JPH0735317Y2 - Connection terminal for connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a female connector connecting terminal for use in an electrical connector, which receives a mating flat blade male connecting terminal.

[Prior Art] This type of female connection terminal is widely used in which a movable contact piece made of a leaf spring that gives a contact pressure when a male connection terminal is inserted therein is widely used. In order to provide such a movable contact piece inside the connection terminal, it is generally constructed by punching out and bending a conductive metal plate to fold back a part of the connection terminal, but the spring property is insufficient. I often do it. Therefore, a method in which the movable contact piece is formed as a separate member from the connection terminal body, and the locking side portions on both sides of the movable contact piece are fitted into the locking holes formed in the side wall of the connection terminal of the connection terminal is, for example, a special method. It is known from, for example, the Sho 58-169784 publication.

[Problems to be Solved by the Invention] However, in such a system, when the male type connection terminal 1 is inserted as shown in FIG. 4, the tip portion thereof is provided inside the female type connection terminal 2. The movable contact piece 3 may hit the front end portion 3a of the movable contact piece 3 and interfere with the insertion. In general, a large number of female connection terminals 2 are mounted on one side of a connector, and even if only one such a connection is present, the connectors may not fit together.

In order to avoid this, as shown in FIG. 5, a method of covering the front end portion 3a of the movable contact piece 3 with the lower side portion 2a of the connection terminal 2 is also known, but it is not economical because it requires a large number of processing steps. .

[Object of the Invention] The object of the present invention is to improve the drawbacks of the conventional connecting terminal, and the male connecting terminal is easily guided inside by the front end portion of the movable contact piece which is a separate member. Another object of the present invention is to provide a highly reliable connector connecting terminal capable of reliably holding the movable contact piece.

[Summary of the Invention] The gist of the present invention for achieving the above-mentioned object is to provide a movable contact piece made of a separate leaf spring inside a connecting portion for receiving a mating connection terminal, and to arrange both sides of the movable contact piece. In the connector connecting terminal in which the locking protrusions of the above are fitted in the locking holes provided on both sides of the connecting portion, a bent portion bent to the bottom side of the connecting portion is formed at the front end portion of the movable contact piece. Then, a convex portion is provided at the center of the tip of the bent portion, the convex portion is engaged with a notch portion provided at the front end of the bottom portion, and the shoulder portions on both sides of the convex portion abut the inner surface of the bottom portion. This is a connector connection terminal characterized by the above.

[Embodiment of the Invention] The present invention will be described in detail with reference to the embodiments shown in FIGS.

FIG. 1 is a perspective view of a connection terminal, and FIG. 2 is a vertical sectional view.
The terminal body 10 made by punching and bending a conductive metal plate is
From the rear side, the connection part into which the male connection terminal is inserted following the crimping part 11 for the coating of the electric wire and the crimping part 12 for the core wire.
Made of 13 The connecting portion 13 includes a bottom portion 14, side wall portions 15a and 15b raised from both sides, and the side wall portions 15a and 15b.
Bending a and 15b further inward, and the spring part provided in a part of them
It is surrounded by upper wall portions 16a and 16b having 16 ', and a movable contact piece 17 which is a separate body is accommodated in the inside. Further, locking holes 18a and 18b are formed in both side wall portions 15a and 15b of the connecting portion 13, respectively.

As shown in FIG. 3, the movable contact piece 17 is bent in a V-shape in cross section and has a spring property that causes elastic deformation by contact with the male connection terminal on the mating side, and the side wall portions 15a and 15b have Locking protrusions 19a, 19b fitted in the locking holes 18a, 18b opened respectively.
Are provided on both sides, and a bent portion 20 is formed at the front end portion, which is bent substantially at a right angle to the bottom portion 14 side, and a convex portion 22 is provided at the center of the tip of this bent portion 20, and on both sides thereof. Shoulders 23a, 23b
Are formed.

In order to assemble such a movable contact piece 17 into the connecting portion 13, as shown in FIG. 3, the engaging projections 19a and 19b are provided in the engaging holes 18a and 1.
8b, and then the upper wall portions 16a and 16b are closed.
The movable contact piece 17 has an intermediate portion bent upward, and an upper wall portion
When the mating male connection terminal is inserted between 16a and 16b, it elastically deforms, depending on the elasticity of the movable contact piece 17 itself and the elastic force of the spring portion 16 'of the upper wall portions 16a and 16b. , The male connection terminal will be pressed with an appropriate pressure. Further, the convex portion 22 of the movable contact piece 17 engages with the notch portion 21 provided at the front end of the bottom portion 14 of the connecting portion 13, and the locking protrusions 19a and 19b are locked in the locking hole 18.
When engaged with a and 18b, the elastic force of the movable contact piece 17 itself causes the shoulder portions 23a and 23b on both sides of the convex portion 22 to be pressed against the inner surface of the bottom portion 14.

Here, the bent portion 20 serves as a guide portion for the male connecting terminal, and even if the tip of the male connecting terminal abuts the bent portion 20 of the movable contact piece 17, the shoulder portion of the movable contact piece 17 is formed. Since 23a and 23b are in contact with the bottom portion 14, the movable contact piece 17 can be deformed without swinging and the male connection terminal can be guided inward. Further, the locking projections 19a, 19b and the shoulders 23a, 23b provided on the movable contact piece 17 can stably hold the movable contact piece 17, and act when the male connection terminal is inserted or removed. Sufficient strength can be maintained against external forces such as twisting force in the front-back, left-right, and up-down directions.

Furthermore, since the movable contact piece 17 can be selected to have an arbitrary thickness and material, the movable contact piece 17 can be formed between the upper wall portions 16a and 16b in accordance with various thicknesses of the male connection terminal without changing the main body of the connection terminal 10. It is possible to secure an appropriate interval and pressure contact force.

[Effects of the Invention] As described above, the connector connection terminal according to the present invention has a bent portion provided at the front end of a separate movable contact piece, and a convex portion provided with this bent portion at the tip is connected to the connection portion. Since the engaging portion engages with the notch provided at the inlet, there is an effect that the mating connection terminal is guided by the end of the movable contact piece and is smoothly inserted.
In addition, the movable contact piece is stably and reliably held in the connection portion of the terminal body by the locking projections on both sides, the projections at the front end, and the shoulders on both sides thereof.

[Brief description of drawings]

1 is a perspective view, FIG. 2 is a longitudinal sectional view, FIG. 3 is a perspective view of parts before assembly, and FIG. 4 is a perspective view of a connector connecting terminal according to the present invention. FIG. 5 is an explanatory diagram of a conventional example. Reference numeral 11 is a terminal body, 13 is a connecting portion, 14 is a bottom portion, 15a and 15b are side wall portions, 16a and 16b are upper wall portions, 17 is a movable contact piece, and 18a and 18b.
Is a locking hole, 19a and 19b are locking protrusions, 20 is a bent portion, 21 is a cut portion, 22 is a convex portion, and 23a and 23b are shoulder portions.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-58-169784 (JP, A) Actually opened 60-60879 (JP, U) Actually opened 60-78587 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A connecting portion for receiving a mating connecting terminal,
In a connector connection terminal, wherein a movable contact piece composed of a separate leaf spring is provided, and locking protrusions on both sides of the movable contact piece are fitted into locking holes provided on both sides of the connection portion. A bent portion is formed at the front end of the movable contact piece, the bent portion being bent toward the bottom side of the connection portion, a convex portion is provided at the center of the tip of the bent portion, and the cut portion is provided at the front end of the bottom portion with the convex portion. And the shoulder portions on both sides of the convex portion are in contact with the inner surface of the bottom portion.