CN201491353U

CN201491353U - Conjugate ballast for fluorescent lamp

Info

Publication number: CN201491353U
Application number: CN2009200841069U
Authority: CN
Inventors: 李顺华
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-11
Filing date: 2009-03-11
Publication date: 2010-05-26
Anticipated expiration: 2019-03-11

Abstract

The utility model discloses a conjugate ballast for a fluorescent lamp, which comprises an inductive ballast (2) and is characterized in that a fluorescence circuit of the inductive ballast (2) and a ballast circuit of a capacitor (3) of an inductive ballast (1) are connected in parallel to power supplies L and N. The utility model has the advantages that after adopting the structure, on one hand, the power factor of the ballast circuit is above 0.9, so that an inductance-capacitance ballast can be popularized and applied in large areas, especially, the application of a single-ended fluorescent lamp finds a way out of the situation of electronic ballasts; and on the other hand, the lamp current of the inductance-capacitance ballast leads the lamp voltage thereof, and the lamp current of the inductive ballast lags the lamp voltage thereof, so that the phase deviation of 90 degrees is kept on the fluorescent lifetime of the two lamps, equivalently, the fluorescent frequency is doubled, and the illumination intensity is improved; and meanwhile, the strobo problem of a fluorescent lamp tube caused by the power frequency of 50 HZ is solved. As is well known, the inductance-capacitance ballast has a plurality of known advantages, and the technical scheme of the utility model can make best use of the advantages and bypass the disadvantages; and the conjugate ballast for the fluorescent lamp is super energy-saving and is very high in performance price ratio, so that the product is believed to have enormous market prospect.

Description

A kind of conjugation-type ballast for fluorescent lamps

Technical field

The utility model relates to the electric lighting technical field, a kind of specifically conjugation-type ballast for fluorescent lamps, particularly its syndeton.

Background technology

Because inductive-capacitive ballast has many good qualities, the technical staff of affiliated industry is furtheing investigate it always.As " light source and illumination " the 4th phase in 2003 (design of LC ballast), and Chinese patent patent publication No. CN101056491A; Their maximum characteristics are energy-conservation, the leading national energy conservation standard of the efficiency factor of energy-conservation inductive-capacitive ballast.This explanation inductance capacitance town device has very big development prospect.The product of above-mentioned technology has a common characteristic, is exactly that the inductive-capacitive ballast circuit is capacitive.It is favourable (because public electric power system mostly is an inductance current) that this capacity current disperses to use in public electric power system, and large tracts of land is used the place such as concentrated uses such as market, supermarket, office buildings simultaneously, also have when inductive-capacitive ballast is used for the one end fluorescent lamp circuit, these all need the product of High Power Factor.Therefore must improve the power factor of inductance capacitance town device circuit.The power factor that improves inductance capacitance town device circuit is to become the technical issues that need to address.

Summary of the invention

The technical problem of the required solution of the utility model is the situation at prior art, and a kind of conjugation-type ballast for fluorescent lamps is provided.

For achieving the above object, the utility model adopts following technical scheme: this conjugation-type ballast for fluorescent lamps, comprise that Inductive ballast (2) is characterized in that: the ballast circuit of the same Inductive ballast of fluorescence circuit (1) capacitor (3) of described Inductive ballast (2), and be connected on power supply L and the N, wherein, following relation is satisfied in the work pressure drop of Inductive ballast (1) and the pressure drop of discharge lamp :-12%≤(ballast pressure drop-discharge lamp pressure drop)/discharge lamp pressure drop * 100%≤+ 175%, capacitor (3) is pressed I=W/U X for its capacity _C=U/IC=1/ ω X _C* 10-6 calculates, and C multiply by the capacitor of correction factor K, and in the formula: W-is the meritorious power consumption (W) of low consumption inductance ballast circuit, and U-is the input voltage (V) of low consumption Inductive ballast, and I-is the circuit active current (A) of low consumption Inductive ballast, X _C-be the capacitive reactance (Ω) of capacitor, ω-be angular frequency, C-is capacitor volume calculated value (μ F), correction factor K value is 0.5-1.6.

Described conjugation-type ballast for fluorescent lamps is a single-ended structure, and Inductive ballast (1) (2), capacitor (3), starter (4) all are encapsulated in end cover (7) and the base plate (8), are connected with external power source by lamp holder (8).

The Inductive ballast of described conjugation-type ballast for fluorescent lamps (2), (1) are loop configuration.

Advantage of the present utility model is: after adopting said structure on the one hand, the power factor of ballast circuit makes inductive-capacitive ballast obtain large scale application more than 0.9, and particularly the application of one end fluorescent lamp will be broken the general layout of electric ballast.After adopting said structure on the other hand, because the leading modulating voltage of lamp current of inductive-capacitive ballast, the lamp current hysteresis modulating voltage of Inductive ballast, two lamps keep 90 ° phase deviation approximately on fluorescent lifetime, be equivalent to the glow frequency of system is doubled, improve illumination, also remedied the fluorescent tube stroboscopic problem that is caused because of power frequency 50Hz simultaneously.Inductive-capacitive ballast has many good qualities and knows altogether, and the technical solution of the utility model has played the effect of maximizing favourable factors and minimizing unfavourable ones, and the super energy-conservation extra high ratio of performance to price that also has of this conjugation-type ballast for fluorescent lamps believes that this product has huge market prospects.

Description of drawings

Fig. 1 is first kind of conjugate ballast circuit structure schematic diagram of the present utility model.

Fig. 2 is second kind of conjugate ballast circuit structure schematic diagram of the present utility model.

Fig. 3 is the product structure schematic diagram of second kind of conjugate ballast circuit structure schematic diagram of the present utility model.

Among the figure: 1 be inductance capacitance town device inductive part, 2 for inductance town device, 3 for capacitor, 4 for starter, 5 for fluorescent lamp, wherein FL is a double-end fluorescent, UL be one end fluorescent lamp, 6 for base plate, 7 for end cover, 8 be lamp holder.

Embodiment

For further specifying above-mentioned purpose of the present utility model, technical scheme and effect, following examples are described in detail the utility model in conjunction with the accompanying drawings.

Circuit shown in Figure 1, it is the typical circuit that energy-conservation inductive-capacitive ballast is applied, be in lamp panel or lamp bracket, will use with the ballast circuit pairing of the fluorescence circuit of the Inductive ballast (2) of power and energy-conservation Inductive ballast (1) capacitor (3), here, following relation is satisfied in the work pressure drop of energy-conservation inductive-capacitive ballast (1) and the pressure drop of discharge lamp :-12%≤(ballast pressure drop-discharge lamp pressure drop)/discharge lamp pressure drop * 100%≤+ 175%, capacitor (3) is pressed I=W/U X for its capacity _C=U/I C=1/ ω X _C* 10-6 calculates, and C multiply by the capacitor of correction factor K, and in the formula: W-is the meritorious power consumption (W) of low consumption inductance ballast circuit, and U-is the input voltage (V) of low consumption Inductive ballast, and I-is the circuit active current (A) of low consumption Inductive ballast, X _C-be the capacitive reactance (Ω) of capacitor, ω-be angular frequency, C-is capacitor volume calculated value (μ F), correction factor K value is 0.5-1.6.

Because the fluorescence circuit of Inductive ballast (2) is a perception, the ballast circuit of energy-conservation Inductive ballast (1) capacitor (3) is a capacitive, and pairing uses the power factor of back ballast circuit more than 0.9.During as unpaired use single Lantern Festival can inductive-capacitive ballast (18W) BEF value up to 4.054, and power factor only is 0.3.Inductive ballast with same power (18W) connects by circuit shown in Figure 1, and the line power factor of conjugation operation is 0.95.Because the leading modulating voltage of lamp current of inductive-capacitive ballast, the lamp current hysteresis modulating voltage of Inductive ballast, two lamps keep 90 ° phase deviation approximately on fluorescent lifetime, be equivalent to the glow frequency of system is doubled, improve illumination, also remedied the fluorescent tube stroboscopic problem that is caused because of power frequency 50Hz simultaneously.

Circuit shown in Figure 2, be the application circuit of conjugation-type ballast for fluorescent lamps at one end fluorescent lamp, before this, the one end fluorescent lamp ballast is the world of electric ballast substantially, conjugate ballast obvious energy conservation of the present utility model, ratio of performance to price height will be broken the general layout that electric ballast rules all the land.

Fig. 3 is the product structure schematic diagram of one end fluorescent lamp conjugate ballast circuit shown in Figure 2, and Inductive ballast (1) (2), capacitor (3), starter (4) all are encapsulated in end cover (7) and the base plate (6) in the drawings, are connected with external power source by lamp holder (8).Conjugation-type ballast for fluorescent lamps in lamp panel or lamp bracket can use the Inductive ballast and the energy-conservation inductive-capacitive ballast of any structure pattern, as TU, EI, C type, O type, ring-like etc.According to the one end fluorescent lamp design feature, (1), (2) in the one end fluorescent lamp conjugate ballast circuit shown in Figure 2 are ring type structure.The geometry of Circular Type Ballast iron core roll film and the curve of flux loop adapt, and magnetic flux density can reach more than the 1.8T, under the square one, have possessed the little characteristics of volume, and these characteristics adapt with the one end fluorescent lamp design feature.

Claims

1. conjugation-type ballast for fluorescent lamps, comprise that Inductive ballast (2) is characterized in that: the ballast circuit of the same Inductive ballast of fluorescence circuit (1) capacitor (3) of described Inductive ballast (2), and be connected on power supply L and the N, wherein, following relation is satisfied in the work pressure drop of Inductive ballast (1) and the pressure drop of discharge lamp :-12%≤(ballast pressure drop-discharge lamp pressure drop)/discharge lamp pressure drop * 100%≤+ 175%, capacitor (3) is pressed I=W/U X for its capacity _C=U/I C=1/ ω X _C* 10-6 calculates, and C multiply by the capacitor of correction factor K, and in the formula: W-is the meritorious power consumption (W) of low consumption inductance ballast circuit, and U-is the input voltage (V) of low consumption Inductive ballast, and I-is the circuit active current (A) of low consumption Inductive ballast, X _C-be the capacitive reactance (Ω) of capacitor, ω-be angular frequency, C-is capacitor volume calculated value (μ F), correction factor K value is 0.5-1.6.

2. conjugation-type ballast for fluorescent lamps according to claim 1, it is characterized in that: described conjugation-type ballast for fluorescent lamps is a single-ended structure, Inductive ballast (1) (2), capacitor (3), starter (4) all are encapsulated in end cover (7) and the base plate (6), are connected with external power source by lamp holder (8).

3. conjugation-type ballast for fluorescent lamps according to claim 1 and 2 is characterized in that: described Inductive ballast (1), (2) are loop configuration.