JPH0533464U - connector - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a connector in which a mounting portion of a holddown with a printed circuit board does not project to the outside of a side surface of an insulator. [Structure] A connector that is surface-mounted on a printed circuit board or the like, and has holddowns 3 for fixing the connector provided on both sides of an insulator 21. Holddown is approximately L
One of the hold-down ends 31 is mounted in a groove 112 formed in the bottom surface of the side of the insulator.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector, and more particularly, to a connector surface-mounted on a printed board or the like housed inside an electronic device.

[0002]

[Prior Art]

 As this type of connector, for example, the connectors shown in FIGS. 7 (a) and 7 (b) are known. That is, FIG. 7A shows a pin connector 8 having a plurality of contacts 82 in an opening 811 formed in an insulator 81 provided with a recess 812 that serves as a polar key when mating with a mating connector. Are arranged in a horizontal row. The other ends of these contacts 82 are located on the back side of the insulator 81 in the drawing. Further, FIG. 7 (b) shows a mating socket connector 9 connected to the pin connector 1, in which a plurality of small holes 911 formed in the insulator 91 having a convex portion 912 corresponding to the concave portion 812 are provided. One end of the contact 92 is stored. The other ends of these contacts 92 extend to the back side of the insulator 91.

Hold-downs 10 are provided on both sides of the pin connector 8 and the socket connector 9 for fixing the connector at the time of surface mounting on a printed circuit board or the like. The holddown 10 is formed into a substantially L-shape and has a bifurcated locking piece 101 formed at one end thereof, and the other end which is a mounting portion on a printed circuit board. , A flat portion 102 to be soldered to a pattern (land) on the printed circuit board is formed. The holddown 10 is attached to the connector by engaging the above-mentioned bifurcated locking piece 101 with the protrusions 813, 913 or the groove 814 provided on the side surface of the connector.

[0004]

[Problems to be solved by the device]

 However, in the conventional connector having the above-mentioned configuration, the mount-down mounting portion projects outward from the side surface of the insulator. As a result, the projected area of the connector on the board in the state where the connector is surface-mounted on the printed board is increased by this amount, and this results in a high density of electronic components on the printed board due to improvements in the functions of electronic devices and miniaturization. It becomes an obstacle to implementation.

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

Therefore, an object of the present invention is to provide a connector in which the mounting portion of the holddown does not project outside the side surface of the insulator.

[0007]

[Means for Solving the Problems]

 According to the present invention, in a connector in which a holddown for fixing a connector is provided on both sides of an insulator having a contact, a groove formed in a side bottom surface of the insulator is bent into a substantially L shape. A connector characterized by having one end of the holddown attached is obtained.

[0008]

[Action]

 By mounting the holddown on the side bottom surface of the insulator (mounting surface of the holddown on the printed circuit board) as described above, the other end, which is the mounting part of the holddown on the printed circuit board, is located outside the side surface of the insulator. No longer sticks out. Therefore, the projected area of the connector on the board becomes small, and a connector suitable for high-density mounting of electronic components on the board can be obtained. Further, when the connectors are stored in a stick carrier or the like, the holddowns of the adjacent connectors do not overlap with each other, and it is possible to reliably prevent the connectors from clogging and prevent the holddowns from deforming. Furthermore, if the upper surface of the other end of the holddown (mounting part to the printed circuit board) is exposed from the notch provided on the side surface of the insulator, the cream solder is reflowed by an external wire or the like to hold down the printed circuit board. Infrared heat can be efficiently applied to the other end when surface mounting on top, and holddown and soldering with the pattern on the printed circuit board can be performed reliably.

[0009]

【Example】

 An embodiment of the present invention will be described below. The pin connector 1 of the embodiment shown in FIGS. 1 (a) and 1 (b) includes an insulator 11, a plurality of contacts 12 mounted in a plurality of slit-shaped openings formed on the back surface of the insulator 11, and It is composed of hold-downs 3 provided on both sides of the insulator 11 for fixing the connector.

The insulator 11 has an opening 111 formed on the front surface for fitting with a mating connector. The opening 111 has a shape in which the upper side in the drawing is large, with erroneous insertion preventing grooves 115 serving as a polar key at the time of this fitting provided on both sides. Further, in the opening 111, the substantially linear one ends 121 of the plurality of contacts 12 are arranged in a horizontal row. The substantially L-shaped other end portion 122 of the contact 12 is located on the back side of the insulator 11, as shown in FIG.

Grooves 112 having an appropriate depth are formed on the bottom surfaces of both sides of the insulator 11, respectively. Into these grooves 112, one end 31 of the above-mentioned hold-down 3 bent into a substantially L-shape is press-fitted from the connector fitting side and attached as shown by an arrow. FIG. 3 shows a state in which a side portion of the insulator 11 is partially removed, and the other end portion 32 of the holddown 3 is positioned substantially parallel to the bottom surface of the insulator 11 when the above-mentioned mounting is performed.

On both side surfaces 113 of the insulator 11, a notch 114 having a shape in which a cut is gradually deepened from the bottom of the insulator to the bottom is formed. The upper surface of the other end 32 of the holddown 3 is exposed by the notch 113.

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

On both sides of the insulator 21, misinsertion preventing projections 211 having a shape corresponding to the above misinsertion preventing groove 115 are formed, and at the bottom thereof, when the pin connector 1 is mounted on a printed circuit board. Positioning bosses 213 for mounting and positioning are formed respectively. On the other hand, as shown in FIG. 5, the contact 22 is substantially L-shaped, and one end portion 221 of the bifurcated shape is inserted into the opening 211, and the other end portion 222 is located on the bottom surface side of the insulator 21. The contacts 22 are alternately projected forward or backward so that the adjacent contacts 22 are staggered.

FIG. 6 shows a state in which the pin connector 1 and the socket connector 2 described above are surface-mounted on the 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 ends 32 of the holddowns 3 on both sides of the insulator 11 are fixed by soldering to the pattern formed on the printed circuit board 5, and the other end 122 of the contact 12 is arranged on the substrate. Solder and connect to an appropriate pattern. In the case of the socket connector 2, the positioning boss 213 is aligned with the recess 51 formed on the printed board 5, and in this state, the other end 222 of the contact 22 is soldered to an appropriate pattern on the board for connection. To do. Then, in this state, the socket connector 2 is fitted into the opening 111 of the pin connector 1, and the one ends of the contacts 12 and 22 of these connectors are connected to each other.

[0016]

[Effect of the device]

 As described above, according to the present invention, since the holddown is attached to the bottom surface of the side surface of the insulator, the other end which is a mounting portion on the printed circuit board or the like does not project outward from the side surface of the insulator. Therefore, the projected area of the connector on the board is reduced, and a connector suitable for high-density mounting can be obtained. In addition, when it is stored in a stick carrier, etc., it is possible to reliably prevent the connector from clogging and stopping the flow, and the hold down from being deformed.

Further, if the upper surface of the other end of the holddown is exposed from the notch provided on the side surface of the insulator, the holddown is performed even when the other end is soldered by reflowing with infrared rays or the like. The solderability of is not impaired.

[Brief description of drawings]

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

FIG. 2 is a sectional view taken along the line AA in FIG.

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

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

7A is a perspective view of a conventional pin connector, and FIG. 7B 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 contacts

Claims (2)

[Scope of utility model registration request] 1. A connector in which a holddown for fixing a connector is provided on both sides of an insulator provided with a contact, wherein the holddown is formed by bending a groove formed in a bottom surface of a side portion of the insulator into a substantially L shape. A connector having one end of the connector attached. 2. The connector according to claim 1, wherein an upper surface of the other end of the holddown is exposed from a notch formed on a side surface of the insulator.