JPH06196210A - Pressure contact joint connector - Google Patents

Abstract

PURPOSE:To dispense with a jig for the pressure connecting work by inserting a housing into a case, moving a pressure contact cam terminal, and connecting electric wires by pressure. CONSTITUTION:When electric wires W1, W2 are to be jointed to a pressure contact joint connector 21, a housing 27 is located at the opening section 23a of a case 23, temporary hook projections 41 are inserted into temporary hook hole section 43 of the case 23 respectively, and the housing 27 is temporarily hooked on the case 23. The electric wires W1, W2 are stored in electric wire insertion grooves 25 of the housing 27. The housing 27 is pressed to be inserted into the case 23. The cam projections 39 of a pressure contact cam terminal 29 are slid on a slope 33, and the terminal 29 is lifted and protruded into the grooves 25. The electric wires W1, W2 are inserted into the pressure contact grooves 37 of the terminal 29 into pressure contact with the terminal 29. The electric wires W1, W2 are jointed together via the terminal 29.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulation displacement joint connector for interconnecting a plurality of electric wires.

[0002]

2. Description of the Related Art FIG. 5 shows a pressure contact joint connector 1 similar to that disclosed in Japanese Utility Model Laid-Open No. 56-44472. In the same figure, this pressure welding joint connector 1 is
It comprises a housing 5 in which two wire receiving grooves 3 are formed, and a cover 11 which is connected to the housing 5 by a hinge 7 and in which a pressure contact terminal 9 is embedded. Two press contact grooves 13, 13 are formed in the press contact terminal 9. Also,
A locking piece 17 that forms the locking hole 15 is provided on the outside of the housing 5, and a locking protrusion 19 that is locked in the locking hole 15 is provided on the cover 11 in a protruding manner.

In order to joint the two electric wires W1 and W2 with the pressure contact joint connector 1, the electric wires W1 and W2 are first accommodated in the electric wire accommodating groove 3 of the housing 5. Next, the hinge 7 is bent and the upper portion of the housing 5 is closed by the cover 11. Then, by pressing the cover 11 and the housing 5 with a jig such as pliers, the electric wires W1 and W2 are inserted into the press-contact groove 13 of the press-contact terminal 9 and press-contacted. As a result, the electric wire W1 and the electric wire W2 are electrically connected via the press contact terminal 9.

[0004]

However, the above-mentioned conventional pressure contact joint connector 1 has a problem that the pressure contact work is troublesome because a jig such as pliers is required during the pressure contact work.

Therefore, it is an object of the present invention to provide a press-joint connector which does not require a jig during press-connecting work.

[0006]

In order to achieve the above object, in the present invention, a case having one opening, and a plurality of electric wires which are inserted / fitted from the opening and are parallel to the case insertion direction are accommodated. Housing with a wire receiving groove formed in it, and a housing with which the wire can be inserted into and retracted from the housing, and a pressure contact cam terminal with a wire pressure contact groove to which the wire is pressed. And a press contact cam terminal moving means for protruding the cam terminal into the wire receiving groove to press the wire into the wire pressing groove.

[0007]

In order to join the electric wires to each other by the pressure welding joint connector of the present invention, the electric wires to be connected are respectively accommodated in the electric wire accommodating grooves of the housing. Next, when the housing is inserted into the case through the opening, the pressure contact cam terminal moving means causes the pressure contact cam terminals to project into the wire receiving groove, and the wires are respectively inserted into the pressure contact grooves of the pressure contact cam terminals and pressed against each other. As a result, the electric wires are electrically connected to each other via the pressure contact terminal.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the pressure contact joint connector according to the present invention will be described below. 1 is a partially cutaway perspective view showing a state where the electric wires W1 and W2 are jointed by the press contact joint connector 21, and FIG. 2 is a perspective view showing a press contact procedure. FIG. 3 is a cross-sectional view showing the movement of the press contact cam terminal during press contact.

As shown in FIGS. 1 and 2, the press contact joint connector 21 of this embodiment includes a case 23, a housing 27 which is inserted and fitted in the case 23, and in which a wire receiving groove 25 is formed. It is composed of a pressure contact cam terminal 29 incorporated in the housing 27 and a pressure contact terminal moving means 31 for projecting the pressure contact cam terminal 29 into the electric wire housing groove 25.

The case 23 is a box body having one opening.
On the inner walls facing each other, slopes 33, 33 that gradually rise from the opening 23a toward the back are formed, respectively. The housing 27 is inserted / fitted into the inside from the opening 23 a of the case 23.

The housing 27 has a substantially rectangular shape, and has two wire receiving grooves 25, 25 in the upper surface of which the wire is received.
3 is formed along the insertion / fitting direction. Also,
In the housing 27, the pressure contact terminal accommodating groove 3 which is opened in the electric wire accommodating grooves 25, 25 along the direction intersecting with the electric wire accommodating grooves 25, 25 and is also opened in both side walls.
5 are provided. The pressure contact cam terminal 29 is vertically movably inserted into the pressure contact terminal receiving groove 35.

The pressure contact cam terminal 29 is provided in the wire receiving grooves 25, 2.
Corresponding to No. 5, two press-contact grooves 37, 37 having press-contact blades are formed. Also, the cam projections 39, 3 from both sides
9 is projected. These cam projections 39, 39 are
When the pressure contact cam terminal 29 is accommodated in the pressure contact terminal accommodating groove 35, the pressure contact cam terminal 29 projects from the outer wall of the housing 27. These cam projections 39, 39 are provided on the housing 2 for the case 23.
The insertion of 7 slides on the slope 33 to move the pressure contact cam terminal 29 upward. In this case, the amount of upward movement of the pressure contact cam terminal 29 depends on the housing 2 to the case 23.
It is set smaller than the insertion movement amount of 7.

The pressure contact terminal moving means 31 accommodates the above-mentioned slopes 33, 33, a cam protrusion 39 sliding on the slopes 33, 33, and a pressure contact cam terminal 29 having the cam protrusion 39 formed therein. The pressure contact terminal accommodating groove 35.

Temporary locking protrusions 41, 41 are provided on both side walls of the housing 27, and these temporary locking protrusions 41, 41 are formed on the inner wall of the case 23. The housing 27 is inserted into and locked by the case 43.
Temporarily lock to 3.

Further, a main locking hole 45 is formed on the bottom of the case 23 on the side of the opening 23a. The main locking hole 45 is formed on the bottom of the housing 27. The lock 47 is inserted and locked, and the housing 27 is permanently locked to the case 23. At this time, the stopper 27 a protruding from both side walls of the rear end portion of the housing 27 comes into contact with the edge portion of the opening 23 a of the case 23, so that the case 23
The amount of insertion of the housing 27 into the housing is regulated.

In order to joint the two electric wires W1 and W2 with such a pressure welding joint connector 21, as shown in FIG.
As shown in, when the pressure contact cam terminal 29 is assembled in the pressure contact terminal accommodation groove 35 of the housing 27, the pressure contact cam terminal 29 is retracted from the wire accommodation grooves 25, 25. From this state, as shown in FIGS. 3 and 4A, the housing 27 is positioned in the opening 23a of the case 23, and the temporary locking protrusions 41 are inserted into the temporary locking hole portions 43 of the case 23, respectively. Then, the housing 27 is temporarily locked to the case 23. Next, as shown in FIG. 4B, the wires W1 and W2 are housed in the wire housing grooves 25 and 25 of the housing 27.

Then, the housing 27 is pressed and inserted into the case 23. By this inserting operation, the cam projection 39 of the press contact cam terminal 29 slides on the slopes 33, 33,
The press contact cam terminal 29 rises and projects into the electric wire housing grooves 25, 25. When the press-contact cam terminal 29 projects into the wire receiving grooves 25, 25, the electric wires W1 and W2 are inserted into the press-contact groove 37 of the press-contact cam terminal 29 as shown in FIG. W1 and W2 are pressed against each other. As a result, the electric wires W1 and W2 are jointed via the pressure contact cam terminal 29.

In this case, the amount of upward movement of the press contact cam terminal 29 is set smaller than the amount of movement of the housing 27 inserted into the case 23, so that the housing 27 is inserted into the case 23 with a relatively small force. You can do it.

In this state, the main locking lock 47 is locked in the main locking hole portion 45, and the housing 27 is finally locked in the case 23.

In the above embodiment, two electric wires W1,
Although the example in which W2 is jointed is shown, it is also possible to joint two or more electric wires.

[0021]

As described above, according to the pressure contact joint connector of the present invention, by inserting the housing into the case, the pressure contact cam terminal moving means moves the pressure contact cam terminal and presses the electric wire. A jig is not required during the pressure welding work, and the pressure welding workability is improved.

[Brief description of drawings]

FIG. 1 is a partially broken perspective view showing an embodiment of a pressure contact joint connector according to the present invention.

FIG. 2 is an exploded perspective view showing a press contact joint connector according to the present invention.

FIG. 3 is a perspective view showing a state where the housing is temporarily locked to the case.

4A and 4B are diagrams showing a state of pressure-welding an electric wire by a pressure-welding joint connector according to the present invention, in which FIG. 4A is a sectional view showing a state where the housing is temporarily locked to the case, and FIG. FIG. 6C is a cross-sectional view showing a state in which the cam projection 39 slides on the slope 33, and FIG. 7C is a cross-sectional view showing a state in which the housing is completely inserted into the case and the press contact cam terminal presses the electric wire.

FIG. 5 is a perspective view showing a conventional pressure contact joint connector.

[Explanation of symbols]

 21 pressure contact joint connector 23 case 23a opening 25 wire receiving groove 27 housing 29 pressure contact cam terminal 31 pressure contact terminal moving means 33 slope 35 pressure contact terminal accommodation groove 37 pressure contact groove 39 cam protrusion W1, W2 wire

Claims (1)

[Claims] 1. A press-joint connector for connecting a plurality of electric wires to each other, a case having one opening, and a plurality of electric wires inserted into and fitted into the case through the opening and parallel to the case insertion direction. A housing having an electric wire receiving groove formed therein, a press-fitting cam terminal having an electric wire press-connecting groove formed therein, which is assembled to the housing so as to be retractable into the electric wire receiving groove, and in which an electric wire is press-contacted; A crimping cam connector moving means for projecting the crimping cam terminal into the electric wire receiving groove to press the electric wire into the electric wire crimping groove by inserting the housing.