JP3355476B2 - Right angle 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 right-angle connector which is press-fitted to a wiring board with a mating surface to which a mating connector is fitted at right angles.

[0002]

2. Description of the Related Art Conventionally, a connector 1 of this type shown in FIG. 5 includes a housing 11, a plurality of contacts 12 provided on the housing 11, and a contact cover 13 attached to the housing 11 and covering the contacts 12.

As shown in FIG. 6, a plurality of contact insertion holes 11a are arranged in a housing 11 in two rows.
At both ends in the contact arrangement direction, mounting walls 11b for mounting the contact cover 13 are provided upright. The contact 12 is formed by pressing a conductive material into a substantially L-shape and has a contact portion 12a, an angle portion 12b, and a terminal portion 12c continuously provided from one end.
The contact cover 13 is formed in a substantially rectangular parallelepiped. A plurality of grooves 13a for receiving the angle portions 12b of the contacts 12 are provided in correspondence with the contact arrangement pitch, and the housings 11 are provided on both side surfaces in the arrangement direction of the grooves 13a.
The groove 13b which engages with the mounting wall 11b is formed. When assembling the connector 1 having the above configuration, the contacts 12
The contact portion 1 is inserted into the contact insertion hole 11a of the housing 11.
It is assembled by press-fitting the 2a side and extending the angle portion 12b and the terminal portion 12c from between the mounting walls 11b. Thereafter, the contact cover 13 is fixed to the housing 11 by inserting the angle portion 12b into the groove 13a and engaging the engagement groove 13b with the inner end of the mounting walls 11b. FIG. 7 shows how to attach the connector 1 to the substrate 2.
As shown in FIG. 7A, after inserting the distal end portion of the terminal portion 12c exposed from the contact cover 13 into the corresponding through hole 2a of the substrate 2, the contact cover 13 is pressed toward the substrate 2 to thereby obtain the configuration shown in FIG. As shown in b), the terminal portion 12c is press-fitted into the through hole 2a, and the connector 1 is connected to the board 2.

[0004]

As described above, when the conventional connector 1 is connected to the board 2, the contacts 12 are incorporated into the housing 11 and the contact cover 13, and the housing 11 or the contacts integrated with the contacts 12 are integrated. Since the cover 13 is pressed toward the substrate 2, the dispersion and the directionality of the pressing force applied to the terminal portion 12c are likely to vary. For this reason, a force other than the axial direction, that is, a force other than the press-fit direction is also applied to the terminal portion 12c, and a moment of force is generated, which may cause the terminal portion 12c to buckle.
Therefore, the present invention has been made to solve the above-described drawbacks, and a right-angle connector that can be press-fitted into a through hole of a substrate without buckling a contact and that is connected to the substrate with increased reliability. To provide.

[0005]

According to the present invention, there is provided a right angle connector mounted on a substrate in a direction perpendicular to a direction in which a mating connector is fitted, wherein the connector comprises a housing and a plurality of contacts arranged in the housing. And a contact cover provided with a plurality of grooves in the contact arrangement direction in which the contacts extending from the housing are inserted, the contact being attached to the housing from one end side, and the contact extending from the housing. and angle portion to be inserted into the groove of the cover, integrally includes a terminal portion continuous with the angle portion, the terminal portion or one side of the lower end of the angle portion
And a shoulder bent at a right angle from the lower end of the shoulder
A press-fit portion extending downward from the center and being press-fitted into a through-hole of the substrate; and when the contact cover is pressed toward the substrate with the angle portion inserted into the groove, a peripheral edge of the groove is formed. to press the above-mentioned shoulder in the part is intended to press the press-fit portions in the through hole of the substrate.

As described above, according to the present invention, when the press-fit portion of the contact is press-fitted into the through hole of the substrate,
The contact cover is inserted into the groove with the angled portion of the contact extending from the housing and pressed toward the substrate surface. As a result, the peripheral edge of the groove of the contact cover presses the shoulder portion continuous with the press-fit portion of the contact along the axial direction of the press-fit portion, and press-fits the press-fit into the through hole of the substrate. For this reason, it is difficult for a force other than the press-fitting direction to be applied to the press-fit portion, and a right-angle connector that is connected to the board with increased reliability without buckling the contact can be obtained.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1A is a sectional view showing an embodiment of the present invention, FIG. 1B is a sectional view taken along the line AA in FIG. 1A, and FIG. 2 is an exploded perspective view. The connector 3 of the present invention includes a housing 31, a contact 4 disposed on the housing 31, and a contact cover 32 covering the contact 4 extending from the housing 31. The housing 31 is formed of an insulating material into a substantially rectangular parallelepiped block shape, and includes a plurality of contact insertion holes 31a.
Are arranged in three rows in the longitudinal direction. The contact 4 is manufactured by pressing a conductive plate material, and includes a contact portion 41 formed at one end and a terminal portion 42 provided at the other end as shown in FIG. Angle part 4
3 are integrally connected.

The contact portion 41 has a holding portion 41a bent substantially in a U-shape, and contact springs 41c, 41c extend forward from front ends of both side walls 41b, 41b of the holding portion 41a. I have. In addition, locking projections 41d that engage with the contact insertion holes 31a protrude from upper ends of the both side walls 41b, 41b.
The lower ends are connected to each other by connecting pieces 41e. The angle part 43 includes an elongated plate-shaped horizontal part 43 a and a vertical part 43.
b, and one end of the horizontal portion 43a is connected flush with the connecting piece 41e on the rear end side of the contact portion 41, and the vertical portion 43b is connected to the horizontal portion 43a from the other end side. The terminal portion 42 extends at a right angle on the same surface, and a terminal portion 42 is continuous with the tip.

The terminal portion 42 has a shoulder 42a bent from one side of the tip of the vertical portion 43b in the direction opposite to the side wall 41b of the contact portion 41, and a shoulder from substantially the center of the lower end of the shoulder 42a. The press-fit portion 42b extends in the direction opposite to the vertical portion 43b flush with the portion 42a, and is press-fitted into the through hole 2a of the substrate 2. The press-fit part 42
As shown in the figure, a long and narrow hole 42c is formed through the center portion of the through-hole 2a.
When pressed into the hole 42c, the press-fit portion 42b along the long axis direction of the hole 42c is easily bent toward the hole 42c.

When the contacts 4 are mounted on the housing 31, the contacts 4 are inserted into the contact insertion holes 31a with the terminal portions 42 facing the substrate 2 and the contact portions 41 first, and the locking projections 41d are inserted into the contact insertion holes 31a. Can be attached to the inner wall of the car. Next, the contact cover 32 is formed of an insulating material into a rectangular parallelepiped having substantially the same size as the housing 31, and a plurality of grooves 32a corresponding to the arrangement pitch of the contact insertion holes 31a are arranged along the longitudinal direction. Have been. The groove 32 a is opened on the front side of the contact cover 32 overlapped with the housing 31 and the bottom side facing the substrate 2 to accommodate the angle portion 43 of the contact 4 extending from the housing 31.

The width of the groove 32a is determined by the angle
The protrusion 43c provided in the vicinity of the shoulder 42a is set to a size to be pressed into the groove 32a. Next, in order to attach the connector 3 having the above configuration to the substrate 2, as shown in FIG. 3, the contact cover 32 is inserted into the groove 32a by the angle portion 43 extending from the housing 31, and the protrusion 43c is press-fitted into the groove 32a. Before being placed on the housing 31.

Next, with the tip of the press-fit portion 42b protruding from the bottom surface of the contact cover 32 corresponding to the through hole 2a of the substrate 2, the contact cover 32 is pressed using a suitable pressing jig (not shown). Arrow A on top
A pressing force is applied in the direction, that is, toward the substrate 2. Thus, the contact cover 32 is press-fitted into the groove 32a with the projection 43c attached thereto and attached to the angle portion 43, and is pressed against the corresponding shoulder 42a of the contact 4 by the peripheral edge of the groove 32a opened to the bottom surface 32b side. Then, the press-fit portion 42b continuous with the shoulder portion 42a is press-fitted into the through hole 2a, and the connector 3 is connected to the board 2.

[0013]

As described above with reference to the embodiments, when the connector of the present invention is mounted on the board, the contact cover is pressed toward the board surface while inserting the angle portion of the contact extending from the housing into the groove. By pressing the peripheral edge of each groove of the contact cover against the shoulder of the corresponding contact, the press-fit portion continuous with the shoulder is pressed into the through hole of the substrate. In this manner, the contact is pressed by the peripheral portion of the groove of the contact cover at a position corresponding to the center axis of the press-fit portion of the shoulder, so that the press-fit portion is unlikely to receive a dispersed force as in the conventional example, A force along the press-fit direction acts. For this reason, it is possible to provide a right angle connector that is connected to the board with increased reliability without the press-fit portion being buckled.

[Brief description of the drawings]

FIGS. 1A and 1B show an embodiment of the present invention, in which FIG. 1A is a side sectional view in which the connector of the present invention is mounted on a board, and FIG. 1B is a sectional view taken along the line AA in FIG.

FIG. 2 is an exploded perspective view showing the connector of the present invention.

3A is a side sectional view showing a process of mounting the connector of the present invention on a board, and FIG. 3B is a sectional view taken along the line BB in FIG.

FIG. 4 is a perspective view showing a contact according to the embodiment of the present invention.

FIG. 5 is a perspective view showing a conventional connector.

FIG. 6 is an exploded perspective view of a conventional connector.

7A and 7B are side sectional views showing a mounting process of a conventional connector.

[Explanation of symbols]

 3 Connector 31 Housing 32 Contact cover 32a Groove 4 Contact 41 Contact part 42 Terminal part 42a Shoulder 42b Press-fit part 43 Angle part

Claims (1)

(57) [Claims] 1. A right angle connector attached to a board in a direction orthogonal to a direction in which a mating connector is fitted, wherein the connector extends from the housing, a plurality of contacts arranged in the housing, and the housing. becomes a groove in which the contact is inserted from the contact cover provided plurality of contact alignment direction, the contact is inserted a contact portion attached from one end to the housing, to the groove of the extending out the contact cover from the housing An angle portion and a terminal portion continuous with the angle portion are integrally formed, and the terminal portion is bent at a right angle from one side of a lower end of the angle portion .
And the shoulder, made from the press-fit portion to be press-fitted into the through hole of the extending out the substrate from substantially the center below the lower end of the shoulder, on the substrate in a state where the contact cover is inserted the angle portion in the groove when it is pressed against, right angle connector, characterized in that press-fitting the press-fit portion pressed the through-hole of the substrate to the shoulder at the edge of the groove.