JPS6210936Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has a terminal part that is directly fixed to a printed circuit board, etc., and the pitch of the terminal part is substantially reduced to prevent adjacent terminal parts from being short-circuited by soldering etc. Concerning a connector that can be expanded to.

As electronic devices have become smaller in recent years, the connectors used in these devices have also tended to become smaller.

In particular, in connectors in which a large number of pins are installed in a row in the connector body, the pitch between each pin becomes even narrower. The terminal part of the pin is directly fixed to the conductor part on the printed circuit board by soldering, but there is a risk of short-circuiting between adjacent terminals due to melted solder during soldering. There is.

Therefore, the pitch of the pins cannot be made extremely narrow, and there is a limit to the miniaturization of the connector.

Although the above description has been made regarding a plug-side connector in which a plurality of pins are implanted, the same can be said of a socket-side connector that is plug-connected to the plug-side connector.

In the socket side connector, contacts corresponding to each pin of the plug side connector are attached to the connector body in the same arrangement as the pins of the plug side connector, and when this type of socket side connector is directly attached to a printed circuit board. In this case, each terminal portion of the contact is directly fixed to the conductor portion on the printed circuit board by soldering or the like, and this causes the same problem as the above-mentioned plug-side connector.

The present invention was developed in view of these circumstances, and it is possible to substantially expand the pitch between the terminal parts of pins or contacts that are fixed to a printed circuit board, etc. by soldering. There is no risk that adjacent terminal portions will be short-circuited by solder during soldering, and it is possible to provide a connector that can be manufactured more compactly than conventional connectors.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 3.

In the figure, reference numeral 24 denotes a plug side connector that is attached to a printed circuit board, and a plurality of pins are implanted at predetermined pitch intervals in a connector main body 21 that is integrally formed of synthetic resin or the like by insert molding. . Two types of pins with different shapes of terminal parts are used, and one of the pins 20 has a terminal part 20a integrally protruding from the base end of the pin 20 in a right angle direction as shown in FIG. It is L-shaped, and the terminal portions 20a of the adjacent pins 20 are connected to both side surfaces 21a and 21b of the connector body 21.
The two protrude from each other in opposite directions.

The other pin 22 has a plate-shaped terminal portion 22b having a cut groove 22a in the center on its base end side.
This terminal portion 22b has a length that extends through the printed circuit board 23 and projects from the bottom surface portion 21c of the connector main body portion 21.

Further, the pin 22 is the two pins 20, 20.
These pins 22 are located on both sides of the narrow side, and this pin 22 is arranged every third pin in a row.

23 is a printed circuit board on which the connector 24 is attached, and the terminal portion 2 of the pin 20 is provided on the surface of the printed circuit board.
0a... are provided, and conductor portions 27... are provided on the back side to which the terminal portions 22b of the pins 22 are connected.

A through hole 28 is provided in the printed circuit board 23 integrally with the conductor portion 27, and the terminal portion 22b of the pin 22 on the connector 24 side is press-fitted into the through hole 28 and the conductor portion is connected by soldering. 27... is fixed.

In addition, fitting grooves 9, 9 are provided in the holder parts 8, 8, which are integrally provided at both ends of the connector main body part 21, to fit into the fitting protrusions of the socket side connector (not shown). Engagement recesses 10, 10 that engage with engagement protrusions (not shown) are provided.

According to such a configuration, each terminal portion 20a of the pin 20 and each terminal portion 22b of the pin 22 are connected to three of the pitches of each pin 20, 22 from both side portions 21a, 21b and bottom surface portion 21c of the connector body portion 21, respectively.
Since these terminal portions 20a and 22 protrude at an interval equivalent to twice that of the
The distance between the conductor parts 26 and the conductor parts 27 on the printed circuit board 23 side to which b is connected can be increased, and the solder that melts during soldering allows each terminal to be There is no risk of short circuits occurring between the section 20a and each terminal section 22b or between the conductor section 26 and conductor section 27, and the pin pitch can be narrowed, resulting in a smaller size. This makes it possible to manufacture connectors that are

Although the above embodiment has been described with respect to a plug-side connector, it is also possible to implement the socket-side connector connected to this plug-side connector, and the terminals of each contact connected to each pin of the plug-side connector. The structure may be as shown in each of the above embodiments.

As detailed above, according to the present invention, two types of pins or contacts with different terminal part shapes are used, and the terminal part of one type of pin or contact penetrates the printed circuit board and protrudes from the bottom surface, while the other type By bringing the terminal parts of the pins or contacts into contact with the top surface of the printed circuit board, these terminal parts can be distributed to both sides of the printed circuit board and soldered separately, so the arrangement pitch of the pins or contacts in the connector body can be adjusted. Even if the spacing is narrow, the actual soldering pitch spacing on each of the top and bottom surfaces of the printed circuit board is wide, and especially on the bottom side, the spacing can be more than three times the pitch spacing. The occurrence of short-circuit failures can be effectively avoided on both sides.

Also, even if the pitch between the pins or contacts in the connector body is narrow and there are many pins or contacts installed, the pins or contacts will be distributed between the top and bottom surfaces of the printed circuit board, so they should be soldered on each surface. The number of terminals is drastically reduced, making the soldering work easier, and the occurrence of short-circuit failures can be further reliably eliminated in terms of workability.

Furthermore, the terminal portion penetrating the printed circuit board not only helps determine the mounting position of the connector with respect to the printed circuit board, but also improves the mounting strength, and is useful from this point of view as well.

[Brief explanation of the drawing]

1 and 2 are an erect perspective view and an inverted perspective view showing an embodiment of the connector of the present invention, and FIG. 3 is a perspective view of a pin of the same embodiment. 20...Pin, 20a...Terminal part, 21...Connector body part, 21a, 21b...Side part, 22
...Pin, 22b...Terminal part, 21c...Bottom part, 23...Printed circuit board.

Claims (1)

[Scope of utility model registration request] A connector in which a plurality of pins or contacts connected to the pins are attached to the connector main body at a predetermined pitch, and the shape of the terminal part, which is fixed to a printed circuit board etc. by soldering, is different2. A type of pin or contact is used, and the terminal portion of the type of pin or contact protrudes from the bottom surface of the connector main body with a length that penetrates the printed circuit board, etc. The terminals of pins or contacts of other types are L-shaped so that adjacent terminals of the other types protrude in opposite directions from the sides of the connector main body. 1. A connector which is bent and connected to a conductor portion on the surface of a printed circuit board, etc., characterized in that at least two terminal portions of another type are arranged between adjacent terminal portions of one type.