CN201294672Y - Electronic resonance fluorescent lamp ballast - Google Patents

Abstract

The utility model discloses an electronic resonance fluorescent lamp ballast. The purpose is to provide a high magnetic field strength, which can make the inert gas in the fluorescent tube activate the fluorescent powder under the physical resonance of the electron energy, so that the independent gas and fluorescent powder molecular groups can be organically fused to generate light instantly. Its main features: no filament, no air leakage of the lamp tube, and the life of the lamp tube is infinitely long. Under high-intensity energy conversion, several lamp tubes can be lit at the same time, so it can save more than 80-90% of electricity. It can be produced on a large scale and has a wide range of applications. The utility model comprises an electronic circuit and a resonant reactor circuit. The electronic circuit and the resonant reactor circuit are mainly composed of a power filter DC circuit 1 , a power factor correction circuit 2 , a tuned oscillation amplifier circuit 3 , an abnormality protection circuit 4 , and a resonant reactor circuit 5 . The utility model is suitable for lighting in industrial and mining, household, transportation, national defense, medical and other fields, especially in high-altitude places where it is difficult to replace lamp tubes such as outdoor billboards and subways.

Description

Electronic Resonant Fluorescent Lamp Ballasts

technical field

The invention relates to an electronic resonance fluorescent lamp ballast.

Background technique

At present, in domestic and foreign markets, industrial and agricultural production, national defense construction, medical care, transportation and other fields are inseparable from lighting sources. Fluorescent lamps have been the most widely used in lighting applications for decades. Fluorescent lamp tubes currently need to be preheated with a filament to emit light; because the filament needs a certain current to be co-heated to emit electrons and then activate the phosphor to generate energy to emit light through an inert gas. Therefore, a certain power consumption energy is generated, and the service life is also limited (generally 3-5 thousand hours). In today's world, the whole world is advocating energy saving, emission reduction, and green environmental protection. Energy-saving products such as solar lamps, energy-saving lamps, and electrodeless lamps are gradually entering the market. In fact, the fluorescent lamp is a kind of electric light source that is very suitable for various environments. People have changed it from the original diameter of 40.5mm to 32.5mm to the current diameter of 26mm. Even today, energy-saving fluorescent lamps with a diameter of 16mm are still being developed and used. But all these still need tungsten wire to start the heating element.

The electronic resonance fluorescent lamp ballast is a kind of high-voltage pulse generated by a high-frequency oscillating circuit to trigger the inert gas in the fluorescent tube to activate the fluorescent powder, so that the fluorescent lamp can be ignited again. Since the ignited fluorescent lamp does not use tungsten filament, its life is not limited. As long as the fluorescent powder does not deteriorate and the glass does not break and leak, its life is difficult to calculate (it is estimated that it can be used for at least 100,000 hours). For example: design a 20w electronic resonant fluorescent lamp ballast (under the same luminous flux), it can light two 20w fluorescent tubes at the same time, and the actual power consumption of two traditional 20w fluorescent lamps is about 70w. In comparison, electronic The resonant fluorescent lamp ballast saves more than 60% of the electricity resources compared with the traditional ones, and can save more than 90% of the electricity resources when compared with the traditional incandescent bulbs.

Utility model content

The technology to be solved by the present invention is to overcome the deficiencies in the prior art, provide a high magnetic field strength, improve the service life of the lamp tube, save electric resources and be environmentally friendly. An electronic resonant fluorescent lamp ballast that can be mass-produced and has a wide range of applications.

The technical solution adopted in the invention is: the invention includes an electronic circuit and a resonant energy reactor circuit. The resonant energy reactor circuit also includes two or more non-magnetic conductive metal tubules as shown in Fig. 3 and Fig. 4 . The electronic circuit is mainly composed of a power filter DC circuit, a power factor correction circuit, a tuning oscillation amplification output circuit, an abnormal protection circuit and a resonance energy reactor circuit. The power filter DC circuit is composed of a filter circuit composed of inductors (L1, L2) and capacitors (C1, C2), and a rectifier circuit composed of diodes (D1-D4); the power factor correction circuit is composed of (IC1) and its peripheral resistors , capacitor, MOSFET tube (Q1), step-up transformer (T1) and the PFC step-up converter that step-up diode (D7) forms; Described tuned oscillation amplifies the output circuit by filter capacitor (C10), self-excited transformer ( T2) and MOSFET power amplifier tubes (Q2, Q3), capacitors (C13, C14), voltage regulator tubes (D13-D16), etc. The high-frequency self-excited oscillation circuit is triggered by the resistors (R12-R14) and capacitors (C12). (D9-D12) and the high-voltage high-frequency circuit composed of the choke coil (N31) on the inductance magnet (T3) and the high-voltage high-frequency circuit; ), the rectifier diode (D18), the resistors (R15, R16), the capacitor (C16), and the regulator tube (D17) are connected in turn, and the silicon controlled rectifier (Q4) is connected to the MOSFET tube (Q3) in the high-frequency self-excited oscillation circuit. Between the pole and the source, the anode of the regulator tube (D17) is connected to the control pole of the thyristor (Q4).

The working principle of the electronic circuit provided by the present invention is as follows: the function of the power factor correction circuit is to generate a current in the same phase as the AC input voltage at the AC input terminal, so that the harmonics of the input current meet the limit specified in the GB/T15144 standard, and the line power The factor is higher than 0.99. At the same time, when the AC input voltage fluctuates in a large range, it can provide a raised and stable DC voltage to the high-frequency oscillation circuit. The DC voltage is filtered by the capacitor (C10) and then supplied to the high-frequency self-excited oscillation circuit. When the voltage reaches When the breakdown voltage of the trigger tube (D9-D12) is reached, the start-up trigger circuit composed of the resistor (R12-R14) capacitor (C12) and the trigger tube (D9-D12) is triggered to make the self-excited oscillation in the high-frequency self-excited oscillation circuit, In the circuit, the primary coil (N21) of the self-excited transformer (T2) is energized, and the secondary coils (N22, N23) generate induction signals, and make the MOSFET power amplifier tubes (Q2, Q3) conduct alternately, forming a high-frequency oscillation of 2.65MHz The signal is transmitted to the resonant reactor circuit through the high-voltage and high-frequency circuit composed of the choke coil (N31) on the inductance magnet (T3) and the capacitor (C17, C18), and then generates a high-voltage pulse current to excite the inert gas in the fluorescent lamp tube. Activate the phosphor to emit light. At this point, the start trigger circuit stops working. When abnormal conditions such as broken lamp tube, air leakage, and load short circuit occur, the automatic protection circuit set on the power circuit starts to work, and the voltage at both ends of the sampling winding (N32) wound on the inductance magnet (T3) of the high-voltage and high-frequency circuit rises. High, rectified by the rectifier diode (D18), delayed by the resistors (R15, R16) and capacitor (C16), when the voltage rises to the point where the Zener tube (D17) breaks down, the control of the thyristor (Q4) connected to its positive pole The pole is triggered, so that the MOSFET power amplifier tubes (Q2, Q3) in the high-frequency self-excited oscillation circuit stop working, the oscillation circuit stops oscillating, and the circuit is in a low-power protection state until the fault is eliminated.

In the (N42) coil lead-out end of (T4) in the resonant energy reactor circuit (5), two or more non-magnetic metal tubules are set at the A end and the B end, and are encased in the glass tube wall at both ends of the fluorescent tube. Figure 2, Figure 3, and Figure 4 above.

The beneficial effects of the present invention are: due to the adoption of the resonant energy reactor circuit and the tuned oscillation amplifying output circuit, the inert gas in the fluorescent tube can activate the fluorescent powder under the physical resonance of the electron energy, so that the mutually independent gas and Phosphor powder molecular clusters are organically fused, and (without tungsten electric heating) instantly produce light.

For example: a discarded fluorescent tube with black hair or broken tungsten wire at both ends, put it on the non-magnetic metal small tube snare on the energy reactor as shown in Figure 3, the fluorescent tube will light up instantly without any starter help.

Due to the adoption of the resonant energy reactor circuit and the tuned oscillation amplifier output circuit, a high-intensity magnetic field can be generated. The production of high-power electronic resonance fluorescent lamp ballasts can be mass-produced, which can greatly save electricity resources for the society, and can also save the cost of fluorescent tubes and greatly extend the service life of fluorescent tubes. The macro program of environmental protection. The invention has the advantages of simple structure, convenient use and remarkable economic benefits.

Description of drawings

Fig. 1, is the electronic circuit schematic diagram of the present invention;

Fig. 2, is the structural representation of the resonant energy reactor circuit inductance (T4) of the present invention;

Fig. 3, Fig. 4, are the schematic diagrams of the external structure of the resonant energy reactor circuit of the present invention;

Detailed ways

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the present invention includes an electronic circuit (1-4) and a resonant energy reactor circuit (5). The resonant energy reactor circuit includes the same two or more non-magnetic metal tube snares as shown in Fig. 3 and Fig. 4, and the electronic circuit is mainly composed of a power supply filter DC circuit (1), a power factor correction circuit (2 ), a tuned oscillation amplifying output circuit (3), an abnormality protection circuit (4) and a resonance energy reactor circuit (5); As shown in Figure 2 above, the rectangular high-magnetic body is the load of the tuned oscillation amplifying output circuit.

The electronic circuit shown in Figure 1 is a power filter DC circuit (1), a power filter network composed of inductors (L1, L2) and capacitors (C1, C2), whose function is to suppress electromagnetic interference from the power grid. At the same time, it also inhibits the electromagnetic interference generated by the switching power supply itself, so as to ensure that the power grid is not polluted. The diodes (D1-D4) rectify the AC to obtain DC power for subsequent circuit work. In addition, in order to effectively suppress the surge current when starting up, a power type (NTC) thermistor is connected in series in the power supply circuit.

The power factor correction circuit (2) of the electronic circuit shown in Figure 1, the traditional non-controlled rectification switching power supply, because the input impedance is capacitive, there is a large phase difference between the input voltage and the input current, and the input current is seriously non-sinusoidal and presents a Pulse shape, so the power factor is extremely low, and the harmonic component is very high, which brings serious harmonic pollution to the power system, causes the reactive power of the electrical equipment to increase, and wastes power resources. In order to solve this problem, a power factor correction circuit (2) is added to the ballast, which is composed of a power factor compensation control integrated circuit (IC1) and its peripheral components, so that the power factor can reach above 0.99. At the same time, the power factor correction circuit (2) is a step-up switching power supply, so that the luminous flux of the lamp will not change with the fluctuation of the mains voltage during normal operation.

The electronic circuit shown in Fig. 1 tunes and oscillates the amplifying output circuit (3). After the power is turned on, the power factor correction circuit outputs a DC voltage. Tubes (D9-D12) form the drive circuit. Driven by the driving circuit, a high-voltage and high-frequency working voltage is generated to light the fluorescent lamp. It includes a transformer (T2), MOSFET tubes (Q2, Q3) and its peripheral circuits. In order to make the resonant frequency of the fluorescent lamp circuit network the same as that of the input circuit, an adjustable inductance (L3) is connected in parallel between the gate electrode and the source electrode of the MOSFET tube (Q3).

In the abnormal protection circuit (4) of the electronic circuit shown in Figure 1, when abnormal conditions such as the small tube ring sheathed in the fluorescent tube falls off or the fluorescent tube leaks, the ballast cannot be started normally, and the resonant ignition circuit is always in a resonant state, and the tuning oscillation is amplified The current of the output circuit increases to 3-5 times of the normal current. If effective protection measures are not taken, the tuned oscillation amplifier output circuit and the pre-unit circuit will burn out due to overload, and even cause smoke, burst and other accidents. One end of the sampling winding (N32) on the inductor (T3) of the abnormality protection circuit (4) is connected to the positive pole of the rectifier tube (D18), and the other end is connected to the negative pole of the DC power supply. The negative pole of the rectifier tube (D18) is connected to the resistor (R15) in series and then connected to the negative pole of the voltage regulator tube (D17), and the positive pole of the voltage regulator tube (D17) is connected to the control pole of the thyristor (Q4). One end of the resistor (R16) is connected to the junction of the negative pole of the rectifier tube (D18) and the resistor (R15), and the other end is connected to the negative pole of the DC power supply. The positive pole of the capacitor (C16) is connected to the junction of the negative pole of the voltage regulator tube (D17) and the resistor (R15), and the other end is connected to the negative pole of the DC power supply.

Described electronic circuit Fig. 1 resonant energy reactor circuit (5), inductance (T4) (N41) two ends, one end connects one end of capacitor (C17), the other end connects the negative pole of DC power supply, the other end of capacitor (C17) connects The junction of (N31) of inductor (T3) and capacitor (C19). The movable piece of the adjustable capacitor (C18) is connected to the junction of the (N31) of the inductance (T3) and the capacitors (C17, C19), and the fixed piece of the other end is connected to the negative pole of the DC power supply. The (N42) A and B ends of the inductance (T4) are respectively connected with two or more non-magnetic metal small tube rings respectively set on the two glass tube walls of the fluorescent tube as shown in Fig. 3 and Fig. 4 . In the start-up phase, the equivalent resistance of the fluorescent lamp is very large, and the series resonance occurs between the (N41) of the inductor (T4) and the capacitors (C17, C18), and the resonant circuit is tuned to the (N41, C18) of the inductor (T4) via the adjustable capacitor (C18). N42) produces a resonance effect, and (N42) A and B ends form a very high (about 3000V) ignition voltage, and the inert gas in the fluorescent tube is instantly pressed to activate the phosphor to light the fluorescent lamp.

Claims (3)

1. Ballast of electronic resonance fluorescent lamp it comprise electronic circuit and resonance energy source reactor circuit; Described electronic circuit mainly is made up of power filter DC circuit (1), circuit of power factor correction (2), tuning vibration amplification output circuit (3), abnormity protection circuit (4) and resonance energy source reactor circuit (5); It is characterized in that: described resonance energy source reactor circuit is that non-magnetic conductive metal is wound on the high magnetic of rectangle at a certain distance, and the high magnetic of described rectangle is the load of described tuning vibration amplification output circuit (3).
2. 2. ballast of electronic resonance fluorescent lamp according to claim 1 is characterized in that: it is made up of power filter DC circuit, circuit of power factor correction, tuning vibration amplification output circuit, abnormity protection circuit and resonance energy source reactor circuit; The filter circuit that described power filter DC circuit is made up of inductance (L1, L2) and electric capacity (C1, C2), the rectification circuit that diode (D1-D4) is formed constitute; The PFC booster converter that described circuit of power factor correction is made up of (IC1) and peripheral resistance thereof, electric capacity, MOSFET pipe (Q1), step-up transformer (T1) and booster diode (D7) constitutes; The high-frequency self-excitation oscillating circuit that described tuning vibration amplification output circuit is made up of filter capacitor (C10), self-excitation transformer (T2) and MOSFET power tube (Q2, Q3) and electric capacity (C13, C14), voltage-stabiliser tube (D13-D16) etc., start triggering circuit of forming by resistance (R12-R14) electric capacity (C12) trigger tube (D9-D12) and the high voltagehigh frequency circuit formation of forming by the choke (N31) on the inductance magnet (T3); Upward sampling winding (N32), rectifier diode (D18) resistance (R15, R16) electric capacity (C16) voltage-stabiliser tube (D17) join described abnormity protection circuit successively by inductance magnet (T3); the MOSFET that controllable silicon (Q4) is connected in the high-frequency self-excitation oscillating circuit manages deleting between the utmost point and the source electrode of (Q3), and the positive pole of voltage-stabiliser tube (D17) connects the control utmost point of controllable silicon (Q4).
3. 3. according to claim 1 or 2 described ballast of electronic resonance fluorescent lamp, it is characterized in that: described resonance energy source reactor circuit (5) produces high voltagehigh frequency at tuning vibration amplification output circuit (3) via the choke (N31) on the inductance magnet (T3), electric capacity (C17, C18) and goes up the composition resonance energy at the high magnetic of rectangle (T4), the A end B of the high magnetic of described rectangle, inductance (T4) holds the non-magnetic conductive metal tubule snare that connects again more than two or two on the glass tube walls of fluorescent tube two ends, and C is the C end that shielded lead connects electronic circuit electric capacity (C15).

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