JPS62254490A - Method of connecting printed circuits - 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] [Field of Industrial Application] The present invention relates to a method of connecting printed circuit boards, and in particular, connects a female electrode to one printed circuit board and a male electrode to the other printed circuit board. The present invention relates to a method for connecting printed circuit boards in which a male electrode is vertically inserted and erected directly into a female electrode to perform a strip line connection between printed circuit boards.

[Conventional technology]

2. Description of the Related Art Conventionally, for example, there is a method of connecting boards of strip lines such as a matrix switch unit of a transmission line switching device through a connector as shown in FIGS. 9 and 10. FIG. 9 shows a printed circuit board 50 and a printed circuit board 51 via a printed circuit board connector 56.
This is what connects them. Figure 10 shows a printed circuit board 50 and a printed circuit board 51 connected to a male coaxial connector 5.
2 and a female-type exclusive coaxial connector 53 are fitted. Second, there is a method of wiring using cables as shown in FIG. This uses a coaxial cable 54 to connect a printed circuit board 50 and a printed circuit board 51, and terminal processing fittings 5 are attached to both ends of the coaxial cable 54.
5 is provided, and the connection is made by the metal fittings 55.

Thirdly, a method of directly soldering the board has been used.

[Problem that the invention seeks to solve]

However, in the first and second conventional methods, since the electrodes between multiple printed circuit boards are connected via connectors or cables, the connectors and cables have a negative effect on high frequency characteristics. Or, if there are more connection points when connecting via cables,
There are problems in that assembly time is required, component prices are increased, and mounting efficiency is decreased.

Furthermore, in the third conventional method, since the electrodes between the plurality of printed circuit boards are connected by soldering, there is a problem in that solder dipping is not possible.

Even if it were possible to solder the surface of the mounted component, it would be impossible to connect to the back surface (pattern surface) of the printed circuit board, resulting in poor workability and impractical problems.

(Means and effects for solving the problems) The present invention has the following features:
This was done in view of the above, and in order to eliminate the negative effect on high frequency characteristics, shorten assembly time, reduce component costs, and further improve workability, the female side electrode is attached to one printed M board. A connection method between printed circuit boards in which a male electrode section is provided for each printed circuit board, and the male electrode section is directly inserted and connected to the female electrode section, thereby making a strip line connection between the printed circuit boards. This is what we provide.

〔Example〕

Hereinafter, a method for connecting printed circuit boards according to the present invention will be explained in detail based on the accompanying drawings.

Figure 1 (A), (0), and (C) show the structure of the male side electrode provided on the printed circuit board l, and as shown in Figure 1 (a), is provided with three hot patterns 2 having a predetermined width, and as shown in FIG. A stripline plug electrode is configured in pair with the hot pattern. FIG. 1(c) is a vertical cross-sectional explanatory view of FIG. 1((), (0)).

Next, FIGS. 2(a), (0), and (c) show the structure of the female side electrode provided on the printed circuit board 1, in which a through hole 4 is provided, and as shown in FIG. 2(a), Three hot patterns 5 and a ground pattern 6 are provided on one side of the printed circuit board 1 through a through hole 4, and as shown in FIG. There is a hot pattern 5 continuing from the print on the surface, and a ground pattern 6 continuing from said one surface constitutes a stripline through-hole electrode. FIG. 2(c) is a vertical cross-sectional explanatory view of FIG. 2((), (TI)).

FIG. 3 shows the manufacturing process up to forming female electrodes on the printed circuit board shown in FIG. 2. First, as shown in FIG. 3 (a), one side of the printed circuit board 1 is Strip line patterns 5 and 6 are generated on the surface, and secondly, as shown in FIG. 3(o), holes such as through holes 4 are processed using a drill or the like. Thirdly, as shown in FIG. 3(c), a through-hole electrode 8 is created to connect one surface and the other surface, and fourthly, as shown in FIG. 3(d), a drill etc. The strip line pattern 5 is separated into three electrodes (FIG. 3 C*)).

A matrix switch circuit of, for example, a transmission line network switching device, to which the printed circuit board connection method with the above configuration is applied, will be specifically described. For example, if you attempt to realize a matrix switch circuit as shown in Figure 4 using the high frequency relays shown in Figures 5 (<) and (0), the configuration will be as shown in Figure 6 (solid line in Figure 6). is the X direction, and the dotted line is the strip line in the X direction).

In order to concretely realize such a matrix switch circuit, as shown in FIG. 1O is required. ), as shown in FIG. 7(a), a relay in the X direction is configured as the main printed circuit board 11. Here, the sub-printed i-board 10 and the main printed board 11
The present invention is applied as a means for connecting strip lines. That is, by inserting and connecting the real pattern 12 of the sub printed circuit board 10 so as to contact the hot pattern 15 of the main printed circuit board 11, and performing soldering from the pattern surface of the main printed circuit board 11, the main printed circuit board 11 and the sub printed circuit board lO are connected. The strip line can be effectively joined.

However, here, strip line hot pattern 15
For convenience of signal flow, two sets of ground patterns 16 and 16 are provided alternately as shown in FIG. 7(b).

FIG. 8 is an external perspective view of the matrix switch constructed by the above assembly, in which the sub-printed boards 10 are arranged vertically at predetermined intervals on the main printed board 11, and the male electrodes of the sub-printed boards 10 and the main printed board 11 are arranged vertically. Fixed connection is made by insertion and connection with the female side electrode. Three sets of relays 14 are provided on the surfaces of the three sub-printed boards 10 on which components are mounted.

It goes without saying that the present invention is not limited to the embodiments described above, but can be applied to other embodiments.

〔Effect of the invention〕

As explained above, in the method of connecting printed circuit boards according to the present invention, a female electrode section is provided on one printed circuit board, a male electrode section is provided on the other printed circuit board, and a female electrode section is provided on the other printed circuit board. Since the male side electrode part is directly inserted and connected to connect stripline printed circuit boards, it eliminates any negative effects on high frequency characteristics, shortens assembly time, reduces component costs, and further improves workability. can.

[Brief explanation of drawings]

FIGS. 1(a), 1(o), and 1(c) are explanatory diagrams showing the structure of the male side electrode provided on the printed circuit board according to the present invention,
2(()(U)(C)) are explanatory diagrams showing the structure of the female side electrode provided on the printed circuit board according to the present invention,
Figure 3 (A') (El) (C) (D) (N) are explanatory diagrams showing the manufacturing process of the female side electrode according to the present invention, and Figure 4 is a wiring diagram of a matrix switch circuit to which the present invention is applied. 5(A) and 5(U) are explanatory diagrams of the high frequency relay used in the present invention, and FIG. 6 is an explanatory diagram showing the specific configuration of the matrix switch circuit shown in FIG. 4. 7(()(D)) and FIG. 8 are explanatory diagrams showing the configuration when the present invention is applied to the matrix switch circuit of FIG. 4, and FIGS. Fig. 11 is an explanatory diagram showing a conventional method of connecting printed circuit boards.Explanation of symbols 1...Printed board, 2.5...Hot pattern, 3.6...Earth pattern, 4. ...Through hole, 10...Sub printed circuit board, 11...Main printed circuit board.Patent applicant: Toyo Tsushinki Co., Ltd. Agent, Patent attorney: Shin Matsubara 2 Same person: Same person Seiji Muraki same person Same person Atsushi Ueshima - Same person Hiroaki Sakai Figure 1 Figure 3 Figure 4 Figure 6 Figure 5 Figure 7 t Ino z t Rono Figure 10

Claims (1)

[Claims] In a method for connecting a plurality of printed circuit boards having high-frequency conductive patterns using strip lines, a female electrode section is provided in the through hole of the printed circuit board, and a male electrode section is provided on the outer periphery of the printed circuit board to be connected. A method for connecting printed circuit boards, comprising: providing a connection between the strip lines by directly inserting and connecting the male electrode section to the female electrode section.