JPH0214154Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a joint connector used for connecting branch circuits in automotive wiring harnesses, etc.

"Prior Art" A joint connector conventionally used for connecting branch circuits in automotive wiring harnesses, etc. has a plurality of terminal storage chambers 1 arranged in parallel and in a penetrating state, as shown in FIG. 4, for example. A housing 21 made of an insulating material formed and the housing 2
A joint terminal 4 is inserted into each of the terminal storage chambers 1 from one opening thereof and has a conductor 3 connected to its base end, and a short terminal 5 is fitted into the terminal storage chamber 1 from the other opening. By inserting each contact piece 5a at the tip of the short terminal 5 between the clamping portions 6 at the tip of the joint terminal 4 in each terminal storage chamber 1 and pinching them, the conductive wires 3 can be connected to each other. It is designed to be electrically connected.

"Problems to be Solved by the Invention" However, when inserting the joint terminal 4 and the short terminal 5 from both sides of the terminal storage chamber 1 and electrically connecting them therein, the short terminal 5 may be deformed or the like. When the tip of the contact piece 5a comes into close contact with the inner wall surface of the terminal storage chamber 1 as shown in FIG. 5 due to This results in a problem in that the resistance to insertion increases and the workability of these connections deteriorates.

The present invention effectively solves the above problems.
It is an object of the present invention to provide a joint connector in which a contact piece of a short terminal can be easily inserted between the holding parts of the joint terminal, and the workability of connecting these can be improved.

"Means for Solving the Problems" The joint connector of the present invention is provided with a clamping portion in which an opening facing forward in the insertion direction is formed by a support piece and a pressing piece on the joint terminal, and A plurality of contact pieces are provided which are inserted into the opening of the holding part of each joint terminal and are held in an electrically connected state between the support piece and the pressing piece. The present invention is characterized in that a guide protrusion is provided to support the tip of the contact piece away from the inner wall surface of the terminal storage chamber and toward the opening of the clamping portion of the joint terminal.

"Function" The joint connector of the present invention supports the contact piece of the short terminal on the guide protrusion to prevent the tip of the contact piece from coming into close contact with the inner wall surface of the terminal storage chamber, and also prevents the contact piece from coming into close contact with the inner wall surface of the terminal storage chamber. The tip of the contact piece lifted from the inner wall surface by the protrusion is guided to the opening of the clamping part of the joint terminal.

Embodiment An embodiment of the joint connector of the present invention will be described below with reference to FIGS. 1 to 3.

Also in the joint connector of this embodiment,
A housing 2 made of an insulating material in which a plurality of terminal storage chambers 1 are formed in parallel and in a penetrating state, and a conductor 3 is inserted into each terminal storage chamber 1 of the housing 2 from one opening thereof, and a conductive wire 3 is inserted at the base end. The joint terminal 4 is connected to the joint terminal 4, and the short terminal 5 is fitted into the terminal storage chamber 1 from the other opening to electrically connect the joint terminals 4, and the contact of the short terminal 5 is provided. It is similar to the conventional example in that the pieces 5a are held in the holding part 6 of the joint terminal 4 to maintain the electrical connection, but the inner wall of each terminal storage chamber 1 , the contact piece 5a of the short terminal 5
The difference is that a guide protrusion 7 is provided, the tip of which is spaced from the inner wall surface and supported between the clamping parts 6 of the joint terminal 4.

To explain these details, the short terminal 5 is formed to have a U-shaped cross section by bending a metal plate, etc.
A plurality of contact pieces 5a are respectively fitted into each terminal storage chamber 1 and brought into contact with each joint terminal 4.
are integrally connected by connecting pieces 5b at the same pitch as the terminal storage chamber 1, and are locked to the inner wall of the terminal storage chamber 1 when the locking pieces are fitted into the terminal storage chamber 1. 5c are provided protruding from both sides.

Further, the joint terminal 4 is formed by bending a metal plate, and is provided with a crimp portion 8 to which the clamping portion 6 and the conducting wire 3 are connected. The clamping portions 6 are erected on both side edges along the insertion direction of the joint terminal 4, bent inward in a hook shape, and have their inner edges opposed to each other with a distance between them. A pair of supporting pieces 9 and an elastically deformable pressing piece 10 that is folded back toward the proximal end on the back side of the supporting piece 9 and presses the back side of the supporting piece 9. The contact piece 5a of the short terminal 5 inserted through the opening between the support piece 9 and the pressing piece 10 is held in close contact with the contact piece 5a. Further, on the back side of the clamping portion 6, a locking piece 11 is provided which protrudes from the inner wall of the terminal storage chamber 1 when inserted into the terminal storage chamber 1.
A locking piece 12 that is engaged with is formed. The support piece 9 is formed in a shape that allows it to come into close contact with the inner wall surface of the terminal storage chamber 1, so as to reduce the so-called backlash between the joint terminal 4 and the terminal storage chamber 1.

Further, the guide protrusion 7 is provided on the inner wall of each terminal storage chamber 1 of the housing 2 so as to be substantially opposed to the lock piece 11, and is interposed between the opposing support pieces 9 when the joint terminal 4 is inserted. The supporting piece 9 is disposed so as to project to a height that is equal to or slightly smaller than the thickness of the supporting piece 9.

In addition, the reference numeral 13 in the figure is an insulating cover that is hingedly connected to the housing 2 and closes the terminal storage chamber 1 so as to cover the short terminal 5 attached to the housing 2.

When assembling the joint connector configured in this way, the short terminal 5 is attached to the housing 2 as shown by arrow A in FIG. 1, and each contact piece 5a is fitted into each terminal storage chamber 1. As shown in FIGS. 2 and 3, the tip of the contact piece 5a is supported by the guide protrusion 7 so as to be spaced apart from the inner wall surface of the terminal storage chamber 1. As shown in FIG. In this case, the distance between the support pieces 9 in the clamping part 6 of the joint terminal 4 is
Since the thickness of the joint terminal 4 is almost the same as that of the
When the support piece 9 of the holding part 6 is inserted between the inner wall surface of the terminal storage chamber 1 and the contact piece 5a,
As shown by the chain line in the figure, the contact piece 5a is reliably inserted between the support piece 9 and the pressing piece 10.

"Effects of the Invention" As explained above, according to the joint connector of the present invention, the contact piece of the short terminal is supported on the guide protrusion, and the tip of the contact piece is kept in close contact with the inner wall surface of the terminal storage chamber. In addition to preventing the phenomenon of
By guiding the tip of the contact piece into the opening of the clamping part of the joint terminal, it is possible to connect them smoothly without colliding, improving the connection workability, and ensuring a complete connection and reliable electrical connection. This has the effect that a connection state can be obtained.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing one embodiment of the joint connector of the present invention, Fig. 2 is a front cross-sectional view of the joint connector shown in Fig. 1 with a part omitted in the middle of assembly, and Fig. 3 is a cross-sectional view of the joint connector of the present invention. Fig. 4 is an exploded perspective view showing a conventional example of a joint connector, and Fig. 5 is a view taken along the - line in the figure, and Fig. 5 is an exploded perspective view showing a conventional example of a joint connector. It is a front sectional view showing a state where they collide. 1...Terminal storage chamber, 2...Housing, 3...
Conductor, 4...Joint terminal, 5...Short terminal, 5a...Contact piece, 5b...Connection piece, 5c...
Locking piece, 6... Holding part, 7... Guide projection, 8...
Crimping part, 9... Support piece, 10... Pressing piece, 11...
... Lock piece, 12 ... Locking hole, 13 ... Insulation cover.

Claims (1)

[Scope of utility model registration request] a housing 2 made of an insulating material in which a terminal storage chamber 1 is formed; a joint terminal 4 that is inserted into each terminal storage chamber of the housing through one opening thereof and to which a conductive wire 3 is connected to the base end; A short terminal 5 is fitted into the terminal storage chamber from the other opening and electrically connects the other joint to each other. A clamping portion 6 is provided with an opening directed toward the
The short terminal is provided with a plurality of contact pieces 5a which are inserted into the openings of the clamping parts of each joint terminal and are clamped in an electrically connected state between the support piece and the pressing piece. A joint connector characterized in that a guide protrusion 7 is provided on an inner wall portion to support the tip of each contact piece of the short terminal away from the inner wall surface of the terminal storage chamber and toward the opening of the clamping portion.