JPS60137090A - Method of mounting 2-terminal electronic part on printed circuit board - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for mounting a two-terminal electronic component in a printed wiring board, and particularly to a method for mounting a small two-terminal electronic component that has a columnar outer shape and has electrical conductor portions at both ends thereof. Regarding the method.

In recent years, the mounting density of electronic components on printed wiring boards (hereinafter referred to as printed circuit boards) has become increasingly dense as electronic devices become smaller and cheaper.

Especially small two-terminal electronic components such as capacitors, inductances, and diodes (hereinafter referred to as chip components).
By eliminating the conventional terminal wires using linear members and adopting a configuration in which all chip components are directly mounted and connected to the printed circuit board, as shown in Figure 1, even higher density mounting is possible. It's becoming like that. That is, the first
As shown in the figure, the chip component 1b has an external shape of a square prism, and the terminal portions 1.6a and 16b at both ends thereof are electrically connected to wirings #14 and 15 provided on the printed circuit board 12. It is made up of the body.

Terminal portions 16a and 16b are provided on one cover group &12.
Printed wiring 14 and 15 parallel to each other at equal intervals between
are provided, and the extended portions of printed wiring 14 and 15 are connected to a predetermined circuit. Therefore, the chip component 16 is assembled by mounting the terminal portion 16a on the printed wiring 14 and the terminal portion 16b on the printed wiring 15 and contacting them (reference number 16') by soldering their contact portions. A means of mounting the component 16 on the printed circuit board 12 is used.

Conventional means for mounting chip components as described above.

Due to the necessity of mounting the chip components on the printed circuit board, it is not possible to narrow the distance between the chip components by 90 degrees, so there is a limit to increasing the mounting density, and it is difficult to position the 1ft chip components on the printed circuit board.

The disadvantage is that it is difficult to increase work efficiency.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an improved method for mounting chip components on a printed wiring board, which can increase the mounting density of chip components and improve work efficiency.

The uninvented method for attaching two-terminal electronic components to a printed concept board is as follows:
A hole for inserting an electronic component is provided in the printed wiring board, and an electric conductor is printed and wired around the hole for inserting the electronic component on both sides of the printed wiring board, and the electrical conductor has a columnar outer shape and the height thereof is equal to that of the printed wiring. A two-terminal electronic component whose planar shape is the same as the plate and has the same dimension tl as the electronic component insertion hole, and whose both ends are formed of an electrical conductor, is inserted into the electronic component insertion hole. and connecting the electric conductor around the electronic component insertion hole and both ends of the two-terminal electronic component by soldering to attach the two-terminal electronic component to the printed wiring board. Ru.

The present invention will be described in detail below with reference to the drawings.

FIG. 2 is a perspective view showing an embodiment of the present invention.

As shown in the figure, the chip component 6 has a cylindrical outer shape, and terminal portions 6a and 6b at both ends thereof are made of electrical conductors. On the other hand, a hole 3 having the same diameter as the chip component 6 is provided in the printed circuit board &2. At the outer periphery of this hole 3, annular printed wirings 4 and 5 are provided on both the upper and lower surfaces of the printed circuit board 2. ing. Print layout IM4
The extension portions 4a and 5a of 5 and 5 are respectively connected to predetermined circuits. Note that the height of the chip component 6 is the same as the thickness of the printed circuit board 2.

Therefore, the work of mounting the chip component 6t onto the printed circuit board 2 is to insert it into the hole 3 of the chip component 6' as shown in FIG.
y so that they are on the same plane, and the printed wiring 4 and the terminal part 6a, the printed wiring 1fpJ5 and the terminal part 6b
This is done by soldering using solder 7.

Although the above-mentioned embodiment is a case in which the cross-sectional shape (2) of the chip component is circular, the present invention is not limited to the chip component having a circular 111-sided shape as described above, and an example is shown in FIG. There is no problem if the blood has a rectangular shape or other shapes. However, it is extremely clear that the circular cross-section allows the chip component to be inserted in any direction, and therefore has much better work efficiency than those with other shapes.

As is clear from the above description, the method for mounting two-terminal electronic components onto a printed wiring board of the present invention allows the mounting distance of chip components to be placed close to the printed wiring board to the limit of the spacing allowed by the printed wiring. This has the advantage that the mounting density of chip components can be increased. In addition, positioning for mounting chip components is extremely easy, especially when the external shape is cylindrical, the mounting work efficiency is extremely excellent, and it also has the advantage of being easy to automate. . Also in history, the I
By changing the cross-sectional shape and size according to the AI type! 7 (for example, change the diameter depending on the condition of the container/sun),
It also has the advantage of being able to prevent incorrect insertion.

One no

[Brief Description of the Drawings] Figure m1 is a perspective view showing an example of a conventional mounting method for chip components, Figure 2 is a perspective view showing an embodiment of the present invention, FIG. In fig. 2... Printed circuit board, 3... Hole% 4
．． 5...Print distribution #! 16... Chip parts, 7... Good luck. Figure 1

Claims (1)

[Claims] A hole for inserting an electronic component is provided in a printed wiring board, and an electrical conductor is printed and wired around the hole for inserting an electronic component on both sides of the printed wiring board. The planar shape of the #1 electronic component insertion hole is the same as that of the plate, and the two-terminal electronic component whose both ends are made of electrical and gas conductors is used as the electronic component. The two-terminal electronic component is inserted into the insertion hole, and the two-terminal electronic component is mounted on the printing distribution board by connecting the electric conductor around the electronic component insertion hole and both ends of the two-terminal electronic component by soldering. Contains t%-signs and 1-2' to a printed wiring board.
#C attachment method for 1jli child electronic parts.