CN2204454Y - Leakage pulse autotransforming ballast - Google Patents

Abstract

The utility model provides a magnetism leakage type pulse auto-coupling transforming ballast, which is composed of a strip-shaped iron core, a rectangular iron core frame, a primary and a secondary coils, a filament coil, resistors and capacitors. The utility model is characterized in that the symmetry axis line position of the strip-shaped iron core is provided with an elliptical hole. Consequently, an energy-saving florescent lamp ballast which has simple structure, good technical performance and no starter and is suitable for national 220V and 50Hz power supplies and is capable of quickly starting a fluorescent lamp tube is realized.

Description

Leakage pulse autotransforming ballast

The utility model relates to a kind of fluorescent lamp ballast.

Normally used fluorescent lamp ballast belongs to condenser type and induction type more on the domestic and international market at present, power factor is generally about 50%, it is higher to consume energy, be energy savings, each producer has successively developed multiple new light source of high transform efficiency and supporting with it ballast in recent years, the patent No. is that 902202715 " magnetic-leakage type pulse self coupling transformation ballast " promptly provides a kind of novel energy-conserving ballast, power factor can reach 95%, yet its defective is that only being suitable at the power supply load voltage value is 120V or 277V, frequency is the state work down of 60HZ, mainly provide outlet, and to domestic load voltage value 220V, the power supply state of frequency 50HZ is inapplicable.

The purpose of this utility model is to utilize the principle of magnetic-leakage type pulse self coupling transformation ballast, provides that a kind of to be suitable at load voltage value be 220V, and frequency is the power supply status energy-saving fluorescent lamp ballast of work down of 50HZ.

The utility model is realized as follows: utilize magnetic-leakage type pulse autotransformer principle, change the leakage field situation of transformer, air gap with the part magnetic circuit, form the variation of magnetic flux, improve the ballast electrical performance indexes, adjust primary and secondary coil turn simultaneously, thus load voltage value and frequency values that acquisition needs.

Existing magnetic-leakage type pulse self coupling transformation ballast is by strip iron core (1), rectangle iron core frame (2), primary coil (3), secondary coil (4), resistor (6), capacitor (7), upper skeleton (10), lower skeleton (11), packing material (12), casing cover (9) and shell box (15) are formed, and strip iron core (1) is that the center is provided with a pair of leakage field utmost point that stretches out in bilateral symmetry with its axis of symmetry, the axis of symmetry position of strip iron core (1) above the leakage field utmost point that be characterised in that of the present utility model has hole, an ellipse garden, the secondary coil (4) that has upper skeleton (10) is according to two leakage field utmost points location, be enclosed within strip iron core (1) and have the side in hole, ellipse garden, the primary coil (3) that has lower skeleton (11) is according to two leakage field utmost points location, be enclosed within the opposing party of strip iron core (1), the cross-sectional area of strip iron core (1) is the 3-6 square centimeter, the cross-sectional area of rectangle iron core frame (2) is the 1-2 square centimeter, the gap that forms between extreme face of leakage field and the rectangle iron core frame (2) is the 0.1-0.2 millimeter, when changing transformer device structure, at the beginning of the adjustment, the number of turn of secondary coil, then adapt to 220V, the magnetic-leakage type pulse self coupling transformation ballast of 50HZ AC power is promptly finished, in use, when connecting AC power, when electric current passes through coil, hole, ellipse garden on the strip iron core (1) impels the magnetic line of force to form two leakage magnetic circuits through two leakage field utmost points that stretch out, and the magnetic flux that has in a part of iron core in hole, ellipse garden is saturated, at capacitor C1(7) coupling under, when supply voltage produces than great fluctuation process, because the effect of the hole, ellipse garden and the leakage field utmost point, make ballast output stable, simultaneously by adjusting coil turn, obtain suitable voltage rating, finally provide and be adapted at 220V, the 50HZ power supply state is the energy-saving fluorescent lamp ballast of work down.

The utility model has the advantages that: the iron core mount structure is simple, processing performance good, be applicable to the quick startup fluorescent tube that voltage is not high, mains fluctuations are big, need not to be provided with starter, improved the ballast electric property, especially domestic user's needs have been satisfied, in the use, only need to change the number of turn elementary, secondary coil, just can form the ballast that is suitable for single tube, the output of two-tube different capacity.

Description of drawings

Fig. 1 is a magnetic-leakage type pulse self coupling transformation ballast electrical schematic diagram, and it is applicable to double tube fluorescent lamp, and the power supply rated voltage is 220V, and frequency is 50HZ, wherein:

L1, L2 are that fluorescent lamp W1 is a primary coil

C1, C2 are that capacitor W2 is a secondary coil

R is that resistor W3, W4, W5 are heater windings

Fig. 2 is a magnetic-leakage type pulse self coupling transformation ballast structural representation

(1) strip iron core (2) rectangle iron core frame (3) primary coil (4) secondary coil

(5) terminal block (6) resistor (7) capacitor C1 (8) capacitor C2

(9) casing cover (10) upper skeleton (11) lower skeleton (12) filler

(13) heater winding (14) rivet (15) shell box

Embodiment:

Fig. 1, Fig. 2 illustrates respectively and is applicable to 220V, the double tube fluorescent lamp of the 50HZ power supply electrical schematic diagram and the structural representation of magnetic-leakage type pulse self coupling transformation ballast, as shown in Figure 2, this ballast is by strip iron core (1), rectangle iron core frame (2), primary coil (3), secondary coil (4), terminal block (5), resistor (6), capacitor C1(7), capacitor C2(8), casing cover (9), upper skeleton (10), lower skeleton (11), filler (12), heater winding (13), rivet (14), and casing cover (15) is formed, wherein strip iron core (1) and rectangle iron core frame (2) use 0.5 millimeter rolling silicon steel sheet punch forming, the cross-sectional area of the strip iron core after the stack (1) is 4 ± 0.2 square centimeters, length is 10 centimetres, it is long that rectangle iron core frame (2) is of a size of 11() * 5.5(is wide) centimetre, cross-sectional area is 1.5 ± 0.1 square centimeters, skeleton (10), (11) adopt injection-compression molding of fire-retardant propylene, with line directly is that 0.29 millimeter and 0.38 millimeter high strength copper core enamelled wire are in skeleton (10), (11) go up respectively coiling 1567 circles as primary coil (3) and 1650 circles as secondary coil (4), three heater windings (13) are the 50-60 circle, be wound on the primary coil (3), capacitor C1 is 4.4 μ f/350V, C2 is 0.047 μ f/350V, be metallized polypropylene film electric capacity, resistance R adopts the small-sized fixed carbon resister of RTX, resistance is 2M Ω/1/4W, strip iron core (1) is the center with its axis of symmetry, made a pair of leakage field utmost point that stretches out in bilateral symmetry, axis of symmetry position above the leakage field utmost point has hole, an ellipse garden, the secondary coil (4) that has upper skeleton (10) has a side in hole, ellipse garden at strip iron core (1) according to two leakage field utmost point positioning sleeves, the primary coil (3) that has lower skeleton (11) is enclosed within the opposing party of strip iron core (1) according to two leakage field utmost points location.As shown in Figure 2, with the two ends of two rivets (14) terminal block (5) strip iron core (1) and rectangle iron core frame (2) are fixed together by strip iron core (1), and device is in shell box (15), by two terminal blocks (5), according to electrical schematic diagram shown in Figure 1 with capacitor C1, C2, resistor R, just, secondary coil W1, W2 and heater winding W3, W4, W5 links together, after installing, and perfusion filler (12) in shell box (15), bag card casing cover (9), at this moment, double tube fluorescent lamp magnetic-leakage type pulse self coupling transformation ballast product, when being connected into two fluorescent tubes, connect 220V, the power supply of 50HZ can use.This product is tested through relevant departments such as electric light source quality monitoring inspection center of Ministry of Light Industry and Tianjin Bureaus of Technical Supervision, power factor is greater than 95%, relatively relative luminous intensity can be greater than 92.5% with the standard ballast, the ratio of peak current and effective value electric current is less than 1.7, the ratio of lamp two ends crest voltage and lamp two ends effective value voltage is less than 2, when unloaded, secondary coil two ends crest voltage is greater than 240V, and these parameters all meet the regulation of GB2313-80 " tubular flourescent lamp ballast ".

Claims (2)

1, a kind of magnetic-leakage type pulse self coupling transformation ballast, be by strip iron core, the rectangle iron core frame, primary coil, secondary coil, heater winding, resistor, capacitor, upper skeleton, lower skeleton, packing material, casing cover and shell box are formed, and strip iron core is the center with its axis of symmetry, be provided with a pair of leakage field utmost point that stretches out in bilateral symmetry, it is characterized in that the axis of symmetry position of strip iron core above the leakage field utmost point has hole, an ellipse garden, the secondary coil that has upper skeleton is according to two leakage field utmost points location, be enclosed within strip iron core and have the side in hole, ellipse garden, the primary coil that has lower skeleton is enclosed within the opposing party of strip iron core according to two leakage field utmost points location.

2, according to the described magnetic-leakage type pulse of claim 1 self coupling transformation ballast, the cross-sectional area that it is characterized in that said strip iron core is the 3-6 square centimeter, the cross-sectional area of rectangle iron core frame is the 1-2 square centimeter, and the gap that forms between extreme face of leakage field and the rectangle iron core frame is the 0.1-0.2 millimeter.

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