KR100963444B1 - Ballast for multiple lamps and manufacturing method thereof - Google Patents

Abstract

PURPOSE: A stabilizer for multiple lamps and a manufacturing method thereof are provided to reduce the eddy loss by curvedly forming the edge part of a first and a second core. CONSTITUTION: A first bobbin(21) has a bottom surface for the isolation function. A first coil(23) is wound in a first bobbin. The first coil controls the current flowing in the first discharge lamp. A second bobbin(22) has the upper side for the isolation function. The upper side of the second bobbin is contact with the bottom surface of the first bobbin. A second coil(24) is wound in the second bobbin. The second coil controls a current flowing in the second discharge lamp. Each of the first and the second core(25,26) includes a pair of core elements. The first and the second core form the flux path.

Description

BALLAST FOR MULTIPLE LAMPS AND MANUFACTURING METHOD THEREOF

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ballast of a discharge lamp lighting circuit, and more particularly, to a multi-ballast ballast used in a discharge lamp lighting circuit for simultaneously lighting a plurality of discharge lamps and a manufacturing method thereof.

When a discharge lamp, which is a lamp (lamp) that emits light by discharge, is directly connected to a power source and once a current begins to flow in the discharge lamp, the current rapidly increases, and an electrode terminal or a seal portion of the discharge lamp is momentarily destroyed. Therefore, a ballast is provided between the power supply and the discharge lamp to appropriately control the current of the discharge lamp.

In general, the magnetic ballast is composed of a coil provided with one or more cores has an inductance, and serves to supply a constant current by preventing an increase in current.

The conventional ballast is formed in the form of assembling the I-type core and the E-type core made of a plurality of silicon thin steel sheets in accordance with the corresponding capacity in the bobbin coiled coil to form a line of magnetic force in a constant traveling direction.

However, such a conventional ballast is formed in a structure for lighting only one discharge lamp, there is a problem that can not be used in a circuit for lighting a plurality of discharge lights at the same time. In addition, conventional ballasts must be welded at the time of mutual assembly between bobbins, type I cores and type E cores. There was an issue that was raised.

The present invention has been proposed in order to solve the problems of the prior art as described above, and an object of the present invention is to stack two bobbins each of which a coil is wound up and down, and to stack a pair of core elements having a ∩ shape and a ∪ shape. The present invention provides a ballast for multiple lamps and a method of manufacturing the same, which are assembled in both vertical directions on both sides of the two bobbins to form first and second cores, thereby simultaneously controlling the current flowing through a plurality of discharge lamps.

In order to achieve the above object, the multi-stabilizer according to the present invention comprises a cylindrical first bobbin having a bottom portion and a first winding wound around the outer surface of the first bobbin to control a current flowing in the first discharge lamp. A second coil is formed in a cylindrical shape having a coil, an upper surface portion, and the upper surface portion is disposed to contact the bottom portion of the first bobbin, and wound around the outer surface of the second bobbin, and flows in a second discharge lamp. The second coil for controlling the current and two core elements each having a vertical cross section in a ∩ shape and a ∪ shape are paired to be coupled up and down on both sides of the first and second bobbins so that the first and second Ends located outside the bobbin are connected to each other, and ends positioned inside the first and second bobbins are disposed at an interval between the thickness of the bottom of the first bobbin and the thickness of the upper surface of the second bobbin. It characterized in that the configuration including the first and second cores are spaced apart to form a flux path.

In order to achieve the above object, the method of manufacturing a ballast stabilizer according to the present invention comprises the steps of: forming a cylindrical first bobbin having a bottom portion and a cylindrical second bobbin provided with an upper surface portion; Winding the first coil to surround the outer side and winding the second coil to surround the outer side of the second bobbin, and forming the ∩ and ∪ core elements constituting the first and second cores; Stacking the first bobbin on top of the second bobbin such that the bottom portion of the first bobbin and the top surface of the second bobbin come into contact with each other; Assembling the first and second cores to the stacked first and second bobbins by assembling the core elements having a shape and a ∪ shape in the vertical direction on both sides of the stacked first and second bobbins, respectively; First nose Connection between the first power input of the lighting circuit of the first discharge lamp and the first discharge lamp and the second coil between the second power input of the lighting circuit of the second discharge lamp and the second discharge lamp. do.

The present invention can control the current flowing through a plurality of discharge lamps at the same time using a single ballast has the effect of increasing the power efficiency and simplify the overall configuration of the discharge lamp lighting circuit for lighting the plurality of discharge lights.

In addition, the present invention forms a cylindrical first bobbin provided with a bottom portion and a cylindrical second bobbin provided with an upper surface portion, and the first and second bobbins come into contact with the bottom portion of the first bobbin and the upper surface portion of the second bobbin. Lamination to form partitions by the bottom and upper surfaces in the inner spaces of the first and second bobbins, winding respective coils in the first and second bobbins, and laminating the first and second bobbins. By forming the first and second cores by combining the core and the core-shaped elements in the vertical direction from both sides of the first and second cores, the ends of the first and second cores located inside the first and second bobbins Spaced apart to form voids, and since the ends of the spaced apart first and second cores are not exposed to air, it is possible to prevent the inflow of foreign matter, and no separate insulation means is required between the first and second cores. Since the first and second cores are formed by assembling the X-shape and the X-shape core elements in the vertical direction, welding is not necessary for the connection between the core elements and thus the assembly is easy, thereby improving product productivity.

In addition, by winding each coil in each bobbin to remove electrical interference between the coils, the first and second cores are spaced apart by partitions formed in the inner space of the first and second bobbins to reduce the eddy loss. In addition, since edge portions of the first and second cores are formed to be bent, the eddy loss can be reduced, thereby increasing the power efficiency.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The present invention is to uniformly control the current flowing through a plurality of discharge lamps at the same time using a single ballast, at least one coil is laminated to two bobbins wound around the core and to be coupled to both sides of the stacked bobbins in the vertical direction It is formed in a predetermined shape and mounted on both sides of the laminated bobbin to form a ballast, there is no need for welding, easy assembly and improve product productivity.

Figure 1 shows an assembled perspective view of the ballast for multi-function according to an embodiment of the present invention.

As shown in Figure 1, the multi-stabilizer according to an embodiment of the present invention, the cylindrical first bobbin 21 is provided with a bottom portion, and wound to surround the outer surface of the first bobbin 21 And a second bobbin 22 having a cylindrical shape having an upper surface portion and a first coil 23 for controlling a current flowing through the first discharge lamp, and the upper surface portion being disposed to be in contact with the bottom portion of the first bobbin 21. ), A second coil 24 wound around the outer surface of the second bobbin 22 to control a current flowing through the second discharge lamp, and two core elements each having a vertical cross section having a ∩ shape and a ∪ shape The ends of the first and second bobbins 21 and 22 coupled to each other in an up and down direction and positioned outside the first and second bobbins 21 and 22 are connected to each other and are connected to each other. And end portions positioned inside the second bobbins 21 and 22 may have thicknesses of the bottom surface of the first bobbin 21. It comprises a first and second cores 25, 26 to form a magnetic flux path are spaced at intervals of a top portion thickness of the second bobbin (22).

Referring to FIG. 4, which will be described later, the first coil 23 includes a common node, a first light emitter 31, and a first power input unit 30 and a first capacitor of the lighting circuit of the first discharge lamp 32. It is connected in series between the common node of the first discharge lamp 32, the second coil 24 and the common node of the second power input unit 40 and the second capacitor of the lighting circuit of the second discharge lamp 42 It is connected in series between a common node of the second lamp 41 and the second discharge lamp 42.

As shown in FIG. 2, a cylindrical second bobbin 22 having an upper surface portion is disposed in a lower portion of the cylindrical first bobbin 21 provided with a bottom portion, and the first bobbin 21 is disposed. The second bobbin 22 forms a tubular shape in which a partition portion 27 is formed at an inner central portion thereof. That is, the bottom portion of the first bobbin 21 and the top surface of the second bobbin 22 are in contact with each other to form the partition portion 27 by the thickness of the bottom portion and the thickness of the top portion, and the first bobbin 21 and the second When the first and second cores 25 and 26 are coupled to both sides of the bobbin 22, the ends of the first and second cores 25 and 26 are spaced apart by the partition part 27. Are combined in a closed state.

Thus, the gap (gap) between the first and second cores 23 and 24 by the partition part 27 formed by the bottom part of the first bobbin 21 and the top part of the second bobbin 22. In addition, the gap formed is not exposed to the air, thereby preventing the inflow of foreign matters, and there is no need for a separate insulation means between the first and second cores 23 and 24. It is possible to reduce the eddy loss that can occur in the interval, thereby enabling high power efficiency.

As shown in FIG. 3, each of the first core 25 and the second core 26 has a pair of two core elements 1 and 2 having a longitudinal cross section formed in a ∩ shape and a ∪ shape. The first and second bobbins 21 and 22 are coupled in the vertical direction at both sides of the first and second bobbins 21 and 22 to cover the walls of the first and second bobbins 21 and 22. The upper recessed part by 21 and the lower recessed part by the 2nd bobbin 22 are respectively inserted and formed. Ends of the core elements 1 and 2 of the first core 25 located outside the first and second bobbins 21 and 22 are closely attached to each other and inside the first and second bobbins 21 and 22. End portions of the core elements 1 and 2 of the first core 25 positioned at are spaced apart from each other by the thickness of the partition portion 27 of the first and second bobbins 21 and 22. Is formed. In addition, the second core 26 is also formed in the same manner as the first core 25 so that the lengths of both end portions thereof are different. In addition, the first and second cores 25 and 26 are formed by assembling the core elements 1 and 2 having a ∩ shape and a ∪ shape in the vertical direction. Since the edge portion is formed to be bent to reduce the eddy loss, it is possible to increase the power efficiency.

The thickness of the partition portion 27 of the first and second bobbins 21 and 22 (that is, the thickness of the lower surface of the first bobbin 21 and the thickness of the upper surface of the second bobbin 22) is increased. And the separation intervals D formed in the second cores 25 and 26, respectively, are determined corresponding to the power consumption amounts W of the first and second discharge lamps 32 and 42. It varies depending on the capacity of the coils 23 and 24. In addition, the capacity of the first and second coils 23 and 24 wound around the first and second bobbins 21 and 22 depends on the thickness and the number of turns of the first and second coils 23 and 24. Is determined by. Accordingly, the first and second discharge lamps 32 may be formed by the distance D between the first and second cores 25 and 26 and the thickness and the number of turns of the first and second coils 23 and 24, respectively. The output current of 42 can be adjusted.

The first coil 23 and the second coil 24 may be wound with different thicknesses.

On the other hand, in the present embodiment, a coil is wound around the outer surfaces of the first and second bobbins 21 and 22, for example, but the outer surfaces of the first and second bobbins 21 and 22 are described. The structure which winds up two or more coils, respectively is also possible. In such a case, it is possible to control the current flowing through two or more lamps at the same time.

4 is an exemplary view showing a method of manufacturing a ballast for a multi-purpose ballast according to another embodiment of the present invention. According to another aspect of the present invention, there is provided a method for manufacturing a ballast stabilizer for forming a cylindrical first bobbin (21) having a bottom portion and a cylindrical second bobbin (22) having an upper surface portion (S10). And winding the first coil 23 to surround the outer surface of the first bobbin 21 and winding the second coil 24 to surround the outer surface of the second bobbin 22 (S12). And (S14) forming chamfered and chamfered core elements (1) (2) constituting the first core (25) and the second core (26), and the first bobbin (21). Stacking the first bobbin 21 on an upper portion of the second bobbin 22 such that a bottom surface portion and an upper surface portion of the second bobbin 22 come into contact with each other (S16); Assembling the first and second cores 25 and 26 to the first and second bobbins 21 and 22 by assembling in the vertical direction from both sides of the first and second bobbins 21 and 22, respectively. Step S18, and the first The coil 23 is connected between the first power input unit 30 and the first discharge lamp 32 of the lighting circuit of the first discharge lamp 32 and the second coil 24 is connected to the lighting circuit of the second discharge lamp 42. In step S20, a connection between the second power input unit 40 and the second discharge lamp 42 is made.

It will be described a method of manufacturing a ballast for ballast according to another embodiment of the present invention configured as described above.

First, in step S10, a cylindrical first bobbin 21 with a closed bottom surface portion and a cylindrical second bobbin 22 with a closed upper surface portion are formed.

In step S12, the first coil 23 is wound around the outer surface of the formed first bobbin 21. In addition, the second coil 24 is wound around the outer surface of the second bobbin 22.

In step S14, in order to form the 1st core 25 and the 2nd core 26, the core element 1 of a longitudinal cross section and the core element 2 of a wedge shape are formed.

Here, the method for forming the core and core elements 1 and 2 in the shape of V and V will be described in detail. Like a hexahedron, a silicon thin steel sheet cut to a certain width and length to the outside of a mold having a rectangular shape, that is, a plate body is wound by a predetermined number of times using a rotary machine and laminated. Thereafter, the wound plate is put into the container containing the adhesive and impregnated, or when the adhesive is put between the layers and the layers, the plates are bonded to each other by an adhesive to be integrated to form an elliptic core. The central part of the elliptic core in the short axis direction (horizontal direction) is cut to form core elements 1 and 2 having a cross-sectional shape in the shape of a substantially X shape and a Y shape with respect to the major axis direction (vertical direction). In addition, by cutting the length of one end shorter than the length of the other end, when the two core elements (1) (2) of the shape of the shape and the shape of ∪ are assembled into a pair, the one ends are separated by a predetermined interval (that is, the first and the second). Spaced apart by the thickness of the partition portion 27 of the bobbin 21 and 22, and the other ends may be in close contact with each other.

Then, in step S16, the first bobbin 21 is laminated on the upper part of the second bobbin 22 such that the bottom of the first bobbin 21 and the upper surface of the second bobbin 22 come into contact with each other. . In such a case, the partition part 27 is formed by the bottom part of the 1st bobbin 21 and the upper surface part of the 2nd bobbin 22, and the space | interval D is formed by the thickness of the partition part 27. As shown in FIG.

In step S18, the first and second cores 25 and 1 are formed by assembling the fin-shaped and the fin-shaped core elements 1 and 2 in the vertical direction on both sides of the stacked first and second bobbins 21 and 22. The two cores 26 are respectively bonded to the stacked first and second bobbins 21 and 22. One ends of the core elements 1 and 2 of the first and second cores 25 and 26 positioned inside the first and second bobbins 21 and 22 are spaced apart by the thickness of the partition part 27. And the other ends of the core elements 1 and 2 which are positioned outside the first and second bobbins 21 and 22 to be in close contact with each other, are connected to each other by using an adhesive tape, an adhesive band, or a clip. .

In step S20, as shown in FIG. 4, the first coil 23 is connected between the first power input unit 30 and the first discharge lamp 32 of the lighting circuit of the first discharge lamp 32 and the first discharge lamp 32. The two coils 24 are connected between the second power input unit 40 and the second discharge lamp 42 of the lighting circuit of the second discharge lamp 42.

As described above, in the present invention, the first bobbin having the bottom part and the second bobbin having the top part are formed, and the first and second bobbins are stacked so that the bottom part of the first bobbin and the top part of the second bobbin come into contact with each other. The voids can be formed in the inner space of the first and second bobbins, and a single ballast is formed by winding separate coils on the first and second bobbins, respectively, thereby eliminating electrical interference between coils, thereby improving operation performance. The manufacturing method is simple and productivity is improved. In addition, in the case of a ballast formed by winding a plurality of coils in one bobbin, it is not necessary to use the insulating sheet used between the plurality of coils in the ballast of the present invention.

For reference, an example of a multi-light lighting circuit configuration using the multi-ballast ballast according to the present invention is shown in FIG.

When the multiple ballast according to the present invention is operated to stabilize the input current of two discharge lamps, as shown in Fig. 5, a connection between two lighting circuits, that is, the first lighting circuit and the second lighting circuit, is shown. do. The first lighting circuit is formed by connecting the first power input unit 30, the first capacitor C1, the first resistor R1, the first lamp 31 and the first discharge lamp 32 in parallel to each other, The second lighting circuit is formed by connecting the second power input unit 40, the second capacitor C2, the second resistor R2, the second lamp 41, and the second discharge lamp 42 in parallel with each other.

In detail, the multi-stable ballast 10 according to the present invention in order to uniformly supply the current flowing to the first discharge lamp 32 and the second discharge lamp 42, respectively, the first power input unit 30 and the first capacitor ( Common node a with C1 and between common node b with the first light emitter 31 and the first discharge lamp 32 and with the second power input 40 and the second capacitor C2. It is connected between the node a 'and the common node b' with the second lamp 41 and the second discharge lamp 42.

The first and second light emitters 31 and 41 serve to initiate lighting of the first and second discharge lamps 32 and 42, respectively, and the first and second discharge lamps 32 and 41 are discharged. At the start of the lighting of 42, a surge voltage is supplied.

The ballast 10 is the first and second discharge lamps 32 (42) after the first and second discharge lamps 32 and 42 start lighting by the first and second lamps 31 and 41. 42) to supply a constant current.

The first and second capacitors C1 and C2 are provided to compensate for a decrease in power factor caused by magnetic flux generated by current flowing from an AC power source and stored as magnetic energy.

In addition, the first resistor R1 is connected in parallel with the first capacitor C1, and the second resistor R2 is connected in parallel with the second capacitor C2. The first resistor R1 and the second resistor R2 are provided to prevent the user from being shocked by the voltage remaining in the first and second capacitors C1 and C2, respectively.

Meanwhile, tabs (not shown) are provided in the middle portions of the first and second coils 23 and 24, respectively, so that the first and second lamps 31 and 41 are connected to the respective tabs. do. Accordingly, the first and second lighters 31 and 41 can supply stable surge voltages to the first and second discharge lamps 32 and 42, respectively.

The operation of the multi-light lighting circuit connected to the multi-ballast ballast according to the present invention formed as described above will be described.

When AC power is applied through the first power input unit 30, the applied power is one terminal of the first power input unit 30, the first coil 23 of the ballast 10, and the first light emitter 31. And the first discharge lamp 32 flows to the other terminal of the first power input unit 30.

At this time, the first light emitter 31 provides the surge voltage to the first discharge lamp 32, whereby the first discharge lamp 32 is lit to discharge. As power is applied to the first coil 23 of the multi-stable ballast 10, magnetic flux is generated in the first and second cores 25 and 26, and electrical energy is converted into magnetic energy. Control the current flowing through the control panel constantly.

In addition, when AC power is applied through the second power input unit 40, the applied power is one terminal of the second power input unit 40, the second coil 24 of the ballast 10, and the second lighting device. It passes through the 41 and the second discharge lamp 42 and flows to the other terminal of the second power input unit 40. Power is supplied to the second coil 24 connected in series between the common node of the second power input unit 40 and the second capacitor C2 and the common node of the second lamp 41 and the second discharge lamp 42. The multi-ballast ballast 10 can be applied to drive the second discharge lamp (42).

Therefore, the present invention can drive a plurality of discharge lamps using one multi-ballast ballast 10, the entire discharge lamp lighting circuit for lighting a plurality of discharge lights when the multi-ballast ballast according to the present invention is applied to this The configuration is simplified.

Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the spirit or the scope of the present invention. The disclosed embodiments are not intended to limit the invention but to illustrate the invention. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is an assembled perspective view of the ballast for multi-function according to an embodiment of the present invention.

FIG. 2 is a cross sectional view of the first and second bobbins of FIG. 1; FIG.

3 is a cross-sectional view of the multi-stabilizer of Figure 1;

Figure 4 is a flow chart showing a method for manufacturing a multi-stabilizer according to another embodiment of the present invention.

Figure 5 is an illustration of a multi-light lighting circuit is used is a multi-ballast ballast according to the present invention.

*** Explanation of symbols for main parts of drawings ***

10: ballast for multiple lamp 1,2: core element

21,22: 1st, 2nd bobbin 23,24: 1st, 2nd coil

25, 26: 1st, 2nd core 27: partition part

C1, C2: first and second capacitors R1, R2: first and second resistors

30, 40: First and second power input unit 31, 41: First and second lighting device

32, 42: 1st, 2nd discharge lamp

Claims (5)

A cylindrical first bobbin having a bottom portion for insulating function; A first coil wound around the outer surface of the first bobbin to control a current flowing through the first discharge lamp; A second bobbin formed in a tubular shape having an upper surface portion for insulating function and disposed so that the upper surface portion is in contact with the bottom portion of the first bobbin; A second coil wound around the outer surface of the second bobbin to control a current flowing through the second discharge lamp; A pair of two core elements having a longitudinal cross section having a ∩ and ∪ shape are coupled to each other in a vertical direction at both sides of the first and second bobbins, so that the ends positioned outside the first and second bobbins are connected to each other. End portions positioned inside the first and second bobbins are spaced apart from each other by an interval between a thickness of a bottom portion of the first bobbin and a thickness of an upper surface portion of the second bobbin, and an upper surface of the bottom portion of the first bobbin and the top surface of the second bobbin. A first core and a second core insulated by the part and forming a magnetic flux path, The power consumption of the first discharge lamp is determined by the thickness and the number of turns of the first coil and the interval formed in the first and second cores, and the thickness and the number of turns of the second coil and the number of the first and second cores are determined. The power consumption of the second discharge lamp is determined by the interval formed in the The thickness and the number of windings of the first coil and the thickness and the number of windings of the second coil are formed differently to control the first discharge lamp and the second discharge lamp having a different power consumption amount. delete Forming a cylindrical first bobbin having a bottom portion for the insulating function and a cylindrical second bobbin having an upper surface portion for the insulating function; Winding the first coil to surround the outer side of the first bobbin and winding the second coil to the outer side of the second bobbin to differ from the thickness and number of turns of the first coil; Forming ∩- and ∪-shaped core elements constituting the first and second cores; Stacking the first bobbin on the top of the second bobbin such that the bottom of the first bobbin and the top of the second bobbin contact each other; The first and second cores are assembled in the vertical direction on both sides of the stacked first and second bobbins, respectively, to form the first and second core elements constituting the first and second cores. Fastening to the first and second bobbins; And Connecting the first coil between the first power input of the lighting circuit of the first discharge lamp and the first discharge lamp and connecting the second coil between the second power input of the lighting circuit of the second discharge lamp and the second discharge lamp. Done, Fastening the first and second core to the laminated first and second bobbin, One end portions of the first and second cores positioned inside the first and second bobbins are in contact with the bottom portion of the first bobbin and the top portion of the second bobbin so as to contact the bottom portion and the first portion of the first bobbin. 2 is insulated by the upper surface of the bobbin, and the other ends of the first and second cores located outside the first and second bobbins are connected to each other. delete The method according to claim 3, The power consumption of the first discharge lamp is determined by the thickness and the number of turns of the first coil and the interval formed in the first and second cores, and the thickness and the number of turns of the second coil and the number of the first and second cores are determined. The power consumption of the second discharge lamp is determined by the interval formed in the multi-ballast ballast manufacturing method.

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