CN2155124Y

CN2155124Y - Multifunction fluorescent lamp ballast

Info

Publication number: CN2155124Y
Application number: CN 93236622
Authority: CN
Inventors: 蒋守国
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-04-08
Filing date: 1993-04-08
Publication date: 1994-02-02
Anticipated expiration: 2003-04-08

Abstract

The utility model relates to a multifunction fluorescent lamp ballast used for the start-up and light of a fluorescent lamp, composed of an inductance and capacitors. A ballast coil L1 connected with a low voltage lighting coil L2 in series is connected with one end of a lamp tube, a filament heating coil n is connected with the filament of one end of the lamp tube, both heads of the filament are connected with one end of capacitors C1 and C2. The utility model has the advantages of high reliability, low proper loss, etc., not only can directly start in a low voltage, but also can regulate light, as well as can be used for a single tube to work, and can also be used for multi-tubes to work.

Description

Multifunction fluorescent lamp ballast

The utility model is a kind of multi-functional fluorescent lamp ballasting device that is used for various fluorescent lamp startings and lights, and belongs to the electric lighting technical field.

Existing fluorescent lamp ballast has inductance type ballast and electric ballast two classes.Inductance type ballast is simple in structure, but needs usually just can make the fluorescent lamp operate as normal with the starter cooperation, often is difficult to start when voltage is low, particularly winter, makes troubles to the user.Electric ballast has low voltage starting and does not need the characteristics of starter, but generally electric ballast all has high order harmonic component and causes electronic pollution, influences the electrical network waveform, and the cost height, and reliability is relatively poor, thereby is difficult to generally promote.

The purpose of this utility model is at the deficiencies in the prior art, provides a kind of starter that do not need to start the multi-functional fluorescent lamp ballasting device of lighting with regard to the direct low pressure of energy, and reliable operation, no electronic pollution, and cost is low.

The utility model is made up of inductance and electric capacity, and its characteristics are inductance B ₁By ballast coil L ₁, low pressure lights coil L ₂Constitute L with filament heater coil n ₁And L ₂The series connection back is connected with an end of fluorescent tube, and n is connected capacitor C with the filament of fluorescent tube one end ₁And C ₂An end and L ₁And L ₂Link link to each other C ₁And C ₂The other end be connected with filament two of the fluorescent tube other end respectively.When the power turn-on switch, fluorescent tube is unlit moment still, and device work is in the humorous formula transformer state of string, coil L ₁And L ₂Produce high voltage for self coupling boosts, coil n produces the filament heating current of fluorescent tube, and two kinds of effects are lighted fluorescent tube very soon, approach one open promptly bright; After fluorescent tube is lighted, device automatically is transformed into limited current state (promptly also humorous choked flow hold concurrently current transformer) immediately, and the filament that continues as fluorescent tube provides heating current, and overcurrent does not diminish, its phase place is also inconsistent with lamp current, and the opposite end voltage over zero repeats to light effect very much.Capacitor C ₁, C ₂For adjusting the usefulness of electric current proportioning.In order to make device have dimming function, coil L ₂Adopt tapped coil, and be connected with each tap, so that realize the requirement of different brightness by the light modulation selector switch; Enlarge dimming scope if desired, can set up a tapped coil L ₃, L ₃An end and L ₂Series connection, the other end is connected with the light modulation selector switch.In order to make device can be used to light many fluorescent tubes, the filament heater coil can have a plurality of coils to constitute, for example n ₁, n ₂, n ₃, n ₄, promptly 1～4.

The utility model compared with prior art, have advantages such as reliability height, cost is low and power factor (PF) is high, own loss is low, do not need starter just can directly start, and can under the lower situation of voltage, light, both can be used for single tube work, also can be used for multitube work, also can realize light modulation, old fluorescent tube helps prolonging lamp tube service life, even also can utilize.

Fig. 1 is the structural representation that is used for single tube work; Fig. 2 is used for the structural representation that four plumbers do.

The utility model can take scheme shown in the drawings to realize.The ballast device that is used for single tube as shown in Figure 1, U ₀Be 220 volts of AC power, K ₁Be mains switch, fluorescent tube D is the 40W fluorescent lamp, coil L ₁And L ₂Series inductance increases by 10～20% than common ballast, C ₁And C ₂Total capacity be 3～4 microfarads, coil n can get L ₁5～10%.The ballast device that is used for multitube can adopt scheme shown in Figure 2, D ₁, D ₂, D ₃, D ₄Can be four 20W fluorescent lamps, L ₁And L ₂Series inductance increases by 40～60% than common ballast, B ₂Be the light modulation inductance, its coil inductance L ₃Can design K according to the scope of light modulation ₂Be the light modulation selector switch, can adopt wave band formula switch, C ₁And C ₂Total capacity can be 5～6 microfarads, n ₁, n ₂, n ₃And n ₄Inductance value can get L ₁5～10%, U ₀Be 220 volts of AC power, K ₁Be mains switch.

Claims

1, a kind of multi-functional fluorescent lamp ballasting device that is used for fluorescent lamp starting and lights is made up of inductance and electric capacity, it is characterized in that inductance B ₁By ballast coil L ₁, low pressure lights coil L ₂Constitute L with filament heater coil n ₁And L ₂The series connection back is connected with an end of fluorescent tube, and n is connected capacitor C with the filament of fluorescent tube one end ₁And C ₂An end and L ₁And L ₂Link link to each other C ₁And C ₂The other end be connected with filament two of the fluorescent tube other end respectively.

2, multi-functional fluorescent lamp ballasting device according to claim 1 is characterized in that coil L ₂Adopt tapped coil, each tap is connected with the light modulation selector switch.

3, according to claim 1 and 2 described multi-functional fluorescent lamp ballasting devices, it is characterized in that being provided with tapped coil L ₃, wherein an end and L ₂Series connection, the other end is connected with the light modulation selector switch.

4, multi-functional fluorescent lamp ballasting device according to claim 1 and 2 is characterized in that the filament heater coil has 1～4.