JP3049994B2 - Joint connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint connector for connecting a plurality of connection wires.

[0002]

2. Description of the Related Art Conventionally, as this type of joint connector, one disclosed in Japanese Patent Application Laid-Open No. 61-277180 is known. The joint connector shown in the publication is a connector housing having a plurality of terminal housings of the same shape,
A plurality of male terminals are accommodated on the side of the housing body into which the connector housing can be inserted, so as to be inserted into the female terminals provided in the terminal accommodating chamber. It is standing. put it here,
The male terminals are formed by connecting the female terminals to be connected to each other.

[0003] In such a configuration, after a female terminal is connected to the end of a connecting wire to be connected to each other and accommodated in the terminal accommodating chamber of the connector housing, when the connector housing is inserted into the housing body, the connector housings are mutually connected. A plurality of connection terminals are electrically connected to each other via the male terminals because the connected male terminals enter and connect to the predetermined female terminals.

[0004]

The joint connector is also used when a connecting wire connected to a power supply side is branched into a connecting wire for power supply in a plurality of electric devices. By the way, since the current required for each electric device flows through the connection electric wire on the power supply side, the connection electric wire on the power supply side needs to be thicker than the connection electric wire on the branch side. However, in the above-described conventional joint connector, there is a problem that the terminal housing chamber for housing the connection wire is fixed, so that even if it is desired to use a thick connection wire, it cannot be housed.

[0005] The present invention has been made in view of the above problems, and has as its object to provide a joint connector that can use connection wires having different thicknesses.

[0006]

In order to achieve the above object, the invention according to claim 1 is characterized in that it is fixed to the tip of a connecting wire.
And the terminal receiving chamber receiving and holding the terminals, connectors Howe
In a joint connector having a plurality of chambers in upper and lower stages in a jing , a predetermined terminal housed in the terminal housing chamber is brought into contact with a joint terminal so as to electrically connect predetermined connection wires to each other . Ko
The upper and lower terminal accommodating chambers of the connector housing are separated from each other.
So that they are exposed in each terminal accommodating chamber.
Terminals are sized to correspond to the thickness of the connecting wires.
Both the barrel and the barrel
A contact part that forms a through shape and makes elastic contact with the joint terminal
And each terminal accommodating chamber is provided at each end of the terminal accommodating chamber.
While the rear part that accommodates the contact part of the child has a common shape,
Opening side of the terminal chamber to accommodate the barrel of each terminal
The configuration is such that the portions are formed in a plurality of sizes corresponding to the thicknesses of the plurality of connection wires.

[0007]

[0008]

The invention according to claim 1 configured as described above is
In the case of thick connecting wires, the end with a large barrel
And small connecting wires have a small barrel.
Terminal is fixed. And it is fixed to the thick connecting wire
Terminals are housed in a terminal chamber with a large opening
The terminal fixed to the thin connection wire is
It is housed in a terminal housing chamber having a portion. Where the terminal
The contact part has a common shape regardless of the size of the barrel part
The terminal housing with a large opening
Is a thin connection instead of a terminal fixed to a thick connection wire.
The terminal fixed to the electric wire can also be accommodated.

[0009]

As described above, the present invention provides a joint connector capable of accommodating connection wires having different thicknesses as needed and using an appropriate wire according to the electric capacity and the like. be able to. Further, even in a terminal accommodation chamber which is formed large for a thick connecting wire, a thin connecting wire can also be used, so that it can be used even when only a certain thickness of connecting wire is used.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a joint connector according to one embodiment of the present invention. In the figure, a connector housing 10 is formed in a housing shape having an opening on one side, and a partition is formed from the side of the opening toward the inside to form a total of ten terminal housing chambers 11 in five upper and lower stages. Has formed. Of the terminal accommodating chambers 11, the terminal accommodating chamber 11 at the center of each of the upper and lower stages
“a” has a larger opening and a larger depth than the left and right terminal accommodation chambers 11b.

A space in which a plate-shaped joint terminal 20 can be inserted is formed between the terminal housing chambers 11 in the upper and lower stages, and the peripheral wall of each terminal housing chamber 11 facing the same space is formed on the peripheral wall. A notch 12 communicating with the space is formed in the depth direction. A guide groove 13 is formed in the peripheral wall of each terminal accommodating chamber 11 at a corner portion of the peripheral wall facing the outside of the connector housing 10 in a depth direction corresponding to the guide projection 31 c of the terminal 30. The joint terminal 20 is a plate material that can be inserted into the space between the two upper and lower terminal accommodating chambers 11, and the distal end thereof is separated into a tab shape so as to be inserted between the notches 12 facing each other. The rear end side forms a connecting portion 22 that connects the contact portions 22 to each other. The separated contact portion 21 is in the shape of a strip, and has several projections 23 for retaining it on the side surface. Further, in the same space, a connecting wall which is vertically connected according to the separated shape of each contact portion 21 is formed.
When 0 is inserted, the projection 23 of the contact portion 21 advances while abutting on the connecting wall, so that it does not easily retreat at the stop position.

As shown in FIG. 2 and FIG. 3, the terminal 30 has a contact portion 31 on the front end side for contacting the contact portion 21 of the joint terminal 20, and holds and connects the connection wire 40 on the rear end side. A barrel portion 32 is provided. 2 is used for a thick connection wire 41, and FIG. 3 is used for a thin connection wire 42. The contact portion 31 has the same shape, but the barrel portion 32 has a connection wire. 4
The size is different according to the thickness of 0. Contact part 31
Is formed so that both side portions are erected to form side walls 31a, and the tongue piece 31b, which is formed in a long strip and has a width that can be inserted between the side walls 31a, 31a, toward the side of the side wall 31a. It is configured to bend so as to be folded, and to have elasticity like a spring. The guide projection 31c is formed by projecting a part of the bent portion of the one side wall 31a downward, and the contact portion 31 is formed on the wall surface on the side opposite to the side where the tongue piece 31b is folded back. Form a lock hole 31d.

On the other hand, the inner portion of the terminal accommodating chamber 11 has a shape into which the contact portion 31 can be inserted, and the outer wall surface of the connector housing 10 in the terminal accommodating chamber 11 enters the lock hole 31d. And engageable projection 1
A flexible locking piece 14 with 4a is formed. The barrel portion 32 is composed of an insulation barrel 32a for holding the covering portion of the connection wire 40 and a wire barrel 32b for holding the core wire, respectively, according to the diameters of the thick connection wire 41 and the thin connection wire 42. It is formed with a different size. Next, the operation of the present embodiment having the above configuration will be described. First, when the joint terminal 20 is inserted into the connector housing 10, the contact portion 21 of the joint terminal 20 is inserted to a position facing the notch 12 formed in the terminal accommodating chamber 11. In the present embodiment, notches 12 in all terminal accommodation chambers 11 are provided.
The contact portion 21 of the joint terminal 20 faces the portion. On the other hand, one end of the connection wire 41 is connected to the primary side, and the other end of the connection wire 41 is connected to the thick terminal 3.
At the barrel portion 32 at 0, it is swaged and held. on the other hand,
One end of a connection wire on the secondary side is connected to the plurality of electric devices, and the other end of each connection wire 42 is caulked and held by the barrel portion 32 of the terminal 30 for a thin object.

The connecting wires 41 are inserted into the terminal accommodating chamber 11a until the lock pieces 14 engage with the lock holes 31d, and the plurality of connecting wires 42 are inserted into the terminal accommodating chamber 11b. Insert until the projection 14a engages with the lock hole 31d. As shown in FIG.
When the contact portion 31 is inserted into the inner part of the terminal accommodating chamber 11, the protrusion 14 a of the lock piece 14 of the connector housing 10 enters and engages with the lock hole 31 d of the terminal 30, and is held in the terminal accommodating chamber 11. Is done. At this time, the tongue piece 31b in the contact portion 31 faces the notch 12 and tries to protrude from the notch 12, so that the notch 1
It comes into contact with the contact portion 21 of the joint terminal 20 held facing the two portions.

As described above, since the contact portions 21 of the joint terminal 20 are inserted so as to face all the notches 12, the contact portions 31 of the terminals 30 accommodated in the terminal accommodating chamber 11 are joined together. 20 are electrically connected to the contact portion 21 via the connecting portion 22. That is, the thick connection wire 41 connected to the primary side is connected to the joint terminal 20.
Through a plurality of connection wires on the secondary side. By the way, in the above-described embodiment, the terminal 30 to which the thick connection wire 41 is connected is inserted into the large terminal accommodating chamber 11a, and the terminal 3 to which the thin connection wire 42 is connected.
0 is inserted into the smaller terminal accommodating chamber 11b. However, as shown in FIG. 5, even if the terminal 30 to which the thin connection wire 42 is connected is inserted into the larger terminal accommodating chamber 11a, the back portion of each terminal accommodating chamber 11 can hold the common contact portion 31. Therefore, the terminal 30 is held in the terminal accommodating chamber 11a.

That is, although the connector housing 10 has a large terminal accommodating chamber 11a, it cannot be used only when only the thick connection wires 41 are used, but is used only with the thin connection wires 42. It can be used even if it does. In the embodiment described above, all the terminals 30 inserted into all the terminal accommodating chambers 11 are connected to each other by using the integral joint terminal 20. By using the joint terminal 20 described above, the connection wires to be connected to each other may be divided. As described above, the terminal housing chambers 11 having a plurality of sizes are formed in the connector housing 10 so that the thick connection wires 41 and the thin connection wires 42 can be simultaneously received and connected to each other. Further, since the contact portion 31 of each terminal 30 has a common shape, even a thin connection wire can be held in the terminal housing chamber 11a for a thick connection wire, and is not dedicated to a thick object.

[Brief description of the drawings]

FIG. 1 is a perspective view of a joint connector according to an embodiment of the present invention.

FIG. 2 is a perspective view of a terminal used for a thick connection wire.

FIG. 3 is a perspective view of a terminal used for a thin connection wire.

FIG. 4 is a cross-sectional view showing a state in which a thick connection wire is inserted into a large terminal accommodating chamber.

FIG. 5 is a cross-sectional view showing a state in which a thin connection wire is inserted into a large terminal accommodating chamber.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Connector housing 11, 11a, 11b ... Terminal accommodating chamber 20 ... Joint terminal 30 ... Terminal 31 ... Contact part 32 ... Barrel part 40, 41, 42 ... Connection electric wire

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 13/46 H01R 13/42 H01R 31/08

Claims (1)

(57) [Claims] A terminal fixed to an end of a connecting wire is housed therein.
Terminal housing to hold the connector
A joint connector comprising a plurality of chambers arranged in stages , wherein predetermined terminals housed in the terminal housing chamber are brought into contact with joint terminals so as to electrically connect predetermined connection wires to each other. Out of
It is provided so as to partition the upper and lower terminal accommodation chambers from each other.
The terminals are exposed in each terminal accommodating chamber, and the terminals have a size corresponding to the thickness of the plurality of connection wires.
And the size of the barrel
But have a common shape and elastic contact with the joint terminals
And a contact portion that contacts each of the terminals.
While the back side portion that accommodates the contact portion has a common shape,
The barrel section of each terminal is accommodated in the terminal accommodating chamber.
A joint connector wherein an opening side portion is formed in a plurality of sizes corresponding to thicknesses of a plurality of connection wires.