JP3057424B2 - Contact and connector provided with the contact - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contact and a connector provided with the contact, and more particularly to a contact suitable for high-density mounting of electronic equipment and a connector provided with the contact.

[0002]

2. Description of the Related Art A conventional contact is formed by punching a conductive metal plate by a press as shown in FIG. The contact 100 includes a flat holding portion 100a, a contact portion 100b extending in one axial direction from one end of the holding portion 100a, and a terminal portion 100c extending in the other axial direction from the other end of the holding portion 100a. And

A contact portion 100d is formed on the plate surface at the tip portion of the contact portion 100b so that the plate surface protrudes to one side by performing a bending process into a curved shape. Holder 100
a has a plurality of projections 101 projecting in the width direction orthogonal to the uniaxial direction on the plane.

As shown in FIG. 7, a connector is obtained by press-fitting the contact 100 into a contact holding hole 102a formed in an insulator 102, as shown in FIG. In this connector, the protrusions 101 are formed wider than the distance between the inner wall surfaces 103 of the contact holding holes 102a of the insulator 102, and the contacts 100 are held by making the protrusions 101 bite into the inner wall surfaces 103 of the contact holding holes 102a. Is what you are doing. The number of the protrusions 101 is two or one.

[0005]

However, in the prior art connector, the strength of the insulator 102 is reduced because the projection 101 of the contact 100 is cut into the inner wall surface 103 of the contact holding hole 102a. In particular, even in a connector in which the contacts 100 are incorporated into the insulator 102 at a high density, there is a demand to reduce the size. Therefore, since the thickness of the inner wall surface 103 is set to be small from the design stage, the insulator 102 is broken. The chances are high. Conversely, if the press-fit amount of the contact 100 is reduced to avoid cracking, there is a problem that a sufficient holding force cannot be obtained.

Further, since the holding portion 100a has no elastic recovery force, if the load is repeatedly applied, the contact 100 which should be held in a correct posture in the uniaxial direction,
There is a problem that the inner wall surface 103 of the insulator 102 is inclined by being cut by the protrusion 101.

Further, in the press-fitting step when assembling the contact 100 to the insulator 102, the contact 10
0 accuracy (the interval between the left and right protrusions 101) is poor,
If tilted during temporary insertion, there is a problem that the tilt remains after press-fitting.

[0008] Therefore, an object of the present invention is to provide a contact in which the shape of the insulator is small and the strength is maintained even when the contact is incorporated at a high density, and a sufficient holding force can be obtained.
And a connector having contacts.

It is another object of the present invention to provide a contact configured so that the contact does not tilt with respect to the insulator, and a connector including the contact.

[0010]

According to the present invention, a flat holding portion, a contact portion extending from one end of the holding portion to one side, and a terminal extending from the other end of the holding portion to the other side. In the conductive contact having a portion, the holding portion has a plate thickness surface on one side edge in the width direction parallel to one axis as a reference surface, and the holding portion is on a side opposite to the one side. The other side edge is a connecting portion that is bent upward on one surface of the holding portion and is connected to the holding portion, and extends from the connecting portion to the other side edge and toward the terminal portion. A spring portion is connected, and the spring portion is inclined from the connection portion so as to gradually separate from the other side edge, and a tip end portion of the spring portion is larger than a width dimension of a connection portion connected to the connection portion. Are also formed wide, and the tip portion of the spring portion is Contacts, characterized in that it extends so as to face the plate thickness surface can be obtained.

According to the invention, there is provided an insulator holding the contact, the insulator having a contact holding hole for accommodating and holding the contact, and the inner wall surface of the contact holding hole having the spring. A step portion for locking the tip of the portion is formed, and the tip portion of the spring portion is in contact with the inner wall portion with a spring force, and the reference surface is in contact with the inner wall portion by the spring force of the spring portion. Is held by the insulator while being pressed against the inner wall on the opposite side.

[0012]

1 and 2 show an embodiment of a contact according to the present invention and a connector provided with the contact. Referring to FIGS. 1 and 2, the connector has a contact 1 and an insulator 11 holding the contact 1. The contact 1 is formed by punching a thin conductive metal plate by a press and then performing a bending process.

As shown in FIGS. 3 and 4, the contact 1 has a flat holding portion 1a, a contact portion 1b extending from one end of the holding portion 1a to one side, and a contact portion 1b extending from the other end of the holding portion 1a. And a terminal portion 1c extending to the other side. A contact portion 1e is formed at a tip portion of the contact portion 1b. The contact portion 1e is connected to a contact (not shown) in the thickness direction of the contact 1.

The holding portion 1a has a width W1 wider than the width W2 of the connecting portion 1d with the contact portion 1b in the width direction orthogonal to one axis, and has a width W1 in the width direction parallel to the one axis. One side edge 3 is used as a reference plane. Here, the reference surface corresponds to one plate thickness surface including one side edge 3.

The other side edge 4 opposite to the one side of the holding portion 1a is bent upward on one surface of the holding portion 1a to hold the holding portion 1a.
And a spring portion 6 that faces the other side edge 4 from the connection portion 5 and extends in the direction of the terminal portion 1c.
And are connected. Here, the other side edge 4 corresponds to the other plate thickness surface including the other side edge 4.

The spring portion 6 is gradually inclined from the connecting portion 5 so as to gradually move away from the other side edge 4. As shown in FIG. 4, the distal end portion of the spring portion 6 is formed to have a width W4 wider than the width W3 of the connecting portion connected to the connecting portion 5. The distal end portion 6a of the spring portion 6 extends so as to face the other side edge (the other plate thickness surface) 4. The tip of the spring portion 6 is located on substantially the same line as the reference surface of the one side edge 3. The connecting portion 5 is bent at a right angle to the holding portion 1a.

Returning to FIGS. 1 and 2, the insulator 11
Has a contact holding hole 12 for accommodating and holding the contact 1. On the inner wall surface 12a (see FIG. 1) on the other side of the contact holding hole 12 facing the spring portion 6, a step portion 12b for locking the tip of the spring portion 6 is formed.
The tip portion of the spring portion 6 is in contact with the inner wall portion 12a with a repulsive force, and the resilient force of the spring portion 6 causes the holding portion 1
The one side edge 3 of a is held by the insulator 11 in a state of being pressed against the one inner wall portion 12c opposite to the other inner wall portion 12a.

One side edge (reference plane) 3 of the contact 1
And one inner wall surface 12c of the insulator 11 against which the one edge 3 is pressed, are both straight lines parallel to one axis.

In order to hold the contact 1 in the contact holding hole 12, the contact portion 1b is inserted from the lower opening of the contact holding hole 12 with the terminal portion 1c of the contact 1 facing down, and one side is inserted. The edge 3 is inserted along one inner wall surface 12 c of the insulator 11. When the spring portion 6 is bent and inserted to the end, the bending of the spring portion 6 is released,
The spring part 6 is hooked on the step part 12b of the contact holding hole 12, the contact 1 is locked, and the insertion is completed. At this time, the entire contact 1 is pushed toward one edge 3 by the spring force of the spring portion 6. By doing so, the inclination of the posture of the contact 1 in the insulator 11 is prevented.

The spring portion 6 has a wide portion formed at the tip, and its shape is substantially the same as the shape of the tip of the tip portion 6a of the spring portion 6 on the one surface 1f of the holding portion 1a perpendicular to the reference plane. So that they are on the same line. Since the spring portion 6 has elasticity, it is necessary to bend the contact into an L-shape to protrude the spring portion 6. However, since the line in the width direction orthogonal to the reference plane is bent, it becomes a curved surface (the bent portion R). This is because the lance cannot be cut out.

If the tip of the spring portion 6 is not widened,
Since the axis of the force generated by the spring portion 6 is shifted with respect to the reference plane, a moment is generated, and the contact 1 is rolled in the insulator 11. As shown in FIG.
The width of the tip is widened so that the reference surface and the spring portion are aligned on the same line so that no moment is generated.

[0022]

As described above, as described in the embodiment of the contact according to the present invention and the connector provided with this contact, one side edge of the holding portion is pressed against the inner wall surface of the contact holding hole by the spring portion. With this configuration, a sufficient holding force can be obtained even with a high-density connector having a small wall thickness, and at the same time, inclination when the contact is incorporated into the insulator can be prevented.

Further, even when the contact is repeatedly subjected to a load when connected to the counterpart contact or when the contact is assembled into the insulator, the contact portion always presses one side edge of the holding portion against the inner wall surface of the contact holding hole. Since the posture is maintained due to the resiliency of the contact, no looseness or the like occurs and the contact does not tilt.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an embodiment of a contact according to the present invention and a connector including the contact.

FIG. 2 is a cross-sectional view of the contact of FIG. 1 and a connector including the contact as viewed from the right side.

FIG. 3 is a front view showing a main part of the contact shown in FIG. 1;

FIG. 4 is a side view showing a main part of the contact of FIG. 2;

FIG. 5 is an enlarged cross-sectional view showing a portion of the contact shown in FIG. 3 taken along line IV-IV.

FIG. 6 is a perspective view showing a conventional contact.

FIG. 7 is a cross-sectional view showing a part of a connector including the contact shown in FIG. 6;

[Explanation of symbols]

 1,100 Contact 1a, 100a Holding part 1b, 100b Contact part 1c, 100c Terminal part 3 One side edge 4 The other side edge 5 Connecting part 6 Spring part 11,102 Insulator 12,102a Contact holding hole 12a Inside of other side Wall 12b Step 12c One inner wall 101 Projection 103 Inner wall

──────────────────────────────────────────────────の Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 13/42

Claims (4)

(57) [Claims] A conductive member having a flat holding portion, a contact portion extending from one end of the holding portion to one side, and a terminal portion extending from the other end of the holding portion to the other side. In the contact, the holding portion has a plate thickness surface on one side edge in the width direction parallel to one axis as a reference surface, and the other side edge of the holding portion opposite to the one side has the holding portion with the holding portion. A connecting portion bent to one side and connected to the holding portion, and a spring portion facing the other side edge from the connecting portion and extending in the direction of the terminal portion are connected to each other, The spring portion is inclined from the connecting portion so as to gradually move away from the other side edge, and a tip portion of the spring portion is formed wider than a width dimension of a connecting portion connected to the connecting portion, and The tip of the spring portion extends so as to face the plate thickness surface. Contact, characterized in that. 2. The contact according to claim 1, wherein a tip of said spring portion is located on substantially the same line as one surface of said holding portion orthogonal to said reference surface. 3. The connector provided with a contact according to claim 1, further comprising an insulator holding said contact, said insulator having a contact holding hole for receiving and holding said contact, wherein said insulator has a contact holding hole. A step portion for locking the tip of the spring portion is formed on the inner wall surface, and the tip portion of the spring portion is in contact with the inner wall portion with a spring force, and the reference portion is formed by the spring force of the spring portion. A connector held by the insulator in a state where a surface is pressed against an inner wall portion opposite to the inner wall portion. 4. The connector according to claim 3, wherein the reference surface and the inner wall surface of the contact holding hole against which the reference surface is pressed are surfaces including straight lines. connector.