JPH03669Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] The present invention is a tube lamp that is used by attaching a cap to the end of the tube-shaped lamp body and directly connecting it to a power supply line for lighting, such as in a cold cathode discharge lamp. Regarding shaped lamps.

[Technical background of the invention] In a conventional cold cathode discharge lamp, lead wires are drawn out from both ends of the tube-shaped lamp body, and a cap-shaped cap is attached to the end of the lamp body so as to cover the lead wire lead-out portion. A lead wire is drawn out from a tubular wire drawing portion provided on the outer surface and connected to a lighting power supply line, and this connection portion is covered and protected with a hisstic tube.

[Problems with background technology]

Since there are wire terminals and solder protrusions on the outer surface of the connection between the lead wire and the electric wire, the tube is easily damaged, causing a risk of electrical leakage and electric shock, and there is also a risk that the electric wire may be severed at the connection.

[Purpose of invention]

This invention eliminates the risk of electrical leakage or electric shock caused by damage to the tube that protects the connection between the two wires in tube lamps that directly connect the lead wire and the feeder wire, and also eliminates the risk of the connection becoming disconnected. The purpose is to

[Summary of the idea]

By providing a connection space for accommodating the connection part between the lead wire and the power supply line in the tubular wire draw-out part protruding from the outer surface of the cap body, the connection part can be accommodated in the draw-out part and not come into contact with the cable tube. , and to avoid bending at the connection part.

[Example of idea]

The details of the invention will be explained by means of illustrated embodiments.

Reference numeral 1 denotes a straight tube fluorescent discharge lamp body, 2, 2 a pair of cap-shaped cap bodies attached to both ends of the lamp body 1, and 3, 3 a part of the cap bodies 2, 2, for example, on the sides. The protruding electric wire introduction part 4, 4 is a power supply line that is introduced from the electric wire introduction part 3, 3 and lights up the lamp body 1, and 5, 5 is a hisstic tube that covers and protects this power supply line 4, 4. .

In the lamp body 1, electrodes 12 are sealed at both ends of a straight bulb 11, and lead wires 13 connected to the electrodes 12 are led out from the end face of the bulb 11.

The base body 2 is a bottomed cylindrical body made of synthetic resin, that is, a cap-shaped body, and has an internal space 22 into which the end of the lamp body 1 is inserted from the opening surface 21, and the lamp body 1 is inserted into the center of the inner space 22. A stopper 23 is formed to stop the
4 is formed, and an adhesive 25 is injected through this injection port 24 and capped onto the end of the lamp body 1.

The wire introduction section 3 has a tubular shape, and a connection space 32 consisting of a large diameter hole extends from the tip end surface 31 to an appropriate depth.
and a lead wire extraction hole 3 communicating from this space 32 to the internal space 22 of the base body 2.
3, and the connecting portion 42 between the lead wire 13 drawn out from the internal space 22 and the feeder line 4 is connected to the connecting space 3.
2, and the outer surface of the introduction part 3 has an outer diameter into which the hissicle tube 5 is fitted,
In addition, a retaining portion 34 consisting of a protrusion for fixing this tube 5 is formed.

Next, a method for assembling this tubular lamp will be explained. The lead wire 13 is passed from the opening surface 21 of the base body 2 through the internal space 22 to the extraction hole 33 of the wire introduction part 3.
, penetrate through the connection space 32 and connect to the distal end surface 31 .
pull out from Next, the internal space 22 of the cap body 2
An adhesive 25 is injected into the inner surface of the lamp body 1 from an adhesive injection port 24, and the lamp body 1 is capped and fixed. Then,
A power feeder 4 whose tip is exposed is covered with a hisstube 5, and the exposed portion 41 of the tip is twisted around the tip of the lead wire 13, soldered, and the terminal is cut off. Then, push this connection part 42 into the connection space 32 of the wire introduction part 3, and insert the cable tube 5 into the wire introduction part 3.
The outer surface is coated, and this coated portion 51 is heated with hot air. Then, the covering part 51 of the cable tube 5 heat-shrinks and comes into close contact with the outer surface of the wire introduction part 3, and the retaining part 34
It bites into the covering portion 51 to prevent the histic tube 5 from escaping, and also comes into close contact with the end of the power supply line 4 to prevent the power supply line 4 from escaping.

In this way, in the tubular lamp of this embodiment, the connection part 42 between the lead wire 13 and the feeder line 4 is accommodated in the connection space 32 of the wire introduction part 3, so that the connection part 4
Even if there is a protrusion on the tube 2, there is no risk of damaging the tube 5. Therefore, electric shock or leakage caused by the protrusion can be prevented, and the feeder line 4 can be bent repeatedly at the connection part 42. There is no risk of wire breakage.

Furthermore, in this embodiment, a retaining part 3 is provided on the outer surface of the wire introduction part 3 to prevent the cable tube 5 from falling off.
4, it is possible to prevent the electric wire connecting part 42 from coming off due to the detachment of the cable tube 5, and there are many additional effects, such as eliminating the need to chamfer the edge of the tip of the electric wire introduction part 3.

In the present invention, the wire introduction portion may be provided at any location on the outer surface of the base body, and there is no limitation on the number thereof. Further, the connection space may be continuous with the internal space of the cap body while maintaining its inner diameter.

Further, the retaining portion may be an annular protrusion or an annular recessed groove, as long as it can lock the contracted histic tube and prevent it from falling off.

Furthermore, the present invention can be applied not only to straight-tube discharge lamps but also to straight-tube light bulbs.

[Effect of idea]

The tubular lamp of the present invention has a cap-shaped cap body attached to the end of the tubular lamp body from which the lead wire is led out so as to cover the lead wire outlet part, and a tubular cap body that protrudes from the outer surface of the cap body. A space is provided in the wire introduction part to accommodate the connection part between the lead wire and the lighting power supply line,
Furthermore, since the end of the tube that covers the power supply line is fitted onto the outer surface of the wire introduction section, the wire connection section is protected within the introduction section and there is no risk of damaging the tube, thereby eliminating the risk of electric shock or leakage. Also, there is no longer any fear that the connection will break.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the tubular lamp of the present invention, and FIG. 2 is an enlarged cross-sectional view of the main parts. 1... Lamp body, 13... Lead wire, 2...
Base body, 22...Internal space, 3...Wire introduction part, 32...Connection space, 34...Removal prevention part, 4
...Feeding line, 42... Connection part, 5... Hishitube.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A tubular lamp body from which a lead wire is led out from the end face, a cap-shaped cap body that covers the lead wire lead-out portion and is attached to the end of the lamp body, and this cap. A tubular electric wire introduction part that protrudes from the outer surface of the main body and communicates with the main body to form a connection space in which a connection part between the lead wire and the lighting power supply line drawn from the tip is accommodated, and an end part. A tubular lamp, comprising: a tube fitted onto the outer surface of the wire introduction portion to cover the power supply wire. (2) The tubular lamp according to claim 1, wherein the electric wire introduction part is provided with a retaining part on the outer surface into which the cable tube is fitted.