JPH03212997A - Radial taping electronic component - Google Patents

Abstract

PURPOSE:To eliminate a need for a complicated component metal mold and to enhance the accuracy of the distance between taping terminals by a method wherein a metal wire material is bent to be nearly U-shaped and the taping terminals are connected. CONSTITUTION:An electronic component 11 is molded of an insulating material. A plurality of terminals 12 protrude from the board-mounting bottom face 11a. Holes 11b, 11c are made, by keeping a prescribed distance P, in positions other than protruding parts of the terminals 12 on the center line on the bottom face 11a. Taping terminals 13 are formed of a round metal wire material whose diameter is a little larger than the diameter of the holes 11b, 11c made in the bottom face 11a; the wire material is worked so as to have the same size as the distance P and to be U-shaped in such a way that mutual sides are parallel. Thereby, the distance P, of two sides at connecting ends 13a, 13b of the taping terminals 13, which must be accurate in the mounting operation is maintained highly accurately because the taping terminals are connected by the connecting ends 13a, 13b. A mounting accuracy can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to electronic components for mounting on printed circuit boards, such as switches, mainly used in consumer video and audio equipment such as televisions, video, and audio equipment.

Conventional technology In general, as a method for attaching electronic components to printed circuit boards, parts with simple shapes and a small number of lead wires, such as resistors and capacitors, can be mounted accurately and quickly using automatic insertion a<for radial lead components. Electronic components such as switches and variable resistors with complex shapes and a large number of terminals that require wiring are installed manually.

However, in recent years, the assembly of sets has become more streamlined, and electronic components have become smaller and more difficult to handle manually. In recent years, installation has become required.

FIGS. 6 to 8 are diagrams illustrating conventional taping examples used in automatic insertion machines. In Figures 6 to 8,
Reference numeral 1 denotes an electronic component having a plurality of terminals 2, and two cylindrical bosses lb and Ic are provided on a board mounting bottom surface 1a, which are perpendicular to the bottom surface 1a and spaced apart by a predetermined distance S.

Reference numeral 3 designates a taping terminal, which has a pedestal part 3a, and lead parts 3b and 3c which are attached perpendicularly to the pedestal part 3a in parallel with each other at a predetermined distance P, and a boss lb on the pedestal part 3a. , lc are provided. As shown in FIG. 8, the taping terminal 3 has holes 3e,
After inserting the bosses lb and lc into the parts 3d, the bosses lb and lc are fixed to the electronic component 1 by cold or heating tightening.

Further, the tips of the lead portions 3b and 3c are attached to the base tape 4 with an adhesive tape 5 while maintaining a predetermined distance 'MP.

Problems to be Solved by the Invention However, in the conventional taping structure described above, the taping terminal 3 is a sheet metal part that requires a precision mold, so in addition to the drawback that the parts cost is high, the lead parts 3b and 3c are generally A length of 18 to 20 bites is required, which causes variations in the distance P between the leading ends of the lead portions 3b and 3c and twisting, resulting in a lack of taping accuracy and, ultimately, mounting accuracy.

The present invention solves these conventional problems,
The purpose of this invention is to provide a radial taping electronic component that is inexpensive and has excellent mounting accuracy.

Means for Solving the Problems In order to solve the above problems, the radial taping electronic component of the present invention provides an electronic component in which a plurality of terminals protrude from a bottom surface for mounting a board, in which the protruding portions of the terminals are arranged on the center line of the bottom surface. A different position: Two holes are made at σ with a predetermined distance P, and the metal wire is bent into an almost U-shape with the sides parallel to each other and a distance equal to the predetermined distance P. A taping terminal is provided, the open end of which is planted vertically through the hole on the bottom surface, and the connecting end of the taping terminal is pasted on the tape-shaped body so that the electronic components are arranged at a predetermined pitch. It is something that was given.

Operation With the above configuration, the electronic component can be mounted by attaching the connecting end of the U-shaped taping terminal, whose open end is planted in the hole on the bottom surface of the board mounting surface and protruding, to the tape-shaped body using adhesive tape or the like. , it is possible to arrange and fix the tape-like body accurately and easily at a predetermined pitch. Therefore, by supplying this tape-shaped body with electronic components to an automatic insertion machine, it can be inserted into a printed circuit board using a conventionally used automatic insertion machine for highly versatile radial lead components.

Example An embodiment of the present invention will be described below based on the drawings.

1 and 2 are diagonal diagrams illustrating the structure of a radial taping electronic component showing one embodiment of the present invention. In FIGS. 1 and 2, reference numeral 11 is an electronic component made of an insulating molded material and having a plurality of terminals 12 protruding from the board mounting bottom surface 11a. Holes 11b and 11c are provided at different positions with a predetermined distance P between them. 13 is a taping terminal, and the diameter of this taping terminal 13 is that of the electronic component 11.
The holes 11b and 11c are made of a round metal wire having a diameter slightly larger than that of the holes 11b and 11c provided in the bottom surface 11a of the hole 11b and 11c.
The open end 13a is bent into a substantially U-shape with a distance equal to the distance P, and the sides thereof are parallel to each other.

The holes 13b are cold-filled or heated and press-fitted into the holes 11b and 11c, respectively, and are fixed perpendicularly to the bottom surface 11a of the electronic component. 14 is a base tape made of paper material having holes 14a arranged at a predetermined pitch, and the connecting end 13c of the taping terminal 13 is fixed to this base tape with an adhesive tape 15, as shown in FIG. The parts 11 are fixed to the base tape 14 at a predetermined pitch.

As described above, according to this embodiment, since the taping terminal 13 is U-shaped and made of round wire material, it does not require a complicated processing mold, and therefore the taping cost can be reduced, and the taping terminal 13 does not require precision during mounting. Since the taping terminals 13 are connected at the connecting end 13a in advance, the distance P between the two sides at the connecting end 13a of the taping terminal 13 can be maintained with high accuracy, and there is an advantage that mounting accuracy can be improved.

4 and 5 show the hole 11b of the taping terminal 13,
It is a perspective view explaining an example of attachment to 11c. The openings 113a and 13b of the taping terminal 13 are respectively rolled as shown in FIG. 4 or low-left processed as shown in FIG. 5, so that the open ends 13a and 13b are press-fitted into the holes 11b and 11c. Thereby, the fixing strength of the taping terminal 13 to the electronic component 11 can be improved.

Effects of the Invention As described above, according to the present invention, since the taping terminal is formed by bending a metal wire into a substantially U-shape, there is no need for a complicated component processing mold. It has the advantage of reducing taping costs. Furthermore, since the taping terminals are connected at the connecting ends, the accuracy of the distance P between the taping terminals can be improved, and therefore the mounting accuracy can be improved.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a radial taping electronic component according to an embodiment of the present invention, FIG. 2 is a partial perspective view of a taping terminal fixing part of the radial taping electronic component, and FIG. 3 is a front view of the radial taping electronic component. Figures 4 and 5 are perspective views illustrating the installation of taping terminals, respectively.
Figure 6 is a perspective view of a conventional radial taping electronic component.
FIG. 7 is a partial perspective view of a taping terminal fixing portion of the conventional radial taping electronic component, and FIG. 8 is a front view of the conventional radial taping electronic component. 11... Electronic component, 11a... Board mounting bottom surface, 11
b. 11c...hole, 12...terminal, 13...taping terminal, 13a. 13b...open end, 13c...direct connection end, 14...
Base tape, 15...adhesive tape.

Claims (1)

[Claims] 1. Two holes are made at a predetermined distance P at a position different from the protruding parts of the terminals on the center line of the bottom surface of the board mounting surface of the electronic component from which multiple terminals protrude, and the sides of the metal wires are parallel to each other. and approximately U with a distance equal to the predetermined distance P.
A taping terminal is provided which is bent into a letter shape and whose open end is vertically implanted in the bottom surface through the hole, and electronic components are arranged at a predetermined pitch on the connecting end of the taping terminal in a tape-like body. Radial taping electronic components installed like this.