JPH0140132Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a terminal connection structure, and more particularly, to a terminal connection structure of a housing substrate formed using a housing as a substrate.

FIG. 1 is a sectional view showing a connection structure of terminals 1 and 2 according to a certain prior art. Terminals 1 and 2 are formed on metal housing substrates 3 and 4, respectively, with electrical insulating layers 5 and 6 interposed therebetween. Terminals 1 and 2 are electrically connected via a flexible substrate 7. The flexible substrate 7 and the terminals 1 and 2 are connected to each other by a conductive connecting material 8 that is highly fusion bondable, such as solder.
It is further reinforced with adhesive. In the terminals 1 and 2 having such a connection structure, the housing substrates 3 and 4
The problem is that it can be easily removed.

FIG. 2 is a sectional view showing a connection structure of terminals 1 and 2 according to another prior art. The terminals 1 and 2 are placed in positions facing each other via a connecting material 27 made of conductive rubber, and are pressed from the top and bottom of FIG. 2 as shown by the arrow 28 to electrically connect them. be done. Terminal 1 having such a connection structure,
2, the contact resistance is high and it is difficult to align the terminals 1 and 2 accurately.

The purpose of the present invention is to solve the technical problems of the prior art, improve the workability of connecting terminals provided on the board formed in the casing, and improve the reliability of the connection. An object of the present invention is to provide a connection structure for terminals of a housing board.

The present invention provides a terminal connection structure for a first housing board and a second housing board that have printed wiring on their inner surfaces and are combined in substantially orthogonal directions to form an electronic component storage box by integrally joining them. , the first casing board is bent outward at right angles so that a part of the inner surface thereof faces outward, and has a first terminal that abuts the inner surface of the second casing board; a fitting claw that comes into contact with the outer peripheral surface of the second housing board and cooperates with the first connecting part to sandwich the second housing board; the second housing board is connected to the first connecting part; A second terminal that comes into contact with the first terminal when bonded to the inner surface of the corresponding part.
This is a terminal connection structure of a housing board, characterized by including a second connection portion having a terminal.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 is a perspective view of an embodiment of the present invention;
4 is an exploded perspective view of the section of FIG. 3, and FIG. 5 is a sectional view taken along the section line - of FIG. 4. Electronic parts storage box 9 such as Chuna
The first housing substrate 10 and the second housing substrate 11 are integrally fixed. The housing substrates 10 and 11 are made of metal, and printed wiring is provided on their respective inner surfaces 11a and 11a via electrical insulating layers 12 and 13, respectively. Surface-mount electronic components 14 are attached to appropriate positions on this printed wiring.
Therefore, these housing boards 10 and 11 constitute a printed circuit board.

A groove 15 is formed in the center of the first housing substrate 10 and extends in the left-right direction in FIG.
One end (the right end in FIG. 4) is bent upward in FIG. 4 at a substantially right angle so that the inner surface 10a faces outward to form a first connecting portion 16. One or more first terminals 17 are formed in this first connection portion 16 with the electrical insulating layer 12 interposed therebetween. Approximately L-shaped fitting claws 18 and 19 are connected to the first housing substrate 10 on both sides of the first connecting portion 16 (upper and lower sides in FIG. 4).

The inner surface 11a of the second housing board 11 has the first
A second connection portion 21 having a second terminal 20 is formed at a position corresponding to the first terminal 17 of the housing substrate 10 . The thickness of the second housing substrate 11 is formed to match the distance D between the connecting portion and the fitting claws 18 and 19. Therefore, the second housing board 11 is aligned using fitting claws (not shown) provided on both sides of the first housing board 10 (portions perpendicular to the plane of the paper in FIG. 5). The second housing board 11 is connected to the first housing board by the fitting claws 18 and 19 formed on the first housing board 10.
When the first terminal 17 is fixedly fitted in a position to be assembled in a substantially perpendicular direction on the housing substrate 110, the first terminal 17
and the second terminal 20 are in contact with each other and are electrically connected. Note that the surfaces of the first terminal 17 and the second terminal 20 are plated with gold or tin.

In the above embodiment, the first terminal 17 and the second terminal 2
0, a second
Although the housing substrate 11 is fitted, in other embodiments of the present invention, the fitting pawl 1 is used as an auxiliary engagement means.
In addition to steps 8 and 19, screw tightening or caulking may be used in combination.

As described above, according to the present invention, the first housing board holds the second housing board between the first connecting portion and the fitting claw, so that the first terminal and the second terminal are electrically connected to each other. Since the first housing board and the second
The housing board is easy to attach and detach, and the positioning is simple, which improves work efficiency, and since the first and second terminals are in direct contact, contact resistance is low, which increases reliability. It is possible to obtain an electrical connection with improved performance.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a connection structure of a certain prior art, Fig. 2 is a sectional view showing a connection structure of another prior art, Fig. 3 is a perspective view showing an embodiment of the present invention, and Fig. 4 is a sectional view showing a connection structure of a certain prior art. is an exploded perspective view of the section in Figure 3;
The figure is a sectional view taken along the section line - in FIG. 4. DESCRIPTION OF SYMBOLS 10...First casing board, 10a...Inner surface of first casing board, 11...Second casing board, 11a...Inner surface of second casing board, 12, 13...Electrical insulating layer,
14...Electronic component, 15...Concave groove, 16...First
Connection part, 17...first terminal, 18, 19...fitting claw, 20...second terminal, 21...second connection part.

Claims (1)

[Claims for Utility Model Registration] A first casing board and a second casing board that have printed wiring on their inner surfaces and that are combined in substantially orthogonal directions to form an electronic component storage box by integrally joining them. In the terminal connection structure, the first casing board has a first terminal that is bent outward at right angles so that a part of the inner surface faces outward, and abuts on the inner surface of the second casing board. a connecting portion; and a fitting claw that comes into contact with the outer circumferential surface of the second housing substrate and cooperates with the first connecting portion to sandwich the second housing substrate; A second terminal that comes into contact with the first terminal during bonding is attached to the inner surface of the part corresponding to the first connection part.
1. A terminal connection structure for a housing board, comprising a second connection portion having a terminal.