CN2141636Y

CN2141636Y - Long-life energy-saving fluorescent lamp controller

Info

Publication number: CN2141636Y
Application number: CN 92220987
Authority: CN
Inventors: 陈建国
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-21
Filing date: 1992-09-21
Publication date: 1993-09-01
Anticipated expiration: 2002-09-21

Abstract

The utility model relates to a long-life energy-saving fluorescent lamp controller, which is composed of a lamp tube, an inductor L1, an inductor L2, a capacitor C1, a shell, and a controlled silicon control circuit. The heating time of the filament current of the fluorescent lamp is reduced because of the controlled silicon control circuit which is adopted. The starting time is short, and the starting times of the lamp tube can be made to more than 40000 times by making use of a pulse voltage starting lamp. The utility model has the advantages of long service life, and high reliability. The utility model also improves the power factors, and the utility model is suitable for various occasions which the illumination of fluorescent lamps is needed.

Description

Long-life energy-saving fluorescent lamp controller

The utility model relates to a kind of controller, particularly a kind of long-life energy-saving fluorescent lamp controller.

Disclose a kind of long-life energy-saving fluorescent lamp controller in the Chinese patent (patent No. 92204828.2), though it has improved power factor (PF), and saved starter, the number of starts of fluorescent tube is about 10,000 times, and starting time is longer.

The number of starts that provides a kind of prolonging lamp tube but the purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part, and start long-life energy-saving fluorescent lamp controller rapidly.

The purpose of this utility model can reach by following measure: the utility model comprises fluorescent tube, upper casing, lower casing, be loaded on two binding posts on the lower casing and inductance L 1, L2, capacitor C 1, it is characterized in that: also increased a SCR control circuit, the output of SCR control circuit is joined with inductance L 2 and capacitor C 1.

The purpose of this utility model can also reach by following measure: the SCR control circuit comprises resistance R 1～R4, capacitor C 2, diode D1, controllable silicon SCR, filament A and inductance L 2 are joined, and connecing the control grid G of controllable silicon SCR by D1, R1, R3, the anode F of SCR connects capacitor C 1 and inductance L 2 by R4.Inductance L 1, L2, capacitor C 1, controllable silicon SCR are integrated.The iron core length of L1, L2 is 7 centimetres, and the winding of L1 is 660 circles, and the winding of L2 is 600 circles.

Fig. 1 is an electrical schematic diagram of the present utility model;

Fig. 2 is a contour structures schematic diagram of the present utility model;

Fig. 3 is the phasor analysis figure of electric current of the present utility model and voltage.

The utility model is described in further detail below in conjunction with accompanying drawing (embodiment):

With reference to Fig. 1, Fig. 2, the utility model is made up of inductance L 1, L2, capacitor C 1, C2, resistance R 1～R4, diode D1, controllable silicon SCR, fluorescent tube 1, upper casing 2, lower casing 3, binding post 4,5 etc.Binding post 4,5 is loaded on the lower casing 3, and electronic circuit board is loaded in the housing that is formed by upper casing 2, lower casing 3.Inductance L 1 is a fluorescent tube step-down usefulness, and the filament in L2 and C1 serial connection back and the fluorescent tube 1 joins, and replaces former igniter circuitry, and as power-factor compensator.L1, L2 be integrated (winding of L1, L2 and on an iron core).The SCR control circuit 6 that increases mainly is to reduce the daylight filament current flow heats time, utilizes pulse voltage to start fluorescent tube, makes the fluorescent tube number of starts more than 40,000 times.

During power turn-on (but supply voltage operate as normal in～150V～270V scope).Electric current heated 2～3 seconds continuously by inductance L 1, tube filament A, inductance L 2, controllable silicon SCR, filament B, produced high-voltage pulse by SCR, and starter is luminous.L2, C1 are power-factor compensators behind the starter, and SCR control circuit 6 quits work.

With reference to Fig. 3, the electric current during this controller operate as normal is less, and power factor (PF) is higher.From formula P=IUCOS θ as can be known, when the phase difference of electric current I and voltage U was big more, power factor P was low more, accomplish that power is constant, must increase electric current.And as can be seen from Figure 3, the electric current I=IL+IC of this controller, wherein IL is the electric current that flows through inductance coil, IC is the electric current that flows through electric capacity.IC is than voltage U leading 90 ° among the figure, so overlap with ordinate; And electric current I L lags behind than voltage U, but less than 90 °, reason is that the series connection of fluorescent tube resistance is arranged.The I that IL and IC addition are drawn is less, and is close with the phase place of voltage U.By adjusting the capacity of C, can make the approximate and voltage U homophase (as shown in phantom in FIG.) of electric current I, and phase difference is more little, then I is just more little, and power factor (PF) is just high more.The electric current of the original daylight lamp circuit of current ratio of this controller will reduce about 60%.

The utility model has following advantage compared to existing technology:

1. to start be not to start by filament heating to fluorescent tube, but start by pulse voltage, so start-up time is very short, and the number of starts is more than 40,000 times, thereby prolonged the service life of fluorescent tube.

2. improved power factor (PF), and circuit is simple, practical reliable, applicable to the various occasions that need fluorescent lamp lighting.

Claims

1, a kind of long-life energy-saving fluorescent lamp controller, comprise fluorescent tube 1, upper casing 2, lower casing 3, be loaded on two binding posts 4,5 on the lower casing 3 and inductance L 1, L2, capacitor C 1, it is characterized in that: also increased a SCR control circuit 6, the output of SCR control circuit 6 is joined with inductance L 2 and capacitor C 1.

2, controller according to claim 1, it is characterized in that: SCR control circuit 6 comprises resistance R 1～R4, capacitor C 2, diode D1, controllable silicon SCR, filament A and inductance L 2 are joined, and connecing the control grid G of controllable silicon SCR by D1, R1, R3, the anode F of SCR connects capacitor C 1 and inductance L 2 by R4.

3, controller according to claim 1 is characterized in that: inductance L 1, L2, capacitor C 1, controllable silicon SCR are integrated.

4, controller according to claim 1 is characterized in that: the iron core length of L1, L2 is 7 centimetres, and the winding of L1 is 660 circles, and the winding of L2 is 600 circles.