JPH0338708B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a multi-stage connector that can be easily connected and a method for press-connecting electric wires by connecting the multi-stage connector.

[Conventional technology]

FIG. 7 is a perspective view showing a conventional multistage connector before assembly, and FIG. 8 shows a state after assembly.

In the figure, 22 is a lower connector housing, 23 is an upper connector housing, and both are connected by a flexible connecting band 24. Also, 25 is
Locking cover with connecting locking window 26, 27, 28
is a locking protrusion.

After connecting an electric wire (not shown) to the pressure contact terminal 30 installed in the terminal housing chamber 29, the locking cover 25 is placed over the lower connector housing 22 (the connecting locking window 26 is locked). Rotate the upper connector housing 23 in the direction of arrow A and overlap it with the lower connector housing 22 via the locking cover 25 (engage the locking projection 28 with the connecting locking window 26). assembly is performed by

However, in the conventional multi-stage connector described above, since the connector housings 22 and 23 are connected by the connecting band 24, when three or more stages of connector housings are provided, the assembly direction of each connector housing (arrow The problem arises that the direction (a) becomes complicated and difficult to assemble.

Furthermore, if the connecting band 24 were to be damaged, there was also the problem that the entire connector would become unusable.

Furthermore, the work of connecting the electric wire to the pressure contact terminal 30 requires a large number of man-hours.

[Problem to be solved by the invention]

In view of the above-mentioned points, the present invention provides a multi-stage connector and electric wire that can easily assemble a connector housing into three or more stages, have good compatibility in the event of damage, and can perform pressure-welding work of electric wires with a small number of man-hours. The purpose is to provide a pressure welding method.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a connector housing with a connecting tool, and provides a temporary locking protrusion and a permanent locking protrusion in the connecting direction to the connector housing on the side to be connected opposite to the connector housing. The basic means is a multi-stage connector characterized by providing the temporary locking projections and the permanent locking projections side by side, and making it possible for the connector to sequentially engage with the temporary locking projections and the permanent locking projections. It is effective to provide a pressure contact terminal upright in the connection direction on the connector housing on the side to be connected, and to provide a wire pressing protrusion on the connector housing on the connection side opposite to the pressure contact terminal.

Furthermore, in the multi-stage connector, the electric wire is placed on the insulation displacement terminal with the connecting tool engaged with the temporary locking projection, and the electric wire is engaged with the final locking projection. This method employs an electric wire pressure welding method characterized in that a pressing protrusion connects the electric wire to the pressure contact terminal.

[Effect]

By fitting the locking protrusion of the connected side connector housing into the connecting tool of the connector housing, a plurality of connector housings can be easily connected and provided in multiple stages.

Here, since the connector housings have the same shape, they are compatible and easy to maintain.

Furthermore, when connecting the connector housing, if the electric wire is placed on the pressure contact terminal in the temporary locking state where the connecting tool is engaged with the temporary locking protrusion, the connector housing can be connected by an automatic machine etc. By pressing in the direction to connect the connector to the main locking protrusion, the electric wire can be connected to the pressure contact terminal at the same time.

〔Example〕

FIG. 1 is an exploded perspective view showing a multistage connector according to the present invention.

In the figure, 1 is the base housing for the lower stage, 2 is
This is an adapter housing that can be used commonly for the middle stage and the upper stage, and by using the adapter housing 2, it is possible to stack as many stages as desired.

That is, frame-shaped connectors 4 are integrally hung from the lower portions of both side walls 3 of the adapter housing 2 near both ends, and the connectors 4 are fully engaged at the upper side of the connectors 4, that is, at the middle portion of the side walls 3. Further, temporary locking projections 6 are provided on the upper part of the side wall 3 opposite to the main locking projection 5, and on both sides of the temporary locking projection 6 (however, the side wall A desired number of adapter housings 2 are connected to each other by engaging the connecting tool 4 with the locking projections 5 and 6. be able to.

The base housing 1 has approximately the same shape as the adapter housing 2 except for the connector 4, and has a permanent locking projection 5', a temporary locking projection 6', a cover locking projection 7', and a bottom. It has a seat 8 on the wall.

Inside the base housing 1 and the adapter housing 2, a plurality of terminal accommodating chambers 9 are arranged in parallel, and one end of the terminal accommodating chamber 9 and an upper wall portion continuing to the one end are cut out and opened. There is.

Then, a lid part 11 formed integrally with the bottom of the adapter housing 2 is overlapped with the opening part 10 of the base housing 1, and the opening part 10 of the adapter housing 2 is covered with a lid part of another adapter housing (not shown). Further, a cover 12 is placed over the opening 10 of the uppermost adapter housing 2. The cover 12 is provided with a locking tool 13 smaller than the connecting tool 4, and the locking tool 13 engages with the cover locking projection 7 described above.

The bottoms of the lid portion 11 and the cover 12 are provided with electric wire pressing protrusions, which will be described later.

FIG. 2 shows a state in which the above-described multi-stage connectors are temporarily locked in three stages.

That is, as shown in FIG. 4 in which the engagement state between the connector 4 and the locking protrusions 5 and 6 is shown by solid lines, the frame windows 14 of the connector 4 of the adapter housing 2 are used for temporary locking of the lower housing. While engaging the protrusions 6, 6',
The frame end 15 of the connector 4 is connected to the main locking projection 5,
It is brought into contact with the upper surface of 5'. In the cover 12, the lower part of the connector 13 is engaged with the upper part of the cover locking projection 7.

Then, by pressing the upper adapter housing 2 (cover portion 12) in the direction of arrow A, assembly is completed as shown in FIG. 3. That is, as shown by broken lines in FIG.
The frame window 16 of No. 3 is slidably fitted into the cover locking projection 7.

FIG. 5 shows a state in which the electric wires 19a, b are connected to the pressure contact terminals 18a, b by the electric wire pressing protrusions 17a to 17d provided on the cover 12 and the bottom (lid) 11 of the adapter housing 2. .

That is, in the terminal housing chambers 9 of the base housing 1 and the adapter housing 2, the pressure contact terminals 18a,
b, and in the temporarily locked state shown in FIG.
to adjudicate. Then, by the final locking shown in Fig. 3,
The electric wires 19a, b are pressed by the electric wire pressing protrusions 17a to 17d and are press-connected to the press contact terminals 18a, b (see FIG. 6).

Here, the electric wire pressing protrusions 17a to 17d are arranged so that the electric wires can be easily pushed into the pressure contact terminals 18a and 18b.
The pressure contact terminals 18a and 18b are provided so as to be located close to each other on both sides in the axial direction of the electric wire. Further, the tips 20 of the pressing protrusions 17a to 17d are rounded to match the wire diameter 21.

〔Effect of the invention〕

As described above, according to the present invention, a plurality (desired number) of connector housings can be easily connected at once using an automatic machine, etc., and electric wires can be connected to insulation displacement terminals at the same time. The number of man-hours required for connection can be reduced.

Furthermore, because the parts (connector housing) are shared, there is a great advantage in manufacturing, and since they are compatible, maintenance is easy in the event of damage.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing the multi-stage connector of the present invention, Fig. 2 is a perspective view showing the multi-stage connector in a temporarily locked state, and Fig. 3 is a perspective view showing the multi-stage connector in a fully locked state. , FIG. 4 is an enlarged explanatory perspective view of the locking means, FIG. 5 is a vertical cross-sectional view showing a state in which electric wires are pressure-connected to the multistage connector, FIG. 6 is an enlarged view of the main part, and FIG. 7 is a conventional FIG. 8 is a perspective view showing the state of the multistage connector before assembly, and FIG. 8 is a perspective view showing the state after assembly. DESCRIPTION OF SYMBOLS 1... Base housing, 2... Adapter housing, 4... Connector, 5, 5'... Protrusion for permanent locking, 6, 6'... Protrusion for temporary locking, 17a-d...
Wire pressing protrusion, 18a-b...pressure terminal, 19a
~b...Electric wire.

Claims (1)

[Claims] 1. A connector housing is provided with a connecting tool, and a temporary locking protrusion and a permanent locking protrusion are arranged side by side in the connecting direction with respect to the connector housing on the side to be connected opposite to the connector housing. 1. A multi-stage connector, characterized in that the connector is provided so that the connector can be sequentially engaged with the temporary locking protrusion and the permanent locking protrusion. 2. A pressure contact portion of the pressure contact terminal is provided upright in the connection direction on the connector housing on the side to be connected, and a wire pressing protrusion is provided on the connector housing on the connection side facing the pressure contact terminal. multi-stage connector. 3. In the multi-stage connector according to claim 2, the electric wire is placed on the pressure contact terminal with the connector engaged with the temporary locking protrusion, and the connector is engaged with the permanent locking protrusion. An electric wire pressure welding method characterized in that the electric wire pressing protrusion connects the electric wire to the pressure welding terminal.