JP2540735Y2 - connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector, and more particularly, to a connector which is surface-mounted on a printed circuit board or the like housed in an electronic device.

[0002]

2. Description of the Related Art FIG.
The ones shown in (a) and (b) are known. That is, FIG.
Is a pin connector 8 in which one ends of a plurality of contacts 82 are arranged in a horizontal line in an opening 811 formed in an insulator 81 having a concave portion 812 serving as a polarity key when fitted with a mating connector. ing. The other ends of these contacts 82 are located on the back side of the insulator 81 in the drawing. FIG. 7B shows a mating socket connector 9 connected to the pin connector 1.
One end of each of the plurality of contacts 92 is housed in a plurality of small holes 911 formed in the insulator 91 provided with the convex portion 912 corresponding to the concave portion 812. The other ends of the contacts 92 extend behind the insulator 91.

[0005] On both sides of the pin connector 8 and the socket connector 9, holddowns 10 for fixing the connector during surface mounting on a printed circuit board or the like are provided, respectively. The hold-down 10 is formed in a substantially L-shaped bent shape, and has a forked locking piece 101 at one end thereof.
Is formed, and a flat portion 102 to be soldered to a pattern (land) on the printed board is formed at the other end, which is a mounting section on the printed board. And
The bifurcated locking piece 101 is cut into the ridges 813, 913 or the grooves 814 provided on the side surface of the connector,
Holddown 10 is attached to the connector.

[0004]

However, in the conventional connector having the above structure, the mounting portion of the holddown protrudes outward from the side surface of the insulator. For this reason, the projected area of the connector on the board in a state where the connector is surface-mounted on the printed board is increased by that much,
This is an obstacle to high-density mounting of electronic components on a printed circuit board accompanying the improvement of functions and miniaturization of electronic devices.

Further, when a large number of connectors are stored in a stick carrier or the like for packing or the like, the hold downs of adjacent connectors overlap each other, so that the connectors are stuck in the stick carrier and do not flow. There is a problem that the holddown is deformed by an external force.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a connector in which a hold-down mounting portion does not protrude outside a side surface of an insulator.

[0007]

According to the present invention, there is provided a connector in which an insulator provided with a contact is provided with a holddown for fixing a connector, a groove is formed in a bottom surface near a side surface of the insulator, and the side surface is formed. Is provided with a cut-out portion extending to the bottom surface, the hold-down is bent in a substantially L-shape, and one side of the bent portion of the hold-down is inserted into the groove to be held. A connector is obtained wherein the other side portion of the curved portion extends along the bottom surface of the insulator and terminates in a range facing the cutout but not protruding outward from the side surface.

[0008]

The hold-down is mounted on the side bottom surface of the insulator (the surface on which the hold-down is mounted on the printed circuit board) as described above, so that the other end of the hold-down mounted portion on the printed circuit board or the like has a side surface of the insulator. From the outside. Therefore, the projected area of the connector on the board is reduced, and a connector suitable for high-density mounting of electronic components on the board is obtained. Further, when the connectors are housed in a stick carrier or the like, the holddowns of the adjacent connectors do not overlap each other, and the clogging of the connectors and the prevention of the flowdown or the deformation of the holddown are reliably prevented. Furthermore, if the upper surface of the other end of the holddown (the mounting portion on the printed circuit board) is exposed from the cutout provided on the side surface of the insulator, the cream solder is reflowed by infrared rays or the like, and the holddown is placed on the printed circuit board. When surface mounting is performed, infrared heat can be efficiently applied to the other end, so that holddown and soldering to a pattern on a printed circuit board can be reliably performed.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below. Fig. 1 (a),
The pin connector 1 of the embodiment shown in (b) is provided on an insulator 11, a plurality of contacts 12 respectively mounted on a plurality of slit-shaped openings formed on the back surface of the insulator 11, and on both sides of the insulator 11. And a holddown 3 for fixing the connector.

The insulator 11 has an opening 111 on the front surface for fitting with a mating connector. The opening 111 is provided with an erroneous insertion prevention groove 115 serving as a polarity key at the time of the fitting on both sides, and has a shape having a large upper side in the figure. In this opening 111, substantially straight ends 121 of the plurality of contacts 12 are arranged in a horizontal row. The substantially L-shaped other end 122 of the contact 12 is located on the back side of the insulator 11 as shown in FIG.

On the bottom surface on both sides of the insulator 11, grooves 112 having an appropriate depth are formed.
One end 31 of the above-mentioned hold-down 3 bent substantially in an L-shape is fitted into these grooves 112 by press-fitting from the connector fitting side as shown by an arrow. FIG. 3 shows a state in which a side portion of the insulator 11 is partially cut away.
2 is located substantially parallel to the bottom surface of the insulator 11.

On the side surfaces 113 on both sides of the insulator 11, cutout portions 114 are formed from the lower portion of the insulator to the bottom surface, each having a gradually deeper cut on the bottom surface side. Then, the upper surface of the other end portion 32 of the hold-down 3 is exposed by the notch portion 113.

FIG. 4 shows a mating socket connector 2 connected to the pin connector 1. As shown in FIG. The socket connector 2 includes an insulator 21 and a plurality of contacts 22 respectively mounted in a plurality of openings 211 formed from the upper surface to the lower surface of the insulator 21.
Consists of

On both sides of the insulator 21, an erroneous insertion preventing projection 211 having a shape corresponding to the erroneous insertion preventing groove 115 is provided.
In addition, positioning bosses 213 for positioning the pin connector 1 when mounting the pin connector 1 on a printed circuit board are formed on the bottom thereof. On the other hand, as shown in FIG. 5, the contact 22 has a substantially L-shape, and has a forked end 221 inserted into the opening 211, and the other end 222 on the bottom side of the insulator 21. The contact is alternately projected forward or rearward so as to be alternate between adjacent contacts 22.

FIG. 6 shows a state in which the pin connector 1 and the socket connector 2 described above are each surface-mounted on a printed circuit board 5, and these surface-mounted connectors are fitted and connected. That is, in the case of the pin connector 1, the other end 32 of the hold-down 3 on both sides of the insulator 11 is fixed by soldering to a pattern formed on the printed board 5, and the other end 122 of the contact 12 is mounted on the board. Connect by soldering to an appropriate pattern. In the case of the socket connector 2, the positioning boss 213 is aligned with the concave portion 51 formed on the printed board 5, and in this state, the other end 222 of the contact 22 is soldered and connected to an appropriate pattern on the board. In this state, the socket connector 2 is fitted into the opening 111 of the pin connector 1, and the contacts 12 and 2 of these connectors are fitted.
2 are connected to each other.

[0016]

[Effects of the Invention] As described above, according to the present invention, the insurance
In the groove formed on the bottom of the
Insert one side part and beside the bent part of the hold down
Before extending the side part along the bottom of the insulator
Because it is terminated in a range that does not protrude outward from the side surface , the other side portion, which is a mounting portion on a printed circuit board, does not protrude outward from the side surface of the insulator.
Holddown increases connector projected area on board
It is no longer necessary, and a connector suitable for high-density mounting can be obtained. Further, when the connector is stored in a stick carrier or the like, it is possible to reliably prevent the connector from clogging and preventing the connector from flowing and the holddown from being deformed.

In addition, the side of the insulator reaches the bottom.
Notch, and hold down the cutout
The top surface is exposed by facing the other side of
Because you are made the other side portion to easily be soldered by reflow by infrared, follow
Insert the holddown into the groove on the bottom of the insulator.
In spite of adopting the configuration of holding down, the solderability of the hold down is not impaired.

[Brief description of the drawings]

1A is an exploded perspective view of a connector according to an embodiment of the present invention, and FIG.

FIG. 2 is a sectional view taken along line AA in FIG. 1 (b).

FIG. 3 is an enlarged view of only a main part of the connector of FIG. 1;

FIG. 4 is a perspective view of a mating connector of the connector of FIG. 1;

FIG. 5 is a sectional view taken along line BB in FIG. 4;

6 is an explanatory diagram of a state where the connector of FIG. 1 and the connector of FIG. 4 are fitted.

FIG. 7 (a) is a perspective view of a conventional pin connector, and FIG. 7 (b) is a perspective view of the same socket connector.

[Explanation of symbols]

 1 pin connector 2 socket connector 3 hold down 5 printed circuit board 11,21 insulator 12,22 contact

Claims (1)

(57) [Scope of request for utility model registration] 1. A connector in which an insulator provided with a contact is provided with a holddown for fixing a connector, a groove is formed in a bottom surface near a side surface of the insulator, and a cutout portion reaching the bottom surface is formed in the side surface. The hold down is formed in a substantially L-shaped bent shape,
Insert one side of the bent part of the hold down into the groove
It is held by a feature in that the other side portion of the bent portion of the hold-down is extended along the bottom surface of the insulator facing the cutout portion but which is terminated within a range that does not protrude from the side face outwardly Connector to be.