JPH0817334A - Compact fluorescent lamp - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a compact fluorescent lamp that facilitates insertion work of an external lead wire when connecting the external lead wire to a base pin. A lead wire guide cylinder portion 216 in which a base 20 is fixed to an end portion of an arc tube 10 having a bent discharge path, and external lead wires 16 ... Derived from the end portion of the arc tube 10 are formed on a base base 21. In the compact fluorescent lamp 1 connected to the base pin 23 through the lead wire guide tube portion, the height of the lead wire guide tube portion is lower than the bottom surface of the cover pedestal 211 of the base base 21, and the back side of the erroneous insertion preventing groove 215. It is characterized in that it is formed higher than the height of the formed inner protrusion 217. The external lead wire can be easily inserted into the lead wire guide cylinder portion, mistaken insertion can be prevented, and the assembly work efficiency is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a base for a compact fluorescent lamp having a curved discharge path.

[0002]

2. Description of the Related Art Recently, as a fluorescent lamp, a plurality of U-shaped or H-shaped glass tubes are melt-bonded to each other at their end side walls, and a plurality of glass tubes are used to make a single meandering inside. Compact fluorescent lamps have been developed that have a light-emitting tube with a rectangular discharge path. The compact fluorescent lamp of this type has advantages such as a small size and high brightness because the light emitting portions are concentrated in one place.

By the way, in this type of compact fluorescent lamp, the ends of the arc tubes are close to each other, and these ends are attached to a single base, which is a so-called single base structure.

A JIS standard GX10q type is used for the base. This type of GX10q type mouthpiece is shown in FIG. 3 of Japanese Utility Model Laid-Open No. 64-5350 and 63-997.
As disclosed in Japanese Patent Publication No. 41, etc., it is composed of a cap base made of an insulating resin and a cap cover capped on the cap base, and a cap pin is projectingly provided at an end of the cap base. ing.

The mouthpiece base of the GX10q type mouthpiece has a cover pedestal to which the mouthpiece cover is attached, and a socket-fitting cylindrical portion projecting at the end of the cover pedestal with a step. The base pin has a structure in which the mouthpiece pin is projectingly provided on the socket fitting cylindrical portion. Then, the socket fitting cylinder portion is adapted to be fitted into the socket on the lighting fixture side.

Both ends of the arc tube are inserted into the base cover and are joined to the base cover with an adhesive. An external lead wire, which is connected to an electrode sealed at the end of the arc tube and led out from the end of the arc tube, is connected to the cap pin by crawling inside the cap base. In this case, a lead wire guide cylinder portion that communicates with the mouthpiece pin is integrally formed inside the fitting cylinder portion, so that the external lead wire passes through the inside of the mouthpiece base and is connected to the lead wire guide cylinder portion. When inserted, it is guided to the base pin and soldered to the base pin.

[0007]

However, in the conventional case, since the lead wire guide cylinder portion is formed in the inner part of the socket fitting cylinder portion, that is, the height of the lead wire guide cylinder portion is low, There was a problem that it was difficult to see from the direction of the upper end opening, and it was difficult to insert the external lead wire into the lead wire guide cylinder portion.

That is, a total of 4 protrusions are provided on the base of the base.
The space between the cap pins of the book is determined by the JIS standard, and the lead wire guide cylinders communicating with these cap pins are also densely packed in the center of the socket fitting cylinder with the above-mentioned predetermined interval. Will be formed. One external lead wire must be independently inserted into each of the plurality of closely packed lead wire guide cylinders, but this work is difficult to mechanize, and it must be done manually by the operator. It is forced. At this time, if it cannot be seen how the external lead wires are inserted into the lead wire guide cylinder portion, one external lead wire is not inserted into each lead wire guide cylinder portion and one lead wire guide cylinder portion is not inserted. There is a problem that two external lead wires are plugged in, and in such a case, it is necessary to insert again. If the height of the lead wire guide cylinder is low, it is difficult to confirm how the external lead wire is inserted into the lead wire guide cylinder, which makes the insertion work difficult.

Further, a concave groove is formed on the outer surface of the socket fitting tubular portion for restricting the direction when the socket fitting tubular portion is inserted into the socket on the lighting fixture side to prevent erroneous insertion. However, on the inner surface of the socket fitting cylindrical portion, an inner protrusion is formed by molding at a position on the back side of the erroneous insertion preventing concave groove. If the height of the lead wire guide cylinder is low, the external lead wire to be inserted into the lead wire guide cylinder may hit the inner protrusion and hinder the insertion.

On the other hand, when the external lead wires led out from the end portion of the arc tube are made to crawl into the base of the base, there is a fear that the external lead wires of different polarities come into contact with each other in the base of the base to cause a short circuit.

In order to prevent this, the compact fluorescent lamp described in the above publication adopts a structure in which a partition wall is provided on the base of the base, and each external lead wire is partitioned by this partition wall to prevent a short circuit. ing.

However, the partition walls described in these publications are formed in a cross shape. Therefore, when the external lead wire is inserted into the lead wire guide cylinder portion, these partition walls interfere with the visual confirmation of the lead wire guide cylinder portion. There is a problem that becomes.

Further, the higher the partition wall is, the more effective it is to prevent mutual contact of the external lead wires. However, the higher the partition wall is, the same when the partition wall visually recognizes the lead wire guide tube portion. There is a problem that interferes with.

Therefore, an object of the present invention is to provide a compact fluorescent lamp which facilitates the work of inserting the external lead wire when the external lead wire is connected to the base pin.

[0015]

According to a first aspect of the present invention, there is provided a discharge tube having a bent discharge path, electrodes being sealed at both ends of the discharge path, and fixed to the both ends of the discharge tube. A mouthpiece cover, and a mouthpiece base connected to the mouthpiece cover, wherein the mouthpiece base is provided with a cover pedestal and a socket fitting tubular portion, and the mouthpiece base is provided at an end of the socket fitting tubular portion. A plurality of cap pins to which a plurality of lead wires led out from the arc tube are connected, and a plurality of lead wire guide cylinder parts provided inside the socket fitting cylinder part for guiding the lead wires to the cap pins. A compact fluorescent lamp provided with an inner protrusion formed on the inner surface of the socket fitting cylindrical portion, which is the back side of a groove for preventing misinsertion provided on the outer surface of the socket fitting cylindrical portion. Te, the height of the lead wire guide tube portion is characterized by being formed higher than the height of the lower, and the inner protrusion than the cover cradle bottom. In this case, the base may or may not have a partition wall.

According to a second aspect of the present invention, the base is provided with
A partition wall is provided along a line connecting the ends of the arc tube to prevent mutual contact of the external lead wires guided into the base.

The invention according to claim 3 is characterized in that the partition wall is formed to be higher than the bottom surface of the cover receiving base and lower than the height of the opening end face of the cover receiving base.

According to a fourth aspect of the present invention, there is provided a discharge tube having a bent discharge path, and electrodes are sealed at both ends of the discharge path.
A base which is fixed to the both ends of the arc tube and includes a cap cover and a cap base connected to the cap cover, the cap base having a cover cradle and a socket fitting cylinder, and the socket fitting. Mutual contact between a plurality of cap pins, which are provided at the end of the tubular portion, and to which a plurality of lead wires led out from the arc tube are connected, and the external lead wires, which are provided in the cap base and are guided into the cap base. In the compact fluorescent lamp having a partition wall for preventing the above, the partition wall is formed along a line connecting the ends of the arc tube, and the partition wall is It is formed to be higher than the bottom surface and lower than the height of the opening end surface of the cover pedestal.The electrode sealed at the end of the arc tube has the electrode axis of the partition. A are arranged in a direction along, this arc tube the external lead wire led out from the end of, and at least one insulating tube polarity different external lead wire is covered.

According to a fifth aspect of the present invention, there is provided a discharge tube having a bent discharge path, and electrodes are sealed at both ends of the discharge path.
A base which is fixed to the both ends of the arc tube and includes a cap cover and a cap base connected to the cap cover, the cap base having a cover cradle and a socket fitting cylinder, and the socket fitting. Mutual contact between a plurality of cap pins, which are provided at the end of the tubular portion, and to which a plurality of lead wires led out from the arc tube are connected, and the external lead wires, which are provided in the cap base and are guided into the cap base. In the compact fluorescent lamp having a partition wall for preventing the above, the partition wall is formed along a line connecting the ends of the arc tube, and the partition wall is It is formed to be higher than the bottom surface and lower than the height of the opening end surface of the cover pedestal.The electrode sealed at the end of the arc tube has the electrode axis of the partition. Characterized in that it is arranged in a direction intersecting with.

According to a sixth aspect of the present invention, a plurality of lead wire guide tubular portions for guiding the lead wires to the cap pins are formed inside the socket fitting tubular portion according to the fourth or fifth aspect. It is characterized by being. In this case, the height of the lead wire guide cylinder is not limited.

[0021] The invention of claim 7 is characterized by comprising the compact fluorescent lamp according to any one of claims 1 to 6, and an instrument body to which the compact fluorescent lamp is mounted. It is a lighting device.

[0022]

According to the first aspect of the present invention, the height of the lead wire guide tubular portion formed inside the socket fitting tubular portion is lower than the bottom surface of the cover pedestal and the back side of the erroneous insertion preventing groove. Since it is formed to be higher than the height of the inner protrusion, which makes it easier to see how the external lead wire is inserted into the lead wire guide cylinder, there is no concern that the outer lead will hit the inner protrusion. Insertion work becomes easy. If the height of the lead wire guide cylinder is higher than the bottom surface of the cover pedestal, the external lead wires may be bent in the cover pedestal and may be complicated.

According to the second aspect of the present invention, even when the partition wall is formed on the base, the height of the lead wire guide tubular portion formed inside the socket fitting tubular portion is increased. The wire guide tube portion is easily visible, and the work of inserting the external lead wire is facilitated.

According to the third aspect of the present invention, since the height of the partition wall is reduced, the lead wire guide tubular portion can be easily seen.
The work of inserting the external lead wire becomes easy. According to the invention of claim 4, since the partition wall is formed along the line connecting the end portions of the arc tube and the height of the partition wall is reduced, the external lead wire is guided to the base pin when the external lead wire is introduced. The tip of the lead wire is easier to see and insertion becomes easier. In this case, by lowering the partition wall, there is a concern that the external lead wires with different polarities may come into contact with each other, but since at least one of the external lead wires with different polarities is covered with an insulating tube, the external lead wires should not touch each other. Can be prevented.

According to the invention of claim 5, also in this case, since the partition wall is formed along the line connecting the ends of the arc tube and the height of the partition wall is reduced, the external lead wire is not provided. When the lead wire is guided to the base pin, the tip of the external lead wire is easy to see and insertion becomes easy. Also in this case, the lowering of the partition wall may cause the external lead wires having different polarities to come into contact with each other, but in the present invention, the electrode sealed at the end portion of the arc tube has its electrode shaft whose partition wall is the partition wall. Since it is arranged in the direction that intersects with, the roots of the external lead wires that are led out from the end of the arc tube are separated by the partition wall, so it is difficult for them to touch each other, so prevent short circuits. You can

According to the invention of claim 6, since the lead wire guide cylinder is formed inside the socket fitting cylinder of claim 4 or 5, the work of inserting the external lead wire into the cap pin is performed. Will be easier.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the first embodiment shown in FIGS. The first embodiment shows an embodiment according to the invention of claims 1 to 3,
In the figure, 1 is a double-tube compact fluorescent lamp. The compact fluorescent lamp 1 includes an arc tube 10 and a base 20.

The arc tube 10 is constructed by joining two U-shaped glass tubes 11a and 11b having an outer diameter of 20.0 mm at their ends. Each of the two U-shaped glass tubes 11a and 11b is made of lead glass or soda lime magnesia glass, and the side walls of adjacent ends are heated and blown, and the blown points are abutted against each other and fused. Are joined by.
Therefore, these two U-shaped glass tubes 11a,
11b are mechanically joined to each other by the fusion-bonding portion 12, and the space portions of the U-shaped glass tubes 11a and 11b are electrically connected to each other through the fusion-bonding portion 12, so that the arc tube 10 is internally formed. As a whole, one meandering discharge path is formed.

Electrodes 13a and 1 are provided at the ends of the glass tubes 11a and 11b corresponding to the ends of the meandering discharge path.
3b is sealed. The electrodes 13a and 13b are filament electrodes made of tungsten and having a double or triple coil structure. Both ends of the electrodes 13a and 13b are respectively connected to lead wires 14 ...
Externally penetrates the flare stem 15 made of lead glass or soda lime magnesia glass sealed at the ends of the glass tubes 11a and 11b, and externally leads 16
…It is connected to the.

Exhaust capillaries 17a and 17b are connected to the flare stem 15, and these exhaust capillaries 17a and 17b are sealed and cut after the exhaust process, but one of the exhaust capillaries, for example, 17b, has a discharge path. It may also contain an amalgam 18 for controlling the mercury vapor pressure therein.

A phosphor coating 19 is formed on the inner surface of the discharge path of the arc tube 10. Fluorescent film 19
For example, a three-wavelength light-emitting phosphor is used, which is a mixture of three types of rare-earth phosphors that emit light in the respective wavelength regions of blue, green, and red.

The arc tube 10 having such a structure is fixed to the base 20. The base 20 is a GX10q type base regulated by the JIS standard, and includes a base 21 made of an insulating material such as polybutylene terephthalate (PBT) resin, and a PBT also covered with one end of the base 21. The cap cover 22 is made of an insulating material such as resin, and a total of four cap pins 23 are formed on the other end of the cap base 21 and are made of a conductive material such as brass.

The base 21 has an oval cover pedestal 211 and an elliptic cylindrical socket fitting tubular portion 212 protruding from the center of the cover pedestal 211.
The four base pins 23 ... Are projectingly provided at the end of the socket fitting tubular portion 212. These base pins 23
Is a central portion of the end surface of the socket fitting tubular portion 212 and is arranged with a predetermined distance from each other.

In addition, on the outer surface of the socket fitting cylindrical portion 212, positioning projections 213 and 21 are provided at both ends in the longitudinal direction.
3 is formed, and locking protrusions 21 are provided on both side walls.
4, 214, and the concave groove 21 at the symmetrical position for preventing incorrect insertion
5, 215 are formed.

Then, this socket fitting tubular portion 212
.. for guiding the external lead wires 16 are formed in total. These lead wire guide cylinder portions 216 ... Are centrally provided in the central portion of the socket fitting portion 212, and the respective lead wire guide cylinder portions 216 ... Are connected to the respective base pins 23. As shown in FIG. 3, the lead wire guide tubular portions 216 ... Have a height h from the bottom surface of the socket fitting tubular portion 212.
However, it is formed to be shorter than the depth of the socket fitting portion 212, that is, the lead wire guide tubular portion 216 ... Is formed lower than the bottom surface of the cover receiving base 211. Further, the lead wire guiding cylinder portions 216 ... Are formed higher than the height of the inner protruding portion 217 formed on the back side thereof by forming the concave grooves 215, 215 for preventing erroneous insertion.

A partition wall 218 for partitioning the inside of the socket fitting tubular portion 212 into two chambers, left and right, is formed on the base 21. This partition wall 21
As shown in FIG. 6, 8 is formed along the line connecting both ends of the arc tube 10, whereby the partition wall 2 is formed.
18 divides the above-mentioned four lead wire guide tube portions 216 ... into two sets of two.

The height H of the partition wall 218 is
As shown in FIG. 3, it is formed so as to be lower than the opening end surface of the cover receiving base 211, but higher than the reference surface of the cover receiving base 211.

The base cover 21 of the base 21 having such a structure is capped with the base cover 22. In this case, as shown in FIG. 4, the engaging recesses 219 formed on the outer surface of the cover pedestal 211 are engaged with the engaging protrusions 221 formed on the inner surface of the mouthpiece cover 22, thereby allowing the mouthpiece base 21. And the cap cover 22 is attached.

The arc tube 1 is provided on the upper surface of the base cover 22.
Insertion holes 222 and 222 into which the end portion of 0 is inserted and an enclosing tube portion 223 into which the fusion bonding portion 12 is inserted are formed. These insertion holes 222 and 222 and the enclosing tube portion 223 are formed.
Both ends of the arc tube 10 and the fused portion 12 inserted in the
The end portion having is attached to the mouthpiece cover 22 with an adhesive 225.

In this case, the stopper tongue piece 22 is provided on the inner surface of the mouthpiece cover 22 so as to face the insertion holes 222 and 222.
4, 224 are formed, and these insertion holes 222, 2 are formed.
When the both ends of the arc tube 10 inserted into 22 hit the stopper tongues 224 and 224, further insertion is prevented, whereby the exhaust thin tubes 17a and 17b do not abut the reference surface of the base 21. Are regulated.

The external lead wires 16 led out from the ends of the arc tube 10 joined to the base cover 22 with the adhesive 225 as described above are respectively connected to the base base 21.
Are guided to the lead wire guide cylinder portions 216 formed in the above and are inserted into the lead wire guide cylinder portions 216. By this insertion, the external lead wires 16 ...
, And is led out from the tip of the base pins 23, and the excess portion of the lead-out end is cut and soldered to the base pins 23.

Regarding the first embodiment having such a structure,
The operation will be described. The arc tube 10 is fixed to the base cover 22 in advance, as shown in FIG. That is, the arc tube 10
End and the fusion-bonding part 12 are inserted into the insertion holes 222, 222 and the surrounding cylinder part 223 formed on the upper surface of the base cover 22, and the both ends and the fusion-bonding part 12 of the arc tube 10 are bonded with the adhesive 225. Is joined to the mouthpiece cover 22 by. In this state, the external lead wires 16 ... Leaded out from the end portion of the arc tube 10 are led out to the lower side of the base cover 22.

Next, the mouthpiece base 22 is attached to the mouthpiece cover 22.
Connect 1 This connection is made by connecting the locking recesses 219 shown in FIG. 4 formed on the outer surface of the cover pedestal 211 to the cap cover.
This is done by engaging with the locking projections 221 formed on the inner surface of 22.

Prior to such engagement, the external lead wires 16 ... Derived from the end of the arc tube 10 are inserted into the cap pins 23 of the cap base 21. In this insertion work, the external lead wires 16, 16 of the external lead wires 16 ... Having different polarities are distributed to both sections partitioned by the partition wall 218, and these are introduced into the socket fitting portions 212, respectively, and lead wire guides are provided. Tube part 216 ...
Plug in.

In this case, since the partition wall 218 is present, the external lead wires 16, 16 having different polarities are prevented from coming into contact with each other, and the occurrence of short circuit is eliminated. Further, since only one partition wall 218 is provided along the direction connecting the ends of the arc tube 10, the partition wall 218 does not get in the way when looking at the lead wire guide tubular portion 216 ... Inside the socket fitting portion 212, so that the partition wall 218 can be seen. easy. Since the height H of the partition wall 218 is made lower than the height of the cover pedestal 211, the partition wall 218 does not get in the way when looking into the lead wire guide tubular portion 216 in the socket fitting portion 212, and the external lead It becomes easy to confirm whether or not the tip of the wire 16 is inserted into the lead wire guide cylinder portion 216.

Since the height h of the lead wire guide cylinder portions 216 is formed lower than the bottom surface of the cover receiving base 211, the external lead wires 16 led out from the end portion of the arc tube 10 are formed.
Of the external lead wires 16 in the cover pedestal 211 can be prevented from being bent or complicated, and at the same time, the lead wire guide tubular portion 216 can be guided to the lead wire guide tubular portion 216. Grooves 215, 2 for preventing incorrect insertion
Since the outer lead wire 16 is formed to be higher than the inner protruding portion 217 formed on the back side thereof, the tip of the outer lead wire 16 does not protrude when the outer lead wire 16 is inserted into the lead wire guide tubular portion 216. There is no need to worry about hitting the upper end surface of the portion 217, and the work of inserting the external lead wires 16 ... Is facilitated.

By thus inserting the external lead wire 16 into the lead wire guide cylinder portion 216, the external lead wire 16 is inserted.
Is the cap pin 23 that communicates with the lead wire guide tube portion 216.
In such a penetrating state, the mouthpiece cover 22 and the mouthpiece base 21 are attached to each other by the engagement between the engagement recesses 219 ... And the engagement projections 221.

After that, the surplus tip portion of the external lead wire 16 led out from the tip of the base pin 23 is cut and the tip is soldered to the base pin 23, whereby the lamp 1
The assembly of is completed.

Therefore, in the case of the first embodiment described above, the height h of the lead wire guide tube portions 216 ...
Since it is formed to be lower than the bottom surface of No. 1 and higher than the height of the inner protruding portion 217 formed on the inner surface of the socket fitting tubular portion 212, the external lead wires 16 are inserted into the lead wire guide tubular portion 216. It is easy to insert, prevents wrong insertion, and improves the work efficiency of assembly.

Next, a second embodiment corresponding to the invention of claim 4 will be described with reference to FIGS. 7 and 8. In the second embodiment, a partition wall 218 is formed on the mouthpiece base 21, and the partition wall 218 partitions the inside of the socket fitting tubular portion 212 into two chambers on the left and right, and FIG. As shown in FIG. 3, the arc tube 10 is formed along a line connecting both ends of the arc tube 10. For this reason, the partition wall 218 divides the four external lead wires 16 ... Derived from the end of the arc tube 10 into two sets of two.

The height H of the partition wall 218 is lower than the opening end surface of the cover receiving base 211, but higher than the bottom surface of the cover receiving base 211, as in the case shown in FIG. There is.

In this case, the electrodes 13a and 13b sealed at the ends of the arc tube 10 are arranged such that the direction of the respective electrode axes is along the line connecting both ends of the arc tube 10, that is, the partition wall 218. It is provided along the extending direction.

The four external lead wires 16 ... Derived from the end portion of the arc tube 10 are covered with an insulating tube 70 on one of the lead wires having different polarities. Other configurations may be the same as those of the first embodiment, and the same reference numerals are given and the description thereof is omitted.

According to the second embodiment having such a configuration,
Since the partition wall 218 is formed along the line connecting the ends of the arc tube, only one partition wall is provided, and the partition wall 218 is formed on the inner surface of the socket fitting tubular portion 212 as compared with the case of the cross-shaped partition wall described in the above publication. The formed lead wire guide tube portion 216 ...
The external lead wire 16 ... to the base pin 23.
The outer lead wires 16 ...
Easy to insert.

Since the height H of the partition wall 218 is made lower than the height of the mouthpiece base 21, this also makes it easier to look at the lead wire guide cylinder portion 216 ... And the external lead wires 16 ... It becomes easy to insert into.

In this case, since the partition wall 218 is lowered, the external lead wires 16 having different polarities may come into contact with each other, but at least one of the external lead wires having different polarities is covered with the insulating tube 70. It is possible to prevent the external lead wires 16, 16 from contacting each other.
In particular, as shown in FIG. 8, when the electrode axes of the electrodes 13a and 13b sealed at both ends of the arc tube 10 are oriented in the same direction as the partition wall, they are led out from the ends of the arc tube 10. The external lead wires 16 and 16 are attached to the lead wire guide tube portion 216.
When routed in the direction of ..., the roots are relatively close to each other. However, by covering at least one of the external lead wires 16 and 16 with the insulating tube 70 as described above,
Contact between these external lead wires 16 and 16 can be prevented, and a short circuit can be avoided.

In this case, the lead wire guide cylinder portion 216
It is preferable that the height of the ... Is higher, but the height is not particularly limited, and the present invention can be applied to a mouthpiece without the lead wire guide tubular portion 216.

Next, a third embodiment corresponding to the fifth aspect of the invention will be described with reference to FIGS. 9 and 10.
In the third embodiment, similar to the second embodiment, a partition wall 218 is formed on the mouthpiece base 21, and the partition wall 218 divides the inside of the socket fitting tubular portion 212 into two chambers, left and right. In addition to partitioning, it is formed along a line connecting both ends of the arc tube 10, as shown in FIG. For this reason, this partition wall 218 is formed by the arc tube 10.
The four external lead wires 16 ... Derived from the end of the are divided into two sets of two.

The height H of the partition wall 218 is lower than the opening end face of the cover receiving base 211, but higher than the bottom surface of the cover receiving base 211, as in the case of FIG. .

In this case, however, the electrodes 13a and 13b sealed at the ends of the arc tube 10 are in the direction in which the directions of the respective electrode axes intersect the line connecting both ends of the arc tube 10, that is, the partition wall. It is provided so as to intersect the direction in which 218 extends.

The other structure may be the same as that of the first embodiment, and the same reference numerals are given and the description thereof is omitted. According to the third embodiment having such a configuration, as in the second embodiment,
Since the partition wall 218 is formed along the line connecting the ends of the arc tube, only one partition wall is provided, and the partition wall 218 is formed on the inner surface of the socket fitting tubular portion 212 as compared with the case of the cross-shaped partition wall described in the above publication. The formed lead wire guide tube portion 216 ...
The external lead wire 16 ... to the base pin 23.
The outer lead wires 16 ...
Easy to insert.

Since the height H of the partition wall 218 is made lower than the height of the mouthpiece base 21, this also makes it easier to look at the lead wire guide cylinder portion 216 ... And the external lead wires 16 ... It becomes easy to insert into.

In this case, the lowering of the partition wall 218 may cause the external lead wires 16, 16 having different polarities to come into contact with each other. However, the electrode shafts of the electrodes 13a, 13b sealed at both ends of the arc tube 10 may be prevented. Is arranged in a direction intersecting with the partition wall, the external lead wires 16 and 16 led out from the end of the arc tube 10 are connected to the lead wire guide cylinder portion 21.
When the wires are routed in the direction of 6, ..., The roots are relatively separated from each other, so that contact between these external lead wires 16 and 16 can be prevented, and a short circuit can be avoided.

In this case as well, the lead wire guide tubular portion 21
The height of 6 ... is preferably high, but it is not limited to this and is also applicable to a die in which the lead wire guide tubular portion 216 is not formed.

In each of the above-mentioned embodiments, the compact fluorescent lamp in which two U-shaped glass tubes are joined in a plane has been described, but the present invention can be implemented even if the number of glass tubes connected is three or more. Also, it is possible to implement a compact fluorescent lamp in which two U-shaped glass tubes are arranged in front and rear and provided like four pillars. An H-shaped glass tube may be used instead of these U-shaped glass tubes. Furthermore, the present invention can be carried out even when the arc tube is composed of one U-shaped glass tube or one H-shaped glass tube.

[0066]

As described above, according to the invention of claim 1, the height of the lead wire guide tubular portion formed inside the socket fitting tubular portion is lower than the bottom surface of the cover pedestal and is erroneously inserted. Since it is formed to be higher than the height of the inner protrusion that is the back side of the prevention groove, it is easy to see how the external lead wire is inserted into the lead wire guide cylinder, and there is a concern that the outer lead wire may hit the inner protrusion. Since it is eliminated, the work of inserting the external lead wire becomes easy.

According to the second aspect of the invention, even when the partition wall is formed on the mouthpiece base, the height of the lead wire guide tubular portion formed inside the socket fitting tubular portion is increased. The wire guide tube portion is easily visible, and the work of inserting the external lead wire is facilitated.

According to the third aspect of the present invention, since the height of the partition wall is reduced, the lead wire guide cylinder portion can be more easily visually recognized and the work of inserting the external lead wire can be facilitated. According to the invention of claim 4, since the partition wall is formed along the line connecting the end portions of the arc tube and the height of the partition wall is reduced, the external lead wire is guided to the base pin when the external lead wire is introduced. The tip of the lead wire is easier to see and insertion becomes easier. in this case,
By lowering the partition wall, there is a concern that the external lead wires with different polarities will contact each other, but since at least one of the external lead wires with different polarities is covered with an insulating tube,
It is possible to prevent contact between external lead wires.

According to the invention of claim 5, also in this case, since the partition wall is formed along the line connecting the ends of the arc tube and the height of this partition wall is reduced, the external lead wire is When the lead wire is guided to the base pin, the tip of the external lead wire is easy to see and insertion becomes easy. Also in this case, the lowering of the partition wall may cause the external lead wires having different polarities to come into contact with each other, but in the present invention, the electrode sealed at the end portion of the arc tube has its electrode shaft whose partition wall is the partition wall. Since it is arranged in the direction that intersects with, the roots of the external lead wires that are led out from the end of the arc tube are separated by the partition wall, so it is difficult for them to touch each other, so prevent short circuits. You can

According to the invention of claim 6, since the lead wire guide cylinder is formed inside the socket fitting cylinder of claim 4 or 5, work for inserting the external lead wire into the cap pin Will be easier.

[Brief description of drawings]

FIG. 1 is a front view showing a compact fluorescent lamp as a whole according to a first embodiment of the present invention.

FIG. 2 is an overall cross-sectional view of the same embodiment.

FIG. 3 is an exploded cross-sectional view of the base of the embodiment.

FIG. 4 is an exploded perspective view of the mouthpiece according to the embodiment.

FIG. 5 is a sectional view of the base of the embodiment.

FIG. 6 is a plan view of the base of the embodiment.

FIG. 7 is a sectional view showing an entire compact fluorescent lamp according to the second embodiment of the present invention.

FIG. 8 is a plan view of the base of the embodiment.

FIG. 9 is a sectional view showing an entire compact fluorescent lamp according to the third embodiment of the present invention.

FIG. 10 is a plan view of the base of the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Compact fluorescent lamp 10 ... Arc tube 11a, 11b ... U-shaped glass tube 12 ... Fusion part 13 ... Electrode 16 ... External lead wire 20 ... Base 21 ... Base 22 ... Base cover 23 ... Base pin 70 ... Insulation tube 211 ... Cover cradle 212 ... Socket fitting tubular portion 215 ... Incorrect insertion preventing groove 216 ... Lead wire guiding tubular portion 217 ...
Inner protrusion 218 ... Partition wall 222 ... Insertion hole 223 ...
Enclosing cylinder part 225 ... Adhesive

Claims (6)

[Claims] 1. An arc tube having a bent discharge path, electrodes being sealed at both ends of the discharge path, and fixed to the both ends of the arc tube and connected to a base cover and the base cover. A base which is composed of a base and which has a cover pedestal and a socket fitting tubular portion, and a plurality of lead wires which are provided at the end of the socket fitting tubular portion and which are led out from the arc tube. A plurality of cap pins to be connected, a plurality of lead wire guide cylinders provided inside the socket fitting cylinder for guiding the lead wires to the cap pins, and formed on the inner surface of the socket fitting cylinder. A compact fluorescent lamp having an inner protrusion that is on the back side of a recessed groove for preventing erroneous insertion provided on the outer surface of the socket fitting tubular portion, and the height of the lead wire guiding tubular portion is The compact fluorescent lamp is characterized in that it is formed to be lower than the bottom surface of the cover pedestal and higher than the height of the inner protrusion. 2. The partition base is provided with a partition wall along the line connecting the ends of the arc tube to prevent mutual contact of the external lead wires guided into the base. The compact fluorescent lamp according to claim 1. 3. The compact type according to claim 2, wherein the partition wall is formed to be higher than a bottom surface of the cover pedestal and lower than a height of an opening end surface of the cover pedestal. Fluorescent lamp. 4. An arc tube having a bent discharge path, electrodes being sealed at both ends of the discharge path, and fixed to the both ends of the arc tube and connected to the base cover and the base cover. A base which is composed of a base and which has a cover pedestal and a socket fitting tubular portion, and a plurality of lead wires which are provided at the end of the socket fitting tubular portion and which are led out from the arc tube. In a compact fluorescent lamp comprising a plurality of base pins to be connected, and a partition wall provided on the base, which prevents mutual contact of the external lead wires introduced into the base, a partition wall, The partition wall is formed along the line connecting the ends of the arc tube, and the partition wall is higher than the bottom surface of the cover pedestal and the height of the opening end surface of the cover pedestal. The electrode, which is formed so as to be lower than the arc tube and is sealed at the end portion of the arc tube, has its electrode axis arranged in a direction along the partition wall, and the external portion led out from the end portion of the arc tube. A compact fluorescent lamp, characterized in that at least one of external leads having different polarities is covered with an insulating tube. 5. An arc tube having a bent discharge path, electrodes being sealed at both ends of the discharge path, and fixed to the both ends of the arc tube, and connected to the cap cover and the cap cover. A base which is composed of a base and which has a cover pedestal and a socket fitting tubular portion, and a plurality of lead wires which are provided at the end of the socket fitting tubular portion and which are led out from the arc tube. In a compact fluorescent lamp comprising a plurality of base pins to be connected, and a partition wall provided on the base, which prevents mutual contact of the external lead wires introduced into the base, a partition wall, The partition wall is formed along the line connecting the ends of the arc tube, and the partition wall is higher than the bottom surface of the cover pedestal and the height of the opening end surface of the cover pedestal. Remote is formed lower electrode had FuSo the end of the arc tube, compact fluorescent lamps in which the electrode axis is characterized in that it is arranged in a direction crossing the partition wall. 6. A plurality of lead wire guide cylinders for guiding the lead wires to the cap pins are formed inside the socket fitting cylinder. Compact fluorescent lamp described in.