JP2526875Y2 - IDC joint connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a press-joint joint connector which is provided in the middle of a wire harness, press-connects a wire taken out from the wire harness as it is, and uses it for forming a circuit. Things.

2. Description of the Related Art A press-joint joint connector has a shape composed of a combination of a connector main body 1 having juxtaposed electric wire receiving grooves 3 and a cover body 2 covering the joint main body 1, as shown in FIG. A plate-shaped pressure contact blade 6 composed of an upper opening U-shaped slot 5 is erected in the accommodation groove 3 in a transverse manner, taken out from the wire harness, and pressed into the pressure contact blade 6 with the electric wire 4 covered.
The electric wire coating is cut at the edge of the U-shaped slot 5 so that the electric wire and the press-contact blade 2 are brought into press-contact with each other to conduct joint.

However, since the pressure contact portion between the pressure contact blade 6 and the wire conductor has a structurally weak strength against the pulling force of the electric wire 4, in order to prevent collapse of the pressing position due to the pulling force and to stabilize the pressure contact performance, As shown in FIG. 3 (B), a push-down projection 7 is provided below the cover body 2 to hold down the electric wire 4 around the press-contact blade 6 to form a "bulge-shaped" bent wiring portion 8, or FIG. As shown in (C), the electric wire sandwiching portion between the connector main body 1 and the cover body 2 is formed in a rack-toothed uneven portion 9, and the electric wire 4 before and after the press-contact blade 6 is sandwiched and fixed by the uneven portion 9, and this bent wiring is performed. A structure in which a portion where the portion 8 and the uneven portion 9 are sandwiched serves as a strain relief for the electric wire 4 is used.

[Problem to be Solved by the Invention] Among the conventional means described above, the former having the bent wiring portion structure is inevitably enormous in length because the connector becomes long and enormous in order to form the bent wiring portion 8. In the configuration of pinching the uneven part of the above, for effective strain relief effect,
The connector 9 becomes longer due to the lengthening of the projections and depressions 9, all of which are inconsistent with recent demands for miniaturization and compactness of wire harnesses.

The present invention provides a press-joint joint connector that solves the above-mentioned problems of the conventional means.

"Means for Solving the Problems" The press-joint joint connector of the present invention for solving the above technical problems is a "plate-like structure having a U-shaped slot having an upper opening formed by arranging wire receiving grooves in parallel. A press-fit joint connector comprising a connector body in which the press-contact blades are erected transversely and a cover body covering the connector body. A metal plate dummy press-connecting blade having a slot and being separate from the press-connecting blade and cutting and holding the covering of the wire pressed into the U-shaped slot '' in parallel with the press-connecting blade. A structure in which the dummy press-contact blades are erected and fixed, and the dummy press-contact blades are configured as a portion for supporting an external force for pulling out an electric wire connected by pressure to the press-contact blades. "
It has become.

That is, the press-joint joint connector of the present invention has a structural feature including the above-mentioned dummy press-connect blade, and the dummy press-connect blade functions as an original press-connect blade that press-contacts a conductor of an electric wire and conducts electricity electrically. Aside from that, the function of carrying the "strong pull-out external force from the joint connector" generated on the wire crimped to the press-contact blade is necessary and sufficient, and the connection conduction performance with the wire becomes useless. .

Therefore, the U-shaped slot of the dummy press-connecting blade is cut into an appropriate amount in the covering of the wire to be clamped and held to form a locked state, and the notch engagement sufficient to withstand the above-mentioned external force may be sufficient.
Non-pressure contact or light pressure contact (pressure contact with which it is difficult to obtain good electrical continuity) with the wire conductor is sufficient.

[Operation] The above-described press-joint joint connector of the present invention is provided with a metal dummy press-contact blade parallel to the press-contact blade before and after the press-contact blade erected in the wire accommodating groove. The slot cuts the wire covering to hold and hold the wire conductor, and its dummy press-connecting blade is implanted and fixed, so it has enough strength against external force, and easily deforms due to expected normal wire pulling force There is no danger that the dummy press-contact blades present on both sides of the press-contact blade receive and carry the wire pulling external force in any direction, thereby preventing external force from spreading to the press-contact blade.

The dummy press-connecting blade is a plate-like body and requires a small standing space, so that the press-fit joint connector does not become large.

"Example" Hereinafter, a detailed description will be given based on an example. First, referring to FIG. 1 showing a first embodiment of the present invention, an electric wire receiving groove 3 will be described.
And a cover body 2 that covers the connector body 1 and has an upper opening U-shaped slot 5 in the center of the wire receiving groove 3 of the connector body 1. The press contact blades 6 are erected in a transverse manner (two press contact blades 6 are shown), and the wire 4 taken out of the wire harness is pressed into the press contact blade 6, and the conductor of the electric wire 4 and the U-shaped slot of the press contact blade 6 are formed. In the press-joint connector, which press-connects the press-connecting blades 5 and conducts, before and after the press-connecting blades 6 erected in pairs,
A dummy press-contact blade 10A10B of a metal plate having a U-shaped slot 5 opened upward is provided at an equal height in parallel with the press-contact blade 6, and the leg portion 11 of the press-contact blade 10A10B and both left and right sides are provided. The rim 12 is embedded in the connector body 1 and is fixedly mounted on three sides.

That is, the U-shaped slot 5 of this dummy pressure contact blade 10A10B
Has the same shape as the press contact blade 6 and is parallel to the U-shaped slot 5 of the press contact blade 6, and when the taken-out wire 4 is pressed against the press contact blade 6, the electric wire 4 is connected to the U of the dummy press contact blade 10A10B. The wire 4 is press-fitted into the V-shaped slot 5, and the wire 4 is cut off to cover and hold the wire conductor.

Next, FIG. 2 shows another embodiment of the present invention.
In the press-fit joint connector including the connector body 1 and the cover body 2 having the same wire housing groove 3 and the press-contact blade 6 as in the above embodiment, the press-contact blade 6 erected in the center of the wire housing groove 3.
Before and after, a leg 11 having a U-shaped slot 5 with an upper opening
Dummy press contact blade 10A10B of a metal plate body
It is arranged and fixed in parallel with the press-contact blade 6. The dummy press-contact blade 10A10B of this embodiment has an inverted posture in which the leg portion 11 is implanted in the cover body 2 and is in an inverted posture. Is attached, the dummy press-contact blades 10A10B of the cover body 2 are pressed against the electric wire 4 to sandwich and hold the electric wire conductor.

The press-fit joint connector of the embodiment shown in FIGS. 1 and 2 has a dummy press-connecting blade 10 having a standing strength before and after the press-connecting blade 2.
Since the A10B is provided, it is possible to effectively carry the wire pulling external force indicated by the arrow in the figure and to prevent the external force from spreading to the press contact blade 6.

"Effect of the invention" As described above, the press-joint joint connector of the present invention prevents the spread of the wire pulling-out force to the press-contact portion of the wire, so that the press-contact posture is stable and the electric conduction performance is excellent and stable. In addition to this, there is an effect that the size of the connector is prevented from being increased and the need for downsizing and compacting the connector is met.

[Brief description of the drawings]

FIG. 1 shows a press-fit joint connector of the first embodiment of the present invention, (A) is a perspective view thereof, (B) is a front sectional view thereof, and FIG. 2: a press-joint joint of another embodiment of the present invention. Front sectional view of connector, FIG. 3: Shows a press-fit joint connector having a conventional structure, (A) is a perspective view thereof, (B) and (C) are front sectional views thereof. Cover body, 3 electric wire receiving groove, 4: electric wire, 5: U-shaped slot, 6: press contact blade, 8: bent wiring portion, 9: uneven portion, 10A10B: dummy press contact blade, 11: leg of dummy press contact blade, 12: Left and right side edge

Claims (1)

(57) [Scope of request for utility model registration] 1. A connector body in which an electric wire accommodating groove is juxtaposed, and a "plate-shaped pressure contact blade comprising a U-shaped slot having an upper opening" is erected transversely in the electric wire accommodating groove, and the connector main body is covered. In a press-fit joint connector consisting of a cover body to be attached,
Before and after the press-contact blade of the electric wire accommodating groove, a “U-shaped slot having an upward opening” is provided, and the U-shaped slot is formed separately from the press-contact blade.
And a metal plate body for cutting and covering the electric wire press-fitted into the V-shaped slot and holding it in parallel with the press-contact blade, and fixing the dummy press-contact blade. A press-fit joint connector characterized in that it is configured as a portion for carrying an external force for pulling out an electric wire which is press-connected to a joint.