalent to that of a 100W incandescent lamp.

Claims (1)

1. High-efficiency energy-saving lamps, which include LED lamp groups composed of LED monomers in series and fixed on the lamp holder body. The LED lamp groups are connected to the lamp circuit. The lamp circuit includes a bridge rectifier circuit. The bridge rectifier circuit is connected to the input end of the AC power supply, and is characterized in that: a power switch, a current limiting capacitor and a safety resistor are connected in series between the bridge rectifier circuit and the input end of the AC power supply, and the positive electrode of the LED lamp group is connected in series with the constant current resistor. It is correspondingly connected with the positive and negative poles of the bridge rectifier circuit, and the positive and negative poles of the bridge rectifier circuit are correspondingly connected in parallel with a discharge resistor and a lightning elimination capacitor.

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