JPS60158571A - Lead wire connecting device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to a lead wire connecting device for connecting lead wires by soldering, which is used, for example, in a terminal block or lamp socket of a lighting device.

Technical Background and Problems Conventionally, various means have been used to connect lead wires in terminal blocks, etc., but fixed connection by soldering has been most commonly used.

When connecting such lead wires, automatic assembly is performed using an automatic machine, but soldering is performed after the lead wires are temporarily held and positioned.

In this case, the covering portion of the lead wire is pushed into the groove so that the core wire is positioned on the terminal block. However, the lead wire is held only by forming a protrusion at the mouth of the groove to prevent it from falling out of the groove, and no consideration is given to preventing the lead wire from being pulled out in the axial direction.

OBJECTS OF THE INVENTION The object of the present invention is to provide a lead wire connecting device that can reliably hold the lead wires when connecting the lead wires to the terminal board.

SUMMARY OF THE INVENTION The present invention has a plurality of blades formed in the lead wire holding portion of the base that are perpendicular to the longitudinal direction of the lead wire and bite into the sheathing portion of the lead wire. Not only will it not fall off, but it will not come out even if a force is applied in the longitudinal direction, and this will ensure that it is held securely.
The structure is such that it can be easily assembled automatically using an automatic machine.

Embodiment of the Invention An embodiment of the present invention will be explained based on the drawings. First, the chassis of the lighting equipment (1
), a pair of lamp sockets (2) are attached to both ends of this chassis (1), and a glow socket (3) and a ballast (4) are installed inside these lamp sockets (2). installed. In addition, the chassis (
A power line insertion port (5) is formed in the center of the power line insertion port (5), and a terminal block (6) constituting the base is formed on the side of this power line insertion port (5).
) is installed. A plurality of terminal boards (8) are fixed to this terminal block (6) by caulking studs (7), and terminal screws (9) are rotatably attached to the ends of these terminal boards (8). A terminal nut αO is screwed into the terminal screw (9). The F cable α°C inserted from the power line insertion port (5) is connected to the terminal block (6).
) is inserted through the connection insertion port 02 of the terminal (
10 and the terminal plate (8) are clamped and fixed to establish an electrical connection.

Then, on the other side wall αj of the terminal block (6), a plurality of lead wire holding portions (to) formed by grooves α→ opened upward are formed. The bottom surface αG of these grooves α→ is an inclined surface α that is shallower on the outside and deeper on the inside. In other words, this inclined surface 0η connects the core wire from above to the terminal plate (8
). Further, a lead wire 01 with a core wire 08 exposed at its tip is provided, and this lead wire 0 has a covering portion (a). A plurality of blade portions (A) are formed in parallel in the direction orthogonal to the longitudinal direction of the lead wire 0 on the opposing wall surfaces Q° of the groove 04. These blade parts (A) have corners formed at their tip edges so as to bite into the covering part (1), and the distance between the opposing blade parts (A) is set to be smaller than the outer diameter of the covering member. has been done.

Further, a space (c) is formed between the lead wire holding portion α9 and the terminal plate (8). This space has a length sufficient to radiate the heat generated when the core wire 68 is soldered. Further, the terminal plate (8) is formed with a through hole (C) through which the solder can penetrate to the back surface of the terminal plate (8) to obtain a firm fixation state.

Note that (c) is a chuck, (c) is a presser jig, and (b) is a soldering iron.

In such a configuration, first, the wiring procedure for the lead wire α will be explained. The chuck (c) holds the lead wire α field and transports it to the position of the terminal block (6) fixed to the chassis (1), and the core wire Q peak is located above the terminal board (8), and the covering member It is located above the groove a4. Then, the holding jig (c) is lowered and the covering member is pushed into the groove 04. At this time,
The blade part (c) deforms and bites into the covering member.

Moreover, the covering member of the lead wire α is inclined along the bottom surface αQ of the groove α→. Therefore, the tip of the core wire αi contacts the terminal plate (8) from above at a predetermined angle, and is maintained in a state of pressing the terminal plate (8) with a certain degree of elastic force. Therefore, the core wire α does not come off the terminal board (8).

In this way, the lead wire α is held in the groove α.
→ It will not fall off in the opening direction, and it will not come out in the longitudinal direction. Therefore, when the chuck (c) releases its grip on the lead wire 01 and returns to its original position, if the lead wire ◇l is bent, a force is generated to pull it out in the longitudinal direction, but Since it is firmly held by the blade part that bites into the covering member, it cannot be pulled out from the lead wire holding part α→.

Furthermore, since the lead wire α is positioned along the bottom surface 00 of the groove α→, the core wire 0→ is reliably joined to the terminal plate (8). Therefore, soldering with the soldering iron (A) is performed reliably, and there is little variation in the solder position, so the through hole is always
C) Soldering is performed at the part.

Therefore, although the core wire αe is sometimes heated during soldering, the heat transmitted through the core wire 0e is effectively cooled in the space (c), thereby preventing the covering portion (1) from softening. That is, although it is unavoidable that the covering member receives heat, the softening of the covering part (1) to the extent that biting by the blade part (a) becomes ineffective is prevented by heat dissipation from the space (into the space). Therefore, by the time the solder hardens, the lead wire (toward) may become attached to the lead wire holding part OFJ due to its own weight, etc.
It won't fall off.

In addition, in the above embodiment, the blade parts (A) formed on the opposing wall surfaces 01) were formed to face each other, but in actual practice, these blade parts (C) were made so that they did not face each other. They may be arranged in a zigzag pattern. Further, depending on the case, it may be formed only on one wall surface H.

Furthermore, as the material for the terminal block (6), not only thermosetting resin but also thermoplastic resin can be used. In this case, in addition to the biting action of the blade portion (C), the elastic force of the wall portion also acts to hold the lead wire (I'S).

Effects of the Invention In the present invention, as described above, the lead wire holding portion of the base is provided with a plurality of blade portions that are perpendicular to the longitudinal direction of the lead wire and bite into the sheathing portion of the lead wire, so that the lead wire is The wire will not fall off from the wire holding part, and will not come out even if a force is applied in the longitudinal direction. Heat during soldering is dissipated through the space between the wire holder and the terminal board, preventing the sheath from softening, which prevents the lead wire from becoming unreliable in the lead wire holder. It has the effect of preventing

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a plan view of the terminal block installed on the chassis, FIG. 2 is a perspective view of the terminal block,
FIG. 3 is a longitudinal sectional side view thereof, FIG. 4 is a side view during automatic assembly, and FIG. 5 is a plan view thereof. 6...Terminal block (base), 8...Terminal board, 15...
Lead wire holding part, 18...Core wire, 19...Lead wire, 20...Coating part, 21...Wall surface, 22...Blade part, 23...For space part Applicant Tokyo Electric Co., Ltd. company

Claims (1)

[Claims] 1. A base is provided that includes a lead wire holding portion into which the sheathing portion of the lead wire is inserted and a terminal plate to which the core wire exposed at the tip of the lead wire is connected, and the lead wire is held in a pure state. A lead wire connecting device characterized in that a plurality of blade portions are formed in parallel on opposing wall surfaces of the portions to cut into the covering portion perpendicularly to the longitudinal direction of the lead wire. 2. The lead wire according to claim 1, characterized in that the soldering applied to the core wire between the lead wire holding part and the terminal plate forms a space sufficient to radiate heat. Connection device.