CN2156649Y - High-effect energy-saving device combined with inductance ballast fluorescent lamp - Google Patents

Abstract

The utility model relates to a high-effect energy-saving device combined with an inductance ballast fluorescent lamp, provided with a lamp tube glow starting circuit and a lamp tube normal work circuit. The utility model can use a direct current voltage higher than input alternating voltage peak to cause a lamp tube to start glow and light. The utility model without a stroboflash and noises is provided with current advanced power factors, decreases the self loss of the ballast, is capable of starting glow under the conditions of a lower voltage or a low temperature, is also capable of prolonging the service life of the lamp tube and has an obvious effect of saving power.

Description

High-effect energy-saving device combined with inductance ballast fluorescent lamp

The utility model relates to a kind of high-efficiency electricity-saving appliance that combines with the inductance type ballast fluorescent lamp.

As ballast, its power factor is very low, has increased the reactive capability and the loss of electrical network, also has stroboscopic and noise with iron inductance for fluorescent lamp (fluorescent lamp) overwhelming majority of generally using at present, and needs special-purpose starter.This starter is easier to damage, below 190 volts during with low temperature environment starter very difficult, bring many troubles to the user.Though the electric ballast of now putting on market can play economize on electricity, low energy consumption, do not need special advantages such as starter, failure rate is higher, can not eliminate even also aggravate the early stage blackout phenomenon of fluorescent tube, thereby shorten lamp tube service life.

The purpose of this utility model is the deficiency at the above-mentioned background technology, be used with the conventional fluorescent lamps ballast and provide a kind of, and has a leading power factor of electric current, lower from loss, no stroboscopic and noise, can be at voltage start the high-efficiency electricity-saving appliance in prolonging lamp tube useful life under the lower or low temperature condition.

The technical solution that realizes above-mentioned purpose is: this high-efficiency electricity-saving appliance, comprise a fluorescent tube operate as normal circuit and starting circuit, and wherein said fluorescent tube operate as normal circuit is by capacitor C ₅With by diode D ₁, D ₂, D ₃, D ₄The rectification circuit that constitutes is formed, capacitor C ₅Be serially connected with the AC side of rectification circuit, the DC side of rectification circuit is connected to filter capacitor C ₆Described starting circuit is a symmetric double voltage doubling rectifing circuit.Lamp tube ends is connected with fluorescent tube operate as normal circuit output end with double voltage rectifier output with relay by Inductive ballast respectively, and by diode D ₉, D ₁₀, D ₁₁, D ₁₂Isolate.The normally-closed contact of relay is connected to the AC side of starting circuit, and normally opened contact is connected to the AC side of fluorescent tube operate as normal circuit.

Fig. 1: circuit theory diagrams of the present utility model.

Fig. 2: shape assumption diagram of the present utility model.

Now in conjunction with the accompanying drawings embodiment of the present utility model is done an explanation.

As shown in Figure 1, be contained in shell 4(referring to Fig. 2) in wiring board on comprise a fluorescent tube operate as normal circuit and starting circuit.Fluorescent tube operate as normal circuit is by capacitor C ₅With by diode D ₁, D ₂, D ₃, D ₄The rectification circuit that constitutes is formed, capacitor C ₅Be serially connected in the AC side of this rectification circuit, be used for the Alternating Current Power Supply step-down is made D _1-4Rectification circuit output end obtains fluorescent tube 1 required normal working voltage and electric current.The starting circuit of fluorescent tube 1 is by capacitor C ₁, C ₂, C ₃, C ₄With diode D ₅, D ₆, D ₇, D ₈A kind of symmetric double voltage doubling rectifing circuit of forming can produce the direct voltage that is four times in the input ac voltage peak value, and fluorescent tube 1 starter is lighted.Capacitor C ₆Be the bigger filter capacitor of a numerical value, it is connected to diode D _1-4The DC side of rectification circuit can be converted into level and smooth direct voltage with the pulsating dc voltage of this rectification circuit output.L is the Inductive ballast 2 of former fluorescent lamp adapted, here as choke.The inductance value of L is enough big, can control the low-frequency ac component by fluorescent tube 1 electric current effectively, keeps the waveform of load current steady, and DC component is not had the effect of controlling.Diode D ₉, D ₁₀, D ₁₁, D ₁₂Be isolating diode, when the tube starting circuit working, D ₁₀, D ₁₁Bear forward voltage and conducting, fluorescent tube 1 two ends excite conducting because of getting starting voltage; While D ₉, D ₁₂End because of bearing reverse voltage, do not make starting voltage to capacitor C ₆Charging.When changing operate as normal circuit connection alternating current over to, D ₉, D ₁₂Be subjected to forward voltage and conducting, D ₁₀, D ₁₁End because of bearing reverse voltage, isolated of the influence of tube starting circuit at 2 fluorescent tube 1 normal working voltage from A, B.

The circuit working process of this high-efficiency electricity-saving appliance is: when 220 volts of AC power access failures, relay 3 is not charged, and normally-closed contact is connected, and normally opened contact disconnects, and entire circuit is not worked.When power connection in a flash in, still connect the fluorescent tube starting circuit owing to inertia makes the normally-closed contact of relay 3, this circuit working is lighted fluorescent tube 1 starter.After the relay 3 charged work, its normally-closed contact then disconnects, and connects normally opened contact, changes the operating state that fluorescent tube operate as normal circuit is given fluorescent tube 1 power supply into.Connect normally opened contact, change the operating state that fluorescent tube operate as normal circuit is given fluorescent tube 1 power supply into.If when extinguishing because of certain reason fluorescent tube 1, relay 3 repeats above-mentioned starter ignition procedures because of dead electricity is automatically converted to the starting circuit work of fluorescent tube 1.

Because iron inductance ballast 2 becomes the pulsating direct current state from exchange status in this circuit, its iron loss and copper loss are all very little.Also because of after being provided with direct current to fluorescent tube, eliminated fluorescent tube when Alternating Current Power Supply so the stroboscopic of the voltage zero cross near that has and phase twice repetition starter have weekly improved luminous efficiency, have higher power saving rate.If, can make filament body temperature and potential balance when fluorescent tube 1 work with the filament leading foot of lamp tube ends short circuit (not short circuit also can) respectively; Reduced the electric current impulse to filament owing to starting current is less, added that lamp works voltage is level and smooth, measures such as the flat ripple of electric current can help useful life of prolonging lamp tube.And still can light by starter for the waste fluorescent lamp that has only an end to have the emitting electrons ability.

The utility model has the advantage of: circuit design is reasonable, has the leading power factor of electric current, reduced Inductive ballast from loss, no stroboscopic and noise, and can be at voltage start smoothly under the lower or low temperature condition, but also the service life of prolonging lamp tube, be suitable for existing fluorescent lamp with Inductive ballast and support the use, can play obvious power savings.

Claims (2)

1, a kind of high-efficiency electricity-saving appliance that combines with the Inductive ballast fluorescent lamp has a shell (4) and Inductive ballast (2), it is characterized in that it comprises a fluorescent tube operate as normal circuit and starting circuit, wherein:

1.1 described fluorescent tube operate as normal circuit is by capacitor C ₅With by diode D ₁, D ₂, D ₃, D ₄, the rectification circuit that constitutes forms capacitor C ₅Be serially connected with the AC side of rectification circuit, the DC side of rectification circuit is connected to filter capacitor C ₆,

1.2 described starting circuit is a symmetric double voltage doubling rectifing circuit,

1.3 fluorescent tube (1) two ends are connected with fluorescent tube operate as normal circuit output end with double voltage rectifier output with relay (3) by Inductive ballast (2) respectively, and by diode D ₉, D ₁₀, D ₁₁, D ₁₂Isolate.

2, high-efficiency electricity-saving appliance according to claim 1 is characterized in that the normally-closed contact of relay (3) is connected to the AC side of starting circuit, and normally opened contact is connected to the AC side of fluorescent tube operate as normal circuit.

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