JPH0474836B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a contact used, for example, in an electrical connector.

[Conventional technology]

Conventionally, socket contacts 1 and pin contacts 2, as shown in FIG. 6, are commonly used for electrical connections. That is, socket contact 1
A pin contact 2 is inserted in contact between each contact portion 4, 4 of the pair of spring portions 3, 3, thereby obtaining the desired electrical connection.

Further, as another contact, there is a hermaphrodite contact 11 as shown in FIG. In such a contact 11, the contact portions 13 formed respectively come into contact with each other to obtain an electrical connection.

[Problem that the invention seeks to solve]

However, since the socket contact 1 shown in FIG. 6 has a pair of contact spring parts 3,
The width dimension of the socket contact 1 in the unfolded shape increases. This limits the ability to arrange the socket contacts 1 with high density in the lateral direction when punching them.

Furthermore, since the socket contact 1 and pin contact 2 are required to have completely different shapes from each other, there is a problem in that the manufacturing cost is high.

In addition, the hermaphrodite contact 1 shown in FIG.
In No. 1, there is a problem that the contact reliability is poor because the contact point is only one point.

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a contact which can be arranged in a high density during the punching process of the contact, has improved reliability through two-point connection, and can be a hermaphrodite.

[Means for Solving the Problems] According to the present invention, in a contact made by punching and bending a conductive plate, a plate-shaped first contact portion, an edge near one end of the first contact portion an intermediate portion bent to protrude from the top of the intermediate portion toward one surface thereof; and an intermediate portion extending from the tip of the intermediate portion on one side of an extension plane of the one surface substantially parallel to the extension plane and in a direction opposite to the first contact portion. a spring portion having a plate width in a plane intersecting the extension plane, and a second contact portion protruding from the extension end of the spring portion to the other side across the extension plane; A contact is obtained in which the portion is displaced in the width direction of the plate.

[Embodiment] FIGS. 1 to 4 show a case where an electrical connection is made using two embodiments of the contact according to the present invention.

The illustrated contact 21 has a flat plate-shaped first contact portion (intermediate contact portion) 23 made of a conductive plate. A connecting portion 25 is formed at one end of the intermediate contact portion 23, for example, to connect to a printed circuit on a printed circuit board. On the opposite side of the intermediate contact section 23, ie, on the opposite side from the connection section 25, an inclined guide base 27 and a contact spring section 29 extend via an intermediate section (bending section) 30. The intermediate portion 30 extends from an edge near one end of the intermediate contact portion 23 so as to protrude toward one side thereof. The contact spring part 29 extends on one side of the extended plane of the one surface 23a of the intermediate contact part 23, substantially parallel to this extended plane and in the opposite direction to the intermediate contact part 30, and has a plate width in a plane that intersects the extended plane. It's growing like a tree. That is, the contact spring portion 29 is displaced in the width direction thereof.

The flat portion of the contact spring portion 29 is the intermediate contact portion 23
It is almost perpendicular to the plane of the plane. A second contact portion 33 is formed at the tip of the contact spring portion 29 . The tip of the second contact portion 33 crosses an extension plane of the one surface 23a of the intermediate contact portion 23 described above, and is in contact with an extension line of the axis a of the plate thickness surfaces of the contact portion 25 and the intermediate contact portion 23.

Furthermore, an axis d of the connecting portion 25 on the plane extends between the axis b of the plate thickness surface of the contact spring portion 29 and the axis c of the guide base 27 on the plane. These axes b, c, and d extend parallel to each other.

By the way, the contact 21 has the developed shape shown in FIG. This developed shape can be easily obtained by pressing the conductive plate. That is, the contact 21 can take a developed shape with a narrow interval between the axes d and d on the conductive plate, and the contact spring part 29 and the intermediate contact part 2
3 is bent at a right angle so that the contact spring portion 29 can be inserted in parallel, so that the contacts 21 can be arranged with small pitches between the top and bottom and left and right. It also has good material usage efficiency. Thereafter, the contact spring portion 29 is oriented perpendicularly at the intermediate portion 30.
bend.

The contact 21 made in this way is 2
Electrical connection can be obtained by fitting the two together as a set as shown in FIGS. 3 and 4. That is, the contacts 21 are hermaphroditic. During the connection work, the second contact part 33 at the tip of each contact spring part 29 is guided by the guide base 27 of the other party, and the one surface 23 of the intermediate contact part 23 is
Smoothly climb onto a. At this time, the axes d in the plane and thickness plane of each connecting portion 25 coincide in the extending direction. Similarly, the axis b of the plate thickness surface of the contact spring portion 29 and the axis c of the guide base 27 are aligned in the extension direction.

Further, the axes a of the plate thickness surfaces of the connecting portion 25 and the intermediate contact portion 23 are also aligned with each other.

When the two contacts 21 are completely fitted into each other, one surface 23a of each intermediate contact portion 23 is firmly pressed by the second contact portion 33 of the contact spring portion 29. In this way, two contact points are obtained, which improves the reliability of the contact.

Further, since the two contact spring portions 29 deform to the same side in the fitted state, the contact force of one does not reduce the contact force of the other.

Note that it goes without saying that the contact 21 is used by being incorporated into, for example, an electrical connector.

〔Effect of the invention〕

As explained above with reference to the embodiments, according to the contact of the present invention, since the intermediate contact portion and the contact spring portion extend continuously in one direction via the intermediate portion,
The conductive plates can be developed into narrowly spaced dimensions, allowing high-density processing when punching products. Also, when making an electrical connection, the two contacts are 2
Since point contact is made, contact reliability is improved. Furthermore, in the connected state, the contact spring portions deform to the same side, so the contact force of one does not relieve the contact force of the other.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the state before fitting using two contacts of the present invention, Fig. 2 is a side view of Fig. 1, and Fig. 3 shows the fitted state of the contacts of Fig. 1. 4 is a side view of FIG. 3, FIG. 5 is a developed view of two contacts, FIG. 6 is a front view showing a conventional socket contact and a pin contact, and FIG. 7 is a front view of the conventional socket contact and pin contact. 1 is a front view of a conventional hermaphrodite contact; FIG. DESCRIPTION OF SYMBOLS 1...Socket contact, 2...Pin contact, 3...Contact spring part, 4...Contact part, 11...
...Contact, 13...Contact part, 21...Contact, 23...First contact part (intermediate contact part), 2
5... Connecting part, 27... Guide base, 29... Contact spring part, 30... Intermediate part (bending part), 33... Second contact part.

Claims (1)

[Claims] 1. A contact made by punching and bending a conductive plate, including a plate-shaped first contact part, an intermediate part bent so as to protrude from an edge near one end of the first contact part to one side thereof; Extending from the tip of the intermediate portion on one side of the one extended plane substantially parallel to the extended plane and in the opposite direction to the first contact portion,
A spring portion having a width in a plane intersecting the extension plane, and a second contact portion protruding from the extension end of the spring portion to the other side across the extension plane, the spring portion A contact characterized by being displaced in the width direction of the plate.