WO2014017798A1

WO2014017798A1 - Discharge lamp

Info

Publication number: WO2014017798A1
Application number: PCT/KR2013/006563
Authority: WO
Inventors: 강성진; 강성석
Original assignee: Kang Seong Jin; Kang Seong Seok
Priority date: 2012-07-24
Filing date: 2013-07-23
Publication date: 2014-01-30
Also published as: KR101534324B1; KR20140014446A

Abstract

The present invention provides a discharge lamp including: first and second support members disposed in first and second housings of a stabilizer housing in such a manner as to oppose each other in the coupling directions of the first and second housings and in such a manner that wire insertion grooves are formed to oppose each other at the respective tips thereof, wherein a stabilizer side wire is inserted into one of the opposing wire insertion grooves and a discharge tube side wire is inserted into the other; and a wedge-type connection terminal, both sides of which are respectively inserted into the opposing wire insertion grooves so as to be in contact with the stabilizer side wire and the discharge tube side wire. According to the present invention, an electrical connection between a stabilizer printed circuit board and a discharge tube can be reliably made at low cost.

Description

Discharge lamp

The present invention relates to a discharge lamp that can easily make an electrical connection between the ballast printed circuit board and the discharge tube.

Discharge lamps are widely used in various lighting equipment. In general, the discharge lamp includes a discharge tube made of a light transmitting material and a ballast for driving, and the discharge tube is filled with a discharge gas for causing discharge. Accordingly, when power from the outside is supplied to the discharge tube through the ballast, discharge is generated inside the discharge tube, whereby light is emitted to the outside of the discharge tube.

At present, various types of discharge lamps have been proposed, and in particular, bulb type discharge lamps inserted into a socket for a bulb are widely used.

The bulb discharge lamp has a ballast housing (see 20 in FIG. 1) containing a ballast printed circuit board (see 40 in FIG. 1) and a base for a bulb (see 30 in FIG. 1) inserted into the bulb socket. . The ballast housing is mechanically coupled to the discharge vessel (see reference numeral 10 in FIG. 1). In the ballast printed circuit board and the discharge tube, wires are drawn out to electrically connect each other. The drawn ballast side wire (see reference numeral 41 in FIG. 1) and the discharge tube side wire (see reference numeral 11 in FIG. 1) are provided in the ballast housing. Is connected from the inside. At this time, a method of twisting both wires and joining them into one may be used to connect both wires (stabilizer side and discharge tube side). Alternatively, a method of putting a wrapping pin on the ballast printed circuit board and winding both wires on the wrapping pin may be used.

However, the electrical connection structure of the ballast printed circuit board and the discharge tube has a problem in that manufacturing efficiency is low, and a lot of processes are required for the treatment and repair of defective products generated during the manufacturing process.

An embodiment of the present invention is to provide a discharge lamp having an electrical connection structure of the ballast printed circuit board and the discharge tube advantageous in terms of manufacturing.

The problem to be solved by the present invention is not limited to the above problem, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to an embodiment of the invention, the ballast housing having a first housing and a second housing coupled to each other; A ballast printed circuit board accommodated in the ballast housing, supplied with power from the outside, and having a ballast circuit element; A ballast side wire drawn out from the ballast printed circuit board; A discharge tube side wire drawn out from the discharge tube having an electrode into the ballast housing; And a wire connecting means for electrically connecting the ballast side wire and the discharge tube side wire inside the ballast housing, wherein the wire connecting means is connected to the first housing and the second housing by the first housing and the second housing. Are respectively provided to face each other in a coupling direction of the wires, and wire insertion grooves are formed at opposite ends thereof, respectively, and the ballast side wire is inserted into one of the wire insertion grooves facing each other, and the discharge tube side wire is inserted into the other. A first support member and a second support member; A discharge lamp including a wedge-shaped connecting terminal which is inserted into each of the wire insertion grooves facing each other and is in contact with the ballast side wire and the discharge tube side wire is provided.

At the inlet of the wire insertion grooves facing each other, a wire setting groove is provided, in which the ballast side wire and the discharge tube side wire are respectively crossed, and the ballast side wire and the discharge tube side wire respectively placed in the wire setting groove are inserted into the wire. As the wedge-shaped connecting terminal is inserted into the groove, it may be inserted while being bent in the wire insertion groove.

At both ends of the wedge-shaped connecting terminal, a positioning groove into which the ballast side wire and the discharge tube side wire are inserted may be respectively provided.

The wire setting groove and the wire insertion groove may have a structure in which the inlet is extended.

The wedge-type connecting terminal may have a structure capable of elastic deformation so as to elastically close contact with the wire insertion groove facing each other.

The wedge-shaped connecting terminal may be formed in a plate shape and both sides may be bent to secure a gripping area, respectively. Alternatively, the wedge-shaped connecting terminal may have a cross section of a corrugated structure in order to secure a gripping area while being plate-shaped.

According to an embodiment of the present invention, the discharge tube is formed to have a structure in which a ballast arrangement space is provided in the center and is provided with an electrode for receiving power; A ballast housing inserted into the ballast arrangement space and having a first housing and a second housing coupled to each other in an insertion direction with respect to the ballast arrangement space; A ballast printed circuit board disposed inside the ballast housing, receiving power from the outside, and having a ballast circuit element; A discharge tube holder provided on an outer circumferential side of the ballast housing and supporting a discharge tube by accommodating a portion provided with an electrode of the discharge tube, and having a connection space therein; A ballast side wire drawn out of the ballast printed circuit board and drawn into the connection space from inside the ballast housing; A discharge tube side wire drawn out from the discharge tube to the connection space; And wire connecting means for electrically connecting the ballast side wire and the discharge tube side wire in the connection space, wherein the discharge tube holder is provided in one of the first housing and the second housing, A holder body having an opening in communication therewith; A holder cover provided on the other of the first housing and the second housing, the holder cover coupled to the holder body to shield the opening, and the opening is coupled to the holder cover when the first housing and the second housing are coupled to each other. The wire connecting means is provided so as to face each other in the coupling direction of the holder body and the holder cover to the holder main body and the holder cover, and wire insertion grooves are formed to face each other at the front end, respectively. A first support member and a second support member in which the ballast side wire is inserted into one of the opposing wire insertion grooves and the discharge tube side wire is inserted into the other one; A discharge lamp including a wedge-shaped connecting terminal which is inserted into each of the wire insertion grooves facing each other and is in contact with the ballast side wire and the discharge tube side wire is provided.

Here, the ballast side wire is drawn out of the ballast housing through a coupling gap between the first housing and the second housing, and then drawn into the connection space through a coupling gap between the holder body and the holder cover. Can be.

According to an embodiment of the invention, the ballast housing; A ballast printed circuit board disposed inside the ballast housing, receiving power from the outside, and having a ballast circuit element; A discharge tube side wire drawn out from the discharge tube having an electrode into the ballast housing; And a wire connecting means for electrically connecting the discharge tube side wire to the printed circuit board, wherein the wire connection means is provided inside the ballast housing and has a wire insertion groove into which the discharge tube side wire is inserted. ; A discharge lamp is mounted on the ballast printed circuit board and includes a wedge-shaped connecting terminal inserted into the wire insertion groove and in contact with the wire on the discharge tube side.

Here, the wedge-shaped connection terminal is penetrated through the ballast printed circuit board, the ballast printed circuit board is provided with insertion holes respectively on both sides of the penetrated wedge-shaped connection terminal, the support member is the wedge-shaped connection It may have a U-shaped structure such that both terminals are respectively inserted into the insertion holes on both sides while the terminal is inserted into the center portion.

According to an embodiment of the invention, the ballast housing; A ballast printed circuit board accommodated in the ballast housing, supplied with power from the outside, and having a ballast circuit element; A ballast side wire drawn out from the ballast printed circuit board; A discharge tube side wire drawn out from the discharge tube having an electrode into the ballast housing; And a wire connecting means for electrically connecting the ballast side wire and the discharge tube side wire inside the ballast housing, wherein the wire connection means is provided in the ballast housing, and the ballast side wire and the discharge tube side wire are inserted together. A support member having a wire insertion groove; The discharge lamp includes a wedge member inserted into the wire insertion groove into which the ballast side wire and the discharge tube side wire are inserted together to maintain contact between the ballast side wire and the discharge tube side wire.

As such, in the discharge lamp in which the ballast side wire and the discharge tube side wire are inserted together in the wire insertion groove, the wedge member may be a wedge type connection terminal. In addition, the ballast housing is composed of a first housing and a second housing coupled to each other, one of the first housing and the second housing is provided with the support member and the other is provided with the wedge member, the support The member and the wedge member may be disposed to face each other in the coupling direction of the first housing and the second housing, and the wire insertion groove may be provided at the tip of the support member facing the wedge member.

Means for solving the main problems of the present invention as described above will be more specific and clear through the embodiments (details for carrying out the invention) or drawings described below, and furthermore, to solve the main problems of the present invention as described above. In addition to the means, various means for solving the problems will be further presented below.

Embodiments of the present invention can make the electrical connection of the ballast printed circuit board and the discharge tube easier, more reliably, and more quickly by lower cost. In addition, when a failure occurs, the processing and repair can be performed simply.

1 is a front view showing a discharge lamp according to a first embodiment of the present invention.

2 and 3 are cross-sectional views and exploded perspective views of the portion A of FIG.

4 is a cross-sectional view illustrating another example of the supporting member illustrated in FIGS. 2 and 3.

5 is a cross-sectional view taken along the line B-B in FIG.

6 to 12 are perspective views illustrating various examples of the connection terminals illustrated in FIGS. 2 and 3.

13 is a sectional view showing the main part of the discharge lamp according to the second embodiment of the present invention.

14 is a configuration diagram showing a main part of a discharge lamp according to a third embodiment of the present invention.

15 and 16 are schematic and perspective views showing main parts of a discharge lamp according to a fourth embodiment of the present invention.

17 is a cross-sectional view illustrating a discharge lamp according to a fifth embodiment of the present invention.

18 is an enlarged view of a portion C of FIG. 17.

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

For reference, the size, line thickness, etc. of the components shown in the drawings referred to for description of the present invention may be somewhat exaggerated for convenience of understanding. In addition, since terms used in the description of the present invention are defined in consideration of functions in the present invention, they may vary according to a user, an operator's intention, custom, and the like. Accordingly, the definition of terms should be made based on the contents throughout the specification.

1 is a front view showing a discharge lamp according to a first embodiment of the present invention, as shown in Figure 1, the discharge lamp according to the first embodiment of the present invention is a discharge tube 10 having a U-shaped structure, Ballast housing 20 of the insulating material, the bulb base 30 is inserted into the bulb socket and the ballast printed circuit board 40 accommodated in the ballast housing 20. As the bulb base 30, a spiral base generally referred to as an Edison base, a bi-pin cap protruding from two electrode pins, and the like may be applied.

The discharge tube 10 is made of a light transmitting material. The discharge tube 10 is provided with two pairs of electrodes 12 for receiving power. The portion in which the electrodes 12 are mounted in the discharge tube 10 is sealed to maintain hermeticity.

The ballast housing 20 includes a first housing 21 and a second housing 22 coupled with the first housing 21. Referring to FIG. 1, the lower first housing 21 has a structure in which the upper side is open, and the upper second housing 22 has a structure in which the lower side is opened, and thus the first housing 21 and the first housing 21 have a structure. The second housing 22 is coupled to the upper side and the lower side in the vertical direction. When the first housing 21 and the second housing 22 are coupled to each other, the ballast printed circuit board 40 is disposed inside the ballast housing 20, and a space separated from the outside is provided.

1, the discharge tube 10 is coupled to the lower side of the first housing 21, and the bulb base 30 is coupled to the upper side of the second housing 22, respectively. Preferably, in the discharge tube 10, the electrode mounting side 14 is accommodated in the first housing 21.

The ballast printed circuit board 40 accommodated in the ballast housing 20 includes ballast circuit elements for performing ballast functions. The ballast printed circuit board 40 receives power from the bulb base 30.

The power received from the ballast base 30 by the ballast printed circuit board 40 is two pairs (four strands) of the ballast-side wire 41 drawn from the ballast printed circuit board 40 and the electrode 12 of the discharge tube 10. To the electrode 12 of the discharge tube 10 by wire connecting means J1 for electrically connecting the two pairs of discharge tube side wires 11 drawn out from the wires and the

wires

11 and 41 on both sides (stabilizer side and discharge tube side). Supplied.

Electrical connection between the ballast printed circuit board 40 and the discharge tube 10 by both

wires

11 and 41 and the wire connecting means J1 is made in the inner space of the ballast housing 20. Of course, each ballast side wire 41 of a pair and another pair is connected with each discharge tube side wire 11 of a pair and another pair.

2 and 3 show a cross-sectional view and an exploded perspective view of the portion A of FIG. 1, showing the wire connecting means J1. 2 and 3, the wire connecting means J1 includes a first supporting member 60, a second supporting member 70, and a wedge-shaped connecting terminal 90.

The first support member 60 is provided inside the first housing 21, and the second support member 70 is provided inside the second housing 22. In more detail, the first support member 60 and the second support member 70 may be integrally formed on the inner walls of the first housing 21 and the second housing 22, respectively. The first support member 60 and the second support member 70 are disposed to face each other in a coupling direction (up and down direction when referring to FIG. 1) of the first housing 21 and the second housing 22. do.

Wire insertion grooves

61 and 71 are respectively provided at front ends of the first support member 60 and the second support member 70 facing each other, and the wire insertion grooves 61 and the first support member 60 of the first support member 60 are formed. The wire insertion groove 71 of the two support members 70 is disposed such that the inlets face each other. One wire (for example, one wire of the discharge tube side) of the two

wires

11 and 41 to be connected is inserted into the wire insertion groove 61 of the first support member 60, and the second support member 70 is inserted into the wire insertion groove 61. In the wire insertion groove 71, one strand of the other wire (for example, one strand of the ballast side wire) of the two

wires

11 and 41 to be connected is inserted.

The connection terminal 90 is a conductive metal plate having an elongated rectangular structure, and both ends of the wire insertion groove 61 of the first support member 60 and the wire insertion groove 71 of the second support member 70 are both longitudinally. The two

wires

11 and 41 which are respectively inserted and connected are in contact with each other. Preferably, the connection terminal 90 has a size that is in close contact with both

wires

11 and 41 in the longitudinal direction when fitted into the wire insertion grooves (61, 71) so as to be lodged in the wire insertion grooves (61, 71). It is composed.

On the other hand, in the case of the wire connecting means (J1) four may be provided to connect the ballast side wire 41 and the discharge tube side wire (11) of four strands each other. Alternatively, two first support members 60 and two second support members 70 may be provided, and the

wire insertion grooves

61 and 71 may be provided on the first support member 60 and the second support member 70, respectively. It is provided in pieces, four connection terminals 90 may be provided.

At each inlet of the

wire insertion grooves

61 and 71,

wire setting grooves

63 and 73 in which both

wires

11 and 41 cross each other are provided. The

wire setting grooves

63 and 73 intersect with the

wire insertion grooves

61 and 71 into which the connection terminal 90 having a plate-like structure is fitted. The depth of the

wire setting grooves

63 and 73 is preferably formed to be lower than that of the

wire insertion grooves

61 and 71.

According to such a wire connecting means J1, the discharge tube side wire 11 is placed in the wire setting groove 63 of the first support member 60 and connected to the wire insertion groove 61 of the first support member 60. After the one end of the terminal 90 is inserted in the longitudinal direction, the ballast side wire 41 is positioned in the wire setting groove 73 of the second support member 70 and the wire insertion groove 71 of the second support member 70 is positioned. When the first housing 21 and the second housing 22 are coupled to each other so that the other side of the connection terminal 90 is inserted in the lengthwise direction, both

wires

11 and 41 to be connected are connected to the ballast printed circuit board 40. And the discharge tube 10 are electrically connected. At this time, both

wires

11 and 41 placed in the

wire setting grooves

63 and 73 are naturally bent while the connection terminal 90 is fitted into the

wire insertion grooves

61 and 71, and the wire insertion grooves 61 and The connection terminal 90 inserted and inserted into 71 is in line contact with both

wires

11 and 41. The contact structure of the connection terminal 90 and the

wires

11 and 41 on both sides lowers the contact resistance to suppress the temperature rise of the contact portion and ensure smooth energization.

For reference, the ballast printed circuit board 40 and the discharge tube 10 include a setting order of both

wires

11 and 41 to the

wire setting grooves

61 and 73 and a connection order of the connection terminal 90 to the

wire insertion grooves

61 and 71. The electrical connection process of) may vary depending on the implementation conditions.

As described above, the first embodiment is a one-touch method in which both

wires

11 and 41 are placed in the

wire setting grooves

63 and 73 and the connection terminal 90 is inserted into the

wire insertion grooves

61 and 71. Since both

wires

11 and 41 are connected, and the first housing 21 and the second housing 22 are coupled to each other, the connection work for both

wires

11 and 41 is completed, so that the ballast printed circuit board 40 The electrical connection of the discharge tube 10 can be easily and reliably achieved at low cost, and can be simply processed or repaired when a failure occurs.

4 is a cross-sectional view illustrating another example of the first and

second support members

60 and 70 shown in FIGS. 2 and 3, and FIG. 5 is a cross-sectional view taken along the line B-B of FIG. 4. Since the first support member 60 and the second support member 70 have the same configuration, only the first support member 60A of another example is shown in FIGS. 4 and 5 for convenience. 4 and 5, only the first supporting member 60A of another example will be described.

Another example of the first supporting member 60A has a structure in which the inlet of the wire insertion groove 61 and the inlet of the wire setting groove 63 are gradually expanded by the

inclined surfaces

62 and 64, respectively. The expansion structure of the inlet guides the direction so that the connection terminal 90 can be inserted into the wire insertion groove 61, and the discharge tube side wire 11 (or the ballast side wire) is precisely inserted into the wire setting groove 63. Induce to be placed.

6 to 12 are perspective views illustrating various other examples of the connection terminal 90 shown in FIGS. 2 and 3. Except for Figs. 11 and 12, the

connection terminals

90A, 90B, 90C, and 90F of the examples shown in Figs. 6 to 10 are based on a plate-like structure similarly to the connection terminals 90 shown in Figs. do.

In another example of the connection terminal 90A shown in FIG. 6, positioning grooves 91 are provided at both ends in the longitudinal direction, respectively, and the positioning grooves 91 are connected to the

wire insertion grooves

61 and 71, respectively. When the 90A is fitted, both

wires

11 and 41 placed in the

wire setting grooves

63 and 73 are formed to be inserted, respectively. According to the positioning groove 91, when the connecting terminal 90A is inserted to insert the both

wires

11 and 41 into the

wire insertion grooves

61 and 71, both ends of the connecting terminal 90A in the longitudinal direction are contacted. It is possible to prevent the

wires

11 and 41 from slipping along the ends of the connecting terminal 90A in the longitudinal direction or from being extremely separated.

The connection terminal 90B of still another example shown in FIG. 7 is provided with an integral bent portion 92 that is bent at a predetermined angle on both sides in the width direction. According to the bent portion 92, it is possible to increase the thickness of the connection terminal 90B, which is rather thin in the plate-like structure, and thus can be easily gripped by hand during manual work.

The connection terminal 90F of still another example shown in FIG. 8 is also formed to have a cross section of a wave shape (wavy) structure so that it can be easily gripped by hand during manual operation. Although not shown in FIG. 8, the connection terminal 90F of FIG. 8 may also have a positioning groove 91.

The connection terminal 90C of still another example shown in FIG. 9 has a structure of a spring that is elastically deformable so as to be elastically in close contact with the

wire insertion grooves

61 and 71 when the connection terminal 90C is inserted into the

wire insertion grooves

61 and 71. To this end, the connection terminal 90C may have a plate spring structure by providing an integral elastic portion 93 that is bent forward or backward on both sides in the longitudinal direction, respectively.

The example shown in FIG. 10 illustrates that the plurality of connection terminals 90A can be manufactured in a structure in which the plurality of connection terminals 90A are detachably joined by manual labor. As shown in FIG. 10, the plurality of connection terminals 90A may be connected to each other such that both ends of the longitudinal direction may be manually cut by the cutting part 94. In the state where the outermost connecting terminal 90A is inserted into one

wire insertion groove

61 or 71, the inserted connecting terminal 90A and the other adjacent connecting terminal 90A are referred to the cut-off portion therebetween. When bent, the inserted connecting terminal 90A and the adjacent connecting terminal 90A are separated while being cut. Unlike shown, the cut portion 94 may be a cutting line having a U-shaped structure.

The connection terminal 90D of still another example shown in FIG. 11 has a rod-like structure, not a plate-like structure. That is, it is manufactured to have an elastic deformation structure that is elastically in close contact with the wire insertion groove (61, 71) using a bar.

Another example of the connection terminal 90G shown in FIG. 12 has an elongated straight rod shape. It may be simply formed in the shape of a circular rod as shown in Fig. 12A, or may be a hollow cylindrical shape as shown in Fig. 12B, and single or plural ring-shaped protrusions are formed in the circumferential direction on the outer circumferential surface thereof. It may have a wrinkle structure as a whole. At this time, instead of the plurality of ring-shaped protrusions, spiral protrusions may be applied to give a wrinkled structure as a whole.

In the case where the connection terminal 90G of FIG. 12 is applied, the

wire insertion grooves

61 and 71 may be formed to have a circular structure corresponding to the connection terminal 90G of FIG. 12.

13 is a sectional view showing the main part of the discharge lamp according to the second embodiment of the present invention. As shown in FIG. 13, the discharge lamp according to the second embodiment of the present invention has a wire insertion of the first support member 60 with respect to all other configurations and functions being the same as compared with the first embodiment. Both

wires

11 and 41 are inserted together into one of the groove insertion grooves 71 and the wire insertion groove 71 of the second supporting member 70, and one wire insertion groove having both

wires

11 and 41 inserted together. It is exemplified that both

wires

11 and 41 can be connected by inserting a wedge-type connecting terminal 90 into it.

In this case, when the

wires

11 and 41 are inserted into the wire insertion grooves in artificial contact or natural contact with each other, the wedge-shaped connecting terminal 90 maintains contact between the

wires

11 and 41. Play a role. Thus, although the wedge type connecting terminal 90 may use a general wedge member, it is preferable to use a terminal member so that the connection is continuously maintained even when the contact of both

wires

11 and 41 is released.

In the second embodiment, since both

wires

11 and 41 are inserted together in one wire insertion groove, one of the first support member 60 and the second support member 70 may be deleted. For example, when the second supporting member 70 is deleted, the wedge-type connecting terminal 90 is formed inside the second housing (see reference numeral 22 of FIG. 1) instead of the removed second supporting member 70. ) Can be mounted or formed directly. That is, the wedge type connecting terminal 90 may be provided in the ballast housing (reference numeral 20 of FIG. 1).

14 is a configuration diagram showing the main part of the discharge lamp according to the third embodiment of the present invention. As shown in FIG. 14, the discharge lamp according to the third embodiment of the present invention has the ballast side of both

wires

11 and 41 with respect to the same configuration and operation as those of the first embodiment. Only the point which is not provided with the wire 41 and is comprised so that the discharge tube side wire 11 can be directly connected to the ballast printed circuit board 40 by one-touch system is different. Hereinafter, the wire connecting means J2 will be described.

The wire connecting means J2 of the third embodiment includes a support member 80 provided inside the ballast housing (see reference numeral 20 in FIG. 1) and having a wire insertion groove into which the discharge tube side wire 11 is inserted, and ballast printing. It is mounted to the circuit board 40 and is inserted into the wire insertion groove of the support member 80 includes a wedge-type connecting terminal (90E) in contact with the discharge tube side wire (11).

The support member 80 is different from the

support members

60, 60A, and 70 of the first embodiment because only the points arranged to be able to be coupled with the connection terminal 90E mounted on the ballast printed circuit board 40 are different. Detailed description will be omitted. The connection terminal 90E is electrically connected to the electrode pattern printed on the ballast printed circuit board 40 by solder paste or the like.

15 and 16 are schematic and perspective views showing main parts of the discharge lamp according to the fourth embodiment of the present invention. As shown in FIGS. 15 and 16, the discharge according to the fourth embodiment of the present invention. The lamp is electrically connected to the ballast printed circuit board 40 in a state where the connection terminal 90E is penetrated through the ballast printed circuit board 40 in comparison with the third embodiment, in which all other configurations are the same. The ballast printed circuit board 40 has insertion holes 42 respectively provided at both sides of the penetrated connection terminal 90E, and the support member 80A is fitted with the connection terminal 90E at the center thereof. Only the point which has a U-shaped structure so that both sides of the center part may be fitted in the both insertion holes 42 of 40 is different.

17 is a cross-sectional view illustrating a discharge lamp according to a fifth embodiment of the present invention, and FIG. 18 is an enlarged view of a portion C of FIG. 17. 17 and 18, reference numeral 100 denotes a discharge tube made of a light transmissive material, and reference numeral 200 denotes a ballast housing made of an insulating material.

As shown in FIG. 17, the discharge tube 100 is wound along the longitudinal direction (Z-axis direction) of the discharge lamp so as to have a spiral structure as a whole, and a ballast arrangement in which the ballast housing 200 may be inserted in the center is inserted. The space 102 is provided. Thus, in the fifth embodiment, the overall length is approximately determined by the Z-axis size of the discharge tube 100 and the Z-axis size of the bulb base 300 coupled to the upper end of the ballast housing 200 based on FIG. 17. As shown in FIG. 1, the bulb base 30, the ballast housing 20, and the discharge tube 10 may be manufactured to have a small size as compared with the discharge lamps sequentially coupled in a line.

The discharge tube 100 is provided with two pairs of electrodes 120 for receiving power. The portion in which the electrodes 120 are mounted in the discharge tube 100 may be a sealing process for maintaining airtightness. The electrode 120 is disposed on the uppermost side of the discharge tube 100 with reference to FIG. 17. The pair of electrodes and the pair of electrodes 120 disposed as described above may face each other with the ballast arrangement space 102 interposed therebetween. .

The ballast housing 200 inserted into the ballast arrangement space 102 is formed to be elongated in the Z-axis direction. In the ballast housing 200, a ballast printed circuit board 400 for receiving power from the light bulb base 300 and supplied to the electrode 120 is received in the Z-axis direction. At the outer circumference of the ballast housing 200, the electrode mounting side 140 of the discharge tube 100 is supported, and at the same time, the ballast side wire 410 and the electrodes 120 drawn from the ballast printed circuit board 400 are electrically connected to each other. A discharge tube holder 500 is provided that provides a separate isolated connection space 502 for connection. The connection space 502 thermally isolates the electrode 120 and the ballast printed circuit board 400 to prevent the ballast circuit elements on the ballast printed circuit board 400 from being damaged by heat from the electrode 120 side. It is for.

The ballast housing 200 includes a first housing 210 located in the ballast placement space 102 and a second housing 220 positioned to partially expose the ballast from the ballast placement space 102 based on FIG. 17. Referring to FIG. 17, the first housing 210 has an open top side. In addition, the second housing 220 has a structure in which the base 300 for the bulb is coupled to the upper end and the lower side thereof is open. The first housing 210 and the second housing 220 are coupled to each other at the upper side and the lower side, so that when the first housing 210 and the second housing 220 are coupled to each other, the ballast is provided in the ballast housing 200. A separate isolation space is provided to accommodate the printed circuit board 400. Since the first housing 210 has a longer Z-axis length than the second housing 220, the accommodating space of the ballast printed circuit board 400 may be mainly formed by the first housing 210.

As shown in FIG. 17, an insertion part 222 fitted to the other side of the first housing 210 and the lower end of the second housing 220 is partially or entirely provided along the circumferential direction of the first housing 210. ) And the second housing 220 are coupled to each other in a fitting manner, the upper side of the first housing 210 and the lower side of the second housing 220 overlap.

The ballast-side wire 410 is drawn out from the inside of the ballast housing 200 to the outside through a coupling gap G1 formed at the coupling portion of the first housing 210 and the second housing 220 to the outside in the connection space 502. It is connected with the discharge tube side wire 110 drawn out from the electrode 120, respectively. The ballast side wire 410 is pressed into an overlapping portion of the first housing 210 and the second housing 220. The ballast side wire 410 and the discharge tube side wire 110 are connected by the wire connecting means J3 in the connection space 502.

The discharge tube holder 500, which serves as a means for forming the connection space 502, is provided with a discharge tube support space 504 and a connection space 502 that accommodate the electrode mounting side 140 of the discharge tube 100 therein. 17 and 18, the holder main body 510 having an open top structure, and a shielding cover 520 coupled to an upper side of the holder main body 510 to cover the open upper side of the holder main body 510. .

Here, the holder body 510 is configured such that the open upper side communicates with the discharge tube support space 504, and the discharge tube support space 504 communicates with the connection space 502. The electrode mounting side 140 may be penetrated through the holder body 510 to be accommodated in the discharge tube support space 504, and a portion through which the electrode mounting side 140 penetrates from the holder body 510 may be sealed.

The ballast-side wire 410 drawn out from the ballast housing 300 is introduced into the connection space 502 through a coupling gap G2 formed at the coupling portion of the holder body 510 and the shielding cover 520.

The holder body 510 and the shielding cover 520 are disposed to sandwich the withdrawal position P of the ballast side wire 410. The holder body 510 is spaced apart from the first housing 210 in the X axis direction. The shielding cover 520 is integrated with the second housing 220. The shielding cover 520 has a cover portion covering the open upper side of the holder body 510 and a connection portion connecting the cover portion and the second housing 220. Wire protection cover for protecting the first housing 210 or the holder body 510 by covering the ballast side wire 410 with the connection portion of the shielding cover 520 between the first housing 210 and the holder body 510 512 is provided.

In some embodiments, the holder body 510 may be integrated with the first housing 210, and the shielding cover 520 may be detachably coupled to the second housing 220. The power line protection cover 512 may be integrated with the first housing 210 or the holder body 510.

The wire connecting means J3 includes a first supporting member 600, a second supporting member 700, and a wedge type connecting terminal 900. The first support member 600 is provided in the holder body 510, and the second support member 700 is provided in the cover portion of the shielding cover 520. The first support member 600 and the second support member 700 are disposed to face each other in the coupling direction of the holder body 510 and the shielding cover 520.

Wire inserting grooves

610 and 710 are provided at opposite ends of the first support member 600 and the second support member 700, respectively.

The first supporting member 600, the second supporting member 700, and the connecting terminal 900 of the wire connecting means J3 are the first supporting member 60 and the second supporting member 70 of the first embodiment. In addition, compared with the connection terminal 90, since only the positions provided are different, and all other configurations and effects are the same, a detailed description thereof will be omitted.

For reference, the wire connecting means J3 may be configured to be connected by inserting the ballast side wire 410 and the discharge tube side wire 110 together in one wire insertion groove by applying the configuration of the second embodiment. That is, the wire connection structure of the second embodiment may be applied.

In the fifth embodiment, when power is supplied to the electrode 120 of the discharge tube 100 through the ballast printed circuit board 400, the discharge is started and maintained.

In the fifth embodiment, high temperature heat is generated at two pairs of electrodes 120 in operation. Since the space inside the ballast housing 200 (accommodating space of the ballast printed circuit board 400) is spatially separated from the connection space 502, the heat from the electrode 120 side of the discharge tube 100 is Rather than being transferred to the ballast printed circuit board 400 accommodated in the ballast housing 200, it is mainly discharged to the periphery of the discharge tube holder 500.

In addition, the ballast-side wire 410 is drawn out through the coupling gap (G1) of the first housing 210 and the second housing 220, the coupling gap (G2) of the holder body 510 and the shielding cover 520. Leading through the connecting space 502, the electrode 120 is connected to the through space 502, and due to the overlapping portion of the first housing 210 and the second housing 220 by the insertion portion 222 to pass through the elongated withdrawal path In addition, since the drawing path naturally bends at the time of drawing, the ballast-side wire 410 is drawn between the inner space of the ballast housing 200 and the connection space 502, and the path of the ballast housing 200 Since there is no special communication path between the inner space and the connection space 502, heat transfer from the connection space 502 to the ballast printed circuit board 400 side is more effectively blocked.

Referring to FIG. 17, the heat of high temperature emitted to the periphery of the discharge tube holder 500 is moved toward the bulb base 300 which is naturally upward due to the temperature difference with the atmosphere. Since the discharge tube holder 500 is disposed in the X-axis direction from the ballast housing 200, heat emitted from the connection space 502 is mainly raised as it is rather than transferred to the ballast printed circuit board 400. In addition, as the discharge tube holder 500 is spaced apart from the ballast housing 200 in the X-axis direction, a heat insulating space 506 is formed between the ballast housing 200 and the discharge tube holder 500 by an air layer. Heat transfer from 502 to the ballast printed circuit board 400 side is further suppressed.

The ballast printed circuit board 400 includes circuit elements for performing a function as a ballast. In order to more effectively prevent various damages of the ballast circuit elements due to heat, those vulnerable to heat among the ballast circuit elements, for example, an electrolytic capacitor, a semiconductor element, and the like are disposed farthest from the electrode 120 side. At this time, since the connection space 502 accommodating the electrode 120 is disposed to be relatively closer to the bulb base 300 side, the furthest point from the electrode 120 side, the ballast printed circuit based on FIG. It may be the lowest side of the substrate 400. The semiconductor device may be a transistor, a field effect transistor, a control IC, or the like. According to this, the life expectancy of the ballast can be further extended by more effectively preventing the temperature rise and degradation of the ballast circuit elements, which are relatively heat-sensitive.

On the other hand, among the ballast circuit elements, those which are relatively less sensitive to temperature (relatively excellent in heat resistance), for example, choke transformer, resistor, ceramic capacitor, positive temperature coefficient (PTC), etc. It is disposed close to the electrode 120 or the bulb base 300 that is the uppermost side of the circuit board 400.

In the case of an electrolytic capacitor whose properties are maintained by an electrolyte sealed in an aluminum case, it is reported that the service life is halved when the temperature rises by 10 ° C. Semiconductor devices such as transistors, field effect transistors, and control ICs, which are used as switching elements, tend to malfunction or break down when the temperature is over a certain temperature. In particular, instantaneous blackouts or sudden changes in voltage at high temperatures may cause electrolytic capacitors. Or it may cause a momentary malfunction of the switching element leading to breakage.

According to the experiment by the applicant, when the ambient temperature is 25 ℃, in the conventional discharge lamp, after operating for 1 hour, the temperature of the ballast was measured, the temperature of the lowest portion is 60 ℃, the temperature of the electrode side Respectively exceeded 80 ° C. The temperature of the ballast was measured in the same condition as the skylight-embedded luminaire. As a result, the temperature of the lowest part was 85 ° C to 90 ° C, the transistor temperature was 120 ° C to 120 ° C, and the temperature of the electrolytic capacitor was 100 ° C. It exceeded, and the temperature of the electrode side exceeded 125 degreeC.

In the fifth embodiment, since the accommodating space of the ballast printed circuit board 400 is thermally effectively isolated from the connection space 502, when the ambient temperature is 25 ° C, the lowest portion (as seen in Fig. 17). At this time, the temperature of the lowest portion of the ballast printed circuit board 400) was maintained at 40 ℃ ~ 50 ℃, the temperature of the highest portion (as seen in Figure 17, the top portion of the ballast printed circuit board 400) is 60 It did not exceed ℃. In addition, even if applied to a ceiling-mounted luminaire and the result of ballast temperature measurement under the same conditions, the temperature of the lowest part is 60 ° C to 70 ° C, the transistor temperature is 90 ° C to 100 ° C, and the temperature of the electrolytic capacitor is 80 ° C to 90 ° C. ℃ was maintained respectively. For reference, when applied to a skylight-embedded luminaire, the lowermost side of the ballast printed circuit board 400 is different from the uppermost side (the emitted heat rises and is concentrated). As a result, the temperature of the lowest part of the ballast can be lowered further.

As described above, in the fifth embodiment, the accommodating space and the connection space 502 of the ballast printed circuit board 400 are thermally isolated, and semiconductor devices such as transistors, field effect transistors, and control ICs, and electrolytic capacitors are provided with electrodes ( 120 is disposed farthest from the side, while a relatively less sensitive choke transformer or the like is disposed at the position closest to the electrode 120 side, thereby keeping the temperature of the semiconductor element and the electrolytic capacitor relatively vulnerable to heat. As a result, it was confirmed that the circuit can be stably maintained without a protection circuit even after a momentary power failure or a sudden change in voltage, and the life expectancy of the ballast can be extended by about two times or more.

The present invention has been described above, but the present invention is not limited to the embodiments disclosed in the specification and the accompanying drawings, and may be variously modified by those skilled in the art without departing from the technical spirit of the present invention.

Claims

A ballast housing having a first housing and a second housing coupled to each other;

A ballast printed circuit board accommodated in the ballast housing, supplied with power from the outside, and having a ballast circuit element;

A ballast side wire drawn out from the ballast printed circuit board;

A discharge tube side wire drawn out from the discharge tube having an electrode into the ballast housing;

And wire connecting means for electrically connecting the ballast side wire and the discharge tube side wire inside the ballast housing,

The wire connecting means,

The first housing and the second housing are respectively provided to face each other in the coupling direction of the first housing and the second housing, the wire insertion grooves are formed to face each other at the front end, of the wire insertion grooves facing each other A first support member and a second support member into which the ballast side wire is inserted into one and the discharge tube side wire into the other;

And a wedge-type connecting terminal which is inserted into each of the wire insertion grooves facing each other and contacts the ballast side wire and the discharge tube side wire.
The method according to claim 1,

At the inlet of the wire insertion grooves facing each other, a wire setting groove is provided, in which the ballast side wire and the discharge tube side wire cross each other.

The ballast side wire and the discharge tube side wire respectively placed in the wire setting groove is inserted into the wire insertion groove while being bent into the wire insertion groove according to the insertion of the wedge-type connection terminal in the wire insertion groove.
The method according to claim 2,

Discharge lamps each having a positioning groove into which the ballast side wire and the discharge tube side wire are respectively inserted at both ends of the wedge-type connecting terminal.
The method according to claim 2,

The wire setting groove has a discharge lamp having an expanded inlet structure.
The method according to claim 1 or 2,

The wire insertion groove has a discharge lamp having an expanded inlet structure.
The method according to claim 1,

The wedge type connection terminal has a discharge lamp having a structure capable of elastic deformation so as to be in close contact with the wire insertion groove facing each other.
The method according to claim 1,

The wedge type connecting terminal is formed in a plate shape and discharge lamps bent at both sides to secure a gripping area.
The method according to claim 1,

The wedge-shaped connection terminal is a discharge lamp having a cross-section of the wave structure in order to secure a gripping area of the plate.
Ballast housings;

A ballast printed circuit board disposed inside the ballast housing, receiving power from the outside, and having a ballast circuit element;

A discharge tube side wire drawn out from the discharge tube having an electrode into the ballast housing;

A wire connecting means for electrically connecting the discharge tube side wire to the ballast printed circuit board,

The wire connecting means,

A support member provided in the ballast housing and having a wire insertion groove into which the discharge tube side wire is inserted;

And a wedge-type connecting terminal mounted on the ballast printed circuit board and inserted into the wire insertion groove to contact the wire on the discharge tube side.
The method according to claim 9,

The wedge connection terminal is penetrated through the ballast printed circuit board,

The ballast printed circuit board has insertion holes respectively provided at both sides of the penetrating wedge-shaped connecting terminal,

The support member is a discharge lamp having a U-shaped structure so that both the wedge-shaped connecting terminal is fitted in the center portion, both sides are respectively fitted in the insertion hole.
Ballast housings;

A ballast printed circuit board accommodated in the ballast housing, supplied with power from the outside, and having a ballast circuit element;

A ballast side wire drawn out from the ballast printed circuit board;

A discharge tube side wire drawn out from the discharge tube having an electrode into the ballast housing;

And wire connecting means for electrically connecting the ballast side wire and the discharge tube side wire inside the ballast housing,

The wire connecting means,

A support member provided in the ballast housing and having a wire insertion groove into which the ballast side wire and the discharge tube side wire are inserted together;

And a wedge member inserted into the wire insertion groove into which the ballast side wire and the discharge tube side wire are inserted together to maintain contact between the ballast side wire and the discharge tube side wire.
The method according to claim 11,

The wedge member is a discharge lamp of the wedge type connecting terminal.
The method according to claim 11 or 12,

The ballast housing is composed of a first housing and a second housing coupled to each other,

One of the first housing and the second housing is provided with the support member and the other is provided with the wedge member, wherein the support member and the wedge member face each other in the coupling direction of the first housing and the second housing. And a wire insertion groove provided at a distal end of the support member facing the wedge member.