JPS6328530Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a terminal device.

Conventionally, bent parts are provided on both sides of a terminal piece made of a flat plate, and after the terminal piece is inserted into a terminal piece insertion hole provided in a wiring board, the bent parts are brought into contact with the wiring board, and the terminal is There is a terminal device in which a terminal is attached to a board by twisting the protruding end. In this conventional terminal device, when the protruding end of the terminal is twisted, the inner wall of the insertion hole provided in the wiring board contacts the terminal to support the force generated by the twisting.
If the torsional force is too strong, the inner wall of the insertion hole that is in contact with the terminal will be damaged, and the strain caused by the torsion will be applied to the external connection part, causing the external connection part to be twisted.

The present invention was made in view of the above-mentioned drawbacks of the conventional example, and provides a terminal device that can attach a terminal piece to a board without damaging the board, and further prevents deformation of the external connection part of the terminal piece. The purpose is to provide.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings, which are examples of the present invention.

In FIGS. 1 and 2, 10 is a terminal formed by punching out a single conductive metal plate, and 17 is a printed circuit board which is an example of a board.

A head 11 is provided at the upper end of the terminal 10, and an inclined portion 12 that gradually becomes narrower downward is provided at the lower part of the head. In addition, in the center part there is a shoulder part 13 having the same width as the head part 11, and a shoulder part 13 in opposite directions.
Arm pieces 14, 14 bent at 90 degrees are provided, and small protrusions 15, 1 are provided on the top surface of the tip portions of the arm pieces 14, 14.
5 is provided. Note that 16 is an external connection section.

A terminal insertion hole 18 is formed in the printed circuit board 17 and extends vertically through the terminal insertion hole 18, and two small holes 19, 19 are provided with this terminal insertion hole 18 in between.
Further, printed wiring (not shown) is appropriately provided on the upper surface of the printed circuit board 17.

To attach the terminal 10 to the printed circuit board 17, first, the head 11 and shoulder 13 of the terminal 10 are inserted into the terminal insertion hole 18, and the small protrusions 15, 15 are fitted into the small holes 19, 19. By twisting the head 11 protruding from the top surface of the printed circuit board 17, the inclined portion 12 bites into the upper edge of the terminal insertion hole 18, and the printed circuit board 17 is clamped between the inclined portion 12 and the arm pieces 14, 14. Fix it. And printed circuit board 1
Printed wiring formed on the upper surface of 7 or electronic components attached to the printed circuit board 17 (not shown)
By directly soldering or connecting the head 11 of the terminal 10 with an appropriate lead wire, the terminal 1
0 and the electronic component are electrically connected.

Even if an external force is applied to the terminal 10 fixed as described above, for example in the left-right direction in FIG.
is fitted into the terminal insertion hole 18, and the inclined portion 12 bites into the upper edge of the terminal insertion hole 18, so the terminal 10 does not move and is resistant to external forces in the vertical direction in FIG. Inclined portion 12 and arm pieces 14, 14
Since the printed circuit board 17 is held between the two, there is no need to worry about it shaking. Furthermore, even in response to an external force perpendicular to the plane of FIG. The fitting of the terminal 10 and the terminal insertion hole 18 and the small protrusion 1 are effective against external forces that try to rotate the terminal 10.
5 and 15 and the small holes 19 and 19, rotation of the terminal 10 is also restricted.

Although a printed circuit board is used as the substrate in the above embodiment, a general insulating substrate may be used, and the bending angle of the terminal arm is not limited to 90 degrees.

According to this invention, in a terminal device in which a head provided at one end of a terminal piece is inserted into a hole provided in a board, and the terminal is attached to the board by twisting the head protruding from the hole, the terminal is attached to the board. The piece is provided with a sloped part that gradually becomes a width from the head toward the external connection part, and a shoulder part that is wider than the widest part of this sloped part is provided following this sloped part, and furthermore, this shoulder part is provided with a shoulder part wider than the widest part of this sloped part. Arm pieces are bent in opposite directions to each other, and a small protrusion facing toward the head is provided at the tip of the arm piece.
Since it has an external connection part that is almost the same width as the shoulder part, when twisting the head part, it is easy to twist because of the slope part, and the shoulder part is inserted into the insertion hole of the board, and the small protrusion is inserted into the board. Since it is fitted into the small hole of the insertion hole, the torsional force of the head is applied between the inner wall of the insertion hole and the shoulder.
Moreover, it is dispersed between the small protrusion and the inner wall of the small hole, and no twisting occurs in the external connection part. Therefore, the external connection portion is not deformed and there is no need to make any modifications when connecting to other connection members, so a terminal device with high productivity can be obtained. In addition, a small protrusion facing the head side is provided at the tip of the arm piece that is bent in opposite directions relative to the shoulder, and this small protrusion is fitted into a small hole in the board, so that force is applied from one side of the terminal. The terminal piece does not fall even when the terminal is applied, and the connection work to the external connection part can be easily performed.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a terminal device according to the present invention, and FIG. 2 is a sectional view showing the terminal device in an attached state. 10...terminal, 11...head, 14...arm piece,
15...Small protrusion, 17...Printed circuit board, 18...
...Terminal insertion hole, 19...Small hole.

Claims (1)

[Claims for Utility Model Registration] A terminal piece having a head inserted into a terminal insertion hole provided in a board at one end and an external connection part at the other end has the head inserted into the terminal insertion hole. In the terminal device in which the terminal piece and the board are connected by twisting the protruding end of the head in a horizontal direction with respect to the insertion direction after insertion, the terminal piece is provided from the head toward the external connection part. a sloped part that gradually becomes a width pin; a shoulder part that is provided following the sloped part and is wider than the width part of the sloped part; and arm pieces that are bent in opposite directions with respect to the shoulder part. and a small protrusion provided at the tip of this arm piece toward the head side, and an external connection part having approximately the same width as the shoulder part, and the board has a small protrusion that is slightly wider than the shoulder part. A terminal device comprising a terminal insertion hole and a small hole into which the small protrusion fits.