KR20070098386A - Magnetic type ballast for numbers of lamp - Google Patents

Abstract

A magnetic type ballast for multiple lamps is provided to improve power consumption efficiency by using a power factor correcting capacitor and an insulation member. A magnetic type ballast for multiple lamps includes a core(10), coils(13,14), a first power supply terminal(AC1), a load terminal, and a second power supply terminal(AC2). The core includes a central bump and plural outer bumps. The central bump forms a shared magnetic path. The outer bumps form independent magnetic paths. The coils are wound around the respective outer bumps in the same direction. The first power supply terminal is coupled with first end portions of the respective coils. The load terminal couples second end portions of the respective coils with one end of the load. The second power supply terminal is coupled with the other end of the load.

Description

Magnetic type ballasts {Magnetic type ballast for numbers of Lamp}

1 is a diagram for explaining a general discharge lamp driving circuit.

Figure 2 is an equivalent circuit diagram for explaining a magnetic multi-function ballast in accordance with an embodiment of the present invention.

3A to 4D are perspective views illustrating a ballast having various configurations according to an embodiment of the present invention.

5 is an equivalent circuit diagram for describing a magnetic multi-function ballast according to another embodiment of the present invention.

6A and 6B are perspective views illustrating magnetic multi-function ballasts of various configurations according to another exemplary embodiment.

7 is a circuit diagram illustrating the power factor correction capacitor of the magnetic multi-stable ballast according to the present invention.

The present invention relates to a magnetic lamp ballast, and more particularly, it is possible to light a plurality of discharge lamps at the same time through a magnetic ballast, which is relatively inexpensive compared to an electronic ballast, the price is low, but the power efficiency is improved. A magnetic multi-function ballast that can be promoted.

In general, as shown in FIG. 1, in the driving circuit of a discharge lamp, a power factor correction capacitor C, a discharge lamp LP, and a lighter S are connected in parallel with each other between two power input terminals. The ballast L is connected in series between (C) and one terminal of the discharge lamp LP.

In such a configuration, the above-mentioned lighter S, also called "starter" or "igniter", serves to start the lighting of the discharge lamp LP at the time of power supply, and to supply the AC voltage to start the lighting. The surge voltage can be supplied at the start of lighting of the discharge lamp LP such as a fluorescent lamp, a metal halide lamp, a sodium lamp, and a mercury lamp.

And the ballast (L) is to ensure that the constant voltage is supplied to the discharge lamp (LP) after the discharge lamp (LP) starts to light by the lamp (S) to maintain the lighting with a constant illuminance, such a ballast ( As L), a magnetic ballast having a form in which a coil is wound around a core and an electronic ballast using semiconductor components are used.

However, in the case of an electronic ballast, a type capable of simultaneously driving a plurality of discharge lamps with one ballast is provided by utilizing the characteristics of the design flexibility of a semiconductor circuit, whereas in the case of a magnetic ballast, each discharge lamp LP is provided. There is a problem that only the type that can be installed in a 1: 1 to light the discharge lamp LP is provided.

Furthermore, in the conventional magnetic ballast, when the cores are fixed by using the joints between the cores or the fixing brackets, or when the cores are fixed with the support, the insulation state of the fixing brackets and the cores is not good, resulting in poor eddy loss. There was a problem that occurred.

Accordingly, in the present invention, it is possible to reduce the product cost by solving the conventional problems as described above, so that a plurality of discharge lamps can be simultaneously turned on through one magnetic ballast which is relatively inexpensive compared to the electronic ballast. Of course, to provide a magnetic multi-function ballast that can improve its power efficiency.

To this end, the magnetic multi-function ballast according to an embodiment of the present invention is a core consisting of a central projection for forming a shared magnetic path and a plurality of outer protrusions located around the central projection to form each independent magnetic path; A coil, which is wound in the same direction on each of the plurality of outer protrusions, a first power supply terminal which is in contact with one side lead-out of each of the coils, and one end of the load, respectively And a second power supply terminal which is in contact with a load terminal and the other end of the load.

In this case, the core may be formed of an E core having a central protrusion formed at a center thereof and having an outer protrusion formed at both sides of the central protrusion, and an I core coupled to the E core to form a closed loop.

In addition, the core may be formed of a polygonal central projection located in the center, and the outer projections respectively coupled to the side surfaces of the central projection to form a closed loop.

In addition, the core may be composed of a central projection located in the center, an outer projection located on both sides of the central projection, and an interlayer projection that projects vertically from the outer projection to partition the outer projection into a plurality of zones.

In addition, the core is a core having a continuous shape of the two E cores to have a central projection located in the center and two inner projections respectively located on both sides of the central projection and two outer projections located on the outside of the inner projection, And an I core coupled to the two E cores in a continuous shape to form a closed loop.

However, a gap is formed at one side of the core, and the gap is preferably formed within 200-50 μm.

In addition, it is preferable that the gap is selectively inserted with insulation means made of crepe paper, nomex paper, manila paper, or heat-resistant film, or selectively filled or coated with heat-resistant paint, teflon, epoxy or varnish.

In addition, the coil is preferably made of any one of the (LITY) wire, enamel wire, or aluminum ring.

In addition, it is preferable that an insulating means made of heat-resistant paint, Teflon, epoxy, or varnish is selectively applied between the E core and the I core or between the center protrusion and the outer protrusion.

In addition, a locking groove is formed on both sides of the bottom of the core, and further includes a fixing bracket having a locking ring coupled to the locking groove, including the locking groove of the core, or the entire bottom surface of the core or the fixing bracket. It is preferable that an insulating means made of heat-resistant paint, Teflon, epoxy, or varnish is selectively applied to the entire bottom surface of the fixing bracket in contact with the bottom surface of the core, including the inner portion of the formed hook.

Further, it is more preferable that capacitors for improving power factor are connected to each of the loads in parallel.

On the other hand, one configuration of the magnetic multi-stable ballast according to another embodiment of the present invention, the central projection for forming a common path and two outer projections for forming each independent path located on both sides of the central projection A core consisting of: a primary coil wound on any one of the outer protrusions; a secondary coil wound on the other side of the outer protrusion in the same direction as the primary coil; and a plurality of strands forming a bundle; It characterized in that it comprises a power supply terminal connected to each of the two side lead-out of the secondary coil and a load terminal for connecting the both ends of the winding of each of the secondary coils forming the bundle with both ends of the load, respectively.

In addition, another configuration of the magnetic multi-stable ballast according to another embodiment of the present invention, the central projection for forming a common path and the two outer projections for forming each independent path located on both sides of the central projection A core formed of the core coil, a primary coil wound around the central projection, a secondary coil wound around the central projection in the same direction as the primary coil, and having a plurality of strands, and both sides of the primary coil And a load terminal for connecting both lead portions of each of the secondary coils constituting the bundle to both ends of the load, respectively.

In this case, the core may be formed of an E core having a central protrusion formed at a center thereof and having an outer protrusion formed at both sides of the central protrusion, and an I core coupled to the E core to form a closed loop.

However, a gap is formed at one side of the core, and the gap is preferably formed within 200-50 μm.

In addition, it is preferable that the gap is selectively inserted with insulation means made of crepe paper, nomex paper, manila paper, or heat-resistant film, or selectively filled or coated with heat-resistant paint, teflon, epoxy or varnish.

In addition, the coil is preferably made of any one of the (LITY) wire, enamel wire, or aluminum ring.

In addition, it is preferable that an insulating means made of heat-resistant paint, Teflon, epoxy, or varnish is selectively applied to the joint portion between the E core and the I core.

In addition, a locking groove is formed on both sides of the bottom of the core, and further includes a fixing bracket having a locking ring coupled to the locking groove, including the locking groove of the core, or the entire bottom surface of the core or the fixing bracket. It is preferable that an insulating means made of heat-resistant paint, Teflon, epoxy, or varnish is selectively applied to the entire bottom surface of the fixing bracket in contact with the bottom surface of the core, including the inner portion of the formed hook.

Furthermore, it is preferable that capacitors for improving power factor are connected to each of the loads in parallel.

Hereinafter, with reference to the accompanying drawings to be described in detail with respect to the magnetic multi-function ballast according to a preferred embodiment of the present invention.

2 is an equivalent circuit diagram illustrating a magnetic multi-function ballast according to an embodiment of the present invention, Figures 3a to 4d is a magnetic multi-function ballast of various configurations according to an embodiment of the present invention Perspective view.

First, as shown in Figure 2, the equivalent circuit of the magnetic multi-function ballast according to an embodiment of the present invention, each winding on the outer protrusions of the core 10 having a gap 12 on one side As the coils are wound in the same direction, coils 13 and 14 are formed, and one side lead-out of each coil 13 and 14 is in contact with the first power supply terminal AC1, and the coils 13 and 14 are The load terminals formed on the other side lead-out part are respectively connected to one end of the lighter S and discharge lamps LP which are loads connected in parallel with each other, and the second power supply terminal AC2 is connected to each other in parallel. It is configured to be in contact with the other end of the registration (S) and the discharge lamp (LP).

At this time, the coils 13 and 14 are wound in the same direction so that magnetic flux cancellation does not occur. Between the outer protrusions, a path of magnetic flux ø ₁ generated by an AC power applied to one coil 13 and the other side is provided. the central projection 11 is provided in the sharer to share magnetic fluxes (ø ₂₎ path is generated as the ac power supply to the coil 14 is such that (磁路) is formed.

In addition, the magnetic ballast generated by the current flowing from the AC power source compensates for the decrease in power factor caused by the energy stored in the magnetic field. In order to compensate for the disadvantage, the power factor preventing capacitors C1 and C2 are installed in parallel in the lighters S and the discharge lamps LP connected in parallel with each other.

Therefore, it is possible to perform the role of two magnetic ballasts with one magnetic ballast, as well as to reduce the cross-sectional area to reduce the manufacturing cost.

On the other hand, the magnetic multi-function ballast according to an embodiment of the present invention as described above may be implemented in a variety of configurations, as such a configuration, first, as shown in Figure 3a, E core 20 of the laminated shape ) And the I core 21 are mutually coupled to each other, two outer protrusions 20b and 20c are provided at both ends of the E core 20 and one central protrusion 20a is provided to the inside thereof. A gap 24 is formed between the central protrusion 20a of the core 20 and the I core 21, and one winding of each of the two outer protrusions 20b and 20c is wound in the same direction. As the coils 22 and 23 are formed, magnetic resistant ballasts of magnetic type are mentioned.

According to this configuration, as shown in FIG. 2, one lead portions of each of the coils 22 and 23 wound around the outer protrusions 20b and 20c of the E core are in contact with the first power supply terminal AC1, and each The load terminals formed at the other outlet portions of the coils 22 and 23 are connected to one ends of the lighters S and the discharge lamps LP connected in parallel with each other, and the other ends of the lighters S and the discharge lights LP are formed. 2 It can be connected to the power supply terminal (AC2) it is possible to turn on the two discharge lamps (LP) by using a magnetic multi-function ballast.

In this case, as the gap 24 is smaller, the generation of noise can be prevented, the ballast can be miniaturized, and the efficiency can be improved. However, the gap 24 formed in the core is generally 150 μm or less. When exposed to air in one state, an air gap is formed and various foreign substances are introduced between the air gaps, and when processing various types of cores including the E core 20 and the I core 21. As a burr protrudes from the cut surface of the gap 24 to change (ie, increase) the leakage magnetic flux, the desired magnetic flux cannot be obtained.

Accordingly, the gap 24 may be formed to have a thickness of 200-50 μm to prevent noise, stabilize, and increase efficiency of the ballast, and may reduce the eddy loss that may occur in the gap 24. It may be desirable to insert, fill, or apply an insulating means between the gaps 24. As the insulating means, kraft paper (KP), nomex paper, manila paper, or a heat resistant film may be used. Or heat resistant paints having good insulation properties, heat resistance properties, durability and mechanical strength, or Teflon, epoxy, varnish, or the like may be used.

On the other hand, the contact portion between the outer side protrusions 20b and 20c of the E core 20 and the I core 21 except for the gap 24 formed on one side of the core 20 is more clearly known from FIG. 3B to be described later. As can be, by applying an insulating means (not shown), such as heat-resistant paint, Teflon, epoxy or varnish to insulate their contacts to prevent the occurrence of minute gaps to reduce the eddy loss.

In addition, the locking groove (20d) is formed on both sides of the bottom of the E core 20 to be engaged with the engaging ring (25a) of the fixing bracket 25 used to fix the ballast to various structures. In this case, the bottom surface of the E core 20 including the locking groove 20d of the E core 20 or the inner portion of the locking ring 25a contacting the locking groove 20d of the E core 20 may be included. Eddy that can be generated between them by selectively applying insulation means (35b of FIG. 3B) such as heat-resistant paint or Teflon, epoxy or varnish to the bottom surface of the fixing bracket 25 in contact with the bottom surface Loss can be reduced.

According to this, the gap 24 of the E core 20, the contact portions of the outer protrusions 20b and 20c and the I core, or the contact portion of the fixing bracket 25a are mutually insulated through the above insulating means. Accordingly, it is possible to prevent or reduce changes in magnetic flux density and eddy loss generated between the contact portions and to accurately obtain a desired amount of leakage magnetic flux.

Meanwhile, in order to reduce the number of windings of the coils 22 and 23, it is preferable to use a rich wire, an enameled wire, or an aluminum round wire. For example, the coils 22 and 23 are used as the aluminum round wire. The specific gravity is about 30% lower than that of conventional copper, but the resistivity is about 130% higher than that of copper, so that the coil wound around the aluminum ring in order to have the same resistance value as when copper is used ( 22, 23) can be increased by 30% compared to copper. Accordingly, the surface area of the magnetic ballast is widened, so that heat dissipation is well performed, and thus, a product having a long life and low loss can be manufactured at a low price.

Hereinafter, another configuration of the magnetic multi-stable ballast according to an embodiment of the present invention will be described. However, hereinafter, redundant description will be omitted.

Figure 3b is a perspective view for explaining another configuration of the magnetic multi-stable ballast according to an embodiment of the present invention. In FIG. 3B, two outer protrusions 30b and 30c are provided at both ends of the E core 30, and one center protrusion is provided at both ends of the E core 30 and the I core 31. 30a is provided, and a gap 34 is formed between the central protrusion 30a of the E core 30 and the I core 31, wherein the E core 30 and the I core 31 face each other. One example is a configuration in which coils 32 and 33 are formed by winding windings of one strand in the same direction at each position.

In this configuration, one side lead-out portions of the coils 32 and 33 respectively wound at positions opposed to each other are in contact with the first power supply terminal AC1 and are formed at the other side lead-out portions of the respective coils 32 and 33. The load terminals are respectively connected to one side of the lighter S and the discharge lamp LP connected in parallel to each other, and the other side of the lighter S and the discharge lamp LP is shared with the second power supply terminal AC2. It is possible to light two discharge lamps (LP) by using a magnetic multi-function ballast.

In the above, the structure which can light two discharge lamps using one magnetic ballast was demonstrated. However, hereinafter, a description will be given of the shape of the lighter that can light more discharge lamps using one magnetic ballast.

First, FIG. 4A illustrates a shape in which four discharge lamps can be turned on by using one ballast. In order to satisfy an equivalent circuit as described with reference to FIG. 2, a center protrusion having a stacked square pillar shape is illustrated. Four outer protrusions are formed by joining the cores 42a to 42d having the "C" shape to each side of the central protrusion 41 with the 41 interposed therebetween. Is wound in the same direction to form the coils 43a to 43d in each of the four discharge lamps LP.

In this configuration, one side lead-out portions of each of the coils 43a to 43d wound around the cores 42a to 42d having the "c" shape are in contact with the first power supply terminal AC1 and each of the coils 43a to The load terminals formed at the other lead-out portion of the other side 43d are connected to one side of the lighter S and the discharge lamp LP connected in parallel with each other, and the other side of the lighter S and the discharge light LP is the second power supply terminal. As a result of co-operation with (AC2), it is possible to light four discharge lamps LP using one magnetic multi-function ballast.

Hereinafter, a detailed description of the insulation means 44 and the like applied to the junction of the center projection 41 and each of the "c" shaped core as described above will be omitted.

On the other hand, the magnetic multi-function ballast according to the present invention is not limited to the configuration including the central projection 41 of the rectangular columnar shape as shown in Figure 4a, in addition to the configuration including the central projection of the polygonal column, such as hexagonal or octagonal It is possible.

That is, for example, as shown in FIG. 4B, cores 52a to 52h having a “c” shape on each side of the central protrusion 51 with the central protrusion 51 having an octagonal columnar shape therebetween. It is formed so as to be provided with eight outer protrusions, and each coil 54 is formed by winding a winding of one strand in each outer protrusion in the same direction, as described above "c" shaped One lead portion of each coil 54 wound around the cores 52a to 52h is co-excited with the first power supply terminal AC1, and load terminals formed at the other lead portion of each coil 54 are connected in parallel to each other. By connecting the lighters S and one side of the discharge lamps LP to each of the eight discharge lamps LP, one magnetic ballast may be turned on.

On the other hand, in Fig. 4c, unlike the above-described configuration, the laminated E core 60 and the I core 61 are coupled and protrude vertically from the outer protrusions 60b and 60c of the E core 60, and thus the outer protrusions. The interlayer protrusions 62a and 62b are formed to divide the 60b and 60c into a plurality of zones, and each of the coils 64a to 64d is wound in the same direction in each of the partitioned outer protrusions 60b and 60c. As a result, a configuration of lighting four discharge lamps LP using one magnetic lamp is also possible.

However, in the above example, one interlayer protrusions 62a and 62b are formed in the outer protrusions 60b and 60c, respectively, but the present invention is not limited thereto. It is also possible to form three interlayer protrusions so that more discharge lamps LP can be turned on as more windings can be wound.

Furthermore, although the configuration for implementing the equivalent circuit of FIG. 2 described above with reference to FIGS. 3A to 4C is an inner ballast, a configuration capable of turning on a plurality of discharge lamps LP may also be possible using an outer steel type. will be.

That is, as shown in FIG. 4D, as the two E cores couple the I core 71 to the core 70 having a continuous shape, two inner sides are provided on both sides of one central protrusion 70e. The protrusions 70c and 70d are provided, and two outer protrusions 70a and 70b are provided on the outside thereof, and then the windings are wound in the same direction by one strand on the two inner protrusions 70c and 70d. It can also be configured as an outer convex shape so that the coils 72 and 73 are formed, respectively.

As described above, even in the case of the outer convex type in which the coils 72 and 73 are formed in the same direction in the inner protrusions 70c and 70d, the directions of the magnetic fluxes generated when current flows through the respective coils 72 and 73 are the same. The magnetic flux cancellation between mutual coils does not occur. Accordingly, the counter electromotive force is prevented from occurring between the two coils so that the same voltage is applied to the two coils 72 and 73, and the discharge lamps LP connected to each coil can be stably lit without interference. do.

Hereinafter, a magnetic multi-function ballast according to another embodiment of the present invention will be described.

FIG. 5 is an equivalent circuit diagram illustrating a magnetic multilevel ballast according to another exemplary embodiment of the present invention, and FIGS. 6A and 6B are perspective views illustrating various types of ballasts according to another exemplary embodiment of the present invention.

First, as shown in Figure 5, the equivalent circuit of the magnetic multi-function ballast according to another embodiment of the present invention, the core 10 'of various shapes provided with a gap 13' on one side thereof. Two coils 11 'and 12' are respectively wound in the same direction, and both side lead-out portions of the primary coil 11 'are connected to the power supply terminal AC1, respectively, and the secondary side of which a plurality of coils are bundled. The load terminals formed at both lead portions of the coil 12 ′ are respectively connected to both ends of the plurality of lighters S and the discharge lamps LP connected in parallel to each other, and to the lighters S and the discharge lamps LP. The power factor prevention capacitors are connected in parallel to compensate for the disadvantages of the magnetic ballast, which is less power efficient than the electronic ballast.

As one configuration of the magnetic multi-stable ballast according to another embodiment of the present invention as described above, first, as shown in Figure 6a, the stacked E core 80 so that the gap 82 is formed on one side. ) And the I core 81, and the primary outer coil (80b) on one side of the E core 80 to form a primary multi-coil (83) so that both side leads are respectively connected to the power supply terminals (AC1, AC2), On the other outer protrusion 80c of the E core 80, at least two or more strands of windings are formed to form a secondary multi-coil 84 wound in a bundle form, and both side lead portions of the secondary multi-coils 84 in the bundle state are formed. And a configuration connected to both terminals of the discharge lamp LP and the lighter S connected in parallel with each other.

At this time, the primary multi-coil 83 is wound on one side outer projection (80b) of the E core 80 may be made of one winding of the winding or a plurality of windings wound in a bundle, one strand Regardless of the shape, both ends of the primary multi-coil 83 itself may have the same impedance by connecting the two power supply terminals AC1 and AC2, respectively, and may be wound in any form.

However, the secondary multi-coil 84 for driving the discharge lamp LP by using the voltage induced from the primary multi-coil 83 is turned on so that a plurality of discharge lamps LP can be turned on with one magnetic ballast. The number of strands equal to the number of discharge lamps LP to be made is wound in a bundle form.

Accordingly, each winding of the secondary multi-coil 84 wound simultaneously in the bundle form has the same impedance and leakage magnetic flux amount, so that a plurality of discharge lamps LP are driven using one magnetic ballast. The inequality between each of the discharge lamps LP is resolved so that the discharge lamps LP emit light having the same brightness, and the driving of the discharge lamps LP can be made stable without affecting each other. .

In this case, every time the layer is transformed into the secondary die coil 84 wound on each layer when the secondary die coil 84 is wound on the other outer protrusion 80c of the E core 80 as described above. It is difficult to manufacture the alternating arrangement type of the type that cuts the corresponding portion and electrically connects the coil end of the adjacent layer through the external terminal (not shown). When the windings are separated from each other to be wound on the other outer protrusion 80c of the E core 80, the leakage magnetic flux and impedance between the windings are different so that the brightness of the discharge lamp is different from each other, as well as any one of them. If it is not turned on for a reason, an unbalance occurs in the brightness of each discharge lamp.

Therefore, when the secondary multi-coil 84 is wound, it is preferable to wound the plurality of windings in the form of a bundle as described above so as to wind them simultaneously.

On the other hand, as another configuration of the magnetic multi-function ballast according to another embodiment of the present invention, as shown in Figure 6b, the stacked E core 90 and I core so that a gap 92 is formed on one side The first multi-coil 93 and both of the lead-out portions connected to the central protrusion 90c of the E core 90 and connected to the power supply terminals AC1 and AC2 are respectively connected in parallel with each other. The secondary die coil 94 connected to both terminals of the discharge lamp LP and the lighters S is simultaneously wound in the same direction, but the primary and secondary die coils 93 and 94 have at least two strands. And a configuration wound around the central protrusion 90c in the form of a bundle.

In this case, the primary multi-coil 93 can be formed by winding one strand or multiple windings in bundles, whereas the secondary multi-coil 94 has a plurality of magnetic ballasts. As mentioned above, the number of strands equal to the number of the discharge lamps LP to be lit should be wound in a bundle so that the dog discharge lamps LP can be turned on.

According to this, each winding impedance of the secondary multi-coil 94 wound simultaneously in the form of a bundle in the center projection (90c) of the E core 90 is the same as well as the leakage magnetic flux amount is equal to use a single magnetic ballast Thus, at least two or more of the plurality of discharge lamps LP can be stably driven.

Hereinafter, a power factor improving capacitor of the magnetic multi-stable ballast according to the present invention will be described in detail.

FIG. 7 is a circuit diagram illustrating a power factor improving capacitor of a magnetic multi-stable ballast according to the present invention, and FIGS. 7A to 7F illustrate power factor improving capacitors of an installable configuration.

First, as shown in (a) of FIG. 7, the power factor improving capacitors C1 and C2 are respectively disposed in parallel between the intermediate terminal of each coil L1 and L2 and the second power supply terminals AC1 and AC2. Connected. Accordingly, the power factor of the magnetic multi-stable ballast can be improved. In addition, the amount of current flowing through the coils L1 and L2 can be reduced to reduce the thickness of the coils L1 and L2 as well as to reduce the loss thereof.

Meanwhile, as shown in FIG. 7B, the power factor improving capacitors C1 and C2 are disposed between the coils L1 and L2 and the discharge lamp LP and between the second power supply terminals AC1 and AC2. In parallel to each other, it is also possible to improve the power factor as described above, as well as to reduce the thickness and power loss of the coil (L1, L2) is also possible.

Furthermore, as shown in FIG. 7C, when the power factor improving capacitors C1 and C2 are connected in parallel to both ends of each coil, the power factor is improved as described above and the coils L1 and L2 In addition, thickness and power loss can be reduced, and in particular, even when the discharge lamp LP is turned off, leakage current leakage through the power factor improving capacitors C1 and C2 connected in series with the discharge lamp LP can be prevented from occurring. Will be.

Hereinafter, since descriptions of FIGS. 7D to 7F are similar to those of FIGS. 7A to 7C, description thereof will be omitted.

In the above it has been described with respect to the present invention capable of lighting a plurality of discharge lamps LP with one magnetic multi-function ballast. According to the present invention, the purpose of installation of the discharge lamp LP to be turned on or the place of installation (for example, when two discharge lamps LP are used as one lighting fixture or several discharge lamps LP are installed inside) Etc.) may be manufactured and used in any one of the above embodiments, or may be used to produce a core having more outer and center projections.

The magnetic multi-light lamp according to the present invention has been described above. Such a technical configuration of the present invention will be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention.

In particular, the present invention can be used to include both the inner or outer iron type, as well as the stratified iron core or wound iron core type, the material can be used both directional and non-oriented silicon steel sheet, various shapes It will be apparent to those skilled in the art that various ferrite cores can be used, and various cores can be used, such as amorphous cores, which can minimize losses.

Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the appended claims rather than the foregoing description, and the meanings of the claims and All changes or modifications derived from the scope and equivalent concepts thereof should be construed as being included in the scope of the present invention.

According to the magnetic multi-stable ballast of the present invention as described above, it is possible to light a plurality of discharge lamps at the same time through a single magnetic ballast, which is relatively inexpensive compared to the electronic ballast, while the price is cheap, power factor improvement capacitor And by providing the insulating means it is possible to improve the power efficiency.

Claims (20)

A core consisting of a central protrusion for forming a shared magnetic path and a plurality of outer protrusions positioned around the central protrusion to form each independent magnetic path; A coil wound around each of the plurality of outer protrusions in the same direction; A first power supply terminal which is in contact with one side lead-out of each coil; A load terminal for connecting the other lead portions of the respective coils to one end of the load; And A second power supply terminal in common with the other end of the load; Magnetic lamp ballast characterized in that it comprises a. The method of claim 1, The core is a magnetic projection ballast characterized in that the central projection is formed in the center and the outer core on both sides of the central projection is formed E core, and the I core coupled to the E core to form a closed loop. . The method of claim 1, The core is a magnetic multi-function ballast, characterized in that consisting of the central projection of the center of the polygonal column located in the center, and the outer projections respectively coupled to the sides of the central projection to form a closed loop. The method of claim 1, The core is a magnetic projection comprising a central projection located in the center, an outer projection located on both sides of the central projection, and an interlayer projection that projects vertically from the outer projection to partition the outer projection into a plurality of zones. Back ballast. The method of claim 1, The core is a core having two E cores in a continuous shape so as to have a central protrusion located at the center, two inner protrusions respectively located at both sides of the central protrusion, and two outer protrusions located at the outside of the inner protrusion, and closed. The magnetic multi-function ballast of claim 2, wherein the two E cores are composed of an I core coupled to a core having a continuous shape to form a loop. The method according to any one of claims 1 to 5, A gap is formed at one side of the core, the gap is magnetic multi-function ballast characterized in that formed within 200-50㎛. The method of claim 6, The gap is magnetically characterized by inserting or installing insulating means made of kraft paper, nomex paper, manila paper, or heat-resistant film, or selectively filling or applying heat-resistant paint, teflon, epoxy or varnish. Back ballast. The method according to any one of claims 1 to 5, The coil is a magnetic multi-function ballast, characterized in that made of any one of the (LITY) wire, enamel wire, or aluminum ring. The method according to any one of claims 2 to 5, And an insulating means made of heat-resistant paint, teflon, epoxy, or varnish is selectively applied between the E core and the I core or between the central and outer protrusions. The method according to any one of claims 1 to 5, A locking groove is formed at both sides of the bottom of the core, and further includes a fixing bracket having a locking ring coupled to the locking groove, and includes the entire bottom surface of the core or the fixing bracket including the locking groove of the core. Insulation means made of heat-resistant paint, Teflon, epoxy, or varnish is selectively applied to the entire bottom surface of the fixing bracket in contact with the bottom surface of the core, including the inner portion of the hook ring. ballast. The method according to any one of claims 1 to 5, The power factor improving capacitor is connected to each of the load, characterized in that the magnetic multi-function ballast in parallel. A core consisting of a central protrusion for forming a sharer and two outer protrusions positioned at both sides of the central protrusion to form respective independent passages; A primary coil wound around any one of the outer protrusions; A secondary coil wound on the other side of the outer protrusion in the same direction as the primary coil and having a plurality of strands; A power supply terminal connected to both of the outlet portions of the primary coil; And Load terminals for connecting both lead portions of each of the windings of the secondary coil forming the bundle with both ends of the load, respectively Magnetic lamp ballast characterized in that it comprises a. A core consisting of a central protrusion for forming a sharer and two outer protrusions positioned at both sides of the central protrusion to form respective independent passages; A primary coil wound around the central projection; A secondary coil wound around the central protrusion in the same direction as the primary coil and having a plurality of strands; A power supply terminal connected to both of the outlet portions of the primary coil; And Load terminals for connecting both lead portions of each of the windings of the secondary coil forming the bundle with both ends of the load, respectively Magnetic lamp ballast characterized in that it comprises a. The method according to claim 12 or 13, The core is a magnetic projection ballast characterized in that the central projection is formed in the center and the outer core on both sides of the central projection is formed E core, and the I core coupled to the E core to form a closed loop. . The method according to claim 12 or 13, A gap is formed at one side of the core, the gap is magnetic multi-function ballast characterized in that formed within 200-50㎛. The method of claim 15, The gap is magnetically characterized by inserting or installing insulating means made of kraft paper, nomex paper, manila paper or heat resistant film, or selectively filling or applying heat resistant paint, teflon, epoxy or varnish. Back ballast. The method according to claim 12 or 13, The coil is a magnetic multi-function ballast, characterized in that made of any one of the (LITY) wire, enamel wire, or aluminum ring. The method of claim 14, The joint between the E core and the I core is selectively applied to the insulating means made of heat-resistant paint, Teflon, epoxy, or varnish. The method according to claim 12 or 13, A locking groove is formed at both sides of the bottom of the core, and further includes a fixing bracket having a locking ring coupled to the locking groove, and includes the entire bottom surface of the core or the fixing bracket including the locking groove of the core. Insulation means made of heat-resistant paint, Teflon, epoxy, or varnish is selectively applied to the entire bottom surface of the fixing bracket in contact with the bottom surface of the core, including the inner portion of the hook ring. ballast. The method according to claim 12 or 13, The power factor improving capacitor is connected to each of the load, characterized in that the magnetic multi-function ballast in parallel.

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