JP2009266447A - U-shaped light emitting tube device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To form two lead wires led out of a connector toward its rear side and connected to electrodes of a U-shaped light emitting tube to flare backward by a function of the connector itself in order to readily and smoothly attach the U-shaped light emitting tube to a rear frame of a liquid crystal module. <P>SOLUTION: Lead wire insertion holes 13 formed in right and left two positions of the connector 10 are inclined relative to electrode housing holes 12. In the other example, the lead wire insertion hole 13 inclined relative to the electrode housing hole 12 and an insertion hole 15 straightly communicating with the electrode housing hole 12 are formed in the connector 10. The insertion hole 15 is used for inserting a lead wire 50 into the connector 10. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a U-shaped arc tube device, in particular, a U-shape in which two lead wires led out from a connector are connected to two end electrodes of a U-shaped arc tube such as a cold cathode ray tube. The present invention relates to an arc tube apparatus.

  This type of U-shaped arc tube device is used for a backlight of a liquid crystal module in a television receiver or the like. In addition, since the U-shaped arc tube of the U-shaped arc tube device used for the backlight of a large-sized liquid crystal module has a long length for its thickness, the U-shaped arc tube itself has an external force. And the left and right straight tube portions are liable to be twisted or opened or closed easily through the turning portion connecting the left and right straight tube portions of the U-shaped arc tube. I know. It has also been found that the U-shaped arc tube breaks when the amount of deformation exceeds the limit.

  Further, the connector of the U-shaped arc tube device is provided with two lead wires individually connected to the two end electrodes of the U-shaped arc tube, and these lead wires are connected to the rear end face of the connector. It is pulled out from two places on the left and right.

  FIG. 10 is a plan view showing a connector used in a U-shaped arc tube device as a conventional example. FIG. 11 is a partially omitted plan view for explaining the problems of the U-shaped arc tube device as the conventional example, and FIG. 12 is an explanatory diagram for explaining the problems of the conventional example.

  As shown in FIG. 10, the connector 10 is a resin molded body, and includes two parallel left and right electrode housing holes 12 and 12 for housing the electrodes 51 provided at the ends of the lead wires 50, and the electrode housing holes. The two lead wires 50 and 50 are individually connected to the portions 12 and 12 respectively, and two lead wire insertion holes 13 and 13 into which the two lead wires 50 and 50 are individually inserted are provided. Each lead wire insertion hole 13 communicates linearly with the electrode housing hole 12 with which the lead wire insertion hole 13 communicates. For this reason, the two lead wires 50 are pulled out rearward of the connector 10 in a parallel state.

  As shown in FIG. 11, the U-shaped arc tube 70 has two straight tube portions 71 and 71 communicated with each other by a turning portion 72. Further, the U-shaped arc tube 70 is provided with two end electrodes. These end electrodes and the two lead wires 50 drawn from the connector 10 are connected by soldering. Reference numeral 52 denotes a connection portion formed by soldering the end electrode and the lead wire 50 to the U-shaped arc tube 70.

  As can be seen from FIG. 11, in the natural state, the distance between the two lead wires 50 and 50 drawn backward from the connector 10 is larger than the distance between the two end electrodes in the U-shaped arc tube 70. It is extremely narrow. In addition, in the U-shaped arc tube device used for the backlight of a liquid crystal module such as a television receiver, the length of the two lead wires drawn out from the connector is shortened to the limit in order to reduce the cost. It has been tried. Therefore, as shown in FIG. 11, the two lead wires 50 connected to the two end electrodes of the U-shaped arc tube 70 via the connection portions 52, 52 are in a state where there is almost no looseness. It may be pulled out from 10 afterwards.

On the other hand, conventionally, in the field of liquid crystal display devices, in order to reduce the cost by reducing the required length of the lead wire, devise the lead wire drawing direction from the end electrode of the U-shaped arc tube. (For example, refer to Patent Document 1). Further, in a fluorescent lamp used for a backlight of a display or the like, it is known that a lead wire lead-out base portion is reinforced with an adhesive with respect to a connector from which two lead wires are drawn. (For example, refer to Patent Document 2). And it is suggested by this patent document 2 that the lead-out | leading-out base part of the lead wire reinforced with the adhesive agent is shape-retained by the adhesive agent in the back spread. In addition, it is also known that adjacent lead wires are separated by a rubber block provided in the lamp holder in order to prevent a short circuit of the lead wires of the direct type backlight device (see, for example, Patent Document 3).
JP 2006-330162 A Japanese Utility Model Publication No. 2-39447 JP 2006-253116 A

  However, as described with reference to FIG. 10, the two lead wire insertion holes 13, 13 on the left and right sides of the connector 10 communicate with the electrode housing hole 12 in a straight line and are parallel to each other. As shown in FIG. 11, the two lead wires 50 and 50 drawn out from the connector 10 are drawn out rearward from the connector 10 in a state where there is almost no looseness and connected to the two end electrodes of the U-shaped arc tube. If this is done, the two straight tube portions 71, 71 of the U-shaped arc tube 70 are restored by the return force to the initial position of the two lead wires 50, 50, as indicated by phantom lines in FIG. May be pulled and deformed in the closing direction. In addition, the lead wire 50 is obliquely connected to the end electrode of the U-shaped arc tube 70 at the connecting portion 52 by soldering, and an unreasonable force is still applied to the connecting portion 52, and the arrow in FIG. As indicated by N, the connector 10 may be twisted with respect to the left and right straight pipe portions 71, 71, or the left and right straight pipe portions 71, 71 may be twisted and deformed with respect to the connector 10. . If these deformations and twists exist, it becomes difficult to perform the mounting operation for mounting the U-shaped arc tube 70 on the rear frame (not shown) of the liquid crystal module or the panel post. There is a problem that an excessive force may be applied to the U-shaped arc tube 70 and the U-shaped arc tube 70 may be broken.

  In this regard, as suggested by the above-mentioned Patent Document 2, if the lead-out root portion of the two lead wires reinforced with an adhesive is retained in the shape of the back spread by the adhesive, the connector Even if the distance between the two lead wires inside the tube is significantly narrower than the distance between the two end electrodes of the U-shaped arc tube, the distance between the soldered ends of the two lead wires is In order to expand, it is thought that generation | occurrence | production of an above-described deformation | transformation and twist becomes possible.

  However, in order to apply the adhesive to the connector and keep the lead-out root portion of the two lead wires in a rear-spread shape, the application of the adhesive is cumbersome and cumbersome, and skill is required. On the contrary, the assembly cost increases, and the meaning of reducing the cost by shortening the lead wire as much as possible is diminished.

  The present invention has been made in view of the above-described problems and circumstances, and it does not require a troublesome and troublesome adhesive coating operation for assembling the connector, but the two drawn out from the connector to the rear thereof. By taking measures that allow the lead wires to be shaped to be expanded afterward, when these lead wires are connected to the two end electrodes of the U-shaped arc tube, the left and right as described in FIG. Provided is a U-shaped arc tube device capable of effectively suppressing the closed deformation of the straight tube portions 71, 71 and the torsional deformation of the left and right straight tube portions 71, 71 as described in FIG. The purpose is that.

  A U-shaped arc tube device according to the present invention includes a U-shaped arc tube and a connector from which two lead wires individually connected to two end electrodes of the U-shaped arc tube are led out rearward. The connector has two left and right parallel electrode housing holes for housing the electrodes provided at the ends of the lead wires, and the two lead wires communicate with the electrode housing hole portions separately. It has two lead wire insertion holes on the left and right sides that are inserted individually. Then, by forming the lead wire insertion hole portions provided at the two left and right positions of the connector so as to be inclined with respect to the electrode housing hole portion, the two lead wires are formed in the lead wire insertion hole portions. A function of retaining the shape is added so that the pull-out direction is expanded backward.

  In the U-shaped arc tube device having this configuration, the electrode storage hole portions at the left and right positions of the connector are parallel. On the other hand, the counterpart connector for inserting and connecting the connector of the U-shaped arc tube device is generally configured in such a manner that parallel electrodes are assembled at two left and right positions. Therefore, the connector of the U-shaped arc tube device having the above configuration can be plugged into the mating connector having a general configuration, and therefore, the configuration of the mating connector to which the connector is plugged and connected is changed. There is no need to do.

  Nevertheless, in the connector of this U-shaped arc tube device, the two lead wire insertion hole portions that communicate with the electrode housing hole portions separately extend the lead-out direction of the two lead wires. Since the shape retaining function is provided, the two leads pulled out from the connector without adopting the configuration of regulating the lead-out direction of the lead wire with an adhesive as described in Patent Document 2 It is possible to keep the line extending outward. Therefore, when two lead wires are connected to the two end electrodes of the U-shaped arc tube, the left and right straight tube portions of the U-shaped arc tube are closed and twisted and deformed. Occurrence is suppressed, and the attachment work for attaching the U-shaped arc tube to the rear frame or panel post of the liquid crystal module can be easily and easily performed. Further, it is possible to prevent a situation in which an excessive force is applied to the U-shaped arc tube during the mounting operation and the U-shaped arc tube 70 is broken.

  In the present invention, the connector is communicated with the insertion hole of the lead wire that linearly communicates with each of the two electrode storage holes at the left and right and extends backward, and the same electrode storage hole. A clearance space that allows the insertion hole portion and the lead wire insertion hole portion to communicate with each other in the left-right direction of the connector, and a gap space that is located between the insertion hole portion and the lead insertion hole portion to increase the width of the clearance space. A convex portion that is narrower than the thickness of the lead wire is added, and the narrow portion in the gap space that is narrowed by the convex portion allows the lead wire inserted into the insertion hole to get over the convex portion. The lead wire insertion hole has a width that can be moved, and the convex portion can position the lead wire that has moved to the lead wire insertion hole to the lead wire insertion hole. Have It is possible to adopt a cormorant configuration.

  With this configuration, the lead wire insertion hole provided in the connector communicates linearly with the electrode housing hole of the connector and extends rearward, so that the lead wire is inserted into the electrode housing hole of the connector. When performing the operation of housing the electrode, the lead wire can be inserted straight into the electrode housing hole through the insertion hole. Then, it is possible to keep the lead-out direction of the two lead wires so as to be expanded rearward by simply shifting the lead wire to the lead wire insertion hole after insertion. For this reason, even when the electrode fitting is attached to the tip of the lead wire, the lead wire can be assembled to the connector in a state where the lead wire is easily and reasonably retained in the rearward expansion.

  In the present invention, the connector is communicated with the insertion hole of the lead wire that linearly communicates with each of the two electrode storage holes at the left and right and extends backward, and the same electrode storage hole. A gap space for connecting the insertion hole portion and the lead wire insertion hole portion in the left-right direction of the connector is added, and an opening of the gap space is opened at the rear end surface of the connector. It has a lid that closes the insertion port of the insertion hole that opens at the rear end surface and the opening of the gap space, and the lid is inserted into the insertion port by closing the insertion port and the opening. Further, the lead wire may be configured to be pushed by the lid body and moved from the insertion port to the lead wire insertion hole portion and positioned by the lid body.

  With this configuration, the lead wire is inserted straight into the electrode accommodation hole using the insertion hole of the lead wire communicating linearly with the electrode accommodation hole of the connector, and then the lid is closed and inserted. The lead wire is pushed by the lid body only by closing the insertion port of the hole portion and the opening of the gap space, and is moved from the insertion port to the lead wire insertion hole portion and positioned by the lid body. For this reason, even when the electrode metal fitting is attached to the tip of the lead wire, the lead wire can be assembled in a state in which the lead wire is easily stretched and retained in the rearward extension.

  As described above, according to the present invention, the two lead wires pulled out from the connector to the rear side thereof are expanded backward, although the troublesome and troublesome adhesive application work is not required for assembling the connector. It becomes shape-retaining. Therefore, when these lead wires are connected to the two end electrodes of the U-shaped arc tube, the left and right straight tube portions as shown in FIG. 11 are closed and the connector or the left and right straight tube portions are twisted. Is effectively suppressed. As a result, the mounting operation for mounting the U-shaped arc tube to the rear frame or panel post of the liquid crystal module can be easily and easily performed. Further, it is possible to prevent a situation in which an excessive force is applied to the U-shaped arc tube during the mounting operation and the U-shaped arc tube breaks.

  FIG. 1 is a plan view of a connector used in a U-shaped arc tube device according to an embodiment of the present invention and two lead wires are assembled. FIG. 2 is a partial cross-sectional view showing an enlarged main part of FIG. FIG. 3 is a longitudinal sectional side view of the main part of the connector, and FIG. 4 is a partially omitted plan view of a U-shaped arc tube device employing the connector.

  The connector 10 shown in FIGS. 1 to 4 is a resin molded body. As shown in FIG. 1 or FIG. 2, the connector 10 has two parallel left and right electrode housing holes 12 and 12, and two left and right lead wires inserted into the electrode housing holes 12 and 12. Holes 13 and 13 are provided. Then, the lead wire 50 is inserted using each lead wire insertion hole 13, and is formed by an electrode at the tip of the lead wire 50, specifically, an electrode fitting attached to the tip of the lead wire 50. The electrode 51 is housed in the electrode housing hole 12. Further, as shown in FIG. 3, the electrode fitting forming the electrode 51 is provided with a claw piece 53, and this claw piece 53 is engaged with the engagement surface 14 formed on the connector 10. The lead wire 50 is prevented from coming off from the connector 10.

  In this embodiment, the lead wire insertion holes 13 and 13 at the two left and right portions of the connector 10 are respectively maintained so that the direction in which the two lead wires 50 and 50 are pulled out from the connector 10 is expanded backward. The function to shape is given.

  As a means for imparting the shape retaining function, in this embodiment, as shown in FIG. 2, the lead wire insertion holes 13, 13 are inclined outward in the left-right direction near the opening end. An inclined hole portion 14 is provided. Then, by bringing the rear wall of the inclined hole portion 14 into contact with the lead wire 50 inserted through the lead wire insertion hole portion 13, the lead wire 50 drawn out rearward of the connector 10 faces outward in the left-right direction. It is configured to be inclined.

  According to the connector 10 having the above-described configuration, the two left and right lead wires 50 and 50 are formed as shown in FIG. 1 by the lead wire retaining action exhibited by the lead wire insertion hole portion 13 having the inclined hole portion 14 described above. The shape is kept in a slanted posture.

  When the two left and right lead wires 50 and 50 are shaped so as to be expanded rearward in this way, the two wires drawn from the connector 10 to the two end electrodes of the U-shaped arc tube 70 as shown in FIG. Even if the lead wires 50 and 50 are shortened and soldered and connected without loosening them, the distance between the soldered ends of the two lead wires 50 and 50 is originally wide. The situation in which the straight tube portion 71 of the U-shaped arc tube 70 is pulled and deformed by the return force to the initial position provided in the lead wire 50 is suppressed. In addition, since the interval between the end portions of the lead wires 50 and 50 is originally wide, when the end portions of the lead wires 50 and 50 are soldered to the two end electrodes of the U-shaped arc tube 70, It is less likely that the lead wire 50 is obliquely connected to the end electrode of the U-shaped arc tube 70 at the connecting portion 52 by soldering. As a result, it is difficult to cause a situation in which an excessive force is applied to the connection portion 52, and the connector 10 is twisted with respect to the left and right straight pipe portions 71, 71, or left and right with respect to the connector 10. Occurrence of a situation in which the straight pipe portions 71 and 71 are torsionally deformed is also suppressed.

  In the connector 10 described above, the distance between the end portions of the two left and right lead wires 50, 50 increases as the spread angle of the lead wires 50, 50 increases, and decreases as the spread angle decreases. Therefore, the interval between the end portions of the two lead wires 50 and 50 can be adjusted to a desired width by changing the inclination angle of the inclined hole portion 14 provided in the lead wire insertion hole portion 13 of the connector 10. Is possible. By utilizing this fact, it becomes possible to match the distance between the end portions of the two lead wires 50 and 50 with the mutual distance between the two end electrodes of the U-shaped arc tube 70, thereby making the U-shaped light emission. It is also possible to solder the end of the lead wire 50 to the end electrode of the U-shaped arc tube 70 so that a load is not applied to the straight tube portion 71 of the tube 70.

  By the way, in the above-described embodiment described with reference to FIG. 1 and the like, the two lead wires 50, 50 are provided by providing the inclined hole portion 14 in each of the two lead wire insertion hole portions 13 on the left and right sides of the connector 10. A function to retain the shape so as to be expanded later is added. However, when this configuration is adopted, when the lead wire 50 is assembled to the connector 10, the lead wire 50 needs to be inserted into the lead wire insertion hole portion 13 through the inclined hole portion 14 and further inserted into the electrode housing hole portion 12. There is. Therefore, when the electrode 51 at the tip of the lead wire 50 is configured by the electrode fitting as described above, it is necessary to insert the lead wire 50 into the lead wire insertion hole portion 13 or the electrode housing hole portion 12 while bending the lead wire 50. It may be difficult to perform the assembly work. Then, the connector which improved this point is demonstrated below.

  FIG. 5 is a rear view of a connector used in a U-shaped arc tube device according to another embodiment, and FIG. 6 is a partially broken plan view showing an enlarged portion along the line VI-VI in FIG.

  As shown in FIG. 5 or 6, in this connector 10, the lead wire insertion hole portion 13 and the lead wire insertion hole portion 15 communicate with one electrode housing hole portion 12, and the lead wire insertion hole portion 13. Is inclined toward the outer side in the left-right direction with respect to the electrode housing hole 12, whereas the lead wire insertion hole 15 communicates linearly with the electrode housing hole 12 and extends backward. In addition, a gap space 16 that allows the lead wire insertion hole portion 15 and the lead wire insertion hole portion 13 to communicate in the left-right direction is formed in the connector 10, and the width of the gap space 16 is the same as that of the lead wire insertion hole portion 15. It is narrowed at the place where the convex part 16 is formed by the convex part 17 positioned between the lead insertion hole part 13. The narrow portion 16a in the gap space 16 narrowed by the convex portion 17 is formed so that the lead wire 50 inserted into the lead wire insertion hole portion 15 gets over the convex portion 17 as shown by an arrow X in FIG. It is determined to be wide enough to be moved to the part 13. In addition, the protrusion 17 is given a height that allows the lead wire 50 moved to the lead wire insertion hole 13 to be positioned in the lead wire insertion hole 13. In the connector 10, the electrode housing hole portion 12, the lead wire insertion hole portion 13, and the lead wire insertion hole portion 15 are formed symmetrically at two places on the left and right.

  When assembling the lead wire 50 to the connector 10, after inserting the lead wire 50 straight through the lead wire insertion hole 15 and inserting the electrode 51 into the electrode housing hole 12 as shown by the arrow Y in FIG. Then, the lead wire 50 is shifted to the side as indicated by the arrow X in FIG. 3 so as to get over the convex portion 17 and move to the lead wire insertion hole portion 13. When this operation is performed on the two lead wires 50, 50, the two lead wires 50, 50 are assembled to the connector 10 in a state where the two lead wires 50, 50 are expanded in the rearward direction. Therefore, the workability of assembling the two lead wires 50 and 50 to the connector 10 is improved as compared with the case described with reference to FIG. In the connector 10 described here, the action or effect that the workability of assembling the lead wire 50 is improved can be achieved with respect to the connector 10 described with reference to FIGS. Other actions and effects are the same as those described for the connector 10 described with reference to FIGS.

  7 is a rear view of a connector used in a U-shaped arc tube device according to still another embodiment, FIG. 8 is a partially broken side view showing an enlarged portion along the line VIII-VIII in FIG. 7, and FIG. [FIG. 8] is an enlarged partial cross-sectional plan view showing a portion along line IX-IX in FIG. 7.

  As shown in FIGS. 7 to 9, even in this connector 10, the lead wire insertion hole 13 and the lead wire insertion hole 15 communicate with one electrode housing hole 12, and the lead wire insertion The hole portion 13 is inclined toward the outer side in the left-right direction with respect to the electrode housing hole portion 12, whereas the lead wire insertion hole portion 15 communicates linearly with the electrode housing hole portion 12 and extends rearward thereof. Yes. Further, the connector 10 is formed with a gap space 16 that allows the lead wire insertion hole 15 and the lead wire insertion hole 13 to communicate in the left-right direction. Further, the opening 16 b of the gap space 16 is opened at the rear end surface of the connector 10. A lid 18 is provided at the rear end of the connector 10 via a resin hinge 19. When the lid 18 is closed, the lid 18 closes the insertion port 15 a of the insertion hole 15 that opens at the rear end surface of the connector 10 and the opening 16 b of the gap space 16. In the connector 10, an electrode housing hole 12, a lead wire insertion hole 13, and a lead wire insertion hole 15 are formed symmetrically at two left and right positions.

  With this configuration, when the lead wire 50 is assembled to the connector 10, the lid 18 is closed as shown in FIG. 7 or FIG. 9, and the insertion port 15 a and the opening 16 b are closed with the lid 18. The lead wire 50 inserted into the insertion port 15a is pushed outward in the left-right direction by the lid 18 and moves from the insertion port 15a to the lead wire insertion hole 13 and is positioned by the lid 18 after the movement. . Therefore, the workability of assembling the two lead wires 50 and 50 to the connector 10 is improved as compared with the case described with reference to FIG. In the connector 10 described here, the action or effect that the workability of assembling the lead wire 50 is improved can be achieved with respect to the connector 10 described with reference to FIGS. Other actions and effects are the same as those described for the connector 10 described with reference to FIGS.

  1 to 12, the same or corresponding elements are denoted by the same reference numerals.

It is a top view of the connector used for the U-shaped arc tube device concerning the embodiment of the present invention. It is the partial cross-sectional top view which expanded and showed the principal part of FIG. It is a vertical side view of the principal part of the connector of FIG. FIG. 2 is a partially omitted plan view of a U-shaped arc tube device employing the connector of FIG. 1. It is a rear view of the connector used for the U-shaped arc tube apparatus which concerns on other embodiment. It is the partially broken top view which expanded and showed the part which follows the VI-VI line of FIG. It is a rear view of the connector used for the U-shaped arc tube apparatus which concerns on other embodiment. It is the partially broken side view which expanded and showed the part which followed the VIII-VIII line of FIG. It is the partial cross-sectional top view which expanded and showed the part which follows the IX-IX line of FIG. It is the top view which showed the connector used for the U-shaped arc tube apparatus as a prior art example. It is a partially abbreviated plan view for demonstrating the problem of the U-shaped arc tube apparatus as a prior art example. It is explanatory drawing for demonstrating the other problem of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Connector 12 Electrode accommodation hole part 13 Lead wire insertion hole part 15 Lead wire insertion hole part 15a Insertion port 16 Gap space 16a Narrow part in gap space 16b Opening hole of gap space 17 Protrusion part 18 Cover body 50 Lead wire 51 Electrode 70 U-shaped arc tube

Claims (3)

A U-shaped arc tube, and a connector from which two lead wires individually connected to the two end electrodes of the U-shaped arc tube are led out to the rear, and the connector includes an end portion of the lead wire Two parallel left and right electrode housing holes for housing the electrodes, and two left and right lead wires respectively communicating with the electrode housing holes and individually connecting the two lead wires. In the U-shaped arc tube device having an insertion hole portion,
By forming the lead wire insertion hole portions provided at two positions on the left and right sides of the connector so as to be inclined with respect to the electrode housing hole portion, the lead wire drawing directions of the two lead wires are formed in the lead wire insertion hole portions. A U-shaped arc tube device, which is provided with a function of retaining the shape so as to be expanded afterward. An insertion hole portion of a lead wire that linearly communicates with each of the two electrode storage hole portions on the left and right sides and extends rearward to the connector, and the insertion hole portion that communicates with the same electrode storage hole portion, The gap between the lead wire insertion hole and the connector in the left-right direction and the insertion hole and the lead insertion hole are located between the insertion hole and the lead insertion hole. And a convex part that is narrower than that,
The narrow portion in the gap space narrowed by the convex portion has a size that allows the lead wire inserted into the insertion hole portion to move over the convex portion and move to the lead wire insertion hole portion. The U-shaped arc tube according to claim 1, wherein the convex portion has a height capable of positioning the lead wire moved to the lead wire insertion hole portion in the lead wire insertion hole portion. apparatus. An insertion hole portion of a lead wire that linearly communicates with each of the two electrode storage hole portions on the left and right sides and extends rearward to the connector, and the insertion hole portion that communicates with the same electrode storage hole portion, A gap space that communicates the lead wire insertion hole with the connector in the left-right direction is added,
The opening of the gap space has an opening at the rear end face of the connector, and has a lid that closes the insertion opening of the insertion hole that opens at the rear end face of the connector and the opening of the gap space. By closing the insertion port and the opening port with the lid, the lead wire inserted into the insertion port is pushed by the lid and moves from the insertion port to the lead wire insertion hole, and the lid body The U-shaped arc tube device according to claim 1, which is configured to be positioned.

Images